JP2008012946A - Interior material structure - Google Patents

Abstract

[PROBLEMS] To achieve both of ensuring rigidity when using an armrest and ensuring performance of reducing impact force on a vehicle interior side.
When a load acts on the lower end of a ridge portion 30 formed on a side surface portion 28 of an armrest 24 due to, for example, a side collision, the ridge portion 30 becomes an upper surface portion. Rotating in the R1 direction with the connecting portion P1 to the fulcrum 26 as a fulcrum, a bending force acts on the upper surface portion 26 in the R2 direction, and the upper surface portion 26 is bent at the first slit 34 and the second slit 36. Therefore, for example, the performance of reducing the impact force to the vehicle interior side of the armrest 24 at the time of a side collision or the like is ensured. Further, the rigidity of the armrest 24 in the vehicle width direction is reduced only when a load is applied to the vehicle interior side. Therefore, it is not necessary to lower the rigidity of the armrest 24 in advance at the stage of use before the load acts on the vehicle interior side. Thereby, the rigidity at the time of use of the armrest 24 is also securable.
[Selection] Figure 5

Description

  The present invention relates to a vehicle compartment material structure, and more particularly, to a vehicle compartment material structure including a vehicle compartment material provided with a bulging portion that bulges toward the vehicle interior side.

Conventionally, the following is known as this kind of vehicle room material structure (for example, refer to patent documents 1). For example, Patent Document 1 discloses an example including an automobile shock absorbing door trim. In the example described in Patent Document 1, an armrest that bulges toward the vehicle interior side is provided on the door trim. In addition, the armrest is provided with a plurality of breaking grooves in order to reduce the impact force on the vehicle interior side during a side collision.
JP 2000-103230 A JP 2005-047375 A JP 2002-029257 A

  However, for example, when the armrest is provided with a plurality of fracture grooves as in the example described in Patent Document 1, the rigidity when the armrest is used decreases. Therefore, there is room for improvement in order to achieve both the securing of rigidity when using the armrest and the performance of reducing the impact force on the vehicle interior side.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle compartment material structure including a vehicle compartment material provided with a bulge portion that bulges toward the vehicle compartment side. This is to achieve both the securing of rigidity during use of the portion and the securing of the performance of reducing the impact force on the vehicle interior side.

  In order to solve the above-described problem, the vehicle compartment material structure according to claim 1 uses a vehicle compartment material provided with a bulging portion that bulges toward the vehicle interior side, and a load acting on the vehicle interior side. And the rigidity reduction means for reducing the rigidity of the bulging part of the said bulging part is provided, It is characterized by the above-mentioned.

  In the vehicle compartment material structure according to the first aspect, the vehicle compartment material is provided with a bulging portion that bulges toward the vehicle interior side. When a load acts on the rigidity reducing means toward the vehicle interior side, the rigidity reducing means reduces the rigidity of the bulging portion in the bulging direction. Thereby, for example, the ability to reduce the impact force of the bulging portion on the vehicle interior side during a collision or the like is ensured.

  In the vehicle compartment material structure according to claim 1, the rigidity in the bulging direction of the bulging portion is reduced only when a load acts on the vehicle interior side. Therefore, it is not necessary to lower the rigidity of the bulging portion in advance at the stage of use before the load is applied to the vehicle interior side. Thereby, the rigidity at the time of use of a bulging part is securable.

  Thus, according to the vehicle interior material structure of the first aspect, it is possible to achieve both ensuring of rigidity during use of the bulging portion and ensuring of performance for reducing the impact force on the vehicle interior side. .

  The vehicle compartment material structure according to claim 2 is the vehicle compartment material structure according to claim 1, wherein the rigidity reducing means is configured to bend or break a wall portion in a bulging direction of the bulging portion. It is characterized by being.

  According to the vehicle interior material structure of the second aspect, when a load acting on the vehicle interior side acts on the rigidity reducing means, the bulging direction wall portion of the bulging portion is bent or broken by the rigidity reducing means. Thereby, the rigidity of the bulging part in the bulging direction can be reliably reduced.

  In addition, according to the vehicle compartment material structure of the second aspect, as described above, the bulge direction wall portion of the bulge portion is bent or broken, so that the bulge when the applied load is applied to the vehicle compartment side. The amount of intrusion into the vehicle interior side of the exit can be suppressed. Further, by bending or breaking the bulging direction wall portion using a load acting on the vehicle interior side, the bulge portion bulges before the bulge portion interferes with a member or the like disposed in the vehicle compartment. The amount can be reduced.

  The casing material structure according to claim 3 is the casing material structure according to claim 2, wherein the bulging portion extends in the bulging direction to an end side of the bulging direction wall portion. The rigidity reducing means is configured to have a protrusion that is provided integrally with the bulging direction side wall and extends in a direction non-parallel to the bulging direction wall. It is characterized by being.

  According to the vehicle interior material structure of the third aspect, the protruding portion that extends in a direction not parallel to the bulging direction wall portion is integrally provided on the bulging direction side wall portion of the bulging portion. For example, when a load is applied to the vehicle interior side at a position far from the bulging direction wall portion of the ridge portion, the ridge portion rotates around a position near the bulging direction wall portion as a fulcrum. Thereby, since a bending force acts on the bulging direction wall portion of the bulging portion, the bulging direction wall portion of the bulging portion can be bent or broken.

  In order to solve the above-mentioned problem, the vehicle interior material structure according to claim 4 bulges toward the vehicle interior side and bulges toward the bulge direction wall portion and the end side of the bulge direction wall portion. A bulging portion configured to have a bulging direction side wall portion extending in a direction extending in a direction parallel to the bulging direction wall portion provided integrally with the bulging direction side wall portion And a ridge extending to the surface.

  In the vehicle compartment material structure according to the fourth aspect of the present invention, the ridge portion extending in a direction non-parallel to the bulging direction wall portion is integrally provided on the bulging direction side wall portion of the bulging portion. For example, when a load is applied to the vehicle interior side at a position far from the bulging direction wall portion of the ridge portion, the ridge portion rotates around a position near the bulging direction wall portion as a fulcrum. Therefore, a bending force acts on the bulging direction wall portion of the bulging portion, and the bulging direction wall portion of the bulging portion is bent or broken. Thereby, since the rigidity of the bulging part in the bulging direction is reduced, for example, the ability to reduce the impact force of the bulging part on the vehicle interior side during a collision or the like is secured.

  In the vehicle compartment material structure according to claim 4, the rigidity of the bulging portion in the bulging direction is reduced only when a load is applied to the vehicle interior side. Therefore, it is not necessary to lower the rigidity of the bulging portion in advance at the stage of use before the load is applied to the vehicle interior side. Thereby, the rigidity at the time of use of a bulging part is securable.

  Thus, according to the vehicle compartment material structure of the fourth aspect, it is possible to achieve both of ensuring the rigidity when using the bulging portion and ensuring the performance of reducing the impact force on the vehicle interior side. Become.

  Further, according to the vehicle compartment structure of the fourth aspect, as described above, the bulge direction wall portion of the bulge portion is bent or broken, so that the bulge when an applied load acts on the vehicle interior side. The amount of intrusion into the vehicle interior side of the exit can be suppressed. Further, by bending or breaking the bulging direction wall portion using a load acting on the vehicle interior side, the bulge portion bulges before the bulge portion interferes with a member or the like disposed in the vehicle compartment. The amount can be reduced.

  The vehicle cabin material structure according to claim 5 is the vehicle cabin material structure according to claim 3 or 4, wherein the rigidity reducing means is integrally provided on the bulging direction wall portion and the bulging direction. It is characterized by having a connecting ridge extending along the longitudinal direction of the casing side edge of the wall and connected to the ridge.

  According to the vehicle interior material structure of claim 5, the connecting ridge extending along the longitudinal direction of the vehicle side edge of the bulging direction wall is integrated with the bulging direction wall of the bulging portion. Provided. Moreover, this connection protrusion part is connected with the above-mentioned protrusion part. And, for example, when a load acts on the vehicle interior side at a position far from the bulge direction wall portion of the ridge portion, the ridge portion rotates around a position near the bulge direction wall portion as a fulcrum, A rotational force acts on the whole connecting protrusion. Thereby, in the bulging direction wall portion of the bulging portion, a bending force acts in the extending direction of the connecting ridge portion, so that the bending or breaking of the bulging direction wall portion of the bulging portion can be promoted. it can.

  The vehicle compartment material structure according to claim 6 is the vehicle compartment material structure according to claim 5, wherein the bulging direction wall portion is provided with a fragile portion on the vehicle exterior side of the connection protrusion. It is characterized by being.

  According to the vehicle interior material structure of the sixth aspect, the fragile portion is provided on the outer side of the vehicle compartment with respect to the connecting protrusion portion of the bulging direction wall portion. Therefore, as described above, when a bending force acts on the bulging direction wall portion of the bulging portion over the extending direction of the connecting protrusion, the fragile portion can be bent or broken.

