JP2008143366A - Vehicular resin mold and its installing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular resin mold and its installing structure further easily installable on a vehicle body. <P>SOLUTION: A rear bumper 1 as the vehicular resin mold is integrally molded with a body 1b having a design surface 1a being an outside surface when installed in the vehicle body 2 and an installing part 1e projected to the opposite side of the design surface 1a. The installing part 1e is projected in a tongue piece shape toward the opposite side of the design surface 1a, and work for installing the installing part 1e in a vehicle body side installing part 2b can be performed from the vertical direction of a vehicle. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a resin molded product for a vehicle and its mounting structure.

Conventionally, a resin molded product for a vehicle in which a molded product body having a design surface that becomes an outer surface when attached to a vehicle body and a mounting portion projecting on the opposite side of the design surface of the molded product body are integrally formed. As a product, for example, one disclosed in Patent Document 1 is known.
JP 2004-299597 A

  However, the technique disclosed in Patent Document 1 is configured to perform the work of attaching the mounting portion of the resin molded product for the vehicle to the vehicle body side from the vehicle front-rear direction, and the tool and fingers are the vehicle body and other parts. There is a problem that it is difficult to perform the installation work.

  Then, an object of this invention is to obtain the resin molded product for vehicles which can be attached to a vehicle body more easily, and its attachment structure.

  In the present invention, the reinforcement provided on the vehicle body side of the outer wall portion with a gap between at least the vertical wall portion of the outer wall portion and the outer wall portion having a design surface that becomes the outer surface when attached to the vehicle body. A molded product body having a portion and a mounting portion projecting from the opposite side of the design surface of the molded product body, wherein the mounting portion is the reinforcing member. The main feature is that the part is protruded in the form of a tongue piece toward the opposite side of the design surface, and the operation of attaching the attachment part to the vehicle body side can be performed from the vehicle vertical direction.

  According to the present invention, the mounting portion protrudes in a tongue-like shape from the molded product main body toward the opposite side of the design surface, so that the work of mounting the mounting portion on the vehicle body side can be performed from the vehicle vertical direction. In addition, it is possible to suppress the interference of fingers, tools, etc. with the vehicle body and other parts, and to perform the mounting operation more easily.

  Further, when the tongue-shaped attachment portion as in the present invention is provided directly on the outer wall portion, resin molding defects such as so-called “sinks” are likely to occur on the outer surface (design surface) of the outer wall portion. In this regard, in the present invention, a reinforcing portion is provided on the vehicle body side of the outer wall portion with a gap with respect to at least the vertical wall portion of the outer wall portion, and a tongue-shaped attachment portion is protruded from the reinforcing portion. The sink marks can be suppressed. That is, the configuration according to the present invention makes it possible to more easily perform the mounting operation while suppressing resin molding defects, and also to effectively reinforce the molded product main body.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is an exploded perspective view of a mounting structure for a resin molded product for a vehicle according to the present embodiment, FIG. 2 is an exploded perspective view of a resin molded product for a vehicle, and FIG. 3 is an enlarged view of a portion A in FIG. 4 is an enlarged view of a portion A of FIG. 2 shown in a state where the protector is mounted, and FIG. 5 is a cross-sectional view taken along line V-V of FIG. In the present embodiment, the case where the vehicle resin molded product is implemented as a vehicle rear bumper is illustrated. In each figure, FR indicates the front in the vehicle front-rear direction, UP indicates the vehicle vertical direction upper side, and RH indicates the vehicle width direction right side.

  A rear bumper 1 as a vehicle resin molded product formed by appropriately molding a synthetic resin is formed in a substantially C shape in a plan view and covers the lower edge portion of the rear portion of the vehicle body 2 as shown in FIG. It has the design surface 1a used as an outer surface when it attaches to the vehicle body 2.

  As shown in FIG. 2, the main body portion (molded product main body) 1b of the rear bumper 1 includes a plate-like outer wall portion 1c and a rib 1d as a reinforcing portion for reinforcing the outer wall portion 1c. A tongue-shaped attachment portion 1e is provided so as to project from the opposite side of the design surface 1a.

  As shown in FIG. 2, the outer wall portion 1 c is substantially C-shaped to bulge toward the outside of the vehicle body (in the direction away from the vehicle body 2; in this case, the rear in the vehicle front-rear direction) at a portion corresponding to the rear portion of the vehicle body 2. It has a cross-sectional shape and extends along the vehicle width direction. And this outer wall part 1c is bent toward the vehicle front-back direction front corresponding to the rear side edge of the vehicle body 2 from the vehicle width direction end part, and has a substantially L-shaped cross section in this part. .

  3 and 5, the rib 1d is provided on the vehicle body 2 side of the outer wall 1c with a gap (slit 1h) between the rib 1d and the outer wall 1c, and the outer wall 1c is substantially C-shaped. A plate-like rib wall 1f provided so as to substantially block the cross section of the belt, and a belt-plate shape erected between the upper portion and the lower portion of the outer wall portion 1c along the vehicle body side edge of the rib wall 1f. 1 g of the inner wall. As shown in FIG. 5, the slit 1h is formed in a band shape along the outer wall portion 1c between the rib wall 1f and the outer wall portion 1c. At this time, the slit 1h is provided corresponding to at least the vertical wall portion (B portion in FIG. 5) extending in the substantially vertical direction of the outer wall portion 1c, and at least the vertical wall portion that is most noticeable in the design surface 1a. It is preferable to suppress molding defects such as “sink marks”.

  As shown in FIGS. 3 and 5, the rib wall 1f is formed with a recessed portion 1i that is drawn toward the outside of the vehicle body, and the main body portion corresponds to the recessed portion 1i. A mounting portion 1e for attaching 1b to the vehicle body 2 is disposed. Specifically, the inner wall portion 1g is bent in a substantially S shape along the recessed portion 1i, and a tongue piece having a substantially equal width to the inner wall portion 1g from a portion of the inner wall portion 1g drawn toward the vehicle rear side. A shaped mounting portion 1e is provided so as to protrude toward the opposite side of the design surface 1a (in the present embodiment, forward in the vehicle front-rear direction). The mounting portion 1e has a posture in which the front and back surfaces are oriented substantially in the vehicle vertical direction.

  As shown in FIGS. 1 and 5, the vehicle body panel (rear panel) 2a of the vehicle body 2 is provided with a vehicle body side mounting portion 2b as a mounting target of the mounting portion 1e. (Backward in the direction) and projecting in the form of a tongue, and these can be fastened by using a screw 3 as a coupling tool in a state where the mounting portion 1e and the vehicle body side mounting portion 2b are overlapped. . Specifically, a through hole 2c is formed in the vehicle body side attachment portion 2b, while a notch portion 1j is formed in the attachment portion 1e, and a screw 3 inserted through the notch portion 1j and the through hole 2c; By screwing the nut 4, the attachment portion 1 e and the vehicle body side attachment portion 2 b are fastened. The nut 4 may be fixed by welding or the like to the vehicle body side mounting portion 2b, or may not be fixed. Moreover, the recessed part 1p is formed in the part just under the attaching part 1e of the outer wall part 1c, and it is trying to perform attachment work more easily.

  Incidentally, as described above, the rear bumper 1 is obtained by molding a synthetic resin. Among these, the rib 1d and the mounting portion 1e are molded using a slide mold. Here, in this embodiment, as shown in FIG. 3, the recess 7 surrounded by the outer wall 1c, the inner wall 1g, and the rib wall 1f and the notch 1j formed in the mounting portion 1e, the opening direction thereof. S is matched. Accordingly, the rib 1d and the attachment portion 1e having the cutout portion 1j can be formed at a time by punching in the opening direction S using one slide die.

  Further, the front end side of the mounting portion 1e is bent toward the side away from the vehicle body side mounting portion 2b, and a guide portion 1k is formed as an inclined wall surface obliquely downward, and the front end side of the vehicle body side mounting portion 2b is the mounting portion. A guide portion 2d is formed as an inclined wall surface that is bent toward the side away from 1e and goes obliquely upward. These guide portions 1k and 2d guide the attachment portion 1e and the vehicle body side attachment portion 2b more smoothly to a predetermined attachment position (position shown in FIG. 5) when attaching the rear bumper 1 to the vehicle body 2. The mounting portion 1e and the vehicle body side mounting portion 2b are prevented from having an opposite positional relationship.

  Further, as shown in FIGS. 3 and 5, the inner wall 1g is formed with a portion extending substantially straight in the vehicle vertical direction in a certain section immediately above the mounting portion 1e. The vertical surface 1m of the vehicle body 2 faces the vertical surface (substantially vertical surface) 2e of the vehicle body panel 2a of the vehicle body 2 substantially in parallel with a gap 8 therebetween. The gap 8 is narrower than the gap in the recessed portion 1i, so that a minute gap can be ensured more reliably even when dimensional tolerance (manufacturing variation) is taken into consideration.

