JP2516433B2 - Door lock device for automobile - Google Patents

Description

TECHNICAL FIELD The present invention relates to a vehicle door lock device including an override mechanism and a child proof mechanism.

[Conventional technology]

A conventional vehicle door lock device having an override mechanism is disclosed, for example, in Japanese Patent Publication No. Sho 58-4152.

This device interlocks with the interlocking position of the release lever that moves the locking lever in the unlocking direction directly or indirectly in conjunction with the inside lever that operates by releasing the inside handle provided inside the door. When the lock lever is in the lock position and the release lever is in the interlocked position, the open lever can be operated to open the door and the lock lever can be opened. It is possible to operate the override mechanism that can move the lock from the locked position to the unlocked position, and when the release lever is in the non-interlocking position, disable the operation of the override mechanism and release the inside handle. The door opening operation can be disabled by.

[Problems to be Solved by the Invention]

In the conventional device described above, when the locking lever is in the unlocked position, the door can be always opened by releasing the inside handle on the inside of the vehicle. Doors other than doors, that is, doors such as the passenger side door, can be opened by not only adults but also children, so there is a danger that children will open the door unexpectedly due to mischief. There is a problem that it is not suitable for other doors other than the side door.

The present invention has been made in view of the above problems, and an object thereof is to provide an override mechanism to
An object of the present invention is to provide a vehicle door lock device that enables a quick door opening operation and disables the door opening operation from the inside of the vehicle compartment to improve safety.

[Means for solving the problem]

In order to achieve the above object, the present invention provides an inside lever or an outside connected to an inside handle of a door when the locking / unlocking mechanism is unlocked by a locking / unlocking operation member provided inside or outside the door. When any of the outside levers connected to the handle is released, the open lever that releases the meshing of the meshing mechanism is actuated so that the door can be opened, and the locking / unlocking mechanism is in the locked state. Although the door cannot be opened by disabling the operation of the open lever by the release operation of the side lever, the door can be opened by operating the open lever by the release operation of the inside lever, and the locking / unlocking mechanism is In a vehicle door lock device equipped with an override mechanism for returning from a locked state to an unlocked state, A non-transmission position which is provided in the middle of the connecting portion between the side lever and the open lever, and which makes the release operation of the inside lever untransmittable to the open lever regardless of the state of the locking / unlocking mechanism. A child proof operation switch having a child proof mechanism having a child proof lever that is movable to a transmission position that enables transmission of the release operation of the inside lever to the open lever, Is provided with an actuator which is actuated by an operation to move the child proof lever between a non-transmission position and a transmission position.

[Action]

When the locking / unlocking mechanism is in the locked state and the childproof lever is in the transmission position that allows the release operation of the inside lever to be transmitted to the open lever, the operation of the override mechanism is effective and the inside handle of the vehicle interior When the inside lever is released by operation, the open lever is operated via the child proof lever, the meshing mechanism is released, the door can be opened, and the locking and unlocking mechanism returns from the locked state to the unlocked state. It enables the operation of the override mechanism to be operated, and can perform a quick door opening operation from inside the vehicle.

When the child proof lever is in the non-transmission position that cannot transmit the release operation of the inside lever to the open lever, disable the operation of the override mechanism,
In addition, the child proof lock is enabled by enabling the operation of the child proof mechanism, and regardless of the state of the locking / unlocking mechanism, the door opening operation by operating the inside handle inside the vehicle is always impossible, and the child is abruptly mischievous. The door never opens.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

(1) shows a known meshing mechanism having a latch that is mounted on a door and can mesh with a striker fixed to the outside of the vehicle body, and a locking plate that engages with the latch and restrains the door in a closed state. (2) A door lock body provided inside.

(3) is an outside lever pivotally attached by a shaft (5) above a base plate (4) fixed to the body (2), and one end (3a) of which is an outside lever provided outside the door. It is connected to a side handle (not shown) via a rod or the like, and can be rotated clockwise in FIG. 2 by a releasing operation of the outside handle. (6)
Is a spring for urging the outside lever (3) counterclockwise in FIG.

(7) is a locking / unlocking lever pivotally mounted on a shaft (8) below the base plate, and one end (7a) thereof is a key lever (shown in the figure) of a key cylinder serving as a locking / unlocking operation member provided outside the door. (Not shown) and can be operated in a locked position shown by a solid line in FIG. 2 and an unlocked position also shown by a two-dot chain line.

Reference numeral (9) is a spring which is hooked between the locking / unlocking lever (7) and the base plate (4) and can bias the locking / unlocking lever (7) between the locked position and the unlocked position.

