JPH11191340A - Switch device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensively manufactured switch device with a simple structure that avoids unexpected turning on by locking it being in the off condition even if an article is being placed on the switch. SOLUTION: This switch device consists of a printed circuit beard 3 with a switch part 2 provided on its surface, a rubber plate 5 having a plurality of pushbuttons 4 provided above the printed circuit board 3, and an insulating sheet 6 provided between the printed circuit board 3 and the rubber plate 5. The insulating sheet 6 is movable and forms a hole part 8 that enables contacting a conductive part 7 on a back surface of the rubber 5 and the switch part 2 when the rubber plat 5 is pressed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric device such as a television, and a switch device for the electric device.

[0002]

2. Description of the Related Art In general, a switch device such as a remote control transmitter for a televideo, when an article is placed on the switch device even when the switch device is in an OFF state in which a push button is not pressed, is used as a switch. There is a problem that the push button is pressed and the switch is turned on depending on the weight of the switch.

In order to solve this problem, for example,
An operation switch with a slider described in -108828 is proposed. As shown in FIG. 3 and FIG. 4, this operation switch with a slider
5 are integrally connected by a vine-shaped connecting arm and attached to the slider 104, and the slider 104 is attached to the upper lid 102a.
A guide groove 102j slidably fitted into the guide groove 102j provided between the case 107 and the case body 102b, and a substrate 107 having a switch SW is housed in the case 102.

When the slider 104 is slid to the movable side and the key top 105 is pressed, the corresponding switch section SW is turned on. When the slider 104 is slid to the lock side, the key top 105 is engaged with the engaging groove. 105c and 105d ride on the protrusions of the stoppers 110 and 111 and are locked.

[0005]

In the above-mentioned conventional operation switch with a slider, even if an article is left on the switch, if the switch is locked, the switch is not turned on. Since grooves, engagement grooves, stoppers, and the like are provided, there is a problem that the structure is complicated and the manufacturing cost is increased.

According to the present invention, it is possible to prevent the switch from being inadvertently turned on by locking the switch to the OFF state even when the article is kept on the top, and to manufacture the switch at a low cost with a simple structure. It is an object of the present invention to provide a switch device that can perform the switching.

[0007]

According to a first aspect of the present invention, there is provided a printed circuit board having a switch portion on a surface thereof, and a plurality of push buttons provided above the printed circuit board. And a switch device comprising an insulating sheet interposed between the printed board and the rubber plate, wherein the insulating sheet is movable, and the rubber plate is pressed when the rubber plate is pressed. And a hole that allows the conductor on the back surface of the switch to contact the switch.

According to a second aspect of the present invention, the insulating sheet has an operation portion exposed on a surface or a side surface of the switch device main body, and by moving this operation portion, the plurality of holes are formed. ON state at the position of the push button, and the ON state where the insulating portion is at the position of the plurality of push buttons.
It is characterized in that it is configured to change to the FF state.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a switch device according to the present invention will be described below with reference to the drawings. FIG.
3A is a longitudinal sectional view showing a main part of the switch device according to the embodiment, FIG. 4A is a longitudinal sectional view showing a state where the switch is kept in an OFF state, and FIG.

The switch device 1 of the embodiment shown in FIGS. 1A and 1B includes a printed circuit board 3 provided with a plurality of switch units 2 on the surface and a plurality of push buttons 4 provided above the printed circuit board 3. And an insulating sheet 6 movably interposed between the printed board 3 and the rubber plate 5. The insulating sheet 6 has a plurality of holes that allow the plurality of conductors 7 on the back surface of the rubber plate 5 and the plurality of switches 2 of the printed circuit board 3 to contact each other when the rubber plate 5 is pressed. A part 8 is formed.

In this switch device 1, as shown in FIG. 1A, the insulating portion 9 of the insulating sheet 6 other than the plurality of holes 8 is connected to the plurality of conductors 7 on the back surface of the rubber plate 5 and the printed circuit board 3. When one of the push buttons 4 of the rubber plate 5 is pressed, the plurality of conductor portions 7 on the back surface of the rubber plate 5 are in contact with the insulating portion 9 even when the push button 4 of the rubber plate 5 is pressed. The switch section 2 of the printed circuit board 3 does not touch the switch section 2 so that the OFF state is maintained.

