JPH04368249A - Mounting structure of resin component - Google Patents

Abstract

PURPOSE:To lower a level of a box part on the backside of a resin component. CONSTITUTION:A box part 6, whose one side side wall part opens as an opening part 7, is formed in the backside of a side cover 2, and a notch 9 continuing to this opening part 7 is formed in a seat wall part 8 of the box part 6. A nut 13 is clamped to a retainer plate 10 in advance, while an engaged piece 15 and a slip-stopping projection piece 16 are formed in it. When the side cover 2 is installed, the retainer plate 10 is inserted into from just the flank of the notch 9 and locked to the box part 6 with the engaged piece 15 and the slip- stopping projection piece 16, and a bolt 3 is clamped by the nut 13 tight enough after making the seat wall part 8 and the retainer plate 10 be flush with each other.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for resin parts used, for example, in fixing resin parts attached to an automobile to a mating vehicle body panel.

0002

2. Description of the Related Art As a mounting structure for resin parts of this type, a mounting structure for a bumper side portion is known, for example, as shown in Japanese Utility Model Publication No. 60-6362. In this bumper side mounting structure, as shown in FIGS. 4 to 6, a rectangular box part 52 is integrally formed on the back surface of the bumper side 51 in advance, and a retainer plate 53 inserted into the box part 52 is The nut 54 is welded and fixed in advance, and the retainer plate 53 is attached to the box part 52.
The bumper side 51 is fixed to the vehicle body panel 56 by inserting and fixing with the claw pieces 55, and then screwing bolts 57 inserted from the vehicle body panel 56 side into the nuts 54.

0003

[Problems to be Solved by the Invention] In the conventional structure as described above, the mounting wall portion 58 of the box portion 52 that sits on the vehicle body panel 56 and the retainer plate 53 are simply overlapped. , when considering the relationship between the mounting wall portion 58 and the retainer plate 53, at the overlapping portion of the two, the wall thickness dimension of the mounting wall portion 58 and the plate thickness dimension of the retainer plate 53 are added in the height direction of the box portion 52. Requires additional dimensions. Therefore, when it is desired to reduce the height of the box portion 52, at least the wall thickness of the mounting wall portion 58 becomes a constraint.
There is a limit to the reduction of the height dimension.

Furthermore, in the conventional structure, when trying to use a retainer plate 53 with bolts 59 fixed instead of nuts 54 as shown in FIG. Unless the overall length is smaller than the opening of the box portion 52, the bolt 59 cannot be passed through and inserted into the box portion 52, which limits the length of the bolt 59 that can be used. Undesirable.

[0005] The present invention has been made with attention to the above-mentioned problems, and it is possible to reduce the height of the box portion, and even when using a retainer plate with bolts, the height of the box portion can be reduced. An object of the present invention is to provide a structure in which the length of a bolt is not restricted by the size of the bolt.

[0006]

[Means for Solving the Problems] In the present invention, when fixing a resin component to a mating component, a box portion is formed on the back surface of the resin component, and a retainer plate having a member to be fastened is fitted into the box portion. , a structure in which the resin component is fixed to the counterpart component by engaging and fastening a fastening member inserted from the counterpart component side with the member to be fastened of the retainer plate, wherein one side wall portion is open on the back surface of the resin component. In addition to integrally forming the box part,
A notch continuous to the opening is formed in the center of the seating wall part of the box part that sits on the mating part, and the box part has a mounting seating surface that is fitted into the notch and is flush with the seating wall part. The retainer plate is bent and formed integrally with the retainer plate, and when the retainer plate is inserted from the opening side of the box part, the seating wall part is inserted between the retainer plate and the retainer plate. A locking piece that is inserted into the box part to fix the retainer plate to the box part, and a locking piece that is pressed into the locking groove on the box part side when the retainer plate is inserted from the opening side of the box part, and the retainer plate comes off from the box part. It is characterized by being equipped with a retaining protrusion that serves as a retainer.

[0007] When a nut is used as the member to be fastened, a bolt is used as the fastening member, and conversely, when a bolt is used as the member to be fastened, a nut is used as the fastening member. Further, a clip may be used as the member to be fastened and the fastening member.

