JP2005306289A - Interior parts for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve shock absorbing performance at the fitting part of an armrest in interior parts for an automobile fitted on the cabin face side of the side wall panel of a vehicle having the arm rest approximately in the central part thereof. <P>SOLUTION: A door trim (interior parts) 10 is fitted by locking the locking piece 44 of the arm rest 40 in a fitting hole 33 opened in the fitting seat 32 of the armrest support section 30 of a door trim body 20. A pressing rib 34 is protruded in the inner face of the armrest support section 30 to be opposed to this fitting hole 33, and this pressing rib 34 presses the locking piece 44 in a coming-off direction at the time of a collision, thereby facilitating the separation of the armrest 40 at the time of the collision. Furthermore, a thrust of an armrest core material 41 and an uncrushed part of an armrest pad 42 are solved, and besides, shock loads are absorbed effectively by bending and deforming the armrest support section 30. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to interior parts for automobiles such as door trims, rear side trims, luggage side trims, etc., which are interiorly provided on the interior side of a side wall panel of a vehicle, and more particularly, to interior parts for automobiles having improved shock absorption performance at the time of a side collision. .

  Normally, interior parts such as door trims, rear side trims, and luggage side trims are installed on the interior side of the vehicle side wall panel to enhance the aesthetics of the interior of the vehicle and impact load on the vehicle from the side, such as during a side impact. When is added, the interior part itself is bent and deformed to absorb a part of the impact load and reduce the load applied to the occupant.

  FIG. 10 shows a conventional door trim 1. The door trim 1 includes a door trim main body 2 made of a general-purpose synthetic resin, such as polypropylene resin, or an injection molded body, and an armrest portion of the door trim main body 2. The armrest 4 is mounted on the upper surface of the armrest support 3 bulging in the vicinity.

  Conventionally, as shown in FIG. 11, as the armrest 4, an armrest pad 4 b excellent in cushioning performance is laminated on the armrest core material 4 a, and furthermore, an armrest excellent in hand feeling and appearance design on the outer surface thereof. The skin 4c is encapsulated. Further, in order to attach the armrest 4 to the door trim main body 2, a locking piece 5 protruding downward on the lower surface of the armrest 4 is formed integrally with the armrest core 4 a, and this locking piece 5 is attached to the armrest support 3. The actual situation is that the armrest 4 is attached by engaging in the attachment hole 6 provided in the upper surface plate 3a (see, for example, Patent Document 1).

JP-A-9-175242 (second page, FIG. 3, FIG. 10)

  However, the conventional door trim 1 has a configuration in which the locking piece 5 provided on the lower surface of the armrest 4 is fixedly secured in the mounting hole 6 formed on the upper surface of the armrest support portion 3. When an impact is applied from the side of the vehicle, such as when the vehicle rolls over, the armrest pad 4b of the armrest 4 is compressed and deformed, but the armrest pad 4b remains uncrushed, and the armrest core 4a and the armrest support portion Since the upper surface plate 3a and the like in FIG. 3 are stretched, the reaction force applied to the occupant is large, and the ideal shock absorbing performance cannot be obtained.

  Further, when the rigidity of the armrest core material 4a and the armrest support portion 3 in the armrest 4 is reduced in order to improve the shock absorbing performance, or when the pad thickness is reduced in order to avoid the crush residue in the armrest pad 4b, The mounting strength of the armrest 4 and the shock-absorbing property when the elbow is put on must be sacrificed, and the interior parts for automobiles satisfying this point, the mounting strength of the armrest 4, the cushion performance, and the shock absorption performance Realization of was desired.

  The present invention has been made in view of such circumstances, and is an interior part that is attached to the interior side of a side wall panel of a vehicle, such as a door trim and a rear side trim, and includes an armrest on an armrest portion of a passenger An object of the present invention is to provide an automotive interior part that is excellent in shock absorbing performance at the time of a side collision and that can sufficiently secure the mounting strength and cushioning performance of an armrest.

