Provided is a liquid circulation system including: a shield that covers a boring area of a workpiece in which a hole is bored with a tip of a bit attached to a boring device; a liquid container that holds a liquid; a liquid feeder that forcibly feeds the liquid held in the liquid container to the tip; and a liquid collector that forcibly collects a liquid suspension from an area shielded by the shield and returns the liquid suspension to the liquid container. The liquid circulation system is able to ensure liquid circulation while reliably preventing backflow of the liquid suspension.
A boring device according to one embodiment of the present invention includes: a cutting edge; a drive unit that rotationally drives the cutting edge; a feed flow path through which a cooling liquid is fed to the cutting edge; and a tube pump that forces the cooling liquid in the feed flow path to flow to the cutting edge. The tube pump includes a feed tube constituting a part of the feed flow path and a first pressing mechanism that presses the feed tube, and the first pressing mechanism is driven by the drive unit.
B28D 7/02 - Accessories specially adapted for use with machines or devices of the other groups of this subclass for removing or laying dust, e.g. by spraying liquidsAccessories specially adapted for use with machines or devices of the other groups of this subclass for cooling work
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
F04B 43/12 - Machines, pumps, or pumping installations having flexible working members having peristaltic action
Liquid circulating device consisting of circulating pump,
tubes and liquid container for preventing dust scattering,
reducing heat generation of the drilled object, and
suppressing noise generation, used for machines for drilling
stone or concrete; liquid circulating device consisting of
circulating pump, tubes and liquid container for preventing
dust scattering, reducing heat generation of the drilled
object, and suppressing noise generation, used for machines
for drilling tiles; metalworking machines, metalworking
tools and their parts and fittings; construction machines,
apparatus and their parts and fittings; stone working
machines, apparatus and their parts and fittings; tile
working machines, apparatus and their parts and fittings;
concrete working machines, apparatus and their parts and
fittings; lumbering, woodworking, or veneer or plywood
making machines.
Liquid circulating device consisting of circulating pump,
tubes and liquid container for preventing dust scattering,
reducing heat generation of the drilled object, and
suppressing noise generation, used for machines for drilling
stone or concrete; liquid circulating device consisting of
circulating pump, tubes and liquid container for preventing
dust scattering, reducing heat generation of the drilled
object, and suppressing noise generation, used for machines
for drilling tiles; metalworking machines, metalworking
tools and their parts and fittings; construction machines,
apparatus and their parts and fittings; stone working
machines, apparatus and their parts and fittings; tile
working machines, apparatus and their parts and fittings;
concrete working machines, apparatus and their parts and
fittings; lumbering, woodworking, or veneer or plywood
making machines.
Liquid circulating devices for use with drilling machines for drilling stone or concrete consisting of a circulating pump, tubes and a liquid container for preventing dust scattering, reducing heat generation of the drilled object, and suppressing noise generation; liquid circulating devices for use with machines for drilling tiles consisting of a circulating pump, tubes and a liquid container for preventing dust scattering, reducing heat generation of the drilled object, and suppressing noise generation; metalworking machines, namely, drilling machines for metalworking, bending machines, broaching machines, cutting machines, grinding machines, hydraulic presses, machining centers, perforating machines, planning machines, punching presses, shearing machines, tubing mills, metalworking machines tools and their replacement parts; construction machines, namely, drills for construction industry and their replacement parts; stone working machines and their replacement parts; tile working machines, namely, drilling machines for tile working, power tools, namely, tile saws; tile removal and cutting machines and their replacement parts; concrete working machines, namely, drilling machines for concrete working, concrete construction machines, concrete mixers, concrete paving machines and their replacement parts; lumbering machines and woodworking machines, namely, lumbering drills, drilling machines for woodworking, lumbering band saws, circular saws, sanding machines, saw-tooth setting machines, and veneer manufacturing or plywood making machines, namely, drilling machines for veneer manufacturing, drilling machines for plywood making, plywood clipping machines, plywood drilling machines, plywood finishing machines, plywood gluing machines, plywood jointing machines, plywood presses
Liquid circulating devices for use with drilling machines for drilling stone or concrete consisting of a circulating pump, tubes and a liquid container for preventing dust scattering, reducing heat generation of the drilled object, and suppressing noise generation; liquid circulating devices for use with machines for drilling tiles consisting of a circulating pump, tubes and a liquid container for preventing dust scattering, reducing heat generation of the drilled object, and suppressing noise generation; metalworking machines, namely, drilling machines for metalworking, bending machines, broaching machines, cutting machines, grinding machines, hydraulic presses, machining centers, perforating machines, planning machines, punching presses, shearing machines, tubing mills, metalworking machines tools and their replacement parts; construction machines, namely, drills for construction industry and their replacement parts; stone working machines and their replacement parts; tile working machines, namely, drilling machines for tile working, power tools, namely, tile saws; tile removal and cutting machines and their replacement parts; concrete working machines, namely, drilling machines for concrete working, concrete construction machines, concrete mixers, concrete paving machines and their replacement parts; lumbering machines and woodworking machines, namely, lumbering drills, drilling machines for woodworking, lumbering band saws, circular saws, sanding machines, saw-tooth setting machines, and veneer manufacturing or plywood making machines, namely, drilling machines for veneer manufacturing, drilling machines for plywood making, plywood clipping machines, plywood drilling machines, plywood finishing machines, plywood gluing machines, plywood jointing machines, plywood presses
7.
LIQUID CIRCULATION SYSTEM, AND DRILLING SYSTEM PROVIDED WITH SAME
The present invention comprises: a shield part (50) that covers a drilled section of a body to be drilled that is drilled with a cutting edge section (8) of a bit (7) attached to a drilling device (2); a liquid container (40) that stores liquid; a liquid supply device (31) that forcibly supplies the liquid stored in the liquid container (40) to the cutting edge section (8); and a liquid recovery device (35) that forcibly recovers a suspension from a section shielded by the shield part (50) and returns same to the liquid container (40). Due to this configuration, provided is a liquid circulation system (30) in which a suspension can be circulated by appropriately suppressing backflow of the suspension.
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
B28D 7/02 - Accessories specially adapted for use with machines or devices of the other groups of this subclass for removing or laying dust, e.g. by spraying liquidsAccessories specially adapted for use with machines or devices of the other groups of this subclass for cooling work
B23Q 11/10 - Arrangements for cooling or lubricating tools or work
A device for forming a diameter-enlarged hole portion by cutting into a hole that is formed in a workpiece, the device including: a bow jaw including a shaft and a guide, the guide including a distal end surface and an sloped surface, the distal end surface being provided on an opposite side of the guide from the shaft, the sloped surface being sloped from the shaft side of the guide toward the distal end surface side of the guide in a direction away from a center axis of the shaft; and a cutter blade including a cutting portion whose distal end is provided with a cutting edge, the cutting portion being slidable along the sloped surface. The bow jaw further includes a suction passage that includes a flow passage, the flow passage including a suction port that is open at the distal end surface.
