JP2018015927A - Method for producing impact absorbing body for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing an impact absorbing body for vehicle which can easily achieve desired impact absorption performance at low cost.SOLUTION: A method for producing an impact absorbing body includes: a first impact absorbing member molding step of molding a first impact absorbing member 31; a first impact absorbing member positioning step of arranging a plurality of positioning members 53 on a bottom surface 52B of a molding recess 52A of a molding die 50, and arranging the first impact absorbing member 31 molded in the first impact absorbing member molding step in the molding recess 52A of the molding die 50 so that the first impact absorbing member is positioned by the plurality of positioning members 53; and a second impact absorbing member molding step of injecting a molten resin into the molding recess 52A of the molding die in which the first impact absorbing member 31 is arranged to mold a second impact absorbing member by insert molding, where the first impact absorbing member positioning step includes changing the plurality of positioning members 53 to change the impact absorbing member for positioning vehicle of the first impact absorbing member 31 with respect to the second impact absorbing member.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a method for manufacturing a shock absorber for a vehicle.

  Conventionally, as an impact absorbing material for absorbing an impact at the time of a side collision in a vehicle, there is one described in Patent Document 1 below. The shock absorber in Patent Document 1 is a double-structure shock absorber that includes a shock absorber main body and a cylindrical reinforcing member embedded therein.

JP 2009-168109 A

  By the way, in order to meet various demands for shock absorbing performance, it is conceivable to change the size and shape of the shock absorber body. However, since the shock absorbing material is disposed in a limited space between the door trim and the door panel, the size and shape of the shock absorbing material are limited, and it may be difficult to achieve the required shock absorbing performance. Further, in Patent Document 1, there is a limit to obtaining an impact absorbing material having various impact absorbing performances required by changing the shape and material of the reinforcing member. Under such restrictions, it has been difficult to obtain a shock absorber having an optimal shock absorbing performance corresponding to various sizes and shapes of doors.

  In addition, in order to obtain a desired shock absorbing performance, it is necessary to remodel the mold when changing the size or shape of the shock absorbing material. In such a case, it takes time and cost.

  The present invention has been completed based on the above-described circumstances, and an object thereof is to provide a method for manufacturing a vehicle shock absorber capable of easily realizing a desired shock absorption performance at low cost. And

  In order to solve the above-mentioned problems, a method of manufacturing a shock absorber for a vehicle according to the present invention includes a first shock absorbing member forming step for forming a first shock absorbing member, and a plurality of positioning members on a bottom surface of a forming recess of a forming die. The first impact absorbing member is disposed in the molding recess of the mold so that the first impact absorbing member molded in the first impact absorbing member molding step is positioned by the plurality of positioning members. A positioning step and a second shock absorbing member molding step of molding the second shock absorbing member by insert molding by injecting a molten resin into the molding recess of the molding die in which the first shock absorbing member is disposed. The first shock absorbing member with respect to the second shock absorbing member by changing the plurality of positioning members in the first shock absorbing member positioning step Characterized by a changeable position.

  According to the method for manufacturing a shock absorber for a vehicle of the present invention, the position of the first shock absorbing member with respect to the second shock absorbing member can be changed simply by changing the positioning member. Since the shock absorbing performance of the shock absorber can be changed by changing the position of the first shock absorbing member with respect to the second shock absorbing member in this way, the vehicle has a desired shock absorbing performance. The body can be easily obtained at low cost.

  In the first shock absorbing member positioning step having the above configuration, the position of the first shock absorbing member, which is changed by changing the plurality of positioning members, with respect to the second shock absorbing member is determined by the vehicle shock absorber. When it is attached to the door trim of the vehicle, it can be a position in the vehicle width direction of the vehicle.

  According to the present invention, since the position of the first shock absorbing member relative to the second shock absorbing member in the vehicle width direction of the vehicle can be easily changed, the shock absorbing performance at the time of a side collision of the vehicle can be easily adjusted. Thus, a vehicle shock absorber having a desired shock absorption performance can be obtained.

  In the above configuration, the first shock absorbing member and the second shock absorbing member may be formed of the same material.

  According to the present invention, since the first shock absorbing member and the second shock absorbing member are formed of the same material, excellent shock absorbing performance can be obtained.

  The said structure WHEREIN: These positioning members shall protrude from the said bottom face of the said shaping | molding recessed part of the said shaping | molding die.

