JPH0420683A - Door lock device for car - Google Patents

Abstract

PURPOSE:To improve operation efficiency and to promote safety by providing locking and unlocking machineries, safety machinery capable of moving to a locking position and unlocking position and cancel lever to the unlocking and locking position. CONSTITUTION:Locking and unlocking machineries 11 capable of moving are provided to an unlocking position capable of releasing a lock by lock releasing operation means 9 provided to the inside and outside of a car and a locking position incapable of releasing the lock. After that, a safety machinery 18 connected to the lock releasing operation means for the inside of the car and capable of moving to the unlocking position and locking position is provided. Then, when the safety machinery 18 is positioned at the unlocking position, the locking and unlocking machineries 11 are moved to the unlocking position, and when the safety machinery 18 is positioned at the locking position, a cancel lever 24 to cancel a safety lever 21 is provided. According to the constitution, an unjust unlocking is prevented and, at the same time, an override operation and self-lock operation can be also made.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention particularly relates to a door lock device for an automobile having a configuration optimal for a rear seat door.

[Conventional technology]

Conventional door lock devices disable the locking and unlocking operations of the lock knob provided on the interior side of the door to disable the unlocking operation of the inner and outer handles provided inside and outside the vehicle. In addition to the locking/unlocking mechanism that can be moved to the locked and unlocked positions, even if the locking/unlocking mechanism is in the locked position, the door can be opened at any time by operating the inner handle. A structure equipped with an override mechanism that improves operability in this manner is known.

[Problem to be solved by the invention]

However, in general, the override mechanism forces the locking mechanism from the locked position to the unlocked position by unlocking the inner handle in conjunction with the door opening operation, even if the locking mechanism is in the locked position. Since the locking/unlocking mechanism has a mechanism for moving the door, it also has a canceling mechanism that forcibly returns the locking/unlocking mechanism to the unlocked position when the door is closed after the locking/unlocking mechanism is placed in the locked position.

Although such a mechanism is extremely convenient for the driver's door, it is not suitable for the rear door where children or other passengers who do not have a key plate may ride.
This becomes extremely inconvenient, and if the door lock attached to the driver's seat door is applied to the rear seat door as it is, there will be a problem that operability and safety will be impaired.

The present invention was made in view of these conventional problems, and its purpose is to improve safety.

Another object of the present invention is to provide an automobile door lock device that is excellent in operability and is optimal for rear seat doors.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention engages with a lock release mechanism (3) to release a door by means of lock release operation means provided inside and outside the vehicle. A locking/unlocking mechanism (11) that is movable between an unlocking position where the unlocking operation is enabled and a locking position where the unlocking operation is disabled when the lock face release mechanism is emptied, and a locking/unlocking mechanism (11) that is connected to the in-vehicle unlocking operation means and locks/unlocks. When the mechanism (11) is in the locked position, the first engaging portion (21d) engages the unlocking mechanism (3).
), the locking position is located at a position where the lock can be engaged with the vehicle interior unlocking operation means, and the first
a safety mechanism (18) having a safety lever (21) that is movable to a locked position in which the engaging part (21d) is in a position where the lock releasing mechanism misses and disables unlocking; ) is in the unlocked position, the second engaging portion (21e) of the safety lever (21) is released by the release operation of the safety lever (21).
and a cancel lever (24) that moves the locking/unlocking mechanism (11) to the unlocked position by coming into contact with the safety mechanism (18), and causes the safety lever (21) to swing in vain when the safety mechanism (18) is in the locked position. It is characterized by

[For production]

When the safety mechanism (18) is in the locked position and the lock/unlock mechanism (11) is in the locked position, the door ( D) cannot be opened.

In this state, when the vehicle is parked or stopped, the door (D) cannot be opened even if the interior lock release operation means (9) is operated to release the lock due to unauthorized activity from outside the vehicle.

When the locking/unlocking mechanism (11) is in the locked position and the safety mechanism (18) is in the unlocked position, the door (D) cannot be opened even if the outside unlocking operation means is operated, but the door (D) cannot be opened inside the vehicle. By unlocking the operating means (9), the safety lever (21) is activated by the unlocking mechanism (3).
) to release the lock, and then press the lock knob (16).
An override operation can be performed that allows the door (D) to be opened while the locking/unlocking mechanism (11) remains locked without having to perform an unlocking operation.

