WO2018173859A1 - 車両用構造体 - Google Patents
車両用構造体 Download PDFInfo
- Publication number
- WO2018173859A1 WO2018173859A1 PCT/JP2018/009770 JP2018009770W WO2018173859A1 WO 2018173859 A1 WO2018173859 A1 WO 2018173859A1 JP 2018009770 W JP2018009770 W JP 2018009770W WO 2018173859 A1 WO2018173859 A1 WO 2018173859A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bumper
- wall
- force
- protrusion
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/023—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
- B60R2019/1813—Structural beams therefor, e.g. shock-absorbing made of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
- B60R2019/1813—Structural beams therefor, e.g. shock-absorbing made of metal
- B60R2019/182—Structural beams therefor, e.g. shock-absorbing made of metal of light metal, e.g. extruded
Definitions
- the present disclosure relates to a vehicle structure.
- a low specific gravity and high strength metal called high tension steel is used to reduce the weight and safety of automobiles.
- High tension steel is effective for weight reduction and safety improvement, but there is a limit to weight reduction compared to a further low specific gravity material such as an aluminum alloy.
- problems such as a decrease in formability, an increase in forming load, a decrease in dimensional accuracy, and a decrease in rigidity accompanying thinning occur.
- extruded materials, cast products, and press-formed products of aluminum alloys having a specific gravity lower than that of steel are used for vehicle parts.
- this aluminum alloy has a low specific gravity, it is effective for reducing the weight, but it has problems of low strength and high cost compared to high tension steel. For this reason, multi-materials that are utilized together with steel parts such as high-tension steel and aluminum alloy parts are being promoted.
- Patent Literature 1 discloses a member joining method that enables joining of dissimilar metals in multi-materialization by using an elastic body. Specifically, in the joining method of the member of Patent Document 1, an aluminum pipe is inserted into the hole of the steel part, rubber (elastic body) is inserted inside the aluminum pipe, and the rubber is pressurized and deformed. Thereby, the aluminum pipe is enlarged and deformed, and the steel part and the aluminum pipe are caulked and joined.
- the joining force between the members is weaker than joining by welding or bolt fastening. For this reason, when a force in the central axis direction of the aluminum pipe is applied, the steel part and the aluminum pipe may be disconnected from each other, and the aluminum pipe may penetrate the steel part. For example, when this joining method is applied to the bumper reinforcement of a vehicle, the possibility of this penetration increases when a strong collision force is applied from the front of the vehicle.
- An embodiment of the present invention has been made under such circumstances, and an object thereof is to provide a vehicle structure including a first member and a second member joined to each other. It is to prevent the first member from penetrating the second member when an axial load of the first member is applied.
- a vehicle structure includes a tubular first member having a protrusion on the outer periphery, and a tubular second member having a locking wall in which a hole into which the first member can be inserted is formed.
- the first member is joined to the second member by expanding the insertion portion of the second member into the hole portion, and the protrusion contacts the locking wall of the second member. It touches.
- the protrusion when a load in the axial direction of the first member is applied, the protrusion abuts against the locking wall of the second member, thereby supporting a part of the load and reducing the load acting on the joint portion. Can be reduced. For this reason, the joining strength of the 1st member and the 2nd member with respect to the axial load of the 1st member can be improved, and it can prevent that joining of the 1st member and the 2nd member comes off. As a result, the first member can be prevented from penetrating the second member.
- the hole may pass through the locking wall in a direction intersecting the longitudinal direction of the second member, and the protrusion may be provided to project in the longitudinal direction.
- the protrusion may extend in the axial direction of the first member.
- the protrusion amount of the protrusion may have a distribution in the axial direction of the first member of the protrusion.
- the weight can be reduced by partially reducing the protrusion amount of the protrusion or not protruding the protrusion.
- the collapsing strength of the first member against the axial force of the first member can be reduced while preventing the first member from penetrating the second member, and the collision energy absorption capacity of the vehicle structure is improved. it can.
