JPH0610167Y2 - Fixed structure of molded products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to a structure for fixing an iron plate clip to an interior trim part of an automobile or the like.

<Prior art> For example, a side body trim of an automobile is molded of a resin material, and an iron plate clip is fitted into the integrally formed mounting portion on the back surface thereof, and the iron plate clip is fitted into a mounting hole of a body inner panel. The side body trim is attached to the body.

FIG. 10 shows an example of a structure for fixing an iron plate clip to such a resin molded product. Resin molded product body 1
The mounting portion 2 is integrally formed on the back surface of the. The mounting portion 2 is provided with a central rib 3 that is erected high in the die-cutting direction A of the main body 1, contact ribs 4 provided on both lower sides of the central rib 3, and both sides of the central rib 3. Locking ribs 5 that are vertically installed at low intervals and have locking racks 5a inside
And a stopper rib 6 standingly provided so as to connect these ribs 3, 4, 5 at one end side thereof. One of the iron plate clips 7 includes a U-shaped holding portion 8 that is inserted into the central rib 3, a flange portion 9 that is bent outward at both ends of the U-shaped holding portion 8, and both sides of the U-shaped holding portion 8. The surface has notches on both sides, and has a blade portion 10 that is bent outward in a V shape.

In the iron plate clip 7, the U-shaped holding portion 8 is fitted into the central rib 3 of the mounting portion 2 from the direction of the arrow B, and the tips of both flange portions 9 thereof are attached to the lower surface of the locking shelf 5a of both locking ribs 5. In the contact state, the stopper rib 6 is pushed until it hits and is fixed to the mounting portion 2 of the molded product 1.

<< Problems to be Solved by the Invention >> As described above, in the conventional molded product fixing structure, the iron plate clip 7 is prevented from coming off, and the ends of both flanges 9 thereof are locked to the locking shelf 5a of the locking rib 5. It is done by letting it. The locking shelf 5a is undercut in the die-cutting direction A of the molded product 1. For this reason, a slide core is required to make the locking shelf 5a, and there is a problem that the die cost becomes high.

In addition, when attaching the iron plate clip 7 to the mounting portion 2, first, the iron plate clip 7 is brought close to a side end of the mounting portion 2 where the stopper rib 6 is not provided, and then the iron plate clip 7 is laterally moved and inserted. There is a problem that it becomes necessary and requires a lot of man-hours for installation.

Therefore, an object of the present invention is to provide a fixing structure for a molded product which can reduce the cost of the mold for the molded product mounting portion and can easily mount the iron plate clip.

<< Means for Solving Problems >> The fixing structure of a molded product according to the present invention is a structure for fixing a sheet metal clip to a mounting portion integrally formed with a resin molded product, and the mounting portion of the molded product is A central rib that is erected high in the direction of removing the mold of the molded product, locking ribs that are erected low at both sides of the central rib with a gap therebetween, and substantially perpendicular to both side surfaces of the central rib. The sheet metal clip includes a U-shaped holding portion that is press-fitted into the central rib, a notch portion that is inserted into the positioning rib, and both end portions of the U-shaped holding portion. A flange portion that is bent outward, a claw portion that is provided at the tip of the flange portion and that is locked by the locking rib, and a side surface is held by the positioning rib and is fixed to another mating member. It has a blade part.

<Operation> In the sheet metal clip, the U-shaped holding portion is inserted into the center rib of the molded product mounting portion, the notch portion is inserted into the positioning rib, and the sheet metal clip is press-fitted from above. It is stopped to prevent it from coming off.

<< Embodiment >> FIGS. 1 and 2 are perspective views of an iron plate clip and a molded product attaching portion in an embodiment of the present invention, and FIG. 3 is an assembled perspective view thereof. In each of the following perspective views, the diagonal left upper direction is defined as the front-rear direction, and the diagonal upper right direction is defined as the left-right direction.

