JPH078618U - Clip made of different materials - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] To prevent the soft resin part from being easily displaced. [Structure] A leg portion K which is press-fitted into a mounting hole of a body panel is provided, a core portion of the leg portion K is molded with a hard resin 1, and a surface is covered with a soft resin 2. Concavity and convexity 1 on the part to be molded in advance
4 is molded in advance so that both resins physically engage with each other when the soft resin is insert-molded. By doing so, a certain occasional engagement force is applied to the soft resin molded portion, and even if the soft resin molded portion receives an external force in the shift direction at the time of press-fitting into the mounting hole, positional displacement can be avoided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a clip made of different materials.

[0002]

[Prior art]

 For example, when fixing decorative parts such as automobile protector moldings and locker moldings to a body panel, resin clips have been conventionally used. In general, such a clip has a molding mounting portion for mounting a molding on the upper portion and a leg portion for inserting the molding member on the lower portion. In addition, since the body panel is stopped by inserting and removing the legs, there is concern that rust may occur due to peeling of the paint coating on the body panel, so the surface of the clips (the surface of the legs) should be used as a countermeasure. There has been no such thing as coating with a soft resin.

That is, the portion forming the core of the clip is molded with a hard resin, and the surface thereof is molded with a soft resin such as an elastomer. Therefore, in molding, the hard resin portion (first resin portion) is first molded, and then the soft resin portion (second resin portion) is molded by insert molding or the like.

[0004]

[Problems to be solved by the device]

 However, in the clip made of different kinds of materials as described above, the positional deviation of the second resin portion as described below poses a problem (see FIGS. 7 and 8). That is, the leg portion 30 passes through the attachment hole 31 of the body panel while slightly deforming, and after the passage, the entire leg elastically recovers and the locking step portion 32 engages with the hole edge, whereby Will be stopped. In this case, since it is necessary to obtain a certain degree of moderation when performing the insertion work into the mounting hole 31, the locking step portion 32 is not covered with the soft resin (second resin portion 33), The hard resin portion (first resin portion 34) is exposed. Therefore, the second resin portion 33 is not continuous in this portion. Originally, because both resin parts are difficult to adhere to each other and there are such circumstances, the second resin part is more likely to be displaced. Specifically, when the leg portion is inserted into the mounting hole, the leg portion slides on the edge of the mounting hole, and as shown in FIG. When the clip is pulled out, for example, when the clip is wrinkled at the position, or conversely when repairing, peeling occurs (state in Fig. 8). The present invention has been developed and devised in view of the above-mentioned problems, and an object thereof is to provide a clip made of a different material that can effectively avoid the displacement of the second resin portion. .

[0005]

[Means for Solving the Problems]

 To achieve the above object, the structure of the present invention is such that a mounting portion for mounting an object to be mounted and a mounting hole depending from the mounting portion and penetrating the body are inserted and elastically engaged. And a second leg formed of a soft resin material so as to cover the first resin portion, and a second leg formed of a soft resin material. A clip including a resin portion, wherein the first resin portion is provided with an uneven portion that can be engaged with the second resin portion side in order to regulate the displacement of the second resin portion. To do.

[0006]

[Action]

 Therefore, according to the above configuration, the second resin portion is molded in a state of biting into the unevenness of the first resin portion, and the second resin portion is restricted in displacement by the physical engaging force obtained at this time. It

[0007]

[Effect of device]

 The effects of the present invention are as follows. Since the above-mentioned physical fastening force is applied to stop the second resin portion, it is possible to prevent the second resin portion from peeling off and causing a positional shift such as a wrinkle when it is inserted into or removed from the mounting hole. . Therefore, the second resin portion is maintained in the regular covering state, and the clip can be reused.

[0008]

【Example】

 Embodiments embodying the present invention will be described below in detail with reference to the drawings. FIG. 1 shows the entire clip C of this example, and in this example, a clip C for mounting a rocker molding M 1 of an automobile is shown. A molding mounting portion MS for mounting the molding M is arranged on the upper side of the clip C, and a leg portion K for mounting the body panel P is arranged on the lower side. The clip C of this example is formed by molding a core portion of a hard resin (for example, polyacetal) (hereinafter referred to as the first resin portion 1) and then by insert molding of a soft resin (for example, polyethylene elastomer). Thus, the first resin portion is covered over a certain range (a portion formed by the soft resin is hereinafter referred to as the second resin portion 2).

The molding mounting portion MS described above is molded only from hard resin. The mold mounting portion MS has a substrate 3, both edges of the long side thereof stand upright and face each other, and both upper edges thereof are curved to match the inner surface shape of the rocker molding M. There is. A step edge 4 is formed on one side of the two short pieces of the substrate 3 so as to be inserted into and engaged with the first flange edge f1 of the molding M. On the other side, an elastic locking piece 6 is arranged like a bridge via a slit 5. The elastic locking piece 6 is allowed to flex and deform inward and can elastically engage with the second flange edge f2 of the molding M.

