JPH10199372A - Switch device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accomplish the increasing of contacts when it is made possible to increase the numbers of common fixed contacts and fixed contacts connected to the common contacts gradually, without using a diode. SOLUTION: The first fixed contact group 22 having the first common fixed contact B1, and the first and the third fixed contacts E1 and E3, is provided to the first base plate 20. The second fixed contact group 23 having the second fixed contact B2, and the second and the fourth fixed contacts E2 and E4, is provided to the second base plate 21. The first common fixed contact B1 and the second common fixed contact B2 are connected. Depending on the operation of a lever, the first and the second movable contact elements 26 and 28 are moved in the directions of the arrow C and the arrow D synchronizing each other. Every time when the movable contact elements 26 and 28 move in the direction of the arrow C and the arrow D, the number of the common fixed contacts B1 and B2, and the fixed contacts E1 to E4 is increased gradually.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch device having a structure in which the number of common fixed contacts and the number of fixed contacts connected thereto are sequentially increased.

[0002]

FIG. 7 shows a connection relationship of a four-stage continuous connection circuit. In the first operating state I, the common fixed contact B and the first fixed contact E1
In the second operating state II, the common fixed contact B
And the first and second fixed contacts E1 and E2 are connected respectively, and in the third operating state III, the common fixed contact B
Are connected to the first to third fixed contacts E1 to E3, respectively, and in the fourth operating state IV, the common fixed contact B
And the first to fourth fixed contacts E1 to E4 are respectively connected.

Conventionally, as a configuration in which a switch device having such a connection relation is established in a space as small as possible, there is a configuration as shown in FIG. 8, for example. This has the following configuration.

A fixed contact group 2 having a common fixed contact B and first to fourth fixed contacts E1 to E4 is provided on the left side of the surface of the substrate 1. This fixed contact group 2
A common fixed contact B and first and third fixed contacts E1 and E
3 and the second and fourth fixed contacts E2 and E4 are arranged in three rows along the direction of arrow A, which is the direction in which the movable contact 3 moves. The movable contact 3 has three contact portions 3a, 3b, and 3c corresponding to the three rows of fixed contacts.
It is adapted to be moved between the FF position and the first to fourth operating positions I to IV.

[0005] On the back side of the right side of the substrate 1, between the first fixed contact E1 and the second fixed contact E2 and between the second fixed contact E2 and the third fixed contact E3. Are diodes 4a, 4a of the polarity shown in FIG.
b is connected.

In the above configuration, the movable contact 3 is turned off.
When moved from the position to the first operating position I, the contact 3
a, 3b come into contact with the common fixed contact B and the first fixed contact E1 to connect them (see the first operation state I in FIG. 9).

When the movable contact 3 is moved to the second operating position II, the contact portions 3a and 3c come into contact with the common fixed contact B and the second fixed contact E2 to connect them. (See second operating state II in FIG. 9). At this time, since the first fixed contact E1 and the second fixed contact E2 are connected by the diode 4a, as a result, the common fixed contact B and the first and second fixed contacts E1 and E2 are obtained. Are connected, which is the same as the second operation state II in FIG.

The movable contact 3 is moved to the third operating position III.
Then, the contact portions 3a, 3b come into contact with the common fixed contact B and the third fixed contact E3 to connect them (see the third operating state III in FIG. 9). At this time, between the first fixed contact E1 and the second fixed contact E2,
Since the second fixed contact E2 and the third fixed contact E3 are connected by the diodes 4a and 4b,
As a result, the common fixed contact B and the first to third fixed contacts E
1 to E3 are connected, which is the same as the third operation state III in FIG.

Then, the movable contact 3 is moved to the fourth operating position IV.
9, the contact portions 3a, 3b, 3c come into contact with the common fixed contact B and the third and fourth fixed contacts E3 and E4 to establish a connection therebetween (FIG. 9). 4 operation state IV). Also at this time, the diodes 4a and 4b are connected between the first fixed contact E1 and the second fixed contact E2 and between the second fixed contact E2 and the third fixed contact E3. And, consequently, a common fixed contact B,
The first to fourth fixed contacts E1 to E4 are in a connected state, which is the same as the fourth operation state IV in FIG.

