JP6777871B2 - Trims for shock absorbers and vehicle doors with shock absorbers - Google Patents

Description

The present invention relates to a shock absorber arranged between the body panel and the trim.

It is known that a shock absorber is arranged between a door panel and a door trim that covers the side surface of the passenger compartment of the door panel in order to reduce the impact applied to an occupant from the door panel at the time of a side collision in an automobile door. In such a shock absorber, a resin square cylinder extending from the door trim toward the door panel is gradually narrowed toward the door panel to form a stepped shape (for example, Patent Documents 1 and 2). ). In such a shock absorber, each stage is deformed stepwise according to the displacement (deformation amount), so that a rapid increase in load (reaction force) is suppressed. In addition, the deformation stroke of the shock absorber can be lengthened.

Japanese Patent No. 3644582 Japanese Unexamined Patent Publication No. 7-315076

Such a stepped shock absorber is easily deformed because the width of the step on the tip side is narrower than that on the step on the base end side. Therefore, the step on the tip side is deformed in the initial stage of deformation, and the step on the base end side is deformed in the later stage of deformation. As a result, a peak of the load due to the deformation of each stage is generated, and the load fluctuates according to the amount of deformation of the shock absorber. Further, since the step on the base end side requires a large load for deformation, there is a problem that the load (reaction force) becomes large in the latter stage of deformation, and the load is easily transmitted to the occupant.

In view of the above background, it is an object of the present invention to suppress the fluctuation of the load at the time of deformation and the increase of the load at the later stage of the deformation in the shock absorber.

In order to solve the above problems, one aspect of the present invention is a shock absorber (10) arranged between the vehicle body panel (2) and the trim (3) covering the inner surface of the vehicle body panel. Adjacent to at least three or more tubular vertical wall portions (11) arranged along a predetermined axis (A) extending from the vehicle body panel toward the trim and offset from each other in the direction of the axis. It has a plurality of horizontal wall portions (12) connecting the edge portions of the vertical wall portions, and the width of the three or more vertical wall portions is narrower as the one arranged on one side of the axis line, and the width of the vertical wall portions is narrower. Each is formed in a substantially flat surface, substantially orthogonal to the axis line, and penetrates in the thickness direction at an appropriate position of the side wall portion arranged on the other side of the axis line to adjust the rigidity of the side wall portion (adjustment hole). 20) is formed.

According to this aspect, the adjustment hole reduces the area of the lateral wall portion arranged on the other side of the axis, and reduces the rigidity. As a result, the rigidity of each side wall portion approaches each other, and the deformation start time of each side wall portion when the impact absorber receives a load approaches. As a result, the peak of the load (reaction force) caused by the deformation of each side wall portion is blunted, and the fluctuation of the reaction force generated by the shock absorber is suppressed.

Further, in the above aspect, when viewed from the direction along the axis, it is preferable that the areas of the portions of the lateral wall portion excluding the adjustment hole are set to be equal to each other. Alternatively, in the above aspect, when viewed from the direction along the axis, the lengths of the portions of the side wall portion other than the adjustment hole in the circumferential direction around the axis are set to be equal to each other. It is good.

According to these aspects, the rigidity of each side wall portion becomes substantially equal, and when the shock absorber receives a load, each side wall portion starts to deform substantially at the same time.

Further, in the above aspect, it is preferable that the widths of the lateral wall portions in the direction orthogonal to the axis are set to be equal to each other.

According to this aspect, the amount of deformation of each stage of the shock absorber becomes substantially uniform.

Further, in the above aspect, it is preferable that each of the vertical wall portions has the same length along the axial direction.

According to this aspect, the load difference applied to each vertical wall portion can be reduced.

Further, in the above aspect, the cross section of each of the vertical wall portions orthogonal to the axis is formed in a quadrangle, and each of the horizontal wall portions is formed in a quadrangular frame shape when viewed from the direction along the axis. The adjusting hole may be formed at the center of each side (18) of the frame shape of the lateral wall portion.

According to this aspect, when the area of the lateral wall portion on one side of the axis and the lateral wall portion on the other side of the axis are substantially equal, the rigidity of each lateral wall portion becomes substantially equal, and the load when each lateral wall portion is deformed is applied. Approximately equal.

