JPH08167342A - Switch unit - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the number of parts and installation space. [Structure] The electric circuit board 6 has a first set of fixed contacts 60, 6
The first and second sets of fixed contacts 62, 63 are provided so as to face each other, the rubber spring 5 is arranged on the electric circuit board, the movable contact 7 is held by the rubber spring, and the elastic force of the ring for rubberizing the movable contact makes Always connect to two sets of fixed contacts,
An actuator 4 for moving the movable contact is provided. As a result, when the actuator is operated, the movable contact will move to the second position.
The movable contact is connected to the fixed contact of the first set apart from the fixed contact of the set. A switch unit consisting of a fixed contact of the first set, a fixed contact of the second set, a movable contact, a rubber spring, and an actuator. Since a contact switch unit and two 1-pole single-throw contact switch units can be configured, the number of parts can be reduced and the installation space can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch unit in which a fixed contact and a movable contact are opposed to each other, and in particular, one set of switch units has one double pole single throw contact switch unit or one switch unit. 1 pole double throw contact switch unit,
Alternatively, the present invention relates to a switch unit that can configure two single-pole single-throw contact switch units and can reduce the number of parts and the installation space.

[0002]

2. Description of the Related Art A switch unit in which a fixed contact and a movable contact are opposed to each other is desired by switching the polarity of the circuit or the connection of the circuit by intermittently connecting the fixed contact and the movable contact. The switch unit that constitutes the electric circuit will be described. In this switch unit, in general, a pair of fixed contacts are printed in close proximity to each other on an electric circuit board made of an insulating member, and a rubber spring as an elastic holder is arranged on the electric circuit board. Has been done. The rubber spring is made of a material having elasticity and insulation such as silicon rubber, and has a flat plate portion arranged on the electric circuit board and a flat plate portion.
It is composed of a thin, hollow, truncated cone-shaped flexible portion integrally provided from a flat plate portion so as to cover the pair of fixed contacts, and a movable portion provided at the head of the flexible portion. A movable contact made of a conductive member is provided on the inner surface of the movable portion of the rubber spring so as to face the pair of fixed contacts, and an actuator as an operating body is arranged in the movable portion of the rubber spring. There is.

Next, the operation of the switch unit will be described. First, when the actuator is pushed against the elastic force of the flexible portion of the rubber spring, the pressing force of the actuator is transmitted to the flexible portion via the head of the rubber spring, and the flexible portion bends. The head is displaced and the movable contact is connected to the pair of fixed contacts. When the pushing operation of the actuator is stopped, the elastic return force of the flexible portion that is bent restores the flexible portion that is bent and the head that is displaced to the original state, and the movable contact forms a pair. Move away from fixed contacts. The switch unit includes a pair of fixed contacts arranged on an electric circuit board and a pair of fixed contacts.
One set of switch units each including one rubber spring, one movable contact, and one actuator constitutes a single-pole single-throw contact switch unit.

This switch unit is usually equipped with a plurality of sets to switch the polarities of a plurality of electric circuits or to switch the connections of a plurality of electric circuits to form a plurality of desired electric circuits. For example, actual development Sho 59-1
It is used as a switch unit of the switch device described in Japanese Patent No. 58243. This actual development Sho 59-1582
The switch device described in Japanese Patent Publication No. 43 is used as a switch device for tilting the left and right mirror surfaces of an electric remote control mirror for an automobile vertically and horizontally, and an electric circuit board is arranged in a case. A plurality of required sets of the above-mentioned switch units are mounted on the electric circuit board, and a push plate is swingably attached to this case. This push plate has a four-direction type that pushes at four points in four directions (cross direction) and a two-way type that pushes at two points in two directions (-direction). The actuator of the above-mentioned switch unit is operated.