At that time, due to the release operation of the safety lever (21), its second engaging portion (21e) is moved to the cancel lever (24).
) to rotate the cancel lever (24), and the cancel lever (24) forcibly moves the lock/unlock mechanism (11) to the unlocked position.

When the door (D) is closed with the locking/unlocking mechanism (11) in the locked position while the door (D) is open, the lock/unlock mechanism (3) engages with the striker of the engaging mechanism.
) operates in the unlocking direction, but at that time the lock release mechanism (
3) is a self-locking operation that allows the door (D) to be closed while holding the locking/unlocking mechanism (11) in the locked position, since it does not interfere with other members such as the cancel lever (24). I can do it.

Therefore, without using a key plate or the like.

It is extremely convenient if the door (D) can be closed and another passenger who does not have a key plate closes the door, such as a rear door.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

(1) is an engagement mechanism that is attached to the rear door (D) of an automobile and includes a latch that can engage with a striker fixed to the vehicle body, and a locking plate that engages with the latch and restrains the door in a closed state. This is a door lock main body provided within the body (2).

(3) is an open lever (unlocking mechanism) fixed to the locking plate of the engagement mechanism, and by rotating it counterclockwise in Fig. 3, the engagement between the latch and the striker is released, and the door is opened. An unlocking operation can be performed to open the door.

(4) is an outer lever pivotally mounted above the body (2) by a shaft (5), and its -@(4a) is a door (D
) is connected to an outer handle (external lock release operation means) (not shown) provided on the outside of the vehicle via a rond, etc., and can be rotated counterclockwise in Fig. 3 by unlocking the outer handle. can.

(6) is a base plate (
7) by a shaft (8), one end (6a) of which is connected to the inner handle (9) (in-vehicle lock release operation means) provided on the interior side of the door (D). ), and the inner handle (
By the unlocking operation 9), it can be rotated counterclockwise in FIG.

(11) is a locking/unlocking mechanism, which is pivotally connected to the base plate 1-(7) by a shaft (12), with the locked position shown in Figure 1.2.4 and the unlocked position shown in Figure 5.6.7. A lock/unlock lever (13) is movable between two positions, and one end (14a) is swingably connected to the outer lever (4) and the other (4b).

It is comprised of a sub-lever (14) whose other end (14b) is slidably engaged with a pin (13a) fixed to the lock/unlock lever (13) through an elongated hole (14e).

(15) consists of the base plate (7) and the lock/unlock lever (1).
3) and biases the locking/unlocking lever (13) in the locking or unlocking direction.

One end (13a) of the locking/unlocking lever (13) is provided at the waist portion of the door on the passenger compartment side so that it can move up and down.

The first part is completely immersed from the mounting surface (Dl) of the waist part.
It is connected via a lock knob (17) u to a lock knob (16) which is movable between the locked position shown in Figs. 2 and 4 and the unlocked position shown in Fig. 5.6.7 protruding from the mounting surface (Dl), The lock knob (16) is moved from the unlocked position to the locked position by the locking operation by pushing the lock knob (16).

When the lock knob (16) is in the locked position, the entirety of the lock knob (16) is recessed into the mounting surface (DI), and there is no hand to pick it up, and unlocking operation by manual or other actions from the lock knob (16) side is impossible. It is now impossible to do so.

The sub-lever (14) interlocks with the locking/unlocking lever (13) and engages an engaging portion (1
4d) opens the open lever (3) as it moves in the longitudinal direction.
) can be moved to the unlocked position shown in Fig. 5.6.7 where it can engage with the abutment part (3a) of ) and the locked position shown in Fig. 22.4 where it cannot also be engaged. .

(18) tt, with the safety mechanism, the base plate (7
) with the first safety lever (20) pivoted by # (49), and one end (21a) of which is connected to the inside lever (6).
The other end (61) is pivotally connected to the shaft (22), and the other end (61)
21b) and a second safety lever (21) slidably engaged with a shaft (23) fixed to the first safety lever (20) through an elongated hole (21e). .

The safety mechanism (18) has a first safety lever (20) and a second safety lever (21) that move upward in response to the release operation of the inner lever (6), as shown in Fig. 4-5. Accordingly, the second safety /<-
The first engaging portion (21d) of (21) is connected to the open lever (3).
), and an unlock position where the first
．． As shown in Figure 2.6, the first engaging part (2bj) can be moved to the lock position where the abutting part (3a) is undone.

