Impact absorbing structure for vehicle bumper

Abstract

To inhibit excessive deformation of a bumper by an impact absorption member in a more reliable manner.SOLUTION: In an impact absorption structure of a vehicular bumper in which the vehicle outer side of a skeleton member 10 is covered with a bumper cover (a rear bumper cover 5), the skeleton member 10 is provided with an impact absorption member 20 which deforms an impact load applied from the bumper cover (the rear bumper cover 5) side to the skeleton member 10 side to absorb the impact load. In the impact absorption member 20, a transmission part 30 which is butted with the skeleton member 10 to transmit the impact load is provided in a middle part in its deformation direction.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an impact absorbing structure for a vehicle bumper in which the vehicle outer side of a frame member is covered with a bumper cover. [Background technology]

[0002] This type of impact absorbing structure for a vehicle bumper is described in Patent Document 1. A door opening that can be opened and closed is formed at the rear of the vehicle by a rear door panel. A rear bumper extending in the vehicle width direction is disposed below the door opening so as to cover the vehicle's framework. That is, a vertical wall-shaped rear body panel is disposed below the door opening. A chassis frame extending in the vehicle front-rear direction is disposed below the rear body panel, and a cross member extending in the vehicle width direction is fixed to the outer (rear) end of the chassis frame. The outer side of the rear body panel and the cross member that constitute the vehicle's framework are covered by the rear bumper.

[0003] A corrugated member (shock absorbing member) is attached to the rear body panel to absorb impact loads applied from the rear bumper to the rear body panel. The corrugated member is a plate material bent into a corrugated shape in a side view, and is disposed so as to extend from the rear body panel to the outside (rear) of the vehicle. In the above-described configuration, when an object strikes the rear bumper, the corrugated member first buckles and deforms toward the rear body panel to absorb the impact load. When a large impact load is applied, the cross member also deforms. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-235958 Summary of the Invention [Problem to be solved by the invention]

[0005] In this type of impact absorbing structure for a vehicle bumper, there is a demand for minimizing deformation of the bumper during a collision. In other words, if the bumper is excessively deformed and a colliding object penetrates the vehicle, the colliding object may be strongly struck against the exterior of the vehicle, particularly against the exterior member protruding from the outside of the vehicle. However, in the above-mentioned configuration, the corrugated member (impact absorbing member) is unable to absorb the large impact load, and the rear bumper may be excessively deformed. The present invention has been devised in view of the above-mentioned points, and the problem to be solved by the present invention is to more reliably suppress excessive deformation of the bumper by the impact absorbing member. [Means for solving the problem]

[0006] As a means for solving the above problems, the shock absorbing structure for a vehicle bumper of the first invention is a shock absorbing structure for a vehicle bumper in which the vehicle outer side of the skeleton member is covered with a bumper cover. The skeleton member is provided with a shock absorbing member that absorbs the impact load applied from the bumper cover side to the skeleton member side by deforming. In this type of configuration, it is desirable that the shock absorbing member can more reliably suppress excessive deformation of the bumper. Therefore, the shock absorbing member of the present invention is provided with a transmission portion midway in the deformation direction, which transmits the impact load by coming into contact with the skeleton member. And The frame member is formed with a connection point where the ends of the side members extending in the vehicle longitudinal direction and the cross members extending in the vehicle width direction are connected to each other, and the impact absorbing member protrudes from the connection point in the vehicle longitudinal direction or the vehicle width direction toward the bumper cover located on the outside of the vehicle. The vehicle is provided with an exterior member that protrudes outside the connection point, and the impact absorbing member protrudes outside the vehicle more than the exterior member so that it can receive an impact load before the exterior member. In the present invention, when a relatively large impact load is applied to the impact absorbing member, the transmission part comes into contact with the frame member during the deformation of the impact absorbing member, so that the applied impact load is distributed between the impact absorbing member and the frame member, and the colliding object can be received while suppressing excessive deformation of the bumper. In the present invention, taking into consideration the exterior members of the vehicle, the shock absorbing member is designed to bear the impact load applied from the bumper cover side first.

[0007] The shock absorbing structure for a vehicle bumper of the second invention is the shock absorbing structure for a vehicle bumper of the first invention, in which the shock absorbing member is disposed between the end of the bumper cover on the vehicle outer side and the skeleton member. In this invention, the shock absorbing member can be appropriately deformed from the bumper cover side toward the skeleton member side, and the transmission part provided on the shock absorbing member can be more reliably brought into contact with the skeleton member.