Therefore, even if an article (not shown) is inadvertently placed on the switch device 1, the switch device 1 is not turned on but turned off.
Can be kept in condition. Also, switch device 1 is turned on.
As shown in FIG. 1B, the plurality of conductors 7 on the back surface of the rubber plate 5 and the plurality of switch units 2 of the printed circuit board 3 are opposed to each other, as shown in FIG. When any one of the push buttons 4 of the rubber plate 5 is pressed by locating the plurality of holes 8 of the insulating sheet 6 at the positions where the holes 8 are formed, the conductors 7 on the back surface of the rubber plate 5 The switch enters the switch section 2 of the printed circuit board 3 and turns on.

As described above, the rubber plate 5 and the printed board 3
Since only the insulating sheet 6 having a plurality of holes 8 formed therein is movable between them, the structure is simple and the manufacturing cost can be reduced. FIG. 2 is a perspective view of a remote control transmitter 1A which is an example of the switch device of the present invention.

The remote control transmitter 1A has the same structure as that described for the switch device 1 described above, and further includes a guide hole 12 formed on a side surface of the switch device body 10 in the insulating sheet 6. Operation unit 11 exposed to the outside
Is provided. The operation unit 11 is moved in the direction of the arrow in FIG. 2 so that the plurality of holes 8 of the insulating sheet 6 are positioned at the positions of the plurality of push buttons 4 of the rubber plate 5 as shown in FIG. As shown in FIG. 1 (a), an ON-enabled state at (the position of the conductor 7 on the back surface of the rubber plate 5)
The insulating portion 9 of the insulating sheet 6 can be changed to an OFF state in which the position of the plurality of push buttons 4 of the rubber plate 5 (the position of the conductor 7 on the back surface of the rubber plate 5). The operation unit 11 may be provided on the surface of the switch device main body 10.

As described above, by moving the operation unit 11 provided on the insulating sheet 6 and exposed on the side surface of the switch device main body 10, the remote control transmitter 1A is switched between the ON state and the OFF state. Since the state can be set, the operation can be simplified, and the structure is also simple. Note that the present invention is not limited to the remote control transmitter 1A described above, but can of course be applied to switch devices of other electronic devices and electric devices.

[0016]

As described above, according to the first aspect of the present invention, the hole of the insulating sheet does not exist between the conductor on the back surface of the rubber plate and the switch of the printed circuit board.
When the insulating part other than the hole is located, the conductor and the switch do not come into contact with each other even if the push button on the rubber plate is pressed, so the switch is locked to the OFF state even when the article is left on the rubber plate. Switch is careless
N can be prevented.

In addition, since the configuration is such that only an insulating sheet having a hole is interposed between the rubber plate and the printed board, it can be manufactured at a low cost with a simple structure. According to the second aspect of the present invention, since the insulating sheet has the operation unit exposed on the surface or the side surface of the switch device main body, the ON operation state and the OFF state can be performed simply by moving the operation unit. The operation is simple and the structure is simple.

[Brief description of the drawings]

FIG. 1 shows an internal structure of a switch device according to an embodiment of the present invention, in which (a) is a longitudinal sectional view of a main part showing an OFF state,
(B) is a longitudinal sectional view of a main part showing an ON enabled state.

FIG. 2 is a perspective view of a remote control transmitter which is an example of the switch device of the present invention.

3A and 3B are cross-sectional views showing a conventional operation switch with a slider, in which FIG. 3A is a cross-sectional view taken along line AA, FIG. 3B is a cross-sectional view taken along line BB, and FIG. FIG.

FIG. 4 shows a conventional operation switch with a slider.
(A) is a front view, (b) is a left side view, (c) is a right side view, and (d) is a plan view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Switch apparatus 2 Switch part 3 Printed circuit board 4 Push button 5 Rubber plate 6 Insulating sheet 7 Conductor part 8 Hole part 10 Switch apparatus main body 11 Operation part

Claims (2)

[Claims] 1. A printed circuit board having a switch section on its surface, a rubber plate having a plurality of push buttons provided thereabove, and an insulating sheet interposed between the printed board and the rubber plate. Wherein the insulating sheet is movable and forms a hole that allows the conductor on the back surface of the rubber plate to contact the switch when the rubber plate is pressed. A switch device characterized by the following. 2. The switching device according to claim 1, wherein the insulating sheet has an operation unit exposed on a surface or a side surface of the switch device main body, and by moving the operation unit, the hole is located at the position of the plurality of push buttons. 2. The switch device according to claim 1, wherein the switch device is configured to change between an ON state and an OFF state in which an insulating portion is located at the position of the plurality of push buttons. 3.