This boring device according to one embodiment is characterized by comprising: a blade tip; a drive device for rotationally driving the blade tip; a supply flow path for supplying cooling liquid to the blade tip; and a tube pump for feeding, under pressure, the cooling liquid in the supply flow path to the blade tip. The boring device is also characterized in that: the tube pump has a supply tube forming a portion of the supply flow path, and a first pressing mechanism for pressing the supply tube; and the pressing mechanism is driven by the drive device.
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
B23B 47/00 - Constructional features of components specially designed for boring or drilling machinesAccessories therefor
B23Q 11/10 - Arrangements for cooling or lubricating tools or work
B28D 7/02 - Accessories specially adapted for use with machines or devices of the other groups of this subclass for removing or laying dust, e.g. by spraying liquidsAccessories specially adapted for use with machines or devices of the other groups of this subclass for cooling work
F04C 5/00 - Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable
F16H 1/46 - Systems consisting of a plurality of gear trains, each with orbital gears
A core cutter includes: a cylindrical body; and a tipped bit that is disposed in a manner to protrude from a distal end of the body. The core cutter is configured to cut a workpiece with the bit when the body is rotated about a rotational axis that is an axis of the body. At a distal end of the body, a notch is formed adjacently to the bit at a position forward of the bit in a rotation direction of the body. A width of the notch in a circumferential direction of the body at the distal end of the body is less than or equal to 1.0 mm.
B23B 51/04 - Tools for drilling machines for trepanning
B23B 35/00 - Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machinesUse of auxiliary equipment in connection with such methods
A drilling device for forming an enlarged-diameter hole includes: a guide sleeve with a cylindrical body and a guide to be inserted into a bottomed hole; a slide body that slides in the cylindrical body; and a bit holder provided on the slide body swingably; and a diameter-enlarging bit with a cutting blade. The bit slides between a first position where the cutting blade is separated from a bottom of the bottomed hole and a second position where the cutting blade is closer to the bottom than that at the first position. The guide has: a guide piece that guides the cutting blade to a side part, of the bottomed hole, following an advance of the bit from the first position to the second position; and an opening which allows passage of the bit removed from the bit holder where the bit is at the first position.
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
This enlarged-diameter hole section cutting device (10) is for cutting an enlarged-diameter hole section in a hole formed in a workpiece, the enlarged-diameter hole section cutting device (10) being provided with: a rod-like member (40) having a shaft section (41) and a guide body (42) which is provided with a tip surface (44) on the reverse side from the shaft section (41) and an inclination surface (45) inclined from the shaft section (41) side toward the tip surface (44) side in a direction away from the center axis of the shaft section (41); and a cutter blade (30) having a cutting section (32) which is provided with a cutting edge section (35) on the tip thereof and can slide along the inclination surface (45), wherein the rod-like member (40) further has a suction passage (80) including a flow path (81) having a suction port (81a) open in the tip surface (44).
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
B28D 7/02 - Accessories specially adapted for use with machines or devices of the other groups of this subclass for removing or laying dust, e.g. by spraying liquidsAccessories specially adapted for use with machines or devices of the other groups of this subclass for cooling work
E21B 10/32 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
This core cutter comprises a cylindrical middle part and a chip-shaped blade body that is disposed so as to protrude from the leading end of the middle part. The core cutter is configured so that the blade body cuts an object to be cut, as a result of the middle part rotating, with the axis of rotation being the axis of the middle part. The core cutter is characterized in that: forward from the blade body in the rotation direction of the middle part, a notch is formed in the leading end of the middle part so as to be adjacent to the blade body; and the width of the notch, along the circumferential direction of the leading end of the middle part, is no more than 1.0mm.
B23B 51/04 - Tools for drilling machines for trepanning
B23B 35/00 - Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machinesUse of auxiliary equipment in connection with such methods
B23B 45/14 - Means for holding or guiding the drilling device or for securing it to the workThrust stands
This drilling device for forming an enlarged-diameter hole is provided with: a guide sleeve that is provided with a cylindrical body and a guide to be inserted into a bottomed hole; a slide body that moves back and forth in the cylindrical body; a bit holder that is provided to the slide body so as to be oscillatable; and a diameter-expanding bit that is detachably fitted to the bit holder and provided with a cutting blade. The diameter-expanding bit moves back and forth between a first position where the cutting blade is separated from the bottom of the bottomed hole and a second position where the cutting blade is closer to the bottom of the bottomed hole than that at the first position. The guide has: a guide piece that guides the cutting blade to the side surface part, of the bottomed hole, corresponding to the enlarged-diameter hole following the advance of the diameter-expanding bit from the first position to the second position; and an opening that is formed with a size allowing passage of the diameter-expanding bit removed from the bit holder in a state where the diameter-expanding bit is in the first position.
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
B23B 41/00 - Boring or drilling machines or devices specially adapted for particular workAccessories specially adapted therefor
15.
Hole drilling device for forming expanded-diameter hole portion
A hole drilling device for forming an expanded-diameter hole portion at an inner bottom part of a mounting hole includes: a shaft including a contact surface and a tapered surface, and a cutter including a stopper provided on a side surface of the cutter, the stopper coming into contact with a surface of a drilling object. The cutter is movable between a first position and a second position. When the cutter is in the first position, the contact surface is in contact with the inner bottom part of the mounting hole, and the stopper is away from the surface of the drilling object. When the cutter is in the second position, the cutter has been pushed in forward from the first position, the cutting bit has protruded laterally from the tapered surface, and the stopper is in contact with the surface of the drilling object.
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
B23B 41/00 - Boring or drilling machines or devices specially adapted for particular workAccessories specially adapted therefor
E21B 10/32 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
E21B 7/28 - Enlarging drilled holes, e.g. by counterboring
E21B 10/62 - Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
E02D 5/34 - Concrete or concrete-like piles cast in position
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
Metal materials for building or construction; metal
hardware; anchor plates; metal base for anchor bolts; metal
hardware for anchoring; anchor driving rods; drilling
screws. Drill bits; drill bits being parts of machines; drill bits
for rock drilling; drill bits for drilling tiles; drill bits
for drilling concrete; drill bits for drilling mortar; drill
bits for drilling roof tiles; drill bits for construction
purposes; drill bits for woodworking; core drilling bits for
metalworking; core drilling bits; core drilling bits for
drilling synthetic resins; core drilling bits for mortar
working; core drilling bits for tile working; core drilling
bits for concrete working; core drilling bits for drilling
fiber-reinforced plastic; core drilling bits for
woodworking; metalworking machines, metalworking tools and
their parts and fittings; mining machines, apparatus and
their parts and fittings; lumbering, woodworking, or veneer
or plywood making machines, apparatus and their parts and
fittings; stone working machines, apparatus and their parts
and fittings; construction machines, apparatus and their
parts and fittings.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
Metal materials for building or construction; metal
hardware; anchor plates; metal base for anchor bolts; metal
hardware for anchoring; anchor driving rods; drilling
screws. Drill bits; drill bits being parts of machines; drill bits
for rock drilling; drill bits for drilling tiles; drill bits
for drilling concrete; drill bits for drilling mortar; drill
bits for drilling roof tiles; drill bits for construction
purposes; drill bits for woodworking; core drilling bits for
metalworking; core drilling bits; core drilling bits for
drilling synthetic resins; core drilling bits for mortar
working; core drilling bits for tile working; core drilling
bits for concrete working; core drilling bits for drilling
fiber-reinforced plastic; core drilling bits for
woodworking; metalworking machines, metalworking tools and
their parts and fittings; mining machines, apparatus and
their parts and fittings; lumbering, woodworking, or veneer
or plywood making machines, apparatus and their parts and
fittings; stone working machines, apparatus and their parts
and fittings; construction machines, apparatus and their
parts and fittings.