The iron plate clip 11 shown in FIG. 1 is formed by bending a single iron plate, and is formed symmetrically in the front, back, left and right. This iron plate clip 11 has a U-shaped holding portion 12 at the center, a flange portion 13 formed by bending outward at both lower end portions of the U-shaped holding portion 12, and both flange portions 13 thereof.
Between the claw portion 14 provided at the tip of the U-shaped holding portion 12, two cutout portions 15 and 16 formed by cutting from both sides of the U-shaped holding portion 12 from the upper side to the lower side, and the two cutout portions 15 and 16. Blade portion 17 that is bent in a substantially "U" shape with its portion facing outward and auxiliary claw portion 18 that is bent inward at the left and right lower end portions of both side surfaces of U-shaped holding portion 12. , 19
And both of the flange portions 13 are provided with a hole portion 20 that is continuous with the cutout portions 15 and 16 and that is cut away with the periphery left.

The molded product mounting portion 21 shown in FIG. 2 is also integrally molded with the molded product main body 22 in a symmetrical shape in the front-rear direction and the left-right direction. This mounting part 21
Is a central rib 23 that is erected high in the die cutting direction A of the molded product body 22, locking ribs 24 that are erected low at both sides of the central rib 23 with a space, and a central rib 23.
Two positioning ribs 25 and 26 are provided on both side surfaces of the central rib 23 so as to connect the locking ribs 24 with the locking ribs 24. The positioning ribs 25 and 26 are formed such that the protruding dimension 1 on the upper side is smaller than the interval L between the lower central rib 23 and the locking rib 24, and the dimension 1 part is slightly lower than the top of the locking rib 24. To the open position, and steps 25a and 26a are formed there.

In order to fix such an iron plate clip 11 to the molded product mounting portion 21 as shown in FIG.
2 is aligned with the central rib 23 of the molded product mounting portion 21, both notches 15 and 16 thereof are aligned with both positioning ribs 25 and 26, and the flange portion 13 thereof contacts the step portions 25a and 26a of the positioning ribs 25 and 26. Press in from above. By this press-fitting, as shown in FIG. 4, the claw portion 14 at the tip of the flange portion 13 elastically bites into the inner side surface of the locking rib 24, and the auxiliary claw portions 18 and 19 elastically bite into the side surface of the central rib 23, respectively. It is locked to prevent it from slipping upward. In order to prevent rattling on the left and right, the notches 15 and 16 are positioned on the positioning rib 2.
It is carried out by getting into 5, 26.

FIG. 5 shows a first modified embodiment of the present invention. The iron plate clip 31 in this embodiment is exactly the same as the iron plate clip 11 shown in FIG. 1, but the molded product mounting portion 41 is different from the molded product mounting portion 21 shown in FIG. Positioning ribs 25 and 26 on both sides
Among them, one side surface has only the positioning rib 25, and the other side surface has only the positioning rib 26. That is, this is an example in which the positioning ribs are staggered one by one in the front and rear, and the shape of the mounting portion 41 is simplified.

In the second modified embodiment of the present invention shown in FIG. 6,
The auxiliary claws 58 and 59 formed on the iron plate clip 51 are
The flange 60 is bent and formed so as to rise from the left and right inner ends of the hole 60. The molded product mounting portion 61 is substantially the same as the mounting portion 21 shown in FIG. 2, and the auxiliary claw portions 58 and 59 of the iron plate clip 51 are bitely locked to the outer side surfaces of the positioning ribs 65 and 66, respectively. In this embodiment, the rattling on the left and right of the iron plate clip 51 can be more surely prevented by the auxiliary claws 58 and 59.

Details of the iron plate clip 71 and the molded product mounting portion 81 in the third modified embodiment of the present invention shown in FIG. 7 are shown in FIGS. 8 and 9, respectively. Iron plate clip 7
1 is formed in a symmetrical shape in which the front and back are inverted by 180 degrees, and both sides are staggered, and a U-shaped holding portion 72 is bent outward at both lower end portions of the U-shaped holding portion 72. The flange portion 73, the claw portions 74 provided at the tips of the flange portions 73, and the U-shaped holding portion 72 are adjacent to each other via the central cutout portion 75, and are bent outward in a substantially "V" shape. The blade portion 76 is formed, and the U-shaped holding portion 72 is provided with a triangular auxiliary claw portion 77 that is cut and raised toward the inside.

The molded product mounting portion 81 is also formed in a symmetrical shape with the front and back reversed by 180 degrees, and has a central rib 83 that is erected upright in the mold removing direction A of the molded product main body 82 and a space on both sides of this central rib 83. The locking ribs 84 that are placed upright and low, the positioning ribs 85 that project substantially perpendicularly to the central portions of both side surfaces of the central rib 83, and the locking ribs 84 that are continuous at right angles to the central ribs 83 And a reinforcing rib 86 continuously provided upright on the end face of the.

