JPH073764B2 - Bidirectional switch - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-way switch that can be used in, for example, an automobile automatic door lock system, an automatic door lock system including a keyless entry system, and the like.

(Prior Art) Conventionally, for example, Japanese Patent Application Laid-Open No.
There was one equipped with the one-way switch described in Japanese Patent Laid-Open No. 58-206016.

That is, this one-way switch is, for example, as shown in FIG. 5, a pair of terminals 102a on the terminal base 101,
A movable contactor 103 that comes into contact with and separates from the 102b, and an insulator 104 that controls conduction / interruption of the pair of terminals 102a and 102b are arranged coaxially with an operator support shaft 105, and an operator 106
6 is rotated in one direction, the protrusion 103a provided on the movable contactor 103 and the protrusion 104a provided on the insulator 104 are engaged with each other as shown in FIGS. R forms, the insulator 104 rotates integrally with the movable contactor 103 within a certain range, and the pair of terminals 102a and 102b is interposed via the movable contactor 103.
To conduct. Then, as shown in FIG. 6 (c), the arm 107 of the insulator 104 is connected to the pair of stoppers 110a and 110a.
Only the movable contactor 103 is rotated by contacting one of the stoppers 110a of b, the protrusion 103a of the movable contactor 103 and the protrusion 104a of the insulator 104 are disengaged, and the movable contactor 103 is placed on the insulator 104. Riding on the terminal, as shown in FIG. 6 (d), terminals 102a, 102b
Cut off the continuity with. When this operation corresponds to the operation of the door lock of the door lock system of the automobile, for example, it corresponds to the case where the door lock knob is moved downward.

On the other hand, when the operator 106 is rotated in the other direction from the above-described state, only the movable contactor 103 is rotated, and then the movable contactor 10 which is the insulator rotating means R.
The protrusion 103a of 3 and the protrusion 104a of the insulator 104 are engaged with each other, and the insulator 104 is integrally rotated while the conduction between the terminals 102a and 102b is cut off.
6, the movable contactor 103 rides on the insulator 104 in the same manner as when the arm 107 contacts the other stopper 110b of the pair of stoppers 110a and 110b and is rotated in one direction as described above. As shown in (e), only the movable contactor 103 rotates to return to the posture before the ON operation. This operation corresponds to the operation of pulling up the door lock knob, corresponding to the operation of the door lock knob.

(Problems to be Solved by the Invention) However, in the above-described one-way switch, the operator 10
Only when 6 is rotated in one direction, the movable contactor 103
Since the terminals 102a and 102b can be electrically connected via the door lock system, it can be locked or unlocked by operating the door lock knob or the door key on the driver side when the door lock system is supported. There is a problem that only one of the operations can be performed.

Also, in the case of a so-called keyless entry system that locks or unlocks all doors from the outside using a remote control etc., all other doors are locked and unlocked in response to the operation of the actuator on the driver's side. Therefore, if the operator 106 operates only when it rotates in one direction,
It has a drawback that it cannot be used for locking and unlocking all doors as it is.

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and when the lock knob or the door key on the driver side is operated by the door lock system or the like in accordance with the rotation of the operator, all the others are An object of the present invention is to provide a two-way switch that can operate a system that performs different operations on the outward path and the return path such as locking and unlocking the door.

[Structure of the Invention] (Means for Solving Problems) A structure of a two-way switch according to the present invention for achieving the above-mentioned object is a terminal section having a first terminal, a second terminal and a third terminal. A movable contactor which is fixed to the operator support shaft, contacts the third terminal, and contacts and separates from the first terminal and the second terminal in accordance with the rotation of the operator support shaft; It is rotatably arranged concentrically with the operator support shaft between the contactor and the contactor to cut off the conduction of the first terminal or the second terminal, and only when rotated in one direction. The third terminal is electrically connected via the movable contactor, and the second terminal and the third terminal are electrically connected via the movable contactor only when rotating in the other direction. An insulator made of an insulating material that forms a conductive region, a pair of stoppers that contact the arm provided on the insulator to restrict the rotation of the insulator, and the insulator and the movable contactor in the rotation range of the insulator. It is provided with an insulator rotating means that is integrally rotated and that causes a slip between the insulator and the movable contactor when the rotating range is exceeded.

(Example) Hereinafter, the present invention will be described with reference to the drawings.

1 to 4 are views showing an embodiment of the present invention.

1 to 3, reference numeral 1 denotes a housing that accommodates a two-way switch, and an operator support shaft 3 having an operator 2 fixed to one end thereof is inserted into the housing 1, and a housing 1 is provided on a bottom surface of the housing 1. Is provided with a pair of stoppers 5a, 5b projectingly restricting a rotation range of an insulator 4, which will be described later. A terminal portion 10 is fixed on the bottom surface of the housing 1. That is, the terminal portion 10 includes a first terminal 12 and a second terminal 13 which are arranged on the base 11 in the radial direction with the operator support shaft 3 as a center, and the same as the second terminal 13 on the base 11. A third terminal 14 is disposed on the circumference at a position distant from the second terminal 13. Furthermore, the production of this terminal part 10
Similar to the method of manufacturing a printed wiring board, the base
The wiring part and each terminal 12, 13, 14 are formed on 11 and only each terminal 12, 13, 14 is exposed, and the remaining part is coated to be in an insulating state. External wiring is connected so that two circuits can be switched.