  According to the present invention, since the plurality of positioning members are provided so as to protrude from the bottom surface of the molding recess, the first shock absorbing member can be stably held at a predetermined position in the molding die.

  In the above configuration, the plurality of positioning members have steps on their side surfaces, and in the first shock absorbing member positioning step, positioning members having different positions at which the steps are provided are attached to the bottom surface. By disposing the first shock absorbing member so as to abut, the position of the first shock absorbing member relative to the second shock absorbing member can be changed.

  According to the present invention, the position of the first shock absorbing member with respect to the second shock absorbing member can be easily changed at low cost, and a vehicle shock absorber having a desired shock absorbing performance can be manufactured. In addition, since the first shock absorbing member is disposed so as to contact the step of the positioning member, the first shock absorbing member can be stably held at a predetermined position.

  In the above configuration, in the first shock absorbing member positioning step, a positioning member having a different protrusion length from the bottom surface is attached to the bottom surface, thereby changing a position of the first shock absorbing member with respect to the second shock absorbing member. Is something that can be done.

  According to the present invention, the position of the first shock absorbing member with respect to the second shock absorbing member can be easily changed at low cost, and a vehicle shock absorber having a desired shock absorbing performance can be manufactured.

  In the first shock absorbing member forming step having the above-described configuration, the first shock absorbing member is formed into a shape having a step at a position corresponding to the plurality of positioning members on the side surface thereof, and the first shock absorbing member is formed. In the member positioning step, the first shock absorbing material can be positioned by the steps of the first shock absorbing member coming into contact with the plurality of positioning members.

  According to the present invention, the position of the first shock absorbing member with respect to the second shock absorbing member can be easily changed at low cost, and a vehicle shock absorber having a desired shock absorbing performance can be manufactured.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the shock absorber for vehicles which can implement | achieve desired shock absorption property easily at low cost can be provided.

The front view which shows the door trim which concerns on one Embodiment of this invention. Perspective view showing shock absorber Front view of shock absorber viewed from the side of the door trim mounting surface Sectional drawing which shows the shock absorber cut | disconnected by the IV-IV line in FIG. Sectional view showing another shock absorber Sectional drawing which shows another shock absorber Sectional drawing which shows the 1st shock-absorbing member molding process Sectional drawing which shows a 1st shock-absorbing member positioning process Sectional drawing which shows the 2nd shock absorption member molding process Sectional drawing which shows the 2nd shock absorption member shaping | molding process which shape | molds another shock absorber. Sectional drawing which shows the 1st shock-absorbing member positioning process using another positioning member Sectional drawing which shows the 1st shock-absorbing member shaping | molding process which uses another positioning member

  An embodiment of the present invention will be described with reference to FIGS. The door trim 10 constitutes a vehicle door by being attached to a vehicle interior side of a door inner panel (not shown) constituting the vehicle door panel.

  As shown in FIG. 1, the door trim 10 is mainly composed of a trim board 12. The trim board 12 is made of, for example, a synthetic resin material such as polypropylene. In addition, the material of the trim board 12 is not limited to a synthetic resin material, For example, you may use what mixed wood type material and synthetic resin. A skin material (not shown) is attached so as to cover the surface of the trim board 12.

  As shown in FIG. 1, the trim board 12 includes an upper board 13 that forms the upper part of the trim board 12 and a lower board 14 that forms the lower part of the trim board 12. The upper board 13 is provided with an armrest, an inside handle 16 and the like that extend in the vehicle front-rear direction. The lower board 14 is provided with a speaker grill 18 and a door pocket 20.

  As shown in FIG. 1, an impact absorber 30 is attached to the outer side surface of the lower board 14. The shock absorber 30 is located between the door inner panel (not shown) and the lower board 14. In FIG. 1, the shock absorber 30 is indicated by a broken line.

  As shown in FIG. 1, the shock absorber 30 (shock absorbing pad) is disposed on the lower board 14 at a location facing the waist from the thigh 3 of the occupant 2. The shock absorber 30 is mounted for the purpose of absorbing energy (Energy Absorption: EA) at the time of a side collision (at the time of a side collision with a vehicle door), and is also called an EA material.

