JPH062303Y2 - Fixture - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a mounting tool for mounting a mounting target component in a mounting hole provided in a mounting material.

[Conventional technology]

Conventionally, in order to attach the attachment target component to the attachment hole provided in the attachment material, it is generally necessary to perform work from both the front side and the back side of the attachment material.

[Problems to be solved by the invention]

Therefore, there is a problem that the work cost of the mounting work becomes very high.

[Purpose of device]

The present invention was made in order to solve the above-mentioned conventional problems, and it is possible to perform the mounting work by a simple work from only one of the front side and the back side of the mounted material, and the working efficiency is remarkably improved. It is an object of the present invention to provide a fixture that can significantly reduce the work cost as compared with the conventional one.

[Means for solving problems]

The mounting tool according to the present invention is a mounting tool for mounting a mounting target component in a mounting hole provided in a mounting material, and is generally in the shape of a cylinder provided with slits parallel to the axial direction. , A penetrating part that is inserted into the mounting hole with the tip as the leading end and into which the attachment target component is inserted from the rear end side, and a penetrating part that is provided on the rear end side of the penetrating part. In the penetration portion, there is provided a stop portion having a size that prevents the attachment target component from being inserted into the attachment hole even when the attachment target component is not inserted, and a attachment target component dropout prevention portion including a projection claw. In a state in which the attachment target component is not inserted in, the inner surface of the penetrating portion is formed with an inclined surface such that the inner diameter on the front end side of the penetrating portion is smaller than the inner diameter on the rear end side, and Can enter the mounting hole with the tip at the top Although it has an outer diameter, when the attachment target component is inserted into the penetration portion from the rear end side of the penetration portion, the attachment target component pushes the inclined surface outward and pushes the penetration portion outward. By expanding, the outer diameter of the penetration portion is enlarged, and the protrusion claw of the attachment target component dropout prevention portion is such that the attachment target component is located inside the penetration portion from the rear end side of the penetration portion. When it is inserted, it is slidably contacted with the attachment target component and has an inclined surface that allows the attachment target component to go over the protruding claw, and the attachment target component is from the rear end side of the penetrating portion. After being inserted into the penetrating portion to a predetermined depth, when the protruding claw is finished to be overcome, the fitting target component is engaged to prevent the fitting target component from coming out of the penetrating portion in the return direction.

[Action]

When performing the mounting work with the mounting tool of the present invention, first, the penetrating part of the mounting tool is inserted into the mounting hole from one side (back side or front side) of the mounting material to a predetermined depth. As a result, the penetrating portion penetrates the mounting hole.

Next, the attachment target component is inserted into the penetrating part of the fixture to a predetermined depth from the rear end side of the penetrating part. Then, the mounting target component pushes the inclined surface formed by the inner surface of the penetrating portion to the outside and expands the penetrating portion to the outside, so that the outer diameter of the penetrating portion is expanded and the penetrating portion comes out of the mounting hole in the return direction. It will be impossible.

Further, when the attachment target component is inserted into the penetration portion to a predetermined depth as described above, the projection claws of the attachment target component dropout prevention portion engage the attachment target component, and the attachment target component returns from the penetration portion in the return direction. You will not be able to get out. Further, since the stop portion is present, the attachment tool does not come out of the attachment hole in the insertion direction.

As a result, the attachment target component is firmly attached to the attachment hole through the attachment.

As described above, when the fixture according to the present invention is used, (a) the fixture is inserted into the mount hole from one side of the mount material.

(B) Insert the mounting target component into the mounting tool from one side of the mounted material.

The component to be attached can be firmly attached to the attachment hole only by the work from one side of the attachment material, and each of the operations (a) and (b) itself is extremely simple.

〔Example〕

 Hereinafter, the present invention will be described based on an embodiment shown in the drawings.

1 to 5 show an embodiment of a fixture in which the component to be attached is a socket of a small light bulb. In this embodiment, a plate-shaped mounted material 1 is provided with a round hole-shaped mounted hole 2.

The fixture 3 is made of a synthetic resin and integrally includes the through portion 5, the stopper portion 4 located at the rear end of the through portion 5, and the socket drop-out prevention portion 6 (the attachment target component drop-out prevention portion in this embodiment). Have The stopper portion 4 is always formed in an annular shape having a size such that the stopper portion 4 cannot enter the mounting hole 2. The penetrating portion 5 has a shape that is roughly divided into four pieces having an arc-shaped cross section by cutting the cylinder in a direction parallel to the axial direction. It stands up in a direction parallel to the axial direction of the stopper 4. And, in the state where the socket 7 is not inserted into the inner peripheral side of the penetrating portion 5 (the state of FIGS. 2 to 5), the attached material 1 is
Has an outer diameter capable of penetrating into the mounting hole 2 from the rear surface (lower surface in the figure) side, and its inner peripheral surface 5a is tapered as well shown in the cross section of FIG. 2 or FIG. It has a tapered shape. In addition, the outer peripheral surface 5b of the penetrating portion 5
Is preferably in a straight state or a tapered shape that is smaller than the taper of the inner peripheral surface 5a.

A pair of the socket disengagement prevention portions 6 are provided at positions that make an angle of 180 degrees with each other, and these socket disengagement prevention portions 6 extend from the outer peripheral side of the stopper portion 4 in the direction opposite to the penetrating portion 3. A protrusion claw 8 is provided on the inner peripheral side of the tip of each of the socket drop-out prevention portions 6, and the protrusion claw 8 is provided with a slope 8a that is directed inward as it gets closer to the fitting portion 5. .

The socket 7 generally has a bottomed cylindrical shape, and its bottom portion 7a has a flange shape and projects outward. A cap-shaped socket cover 9 having a flange portion 9a is attached to the bottom portion 7a. The small lamp 10 is detachably attached to the socket 7.