- the first member may be a bumper stay for a vehicle
- the second member may be a bumper beam for a vehicle.
- the first member and the second member may be made of an aluminum material.
- the aluminum material refers to pure aluminum or aluminum alloy.
- the material of the first member may be different from the material of the second member.
- the first member may be made of an aluminum material, and the second member may be made of a steel material.
- the first member in the vehicle structure including the first member and the second member, when the longitudinal load of the first member is applied to the vehicle structure, the first member Can be prevented from penetrating the second member.
- FIG. 2 is a sectional view taken along line II-II in FIG.
- FIG. 3 is a sectional view taken along line III-III in FIG. 2.
- FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7.
- FIG. 10 is a sectional view taken along line XX in FIG. 9. Sectional drawing similar to FIG. 3 of the 3rd modification of 1st Embodiment. Sectional drawing similar to FIG. 3 of the 4th modification of 1st Embodiment. Sectional drawing similar to FIG. 2 of the structure for vehicles which concerns on 2nd Embodiment which concerns on this invention.
- FIG. 14 is a sectional view taken along line XIV-XIV in FIG. 13. Sectional drawing similar to FIG. 13 of the modification of 2nd Embodiment. Sectional drawing similar to FIG. 13 of the other modification of 2nd Embodiment. Sectional drawing similar to FIG.
- FIGS. 1 to 3 A vehicle structure according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3.
- terms indicating a specific direction or position for example, “up”, “down”, “lateral”, “front”, “rear”, “side”, “end” are used as necessary.
- the use of these terms is to facilitate understanding of the invention with reference to the drawings, and the technical scope of the present invention is not limited by the meaning of these terms. That is, these terms indicate the direction in the posture of the vehicle structure shown in the accompanying drawings, and do not necessarily coincide with the directions in the actual use state. Further, the following description is merely illustrative in nature and is not intended to limit the present invention, its application, or its use.
- the vehicle width direction of the vehicle is referred to as the X direction
- the vehicle front-rear direction is referred to as the Y direction
- the vehicle vertical direction is referred to as the Z direction.
- a bumper reinforcement (vehicle structure) 1 includes a pair of bumper stays (first members) 10A and 10B and one bumper beam (second member) 20. I have.
- the bumper stays 10A and 10B are tubular shapes extending in the Y direction. Referring also to FIG. 2, the bumper stays 10A and 10B have flat surfaces perpendicular to the longitudinal direction of the bumper stays 10A and 10B at one end 10a mechanically connected to a vehicle skeleton (not shown). .
- the bumper stays 10 ⁇ / b> A and 10 ⁇ / b> B are cut so as to conform to the shape of the bumper beam 20 at the other end 10 b mechanically connected to the bumper beam 20.
- the bumper stays 10 ⁇ / b> A and 10 ⁇ / b> B include an outer wall portion 11 having a closed cross-sectional shape with a rectangular outer shape on a vertical plane (XZ plane) with respect to the Y direction.
- the outer wall portion 11 has a pair of horizontal walls 11a extending in the X direction and a pair of vertical walls 11b extending in the Z direction so as to mechanically connect the end portions of the pair of horizontal walls 11a.
- Each bumper stay 10A, 10B includes inward projections 12A, 12B on a vertical wall 11b facing the other bumper stay 10B, 10A, of the pair of vertical walls 11b of the outer wall portion 11 of each bumper stay 10A, 10B.
- the inward protrusions 12A and 12B protrude toward the inside of the vehicle from a substantially central portion in the Z direction of the vertical wall 11b.
- Each bumper stay 10A, 10B includes outward projections 13A, 13B on a vertical wall 11b that does not face the other bumper stay 10B, 10A, of the pair of vertical walls 11b of the outer wall 11 of each bumper stay 10A, 10B. .
- the outward projections 13A and 13B protrude from the substantially center portion in the Z direction of the vertical wall 11b toward the outside of the vehicle.