Further, in the above aspect, the vertical wall portion has a first vertical wall portion (11A), a second vertical wall portion (11B), and a third vertical wall portion (11C) in this order from one side of the axis. The horizontal wall portion includes a first horizontal wall portion (12A) provided between the first vertical wall portion and the second vertical wall portion, and the second vertical wall portion and the third vertical wall portion. It is preferable that the adjustment hole has a second lateral wall portion (12B) provided between them, and the adjusting hole is formed in the second lateral wall portion.

According to this aspect, the area of the second lateral wall portion is reduced by the adjusting hole, and the rigidity of the second lateral wall portion approaches the rigidity of the first lateral wall portion. Therefore, the deformation start time of the second lateral wall portion and the first lateral wall portion is set. Get closer to each other.

Further, in the above aspect, the adjustment hole has a rectangular cross section, one of the long sides is along the edge of the second vertical wall, and the other of the long side is the edge of the third vertical wall. It is good to follow.

According to this aspect, since the adjusting hole is arranged so as to divide the second lateral wall portion, the rigidity of the second lateral wall portion can be appropriately reduced.

Further, in the above aspect, it is preferable that the opening on one side of the vertical wall portion arranged on the onemost side in the direction of the axis is closed by the plate-shaped lid portion (13).

According to this aspect, the shock absorber can be reliably in contact with the vehicle body panel or trim at the lid.

Further, in the above aspect, the vertical wall portion arranged on the other side in the direction of the axis is provided with a connecting portion (22) bonded to one of the vehicle body panel and the trim. Good.

According to this aspect, the shock absorbing member can be held in an appropriate position.

Further, in the above aspect, the cross section of the vertical wall portion orthogonal to the axis is formed in a quadrangle, and each of the horizontal wall portions is formed in a quadrangular frame shape when viewed from the direction along the axis. The adjusting hole may be formed at a frame-shaped corner portion of the lateral wall portion.

According to this aspect, the effect of reducing the rigidity of the lateral wall portion per unit area of the adjusting hole is increased. As a result, the area of the adjusting hole can be reduced when the rigidity of the lateral wall portion is reduced by a predetermined value.

According to the above configuration, in the shock absorber, it is possible to suppress the fluctuation of the load at the time of deformation and the increase of the load at the later stage of the deformation.

Side view showing a front door to which the shock absorber according to the first embodiment is applied. II-II sectional view of FIG. Perspective view of the shock absorber according to the first embodiment Top view of the shock absorber according to the first embodiment Explanatory drawing which shows the deformation mode of the shock absorber which concerns on 1st Embodiment Graph showing the load characteristics of the shock absorber according to the first embodiment Perspective view of the shock absorber according to the second embodiment

Hereinafter, an embodiment in which the shock absorber according to the present invention is applied to the door of the right front seat of an automobile will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the door 1 of the right front seat of an automobile has a door panel 2 and a door trim 3 (garnish) provided so as to cover the inner side surface of the door panel 2. The door panel 2 has an inner panel 2A and an outer panel 2B formed of a steel plate. The inner panel 2A is arranged inside the vehicle (inside the vehicle interior) of the outer panel 2B forming the outer surface of the vehicle body. The inner panel 2A and the outer panel 2B are connected to the outer panel 2B at the leading edge, the lower edge, and the trailing edge except for the upper edge, and form a space 2C in the central portion. A window glass and an elevating device thereof are arranged in the space 2C between the inner panel 2A and the outer panel 2B. The window glass moves up and down through an opening formed between the upper edges of the inner panel 2A and the outer panel 2B.

The door trim 3 is made of a resin material. The door trim 3 has a main body portion 3A arranged inside the vehicle of the inner panel 2A with the main surface facing left and right, and an edge portion 3B protruding from the peripheral edge of the main body portion 3A toward the inner panel 2A and abutting on the inner panel 2A. Have. The main body 3A has an armrest portion 3C protruding inward in the vehicle in the central portion in the vertical direction, a rear lower side wall portion 3D arranged below the rear portion of the armrest portion 3C, and a rear lower side wall portion 3D below the armrest portion 3C. It has a pocket portion 3E arranged in front of the.

The rear lower side wall portion 3D is arranged below the rear portion of the main body portion 3A. The rear lower side wall portion 3D is formed in a flat plate shape, and is arranged away from the inner panel 2A so as to face the vehicle interior side surface of the inner panel 2A via the space 6. The rear lower side wall portion 3D and the inner panel 2A are arranged so that their surfaces face left and right and are parallel to each other. A shock absorber 10 is arranged in the space 6. The shock absorber 10 may be supported by either the door trim 3 or the inner panel 2A, but in the present embodiment, the shock absorber 10 is mounted on the vehicle outer surface (the surface facing the inner panel 2A side) of the rear lower side wall portion 3D. It is supported.

