JP4048852B2 - Automotive interior parts - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an interior part for an automobile, and mainly relates to a door trim that is internally mounted on a door panel, a rear side trim that is disposed on the side of a rear seat passenger in a two-door vehicle or a wagon vehicle, and the like.
[0002]
[Prior art]
Conventionally, interior parts for automobiles are provided in the interior of an automobile for the purpose of improving aesthetics. Among them, the trim part provided on the side of the passenger compartment is formed by sticking a skin material on the surface of the resin core material, and an armrest for the passenger to rest on the elbow is provided at the height of the waist of the passenger . The resin core material at the top of this armrest is formed in a wave shape that undulates in the vehicle width direction, ensuring sufficient rigidity to withstand the occupant's elbows and load, and occupants in the event of a side collision of the vehicle When an impact from the side of the armrest is applied, the impact load is absorbed by bending in the vehicle width direction and breaking. (Japanese Patent Laid-Open No. 9-240277)
[0003]
[Problems to be solved by the invention]
However, in the armrests provided in conventional interior parts, it is necessary to make the resin core thinner in order to reduce the crushing load of the armrests in order to reduce the reaction force from the armrests to the occupant during a side collision of the vehicle. However, since it is necessary for the armrest to secure the rigidity necessary to support the load applied to the upper surface of the armrest when the occupant rests on the elbow, the resin core material cannot be made thin, so the crushing load cannot be reduced. It could not be reduced. This invention makes it a subject to ensure the rigidity with respect to the load added to the upper part of an armrest while reducing the crushing load when the impact from the armrest side by a passenger | crew is added.
[0004]
[Means for Solving the Problems]
Therefore, in the present invention, the trim part is mounted on the vehicle interior side of the inner panel of the vehicle body and has an armrest, and a hollow body that seals gas inside and can support a load applied to the upper portion of the armrest. The interior part for an automobile having release means for releasing the sealed state of the hollow body when a predetermined impact is input , wherein the release means is a protrusion protruding toward the hollow body, and the inner panel Provided is an interior part for an automobile which is provided between the trim part .
[0005]
【The invention's effect】
According to the present invention, the hollow body has a hollow body capable of supporting the load applied to the upper portion of the armrest, and when a shock is applied from the side of the armrest by the occupant during a side collision of the vehicle, the sealed state of the hollow body in which gas is sealed inside Therefore, the crushing load of the armrest when an impact is applied can be reduced while securing the rigidity for supporting the load applied to the upper portion of the armrest.
[0006]
[Embodiments of the Invention]
Embodiments of the present invention will be described below with reference to FIGS.
In this embodiment, the automotive interior part of the present invention is applied to a door trim. FIG. 1 is a perspective view of an automobile interior part according to the present embodiment, and FIG. 2 is a perspective view of a hollow body and a rib as a releasing means according to the present embodiment. 3 is an AA cross section in FIG. 1, FIG. 4 is a BB cross section in FIG. 3, and FIG. 5 is a CC cross section in FIG.
[0007]
1 to 5 show a door trim 1 and a hollow body 2 that are trim parts. The door trim 1 is attached to the vehicle interior side of the inner panel 3 of the vehicle body on the side surface of the vehicle interior by a clip (not shown). The door trim 1 has an armrest 4 formed to protrude toward the passenger compartment at a position corresponding to the height of the occupant's waist, and the occupant can rest on the armrest 4 by placing an elbow. On the other hand, the armrest 4 and the inner panel 3 form a closed space 5. The hollow body 2 in which gas is sealed is placed in the closed space 5 in contact with the inner surface of the upper portion 4 a of the armrest 4.
[0008]
The hollow body 2 has a plurality of welding holes 2 a and is welded to a welding boss 1 a provided on the door trim 1 using the welding holes 2 a. In the front of the hollow body 2, a door pocket 6 having a side wall 6 a and an upper portion 4 a of the armrest 4 formed in a concave shape is provided. A vertical portion 4 c of the armrest 4 is provided around the vehicle behind the hollow body 2. Below the hollow body 2, there are provided a regulation rib 7 provided at a position facing the upper portion 4 a of the armrest 4 and protruding from the inner surface of the vertical portion 4 c to the side of the passenger compartment, and a lower portion 4 b of the armrest 4. ing. The vehicle front of the hollow body 2 is in contact with the side wall 6a, the vehicle rear is in contact with the vertical part 4c of the armrest 4, and the lower part is in contact with the inner surfaces of the regulating rib 7 and the lower part 4b of the armrest 4, thereby restricting the movement of the hollow body 2. ing.