(10) is a knob lever pivotally attached to a bent portion (4a) of a base plate (4) by a shaft (11), and a forked portion (10a) at one end of the knob lever (7) is at the other end ( By engaging with 7b), in synchronization with the operation of the locking / unlocking lever (7), it is possible to rotate between the locking position shown by the solid line in FIG. 1 and the unlocking position also shown by the two-dot chain line. .

The other end portion (10b) of the knob lever (10) is provided to be movable up and down on a weight portion of the door on the vehicle interior side, and is movable to a locking position which is completely retracted from the weight portion and a release position which also protrudes. The knob (11) is connected via a rod (12) to a knob (11) that is a locking / unlocking operation member inside the vehicle.
It is adapted to be rotated to a locking position by a locking operation by pushing in.

When the knob (11) is in the locked position, the entire knob is immersed in the door weight, eliminating the clue of pinching.
The unlocking operation from the knob (11) side cannot be done manually or by any other action.

(13) is an open lever fixed to the shaft portion (13a) of the locking plate for releasing the meshing mechanism of the meshing mechanism. The open lever is rotated clockwise in FIG. 2 so that the striker meshes with the meshing mechanism. You can unlock and open the door.

The shaft (7c) is fixed at its upper end to the outside lever (3) and fixed at its lower part to the working end (7b) of the locking / unlocking lever (7) through the elongated hole (14a). ) Is slidably connected to the lock lever (7) in synchronization with the locking and unlocking positions of the locking lever (7) and the unlocking position. It can be rotated to the unlocked position indicated by the chain double-dashed line.

When the locking / unlocking lever (7) is in the unlocking position, the outside handle (3) is rotated clockwise by operating the outside handle outside the vehicle to move the sub-lever (14) downward. , The engaging portion (14b) of the sub-lever (14) is the first release portion (13b) of the open lever (13)
The door can be opened by abutting against the open lever (13) and the door can be opened. However, when the locking / unlocking lever (7) is in the locking position, the sub-lever (14) is moved by operating the outside handle. Even if it moves downward,
The locking / unlocking mechanism is configured such that b) swings against the first release portion (13b) so that the door cannot be opened.

(15) is another bent portion (4b) of the base plate (4)
An inside lever pivotally attached to a shaft (16), the first arm portion (15a) of which is connected to an inside handle (not shown) provided inside the door via a rod or the like, and A long hole (15c) is formed in the two arms (15b).

In (17), the long hole (17a) formed at one end is the shaft (1
A shaft (1) slidably engaged with 6) and fixed to the other end
7b) is a childproof lever slidably engaged with the elongated hole (15c) of the inside lever (15) and slidably supported by the second arm portion (15b) of the inside lever (15), As shown in FIG. 1, the engaging portion (17c) formed at the other end is the second arm portion (15) of the inside lever (15).
The second part of the open lever (13) protruding from the end of b)
As shown in FIG. 3, the transmission position at which the release portion (13c) can come into contact with the engagement portion (17c) is retracted from the end of the second arm portion (15b), and the second release portion (13c) is retracted. ) Can be moved to a display transmission position where it cannot abut.

Reference numeral (18) is a childproof operation lever pivotally attached to a bent portion (4b) of the base plate (4) by a shaft (19), and the first arm portion (18a) extending downward has a shaft (17).
The arc-shaped slot (18) centered on the shaft (16) with which b) engages
b) is drilled and rotated clockwise from the unlocked position shown in FIG. 1 to move the childproof lever (17) to the non-transmission position via the elongated hole (18b) and the shaft (17b). It can be moved, and from the locking position shown in Fig. 3,
By rotating counterclockwise, the child proof lever (17) can be moved to the transmission position.

The child proof lever (17) is in the transmission position,
When the locking / unlocking mechanism is in the locked state, the inside handle (15) and the child proof lever (17) are interlocked by releasing the inside handle,
The engaging part (17c) releases the open lever (13) to open the door, and the open lever (13)
When the release lever is released, the canceling part (13d) of the open lever (13) contacts the bent part (14c) of the sub-lever (14), and the sub-lever (14) is forcibly rotated from the locked position to the unlocked position. Then, the locking / unlocking mechanism is returned to the unlocked state to enable the operation of the override mechanism.

Also, when the child proof lever (17) is in the non-transmission position, even if the inside handle is released,
The engaging part (17c) is the second release part (1) of the open lever (13).
3c) is swung, and the operation of the override mechanism is disabled so that the door cannot always be opened from the inside of the vehicle, and the child proof mechanism is placed in the child proof lock state.