  In order to achieve the above object, the present invention provides an interior trim body that is an interior part that is attached to the interior surface side of a side wall panel of a vehicle, and that has an armrest support portion that is molded into a required shape and bulges toward the interior surface side. And an armrest attached to the armrest support portion of the interior trim body, the armrest support portion in the interior trim body includes at least one side of the front side edge portion and the inner back side edge portion of the armrest A mounting seat extending in the vertical direction is formed along the edge portion, and a locking piece of the armrest is fixedly fixed in the mounting hole of the mounting seat so that the armrest is attached to the armrest support portion and confronts the mounting hole. In this way, the pressing rib protrudes from the inner surface of the armrest support, and the side is pressed by the external force applied to the armrest support. Use rib is pressed in the direction out of the locking piece in the mounting hole, the armrest by departing from the armrest support portion, characterized in that as resiliently deformed armrest support portions to absorb the impact load.

  Here, the interior part can be applied to a door trim, a rear side trim, a luggage side trim such as a wagon car, etc. attached to the interior side of the side wall panel of the vehicle. Furthermore, the interior part is composed of an armrest that is separate from the interior trim body, but the interior trim body can be a synthetic resin mold press molded body, injection molded body, etc. An armrest support portion that supports the armrest is formed in a bulging shape toward the vehicle interior side.

  On the other hand, the armrest is constructed by laminating an armrest pad such as polyurethane foam on the surface of the armrest core material to improve the cushioning performance, and encapsulating the outer surface of the armrest pad with an armrest skin such as cloth, nonwoven fabric, synthetic resin sheet, etc. However, it is also possible to use a synthetic resin molded body single structure or a structure in which only the skin is attached to the surface of the synthetic resin molded body.

  And as a mounting structure for attaching the armrest to the interior trim main body, a plurality of locking pieces protrude downwardly from the lower surface of the armrest along the front side edge and the inner back side edge of the armrest. The plurality of locking pieces are engaged with a mounting hole of a plate-shaped mounting seat formed in the inner surface of the armrest support portion and extending in the vertical direction, or a flange of the armrest support portion.

  Furthermore, the armrest support part of the interior trim body is formed with a pressing rib that protrudes from the mounting hole of the mounting seat. That is, for the mounting seat that engages the locking piece along the inner back side edge of the armrest lower surface, the pressing rib is located on the inner back side, and the locking piece along the front side edge of the armrest lower surface is The pressing rib is positioned on the front side of the mounting seat to be engaged. As a result, when an external force is applied to the armrest support part such as in a side collision, the pressing rib presses the locking piece in the releasing direction, and the locking piece falls out of the mounting hole, so that the armrest is removed from the armrest support part. Come off.

  Therefore, the armrest core material in the armrest is not stretched, and the problem of the remaining unrest of the armrest pad can be solved, and the armrest support portion can absorb a large impact load by being effectively bent and deformed.

  As a preferred embodiment of the present invention, the armrest support portion is formed with mounting seats on both the front side edge portion and the inner back side edge portion of the armrest, and is engaged in the mounting holes of the mounting seat. Since the armrest locking piece and the pressing rib that faces the mounting hole are set, the pressing force of both pressing ribs presses the corresponding locking piece due to the external force applied to the armrest support during a side collision. The armrest can be quickly removed.

  According to this embodiment, the locking pieces provided on the front side edge and the inner back side edge of the armrest, such as during a side collision, are pressed by the corresponding pressing rib, and can be easily removed from the armrest support. By coming off, the initial reaction force can be greatly reduced.

  Furthermore, as a preferred embodiment of the present invention, the armrest support portion is formed with a pressing rib corresponding to only a mounting seat provided along the inner back side edge portion of the armrest. The pressing rib presses the corresponding locking piece in the disengagement direction, and only the inner back side edge of the armrest is first removed from the armrest support part, so that the armrest has the upper cushioning part on the indoor surface side. It is characterized in that it is disengaged from the armrest support part while maintaining the inclined posture to face.

  According to this embodiment, when an impact is applied to the side of the vehicle from the outside, such as a side collision, only the inner inner locking piece of the armrest is pushed in by the pressing rib, and the armrest The armrest is removed while maintaining the inclined posture with the cushioning surface facing the interior side (occupant side) by removing only the locking piece on the inner back side while keeping the locking piece in the mounting hole in the locked state. Therefore, the buffering property is more excellent.

