JPH10199366A - Push-pull switch - Google Patents

Abstract

(57) [Summary] [Problem] To provide a push-pull switch used in various electronic devices, which can be used for a wide range of voltage and current, and has a sufficient operating force and a stable return position. With the goal. A fixed contact made of a metal material is provided on an inner side wall.
An operation body 5 holding a movable contact piece 6 made of an elastic metal material on a side surface is housed in a case 1 in which 3, 3 and 4 are planted, and a movable contact piece 6 made of an elastic metal material is vertically movable. Operation body 5
The lower end of the coil spring 8 inserted into the spring insertion portion 5A in a slightly bent state comes into contact with the projection 1A of the case 1 and the upper end also contacts the back surface 7B of the cover 7 covering the open portion of the case 1. Configure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push-pull switch used for switching a wide range of voltage and current in various electronic devices.

[0002]

2. Description of the Related Art A conventional push-pull switch will be described with reference to FIGS.

FIG. 13 is a cross-sectional view of a conventional push-pull switch, and FIG. 14 is a cross-sectional view of the push-pull switch when operating in the pull direction. In FIG. An operation body provided with a character-like operation element 12B, and a cover 13 that supports the operation section 12A so as to be slidable in both push and pull directions.

[0004] Also, 14 is a contact portion 14 facing each other.
Reference numerals A, 14B and 14C, 14D denote switch substrates provided on the upper and lower surfaces, which are fixed to a support (not shown) and arranged at the center of the U-shaped operation element 12B of the operation body 12.

[0005] 17 and 18 are switch boards 1
4 are substantially hemispherical elastic rubber caps respectively attached to both surfaces of the base plate, and the bottom inner surface thereof is made of a conductive rubber for conducting between the contact portions 14A and 14B and between the contact portions 14C and 14D provided on the switch substrate 14. Children 17A and 18
A is provided.

In the above configuration, the operating unit 1 of the operating body 12
When 2A is pulled in the pull direction, as shown in FIG.
2, the lower end of the operation element 12B is attached to the elastic rubber cap 18 attached to the lower surface of the switch board 14 with the upward movement of the operation element 12B.
Is deformed, and the contact 18A provided on the inner surface at the bottom thereof conducts between the contact portions 14C and 14D provided on the switch board 14, and when the pulling operation is released, the operating body 12 is resiliently restored by the elastic rubber cap 18 itself. It moves downward and returns to the OFF state in FIG.

On the other hand, when the operating portion 12A is pushed in the push direction, the upper end of the U-shaped operating member 12B deforms the elastic rubber cap 17 mounted on the upper surface of the switch substrate 14, and the inner surface of the bottom portion is formed. The contact 17A provided on the switch board 14 conducts between 14A and 14B provided on the switch board 14, and when the pressing operation is released, the elastic rubber cap 17 returns to the OFF state in FIG. I was

[0008]

However, in the push-pull switch having the above-mentioned structure, the contact portions 14A and 14B and the contact portions 14C and 14D of the switch board 14 are electrically connected by the conductive rubber contacts 17A and 18A. Therefore, the voltage value and the current value that can be used as a switch are limited, and the operation and the return position are held by the elastic force of the elastic rubber caps 17 and 18. Therefore, a sufficient operation force cannot be obtained and the return position cannot be obtained. There was a problem that the retention of the particles was unstable.

The present invention is to solve such a conventional problem, and provides a push-pull switch which can be used for a wide range of voltage and current, can obtain sufficient operation force, and can secure a stable return position. The purpose is to do so.

[0010]

According to the present invention, there is provided a push-pull switch in which a plurality of fixed contacts made of a metal material are implanted on an inner side wall and an upwardly projecting portion is provided on an inner bottom surface. An operation body holding a movable contact piece made of an elastic metal material on a side surface is movably housed in a case, and a lower end of a spring inserted into the spring insertion portion of the operation body in a slightly bent state is a projection of the case. The upper end is also configured to abut against the back surface of the cover that covers the opening of the case.