- the inward projections 12A, 12B and the outward projections 13A, 13B according to the present embodiment have a thickness that is approximately the same as the thickness of the outer wall portion 11, and have a projection amount that is approximately twice the thickness of the outer wall portion. Have. Referring to FIG.
- the bumper stays 10A and 10B include an overhanging portion 14 in which the outer wall portion 11 swells to the outside of the bumper stays 10A and 10B.
- Such bumper stays 10A and 10B may be extruded materials made of, for example, an aluminum alloy.
- the bumper beam 20 is disposed on the front side of the bumper stay 10 in the Y direction.
- the bumper beam 20 includes a front wall 21 disposed on the XZ plane, and a rear wall 22 disposed on the XZ plane and spaced apart on the rear side in the Y direction. Both end portions of the front wall 21 each have a front inclined portion 21a that is inclined rearward in the Y direction toward the outside of the vehicle as viewed from the Z direction. Both end portions of the rear wall 22 respectively have rear inclined portions (locking walls) 22a inclined toward the rear side in the Y direction toward the outside of the vehicle as viewed from the Z direction.
- the bumper beam 20 includes an upper wall 23 and a lower wall 24 that are arranged on a plane perpendicular to the Z direction (XY plane) and mechanically connect the end of the front wall 21 and the end of the rear wall 22. That is, the bumper beam 20 according to the present embodiment is a tubular tube having both ends inclined with a space 25 surrounded by the front wall 21, the rear wall 22, the upper wall 23, and the lower wall 24. Each rear inclined portion 22a is formed with a hole portion 26 into which the outer wall portion 11 of the bumper stays 10A and 10B is inserted.
- the hole portion 26 has a rectangular shape similar to the outer shape of the outer wall portion 11 of the bumper stays 10 ⁇ / b> A and 10 ⁇ / b> B, and is slightly larger than the outer shape of the outer wall portion 11.
- a bumper beam 20 may be made of, for example, high tension steel.
- the overhanging portion 14 of the bumper stay 10 is located in the space portion 25 of the bumper beam 20, and is in contact with the entire circumference of the hole portion 26 at the end portion 14a.
- the inward projections 12A and 12B and the outward projections 13A and 13B of the bumper stays 10A and 10B are in contact with the rear inclined portion 22a of the rear wall 22 from the rear side in the Y direction.
- the first structural members 30A and 30B are used for forming the bumper stays 10A and 10B, respectively, and the second structural member 40 is used for forming the bumper beam 20.
- a rubber 50 elastic body
- a pusher 60 for compressing the rubber 50 are used for joining the first structural member 30 and the second structural member 40.
- the first structural members 30A and 30B include an outer wall portion 31 having a closed cross-sectional shape with a rectangular outer shape in the XZ plane.
- the outer wall portion 31 has a pair of horizontal walls (not shown) extending in the X direction and a pair of vertical walls 31b extending in the Z direction so as to mechanically connect the ends of the pair of horizontal walls.
- Each first structural member 30A, 30B has an inward projection 32A on a vertical wall 31b facing the other first structural member 30B, 30A, out of a pair of vertical walls 31b of the outer wall portion 31 of each first structural member 30A, 30B. , 32B.
- the inward protrusions 32A and 32B protrude toward the inner side of the vehicle from a substantially central portion in the Z direction of the vertical wall 31b.
- Each first structural member 30A, 30B projects outwardly into a vertical wall 31b that does not face the other first structural member 30B, 30A, out of the pair of vertical walls 31b of the outer wall portion 31 of each first structural member 30A, 30B.
- 33A and 33B are provided.
- the outward projections 33A and 33B protrude from the substantially center portion in the Z direction of the vertical wall 31b toward the outside of the vehicle.
- the second structural member 40 includes a front wall 41 disposed on the XZ plane, and a rear wall 42 disposed on the XZ plane and spaced apart on the rear side in the Y direction. Both end portions of the front wall 41 each have a front inclined portion 41a inclined toward the rear side in the Y direction toward the outside of the vehicle as viewed from the Z direction. Both end portions of the rear wall 42 have rear inclined portions 42a that are inclined toward the rear side in the Y direction toward the outside of the vehicle as viewed from the Z direction.
