JPS6136018Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a switch operation device such as a dial illumination switch of a radio receiver.

Conventionally, in portable radio receivers that use dry batteries as their main power source, the dial illumination switch used to flash the dial illuminant, such as the pilot lamp, is only turned on while the operating button is pressed. It was common. This is to prevent the dial illumination switch from being accidentally left on when using a switch with a lock mechanism, thereby shortening the battery life. However, when using such a dial illumination switch, it is necessary to keep pressing the operation push button while the dial illumination light emitter is to be turned on. This is especially true when the dial is kept pressed for a long time in order to improve the display effect at a store. It was not possible to keep the illumination emitter on. Also, some devices that use AC power and batteries by selectively switching between them are designed so that the dial illumination body can be left on for a long period of time only when AC power is used, but this type of device had the disadvantage of increasing costs due to its circuit configuration.

In view of this, the present invention aims to provide a switch operating device that solves the above-mentioned problems by using simple and inexpensive component parts. I will explain.

1 and 2 are diagrams showing the main parts constituting the switch operating device of the present invention, 1 is a synthetic resin chassis, 2 is a circular hole 3 drilled in the chassis.
and a through hole consisting of square notch holes 4, 4 connected to the circular hole; 5 is a rib integrally formed along the through hole 2 on the back side of the chassis 1; 6, 6 is the lower end of the rib. These are a pair of anti-rotation protrusions integrally formed on the edge 5'. Reference numeral 7 denotes a push button for operating a lighting switch made of synthetic resin, which includes a cylindrical operation part 8, a disc-shaped collar part 9, a pair of opposing locking claw pieces 10, 10, and a pair of arc-shaped pressing pieces. 11, 11 are integrally formed. Reference numerals 12, 12 and 13, 13 are a locking step portion and a retaining hook portion formed on the locking claw pieces 10, 10.

In addition, the locking claw pieces 10, 10 are attached to the chassis 1 during assembly.
Since it must be bent inward in order to be inserted into the through hole 2, the shape is made to have elasticity.
Furthermore, as will be described later, the locking step portions 12, 12 formed on the locking claws 10, 10 of the push button 7 can freely move the chassis 1 when the push button 7 is pressed and when the pressure is released after being pressed. It is shaped to pass through the notch holes 4, 4.

FIG. 3 is a sectional view showing the assembled state of the switch operation device of the present invention, in which 14 is the radio receiver cabinet, 15 is the push button insertion hole drilled in the cabinet, and 16 is the flange 9 of the push button 7 and the chassis 1. 17 is a dial illumination switch for blinking a dial illumination lamp attached to the inner surface of the chassis 1. In Figure 3 A, the dial illumination switch 17 is OFF.
A dial illumination lamp such as a pilot lamp (not shown) is shown in a state in which it is turned off.

Next, the operation of the switch operating device constructed as described above will be explained.

Now, when the push button 7 is pressed in the direction of the arrow A in FIG. Then, the tip of the push button 7, that is, the tip of one of the locking claw pieces 10 presses the switching contact pieces 18, 18' of the dial illumination switch 17, and the switching contact pieces come into contact with each other, so that the dial illumination switch 17 is in the ON state. and the dial illumination lamp lights up.

If you want to turn off the dial illumination lamp immediately, remove your finger from the push button 7 in this state to release the pressure in the direction of the arrow A, and the elastic return force of the coil spring 16 installed between the push button 7 and the chassis 1 will be released. The push button 7 is pushed back upwards, the switching contact pieces 18, 18' of the switch 17 are separated, and the switch 17 is turned off.
Return to OFF state. At this time, the push button 7 is the locking claw piece 1.
The locking step portions 12, 12 of No. 0 and 10 return to their original positions through the notch holes 4, 4 of the chassis 1.

Next, if it is desired to keep the dial illumination lamp lit for a long time, push button 7 once down and then rotate it in the direction of arrow B in FIG. 4A. Push button 7 to about 90
When rotated, the locking steps 12, 12 of the locking claws 10, 10 of the push button 7 come into contact with the locking protrusions 6, 6 of the chassis 1, preventing further rotation. The upper edges 12', 12' of the locking steps 12, 12 of the push button 7 locking claw pieces 10, 10 and the chassis 1
is engaged with the lower edge 5' of the rib 5, and the switching contact pieces 18, 18' of the dial illumination switch 17 are brought into contact with one of the pressing pieces 11 of the push button 7, and the dial illumination switch 17 remains in the ON state. Push button 7 is locked. Therefore, even if you release your finger from the push button 7 in this state, the switch 17 remains in the ON state and the dial illumination lamp continues to light up. By pressing down and further rotating the push button 7 in this manner, the dial illumination lamp can be kept lit continuously.

In order to turn off the dial illumination lamp from this state, hold the push button 7 with your fingers and rotate the push button in the opposite direction to the above-mentioned rotation direction. Hole 4,
4 and press button 7 at this position.
When you release your finger, the push button 7 is pushed up by the coil spring 16 through the notch holes 4, 4 of the chassis 1. , contact piece 18,1 of switch 17
8' is separated, the switch 17 is turned off, and the dial illumination lamp is turned off.

Incidentally, FIG. 4B is a sectional view seen from direction C in FIG. 4A.

As described above, according to the switch operation device according to the present invention, depending on the application, the switch can be turned ON only while the push button is being pressed, or the switch can be locked in the pressed state even after the push button is released. You can choose whether to keep the switch in the ON state. Moreover, since the switch operating device of the present invention has a simple structure and is made up of inexpensive parts, it is extremely useful when used, for example, to operate the dial light switch of a portable type radio reception whose main power source is a dry battery. be.

[Brief explanation of the drawing]

Figure 1 A, B, and C are a plan view, sectional view, and bottom view of the chassis that constitutes the switch operating device of the present invention, and Figures 2 A and B are front views of the push button that constitutes the switch operating device of the present invention. 3A and 3B are cross-sectional views showing the assembled state of the switch operating device of the present invention, where A shows the state in which the push button is not pressed, and FIG. 3 B shows the state in which the push button is pressed. FIGS. 4A and 4B are a cross-sectional view of the switch operating device of the present invention, viewed from one direction and the other direction, showing a state in which the push button is locked. DESCRIPTION OF SYMBOLS 1... Chassis, 2... Through hole, 3... Circular hole, 4... Notch hole, 7... Push button, 10... Locking claw piece, 12... Locking step part, 16... Coil spring, 17... Dial illumination switch.

Claims (1)

[Scope of utility model registration request] A chassis having a circular hole and a notched hole connected to the circular hole, a push button including a locking claw piece and the locking claw piece being inserted into the through hole, and the push button. It consists of an elastic body for returning the push button inserted between the chassis and a switch that is operated to turn on and off in response to the pressed and returned states of the push button, and a locking claw piece of the push button. When the push button is pressed and when the push button is released after being pressed, it passes through the notch hole, and when the push button is rotated after being pressed, it engages with the chassis and pushes the push button. A switch operation device that is provided with a locking step that locks the switch in the state.