JPH0428697Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a welding stud having a tip part to be welded to a base material and a shaft part having a clip holding part. This invention relates to a welding stud with a clip for fixing a board, in which a plastic clip for fixing the board to a base material such as a car body is integrally and firmly connected in advance.

BACKGROUND TECHNOLOGY Welding studs that include a tip part that is welded to a base metal and a clip holding part to which a clip is attached are well known, and a typical example is a rod-shaped stud that has threads or grooves formed on the outer periphery of the shaft part. . Rod-shaped studs are used to fix boards such as insulation boards to base materials such as car bodies. That is, the studs are fixed to a base material such as a car body by welding, and the board can be fixed to the base material by holding a board with stud holes to the base material and attaching clips to the studs protruding from the board. . Such studs can be fixed without drilling holes in the base material such as the car body, so
It can block water, gas, and sound, and is widely used.

Problems to be solved by the invention However, attaching a clip via a stud requires two parts, the stud and the clip, which is disadvantageous in terms of parts management.
It was necessary to devise ways to maintain a strong adhesion of the clip to the stud, which had the disadvantage of increasing the price. Furthermore, when attaching the clip to the stud, the anti-rust coating on the stud may be peeled off, or in the case of metal clips, contact between the stud and different metals may cause rust.

Accordingly, an object of the present invention is to provide a welded stud that facilitates parts management, maintains strong adhesion of the clip to the stud, and further minimizes the occurrence of rust.

Means for Solving the Problems In order to achieve this purpose, according to the present invention,
A welding stud with a clip for fixing a board, in which a plastic clip for fixing a board is integrally and firmly connected in advance to the welding stud, which has a tip part to be welded to a base material and a shaft part having a clip holding part. A flange for receiving a collector is formed at the lower end of the shaft, and the board holding piece of the clip takes an upright position parallel to the shaft and a board holding position perpendicular to the shaft. A welding stud with a clip for fixing a board is provided.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3. In FIG. 1, a stud 1 according to the present invention includes a tip portion 2 to be welded to a base material such as a vehicle body, and a shaft portion 4 having a clip holding portion 3.
and a collector receiving flange 5 which is located between the tip portion 2 and the shaft portion 4 and is formed to have a large diameter so as to come into contact with the tip of the collet of the welding gun.

In the present invention, a board fixing plastic clip 7, which is used to fix a board such as a heat insulating board or a sound insulating board, is integrally and firmly connected to the stud 1 in advance. That is, the clip holding part 3 extending from the shaft part 4 of the stud 1 is formed to have a smaller diameter than the shaft part 8 of the clip 7, and is integrally and firmly attached to the hole of the clip shaft part by fitting. This connection method may be any connection method such as fitting, adhesion, or screwing. Due to this connection, the stud 1 has its shaft portion extended and can be handled as a single component as a stud with a clip. Furthermore, if the shaft portion 4 of the stud, including the clip holding portion 3, is subjected to anti-corrosion treatment, the generation of rust can be prevented during subsequent use.

The clip 7 is used to fix a board such as a heat insulating board. For this purpose, the clip 7 has a pair of board holding pieces 9, which are arranged in an upright position parallel to the stud shaft 4 and in an upright position parallel to the stud shaft 4, as shown in FIG. and are configured to take orthogonal board holding positions. For this reason, each holding piece 9 is hinged to the clip shaft 8. In addition, a locking protrusion 10 is provided at the base of each holding piece 9 so that it can be fixed in two positions, the upright position and the board holding position.
is provided. With such clip 7,
When the retaining pieces 9,9 are in the upright position, the clip-on stud can be handled like a normal rod-shaped stud.

Fig. 2 shows the welding stud 1 connected to the clip 7 held in the collet 12 of the welding gun, with each holding piece 9 in an upright position and the flange 5 abutting the tip of the collet 12. will be inserted until Due to the presence of the flange 5, the collet 12 does not require a stopper to prevent over-insertion of the clipped stud. The welding gun is operated to melt the tip portion 2 and fix the stud 1 to the base material 13, such as a vehicle body, as shown in FIG. After this fixation, a board 14 such as a heat insulating board is pressed against the base material 13 so that its mounting hole 15 passes through the stud with clip. In this state of contact, the holding piece 9 is folded down to the board holding position, and is locked in the board holding position by the protrusion 10, thereby fixing the board 14 to the base material 13. In addition, although the holding pieces 9 are formed as a pair in the illustrated example, one
There may be one, or three or more may be provided.

Effects of the invention According to the invention, since the clip and the stud can be handled as one component, the complexity of managing the two parts is eliminated, and rust prevention treatment during assembly can eliminate the problem of rust. Maintains strong connection between clip and stud. Since the board holding piece of the board fixing clip can take an upright position extending the stud shaft, it is extremely easy to handle and is no different from a conventional stud without a clip. Since the board is held at a position perpendicular to the board, the board can be attached to the base material such as the vehicle body with an extremely simple operation of inserting the board's mounting hole into the stud and folding down the board holding piece. Moreover, the flange eliminates the need for a stopper on the welding gun collector to prevent over-insertion.

[Brief explanation of the drawing]

FIG. 1 is a front view of a stud with clip for fixing a board according to an embodiment of the present invention. Figure 2 shows
FIG. 2 is a partial sectional view showing how the stud of FIG. 1 is attached to a welding gun. FIG. 3 is a front view showing an example of the use of the stud shown in FIG. 1. Explanation of the symbols: 1... Stud with board fixing clip, 2... Chip part, 3... Clip holding part, 4... Shaft of stud, 5... Flange, 7
... Board fixing clip, 8 ... Clip shaft, 9 ... Holding piece, 10 ... Locking protrusion, 12 ...
...Welding gun collection, 13...Base metal, 14...
board.

Claims (1)

[Claims for Utility Model Registration] Board fixation in which a plastic clip for fixing the board is integrally and firmly connected in advance to a welding stud that has a tip part to be welded to the base material and a shaft part having a clip holding part. In the welding stud with a clip for use, a flange for receiving a collector is formed at the lower end of the shaft, and the board holding piece of the clip is arranged in an upright position parallel to the shaft and in an upright position parallel to the shaft. A welding stud with a clip for fixing a board, characterized in that it is formed to assume a holding position.