[0008] The shock absorbing structure for a vehicle bumper of the third invention is the shock absorbing structure for a vehicle bumper of the first or second invention, in which the transmission part is provided on at least one of the outer surface of the shock absorbing member facing the outside of the vehicle or the inner surface on the opposite side. In the present invention, by providing the transmission part on at least one of the inner and outer surfaces of the shock absorbing member according to the deformation mode of the shock absorbing member, the transmission part can be more reliably brought into contact with the framework member.

[0009] The shock absorbing structure for a vehicle bumper of the fourth invention is the shock absorbing structure for a vehicle bumper of any one of the first to third inventions, in which the transmission part is provided so as to face the skeletal member when no impact load is applied. In the shock absorbing member of the present invention, the transmission part is provided so as to face the skeletal member based on the state before deformation. This makes it possible for the transmission part to be more reliably abutted against the skeletal member when the shock absorbing member is deformed.

[0011] No. 5 The shock absorbing structure for a vehicle bumper according to the present invention is 4 In the shock absorbing structure for a vehicle bumper according to any one of the present inventions, the shock absorbing member is provided with a receiving portion capable of receiving a load applied to the bumper cover from the vehicle height direction. In the present invention, the load applied to the bumper cover from the vehicle height direction can be received by the receiving portion of the shock absorbing member. Effect of the Invention

[0012] According to the first aspect of the present invention, the impact absorbing member can more reliably suppress excessive deformation of the bumper. Furthermore, according to the first aspect of the present invention, the shock absorbing member can more reliably suppress excessive deformation of the bumper by taking into consideration the arrangement position of the exterior member of the vehicle. According to the second aspect of the invention, the excessive deformation of the bumper can be more reliably suppressed. According to the third aspect of the invention, the excessive deformation of the bumper can be more reliably suppressed. According to the fourth aspect of the invention, the shock absorbing member can more reliably receive the impact load applied to the bumper. 5 According to the present invention, the shock absorbing properties of the shock absorbing member can be ensured in many ways. [Brief description of the drawings]

[0013] [Figure 1] FIG. [Diagram 2] FIG. 2 is a schematic vertical cross-sectional view of the rear part of the vehicle. [Diagram 3] 1 is a perspective view showing, in part see-through form, a shock absorbing structure for a vehicle bumper; [Figure 4] 1 is a cross-sectional view, partly in perspective, of a shock absorbing structure for a vehicle bumper; [Diagram 5] 1 is a perspective view of the shock absorbing member from the rear side (back side) of the frame member as viewed obliquely from below. FIG. [Figure 6] 4 is a cross-sectional view of the shock absorbing member and the framework member to which an impact load is applied. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, an embodiment of the present invention will be described with reference to Figs. 1 to 6. In each figure, arrows indicating the front-rear direction, left-right direction (vehicle width direction), and up-down direction (vehicle height direction) of the vehicle are appropriately illustrated. For convenience, Fig. 3 shows the rear bumper cover in a see-through manner to illustrate the shock absorbing member and framework member therein. Fig. 4 shows the shock absorbing member in a partially see-through manner to illustrate the transmission unit provided therein.

[0015] [Vehicle rear structure] Before describing the shock absorbing structure of the vehicle bumper, the rear structure of the vehicle 2 shown in FIG. 1 will be described. A door opening 3 is provided on the rear surface of the vehicle 2, and the door opening 3 is configured to be openable and closable by a vertically pivotable back door 4. A rear bumper cover 5 extending in the vehicle width direction is attached to the vehicle lower side of the door opening 3. The rear bumper cover 5 has a main body 6 provided on the vehicle lower side of the door opening 3, and a corner portion 7 (described in detail later) provided on the outer side of the main body 6 in the vehicle width direction (right side in FIG. 1). Here, the main body 6 is formed so as to extend in the vehicle width direction, and a step portion 60 provided with a groove is formed on the upper surface of the main body 6. A rear lamp 8 as an exterior member is provided on the vehicle upper side of the corner portion 7 of the rear bumper cover 5 so as to follow the outer edge of the door opening 3. The rear lamp 8 is a relatively large rear combination lamp, and is provided so as to protrude to the outside of the vehicle (rear side in FIG. 2) as shown in FIG. 2.