As a result, it is possible to obtain a push-pull switch which can be used for a wide range of voltage and current, and has a sufficient operation force and a stable return position.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, a plurality of fixed contacts made of a metal material are implanted on an inner side wall and an upwardly open insulating surface is provided on an inner bottom surface. A case made of a material, an operation body having a spring insertion portion and an operation portion protruding from the case and housed in the case so as to be vertically movable, and an elastic metal material held on a side surface of the operation body and brought into contact with and separated from fixed contacts. A movable contact piece, a cover having a hole through which the operating portion of the operating body is inserted and covering the open portion of the case, and a lower end which is inserted into the spring insertion portion of the operating body in a slightly bent state, and whose lower end is a projection of the case. The push-pull switch has a configuration in which the upper end of the portion is made of a spring that also abuts the back surface of the cover, and separates the movable contact piece made of an elastic metal material from the fixed contact made of a metal material. It can be used for a wide range of voltage and current. Sufficient operating force and stable return position are obtained because the lower end of the spring inserted into the spring insertion part of the operating body in a slightly bent state is in contact with the projection of the case and the upper end is in contact with the back surface of the cover. It has the effect of being able to.

According to a second aspect of the present invention, in the first aspect of the present invention, a plurality of fixed contacts are implanted into the case by insert molding, so that the number of parts used and the number of assembly steps can be reduced. Has an action.

According to a third aspect of the present invention, in the first or second aspect, the moderation spring having the moderation projection is held by the case and the cover, and the moderation spring is provided on the operation body, or the moderation spring is provided by the operation body. In addition to holding the spring, the moderation cam is provided on the case or the cover. The moderation spring and the moderation cam have an effect that a clear moderation feeling can be obtained when the switch is operated.

According to a fourth aspect of the present invention, in the first aspect of the present invention, a plurality of fixed contacts are implanted on a plurality of surfaces of an inner side wall of the case and a plurality of movable contacts are provided. With the configuration in which the piece is held by the operating body, it has an effect that a push-pull switch capable of connecting and disconnecting a plurality of circuits can be configured.

According to a fifth aspect of the present invention, in the first aspect of the present invention, an engaging portion is provided at a tip of the operating portion, and an operating key is engaged with the engaging portion. By attaching operation keys of various operation forms to the holding portion, there is an effect that various operation forms can be realized.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. (Embodiment 1) FIG. 1 is an exploded perspective view of a push-pull switch according to a first embodiment of the present invention, FIG. 2 is a sectional view thereof, FIG. Is a cross-sectional view when operated in the same push direction. In the figure, reference numeral 1 denotes a fixed contact 2 made of a metal material on the inner right side wall, and fixed contacts 3 and 4 made of a metal material on the inner left side wall. , A case made of an insulating material having an open top surface provided with an upwardly projecting portion 1A on the inner bottom surface, and 5 is an operating body having a spring insertion portion 5A and an operating portion 5B projecting upward to the outside of the case.

Reference numeral 6 denotes a movable contact 6A at both ends which resiliently contacts the fixed contact 2 and a movable contact 6 which elastically contacts and separates the fixed contacts 3 and 4.
B, the central portion 6C is a movable contact piece held by the holding portion 5C of the operating body 5, and 7 is the operating portion 5 of the operating body 5 at the center.
B is a cover having a hole 7A through which the upper surface of the case 1 is opened, and a cover 8 is inserted into the spring insertion portion 5A of the operating body 5 in a slightly bent state, and a lower end thereof is inserted into the spring of the operating body 5. Part 5
A coil spring is in contact with the lower surface 5D of A and the protrusion 1A of the case 1, and the upper end thereof is in contact with the upper surface 5E of the spring insertion portion 5A of the operation body 5 and the back surface 7B of the cover 7, respectively.