The shock absorber 10 is made of a resin material such as polypropylene and is formed by a known molding method such as injection molding. As shown in FIGS. 3 and 4, the shock absorber 10 has a predetermined axis A, and is arranged along the axis A and deviated from each other in the direction of the axis A. It has a wall portion 11 and a plurality of horizontal wall portions 12 that connect the edges of adjacent vertical wall portions 11, and the vertical wall portion 11 is arranged on the tip side, which is one side of the axis A, the axis A. It is formed to be narrower than the one arranged on the base end side, which is the other side. That is, it can be said that the shock absorber 10 is a stepped (pyramid-shaped) tubular member whose width gradually narrows toward the tip side.

In the present embodiment, the shock absorber 10 has three vertical wall portions 11 in order from the tip side, that is, a first vertical wall portion 11A, a second vertical wall portion 11B, and a third vertical wall portion 11C, and the first vertical wall portion 11 With the first horizontal wall portion 12A between the wall portion 11A and the second vertical wall portion 11B, and the two horizontal wall portions 12 of the second horizontal wall portion 12B between the second vertical wall portion 11B and the third vertical wall portion 11C. Have. The end portion of the first vertical wall portion 11A on the tip end side is closed by a plate-shaped lid portion 13. The shock absorber 10 includes a first stage 15 composed of a first vertical wall portion 11A and a lid portion 13, a second stage 16 composed of a second vertical wall portion 11B and a first horizontal wall portion 12A, and a third stage. It has a third stage 17 composed of a vertical wall portion 11C and a second horizontal wall portion 12B.

Each of the outer shapes of the cross sections (cross sections orthogonal to the axis A) of the first to third vertical wall portions 11A to 11C is formed in a similar shape. In the present embodiment, the outer shape of the cross section of the first to third vertical wall portions 11A to 11C is formed in a square shape. The first to third vertical wall portions 11A to 11C are arranged coaxially, and their corners are arranged so as to correspond to each other. The heights (lengths in the direction along the axis A) of the first to third vertical wall portions 11A to 11C are set to be equal to each other.

The wall thicknesses of the first to third vertical wall portions 11A to 11C are set to be equal to each other. Each of the first to third vertical wall portions 11A to 11C is slightly inclined in the direction in which the tip end side approaches the axis A with respect to the base end side. The inclination angles of the first to third vertical wall portions 11A to 11C with respect to the axis A are set to be equal to each other. In another embodiment, the inclination angle of the first to third vertical wall portions 11A to 11C with respect to the axis A may be 0 ° (the first to third vertical wall portions 11A to 11C and the axis A are parallel). ..

The first horizontal wall portion 12A is formed in a quadrangular frame shape centered on the axis A so as to connect the base end side edge of the first vertical wall portion 11A and the tip end side edge of the second vertical wall portion 11B. There is. Similarly, the second horizontal wall portion 12B has a quadrangular frame shape centered on the axis A so as to connect the base end side edge of the second vertical wall portion 11B and the tip end side edge of the third vertical wall portion 11C. It is formed. The wall thickness of the first horizontal wall portion 12A and the second horizontal wall portion 12B is set to be equal to the wall thickness of the first to third vertical wall portions 11A to 11C. The surfaces of the first lateral wall portion 12A and the second lateral wall portion 12B facing the tip end side are formed in a flat surface. In another embodiment, the surfaces of the first lateral wall portion 12A and the second lateral wall portion 12B facing the tip end side may be inclined so that the inner edge side projects toward the tip end side with respect to the outer edge side.

As shown in FIG. 4, the width W1 of the first horizontal wall portion 12A (the distance between the outer surface of the base end side edge of the first vertical wall portion 11A and the inner surface of the tip end side edge of the second vertical wall portion 11B) is a corner portion. It is formed to a certain length except for. Similarly, the width W2 of the second horizontal wall portion 12B (distance between the outer surface of the base end side edge of the second vertical wall portion 11B and the inner surface of the tip end side edge of the third vertical wall portion 11C) is constant except for the corners. It is formed to the length of. In the present embodiment, the width W1 of the first horizontal wall portion 12A and the width W2 of the second horizontal wall portion 12B are set to be equal to each other.