  As described above in detail, according to the present invention, in the vehicle compartment material structure including the vehicle compartment material provided with the bulge portion that bulges toward the vehicle compartment side, the rigidity of the bulge portion when used is increased. It is possible to achieve both ensuring and ensuring the performance of reducing the impact force on the vehicle interior side.

  Hereinafter, an example in which the passenger compartment structure 10 of the present invention is applied to a side door 12 of a vehicle will be described with reference to FIGS.

  1 to 5 are views showing an embodiment of the present invention. FIG. 1 is a front sectional view of a side door 12 to which a vehicle compartment structure 10 is applied. FIG. 2 is an enlarged view of a main part of FIG. 3 is a cross-sectional plan view of the door trim 20, FIG. 4 is a perspective view of the door trim 20, and FIG. 5 is an operation explanatory view of the vehicle compartment material structure 10 shown in FIG. In these drawings, the arrow Fr indicates the vehicle front-rear direction front side, the arrow Up indicates the vehicle vertical direction upper side, and the arrow Out indicates the vehicle width direction outer side.

  First, the configuration of the side door 12 to which the vehicle compartment structure 10 according to an embodiment of the present invention is applied will be described with reference to FIGS. 1 to 4.

  As shown in FIG. 1, in the side door 12 to which the vehicle interior material structure 10 according to the embodiment of the present invention is applied, the door panel body 18 constituted by the door outer panel 14 and the door inner panel 16 is arranged on the vehicle interior side. A door trim 20 is provided as a vehicle compartment material.

  The door trim 20 includes an armrest 24 as a bulging portion that bulges toward the vehicle width direction inner side (vehicle interior side) at the vehicle vertical direction center portion of the door trim main body 22.

  As shown in FIG. 4, the armrest 24 has an upper surface portion 26 as a bulging direction wall portion provided on the upper side in the vehicle vertical direction, and a bulge provided on both ends in the vehicle front-rear direction in succession to the upper surface portion 26. And a side surface portion 28 as a directional side wall portion. Both the upper surface portion 26 and the side surface portion 28 are formed so as to extend along the vehicle width direction (the bulging direction of the armrest 24).

  As shown in FIG. 3, each side surface portion 28 of the armrest 24 is provided with a protrusion 30 on the back surface 28 </ b> A. The protrusion 30 is integrally provided on the side surface 28 by, for example, integral molding. Further, in each side surface portion 28, as shown in FIG. 2, the ridge portion 30 is directed from the lower side to the upper side in the vehicle vertical direction (the direction not parallel to the upper surface portion 26) from the outside to the inside of the vehicle compartment. So that it is inclined and extended.

  In addition, the ridge 30 is configured to bend at an intermediate portion in the longitudinal direction. That is, the protrusion 30 has an upper protrusion 30A having a small inclination angle with respect to the reference line L1 extending in the vehicle vertical direction and a lower protrusion having a large inclination angle with respect to the reference line L1 extending in the vehicle vertical direction. 30B. In addition, as shown in FIG. 1, the lower end of the lower ridge 30B is positioned at the vehicle vertical direction center of the side door 12 serving as an input point of a collision load at the time of a side collision, for example.

  As shown in FIG. 2, the upper surface portion 26 of the armrest 24 is configured such that the occupant's arm can be placed on the surface 26 </ b> A. Further, on the upper surface portion 26 of the armrest 24, a connecting ridge portion 32 is provided at a position closer to the inner side (vehicle interior side) of the rear surface 26B in the vehicle width direction.

  The connecting protrusion 32 is integrally provided on the upper surface 26 by, for example, integral molding. Further, as shown in FIG. 4, the connecting protrusion 32 extends along the longitudinal direction (vehicle longitudinal direction) of the cabin side edge portion 26 </ b> C of the upper surface portion 26, and both ends thereof are as described above. It is connected to the ridge 30.

  In the present embodiment, the above-described protrusion 30 and the connecting protrusion 32 constitute the rigidity reducing means according to the present invention.

  Further, as shown in FIG. 2, the upper surface portion 26 includes a first slit 34 that opens upward at a position outside the vehicle width direction (vehicle exterior side) of the surface 26A, and a vehicle width direction center portion of the back surface 26B. Is provided with a second slit 36 that opens downward. Both the first slit 34 and the second slit 36 are provided on the outer side in the vehicle width direction than the above-described connecting protrusion 32. Further, as shown in FIG. 4, the first slit 34 and the second slit 36 are formed along the vehicle front-rear direction in parallel with the connecting protrusion 32.