[0009]
Here, of the welding holes 2a of the hollow body 2, with respect to the welding holes 2a formed at the front and the lower side of the vehicle, the end of the hollow body 2 is extended on a flat plate, and the welding holes 2a are provided there. . On the other hand, the welding hole 2a provided on the rear side of the vehicle is provided on the bottom surface of a concave portion in which a part of the surface of the hollow body 2 on the inner panel 3 side is recessed toward the vehicle interior side.
[0010]
On the other hand, a rib 8 is provided integrally with the door trim 1 between the door trim 1 and the inner panel 3 on the inner surface of the vertical portion 4c of the armrest 4, and the rib 8 has a triangular cross-section in the front-rear direction of the vehicle. It is formed in a shape extending along the body 2. The rib 8 protrudes toward the side of the vehicle compartment and protrudes toward the hollow body 2.
[0011]
The hollow body 2 is formed in a bag shape in which thin polyethylene having a plate thickness of 0.05 mm to 0.15 mm (more preferably 0.1 mm) is sealed using a blow molding method, and the inside thereof has a thickness of 100 to 300 kPa. Gas such as air is sealed by pressure.
[0012]
FIG. 5 is an explanatory diagram for explaining the behavior of the interior part of the present embodiment at the time of a side collision of the vehicle. (A) (b) (c) ( They are displayed in the order of d). Reference numeral 9 denotes an occupant of the vehicle according to the present embodiment, and reference numeral 10 denotes a side collision vehicle that collides with the vehicle.
[0013]
(A) is a state immediately before the collision, and the side collision vehicle 10 is directed toward the outer panel 11 of the vehicle body on the side surface of the vehicle body from the vehicle side surface. At this time, there are predetermined intervals between the armrest 4 and the occupant 9 and between the hollow body 2 and the rib 8. (B) is immediately after the collision, and the outer panel 11 is deformed by the collision of the side collision vehicle 10, and the inner panel 3 and the door trim 1 are integrated and approach the occupant 9 by deformation of the entire vehicle body (not shown) and movement of the occupant 9. Then, the vertical portion 4 c of the armrest 4 starts to contact the occupant 9. Thereafter, as shown in (C), the armrest 4 is deformed by a reaction force when the vertical portion 4c of the armrest 4 comes into contact with the occupant 9, and the tips of the ribs 8 come into contact with the hollow body 2, so The part is cut or ruptured to release the sealed state of the hollow body 2. That is, the hollow body 2 loses the reaction force and can be easily crushed. And finally, as shown in (e), the armrest 4 will be crushed.
[0014]
Next, the effects of the present embodiment will be described separately in the following 1 to 9.
[0015]
1. The door trim 1 is mounted on the inner side of the inner panel 3 and has an armrest 4 and a hollow body 2 capable of supporting a load applied to the upper portion of the armrest 4. When the predetermined impact is input, the hollow body 2 is provided. The release means (rib 8) which cancels | releases the sealing state of is included. Therefore, the rigidity for supporting the load applied to the upper portion of the armrest 4 is ensured, and the crushing load of the armrest 4 when an impact from the side of the armrest 4 by the occupant 9 is applied during a side collision of the vehicle is reduced. Can do.
[0016]
2. The armrest 4 and the inner panel 3 form a closed space 5, and a hollow body 2 in which a gas is sealed is disposed in the closed space 5. A rib 8 protruding toward the hollow body 2 is provided between the inner panel 3 and the door trim 1 of the vehicle body. As a result, a simple structure ensures rigidity to support the load applied to the upper portion of the armrest 4, and the collapse load of the armrest 4 when an impact from the side of the armrest 4 by the occupant 9 is applied during a side collision of the vehicle. Can be reduced.
[0017]
3. The door trim 1 holds the hollow body 2 by using the welding boss 1a and the fastening hole 2a of the hollow body 2. As a result, the hollow body 2 can be held in the door trim 1 in advance and can be integrally attached to the vehicle body panel, so that the troublesomeness of attaching the hollow body 2 and the door trim 1 to the inner panel 3 is eliminated, and the work at the time of assembly is performed. Efficiency is improved and manufacturing costs are reduced.
[0018]
4. In the present embodiment, ribs 8 extending along the hollow body 2 are used. Thereby, the contact length of the rib 8 and the hollow body 2 at the time of a side collision can be taken large. Since the position at which the load from the side of the armrest 4 by the occupant 9 at the time of a side collision of the vehicle is not always the same position, the sealing state of the hollow body 2 can be ensured by increasing the contact length. Since the hollow body can be largely cut when the sealed state is released, the gas sealed inside can be immediately released. Therefore, the crushing load when an impact by the occupant 9 is applied from the side of the armrest 4 can be immediately reduced.