  Next, the shock absorber 30 will be described with reference to FIGS. 2 and 3, the shock absorber 30 has a substantially triangular shape in plan view and has a thickness in the vehicle width direction. The shock absorber 30 includes a first shock absorbing member 31 and a second shock absorbing member 32, and the first shock absorbing member 31 is disposed inside the second shock absorbing member 32. In this embodiment, the first shock absorbing member 31 and the second shock absorbing member 32 are made of a hard urethane material. In addition, the material of the 1st shock absorption member 31 and the 2nd shock absorption member 32 can be changed suitably, and may be comprised from a different material, respectively. Moreover, you may be comprised from the material which has different urethane hardness with the same hard urethane material.

  The first shock absorbing member 31 has a plate-like cubic shape, and when the shock absorber 30 is attached to the lower board 14, the plate surface 35 is parallel to the vehicle front-rear direction and the vehicle width direction. 35 is arranged such that the longitudinal direction of the vehicle 35 is the longitudinal direction of the vehicle. The shock absorber 30 has a mounting surface 36 on the side to be attached to the lower board 14, and the opposing surface 37 of the first shock absorbing member 31 arranged parallel to the mounting surface 36 is shown in FIGS. 2 and 3. It has a horizontally long rectangle and is arranged so as to extend in the vehicle front-rear direction when the shock absorber 30 is attached to the lower board 14. Each of the two plate surfaces 35 of the first shock absorbing member 31 is provided with two grooves 31A into which positioning members 53 described later are fitted. The first shock absorbing member 31 is arranged inside the second shock absorbing member 32 so that the entire surface of the cubic shape is covered with the second shock absorbing member 32. Specifically, the second shock absorbing member 32 is provided. Is formed by insert molding using the first shock absorbing member 31 as an insert member.

  Thus, the shock absorber 30 has a double structure in which the first shock absorbing member 31 is disposed inside the second shock absorbing member 32. Therefore, the shock absorber 30 having a double structure can exhibit a shock absorbing performance different from that of a shock absorber formed of a single shock absorbing member.

  As shown in FIGS. 2 and 3, the mounting surface 36 on the side where the shock absorber 30 is mounted on the lower board 14 is provided with a mounting hole 34 for mounting on the lower board 14. A total of three attachment holes 34 are provided at the corners of the substantially triangular attachment surface of the absorber 30. The shock absorber 30 is fixed to the lower board 14 by vibration welding or the like through the attachment hole 34.

  Next, the structure of the 1st shaping | molding die 40 and the 2nd shaping | molding die 50 which shape | mold the 1st impact-absorbing member 31 and the 2nd impact-absorbing member 32 is demonstrated. As shown in FIG. 7, the first mold 40 includes an upper mold 41 and a lower mold 42. The upper mold 41 has a molding recess 41B having a molding space for molding a molded product, and the lower mold 42 and the mold. It has a material supply path 41A communicating with a molding space formed in the molding recess 41B by closing. A convex portion 41C for forming the groove 31A is formed in the molding concave portion 41B at a position corresponding to the groove 31A of the first shock absorbing member 31.

  As shown in FIGS. 8 and 9, the second mold 50 includes an upper mold 51 and a lower mold 52. The lower mold 52 has a molding recess 52A having a molding space for molding a molded product, and a molding recess. A plurality of positioning members 53 are provided so as to protrude from the bottom surface 52B of 52A. Four positioning members 53 are provided, and as shown in FIGS. 2 and 3, the positioning members 53 are positioned so as to support two portions on both sides in the longitudinal direction of the two plate surfaces 35 of the first shock absorbing member 31. The member 53 is arranged. As shown in FIG. 8, the positioning member 53 is fixed by inserting one end of the positioning member 53 in a screw shape into an attachment hole 52 </ b> C provided in the bottom surface 52 </ b> B of the lower mold 52. A mounting hole 52C for the positioning member 53 is formed in the bottom surface 52B so that the first shock absorbing member 31 is disposed at a predetermined position in the second shock absorbing member 32 forming step described later. As shown in FIG. 9, the upper mold 51 has a material supply path 51 </ b> A that communicates with a molding space formed in the molding recess 52 </ b> A by closing the mold with the lower mold 52.

  The positioning member 53 will be described with reference to FIGS. As shown in FIG. 8, the positioning member 53 has a rod shape, and at one end portion, a portion having a screw thread and inserted into the mounting hole 52 </ b> C of the bottom surface 52 </ b> B is a fixed end portion 53 </ b> A. At the end, the portion protruding from the bottom surface 52B is the support portion 53B. The fixed end portion 53A is fixed to each mounting hole 52C provided on the bottom surface 52B of the molding recess 52A with screws. The first shock absorbing member 31 is disposed such that the plate surface 35 is perpendicular to the bottom surface 52B.

