Abstract

A material for additive manufacturing includes a powder A and a powder B. The powder A includes an alloy or a pure metal. The powder B includes an alloy having a composition different from a composition of the powder A. The material for additive manufacturing has a temperature range in which a liquid phase ratio of the powder A is 30% by mass or less relative to a total mass of the powder A, and a liquid phase ratio of the powder B is 70% by mass or greater relative to a total mass of the powder B.

IPC Classes  ?

• B22F 7/00 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting
• B22F 1/05 - Metallic powder characterised by the size or surface area of the particles
• B22F 3/10 - Sintering only
• B22F 10/14 - Formation of a green body by jetting of binder onto a bed of metal powder
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing

Abstract

The present invention provides: an aluminum alloy molded body which exhibits excellent moldability, thermal stability and strength at normal temperature; and a method for producing same. More specifically, the present invention provides: an aluminum alloy laminated molded body which can suppress residual stress, which causes cracks at the time of molding, and which exhibits high hardness at room temperature and in a high temperature environment at 250°C; and a simple and efficient method for producing the aluminum alloy laminated molded body. This aluminum alloy molded body is formed using a lamination molding method, and is characterized by: comprising an aluminum alloy which contains more than 2.0 mass% and not more than 5.0 mass% of Fe, more than 2.0 mass% and not more than 5.0 mass% of Mn and more than 0 mass% and not more than 1.5 mass% of Zr, with the remainder comprising Al and unavoidable impurities; the total content of Fe and Mn being 4.0-7.0 mass%; and having a metallographic structure comprising a matrix phase (Al), an AlFeMn-based compound and an AlZr-based compound.

IPC Classes  ?

• C22C 21/00 - Alloys based on aluminium
• B22F 10/25 - Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
• B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
• B22F 10/34 - Process control of powder characteristics, e.g. density, oxidation or flowability
• B22F 10/64 - Treatment of workpieces or articles after build-up by thermal means

Abstract

In order to address an increase in size of a wind turbine and an increase in number of wind turbines installed, the present invention provides a support leg fixing structure for a vertical axis wind turbine which facilitates and strengthens the assembly of a support leg and a bearing part of a rotation shaft.　A vertical axis wind turbine is provided with: a rotation shaft 2 that rotates about an axis that is perpendicular to the direction in which wind is received; a power generation part 6 that is connected to the rotation shaft 2 via a bearing part 3; and a plurality of blades 10 that are connected to the rotation shaft 2 and that rotate about the vertical axis. The bearing part 3 has a cylindrical housing 3d that, along the lengthwise direction of the rotation shaft 2, holds a bearing 3c which rotatably supports the rotation shaft 2. A housing receiving member 40 comprising an aluminum extruded material is fixed to the outer peripheral surface of the housing 3d of the bearing part 3. A support leg receiving member 50 comprising an aluminum extruded material is fixed to the outer peripheral surface of the housing receiving member 40, along the circumferential direction of the rotation shaft 2. An end face of a support leg 5 is in contact with and fixed to an outer surface of the support leg receiving member 50.

IPC Classes  ?

• F03D 13/20 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors
• F03D 80/70 - Bearing or lubricating arrangements

Abstract

Provided is a blade fixing structure for a vertical axis wind turbine, which facilitates and secures the assembly of a rotary shaft and blades so as to accommodate an increase in the size and in the installation quantity of actual wind turbines.　A vertical axis wind turbine is equipped with a rotary shaft 2 that rotates about a vertical axis relative to the direction in which wind is received, a power generating unit 6 that is coupled to the rotary shaft 2 via a bearing portion 3, and a plurality of blades 10 that are coupled to the rotary shaft 2 and that rotate about the vertical axis. The vertical axis wind turbine, wherein: a bracket 20 comprising an aluminum extruded material is fixed to an outer circumferential surface of the rotary shaft 2 along the lengthwise direction of the rotary shaft 2; and a constituent member end portion of each of the blades 10 is fixed, in an abutting state, to an outer circumferential surface of the bracket 20.

IPC Classes  ?

• F03D 3/06 - Rotors
• F03D 13/20 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors

Abstract

Provided is a heatsink which is used for cooling thermal devices, such as semiconductors, and which is particularly suitable for cooling thermal devices such as semiconductors used in a compact module or the like.　This heatsink for cooling thermal devices is characterized: by including at least two cylindrical sections in which thermal devices are arranged; and in that heat dissipation fins are provided in outer peripheral parts of the cylindrical sections.　

IPC Classes  ?

• H01L 23/40 - Mountings or securing means for detachable cooling or heating arrangements
• H01L 23/427 - Cooling by change of state, e.g. use of heat pipes
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

The present invention provides a heat sink that has greater cooling effects and a simpler structure.　According to the present invention, a thermal device heat sink comprises a metal cylindrical member, a heat-radiating fin, and a metal hollow member or heat pipe that has an internal fluid passage. The thermal device heat sink is designed such that the heat-radiating fin is provided to an outer circumferential part of the metal cylindrical member, the metal hollow member or heat pipe is arranged inside the metal cylindrical member, and both an inner circumferential surface of the metal cylindrical member and an outer circumferential surface of the metal hollow member or heat pipe contact a thermal device.　

IPC Classes  ?

• H01L 23/427 - Cooling by change of state, e.g. use of heat pipes
• H01L 23/473 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing liquids
• F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes

Abstract

The present invention addresses the problem of providing a heat sink: which is used for cooling a thermal device formed from a semiconductor or the like; and which is suitable for cooling the thermal device formed from a semiconductor or the like and is used particularly for a compact module and the like.　The above problem is solved by a thermal device cooling heat sink characterized by having: a flat-shaped heat pipe, a thermal device provided on the heat pipe; and heat dissipation fins each provided on the heat pipe and at a position spaced apart from the thermal device.　

