JPS6024978Y2 - dowel - Google Patents

Description

[Detailed description of the invention] The present invention allows the needle tip to be driven into one member without damaging it by fitting and fixing the respective bases of the first lamp body and the second lamp body. Regarding the dowels.

Conventionally, dowels used to connect decorative materials such as baseboards and surrounding edges to walls, etc. have been provided with sharp needle points at the front and back, so when driving the dowels, it is difficult to hit the outer needle tips. This results in unstable insertion and damage such as crushing of the needle tip.

Furthermore, since the needle is long, it is prone to bending, and the retention force and pull-out resistance of the outer needle tip are reduced.

The present invention aims to provide a dowel that can solve these problems, and one embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, the dowel 1 of the present invention comprises a first lamp body 2 and a second lamp body 3, the bases of which can be fitted and fixed, and the first lamp body' 2 has a sharp tip 2a, and its base 2b is provided with a cone-shaped head 4 whose diameter increases outward, and the head 4 has a female screw 6 at its center extending in the axial direction. A fitting hole 5 is carved.

On the other hand, the second lamp body 3 is provided with a sharp tip 3a, and a threaded portion 7 that is screwed into the female screw 6 is carved in the base portion 3b.

The length of the dowel 1 shown in FIG. 1 is set to be relatively short so as not to penetrate the baseboard 9, as shown in FIGS. 2a and 2b. are doing.

However, when fitting the skirting board 9 to the wall W using such dowels 1, first place the first lamp 2 on the wall W until the outer surface of the head 4 is flush with the wall W. Driving, second light body 3
is screwed onto the male screw 5 at its base 3b so as to protrude from the wall W, and the baseboard 9 is struck with a hammer through the baseboard 9 toward the second light body 3, thereby creating a second light body. Skirting board 9 by light body 3
can be attached and combined.

At this time, the first light body 2 is driven in by hitting the edge part S of the head 4 with a hammer, so the first light body 2 can be stably driven at right angles to the surface of the wall W. .

In addition, the dowel 1 of this invention has the first dowel 1 as shown in FIG.
By omitting the head 7 provided on the lamp body 2 and making it straight columnar, the structure can be simplified and productivity can be increased.

Also, it is shorter than an integrated dowel, which prevents it from bending.

In addition, the second light body 3 can be projected perpendicularly to the surface of the wall W without damaging its tip, and the second light body 3 can be correctly inserted into the baseboard 9 without causing a decrease in holding force or pulling resistance. .

Note that the second lamp body 3 is hidden behind the baseboard 9 and is not exposed.

3 and 4, a fitting hole 5 is provided in the head 4, and a snap ring 11 is loosely fitted into a groove 10 provided on the inner periphery of the fitting hole 5, and the snap ring 11 is snapped onto a second lead body 3 with a chamfered end of the base 3b. Another embodiment of the present invention is shown in which a groove 12 into which a ring 11 can be fitted is provided so that the ring 11 can be fitted and fixed to each other.

As described above, the dowel of the present invention has a structure in which the bases of the first lead body and the second lead body are fitted and fixed, so that the first lead body can be easily, safely and reliably attached to the wall. etc., and the second lead body can be joined to the first lead body, increasing the holding power and pulling resistance of the dowel without damaging the needle tip of the second lead body, making it stronger. This makes it possible to make a nail-like connection.

If the first lead body is provided with a head, it will be easier to drive and the first lead body can be used alone or as an ordinary nail.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 at
b is a partial sectional view showing an example of its use, FIG. 3 is a perspective view showing another embodiment of the present invention, FIG. 4 is a sectional view thereof, and FIG. 5 is a perspective view showing another embodiment of the present invention. It is a diagram. 1... Dowel, 2... First lead body, 3.
...Second lead body, 2a, 3a... Needle tip,
2bt3b...Base.

Claims (1)

[Scope of utility model registration request] A first lamp body having a sharp tip and a fitting hole extending in the axial direction at the base; and a rod having a sharp tip and the base of which can be fitted and fixed into the fitting hole. A dowel characterized by comprising two lamp bodies.