WO2017208284A1

WO2017208284A1 - Impact absorbing structure for vehicles

Info

Publication number: WO2017208284A1
Application number: PCT/JP2016/002702
Authority: WO
Inventors: 竜太天野
Original assignee: 河西工業株式会社
Priority date: 2016-06-03
Filing date: 2016-06-03
Publication date: 2017-12-07
Also published as: JP6470877B2; JPWO2017208284A1

Abstract

Provided is an impact absorbing structure for vehicles, which is configured so that a damping member can be shared. A door trim (4) has a flat plate rib (22) raised from the rear surface of the door trim (4) in a direction intersecting a peripheral side wall (11). The flat plate rib (22) has a height based on the shape of the formed surface of the door trim (4) and corresponding to the gap between the rear surface of the door trim (4) and a pair of abutting sections (13, 14). The flat plate rib (22) is provided with sloped sides (23a, 24a) sloped relative to the direction in which a collision load is applied. The abutting section (13) and/or the abutting section (14) is adapted to be capable of abutting against the sloped side (23a, 24a).

Description

Shock absorption structure for vehicles

The present invention relates to a shock absorbing structure for a vehicle.

Conventionally, a structure in which a buffer member (vehicle buffer member) is disposed in a space between the vehicle body panel and the trim material is known as a countermeasure when a load is input from the outside of the vehicle to the vehicle body panel. For example, Patent Documents 1 to 3 disclose a structure that absorbs collision energy when a buffer member is crushed and deformed between a vehicle body panel and a trim material. This buffer member is a cylindrical structure with one end closed, and is attached to the back surface of the trim material with the other end portion (the end portion on the opening side) facing the back surface of the trim material. ing.

JP 2012-236439 A JP 2011-42332 A JP 2007-76411 A

However, since the trim material is shaped differently for each vehicle, such as the difference in the vehicle type, it is necessary to design the shape of the buffer member according to the shape of the trimmed material surface, and there is a disadvantage that the parts cannot be shared. is there. Further, when the shape of the buffer member is different, the absorption characteristics of the collision energy by the buffer member are different. Therefore, there is an inconvenience that the result of the performance test related to one shape of the buffer member cannot be directly transferred to another shape of the buffer member.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a shock absorbing structure for a vehicle in which a buffer member can be shared.

In order to solve such a problem, the present invention is arranged in a space between the trim material and the vehicle body panel that covers the vehicle body panel, and is collided by being crushed and deformed by receiving a collision load. A shock absorbing structure for a vehicle having a buffer member for absorbing energy is provided. In this case, the buffer member has a cylindrical peripheral side wall, an end wall that is connected to one end of the peripheral side wall, closes the one end, and a bifurcated shape at the end on the opening side of the peripheral side wall. And a pair of abutting portions projecting to the rear surface of the trim material with the pair of abutting portions facing the back surface of the trim material. The trim material is erected on the back surface of the trim material along the direction intersecting the peripheral side wall, and a gap between the back surface of the trim material and the pair of abutting portions is formed according to the shape of the trim material molding surface. It has a flat rib provided with the height corresponding to. The flat rib includes an inclined side that is inclined with respect to the input direction of the collision load, and at least one of the abutting portions can be abutted against the inclined side.

Here, in the present invention, it is preferable that a plurality of flat ribs are arranged along the opening shape of the peripheral side wall.

In the present invention, it is preferable that the trim material is provided with vertical wall-like ribs standing on the back surface of the trim material and extending along the opening shape of the peripheral side wall. In this case, it is desirable that the flat rib is integrally formed on the wall surface of the vertical wall-shaped rib, and the pair of abutting portions sandwich the tip of the vertical wall-shaped rib from both sides.

Further, in the present invention, the flat ribs are integrally formed on both sides of the wall surface of the vertical wall-shaped rib, and the inclined sides are set symmetrically with respect to the vertical wall-shaped rib as a boundary, so that the pair of abutting portions abut each other. It is desirable to make it possible.

