JPH097455A - Switch structure - Google Patents

Abstract

PURPOSE: To provide a switch structure by which mutual opposing contact points can be easily positioned by arranging a first contact point on an under surface of an operating member, and arranging a second contact point on an inside surface of a projecting part of a downward projecting elastic body of the operating member. CONSTITUTION: When a button head part 12 of a push button 11 is pressed against elastic force of a swelling part 24 of a contact point rubber 23, the push button 11 rotates downward leftward with a rotary shaft 15 of an arm part 14 as the center. According to this rotation, the swelling part 24 of the contact point rubber 23 is pressed against a locking part 28 in a clock case 1, and is elastically deformed, and a second contact point 26 in the swelling part 24 contacts with a first contact point 18 of a switch base board 17, and makes the first contact point 18. By this constitution, the first contact point 18 and the second contact point 26 can be easily positioned, and installing workablity to the clock case 1 is improved, and since the first and the second contact points 18 and 26 are contacted with each other by deforming the swelling part 24 of the contact point rubber 23 by bringing it into contact with the locking part 28, they can be arranged in a free position in the clock case 1, and mounting efficiency can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch structure used in electronic equipment.

[0002]

2. Description of the Related Art For example, a switch of an electronic device is provided with a push button and a circuit board, and the push button is movably mounted in an outer case of the electronic device in a retracted direction and a circuit is provided below the push button in the outer case. There is widely known a structure in which a board is mounted and a contact pattern is provided on the circuit board in correspondence with a push button so that the push button is pressed to make the contact pattern of the circuit board.

[0003]

However, in such a conventional switch structure, when the push button is attached to the outer case and the circuit board is attached in the outer case, the push button and the contact pattern of the circuit board are made to correspond to each other. Since it has to be done, the positioning is troublesome and the workability of attaching the push button and the circuit board is poor. Further, in this switch structure, since the circuit board must be arranged below the push button so as to be opposed to each other, the outer case and the circuit board are mutually restricted, and there is also a problem of poor mounting efficiency. The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a switch structure that has good mounting workability, facilitates alignment of opposing contacts, and has high mounting efficiency.

[0004]

The present invention comprises a case,
An operating member that is tiltably provided on the case and has a first contact provided on a lower surface; and the operating member is attached to the operating member.
An elastic body in which a second contact point that can be brought into contact with and separated from the first contact point is provided on the inner surface of the projecting portion projecting downward of the operation member; and a locking portion provided so as to face the elastic body, When the operating member is not pressed, the first contact and the second contact are separated from each other, and when the operating member is pressed and tilted, the projecting portion of the elastic body abuts on the locking portion and is deformed. The contact point and the second contact point are in contact with each other.

[0005]

According to the present invention, the first contact is provided on the lower surface of the operation member tiltably provided on the case, the elastic member is attached to the operation member, and the protruding portion of the elastic member protruding below the operation member. Since the second contact point that can be brought into contact with and separated from the first contact point is provided on the inner surface of the, the mounting workability is good, the first contact point and the second contact point can be easily aligned, and the elastic body protrudes. The first and second contacts are brought into contact with each other by bringing the portion into contact with the locking portion and deforming it. Therefore, the circuit board is made to face below the operation member provided with the first contact as in the conventional case. It is not necessary to arrange it, and it can be arranged at any position in the case, which improves the mounting efficiency.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a timepiece will be described below with reference to FIGS. 1 and 2 are external views of the table clock. In this table clock,
A watch case 1 made of synthetic resin is provided. Watch case 1
Consists of a front case 2 and a rear case 3. A display unit 4 for displaying information such as time, a sound emitting unit 5 for emitting a sound such as an alarm sound, and a dial switch 6 for setting an alarm time and the like are provided on the front surface of the front case 2. Also, on the right side surface of the watch case 1, at the boundary between the front case 2 and the rear case 3,
A slide switch 7 for selecting ON / OFF of an alarm is provided. Further, a push switch 10 for stopping the generation of the alarm sound is provided at the boundary between the front case 2 and the rear case 3 on the upper surface of the watch case 1.

As shown in FIG. 3, the push switch 10 has a push button 11 made of synthetic resin. The push button 11 includes a hollow button head 12 and a stopper portion 1 provided at a lower front end (lower left in the figure) of the button head 12.
3 and an arm portion 14 provided on the lower portion of the rear end of the button head 12 (lower right portion in the figure). This arm part 1
A rear end portion of the reference numeral 4 is rotatably mounted in the timepiece case 1 by a rotation shaft 15. The upper part of the button head 12 is arranged in an opening 1a provided on the upper surface of the watch case 1 so as to be vertically movable. Stopper part 13
Corresponds to the abutting portion 16 provided on the upper portion of the watch case 1 at the upper end thereof.

A switch board 17 is attached to the lower surface of the push button 11 with screws 17a as shown in FIG. A first contact 18 is formed substantially in the center of the lower surface of the switch substrate 17, and connection electrodes 19 are formed on the upper and lower right portions of the lower surface. First contact 1
Reference numeral 8 denotes a pair of comb-teeth-shaped electrode patterns, each end of which is connected to the connection electrode 19 by a wiring pattern. Each of the connection electrodes 19 is electrically connected by a lead wire 20 to a main circuit board 21 vertically provided in the watch case 1 as shown in FIG. In addition, the middle of the lead wire 20 is hooked on a hook portion 22 provided on the lower surface of the push button 11.