[0005]

However, in the above-mentioned conventional switch unit, a pair of fixed contacts and a pair of fixed contacts are provided.
Since one movable contact, one rubber spring, and one actuator constitute one switch unit with one-pole single-throw contact, this switch unit with one single-pole single-throw contact Since only the circuit is opened and closed in this case, two 1-pole single-throw contact switch units are required to switch the polarity of the circuit or to switch the connection, resulting in an increase in the number of parts and a wide installation. There is a problem that space is required. For example, when the above-mentioned conventional switch unit is used as a switch device for the control switch of the above-mentioned electric remote control mirror for automobiles, there are four switch units required for switching the left and right mirrors, and the upper and lower sides of each mirror. There are 8 switch units required for tilting in the left and right directions, for a total of 12
A set is required, the total number of parts is large, and the installation space tends to be large.

An object of the present invention is to provide a switch unit capable of reducing the number of parts and reducing the installation space.

[0007]

According to the present invention, in order to solve the above problems, a first set of fixed contacts and a second set of fixed contacts are provided facing each other on an electric circuit board made of an insulating member. ,
An elastic holder is disposed on the electric circuit board, and movable contacts are movably held on the elastic holder between the first set of fixed contacts and the second set of fixed contacts, and the movable contacts are held by the elastic holder. Is always connected to the second set of fixed contacts by the elastic force of
It is characterized in that it is equipped with an operating body for performing an operation of connecting the movable contact to the fixed contact of the first set by separating the connection of the fixed contact of the second set against the elastic force of the elastic holding body.

[0008]

According to the present invention, the movable contact is always connected to the second set of fixed contacts by the elastic force of the elastic holding member, and the operating body is operated against the elastic force of the elastic holding member. Then, the movable contact and the fixed contact of the second set are separated from each other, and the movable contact is connected to the fixed contact of the first set. And
When the operation of the operating body is stopped, the elastic return force of the elastic holding body separates the connection between the movable contact and the fixed contact of the first set, and the movable contact is connected to the fixed contact of the second set. In this way, the first set of fixed contacts, the second set of fixed contacts, the movable contact,
One set of switch unit consisting of elastic holder and operation unit, one switch unit with two poles single throw contact, one switch unit with one pole double throw contact, or two switches with one pole single throw contact A switch unit can be configured, and the number of parts is reduced and a small installation space is achieved as compared with a conventional switch unit in which one set of switch units can configure only one 1-pole single-throw contact switch unit. be able to.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the switch unit of the present invention will be described below with reference to the accompanying drawings. 1 to 3, reference numeral 6 is an electric circuit board. This electric circuit board 6 is
For example, it is a printed circuit board (PCB) or the like, and is composed of an insulating plate member having a substantially square shape when viewed from above. On one surface (for example, an upper surface) and the other surface of the electric circuit board 6, a first set of fixed contacts 60, 61 and a second set of fixed contacts 62, 63 and an electric circuit, which will be described later, are printed or laid, A desired circuit is configured by connecting a movable contact 7 held by a rubber spring 5 described later and a contact 82 of a two-way switch unit 8 described later.

In FIGS. 1 to 3, reference numerals 60 and 61 designate a first set of fixed contacts. The first set of fixed contacts 60 and 61 is composed of a pair of fixed contacts made of a conductive member. For example, as shown in FIG. Printed wiring is formed on one surface of the electric circuit board 6 so as to be close to each other. The fixed contacts 60 and 61 of the first set are electrically connected to a predetermined electric circuit (not shown) printed on one surface of the electric circuit board 6.

In FIGS. 1, 2 and 4, reference numerals 62 and 63 denote a second set of fixed contacts. The second set of fixed contacts 62 and 62 is composed of a pair of fixed contacts made of a conductive member. For example, as shown in FIG.
The fixed contacts 60 and 61 of the set are installed so as to straddle and close to each other. That is, the tip ends of the fixed contacts 62 and 63 of the second set are substantially perpendicular and upward from the electric circuit board 6 so as to face the fixed contacts 60 and 61 of the first set via a rubber spring 5 described later. And the second set of fixed contacts 62 and 6 respectively.
The tip ends of the three extend substantially horizontally and closely adjacent to each other. This second set of fixed contacts 62 and 6
3, the terminal portions 620 and 630 at the tip thereof and the other surface of the electric circuit are electrically connected to a predetermined electric circuit (not shown) having a printed wiring by a solder 64 or the like. In addition, the fixed contacts 62 and 63 of the second set are shown in FIG.
As shown in FIG.
31 has a semicircular shape.