(24) is a cancel lever pivotally attached to the bar/strip 1/-t (7) by a shaft (25).

The cancel lever (24) is a cancel part (24a)
However, when the second safety lever (21) is in the unlock position, it engages with the second engaging portion (211) and rotates counterclockwise in FIG. The push part (24b) is in contact with the sub-lever (I4) m (14d)
, the sub-lever (14) is forcibly moved from the locked position to the unlocked position, and the unlocking mechanism (11
) can be placed in the unlocked position.

(26) is a locking/unlocking actuator connected to the locking/unlocking lever (I3), which locks the locking/unlocking mechanism (11) by moving an output member (26a) that reciprocates by applying a force to a decelerating mechanism to reduce the rotation of the motor. Can be moved to position and unlocked position.

(27) is a safety actuator connected to the first safety lever (20), which moves the safety mechanism (18) to the unlock position by an output member (27a) that reciprocates the rotation of the motor via a deceleration mechanism. It can be moved to the lock position.

FIG. 9 shows an example of a control circuit.

(30) and (31) are an in-vehicle lock/unlock operation switch and a safety operation switch provided on the inside of the vehicle near the driver's seat.

(33) is a locking contact (33a) and an unlocking contact ( 33b) a lock/unlock operation switch outside the vehicle that is turned on;
(34) is an impact sensing switch that detects and turns on when a strong impact force is applied to the vehicle body, such as in a collision.

(35) is a motor for a lock/unlock actuator (26) attached to the left and right rear doors, and (36) is a motor for a safety actuator (27) attached to the left and right rear doors.

(37) (3g) (39) (40) shows an OR circuit, and the OR circuit (37) connects the locking contact (30a) of the locking/unlocking operation switch (30) inside the vehicle and the locking contact (30a) of the locking/unlocking operation switch (33) outside the vehicle. The OR circuit (38) is connected to the locking contact (33a), the unlocking contact (30b) of the in-vehicle locking/unlocking operation switch (30), the release contact (33b) of the external locking/unlocking operation switch (33), and the impact detection switch. (34), and the OR circuit (39) is connected to the safety operation switch (34).
The lock contact (31a) of I) is connected to the lock contact (33a) of the lock/unlock operation switch (33) outside the vehicle, and the OR circuit (
40) are respectively connected to the unlock contact (33b) of the vehicle exterior lock/unlock operation switch (33), the unlock contact (31b) of the safety operation switch (31), and the impact sensing switch (34).

(41) is a locking control circuit for driving the motor (35) of the locking/unlocking actuator (26) connected to the OR circuit (37); (42) is the locking/unlocking actuator (35) connected to the OR circuit (38); The unlocking control circuit (43) is for driving the motor (35) of the safety actuator (27) connected to the OR circuit (39).
) Driving lock control circuit; (44) is an unlock control circuit for driving the motor (36) of the safety actuator (27).

The in-vehicle lock/unlock operation switch (3o) has a locking contact (30a)
), the motor (35) of the locking/unlocking actuator (26) is rotated in the locking direction and the locking/unlocking mechanism (11) is turned on.
) can be moved to the locking position, and the unlocking contact (
30b), the motor (35) can be rotated in the unlocking direction to move the locking/unlocking mechanism (11) to the unlocking position.

The safety operation switch (31) has a locking contact (31a
), the safety actuator (27)
The safety device II (18) can be moved to the lock position by rotating the motor (36) in the locking direction, and when the unlock contact (31b) is turned on, the motor (36)
The safety mechanism (18) can be moved to the unlocked position by rotating in the unlocking direction.

The locking/unlocking operation switch (33) outside the vehicle has a locking contact (33a).
), the locking/unlocking mechanism (
11) to the locked position, the safety mechanism (18) to the locked position, and the unlocking contact (33b)
When turned on, the motor (35) and the motor (36) can be rotated in the unlocking direction to move the locking/unlocking mechanism (11) to the unlocked position and the safety mechanism (18) to the unlocked position.

When the impact detection switch (34) detects an impact and turns on, it activates the locking/unlocking actuator (26) and the safety actuator (27) to lock/unlock the locking/unlocking mechanism (11).
can be moved to the unlocked position and the safety mechanism to the unlocked position.

