JPS6230741Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a switch equipped with a mechanism for preventing erroneous operation.

BACKGROUND OF THE INVENTION Many types of switches are used in electronic equipment, devices, etc., which operate contacts manually to open and close circuits, control electrical signals, and switch circuits.

Although switches can be used to switch circuits extremely easily by manual operation, erroneous operation by an operator can easily cause serious damage to equipment, systems, etc. from which recovery is difficult. Therefore,
Switches used in the above-mentioned locations have conventionally been provided with covers to prevent erroneous operation.

Conventional accidental operation prevention covers include those with spring hinges that can be opened and closed, or those that completely cover the switch, and the cover must be opened or removed each time the switch is operated. or Of course, by including such a process, consideration has been given to encouraging the operator to pay attention to the switch operation and to prevent erroneous operation.

The above-mentioned erroneous operation prevention cover is a one-way operation switch that switches only the circuit state , is very suitable when this erroneous operation is serious, but when using a two-way operation seesaw switch etc. that alternately switches between state Even when the damage is significantly different,
There is a drawback that the erroneous operation prevention cover must be opened or removed every time the switch is operated.

The object of the present invention is to provide a switch equipped with an erroneous operation prevention mechanism that eliminates the above-mentioned drawbacks of the conventional erroneous operation prevention cover and improves switch operation without hindering the prevention of erroneous operation.

The switch of this invention has two parts attached to the chassis.
A directional operation switch, a switch cover that covers an operation surface of the switch, and an attachment for the switch cover, and the switch cover has a hole for allowing a finger to operate the switch in only one direction, and the chassis. The switch cover has a hole for attaching and detaching the switch, and by moving the switch cover linearly or rotationally, or by a combination thereof, the operation surface of the switch is exposed, and the switch can be operated in one other direction. Equipped with a mechanism to prevent erroneous operation.

Next, the present invention will be explained in detail with reference to the drawings.

The present invention is a two-way operation seesaw switch as described above, and when the damage caused by an erroneous operation is significantly different depending on the direction of operation, the erroneous operation is prevented only in the direction of operation where the damage caused by the erroneous operation is large, and the erroneous operation is prevented in other directions. The operation has been designed so that it can be performed in no way different from a normal switch operation.

FIG. 1 is a sectional view of the main parts of an embodiment of the present invention. 2a is a front view of the switch cover used in FIG. 1, FIG. 1b is a cross-sectional view taken along line A-A', and FIG. 1c is a cross-sectional view taken along line B-B'. The switch cover 10 has a groove 1 serving as a guide for movement, a hole 2 for attachment and detachment, a finger hole 3 for operating one of the levers of the switch, and a switch cover 4. A two-way operating switch 7 is attached to a switch mounting chassis 6. The two-way operation switch 7 is connected in a circuit such that the damage caused by an erroneous operation caused by pressing the portion 8-2 of the lever 8 is much greater than the damage caused by an erroneous operation caused by pressing the portion 8-1 of the lever 8. shall be taken as a thing. Even if we make this assumption, generality is not lost. The lever 8 is in a seesaw shape, and if you press the part 8-1, the lever 8
becomes as shown by the dotted line in FIG. 1, and the portion 8-2 protrudes.

The switch cover 10 covers the surface of the two-way operation switch 7 with the switch cover 4, and the part 8 of the lever 8
-1 is mounted on a switch mounting chassis 6 with a mounting tool 5 so that it can be pushed with a finger through a finger hole 3. Attachment takes place via hole 2. When the switch cover 10 is attached, the portion 8 of the lever 8
-1 can be easily operated through the finger hole 3 in the same manner as a normal switch operation, but the part 8-2 of the lever 8 is hidden by the switch cover 4 and cannot be operated. This prevents erroneous operation in the direction where the damage caused by erroneous operation is greater.

If you want to operate part 8-2 of lever 8,
If the switch cover 10 is linearly slid upward using the groove 1 as a guide in the case of FIG. 1, the portion 8-2 of the lever 8 will appear from the lower part of the switch cover 10 and can be operated.

Switches are frequently turned on and off during equipment inspections, tests, etc.
When turning off the switch, all you have to do is remove the switch cover 10, and hole 2 is used to make it easy to attach and detach.

The switch cover 4 is not limited to the shape of the embodiment, and if the two-way operating switch 7 and lever 8 do not protrude from the surface of the switch mounting chassis 6, it is necessary to provide a protruding part as the switch cover 4 on the switch cover 10. Instead, the switch cover 10 may be plate-shaped.

Further, the sliding direction is not limited to the direction in which the lever 8 is guided by the groove 1, but the portion 8-2 of the lever 8 can also be operated by sliding by rotating around the fixture 5. In this case, it goes without saying that the structure of the switch cover 4 must be such that there are no walls in the direction of rotation so that it can rotate and slide, and the groove 1 is not required in this case.

The erroneous operation prevention mechanism of the present invention can be used not only for the above-mentioned seesaw type switch but also for a push-button switch that pushes down the key top, a one-touch switch that uses a tactile finger, and the like.

Of course, the two-way operating switch of the present invention includes a case where two one-way operating switches are used as a two-way operating type.

As described above, the present invention has the effect that it is possible to improve the switch operation without hindering the prevention of erroneous operation compared to the conventional one.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the main parts of an embodiment of the present invention.
FIG. 2a is a front view of the switch cover used in FIG. 1, FIG. 2b is a cross-sectional view taken along line A-A', and FIG. 2c is a cross-sectional view taken along line B-B'. In the figure, 1...groove, 2...hole, 3...finger hole, 4...switch cover, 5...attachment, 6...
...Switch mounting chassis, 7...Two-way operation switch, 8...Lever, 10...Switch cover.

Claims (1)

[Scope of utility model registration request] A two-way operation switch attached to the chassis,
The switch cover includes a switch cover that covers the operation surface of the switch, and a mounting tool for the switch cover, and the switch cover has a hole for allowing the switch to be operated in only one direction with a finger, and a hole for attaching and detaching the switch to the chassis. and an erroneous operation prevention mechanism in which the operation surface of the switch is exposed by moving the switch cover linearly or rotationally, or by a combination thereof, so that the switch can be operated in the other direction. A switch that is characterized by: