WO2020137973A1

WO2020137973A1 - Door lock device

Info

Publication number: WO2020137973A1
Application number: PCT/JP2019/050363
Authority: WO
Inventors: 伸哉赤木; 浩平山崎
Original assignee: 株式会社ユーシン
Priority date: 2018-12-25
Filing date: 2019-12-23
Publication date: 2020-07-02
Also published as: JP2022034090A

Abstract

This door lock device comprises: a door 101 that opens and closes an opening in a vehicle body 100; a striker 1 provided to the door 101 and/or the vehicle body 100; a door latch device 2 provided to the other of the door 101 or the vehicle body 100, the door latch device 2 engaging with the striker 1 and holding the door 101 in a closed position; and a control unit 6 that drives and controls the door latch device 2. The door latch device 2 comprises: a fork 3 that rotates to an open position and a latched position, and holds the striker 1 in the latched position; a claw lever 4 that rotates to a holding position for holding the fork 3 in the latched position, and a non-holding position in which the fork 3 can rotate; a close lever 5 that can rotate to an unlocked position separated from the fork 3, and a locked position in which the fork 3 is rotated to the latched position; and a closure mechanism 16 that rotates and positions the close lever 5 from the unlocked position to the locked position. The control unit 6 drives and controls the closure mechanism 16 on the basis of a prescribed input signal, and rotates and positions the close lever 5 to the locked position, thereby holding the fork 3 in the latched position.

Description

Door lock device

The present invention relates to a door lock device.

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

The door lock device includes a fork that holds the striker of the vehicle body, a claw lever that engages the fork, a motor that operates the claw lever, and a closure mechanism that operates the fork. By driving the motor, the engagement of the claw lever with the fork can be released to open the door. Also, when the door is closed to the half-latch position, the closure mechanism allows the fork to rotate to the latched position to close the door.

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

Further, in the conventional door lock device, if a theft prevention function that prevents the latch from being opened even if the lock knob or the inner handle inside the vehicle is illegally operated, it is necessary to separately provide a super lock mechanism. Will increase.

International Patent Publication No. 2016/174753

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 structure.

The present invention, as a means for solving the above problems, a striker provided on either one of a vehicle body or a door that opens and closes an opening of the vehicle body, and a striker provided on the other of the door or the remaining vehicle body, A door latch device that engages and holds the door in a 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 at the latch position. A fork that holds the fork, a holding position that holds the fork in a latch position, a claw lever that rotates to a non-holding position that allows the fork to rotate, an unlock position that is separated from the fork, and the fork. The control unit includes a close lever rotatable to a latch position and rotatable to a lock position, and a closure mechanism configured to rotate the close lever from the unlock position to the lock position to position the control lever based on a predetermined input signal. A door lock device is provided which holds the fork in a latched position by driving and controlling the closure mechanism to rotate and position the close lever to a locked position.

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

Preferably, an inner handle for rotating the claw lever between the holding position and the non-holding position is further provided.

With this configuration, even if the power supply 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 lock state in which the fork is held at the latched 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 a release signal to move the claw lever from the holding position to the It is preferably rotated to the non-holding position.

With this configuration, you can easily open the door from the closed state by 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 structure.

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

Embodiments according to the present invention will be described below with reference to the accompanying drawings. Note that the following description is merely an example in essence, and is not intended to limit the present invention, its application, or its application.

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, which is rotatably supported by the support plate 102, a claw lever 4, and a close lever 5, and the striker 1 is disengaged from the fork 3. The claw lever 4 and the close lever 5 are rotated by a release mechanism 15 and a closure mechanism 16 described later. The release mechanism 15 and the closure mechanism 16 are drive-controlled by the control unit 6.

The fork 3 is substantially U-shaped in a plan view and is attached to the support plate 102 so as to be rotatable in the forward and reverse directions about the support shaft 3a. A portion formed by the fork 3 being divided into two forks is a locking groove 7 for holding the striker 1. A lock receiving portion 9 is formed on the outer edge of the distal end of one arm portion 8a among the arm portions 8 on both sides forming the locking groove 7. The inner edge of the tip of the other arm portion 8b serves as a contact receiving portion 10. A pressure receiving member 11 is fixed to the fork 3 on the opposite side of the support shaft 3a from the both arm portions 8. The pressure receiving member 11 is composed of a pressure receiving portion 11a whose outer edge is formed in an arc shape. The fork 3 is biased in the clockwise direction in the figure by a spring (not shown), and is rotatable 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 unlatched 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 is substantially I-shaped in a plan view, and is attached to the support plate 102 so as to be rotatable in the forward and reverse directions about the support shaft 4a. On one end side of the claw lever 4, there is formed a locking contact portion 12 that is engaged with and disengages from the locking receiving portion 9 of the fork 3 and contacts the contact receiving portion 10. 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 by a spring (not shown) in the counterclockwise direction about the support shaft in the figure. When 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 close lever 5 is locked to the locking receiving portion 9 of the fork 3, and the fork 3 is rotated. Are positioned in the latched position. If the claw lever 4 rotates to the holding position while the fork 3 is rotating to the half-latch position, the locking contact portion 12 of the claw lever 4 contacts the contact receiving portion 10 of the fork 3 and the fork 3 moves. 3 is positioned in the half-latch position.