  By the way, as shown in FIG. 2, the surface of the rear bumper 1 on the vehicle body 2 side is covered with a band plate-like protector 5, and scratches or dents caused by bouncing stones, coating cracks on the design surface 1 a associated with the dents, Peeling and the like are suppressed. The protector 5 is screwed to the rear bumper 1 with a screw 6 and is locked to the mounting portion 1e. That is, as shown in FIGS. 2, 4 and 5, the protector 5 is formed with a substantially rectangular insertion port 5a through which the attachment portion 1e is inserted, while a projection 1n is formed on the base side of the attachment portion 1e. In the attached state shown in FIGS. 4 and 5, the attachment portion 1 e is inserted through the insertion port 5 a up to the root portion, and the protector 5 is locked by the protrusion 1 n to prevent it from coming off.

  According to the above embodiment, the attaching part 1e is protruded in the shape of a tongue piece toward the opposite side of the design surface 1a, and the work for attaching the attaching part 1e to the vehicle body side attaching part 2b is performed as a part or the like. Since it is possible to perform from the lower side of the vehicle where there is little open interference and a free space is secured, it is possible to suppress the interference of fingers and tools etc. with the vehicle body and other parts, etc. become able to.

  Further, when the tongue-shaped attachment portion 1e as in this embodiment is provided directly on the outer wall portion 1c, there is a resin molding defect such as so-called “sink” on the outer surface (design surface 1a) of the outer wall portion 1c. However, in this embodiment, a rib as a reinforcing portion is provided on the vehicle body 2 side of the outer wall portion 1c by opening a slit 1h with respect to at least the vertical wall portion (B portion in FIG. 5) of the outer wall portion 1c. Since the rib 1d is provided with the tongue-shaped attachment portion 1e, it is possible to suppress the occurrence of molding defects such as sink marks due to the provision of the attachment portion 1e. That is, according to this embodiment, it is possible to more easily perform the mounting operation while suppressing resin molding defects, and it is also possible to effectively reinforce the main body 1b.

  Further, according to the present embodiment, the rear bumper 1 has the vertical surface 1m opposed to the vertical surface 2e of the vehicle body panel 2a with a gap 8 at a position directly above the mounting portion 1e. Immediately above the portion 1e, the vertical surfaces 1m and 2e come into contact with each other, and the collision load can be received in a more dispersed state by suppressing the local action on the mounting portion 1e. Can absorb.

  In addition, according to the present embodiment, the rear bumper 1 includes the outer wall portion 1c having a cross-sectional shape that bulges outward from the vehicle body, and the plate-like rib wall 1f that substantially blocks the cross-sectional shape of the outer wall portion 1c. The rib wall 1f is formed with a recessed portion 1i drawn toward the outside of the vehicle body, and the mounting portion 1e is disposed in the recessed portion 1i, so that the recessed portion 1i is not formed. Compared to the case, it is possible to suppress the mounting portion 1e from projecting to the vehicle body 2 side, and it is possible to lay out the mounting portion 1e more easily, and it becomes easier to secure a space for a coupling tool or a tool. There is also.

  In addition, according to the present embodiment, since the recessed portion 1i is formed, a reduction in impact absorbing performance due to the recessed portion 1i in the rib wall 1f is compensated by the mounting portion 1e (and the vehicle body side mounting portion 2b). The shock absorbing performance is further improved by the height position where the recessed portion 1i is formed and the height position where only the rib wall 1f is provided without the recessed portion 1i between the outer wall portion 1c and the inner wall portion 1g. Therefore, the collision load can be received in a more dispersed state by suppressing the local application of the collision load at the time of the vehicle collision, and the load can be absorbed more efficiently.

  Further, according to the present embodiment, the rib wall 1f is formed as the bottom wall of the recess 7 surrounded by the outer wall 1c and the inner wall 1g provided on the vehicle body side edge of the rib wall 1f. 1e is formed with a notch 1j through which a coupler for attachment to the vehicle body 2 passes, and the opening direction S of the recess 7 and the opening direction S of the notch 1j coincide with each other. Thus, by cutting the die in the opening direction S, the rib 1d and the attachment portion 1e having the cutout portion 1j can be formed at a time.

  Moreover, according to this embodiment, since the protector 5 which covers the opposite side of the design surface 1a of the rear bumper 1 is locked to the mounting portion 1e, the mounting operation of the protector 5 can be performed more easily, and a screw or the like can be connected. The number of parts of the tool can be reduced, and the manufacturing cost can be reduced.