IPC Classes  ?

• H01L 23/427 - Cooling by change of state, e.g. use of heat pipes
• H01L 23/473 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing liquids
• F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes

Abstract

A die set capable of suppressing breakage or wrinkling of the workpiece during bending and a processing method using the die set. A die set used for bending a plate-like workpiece includes a lower die on which the workpiece is placed, and an upper die having a pressing surface formed to press the workpiece against the lower die. The lower die includes a lower movable part slidable in the same direction as a moving direction of the upper die, a reaction force generating member configured to elastically support the lower movable part from beneath, and receiving members located on both sides of the lower movable part. The pressing surface has an arc-shaped cross-section protruding toward the lower die and extends in a longitudinal direction of the workpiece. The maximum push-in position of the lower end portion of the pressing surface is deeper than a position lowered by a finished inner diameter dimension of the workpiece from an upper surface of the lower die.

IPC Classes  ?

• B21D 5/01 - Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
• B21D 37/10 - Die setsPillar guides

Abstract

This vertical axis wind turbine comprises a base section (2) having a power-generating unit, a rotating section (3) that rotates in relation to the base section (2) about a vertical axis, and a plurality of wind turbine blades (10 (main blades 12)) that are linked to the rotating section (3) via arms (20) and that rotate about the vertical axis. The arms (20) each have a movable arm (23) for suppressing over-rotation, the movable arm being capable of rotating about an axis of a rotation shaft (24) connecting the rotating section (3) and a wind turbine blade (10 (main blade 12)), and the movable arms (23) are each provided with an over-rotation-suppressing guide (30 (weight 32)) that tilts the movable arm (23) about the rotation axis via the action of centrifugal force generated during the rotation of the wind turbine and returns the movable arm (23) to the initial state when the rotation of the wind turbine is stopped.

IPC Classes  ?

• F03D 3/06 - Rotors
• F03D 7/06 - Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor

Abstract

Provided are a die and a processing method which uses the die, whereby breakage or wrinkling of a workpiece can be suppressed during bending thereof. A die for bending of a plate-shaped workpiece (100). The present invention comprises a lower die (20) on which the workpiece (100) is loaded, and an upper die (30) in which is formed a pressing surface (32) for pressing the workpiece (100) toward the lower die (20). The lower die (20) comprises a lower movable part (60) which is capable of sliding in the same direction as the movement direction of the upper die (30), a reaction force generating member (70) for elastically supporting the lower movable part (60) from below, and a receiving member (54) positioned on both side parts of the lower movable part (60). The pressing surface (32) has an arcuate cross-sectional shape that is convex toward the lower die (20), and extends along the longitudinal direction of the workpiece (100). The maximally pressed-in position of the lower end part of the pressing surface is at a greater depth than a position that is the inside diameter finished dimension of the workpiece lower than the upper surface of the lower die.

IPC Classes  ?

• B21D 5/01 - Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
• B21C 37/06 - Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided forManufacture of tubes of special shape of tubes or metal hosesCombined procedures for making tubes, e.g. for making multi-wall tubes
• B21C 37/08 - Making tubes with welded or soldered seams

Abstract

This underbody component (1) for an automobile comprises: a vehicle body-side connection part (2) connected to a vehicle body; a wheel-side connection part (3) connected to a wheel; and an arm part (4) for connecting the vehicle body-side connection part (2) and the wheel-side connection part (3). The arm part (4) has: a rib portion (11) which extends from the vehicle body-side connection part (2) to the wheel-side connection part (3); and a first web portion (22) and a second web portion (23) which are disposed so as to be separated from each other in the height direction of the rib portion (11) and which are each connected to the rib portion (11). The arm part (4) has a wall portion (27) for connecting at least a section of the first web portion (22) other than a section connected to the rib portion (11) and a section of the second web portion (23) other than a section connected to the rib portion (11).

IPC Classes  ?

• B60G 7/00 - Pivoted suspension armsAccessories thereof

Abstract

The objective of the present invention is to manufacture a product with a desired bent shape having high bending dimension accuracy, regardless of variability in an extruded profile.　This bending back method is characterized by including: a first bending back step of performing a first bending back process in which a workpiece (2) that has been curved more than a desired bending dimension (BF) is pressed by a first bending back amount (R1), and measuring a first bending dimension (B1) of the workpiece (2); a second bending back step of performing a second bending back process in which the workpiece (2) that was bent back in the first bending back step is pushed by a second bending back amount (R2), and measuring a second bending dimension (B2) of the workpiece (2); a final bending back amount calculating step of obtaining the gradient of a linear function of the bending back amount and the bending dimension, from the first bending back amount (R1), the first bending dimension (B1), the second bending back amount (R2), and the second bending dimension (B2), and calculating a final bending back amount (RF) corresponding to the desired bending dimension (BF), on the basis of the gradient; and a final bending back step of performing a final bending back process by pushing the workpiece (2) by the final bending back amount (RF).

IPC Classes  ?