[0016] [Impact absorbing structure for vehicle bumpers] 3, the vehicle underside of the door opening 3 is provided with left and right side members 11 extending in the vehicle front-rear direction and a cross member 12 extending in the vehicle width direction between the left and right side members 11 as a frame member 10 of the vehicle 2 (for convenience, only the right side member is shown in FIG. 3). The impact absorbing structure of the vehicle bumper is composed of the frame member 10 of the vehicle 2, a rear bumper cover 5 covering the vehicle outer side of the frame member 10, and an impact absorbing member 20 disposed between the frame member 10 and a corner portion 7 of the rear bumper cover 5. In the impact absorbing structure of the vehicle bumper, as shown in FIG. 2, when a colliding object (such as a striker 40 described later) collides with the rear bumper cover 5 side, the impact load is absorbed by the impact absorbing member 20 being deformed. In this type of configuration, it is desired that the impact absorbing member 20 more reliably suppresses excessive deformation of the bumper, taking into consideration the fact that the above-mentioned rear lamp 8 protrudes to the vehicle outer side, etc. In this embodiment, therefore, the structure (transmission section) of the impact absorbing member 20 described later is used to more reliably suppress excessive deformation of the bumper. Each component of the impact absorbing structure of the vehicle bumper will be described in detail below, together with the position of the rear lamp 8.

[0017] [Rear bumper cover] First, in the rear bumper cover 5 shown in FIG. 1, the corner portion 7 is formed so as to extend from the main body portion 6 to the outer side in the vehicle width direction (the right side in FIG. 1). The corner portion 7 is disposed on the vehicle lower side of the rear lamp 8 described above, and gradually curves toward the front side of the vehicle as it moves toward the outer side in the vehicle width direction. The outer end of the corner portion 7 in the vehicle width direction is bent at a substantially right angle toward the upper side of the vehicle, and the upper end of the corner portion 7 is joined to a side panel 9 provided on the right side of the vehicle 2. The corner portion 7 is formed in a substantially horizontal U-shape in vertical section with the front side of the vehicle open, as shown in FIG. 2. The corner portion 7 covers the outer side of the frame member 10 described above (the rear side in FIG. 2), and the rear surface 71 of the corner portion 7 forms the outer end of the rear bumper cover 5. The upper surface 70 of the corner portion 7 is provided at approximately the same height as the step portion 60 of the main body portion 6 shown in FIG. 1.

[0018] [Rear bumper cover (corner part) and rear lamp placement] Here, the positional relationship between the corner portion 7 of the rear bumper cover 5 and the rear lamp 8 will be described. First, referring to Fig. 1, in a plan view of the vehicle 2 seen from the rear side (one direction), the corner portion 7 of the rear bumper cover 5 and the rear lamp 8 are arranged on the same plane. As shown in Fig. 2, the corner portion 7 of the rear bumper cover 5 protrudes from the frame member 10 to the outside of the vehicle (rear side in Fig. 2) with a protrusion dimension L1. From the viewpoint of ensuring an excellent design, the rear lamp 8 also protrudes from the frame member 10 to the outside of the vehicle, but the protrusion dimension L2 is smaller than the protrusion dimension L1 of the rear bumper cover 5 described above.

[0019] [Shock absorbing material] 2 to 4, the impact absorbing member 20 is a member that absorbs an impact load applied from the rear bumper cover 5 side to the frame member 10 side by deforming. As shown in FIG. 2, the impact absorbing member 20 is disposed between the rear surface 71 of the corner portion 7 of the rear bumper cover 5 and the frame member 10. An elastically expandable and contractible absorber 25 is disposed on the vehicle upper side of the impact absorbing member 20 as shown in FIGS. 2 and 4. The absorber 25 is disposed so as to extend in the vehicle width direction within the main body portion 6 of the rear bumper cover 5 shown in FIG. 4, and the outer side (right side in FIG. 4) of the absorber 25 in the vehicle width direction is disposed on the impact absorbing member 20.