An anchor bolt inserted in a mounting hole includes: a shaft including an expanded diameter portion formed on its distal end, the expanded diameter portion having a tapered outer peripheral surface; a sleeve, into which the shaft is inserted from the proximal end side of the shaft, such that the sleeve covers an outer peripheral surface of the shaft, the sleeve including an expandable portion, which is configured to bend outwardly along the expanded diameter portion when pushed from an insertion complete state of the shaft; and a fitting piece connecting the shaft and the sleeve. A first recessed groove is formed in a peripheral surface of the sleeve. A ring, which contacts an inner peripheral wall of the mounting hole, is fitted in the first recessed groove.
F16B 13/06 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
F16B 13/08 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate gripping parts moved into their final position in relation to the body of the device without further manual operation
Provided is a core drill capable of reducing powder dust that scatters outward during drilling work, even on a drilling spot having, at a location immediately near thereto, a wall or the like vertical to the surface to be drilled. An exemplary core drill according to the present invention is provided with: a shaft part (1) including a shank; a blade body part (2) including a cylindrical section (21) fixed to the front portion of the shaft part (1) and including a cutting blade (22) disposed at the leading edge of the cylindrical section; and a dust suction adapter (4) including a fitting part (4a) that is penetrated by the shaft part (1) and that is rotatably attached relatively to the shaft part (1), and including a suction port (4b) which is joined to the fitting part and which is connected to a suction hose, wherein a dust suction passage (15) is provided inside the shaft part (1), a discharge port (16) which is connected with the dust suction passage (15) is provided on a side surface of the shaft part (1), and the dust suction adapter (4) is configured in such a way that the suction port (4b) and the discharge port (16) of the shaft part (1) are always connected in a state where the shaft part (1) is relatively rotating with respect to the fitting part (4a).
B23B 51/04 - Tools for drilling machines for trepanning
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B27C 3/08 - Operator-supported drilling machines or devices
B27G 3/00 - Arrangements for removing bark-zones, chips, waste, or dust, specially designed for use in connection with wood-working machine or in wood-working plants
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
A dust suction drill includes: a drill tip with cutting edge portions; a shaft joined to the drill tip and configured to rotate about an axis; and a dust suction passage that is generated when the cutting edge portions rotate, the dust suction passage being formed inside the shaft. The cutting edge portions are provided on a distal end surface of the drill tip and spaced apart from each other in a circumferential direction. Cutting edges, each of which is formed by a joint ridge between a rake face and a relief face of a corresponding one of the cutting edge portions, are arranged radially, and at a center of the drill tip, form a chisel point, which is a pointed end. A dust suction hole, which communicates with the dust suction passage, is formed in the rake face or the relief face closely to the chisel point.
B23B 51/06 - Drills with lubricating or cooling equipment
B28D 7/02 - Accessories specially adapted for use with machines or devices of the other groups of this subclass for removing or laying dust, e.g. by spraying liquidsAccessories specially adapted for use with machines or devices of the other groups of this subclass for cooling work
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
A boring device for forming an increased-diameter section at the bottom of a mounting hole comprises: a shaft provided with a contact surface which is provided at the front end thereof and which comes into contact with the bottom of the mounting hole, the shaft being also provided with a tapered surface which is provided on the side surface of the front end of the shaft and which has a diameter increasing toward the contact surface; and a cutter provided with a stopper which is provided on the side surface thereof and which comes into contact with the surface of an object being bored, the cutter being also provided with a cutting edge formed at the front end thereof, the cutter being fitted in the shaft so as to be slidable forward and backward, the cutter being configured such that, when the cutter slides forward, the cutting edge comes into contact with the tapered surface and protrudes laterally relative to the tapered surface. The cutter is provided movable between a first position where, while the contact surface is in contact with the bottom of the mounting hole, the stopper is located at a distance from the surface of the object being bored, and a second position to which the cutter is moved by being pushed forward from the first position, causing the cutting edge to protrude laterally relative to the tapered surface and the stopper to come into contact with the surface of the object being bored.
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
B23B 41/00 - Boring or drilling machines or devices specially adapted for particular workAccessories specially adapted therefor
E21B 10/32 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
A drill bit includes a pointed head and a bit shaft. A dust suction passage is formed in the bit shaft. A hole with an opening is formed in the pointed head or in a portion of the bit shaft, the portion being near a distal end of the bit shaft. The bit shaft includes a first portion, the first portion including a core and a rib. The core extends in an axial direction, and is thinner than the pointed head. The rib protrudes radially outward from a side surface of the core, and extends over an entire length of the first portion. The dust suction passage extends through the core in the axial direction.
B25D 17/20 - Devices for cleaning or cooling tool or work
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
B28D 7/02 - Accessories specially adapted for use with machines or devices of the other groups of this subclass for removing or laying dust, e.g. by spraying liquidsAccessories specially adapted for use with machines or devices of the other groups of this subclass for cooling work
A dust suction drill 1 is provided with: a drill tip 2 having a plurality of cutting edge sections 20 formed thereon; and a shaft 3 joined to the drill tip 2 and rotating about the axis, the shaft 3 having formed therein a dust suction passage 30 which sucks in dust occurring when the plurality of cutting edge sections 20 rotate. The plurality of cutting edge sections 20 are provided on the front end surface of the drill tip 2 so as to be circumferentially spaced from each other. A plurality of cutting edges 21 which are each formed by the ridge line where the rake face 22 and the flank face 23 of each of the plurality of cutting edge sections 20 join are radially arranged to form an acute chisel point P at the center of the drill tip 2, and a dust suction hole 24 in communication with the dust suction passage 30 is open to the rake face 22 or the flank face 23 at a position close to the chisel point P.
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
B28D 7/02 - Accessories specially adapted for use with machines or devices of the other groups of this subclass for removing or laying dust, e.g. by spraying liquidsAccessories specially adapted for use with machines or devices of the other groups of this subclass for cooling work
24.