Reference numeral 21 denotes a contact holder. On the lower surface of the contact holder 21, a movable contactor 22 that is in constant contact with the third terminal 14 and is in contact with the first terminal 12 and the second terminal 13 is fixed. 21 is inserted into the operator support shaft 3, and then the pin 23 is inserted into the fixing hole 3a of the operator support shaft 3. The contact holder 21 is interlocked with the rotation of the operator 2 and the movable contactor.
22 also slides on the base 11. Further, a boss portion 24 is provided at the center of the lower end of the contact holder 21 on the housing 1 side, and the third terminal 14 and the first terminal 12 or the second terminal is provided on the side portion of the boss portion 24. Insulator 4 that controls conduction and interruption with 13
Is rotatably fitted. That is, the insulator 4 is formed of an insulating material such as resin and protrudes from the ring portion 31 which is fitted to the boss portion 24 of the contact holder 21. The shape of the insulator 4 is two fan shapes having different radii. The shape is such that the ends are connected by shifting. That is, the insulator 4 selectively covers the first terminal 12 or the second terminal 13 arranged side by side on the base 11 by the turning method of the operation element 2. Further, the rotation of the insulator 4 is performed via the above-mentioned fan-shaped connecting portions, that is, the projections 32 projecting on the fan-shaped portion on the side of the ring portion 31. Further, 33 is the ring portion
It is an arm protruding from 31 and arranged between the pair of stoppers 5a and 5b so as to restrict the rotation range of the insulator 4.

The movable contactor 22 includes two arc-shaped contact arms in the radial direction along the counterclockwise direction of the contact holder 21.
41, 42, and also has an arc-shaped contact arm 43 along the direction facing the contact arm 42 (clockwise direction of the contact holder 21), and at the tip of each contact arm 41, 42, 43. , The contact points 41a, 42a, 43a are bent downward, and the contact point 41a and the contact point 42a are brought into contact with and separated from the first terminal 12 and the second terminal 13 via the insulator 4, and the contact point 43a is It is always in sliding contact with the third terminal 14. That is, when the contact 41a engages with or rides over the protrusion 32 provided on the insulator 4, the insulator 4 is brought into contact with the stopper 5a or the stopper 5b by the arm 33 according to the rotating direction of the operator 2. Regulates rotation of the first terminal
Either the first terminal 12 or the second terminal 13 is covered, and either the first terminal 12 or the second terminal 13 is exposed to form a conductive area l, and a contact 41a or a contact 42a is provided in the conductive area l. Is controlled so as to approach and separate. That is, in this embodiment, the protrusion 32 of the insulator 4 and the contact 41a constitute the insulator rotating means R.

Next, the relationship between the rotation of the insulator 4 and the contact / separation of the contact points 41a and 42a will be described in more detail with reference to FIG. The contact 43a at this time is always in sliding contact with the third terminal 14.

First, when the manipulator 2 is rotated counterclockwise from the state shown in FIG. 4 (a), a movable contactor interlocking with the manipulator 2 is obtained.
The contacts 41a, 42a of 22 are sliding on the base 11. At this time, since the protrusion 32 and the contact 41a of the insulator 4 are not engaged with each other, the insulator rotating means R does not work and the arm 33 Does not rotate while being in contact with the stopper 5b. Then, when the operator 2 is further rotated to reach the state shown in FIG. 4 (b), the contact 41a slides on the insulator 4 and the contact 42a slides on the base 11. Even in this state, the contact 41a does not engage with the protrusion 33, and the insulator rotating means R does not work. When the operator 2 is further rotated from this state to the state shown in FIG. 4 (c), the contact 41a is engaged with the protrusion 32 of the insulator 4. That is, this engagement constitutes the insulator rotating means R, and the insulator 4 rotates in conjunction with the operator 2 to cover the first terminal 12 and the second terminal 13. When the operator 2 is further rotated, the arm 33 that restricts the rotation of the insulator 4 contacts the stopper 5a to stop the interlocking between the insulator 4 and the operator 2, as shown in FIG. 4 (d). . At this time, the contact 41a is in engagement with the protrusion 32 of the insulator 4,
Further, the contact 42a comes into contact with the conduction region 1 of the second terminal 13 exposed by the rotation of the insulator 4 to bring the second terminal 13 and the third terminal 14 into conduction. Then, when the operator 2 is further rotated, the arm 33 contacts the stopper 5a to stop the rotation of the insulator 4, so that the contact 41a is projected from the insulator 4 as shown in FIG. 4 (e). The contact point 42a slides over the insulator 4 after passing over 32 and disconnecting the conduction state between the second terminal 13 and the third terminal 14. Further, when the operator 2 is rotated, the contact 41a and the contact 42a slide on the base 11 as shown in FIG. 4 (f). The counterclockwise rotation of the operator 2 will be described in correspondence with the automatic door lock system, which corresponds to the case where the door lock knob on the driver's seat side is moved downward or the door key is rotated in the locking direction.