In FIGS. 1 to 4, 5 is a rubber spring as an elastic holder for holding a movable contact 7 which will be described later. The rubber spring 5 is made of a member having elasticity and insulation such as silicon rubber. As shown in FIG. 1, the rubber spring 5 includes a circular flat plate portion 50 when viewed from above, a flexible portion 51 integrally provided on one surface (upper surface) of the flat plate portion 50, and the flexible portion 51. It is composed of a columnar movable portion 52 integrally provided on the head.
The flexible portion 51 is shown in FIG. 1 (A), FIG. 2 (A) and FIG.
As shown in FIG. 5, the movable portion 52 is formed into a thin hollow circular truncated cone shape so as to cover the first set of fixed contacts 60 and 61, and the movable portion 52 is constantly moved by the elastic force of the flexible portion 51. And is in close proximity to the contact portions 621 and 631 of the proximal ends of the fixed contacts 62 and 63 of the second set. In addition, the flexible portion 51 corresponds to the flexible portion 5
By the elastic force of 2, the contact load (set load) between the movable contact 7 described later and the fixed contacts 62 and 63 of the second set is obtained, and both (the movable contact 7 described below and the fixed contact 62 of the second set are described).
And 63). The flat plate portion 50 of the rubber spring 5 is arranged on one surface of the electric circuit board 6, and the flexible portion 51 of the rubber spring 5 is arranged on the one surface of the electric circuit board 6 in a first set of fixed contacts 60 and 61. And the movable portion 52 of the rubber spring 5 further covers the fixed contact 60 of the first set.
And 61 and the contact portions 621 and 631 at the proximal ends of the fixed contacts 62 and 63 of the second set, respectively.

In FIGS. 1 to 3, 7 is a movable contact. The movable contact 7 is made of a conductive member,
A large-diameter columnar first connecting portion 71 which is connected to the fixed contacts 60 and 61 of the set to form a first circuit, and a fixed contact 62 and 63 of the second set is connected to form a second circuit. A large diameter cylindrical second connecting portion 72 and first contact portions 71 on both ends.
And a second contact portion 72 are integrally formed with a small diameter cylindrical connecting portion 70. The connecting portion 70 of the movable contact 7
Is press-fitted into a circular through hole 53 provided at the center of the movable portion 52 of the rubber spring 5, and the movable contact 7 is held by the rubber spring 5. As a result, the elastic force of the flexible portion 51 of the rubber spring 5 causes the second contact portion 72 of the movable contact 7 to constantly contact the second set of fixed contacts 62 and 63 with a predetermined contact load, and The first contact portion 71 of the movable contact 7 faces the first fixed contacts 60 and 61 in a state of being separated from each other.

In FIGS. 1 and 2, reference numeral 4 is an actuator as an operating body. The actuator 4 is made of, for example, a synthetic resin, and has an upper portion 4 having a large-diameter columnar shape.
0 and a lower operation shaft portion 41 having a small-diameter columnar shape. The lower end of the lower operation shaft portion 41 of the actuator 4 is 1
The contact portions 620 and 6 of the second pair of fixed contacts 62 and 63 of the pair.
The movable contact 7 is in contact with the second contact portion 72 of the movable contact 7 by being inserted through the gap 30.