  The position of the first shock absorbing member 31 relative to the second shock absorbing member 32 is changed by changing the length of the positioning member 53, specifically, the length of the support portion 53B (the protruding length from the bottom surface 52B). be able to. For example, in FIG. 10, the fixed end 63 </ b> A of the positioning member 63 is provided in the same manner as the positioning member 53, but the length of the support portion 63 </ b> B (the protruding length from the bottom surface 52 </ b> B) is the support portion of the positioning member 53. The positioning member 63 is shorter than the positioning member 53. Therefore, in FIG. 10, the first shock absorbing member 31 is arranged below the example shown in FIG. 8 in the molding recess 52 </ b> A and near the bottom surface 52 </ b> B. In the shock absorber 30A formed by positioning the first shock absorbing member 31 with the positioning member 53, the first shock absorbing member 31 is closer to the vehicle inner side in the second shock absorbing member 32 as shown in FIG. It is arranged. Moreover, in the shock absorber 30B formed by positioning the first shock absorbing member 31 with the plurality of positioning members 63, the first shock absorbing member 31 is the second shock absorbing member 32 as shown in FIG. It is arranged closer to the vehicle outer side than the shock absorber 30A.

  In FIG. 12, the positioning member 73 is shorter than the positioning member 63, and the first shock absorbing member 31 is disposed in the molding recess 52A so as to contact the bottom surface 52B. In the shock absorber formed in this way, the first shock absorbing member 31 is arranged closest to the vehicle outer side in the second shock absorbing member 32.

  As described above, since the position of the first shock absorbing member 31 having the same shape and size with respect to the second shock absorbing member 32 can be changed only by changing the positioning member, the first molding die 40 and the second molding die 50 can be changed. Can be used to form shock absorbers having different positions of the first shock absorbing member 31 with respect to the second shock absorbing member 32. Therefore, it is not necessary to prepare different molds having different shapes, and an impact absorber having a desired impact absorption performance can be easily obtained at a low cost.

  Next, a method for manufacturing the vehicle impact absorber 30 will be described. The manufacturing method of the vehicle shock absorber 30 in the present embodiment includes a first shock absorbing member forming step, a first shock absorbing member positioning step, and a second shock absorbing member forming step.

<First shock absorbing member molding step>
First, as shown in FIG. 7, molten resin, in this embodiment, a hard urethane material is injected into the molding recess 41 </ b> B from the material supply path 41 </ b> A of the upper mold 41, and after cooling and hardening, the first molding die 40 is opened. The molded first shock absorbing member 31 is taken out. In this way, the first shock absorbing member 31 having the groove 31A on the plate surface 35 is molded. The groove 31 </ b> A is open on the facing surface 37.

<First shock absorbing member positioning step>
Next, as shown in FIG. 8, the positioning member 53 is screwed into the mounting hole 52 </ b> C of the lower mold 52 of the second mold 50 so that the first shock absorbing member 31 is disposed at a desired position. Fix it. When the first shock absorbing member 31 formed in the first shock absorbing member forming step is arranged so that each groove 31A fits into the corresponding positioning member 53 inside the four positioning members 53, the first shock absorbing member 31 The contact surface 31B of each groove 31A contacts the tip surface 53C of the support portion 53B of the corresponding positioning member 53, and the position is determined and held. As described above, the position of the first impact absorbing member 31 in the molding recess 52 </ b> A of the lower mold 52 of the second molding die 50 is determined by the positioning member 53.

<Second shock absorbing member molding step>
Thereafter, as shown in FIG. 9, the lower mold 52 and the upper mold 51 are closed, and molten resin, in this embodiment, a hard urethane material is injected into the molding recess 52A from the material supply path 51A of the upper mold 51. Fill, cool and harden. Thus, the double-structure shock absorber 30 is formed by insert-molding the second shock-absorbing member 32 using the first shock-absorbing member 31 as an insert member. When molding is performed using the positioning member 53, an impact absorber 30A having an arrangement as shown in FIG. 4 is obtained.

