JP5350196B2 - Switch device - Google Patents

Description

  The present invention relates to a switch device for selectively driving a plurality of motors, and in particular, includes two multidirectional switches operable in a plurality of directions, and one multidirectional switch is operated while the other multidirectional switch is operated. The present invention relates to a switch device whose operation is invalidated.

  Conventionally, a switch device for selectively driving a plurality of motors is used in a power seat of a vehicle. The power seat switch device is provided with a multi-directional switch that can be operated in a plurality of directions, and can drive a motor that moves the seat in the front-rear direction, the up-down direction, and the tilt direction in accordance with the operation.

  The power seat motor has a very high current value, so if multiple motors are driven at the same time, the current capacity of the wiring and connectors will be exceeded. For this reason, the switch device requires a mechanism that prevents the motors from being driven simultaneously. In order to prohibit the simultaneous operation of the motor in the switch device, it is known that the multidirectional switch can be operated only in one direction by mechanical means. As such a switch device, there is one as disclosed in Patent Document 1, for example.

JP-A-7-192576

  The power seat switch device has various forms of multi-directional switches, and a plurality of multi-directional switches may be provided in some cases. When a plurality of multi-directional switches are provided as described above and the multi-directional switches are arranged apart from each other, it is not possible to restrict the operation direction to only one direction by mechanical means. It can be difficult. Even if mechanical means can be provided, there is a problem that the structure becomes complicated and the number of parts increases, resulting in an increase in cost.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a switch device that can restrict simultaneous operation of a plurality of multidirectional switches with a simple configuration.

In order to solve the above-described problem, the switch device according to the present invention is configured to exclude two multi-directional switches that can be operated in a plurality of directions and only the multi-directional switch that is operated first among the multi-directional switches. In a switch device having an output unit and driving a motor by the multidirectional switch,
The multi-directional switch can be operated only in one direction and is connected to a current supply line, respectively, and the exclusive output unit can selectively disable one of the current supply lines. When one multi-directional switch is operated in any one direction, the current supply line of the operated multi-directional switch is enabled and the current supply line of the other multi-directional switch is disabled. And
Each of the multi-directional switches has a plurality of switching contacts, and the switching contacts can be switched according to operation between connection to the power supply potential portion and connection to the ground for the motor,
The exclusive output unit includes a switching drive unit that switches a multi-directional switch that grounds the switching contact, and an operation detection unit that operates the switching drive unit in accordance with the operation of the multi-directional switch,
The operation detection unit includes two input units connected to each multi-directional switch, and one output unit connected to the switching drive unit,
When the motor and the power supply potential unit are connected by a switching contact that constitutes one of the multi-directional switches in accordance with an operation, and a power supply voltage is applied to one input unit, the switching drive from the output unit A first output for grounding one of the operated multi-directional switches is made to the means, and the first output is operated even if the other multi-directional switch is operated while the operation of the one multi-directional switch is maintained. Maintain
When the motor and the power supply potential unit are connected by a switching contact constituting the other multi-directional switch in accordance with the operation and a power supply voltage is applied to the other input unit, the output unit supplies the switching drive means. On the other hand, a second output for grounding the other multi-directional switch that has been operated is made, and the second output is maintained even if one multi-directional switch is operated while the operation of the other multi-directional switch is maintained. It is configured as characterized by.

  Further, in the switch device according to the present invention, the operation detecting means includes three switching elements that are switched on / off depending on the presence / absence of a voltage applied to the base portion. The second switching element is connected to the other input section with the base section connected to the other input section. And switching on / off between the base portion of the first switching element and the ground, and the third switching element has a base portion connected to the one input portion and the second switching element. It is configured to be connected so as to switch on and off between the base portion of the base and the ground.

  Furthermore, in the switch device according to the present invention, the switching contact includes a drive terminal connected to a terminal of the motor, a power supply terminal connected to a power supply potential for driving the motor, and a ground terminal connected to ground. The connection from the drive terminal to either the power supply terminal or the ground terminal can be switched by operation, the switching contacts are arranged in pairs, and the drive terminals of each set are respectively connected to the motor. In addition to being connected to both terminals, one of the connection states is switched in accordance with an operation in one direction, and power is supplied to the motor.