- the second structural member 40 includes an upper wall and a lower wall (not shown) that are arranged on the XY plane and mechanically connect the end of the front wall 41 and the end of the rear wall 42.
- the second structural member 40 is a tubular tube with both end portions provided with a space portion 45 surrounded by the front wall 41, the rear wall 42, the upper wall, and the lower wall.
- Each rear inclined portion 42a is formed with a hole 46 into which the outer wall portion 31 of the first structural member 30A, 30B is inserted.
- the hole 46 has a rectangular shape similar to the outer shape of the outer wall portion 31 of the first structural members 30 ⁇ / b> A and 30 ⁇ / b> B, and is slightly larger than the outer shape of the outer wall portion 31.
- the rubber 50 has a quadrangular prism shape extending in the Y direction.
- the outer shape of the rubber 50 is slightly smaller than the inner shape of the first structural members 30A and 30B to such an extent that it can be inserted into the first structural members 30A and 30B. Both ends of the rubber 50 have flat surfaces inclined with respect to the longitudinal direction of the rubber 50 corresponding to the shape of the second structural member 40.
- the material of the rubber 50 is preferably, for example, any of urethane rubber, chloroprene rubber, CNR rubber (chloroprene rubber + nitrile rubber), or silicon rubber.
- the hardness of the rubber 50 is preferably 30 or more on Shore A.
- the presser 60 is attached to a press device or the like (not shown), and the rubber 50 can be compressed in the Y direction by being driven by the press device.
- the pusher 60 has a convex portion 60a.
- the convex portion 60 a is a portion that presses the rubber 50.
- the pressing surface 60 b that is the end surface of the convex portion 60 a has a flat surface that is inclined with respect to the longitudinal direction of the rubber 50 corresponding to the shape of the rubber 50.
- the first structural members 30 ⁇ / b> A and 30 ⁇ / b> B are moved backward until the inward projections 32 ⁇ / b> A and 32 ⁇ / b> B and the outward projections 33 ⁇ / b> A and 33 ⁇ / b> B come into contact with the rear inclined portion 42 a of the rear wall 42 of the second structural member 40. It inserts in the hole 46 provided in the inclination part 42a. Then, the rubber 50 is inserted into the first structural members 30A and 30B.
- the protrusion 60a of the pusher 60 is inserted into the first structural members 30A and 30B, the rubber 50 is compressed in the Y direction, and bulged in a direction perpendicular to the compression direction, Thereby, the first structural members 30A and 30B are expanded.
- the first structural members 30A and 30B are caulked and joined to the second structural member 40 by this expansion.
- the first structural members 30 ⁇ / b> A and 30 ⁇ / b> B are formed with overhang portions 34. Deformation of the end 34 a of the overhang 34 is suppressed by the hole 46 of the second structural member 40.
- the deformation of the outer wall portion 31 of the first structural members 30A and 30B is suppressed by the inward projections 32A and 32B and the outward projections 33A and 33B in the portion having the inward projections 32A and 32B and the outward projections 33A and 33B.
- the bumper reinforcement 1 of the present embodiment has the following characteristics.
- the end surfaces of the inward projections 12A and 12B and the outward projections 13A and 13B are provided at positions that are lowered by one step from the end surfaces of the bumper stays 10A and 10B. Therefore, when the outer wall portion 11 of the bumper stays 10A and 10B is inserted into the hole portion 26 of the bumper beam 20, the inward projections 12A and 12B and the outward projections 13A and 13B are not inserted, and the rear inclined portion from the rear side in the Y direction. 22a can be contacted. Accordingly, the inward projections 12A and 12B and the outward projections 13A and 13B are applied to the rear inclined portion 22a when a force from the front side in the Y direction (see the broken arrow F1 in FIG.