[0008]

[Operation] According to this structure, when the retainer plate is inserted through the opening on one side wall side of the box part, the retainer plate is fixed to the box part by the locking piece and the retaining projection piece, and the retainer plate is fixed to the box part. By fitting into the notch formed in the seating wall of the seat, the seat becomes flush with the seating wall. For example, if a nut is fixed to the retainer plate in advance, by inserting a bolt from the mating part side and screwing it into the nut, the seating wall section is clamped between the mating part and the retainer plate. The resin part is firmly fixed to the mating part.

[0009] At this time, the seating wall portion and the retainer plate are flush with each other, so that they overlap each other in the thickness direction, so the dimensions required for the overlapping portion of the two are as follows. smaller than before.

[0010] Furthermore, since the retainer plate is inserted into the box part from right side of the notch, even if the bolt is fixed to the retainer plate, the length of the bolt is limited by the height dimension of the box part. Things will disappear.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing a first embodiment of the present invention, showing a structure in which a side cover, which is a resin part, is attached to a side step portion on the side surface of an automobile body.

As shown in FIGS. 1A to 1C, a bead-shaped groove 23 for positioning the side cover 2 and bolts 3 as fastening members are inserted into the vehicle body panel 1, which is the mating part. Bolt holes 4 are formed for attaching the side cover, and as will be described later, by aligning the protrusion 5 of the side cover 2 with the groove 23 and tightening the bolt 3 inserted from the vehicle body panel 1 side, the side cover can be removed. 2 is fixed.

A hollow box portion 6 is integrally formed on the back surface of the side cover 2 to protrude, and one side wall portion of both side walls of the box portion 6 is open as an opening portion 7, while the other side wall portion is open as an opening portion 7. A rectangular cutout 9 continuous from the opening 7 is formed in the center of the seating wall 8 that serves as the seating area for the side vehicle body panel 1 . A retainer plate 10, which will be described later, is fitted into the notch 9 so as to be flush with the seating wall 8.

The retainer plate 10 is made of a metal plate bent into a predetermined shape as shown in FIG. In addition to this, a nut 13 is welded and fixed to the back surface of the seat portion 11 as a member to be fastened.

[0015] Also, at one end of each leg 12, the leg 12 is
A locking piece 15 that engages with the recess 14 on the box part 6 side is formed by folding back the locking piece 15, and a retaining protrusion piece 1 is formed on one end of the seat part 11 so as to extend the locking piece 15.
6 is formed. As shown in FIG. 2, the retaining protrusion piece 16 engages with the locking groove 18 formed in the side wall part 17, and the jaw part 19 becomes a catch to remove the retainer from the box part 6. This prevents the plate 10 from falling off.

In such a mounting structure, (
As shown in B), the retainer plate 10 is inserted into the notch 9 of the seating wall 8 from the opening 7 side, and the locking piece 15 is engaged with the retaining protrusion 16 in the locking groove 18.
is aligned with the recess 14. As a result, the retainer plate 10 is prevented from coming off by the retaining protrusions 16, and the retainer plate 10 is boxed by inserting the seating wall 8 between the legs 12 and the locking pieces 15. The seat part 11 of the retainer plate 10 is aligned with and fitted into the notch part 9, and is flush with the seating wall part 8 on the box part 6 side, so that it can be attached to the vehicle body panel 1. A seat surface 20 will be formed.

Once the retainer plate 10 is positioned and fixed to the box portion 6 in this way, the side cover 2 is pressed against the vehicle body panel 1 while aligning the protrusion portion 5 of the side cover 2 with the groove portion 23. Insert the bolt 3 from the inside and tighten the bolt 3 to the nut 13. As a result, the mounting surface 20 composed of the seating wall section 8 and the seat section 11 comes into close contact with the vehicle body panel 1, and the seating wall section 8 is clamped between the leg section 12 of the retainer plate 10 and the vehicle body panel 1. By doing so, the side cover 2 is firmly fixed to the vehicle body panel 1.

