JPH044334Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention is a simple structure that can stop the opening and closing of push-button switches of electronic equipment, etc. as necessary.
This invention relates to a key device that can be manufactured at low cost.

[Summary of the invention] The present invention is a switch opening/closing device that opens and closes by pressing the drive shaft of a switch by operating a push button that is normally at the front end due to the bias of a spring. A key member that moves forward and backward together with the push button is provided so that it can be inserted and removed freely, and the thickness of the key member and the stroke of the push button are set appropriately, so that when removing the key member, even if the push button is pushed in, the drive shaft will not be pressed. This is what I did.

[Prior Art] Some switches that can stop opening/closing operations as necessary include a cylinder lock provided with an electric contact.

[Problems that the invention aims to solve] This product has no performance problems, but it is extremely expensive.
For example, it is inappropriate to use it for the purpose of restricting programs or time to prevent children from watching too many vulgar programs such as TV or videos.

The present invention is convenient to use for such purposes.
The purpose is to provide inexpensive equipment.

[Means for solving the problem] The present invention is designed to open and close the drive shaft of the switch by pressing the push button, which is normally at the front end due to the bias of a spring, between the push button of the switch and the drive shaft. A key member that moves forward and backward along with the push button,
The above-mentioned problem can be solved by determining the thickness of the key member and the stroke of the push button so that it can be inserted and removed freely, and when the key member is removed, the push button will not press the drive shaft even if the push button is pushed in. It is a diagram.

[Function] In the present invention, since the thickness of the key member and the stroke of the push button are determined as described above, the key member corresponds to the key of a switch using a conventional cylinder lock, and when the key member is removed, , the switch does not open or close even if you operate the push button.

[Embodiment of the invention] The drawing shows an embodiment of the invention, in which 1 is a front panel of an electronic device, 2 is a printed wiring board,
Power switch 3 arranged on printed wiring board 2
is opened and closed by the movement of a drive shaft 4 protruding from the front.

The front part of the switch 3 enters into a square hole 5 bored in the panel 1, and the front end of the drive shaft 4 is located almost on the same plane as the front surface of the panel 1, and the front end of the drive shaft 4 is located in the center of both the upper and lower sides of the square hole 5. An engagement groove 6 is cut.

Reference numeral 7 denotes a push button with a U-shaped side surface, and bent pieces 7b facing upward and downward are bent at the rear ends of both upper and lower pieces 7a, respectively, and are bent at the center of the inner surface of both pieces 7a and slightly forward of the panel 1. A support piece 7d that is parallel to the front piece 7c of the push button 7 is connected to the push button 7.

The bent piece 7b of the push button 7 engages with the engagement groove 6 of the square hole 5 and is biased forward by the leaf spring 8, and the push button 7 normally protrudes to the front end.
When the front piece 7c is pressed, it moves back slightly.

A key member 9 is inserted and removed between the front piece 7c and the support piece 7d of the push button 7, and at the center of the rear surface of the key member 9 is a pressing protrusion that faces and is close to the front surface of the drive shaft 4 of the switch 3. 10 is formed, and a hand grip piece 9a facing forward is bent at one end of the key member 9.

In the above-described device of the present invention, when the front piece 7c of the push button 7 is pressed backward in the state shown in the drawing, the push button 7 is pushed together with the key member 9 against the leaf spring 8, and the key member 9 is pressed. The protrusion 10 pushes the drive shaft 4 of the switch 3, and the switch 3 opens and closes.

However, when the key member 9 is pulled out in the direction of the arrow in FIG. Drive shaft 4 of switch 3
cannot be pushed in, and switch 3 will not open or close.

[Effects of the invention] As is clear from the above, the device of the invention has a very simple structure, can be manufactured easily and inexpensively, and can be operated as needed by the simple operation of inserting and removing the key member. Since it is possible to stop the switch from opening and closing, it is very convenient to use it, for example, to limit the programs and time that children watch on TV or videos.

[Brief explanation of drawings]

FIG. 1 is a central vertical sectional side view showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line A--A in FIG. 3... Switch, 4... Drive shaft, 7... Push button, 8... Leaf spring, 9... Key member.

Claims (1)

[Scope of utility model registration request] In a switch opening/closing device for an electronic device that opens and closes by pressing the drive shaft of a switch in response to the operation of a push button that is normally at the front end due to a spring, a key member that moves forward and backward together with the push button is placed between the push button and the drive shaft. Operation of a switch for electronic equipment, which is provided so that it can be inserted and removed freely, and the thickness of the key member and the stroke of the push button are determined so that when the key member is removed, the push button does not press the drive shaft even if the push button is pushed in. Key device for stopping.