• B21D 5/01 - Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
• B21D 7/00 - Bending rods, profiles, or tubes

Abstract

The objective of the present invention is to manufacture a sunroof rail having high dimensional accuracy and no cross-sectional deformation.　This method for manufacturing a sunroof rail, for manufacturing a sunroof rail by bending an extruded profile (10) made of aluminum alloy, is characterized by including: a profile preparation step of preparing the extruded profile (10), provided with recessed grooves (12a to 12g); a core insertion step of inserting cores (20a to 20g) into the recessed grooves (12a to 12g) of the extruded profile (10); a profile arrangement step of fixing a front end portion of the extruded profile (10) to a bending mold (3) facing a straight mold (2), while causing the extruded profile (10) to lie along the straight mold (2); a bending preparation step of sandwiching the straight mold (2) and a front portion of the bending mold (3) between a pair of rollers (5, 6); and a bending step of passing the extruded profile (10) forward between the pair of rollers (5, 6) together with the bending mold (3) and the straight mold (2).

IPC Classes  ?

• B21D 7/08 - Bending rods, profiles, or tubes by passing between rollers or through a curved die
• B21D 9/07 - Bending tubes using mandrels or the like co-operating with forming members with one or more swinging forming members engaging tube ends only

Abstract

A crash box is configured to absorb an impact caused by a collision of a vehicle. The crash box includes a front end surface configured to receive the impact, a rear end surface configured to be attached to the vehicle; and a first wall surface and a second wall surface both extending from the rear end surface to the front end surface. The first wall surface and the second wall surface face each other. A length of the second wall surface from the front end surface to the rear end surface is longer than a length of the first wall surface from the front end surface to the rear end surface.

IPC Classes  ?

• B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
• B60R 19/34 - Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type

Abstract

A die set for bending a metal plate workpiece includes a lower die for placing the workpiece, an upper die having a pressing surface which presses the workpiece toward the lower die by movement, a lower movable part provided in the lower die and being slidable in the same direction as the direction of the upper die movement, and a gas spring elastically supporting the lower movable part from below. The pressing surface of the upper die is moved, contacts with the upper surface of the workpiece and presses the workpiece toward the lower die. The lower movable part being elastically supported by the gas spring from below brings an opposing surface into contact with the lower surface of the workpiece and makes the upper die to be close to the lower die while applying force in the upward which is opposite direction of the upper die movement.

IPC Classes  ?

• B21D 5/02 - Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
• B21D 37/10 - Die setsPillar guides

Abstract

Provided are: a pellicle frame body for a flat panel display (FPD) having high dimensional accuracy and flatness, the pellicle frame body being capable of maintaining the rigidity required for a pellicle for a large flat panel display (FPD) even if the cross-sectional area of the frame is reduced, and enlarging the inside dimension of the frame body by reducing the cross-sectional area; and an efficient manufacturing method therefor. The present invention provides a pellicle frame body for a flat panel display (FPD), the pellicle frame body being characterized by being composed of an extruded material of an aluminum alloy powder sintered body comprising 20-40 mass% of Si, 0.2-1.2 mass% of Mg, 2 mass% or less of Cu, 2 mass% or less of Fe, 0.4 mass% or less of Cr, and the balance comprising Al and inevitable impurities.

IPC Classes  ?

• G03F 1/64 - Pellicles or pellicle assemblies, e.g. having membrane on support framePreparation thereof characterised by the frames, e.g. structure or material thereof

Abstract

This double floor structure has a plurality of floor panels, a joining member, and a beam member. The joining member has a support surface for placing an installation object thereon at a substantially same height as the top surfaces of the plurality of floor panels or at a position lower than the top surfaces of the plurality of floor panels, and a fixation hole for fixing the installation object is provided to the support surface. The beam member is at least partially disposed below the joining member and the joining member is mounted thereto. In a first direction toward the joining member from the floor panel that is closest to the joining member among the plurality of floor panels, at least at a position far from a part of the fixation hole as viewed from the floor panel, the beam member supports the joining member from below.

IPC Classes  ?

• E04F 15/024 - Sectional false floors, e.g. computer floors

Abstract

A mold (10) for bending a plate-shaped workpiece (100) is provided with: a lower mold (20) for placing the workpiece (100); an upper mold (30) on which a pressing surface (32) is formed for pressing the workpiece (100) by movement toward the lower mold (20); a lower movable part (60) which is provided in the lower mold (20) and is slidable in the same direction as the moving direction of the upper mold (30); and a gas spring (70) for elastically supporting the lower movable part (60) from below. In addition, the pressing surface (32) of the upper mold (30) is moved and comes into contact with the upper surface of the workpiece (100), thereby pressing the workpiece (100) toward the lower mold (20). The lower movable part (60), which is elastically supported from below by the gas spring (70), brings an opposing surface (62) into contact with the lower surface of the workpiece (100), and causes the upper mold (30) to be close to the lower mold (20) while applying force in the upward direction that is a direction opposite to the downward direction that is the direction of movement of the upper mold (30).

IPC Classes  ?

• B21D 5/02 - Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
• B21D 5/01 - Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments

Goods & Services

Composite metal matrix alloy materials based on aluminum for use in storage containers for the nuclear power industry; Aluminum alloys

Abstract

This beverage dispensing device has: a main passage that allows a pressurized beverage supplied from a beverage supply source to flow down therethrough; a sub-passage with a downstream end that is in communication with the main passage, said sub-passage allowing a different pressurized fluid supplied from a fluid supply source to flow down therethrough and mix with the beverage; an opening/closing valve for opening and closing the main passage and the sub-passage in a cooperative manner; and a spout that is in communication with the downstream end of the main passage, and allows the pressurized mixture of the fluid and the beverage to flow down therethrough so as to be dispensed to the outside.

IPC Classes  ?