[0020] As shown in Figs. 3 and 4, the impact absorbing member 20 is formed in a substantially trapezoidal column shape from a left side wall portion 21, a right side wall portion 22, and an upper wall portion 23 extending between the both side wall portions 21, 22 (in Fig. 4, the upper wall portion 23 is illustrated by a broken line in order to partially see through the impact absorbing member 20). Here, the left side wall portion 21 and the right side wall portion 22 are formed in a vertical wall shape extending in the vehicle front-rear direction, and are gradually inclined in a direction away from each other toward the framework member 10. The rear end portion of the left side wall portion 21 is bent in the vehicle width direction (to the right side in each figure), and the rear end portion 210 of the bent left side wall portion 21 is fixed to the rear end portion of the right side wall portion 22 so as to form the top side 20A of the impact absorbing member 20. In addition, a left flange portion 211 is formed at the front end portion of the left side wall portion 21, which protrudes outward (to the left side in each figure), and this left flange portion 211 is fastened and fixed to the cross member 12. A right flange 221 is also formed at the front end of the right side wall 22, protruding outward (to the right side in each drawing), and this right flange 221 is fastened and fixed to the right side member 11. The upper wall 23 shown in FIG. 3 is fixed substantially horizontally between the both side wall portions 21, 22, so that the shock absorbing member 20 is formed into a substantially trapezoidal columnar shape. In this manner, the shock absorbing member 20 is fixed to the cross member 12 and the side member 11 (framework member 10) with the narrow top side 20A facing the corner portion 7. The shock absorbing member 20 is formed into a hat shape with excellent rigidity from the left side wall portion 21 and the right side wall portion 22, so that it can receive an impact load applied from the rear bumper cover 5 side (see FIG. 6).

[0021] [Receiving part] In addition, in the impact absorbing member 20 shown in Fig. 2, the above-mentioned absorber 25 is supported by the upper wall portion 23. That is, the upper wall portion 23 serves as a receiving portion 230 for receiving a load F applied to the rear bumper cover 5 from above in the vehicle height direction, and is adapted to receive the load F together with the absorber 25 (in Fig. 2, the arrow indicating the direction in which the load is applied is marked with the symbol F). As a result, when an occupant climbs onto the corner portion 7, the load F of the occupant is received by the receiving portion 230 of the impact absorbing member 20 and the absorber 25, which contributes to ensuring the passenger rigidity of the bumper. Also, by ensuring the rigidity of the corner portion 7 in the vehicle height direction, the corner portion 7 can be formed into a desired shape.

[0022] [Location of shock absorbing components] 2, the shock absorbing member 20 is provided so as to protrude from the frame member 10 toward the outside of the vehicle (rear side in FIG. 2) with a protrusion dimension L3, which is larger than the protrusion dimension L2 of the rear lamp 8 described above. As a result, the shock absorbing member 20 is able to receive the impact load applied from the rear bumper cover 5 side first at its top side 20A. Also, referring to FIG. 4, the shock absorbing member 20 can be arranged so as to be inclined toward the outside (outward) in the vehicle width direction at an angle θ with respect to an imaginary line VL extending in the vehicle front-rear direction, assuming various collision tests. For example, in the case of a pendulum collision test, the pendulum-shaped striker 40 strikes the vehicle 2 from a direction inclined outward at an angle of 30° with respect to the longitudinal direction (imaginary line VL) of the vehicle 2. In such a case, the shock absorbing member 20 is inclined outward so as to face the striker 40. As a result, the impactor 40 hitting the rear bumper cover 5 side can be received by the top side 20A of the impact absorbing member 20, and further, the impact absorbing member 20 deforms toward the frame member 10 side due to the impact load applied from the impactor 40.

[0023] [Transmission section] The shock absorbing member 20 shown in Fig. 4 is provided with a transmission part 30 in the middle of its deformation direction (the direction from the rear bumper cover 5 toward the frame member 10). With reference to Figs. 4 and 5, the transmission part 30 is formed of a plate material bent into a U-shape in cross section, and is attached to the left side wall part 21 of the shock absorbing member 20 so as to protrude inward (to the right side in each figure) and toward the front side of the vehicle. That is, in the transmission part 30, the abutment part 31 formed at the tip of the U-shape is arranged facing the front side of the vehicle, and legs 32, 33 extending from both ends of the abutment part 31 toward the rear side of the vehicle are fixed to the inner surface of the left side wall part 21. As a result, when no impact load is applied to the shock absorbing member 20, the abutment part 31 of the transmission part 30 faces the rear surface of the frame member 10 in the vehicle longitudinal direction. Here, the position of the transmission part 30 relative to the impact absorbing member 20, i.e., the distance D between the transmission part 30 and the framework member 10, is not particularly limited as long as it is possible to suppress excessive deformation of the impact absorbing member 20. For example, referring to Figures 2 and 4, the transmission part 30 can be set so that when a colliding object (40) collides with the rear bumper cover 5 side, the transmission part 30 comes into contact with the framework member 10 before the colliding object (40) comes into contact with the rear lamp 8.