[0019]
5 and the rib 8 are provided in the vertical portion 4 c of the armrest 4. Since the rib 8 immediately contacts the hollow body 2 when the occupant 9 contacts the arm rest 4 at the time of a side collision, the rib 8 immediately contacts the hollow body 2, so that the gas sealed inside is released immediately when the sealed state of the hollow body 2 is released. The crushing load when the impact by the occupant 9 is applied from the side of the armrest can be immediately reduced.
[0020]
6 and the rib 8 are formed integrally with the door trim 1. This eliminates the need to individually form the parts and eliminates the need to assemble the parts, and the automobile interior parts according to the present embodiment can be efficiently formed, thereby reducing the manufacturing cost.
[0021]
7. The automotive interior part in the present embodiment has several types of movement restricting means. That is, the front of the hollow body 2 is in contact with the side wall 6a, the rear of the vehicle is in contact with the vertical portion 4c of the armrest 4, and the lower side is in contact with the inner surfaces of the regulating rib 7 and the lower portion 4b of the armrest 4, thereby restricting the movement of the hollow body 2. ing. Thereby, even when a load is applied to the upper portion 4a of the armrest 4, the movement and unnecessary deformation of the hollow body 2 can be suppressed to a certain level or less. Although the automobile interior part in the present embodiment has several types of movement restriction means, it is not always necessary to provide all of them, and one or more movement restriction means may be used.
[0022]
8. One of the welding holes 2a is provided on the bottom surface of a concave portion in which a part of the surface of the hollow body 2 on the inner panel 3 side is recessed toward the vehicle interior side. Therefore, even when the end of the hollow body 2 on the vehicle rear side is in contact with the vertical portion 4c of the armrest 4 as in this embodiment, the hollow body 2 is welded at the rear of the vehicle and the hollow body 2 is attached. It becomes possible to hold.
[0023]
9. Since the hollow body 2 of this embodiment is molded by the blow molding method, the hollow body 2 can be manufactured easily and inexpensively.
[0024]
In the present embodiment, the armrest 4 of the door trim 1 is illustrated, but the invention described in the claims of the present application is not limited to this, and is disposed on the side of the rear seat occupant of, for example, a two-door car or a wagon car. It is also applied to trim parts having armrests such as rear side trim and other armrests. Further, in this embodiment, the hollow body 2 is welded to the door trim 1, but the hollow body 2 may be held by other holding means (for example, fastening with screws). Further, in the present embodiment, the sealed state of the hollow body 2 is released by using the ribs 8. However, for example, a needle or a conical protrusion may be used without being limited thereto.
[Brief description of the drawings]
1 is a perspective view of an interior part according to the embodiment. FIG. 2 is a perspective view of a hollow body and a rib according to the embodiment. FIG. 3 is a cross-sectional view taken along line AA of FIG. 4] BB cross-sectional view of the interior part according to the embodiment in FIG. 3 [FIG. 5] CC cross-sectional view of the interior part according to the embodiment in FIG. 3 [FIG. Illustration for explaining the behavior of interior parts according to an example [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Door trim 2 Hollow body 2a Fastening hole 2b Recess 3 Inner panel 4 Armrest 4a Upper part 4b Lower part 4c Vertical part 5 Closed space 7 Restriction rib 8 Rib

Claims (10)

A trim part mounted on the vehicle interior side of the inner panel of the vehicle body and having an armrest;
A gas is sealed inside, and has a hollow body capable of supporting a load applied to the upper part of the armrest,
In an automotive interior part having release means for releasing the sealed state of the hollow body when a predetermined impact is input ,
The automobile interior part according to claim 1, wherein the release means is a protrusion protruding toward the hollow body and provided between the inner panel and the trim part . The automotive interior part forms a substantially closed space with the armrest and the inner panel,
The hollow body is an automobile interior part according to claim 1, characterized in that installed between the symbolic closed space.   The interior part for automobiles according to claim 1, wherein the trim part has a holding means for holding the hollow body.   The automotive interior part according to claim 2, wherein the protrusion is provided on a vertical portion of the armrest.   The automotive interior part according to claim 2, wherein the protrusion is formed integrally with the trim part.   The automotive interior part according to claim 2, wherein the protrusion is a rib extending along the hollow body.   The interior part for automobiles according to claim 1, wherein the trim part has movement restriction means for the hollow body.   The interior part for automobiles according to claim 1, wherein the trim part is a door trim. The hollow body has at least one concave portion in which a part of the surface on the inner panel side of the hollow body is recessed toward the vehicle interior side,
The interior part for automobiles according to claim 2, wherein at least one of the holding means holds the bottom surface of the recess.   The interior part for automobiles according to claim 1, wherein the hollow body is formed by blow molding.

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