Hole-drilling device for drilling hole with expanded diameter hole portion
A device for drilling a hole with an expanded diameter includes: a body, a shank; a sleeve; a compression spring; a drill bit body; an expanded diameter hole portion forming member attached to a side surface of the drill bit body and configured such that a cutting bit protrudes laterally from the drill bit body when the expanded diameter hole portion forming member moves forward on the side surface; a compression spring, which urges the expanded diameter hole portion forming member rearward relative to the drill bit body; and a cam. The expanded diameter hole portion forming member is configured to move forward on the side surface of the drill bit body owing to rotation of the cam when the body moves forward relative to the sleeve.
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
Core drilling bits for metalworking; core drilling bits for
woodworking; core drilling bits for concrete working; core
drilling bits for mortar working; core drilling bits for
tile working; core drilling bits for drilling synthetic
resins; core drilling bits for drilling fiber-reinforced
plastic; core drilling bits; drill bits [machine tools];
drill bits for metalworking; drill bits for drilling
concrete; drill bits for drilling mortar; drill bits for
drilling tiles; drill bits for drilling roof tiles; drill
bits for construction purposes; drill bits for rock
drilling; drill bits for woodworking; drill bits for mining;
metalworking machines, metalworking tools and their parts
and fittings; construction machines, apparatus and their
parts and fittings; stone working machines, apparatus and
their parts and fittings; lumbering, woodworking, or veneer
or plywood making machines, apparatus and their parts and
fittings.
A drill bit comprising a pointed end and a bit shaft. A dust suction passage is formed in the bit shaft. A hole, which has an opening in the pointed end or in an area near the front end of the bit shaft, is formed. The bit shaft has a first section that has a core and ribs. The core extends in the axial direction and is thinner than the pointed end. The ribs extend outward in the radial direction from the side surface of the core and extend over the entire length of the first section. The dust suction passage bores through the core in the axial direction.
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
27.
DEVICE FOR DRILLING HOLE WITH EXTENDED-DIAMETER HOLE PORTION
Provided is a device for drilling a hole with an extended-diameter hole portion, the device achieving a simplified structure. An example of this device for drilling a hole with an extended-diameter hole portion is provided with: a main body (1) which has a shank; a sleeve (3) which is mounted to the main body to be movable back and forth; a compression spring (6) which biases the sleeve forward with respect to the main body; a drill blade body (4) which has a base end inserted into a closed end insertion hole (11) of the main body and is mounted to the sleeve to be movable back and forth; an extended-diameter hole portion cutting member (5) which is attached onto a side surface of the drill blade body and has a cutting blade (5a) that protrudes sideward from the drill blade body when moving forward on the side surface; a compression spring (7) which biases the extended-diameter hole portion cutting member backward with respect to the drill blade body; and a cam (8) which is rotatably supported by the main body and has both ends that are in contact with the inner wall of the sleeve and the extended-diameter hole portion cutting member, and is configured such that the extended-diameter hole portion cutting member moves forward on the side surface of the drill blade body by the rotation of the cam (8) when the main body moves forward relatively to the sleeve.
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
The purpose of the present invention is to provide a rebar drill capable of preventing the decreased precision in drill hole straightness in drilling work particularly in reinforced concrete. The rebar drill (10) is provided with a cylindrical base (30) and multiple cutting teeth (40) formed on the leading end of the base (30) in the axial direction. The base (30) comprises a cylindrical body section (30a) and a cylindrical head section (30b) located on the leading end-side of the body section (30a). The cutting teeth (40) are formed on the leading end of the head section (30b) in the axial direction. The head section (30b) and the cutting teeth (40) are both made of a superhard alloy and the head section (30b) and the cutting teeth (40) are integrally formed. The body section (30a) is obtained from a different material from the head section (30b) and the cutting teeth (40) and the body section (30a) and the head section (40) are bonded.
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
B23B 51/04 - Tools for drilling machines for trepanning
Metalworking machines, metalworking tools and their parts
and fittings; construction machines, apparatus and their
parts and fittings; stone working machines, apparatus and
their parts and fittings; tile working machines, apparatus
and their parts and fittings; concrete working machines,
apparatus and their parts and fittings; lumbering,
woodworking, or veneer or plywood making machines.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
Metal materials for building or construction; metal
hardware. Metalworking machines, metalworking tools and their parts
and fittings; construction machines, apparatus and their
parts and fittings; loading-unloading machines, apparatus
and their parts and fittings; tile and stone working
machines and apparatus; lumbering, woodworking, or veneer or
plywood making machines, apparatus and their parts and
fittings.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
Metal materials for building or construction; metal
hardware. Metalworking machines, metalworking tools and their parts
and fittings; construction machines, apparatus and their
parts and fittings; loading-unloading machines, apparatus
and their parts and fittings; tile and stone working
machines and apparatus; lumbering, woodworking, or veneer or
plywood making machines, apparatus and their parts and
fittings.
32.
Coolant supply device and electric drill unit provided with coolant supply device
A coolant supply device attached to an electric drilling tool is configured to supply a coolant to a drilling portion at a distal end of a drill. The coolant supply device includes: a first flange member and a second flange member provided axially on a rotating shaft, the rotating shaft sharing a same axis with the drill, the first flange member being positioned at the drill side, the second flange member being positioned such that the second flange member is more distant from the drill than the first flange member; space formed between the flange members, into which a coolant is injected; a coolant supply passage formed between the first flange member and the drill and guiding the coolant in the space to the drill; and a coolant push-out mechanism configured to push the coolant out of the space toward the coolant supply passage.
B23B 51/06 - Drills with lubricating or cooling equipment
B28D 7/02 - Accessories specially adapted for use with machines or devices of the other groups of this subclass for removing or laying dust, e.g. by spraying liquidsAccessories specially adapted for use with machines or devices of the other groups of this subclass for cooling work
B28D 1/04 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by sawing with circular saw blades or saw discs
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
B23B 45/00 - Hand-held or like portable drilling machines, e.g. drill gunsEquipment therefor
[ Metalworking machines, namely, drilling machines for metalworking, bending machines, broaching machines, cutting machines, grinding machines, hydraulic presses, machining centers, perforating machines, planning machines, punching presses, shearing machines, tubing mills, metalworking machines tools and their replacement parts; ] construction machines, namely, drills for construction industry and their replacement parts; stone working machines and their replacement parts; tile working machines, namely, drilling machines for tile working [, power tools, namely, tile saws; tile removal and cutting machines and their replacement parts; concrete working machines, namely, drilling machines for concrete working, concrete construction machines, concrete mixers, concrete paving machines and their replacement parts; lumbering machines and woodworking machines, namely, lumbering drills, drilling machines for woodworking, lumbering band saws, circular saws, sanding machines, saw-tooth setting machines, and veneer manufacturing or plywood making machines, namely, drilling machines for veneer manufacturing, drilling machines for plywood making, plywood clipping machines, plywood drilling machines, plywood finishing machines, plywood gluing machines, plywood jointing machines, plywood presses ]
The object of the invention is to provide a hard tip where the nose side has wear resistance and the bonding side has toughness. The chemical composition of sintered hard alloy constituting the hard tip is such that a compounding ratio of WC to Co is substantially the same from the nose side to the bonding side, and a first bonding metal or a second bonding metal has a gradient chemical composition wherein the content of the first bonding metal or the second bonding metal is increased from the nose side to the bonding side, the first bonding metal does not form the eutectic texture with WC, and the second bonding metal has the eutectic temperature with WC over the eutectic temperature of WC—Co sintered hard alloy and the melting point over the liquid phase sintering temperature of WC—Co sintered hard alloy.