Reference numeral (20) denotes a first actuator having a case (20a) in which a motor capable of normal and reverse rotation and a reduction gear capable of decelerating rotation of the motor and transmitting to the output member (20b) are housed. (20b) is connected to the other end (10b) of the knob lever (10) through a rod (21), and the forward or reverse rotation of the motor causes the knob lever (10) to be locked at a locking position shown by a solid line in FIG. Similarly, can be moved to an unlocked position indicated by an imaginary line, and the locking / unlocking mechanism can be switched between a locked state and an unlocked state via the knob lever (10).

The first actuator (20) can be operated by a lock / unlock operation switch provided in the vehicle compartment, which will be described later.

(22) is a second actuator having the same structure as the first actuator (20), and its case (22a)
The more protruding output member (22b) is connected to the second arm portion (18c) of the child proof operation lever (18) by the rod (2
3), and the child proof operation lever (18) can be moved between the unlocked position shown in FIG. 1 and the locked position shown in FIG. 3 by the forward or reverse rotation of the motor. Via the child proof control lever (18)
The child proof lever (17) can be operated in the transmission position and the non-transmission position.

The second actuator (22) can be operated by a child proof operation switch provided in the vehicle compartment which will be described later.

 FIG. 4 shows an embodiment of the control circuit.

(24) is a neutral return type in-vehicle lock / unlock operation switch which is provided inside the vehicle compartment near the driver's seat and can be switched to the lock side contact (24a) and the unlock side contact (24b). (24a) is a lock side driving circuit (2) for driving the motor (20c) of the first actuator (20) via the OR circuit (25).
6), and the unlocking side contact (24b) is connected to the unlocking side drive circuit (26a) via the OR circuit (27).

Like the lock / unlock operation switch (24) inside the vehicle, (28) is provided inside the vehicle compartment near the driver's seat and has a lock side contact (28
a) and a neutral return type child proof operation switch that can be switched to the unlocking side contact (28b).
a) is the second actuator (2) via the OR circuit (29).
2) is connected to the lock side drive circuit (30) for driving the motor (22c), and the unlock side contact (28b) is connected to the unlock side drive circuit (32) via the OR circuit (31). ing.

(33) is a neutral return type vehicle exterior that can be switched to the locking side contact (33a) and the unlocking side contact (33b) by a key plate for operating a key cylinder provided outside the vehicle or an external locking and unlocking operation member such as radio waves. In the locking / unlocking operation switch, the locking / unlocking side contact (33a) is connected to the locking side drive circuit (26) of the first actuator (20) and the second actuator (22) via the OR circuit (25) (29). It is connected to the lock side drive circuit (30), and the unlock side contact (33b) is connected to the OR circuit (27) (31).
Is connected to the unlocking side drive circuit (26a) of the first actuator (20) and the unlocking side drive circuit (32) of the second actuator (22).

In the present embodiment having the above-mentioned configuration, the lock / unlock operation switch (24) in the vehicle is operated to be locked, and the first actuator (2
The outside handle outside the vehicle is released by operating the output member (20b) of 0) in the locking direction or manually locking the knob (11) in the vehicle to lock the unlocking mechanism. Even if it is operated to release the outside lever (3), the sub-lever (14) swings against the first release portion (13b) of the open lever (13),
Door opening operation is impossible. However, when the child proof lever (17) is in the transmission position, the operation of the override mechanism is effective. Therefore, by releasing the inside handle in the vehicle and operating the inside lever (15), the child proof lever ( The engaging portion (17c) of 17) abuts the second releasing portion (13c) of the open lever (13) to release the open lever (13) to perform the door opening operation and the open lever. By the canceling part (13c) of (13), the sub lever (1
The locking / unlocking mechanism (7) and the knob lever (10) can be returned and rotated from the locking position to the unlocking position via 4) to bring the locking / unlocking mechanism into the unlocked state.

When the lock / unlock operation switch (24) in the vehicle is unlocked, the first actuator (20) is unlocked, and the knob lever (10), the lock / unlock lever (7), and the sub-lever (14) rotate to the unlocked position. And the locking / unlocking mechanism is unlocked,
When the outside lever (3) is operated by the outside handle outside the vehicle, the open lever (13) is released via the sub-lever (14) so that the door can be opened and the childproof lever (17) can be opened.
Is in the transmission position, the open lever (13) is released via the child proof lever (17) by the release operation of the inside handle in the vehicle to open the door.

