JPH0521069U - Vehicle door lock device - Google Patents

Abstract

(57) [Summary] [Purpose] When the door is opened during closing, the closer motor does not overrun and the door can be closed again smoothly. [Constitution] If the door is opened during closing, the connection terminal 4
1 is cut off from the body side, and the closer motor 1 serves as a generator and rotates inertially while supplying current to the relay coil 22 as shown by the solid arrow in the figure. When the cam reaches its original position, the cam contact 31 is opened, the relay coil is de-energized, the relay contact 21 is switched (the chain line in the figure), and the closer motor is short-circuited between the energized terminals and rapidly stopped.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door lock device for a vehicle, and more particularly to a door lock device provided with a closer motor for rotating a latch from a half lock position to a full lock position.

[0002]

[Prior Art]

 In recent years, closer motors have been installed to make the sliding door lock operation smooth with a light touch, which detects that the ratchet that receives and engages the striker has rotated to the half lock position. The closer motor starts to operate and the latch is rotated to the full lock position by the cam plate.

[0003]

[Problems to be solved by the device]

 By the way, in such a door lock device, the user may reconsider trying to close the door and then open the door again. In this case, the closer motor rotates in the reverse direction so that the door can be opened.However, opening the door interrupts the wiring between the motor and the control circuit on the body side that controls the rotation of the closer motor, so the motor is not controlled. As a result, inertia may cause overrun beyond the original position of the cam plate where it should stop. When such an overrun occurs, the latch may be rotated again in the locking direction from the unlock position by the cam plate, and the end of the latch may project into the striker's entry trajectory to prevent the door from being closed again.

The present invention solves such a problem, and provides a vehicle door lock device capable of smoothly reclosing a door without causing a cross motor to overrun when the door is reopened during closing. With the goal.

[0005]

[Means for Solving the Problems]

 The structure of the present invention will be described. A closer motor 1 provided on the door side that is rotated by electricity from a power source provided on the vehicle body side via connection terminals 41 and 42 that conducts when the door is closed, and a contact point when the coil 22 is not energized. 21 is closed to short-circuit the energizing terminals of the closer motor 1; the first relay energizing circuit for shunting part of the energizing current to the closer motor 1 to energize the relay coil 22; and the door. The second relay energizing circuit and the second relay energizing circuit which energize the output current of the closer-rotating closer motor 1 to the relay coil 22 when the connection terminals 41, 42 are opened and become non-conductive. The cam plate, which is provided and rotationally driven by the closer motor 1, is provided with a contact 31 that opens when the cam plate returns to its original position.

[0006]

[Action]

 At the door closed position, the connection terminals 41, 42 are electrically connected and the closer motor 1 is energized and rotated. A part of the motor energizing current is supplied to the relay coil 22 by the first relay energizing circuit so that the energizing terminals of the closer motor 1 are maintained in a non-short-circuited state.

If the door is reopened during closing, the closer motor 1 reverses to allow the door to be opened. When the door is opened, the connection terminals 41, 42 become non-conductive and the energization of the closer motor 1 is canceled, but the motor 1 continues its reverse rotation due to inertia. At this time, the closer motor 1 is a generator, the output current of the closer motor 1 is supplied to the relay coil 22 by the second relay energizing circuit, and the non-short-circuit state between the energizing terminals of the motor 1 is prevented. Maintained.

When the cam plate returns to its original position due to the reverse rotation of the closer motor 1, the contact 31 of the second relay energizing circuit is opened, the energization of the relay coil 22 is canceled, and the relay contact 21 is closed. The close-up of the energizing terminals of the closer motor 1 causes the motor 1 to stop immediately. Thus, the cam plate is reliably returned to its original position without overrunning, so that the end of the latch can be retracted to a position where it does not prevent the striker from entering, and smooth reclosing of the door is possible.

[0009]

【Example】

 In FIG. 1, a closer motor 1 is provided on a door panel P1 of a vehicle, and the motor 1 rotates a door lock latch via a cam plate (not shown). One of the energizing terminals of the closer motor 1 is directly connected to the connecting terminal 41 via the energizing wire 12, and the other is connected to the connecting terminal 41 via the energizing wire 11 from the switching contact 21 of the relay 2.

The connection terminals 41 and 42 are in contact with each other when the door is in the closed position, and have four terminals, two of which are used for energizing the motor, and the control circuit 5 provided on the body panel P 2 is provided. The closer motor 1 is connected to the power supply or the ground via the switching contacts 51 and 52 of FIG. In the figure, the solid line shows the current direction during forward rotation, and the broken line shows the current direction during reverse rotation.