[0024] [Function of shock absorbing material (transmission part)] In the vehicle 2 shown in FIG. 2, when a colliding object (40) collides with the rear bumper cover 5 side, the shock absorbing member 20 is configured to deform to absorb the impact load. In the shock absorbing structure of this type of vehicle bumper, as described above, there is a demand to suppress excessive deformation of the bumper so that the colliding object (40) does not penetrate into the vehicle side significantly. Therefore, the shock absorbing member 20 of this embodiment is provided with a transmission part 30 that transmits the impact load by contacting the frame member 10 midway in the deformation direction. According to the above-mentioned configuration, when a relatively large impact load is applied, the transmission part 30 contacts the frame member 10 midway during the deformation of the shock absorbing member 20. Therefore, the functions of the shock absorbing member 20 and the transmission part 30 will be described below assuming a pendulum collision test.

[0025] 2 and 4, in the pendulum collision test, a pendulum-shaped striker 40 is applied to the corner portion 7 of the rear bumper cover 5 from diagonally behind. The impact absorbing member 20 is inclined outward to face the striker 40 as described above, and the top side 20A of the impact absorbing member 20 protrudes further outward from the vehicle (to the rear side in each drawing) than the rear lamp 8 described above. For this reason, the impact absorbing member 20 receives the impact load of the striker 40 first and begins to deform (crush) toward the framework member 10.

[0026] 6, a case where a relatively large impact load is applied to the impact absorbing member 20 from the impact element 40 will be described (in FIG. 6, the arrow indicating the direction of the impact load is indicated by the reference symbol 40). In this case, in the process of the impact absorbing member 20 deforming toward the skeletal member 10, the transmission part 30 provided in the middle of the deformation direction comes into contact with the skeletal member 10. In particular, in the impact absorbing member 20, the abutment part 31 of the transmission part 30 is disposed so as to face the skeletal member 10 even in a state where no impact load is applied (see FIG. 4). Therefore, as the impact absorbing member 20 deforms toward the skeletal member 10, the abutment part 31 of the transmission part 30 naturally comes into contact with the skeletal member 10. As a result, the impact load applied from the impact element 40 can be distributed and received by the impact absorbing member 20 and the skeletal member 10. As a result, the impact absorbing member 20 can receive the striker 40 without being excessively crushed and deformed, and excessive deformation of the bumper, that is, the amount of penetration IA of the striker 40 into the vehicle side shown in Figures 2 and 4, can be suppressed.

[0027] 2, even if the rear lamp 8 protrudes outward from the frame member 10, the striker 40 does not penetrate excessively into the rear bumper cover 5, making it difficult for the striker 40 to hit the rear lamp 8. Therefore, the above-mentioned configuration allows for greater freedom in selecting the shape of the vehicle 2, making it possible to make the rear lamp 8 protrude outward from the frame member 10, which contributes to ensuring excellent design.

[0028] As described above, in this embodiment, when a relatively large impact load is applied to the impact absorbing member 20, the transmission part 30 comes into contact with the frame member 10 during the deformation of the impact absorbing member 20. This allows the applied impact load to be distributed between the impact absorbing member 20 and the frame member 10, and the colliding object (40) can be received in a manner that suppresses excessive deformation of the bumper. Therefore, according to this embodiment, the impact absorbing member 20 can more reliably suppress excessive deformation of the bumper.

[0029] Furthermore, in this embodiment, the impact absorbing member 20 is appropriately deformed from the rear bumper cover 5 side toward the skeletal member 10 side, so that the transmission part 30 provided on the impact absorbing member 20 can be more reliably applied to the skeletal member 10. In this embodiment, the transmission part 30 is provided on the inner surface of the impact absorbing member 20 according to the deformation mode of the impact absorbing member 20, so that the transmission part 30 can be more reliably applied to the skeletal member 10. In the impact absorbing member 20 of this embodiment, the transmission part 30 is provided so as to face the skeletal member 10 based on the state before deformation. This makes it possible to more reliably apply the transmission part 30 to the skeletal member 10 when the impact absorbing member 20 is deformed. In this embodiment, the impact load applied from the rear bumper cover 5 side is first received by the impact absorbing member 20, taking into consideration the rear lamp 8 (exterior member of the vehicle 2). In this embodiment, the load applied to the rear bumper cover 5 from the height direction of the vehicle 2 is received by the receiving part 230 of the impact absorbing member 20.