In the above configuration, when the operating portion 5B of the operating body 5 is pulled in the pull direction from the state of FIG. 2, the upper end of the coil spring 8 is moved with the upward movement of the operating body 5 as shown in FIG. It separates from the upper surface 5E of the operating body 5 and abuts only on the back surface 7B of the cover 7, and the lower end of the coil spring 8 is
The movable contact 6 of the movable contact piece 6 held by the operating body 5 while being compressed by the lower surface 5D of the operating body 5 away from A
A elastically slides on the fixed contact 2, and the movable contact 6 B elastically contacts the fixed contact 3.
Are electrically conducted through the movable contact piece 6 to be turned on.

When the pulling operation of the operating portion 5B in the pull direction is released, the elastic restoring force of the coil spring 8 causes the operation shown in FIG.
And the fixed contacts 2 and 3 return to their original OFF state.
Return to the state.

Conversely, when the operating portion 5B of the operating body 5 is pushed in the push direction from the state of FIG. 2, the coil spring 8 is moved in accordance with the downward movement of the operating body 5 as shown in FIG. The lower end is separated from the lower surface 5D of the operating body 5 and the projection 1A of the case 1
And the upper end of the coil spring 8 is
B and the movable contact 6 of the movable contact piece 6 held by the operating body 5 while being compressed by the upper surface 5E of the operating body 5
A elastically slides on the fixed contact 2, and the movable contact 6 B elastically contacts the fixed contact 4.
Are electrically conductive through the movable contact piece 6 to be turned on, and when the pressing operation of the operating section 5B in the push direction is released, the state returns to the state shown in FIG. 2, and the fixed contacts 2 and 4 are restored to the original state. To the OFF state.

As described above, according to the present embodiment, the movable contact piece 6 made of an elastic metal material and the fixed contact 2 made of a metal material are used.
It can be used for a wide range of voltage and current in order to make contact and separation between the case 3 and 4, and the lower end of the spring 8 inserted into the spring insertion portion 5A of the operating body 5 in a slightly bent state is Since the upper end of the protrusion 1A is also in contact with the back surface 7B of the cover 7, a sufficient operation force and a stable return position can be obtained.

Further, the operating body 5 holding the movable contact piece 6 by inserting the coil spring 8 into the spring insertion portion 5A in advance.
Is a case 1 in which fixed contacts 2, 3, and 4 are insert-molded.
And the cover is covered with the cover 7, it is possible to assemble the other components sequentially based on the case 1 and easily assemble the switch easily. .

(Embodiment 2) FIG. 5 is an exploded perspective view of a push-pull switch according to a second embodiment of the present invention, FIG. 6 is a sectional view thereof, FIG. FIG. 8 is a cross-sectional view when operating in the push direction. In FIG. 8, holding portions 1B and 7C are provided on the inner bottom surface of the case 1 and the back surface of the cover 7, and a U-shaped member having a moderation protrusion 9A therebetween. The supporting portion 9B of the moderation spring 9 is held, and the moderation projection 9A of the moderation spring 9 is provided on the side surface of the operation body 5.
Moderation cams 5F and 5G that generate moderation effects by engaging with the camshafts are provided.

In the above configuration, when the operating portion 5B of the operating body 5 is pulled in the pull direction from the state of FIG. 6, the moderating cam 5G is moved with the moderating spring as the operating body 5 moves upward as shown in FIG. After the flexure 9 is supported by the support portion 9B as a fulcrum, the flexure moder spring 9 returns to the original state by the elastic force when the moderation cam 5G exceeds the moderation protrusion 9A, thereby obtaining a moderation feeling in the operation in the pull direction. be able to.

Conversely, when the operating portion 5B of the operating body 5 is pushed in the push direction from the state shown in FIG. 6, the moderating cam 5F moves as the operating body 5 moves downward as shown in FIG. After the spring 9 is bent with the support portion 9B as a fulcrum, the detent cam 5
When F exceeds the moderation protrusion 9A, the moderation spring 9 that has been bent returns to its original state by elastic force, so that a moderation feeling in the operation in the push direction can be obtained as in the operation in the pull direction.