Next, the operation of the present invention will be explained.

As shown in Figure 2, when the safety mechanism (18) is in the locked position and the lock/unlock mechanism (11) is in the locked position, either the outer handle outside the vehicle or the inner handle (9) inside the vehicle is unlocked. Door (D) cannot be opened even if you operate it.

That is, by unlocking the outer handle, the sub-lever (14) is released via the outer lever (4).
Even if you move the sub-lever (14) in the release direction (upward),
) is unable to open the door (D) because the engaging portion (14d) of the door (14d) misses the contact portion (3a) of the open lever (3). In addition, by unlocking the inner handle (9), the second
Even if the safety lever (21) is moved in the release direction (upward), the first engaging portion (21d) of the second safety lever (21) misses the opening lever (3), so the door ( D) cannot be opened.

In this state, the lock knob (16) is
) is recessed from the mounting surface (DI) of the lock knob (DI), so it is virtually impossible to pick up the lock knob (16) and unlock it. , locking/unlocking mechanism caused by child's mischief (11)
Since there is no chance of the lock being unlocked, safety is guaranteed when the vehicle is running.

Furthermore, when a strong impact force is applied to the vehicle body due to an accident, the impact sensing switch (34) senses and turns on the locking/unlocking actuator (26).

The safety actuator (27) operates in the unlocking direction to move the locking/unlocking mechanism (11) to the unlocked position and the safety mechanism (18) to the unlocked position, so that the outer handle or From inside the car, you can unlock the inner handle (9) and immediately open the door (D) to escape.

When a vehicle is parked or parked, unauthorized acts from outside the vehicle may
Even if an attempt is made to unlock the lock knob (16), there is no clue to pick up the lock knob (16), so the unlock operation cannot be performed.Therefore, theft prevention performance is guaranteed when the vehicle is parked or parked. Furthermore, even if the inner handle (9) is operated to unlock due to fraudulent activity, the door (D
) cannot be opened.

When the safety operation switch (31) installed inside the vehicle is operated to unlock from the state shown in Fig. 2, the safety actuator (27) operates in the unlocking direction, and the safety mechanism (18) is activated as shown in Fig. 4. Move to unlock position.

In this state, the locking/unlocking mechanism (11) is in the locked position, so even if the outer handle is operated, the sub-lever (14) will miss the open lever (3), so the door (D) cannot be opened. Although it cannot be opened, the second safety lever (21) is in a position where it can engage with the open lever (3), so the inner lever (6) can be opened by unlocking the inner handle (9). The first engaging portion (21d) of the second safety lever (21)
) engages with the contact part (3a) of the open lever (3) to release the lock, and the door ( D) can perform an override operation that can open the

At that time, as shown in FIG. 7, the second engaging portion (21e)
is the cancel part (24a) of the cancel lever (24)
, the cancel lever (24) is rotated counterclockwise, and the push part (24b) of the cancel lever (24) pushes the contact part (14d) of the sub-lever (14), so that the sub-lever (14) is forcibly moved to the unlocked position, and the lock/unlock mechanism (11) is placed in the unlocked position.

When the door (D) is closed with the locking/unlocking mechanism (11) in the locked position with the door (D) open, the open lever (3) engages with the striker of the engaging mechanism.
) moves in the release direction, but at that time the open lever (
3) is a self-locking operation that allows the door (D) to be closed while holding the locking/unlocking mechanism (11) in the locked position, since it does not interfere with other members such as the cancel lever (24). Since the door (D) can be closed without using a key plate, etc., the door (D) does not have a key plate like the rear part 17 etc.

It is extremely convenient if the passenger closes the door.
i! From the state shown in l, press the lock/unlock operation switch (3) inside the car.
0), the lock/unlock actuator (z6)
is operated in the unlocking direction, and the lock/unlock machine 4 is activated as shown in Fig. 6.
1 (If) moves to the unlocked position.

In this state, although the safety mechanism (11) is in the locked position, the sub bar (
Since the engaging portion (14d) of 14) is in a state where it can engage with the abutting portion (3a) of the open lever (3), by unlocking the outer handle, the outer lever (4) The door (D) can be opened by releasing the open lever (3) through the sub-lever (14) and the sub-lever (14). Also, the inner handle (9) can also be used to open the open lever (3) via the sub-lever (14).
) can be activated to open the door (D).