Next, the work of mounting the socket 7 on the mounted material 1 according to this embodiment will be described.

First, as shown in FIGS. 2 and 5, the penetrating portion 5 of the fixture 3 is inserted into the mounting hole 2 from the back side of the mounting member 1 until the stopper 4 comes into contact with the back surface of the mounting member 1 and does not move. (State of FIG. 5). As a result, the penetrating portion 5 is in a state of penetrating the mounting hole 2.

Next, as shown in FIG. 1, the socket 7 is inserted into the penetrating portion 5 of the fixture 3 until the bottom 7a comes into contact with the stopper 4 of the fixture 3 and becomes immobile. Then, since the inner peripheral surface 5a of the penetrating portion 5 has a taper shape which is tapered in a state where the socket 7 is not inserted, the socket 7 pushes the inner peripheral surface 5a to the outside to spread the penetrating portion 5 outward, Since the outer diameter of the penetrating portion 5 is enlarged, the penetrating portion 5 cannot come out of the mounted hole 2 in the returning direction.

In addition, in the process of inserting the socket 7 into the penetrating portion 5 as described above, first, the bottom portion 7a of the socket 7 is brought into sliding contact with the inclined surface 8a of the protruding claw 8 and enters between the protruding claws 8, and the socket drop-preventing portion 6 is placed outside When the bottom portion 7a of the socket 7 and the flange portion 9a of the socket cover 9 go over the protruding claws 8 and the bottom portion 7a of the socket 7 comes into contact with the stopper portion 4 of the fixture 3, as shown in FIG. Bottom 7a of socket 7
Also, the flange portion 9a of the socket cover 9 has finished riding over the protruding claw 8, and the protruding claw 8 is engaged with the flange portion 9a of the socket cover 9, so that the socket 7 has the penetrating portion 5.
You will not be able to escape from the direction of return.

As a result, the socket 7 is firmly fixed to the mounted hole 2 via the mounting tool 3.

When the mounting tool 3 is used as described above, (a) The mounting tool 3 is inserted into the mounting hole 2 from the back side of the mounting material 1.

(B) Insert the socket 7 into the fixture 3 from the back side of the material 1 to be attached.

The socket 7 can be firmly attached to the attachment hole 2 only by the work from the back side of the attachment material 1, and the operations (a) and (b) themselves are extremely simple. Therefore, the work efficiency of the mounting work can be remarkably improved, and the cost of the mounting work can be significantly reduced as compared with the conventional case.

It should be noted that the above-described embodiment is an example in which the present invention is applied to a mounting tool for mounting a socket of a small light bulb, but the present invention is also applicable to a mounting tool for mounting a mounting target component other than the socket.

Further, in the above embodiment, the mounting work can be performed only from the back side of the mounted material 1, but it is also possible to perform the mounting work only from the front side of the mounted material 1 in the same manner. Needless to say.

Further, in the above-mentioned embodiment, the mounted hole 2 is a round hole, but in the present invention, the mounted hole can be a hole having another shape.

[Effect of device]

As described above, the mounting tool according to the present invention can be mounted by a simple work from only one of the front side and the back side of the material to be mounted, the work efficiency is remarkably improved, and the mounting work cost is lower than the conventional one. However, it is possible to obtain an excellent effect that it can be significantly reduced.

[Brief description of drawings]

FIG. 1 is a sectional view showing a state in which a socket (component to be mounted) is mounted in a mounting hole in an embodiment of a mounting member according to the present invention, and FIG. 2 is a half sectional view showing the mounting member together with the mounting member. FIG. 3 is a bottom view showing the embodiment, FIG. 4 is a plan view showing the embodiment, and FIG. 5 shows a state in which the socket is further inserted into the fixture inserted in the mounting hole in the embodiment. It is sectional drawing shown. DESCRIPTION OF SYMBOLS 1 ... Attached material, 2 ... Attached hole, 3 ... Fixing tool, 4 ... Stop part, 5 ... Penetration part, 6 ... Socket fall-out prevention part (attachment target component fall-out prevention part), 7 ... Socket (attachment target part) , 8 ...
Protruding claws.

Claims (1)

[Scope of utility model registration request] 1. A mounting tool for mounting a component to be mounted in a mounting hole provided in a mounting material, which is generally in the form of a cylinder having a slit and has the tip as a leading end. A penetrating portion that is inserted into the mounting hole and into which the attachment target component is inserted from the rear end side, and a rear end side of the penetrating portion are provided, and the attachment target component is inserted into the penetration portion. It has a stop portion having a size that cannot penetrate into the mounting hole even when it is not present, and an attachment target component dropout prevention portion having a projection claw, and the attachment target component is inserted into the penetration portion. In the state in which the through-hole is not formed, the inner surface of the through-hole has a beveled surface such that the inner diameter on the tip side of the through-hole is smaller than the inner diameter on the rear-end side, and the through-hole has the tip as the leading end. Although it has an outer diameter that allows it to enter the mounting hole, When the attachment target component is inserted from the rear end side of the through portion to the attachment target component, the attachment target component pushes the inclined surface outward and pushes the penetration portion outward to expand the outer diameter of the penetration portion. The protruding claws of the attachment target component drop-out prevention portion slide onto the attachment target component when the attachment target component is inserted into the penetration portion from the rear end side of the penetration portion. The attachment target component has an inclined surface that allows the attachment target component to go over the projection claw, and the attachment target component is inserted from the rear end side of the penetration part to the penetration part to a predetermined depth. A fixture for engaging with the attachment target component so as to prevent the attachment target component from slipping out of the penetrating portion in the returning direction after the nail is overrun.