- the inward projections 12A and 12B and the outward projections 13A and 13B support a part of the force by contacting the rear inclined portion 22a when a force in the X direction is applied to the bumper reinforcement 1. This can reduce the force acting on the joint. For example, when a force in the X direction (see the broken arrow F2) is applied due to an offset collision with the left front inclined portion 21a in FIG. 2, the outward projection 13A and the inward projection 12B come into contact with the rear inclined portion 22a. Can support a part of the force and reduce the force acting on the joint. Similarly, when an X-direction force (see broken line arrow F3) is applied due to an offset collision with the right front inclined portion 21a in FIG.
- the inward projection 12A and the outward projection 13B come into contact with the rear inclined portion 22a.
- a part of the force can be supported, and the force acting on the joint can be reduced.
- the bonding strength between the bumper stays 10A and 10B and the bumper beam 20 with respect to the force in the X direction can be improved, and the bonding between the bumper stays 10A and 10B and the bumper beam 20 can be prevented from coming off.
- the bumper stays 10A and 10B and the bumper beam 20 can be prevented from falling in the X direction.
- the bumper stays 10A and 10B when a collision force in the Y direction is applied to the bumper reinforcement 1, the bumper stays 10A and 10B can be prevented from penetrating the bumper beam 20 as described above.
- the bumper stays 10A and 10B are crushed.
- the bumper stays 10 ⁇ / b> A and 10 ⁇ / b> B are crushed, the collision energy is absorbed, so that the collision force is dispersed before reaching the cabin, and the driver can be safely protected.
- the bumper stays 10A and 10B and the bumper beam 20 when an impact force in the X direction is applied to the bumper reinforcement 1, the bumper stays 10A and 10B and the bumper beam 20 can be prevented from falling (falling down) as described above. It is possible to maintain the collision energy absorption ability.
- the bumper reinforcement 1 is exemplified as described above as an application target of the present invention, the present invention can be applied to any vehicle structure having tube expansion joints other than the bumper reinforcement 1.
- the bumper stays 10A and 10B are respectively provided with inward protrusions 12A and 12B.
- Each bumper stay 10A, 10B has an overhanging portion 14 formed on a vertical wall 11b in which the inward projections 12A, 12B are not provided, of the pair of vertical walls 11b of the outer wall portion 11 of each bumper stay 10A, 10B. Yes.
- the inward projections 12A and 12B can support a part of the force by abutting against the rear inclined portion 22a when a force in the X direction is applied to the bumper reinforcement 1, and the force acting on the joint portion Can be reduced.
- a force in the X direction see the broken arrow F2
- the inward protrusion 12B contacts the rear inclined portion 22a to reduce the force.
- the portion can be supported, and the force acting on the joint can be reduced.
- a force in the X direction see the broken arrow F3
- the inward projection 12A abuts on the rear inclined portion 22a to reduce the force.
- a part can be supported, and the force acting on the joint can be reduced.
- the bonding strength between the bumper stays 10A and 10B and the bumper beam 20 with respect to the force in the X direction can be improved, and the bonding between the bumper stays 10A and 10B and the bumper beam 20 can be prevented from coming off.
- the bumper stays 10A and 10B and the bumper beam 20 can be prevented from falling in the X direction.
- each bumper stay 10A, 10B is respectively provided with outward projections 13A and 13B.
- Each bumper stay 10A, 10B has an overhanging portion 14 formed on a vertical wall 11b in which the outward projections 13A, 13B are not provided, of the pair of vertical walls 11b of the outer wall portion 11 of each bumper stay 10A, 10B. Yes.
- the outward projections 13A and 13B can support a part of the force by abutting against the rear inclined portion 22a when force in the X direction is applied to the bumper reinforcement 1, and force acting on the joint portion Can be reduced.
- force acting on the joint portion can be reduced.
- a force in the X direction see broken line arrow F2
- the outward projection 13A comes into contact with the rear inclined portion 22a to reduce the force.