• B67D 1/14 - Reducing valves or control taps
• A47J 31/40 - Beverage-making apparatus with dispensing means for adding a measured quantity of ingredients, e.g. coffee, water, sugar, cocoa, milk, tea
• G07F 13/06 - Coin-freed apparatus for controlling dispensing of fluids, semiliquids or granular material from reservoirs with selective dispensing of different fluids or materials or mixtures thereof

Abstract

A battery case provided with a safety valve (4) in which a breakage groove (45) is used, wherein in order to stabilize the operation pressure, a lid (2) of the battery case has formed thereon: a thin plate portion (30) obtained by thinning a plate part (3); and a first recessed part (40) comprising a curved part (44) in which the thin plate portion (30) is indented inward, with respect to the case, in a curved shape. The breakage groove (45) for the safety valve (4) is formed at the bottom part (440) of the curved part (44). A first connecting portion (46) and a second connecting portion (47) of the plate part (3), which connect to the curved part (44) on both sides flanking the curved part (44), are at positions protruding toward the outside of the case from the plate part (3).

IPC Classes  ?

• H01M 2/12 - Vent plugs or other mechanical arrangements for facilitating escape of gases
• H01M 2/04 - Lids or covers
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 10/058 - Construction or manufacture

Abstract

　An aluminum composite material is provided with a first metal sheet, a second metal sheet, and a parent material disposed between the first metal sheet and the second metal sheet and formed of aluminum powder. Gadolinium oxide particles are dispersed in the base material.

IPC Classes  ?

• B22F 7/04 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers with one or more layers not made from powder, e.g. made from solid metal
• B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
• B22F 3/18 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by using pressure rollers
• B22F 3/24 - After-treatment of workpieces or articles
• C22C 21/00 - Alloys based on aluminium
• C22C 32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
• G21F 1/08 - MetalsAlloysCermets, i.e. sintered mixtures of ceramics and metals

Abstract

The present invention addresses the problem of providing a bumper reinforcement capable of withstanding an offset collision. A bumper reinforcement (R) consisting of a hollow, shaped material is provided with: a rear wall (1) which faces the vehicle body; an upper wall (2) which extends forward from the upper part of the rear wall (1); a lower wall (3) which extends forward from the lower part of the rear wall (1); a front wall (4) which extends from the upper wall (2) to the lower wall (3); a partition wall (5) which is located between the rear wall (1) and the front wall (4) and which extends from the upper wall (2) to the lower wall (3); an upper support wall (6) and a lower support wall (7), which are located between the upper wall (2) and the lower wall (3) and which extend from the rear wall (1) to the partition wall (5); and an intermediate support wall (8) which is located between the upper wall (2) and the lower wall (3) and which extends from the front wall (4) to the partition wall (5). The intersection of the partition wall (5) and the upper support wall (6) is located above the intersection of the partition wall (5) and the intermediate support wall (8), and the intersection of the partition wall (5) and the lower support wall (7) is located below the intersection of the partition wall (5) and the intermediate support wall (8).

IPC Classes  ?

• B60R 19/04 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section

Abstract

　A cell case provided with a safety valve (4) in which a breakage groove (45) is used, wherein in order to stabilize the operation pressure, a lid (2) of the cell case has formed thereon: a thin plate portion (30) obtained by thinning a plate part (3); and a first recessed part (40) comprising a curved part (44) in which the thin plate portion (30) is indented inward, with respect to the case, in a curved shape. The breakage groove (45) for the safety valve (4) is formed at the bottom part (440) of the curved part (44). A first connecting portion (46) and a second connecting portion (47) of the plate part (3), which connect to the curved part (44) on both sides flanking the curved part (44), are at positions protruding toward the outside of the case from the plate part (3).

IPC Classes  ?

• H01M 2/12 - Vent plugs or other mechanical arrangements for facilitating escape of gases
• H01M 2/04 - Lids or covers

Abstract

Provided is a metal-based composite material which has a sufficient radiation absorption function, also has excellent strength, corrosion resistance, processability, impact resistance and heat conductivity, and is inexpensive. A metal-based composite material having such a double-clad structure that a core material is sandwiched between a pair of skin materials each composed of an aluminum plate in such a manner that the core material is closely adhered to the skin materials, wherein the core material comprises a matrix produced by consolidating an aluminum powder by applying a pressure and tungsten particles dispersed in the matrix, and wherein the tungsten particles are contained in the core material in an amount of 5 to 70 vol%. A method for producing a metal-based composite material, which comprises filling a mixed powder of an aluminum powder that constitutes a matrix and tungsten particles into an aluminum case and then extending the mixed powder by applying a pressure.

IPC Classes  ?

• B22F 7/04 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers with one or more layers not made from powder, e.g. made from solid metal
• B22F 3/18 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by using pressure rollers
• C22C 1/04 - Making non-ferrous alloys by powder metallurgy
• C22C 1/05 - Mixtures of metal powder with non-metallic powder
• C22C 21/00 - Alloys based on aluminium
• C22C 27/04 - Alloys based on tungsten or molybdenum
• C22C 32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
• C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
• C22F 1/18 - High-melting or refractory metals or alloys based thereon
• G21F 1/08 - MetalsAlloysCermets, i.e. sintered mixtures of ceramics and metals
• C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working

Abstract

The present invention addresses the problem of providing a manufacturing method for curved members capable of having fewer bending processes than the number of curved members to be manufactured. This manufacturing method for curved members comprises a shape material preparation step of preparing a shape material (S) formed by arranging a plurality of elongated product parts (S1, S1), which are the elements of the curved member, side by side in the transverse direction, a disposition step of fixing the shape material (S) to the front end of a bending form (2) while aligning the shape material (S) in a linear form (1), a bending preparation step of sandwiching the front end of the linear form (1) and the bending form (2) between a pair of rollers (4, 5), and a return step of moving the pair of rollers (4, 5) toward the front of the linear form (1).The plurality of curved elongated product parts (S1, S1)is separated during the return step.

