JPH05205567A - Panel switch - Google Patents

Abstract

PURPOSE:To reduce the sound generation at the time of inverting diaphragms by providing recessed parts on a base plate under an insulating sheet corresponding to the diaphragms. CONSTITUTION:A switch unit 24 is composed by sticking diaphragms 22 on an insulating sheet 21 on a base plate 60 by tapes 23 and recessed parts 61 are formed in the positions corresponding to the diaphragms 22 on the base plate 60. Then, by pushing down buttons 27, the diaphragms 22 are pushed down by the rods so as to invert the diaphragms 22 and the diaphragms 22 come in contact with circular contacts. Thereby, horseshoe-shaped contacts and the circular contacts are electrically conducted for performing switching the switches. At this time, since the underside of the sheet 21 has the spaces due to the recessed parts 61, the elastic force of the sheet 21 reduces an impact sound of the diaphragms 22 while reducing sound generation at the time of switching.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a panel switch used for a data input device such as an audio device.

[0002]

2. Description of the Related Art A conventional panel switch will be described with reference to FIGS. According to the figure, 50 is a substrate.
The insulating sheet 1 is arranged on the insulating sheet 1, and the diaphragm 2 is attached on the insulating sheet 1 with the tape 3 to form the switch unit 4, and the hinge portion 5 integrally forms the button 6 and the connecting portion 7 thereon. The connection button 8 is sandwiched by the case 10 having the button opening 9, and the switch unit 4 and the case 10 are fixed by the screw 11 to form a panel switch.

The structure of the switch unit 4 will be described in more detail. A horseshoe-shaped contact 12 made of a conductive material on the insulating sheet 1, a circular contact 13 formed so as to be adjacent to the inside thereof, and a circular contact 13 formed thereon. A horseshoe-shaped contact 12 is formed by using a tape 3 in which a substantially dish-shaped diaphragm 2 formed of a metal having a spring property such as stainless steel or phosphor bronze for spring is coated on one surface of a polyester having a thickness of 12 to 100 microns with an adhesive material.
The rod 14 is arranged on the same circle center so as to be in contact with each other, and the rod 14 that moves up and down the central portion of the diaphragm 2 by operating the button 6 is arranged thereon.

The operation of the panel switch will be described. When the button 6 is pushed down in the state of FIG. 5A, the rod 14 pushes down the diaphragm 2, and FIG.
Diaphragm 2 is inverted as shown in
And the circular contact 13 contact each other, and the horseshoe-shaped contact 12 and the circular contact 1
3 becomes electrically conductive and switching is performed. Also,
When the pressing force of the button 6 is removed, the original state is restored by the return force of the diaphragm 2.

FIG. 6 shows another conventional panel switch, in which an insulating sheet 15 is arranged on a substrate 51, contacts 15a on the upper surface of this insulating sheet 15 and contacts on the lower surface of another insulating sheet 16 having elasticity. 16a are opposed to each other with a gap through the opening of the insulating sheet 17 so that the switch unit 6
The button 18 having the rod 18a is arranged on the button 18, the button 18 is held by the case 19, the button 18 is pressed to invert the diaphragm 7, and the contact 1
5a and the contact 16a are switched.

[0006]

However, in the above-mentioned structure, when the diaphragms 2 and 7 are inverted, the diaphragms 2 and 7 interpose the insulating sheets 1 and 15 with the substrates 50 and 5 therebetween.
There was a problem that the generated sound that collided with No. 1 was large and, for example, it was recorded by a microphone close to some devices.

In view of the above point, the present invention has an object to provide a panel switch in which noise generated when the diaphragm is reversed is reduced.

[0008]

In order to solve the above problems, the present invention provides a panel switch by providing a recess on a substrate below an insulating sheet corresponding to a diaphragm.

[0009]

With the above structure, the impact of the diaphragm colliding with the substrate via the insulating sheet is alleviated by the elasticity of the insulating sheet, and the collision noise is reduced.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the panel switch of the present invention will be described below with reference to FIGS. 1 to 2A and 2B.

As shown in FIG. 1, reference numeral 60 denotes a substrate, and the diaphragm 22 is attached to the insulating sheet 21 on the substrate 60 with a tape 23 so that the switch unit 2
4 and the diaphragm 22 is attached to the substrate 60.
The concave portion 61 is formed at a position corresponding to. On the switch unit 24, a connecting button 29 having a button 27 and a connecting portion 28 integrally formed by a hinge portion 26 is sandwiched by a case 31 having a button opening 30, and the switch unit 24 and the case 31 are fixed by a screw 32 to fix the panel. Configures the switch.