B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
B22F 7/02 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
Metal materials for building or construction, namely, anchors and anchor bolts of metal for building or construction; metal hardware, namely, anchor bolts, nuts and washers Metalworking machines, namely, drilling machines; metalworking machine tools and their parts and fittings, namely, metalworking machine setting tools, primary hole bits for power drills and power tool accessories in the nature of perpendicularly cutting guides; construction machines, namely, concrete construction machines; apparatus, namely, drilling machines and parts therefor; drilling machines and their parts [ and fittings ], namely, undercutter drill bits, setting tools, perpendicular drilling guides, primary hole bits, undercut confirmation tools [ ; loading and unloading machines; tile removal and cutting machines; stone working machines; lumbering, woodworking, or veneer or plywood making machines, namely, metalworking machine tools in the nature of anchor bolt setting machine tools ]
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
Metal materials for building or construction, namely, anchors and anchor bolts of metal for building or construction; metal hardware, namely, anchor bolts, nuts and washers Metalworking machines, namely, drilling machines; metalworking machine tools and their parts and fittings, namely, metalworking machine setting tools, primary hole bits for power drills and power tool accessories in the nature of perpendicularly cutting guides; construction machines, namely, concrete construction machines; apparatus, namely, drilling machines and parts therefor; drilling machines and their parts, namely, undercutter drill bits, setting tools, perpendicular drilling guides, primary hole bits, undercut confirmation tools [ ; loading and unloading machines; tile removal and cutting machines; stone working machines; lumbering, woodworking, or veneer or plywood making machines, namely, metalworking machine tools in the nature of anchor bolt setting machine tools ]
B23D 1/14 - Planing or slotting machines cutting by relative movement of the tool and workpiece in a horizontal straight line only by movement of the tool with means for adjusting the tool-guide vertically with the tool supported on both sides of the bed
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
E21B 10/60 - Drill bits characterised by conduits or nozzles for drilling fluids
Metal working machines and tools, including cemented carbide
cutting tips, punching machines, saws (machines), grinding
machines, cutters (machines), lathes (machine tools),
milling machines, metal borers, drilling machines, pneumatic
drills (hand-held), pneumatic hammers (hand-held), hand-held
power operated drills, hand-held power operated hammers,
hand-held power operated screwdrivers, cemented carbide
(hard metal cutting) tools, diamond-pointed metal-cutting
tools; construction machines and apparatus, including drills
for concrete; lumbering, woodworking, or veneer or plywood
making machines and apparatus, including saws (machines),
lathes (machine tools), milling machines, drilling machines,
cutters (machines); tile and stone working machines and
apparatus, including drills for tiles and stones; parts and
fittings for all the aforesaid goods, including saw blades,
hole saws, drill bits, drill chucks, drill heads, hammer
bits, shanks, adapters for attaching a cutting attachment to
a shank of a power operated cutting tool.
39.
COOLANT SUPPLY DEVICE AND ELECTRIC DRILL UNIT PROVIDED WITH COOLANT SUPPLY DEVICE
The present invention relates to a coolant supply device (A) attached to an electric drill device to supply coolant to a piercing portion at a tip end of the drill (10) at the time of piercing. The coolant supply device comprises a first flange member (3) and a second flange member (4) on a rotation shaft (1) provided coaxially with the drill so that the first flange member (3) is provided along the shaft and located on the drill side and the second flange member (4) is provided along the shaft and located farther from the drill than the first flange member, a space (S) formed between the both flange members and to which the coolant is introduced, a coolant supply passage (P) formed between the first flange member and the drill to guide the coolant in the space to the drill, and a coolant extrusion mechanism to extrude the coolant in the space toward the coolant supply passage.
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
B23B 51/06 - Drills with lubricating or cooling equipment
B28D 7/02 - Accessories specially adapted for use with machines or devices of the other groups of this subclass for removing or laying dust, e.g. by spraying liquidsAccessories specially adapted for use with machines or devices of the other groups of this subclass for cooling work
[ Metal working machines and tools, namely, tips for cemented carbide cutting tools, punching presses, power-operated saws, grinding machines, milling cutters, lathes, milling machines, metal boring machines, drilling machines, pneumatic drills, pneumatic hammers, hand-held power operated drills, hand-held power operated hammers, hand-held power operated screwdrivers, cemented carbide cutting tools, and diamond-pointed metal-cutting tools; ] construction machines and apparatus, namely, drills for concrete; [ lumbering, woodworking, or veneer or plywood making machines and apparatus, namely, power-operated saws, lathes, milling machines, drilling machines, and milling cutters; tile and stone working machines and tools, namely, power operated drills, power operated hammers, power operated stone and tile cutters, and power operated stone and tile grinders; ] parts and fittings for [ all the aforesaid goods, namely, ] * drills for concrete, power operated drills, power operated hammers, power operated stone and tile cutters, and power operated stone and tile grinders, namely, * [ power saw blades, power hole saw blades, ] power drill bits, chucks for power drills, drills heads for power drills, hammer bits for power operated hammers, and shanks for cutting machines
(1) Metal working machines and tools, namely, diamond-pointed metal-cutting tools; construction machines and apparatus, namely, drills for concrete; tile and stone working machines and apparatus, namely, drills for tiles and stones; parts and fittings for all the aforesaid goods, including drill bits, drill chucks and shanks.
Disclosed is a drill bit which maintains dust attraction performance and has increased rigidity at a connection portion between a bit tip portion and a bit shaft portion; wherein the drill bit (1) comprises the bit tip portion (3) arranged with at least three cutting blade portions on the tip end in the peripheral direction at intervals so that a connecting ridge line (L1) between a rake face (3s) and a relief face (3e) of each cutting blade portion (3c) defines a cutting blade, and a bit shaft portion (2) welded on a base end face of the bit tip portion (3) so as to rotate together; and wherein the bit shaft portion (2) is provided with a dust attraction passage (4) extending in the longitudinal direction until the tip end portion of the bit shaft portion, the bit shaft portion (2) is provided at its tip end portion with a dust attraction auxiliary passage (6) which extends from the dust attraction passage (4) to be perpendicular or substantially perpendicular to the dust attraction passage (4) and opens so that an outer diameter end (6t) faces a peripheral surface (1F) of the bit shaft portion (2), and a base end portion (3b) of the bit tip portion (3) is integrally attached to the tip end face of the bit shaft portion (2).
