JPH083633Y2 - Door lock operating device for automobiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a neutral return type automobile door lock in which the door lock can be locked and unlocked by a forward and reverse rotatable motor. Regarding the operation device.

[Conventional technology]

A conventional neutral return type vehicle door lock operating device of this type is disclosed, for example, in Japanese Utility Model Publication No. 58-9953.

In this device, a door lock and an electric actuator that forms a driving unit are arranged at separate positions, and a control circuit outputs a signal proportional to the rotation angle of an output shaft to a reduction device that reduces the rotational force of a motor. Is equipped with a potentiometer to send to the output lever that rotates together with the output shaft,
One end of the rod is rotatably connected, and the other end of the rod is connected to the output lever of the reduction gear from the neutral position through a play equivalent to the stroke obtained at the rotation angle set in the locking direction or the unlocking direction. , The door lock operation lever is connected, and the door lock operation lever can be locked and unlocked by rotating the motor.

Based on the signal from the potentiometer, the control circuit rotates the output lever from the neutral position of the output shaft of the speed reducer to both forward and reverse rotations on both sides of the neutral position so as to make a movement equivalent to the stroke of the operating lever. By rotating the output lever backward after the set stroke operation and controlling so as to always return to the neutral position, the operation of the manual operation from the operation knob side provided in the vehicle interior is prevented from being transmitted to the speed reducer. It enables light manual operation.

[Problems to be solved by the device]

In the conventional device as described above, in order not to transmit the operation from the operation knob side to the output lever, the output lever of the actuator can be returned to the neutral position after the operation, and the output lever and the locking / unlocking can be performed. Since the relationship with the lever is refused by play, the position of the output lever can be detected by a potentiometer,
The position of the locking / unlocking lever cannot be detected.

Therefore, for example, when the operation switch is operated even when the locking / unlocking lever is in the locking position, or in the case of a vehicle provided with a speed detection device for locking the door lock according to the speed of the vehicle, the motor is When a current flows, the motor rotates regardless of the actual locking and unlocking operation, which causes unnecessary motor operating noise, and the locking / unlocking state of the locking / unlocking lever cannot be monitored. There is.

As a solution to this problem, install a detection switch that detects the locked / unlocked state of the locking / unlocking lever within the moving range of the locking / unlocking lever on the door lock, separately from the potentiometer that detects the position of the output lever. Can be considered.

However, in this case, a potentiometer for detecting the neutral position of the output lever on the actuator side and a detection switch for detecting the locking / unlocking position on the door lock side, which are arranged in separate places, respectively, are required. The number of electrical components such as connectors increases, and the work of mounting them becomes complicated.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to simplify the structure and reduce the number of parts, and also to provide electrical components such as harnesses and connectors. It is an object of the present invention to provide a vehicle door lock operating device capable of reducing the number of mounting steps and being inexpensive and capable of detecting the neutral position of the output lever and the locking / unlocking position of the locking / unlocking lever.

[Means for solving the problem]

In order to achieve the above-mentioned object, the device of the present invention can rotate the output lever in the locking direction and the unlocking direction from the neutral position through the reduction mechanism by the motor capable of rotating in the forward and reverse directions. And by means of a neutral return type actuator adapted to rotate the output lever to return to a neutral position, a door lock locking / unlocking lever, in a vehicle door lock operating device capable of moving to a locking position and an unlocking position, In the actuator, when the locking / unlocking lever moves to a locking position and an unlocking position, a connecting lever connected to the locking / unlocking lever so as to move in association with the corresponding locking position and unlocking position, A neutral detection switch for detecting a neutral position of the output lever, a lock detection switch for detecting a locked position and an unlocked position of the connecting lever, and an unlock detection It is characterized by having a switch and.

[Action]

When the output lever is in the neutral position, the output lever is rotated in the locking direction or the unlocking direction through the reduction mechanism by the motor rotating in the forward or reverse direction, and the locking / unlocking lever and the connecting lever of the door lock are locked. Move to position or unlock position.

When the locking or unlocking position of the connecting lever is detected by the locking detection switch or the unlocking detection switch, the motor is reverse-controlled and the output lever is rotated to return to the neutral position, and the neutral position detection switch detects the neutral position. Stop.

After that, even if the locking / unlocking lever of the door lock is operated by manual operation, the connecting lever is operated accordingly,
The position can be detected by the lock detection switch or the unlock detection switch.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

(1) is a door lock main body provided in a door, and a meshing mechanism section (2) that accommodates a striker (not shown) provided on the vehicle body side, a latch that engages and disengages with a striker (both not shown), and the like. ) And an operation mechanism section (3) accommodating a lever group for controlling and operating the meshing mechanism section (2).

(4) is a locking / unlocking lever which is one of a group of levers rotatably supported by the operation mechanism section (3), and one end of which is a locking / unlocking for manual operation arranged inside the door of the passenger compartment. It is connected to the knob (5) via a rod (6), and the other end is also connected to a key lever (7) pivotally supported on the door lock body (1) and has a central portion. A driven portion (4a) extending downward is formed.