  In the present embodiment, the first slit 34 and the second slit 36 described above constitute a fragile portion according to the present invention.

  Next, the operation and effect of the passenger compartment structure 10 according to one embodiment of the present invention will be described with reference to FIG.

  As shown in FIG. 5, in the side door 12 to which the vehicle compartment material structure 10 according to an embodiment of the present invention is applied, the vehicle compartment is formed with respect to the vehicle vertical direction center portion of the side door 12 due to, for example, a side collision. When a load of a predetermined value or more acts on the inside, the door outer panel 14 and the door inner panel 16 are deformed toward the vehicle interior side.

  In addition, if a load acts on the lower end of the lower ridge 30B of the ridge 30 formed on the armrest 24 as shown by the arrow F1 in the drawing, the ridge 30, the upper ridge portion 30 </ b> A rotates as indicated by an arrow R <b> 1 in the drawing with the connecting portion P <b> 1 with the upper surface portion 26 as a fulcrum. Then, a bending force acts on the upper surface portion 26 in the direction indicated by the arrow R2 in the figure, and the upper surface portion 26 is bent.

  The upper surface portion 26 is integrally provided with a connecting ridge 32 extending in the vehicle front-rear direction. The connecting protrusion 32 is connected to the upper protrusion 30 </ b> A of the above-described protrusion 30. Therefore, as described above, when the upper ridge 30A rotates as indicated by the arrow R1 in the drawing, a rotational force acts on the entire connecting ridge 32 in the R2 direction. Thereby, in the upper surface part 26, bending force acts in the direction shown by arrow R2 in the figure over the extending direction of the connecting protrusion 32, and the bending of the upper surface part 26 is promoted.

  Moreover, in the vehicle compartment material structure 10 according to an embodiment of the present invention, the first slit 34 and the second slit 36 that are fragile portions are provided on the outer side of the vehicle compartment with respect to the connecting protrusion 32 of the upper surface portion 26. . Therefore, as described above, when a bending force is applied in the direction indicated by the arrow R2 in the drawing over the extending direction of the connecting protrusion 32 in the upper surface portion 26, the first slit 34 and the second slit in the upper surface portion 26. Bending occurs at 36.

  Further, in the vehicle compartment material structure 10 according to one embodiment of the present invention, as described above, the first slit 34 and the second slit 36 are provided in the upper surface portion 26, so that the upper surface portion 26 is bent downward ( That is, it breaks inside the armrest 24).

  Thus, according to the vehicle compartment material structure 10 according to one embodiment of the present invention, a load of a predetermined value or more acts on the vehicle interior side with respect to the vehicle vertical direction central portion of the side door 12 due to, for example, a side collision. In this case, the upper surface 26 can be bent at the first slit 34 and the second slit 36 by using this load.

  Therefore, even if the door outer panel 14 and the door inner panel 16 are deformed to the vehicle interior side due to, for example, a side collision, the amount of the armrest 24 entering the vehicle interior side can be suppressed. Further, by bending the upper surface portion 26 using a load acting on the vehicle interior side, the bulge amount of the armrest 24 can be reduced before the armrest 24 interferes with a member or the like disposed in the vehicle interior.

  Moreover, according to the vehicle compartment material structure 10 according to the embodiment of the present invention, the lower end of the ridge 30 can be formed without forming the upper surface 26 of the armrest 24 with a resin that is easily broken (for example, a highly rigid resin). By inputting the load to the vehicle interior side, the upper surface portion 26 can be reliably bent.

  Further, according to the vehicle compartment structure 10 according to one embodiment of the present invention, the upper surface portion 26 is bent at the first slit 34 and the second slit 36, so that the bulging direction of the armrest 24 (vehicle width direction). The rigidity is reduced. Therefore, for example, the performance of reducing the impact force to the vehicle interior side of the armrest 24 at the time of a side collision or the like is ensured.

  Moreover, in the vehicle compartment material structure 10 according to an embodiment of the present invention, the rigidity of the armrest 24 in the bulging direction (vehicle width direction) is reduced only when a load acts on the vehicle interior side as described above. Therefore, it is not necessary to lower the rigidity of the armrest 24 in advance at the stage of use before the load acts on the vehicle interior side. Thereby, the rigidity at the time of use of the armrest 24 is also securable.