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
43.
ROTATION TOOL INSTALLATION AND REMOVAL DEVICE AND SAID ROTATION TOOL
Provided is a rotation tool or the like such that even if high rotational torque acts, plastic deformation does not tend to occur. A rotation tool (B) is configured in such a way that the tip section is provided with a blade section (14) wherein an edge is disposed in such a way as to face in the direction of the tip section; that the base end section is provided with a shank section (11) which is mounted in a mounting hole (1) in an arbor (A); that the shank section (11) is provided with an engagement recess (15) which engages with an anchoring member (2) that is disposed in the arbor in such a way as to be capable of protruding radially inward from the mounting hole (1), and a passage recess (18) capable of introducing the anchoring member into the engagement recess (15); and that thereby the rotation tool (B) is prevented from coming out of the arbor (A). A groove (16) with which a protrusion (3) formed in the mounting hole (1) in the arbor (A) engages in a surface contact manner, is formed in that area of the section (11) where the engagement recess (15) is not formed or where the same is formed.
B23B 31/107 - Retention by laterally-acting detents, e.g. pins, screws, wedgesRetention by loose elements, e.g. balls
B23Q 3/12 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine for securing to a spindle in general
a of a forward end portion protrudes forward and a radially outer portion of the forward end portion recedes rearward. A radially inner portion of a rearward end portion of the stepped portion is located forward and a radially outer portion of the rearward end portion is located rearward.
A core cutter includes a tubular body portion and a plurality of cutting blades arranged at a tip end of the body portion at predetermined intervals in a circumferential direction. At least one cutting blade serves as an inner cutting blade, and the remaining cutting blades serve as outer cutting blades. Through grooves penetrate a tip end of the body portion to open toward a tip end side of the core cutter. Each of the cutting blades having the same circumferential-direction size as the through groove. Gullets are configured to discharge the chips, each of the gullets formed by an outer peripheral surface. The cutting blades are welded to through grooves such that a radially inner end of an axial-direction tip end portion of each of the cutting blades coincides with or substantially coincides with a peripheral surface of an axial-direction tip end portion of the gullet.
Provided is a core drill capable of holding a cut-out core in the hollow portion of the drill body so as to prevent the cut-out core from falling down. The core drill (A) of the present invention comprises a cylindrical drill body (1), cutting teeth (2) arranged at the lower end of the drill body (1) and a shank (4)disposed at the upper end of the drill body (1) to be held by a drilling machine. The core drill is further provided with a yieldable pressing member (6) disposed in the hollow portion of the core drill (1) projecting radially inwardly and yieldable radially outwardly.
A shank attachment device attaches a core drill to a rotating portion of a drill device and includes an arbor and a shank. The arbor is detachably attachable to the rotating portion. The arbor and the shank are detachably attachable to each other. The shank is detachably attachable to the core drill. A stopper engages a groove of the shank to stop a movement of the shank in an axial direction away from the arbor. A rotational torque of the arbor can be transmitted to the shank by engaging a first engaging portion of the arbor with a first engaged portion of the shank. The shank contacts the arbor to stop the movement of the shank in the axial direction toward the arbor.
B23B 41/02 - Boring or drilling machines or devices specially adapted for particular workAccessories specially adapted therefor for boring deep holesTrepanning, e.g. of gun or rifle barrels
A core drill which, even if used with a rechargeable electric drill having low rotational torque, can bore a hole and which allows the drill to bore a hole with less electric power consumption. A core drill has a thin-walled core body (2). The outer peripheral surface of the tip of the core body (2) is formed in a tapered surface so that the core body is thin and sharp pointed on the tip side thereof. A recess (2B) for embedding a cutting tip therein is formed in the peripheral edge of an opening in the tip. That portion of the core body which is adjacent to that portion of the recess which is located at the front in the rotational direction is bent inward radially. The cutting tip (3) is provided with a step section which is, in a bottom view, formed such that an inner diameter portion (3a) of a front end (3A) projects forward in the rotational direction and that an outer diameter portion of the front end is receded rearward in the rotational direction. The cutting tip is also provided with a step section which is, in a bottom view, formed such that an inner diameter portion of a rear end is located forward in the rotational direction and that an outer diameter portion of the rear end is located rearward in the rotational direction. The cutting tip (3) is mounted to the core body (2) such that the front end of the recess in the rotational direction is located at the inner diameter portion (3a) of the front end of the cutting tip in the rotational direction and that a connecting surface for connecting to each other the outer diameter portion (3c) and an inner diameter portion (3d) of the rear end in the rotational direction is in contact with the outer peripheral surface of that portion of the core body which is adjacent to that portion of the recess which is located at the rear in the rotational direction.
A shank attachment structure which may supply coolant even if a drill without a center pin is attached. A shank can be attached to a shank attachment hole with a single motion. The outer diameter of the shank can be inserted into the shank attachment hole. A chamfered portion is formed around an edge of a base end, and an elongated concave portion is formed on a tip end. A coolant hole is formed on a base end of the shank attachment hole, and a valve body is disposed in the hole. A sealing member is disposed adjacent to the tip end side. A first sleeve is disposed such that a base of the shank moves the first sleeve, so that a base of the sleeve separates from the sealing member; and when the shank is not in contact with the tip, an outer peripheral surface of the first sleeve moves the engaging member radially outwardly.
Object: A drill dust collector is provided that is capable of drilling holes in an area ranging from a position near a corner to a position distant from the corner and that can be positioned with a side face in contact with an upright face such as a wall during drilling.
Means for Solving: The drill dust collector has (i) an opening 2C provided in the upper face of a box having an open lower face 1C, for receiving a drill inserted therein; (ii) a suction port 1U connected to the leading end of a suction hose 3 connected to an suction apparatus; and (iii) a contact member 1A of high flexibility formed so as to extend around the lower face of the box. The box has a lid member 3 composed of the opening 2C and its peripheral part, and a box body 1. The lid member 3 is placed so as to be rotatable relative to the box body 1 and the opening 2C is located at a position the center of which is shifted from the center of rotation of the lid member 3 relative to the box body 1.
