JP5698174B2 - Interior materials for vehicles - Google Patents

Description

  The present invention relates to a synthetic resin vehicle interior material represented by a door trim, rear side trim and the like of an automobile.

  In a door trim of an automobile, for example, as shown in Patent Document 1, a clip having a locking claw is protruded on the back surface, and an attached part such as a buffer part is fixedly fixed by the clip. What is made is known.

JP 2011-230603 A

  Attached parts to be mounted on the back of the trim are provided with a plurality of bracket pieces in the vicinity of the bottom edge on the circumferential side, and the locking holes formed in the bracket pieces are inserted into the above-mentioned clips and fixed to the locking claws. Like to do.

  Therefore, the clip is provided for one attached part corresponding to the number of brackets in the vicinity of the peripheral bottom edge.

  The door trim is molded by a mold having a core mold and a cavity mold, and the clip is integrally formed on the back surface of the door trim by the mold.

  As described above, this clip is provided with the locking claw, and this locking claw is an undercut that intersects the mold release direction of the door trim mold, so that the clip molding portion of the mold has a slide piece structure. The clip is formed by the slide piece.

  Accordingly, when the number of attached parts on the rear surface of the trim increases, the number of fixing points due to the clip engagement increases, and the die cost increases.

  In addition, when a plurality of accessory parts are arranged close to the rear surface of the trim, a space for constituting a slide piece structure for clip molding of the accessory parts corresponding to the molding die can be taken on the side where the plurality of accessory parts are adjacent to each other. It will disappear.

  For this reason, on the side where a plurality of attachment parts are adjacent, it is necessary to adopt a fixing means such as ultrasonic welding instead of clip engagement, which is disadvantageous in terms of cost.

  Accordingly, the present invention provides an interior material for a vehicle that can attach and fix a plurality of attachment parts in multiple stages with a single clip and is effective when a plurality of attachment parts are arranged adjacent to each other on the back surface.

Engaging Ru car dual interior material to the present invention, the clip having a locking claw at the tip to the back of the synthetic resin trim projecting and provided on the bottom edge near the peripheral side of the attached component with respect to said clip By inserting a locking hole of the bracket piece and elastically engaging with the locking claw, a plurality of attached parts are attached to the rear surface of the trim, and the attached parts are adjacent to each other. On the finished side, one clip is shared and the bracket pieces of these attached parts can be elastically engaged.

The adjacent bracket pieces are arranged in different heights and sizes so that one bracket piece and the other bracket piece overlap each other.
On the other hand, the shared clip includes a plurality of locking claws that define different engagement height positions,
The locking claw having a low engagement height position is used for engaging and fixing the one bracket piece, and a pair of the engagement claws are formed facing each other so that the engagement edge faces outward, and the engagement height position is high. A locking claw is formed at an intermediate position between the pair of locking claws having a low locking height position for fixing the other bracket piece.
As a result, the engaging clip of the one bracket piece is inserted into the engaging claw having a low engaging height position of the common clip to be elastically engaged, and subsequently the engaging claw having a high engaging height position. The main feature is that the engaging holes of the other bracket piece are inserted and elastically engaged, and the plurality of bracket pieces are elastically engaged in multiple stages .

  According to the present invention, the plurality of engaging claws provided on the clip define different engaging height positions, and separate attachment parts can be engaged and fixed in multiple stages by these engaging claws.

  Therefore, when a plurality of attachment parts are arranged close to the back surface of the vehicle interior material, the attachment parts can be engaged and fixed in multiple stages by the clip on the side where the plurality of attachment parts are adjacent to each other. The total number of clips to be molded can be reduced to reduce the mold cost.

  In addition, as described above, even in a portion where a plurality of attached parts are adjacent to each other, both attached parts can be fixed by clip engagement, so that another fixing means such as an ultrasonic welding means is not necessary, and it is advantageous in terms of cost. Can do.

Explanatory drawing which looked at the door trim as a vehicle interior material made into the object of this invention from the back side. The enlarged view which shows A range part of FIG. The perspective view which shows the clip in the B range part of FIG. Sectional drawing which follows the CC line | wire of FIG. Sectional drawing which follows the DD line | wire of FIG.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings by taking a door trim as an interior material for a vehicle and a shock-absorbing part as an attached part attached to the back of the trim.

