JPS60191851A - Method of attaching protector molding - Google Patents

Abstract

PURPOSE:To facilitate the production of moldings, by forming, in the back surface of a protect molding, an attaching section having a groove in which a metal wire may be inserted and is made impossible to come off backward, and as well by attaching an attaching clip to the attaching section in which the metal wire is inserted, so that the clip is made impossible to come off. CONSTITUTION:Two L-like cross-sectioned shape projection ridges 13, 13 which are curved in opposite directions, are formed on the back surface of a synthetic resin molding 11, having grooves 12 each of which may be inserted with a metal wire 21 that is made impossible to come off backward, thereby an attaching section is formed. Further, a terminal end forming part 15 is formed at one end of the molding 11, and as well notches 16 having a width slightly wider that of a synthetic resin clip 19 are formed in the ridges 13, 13. The clip is integrally incorporated with a head section 17 having vertically downward directed hook section 17a and U-like section 17b which is set in the notches 16 with the presence of the metal wires 21, and a leg part 18 which may be fitted into an attaching hole in a receiving member such as, for example, a vehicle body.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for attaching a protector molding to the side surface, bumper, etc. of an automobile body.

Conventionally, protector moldings, such as side moldings of automobiles, have adopted an attachment method as shown in FIG.

<Prior art> In other words, the extruded synthetic resin side molding (hereinafter referred to as the molding) is cut to a specified length, and then subjected to terminal molding if necessary, to form a channel-shaped attachment part formed on the back side of the molding. 2, insert the rectangular plate-shaped head 4 of the clip 3 from the open end of the molding, attach the required number of clips 3 to the molding L, and place them on the vehicle body sheet metal (member to be attached) 5 at a predetermined interval. The legs 7 of the clip 3 were elastically engaged and attached to the opened attachment holes 6.

<Problems to be solved by the invention> In the case of this mounting method, in order to provide rigidity to the mounting part 2,
It is necessary to embed the metal insert 8 and extrude the molding l. In this case, roll equipment and processing man-hours are required to bend the insert 8 into a channel shape.
In addition, the insert can be buried in a predetermined position at the beginning of extrusion (
It took a long time to carry out steady extrusion (steady extrusion), resulting in molding loss, and furthermore, when a defective product was produced, the insert had to be removed in order to be reused, which was troublesome. In addition, because the insert was buried, it was difficult to cut the molding to a specified length, resulting in poor workability. Furthermore, with the recent increase in the size of moldings, the inserts also need to be thicker and wider, which has contributed to a significant increase in the weight of the moldings.

The present invention aims to provide a method for attaching a protector mold that can solve the two-legged problem.Means for solving the problem A plurality of clips are attached to the back side of a resin protector molding through the heads thereof, and the legs of the clips are elastically engaged with mounting holes made at predetermined intervals in the member to be attached. In this method, a mounting portion having a hole or groove into which a metal wire can be inserted and which cannot be removed from the back side is formed on the back side of the protector molding during extrusion, and the mounting portion is installed after extrusion. In this method of attaching a protector mold, cutouts are formed at predetermined intervals in the cutout, and the head of the clip is irremovably engaged with a metal wire inserted into the hole or groove in the cutout.

<Example> Hereinafter, embodiments of the present invention will be described based on illustrated examples.

Figures 2 and 3 show an example of this invention. On the back side of a molding 11 made of synthetic resin such as vinyl chloride, there are two wires with a cross-sectional shape bent to opposite sides so as to have grooves 12 into which the metal wire 21 can be inserted during extrusion and which cannot be removed in the back direction. The ridges 13.13 are formed to constitute a mounting portion. A terminal molding portion 15 is formed at one end of the molding 11 by injection molding or the like, and
A plurality of notches 16 are formed at predetermined intervals on the protrusion 13.13, which is the mounting portion. This spacing is the same as the spacing between the mounting holes 6 drilled in the vehicle body sheet metal 5. 17 into the notch 1G of the molding 11, and open the metal wire 21 into the groove 12 of the protrusion 13 from the 1'' end.
are inserted to attach a plurality of clips 19 to the molding 11. Note that the metal wire 21 may have a hollow shape for purposes such as weight reduction. At this time, the head 17 has a hook portion 17a bent toward the molding side and a U-shaped portion 17b with a downward opening on the upper and lower sides thereof, and when the metal wire 21 is inserted into the hook portion 17a or the U-shaped portion 1'7b, , open the metal wire 21 [l
The clip 19 cannot be removed from the molding 11 unless it is pulled out toward the end. In this embodiment, it is also possible to use a clip 23 having a head 22 with U-shaped grooves 22a that open upward and downward on the side of the leg 18 as shown in FIG. After inserting the metal wire 21 into the groove 12 of the protrusion 13 and attaching a plurality of clips 19 to the molding 11, a terminal molded portion is formed by injection molding or the like.