The operation of the spring 8 accompanying the movement of the operating body 5 in the pulling or pushing direction operation, and the fixed contacts 2 and 3 by the movable contact piece 6 held by the operating body 5
The electrical contact and separation of the elements 4 and 4 are the same as in the first embodiment.

As described above, according to the present embodiment, by providing the moderation spring 9 and the moderation cams 5F and 5G, a clear moderation feeling at the time of operating in the pull direction or the push direction can be obtained.

In the above description, the moderation springs 9 are held by the case 1 and the cover 7, and the moderation cams 5F and 5G are engaged with the operation body 5 with the moderation projections 9A of the moderation spring 9.
The same applies to the configuration in which the moderation spring 9 is held by the operating body 5 and the moderation cams 5F and 5G that engage with the moderation projections 9A of the moderation spring 9 are provided on the case 1 or the cover 7. Of course, the effect can be obtained.

(Embodiment 3) FIG. 9 is an exploded perspective view of a push-pull switch according to a third embodiment of the present invention, and FIG. 10 is a cross-sectional view when the switch is operated in the pull direction. 1 have fixed contacts 2A, 3A, 4
A has fixed contacts 2B, 3
B and 4B are implanted, respectively, and the other end of a U-shaped movable contact piece 10 having movable contacts 10A and 10B at one end is held on the right side of the operation body 5, and the left side is held on the left side. Similarly, a movable contact piece 11 having movable contacts 11A and 11B is held.

In the above configuration, the operating section 5B of the operating body 5
Is pulled in the pull direction, as shown in FIG. 10, the movable contacts 10A and 11A of the movable contact pieces 10 and 11 held by the operating body 5 become fixed contacts 2A and
When the movable contacts 10B and 11B elastically contact the fixed contacts 3A and 3B, the fixed contacts 2A and 3A and the fixed contacts 2B and 3B are electrically connected via the movable contact pieces 10 and 11, respectively. To the ON state.

When the operating section 5B is pushed in the push direction, the movable contact pieces 10 and 1 move with the downward movement of the operating body 5.
The movable contacts 10A and 11A resiliently slide on the fixed contacts 2A and 2B, and the movable contacts 10B and 11B resiliently contact the fixed contacts 4A and 4B, so that the fixed contacts 2A and 4A and the fixed contacts 2B and 4B. Are electrically conducted through the movable contact pieces 10 and 11, respectively, and are turned on.

The operation of the spring 8 associated with the movement of the operating body 5 in the pull direction or push direction operation is the same as in the first embodiment.

As described above, according to the present embodiment, a plurality of fixed contacts are implanted on a plurality of surfaces of the inner side wall of the case, and
By providing a plurality of movable contact pieces 10 and 11
A push-pull switch capable of connecting and disconnecting a plurality of circuits can be configured.

(Embodiment 4) FIG. 11 is a perspective view in which a push-pull switch and an operation key according to a fourth embodiment of the present invention are separated, and FIG. 12 is a partial sectional view when the operation key is operated in a seesaw operation. In the drawing, a protrusion-shaped engaging portion 5H is provided at the tip of the operating portion 5B of the operating body 5 of the push-pull switch.

The engaging portion 5H is disposed above the push-pull switch, and has operating surfaces 20A and 20B on its upper surface.
The operation key 20 has a guide hole 20D of a guide portion 20C provided on the lower surface of the operation surface 20B, and is swingably inserted into the operation key 20. The support portion 20E is provided on a support (not shown). It is rotatably supported.

In the above configuration, when the operation surface 20A of the operation key 20 is pressed downward, the operation key 20 rotates about the support portion 20E as shown by the dotted line in FIG. When the operation section 5B of the operation body 5 through which the section 5H is inserted is pulled upward, the push-pull switch operates in the pull direction, and when the operation surface 20B is pressed downward, the operation key 20 rotates in the opposite direction. To move the engaging portion 5 of the operating portion 5B.
H is pushed downward, and the push-pull switch operates in the push direction.