The switch unit of the present invention in this embodiment has the above-mentioned structure, and its operation will be described below. First, in the normal state, as shown in FIG.
As shown in FIG. 2A and FIG. 2A, the elastic force of the flexible portion 51 of the rubber spring 5 causes the second contact portion 72 of the movable contact 7 to move to the second set of fixed contacts 62 and 63 (A terminal and B
The first contact portion 71 of the movable contact 7 is connected to the fixed contact 60 and 61 (C contact and D contact) of the first set.
The state of being separated from the contact point, that is, the state as shown in the electric circuit diagram of FIG.

In this state, the actuator 4 is resisted against the elastic force of the flexible portion 51 of the rubber spring 5 and the actuator shown in FIG.
Push in the direction of the arrow in (B) and FIG. 2 (B). Then, the actuator 4 is lowered, the movable contact 7 is lowered against the elastic force of the flexible portion 51 of the rubber spring 5, and the second contact portion 72 of the movable contact 7 is moved to the second set of fixed contacts 62 and After being separated from the connection with 63, the first contact portion 71 of the movable contact 7 is then connected to the first set of fixed contacts 60 and 61, and the state shown in the electric circuit diagram of FIG. 5B is obtained. .

When the pushing of the actuator 4 is stopped, the movable contact 7 is raised by the elastic restoring force of the flexible portion 51 of the rubber spring 5, and the first contact portion 71 of the movable contact 7 is raised.
Away from the connection with the first set of fixed contacts 60 and 61,
Then, the second contact portion 72 of the movable contact 7 is connected to the second set of fixed contacts 62 and 63, and the state shown in the electric circuit diagram of FIG. 5A is obtained. Further, the actuator 4 rises as the movable contact 7 rises, and the rubber spring 5
And the actuator 4 returns to the original state shown in FIG. 1 (A) and FIG. 2 (A).

As described above, the switch unit of the present invention in this embodiment has the pair of fixed contacts 60, 6 of the first set.
One and a pair of second fixed contacts 62, 63, one movable contact 7, and one rubber spring 7, and 1
Since one set of switch units composed of one actuator 4 can constitute one switch unit of two-pole single-throw contact as shown in FIGS. 5 (A) and (B),
A conventional switch unit in which a pair of switch units each consisting of a pair of fixed contacts, one movable contact, one rubber spring, and one actuator constitutes one single-pole single-throw contact switch unit. Compared with the above, it is possible to reduce the number of parts and a small installation space.

As described above, the switch unit of the present invention in this embodiment can constitute a switch unit having one double pole single throw contact as shown in FIGS. 5 (A) and 5 (B). Further, as shown in FIGS. 6A and 6B, one contact 61 (D contact) of the first set of fixed contacts and one contact 63 (B terminal) of the second set of fixed contacts are common. Then (or the other contact 60 (C contact) of the first set of fixed contacts and the other contact 62 (A terminal) of the second set of fixed contacts are made common) A contact switch unit can be configured. Furthermore, FIG.
7A and 7B are modified examples of a switch unit having one double-pole single-throw contact as shown in FIGS. 7A and 7B, in which movable contacts 7 (71 and 72) are interlocked as shown in FIGS. 7A and 7B. It is also possible to configure a switch unit having two 1-pole single throw contacts.

FIGS. 8A to 8E are partial cross-sectional views showing modified examples of the movable contact. In this movable contact, the first contact portion and the second contact portion are separate members. That is, the movable contact 700 shown in (A) is held by the movable portion 52 of the rubber spring 5 by fitting the first contact portion 710 and the second contact portion 720, which are separate bodies, into the spacer 730. The movable contact 701 shown in (B) is a separate first
The contact portion 711 and the second contact portion 721 are fitted to each other and held by the movable portion 52 of the rubber spring 5. (C)
In the movable contact 702 shown in FIG. 2, the first contact portion 712 and the second contact portion 722 which are separate bodies are press-fitted and held in the movable portion 52 of the rubber spring 5, respectively. Movable contact 70 shown in (D)
3, the first contact portion 713, the second contact portion 723, and the spacer 733, which are separate bodies, are fitted to each other and held by the movable portion 52 of the rubber spring 5. In the movable contact 704 shown in (E), separate first contact portion 714 and second contact portion 724 are bonded and held to the movable portion 52 of the rubber spring 5. The means for holding the movable contact on the movable portion 52 is not limited to the above.