However, the switch device having the above configuration requires two diodes 4a and 4b, and these diodes 4a and 4b need to be provided on the substrate 1 separately from the fixed contact group 2.

The present invention has been made in view of the above circumstances, and an object of the present invention is to use a diode in a device capable of sequentially increasing the number of common fixed contacts and the number of fixed contacts connected thereto. It is an object of the present invention to provide a switch device that can be achieved without using the switch device.

[0012]

In order to achieve the above object, the invention according to claim 1 comprises a common fixed contact and a plurality of fixed contacts in which the connection order is set with the common fixed contact. Are provided corresponding to the first and second fixed contact groups connected to each other, one operating member operated in a plurality of stages, and the first and second fixed contact groups, respectively. As a result of being moved in a predetermined direction in synchronization with the operation, the corresponding common fixed contact becomes the corresponding fixed contact,
First and second sequentially connected according to a set connection order
The first and second fixed contact groups and the first and second movable contacts are provided each time the first and second movable contacts move in a predetermined direction. The feature is that the total number of fixed contacts connected to the common fixed contact is sequentially increased.

In the above configuration, when the first and second movable contacts are moved based on the operation of the operating member, the first movable contact is moved along with the movement to the common fixed contact in the first fixed contact group. Are sequentially connected to the corresponding fixed contacts according to the set connection order, and the second movable contact is configured to connect the common fixed contact in the second fixed contact group to the corresponding fixed contact according to the set connection order. It will be connected sequentially. At this time, each time the first and second movable contacts are moved, the total number of fixed contacts connected to the common fixed contact sequentially increases.

According to the above means, the first and second fixed contact groups and the first and second movable contacts sequentially increase the number of common fixed contacts and the number of fixed contacts connected thereto. So no diode is required. Further, since the fixed contact group is divided into the first fixed contact group and the second fixed contact group, there is an advantage that it is not necessary to secure a large space at one place.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an exhaust brake switch of an automobile will be described below with reference to FIGS. First, in FIG. 3, a lever 12 constituting an operation member is provided on a switch case 11 so as to be rotatable around a shaft portion 13 in a direction indicated by an arrow B in FIG. In this case, the lever 12 is configured to be operated in five stages between the OFF position and the first to fourth operating positions I to IV, and is provided between the lever 12 and the switch case 11. It is held at each position by a moderation mechanism (not shown). The first and second levers are provided on the lever 12.
Arm portions 14 and 15 are provided so as to rotate integrally.

On the upper surface side of the switch case 11, first and second arc-shaped insertion holes 16 and 17 are formed at portions corresponding to the distal ends of the first and second arm portions 14 and 15, respectively. And the first and second insertion holes 16 and 17
, The distal ends of the first and second arms 14 and 15 are movably inserted. Further, the switch case 11 is positioned below the first and second insertion holes 16 and 17, and extends in the left-right direction as shown in FIGS. 4 and 5.
And second contact holder accommodating portions 18 and 19 are provided.

As shown in FIGS. 1 and 2, a first substrate 20 and a second substrate 21 are provided on the back side of the switch case 11.
And are arranged in a superimposed state. In this case, the length of the upper second substrate 21 in the longitudinal direction is set shorter than that of the lower first substrate 20, and the upper second substrate 21 is moved downward in FIGS. 1 and 2.

First substrate 2 projecting from second substrate 21
0, the first contact holder accommodating portion 1
8, the first common fixed contact B1, the first fixed contact E1, and the third common fixed contact B1, as shown in FIG.
And a first fixed contact group 22 having the fixed contact E3. The first fixed contact group 22 includes a first common fixed contact B1 and first and third fixed contacts E1 and E3.
Are arranged in two rows along the left-right direction in FIG.