As shown in FIGS. 3 and 4, each of the central portions in the longitudinal direction of the four linear side portions 18 forming the quadrangular frame shape of the second lateral wall portion 12B is in the thickness direction (parallel to the axis A). An adjustment hole 20 penetrating in the direction) is formed. The adjusting hole 20 is formed for the purpose of reducing the area of the second lateral wall portion 12B as viewed from the tip side and reducing the rigidity of the second lateral wall portion 12B. Each adjustment hole 20 is formed in a rectangular shape extending along the longitudinal direction of each side portion 18. The hole edge corresponding to one of the long sides of the rectangle in the adjustment hole 20 extends along the proximal end side edge of the outer surface of the second vertical wall portion 11B, and the hole edge corresponding to the other long side extends along the base end side edge of the second vertical wall portion 11B. Extends along the distal edge of the inner surface of the. The four adjusting holes 20 are formed in the same shape as each other.

As shown in FIG. 4, when viewed from the tip side, all the areas S2 of the second horizontal wall portion 12B excluding all the adjusting holes 20 and the area S1 of the first horizontal wall portion 12A are equal to each other. The size of the adjusting hole 20 is set. When viewed from the tip side, the area S1 of the first horizontal wall portion 12A means the area of the portion that does not overlap with the first vertical wall portion 11A and the second vertical wall portion 11B, and the area S2 of the second horizontal wall portion 12B is the second. The area of the portion that does not overlap with the vertical wall portion 11B and the third vertical wall portion 11C.

Further, when viewed from the tip side, the length (perimeter) L2 in the circumferential direction about the axis A of the second side wall portion 12B excluding all the adjusting holes 20 and the axis A of the first side wall portion 12A The sizes of all the adjusting holes 20 are set so that the length (peripheral length) L1 in the circumferential direction about the center is equal to each other. When viewed from the tip side, the peripheral length L1 of the first horizontal wall portion 12A is the length passing through the center of the width W1 of the first horizontal wall portion 12A, and the peripheral length L2 of the second horizontal wall portion 12B is the first horizontal wall. It is the length passing through the center of the width W2 of the portion 12A, and is the total length of each portion divided by the adjusting hole 20.

A connecting portion 22 is provided on the base end side edge of the third vertical wall portion 11C in a direction orthogonal to the axis A and projecting outward from the third vertical wall portion 11C. The connecting portion 22 is formed in a flat plate shape orthogonal to the axis A. In the present embodiment, the connecting portion 22 is formed in an annular shape along the base end side edge of the third vertical wall portion 11C.

The shock absorber 10 is coupled to the vehicle outer surface of the rear lower side wall portion 3D at the coupling portion 22. The bonding portion 22 and the rear lower side wall portion 3D may be bonded by bonding with an adhesive, double-sided tape, or the like, fastening with screws, locking with locking claws, or the like. With the shock absorber 10 coupled to the rear lower side wall portion 3D, the axis A extends so as to be orthogonal to the vehicle outer surface of the rear lower side wall portion 3D and the vehicle inner surface of the inner panel 2A. In the present embodiment, the shock absorber 10 is in contact with the vehicle interior side surface of the inner panel 2A at the lid portion 13. In another embodiment, the lid portion 13 may be arranged so as to face the inner side surface of the inner panel 2A via a gap.

With reference to FIG. 5, a deformation mode of the shock absorber 10 when a load is applied from the axis A direction will be described. When the door 1 is moved to the inside of the vehicle by the side collision of the vehicle and the shock absorber 10 is compressed from the axis A direction between the door 1 and the occupant, as shown in FIG. 5 (B), the first first The horizontal wall portion 12A and the second horizontal wall portion 12B are deformed, and the first vertical wall portion 11A and the second vertical wall portion 11B move to the base end side. At this time, since the rigidity of the second side wall portion 12B and the first side wall portion 12A is substantially equal due to the adjusting hole 20, the first side wall portion 12A and the second side wall portion 12B start to be deformed substantially at the same time. At this time, the load is absorbed by the deformation of the first horizontal wall portion 12A and the second horizontal wall portion 12B, respectively. As shown in FIG. 5C, the deformation of the first horizontal wall portion 12A and the second horizontal wall portion 12B is such that the first vertical wall portion 11A, the second vertical wall portion 11B, and the third vertical wall portion 11C substantially overlap. It ends at that point. After that, the first vertical wall portion 11A, the second vertical wall portion 11B, and the third vertical wall portion 11C are compressed and deformed to further absorb the load.