In the above embodiment, the first set of fixed contacts 60 and 61 and the second set of fixed contacts 62 and 63 are
Although one pair is provided for each set of switch units, the switch unit of the present invention has a first set fixed contact and a second set fixed contact for one set switch unit. Plural pairs may be provided for each.

9 to 13 show a switch unit according to the present invention of the above-described embodiment, which is a four-way switch device, for example, a control switch for tilting the left and right mirror surfaces of an electric remote control mirror for an automobile vertically and horizontally. 4 shows an example of use in the four-way switch device. Hereinafter, this example will be described. In the figure, 1 and 2 are holders as an upper case and a lower case that form a case of the switch device. The upper case 1 and the holder 2 are made of, for example, an opaque synthetic resin (made of ABS resin). The switch unit of the present invention described above is built in the upper case 1 and the holder 2. That is, the electric circuit board 6 is horizontally arranged in the upper case 1 and the holder 2, and four sets of the above-described switch units of the present invention are arranged on the electric circuit board 6 on a diagonal line of the upper case 1 and the holder 2. The upper portion 40 of the actuator 4 of the switch unit of the present invention is guided by the guide 10 provided in the upper case 1 so as to be able to move up and down. In addition, a terminal 12 that is electrically connected to the battery of the automobile is provided in the lower opening of the holder 2.

In the figure, 3 is a push plate. The push plate 3 is made of, for example, an opaque synthetic resin (made of ABS resin), and is swingably attached to the upper opening of the upper case 1 through the above-described four sets of switch units of the present invention. . For example, triangular (or arrow-shaped) marks 30 are provided at four locations on the upper surface of the push plate 3 in four directions, the X direction and the Y direction. The push plate 3 is configured so that it can be pushed at four positions in the four directions of the X direction and the Y direction, that is, near the mark 30. The upper end of an upper operating shaft portion 42 which is integrally projected from the center of the upper surface of the upper portion 40 of the actuator 4 of the above-described switch unit of the present invention is in contact with the diagonal line of the lower surface of the push plate 3.

This four-way switch device is constructed as described above, and its operation will be described below. First, in the normal state (normal state), the four sets of switch units and the push plate 3 according to the present invention are as shown in FIG.
(A) and FIG. 6 (A) and FIG. 7 (A) and FIG. 9 and FIG.
The state is 0. Next, for example, as shown in FIG. 11, the push operation point on the right side of the push plate 3 is
A push operation is performed in the direction of the arrow in FIG. 11 against the elastic force of the flexible portion 51 of the rubber spring 5 of the switch unit of the present invention. Then, the actuator 4 is pushed by the push operation force of the push plate 3, the movable contact 7 is lowered against the elastic force of the flexible portion 51 of the rubber spring 5, and the second contact portion 72 of the movable contact 7 is lowered. Away from the connection with the second set of fixed contacts 62 and 63, and then
The first contact portion 71 of the movable contact 7 is the fixed contact 6 of the first set.
0 and 61 are connected, and the state shown in the electric circuit diagrams of FIGS. 5B, 6B and 7B is obtained.

When the push operation of the push plate 3 is stopped, the movable contact 7 rises due to the elastic restoring force of the flexible portion 51 of the rubber spring 5, and the first contact portion 71 of the movable contact 7 forms the first set. Apart from the connection with the fixed contacts 60 and 61, the second contact portion 72 of the movable contact 7 is then connected to the second set of fixed contacts 62 and 63, which is shown in FIGS. 5 (A) and 6 (A) and The state shown in the electric circuit diagram of FIG. Further, the actuator 4 rises as the movable contact 7 rises, and the push plate 3 and the switch unit of the present invention return to the original state shown in FIGS. 9 and 10.