- the portion can be supported, and the force acting on the joint can be reduced.
- a force in the X direction see the broken arrow F3
- the outward projection 13B comes into contact with the rear inclined portion 22a to reduce the force.
- the bonding strength between the bumper stays 10A and 10B and the bumper beam 20 with respect to the force in the X direction can be improved, and the bonding between the bumper stays 10A and 10B and the bumper beam 20 can be prevented from coming off. As a result, the bumper stays 10A and 10B and the bumper beam 20 can be prevented from falling in the X direction.
- the bumper stays 10 ⁇ / b> A and 10 ⁇ / b> B include a pair of vertical protrusions 15.
- the vertical protrusion 15 is provided so as to protrude in the Z direction from a substantially central portion in the X direction of the pair of horizontal walls 11a.
- the bumper stays 10A and 10B include an outer wall portion 11 having a closed cross-sectional shape whose outer shape is circular with respect to the XZ plane.
- the outer wall portion 11 has an axis C1 extending in the Y direction.
- the bumper stays 10A and 10B respectively include inward protrusions 12A and 12B that protrude toward the inside of the vehicle from the outer wall portion 11 located on the inner side of the vehicle than the axis C1.
- the bumper stays 10A and 10B are respectively provided with outward projections 13A and 13B projecting from the outer wall portion 11 located outside the vehicle from the axis C1 toward the outside of the vehicle.
- the inward projections 12A and 12B, the outward projections 13A and 13B, and the axis C1 are disposed at the same position in the Z direction.
- the bumper stays 10A and 10B of the present embodiment have inward projections 12A and 12B and outward projections 13A and 13B.
- the protrusion amounts of the inward protrusions 12A and 12B and the outward protrusions 13A and 13B according to the present embodiment have a distribution in the Y direction.
- the bumper stays 10A and 10B have inward projections 12A and 12B and outward projections 13A and 13B in the vicinity of the contact portion with the bumper beam 20 in the Y direction, but inward in other portions.
- the projections 12A and 12B and the outward projections 13A and 13B are not provided.
- the bumper stays 10A and 10B can be reduced in weight by the presence of the portions where the inward protrusions 12A and 12B and the outward protrusions 13A and 13B are not provided.
- the portion has lower strength against the force in the Y direction than the portion where the inward protrusions 12A and 12B and the outward protrusions 13A and 13B exist. Therefore, the bumper stays 10A and 10B are easily crushed by the force in the Y direction while preventing the bumper stays 10A and 10B from penetrating the bumper beam 20. As a result, the collision energy absorbing ability of the bumper stays 10A and 10B can be improved.
- the bumper stays 10A and 10B are provided with a mounting plate 16 for mounting the bumper reinforcement 1 on the vehicle body at the end on the rear side in the Y direction.
- the bumper stays 10A and 10B have inward projections 12A and 12B and outward projections 13A and 13B in the vicinity of the contact portion with the bumper beam 20 and in the vicinity of the mounting plate 16, but in the other portions, the inward projections 12A and 12B are provided. 12B and outward projections 13A and 13B are not provided.
- the inward projections 12A and 12B and the outward projections 13A and 13B have a protruding amount that decreases from the front side to the rear side in the Y direction when viewed from the Z direction.
- the bumper stays 10 ⁇ / b> A and 10 ⁇ / b> B penetrate the bumper beam 20.
- the bumper stays 10A and 10B have flat surfaces perpendicular to the Y direction at both ends.
- the front inclined portion 21a of the bumper beam 20 is provided with a hole portion 27 having the same shape and concentric with the hole portion 26 of the rear inclined portion 22a.
- the bumper stays 10A and 10B are inserted into the hole portion 26 of the rear inclined portion 22a of the bumper beam 20 and the hole portion 27 of the front inclined portion 21a.
- the outer wall portion 11 of the bumper stays 10 ⁇ / b> A and 10 ⁇ / b> B is formed with a protruding portion 14 at the space portion 25 and the front side in the Y direction of the bumper beam 20.