In the shock absorber 10 according to the present embodiment, since the first lateral wall portion 12A and the second lateral wall portion 12B are deformed substantially at the same time, the characteristic of the load (reaction force) with respect to the displacement amount is the curve 100 (solid line) of FIG. )become that way. For comparison, the load characteristics with respect to the displacement amount of the comparative example in which only the adjusting hole 20 is omitted from the shock absorber 10 according to the present embodiment are shown as a curve 101 (broken line) in FIG. On the curve 101, two peaks are confirmed, and it is confirmed that the load (reaction force) fluctuates with respect to the displacement. This is because the rigidity of the second lateral wall portion 12B is higher than the rigidity of the first lateral wall portion 12A because there is no adjusting hole 20 in the comparative example. Therefore, in the shock absorbing structure according to the comparative example, when a collision load is applied, the first horizontal wall portion 12A is first deformed and the first vertical wall portion 11A moves to the proximal end side, and the second horizontal wall portion is delayed. 12B is deformed and the second vertical wall portion 11B moves to the base end side. Further, since the rigidity of the second horizontal wall portion 12B is higher than that of the first horizontal wall portion 12A, a relatively large load (reaction force) is generated when the second horizontal wall portion 12B is deformed.

In the shock absorber 10 according to the present embodiment, the rigidity of the first lateral wall portion 12A and the second lateral wall portion 12B are substantially equal due to the adjusting holes 20, and the impact absorber 10 deforms substantially at the same time when a load is applied, so that there are a plurality of peaks. The formation is suppressed and the reaction force is stable. Further, a large reaction force is not generated when the second lateral wall portion 12B is deformed.

The shock absorber 10 has an adjusting hole 20 arranged in the center of each side portion, and is formed in a rotationally symmetric shape centered on the axis A. Therefore, when a load is received from the direction along the axis A, the deformation can be stably performed in the direction A.

(Second Embodiment)
The shock absorber 30 according to the second embodiment will be described with reference to FIG. 7. The shock absorber 30 has the same configuration as the shock absorber 10 according to the first embodiment except for the shape and position of the adjusting hole 20. In the shock absorber 30, the same reference numerals are given to the same configurations as those of the shock absorber 10, and the description thereof will be omitted.

As shown in FIG. 7, in the shock absorber 30, the adjusting holes 20 are arranged at each corner of the quadrangular frame of the second side wall portion 12B. When the second lateral wall portion 12B is deformed to the proximal end side by receiving a load, tension is generated at the corner portion. Therefore, by providing the adjusting hole 20 at the corner portion, the rigidity can be significantly reduced as compared with the case where the adjusting hole 20 is provided at another portion.

As the shape of each adjusting hole 20, various shapes such as a square and a rectangle can be adopted, but in the present embodiment, the shape is L-shaped. Each of the L-shaped adjusting holes 20 is arranged along the base end side edge of the corner portion 32 of the second vertical wall portion 11B. As a result, the base end side edge of the corner portion 31 of the second vertical wall portion 11B does not connect to the second horizontal wall portion 12B and becomes a free end.

Although the description of the specific embodiment is completed above, the present invention can be widely modified without being limited to the above embodiment. For example, various materials can be applied to the material of the shock absorber 10. The shock absorber 10 may be formed of, for example, metal. In this case, the shock absorber 10 may be formed by drawing or combining a plurality of members by welding or the like.

The number of steps of the shock absorber 10 (the number of vertical wall portions 11) may be arbitrarily changed within a range of 3 or more. In this case, the adjusting hole 20 may be provided in the lateral wall portion 12 of the second and subsequent steps (steps on the base end side).
Further, the outer shape of the cross section of each vertical wall portion 11 is not limited to a square shape, and may be various shapes such as a rectangle, a polygon, a circle, an ellipse, and a star. Further, the wall thickness of each vertical wall portion 11 and each horizontal wall portion 12 can be arbitrarily set. The wall thicknesses of the vertical wall portions 11 and the horizontal wall portions 12 may be set to be equal to each other or different from each other.