As described above, according to the present embodiment, the engaging portion 5H that engages with the separately mounted operation key 20 is connected to the operating portion 5H.
By providing the push-pull switch at the tip of B, the push-pull switch can be easily used for a seesaw operation as another operation mode.

In the above description, the case of the seesaw operation has been described. However, various operation modes such as a lever operation and a slide operation can be configured by attaching various operation keys to this engaging portion. Of course, it is possible.

[0040]

As described above, according to the present invention, it is possible to obtain a push-pull switch which can be used for a wide range of voltage and current, and can obtain a sufficient operation force and a stable return position. can get.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a push-pull switch according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is a sectional view when the pull direction operation is performed.

FIG. 4 is a sectional view when the push direction operation is performed.

FIG. 5 is an exploded perspective view of a push-pull switch according to a second embodiment of the present invention.

FIG. 6 is a sectional view of the same.

FIG. 7 is a cross-sectional view when the pull direction operation is performed.

FIG. 8 is a cross-sectional view when the push direction operation is performed.

FIG. 9 is an exploded perspective view of a push-pull switch according to a third embodiment of the present invention.

FIG. 10 is a cross-sectional view when the pull direction operation is performed.

FIG. 11 is an exploded perspective view of a push-pull switch according to a fourth embodiment of the present invention.

FIG. 12 is an explanatory diagram of the operation.

FIG. 13 is a sectional view of a conventional push-pull switch.

FIG. 14 is a cross-sectional view when the pull direction operation is performed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 1A Projection part 1B Holding part 2, 2A, 2B Fixed contact 3, 3A, 3B Fixed contact 4, 4A, 4B Fixed contact 5 Operating body 5A Spring insertion part 5B Operation part 5C Holding part 5D Spring insertion part lower surface 5E Spring insertion Top surface 5F, 5G Moderation cam 5H Engagement portion 6 Movable contact piece 6A, 6B Movable contact 6C Central portion 7 Cover 7A Hole 7B Back surface 7C Holding portion 8 Coil spring 9 Moderation spring 9A Moderation protrusion 9B Supporting portion 10 Movable contact piece 10A 10B Movable contact 11 Movable contact piece 11A, 11B Movable contact 20 Operation key 20A, 20B Operation surface 20C Guide section 20D Guide hole 20E Support section

Claims (5)

[Claims] 1. A case made of an insulating material having an open top surface having a plurality of fixed contacts made of a metal material implanted on an inner side wall and having an upwardly projecting portion provided on an inner bottom surface, and a spring insertion portion and protruding from the case. An operation body having an operation part and housed in the case so as to be vertically movable, a movable contact piece made of an elastic metal material held on a side surface of the operation body and coming into contact with and separated from the fixed contact, and an operation part of the operation body is inserted therethrough. A cover having a hole and covering an open portion of the case;
Inserted in a slightly bent state into the spring insertion part of the operating body,
A push-pull switch comprising a spring having a lower end in contact with the projection of the case and an upper end in contact with the back surface of the cover. 2. The push-pull switch according to claim 1, wherein a plurality of fixed contacts are implanted in the case by insert molding. 3. A moderation cam provided with a moderation projection by a case and a cover, and a moderation cam which engages with the moderation projection to perform a moderation action is provided on the operation body, or the moderation spring is operated by the operation body. 3. The push-pull switch according to claim 1, wherein said push-pull switch is held and said moderation cam is provided on a case or a cover. 4. The push-pull according to claim 1, wherein a plurality of fixed contacts are implanted on a plurality of surfaces of the inner side wall of the case, and a plurality of movable contact pieces are held by the operating body. switch. 5. The push-pull switch according to claim 1, wherein an engagement portion is provided at a tip of the operation portion, and an operation key is engaged with the engagement portion.