The panel switch will be described in more detail with reference to FIGS. 2A and 2B. The depth is 0.01 mm to 0.5 mm.
A horseshoe-shaped contact 36 formed of a conductor on the insulating sheet 21 on the substrate 60 having a recess 61 of mm, a circular contact 33 formed so as to be adjacent to the inside thereof, and a phosphorus for a stainless steel or a spring. Using a substantially plate-shaped diaphragm 22 formed of a springy metal such as bronze or a polymer material such as polyester, a tape 23 in which an adhesive material is applied to one side of polyester having a thickness of 12 to 100 microns The horseshoe-shaped contact 36 and the horseshoe-shaped contact 36 are attached so as to be in contact with each other so as to be in contact with each other, and the rod 35 that is moved up and down by operating the button 27 is arranged thereon.

Next, the operation of the panel switch will be described. When the button 27 is pushed down in the state shown in FIG. 2A, the rod 35 pushes down the diaphragm 22,
As shown in FIG. 2 (b), the diaphragm 22 is inverted and the diaphragm 22 and the circular contact 33 come into contact with each other,
The horseshoe-shaped contact 36 and the circular contact 33 are electrically conducted to switch the switch. At this time, the insulating sheet 21
Since there is a space due to the concave portion 61 on the lower surface of the insulating sheet 2
The impact sound of the diaphragm 22 is reduced by the elastic force of 1. Next, except for the pressing force of the button 27, the diaphragm 2
The return force of 2 restores the original state.

FIG. 3 shows another embodiment of the panel switch of the present invention. According to FIG. 3, 71 is 0.0 depth.
1 mm to 0.5 mm is a concave portion provided in the substrate 70, and contacts the contact 41 formed of a conductor on the insulating sheet 42 on the substrate 70, and faces the contact 41 with a spacer 45 provided with a gap. Another elastic sheet 44 formed as
A contact plate 43 on the lower surface of the plate and a substantially plate-shaped diaphragm 47 formed of a metal having a spring property such as stainless steel and phosphor bronze for springs or a polymer material such as polyester are attached to the contact 43 at a position corresponding to the contact 43. , On it, button 4
It is constructed by arranging the rods 35 that move up and down by the operation of 9, and the impact noise at the time of switching is reduced by the recess 71 as in the embodiment of FIG.

[0015]

As described above, by providing the concave portion at a position corresponding to the diaphragm on the substrate under the insulating sheet, the panel switch in which the collision noise of the diaphragm is alleviated and the noise generated at the time of switching is reduced is provided. Is something that can be done.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of a panel switch of the present invention.

FIG. 2A is a sectional view of the same, and FIG. 2B is a sectional view of the same switching state.

FIG. 3 is a sectional view of the other embodiment.

FIG. 4 is an exploded perspective view of a conventional panel switch.

FIG. 5A is a sectional view of the same, and FIG. 5B is a sectional view of the same switching state.

FIG. 6 is a cross-sectional view showing another conventional panel switch.

[Explanation of symbols]

 21 Insulating Sheet 22 Diaphragm 23 Tape 24 Switch Unit 33 Circular Contact 36 Horseshoe-shaped Contact 41 Contact 42 Insulation Sheet 43 Contact 44 Elastic Sheet 45 Spacer 47 Diaphragm 60 Board 61 Recess 70 Board 71 Recess

Claims (2)

[Claims] 1. An insulating sheet having elasticity is provided on a substrate,
On the horseshoe-shaped contact on the insulating sheet and the substantially circular contact adjacent to the inside of the insulating sheet, a diaphragm made of a metal having a spring property is attached to the horseshoe-shaped contact with a tape using a tape. A panel switch in which a recess is provided in the substrate at a position corresponding to the diaphragm of the switch unit configured together. 2. An insulating sheet having elasticity is provided on a substrate,
The contact formed on the insulating sheet and the contact formed on the lower surface of another insulating sheet having elasticity are opposed to each other with a gap, and the diaphragm formed of a metal having spring property is used to correspond to the contact by using a tape. As described above, the panel switch is formed by bonding it to the upper surface of the other insulating sheet to form a switch unit, and having a concave portion at the substrate position corresponding to the diaphragm.