Lock the child proof operation switch (28) inside the vehicle to lock the second actuator (22),
Output member (22b), childproof operating lever (1
When the child proof lever (17) is moved to the non-transmission position via 8), the child proof mechanism enters the child proof lock state.In this state, regardless of the locked / unlocked state of the locking / unlocking mechanism, the inside handle from inside the vehicle The door opening operation is always disabled, and the door does not open unexpectedly due to a child's mischief. Further, from the outside of the vehicle, if the locking / unlocking mechanism is in the unlocked state, the door can be opened by the outside handle.

Lock and unlock from the outside of the vehicle to unlock the switch (3
When the lock side contact (33a) of 3) is turned on, both the first actuator (20) and the second actuator (22) are locked, the locking and unlocking mechanism is in the locked state, and the child proof mechanism is the child proof mechanism. Can be locked. In this state, for example, even if the inside handle is operated by intruding a thin plate or the like into the vehicle through the gap between the door glass and the seal due to theft, the door cannot be opened, and the knob (11) cannot be opened. Even if it is attempted to operate it in the unlocked position, the knob (11) is immersive and cannot be pulled up without a clue, which is extremely effective in anti-theft measures.

Unlock operation from outside the vehicle to unlock / unlock operation switch (3
By turning on the unlocking side contact (33b) of 3), both the first actuator (20) and the second actuator (22) are unlocked, the locking and unlocking mechanism is in the unlocked state, and the child proof. Mechanism child-proof levers (17)
Can be placed in the transfer position to enable operation of the override mechanism.

〔The invention's effect〕

According to the present invention, the override mechanism enables a quick door opening operation from the inside of the vehicle, and the child proof mechanism can always disable the door opening operation from the inside of the vehicle regardless of the state of the locking / unlocking mechanism. It is possible to satisfy all of the various performances required for door locks of automobiles, and it is particularly suitable for passenger side doors other than the driver side door, and its operability and safety are significantly improved.

Further, it can be shared with the door lock of the door on the driver's side and other door locks.

Furthermore, by providing a child proof operation switch for activating an actuator that moves the child proof lever between the non-transmission position and the transmission position, for example, in a state where the driver is seated in the driver seat,
Doors other than the driver's seat, for example, the child proof mechanism of the door lock of the door on the rear seat side can be locked and unlocked. It is not necessary to dismount, open the rear door from outside the vehicle, operate the child proof lock lever provided on the end surface of the door, and then close the door. It is also possible to realize the effect of noticing that the childproof lock has been forgotten and immediately performing the lock operation.

In addition, compared with the one that simply combines the conventional override mechanism and child proof mechanism,
The structure can be significantly simplified.

[Brief description of drawings]

1 is a front view of a door lock device in which a part of the present invention is omitted, FIG. 2 is a sectional side view taken along the line II-II in FIG. 1, and FIG. 3 shows a locked state of a child proof mechanism. A front view similar to FIG. 1 and FIG. 4 are control circuit diagrams. (1) Door lock body, (3) Outside lever (7) Locking and unlocking lever (locking and unlocking mechanism) (10) Knob lever, (11) Knob (13) Open lever, (14) Sub lever (15) Inside lever (17) ) Childproof lever (18) Childproof operating lever (20) First actuator, (22) Second actuator

Claims (1)

(57) [Claims] 1. An inside lever connected to an inside handle of the door or an outside connected to an outside handle when the locking / unlocking mechanism is unlocked by a locking / unlocking operation member provided inside or outside the door. When any of the levers is released, the open lever for releasing the meshing of the meshing mechanism is operated to open the door, and when the locking / unlocking mechanism is in the locked state, the outside lever is released by the unlocking operation. The door cannot be opened by disabling the operation of the open lever, but the door can be opened by operating the open lever by releasing the inside lever, and the locking / unlocking mechanism is unlocked from the locked state. A door lock device for an automobile having an override mechanism adapted to return to the inside lever, comprising: A non-transmission position that is provided in the middle of the connecting portion with the punch lever and that does not transmit the release operation of the inside lever to the open lever, regardless of the state of the locking / unlocking mechanism, and the inside lever. A child proof mechanism having a child proof lever that can be moved to a transmission position that enables transmission of the release operation to the open lever is provided, and it is operated by operating a child proof operation switch provided at a key place in the vehicle interior. A door lock device for an automobile, comprising an actuator for moving the child proof lever between a non-transmission position and a transmission position.