The leg portion K is provided at a substantially central position on the lower surface of the substrate 3, and the portion below the connection base 7 is covered with the above-mentioned soft resin. The configuration of the portion (part of the first resin portion 1) molded of the hard resin that serves as the core is as follows.

At the center of the base 7, a taper-shaped shaft 8 is hung along the axis, and a pair of locking leg pieces 9 are directed obliquely upward from a height position at the center thereof. It is protruding like an anchor. Both of them are allowed to bend in the recess direction so that they can be inserted into the mounting holes 10. Further, on the inner edge side of the upper end edges of both the locking leg pieces 9, a restriction piece 11 that abuts the hole edge of the mounting hole 10 is formed upright.

On the other hand, the second resin portion 2 first coats the lower surface side of the base 7 in a laminated form with substantially the same thickness, and the portion continuing from this is a sealing edge 12 that covers the mounting hole 10 and is larger than the mounting hole 10. It is formed in a diameter and extends like an umbrella. The second resin portion 2 is further provided so as to be continuous with the second resin portion 2 so as to cover the entire surface of the shaft 8 and both the locking leg pieces 9 except a part thereof. Further, the second resin portion 2 not only covers the surface of the first resin portion 1, but as shown in FIG. The connecting piece 13 is arranged in a point symmetrical position so as to close the side opening. As a result, the leg portion K has a substantially S-shape in a plane cross section, and is allowed to bend and deform in the direction of closing the S-shaped opening to pass through the mounting hole 10.

Next, the structure for restricting the positional displacement of the second resin portion 2 will be described. As shown in FIGS. The convex portion 14 is formed. Therefore, when the insert molding is performed, the soft resin penetrates into the unevenness formed by the retaining projection 14 so as to bite into it. Further, an upwardly sloping biting edge 15 is formed from the root portion of both the restriction pieces 11 to the outer edge side, and by providing such an undercut, the second resin portion 2 is moved to the outside of the restriction piece 11. It is designed to resist being pulled. The second resin portion 2 covers the base portion of the regulation piece 11 so as to surround it, but the first resin portion 1 is exposed on the tip side of the regulation piece 11.

The clip C of this example is configured as described above. When the rocker molding M is fixed to the body panel P, before the clip C is fixed to the body panel P, first, the molding M is mounted on the molding mounting portion MS. In this case, the elastic locking piece 6 elastically engages the second flange edge f2, and the step edge 4 engages the first flange edge f1.

Next, the leg portion K is fitted into the mounting hole 10 of the body panel P and press-fitted. Then, the leg K passes through the mounting hole 10 while deforming into a recess, and after the passage, it elastically returns and both restricting pieces 11 engage the hole edge to prevent the leg K from coming off and the sealing edge. 12 tightly covers the periphery of the mounting hole 10 to ensure the sealing property with respect to the body panel P.

By the way, while the leg portion K is being press-fitted into the mounting hole 10, the outer surface sides of both the locking leg pieces 9 are in sliding contact with the hole edges of the mounting hole 10. There was concern that Part 2 would wrinkle. However, in this example, the physical displacement of the second resin portion 2 due to the physical engagement between the retaining protrusion 14 on the first resin portion 1 side and the second resin portion 2 side is effectively avoided. There is. On the contrary, when the leg K is pulled out from the body panel P, in addition to the above-described slip-preventing effect of the retaining projection 14, the second resin portion 2 and the biting edge 15 are engaged with each other so that the second resin It is possible to prevent the portion 2 from being displaced downward. Therefore, even if the legs are repeatedly inserted and removed, the second resin portion 2 can be normally covered, and the clip C can be expected to be reused.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and various modifications can be considered. For example, as a method of physically engaging the first resin portion 1 and the second resin portion 2, a through hole is formed in both the locking leg pieces 9 or the shaft 8, or a concave portion is formed. It is also possible to do so.

[Brief description of drawings]

FIG. 1 is a perspective view of a clip

FIG. 2 is a perspective view showing a main part of a first resin part.

FIG. 3 is a partially cutaway view showing a main part of a leg portion.

FIG. 4 is a cross-sectional view showing a mounted state of a rocker molding.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is an enlarged cross-sectional view showing the periphery of the retaining protrusion.

FIG. 7 is an explanatory diagram showing conventional problems.

FIG. 8 is an explanatory diagram showing conventional problems.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... 1st resin part 2 ... 2nd resin part 14 ... Fall-out convex part 15 ... Bite edge MS ... Mall mounting part K ... Leg part

Claims (1)

[Scope of utility model registration request] 1. A mounting portion for mounting an object to be mounted,
A first resin portion formed by using a hard resin material as a core material; and a leg portion that is hung from the mounting portion and inserted into a mounting hole penetrating the body and elastically engageable with the mounting hole. And a second resin part made of a soft resin material and formed so as to cover the first resin part, wherein the first resin part regulates the displacement of the second resin part. In order to achieve this, a clip made of a different material is characterized in that an uneven portion that can be engaged with the second resin portion side is formed.