JP2022034090A - Door lock device - Google Patents

Abstract

To add a small super-lock mechanism with a simple configuration.SOLUTION: A door latch device 2 includes: a fork 3 rotating between an open position and a latch position and holding a striker 1 at the latch position; a claw lever 4 rotating between a holding position for holding the fork 3 at the latch position and an un-holding position for allowing fork 3 to rotate; a closing lever 5 rotating between an unlock position away from the fork 3 and a lock position for allowing the fork 3 to rotate to the latch position; and a closure mechanism 16 rotating the closing lever 5 for the positioning thereof from the unlock position to the lock position. A control unit 6 drives and controls the closure mechanism 16 based on a predetermined input signal to rotate and position the closing lever 5 at the lock position, thereby holding the fork 3 at the latch position.SELECTED DRAWING: Figure 1

Description

The present invention relates to a door lock device.

As a mechanism for holding the swing-type side door of the vehicle in a closed state with respect to the vehicle body, a door lock device equipped with a mechanism called an electric latch (E-latch) that releases the holding of the door by the driving force of a motor is provided. It is known (see, for example, Patent Document 1).

The door lock device includes a fork that holds the striker of the vehicle body, a claw lever that engages with the fork, a motor that operates the claw lever, and a closure mechanism that operates the fork. By driving the motor, the claw lever can be disengaged from the fork and the door can be opened. Further, when the door is closed to the half-latch position, the closure mechanism can rotate the fork to the latch position to close the door.

However, in the conventional door lock device, when the power supply from the battery is stopped, the door cannot be opened. This is extremely dangerous if people are left behind in the car.

Further, in the conventional door lock device, when adding an anti-theft function that makes it impossible to open the latch even if the lock knob or the inner handle in the vehicle is illegally operated, it is necessary to separately provide a super lock mechanism. Will increase.

International Patent Publication No. 2016/147553

An object of the present invention is to provide a small door lock device to which a super lock mechanism can be added with a simple configuration.

The present invention is provided as a means for solving the above-mentioned problems, a striker provided on either a vehicle body or a door for opening and closing an opening of the vehicle body, and the striker provided on the door or the remaining other side of the vehicle body. The door latch device is provided with a door latch device that engages and holds the door in the closed position, and a control unit that drives and controls the door latch device. The door latch device rotates to an open position and a latch position, and the striker is provided at the latch position. The fork that holds the fork, the holding position that holds the fork in the latch position, the claw lever that rotates to the non-holding position that makes the fork rotatable, the unlock position away from the fork, and the fork. The control unit includes a close lever that can rotate to a lock position that rotates to a latch position, and a closure mechanism that rotates the close lever from the unlock position to the lock position to position it, and the control unit is based on a predetermined input signal. Provided is a door lock device that holds the fork in the latch position by driving and controlling the closure mechanism and rotating the close lever to the lock position for positioning.

With this configuration, the super lock mechanism can be configured by using the existing close lever and closure mechanism. As a result, the number of parts can be reduced and the size can be reduced.

It is preferable to further include an inner handle that rotates the claw lever to the holding position and the non-holding position.

With this configuration, even when the power supplied from the battery to the door latch device is stopped, the door can be opened from the inside of the vehicle by operating the inner handle. Further, in the super-locked state in which the fork is held at the latch position by the close lever, the operation of the inner handle can be invalidated to prevent unauthorized opening for the purpose of theft or the like.

A release mechanism for rotating the claw lever from the holding position to the non-holding position is further provided, and the control unit drives and controls the release mechanism based on the release signal to move the claw lever from the holding position. It is preferable to rotate it to the non-holding position.

With this configuration, the door can be easily opened from the closed state by simply adding a release mechanism to the existing configuration for rotating the claw lever.

According to the present invention, a small super lock mechanism can be added with a simple configuration.

It is a schematic explanatory drawing of the door lock device which concerns on this embodiment. It is a flowchart which shows the door closing operation executed by the control part of FIG. It is a flowchart which shows the super lock operation executed by the control part of FIG. It is a flowchart which shows the super lock release operation executed by the control part of FIG. It is a figure which shows the state which the fork of FIG. 1 is rotated to the half latch position. FIG. 5 is a diagram showing a state in which the close lever is rotated to the locked position from FIG. FIG. 6 is a diagram showing a state in which the close lever is rotated to the unlocked position from FIG. FIG. 5 is a diagram showing a state in which the close lever is maintained in the locked position and the claw lever is rotated in the non-holding position from FIG.

Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings. It should be noted that the following description is merely an example and is not intended to limit the present invention, its application, or its use.

As shown in FIG. 1, the door lock device according to the present embodiment roughly includes a striker 1 provided on the vehicle body 100 side and a door latch device 2 provided on the door 101 side. The door latch device 2 includes a fork 3, a claw lever 4, and a close lever 5 rotatably supported by the support plate 102, and the striker 1 is engaged with and detached from the fork 3. The claw lever 4 and the close lever 5 are rotated by the release mechanism 15 and the closure mechanism 16 described later. The release mechanism 15 and the closure mechanism 16 are driven and controlled by the control unit 6.

The fork 3 has a substantially U-shape in a plan view, and is attached to the support plate 102 so as to be rotatable forward and backward about the support shaft 3a. The portion formed by bifurcating the tip end side of the fork 3 is a locking groove 7 for holding the striker 1. A locking receiving portion 9 is formed on the outer edge of the tip of one of the arm portions 8 on both sides constituting the locking groove 7. The inner edge of the tip of the other arm portion 8b is a contact receiving portion 10. Further, a pressing member 11 is fixed to the fork 3 on the side opposite to both arm portions 8 with respect to the support shaft 3a. The pressing receiving member 11 is composed of a pressing receiving portion 11a whose outer edge is partially formed in an arc shape. The fork 3 is urged clockwise in the drawing by a spring (not shown) so that it can rotate to the unlatch position shown in FIG. 1, the half latch position shown in FIG. 5, and the latch position shown in FIG. There is. When the fork 3 is located at the unlatch position, the door 101 is open with respect to the vehicle body 100. When the fork 3 is located at the half-latch position, the door 101 is in a half-door state with respect to the vehicle body 100. When the fork 3 is located at the latch position, the door 101 is closed with respect to the vehicle body 100.

The claw lever 4 has a substantially I-shape in a plan view, and is attached to a support plate 102 so as to be rotatable forward and backward around a support shaft 4a. On one end side of the claw lever 4, a locking contact portion 12 that engages with and disengages from the locking receiving portion 9 of the fork 3 and abuts on the contact receiving portion 10 is formed. The claw lever 4 is rotatable between the holding position shown in FIG. 6 and the non-holding position shown in FIG. The claw lever 4 is urged in the counterclockwise direction about a support shaft in the drawing by a spring (not shown). If the claw lever 4 rotates to the holding position while the fork 3 is rotating to the latch position, the locking contact portion 12 of the closing lever 5 is locked to the locking receiving portion 9 of the fork 3, and the fork 3 Is positioned at the latch position. Further, if the claw lever 4 is rotated to the holding position while the fork 3 is rotated to the half latch position, the locking contact portion 12 of the claw lever 4 comes into contact with the contact receiving portion 10 of the fork 3, and the fork 3 is positioned at the half latch position.

A transmission mechanism 13 is connected to the other end of the claw lever 4. Although not shown in detail, the transmission mechanism 13 may be composed of a plurality of known levers or the like arranged in the door latch device 2. A wire extending from the inner handle 14 is connected to the driven lever constituting the transmission mechanism 13. As a result, when the inner handle 14 is operated, the claw lever 4 can be rotated from the holding position to the non-holding position via the transmission mechanism 13. Further, a release mechanism 15 is connected to a lever constituting the transmission mechanism 13. The release mechanism 15 is arranged in the door latch device 2 and includes a driving member such as a motor that is driven based on a control signal from the control unit 6. By driving the drive member, the claw lever 4 can be rotated from the holding position to the non-holding position via the transmission mechanism 13.