Further, even if the push plate 3 is pushed at other push operation points, for example, on the left side, the upper side and the lower side, the same switch operation as described above can be obtained. This 4
The direction switch device is used, for example, in a four-way switch device of the control switches for tilting the left and right mirror surfaces of an electric remote control mirror for an automobile in up, down, left and right directions. That is, a drive motor for tilting the left or right mirror surface in the vertical direction, a drive motor for tilting the left mirror surface in the horizontal direction,
Four-way switch device for rotating a desired motor out of the drive motor for tilting the right mirror surface in the vertical direction and the drive motor for tilting the right mirror surface in the horizontal direction Is used for.

As described above, when the switch unit of the present invention is used in the above-mentioned four-way switch device, only four sets of switch units are required, so that the conventional one-pole single-throw contact switch unit is constructed. Compared with a switch unit (this conventional switch unit requires 8 sets of switch units), the number of parts can be reduced by almost half, and the installation space can be reduced by almost half (on the diagonal line of the four-way switch device). 4 places).

In FIGS. 9 to 12, reference numeral 8 is a two-way switch device incorporated in the four-way switch device composed of the above-described switch unit of the present invention. This 2
The direction switch device 8 includes a switching knob 80 and a slider 81.
A contact 82 and a moderation imparting mechanism 83. An intermediate portion of the switching knob 80 is attached to the edge of the upper surface opening of the upper case 1 so as to be swingable in the X direction, and an upper portion of the switching knob 80 is provided in the center of the push plate 3. It projects outward from the portion 31. The slider 81 and the contact 82 are arranged on the electric circuit board 6 so as to be slidable in the X direction, and the lower end of the switching knob 80 is engaged with the slider 81. The moderation imparting mechanism 83 includes a plate member attached to the upper case 1 and the holder 2, a ball attached to the switching knob 80, and a compression coil spring. It is pressed into contact with the groove and both inclined surfaces.

The two-way switch device 8 is normally in the normal state (neutral state) as shown in FIGS. 9 and 12. In this state, when the upper part of the switching knob 80 is tilted in the arrow direction (left direction) in FIG. 9, for example, the ball below the switching knob 80 moves in the V direction of the plate member in the arrow direction (right direction) in FIG. It moves over the inclined surface on the right side from the groove, and accordingly, the slider 81 and the contact 8
2 slides in the direction of the arrow in FIG.
The movable contact of the above electrically contacts the fixed contact of the electric circuit board 6 to form a desired electric circuit. When the upper portion of the switching knob 80 is tilted in the direction opposite to the arrow in FIG. 9 (rightward), the ball moves in the direction opposite to the arrow in FIG. 12 (leftward).
Further, the slider 81 and the contact 82 are returned to the original position of the V-shaped groove from the inclined surface on the right side of the plate member, and the slider 81 and the contact 82 slide in the direction opposite to the arrow in FIG. Furthermore, when the switching knob 80 in the normal state is tilted in the direction opposite to the arrow in FIG. 9 (rightward), the slider 81 and the contact 82 slide in the direction opposite to the arrow in FIG. An electric circuit is constructed.

A control for tilting the left and right mirror surfaces of an electric remote control mirror for an automobile in the vertical and horizontal directions by the above-mentioned two-way switch device 8 and the above-described four-way switch device consisting of four sets of switch units of the present invention. The switch is configured.

FIG. 13 is an electric circuit diagram of a control switch for tilting the left and right mirror surfaces of the above-mentioned electric remote control mirror for automobiles in the vertical and horizontal directions. In the figure, the same reference numerals as those in FIGS. 1 to 12 indicate the same parts. In the figure, SW1, SW2, SW3, and SW4 are the above-mentioned four sets of switch units of the present invention. M1, M2, M
3, M4 is the first motor, the second motor, the third motor, the fourth
It is a motor. The first motor M1 tilts the mirror surface LM of the left mirror assembly of the electric remote control mirror for automobiles in the left-right direction. The second motor M2 tilts the mirror surface LM of the left mirror assembly of the electric remote control mirror for automobiles in the vertical direction. The third motor M3 tilts the mirror surface RM of the mirror assembly on the right side of the electric remote control mirror for automobiles in the left-right direction. The fourth motor M4 tilts the mirror surface RM of the right mirror assembly of the electric remote control mirror for automobiles in the vertical direction.