  In the case of molding an impact absorber 30B (see FIG. 5) having an impact absorption performance different from that of the impact absorber 30A shown in FIG. 4, for example, as shown in FIG. The positioning member 63 having a length of the support portion 63B different from that of the support portion 53B is screwed and fixed to the attachment hole 52C formed in the bottom surface 52B of the lower mold 52. Then, in the same manner as when the shock absorber 30A is molded, the first shock absorbing member 31 molded in the first shock absorbing member molding step is replaced with the positioning member 63 corresponding to each groove 31A inside the four positioning members 63. When arranged so as to fit, the contact surface 31B of each groove 31A of the first shock absorbing member 31 contacts the tip surface 63C of the corresponding support member 63B of the positioning member 63, and the position is determined and held. At this time, the first shock absorbing member 31 is disposed at a position closer to the bottom surface 52B than the state of being held on the distal end surface 53C of the positioning member 53. Thus, the position of the first shock absorbing member 31 in the molding recess 52A of the lower mold 52 of the second molding die 50 is determined by the positioning member 63.

  Thereafter, in the second shock absorbing member forming step, as shown in FIG. 11, the lower die 52 and the upper die 51 are closed as in the case of forming the shock absorber 30A, and the material supply path 51A of the upper die 51 is closed. From the molten resin, in the present embodiment, a hard urethane material is injected and filled into the molding recess 52A and cooled and hardened. When molding is performed using the positioning member 63, an impact absorber 30B having an arrangement as shown in FIG. 5 is obtained. Specifically, in the shock absorber 30B, the first shock absorber 31 is disposed closer to the vehicle outer side than the first shock absorber 31 of the shock absorber 30A in the second shock absorber 32. In the shock absorber 30A and the shock absorber 30B, the first shock absorbing member 31 is entirely covered with the second shock absorbing member 32.

  Further, when molding the shock absorber 30C (see FIG. 6) having different shock absorbing performance, for example, as shown in FIG. 12, the positioning is shorter than the positioning member 63 in the first shock absorbing member positioning step. The member 73 is screwed and fixed to a mounting hole 52C formed in the bottom surface 52B of the lower mold 52. The fixed end 73A of the positioning member 73 is inserted into the attachment hole 52C, and the support portion 73B (projection length from the bottom surface 52B) is shorter than the support portion 63B. When the first shock absorbing member 31 formed in the first shock absorbing member forming step is arranged so that each groove 31A fits in the corresponding positioning member 73 inside the four positioning members 73, the first shock absorbing member The contact surfaces 31B of the respective grooves 31A of the 31 are in contact with the tip surfaces 73C of the support portions 73B of the corresponding positioning members 73, and the opposing surface 37 of the first shock absorbing member 31 is the bottom surface of the molding recess 52A of the lower mold 52. It is held in contact with 52B. In this way, the position of the first impact absorbing member 31 in the molding recess 52 </ b> A of the lower mold 52 of the second molding die 50 is determined by the positioning member 73.

  Thereafter, in the second shock absorbing member molding step, as shown in FIG. 12, the lower mold 52 and the upper mold 51 are closed in the same manner as when the shock absorbers 30A and 30B are molded, and the material of the upper mold 51 is supplied. Molten resin from the path 51A, in this embodiment, hard urethane material is injected and filled into the molding recess 52A to cool and harden. In the case of molding using the positioning member 73, as shown in FIG. 6, in the obtained shock absorber 30C, one surface of the first shock absorber 31 constitutes the outer surface on the vehicle outer side of the shock absorber 30C. Yes. In the shock absorber 30C formed by using the positioning member 73, one surface of the first shock absorber 31 is not covered with the second shock absorber 32, and constitutes the outer surface of the shock absorber 30C. Yes.

  The shock absorbers 30A, 30B, and 30C molded in this way are configured such that the positions of the first shock absorber in the vehicle width direction with respect to the second shock absorber are different, and have different shock absorption performance. .

  Next, the effect of this embodiment will be described. In the present embodiment, the shock absorbers 30A, 30B, and 30C having different configurations can be molded using the same first molding die 40 and second molding die 50. Specifically, the second impact absorbing member 32 is insert-molded using the same second molding die 50 with the first impact absorbing member 31 molded by the same first molding die 40 as an insert member. At that time, when molding the shock absorber 30A, the positioning member 53 is screwed into the mounting hole 52C of the lower mold 52 of the second mold 50 and the second shock absorbing member molding process is performed. When molding the shock absorber 30B, the positioning member 63 is screwed into the mounting hole 52C of the lower mold 52 of the second molding die 50 to perform the second shock absorbing member molding step. When molding the shock absorber 30C, the positioning member 73 is screwed into the mounting hole 52C of the lower mold 52 of the second molding die 50 to perform the second shock absorbing member molding step.