  As described above, according to the automotive interior component of the present invention, when an impact is applied from the outside to the side of the vehicle, such as in a side collision, the pressing rib provided on the inner surface of the armrest support portion in the interior trim body A problem that the armrest core material does not stretch and the armrest pad remains uncrushed by pushing the locking piece engaged in the mounting hole of the mounting seat in the disengagement direction and releasing the armrest from the armrest support. In addition, since the armrest support portion is easily bent and deformed, the impact load can be effectively absorbed, and the load applied to the occupant can be greatly reduced.

  Furthermore, according to the automotive interior part of the present invention, when a side collision occurs, the pressing rib provided on the interior trim body side pushes the locking piece of the armrest in the disengagement direction, and the armrest can be easily removed from the interior trim body. Since the armrest support part is effectively deflected and deformed by coming off, the armrest core material that can secure the mounting strength can be set to a suitable thickness as the armrest configuration, and the armrest pad can be made to have a thickened specification The armrest mounting strength and cushioning performance can be maintained satisfactorily.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of an automobile interior part according to the present invention will be described in detail with reference to the accompanying drawings.

  1 to 5 show a first embodiment of the present invention. FIG. 1 is an external view showing a door trim to which an automotive interior part according to the present invention is applied. FIG. 2 is a sectional view showing the structure of the door trim. FIG. 3 is an enlarged cross-sectional view showing a configuration of an armrest and an armrest support portion in the door trim, and FIGS. 4 to 5 are explanatory views showing an impact absorbing action in the armrest and the armrest support portion.

  1 and 2, a door trim 10 for an automobile is molded into a required curved surface shape, and is attached to an interior surface side of a door panel via a fixing means such as a clip (not shown), and a surface of the door trim body 20. The armrest 40 is generally configured from an armrest 40 attached to an armrest support portion 30 that is formed in a substantially central portion so as to bulge toward the vehicle interior side.

  More specifically, the door trim main body 20 is composed of a general-purpose synthetic resin injection molded body such as PP resin or ABS resin, a mold press molded body, or the like. The skin can be applied directly or via a cushion layer to enhance cushioning, appearance, and feel.

  The door trim main body 20 may be affixed with an inscribed sheet 21 such as a fabric sheet that further enhances decorativeness on the upper side (inscribed part) of the armrest 40. In addition, a door pocket opening 22 that can accommodate equipment is opened below the armrest support 30, and a speaker grille 23 is provided integrally with the door trim body 20 or separately from the front side of the door pocket opening 22. Yes.

  By the way, the door trim 10 for automobiles according to the present invention is devised in the mounting structure of the armrest 40, particularly when the impact strength such as a side collision is applied while maintaining the mounting strength and cushioning performance of the armrest 40 satisfactorily. The issue is to improve the shock absorption performance.

  The structure of the armrest 40 and the mounting structure of the armrest 40 according to the first embodiment will be described with reference to FIG. 3. The armrest 40 is made of a cushioning material such as polyurethane foam on the surface of the armrest core member 41 made of a synthetic resin plate. The armrest pad 42 is laminated, and the armrest skin 43 (made of woven fabric, non-woven fabric, synthetic resin sheet or the like) is encapsulated along the product surface. As a portion, a plurality of locking pieces 44 (a locking piece 44A positioned on the inner back side, a locking position positioned on the front side) are provided on the lower surface of the armrest core 41 along the inner back side edge portion and the front side edge portion of the armrest. A piece 44B) is formed to project downward.

  On the other hand, the armrest support portion 30 is provided such that the flange 31 extends in a horizontal plane inside the armrest support portion 30, and mounting seats 32 </ b> A and 32 </ b> B extending vertically on the upper surface of the flange 31 are the locking pieces 44 </ b> A and 44 </ b> A of the armrest 40. It is formed in a plate shape at a location corresponding to 44B, and mounting holes 33A and 33B are formed in the mounting seats 32A and 32B. The flange 31 is provided with an opening 31a so that when a horizontal external force is applied to the armrest support portion 30, bending deformation easily occurs.

  Furthermore, in the present invention, a pressing rib 34A is formed so as to protrude on the outer side (back side) of the mounting seat 32A in the vicinity of the mounting seat 32, that is, on the inner back side so that the pressing rib 34A faces the mounting hole 33A. As for the mounting seat 32B on the front side, a pressing rib 34B is formed to project from the front side of the mounting hole 33B so as to face the mounting hole 33B.