- the first structural members 30A and 30B have flat surfaces perpendicular to the Y direction at both ends.
- the second structural member 40 is provided with a hole 47 having the same shape concentrically with the hole 46 of the rear inclined portion 42a in the front inclined portion 41a.
- the first structural members 30A and 30B are inserted into the hole portions 46 of the rear inclined portion 42a of the second structural member 40 and then inserted into the hole portions 47 of the front inclined portion 41a.
- the rubber 50 has flat surfaces perpendicular to the Y direction at both ends.
- the pusher 60 is disposed with respect to both end portions of one first structural member 30A, 30B. That is, two pushers 60 are used for one first structural member 30A, 30B.
- one pusher 60 is fixedly arranged, and the other pusher 60 is inserted from the end of the first structural members 30A and 30B.
- the pusher 60 compresses the rubber 50 in the Y direction and expands it in the direction orthogonal to the compression direction, thereby expanding the outer wall portion 31 of the first structural members 30A and 30B.
- the outer wall portion 31 of the first structural member 30A, 30B is caulked and joined to the two hole portions 46, 47 of the second structural member 40 by expansion. That is, in the present embodiment, one first structural member 30A, 30B is caulked and joined to the second structural member 40 in at least two places (two holes 46, 47).
- the rubber 50 from which the compression by the pusher 60 is released and the compression force is removed is restored to its original shape by its own elastic force. Therefore, the rubber 50 can be easily removed from the first structural members 30A and 30B.
- the through holes 26 and 27 when the holes 26 and 27 are formed in the bumper beam 20, the through holes can be formed.
- the through-hole is easier to form from the viewpoint of processing than the half-stopped (half-through) hole.
- the first structural members 30A and 30B penetrate the second structural member 40, and the rubber 50 can be inserted from both ends of the first structural members 30A and 30B, it is more convenient than the first embodiment. Improved. Further, since the caulking is performed at two places, the bonding strength is improved as compared with the other embodiments described above.
- the inward projection, the outward projection, and the vertical projection may be formed separately from the bumper stay.
- the cross-sectional shape of the bumper stay is not limited to a rectangle or a circle, and may be a polygon, for example.
- two or more inward projections, outward projections, and vertical projections may be provided for one bumper stay.
- the bumper beam is not limited to a steel material such as high tension steel, and may be made of, for example, an aluminum alloy. That is, both the bumper beam and the bumper stay may be made of an aluminum material.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