A cam contact 31 is provided on the door side, and the contact 31 opens when the cam plate returns to the original position. This opening signal is input to the control circuit 5 via the connection terminals 41 and 42, and the closer motor 1 is stopped and controlled. The door side is provided with a remote contact 32 and a half lock contact 33 that are connected in series with each other. The former opens when the door handle is pulled when the door is opened, and the latter opens when the latch is rotated to the half lock position by closing the door. Close. The signals from these contacts are input to the control circuit 5 via the connection terminals 41 and 42, and the control circuit 5 starts the reverse rotation of the closer motor 1 by the opening signal of the remote control contact 32 and closes the half lock contact 33. Starts rotation of closer motor 1.

One ends of the cam contact 31 and the remote control contact 32 are connected to each other, and are connected to the motor energizing wires 11 and 12 via diodes 65 and 66, respectively. The coil relay 22 has a high potential side connected to one of the motor energization lines 11 and 12 via diodes 61 and 62, and a low potential side to the cam contact 31 and the half lock contact 33 via diodes 63 and 64. It is connected.

In the door lock device having the above structure, the door is closed, the striker is advanced into the latch, and when the latch is rotated to the half lock position, the half lock contact 33 is closed. The switching contacts 51, 52 of the control circuit 5 operate as shown by the solid line in FIG. 1, and the current supplied from the power source reaches the relay coil 22 via the diode 61, and passes from the diode 63 to the half lock contact 33 and the cam contact 32 to the ground. Return to the relay energizing circuit (solid arrow in the figure). As a result, the relay contact 21 is actuated to the position shown by the solid line in the figure, and a forward rotation current flows to the closer motor 1 (the solid line arrow in the figure) to rotate the latch in the full lock direction. The cam contacts 31 close because the cam is out of its original position.

In this state, when the door is closed again and the door handle is pulled, the remote control contact 32 opens, and the control circuit 5 receiving this signal switches the switching contacts 51 and 52 to the states indicated by the broken lines in the figure. Current is supplied to the relay coil 21 through the diodes 62, 64, the cam contact 31 and the like by the relay energizing circuit shown by the broken line arrow in the figure, so that the relay contact 21 does not change the state of the solid line in the figure, A reverse current flows to the motor 1 (broken line arrow in the figure), and the latch is rotated in the unlock direction.

Here, when the door starts to open, the connection terminals 41 and 42 are separated and interrupted, which is shown in FIG. The closer motor 1 continues reversing due to inertia and becomes a generator whose output current passes through the relay contact 21, the diode 61, the relay coil 22, the diode 64, the cam contact 31, and the diode 66 shown by the solid line in the figure. It is supplied to the relay coil 22 by the relay energizing circuit returning to the closer motor 1.

When the closer motor 1 reversely rotates and the cam returns to the original position, the cam contact 31 is opened as shown in FIG. 3, the relay coil 22 is de-energized, and the coil contact 21 is switched as shown by the solid line in the figure. . As a result, the energizing terminals of the closer motor 1 are short-circuited, and the motor 1 is immediately stopped without causing overrun.

[0017]

[Effect of the device]

 As described above, according to the vehicle door lock device of the present invention, when the door is opened while the door is being closed, when the cam returns to the original position, the closer motor can be reliably stopped without overrun. Does not project into the striker's approach path, and the door can be closed again smoothly.

Further, according to the above-mentioned embodiment, it can be easily realized only by adding the diode and the relay to the conventional circuit.

[Brief description of drawings]

FIG. 1 is an overall circuit diagram of the device.

FIG. 2 is a device circuit diagram when a door is opened.

FIG. 3 is a device circuit diagram when a door is opened.

[Explanation of symbols]

1 Closer Motor 2 Relay 21 Relay Contact 22 Relay Coil 31 Cam Contact (Contact) 41, 42 Connection Terminal 61, 62, 63, 64 Diode (First and Second
Relay energizing circuit)

Claims (1)

[Scope of utility model registration request] 1. A closer motor provided on a door side which is rotated by electricity supplied from a power source provided on a vehicle body side through a connection terminal which is conducted when the door is closed, and a contact point of which is closed when the coil is not energized to energize the closer motor. A relay that short-circuits the terminals, a first relay energizing circuit that diverts a part of the energizing current to the closer motor to energize the relay coil, and a door is opened to disconnect the connection terminals. A second relay energizing circuit that energizes the output current of the closer-rotating closer motor to the relay coil, and a cam plate that is provided in the second relay energizing circuit and is rotationally driven by the closer motor to the original position. A vehicle door lock device having a contact that opens when returned.