JPS5927001Y2 - Multiple push lock switch - Google Patents

Description

[Detailed description of the invention] The present invention relates to a multiple button lock switch, and its purpose is to ensure that at least one circuit remains closed even when all of the switch's operation buttons return to the OFF position. It consists in trying to make it happen.

The multiple button lock switch has a plurality of operation buttons, and when one of the operation buttons is locked in the operation position, so-called on position, when the other operation button is operated, the above-mentioned lock occurs. This is a type of switch in which the operation button returns to its original position, the so-called off position, and the operated operation button is locked in the on position, and is used in band selection switches of radio receivers, etc.

However, in conventional switches of this kind, when all the operation buttons are turned to the off position, the switch circuits are all opened, which may cause problems with other electrical circuits.

Therefore, the present invention is designed to ensure that at least one circuit is always closed even when all the operation buttons are in the OFF position in the aforementioned multiple button switch. This will be explained with drawings.

Figure 1 shows an example of a dual bushing lock switch.
1 is a first switch part that is turned on and off by the first operation button A; 2 is a second switch part that is turned on and off by the second operation button B; 3 is the first switch part 1 turned on; This is a switch that turns on and off in conjunction with off.

4 is an input terminal, 5 and 6 are output terminals, the input terminal 4 is connected to the movable contact of the switch parts 1 and 2, and the output terminals 5 and 6 are connected to the on contact of the switch part 1 and the on contact of the switch part 2, respectively. has been done.

Further, the off contact of the second switch section 2 is connected to the output terminal 5 via the movable contact of the interlocking switch 3 and the off contact.

Note that the locking mechanisms for the operation buttons A and B are well known and are therefore omitted.

In the above embodiment, when the switch section 2 is in the on state, the operation button A is pressed.
As in the past, when is pressed, the switch section 1 is turned on, the switch section 2 is turned off, and the output is output only from the output terminal 5.

Next, due to some mechanical shock, etc., the operation buttons A and B are pressed.
When both return to the off position and switch parts 1 and 2 are both turned off, the input terminal is connected to the output terminal 5 via switch parts 2 and 3 as shown in FIG. The operation is equivalent to when the switch section 1 is turned on.

Therefore, there is no need to worry about causing unnecessary trouble to other circuits.

Figure 3 shows an example of a triple bushing lock switch.
In this embodiment, the second. An interlocking switch 14.15 is provided in the third switch section 12.13, and all switch sections 11 to 14.
13 is turned off, the input terminal 16 is connected to the output terminal 17 via the switch section 12.15 or the switch section 13.14.

In this way, for n series of bushlock switches, (n
-1) It is possible to always close one circuit by simply adding a switch with two circuit contacts.

As described above, according to the multiple button lock switch of the present invention, at least one circuit is always closed even when all operation buttons are in the OFF position, so other circuits are not required. This will prevent any trouble from occurring.

[Brief explanation of the drawing]

Fig. 1 is a circuit diagram of a multiple bush lock switch according to one embodiment of the present invention, Fig. 2 is a circuit diagram explaining its operation, and Fig. 3 is a circuit diagram showing another embodiment of the present invention. be. A, B...Operation button, 1...First switch section, 2...Second switch section, 3...
Interlocking switch section, 4... Input terminal, 5, 6...
...Output terminal.

Claims (1)

[Scope of utility model registration request] It has multiple operation buttons, and when one operation button is locked in the operation position and you operate another operation button, the locked operation button returns to its original position, and the operated operation button returns to the operation position. In a multiple button lock switch configured to be locked, the switch is linked to the switch corresponding to the operation button, and any one circuit can be closed even when all the operation buttons are returned to their original positions. A multiple bush lock switch characterized by having a switch that connects the switch.