The key lever (7) has a holder (7
a) and a rod (not shown) rotatably connected to the holder (7a), and is connected to a key cylinder (not shown) arranged outside the door.

By manually operating the locking / unlocking knob (5) from the inside of the vehicle, or manually operating the key cylinder from the outside of the vehicle using the key plate, the locking / unlocking lever (4) releases the door provided inside and outside the vehicle. It can be moved to a locking position shown in FIG. 5 that disables a door opening operation of a handle (not shown) and an unlocking position shown in FIGS. 1 and 4 that also enables it.

(8) is a neutral return type actuator that moves the locking / unlocking lever (4) to a locking position and an unlocking position by driving a motor. The locking / unlocking lever (4) on the bracket (1a) of the door lock body (1). A well-known speed reduction mechanism (not shown in the drawings) that is fixed to the vicinity of the motor and has a case (9) that can rotate in the forward and reverse directions and a planetary gear that reduces the rotation of the motor (10). ) And are provided.

Reference numeral (11) is a connecting lever whose base portion is rotatably supported on the output shaft (11a) of the reduction mechanism, and the tip of which is a pin (4a) planted in the driven portion (4a) of the locking / unlocking lever (4). 4b) and can be moved to a locking position (shown in FIG. 5) and an unlocking position (shown in FIG. 4) corresponding to the locking position and the unlocking position of the locking / unlocking lever (4). it can.

(12) is an output lever whose base is pivotally supported by the output shaft (11a) so that it cannot rotate relative to the output shaft (11a), and its tip can engage with the side edge of the connecting lever (11) in the circumferential direction. An engaging protrusion (12a) is formed.

This output lever (12) is shown in FIG. 1 through the speed reducing mechanism by the rotation of the motor (10) by the locking / unlocking operation switch provided inside and outside the vehicle from the neutral position shown in FIGS. 1 and 4. It is possible to rotate in a locking direction that is a clockwise direction and an unlocking direction that is a counterclockwise direction, and by this rotation in the locking direction or the unlocking direction, the engaging protrusion (12a) is connected to the connecting lever (11). The connection lever (11) and the locking / unlocking lever (4) can be moved to the locking position or the unlocking position by contacting one side edge or the side edge.

(13) is an output shaft (11) on a non-conductive plate (9a) fixed on the case (9) of the actuator (8).
a) A ring-shaped power supply terminal arranged around
It is connected to the power supply side via a harness.

(14) is a conductor neutral detection terminal fixed to a position corresponding to the neutral position of the output lever (12) outside the power supply terminal (13) and connected to the neutral detection circuit of the control circuit. ing.

(15) is a neutral detection connector fixed to the lower surface of the tip of the output lever (12), which can always contact the power supply terminal (13) and detects the neutral position when the output lever (12) is in the neutral position. The terminal (14) can be contacted.

The neutral detection connector (15) and the neutral detection terminal (14) constitute a neutral detection switch (16) capable of detecting the neutral position of the output lever (12), and as the output lever (12) rotates, The neutral detection connector (15) slides on the power supply terminal (13) in the circumferential direction thereof, and at the neutral position of the output lever (12), the neutral detection connector (15) contacts the neutral detection terminal (14). As a result, the power supply terminal (13) and the neutral detection terminal (14) are energized, that is, the neutral detection switch (1
6) is turned on and the neutral position of the output lever (12) can be detected.

(17) and (18) are a lock detection terminal and a lock detection terminal which are arranged inside the power supply terminal (13) and at positions corresponding to the locked position and the unlocked position of the connecting lever (11). , And are connected to the lock detection circuit and the unlock detection circuit of the control circuit, respectively.

(19) is a locking / unlocking detection connector fixed to the lower surface of the tip of the connecting lever (11), which can be always contacted with the power supply connector (13) and when the connecting lever (11) is in the unlocked position, The unlocking detection terminal (17) can be contacted, and when it is also in the locking position, the unlocking detection terminal (18) can be contacted.

The locking / unlocking detection connector (19) and the locking / locking detection terminal (17) detect a locking position of the locking / unlocking lever (4), and a locking / unlocking detection connector (19) and unlocking detection. Depending on the terminal (18)
An unlocking detection switch (21) for detecting the unlocking position of the locking / unlocking lever (4) is configured, respectively.

With the locking / unlocking movement of the connecting lever (11), the locking / unlocking detection connector (19) slidably contacts the power supply terminal (13) in the circumferential direction, and at the locking position of the connecting lever (11), the locking / unlocking detection is performed. When the connector (19) contacts the unlock detection terminal (17), the power supply terminal (13)
And the unlock detection terminal (17) are energized, and the lock detection switch (20) is turned on.

Further, at the unlocked position of the connecting lever (11), the locking / unlocking detection connector (19) contacts the locking detection terminal (18), so that the power feeding terminal (13) and the unlocking detection terminal (18) are in the energized state. Then, the unlocking detection switch (21) is turned on, and the locked position and the unlocked position of the locking and unlocking lever (4) can be detected.

 Next, the operation of the above embodiment will be described.