IPC Classes  ?

• B21D 5/01 - Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
• B21D 7/025 - Bending rods, profiles, or tubes over a stationary forming memberBending rods, profiles, or tubes by use of a swinging forming member or abutment by a swinging forming member and pulling or pushing the ends of the work

Abstract

The purpose of the present invention is to provide a bumper reinforcement capable of slowing the degree of increase of a collision load subjected on a vehicle body in the initial stage of a collision. The present invention is a bumper reinforcement (R1) comprising a hollow material, characterized in comprising a rear wall (1) facing the vehicle body, a top wall (2) extending forward from the top part of the rear wall (1), a bottom wall (3) extending forward from the bottom part of the rear wall (1), a front wall (4) supported only on the top wall (2) and the bottom wall (3), a top reinforcing wall (5) extending from the middle of the rear wall (1) in the height direction up to the middle of the top wall (2) in the forward-backward direction, and a bottom reinforcing wall (6) extending from the middle of the rear wall (1) in the height direction up to the middle of the bottom wall (3) in the forward-backward direction; the front wall (4) being positioned in front of an imaginary line (P) passing through the foremost part of the top reinforcing wall (5) and the foremost part of the bottom reinforcing wall (6) when the bumper reinforcement is sectioned by an imaginary plane having the center axis of the hollow member as the normal.

IPC Classes  ?

• B60R 19/04 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section

Abstract

[Problem] To provide an extrusion die for forming a hollow, shaped material, the extrusion die being configured so that the extrusion die allows the extrusion, at high speed, even of a billet, so that the durability of a mandrel is increased, and so that a high-quality product is obtained by minimizing the displacement of the mandrel in the rotational direction. [Solution] An extrusion die (10) is configured so as to comprise: a male die (20) which forms the inner shape of a shaped material by extruding a billet (B) to the downstream side; and a female die (30) which forms the outer shape of the shaped material. The male die (20) is configured from a mandrel (22) and a holder (25) which holds the outer periphery of the mandrel (22). The mandrel (22) is formed from: a forming section (23) which corresponds to the inner shape of the shaped material; and a bridge section (24) which supports the forming section (23) and which has a front end outer peripheral surface which engages with the inner periphery of the holder (25). Engagement surfaces where the front end outer peripheral surface of the bridge section (24) and the inner periphery of the holder (25) engage with each other are formed as sloped surfaces configured so that the downstream side thereof in the extrusion direction is located closer to the center of the die. The extrusion die (10) also comprises a rotational displacement prevention mechanism which prevents the rotational displacement of the mandrel relative to the holder.

IPC Classes  ?

• B21C 25/02 - Dies

Abstract

[Problem] To provide an extrusion die for forming a hollow material in which extrusion can be performed at high speeds, spider breakage is prevented, and service life is increased, even when extruding a billet comprising a high-extrusion-force, high-strength alloy, and particular a 7000-series maximum strength aluminum alloy. [Solution] An extrusion die (10) is provided with a male die (20) through which a billet (B) is extruded from an upstream side to a downstream side and, the male die adapted for forming an inside shape of a hollow material; and a female die (30) for holding the male die (20) and forming an outside shape of the hollow material. The male die (20) is formed of a spider (22) and a holder (25) for holding the spider (22). The spider (22) is formed of a mandrel (23) and a plurality of bridge parts (24) for supporting the mandrel (23), and enabling a distal-end outer peripheral surface (24C) to engage with a bridge-holding surface (25C). The distal-end outer peripheral surface (24C) of each of the bridge parts (24) and the bridge-holding surface (25C) of the holder (25) are joined by shrink-fitting.

IPC Classes  ?

• B21C 25/02 - Dies
• B21C 23/08 - Making wire, rods or tubes
• B21C 25/04 - Mandrels

Abstract

The present invention addresses the problem of providing a lightweight bumper structure capable of absorbing the desired amount of collision energy and minimizing bearing power peaks. The present invention is a bumper structure provided with a bumper reinforcement (R) and a pair of right and left bumper stays (S, S) interposed between a side member (M) and the bumper reinforcement (R), wherein the invention is characterized in that each of the bumper stays comprises a hollow extrusion and, as viewed from above, is arranged so that the direction of extrusion of the hollow extrusion runs obliquely with respect to the direction of forward movement of the vehicle.

IPC Classes  ?

• B60R 19/24 - Arrangements for mounting bumpers on vehicles

Abstract

A double floor structure capable of being adapted to the conditions of construction and the needs of users at low cost. A double floor structure (K) provided with support legs (1) which are provided on a lower floor and rows of beams which form an upper floor. The support legs (1) are each provided with an upper member (14) which supports a beam from the lower side, an intermediate member (13) which supports the upper member (14) from the lower side, and a lower member (12) which supports the intermediate member (13) from the lower side. The upper member (14), the intermediate member (13), and the lower member (12) consist of metallic, extruded shape material and are disposed in such a manner that the direction of the extrusion is aligned with the top-bottom direction.

IPC Classes  ?

• E04B 9/00 - CeilingsConstruction of ceilings, e.g. false ceilingsCeiling construction with regard to insulation

Abstract

Even when extrusion-forming a billet comprising a high-extrusion-force, high-strength alloy—in particular, a high-strength aluminum alloy such as the so-called 7000 series—the disclosed extrusion dies (10) for forming a hollow material allow high-speed extrusion and prevent mandrel breakage, increasing service life. Said dies comprise: a male die (20) that extrudes a billet (B) in the downstream direction to form the interior shape of the final material, said billet having been sent from upstream; and a female die (30) that forms the exterior shape of the final material. The male die (20) comprises a mandrel (22) and a holder (25) that holds the outside thereof. The mandrel (22) is formed from an interior-forming part (23) and a bridge part (24) that supports said interior-forming part (23). The outer surface of the tip of the bridge part (24) engages with the inner surface of the holder (25), said engagement surface being angled such that the downstream side thereof, in the extrusion direction, approaches the center of the dies.