A core cutter (C) of high drilling performance capable of discharging chips smoothly comprises a tubular body section (1), and a plurality of cutting edges (2) arranged at the tip thereof at a predetermined interval in the circumferential direction wherein at least one of the plurality of cutting edges (2) functions as an inner cutting edge (2A) and the remainder function as outer cutting edges (2A). The body section (1) is made thin but can sustain deformation resistant performance, and a through groove (3) penetrating in the thickness direction is provided to open on the tip side. The cutting edge (2) consisting of a chip independent from the body section (1) and having a dimension equal to the circumferential dimension of the through groove (3) is inserted into the through groove (3) and fixed in place. A garret (4) for discharging chips is formed in front of the cutting edge (2) in the rotational direction by the outer circumferential surface which approaches the inner circumferential surface toward the tip side. The cutting edge (2) is inserted into the through groove (3) and fixed by welding under such a state as the inside diameter end at the tip of the cutting edge (2) in the axial direction is aligned or substantially aligned with the circumferential surface at the tip of the garret (4) in the axial direction.
To provide a user-friendly core drill which, when forming a large-diameter cut hole by the core drill with respect to an object to be drilled, such as concrete, is able to easily form, for example, a chamfered portion or a countersunk portion with respect to an opening end portion of the cut hole. In a core drill comprising a base body including a shank and a drill core body including a drill cutting blade, a connection opening portion of the drill core body being attached to the base body, the connection opening portion of the drill core body is provided with a concave portion forming member including a large-diameter hole cutting blade, and the large-diameter hole cutting blade is provided outside the drill cutting blade in a radial direction of the connection opening portion.
A superhard tip which has wearing resistance on the edge side and has toughness on the bonding side. The superhard tip is made of a superhard alloy having a composition in which the proportion of WC to Co is substantially even from the edge side to the bonding side. The alloy has a gradient composition in which the content of a binder metal increases from the edge side to the bonding side, the binder metal being one which does not form a eutectic structure with WC or one which has a WC eutectic point higher than the eutectic point for the WC-Co superhard alloy and has a melting point not lower than the liquid-phase sintering temperature of the WC-Co superhard alloy.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
A shank installation device (A) capable of being used for a rechargeable electric impact drill in which axial force and rotational torque are applied in an impacting manner to an installation shaft. The shank installation device (A) has an engagement member (17) placed so as to be projectable into a shank installation hole (12A) open to the forward end of an arbor and also has a shank (2) placed on the base end of a drill (50) can be attached by one touch operation to the shank installation hole (12A). The shank installation device (A) has an installation shaft (11A) having a hexagonal cross-section and installed in a bit installation hole (60) formed in the forward end of a drill device (D). An engagement groove (21A) with which an engagement member (17) axially engages is circumferentially provided at a position located away from the base end side of the shank (2) to its forward end side. Mating teeth (20G) having a form projected or receded toward the base end of the shank (2) are provided at the forward end of the shank (2). Engagement teeth (12G) engaging with the mating teeth (20G) are formed at the forward end of the shank (2).
A shank attaching device that can transmit relatively large torque and that is considerably reduced in size. The shank attaching device is used to attach a core drill (50) to a rotating part of a drill device. The shank attaching device has an arbor (1) and a shank (2). The arbor (1) is detachable from the rotating part. The arbor (1) and the shank (2) are detachable from each other. The shank (2) is detachable from the core drill (50). Engagement of the locking member (17) of the arbor (1) with the locking groove (21A) of the shank (2) locks axial movement of the shank (2) away from the arbor (1). Engagement of the first engagement part (12G) of the arbor (1) with the first engaged part (20G) of the shank (2) enables rotational torque of the arbor (1) to be transmitted to the shank (2). The shank (2) abuts on the arbor (1) to lock axial movement of the shank (2) in the direction of approaching the arbor (1).
A shank attaching structure enabling supply of a coolant even if a drill without a center pin is attached and the quick attachment and detachment of a shank (30) into and from a shank attaching hole (2) in one operation. The outer diameter of the shank (30) is so set that the shank can be inserted into the shank attaching hole (2). A chamfered part (33) is formed along the base end periphery the shank, and recesses (31) are formed in the distal end of the shank in the form of a slot. A coolant supply hole (3) is formed in a body part (1B) of the base end of the shank attaching hole (2), a valve element (5) is disposed in the hole (3), and a seal member (4) is disposed nearer to the distal end than the valve element (5) is. A first sleeve (20) is so disposed in the shank attaching hole that the first sleeve can be separated from the seal member when the base end of the shank abuts on the distal end of the first sleeve and is moved until its base end abuts on the valve element and that its peripheral surface having an outer diameter approximately equal to the diameter of the shank attaching hole can bring about a state that a locking member (15) is apart from the inner peripheral surface of the shank attaching hole (2) toward the outer diameter when the shank does not abut on the distal end of the first sleeve.
B23Q 3/12 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine for securing to a spindle in general
B23Q 11/10 - Arrangements for cooling or lubricating tools or work
Cemented carbide cutting tips; metal working machines and
tools, namely, punching machines, saws (machines), grinding
machines, cutters (machines), lathes (machine tools),
milling machines, metal borers, drilling machines, pneumatic
drills (hand-held), pneumatic hammers (hand-held), hand-held
power operated drills, hand-held power operated hammers,
hand-held power operated screwdrivers, cemented carbide
(hard metal cutting) tools, diamond-pointed metal-cutting
tools; lumbering, woodworking, or veneer or plywood making
machines and apparatus, namely, saws (machines), lathes
(machine tools), milling machines, drilling machines,
cutters (machines); stone working machines and apparatus;
parts and accessories for aforesaid goods, namely saw
blades, hole saws, drill bits, drill chucks, drill heads,
hammer bits, shanks and adapters for attaching a cutting
attachment to the shank of a power operated cutting tool.
59.
DIAMETER EXPANDING GROOVE CUTTING DEVICE AND EXPANDING/CONTRACTING MECHANISM TOOL
A diameter expanding groove cutting device capable of concurrently cutting a plurality of annular diameter expanding grooves in the inner peripheral wall of an anchor rough hole for anchor reinforcement implanting and an expanding/contracting mechanism tool used for it. The diameter expanding groove cutting device (11) comprises a body (12) having a shank (12a) coupled with a motorized apparatus, an intermediate expanding/contracting mechanism tool (13) provided along the axial direction and kept non-rotatable with respect to the body (12), and a tip-end-side expanding/contracting mechanism tool (14), the cutting device being free to expand or contract, with respective cutting blades (8), ---- expanded and contracted in diameter by contracting and elongating actions, wherein, when rotation around the axis is imparted by the motorized apparatus, cutting blades (8),--- provided in respective expanding/contracting mechanism tools (13), (14) are used to be able to cut two annular diameter expanding grooves (3) in upper and lower two stages in the inner peripheral wall of the anchor rough hole (2) for anchor reinforcement implanting.