As shown in Fig. 1, when the output lever (12) is in the neutral position, the locking / unlocking lever (4) is locked or unlocked by manually operating the locking / unlocking knob (5). Alternatively, the connecting lever (11) moves to the unlocked position, and the coupling lever (11) moves in conjunction with the locked position or the unlocked position without interfering with the output lever (12).

By this movement, the locking / unlocking detection connector (19) arranged on the connecting lever (11) contacts the locking detection terminal (17) or the unlocking detection terminal (18) side, and the locking detection switch (20) or unlocking The lock detection switch (21) is turned on and can detect each state.

Similarly, as shown in FIG. 1, when the output lever (12) is in the neutral position and the locking / unlocking switch provided inside the vehicle compartment is operated to lock, the motor (10) moves in a predetermined forward direction. The output lever (12) rotates counterclockwise from the neutral position via the speed reduction mechanism, and the engaging projection (12a) of the output lever (12) is connected, as shown in FIG. The locking / unlocking lever (4) is connected to the right side edge (in FIGS. 4 and 5) of the lever (11) to move the connecting lever (11) from the unlocked position to the locked position. With the operation of (11), it operates in the locked position.

Immediately thereafter, the lock detection switch (20) detects the locked position of the connecting lever (11), the motor (10) is reversely controlled, and the output lever (12) reverses and returns to the neutral position and rotates. , When the neutral detection connector (15) contacts the neutral detection terminal (14), the neutral detection switch (16) turns on, the rotation of the motor (10) stops, and the output lever (12) stops at the neutral position. To do.

When the lock / unlock operation switch is unlocked, the motor (10) rotates in the reverse direction, and the output lever (12) rotates clockwise from the neutral position in FIG. 1 via the speed reduction mechanism. , The engaging protrusion (12a) of the output lever (12) is located on the left side edge of the connecting lever (11) (in FIGS. 4 and 5).
When the connecting lever (11) is actuated to the unlocking position shown in FIG. 4, the locking / unlocking lever (4) moves to the unlocking position as the connecting lever (11) operates.

Immediately after that, the unlocking detection switch (21) detects the unlocking position of the connecting lever (11), so that the motor (1
0) is controlled to rotate in the normal direction, the output lever (12) reverses and rotates back to the neutral position, and when the neutral detection switch (16) detects the neutral position, the rotation of the motor (10) stops and the output is output. The lever (12) stops in the neutral position.

[Other Examples]

FIG. 6 shows another embodiment, in which the neutral detection switch (16) and the lock detection switch (2) which have the same structure as the above embodiment.
0), the unlock detection switch (21) is housed in the recess (9a) of the case (9), and the recess (9a) is a disc-shaped member that rotates integrally with the connecting lever (11). Lid (9
b) and a seal member (22) fixed to the case (9) and having a lid (9b) rotatably fitted therein, thereby closing the contact portion of the switch to obtain a waterproof effect. Is.

[Effect of device]

According to the present invention, in the neutral return type actuator, since the lock / unlock state of the door lock can detect the position of the connecting lever connected to the lock / unlock lever by the lock / unlock detection switch, unnecessary motor operation can be prevented. No operating noise is produced.

In addition, since all the detection switches of the lock / unlock detection switch and the neutral detection switch that detects the neutral position of the output lever are arranged on the actuator side, the installation of electrical equipment such as harnesses and connectors is simplified, and workability is improved. It is possible to improve the cost and thus reduce the cost.

[Brief description of drawings]

The drawings show an embodiment of the device of the present invention. Fig. 1 is a front view of a door lock in an unlocked state, Fig. 2 is a perspective view thereof, and Fig. 3 is a main part III in Fig. 1. -III line sectional view, FIG. 4 is a rear view of the main part showing the unlocked state as viewed from the direction of the arrow in FIG. 2, and FIG. 5 is the main part showing the locked state similar to FIG. FIG. 6 is a rear view and FIG. 6 is a sectional view of the same portion as FIG. 3 showing another embodiment. (1) Door lock body, (4) Locking / unlocking lever (8) Actuator, (9) Case (10) Motor, (11) Connecting lever (11a) Output shaft, (12) Output lever (13) Power supply terminal, ( 14) Neutral detection terminal (15) Neutral detection connector, (16) Neutral detection switch (17) Lock detection terminal, (18) Unlock detection terminal (19) Lock and unlock detection connector, (20) Lock detection switch (21) Unlock Lock detection switch

Claims (1)

[Scope of utility model registration request] 1. A motor capable of rotating in forward and reverse directions can rotate an output lever in a locking direction and an unlocking direction with a deceleration mechanism as a boundary at a neutral position, and the output lever can be moved to a neutral position. In a vehicle door lock operating device in which a locking / unlocking lever of a door lock can be moved to a locking position and an unlocking position by a neutral return type actuator configured to return and rotate, the actuator includes the locking / unlocking lever. By moving to the locking position and the unlocking position, the connecting lever connected to the locking and unlocking lever so as to move in association with the locking position and the unlocking position corresponding thereto, and the neutral position of the output lever. A neutral detection switch for detecting, and a lock detection switch and an unlock detection switch for detecting a locked position and an unlocked position of the connecting lever are provided. Automotive door lock of the operating device to be.