JPH035048Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a keyboard switch, in particular, one type of push button device is mounted on a bent mounting plate.
The present invention is characterized by providing a keyboard switch with excellent operability.

An example of a conventional keyboard switch is the one shown in the side view of FIG. The keyboard switch 10 has a plurality of push buttons 12 provided on a flat switch board 11, and each push button 1
The pressing surface 12a of No. 2 has a concave shape as a whole to improve operability. However, according to such a configuration, pushbuttons of different shapes must be prepared, which increases the cost, and the moving direction of each pushbutton 12 is different from the direction perpendicular to the pressing surface 12a, making it difficult to press the button. It has drawbacks such as sometimes looking unnatural.

This invention was made in view of the above points,
Examples thereof will be described below with reference to the drawings.

FIG. 2 is an exploded perspective view of a switch sheet used in an embodiment of the keyboard switch according to the present invention. In the figure, a fixed contact sheet 2 made of a resin film is provided with a fixed contact electrode 21 and a pull-out pattern 22 connecting them on its upper surface, and each pull-out pattern 22 is pulled out to a tongue piece 23 to connect an electrode part 24. Form. And each fixed contact electrode 21
A rectangular hole 25 is bored between them.

The insulating sheet 3 has circular holes 31 at positions corresponding to the fixed contact electrodes 21 of the fixed contact sheet 2, slits 32 provided to connect them, and each circular hole 3.
A rectangular hole 35 sandwiching the hole 1 is provided.

The movable contact plate 4 is provided with a movable contact electrode 41 and a pull-out pattern 42 connecting them on its back surface, and each pull-out pattern 42 is pulled out to a tongue piece 43 to form an electrode portion 44.

The switch board is made by laminating an insulating sheet 3 on a fixed contact sheet 2, and further laminating a movable contact sheet 4 on the insulating sheet 3. At this time, the rectangular holes 25, 35, and 45 are aligned, and the fixed contact electrodes 21 and the movable contact electrode 41 are spaced apart so as to face each other across the circular hole 31 of the insulating sheet 3, forming a switch contact mechanism. For example, a mounting plate formed by pressing a metal plate has a rectangular hole 51 bored therein, as shown in the plan view of FIG. 3A and the side view of FIG. 3B, and the rectangular hole is cut into four parts. It is bent.

FIG. 4 is a diagram showing an embodiment of the keyboard switch according to the present invention, with FIG. 4A being a front view and FIG. 4B being a side view. Keyboard switch 20 in the diagram
is completed by pasting the flexible switch board 7 made of the above-mentioned fixed contact sheet, insulating sheet and movable contact sheet on the mounting plate 5, and attaching the push button device 6 on each switch contact mechanism. The button device 6 has a pair of claws 6 as shown in the perspective view of FIG.
1 and a pressing protrusion 62 approximately in the center thereof, and the claw portion 61 is attached to the mounting plate 5 by passing through the movable contact sheet, the insulating sheet, the fixed contact sheet, and the rectangular hole of the mounting plate. When the push button device 6 is pressed, the pressing protrusion 62 presses the switch contact mechanism to bring the movable contact electrode into contact with the fixed contact electrode, thereby switching the switch.

The above-described keyboard switch can be configured by attaching the flexible switch board 7 to the mounting plate 5 which has been bent into a predetermined shape in advance, and by simply attaching the push button device 6 of the same shape to the pressing surface 6a. Since it is arranged to form a concave surface as a whole, it has excellent operability, and since the pressing surface 6a is perpendicular to the direction of movement, pressing can be performed easily. Further, it is sufficient to prepare only one type of push button device, and the cost can be reduced. In the above embodiments, the method of bending the mounting plate 5 is not limited to this, and any method of bending can be used depending on the shape or purpose of the keyboard switch.

As mentioned above, according to the keyboard switch of the present invention, by arbitrarily bending the mounting plate, the pressing surface can be placed at a desired position using one type of push button switch. Excellent operability, push buttons can be easily performed, and costs are reduced.The flexible switch board is affixed to the mounting plate and integrated, making it easy to replace pushbuttons, and switch contacts It has the advantage of stably holding the mechanism.

[Brief explanation of drawings]

Figure 1 shows a conventional keyboard switch.
FIGS. 2, 3, 4, and 5 are diagrams showing embodiments of the keyboard switch according to the present invention. 2...Fixed contact sheet, 3...Insulating sheet, 4
...Movable contact sheet, 5...Mounting plate, 6...Push button device, 7...Switch board.

Claims (1)

[Scope of utility model registration request] A push button device is provided on each switch contact mechanism of a mounting plate to which a flexible switch board forming a plurality of switch contact mechanisms is attached, and the switch can be changed by pressing the push button device. The keyboard switch is configured such that the mounting plate is formed of a metal plate bent in advance between the switch contact mechanisms, and the push button device is mounted on the flat surface of the mounting plate.