IPC Classes  ?

• B21C 25/02 - Dies

Abstract

A bumper stay less likely to bend sideways in a collision of the vehicle, the bumper stay facilitating inspection, replacement, etc. and enabling the stay body to have high freedom in design. A bumper stay is provided with a stay body (10) open at the upper and lower sides thereof, and also with a reinforcement member (20) disposed so as to divide the stay body (10) into upper and lower parts. The reinforcement member (20) is inserted in sidewise slits (2a-6a) formed in the stay body (10) and supports side walls (13, 14) of the stay body (10) when the side walls (13, 14) are deformed.

IPC Classes  ?

• B60R 19/24 - Arrangements for mounting bumpers on vehicles
• B60R 19/34 - Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type

Abstract

A bumper structure configured in such a manner that, although bumper stays are drawn products, the bumper structure has a desired peak load value and a sufficient amount of collision energy absorption. A bumper structure (B) provided with a pair of left and right bumper stays (1, 1) which are drawn products, and also with a bumper reinforcement member (2) which is supported by the bumper stays (1, 1). Each bumper stay (1) is provided with a bottom section (11) which is affixed to the vehicle body, a flat plate-like upper wall section (12) which protrudes from the bottom section (11) toward the bumper reinforcement member (2), a lower wall section (13), and a pair of left and right side wall sections (14, 15). The upper wall section (12) and the lower wall section (13) parallelly face each other. The opening of each bumper stay (1) is closed by the bumper reinforcement member (2), and the peripheral edge of the opening of the bumper stay (1) is secured to the bumper reinforcement member (2) by means of welding, etc.

IPC Classes  ?

• B60R 19/24 - Arrangements for mounting bumpers on vehicles
• B60R 19/34 - Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type

Abstract

A double floor structure capable of being adapted to the conditions of construction and the needs of users at low cost. A double floor structure (K) provided with support legs (1) which are provided on a lower floor and rows of beams which form an upper floor. The support legs (1) are each provided with an upper member (14) which supports a beam from the lower side, an intermediate member (13) which supports the upper member (14) from the lower side, and a lower member (12) which supports the intermediate member (13) from the lower side. The upper member (14), the intermediate member (13), and the lower member (12) consist of metallic, extruded shape material and are disposed in such a manner that the direction of the extrusion is aligned with the top-bottom direction.

IPC Classes  ?

• E04F 15/00 - Flooring
• E04F 15/024 - Sectional false floors, e.g. computer floors

Abstract

a) configuring member (10) are provided in opposing two side faces out of four side faces of the side face configuring member (10).

IPC Classes  ?

• B22F 3/24 - After-treatment of workpieces or articles

Abstract

This bent member manufacturing method uses a core at the time of bending a hollow section and can set an applicable bending radius or bending center axis over a wide range. A core (41) is inserted into the hollow portion of a hollow section (A) for the material of a bent member (B). A finishing face (4A) formed on the side face of the core (41) is positioned in a first bent area (M1) formed at the starting end portion of a working target area (M). In this state, the first bent area (M1) is subjected to a bending work so that an outer edge portion (A2) of the first bent area (M1) is worked into a shape along the finishing face (4A) of the core (41). The core (41) is moved to the trailing end side of the working target area (M), and the finishing face (4A) of the core (41) is positioned in a second bent area (M2) positioned adjacent to the first bent area (M1). In this state, the second bent area (M2) is subjected to a bending work so that the outer edge portion (A2) of the second bent area (M2) is worked into a shape along the finishing face (4A) of the core (41).

IPC Classes  ?

• B21D 9/07 - Bending tubes using mandrels or the like co-operating with forming members with one or more swinging forming members engaging tube ends only

Abstract

Provided is a joining quality management apparatus which allows for simple and speedy inspection of a joining state of a joint of a friction welded component obtained by cutting off a burr on the peripheral side of the joint occurring in friction welding. The joining quality management apparatus is provided with an imaging means (3) which images the peripheral surface of the joint (a) of the friction welded component (A), an extracting means (4) which extracts dark pixels having luminance values not higher than a reference luminance value from image data captured by the imaging means (3), a number-of-pixels summing means (5) which sums the number (N) of the dark pixels extracted by the extracting means (4), and a determination means (6) which determines whether a joining quality satisfies a management reference.  The determination means (6) determines that the management reference is satisfied when the number (N) of the dark pixels is not larger than the reference number (N0) of pixels, but determines that the management reference is not satisfied when the number (N) is larger than the reference number (N0) of pixels.

IPC Classes  ?

• G01N 21/88 - Investigating the presence of flaws, defects or contamination
• B23K 31/00 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups
• G06T 1/00 - General purpose image data processing
• B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding

Abstract

b). According to such case for rolling powder alloy, the aluminum powder alloy can be easily manufactured without failures at the time of rolling.

IPC Classes  ?