The shock absorber 10 includes not only between the door panel 2 (inner panel 2A) and the door trim 3, but also side panels constituting the side parts of the passenger compartment and the luggage room, and trims provided on the passenger compartment side of the side panels. It can be placed in various spaces such as between.

1: Door 2: Door panel 2A: Inner panel 2B: Outer panel 3: Door trim 3D: Rear lower side wall portion 10, 30: Shock absorber 11: Vertical wall portion 11A: First vertical wall portion 11B: Second vertical wall portion 11C: 3rd vertical wall portion 12: horizontal wall portion 12A: 1st horizontal wall portion 12B: 2nd horizontal wall portion 13: lid portion 18: side portion 31: corner portion A: axis

Claims (10)

A shock absorber arranged between the vehicle body panel and the trim covering the inner surface of the vehicle body panel.
At least three or more tubular vertical wall portions arranged along a predetermined axis extending from the vehicle body panel toward the trim and deviating from each other in the direction of the axis.
It has a plurality of horizontal wall portions that connect the edges of the vertical wall portions that are adjacent to each other.
The width of the three or more vertical wall portions is narrower as the vertical wall portion is arranged on the vehicle body panel side of the axis line.
Each of the side wall portions is formed in a substantially flat surface and is substantially orthogonal to the axis line.
An adjustment hole that penetrates in the thickness direction and adjusts the rigidity of the lateral wall portion is formed at an appropriate position of the lateral wall portion arranged on the trim side of the axis.
Each of the side edges of the adjustment hole is arranged along the respective side edge of the adjacent vertical wall portion.
The body panel has an outer panel and an inner panel.
Each of the side wall portions is a shock absorber facing the inner panel. The vertical wall portion has a first vertical wall portion, a second vertical wall portion, and a third vertical wall portion in this order from the vehicle body panel side of the axis line.
The horizontal wall portion is provided between the first horizontal wall portion provided between the first vertical wall portion and the second vertical wall portion, and between the second vertical wall portion and the third vertical wall portion. Has a second side wall
The shock absorber according to claim 1, wherein the adjusting hole is formed in the second lateral wall portion. The cross section of each of the vertical wall portions orthogonal to the axis is formed into a quadrangle.
Each of the side wall portions is formed in a quadrangular frame shape when viewed from the direction along the axis.
The shock absorber according to claim 2, wherein the length of the adjusting hole is shorter than the length of one side of the second vertical wall portion. A shock absorber arranged between the vehicle body panel and the trim covering the inner surface of the vehicle body panel.
At least three or more tubular vertical wall portions arranged along a predetermined axis extending from the vehicle body panel toward the trim and deviating from each other in the direction of the axis.
It has a plurality of horizontal wall portions that connect the edges of the vertical wall portions that are adjacent to each other.
The width of the three or more vertical wall portions is narrower as they are arranged on one side of the axis line.
Each of the side wall portions is formed in a substantially flat surface and is substantially orthogonal to the axis line.
An adjustment hole that penetrates in the thickness direction and adjusts the rigidity of the lateral wall portion is formed at an appropriate position of the lateral wall portion arranged on the other side of the axis.
The body panel has an outer panel and an inner panel.
Each of the side wall portions faces the inner panel and
The cross section of each of the vertical wall portions orthogonal to the axis is formed into a quadrangle.
Each of the side wall portions is formed in a quadrangular frame shape when viewed from the direction along the axis.
The adjusting hole is a shock absorber formed in an L shape at a corner of the frame shape of the lateral wall portion. The trim includes an armrest portion protruding inward in the vehicle at the center portion in the vertical direction of the trim, a rear lower side wall portion arranged below the rear portion of the armrest portion, and a rear lower side wall portion below the armrest portion and the rear lower side wall portion. Has a front-arranged pocket and
The shock absorber according to any one of claims 1 to 4 , wherein each of the side wall portions faces the rear lower side wall portion. The shock absorber according to claim 5 , wherein the adjusting hole is arranged between the inner panel and the rear lower side wall portion. The shock absorber according to any one of claims 1 to 6 , wherein the vertical wall portions overlap each other when deformed by receiving a load from a direction along the axis. The shock absorber according to any one of claims 1 to 7, which is formed in a rotationally symmetric shape about the axis. The shock absorber according to claim 5 , wherein the opening direction of the pocket portion and the opening direction of the adjusting hole are different. A trim for a vehicle door comprising the shock absorber according to any one of claims 1 to 9 .

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