On the upper surface side of the second substrate 21,
A second fixed contact group 23 having a second common fixed contact B2, a second fixed contact E2, and a fourth fixed contact E4, located at a position corresponding to the second contact holder accommodating portion 19. Is provided. This second fixed contact group 23
Also, the second common fixed contact B2 and the second and fourth fixed contacts E2 and E4 are arranged in two rows in the left-right direction in FIG.

Here, the first common fixed contact B1 and the second common fixed contact B2 are connected to a connection line 24 (FIG. 6) on the circuit.
Reference). Other first to fourth
The fixed contacts E1 to E4 are independent of each other. 1 and 2 of the first substrate 20 and the second substrate 21.
On the middle and lower sides, connector portions 25a for connecting to the outside are provided.
25b are provided.

Then, the first contact holder accommodating portion 1
As shown in FIG. 4, a first contact holder 27 having a first movable contact 26 is provided in the inside 8 so as to be movable in the left-right direction. Also, as shown in FIG. 5, the second movable contact 28
Is provided movably in the left-right direction. As shown in FIG. 1, the first movable contact 26 has three contact portions 26a, 26b, 26c.
Are arranged in a triangular arrangement, and the second movable contact 2
8 also has three contact portions 28a, 28b, 28c in a triangular arrangement.

A linear guide groove 30 extending in a direction intersecting with the first insertion hole 16 is formed in the upper surface of the first contact holder 27, and the first arm portion 14 is formed in the guide groove 30. Is movably inserted. Also, on the upper surface of the second contact holder 29,
A linear guide groove 31 extending in a direction intersecting with the second insertion hole 17 is formed, and the tip of the second arm 15 is movably inserted into the guide groove 31.

In this case, when the lever 12 is turned in the direction of arrow B, the first contact holder 27 is moved in the direction of arrow C via the first arm 14 and is synchronized with this. , The second through the second arm 15
The contact holder 29 moves in the direction indicated by the arrow. Conversely, when the lever 12 is turned in the direction opposite to the arrow B, the first contact holder 27 moves in the direction opposite to the arrow C via the first arm portion 14, and In synchronization with this, the second contact holder 29 moves via the second arm 15 in the direction opposite to the arrow d.

Next, the operation of the above configuration will be described with reference to FIG. 6 showing the connection relation in each state. First, lever 1
3 is in the OFF position shown in FIG. 3, the first contact holder 27 is located at a position shifted to the right in FIG. 3, and the second contact holder 29 is located in FIG.
It is located at the position shifted to the middle left. In this state, the first movable contact 26 and the second movable contact 28 are respectively located at the OFF positions indicated by solid lines in FIG.

When the first movable contact 26 is in the OFF position, the contact portion 26b contacts the first fixed contact E1, and when the second movable contact 28 is in the OFF position. , The contact portion 28b of the second fixed contact E2
, But not with the first and second common fixed contacts B1 and B2. In this state, both are O
It is in the FF state.

When the lever 12 in the OFF position is operated to the first operating position I, the first
As the contact holder 27 moves in the direction of arrow C, the first movable contact 26 reaches the first operating position I, and the second contact holder 29 moves through the second arm 15. With the movement in the direction of arrow d, the second
Also reach the first operating position I.

When the first movable contact 26 reaches the first operating position I, the contact portions 26a,
26c is a first common fixed contact B1 and a first fixed contact E1
And the first common fixed contact B1 and the first fixed contact E1 are connected. On the other hand, even if the second movable contact 28 reaches the first operating position I, the contact portion 28
The state does not change from the OFF position while b remains in contact with the second fixed contact E2. Accordingly, in this state, the first common fixed contact B1 and the first fixed contact E1 are connected (see the first operation state I in FIG. 6), and FIG.
Is the same as the first operation state I.