According to the present invention, the cushioning member can be used for various trim materials, so that the parts can be shared.

FIG. 1 is a side view schematically showing a side door to which the vehicle impact absorbing structure according to the present embodiment is applied. FIG. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is a perspective view schematically showing the buffer pad. FIG. 4 is a perspective view schematically showing the rib structure. FIG. 5 is an explanatory diagram showing the relationship between the buffer pad and the rib structure. FIG. 6 is an explanatory view showing the relationship between the buffer pad and the rib structure. FIG. 7 is a cross-sectional view schematically showing a side door to which the vehicle impact absorbing structure is applied. FIG. 8 is an explanatory view showing the relationship between the buffer pad and the rib structure. FIG. 9 is an explanatory diagram showing the relationship between the buffer pad and the rib structure. FIG. 10 is an explanatory diagram showing the relationship between the buffer pad and the rib structure. FIG. 11 is an explanatory view showing the relationship between the buffer pad and the rib structure.

Hereinafter, the shock absorbing structure for a vehicle applied to the side door 1 of the automobile will be described. Here, FIG. 1 is a side view schematically showing a side door 1 to which the vehicle impact absorbing structure according to the present embodiment is applied, and FIG. 2 is a cross-sectional view taken along the line AA of FIG. FIG. 3 is a perspective view schematically showing the buffer pad 10. FIG. 4 is a perspective view schematically showing the rib structure 20.

The side door 1 is composed of a door outer panel 2 and a door inner panel 3 which are vehicle body panels. The door inner panel 3 constitutes a part of a wall surface panel of the vehicle interior, and a door trim 4 as a trim material is mounted on the vehicle interior side panel surface of the door inner panel 3.

The door trim 4 is formed by molding using an appropriate synthetic resin material, and a skin serving as a cushion and a cover is bonded to the side surface (surface) on the passenger compartment side. The door trim 4 is provided with a door armrest 5 at an intermediate portion in the vertical direction. Further, a door pocket 6 is formed in the door trim 4 at a position below the door armrest 5. Since the door trim 4 includes the door armrest 5, the door pocket 6, and the like, the modeling surface is not flat but has a shape that is rich in undulations. This modeling surface is designed to have a unique shape according to the type and model of the automobile.

A shock absorbing pad (buffer member) 10 having shock absorbing performance is disposed at a required position of the door trim 4, for example, a position corresponding to the waist of an occupant seated on a seat cushion (not shown).

The buffer pad 10 is a cylindrical structure with one end closed, and receives collision load F input to the side door 1 and collides in the axial direction when a vehicle collides with the collision energy. To absorb. The absorption characteristic of the collision energy by the buffer pad 10 is determined by the deformation stroke and the deformation reaction force in the axial direction of the buffer pad 10.

The buffer pad 10 includes a peripheral side wall 11, an end wall 12, a pair of

abutting portions

13 and 14, and a plurality of attachment pieces 15, and an appropriate synthetic resin material (elastomer resin or the like) is used. It is integrally formed by molding.

The peripheral side wall 11 has a cylindrical shape and is composed of a plurality of side walls 11a continuously provided in the circumferential direction. In the present embodiment, the peripheral side wall 11 has a rectangular tube shape in which a cross-sectional shape (opening shape) perpendicular to the axial direction is horizontally long, and includes four side walls 11a.

The peripheral side wall 11 is provided with a fold line 17 in which a fold portion continues in a ring shape along the circumferential direction. The broken line 17 is composed of an inwardly bent line 17a or an outwardly bent line 17b set on each side wall 11a. For example, an inward fold line 17a in which a fold portion protrudes radially inward is set on the side wall 11a corresponding to the longitudinal direction. On the other hand, on the side wall 11a corresponding to the short direction, an outward fold line 17b in which a fold portion protrudes radially outward is set. These

broken lines

17a and 17b are formed so as to be continuous with each other and make a round around the peripheral side wall 11.