As described above, according to this embodiment, the seating wall portion 8
Although the notch 9 is formed by a large cutout, the retainer plate 10 fits into the notch 9, so that the same mounting strength as the conventional one can be maintained.

Moreover, in the installed state, the thickness of the seating wall 8 is completely within the thickness of the retainer plate 10, so the dimensions at the overlapping portion of the retainer plate 10 and the seating wall 8 are set as conventional. This allows the height of the box portion 6 to be reduced.

FIG. 3 is a diagram showing a second embodiment of the present invention.
In this embodiment, a bolt 21 is welded and fixed to the retainer plate 10 as a member to be fastened, and a nut is used as a fastening member to be screwed onto the bolt 21.

In this embodiment, the same effects as in the first embodiment can be obtained, and in particular, when attaching the retainer plate 10 to the box portion 6, the retainer plate 10 to which the bolts 21 are fixed is placed directly beside the notch 9. It is only necessary to insert the bolt 21 from the retainer plate 10, and there is no need to insert the bolt 21 fixed to the retainer plate 10 through the hollow part of the box part 6 as in the conventional case. Therefore, the length of the bolt 21 is not restricted by the height dimension of the box part 6,
The length of the bolt 21 can be set freely.

[0022]

As described above, according to the present invention, the retainer plate is fixed to the seating wall by inserting the retainer plate from the side direction of the notch formed in the seating wall of the box part, and in this fixed state, the retainer plate is fixed to the seating wall. Since the retainer plate is configured to fit into the notch and be flush with the seating wall, the dimension required for the overlap between the retainer plate and the seating wall is smaller than before, and the height of the box part is can be made even smaller.

Furthermore, since the retainer plate is inserted and fixed from the side direction of the notch, even if the bolt is fixed to the retainer plate as a member to be fastened,
There is no need to pass the bolt through the hollow part of the box part as in the past. As a result, the length of the bolt is not restricted by the height dimension of the box portion, and there is an advantage that the length of the bolt can be set freely.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention, in which (A) is a cross-sectional view showing a state in which a side cover is fixed to a vehicle body panel, and (B) is a view showing the relationship between the side cover and a retainer plate. Exploded perspective view, (C) is a perspective view of the retainer plate.

FIG. 2 is a view taken in the b direction of FIG. 1(B).

FIG. 3 is a perspective view of a retainer plate showing a second embodiment of the present invention.

FIG. 4 is a sectional view showing a conventional bumper side part mounting structure.

FIG. 5 is a perspective view of the bumper side part of FIG. 4.

FIG. 6 is a perspective view of the retainer plate of FIG. 4.

FIG. 7 is a perspective view showing another example of a conventional retainer plate.

[Explanation of symbols]

1...Vehicle body panel (matching part) 2...Side cover (resin parts) 3...Bolt (fastening member) 6...Box part 7...Opening 8...Seating wall part 10...Retainer plate 13...Nut (member to be fastened) 15...locking piece 16...Protruding piece for preventing falling off 18...Latching groove 20…Mounting seat surface 21...Bolt (member to be fastened)

Claims (1)

[Claims] [Claim 1] When fixing a resin part to a mating part, a box part is formed on the back side of the resin part, and
A structure in which a retainer plate having a fastened member is fitted into this box part, and a fastening member inserted from the mating part side is engaged with and fastened to the fastened member of the retainer plate, thereby fixing the resin part to the mating part. A box part with one side wall part opening is integrally formed on the back surface of the resin part, and a notch part continuous to the opening part is formed in the center part of the seating wall part of the box part that seats on the mating part. A retainer plate is fitted into the box portion to form a mounting surface flush with the seating wall portion, and the retainer plate is bent and formed integrally with the retainer plate. A locking piece that fixes the retainer plate to the box portion by inserting the seating wall portion between the retainer plate and the retainer plate when the retainer plate is inserted from the opening side of the box portion; A mounting structure for a resin component, comprising a retaining protrusion that is press-fitted into a locking groove on a box part side and prevents a retainer plate from coming off from the box part when inserted from the side.