Similarly, the lever 12 is moved to the second operating position.
When operated to II, the first movable contact 26 and the second movable contact 28 synchronously reach the second operating position II. Of these, even when the first movable contact 26 reaches the second operating position II, the contact portions 26a and 26c are connected to the first common fixed contact B1.
And the first fixed contact E1 remain in contact with the first fixed contact E1, and the state is not different from that at the time of the first operating position I. On the other hand, when the second movable contact 28 reaches the second operating position II, the contact portions 28a and 28c thereof contact the second common fixed contact B2 and the second fixed contact E2, and Are connected to the common fixed contact B2 and the second fixed contact E2 (see the second operation state II in FIG. 6).

At this time, the first common fixed contact B1 and the second
Is connected to the common fixed contact B2 by the connection line 24, and as a result, the first and second common fixed contacts B1, B
7 and the first and second fixed contacts E1 and E2 are in contact with each other, and are in the same state as the second operation state II in FIG.

Similarly, the lever 12 is moved to the third operating position.
When the operation is moved to the position III, the first movable contact 26 and the second movable contact 28 synchronously reach the third operating position III.
Of these, the first movable contact 26 is in the third operating position III.
To reach the contact portions 26a, 26b, 2
6c contacts the first common fixed contact B1 and the first and third fixed contacts E1 and E3.
And the first and third fixed contacts E1 and E3 are connected (see the third operation state III in FIG. 6). On the other hand, even if the second movable contact 28 reaches the third operating position III,
With the contact portions 28a and 28c kept in contact with the second common fixed contact B2 and the second fixed contact E2, the second operating position II
The state is the same as at the time.

In this state, since the first common fixed contact B1 and the second common fixed contact B2 are connected by the connection line 24, as a result, the first and second common fixed contacts B1 are connected.
7, B2 and the first to third fixed contacts E1 to E3 are brought into contact with each other, which is the same as the third operation state III in FIG.

Similarly, the lever 12 is moved to the fourth operating position.
When operated to the IV, the first movable contact 26 and the second movable contact 28 synchronously reach the fourth operating position IV. Of these, even when the first movable contact 26 reaches the fourth operating position IV, the contact portions 26a, 26b, 26c are connected to the first common fixed contact B1 and the first and third fixed contacts E1 and E3. It remains in contact and remains the same as in the third operating position III. On the other hand, when the second movable contact 28 reaches the fourth operating position IV, the contact portions 28a, 28
b and 28c contact the second common fixed contact B2 and the second and fourth fixed contacts E2 and E4, and the second common fixed contact B2 is connected to the second and fourth fixed contacts E2 and E4. (See the fourth operation state IV in FIG. 6).

In this state, since the first common fixed contact B1 and the second common fixed contact B2 are connected by the connection line 24, as a result, the first and second common fixed contacts B
1 and B2 and the first to fourth fixed contacts E1 to E4 are in contact with each other, which is the same as the fourth operation state IV in FIG.

According to the above-described embodiment, the first and second fixed contact groups 22 and 23 and the first and second movable contacts 2
6 and 28, the first and second common fixed contacts B
Since the number of the fixed contacts 1 and B2 and the number of the fixed contacts E1 to E4 connected thereto can be sequentially increased, the diode which is conventionally required is not required.

Further, since the fixed contact group is divided into the first and second fixed contact groups 22 and 23, it is not necessary to secure a large space at one place, and as in the present embodiment. The first and second fixed contact groups 22
And 23 can be divided into the first and second substrates 20 and 21.

Furthermore, according to the present embodiment, the first fixed contact group 22 includes the first common fixed contact B1 and the two fixed contacts E1 and E3 corresponding to the first common fixed contact B1. 26
Are arranged in two rows along the moving direction, and the first movable contact 26 contacts the first common fixed contact B1 and the two fixed contacts E1 and E3 of the first fixed contact group 22. And the second fixed contact group 23 and the second movable contact 28 are also connected to the first fixed contact group 22 and the first movable contact 26. With a similar configuration, the fixed contact group and the movable contact can be divided into two sets, but the required space can be minimized.