When the collision load F is input, stress easily concentrates on the broken line 17, so that the side wall 11 a can be crushed and deformed from the broken line 17. At this time, the side wall 11a corresponding to the inward fold line 17a is easily deformed such that the fold portion is directed inward. On the other hand, the side wall 11a corresponding to the outward fold line 17b is easily deformed so that the fold portion is directed outward. Therefore, when the buffer pad 10 is crushed and deformed by the broken line 17, the collapsed state can be controlled.

In addition, it is also possible to set the outward broken line 17b for all the side walls 11a. However, there is also a side wall 11a in which there is not enough space around due to the convenience of the vehicle structure such as modeling of the vehicle body panel and seat adjustment lever. In this case, there is a possibility that the deformation stroke in the axial direction of the buffer pad 10 is hindered by the side wall 11a deformed outwardly interfering with another structure. Therefore, it is preferable to set an inward broken line 17a on the side wall 11a in such a place. In addition, there are cases where it is not desired to use the outward bent line 17b for the predetermined side wall 11a for reasons of appearance, performance, or manufacturing. In this case, the inward bent line 17a is set. It is preferable.

On the other hand, if the inward broken line 17a is set between a pair of side walls 11a adjacent to each other, the deformed side walls 11a may interfere with each other at the time of crushing deformation, and the axial deformation stroke may not be effectively secured. Therefore, it is preferable that an inward broken line 17a is set on one side wall 11a and an outward bent line 17b is set on the other side wall 11a in a pair of side walls 11a adjacent to each other. Thereby, the side wall 11a which adjoins at the time of crushing deformation | transformation can interfere, and the problem that the deformation stroke of the axial direction of the buffer pad 10 becomes small can be suppressed.

The end wall 12 is a plate-like member that closes one end (opening) of the peripheral side wall 11 and is connected to the one end. The end wall 12 has a flat surface shape and is designed to be parallel to the door inner panel 3. For this reason, when the collision load F is input, the door inner panel 3 can be received by the end wall 12 in a plane.

The pair of abutting

portions

13 and 14 are configured to project in a bifurcated manner at the end of the peripheral side wall 11 on the opening side. The pair of abutting

portions

13 and 14 are formed over the entire circumference of the opening of the peripheral side wall 11.

Among the pair of abutting

portions

13 and 14, one abutting portion 13 is constituted by a projecting end of the peripheral side wall 11 and a projecting end portion 11a1 including the vicinity thereof. The one or the other abutting portion 14 is extended by a flange piece that extends outward from the base end portion of the protruding end portion 11a1 of the peripheral side wall 11 and then bends and extends along the surface direction to the protruding end of the peripheral side wall 11. It is configured. A space portion is set between the pair of abutting

portions

13 and 14, and a width dimension larger than the plate thickness of the vertical wall-shaped rib 21 described later is set in the space portion.

The plurality of attachment pieces 15 are formed so as to project outward on the outer peripheral surface of the buffer pad 10, for example, the outer peripheral surface of the abutting portion 14 located on the outer side. For example, four attachment pieces 15 are provided corresponding to the four corners of the buffer pad 10 (the peripheral side wall 11).

The buffer pad 10 having such a configuration has the door inner panel 3 and the door trim 4 in a state where the axial direction of the peripheral side wall 11 coincides with the vehicle width direction (left-right direction), for example, the side wall 11a in the longitudinal direction is lowered forward. (See FIG. 1). In this case, the buffer pad 10 is attached to the back surface of the door trim 4 with the pair of abutting

portions

13 and 14 facing the back surface of the door trim 4.

By the way, the buffer pad 10 according to the present embodiment does not have a unique shape corresponding to the shape of the modeling surface of the door trim 4 to be attached. This is because the buffer pad 10 is designed as a shared shape for various door trims 4.

