JPH0723855Y2 - Push button switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a pushbutton switch having two independent circuits used in a multifunction telephone for power failure and the like.

2. Description of the Related Art FIG. 6 shows the structure of a conventional push button switch.
In FIG. 6, a contact in which comb-like contacts are alternately arranged
14, the contact 15 and the conductive rubber 12 function as the first switch,
Similarly to the above, the contacts 16 and the contacts 17 and the conductive rubber 13 in which the comb-shaped contacts are alternately arranged constitute a second switch, and by pressing the button 11 in parallel, the conductive rubbers 12 and 13 are respectively Switching was performed by short-circuiting the contacts.

Problems to be Solved by the Invention However, in the above conventional configuration, as shown in FIG.
When the end of the button 11 is pushed, there is a problem that only one of the first switch and the second switch can be switched.

The present invention solves such a problem, and provides an excellent push button switch capable of always switching two switches at the same time when the button is pushed.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides at least two independent fixed contacts which are alternately provided adjacent to each other, and which face each other and are adjacent to each other. Alternately and alternately, at least two independent movable contacts provided in the same shape as the fixed contacts, and a button provided with a downwardly protruding pressing portion that presses and short-circuits the fixed contacts and the movable contacts for switching. And constitute a pushbutton switch.

Operation With this configuration, the two switches intersect with each other at a short pitch, and the two switches can always be simultaneously switched.

Embodiment FIG. 1 shows components of an embodiment according to the present invention. The radial contacts 5 and 6 adjacent to each other on the printed circuit board 9, the radial contacts 3 and 4 which are arranged so as to face the radial contacts 5 and 6 and have the same shape, the flexible substrate 7 having them, and the radial contacts 3 and 4 described above. And a spacer 8 for keeping the contacts 5 and 6 at a constant interval, and a button 1 having a button holding portion 10 made of an elastic material such as silicon rubber is arranged above them to enable vertical movement. Pressing part 2 that transmits the pressing force of button 1 to contacts 3 and 4 on the bottom
A pressing portion 2 protruding downward is provided. 2 and 3 show the operation thereof, FIG. 2 shows a state in which the switch is OFF, and FIG. 3 shows a state in which the button 1 is pushed. Since the pressing portion 2 is composed of an elastic body, it is deformed by the pressing force of the button 1, and when the flexible substrate 7 is pressed down on the surface, both of the adjacent radial contacts 3 and 4 are opposed to each other. Can be shorted with 6. Fourth
FIG. 5 and FIG. 5 show another embodiment, in which the upper and lower contacts are constituted by one flexible substrate 7, and the pressing portion 2 is arranged only on the contact to efficiently press the button 1 to the contact. It is intended to be transmitted.

Effect of the Invention As described above, according to the present invention, at least two independent fixed contacts that are alternately provided adjacent to each other and the fixed contacts that face each other are alternately arranged adjacent to each other.
At least two independent movable contacts provided on a flexible base material such as a flexible substrate in the same shape as the fixed contacts, and pressed to project the fixed contacts and the movable contacts to short-circuit and switch. Since it is composed of a button provided with a portion, it is possible to provide an excellent push button switch capable of always reliably switching the respective switches consisting of the above two fixed contacts and the movable contact when the button is pressed.

[Brief description of drawings]

FIG. 1 is a perspective view of the components of an embodiment of the push button switch of the present invention, and FIG. 2 is an embodiment using the components of the push button switch of FIG. 1 when the button is in a steady state. Sectional view, FIG. 3 is a sectional view when the button is pressed, FIG. 4 is a sectional view of an embodiment in which the pressing portion is arranged only above the contact in the present invention, and FIG. 5 is a plan view showing a contact shape pattern. FIGS. 6 and 6 are cross-sectional views when the button is in a steady state in the conventional example, and FIG. 7 is a cross-sectional view when the button is pushed. 1 ... Button, 2 ... Pressing part, 3 ... Contact, 4 ... Contact, 5 ... Contact, 6 ... Contact, 7 ... Flexible board, 8 ... Spacer, 9 ... Printed board.

Claims (1)

[Scope of utility model registration request] 1. At least two independent fixed contacts provided alternately adjacent to each other on an insulating substrate, and alternately adjacent to a lower surface of a flexible substrate so as to face each of the fixed contacts via a spacer. In addition, at least two independent movable contacts provided in the same shape as the fixed contact and a pressing portion protruding downward for pressing the flexible base material to short-circuit the fixed contact and the movable contact to perform switching. A pushbutton switch composed of a button provided.