On the lower surface of the switch board 17, as shown in FIG.
As shown in, a contact rubber (elastic body) 23 is attached. The contact rubber 23 has a bulging portion (protruding portion) 24 formed by bulging a rubber sheet downward, and a mounting portion 25 provided at a corner of the rubber sheet is provided at a predetermined position of the switch board 17. It is mounted on the switch board 17 by being press-fitted into the mounting hole 17b. In this case, a mounting hole 13a into which the mounting portion 25 of the contact rubber 23 is press-fitted is also provided at the portion of the stopper portion 13 of the push button 11 facing the mounting hole 17b of the switch board 17.
A second contact 26 is provided on the inner surface of the bulging portion 24 of the contact rubber 23 so as to come into contact with and separate from the first contact 18. The second contact 26 may be made of conductive rubber or may be made of insulating rubber having a conductive film formed on its surface. further,
The contact rubber 23 is locked by contacting the lower end of the bulging portion 24 with a locking portion 28 provided in the timepiece case 1. In this state, the elastic force of the bulging portion 24 pushes up the push button 11. The stopper portion 13 is in contact with the contact portion 16 in the watch case 1.

Push switch 1 for such a table clock
At 0, when the button head 12 of the push button 11 is pressed against the elastic force of the bulging portion 24 of the contact rubber 23, the push button 11 is rotated by the rotary shaft 15 of the arm portion 14 as shown in FIG. When the push button 11 is rotated, the bulging portion 24 of the contact rubber 23 is pressed against the locking portion 28 in the watch case 1 and elastically deforms. The second contact 26 therein contacts the first contact 18 of the switch substrate 17 to make up the first contact 18. The push button 11
When the external force is removed from above, the push button 11 becomes
4 is pushed up by the elastic force of the switch board 17 and the stopper portion 13 abuts on the abutment portion 16 in the watch case 1 and is regulated to the upper limit position as shown in FIG.
2 ascends in the opening 1a on the upper surface of the watch case 1, thereby returning to the initial state in which the upper portion of the button head 12 projects upward.

As described above, in the push switch 10 of the table clock, the switch substrate 17 is attached to the lower surface of the push button 11 rotatably provided in the timepiece case 1, and the first contact 18 is attached to the lower surface of the switch substrate 17. A contact rubber 23 having a bulging portion 24 bulging downward is attached to the lower surface of the switch board 17, and the contact rubber 23 is provided in the bulging portion 24 of the contact rubber 23 so as to contact and separate from the first contact 18. Since the two contacts 26 are provided, the first contact 18 and the second contact 26 can be easily aligned with each other, and the contact rubber 23
By attaching the push button 11 via the switch board 17 to the push button 11, a unit of the push switch 10 can be achieved, and the push button 11 unitized can be attached to the watch case 1, so that the assembling workability is good and the cost is low. Can be achieved. Further, in the push switch 10, the bulging portion 24 of the contact rubber 23 is brought into contact with the locking portion 28 in the timepiece case 1 to be deformed.
Since the contact 26 is brought into contact with the first contact 18, there is no need to dispose the circuit board below the push button 11 as in the conventional case, and the circuit board can be installed at a free position in the watch case 1. Therefore, the mounting efficiency can be improved. Is good.

Although the switch substrate 17 is attached to the lower surface of the push button 11 and the contact rubber 23 is attached to the switch substrate 17 in the above embodiment, the present invention is not limited to this, and the first contact 18 is attached to the lower surface of the push button 11. Alternatively, the contact rubber 23 may be directly attached to the lower surface of the push button 11. By doing so, the number of parts can be reduced, the assembling work becomes simpler, and
You can get a low price. Further, in the above embodiment, the contact rubber 23 is used as the elastic body, but the elastic body is not limited to this, and an elastic body such as a coil spring or a leaf spring may be used.
Furthermore, in the above embodiment, the case where the push switch 10 of the clock is applied is described, but the present invention is not limited to this.
The present invention can be widely applied to clocks such as wall clocks and switches of other electronic devices such as game machines.

[0013]

As described above, according to the present invention, the first contact is provided on the lower surface of the operation member that is tiltably provided on the case, and the elastic member is attached to the operation member. Since the second contact point that can be brought into contact with and separated from the first contact point is provided on the inner surface of the protruding portion of the elastic body projecting inward, the mounting workability is good, and the alignment between the first contact point and the second contact point is easy. In addition, since the first and second contacts are brought into contact with each other by contacting and deforming the protruding portion of the elastic body with the engaging portion, the circuit board is provided with the first contact as in the conventional case. It is not necessary to dispose the operation member below the operation member, but the operation member can be arranged at a free position in the case. Therefore, the mounting efficiency can be improved.

[Brief description of drawings]

FIG. 1 is an external front view of an embodiment in which the present invention is applied to a table clock.

FIG. 2 is a right side view of FIG.

FIG. 3 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 4 is a bottom view of the push switch of FIG.

5 is a cross-sectional view showing an operating state of the push switch shown in FIG.

[Explanation of symbols]

 1 Watch Case 10 Push Switch 11 Push Button 15 Rotating Shaft 17 Switch Board 18 First Contact 23 Contact Rubber 24 Swelling Part 26 Second Contact 28 Locking Part

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[Procedure amendment]

[Submission date] November 7, 1995

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Name of invention

[Correction method] Added

[Correction contents]

[Title of Invention] Switch structure

Claims (1)

[Claims] 1. A case, an operation member tiltably provided on the case, and provided with a first contact on a lower surface thereof, and an inner surface of a projecting portion attached to the operation member and projecting downward, the first And an engaging portion provided so as to face the elastic body, and the first contact is provided when the operating member is not pressed. And the second contact are separated from each other, and when the operating member is pressed and tilted, the projecting portion of the elastic body abuts on the locking portion and is deformed, and the first contact and the second contact are formed.
Switch structure characterized by being contacted with the contact point of.