Therefore, in the present embodiment, the rib structure 20 is disposed at a portion corresponding to the buffer pad 10 on the back surface of the door trim 4. The rib structure 20 includes vertical wall-shaped ribs 21 and flat plate ribs 22, and is integrally formed on the back surface of the door trim 4. However, the rib structure 20 may be configured separately from the door trim 4 and attached to the door trim 4.

The vertical wall-shaped rib 21 is erected on the back surface of the door trim 4, and extends along the opening shape of the peripheral side wall 11. In the present embodiment, the vertical wall-shaped rib 21 is formed in an annular shape and extends over the entire circumference of the opening of the peripheral side wall 11. The vertical wall-shaped rib 21 includes four straight portions 21a corresponding to the side walls 11a and four corner portions 21b corresponding to the connecting portions of the side walls 11a.

The vertical wall-shaped rib 21 is not uniform in height (distance in the vertical direction with respect to the back surface of the door trim 4) at each position along the circumferential direction, and depends on the shape of the modeling surface of the door trim 4 Is set. Specifically, the height of the vertical wall-shaped rib 21 is set so that the tip of the vertical wall-shaped rib 21 enters the space portion of the pair of abutting

portions

13 and 14.

The flat rib 22 is erected on the back surface of the door trim 4 along the direction intersecting the peripheral side wall 11 (vertical wall-shaped rib 21). The flat rib 22 is composed of a pair of

rib pieces

23 and 24 which are integrally formed on both the inside and the outside with the vertical wall-shaped rib 21 as a boundary. Each of the

rib pieces

23 and 24 has a triangular shape, and two sides are connected to the wall surface of the vertical wall-shaped rib 21 and the back surface of the door trim 4. And the remaining piece is comprised as the

inclined sides

23a and 24a which incline from the vertical wall-shaped rib 21 to the back surface of the door trim 4. FIG.

A plurality of the plate ribs 22 are arranged along the opening shape of the peripheral side wall 11. Specifically, the flat plate ribs 22 are arranged corresponding to the four straight portions 21a, and each straight portion 21a is provided with a plurality of flat plate ribs 22 spaced apart from each other by a certain distance. Yes.

In the rib structure 20 having such a configuration, the height of each flat plate rib 22, that is, the height from the back surface of the door trim 4 to the apex of the flat plate rib 22, is the door trim 4 at the portion where the flat plate rib 22 is installed. Is set according to the shape of the modeling surface. Specifically, the height of the flat rib 22 corresponds to the distance between the back surface of the door trim 4 and the pair of abutting portions 13 and 14 (the tips thereof).

Due to the presence of the rib structure 20, the buffer pad 10 is attached to the back surface of the door trim 4 with the pair of abutting

portions

13 and 14 facing the rib structure 20.

As a method for attaching the buffer pad 10 to the door trim 4, for example, the following method can be used. First, a small-diameter mounting hole is formed in the mounting piece 15 of the buffer pad 10. On the other hand, on the back surface of the door trim 4, a mounting seat and a pin are integrally formed at a position corresponding to the mounting hole of the mounting piece 15. Then, the mounting holes of the mounting piece 15 are inserted into the individual pins, and the protruding ends of the pins are caulked. Thereby, the attachment piece 15 by the side of the buffer pad 10 and the attachment seat part by the side of the door trim 4 are couple | bonded.

In this attached state, the pair of abutting

portions

13 and 14 of the buffer pad 10 are in contact with or in close proximity to the rib structure 20 set on the back surface of the door trim 4. Under the present circumstances, the front-end | tip of the vertical wall-shaped rib 21 is accommodated in a space part so that it may be pinched | interposed from a both sides by a pair of abutting

parts

13 and 14. FIG. In addition, the tip ends of the pair of abutting

portions

13 and 14 are in contact with or close to the

inclined sides

23a and 24a of the individual flat plate ribs 22.