When the switching knob 80 of the two-way switch device 8 is switched to the left side and the left side of the push plate 3 is pushed, SW1 and SW2 are actuated and the first motor M1 is normally rotated to the left side mirror. The mirror surface LM of the assembly tilts to the left. When the right side of the push plate 3 is pushed, SW3 and SW4 are actuated, the first motor M1 is rotated in reverse, and the mirror surface LM of the left side mirror assembly is tilted to the right. further,
When the upper side of the push plate 3 is pushed, the SW
1 and SW3 operate, the second motor M2 rotates in the forward direction, and the mirror surface LM of the left mirror assembly tilts upward. Further, when the lower side of the push plate 3 is pushed, SW2 and SW4 are actuated, the second motor M2 is reversely rotated, and the mirror surface LM of the left side mirror assembly is tilted downward. In addition, the two-way switch device 8
By switching the switching knob 80 of the right to the right side and pushing the left, right, up, and down four positions of the push plate 3,
As mentioned above, the mirror surface R of the right mirror assembly
M tilts left and right and up and down.

14 to 16 show an example in which the switch unit of the present invention of the above-described embodiment is used in a two-way switch device. The two-way switch device will be described below. In the drawing, the same reference numerals as those in FIGS. 1 to 13 denote the same components. Upper case 100 and holder 20 of this example
0 and the push plate 300 have a rectangular shape when seen from a plane. This push plate 300 is the upper case 1
00 is attached to the opening of the upper surface of shaft 00 by a shaft 301 so as to be swingable in two directions. This two-way switch device operates similarly to the above-described four-way switch.

In the switch unit of the present invention used in the above-mentioned four-way switch device and two-way switch device, the rubber spring 5 is provided for each switch unit.
The plurality of rubber springs 5 may be combined into one piece or an arbitrary number by arranging the flat plate portions 50 in series.

[0035]

As is apparent from the above, the switch unit of the present invention can reduce the number of parts and the installation space.

[Brief description of drawings]

FIG. 1 shows an embodiment of a switch unit of the present invention,
(A) is a partial sectional perspective view of a normal state, and (B) is a partial sectional perspective view of an operating state.

2A is a sectional perspective view of a normal state, and FIG. 2B is a sectional perspective view of an operating state.

FIG. 3 is a partial cross-sectional perspective view of an electric circuit board, a rubber spring, and a movable contact.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 shows a two-pole single-throw switch unit,
(A) is an electric circuit diagram in a normal state, and (B) is an electric circuit diagram in an operating state.

FIG. 6 shows a single-pole double-throw switch unit,
(A) is an electric circuit diagram in a normal state, and (B) is an electric circuit diagram in an operating state.

FIG. 7 shows two single pole single throw switch units,
(A) is an electric circuit diagram in a normal state, and (B) is an electric circuit diagram in an operating state.

8A to 8E are partial cross-sectional views showing modified examples of the movable contact.

FIG. 9 is a plan view of an example in which the switch unit of the present invention is used in a four-way switch device.

FIG. 10 is a sectional view taken along line XX in FIG. 9;

FIG. 11 is a cross-sectional view when a push operation is performed on, for example, a “right” portion of the push plate in FIG.

12 is a sectional view taken along line XII-XII in FIG.

FIG. 13 is an electric circuit diagram of the control switch shown in FIGS. 9 to 12 in which a four-way switch device and a two-way switch device using the switch unit of the present invention are combined.

FIG. 14 is a plan view of an example in which the switch unit of the present invention is used in a two-way switch device.

15 is a sectional view taken along line XV-XV in FIG.

