JPH0319140Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a push button switch used in the keyboard of personal computers, word processors, etc., and in particular, the invention relates to a push button switch used in keyboards of personal computers, word processors, etc. This invention relates to an improvement in a push button switch that is attached to a mounting hole in a panel board through a push button switch.

(Prior Art) For example, the keyboard of a personal computer widely employs a sculptural arrangement in which the key tops of each push button switch are arranged at a constant angle of inclination.

For this reason, conventionally, as shown in FIG. 3A, a plurality of rectangular switch bodies 1 are connected to a flat panel board 5
Sculpture arrangement was performed by attaching key tops 7 to the mounting holes of B and using key tops 7 of different shapes on the switch bodies 1 of each row. Since it is necessary to prepare key tops 7 with different
This had a major problem in terms of cost.

Therefore, in recent years, as shown in FIG. A curved keyboard is provided.

(Problem to be solved by the invention) However, such a curved keyboard can use the same key top 7 in each row, so it is very advantageous in terms of cost compared to the conventional one, but the switch body is This resulted in a new problem in the installation state of the.

That is, in the case of a curved keyboard, the stopper pieces 2 formed on the four sides of the rectangular switch body 1 are all formed at the same height, and the four stopper pieces 2 and the separately formed claws are arranged at the same height. Since the part 3 is attached to the mounting hole of the panel board, if the panel board is the flat panel board 5B, the fourth part is attached to the mounting hole of the panel board.
As shown in Figure A, there is no problem because the edges of the mounting hole 6 can be securely clamped by the four stopper pieces 2 and the corresponding claws 3, but if you try to attach it to the curved panel board 5A, As shown in FIG. B, the edge of the mounting hole 6 of the curved panel board 5A is unstable, with the edge of the mounting hole 6 dropping down to the vicinity of the tip of the claw part 3, resulting in an unstable mounting condition. When soldering the terminal 4 of the pushbutton switch to a printed circuit board (not shown) from below, the switch body 1 may be pushed up and lifted off the panel board 5A and removed from the mounting hole 6. It was often seen.

Moreover, once the switch body 1 is removed, it must be reattached to the mounting hole 6, which makes the assembly work extremely complicated, and this actually hinders the reduction in the cost of keyboards. .

(Means for Solving the Problems) The present invention was developed to effectively solve the above problems, and includes stopper pieces formed on each of the four sides of the rectangular switch body. In a push button switch in which the switch body is attached to a mounting hole on a panel board through a stopper piece and a pawl formed separately, a stopper piece dedicated to curved surfaces is formed on one of the four opposing faces of the switch body, and a stopper piece dedicated to curved surfaces is formed on the other opposing face. Along with forming a stopper piece exclusively for flat surfaces,
A configuration is adopted in which the stopper piece for curved surfaces is formed at a higher position on the switch body than the stopper piece for flat surfaces.

(Function) Accordingly, when the present invention is installed on a curved panel board, by using a stopper piece exclusively for curved surfaces formed on one opposing surface of the switch body, the stopper piece and the claw part The edge of the mounting hole can be securely clamped with the rim, and when mounting on a flat panel board, by using the flat stopper piece formed on the other opposing surface,
Since the stopper piece and the claw can securely clamp the edge of the mounting hole, the switch body can be reliably mounted on either a curved or flat panel board.

(Embodiment) Hereinafter, the present invention will be described in detail based on an embodiment illustrating a push button switch according to the embodiment.
As shown in the figure, stopper pieces are formed on each of the four sides of the rectangular switch body 11, and claws 1 are formed at both lower ends of one of the opposing stopper pieces.
3, and the switch body 11 is attached to the mounting hole of the panel board through the stopper piece and the claw part 13, but the feature is that one of the four opposite sides of the switch body 11 has a dedicated curved surface. Stopper pieces 12a, 12a are formed, and stopper pieces 12b, 12b exclusively for flat surfaces are formed on the other opposing surface, and the stopper piece 12a, exclusively for curved surfaces, is placed at a higher position on the switch body 11 by a certain distance α than the stopper piece 12b, exclusively for flat surfaces. When mounting on a curved panel board, only two curved surface stopper pieces 12a are used, and when mounting on a flat panel board, only two flat stopper pieces 12b are used. It is something.

Therefore, when a push button switch having such a configuration is installed in the mounting hole 16 of the flat panel board 15B, the flat stopper pieces 12b, 12b formed at a low position are used, as shown in FIG. 2A. However, in this case, the edge of the mounting hole 16 can be ideally clamped by the two stopper pieces 12b and the corresponding claw portions 13, so that the switch body 11 can be firmly mounted to the mounting hole 16. Become.

In addition, when mounting on a curved panel board 15A, only the curved surface stopper pieces 12a, 12a formed at a high position are used, as shown in FIG. 2B. is absorbed by the high position dimension α of the stopper piece 12a, and each stopper piece 12a and the claw portion 13 can ideally hold the edge of the mounting hole 16 of the curved panel board 15A, so that the switch body 11 can fit into the mounting hole. 16
It will be firmly attached to the

Therefore, even when soldering the terminal 14 of the push button switch to the printed circuit board, the switch body 1
Since there is no fear that 1 will float up from the curved panel board 15A and come off the mounting hole 16, assembly work becomes extremely simple.

(Effect of the invention) As described above, the present invention forms a stopper piece exclusively for curved surfaces on one of the four opposing surfaces of the switch body, forms a stopper piece exclusively for flat surfaces on the other opposing surface, and also forms a stopper piece exclusively for curved surfaces on the other opposing surface. It is characterized by being formed at a higher position on the switch body than the dedicated stopper piece, so when installing it on a curved panel board, use the curved stopper piece formed on one opposing surface of the switch body. However, when mounting on a flat panel board, if you use the flat stopper pieces formed on the other opposing surface, each stopper piece and the claw can securely hold the edge of the mounting hole, so it can be mounted on a curved or flat panel board. It is now possible to reliably attach the switch body to any flat panel board.

Therefore, even when soldering the terminals of a push button switch to a printed circuit board as in the past, the switch body is pushed up and lifted off the panel board.
Since it can be completely prevented from coming off from the mounting hole, the assembly work is not only greatly simplified, but also greatly contributes to cost reduction.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the main parts showing the relationship between the push button switch and the panel board according to the present invention, Fig. 2 A is a front view of the main parts showing the state where the push button switch is attached to the flat panel board, and Fig. 2 B is FIG. 3A is a front view of the main part showing the state where it is attached to a curved panel board;
4 is an explanatory diagram of a conventional example showing a state in which sculptures are arranged using a flat panel substrate; FIG. 4A is an explanatory diagram of a conventional example showing a state in which sculptures are arranged using a curved panel substrate; FIG. 3B is a front view of the main part showing the switch main body attached to a flat panel board, and FIG. 11... Switch body, 12a... Stopper piece for curved surfaces, 12b... Stopper piece for flat surfaces,
13...Claw portion, 14...Terminal, 15A...Curved panel board, 15B...Flat panel board, 16...
Mounting hole.

Claims (1)

[Scope of utility model registration request] In a push button switch, a stopper piece is formed on each of the four sides of a rectangular switch body, and the switch body is attached to a mounting hole of a panel board through the stopper piece and a separately formed claw part. A stopper piece exclusively for curved surfaces is formed on the opposing surface of the switch, and a stopper piece exclusively for flat surfaces is formed on the other opposing surface, and the stopper piece exclusively for curved surfaces is formed at a higher position on the switch body than the stopper piece exclusively for flat surfaces. Push button switch.