  Therefore, in the mounting structure of the armrest 40 shown in FIG. 3, it is not necessary to reduce the thickness of the armrest core material 41 or to form a groove in the armrest core material 41, and sufficient mounting strength can be obtained. Thus, the thickness of the armrest pad 42 can be increased, and the mounting strength and cushioning performance of the armrest 40 can be maintained well.

  Next, the operation of the mounting structure of the armrest 40 shown in FIG. 3 will be described with reference to FIGS. For example, when an impact is applied to the side of the vehicle, such as in a side collision, the occupant appropriately contacts the armrest support 30 in the direction of the arrow as shown in FIG. Since it bends to the panel side and the pressing ribs 34A and 34B press the locking pieces 44A and 44B locked in the mounting holes 33A and 33B inward, respectively, the locking pieces 44A and 44B Bends inward and disengages from the mounting holes 33A and 33B, and the armrest 40 is disengaged from the armrest support 30. Further, as shown in FIG. Further, the armrest support portion 30 can be easily bent and deformed, so that the impact load can be effectively absorbed.

  As described above, the armrest support 30 can be easily bent and deformed, and the impact load can be effectively absorbed. In addition, the armrest core material 41 in the armrest 40 does not stretch, and the armrest pad 42 remains uncrushed. Since it can be eliminated, good shock absorption performance can be obtained in a total sense.

  6 to 9 show a second embodiment in which the automotive interior part according to the present invention is applied to the door trim 10. FIG. 6 is a cross-sectional view of the main part showing the respective configurations of the armrest 40 and the armrest support 30. 7 and 8 are explanatory views showing the operation of the second embodiment, and FIG. 9 is a cross-sectional view showing a modification of the second embodiment. In addition, the same code | symbol is attached | subjected to the same part as Example 1, and the detailed description is abbreviate | omitted.

  In the second embodiment, the pressing rib 34A is provided only on the inner locking piece 44A with respect to the locking piece 44 in the armrest 40. Therefore, at the initial stage of the side collision, as shown in FIG. 7, if the armrest support 30 is bent and deformed to the panel side, only the pressing rib 34A pushes the inner locking piece 44A inward, The piece 44A is detached from the mounting hole 33A.

  Then, when the inner back side locking piece 44A is released, the front side locking piece 44B is still locked to the mounting hole 33B, so that the armrest 40 is located on the vehicle interior side as shown in FIG. It is in a state inclined to. Further, when an impact load is applied, as shown in FIG. 8, the front locking piece 44B is also disengaged from the mounting hole 33B, and the armrest 40 is in an inclined state with its buffer surface 40a facing the vehicle interior side. It will come off.

  Therefore, also in the second embodiment, when the armrest 40 is detached from the armrest support 30 at the time of a side collision, the armrest core 41 of the armrest 40 is not stretched, and the armrest pad 42 is not crushed. Thus, the armrest support 30 is easily bent and deformed, so that excellent shock absorbing performance can be obtained. In particular, since the armrest 40 is disengaged in an inclined state in which the buffering surface 40a is directed toward the indoor surface, the portion in contact with the occupant has cushioning properties, so that the buffering action is excellent.

  FIG. 9 is a cross-sectional view showing a modification of the second embodiment described above. In the structure of the inner back side edge portion of the armrest 40, the locking piece 44A is engaged with the mounting hole 33A of the mounting seat 32A. Since the pressing ribs 34A are arranged so as to confront each other, the same effect as the second embodiment can be expected.

  And the point which is different from 2nd Example is that the latching piece 45 of the front side edge part of the armrest 40 is employ | adopted as the simple structure by which the front edge part side flange 30a of the armrest support part 30 was latched. is there. That is, the mounting seat 32B on the front side of the armrest support portion 30 can be abolished, and the mold processing cost of a molding die or the like can be reduced. In particular, in this modification, when the armrest 40 is attached to the armrest support portion 30, The locking piece 45 of the armrest 40 is hooked to the front edge side flange 30a of the armrest supporting portion 30 and the armrest 40 is pivoted on the basis of the locking point to A method of attaching the engaging pieces 44A along the rear edge by engaging with the corresponding attaching seats 32A is adopted. Accordingly, since the armrest 40 is not attached by being pushed downward, there is an advantage that interference with the door trim body 20 can be prevented in advance and smooth attachment of the armrest 40 can be expected.