  In the switch device according to the present invention, the input unit is connected to a drive terminal of each switching contact provided in the multidirectional switch by a connection line, and each connection line is connected to the exclusive output unit side from the switching contact side. A diode that allows current to flow only in is provided.

  According to the switch device of the present invention, since the simultaneous operation of the multidirectional switch is regulated by an electrical configuration, each multidirectional switch is compared with the case where the simultaneous operation of these multidirectional switches is regulated by mechanical means. This increases the degree of freedom of arrangement, simplifies the structure, and reduces the number of parts.

It is a front view of the operation part which comprises the switch apparatus in this embodiment. It is a top view of the 1st multi-directional switch corresponding to a 1st operation knob. It is a top view of the 2nd multi-way switch corresponding to the 2nd operation knob. It is an electric circuit diagram for prohibiting simultaneous operation of a first multidirectional switch and a second multidirectional switch. It is an electric circuit diagram which has the exclusive output part of another form.

  Embodiments of the present invention will be described in detail with reference to the drawings. The switch device of the present embodiment is used for operating a power seat of a vehicle, and functions as a motor switch that operates the seat in a plurality of directions. In FIG. 1, the front view of the operation part which comprises the switch apparatus in this embodiment is shown. The operation part of the switch device is arranged, for example, on the side surface of the driver's seat.

  As shown in FIG. 1, two operation knobs 10 and 20 are spaced apart from each other in the operation portion constituting the switch device of the present embodiment. The first operation knob 10 has a substantially rectangular shape and can be operated in two directions along the longitudinal direction and in two directions along the short direction perpendicular to the longitudinal direction. The second operation knob 20 has a substantially rectangular shape, and includes two directions along the longitudinal direction, two directions along the short direction perpendicular to the longitudinal direction, and a left-right tilt direction centered on the central portion. , Each can be operated.

  FIG. 2 shows a plan view of the first multidirectional switch 1 corresponding to the first operation knob 10. The first multi-directional switch 1 has a case 11 in which a switching contact or the like is housed. The first operation knob 10 is held on the upper surface of the case 11 and is movable in four directions according to the operation. A movable member 12 is arranged. The movable member 12 has a protruding knob mounting portion 12a that holds the first operation knob 10 at the center, and the first flat surface portion 12b is adjacent to the knob mounting portion 12a and the first flat portion 12b is positioned on the other side. Two plane portions 12c are provided.

  From the case 11, a plurality of slide parts linked to an internal switching contact protrude, and these slide parts are linked to the movable member 12 so as to slide along with the movement. As the slide parts, a first slider 13, a second slider 14, a third slider 15, and a fourth slider 16 protrude, and each slide part is linked to a switching contact in the case 11.

  The movable member 12 holds the first slider 13 at the first flat surface portion 12b and is adjacent to the third slider 15, and holds the second slider 14 at the second flat surface portion 12c and is adjacent to the fourth slider 16. To do. When the movable member 12 is moved in any one of four directions, up, down, left, and right in the figure by operating the first operation knob 10, any one of these slide parts slides and any one switching contact of the case 11 is switched. .

  A rising wall portion 11e is formed on the upper surface of the case 11 along the circumferential direction. The wall portion 11e includes a first cutout portion 11a, a second cutout portion 11b, a third cutout portion 11c, and a fourth cutout portion. A portion 11d is formed. The first cutout portion 11a has substantially the same width as the width of the first flat surface portion 12b of the movable member 12 in the drawing, and the second cutout portion 11b extends in the vertical direction of the first flat portion 12b of the movable member 12 in the drawing. The width is approximately the same as the width. Further, the third notch portion 11c has substantially the same width as the width of the second flat surface portion 12c of the movable member 12 in the figure, and the fourth notch portion 11d is the vertical length of the second flat surface portion 12c of the movable member 12 in the figure. The width is approximately the same as the width in the direction.