In the iron plate clip 71, the cutout portion 75 is aligned with the positioning rib 85 of the molded product mounting portion 81, and the U-shaped holding portion 72 is press-fitted into the central rib 83 from above. By this press-fitting, the claw 74 at the tip of the flange 73 is locked by the locking rib 8.
4 and the auxiliary claw 77 is elastically bite-engaged with the side surface of the central rib 83 to prevent upward disengagement. The rattling of the left and right is performed by inserting the notch 75 into the positioning rib 85.

In this embodiment, there is an advantage that the widths of the iron plate clip 71 and the mounting portion 81 in the left-right direction can be reduced.

<Effect of device> As described above, according to this invention, the molded product fixing structure eliminates the need for the slide core because each rib of the product mounting portion is erected in the direction of the mold removal of the product body. Mold cost can be reduced. Also, because the claw portion provided at the tip of the flange portion of the sheet metal clip bites into and engages with the locking rib of the molded product mounting portion, the cutout portion of the sheet metal clip is inserted into the positioning rib of the molded product mounting portion for positioning, It is possible to reliably prevent the sheet metal clip from coming off and rattling. Further, since the sheet metal clip can be attached simply by press-fitting it into the molded article attaching portion from above, the sheet metal clip can be fixed very easily.

Further, the blade portion of the sheet metal clip fixed to the resin molded product main body has a direct function of fixing the mating member to the molded product. For this reason, the blade portion usually has a slender tongue-shaped body with one end free. Therefore, after the sheet metal clip is attached to the resin molded product body, the blade portion is liable to wobble from side to side. Therefore, if an external force is applied from an oblique direction, the fixing force to the mating member will be weak. Therefore, in the present invention, the blade portion, which plays the main role of fixing the resin molded product body and the counterpart component, is firmly held on both sides by the positioning member.
For this reason, even if a force is applied from an oblique direction, the resin molded product is not deformed, and the fixing function between the resin molded product main body and the counterpart component can be surely exhibited, and the fixing force can be increased. Further, even if the shape of the vane varies, when the U-shaped holding portion of the sheet metal clip is press-fitted into the central rib of the resin molded product, the vane portion is corrected by the positioning ribs on the side surface and its position is corrected. And the attitude will be standardized.

[Brief description of drawings]

FIG. 1 is a perspective view of an iron plate clip according to an embodiment of the present invention, FIG. 2 is a perspective view of a molded product attaching portion in the same embodiment, and FIG. 3 is an assembled perspective view of the same embodiment. FIG. 5 is a partial sectional view of the same embodiment, FIG. 5 is an assembled perspective view showing a first modified embodiment of the present invention, and FIG. 6 is an assembled perspective view showing a second modified embodiment of the present invention. 7 is an assembled perspective view showing a third modified embodiment of the present invention, FIG. 8 is a perspective view of an iron plate clip in the third modified embodiment, and FIG. 9 is a molded product in the third modified embodiment. Fig. 10 is a perspective view of the mounting part.
It is an assembly perspective view which fixed the conventional iron plate clip to the molded product attachment part. 11 ... Iron plate clip, 12 ... U-shaped holding part, 13 ...
… Flange part, 14… Claw part, 15, 16… Notch part,
17 ... Blade part, 18,19 ... Auxiliary claw part, 20 ... Hole part, 21 ... Molded product mounting part, 22 ... Molded product body, 23
...... Center rib, 24 …… Locking rib, 25,26 …… Positioning rib.

Claims (1)

[Scope of utility model registration request] 1. A structure for fixing a sheet metal clip to a mounting part integrally molded with a resin molded product, wherein the mounting part is provided upright in the mold removing direction of the molded product. The sheet metal clip includes a rib, a locking rib that is vertically erected with a gap on both sides of the central rib, and a positioning rib that projects substantially vertically on both side surfaces of the central rib. A U-shaped holding portion press-fitted into the rib, a notch portion inserted into the positioning rib, a flange portion bent outward at both ends of the U-shaped holding portion, and a tip of the flange portion. A fixing structure for a molded product, comprising: a claw portion provided on the base plate and locked to the locking rib; and a blade portion whose side surface is held by the positioning rib and fixed to another mating member.