A transmission mechanism 13 is connected to the other end of the claw lever 4. Although the transmission mechanism 13 is not shown in detail, it is possible to use a transmission mechanism that is configured in the door latch device 2 and that is configured by a plurality of known levers and the like. A wire extending from the inner handle 14 is connected to the driven lever that constitutes 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. A release mechanism 15 is connected to the lever that constitutes 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 driving member, the claw lever 4 can be rotated from the holding position to the non-holding position via the transmission mechanism 13.

The closing lever 5 has a fan shape in a plan view and is attached to the support plate 102 so as to be rotatable in the forward and reverse directions about the support shaft 5a. One end side of the closing 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 closing lever 5 in the circumferential direction. The closure mechanism 16 is provided at a position apart 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. For the closure mechanism 16, for example, an actuator including a motor and a wire winding mechanism that operates by its drive 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 biased counterclockwise in the figure about the support shaft 5a by a spring (not shown).

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

The control unit 6 includes a handlebar switch 17 (or sensor) provided on an outer handle (not shown) attached to the outer surface of the door 101, a fork switch 18 (or sensor) that detects the rotational position of the fork 3, or a portable device. The release mechanism 15 and the closure mechanism 16 are drive-controlled based on an input signal from 19.

Next, the operation of the door lock device configured as described above 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. An operation signal (release signal) is output to the control unit 6 by operating the handlebar switch 17. The control unit 6 drives the release mechanism 15 based on the input operation signal to rotate 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 biasing force of the spring, and the door 101 is opened.

When opening the closed door 101 from the inside of the vehicle, operate the inner handle 14. 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. The rotation of the claw lever 4 causes the locking contact portion 12 of the claw lever 4 to drop from the locking receiving portion 9 of the fork 3, the fork 3 rotates to the unlatch position, and the door 101 is opened. According to this, even if 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. In the control unit 6, when the fork switch 18 detects that the rotation position of the fork 3 is the half-latch position shown in FIG. 5 as shown in the flowchart of FIG. 2 (step S1), the closure mechanism 16 is driven and controlled. 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 closing 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 latched position is engaged with the locking abutment portion 12 of the claw lever 4 located in the holding position, is positioned in the latched 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 biasing force of the spring.

(Super lock operation)
When the door 101 is in the closed state and the door 101 is in the super lock state in which the door 101 cannot be opened even if the inner handle is illegally operated, the portable device 19 is operated and the super lock signal is input to the control unit 6. To 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 causes the close lever 5 to move the closing lever 5 to the unlock position shown in FIG. To the lock position shown in FIG. 6 (step S12). When the closing lever 5 is rotated to the lock position, the pressing portion 5b of the closing lever 5 contacts the pressing receiving portion 11a of the fork 3, and the fork 3 is held (positioned) at the latched 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. Remains in the latched position. Therefore, the door 101 cannot be illegally opened.

(Super unlock operation)
To release the super lock state, the portable device 19 is operated to input a super lock release signal 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 rotates from the locked position shown in FIG. 6 to the unlocked position shown in FIG. 7 by the biasing force of the spring. As a result, the holding of the fork 3 by the closing lever 5 is released, and the super locked state is released.

Thus, the door lock device according to the above-described embodiment has a simple configuration in which the rotational positions of the claw lever 4 and the close lever 5 are changed with respect to the fork 3. Therefore, the structure of the door lock device does not increase in size.

Note that 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 apart 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 wire.

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 an input signal from this sensor, the super lock is performed. The operation may be executed.
Further, the super lock operation may be executed based on an input signal from the handle switch 17 provided on the outer handle.
Thus, the input signal for starting the super lock operation can be freely set according to the specifications.

Although the striker 1 is provided on the vehicle body 100 side and the door latch device 2 is provided on the door 101 side in the above embodiment, 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-described embodiment, the handlebar switch 17 for detecting a physical pushing operation is provided on the outer handle, but instead of the handlebar switch 17, another sensor for detecting contact, approach, or gesture of the hand is provided. May be.

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

Claims

A striker provided on either the vehicle body or the door that opens and closes the opening of the vehicle body,
A door latch device provided on the other of the door or the other of the vehicle body, engaged with the striker, and holding the door in a closed position,
A control unit for driving and controlling the door latch device,
Equipped with
The door latch device,
A fork that rotates to an open position and a latch position and holds the striker at the latch position,
A holding position for holding the fork in a latched position, and a claw lever for rotating the fork in a non-holding position for free rotation,
An unlock position separated from the fork, and a close lever rotatable to a lock position for rotating the fork to a latch position,
A closure mechanism that positions the close lever by rotating it from the unlock position to the lock position,
Equipped with
A door lock device in which a controller holds the fork in a latched position by drivingly controlling the closure mechanism based on a predetermined input signal to rotate and position the close lever to a locked position.
The door lock device according to claim 1, further comprising an inner handle that rotates the claw lever between the holding position and the non-holding position.
Further comprising 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, wherein the control unit drives and controls the release mechanism based on a release signal to rotate the claw lever from the holding position to the non-holding position.