  The door trim 1 of the present embodiment shown in FIG. 1 is molded with an appropriate synthetic resin material and is mounted so as to cover the door inner panel surface outside the figure.

  A plurality of cushioning parts 11 and 21 are disposed adjacent to the rear surface of the door trim 1 so as to absorb the collision energy by being crushed and deformed at the time of a vehicle side collision or the like, interposed in a space between the door inner panel and the like. It is.

  Each of the shock-absorbing parts 11 and 21 is made of an appropriate synthetic resin material, and is formed in a rectangular cylinder shape having a taper that opens on one side and tapers on the closed end side.

  These shock-absorbing parts 11, 21 are arranged horizontally with the open end side facing the rear surface of the door trim 1, and are fixed to the rear surface of the impact area of the door trim 1 by a clip as will be described later.

  As a result, when a door inner panel (not shown) is deformed and moved to the vehicle interior side in the event of a vehicle side collision or rollover, an external force is applied to the shock-absorbing parts 11 and 21 in the axial direction. Cracks are generated in the peripheral ridge lines starting from the notches 12 and 22 at the corners, and crushing in the axial direction absorbs collision energy.

  The shock-absorbing parts 11 and 21 are formed by projecting a plurality of abutting pieces 13 and 23 on the bottom edge on the open end side in the radially outward direction, and the crushing reaction force is appropriate by the bottom edge and the abutting pieces 13 and 23. To get to.

  A plurality of bracket pieces 14 and 24 project outward from the vicinity of the bottom edge on the circumferential side of the cushioning parts 11 and 21, respectively.

  The bracket pieces 14 and 24 are formed in parallel with the closed ends of the shock-absorbing parts 11 and 21, and their peripheral edges are flanged up to be reinforced.

  Each bracket piece 14, 24 is provided with locking holes 15, 25. On the back of the door trim 1, clips 2 are projected from positions corresponding to the locking holes 15, 25 of these brackets 14, 24, respectively. It is.

  The clip 2 has a locking claw 3 at the tip, presses the buffer parts 11 and 21 against the back of the door trim 1, and inserts the locking holes 15 and 25 of the bracket pieces 14 and 24 into the clip 2 to each bracket. The buffer parts 11 and 21 are fixed to the back surface of the door trim 1 by being engaged with the locking claw 3 by the elastic action of the pieces 14 and 24.

  The locking claw 3 of the clip 2 is formed on one side of the front end portion of the flat plate-like clip post 4, and the locking edge 3 a is elastically engaged with the locking holes 15 and 25 described above, thereby 14, 24 engaging height positions are defined.

  Here, in a portion where the shock-absorbing parts 11 and 21 are adjacent to each other, one clip 2 is shared so that the bracket pieces 14 and 24 of the shock-absorbing parts 11 and 21 can be elastically engaged.

  As illustrated in FIGS. 3 to 5, the shared clip 2 includes a plurality of locking claws 3 </ b> A and 3 </ b> B that define different engagement height positions.

  The adjacent bracket pieces 14 and 24 have different arrangement heights and sizes so that, for example, the one bracket piece 14 and the other bracket piece 24 overlap each other.

  On the other hand, in the present embodiment, the common clip 2 is configured such that the locking claw 3A having a low engagement height position is used for fixing the bracket piece 14 and the pair of locking claws 3A, 3A are the locking edges 3a, 3a. Are formed so as to face outward, and the engaging claw 3B having a high engagement height is formed at an intermediate position between the engaging claws 3A and 3A for engaging and fixing the bracket piece 24. .

  Specifically, the clip post 4 of the common clip 2 is formed in a U-shape, and locking claws 3A and 3A are formed in the U-shaped opposite portion, and the locking claw is formed in the central portion of the U-shape. 3B is formed.

  The locking claw 3B is formed inward so that the locking edge 3a faces the inner side of the U-shape so that the mold releasing directions of the locking claw 3A and the locking claw 3B are coincident with each other.

  That is, the door trim 1 is molded by, for example, a mold having a cavity mold that molds the front side and a core mold that molds the back side, and the clip 2 has a locking claw 3 whose mold release direction is the mold. Therefore, the clip 2 is formed by a slide piece provided in the core mold.

  Therefore, by forming the locking claw 3B inwardly in the center of the U-shape of the clip post 4, the direction of the locking claw 3A and the direction of the locking claw 3B are aligned, and one slide Simultaneous molding by piece is established.