  Thus, when the movable member 12 moves in any of the four directions, any one of the flat portions is in the cutout portion, and the movement in the direction orthogonal to the moving direction is restricted by the wall portion 11e. Can do. By such a mechanical restricting means, the movable member 12 always moves only in one direction, and a plurality of slide parts are not slid simultaneously. Therefore, a plurality of motors corresponding to the first multi-directional switch 1 are simultaneously provided. It can be prevented from being driven.

  FIG. 3 is a plan view of the second multidirectional switch 2 corresponding to the second operation knob 20. The second multi-directional switch 2 has a case 21 in which a switching contact or the like is housed. The second operation knob 20 is held on the upper surface of the case 11 and is movable in six directions in accordance with the operation. A movable member 22 is arranged. The movable member 22 has a protruding knob mounting portion 22a that holds the second operation knob 20 at the center, and the first flat surface portion 22b, the second flat surface portion 22c, A third plane part 22d and a fourth plane part 22e are provided.

  From the case 11, a first slider 23, a second slider 24, a third slider 25, a fourth slider 26, a fifth slider 27, and a sixth slider 28 protrude, and these slide parts are included in the movable member 22. Along with movement in one direction, either one or two are pressed and slid.

  The movable member 22 holds the first slider 23 at the first plane portion 22b, holds the second slider 24 at the second plane portion 22c, holds the third slider 25 at the third plane portion 22d, and moves to the fourth plane. The fourth slider 26 is held by the portion 22e. Further, the fifth slider 27 and the sixth slider 28 are disposed opposite to both sides of the first flat portion 22b.

  When the movable member 22 is moved in the vertical and horizontal directions in the figure by the second operation knob 20, a set of the first slider 23 and the second slider 24 or a set of the third slider 25 and the fourth slider 26 is set by each plane portion. Are moved by sliding. Further, when the movable member is moved in the rotation direction, the fifth slider 27 or the sixth slider 28 is slid by any side portion of the first plane portion 22b.

  On the upper surface of the case 21, a rising wall portion 21e is formed along the circumferential direction. The wall portion 21e includes a first cutout portion 21a, a second cutout portion 21b, a third cutout portion 21c, and a fourth cutout portion. A portion 21d is formed. Each flat surface portion of the movable member 22 protrudes so that the tip portion thereof fits with each notch portion, and as the movable member 22 moves in the linear direction, the protruding portion of the flat surface portion is accommodated in the notch portion facing and moved. The sliding in the direction orthogonal to the direction is restricted. Further, when the movable member 22 is rotated, the protruding portion at the tip of each flat surface portion comes into contact with the wall portion 21e and restricts the movement of the movable member 22 in other directions. By such a mechanical regulating means, the movable member 22 always moves only in one direction, and a plurality of slide parts are not slid at the same time. Therefore, a plurality of motors corresponding to the second multidirectional switch 2 are simultaneously provided. It can be prevented from being driven.

  As described above, in each of the first multi-directional switch 1 and the second multi-directional switch 2, the simultaneous driving of the plurality of motors is prohibited by the mechanical restriction means. On the other hand, when the first multidirectional switch 1 and the second multidirectional switch 2 are operated simultaneously, an electrical means is used as a mechanism for preventing the plurality of motors from being driven simultaneously. FIG. 4 shows an electric circuit diagram for prohibiting simultaneous operation of the first multidirectional switch 1 and the second multidirectional switch 2.

  As shown in FIG. 4, the electric circuit constituting the switch device is capable of operating only the first multi-directional switch 1, the second multi-directional switch 2, and the multi-directional switch operated first among these multi-directional switches. And an exclusive output unit 4. The first multi-directional switch 1 has a first contact part 30 and a second contact part 31 that are switched on and off in accordance with an operation in four directions. The second multi-directional switch 2 includes a third contact portion 32, a fourth contact portion 33, and a fifth contact portion 34 that are turned on and off in accordance with operations in six directions.