[0030] The impact absorbing structure of the vehicle bumper of this embodiment is not limited to the above-mentioned embodiment, and may take various other embodiments. In this embodiment, the configuration of the impact absorbing member is exemplified, but the configuration of the impact absorbing member is not limited. For example, the impact absorbing member can be provided on the main body as well as the corner portion of the rear bumper cover. The shape and inclination angle (θ) of the impact absorbing member can be appropriately set assuming an actual collision object and various collision tests. The upper wall portion serving as the receiving portion of the impact absorbing member can be formed into various shapes capable of supporting the absorber, and does not necessarily have to be flat, and does not necessarily have to be arranged completely horizontally. The impact absorbing member can also be configured so that the receiving portion directly receives the load applied to the bumper cover. The impact absorbing member may be provided with a lower wall portion so that the lower wall portion (receiving portion) can receive the load applied from the lower side in the height direction of the vehicle.

[0031] In addition, in this embodiment, the configuration of the transmission part is exemplified, but the configuration of the transmission part is not limited. The transmission part can be provided on at least one of the outer surface facing the outside of the vehicle and the inner surface on the opposite side, taking into consideration the deformation mode of the impact absorbing member, and may be provided on either of the left and right side wall parts if there are left and right side wall parts. For example, when the impact absorbing member to which an impact load is applied is deformed so as to tilt in the vehicle width direction or the vehicle height direction, the transmission part protruding from the outer surface of the impact absorbing member comes into contact with the skeletal member. In addition, the transmission part only needs to be contacted with the skeletal member during the process of the impact absorbing member being deformed, and does not necessarily need to face the skeletal member in a state in which no impact load is applied. In addition, the transmission part may be attached to the impact absorbing member later (may be separate), or may be formed as a part of the impact absorbing member (may be integrated). For example, a rib shape or a thick part (protruding part) can be provided on each side wall part of the impact absorbing member, and the protruding part can form the transmission part. The shape of the transmission part can also be changed as appropriate, and it can be formed of a hollow or dense columnar member in addition to a plate-like member.

[0032] The impact absorbing structure for a vehicle bumper can be provided at various positions on the vehicle, such as the rear and front of the vehicle. As the exterior member, various exterior members such as the rear lamp and the outer panel of the door can be assumed. If the exterior member does not protrude excessively to the outside of the vehicle, it is not necessary to consider the position of the exterior member when arranging the impact absorbing structure for a vehicle bumper. [Explanation of symbols]

[0033] 2 Vehicles 3 Door opening 4. Backdoor 5 Rear bumper cover (bumper cover of the present invention) 6 Main body 7 Corner section 70 (corner) top surface 71 (corner portion) rear surface (the outer end of the bumper cover of the present invention) 8 Rear lamp 9 Side Panel 10. Frame members 11 Side member 12 Cross member 20. Shock absorbing materials 20A (Shock absorbing member) Top side 20B (Shock absorbing member) bottom side 21 Left side wall 210 (left side wall) rear end 211 (Left wall) left flange 22 Right side wall 221 Right flange (right side wall) 23 Upper wall 230 Receiving part 25 Absorber 30 Transmission section 31 Contact part 32,33 Legs 40 Striker 60 Step Area

Claims

1. In an impact absorbing structure for a vehicle bumper, the vehicle outer side of a frame member is covered with a bumper cover, The frame member is provided with an impact absorbing member that absorbs an impact load applied from the bumper cover side to the frame member side by deforming, The shock absorbing member is provided with a transmission portion that transmits an impact load by coming into contact with the framework member midway in the deformation direction, The frame member is formed with a connection portion at which an end of a side member extending in a vehicle front-rear direction and an end of a cross member extending in a vehicle width direction are connected, The impact absorbing member protrudes from the connection point toward the bumper cover located on the outer side of the vehicle in the vehicle front-rear direction or the vehicle width direction, An exterior member is provided that protrudes toward the outside of the vehicle beyond the connection point, and the impact absorbing member protrudes toward the outside of the vehicle beyond the exterior member so that it can receive an impact load before the exterior member.

2. 2. The shock absorbing structure for a vehicle bumper according to claim 1, wherein the shock absorbing member is disposed between an end portion of the bumper cover on an outer side of the vehicle and the framework member.

3. 3. The shock absorbing structure for a vehicle bumper according to claim 1, wherein the transmission portion is provided on at least one of an outer surface of the shock absorbing member facing an outer side of the vehicle and an inner surface on the opposite side.

4. 4. The shock absorbing structure for a vehicle bumper according to claim 1, wherein the transmission portion is provided so as to face the framework member when no impact load is applied.

5. An impact absorbing structure for a vehicle bumper as described in any one of claims 1 to 4, wherein the impact absorbing member is provided with a receiving portion that can receive a load applied to the bumper cover from the height direction of the vehicle.

Images