FIG. 16 is a cross-sectional view when a push operation is performed on, for example, a “right” portion of the push plate in FIG.

[Explanation of symbols]

1 and 100 ... Upper case, 10 ... Guide part, 2 and 2
00 ... Holder (lower case), 3 and 300 ... Push plate, 4 ... Actuator, 40 ... Upper part, 41 ... Lower operating shaft part, 42 ... Upper operating shaft part, 5 ... Rubber spring,
50 ... Flat plate part, 51 ... Flexible part, 52 ... Movable part, 6 ... Electric circuit board, 60 and 61 ... First set fixed contact, 62 and 63 ... Second set fixed contact, 7 and 700 and 701 and 702 and 703 and 704 ... Movable contact, 70 ... Connection part, 71 and 710 and 711 and 712 and 713 and 714 ... First contact part, 72 and 720 and 721 and 722 and 723 and 724 ... Second contact part, 730 and 731 and 733 ... Spacers, 8 ... Two-way switch device.

Claims (10)

[Claims] 1. An electric circuit board made of an insulating member, a first set of fixed contacts wired on the electric circuit board, and installed on the electric circuit board so as to face the first set of fixed contacts. And a movable contact that is connected to the first set of fixed contacts to form a first circuit and that is connected to the second set of fixed contacts to form a second circuit. Elastic holding for movably holding the movable contact between the fixed contact of the first set and the fixed contact of the second set and constantly connecting the movable contact to the fixed contact of the second set by elastic force. A body, and an operating body for performing an operation of connecting the movable contact to the fixed contact of the first set by separating the movable contact from the fixed contact of the second set against the elastic force of the elastic holding body. A switch unit characterized by that. 2. The switch unit according to claim 1, wherein the fixed contacts of the first set are composed of a pair of fixed contacts which are closely arranged on the electric circuit board. . 3. The switch unit according to claim 1, wherein the fixed contacts of the first set are composed of a plurality of pairs of fixed contacts which are closely arranged on the electric circuit board. . 4. The fixed contacts of the second set are composed of a pair of fixed contacts which are installed from the electric circuit board to the fixed contacts of the first set so as to straddle and are close to each other. The switch unit according to claim 1. 5. The fixed contacts of the second set are composed of a plurality of pairs of fixed contacts that are installed from the electric circuit board to the fixed contacts of the first set so as to straddle them and closely. The switch unit according to claim 1. 6. The movable contact comprises a first connecting portion which is connected to the fixed contacts of the first set to form a first circuit, and the second contact.
The second connecting portion that is connected to the set of fixed contacts to form a second circuit is integrally configured.
Alternatively, the switch unit according to 2 or 3 or 4 or 5. 7. The movable contact comprises a first connecting portion that is connected to the first set of fixed contacts to form a first circuit, and the second contact portion.
The second connecting portion that is connected to the fixed contact of the pair to form a second circuit is separately configured.
Alternatively, the switch unit according to 2 or 3 or 4 or 5. 8. The elastic holder is made of a member having elasticity and insulation properties, and is integrally formed from the flat plate portion so as to cover the flat plate portion arranged on the electric circuit board and the fixed contact of the first set. And a movable part provided on the head of the flexible part and provided with the movable contact. Claim 1 or 2 or 3 or 4 or 5 or 6 or 7
Switch unit described in. 9. The operating body comprises a push plate that is pushed at four locations in four directions; and a push operation of the push plate that resists the elastic force of the elastic holding body to move the movable contact to the second set. 9. An actuator that separates the connection with a fixed contact and connects the fixed contact to the first set of fixed contacts, and the actuator according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8. Switch unit. 10. An operating body comprises: a push plate that is pushed at two locations in two directions; and a push operation of the push plate that resists the elastic force of the elastic holding body to move the movable contact to the second set. 9. An actuator that separates the connection with a fixed contact and connects the fixed contact to the first set of fixed contacts, and the actuator according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8. Switch unit.