  The first multi-directional switch 1 constitutes a part of the first current supply line 8 that connects the power supply potential section 6 and the ground 5 and switches the connection state to the first motor 7a or the second motor 7b. Switch the current supply. The second multi-directional switch 2 constitutes a part of the second current supply line 9 that connects the power supply potential unit 6 and the earth 5, and the connection state is switched to switch the third motor 7c, the fourth motor 7d, or the second 5 Switch the current supply to the motor 7e.

  Each contact portion of the first multidirectional switch 1 and the second multidirectional switch 2 has a pair of switching contacts. The first contact part 30 is a first switching contact 30a and a second switching contact 30b, the second contact part 31 is a third switching contact 31a and a fourth switching contact 31b, and the third contact part 32 is a fifth switching contact 32a and The sixth switching contact 32b, the fourth contact portion 33 includes a seventh switching contact 33a and an eighth switching contact 33b, and the fifth contact portion 34 includes a ninth switching contact 34a and a tenth switching contact 34b.

  The first contact portion 30 is turned on / off in accordance with the operation in the two directions along the longitudinal direction of the first operation knob 10 in the first multi-directional switch 1, and switches the state of current supply to the first motor 7a. Can do. The first switching contact 30a and the second switching contact 30b are respectively a drive terminal 35 connected to the first motor 7a, a power supply terminal 36 connected to the power supply potential unit 6, and a ground terminal 37 connected to the ground side. In the initial state, the drive terminal 35 is connected to the ground terminal 37, and the first operation knob 10 is operated in one predetermined direction, whereby the drive terminal 35 and the power supply terminal at the first switching contact 30a. 36 becomes a connection state, and the first motor 7a rotates forward in one direction. When the first operation knob 10 is operated in one direction on the opposite side, the drive terminal 35 and the power supply terminal 36 are connected at the second switching contact 30b, and the first motor 7a is reversed in the opposite direction.

  The contact parts other than the first contact part 30 are also configured in the same manner, and any one switching contact is switched as the first operation knob 10 or the second operation knob 20 is operated in one direction, Either motor rotates forward or reverse. These descriptions are omitted.

  The exclusive output unit 4 is connected to the ground terminal 37 of one of the first multi-directional switch 1 and the second multi-directional switch 2 when operated in one direction with the first operating knob 10 or the second operating knob 20. Only one of the first current supply line 8 and the second current supply line 9 is selectively invalidated. For this purpose, the exclusive output unit 4 includes a switching drive unit 40 that switches a multidirectional switch that connects the switching contact to ground, and an operation detection unit 41 that operates the switching drive unit 40 in accordance with the operation of the multidirectional switch. .

  The switching drive means 40 drives the switching unit 48, one of which is connected to the ground 5 and the other is selectively connected to either the first current supply line 8 or the second current supply line 9. And a drive unit 49. In the initial state, the switching unit 48 connects the second current supply line 9 to the ground 5, and the first current supply line 8 is not connected to the ground 5. The drive unit 49 is connected to a power supply potential, and is supplied with current by the operation of the operation detection unit 41.

  The motion detection means 41 includes a first input unit 42 connected to each drive terminal 35 of the first multidirectional switch 1 and a second input unit 43 connected to each drive terminal 35 of the second multidirectional switch 2. And an output unit 44 connected to the drive unit 49 of the switching drive means 40. The first input unit 42 and the second input unit 43 are provided with a diode for each connection line from each drive terminal 35 so that current flows only from the switching contact side to the exclusive output unit 4 side.

  When the first multi-directional switch 1 is operated and there is an input from the first input unit 42, the output unit 44 outputs the first output, and the switching drive means 40 receiving the first output receives the second current supply line. 9 is cut off to invalidate the operation of the second multi-directional switch 2. On the other hand, when the second multi-directional switch 2 is operated and there is an input from the second input unit 43, the second output is made from the output unit 44, and the switching drive means 40 that receives the second output receives the first current. The supply line 8 is shut off to invalidate the operation of the first multidirectional switch 1.

