JPS6217622Y2 - - Google Patents

Description

[Detailed Description of the Invention] (1) Technical Field of the Invention The present invention relates to a set screw that removably fixes an adherend to a mounting body, and particularly relates to an improved set screw mechanism that prevents the set screw from falling out.

(2) Conventional technology and problems For example, as a means of attaching and fixing panels, covers, etc. as adherends to the housing of electronic equipment, etc., it has conventionally been possible to screw them using setscrews. A set screw with a neck is used to prevent it from falling out when loosened.

The conventional side cross section of such a set screw mechanism is
It is shown in Fig. 2. The one in Figure 1 is the mounting body 1.
A screw 32 formed at one end of the set screw 3 connects the through hole 21 of the adherend 2 to the mounting screw hole 11 formed at the
are threaded together. In this through hole 21, a narrow neck 31 provided in the middle of the set screw 3 is located, and a washer-like threaded plate 4 having a threaded hole 41 through which the screw 32 is threadedly engaged is loosely fitted. Ru. The end surface of the knob 33 of the set screw 3 comes into contact with the outer surface of the adherend 2, and is pressed and fixed when the screw 32 is screwed in.

In the above, although the set screw 3 does not come out because the screw 32 does not pass through the screw hole 41 due to the presence of the screw plate 4, there is a considerable space between the mounting body 1 and the adherend 2, and the hole 21 and neck 31 Since there is a gap between the inner and outer diameters of the screws to allow movement in the plane direction, it is difficult to align the screws 32 with the screw holes 11, and when the setscrews 3 are loosened, the weight of the knobs 33 As shown by the two-dot chain line, there is a problem in that the product sags, which not only exacerbates the above-mentioned problem but also has an unsatisfactory appearance. Therefore, a set screw mechanism as shown in FIG. 2 has been proposed.

In FIG. 2, a nut-shaped movable screw 5 is movably surrounded and fixed to the mounting body 1 by a fixing fitting, and the adherend 2 is provided with a screw hole 71 through which the screw 32 of the set screw 3 is screwed. A cylindrical body 7 having a screw 32 protruding from one end face thereof is caulked and fixed. The screw 32 is screwed into the movable screw 5, and can fit into the recessed hole 72 of the cylinder body 7 in a loosened state. Therefore, set screw 3
does not tilt greatly when loosened and is easy to match with the movable screw 5, but preventing the set screw 3 from coming off depends on the screw 32 and the screw hole 71, and the range of movement in the plane direction is limited by the screw hole. Since there is only a difference in the inner and outer diameters of the neck 31 and the inner and outer diameters of the neck 31, there is a problem in that it is limited to increasing this, and that a movable screw 5 mechanism is required.

Further, in both FIGS. 1 and 2, since the end surface of the knob presses against the outer surface of the adherend 2, there is a problem that the coating on this surface may be damaged.

(3) Purpose of the invention The purpose of the present invention was made in view of the above conventional problems, and is to provide a set screw mechanism that is easy to operate, does not damage the surface, and has a good appearance. .

(4) Structure of the invention This purpose is to
a mounting screw hole formed in the mounting body; a screw hole formed in the adherend having a larger diameter than the mounting screw hole; a mounting surface protruding from the adherend and approaching the mounting body; A thread is formed on the outer surface of the threaded part that is threaded into the mounting screw hole and the intermediate part is threaded through the threaded hole of the adherend to press the mounting surface and fix the adherend to the mounting body. This is achieved by a set screw mechanism comprising a set screw having a flange.

(5) Examples of the invention Hereinafter, the invention will be specifically described in examples based on the outline of the invention and with reference to the drawings.

3 and 4 are side cross-sectional views of an embodiment of the set screw mechanism of the present invention. In the figure, a mounting screw hole 11 formed in the mounting body 1, a screw hole 22 with a larger diameter than the mounting screw hole 11 formed in the adherend 2, and a screw hole 22 formed in the adherend 2.
A hat-shaped both edges 23 protrude between the mounting body in one direction.
The bottom of the metal fitting 24 is used as a mounting surface 25, and a screw insertion hole 26 is formed.

