A transport assist equipment assists transport of an object. The transport assist equipment includes a plurality of mecanum wheels, a plurality of motors, a first sensor, and a controller. The plurality of mecanum wheels are attached to the object. The plurality of motors are respectively attached to the plurality of mecanum wheels, and configured to respectively drive the plurality of mecanum wheels. The first sensor detects a force applied to the object. The controller is electrically connected to the first sensor and controls the plurality of motors. The controller drives the plurality of mecanum wheels via the motors so as to propel the object along a direction in which the object receives the force, based on a detection signal of the first sensor.
B62B 5/00 - Accessories or details specially adapted for hand carts
A47C 31/00 - Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
An assembly apparatus includes backup jigs, a press-fitting and caulking part, and an expansion part. The backup jigs is configured to back up arms of a yoke of the cross shaft universal joint from inside in an axial direction. The press-fitting and caulking part is configured to press-fit cup bearings from outside in the axial direction between bearing holes of the arms and a shaft portion of a cross shaft, and configured to caulk the cup bearings. The expansion part is configured to push a wedge body between the backup jigs and to expand the arms outward via the backup jigs. The press-fitting and caulking part is configured to press-fit the cup bearings and to caulk the cup bearings in a state in which the arms are expanded. The expansion part is configured to release an expansion of the arms after the press-fitting and caulking of the cup bearings.
F16D 3/38 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
F16D 3/40 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes
A space-saving centerless grinding machine having high operability is obtained by devising the configuration of component units around the basic configuration of the machine. A dressing means for performing a dressing process for a grinding wheel and a regulating wheel comprises a single dressing unit. The dressing unit is located at a lower position between the grinding wheel and the regulating wheel, and thus eliminates the need for right and left dresser spaces for grinding wheels that have most seriously affected the breadthwise dimension of a conventional centerless grinding machine, leading to space saving and a considerable reduction in the breadthwise dimension of the centerless grinding machine.
B24B 5/26 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfacesAccessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding peculiarly profiled surfaces, e.g. bulged
B24B 53/00 - Devices or means for dressing or conditioning abrasive surfaces
B24B 53/047 - Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels equipped with one or more diamonds
B24B 53/053 - Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels using a rotary dressing tool
B24B 5/22 - Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfacesAccessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding cylindrical surfaces, e.g. on bolts
B24B 49/18 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the presence of dressing tools
A workpiece conveyer apparatus of a machine tool corresponding to the unequal pitches among the individual processing stations, smaller in the number of operation steps, shorter in the traveling distance, shorter in the cycle time, capable of saving the space, capable of saving energy, and capable of enhancing the durability. Having a processing station block with five processing stations disposed straightly, slide rails extended and provided straightly along the processing stations, and four sliders movably provided on the slide rails, for loading or unloading workpieces on the processing station, distances of the processing stations are unequal pitches, the longitudinal dimension of the processing station block is set as small as possible, two outside sliders in the longitudinal direction of the processing station block are integrally coupled to each other, and two inside sliders are integrally coupled to each other.
B21B 39/00 - Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
B23Q 7/04 - Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers
5.
EXTENDABLE SPLINE SHAFT, VEHICLE STEERING PROVIDED WITH EXTENDABLE SPLINE SHAFT, AND METHOD FOR PRODUCING EXTENDABLE SPLINE SHAFT
Disclosed is an intermediate shaft (5) as an extendable spline shaft provided with an inner shaft (35) and a cylindrical outer shaft (36), said inner shaft being fitted in said cylindrical outer shaft so as to move in the axial direction (X1); an outer spline (38) provided on the outer periphery of the inner shaft (35); an inner spline (39) provided on the inner periphery of the outer shaft (36); a resin film (40) provided on the outer spline (38); and lubricant retention grooves (41) which are formed in the resin film (40) using a laser beam, and extend in the direction (D1) intersecting with the axial direction (X1).
F16D 3/06 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
a of the second tightening portion 14 so as to engage with the second tightening portion 14, and is formed so that at least a part of the end surface on the side facing the first tightening portion 13 is extended toward the first tightening portion 13 side and a gap S between them is a predetermined gap.
F16D 3/40 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes
7.
Grinding apparatus for a pin for use in power transmission chain and manufacture method of a pin for use in power transmission chain
a of the load pin 55 are ground simultaneously. Thus, time taken by a grinding process may be reduced as compared with a conventional method wherein one end face is ground at a time.
B24B 49/00 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
8.