FIG. 5 shows a state in which the locking/unlocking mechanism (11) is in the unlocked position and the safety device #I (18) is in the unlocked position. In this state, the outer handle, inner handle (9) When the door (D
) can be opened.

When the key cylinder installed outside the vehicle is operated to lock the vehicle exterior lock/unlock operation switch (33), both the lock/unlock actuator (26) and the safety actuator (27) operate in the locking direction, and the lock/unlock mechanism (11) is activated. ) moves to the locked position, and the safety mechanism (18) moves to the locked position.

Therefore, as described above, it is possible to prevent the lock knob (16) from recessing from the mounting surface (DI) of the door (D) and the door from being opened by unauthorized acts when the vehicle is parked or parked.

〔Effect of the invention〕

As described above, according to the present invention, the following effects are achieved.

(a) When the safety mechanism (18) is in the locked position, as long as the locking/unlocking mechanism (11) is in the locked position, even if the external lock release operating means is operated to release the lock.

Since the door cannot be opened, even though it has an override mechanism, it is possible to prevent the door from being opened by unauthorized acts.

(b) When the safety mechanism (18) is in the unlocked position, even if the locking/unlocking mechanism is in the locked position, the in-vehicle release operation means can be unlocked, and the locking/unlocking mechanism can be unlocked from the locked position. Although an override operation is possible that allows the locking mechanism to be moved to the locked position, it is also possible to perform a self-locking operation that allows the locking mechanism to remain in the locked position even if the door is closed. Therefore, it is possible to obtain an optimal configuration especially for the rear seat door, and the operability can be significantly improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view illustrating the installed state of the device of the present invention. FIG. 2 is a sectional view taken along the line ■-■ in FIG. 3. Figure 3 is a plan view of the door lock body, Figures 4 to 7 are operational explanatory diagrams of the main parts, and Figure 4 shows the operation with the locking mechanism in the locked position and the safety mechanism in the unlocked position. FIG. 5 is an explanatory diagram of the operation with the locking/unlocking mechanism in the unlocked position and the safety mechanism in the unlocked position. FIG. 6 is an explanatory diagram of the operation with the locking/unlocking mechanism in the unlocked position and the safety mechanism in the locked position. FIG. 7 is an explanatory diagram of the operation when the inner lever is activated. FIG. 8 is an exploded perspective view of the locking/unlocking mechanism and the safety mechanism. FIG. 9 is a control circuit diagram. FIG. 10 is a schematic perspective view showing the interior of an automobile to which the present invention is applied. (1) Door lock body (3) Open lever (lock release means) (4) Outer lever (outside lock release operation means) (6) Inner lever (9) Inner handle (inside lock release operation means) (
11) Locking/unlocking mechanism (13) Locking/unlocking lever (
14) Sub lever (16) Lock knob (1
8) Safety mechanism (20) First safety lever (21) Second safety lever (21d) First engagement part (21e) Second engagement part (24) Cancel lever (26) Locking/unlocking actuator (27) Safety actuator (30) Interior lock/unlock operation switch (31) Safety operation switch (33) External lock/unlock operation switch (34) Shock detection switch Figure 9↓ Figure O

Claims (1)

[Claims] In-vehicle and out-of-vehicle lock release operation means provided inside and outside the car engage with the lock release mechanism to enable unlocking to open the door; a locking/unlocking mechanism that is movable to a locking position in which the unlocking mechanism is disabled and the unlocking operation is disabled; and a locking/unlocking mechanism that is movable to a locking position that disables the unlocking operation when the unlocking mechanism is idle; The vehicle is movable between an unlock position in which the lock can be unlocked by an in-vehicle lock release operating means, and a lock position in which the first engaging portion is in a position where the lock release mechanism is not activated and the lock cannot be unlocked. a safety mechanism having a safety lever, and when the locking/unlocking mechanism is in the locked position and the safety mechanism is in the unlocked position, the release operation of the safety lever abuts the second engaging part of the safety lever, and the locking/unlocking is performed. A door lock device for an automobile, comprising a cancel lever that moves the lever to an unlocked position and causes the safety lever to swing idly when the safety mechanism is in the locked position.