E21B 10/32 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
E21B 17/046 - CouplingsJoints between rod and bit, or between rod and rod with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
Cemented carbide cutting tips; metal working machines and
tools, namely, punching machines, saws (machines), grinding
machines, cutters (machines), lathes (machine tools),
milling machines, metal borers, drilling machines, pneumatic
drills (hand-held), pneumatic hammers (hand-held), hand-held
power operated drills, hand-held power operated hammers,
hand-held power operated screwdrivers, cemented carbide
(hard metal cutting) tools, diamond-pointed metal-cutting
tools; lumbering, woodworking, or veneer or plywood making
machines and apparatus, namely, saws (machines), lathes
(machine tools), milling machines, drilling machines,
cutters (machines); stone working machines and apparatus;
parts and accessories for aforesaid goods, namely saw
blades, hole saws, drill bits, drill chucks, drill heads,
hammer bits, shanks and adapters for attaching a cutting
attachment to a shank of a power operated cutting tool.
[ Tips for cemented carbide cutting tools; metal working machines and tools, namely, punching presses, power-operated saws, grinding machines, milling cutters, lathes, milling machines, metal boring machines, drilling machines, pneumatic drills, pneumatic hammers, hand-held power operated drills, hand-held power operated hammers, hand-held power operated screwdrivers, cemented carbide cutting tools, and diamond-pointed metal-cutting tools; lumbering, woodworking, or veneer or plywood making machines and apparatus, namely, power-operated saws, lathes, milling machines, drilling machines, and milling cutters; ] stone working machines and tools, namely, power operated drills, power operated hammers, [ power operated stone cutters and power operated stone grinders; ] parts and accessories for aforesaid goods, namely, [ power saw blades, power hole saw blades, ] power drill bits, [ chucks for power drills, drills heads for power drills, ] hammer bits for power operated hammers [, and shanks for cutting machines ]
A drill bit of the present invention is intended to stably perform drilling by lessening a great change in a drilling condition and to avoid reduction of a drilling efficiency even when large chip lumps are generated. In the drill bit, the main cutting blades have main cutting edges each structured such that an inner end thereof is located at the rotation center of the drill and an outer end thereof is located on an outer periphery of a rotation trace of the cutting blades, and the sub cutting blades have sub cutting edges each structured such that an inner end thereof is located to be spaced radially outward apart from the rotation center and an outer end thereof is located to be spaced radially inward apart from the outer periphery of the rotation trace toward the center of rotation.
E21B 10/43 - Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
Metal working machines; borers; punching presses; boring machines; drilling machines; adapters, hole saws and cutters for the aforesaid goods. Hand tools; saws; hole saws; saw blades; perforating tools; punchers.
Machines and machine tools, namely, cutting machines and cutting tools, drilling machines [ and drills, sawing machines and sawing tools ] ; and replacement parts therefor
(1) Machines and machine tools, namely cutting machines and cutting tools, drilling machines and drills, sawing machines and sawing tools and replacement parts therefor.
Machines and machine tools; cutting tools (electric); cutting machines; blades; knives; drilling machines; drills; sawing machines; saws (parts of machines); electric saws; saw blades (parts of machines); parts and fittings for all the aforesaid goods.
[ POWER OPERATED CUTTING MACHINES, NAMELY, DRILLING MACHINES; ] CUTTING ATTACHMENTS FOR USE WITH POWER-OPERATED CUTTING TOOLS, NAMELY, CORE DRILL BITS, HOLE SAW BITS, SHANKS AND ADAPTERS FOR ATTACHING A CUTTING ATTACHMENT TO A SHANK OF A POWER-OPERATED CUTTING TOOL
Power operated cutting machines, namely, drilling machines; cutting attachments for use with power operated cutting tools, namely, core drill bits, hole saw bits, and shanks and adapters for attaching a cutting attachment to a shank of a power operated cutting tool
(1) Machines and machine tools, namely drilling machines, cutting tools namely core drill bits, hole saw bits, shanks and adapters for attaching cutting tools to the shank of a power operated cutting tool and replacement parts therefor.
Machines and machine tools; cutting tools (electric); cutting machines; blades; knives; drilling machines; drills; sawing machines; saws (parts of machines); electric saws; saw blades (parts of machines); metal working machines and tools; lumbering, woodworking or veneer or plywood making machines and apparatus, including lumbering machines and apparatus; woodworking machines and apparatus; parts, accessories and fittings for all the aforesaid goods. Hand tools and implements; cutting tools; drills; knives; saws; saw blades; parts, accessories and fittings for all the aforesaid goods.
Machines and machine tools; cutting tools (electric); cutting machines; blades; knives; drilling machines; drills; sawing machines; saws (parts of machines); electric saws; saw blades (parts of machines); parts, accessories and fittings for all the aforesaid goods. Hand tools and implements; cutting tools; drills; knives; saws; saw blades; parts, accessories and fittings for all the aforesaid goods.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
Bolts of metal, metal anchor bolts for concrete, mortar, and drywall Power operated cutting machines; namely, drilling machines; cutting attachments for use with power operated cutting tools, namely core drill bits, hole saw bits, borer bits, solid drill bits, hollow drill bits, * bull points, * chisels, undercutters for use in expanding the bottom of a hole, drill chucks for power drills, shanks * and * adapters for attaching a cutting attachment to a shank of a power operated cutting tool; saw blades for * power * operated saws
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
bolts of metal, metal anchor bolts for concrete, mortar, and drywall power operated cutting machines, namely, drilling machines; cutting attachments for use with power operated cutting tools, namely, core drills bits, hole saw bits, borer bits, solid drill bits, hollow drill bits, bull points, chisels, undercutters for use in expanding the bottom of a hole, drill chucks for power drills, shanks and adapters for attaching a cutting attachment to a shank of a power operated cutting tool; saw blades for power operated saws
09 - Scientific and electric apparatus and instruments
Goods & Services
Machines and machine tools; cutting tools (electric); cutting tools; cutting machines; blades, knives; drilling machines; drills; saws; saws (machines); electric saws; saw blades; parts, accessories and fittings for all the aforesaid goods. Hand tools and implements; cutting tools; cutting tools (electric); drills; drilling machines; saws; saws (machines); saw blades; knives; parts, accessories and fittings for all the aforesaid goods. Cutting apparatus; parts, accessories and fittings for all the aforesaid goods.
Cutting tools; electric cutting tools; cutting machines; blades; knives; drilling machines; drills; saws; saws (machines); electric saws; saw blades; parts, accessories and fittings for all the aforesaid goods. Cutting tools; drills; knives; saws; saw blades; parts, accessories and fittings for all the aforesaid goods.
The object of the invention is to provide a hard tip where the nose side has wear resistance and the bonding side has toughness. The chemical composition of sintered hard alloy constituting the hard tip is such that a compounding ratio of WC to Co is substantially the same from the nose side to the bonding side, and a first bonding metal or a second bonding metal has a gradient chemical composition wherein the content of the first bonding metal or the second bonding metal is increased from the nose side to the bonding side, the first bonding metal does not form the eutectic texture with WC, and the second bonding metal has the eutectic temperature with WC over the
eutectic temperature of WC - Co sintered hard alloy and the melting point over the liquid phase sintering temperature of WC - Co sintered hard alloy.
B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