5 and 6 are explanatory diagrams showing the relationship between the buffer pad 10 and the rib structure 20. According to the impact absorbing structure for a vehicle having the above configuration, when the door inner panel 3 moves to the vehicle compartment side by the input of the collision load F, the end wall 12 of the buffer pad 10 receives the door inner panel 3 in a surface. Accordingly, when a collision load F is input to the end wall 12 along the axial direction of the buffer pad 10, the buffer pad 10 moves to the vehicle interior side, and the pair of abutting

portions

13, 14 are inclined to the flat ribs 22. It is received by the

sides

23a, 24a. At this time, due to the presence of the rib structure 20, the buffer pad 10 is received substantially evenly with respect to the back surface of the door trim 4.

In each side wall 11a forming the peripheral side wall 11, a broken line 17 is set. Therefore, the stress concentrates on the broken line 17 with the collision load F, and distortion occurs. And it buckles from the generation | occurrence | production location of a distortion, and each side wall 11a is crushed and deformed.

At this time, the side wall 11a in which the inward broken line 17a is set is deformed mainly by the inward bent line 17a so as to be recessed inward. Of the pair of abutting

portions

13 and 14 set on the opening side of the peripheral side wall 11, the abutting portion 13 located on the inner side strongly interferes with the rib structure 20. At this time, since the inner abutting portion 13 interferes with the inclined side 23 a located inside the vertical wall-shaped rib 21, the force input from the abutting portion 13 is appropriately received by the rib structure 20. Become.

Similarly, the side wall 11a in which the outward broken line 17b is set is deformed mainly by the outward bent line 17b so as to protrude outward. Of the pair of abutting

portions

13, 14 set on the opening side of the peripheral side wall 11, the abutting portion 14 located on the outside strongly interferes with the rib structure 20. At this time, since the outer abutting portion 14 interferes with the outer inclined side 24 a of the vertical wall-shaped rib 21, the force input from the abutting portion 14 is appropriately received by the rib structure 20.

Thereby, each side wall 11a forming the peripheral side wall 11 is crushed and deformed in an orderly manner, and the collision energy can be appropriately absorbed.

As described above, the vehicle impact absorbing structure of the present embodiment is disposed in the space between the door trim 4 and the door trim 4 and the door inner panel 3 that covers the door inner panel 3 and receives the collision load F. And a buffer pad 10 that absorbs collision energy by being deformed by crushing.

Here, the buffer pad 10 includes a cylindrical peripheral side wall 11, an end wall 12 that is connected to one end of the peripheral side wall 11 and closes the one end, and an end of the peripheral side wall 11 on the opening side. And a pair of abutting

portions

13 and 14 projecting in a bifurcated manner. The buffer pad 10 is attached to the back surface of the door trim 4 with the pair of abutting

portions

13 and 14 facing the back surface of the door trim 4.

Further, the door trim 4 has a flat rib 22 erected on the back surface of the door trim 4 along the direction intersecting the peripheral side wall 11. The flat rib 22 has a height corresponding to the gap between the rear surface of the door trim 4 and the pair of abutting

portions

13 and 14 according to the shape of the modeling surface of the door trim 4. The flat rib 22 includes

inclined sides

23a and 24a that are inclined with respect to the input direction of the collision load F, and at least one of the abutting

portions

13 and 14 of the pair of abutting

portions

13 and 14 is provided with the

inclined sides

23a and 24a. It can be abutted against 24a.

According to this configuration, the rib structure 20 is provided on the back surface of the door trim 4. The rib structure 20 can compensate for the gap between the back surface of the door trim 4 and the end of the buffer pad 10 on the opening side. Thereby, it is not necessary to design the buffer pad 10 as a unique shape corresponding to the shape of the modeling surface of the door trim 4 to be attached. Therefore, the buffer pad 10 having the shape shown in FIG. 2 can be applied to the door trim 4 (see FIG. 7) having a different shape only by changing the specifications of the rib structure 20. Thereby, since the buffer pad 10 can be used with respect to various door trims 4, it is possible to share parts. Furthermore, the complexity of performing a performance test for each buffer pad 10 having a different shape can be reduced.