  Further, according to the present embodiment, since the guide portion 1k that guides toward the attachment position to the vehicle body 2 is provided in the attachment portion 1e, the operation of attaching the rear bumper 1 to the vehicle body 2 can be performed more easily and smoothly. it can.

  Further, according to the present embodiment, since the guide portion 2d for guiding the rear bumper 1 toward the mounting position on the vehicle body 2 is provided in the vehicle body side mounting portion 2b, the work of mounting the rear bumper 1 to the vehicle body 2 can be made easier and It can be performed more smoothly.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made.

  For example, in the above embodiment, the case where the resin molded product for a vehicle is configured as a rear bumper is illustrated, but the present invention can also be implemented as a front bumper or other parts, and is opened above the mounting portion. The space may be secured so that the mounting work can be performed from above the vehicle.

  Moreover, in the said embodiment, although the vertical surface was arrange | positioned just above the attachment part in the molded article main-body part, this may be arrange | positioned reversely, and attachment work using a fastener etc. is carried out from the vehicle upper part. You may make it perform. Further, the coupler is not limited to the above-described screw, and a clip, a rivet, or the like can be used.

It is a disassembled perspective view of the attachment structure of the resin molded product for vehicles concerning embodiment of this invention. It is a disassembled perspective view of the resin molded product for vehicles concerning the embodiment of the present invention. It is an enlarged view of the A section of FIG. It is an enlarged view of the A section of Drawing 2 shown in the state where a protector was equipped. FIG. 5 is a VV cross-sectional view of FIG. 2.

Explanation of symbols

S Opening direction 1 Rear bumper (resin molded product for vehicles)
1a Design surface 1b Body (molded product body)
1c outer wall part 1d rib (reinforcement part)
1e mounting portion 1f rib wall 1i recessed portion 1j notched portion 1k guide portion 1m vertical surface 1n protrusion 2 vehicle body 2a vehicle body panel 2b vehicle body side mounting portion 2c through hole 2d guide portion 2e vertical surface 3 screw (joint)
5 Protector

Claims (8)

A molded article main body having an outer wall portion having a design surface that becomes an outer surface when attached to a vehicle body, and a reinforcing portion provided on the vehicle body side of the outer wall portion with a gap with respect to at least a vertical wall portion of the outer wall portion And a resin molded product for a vehicle in which a mounting portion protruding on the opposite side of the design surface of the molded product body is integrally molded,
The mounting portion is provided in a tongue-like shape projecting from the reinforcing portion toward the opposite side of the design surface, and the work of mounting the mounting portion on the vehicle body side can be performed from the vehicle vertical direction. Resin molded product for vehicles.   2. The vehicle resin according to claim 1, wherein the molded product main body has a vertical surface that is opposed to the vertical surface of the vehicle body panel with a gap at a position directly above or directly below the mounting portion. Molding. The outer wall portion has a cross-sectional shape that bulges toward the outside of the vehicle body,
The reinforcing portion includes a plate-like rib wall that substantially blocks the cross-sectional shape of the outer wall portion,
The said rib wall is formed with the recessed part pulled in toward the vehicle body outward direction, The said attaching part is arrange | positioned at the said recessed part, The Claim 1 or 2 characterized by the above-mentioned. Resin molded products for vehicles. The rib wall is formed as a bottom wall of a recess surrounded by the outer wall portion and an inner wall portion provided on a vehicle body side edge of the rib wall,
The attachment portion is formed with a notch that penetrates a coupler for attachment to the vehicle body,
The resin molded product for a vehicle according to claim 3, wherein an opening direction of the concave portion and an opening direction of the notch portion are matched.   The vehicle molded resin product according to any one of claims 1 to 4, wherein a protector that covers an opposite side of the design surface of the molded product body is locked to the mounting portion. While the protector is formed with an insertion port, the attachment portion has a protrusion,
6. The resin molded product for a vehicle according to claim 5, wherein the protector is locked by the protrusion and prevented from coming off while the attachment portion is inserted through the insertion port.   The resin molded product for a vehicle according to any one of claims 1 to 6, wherein a guide portion that guides toward a mounting position on the vehicle body is provided in the mounting portion. A vehicle resin molded product mounting structure for mounting the vehicle resin molded product according to any one of claims 1 to 7 to a vehicle body,
The vehicle body is provided with a vehicle body side attachment portion to be attached to the attachment portion,
A mounting structure for a vehicle resin molded product, wherein the vehicle body side mounting portion is provided with a vehicle body side guide portion for guiding the vehicle resin molded product toward a mounting position on the vehicle body.

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