• B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor
• B22F 7/08 - 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 with one or more parts not made from powder
• B22F 7/04 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers with one or more layers not made from powder, e.g. made from solid metal
• B32B 1/08 - Tubular products
• B32B 15/16 - Layered products essentially comprising metal next to a particulate layer

Abstract

The invention provides a friction-welded part featuring easy design as well as a method of producing said part. The friction-welded part 1 is produced by friction-welding a first member 10 and a second member 20 together. The first member 10 is made of an aluminum alloy material, having a uniform cross-section portion 11 whose cross-sectional shape and size are not changed. The second member 20 is made of an aluminum alloy material, having a uniform cross-section portion 21 whose cross-sectional shape and size are not changed. According to the invention, the uniform cross-section portions 11 and 21 are friction-welded together to form the part 1. A heat affected zone “H” caused by friction welding is formed only in the uniform cross-section portions 11 and 21. The uniform cross-section portion 11 of the first member 10, and the uniform cross-section portion 21 of the second member 20, respectively, have a cylindrical shape, preferably having the same sectional dimension.

IPC Classes  ?

• B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
• B23K 103/10 - Aluminium or alloys thereof
• B60G 7/00 - Pivoted suspension armsAccessories thereof

Abstract

A lightweight bumper structure is achieved without a reduction in the amount of absorption of collision energy. A bumper structure (B1) is provided with a left and right pair of bumper stays (1, 1) fixed to side members (S), and also with a bumper reinforcing member (2) supported by both the bumper stays (1, 1). Each bumper stay (1) is formed in a shape the width of which gradually increases from the side member (S) toward the bumper reinforcing member (2). The bumper reinforcing member (2) is curved between both the bumper stays (1, 1). The rigidity of the bumper stays (1) and the bumper reinforcing member (2) is set so that the bumper stays (1) are crushed in the front-rear direction after the curved portion of the bumper reinforcing member (2) is rectilinearly extended.

IPC Classes  ?

• B60R 19/34 - Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
• B60R 19/04 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section

Abstract

Provided is a bumper structure capable of coping with a vertically offset collision without increasing the weight of a bumper more than necessary, and being manufactured without using a large extruder. A bumper structure (B1) includes a bumper reinforcement (1) formed of a hollow extruded member of aluminum alloy, and a height increasing part (2) formed of a hollow extruded member of aluminum alloy attached to an upper surface of the bumper reinforcement (1), wherein the length of the height increasing part (2) is shorter than the length of the bumper reinforcement (1).

IPC Classes  ?

• B60R 19/04 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section

Abstract

A method of producing an aluminum matrix composite material is described that comprises the steps of: mixing an aluminum powder and a ceramic powder to prepare a mixed powder; providing a lower casing made of aluminum and formed in a hollow rectangular parallelepiped shape having an open top, and a closing member made of aluminum and formed in a shape adapted to hermetically close the open top of the lower casing; packing the mixed powder into the lower casing; closing the open top of the lower casing filled with the mixed powder, by the closing member, to prepare a pre-rolling assembly having the mixed powder hermetically sealed therein; preheating the pre-rolling assembly; and rolling the preheated assembly to obtain the aluminum matrix composite material, where the aluminum matrix composite material includes a pair of metal plates having the mixed powder therebetween.

IPC Classes  ?

• B22F 3/14 - Both compacting and sintering simultaneously
• B22F 3/18 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by using pressure rollers

Abstract

A method of producing an aluminum matrix composite material is described that comprises the steps of: mixing an aluminum powder and a ceramic powder to prepare a mixed powder; providing a lower casing made of aluminum and formed in a hollow rectangular parallelepiped shape having an open top, and a closing member made of aluminum and formed in a shape adapted to hermetically close the open top of the lower casing; packing the mixed powder into the lower casing; closing the open top of the lower casing filled with the mixed powder, by the closing member, to prepare a pre-rolling assembly having the mixed powder hermetically sealed therein; preheating the pre-rolling assembly; and rolling the preheated assembly to obtain the aluminum matrix composite material, where the aluminum matrix composite material includes a pair of metal plates having the mixed powder therebetween.

IPC Classes  ?

• B22F 3/14 - Both compacting and sintering simultaneously

Abstract

A method of producing an aluminum matrix composite material is described that comprises the steps of: mixing an aluminum powder and a ceramic powder to prepare a mixed powder; providing a lower casing made of aluminum and formed in a hollow rectangular parallelepiped shape having an open top, and a closing member made of aluminum and formed in a shape adapted to hermetically close the open top of the lower casing; packing the mixed powder into the lower casing; closing the open top of the lower casing filled with the mixed powder, by the closing member, to prepare a pre-rolling assembly having the mixed powder hermetically sealed therein; preheating the pre-rolling assembly; and rolling the preheated assembly to obtain the aluminum matrix composite material, where the aluminum matrix composite material includes a pair of metal plates having the mixed powder therebetween.

IPC Classes  ?

• B22F 3/14 - Both compacting and sintering simultaneously

Goods & Services

COMPOSITE METAL MATRIX ALLOY MATERIALS BASED ON ALUMINIUM FOR USE IN STORAGE CONTAINERS FOR THE NUCLEAR POWER INDUSTRY

Abstract

Bumper stays are installed on bumper reinforcement at positions reasonable for absorbing impact force despite the fact that there are parts deformed due to bending work at the positions. The bumper reinforcement (10) is made of an extruding-formed member of a hollow cross sectional shape including an inner wall part (11) and an outer wall part (12), and an upper wall part (13) and a lower wall part (14) connecting those inner and outer wall parts to each other. At least a part of the extruding-formed member is bent to the vehicle body side. The bumper reinforcement is characterized in that it includes end surfaces (13a, 14a) onto which the bumper stays (50) on the vehicle body side are mounted, and the end surfaces (13a, 14a) are formed nearer to the vehicle body side than the inner wall part (11).