In addition, since the end of the cushion pad 10 on the opening side is appropriately received by the door trim 4 via the rib structure 20, the collision load F is uniformly input. Therefore, each side wall 11a that forms the peripheral side wall 11 is crushed and deformed in an orderly manner, so that collision energy can be absorbed appropriately.

In the present embodiment, a plurality of the plate ribs 22 are arranged along the opening shape of the peripheral side wall 11.

According to this configuration, since the plurality of flat plate ribs 22 receive the entire area of the buffer pad 10, the collision load F is input evenly. Thereby, each side wall 11a which makes the surrounding side wall 11 will orderly crush and deform | transform, and collision energy can be absorbed appropriately.

Further, in the present embodiment, the door trim 4 is provided with vertical wall-like ribs 21 that are provided upright on the back surface of the door trim 4 and extend along the opening shape of the peripheral side wall 11. Here, the flat rib 22 is integrally formed on the wall surface of the vertical wall-shaped rib 21. The pair of abutting

portions

13 and 14 sandwich the tip of the vertical wall-shaped rib 21 from both sides.

According to this configuration, the rigidity of the flat rib 22 can be increased. Accordingly, the flat rib 22 is prevented from collapsing when the pair of abutting

portions

13 and 14 abut against each other, and the force input from the pair of abutting

portions

13 and 14 can be appropriately received. As a result, each side wall 11a forming the peripheral side wall 11 is neatly crushed and deformed, and the collision energy can be absorbed appropriately.

Moreover, since the vertical wall-shaped rib 21 is clamped by the pair of abutting

portions

13 and 14, when the collision load F is input, the end portion on the opening side of the buffer pad 10 does not escape along the

inclined sides

23a and 24a. This can be properly received by the rib structure 20. Thereby, collision energy can be absorbed appropriately.

Furthermore, in this embodiment, the flat plate rib 22 is integrally formed on both sides of the wall surface of the vertical wall-shaped rib 21. The

inclined sides

23a and 24a are set symmetrically with the vertical wall-shaped rib 21 as a boundary so that the pair of abutting

portions

13 and 14 can be brought into contact with each other.

According to this configuration, even if it is not known which of the inner abutting portion 13 and the outer abutting portion 14 mainly interferes with the rib structure 20, one of the two

inclined sides

23 a and 24 a. As a result, the abutting

portions

13 and 4 are received. Therefore, it is possible to appropriately cope with any form of crushing deformation. As a result, each side wall 11a forming the peripheral side wall 11 is neatly crushed and deformed, and the collision energy can be absorbed appropriately.

Hereinafter, another aspect of the rib structure 20 will be described with reference to FIGS. 8 to 11.

First, in the example shown in FIG. 8, the flat plate rib 22 of the rib structure 20 is configured by only the inner rib piece 23 or the outer rib piece 24. For example, when the collision load F is input, the deformation direction of the side wall 11a can be controlled by the setting of the broken line 17 and the surface shape of the side wall 11a.

For example, as shown in FIG. 8A, when the deformation direction of the side wall 11a is controlled so as to be recessed inward, the abutting portion 13 positioned on the inside strongly interferes with the rib structure 20. In this case, the abutting portion 13 can be received only by setting the inner rib piece 23 (inclined side 23 a) with respect to the vertical wall-shaped rib 21.

On the other hand, as shown in FIG. 8B, when the deformation direction of the side wall 11a is controlled so as to protrude outward, the abutting portion 14 positioned on the outer side strongly interferes with the rib structure 20. In this case, the abutting portion 14 can be received only by setting the outer rib piece 24 (the inclined side 24a) with respect to the vertical wall-shaped rib 21.

Next, in the example shown in FIG. 9, the

inclined sides

23 a and 24 a of the flat plate rib 22 are not set in the entire area from the vertical wall-shaped rib 21 to the back surface of the door trim 4, and are connected to the vertical wall-shaped rib 21. It is set only for the part to be performed. As described above, the

inclined sides

23a and 24a may be set in a limited range within a range in which the pair of abutting

portions

13 and 14 abut.