  Further, the operation detection means 41 includes a transistor and includes three switching elements that are switched on and off depending on the presence or absence of a voltage applied to the base portion. The first switching element 45 has a base portion connected to the first input portion 42 and is connected to switch on / off between the driving portion 49 constituting the switching driving means 40 and the ground. The second switching element 46 has a base portion connected to the second input portion 43 and is connected so as to switch on / off between the base portion of each of the first switching element 45 and the third switching element 47 and the ground. . The base portion of the third switching element 47 is connected to the first input portion 42, and is connected so as to switch on / off between the base portion of the second switching element 46 and the ground.

  By configuring the motion detection means 41 in this way, when the first multi-directional switch 1 or the second multi-directional switch 2 is operated from the state where none of the multi-directional switches are operated, the following To work. First, when the first multi-directional switch 1 is operated in any one direction, the voltage of the power supply potential unit 6 is changed between the base of the first switching element 45 and the third switching element 47 via the first input unit 42. Applied to the base.

  When a voltage is applied to the base portion of the first switching element 45, the first switching element 45 is turned on, and the drive unit 49 constituting the switching drive means 40 provides a first output that is grounded. As a result, a current is supplied to the drive unit 49 to drive the switching unit 48 and connect the first current supply line 8 to the ground 5. As a result, a current is supplied to the first motor 7 a or the second motor 7 b via the first multidirectional switch 1.

  When a voltage is applied to the base portion of the third switching element 47, the third switching element 47 is turned on, and the base portion of the second switching element 46 is grounded at the same potential as the ground. In this state, even if the second multi-directional switch 2 is operated and there is an input from the second input unit 43, the second switching element 46 is not turned on, and the first output state is maintained. Therefore, even if the second multi-directional switch 2 is operated, the second current supply line 9 remains cut off, and no current is supplied to the third motor 7c, the fourth motor 7d, and the fifth motor 7e. . Therefore, while the first multidirectional switch 1 is being operated, the operation of the second multidirectional switch 2 is invalidated.

  Next, when the second multidirectional switch 2 is operated in any one direction from a state where none of the multidirectional switches are operated, the following operation is performed. The voltage of the power supply potential unit 6 is applied to the base unit of the second switching element 46 via the second input unit 43. When a voltage is applied to the base portion of the second switching element 46, the second switching element 46 is turned on and the base portion of the first switching element 45 is grounded. When the base part of the first switching element 45 is grounded, the first switching element 45 is turned off, and the drive part 49 constituting the switching drive means 40 provides a second output that is disconnected from the ground. As a result, no current is supplied to the drive unit 49, and the switching unit 48 is in a state where the second current supply line 9 is connected to the ground 5. As a result, a current is supplied to the third motor 7c, the fourth motor 7d, or the fifth motor 7e via the second multidirectional switch 2.

  At this time, even if the first multi-directional switch 1 is operated and there is an input from the first input part 42, the base part of the first switching element 45 is in a state connected to the ground by the second switching element 46, The first switching element 45 cannot be turned on, and the state of the second output is maintained. Further, since the base portion of the third switching element 47 is also connected to the ground by the second switching element 46, the third switching element 47 is kept off and acts on the base portion of the second switching element 46. The second switching element 46 is kept on. For this reason, even if the first multidirectional switch 1 is operated, the first current supply line 8 remains cut off, and no current is supplied to the first motor 7a and the second motor 7b. Accordingly, while the second multidirectional switch 2 is being operated, the operation of the first multidirectional switch 1 is invalidated.

  As described above, since the simultaneous operation of the first multi-directional switch 1 and the second multi-directional switch 2 is restricted by an electrical configuration, the simultaneous operation of these multi-directional switches is restricted by mechanical means. In comparison, the degree of freedom of arrangement of the multidirectional switches can be increased, the structure can be simplified, and the number of parts can be reduced.

  Next, another form of the exclusive output unit will be described. FIG. 5 shows an electric circuit diagram having an exclusive output unit 104 of another form. In this other embodiment, the switching drive means 40, the first input section 42, and the second input section 43 that constitute the exclusive output section 104 are the same as those in the above-described embodiment, but the configuration of the operation detection means 141 is slightly different. .