  Thus, according to the vehicle compartment material structure 10 according to an embodiment of the present invention, it is possible to achieve both ensuring of rigidity when the armrest 24 is used and ensuring performance of reducing the impact force on the vehicle interior side. It becomes possible.

  Next, a modified example of the passenger compartment structure 10 according to an embodiment of the present invention will be described.

  In the above embodiment, an example in which the vehicle compartment material structure 10 of the present invention is applied to the side door 12 of the vehicle and the amount of intrusion of the armrest 24 into the vehicle interior at the time of a side collision, for example, has been described. The vehicle compartment structure 10 of the invention is not limited to this. In addition, for example, the casing material structure 10 of the present invention is applied to an instrument panel, an interior trim material, or the like of a vehicle, and a bulging portion provided on the instrument panel or the interior trim material at the time of a collision or the like. The amount of intrusion into the vehicle interior side may be reduced.

  In the above embodiment, the upper surface portion 26 is bent at the first slit 34 and the second slit 36 at the time of a side collision, for example. You may be comprised so that it may fracture | rupture in the 1st slit 34 and the 2nd slit 36. FIG. Even in this case, for example, the rigidity in the bulging direction of the armrest 24 and the amount of intrusion into the vehicle interior at the time of a side collision or the like can be reduced.

  In the above embodiment, the upper surface portion 26 is bent at the time of a side collision, for example. However, the side portion 28 is bent at the time of a side collision, for example. Moreover, you may be comprised so that both the upper surface part 26 and the side part 28 may be bent.

  Moreover, in the said embodiment, while the protrusion part 30 provided in the side part 28 was inclined, it was comprised so that it might bend in the longitudinal direction intermediate part, but the protrusion part 30 which concerns on this invention Is not limited to this. In addition, the protrusion 30 is configured in other shapes as long as the lower end of the protrusion 30 can rotate about the connecting portion with the upper surface 26 when receiving a load on the vehicle interior side. Also good.

  Moreover, in the said embodiment, although the 1st slit 34 and the 2nd slit 36 as a weak part were provided in the side part 28, the thin part as a weak part may be provided in the side part 28. FIG.

It is sectional drawing of the side door to which the vehicle interior material structure which concerns on one Embodiment of this invention was applied. It is a principal part enlarged view of FIG. It is a plane sectional view of a door trim concerning one embodiment of the present invention. It is a perspective view of the door trim which concerns on one Embodiment of this invention. It is operation | movement explanatory drawing of the vehicle compartment material structure shown by FIG.

Explanation of symbols

10 Car interior material structure 12 Side door 20 Door trim (car interior material)
24 Armrest (bulging part)
26 Upper surface (bulging direction wall)
28 Side surface (bulging side wall)
30 ridge (part of rigidity reduction means)
32 Connecting ridges (part of rigidity reduction means)
34 First slit (fragile part)
36 Second slit (fragile part)

Claims (6)

Vehicle interior material provided with a bulging portion that bulges toward the vehicle interior side;
Rigidity reducing means for reducing rigidity in the bulging direction of the bulging portion using a load acting on the vehicle interior side;
A vehicle room material structure characterized by comprising:   The vehicle interior material structure according to claim 1, wherein the rigidity reducing means is configured to bend or break a bulging direction wall portion of the bulging portion. The bulging portion is configured to have a bulging direction side wall portion extending in the bulging direction on an end side of the bulging direction wall portion,
The said rigidity reduction means is provided with the protrusion part integrally provided in the said bulging direction side wall part, and extending in the direction non-parallel to the said bulging direction wall part, It is characterized by the above-mentioned. Item 2. The vehicle compartment structure according to Item 2. A bulging portion configured to bulge toward the vehicle interior side and includes a bulging direction wall portion and a bulging direction side wall portion extending in the bulging direction on an end side of the bulging direction wall portion is provided. Car interior materials,
A protrusion provided integrally with the bulging direction side wall and extending in a direction non-parallel to the bulging direction wall;
A vehicle room material structure characterized by comprising:   The rigidity reducing means is a connecting projection integrally provided on the bulging direction wall portion, extending along a longitudinal direction of a vehicle compartment side edge of the bulging direction wall portion and coupled to the ridge portion. The vehicle interior material structure according to claim 3 or 4, wherein the vehicle interior material structure is configured to have a strip portion.   The vehicle compartment material structure according to claim 5, wherein the bulging direction wall portion is provided with a fragile portion on the vehicle exterior side of the connection protrusion.

Images