  In this way, the common clip 2 is configured to include a plurality of locking claws 3A and 3B that define different engagement height positions, so that the two buffer parts 11 and 21 are adjacent to each other. The locking claw 3A, 3A of the common clip 2 having a low engagement height position is inserted into the engagement hole 15 of the bracket piece 14 for elastic engagement, and then the engagement claw 3B having a high engagement height position. The locking hole 25 of the bracket piece 24 is inserted into and is elastically engaged.

  As a result, the bracket pieces 14 and 24 can be fastened and fixed to the single clip 2 in multiple stages.

  The example shown in FIGS. 3-5 shows the case where the locking hole 15 of the bracket piece 14 is formed with a large opening area so that the two locking claws 3A and 3A and the locking claw 3B can be inserted. ing.

  Further, since the clip post 4 is projected in a U-shape on the back surface of the non-parallel portion of the door trim 1 which is inclined with respect to the door inner panel (not shown), the engagement claw 3A of the U-shaped opposite portion is shown. , 3A change the protrusion height from the inclined back surface so that the parallelism of the engagement height position can be obtained.

  As described above, according to the structure of the present embodiment, the plurality of locking claws 3A and 3B provided on the clip 2 define different engagement height positions, and these locking claws 3A and 3B respectively. The bracket pieces 14 and 24 of the other cushioning parts 11 and 21 can be engaged and fixed in multiple stages.

  Therefore, when a plurality of cushioning parts 11 and 21 are disposed close to the back of the door trim 1, a common clip provided with the locking claws 3A and 3B is provided on the side where the plurality of cushioning parts 11 and 21 are adjacent to each other. 2, the bracket pieces 14 and 24 of the both shock-absorbing parts 11 and 21 can be engaged and fixed in multiple stages, and the total number of clips integrally molded on the rear surface of the trim can be reduced.

  As a result, the mold cost for molding the door trim 1 can be reduced, and the cost can be advantageously obtained.

  In addition, even when the two buffer parts 11 and 21 are adjacent to each other as described above, both the parts 11 and 21 can be engaged and fixed in multiple stages by the common clip 2, so that another fixing such as ultrasonic welding means is possible. No means is required, and this aspect can also be advantageously obtained in terms of cost.

  Although the door trim 1 has been described as an example in the above embodiment, the present invention can be applied to other vehicle interior materials such as a roof trim, a rear side trim, and a trunk trim.

  Moreover, although the resin shock-absorbing parts 11 and 21 are illustrated as the accessory parts, it is needless to say that other functional parts may be used.

1 ... Door trim (vehicle interior material)
2 ... Clips 3, 3A, 3B ... Locking claws 4 ... Clip posts 11, 21 ... Buffer parts (attached parts)

Claims (2)

A clip provided with a locking claw at the tip is protruded from the back of the synthetic resin trim, and a locking hole of a bracket piece provided in the vicinity of the bottom edge on the peripheral side of the accessory part is inserted into the clip. A structure in which a plurality of attached parts are attached in close proximity to the back surface of the trim by elastically engaging the locking claws,
On the side where the plurality of attachment parts are adjacent, one clip is shared and the bracket pieces of these attachment parts can be elastically engaged,
While the bracket pieces on the adjacent side have different arrangement heights and sizes so as to be in an arrangement relationship such that one bracket piece overlaps the other bracket piece,
The shared clip includes a plurality of locking claws that define different engagement height positions,
The locking claw having a low engagement height position is used for engaging and fixing the one bracket piece, and a pair of the engagement claws are formed facing each other so that the engagement edge faces outward, and the engagement height position is high. A locking claw is used for locking and fixing the other bracket piece, and is formed at an intermediate position between the pair of locking claw having a low locking height,
A locking hole of the one bracket piece is inserted into a locking claw having a low engaging height position of the common clip, and then elastically engaged, and subsequently, the locking claw having a high engaging height position is connected to the other engaging claw. An interior material for a vehicle characterized by inserting a locking hole of a bracket piece and elastically engaging the plurality of bracket pieces in multiple stages .   The common clip is formed with a U-shaped clip post on one side of the tip, and a locking claw having a low engagement height is formed on the opposite side of the U-shape. 2. The locking claw having a high engagement height position is formed inwardly so that the locking edge faces the inner side of the U-shape at the center portion of the U-shape. Interior material for vehicles.

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