IPC Classes  ?

• B60R 19/04 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section
• B60R 19/24 - Arrangements for mounting bumpers on vehicles

Abstract

Provided is a bumper structure capable of suppressing the peak of a crushing load at the initial stage of a collision. The bumper structure comprises a bumper reinforcement (1) attached to a vehicle body (M) and a bumper stay (2) interposed between the vehicle body (M) and the bumper reinforcement (1). The bumper stay (2) has a contact part (28) contacting with the bumper reinforcement (1) and parts (29, 29) opposed to the bumper reinforcement (1) at an interval therebetween. The opposed parts (29, 29) press the bumper reinforcement (1) when the contact part (28) is stuck into the bumper reinforcement (1).

IPC Classes  ?

• B60R 19/24 - Arrangements for mounting bumpers on vehicles
• B60R 19/34 - Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type

Abstract

A case for powder alloy rolling that is inexpensive and is not broken at rolling operation; and a process for producing a rolled material with the use of the case for powder alloy rolling. The case for powder alloy rolling is powder alloy rolling case (1) of box shape comprising side face constituting member (10) for surrounding the side faces of metal powder (2), composed of two members (10a,10a) combined together into the form of a rectangular frame; superior lid constituting member (11) for covering the superior face of the metal powder (2), laid so as to cover one of the openings of the side face constituting member (10); and inferior lid constituting member (12) for covering the inferior face of the metal powder (2), laid so as to cover the other opening of the side face constituting member (10), wherein junction sites (10b,10b) of the members (10a,10a) building the side face constituting member (10) are respectively provided in two side faces opposite to each other among the four side faces of the side face constituting member (10). By virtue of this case for powder alloy rolling and a process for producing a rolled material with the use of the case for powder alloy rolling, there can be realized inhibition of breakage at rolling operation and low-cost production of aluminum powder alloy.

IPC Classes  ?

• B22F 3/14 - Both compacting and sintering simultaneously
• B22F 3/18 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by using pressure rollers
• B22F 3/24 - After-treatment of workpieces or articles
• B22F 7/08 - 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 with one or more parts not made from powder

Abstract

A case for rolling powder alloy without causing any damage. The case (1) for rolling powder alloy is formed into box type by a side face constitutive member (10) formed into a rectangular frame by combining two members (10a, 10b) to surround the side face of metal powder, an upper lid constitutive member (11) applied to one opening of the side face constitutive member (10) to cover the upper surface of metal powder, and a lower lid constitutive member (12) applied to the other opening of the side face constitutive member (10) to cover the lower surface of metal powder. On the fringe of the upper lid constitutive member (11) and the lower lid constitutive member (12), fringe walls (11b, 12b) are formed to stand along the outer circumferential surface of the side face constitutive member (10) which is thereby inserted into a space surrounded by the fringe walls (11b, 12b). With such a case for rolling powder alloy, aluminum powder alloy can be produced easily without causing any damage at the time of rolling.

IPC Classes  ?

• B22F 7/08 - 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 with one or more parts not made from powder
• B22F 3/14 - Both compacting and sintering simultaneously
• B22F 3/18 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor by using pressure rollers

Abstract

A friction welded part, and method of friction welding, realizing design facilitation. There is provided friction welded part (1) comprising aluminum alloy made first member (10) with uniform section portion (11) having no sectional change and, friction welded thereto, aluminum alloy made second member (20) with uniform section portion (21) having no sectional change. The uniform section portions (11,21) are friction welded to each other, and heat affected part (H) occurring due to the friction welding appears in the uniform section portions (11,21) only. Desirably, each of the uniform section portion (11) of the first member (10) and the uniform section portion (21) of the second member (20) is cylindrical and the sectional dimensions thereof are equal to each other.

IPC Classes  ?

• B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
• B60G 7/00 - Pivoted suspension armsAccessories thereof
• B23K 103/10 - Aluminium or alloys thereof

Abstract

A friction welded part easily designed, a suspension rod having the friction welded part, and a joining method. The friction welded part (1) is formed by friction welding a first member (10) where at least a first joint section is formed in a circular tube shape and also has a second member (20) having an appropriate shape. A second joint section (21) of the second member (20) is formed in a blind bottomed circular tube shape corresponding to the first joint section (10A). The inside of the circular tube shape is formed in a curved surface shape continuing over a tubular inner wall section (21C) and bottom section (21B), and the first joint section (10A) of the first member (10) and the second joint section (21) of the second member (20) are joined by friction welding.

IPC Classes  ?

• B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
• B60G 7/00 - Pivoted suspension armsAccessories thereof
• B23K 103/10 - Aluminium or alloys thereof

Abstract

A bumper stay placed between a vehicle body and a bumper reinforcement, providing a greater amount of absorption of impact energy while reducing the peak of a crush load and less likely to buckle laterally outward of the vehicle body. The bumper stay (2) has a pair of tubular sections (2A, 2B) arranged spaced apart in the front-rear direction and a pair of wall sections (2C, 2C) arranged to connect the tubular sections (2A, 2B). The pair of tubular sections (2A, 2B) and the pair of wall sections (2C, 2C) form three tubular spaces (2x, 2y, 2z) lying in the front-rear direction, between a side member (M) and the bumper reinforcement (1). Rigidity of both the pair of tubular sections (2A, 2B) and the pair of wall sections (2C, 2C) is determined so that the pair of wall sections (2C, 2C) sink into the pair of tubular sections (2A, 2B) when an impact load acts in the front-rear direction.

IPC Classes  ?

• B60R 19/34 - Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
• B60R 19/24 - Arrangements for mounting bumpers on vehicles