The close lever 5 has a plan-viewing fan shape and is attached to the support plate 102 so as to be rotatable forward and backward about the support shaft 5a. One end side of the close lever 5 in the circumferential direction is a pressing portion 5b protruding in an arc shape. A wire extending to the closure mechanism 16 is connected to the other end of the close lever 5 in the circumferential direction. The closure mechanism 16 is provided at a position away from the door latch device 2. The closure mechanism 16 includes a drive member such as a motor, and pulls or loosens the wire by driving the drive member based on a control signal from the control unit 6. As the closure mechanism 16, for example, an actuator including a motor and a wire winding mechanism operated by driving the motor can be used. When the wire is pulled by the closure mechanism 16, the close lever 5 can rotate from the unlock position shown in FIG. 5 to the lock position shown in FIG. The close lever 5 is urged in the counterclockwise direction in the drawing around the support shaft 5a by a spring (not shown).

The striker 1 is fixed to the vehicle body 100 side and has a U-shaped portion protruding. When the door 101 is closed with respect to the vehicle body 100, the U-shaped portion of the striker 1 invades the locking groove 7 of the fork 3 so that the door 101 can be maintained in the closed state.

The control unit 6 is a handle switch 17 (or a sensor) provided on an outer handle (not shown) attached to the outer surface of the door 101, a fork switch 18 (or a sensor) for detecting the rotation position of the fork 3, or a portable device. The release mechanism 15 and the closure mechanism 16 are driven and controlled based on the input signal from 19.

Next, the operation of the door lock device having the above configuration will be described.

(Door opening operation)
When opening the closed door 101 from the outside of the vehicle, the handle switch 17 of the outer handle is operated. By operating the handle switch 17, an operation signal (release signal) is output to the control unit 6. The control unit 6 drives the release mechanism 15 based on the input operation signal, and rotates the claw lever 4 from the holding position to the non-holding position. As a result, the locking contact portion 12 of the claw lever 4 falls off from the locking receiving portion 9 of the fork 3. The fork 3 is rotated from the latch position to the unlatch position via the half-latch position by the urging force of the spring, and the door 101 is opened.

When opening the closed door 101 from the inside of the vehicle, the inner handle 14 is operated. By operating the inner handle 14, the claw lever 4 rotates from the holding position to the non-holding position via the transmission mechanism 13. As described above, the rotation of the claw lever 4 causes the locking contact portion 12 of the claw lever 4 to fall off from the locking receiving portion 9 of the fork 3, the fork 3 to rotate to the unlatch position, and the door 101 to be opened. According to this, even when the power supply from the battery (not shown) is stopped, the door 101 can be opened by operating the inner handle 14.

(Door closing operation)
When the door 101 is closed from the open state, the striker 1 enters the locking groove 7 of the fork 3, and the fork 3 rotates from the unlatch position to the half-latch position. As shown in the flowchart of FIG. 2, the control unit 6 drives and controls the closure mechanism 16 when the fork switch 18 detects that the rotation position of the fork 3 is the half latch position shown in FIG. 5 (step S1). Then, the close lever 5 is rotated from the unlock position shown in FIG. 5 to the lock position shown in FIG. 6 (step S2). By the rotation of the close lever 5, the pressing portion 5b of the closing lever 5 presses the pressing receiving portion 11a of the pressing receiving member 11 fixed to the fork 3, and the fork 3 moves from the half latch position shown in FIG. 5 to the latch position shown in FIG. Rotate to. The fork 3 rotated to the latch position engages with the locking contact portion 12 of the claw lever 4 located at the holding position and is positioned at the latch position, and the door 101 is held in the closed state. When the fork switch 18 detects that the fork 3 has rotated to the latch position (step S3), the power supply to the drive member of the closure mechanism 16 is stopped (step S4). When the pulling force of the closure mechanism 16 disappears, the closing lever 5 rotates from the locked position to the unlocked position by the urging force of the spring.

(Super lock operation)
When the door 101 is closed and the door 101 cannot be opened even if the inner handle or the like in the vehicle is illegally operated, the portable device 19 is operated and the super lock signal is input to the control unit 6. do. As shown in the flowchart of FIG. 3, the control unit 6 drives and controls the closure mechanism 16 based on the input of the super lock signal (step S11), and locks the close lever 5 via the wire to the unlock position shown in FIG. 7. Is rotated to the lock position shown in FIG. 6 (step S12). By rotating the close lever 5 to the locked position, the pressing portion 5b of the closing lever 5 comes into contact with the pressing receiving portion 11a of the fork 3, and the fork 3 is held (positioned) at the latch position. As a result, even if the inner handle 14 and the transmission mechanism 13 are illegally operated and the claw lever 4 rotates from the holding position to the non-holding position as shown in FIG. 8, the fork 3 is prevented from rotating by the closing lever 5. It remains positioned in the latch position. Therefore, the door 101 cannot be opened illegally.