Further, in the example shown in FIG. 10, the

inclined sides

23 a and 24 a of the flat plate rib 22 are set in a shape that is inclined upward from the vertical wall-shaped rib 21. In the example described above, the

inclined sides

23a and 24a are set to have a downward inclination starting from the vertical wall-shaped rib 21, but the inclination direction may be reversed.

Further, in the example shown in FIG. 11, the rib structure 20 is configured by only the flat plate rib 22 provided with the

inclined sides

23 a and 24 a on which the pair of abutting

portions

13 and 14 substantially abut without providing the vertical wall-shaped rib 21. Has been. In this case, in order to increase the rigidity of the flat plate rib 22, it is preferable to set the plate thickness of the flat plate rib 22 larger than that in the case where the vertical wall-shaped rib 21 is provided. In addition, when the rib structure 20 is comprised only with the flat plate rib 22, the form as shown in FIGS. 8-10 may be sufficient as the form of the flat plate rib 22. FIG.

Further, in the present embodiment, the pair of abutting

portions

13 and 14 and the rib structure 20 set in the buffer pad 10 are set over the entire area along the opening shape of the buffer pad 10. However, the pair of abutting

portions

13 and 14 and the rib structure 20 may be set to be limited to only a portion that compensates for a gap between the back surface of the door trim 4 and the opening side end portion of the buffer pad 10. .

As mentioned above, although the impact absorption structure for vehicles of this embodiment was demonstrated, this invention is not limited to this embodiment, A various change is possible in the range of the invention. In the present embodiment, the vehicle shock absorbing structure is applied to the side door, but the vehicle shock absorbing structure according to the present invention can also be applied to portions other than the side door.

DESCRIPTION OF SYMBOLS 1 Side door 2 Door outer panel 3 Door inner panel 4 Door trim 10 Buffer pad 11 Peripheral side wall 12 End wall 13 Abutting part 14 Abutting part 20 Rib structure 21 Vertical wall-shaped rib 22 Flat plate rib 23 Rib piece 23a Inclined side 24 Rib piece 24a Inclined side

Claims

Trim material to be installed over the body panel,
A shock absorbing structure for a vehicle having a buffer member that is disposed in a space portion between the trim material and the vehicle body panel and absorbs a collision energy by receiving a collision load to be crushed and deformed,
The buffer member is
A cylindrical peripheral side wall;
An end wall connected to one end of the peripheral side wall to close the one end; and
A pair of abutting portions projecting in a bifurcated manner at the end of the peripheral side wall on the opening side,
With the pair of abutting portions facing the back surface of the trim material, it is attached to the back surface of the trim material,
The trim material is
While standing on the back surface of the trim material along the direction intersecting the peripheral side wall, depending on the shape of the modeling surface of the trim material, between the back surface of the trim material and the pair of abutting portions Having a flat rib with a height corresponding to the gap;
The flat plate rib includes an inclined side inclined with respect to an input direction of a collision load, and at least one of the abutting portions can be abutted against the inclined side. Shock absorption structure.
2. The vehicle impact absorbing structure according to claim 1, wherein a plurality of the flat ribs are arranged along the opening shape of the peripheral side wall.
The trim material is provided on the back surface of the trim material, and includes a vertical wall-shaped rib extending along the opening shape of the peripheral side wall,
The flat plate rib is integrally formed on the wall surface of the vertical wall-shaped rib,
The impact absorbing structure for a vehicle according to claim 2, wherein the pair of abutting portions sandwich the tip of the vertical wall-shaped rib from both sides.
The flat plate ribs are integrally formed on both sides of the wall surface of the vertical wall-shaped rib,
The vehicular shock absorbing structure according to claim 3, wherein the inclined sides are set symmetrically with respect to the vertical wall-shaped rib as a boundary so that the pair of abutting portions can be brought into contact with each other.