  In addition to the door trim 10 described in the first and second embodiments, the present invention can be applied to an armrest mounting structure provided in a rear side trim or a luggage side trim of a wagon car or the like. Furthermore, as the structure of the armrest, in Example 1 and Example 2, the armrest pad 42 was laminated on the surface of the armrest core material 41, and the surface was further encapsulated with the armrest skin 43. For example, it is possible to adopt a configuration in which a synthetic resin molded body alone or only a thick armrest skin is attached to the surface of the synthetic resin molded body.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external view which shows 1st Example which applied the interior component for motor vehicles based on this invention to the door trim. It is the II-II sectional view taken on the line in FIG. It is a principal part expanded sectional view which shows the structure of the armrest and armrest support part in the door trim shown in FIG. It is explanatory drawing which shows the state at the time of the impact load initial stage of the door trim shown in FIG. It is explanatory drawing which shows the state which the armrest removed from the impact load in the door trim shown in FIG. It is a principal part expanded sectional view which shows the armrest and armrest support part which show the 2nd Example which applied the interior component for motor vehicles based on this invention to the door trim. It is explanatory drawing which shows the state at the time of the impact load initial stage to the armrest shown in FIG. It is explanatory drawing which shows the state which the armrest removed at the time of the impact load to the armrest shown in FIG. It is sectional drawing which shows the modification of 2nd Example which applied the interior component for motor vehicles based on this invention to the door trim. It is an external view which shows the conventional door trim. It is explanatory drawing which shows the attachment structure of the armrest in the conventional door trim.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Door trim 20 Door trim main body 30 Armrest support part 30a Front edge side flange 31 Flange 31a Opening 32 (32A, 32B) Mounting seat 33 (33A, 33B) Mounting hole 34 (34A, 34B) Pressing rib 40 Armrest 40a Buffer surface 41 Armrest core material 42 Armrest pad 43 Armrest skin 44 (44A, 44B) Locking piece 45 Locking piece

Claims (3)

An interior trim (10) attached to an interior surface side of a side wall panel of a vehicle, the interior trim body (20) having an armrest support portion (30) formed into a required shape and bulging toward the interior surface, In an automotive interior part (10) comprising an armrest (40) attached to an armrest support (30) of an interior trim body (20),
The armrest support portion (30) in the interior trim body (20) has a mounting seat (32) extending in the vertical direction along at least one side edge portion of the front side edge portion and the inner back side edge portion of the armrest (40). In the mounting hole (33) of the mounting seat (32), the locking piece (44) of the armrest (40) is fastened and fixed so that the armrest (40) is attached to the armrest support (30). The pressing rib (34) protrudes from the inner surface of the armrest support part (30) so as to face the mounting hole (33), and the pressing rib (34) is applied by an external force applied to the armrest support part (30) at the time of a side collision. 34) presses the locking piece (44) in the mounting hole (33) in the disengagement direction, and the armrest (40) is detached from the armrest support (30), whereby the armrest support (30) Automobile interior part is bending deformation, characterized in that so as to absorb the impact load.   The armrest support portion (30) has mounting seats (32A, 32B) formed on both the front side edge portion and the inner back side edge portion of the armrest (40), and mounting holes of the mounting seats (32A, 32B). The locking pieces (40A, 40B) of the armrest (40) engaged in (33A, 33B) and the pressing ribs (34A, 34B) facing the mounting holes (33A, 33B) are respectively set. Thus, at the time of a side collision, due to the external force applied to the armrest support portion (30), both pressing ribs (34A, 34B) press the corresponding locking pieces (44A, 44B), and the armrest (40) is quickly released. The interior part for automobiles according to claim 1, which is configured as described above. The armrest support portion (30) is formed with a pressing rib (34A) corresponding only to the mounting seat (32A) provided along the inner back side edge of the armrest (40). When the pressing rib (34A) presses the corresponding locking piece (44A) in the disengagement direction, only the inner inner edge of the armrest (40) is first removed from the armrest support (30). 2. The interior part for an automobile according to claim 1, wherein the armrest (40) is detached from the armrest support part (30) while maintaining an inclined posture in which the upper buffer part (40 a) is directed toward the indoor surface side.

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