  The operation detection unit 104 includes a transistor and a diode, and includes two switching elements that are switched on and off depending on the presence / absence of a voltage applied to the base portion and one diode. The fourth switching element 145 has a base portion connected to the first input portion 42 and is connected so as to switch on / off between the drive portion 49 constituting the switching drive means 40 and the ground. The fifth switching element 146 is connected so that the base part is connected to the second input part 43 and ON / OFF is switched between the base part of the fourth switching element 145 and the ground. A first resistor R1 is interposed between the base portion and the emitter portion of the fifth switching element 146. The diode D1 is connected so that a current flows from the connection point between the second resistor R2 and the third resistor R3 interposed between the second input unit 43 and the fifth switching element 146 to the output unit 44.

  By configuring the motion detection means 141 in this way, when the first multi-directional switch 1 or the second multi-directional switch 2 is operated from the state where none of the multi-directional switches is operated, the following To work. First, when the first multidirectional switch 1 is operated in any one direction, the voltage of the power supply potential unit 6 is applied to the base unit of the fourth switching element 145 via the first input unit 42.

  When a voltage is applied to the base portion of the fourth switching element 145, the fourth switching element 145 is turned on, and the drive unit 49 constituting the switching drive means 40 provides a first output that is grounded. As a result, a current is supplied to the drive unit 49 to drive the switching unit 48 and connect the first current supply line 8 to the ground 5. As a result, a current is supplied to the first motor 7 a or the second motor 7 b via the first multidirectional switch 1.

  In this state, even if the second multi-directional switch 2 is operated and there is an input from the second input unit 43, the fifth switching element 146 does not turn on as long as a predetermined condition is satisfied, and the first output State is maintained. Therefore, even if the second multi-directional switch 2 is operated, the second current supply line 9 remains cut off, and no current is supplied to the third motor 7c, the fourth motor 7d, and the fifth motor 7e. . Therefore, while the first multidirectional switch 1 is being operated, the operation of the second multidirectional switch 2 is invalidated.

Ｖｃｅ（ｓａｔ）：第４スイッチング素子１４５オン時のコレクタ−エミッタ間飽和電圧
Ｖｆ：ダイオードＤ１の順方向電圧
ｒ１：第１抵抗Ｒ１の抵抗値
ｒ２：第２抵抗Ｒ２の抵抗値
Ｖｂｅ：第５スイッチング素子１４６がオンとなるベース−エミッタ間順方向電圧 The predetermined condition mentioned above is to satisfy the following expression.

Vce (sat): Collector-emitter saturation voltage when the fourth switching element 145 is on Vf: forward voltage r1 of the diode D1: resistance value r2 of the first resistor R1: resistance value Vbe of the second resistor R2: fifth switching Base-emitter forward voltage at which element 146 is turned on

  Next, when the second multi-directional switch 2 is operated in any one direction from a state where none of the multi-directional switches are operated, the following operation is performed. The voltage of the power supply potential unit 6 is applied to the base unit of the fifth switching element 146 via the second input unit 43. When a voltage is applied to the base portion of the fifth switching element 146, the fifth switching element 146 is turned on, and the base portion of the fourth switching element 145 is grounded. When the base part of the fourth switching element 145 is grounded, the fourth switching element 145 is turned off, and the drive part 49 constituting the switching drive means 40 provides a second output that is disconnected from the ground. As a result, no current is supplied to the drive unit 49, and the switching unit 48 is in a state where the second current supply line 9 is connected to the ground 5. As a result, a current is supplied to the third motor 7c, the fourth motor 7d, or the fifth motor 7e via the second multidirectional switch 2.

  At this time, even if the first multi-directional switch 1 is operated and there is an input from the first input unit 42, the base portion of the fourth switching element 145 is connected to the ground by the fifth switching element 146. The fourth switching element 145 cannot be turned on, and the state of the second output is maintained. For this reason, even if the first multidirectional switch 1 is operated, the first current supply line 8 remains cut off, and no current is supplied to the first motor 7a and the second motor 7b. Accordingly, while the second multidirectional switch 2 is being operated, the operation of the first multidirectional switch 1 is invalidated.