(Super unlock operation)
When releasing the super lock state, the portable device 19 is operated and a super lock release signal is input to the control unit 6. As shown in the flowchart of FIG. 4, the control unit 6 drives and controls the closure mechanism 16 based on the input of the super lock release signal (step S21), and loosens the wire (step S22). When the wire is loosened, the closing lever 5 is rotated from the locked position shown in FIG. 6 to the unlocked position shown in FIG. 7 by the urging force of the spring. As a result, the holding of the fork 3 by the close lever 5 is released, and the super lock state is released.

As described above, according to the door lock device according to the embodiment, the simple configuration is such that the rotation positions of the claw lever 4 and the close lever 5 are changed with respect to the fork 3. Therefore, the configuration of the door lock device does not become large.

The door latch device of the present invention is not limited to the configuration of the above embodiment, and various modifications can be made.

In the above embodiment, the closure mechanism 16 is provided at a position away from the door latch device 2, but it may be provided inside the door latch device 2. In this case, the transmission of the driving force from the closure mechanism 16 to the closing lever 5 may use a plurality of levers instead of the wires.

In the above embodiment, the control unit 6 executes the super lock operation based on the input signal from the portable device 19, that is, the super lock signal, but the input signal is not limited to this.
For example, a sensor (seating sensor, etc.) for detecting whether or not a person is in the vehicle is provided, and when the control unit 6 determines that there is no person in the vehicle based on the input signal from this sensor, the super lock is provided. The operation may be performed.
Further, the super lock operation may be executed based on the input signal from the handle switch 17 provided on the outer handle.
In this way, the input signal for starting the super lock operation can be freely set according to the specifications.

In the above embodiment, the striker 1 is provided on the vehicle body 100 side and the door latch device 2 is provided on the door 101 side. However, the door latch device 2 may be provided on the vehicle body 100 side and the striker 1 may be provided on the door 101 side. good.

In the above embodiment, the outer handle is provided with a handle switch 17 for detecting a physical pushing operation, but instead, another sensor for detecting hand contact, approach, or gesture is provided. You may.

1 ... Striker 2 ... Door latch device 3 ... Fork 4 ... Claw lever 5 ... Close lever 6 ... Control unit 7 ... Locking groove 8 ... Arm 9 ... Locking receiving part 10 ... Contact receiving part 11 ... Press receiving member 12 ... Stop contact part 13 ... Transmission mechanism 14 ... Inner handle 15 ... Release mechanism 16 ... Closure mechanism 17 ... Handle switch 18 ... Fork switch 19 ... Portable device 100 ... Body 101 ... Door 102 ... Support plate

Claims (3)

A striker provided on either the vehicle body or the door that opens and closes the opening of the vehicle body,
A door latching device provided on the door or the remaining other side of the vehicle body that engages with the striker and holds the door in a closed position.
A control unit that drives and controls the door latch device,
Equipped with
The door latch device is
With a fork that rotates to the open position and the latch position and holds the striker in the latch position,
A holding position that holds the fork in the latch position, and a claw lever that rotates in a non-holding position that makes the fork rotatable.
An unlock position away from the fork and a close lever that can rotate to the lock position that rotates the fork to the latch position.
A closure mechanism for positioning the closed lever by rotating it from the unlocked position to the locked position,
Equipped with
The control unit is a door lock device that holds the fork in the latch position by driving and controlling the closure mechanism based on a predetermined input signal and rotating the close lever to the lock position for positioning. The door lock device according to claim 1, further comprising an inner handle for rotating the claw lever to the holding position and the non-holding position. Further provided with a release mechanism for rotating the claw lever from the holding position to the non-holding position.
The door lock device according to claim 1 or 2, wherein the control unit rotates the claw lever from the holding position to the non-holding position by driving and controlling the release mechanism based on the release signal.

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