The set screw 8 has a screw 81 at one end that is inserted through the screw insertion hole 26 and screwed into the mounting screw hole 11, and a screw 82 formed on the outer surface at the middle portion so as to be screwed through the screw hole 22 of the adherend 2. a collar portion 84 having an end surface 83;
It consists of a knob 85 at the other end and a narrow neck 86 provided between the collar 84.

With the above configuration, when the screw 81 of the set screw 8 is inserted into the screw hole 22 from the outside of the adherend 2, and the screw 82 of the flange 84 is screwed together and passed through, the screw 81 will fit into the hole 26 of the metal fitting. A neck 86 is located in the screw hole 22. In the free state shown in the figure, the two surfaces of the adherend are vertical, and as shown in FIG. The upper portions of the screws 84 come into contact with the screw holes 22 on the inner surface of the adherend 2, resulting in a stable state, and the setscrew 8 will not slide out of the adherend 2.

Next, hold the knob 85 and insert it into the mounting screw hole 1 of the mounting body 1.
1, and tighten until the end surface 83 of the collar 84 comes into contact with the mounting surface 25 of the metal fitting 24 and presses with sufficient force. This state is shown in FIG. In this way, the adherend 2 is fixed to the mounting body 1.

At this time, even if there is a mutual misalignment between the mounting body 1 and the adherend 2 in the direction perpendicular to the plane of the paper, there is enough space between the screw 81 and the hole 26 and between the flange 84 and the metal fitting 24 to compensate for the misalignment. Since a gap is secured between both side walls and between the outer diameter of the neck 86 and the screw hole 22, there is no need to screw the screw 81 of the set screw 8 into the screw hole 11 of the mounting body 1. It can be done without any trouble.

Fixing the adherend 2 to the mounting body 1 is done using the setscrew 8.
Since the knob 85 is attached to the fitting mounting surface by the surface of the flange, there is no contact between the knob 85 and the surface of the adherend 2, so that the surface will not be damaged. Furthermore, as is clear from FIG. 4, the outer diameter of the knob 85 is large enough to make it easy to handle, and since it is close to the screw hole 22, the screw hole 22 is not directly visible from the outside, but is visible in the surface direction. Even if there is a misalignment, it is covered and the appearance is good.

The present invention is not limited to the above-mentioned embodiments; for example, the metal fitting 24 is not a bent plate, but a circularly squeezed one, or a Z-shaped plate, and the knob part may also be provided with a screwdriver, spanner, etc. as necessary. It is also possible to perform tasks that can be performed with other tools. The metal fittings may also be made of synthetic resin or the like instead of metal in view of the overall structure. others,
This includes chamfering everything and making the screw hole 11 a blind hole rather than a through hole in order to facilitate screwing.

(6) Effects of the invention As mentioned above, according to the set screw mechanism of the present invention, the set screw has a flange that cannot be inserted directly into the hole of the adherend, and presses and fixes the mounting surface. This makes it easy to screw the screw into the metal fitting as it is guided through the hole in the metal fitting, and there is no damage to the surface of the adherend, and there is no large inclination in the loosened state, which makes it look good and is practical.

[Brief explanation of the drawing]

1 and 2 are side cross sections of different conventional set screw mechanisms, FIG. 4 is a side cross section of an embodiment of the set screw mechanism of the present invention with the set screw loosened, and FIG.
The figure shows the installed and fixed state. In the figure, 1 is a mounting body, 11 is a screw hole, 2 is an adherend, 22 is a screw hole, 24 is a metal fitting, 25 is a mounting surface,
8 is a set screw, 81 is a screw, 84 is a collar, 85 is a knob, and 86 is a neck.

Claims (1)

[Scope of utility model registration request] a mounting screw hole formed in the mounting body; a screw hole formed in the adherend having a larger diameter than the mounting screw hole; a mounting surface protruding from the adherend and approaching the mounting body; A thread is formed on the outer surface of the threaded part that is threaded into the mounting screw hole and the intermediate part is threaded through the threaded hole of the adherend to press the mounting surface and fix the adherend to the mounting body. A set screw mechanism comprising a set screw having a flange.