  By configuring the exclusive output unit as in this embodiment, three switching elements composed of transistors are required in the first embodiment, whereas in this embodiment, it can be configured with two transistors and one diode. Can lower the cost. On the other hand, in this embodiment, it is necessary to satisfy the condition shown in Equation 1. The exclusive output unit of the first form has higher noise resistance.

  Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical idea.

DESCRIPTION OF SYMBOLS 1 1st multidirectional switch 2 2nd multidirectional switch 4 Exclusive output part 5 Ground 6 Power supply potential part 8 1st electric current supply line 9 2nd electric current supply line 10 1st operation knob 20 2nd operation knob 35 Drive terminal 36 Power supply terminal 37 ground terminal 40 switching drive means 41 operation detection means 42 first input section 43 second input section 44 output section 45 first switching element 46 second switching element 47 third switching element

Claims (4)

It has two multi-directional switches that can be operated in a plurality of directions, and an exclusive output unit that can operate only the multi-directional switch that has been operated first among the multi-directional switches, and drives the motor by the multi-directional switch. In the switch device to
The multi-directional switch can be operated only in one direction and is connected to a current supply line, respectively, and the exclusive output unit can selectively disable one of the current supply lines. When one multi-directional switch is operated in any one direction, the current supply line of the operated multi-directional switch is enabled and the current supply line of the other multi-directional switch is disabled. And
Each of the multi-directional switches has a plurality of switching contacts, and the switching contacts can be switched according to operation between connection to the power supply potential portion and connection to the ground for the motor,
The exclusive output unit includes a switching drive unit that switches a multi-directional switch that grounds the switching contact, and an operation detection unit that operates the switching drive unit in accordance with the operation of the multi-directional switch,
The operation detection unit includes two input units connected to each multi-directional switch, and one output unit connected to the switching drive unit,
When the motor and the power supply potential unit are connected by a switching contact that constitutes one of the multi-directional switches in accordance with an operation, and a power supply voltage is applied to one input unit, the switching drive from the output unit A first output for grounding one of the operated multi-directional switches is made to the means, and the first output is operated even if the other multi-directional switch is operated while the operation of the one multi-directional switch is maintained. Maintain
When the motor and the power supply potential unit are connected by a switching contact constituting the other multi-directional switch in accordance with the operation and a power supply voltage is applied to the other input unit, the output unit supplies the switching drive means. On the other hand, a second output for grounding the other multi-directional switch that has been operated is made, and the second output is maintained even if one multi-directional switch is operated while the operation of the other multi-directional switch is maintained. A switch device characterized by: The operation detecting means includes three switching elements that are switched on and off depending on the presence or absence of a voltage applied to the base portion. The first switching element has a base portion connected to the one input portion and a power source. ON / OFF switching between the output part connected to the electric potential on the side of the switching drive means and the ground, and the second switching element has a base part connected to the other input part, and the first switching element The base portion of the second switching element is switched between on and off, and the base portion of the third switching element is connected to the one input portion, and the base portion of the second switching element is turned on / off between the ground portion and the ground. The switch device according to claim 1 , wherein the switch device is connected so as to be switched off. The switching contact includes a drive terminal connected to a terminal of the motor, a power supply terminal connected to a power supply potential for driving the motor, and a ground terminal connected to the ground, from the drive terminal to the power supply terminal. Alternatively, the connection to either of the ground terminals can be switched by operation, the switching contacts are arranged in pairs, and the drive terminals of each set are connected to both terminals of the motor, respectively, and in one direction 3. The switch device according to claim 1, wherein one of the connection states is switched in accordance with an operation, and power is supplied to the motor. 4. The input unit is connected to a drive terminal of each switching contact provided in the multidirectional switch by a connection line, and each connection line is provided with a diode that allows current to flow only from the switching contact side to the exclusive output unit side. The switch device according to claim 3 .

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