  As described above, according to the present embodiment, the first molding die 40 and the second molding die 50 are the same, and only the positioning member is changed. The shock absorbers 30A, 30B, and 30C having different configurations with respect to the shock absorbing material and having different shock absorbing performance can be formed. It is not necessary to prepare a separate mold for molding shock absorbers having different structures and shock absorbing performances, and the desired molding can be easily performed at low cost simply by changing the positioning members 53, 63 and 73 with the same mold. A shock absorber having shock absorbing performance can be obtained.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the above embodiment, four positioning members are provided, but it is sufficient that at least two positioning members are provided, and five or more positioning members may be provided.

  (2) The shapes of the first shock absorbing member and the second shock absorbing member may be appropriately changed as long as desired shock absorbing performance can be obtained.

  (3) Using the same positioning member, the position of the first shock absorber in the vehicle width direction relative to the second shock absorber may be changed by changing the length of the groove of the first shock absorber.

  (4) The 1st shock absorption member may have the groove | channel which opens also in the opposing surface on the opposite side. According to such a configuration, when the first absorbent member is arranged in the second mold, it is not necessary to consider the direction of insertion, and thus the manufacturing process can be simplified.

  (5) Instead of forming a groove in the first shock absorbing member, a step may be provided in the positioning member to position the first shock absorbing material with respect to the second shock absorbing material. In this case, the position of the first shock absorber with respect to the second shock absorber can be changed by changing the position of the step of the positioning member.

DESCRIPTION OF SYMBOLS 10 ... Door trim, 13 ... Upper board, 14 ... Lower board, 30 ... Shock absorber, 31 ... 1st shock absorption member, 31A ... Groove, 31B ... Contact surface, 32 ... 2nd shock absorption member, 37 ... Opposite surface, 40 ... 1st shaping | molding die, 41B ... Molding recessed part, 41C ... Convex part, 50 ... 2nd shaping | molding die, 52 ... Lower mold | type, 52A ... Molding recessed part, 52B ... Bottom surface, 52C ... Mounting hole, 53, 63, 73, 83 ... positioning member, 53A ... fixed end, 53B ... support, 53C ... tip surface, 63A ... fixed end, 63B ... support, 63C ... tip surface, 73A ... fixed end, 73B ... support, 73C ... tip surface

Claims (6)

A first shock absorbing member forming step for forming the first shock absorbing member;
A plurality of positioning members are disposed on the bottom surface of the molding recess of the molding die, and the first shock absorbing member molded in the first shock absorbing member molding step is positioned by the plurality of positioning members so as to be positioned by the plurality of positioning members. A first shock absorbing member positioning step to be disposed in the molding recess;
A second shock absorbing member molding step of molding the second shock absorbing member by insert molding by injecting a molten resin into the molding recess of the molding die in which the first shock absorbing member is disposed. In the method of manufacturing a shock absorber for a vehicle,
In the first shock absorbing member positioning step, the position of the first shock absorbing member relative to the second shock absorbing member can be changed by changing the plurality of positioning members. Manufacturing method. In the first shock absorbing member positioning step, the position of the first shock absorbing member relative to the second shock absorbing member, which is changed by changing the plurality of positioning members,
The method for manufacturing a vehicle shock absorber according to claim 1, wherein the vehicle shock absorber is a position in a vehicle width direction of the vehicle when the vehicle shock absorber is attached to a vehicle door trim.   The method for manufacturing a vehicle shock absorber according to claim 1 or 2, wherein the first shock absorbing member and the second shock absorbing member are formed of the same material.   The method for manufacturing a vehicle impact absorber according to any one of claims 1 to 3, wherein the plurality of positioning members protrude from the bottom surface of the molding recess of the molding die.   In the first shock absorbing member positioning step, the position of the first shock absorbing member relative to the second shock absorbing member is changed by attaching a positioning member having a different protrusion length from the bottom surface to the bottom surface. The manufacturing method of the shock absorber for vehicles as described in any one of Claim 1 thru | or 4. In the first shock absorbing member forming step, the first shock absorbing member is formed into a shape having a step at a position corresponding to the plurality of positioning members on the side surface,
6. The first shock absorbing member positioning step, wherein the step of the first shock absorbing member abuts against the plurality of positioning members to position the first shock absorbing material. The manufacturing method of the shock absorber for vehicles as described in any one of these.

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