JPH0419690Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] The present invention relates to a panel mounting structure for a push button switch in which the body of the switch body is inserted into a mounting hole in a panel and fixed with a nut screwed into the body. It is.

[Background Art] As shown in FIG. 4, this type of push-button switch normally has a lamp that illuminates the push-button section 9 housed in the main body section 2;
Since the is circular, it is necessary to provide a positioning protrusion 13 on the back side of the flange portion 3 of the switch body 1, and correspondingly, a positioning hole 13 is also provided in the panel 11.
There are 4. However, this structure requires a space for providing the positioning protrusion 13 on the lower surface of the flange portion 3, and therefore the shape of the flange portion 3 must be increased accordingly, which is a limitation in terms of use or design.

Furthermore, as shown in Fig. 3c, when a plurality of pushbutton switches are closely arranged, the rectangular flange portions 3 serve to prevent each other from rotating, so the positioning protrusion 13 shown in Fig. 4 is unnecessary. In fact, it is desirable that the shape of the flange portion 3 be small, but since the conventional structure has a positioning protrusion 13, the troublesome processing of the positioning hole 14 is required even in such a case.

Also, as in the case where the flange portion 3 is circular,
When positioning is not required and only rotation prevention is required,
Normally, only a spring washer is sufficient, but even in such a case, the conventional structure still requires the complicated machining of the positioning hole 14.

[Purpose of the invention] The present invention was created in view of the above points, and its purpose is to provide cases where positioning and rotation prevention are required, cases where only rotation prevention is required, or cases where positioning and rotation prevention are required. To provide a push button switch which can be used properly according to the user's request when it is not needed.

[Disclosure of the invention] In the push button switch according to the invention, the cross-sectional shape of the body of the switch body is a shape in which a part of the circumference is cut off, and holes of the same shape as the body are provided in a rectangular metal plate, and the four corners are A washer, which is formed by bending diagonally on one side to form a claw piece and protruding a positioning protrusion on the other side, is held between the flange of the switch body and a nut screwed onto the circumferential surface of the body. By turning the washer over, you can select whether or not positioning is required, and by attaching and removing the washer, you can select whether or not positioning is required.
The feature is that it is possible to select whether it is unnecessary or not.

[Embodiment] FIGS. 1 and 2 show an embodiment of the push button switch according to the present invention. The switch body 1 is composed of a body 2 and a flange 3.
The cross-sectional shape is formed by cutting a part of the circumference, as shown in FIG. 1b. The washer 4 that is inserted into the body 2 is made of a rectangular metal plate made of a hard material such as stainless steel or iron, with a hole 5 having the same shape as the body 2, and four corners bent diagonally to one side to form a claw piece. 6 and a positioning protrusion 7 protruding from the other side.
It is held between a nut 8 screwed onto the circumferential surface of the nut 8.

FIG. 3 shows the state of use. First, when positioning and rotation prevention are required, as shown in FIG. Insert from below. In this way, the washer 4 is locked to the panel 11 by the positioning projection 7, and the switch body 1 is locked to the washer 4 by the cross-sectional shape of the body 2, so that the switch body 1 is fixed to the panel 11. It will be locked. Next, if positioning is not required and only rotation prevention is required, the washer 4 may be installed upside down as shown in Figure b. In this way, the switch body 1 is locked to the panel 11 by the claw pieces 6 of the washer 4 biting into the back surface of the panel 11. Furthermore, if a plurality of push button switches are to be arranged closely together, the washers 4 may be removed as shown in Figure c.

Note that the positioning protrusion 7 of the washer 4 can also be formed by a cut and raised piece.

[Effects of the invention] The present invention has a cross-sectional shape of the body of the switch body with a part of the circumference cut out, a hole with the same shape as the body, and diagonal detent pawls at the four corners of one side. A washer consisting of two pieces protruding from each other and a positioning protrusion protruding from the other side is installed between the flange of the switch body and a nut screwed onto the circumferential surface of the body, with either the claw piece or the protrusion. It is selected according to the type of use and is removably held so that it faces the flange side of the switch body, so depending on the attachment/detachment of the washer and the direction in which it is installed, positioning may be necessary or unnecessary and rotation prevention may be required. This has the advantage that the shape and dimensions of the flange portion can be freely selected and the installation space can be saved.

[Brief explanation of the drawing]

Fig. 1a is an exploded perspective view showing an embodiment of the present invention, b is a sectional view of the main parts of the same, Fig. 2 is a side view showing the assembled state of the same, and Figs. 3 a, b, and c are the same as the above. FIG. 4 is an exploded perspective view of a conventional example. 1 is the switch body, 2 is the body, 3 is the flange, 4 is the washer, 5 is the hole, 6 is the claw piece, 7 is the positioning projection, 8 is the nut, 9 is the push button, 10 is the connection terminal, 11 is the panel , 12 is a mounting hole, 13 is a positioning projection, and 14 is a positioning hole.

Claims (1)

[Scope of utility model registration request] The cross-sectional shape of the body of the switch body is a shape in which a part of the circumference is cut out, and a hole of the same shape as the body is provided, and claws for preventing rotation are provided diagonally at the four corners of one side, and the other side A washer with a protruding positioning protrusion is placed between the flange of the switch body and a nut screwed onto the circumferential surface of the body, and either the pawl or the protrusion is selected according to the type of use, and the switch is operated. A push button switch that is detachably held so that it faces the flange side of the main body.