Surface grinding machine, spindle device and surface grinding method
In through-feed grinding workpieces by grinding stones rotating around the axes of spindles, the spindles are tiltably held by elastic holding means around tilt axes substantially orthogonal to the direction of exit and entrance of the workpieces with respect to the grinding stones. When a grinding loads are imposed on the entrance sides of the grinding stones, the spindles are tilted by offset loads around the tilt axes against the force of urging means in such a manner that the axial displacement and the exit displacement of the grinding stone due to the offset load are substantially the same. The grinding stones are reset around the tilt axes by the elastic holding means immediately before the end of processing at which time the axial displacement is smaller. This makes it possible to reduce the number of defectively ground articles coming from the through-feed grinding and reduce the wear in the grinding stones.
In effecting two-sided surface grinding for surface-grinding the opposite surfaces of a workpiece simultaneously by a pair of oppositely disposed grinding wheels, infeed grinding is performed by oscillating the workpiece within the range where the surfaces to be ground of the workpiece do not protrude from the inner and outer peripheries of the grinding wheel surfaces of the grinding wheels, and then through-grinding is performed by feeding the workpiece to allow the surfaces to be ground to pass along the inner and outer peripheries of the grinding wheel surfaces. As an effect, worn wheel edges or the like can be prevented from being formed in the inner and outer peripheral edges, that grinding wheel surfaces can be maintained in proper shape for a prolonged time, that the grinding accuracy is better, and that dress interval can be prolonged, thus improving the life of grinding wheels.
B24B 1/00 - Processes of grinding or polishingUse of auxiliary equipment in connection with such processes
B24B 7/02 - Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfacesAccessories therefor involving a reciprocatingly-moved work-table
A yoke for a universal joint, where deformation of a set of a fastening section and a bolt is prevented, increasing durability of the bolt. The yoke (1) for a universal joint has an insertion section (11) formed in a tubular shape with an opening in the direction of axis of a rotating shaft and into which one end of the rotating shaft is inserted, a first fastening section (13) and a second fastening section (14) as a pair of fastening sections (12) extended from the insertion section (11) so as to face each other with an opening of the insertion section (11) held in between, and a set of a bolt (16) and a nut (17) for tightening the pair of fastening sections (12) from both sides. When the pair of fastening sections (12) is fastened together, the rotation shaft inserted in the insertion section (11) is held and fixed. The bolt (16) is inserted in a through-hole (13a) of the first fastening section (13). The nut (17) is fitted in an engageable manner in a through-hole (14a) of the second fastening section (14), and that portion of the end face of the nut (17) which faces the first fastening section (13) is formed extended toward the first fastening section (13) such that a gap (S) between the extended portion and the first fastening section (13) has a predetermined width.
F16D 3/38 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
A yoke for universal joint includes a base portion and a pair of opposed side walls and is connected to one end of a rotating shaft having two planes parallel to each other. One end of the rotating shaft is inserted between the opposed side walls such that both planes oppose the respective opposed side walls and the lower surface is abutted on the base portion. Then, a fastening portion of the opposed side walls in the upper portions thereof is fastened by a bolt such that the rotating shaft is interposed and fixed. On the inner surfaces of the opposed side walls, the concave portion is formed under the fastening portion. The concave portion is pushed against the outer peripheral square portion of the rotating shaft in both sides of the fastening portion in the axial direction of the rotating shaft.
A telescopable shaft (5) has an inner shaft (12) and a tubular shaft (13) that are fitted to each other so as to be relatively movable in an axis direction (X1) and to be able to transmit torque between each other. A row of rolling bodies (14) is interposed between corresponding axial grooves (15, 16) of the inner shaft (12) and the outer shaft (13). A retaining member (17) moving together with the rolling balls (14) while retaining the balls (14) has a facing section (33) facing an end surface (121) of the inner shaft (12). As the telescopable shaft (5) telescopes in and out, the facing section (33) comes into contact with the end surface (121) of the inner shaft (12), and this limits the movement of the rolling bodies (14) in the axial direction (X1).
F16D 3/06 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
B62D 1/20 - Connecting steering column to steering gear
F16C 3/035 - ShaftsAxles telescopic with built-in bearings
In a grinding machine comprising conductive grinding wheels, the invention presents a truing technique capable of truing grindstone surfaces of grinding wheels at high precision in a short time.
a).
B24B 49/00 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
B24B 51/00 - Arrangements for automatic control of a series of individual steps in grinding a workpiece
patents