Next, when the leg portion 18 of the clip 19 is forcibly inserted into the attachment hole 6, the leg portion 18, which has an umbrella-shaped cross section, bends inward, and the engaging convex portions 18a provided at both free ends of the leg portion 18 are released. The clip 19 is engaged with the edge of the attachment hole 6, and cannot be removed unless the legs 18 are forcibly bent inward. In this way, the molding 11 is reliably attached to the vehicle body sheet metal 5, and the difference in thermal shrinkage between the molding 11 and the vehicle body sheet metal 5 can be reliably absorbed since it is through the metal wire 21.

Figures 5 and 6 show other embodiments of the present invention, and in the embodiment described in Figures 5 and 6, holes 24 are provided in the two wooden protrusions 13 that are the attachment parts, and holes 24 are provided in the head 26 of the clip 25. hole 2 corresponding to
7. Of course, in this example as well,
It is also possible to use the clip 19.23 shown in FIG. 204. In the above embodiment, the case where there are two protrusions and two metal wires is shown, but the number is not limited to this and can be arbitrarily selected depending on the shape of the molding and the like.

<Effects of the Invention> The protector molding mounting method of the present invention has the following effects due to the above configuration.

(a) In the case of molding, rigidity is maintained by inserting a metal wire after extrusion, so inserts are not required, and roll equipment and processing man-hours for insert bending are not required.

(b)'' - For the same reason as described in (a), the time required for steady extrusion of protectamol is shortened, and molding loss is reduced.

(c) For the same reason as (a) above, even if a defective product is produced, there is no need to remove the insert and it is easy to recycle. (d) For the same reason as (a) above, it is easy to recycle after molding. Work becomes easier.

(e) For the same reason as in (a) above, the increase in weight of the molding can be reduced, especially when the molding is large.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a conventional molding mounting method, FIG. 2 is an exploded partial perspective view showing an example of the molding mounting method of the present invention, FIG. 3 is a sectional view, and FIG. 4 is a molding mounting method of the present invention. A perspective view showing another example of the clip used for the attachment method of
FIG. 5 is an exploded partial perspective view showing another example of the molding attachment method of the present invention, and FIG. 6 is a sectional view of the same. l...side molding (protector molding), 2...
Mounting part, 3... Clip, 4... Head, 5... Vehicle body sheet metal (mounted member), 6... Mounting hole, 7... Leg part, 11... Molding, 12... ...Groove, 13...Protrusion,
16... Notch part, 17... Head part, 18... Leg part,
19... Clip, 21... Metal wire, 22... Head, 23... Clip, 24... Hole, 25... Clip, 26... Head. Applicant Figure 1 Figure 2 Figure 5 Figure 6

Claims (1)

[Scope of Claims] A plurality of clips are attached to the back side of a synthetic resin protector molding cut into lengths after extrusion through its head, and attachment is made by opening holes at predetermined intervals on the member to be attached. In the method of attaching the protector molding to the non-removable member by elastically engaging the legs of the clip in the holes, the metal wire can be inserted into the back side of the protector molding during extrusion, and cannot be removed in the backward direction. forming a mounting portion with a hole or groove;
After extrusion, forming notches at predetermined intervals in the mounting portion,
A method for attaching a protector molding, characterized in that the head of the clip is irremovably engaged with a metal wire inserted into the hole or groove in the notch.