Incidentally, when the fixed contact group is divided into two groups, the common fixed contact and the two fixed contacts may be arranged in three rows along the moving direction of the movable contact.
In this case, the space required in the direction in which the three rows are arranged becomes large. On the other hand, in the case of the present embodiment, as described above, by providing two rows, the required space can be minimized.

Also, since the first and second fixed contact groups 22 and 23 are provided on separate substrates 20 and 21, the first and second fixed contact groups 22 and 23 can be more freely provided. There is an advantage that it can be arranged.

The present invention is not limited to the embodiment described above, but can be modified or expanded as follows. The number of fixed contacts other than the common fixed contacts B1 and B2 in each of the fixed contact groups 22 and 23 may be three or more. The moving directions of the first movable contact 26 and the second movable contact 28 may be the same direction.

Each time the first and second movable contacts 26 and 28 move, the number of fixed contacts connected to the common fixed contacts B1 and B2 is changed from the first fixed contact group 22 side to the second fixed contact. The present invention is not limited to the configuration in which the number of contacts increases alternately with the contact group 23 side, but may be configured such that one side continuously increases and then the other side continuously increases.

[0041]

According to the first aspect of the present invention, the first and the second are provided.
By using the fixed contact group and the first and second movable contacts, the number of common fixed contacts and the number of fixed contacts connected thereto can be sequentially increased, so that no diode is required.
Further, since the fixed contact group is divided into the first fixed contact group and the second fixed contact group, there is an advantage that it is not necessary to secure a large space at one place.

According to the second aspect of the present invention, the required space can be minimized while the fixed contact group and the movable contact are divided into two sets.

According to the third aspect of the present invention, the first and second fixed contact groups are provided on separate substrates, so that the fixed contact groups can be arranged more freely.

[Brief description of the drawings]

FIG. 1 is a plan view of a substrate portion showing one embodiment of the present invention.

FIG. 2 is a longitudinal side view of a substrate.

FIG. 3 is a plan view of the switch device.

FIG. 4 is a longitudinal sectional view taken along line XX in FIG. 3;

FIG. 5 is a longitudinal sectional view taken along line YY in FIG. 3;

FIG. 6 is a diagram showing a connection relationship in each state.

FIG. 7 is a diagram showing connection relationships required in each state.

FIG. 8 is a diagram corresponding to FIG. 1 showing a conventional example.

FIG. 9 is a diagram showing a connection relationship in each state in a conventional example.

[Explanation of symbols]

12 is a lever (operating member), 20 is a first substrate, 21 is a second substrate, 22 is a first fixed contact group, 23 is a second fixed contact group, 24 is a connection line, and 26 is a first fixed contact group. Movable contact, 2
6a, 26b, 26c are contact portions, 28 is a second movable contact, 28a, 28b, 28c are contact portions, B1 is a first common fixed contact, B2 is a second common fixed contact, and E1 is a second common fixed contact. One fixed contact, E2 a second fixed contact,
E3 is a third fixed contact, and E4 is a fourth fixed contact.

Claims (3)

[Claims] A first and a second fixed contact group having a common fixed contact and a plurality of fixed contacts in which the connection order is set, the common fixed contact being connected to each other; One operation member and the first and second fixed contact groups are provided corresponding to each other, and are moved in a predetermined direction in synchronization with the operation of the operation member. First and second movable contacts for sequentially connecting contacts to corresponding fixed contacts in accordance with a set connection order; the first and second fixed contact groups and the first and second movable contacts Each time the first and second movable contacts move in a predetermined direction, the contact is configured to sequentially increase the total number of fixed contacts connected to the common fixed contact. Switch device. 2. The first and second fixed contact groups each include a common fixed contact and two corresponding fixed contacts arranged in two rows along the moving direction of the corresponding movable contact. The first and second movable contacts each have three contact portions that contact the common fixed contact and the two fixed contacts of the corresponding fixed contact group, respectively. Switch device. 3. The switch device according to claim 1, wherein the first fixed contact group and the second fixed contact group are provided on different substrates.