図1から図3を参照して、本発明の第1実施形態に係る車両用構造体を説明する。なお、以下の説明では、必要に応じて特定の方向又は位置を示す用語(例えば、「上」、「下」、「横」、「前」、「後」、「側」、「端」を含む用語)を用いるが、それらの用語の使用は図面を参照した発明の理解を容易にするためであって、それらの用語の意味によって本発明の技術的範囲が限定されるものではない。つまり、それらの用語は、添付図面に示される車両用構造体の姿勢における方向を示すものであり、必ずしも実際の使用状態における方向と一致するものでない。また、以下の説明は、本質的に例示に過ぎず、本発明、その適用物、あるいは、その用途を制限することを意図するものではない。
図13及び図14を参照して、本発明の第2実施形態を説明する。
図17を参照して、本発明の第3実施形態について説明する。
10A,10B バンパーステイ(第1部材)
11 外壁部
11a 水平壁
11b 垂直壁
12A,12B 内向突起
13A,13B 外向突起
14 張出部
15 垂直突起
16 取り付けプレート
20 バンパービーム(第2部材)
21 前壁
21a 前方傾斜部
22 後壁
22a 後方傾斜部(係止壁)
23 上壁
24 下壁
25 空間部
26 孔部
27 孔部
30A,30B 第1構造部材
31b 垂直壁
32A,32B 内向突起
33A,33B 外向突起
34 張出部
40 第2構造部材
41 前壁
41a 前方傾斜部
42 後壁
42a 後方傾斜部
43 上壁
44 下壁
45 空間部
46 孔部
47 孔部
50 ゴム(弾性体)
60 押子
60a 凸部
60b 押圧面
Claims (8)
- 外周に突起を有する管状の第1部材と、
前記第1部材を挿入可能な孔部が形成された係止壁を有する管状の第2部材と
を備え、
前記第1部材は、前記第2部材の前記孔部への挿入部が拡管されて前記第2部材と接合されており、
前記突起は、前記第2部材の前記係止壁に当接している、車両用構造体。 - 前記孔部は、前記第2部材の長手方向と交差する方向に前記係止壁を貫通し、
前記突起は、前記長手方向に突出して設けられている、請求項1に記載の車両用構造体。 - 前記突起は、前記第1部材の軸方向に延在している、請求項1又は請求項2に記載の車両用構造体。
- 前記突起の突出量は、前記突起の前記第1部材の軸方向に分布を有する、請求項3に記載の車両用構造体。
- 前記第1部材は車両用のバンパーステイであり、前記第2部材は車両用のバンパービームである、請求項1又は請求項2に記載の車両用構造体。
- 前記第1部材及び前記第2部材は、アルミニウム材からなる、請求項1又は請求項2に記載の車両用構造体。
- 前記第1部材の材料は、前記第2部材の材料と異なる、請求項1又は請求項2に記載の車両用構造体。
- 前記第1部材は、アルミニウム材からなり、前記第2部材は鋼材からなる、請求項7に記載の車両用構造体。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16/495,299 US10974673B2 (en) | 2017-03-24 | 2018-03-13 | Vehicular structure |
| EP18770206.3A EP3604045B1 (en) | 2017-03-24 | 2018-03-13 | Vehicular structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-059794 | 2017-03-24 | ||
| JP2017059794A JP6760873B2 (ja) | 2017-03-24 | 2017-03-24 | 車両用構造体 |
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| Publication Number | Publication Date |
|---|---|
| WO2018173859A1 true WO2018173859A1 (ja) | 2018-09-27 |
Family
ID=63584506
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2018/009770 Ceased WO2018173859A1 (ja) | 2017-03-24 | 2018-03-13 | 車両用構造体 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10974673B2 (ja) |
| EP (1) | EP3604045B1 (ja) |
| JP (1) | JP6760873B2 (ja) |
| WO (1) | WO2018173859A1 (ja) |
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| US11590911B2 (en) | 2019-07-26 | 2023-02-28 | Shape Corp. | Hybrid bumper assembly for a vehicle |
| JP7397743B2 (ja) * | 2020-04-08 | 2023-12-13 | 株式会社神戸製鋼所 | 構造体の製造方法 |
| JP1693926S (ja) * | 2021-01-15 | 2021-08-30 | 自動車用バンパーレインフォースメント | |
| JP1700400S (ja) * | 2021-01-15 | 2021-11-22 | ||
| JP1700539S (ja) * | 2021-01-15 | 2021-11-22 | ||
| JP1700540S (ja) * | 2021-01-15 | 2021-11-22 | ||
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| JP1693925S (ja) * | 2021-01-15 | 2021-08-30 | 自動車用バンパーレインフォースメント | |
| JP1700401S (ja) * | 2021-01-15 | 2021-11-22 | ||
| JP1693927S (ja) * | 2021-01-15 | 2021-08-30 | 自動車用バンパーレインフォースメント | |
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Also Published As
| Publication number | Publication date |
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| US10974673B2 (en) | 2021-04-13 |
| JP2018161946A (ja) | 2018-10-18 |
| US20210009058A1 (en) | 2021-01-14 |
| EP3604045A1 (en) | 2020-02-05 |
| EP3604045A4 (en) | 2020-11-04 |
| JP6760873B2 (ja) | 2020-09-23 |
| EP3604045B1 (en) | 2025-10-01 |
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