On the other hand, when the operator 2 is rotated clockwise from the state shown in FIG. 4 (f), the contact 41a slides on the base 11 as shown in FIG. 4 (g), and the protrusion 32 of the insulator 4 is formed. And the insulator 4 is interlocked with the operator 2. That is, the protrusion 32 and the contact 41a are engaged with each other to form the insulator rotation means R, and the insulator 4 is also rotated with the rotation of the operation element 2. Then, when the manipulator 2 is further rotated, as shown in FIG.
Is the first terminal 12 as the insulator 4 rotates.
To contact the exposed conductive region l. Contact 42 at this time
Since a slides on the insulator 4, the first terminal 12 and the third terminal 14 are brought into conduction. When the operator 2 is further rotated, the contact 42a passes over the protrusion 32 of the insulator 4 and cuts off the electrical connection between the first terminal 12 and the third terminal 14, as shown in FIG. 4 (b). . That is, since the arm 33 that restricts the rotation of the insulator 4 comes into contact with the stopper 5b and stops the rotation in conjunction with the operator 2, the contact 41a of the movable contactor 22 that rotates together with the operator 2 is It will get over the protrusion 32. The clockwise rotation of the operator 2 will be described in correspondence with the automatic door lock system, which corresponds to the case where the door lock knob is pulled up or the door key is rotated in the unlocking direction.

Therefore, when the door key on the driver's seat side is rotated in the unlocking direction and the locking direction, or when the door lock knob is moved down and pulled up, this two-way switch responds to the rotation in both directions. All door locks can be locked and unlocked, and even in a keyless entry system that uses a remote control, etc., all other door locks can be locked and unlocked in response to the operation of the actuator on the driver side. Therefore, it can be used without requiring any special device.

[Effects of the Invention] As described above, according to the two-way switch of the present invention, the terminal portion having the first terminal, the second terminal, and the third terminal and the operator support shaft are fixed, and the two-way switch is provided. A movable contactor which is in contact with the third terminal and which is brought into contact with and separated from the first terminal and the second terminal according to the rotation of the operator support shaft, and is concentric with the operator support shaft between the terminal portion and the movable contactor. Is rotatably disposed to block the conduction of the first terminal or the second terminal, and only when the unidirectional rotation is performed, the first terminal and the second terminal are electrically conducted via the movable contactor. And made of an insulating material that forms a conductive region that electrically connects the second terminal and the third terminal via the movable contactor only when the second terminal is rotated in the other direction. An insulator, a pair of stoppers that abut on an arm provided on the insulator to restrict rotation of the insulator, and integrally rotate the insulator and the movable contactor in a rotation range of the insulator,
By providing the insulator rotating means for sliding between the insulator and the movable contactor when the rotation range is exceeded, different operations are performed on the forward path and the return path of the movable contactor according to the rotation of the operator. System can be operated, especially when used in an automatic door lock system, etc., all other doors can be locked and unlocked when the lock knob or door key on the driver's side is operated. In addition, even in the case of a keyless entry system that locks and unlocks all doors from the outside with a remote control etc., all other doors can be locked and locked by operating the actuator on the driver's side by operating the actuator. An excellent effect that unlocking can be performed is obtained.

[Brief description of drawings]

FIG. 1 is an exploded perspective view for explaining the structure of a two-way switch according to an embodiment of the present invention, FIG. 2 is a plan view of the two-way switch, FIG. 3 is a sectional view taken along the line AA of FIG. 4 (a),
(B), (c), (d), (e), (f), (g),
(H) is an operation explanatory view of the two-way switch, FIG. 5 is an exploded perspective view explaining the structure of the conventional one-way switch, and FIGS. 6 (a), (b), (c), (d), ( e) is an operation explanatory view of the one-way switch. 3 ... Operator support shaft, 4 ... Insulator, 5a, 5b ... Stopper, 10 ... Terminal part, 12 ... First terminal, 13 ... Second
Terminal, 14 ... Third terminal, 22 ... Movable contactor, R ... Insulator rotating means, l ... Conductive region.

Claims (1)

[Claims] 1. A terminal portion having a first terminal, a second terminal and a third terminal and a manipulator support shaft, which is fixed to the manipulator support shaft so as to be in contact with the third terminal and to rotate the manipulator support shaft. And a movable contactor that comes into contact with and separates from the first terminal and the second terminal, and is rotatably disposed concentrically with the operator support shaft between the terminal portion and the movable contactor. The terminal is disconnected from conduction, and the first terminal and the third terminal are electrically connected via the movable contactor only when the terminal rotates in one direction, and the second terminal only when the terminal rotates in the other direction. An insulator made of an insulating material that forms a conduction region that electrically connects the third terminal via the movable contactor and an arm provided on the insulator are in contact with each other. A pair of stoppers that regulate the rotation of the insulator and the insulator and the movable contactor are integrally rotated within the rotation range of the insulator, and when the rotation range is exceeded, the gap between the insulator and the movable contactor is increased. A two-way switch, comprising: an insulator rotating means for giving a sliding force to the user.