JPH0548836B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention provides a lock for an automobile that includes a first door pivotally connected to the body of the automobile and a second door pivotally connected to the first door. It is related to the device.

[Conventional technology]

For example, in van-type cars, hatchbacks, etc., the rear door has a double opening/closing structure, consisting of a first door pivoted to the vehicle body and a second door pivoted to the first door. There is.

In such doors, the first door is used for the purpose of putting in and taking out relatively large items, and the second door is used for purposes such as ventilation inside the car and taking out and taking out small items.

Therefore, this type of door is equipped with a locking device that allows the first door and the second door to be opened and closed together, and the second door to be opened and closed independently.

A conventional locking device of this type is disclosed in, for example, Japanese Patent Laid-Open No. 62-37487.

This includes a first lock that is provided on the first door and locks the first door against the vehicle body when the door is closed, and a lock that is provided on the first door and locks the second door against the first door when the door is closed. A second lock is provided on the first door and is linked to the first lock and the second lock through linking means, respectively, and is moved in one direction to release the first lock, and A lock release operation device is provided on at least one of the first lock and the second lock, and when the lock is in the released state, the lock release operation device is configured to release the second lock by being moved in the other direction. a restraint means for preventing the movement of the lock release operating device in the direction of releasing the lock, and when either the first lock or the second lock is in the released state, the restraint means prevents the movement of the lock release operating device in the direction of releasing the lock. Movement of the other door in the unlocking direction is prevented, thereby making it impossible to release the other lock, thereby ensuring that only one of the first door and the second door can be opened.

[Problem that the invention seeks to solve]

In the above-mentioned lock device, the first lock, second lock, lock release operating device, etc. are individually attached to the first door, and they are connected by a rod or the like, so it is easy to process each member. Due to errors and assembly errors, the effective length of the rod, etc. must be adjusted, which is troublesome and requires high installation accuracy.

In addition, since the number of parts is large and the structure is complex,
Despite being smaller and lighter, the structure and assembly required a large number of man-hours, making it difficult to improve work efficiency and leading to high costs.

The present invention has been made to solve the above problems, and it is possible to simplify the structure and reduce the number of parts, reduce the size and weight, and reduce the number of man-hours during manufacturing and assembly. The purpose is to provide a locking device.

[Means for solving problems]

Means for solving the above problems is a locking device for an automobile comprising a first door pivotally connected to the vehicle body and a second door pivotally connected to the first door.
A first lock capable of locking the first door to the vehicle body in the closed state, a second lock capable of locking the second door to the first door in the closed state, and an operating lever are disposed on a board fixed to the door. a lock release means movable to at least three positions, a neutral position and two operating positions;
By moving each lock release lever provided on each of the locks and capable of setting each lock into an unlocked state and the operating lever of the lock releasing means from a neutral position to one of the operating positions, The lock release lever of the lock is interlocked to the lock release position, the lock release lever of the second lock is restrained in the lock release impossible position, and the operating lever is moved from the neutral position to the other operating position. The lock release lever of the two locks is interlocked with each other so that the lock release lever of the first lock is moved to the lock release position, and the lock release lever of the first lock is restrained in the lock release impossible position.

[Effect]

When the operating lever of the lock release means moves from the neutral position to one of the operating positions, one of the lock release levers that is engaged with the first lock and the second lock moves to the lock release position and releases one of the locks. , and the other lock release lever is restrained at the non-unlockable position, making it impossible to release the lock.

Conversely, when the operating lever moves from the neutral position to the other operating position, one lock cannot be unlocked and the other lock is unlocked, so that the first door and the second door are locked. When one of the doors is open,
The other door cannot be opened.

〔Example〕

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

FIG. 1 is a front view of the entire locking device of the present invention;
FIG. 2 is a side view showing an example in which the present invention is applied to a back door of a hatchback vehicle, and FIG. 3 is an external view of the main parts of the rear portion of the same.

In FIGS. 2 and 3, 1 is a car body, 2 is a back door, and the front edge of the back door 2 is pivoted to the upper rear part of the car body 1 with a hinge 3 so that it can be opened and closed in a flip-up manner. There is.

The back door 2 includes a door frame 5 as a first door having an opening 4 in the center, and a second door frame 5 which is pivotally attached to the front edge of the door frame 5 with a hinge 6 and which can open and close the opening 4. It has a double opening/closing structure with window glass 7 serving as a door.

8 is a door lock device provided at the center of the rear end of the door frame 5; 9 is a striker fixed upwardly to the rear of the vehicle body 1 and engages with a first lock (to be described later) of the lock device 8; 10 is a window glass This is a striker that is fixed downwardly to the lower surface of the rear end of the lock device 7 and engages with the second lock of the lock device 8.

As shown in FIG. 1, the lock device 8 is pivotally attached to the lower part of a base plate 11 fixed to the door frame 5 with a shaft 12, and engages with a striker 9 fixed to the vehicle body 1. a latch 13 and a latch 15 which is also pivoted symmetrically to the latch 13 with an axis 14 in the upper part of the base plate 11 and which engages a striker 10 fixed to the pane 7; both latches 13; . By fitting a pin 19 projecting from the upper end into a horizontal arc-shaped long hole 18 drilled in the actuating lever 16, the actuating lever 1 can be rotated with an appropriate amount of play.
6 and engageable with the latch 13;
By loosely fitting a pin 23, which is pivoted symmetrically with respect to 0 and protrudes from the lower end, into a horizontal arc-shaped long hole 22 drilled in the actuation lever 16,
It is linked with the operating lever 16 with an appropriate play,
It also comprises a lock release lever 24 which can be engaged with the latch 15.

The right side of the actuating lever 16 is linked by a pin 28 to a key plate 27 that is integrated with a rotor 26a in a key cylinder device 26 provided in the door frame 5, and a key (not shown) is inserted into a key insertion hole 26b. By rotating the rotor 26a from the neutral position to the left and right by a required angle, the actuating lever 16
is rotated together with the key plate 27 from the neutral position shown by the solid line in FIG. ing.

Note that insertion and removal of the key into the key insertion hole 26b is possible only when the key plate 27 is in the neutral position, and when the key is removed in this state, the key plate 27 and the operating lever 16 are restrained in the neutral position. It is designed so that

Between the upper end of latch 13 and the middle part of lock release lever 20, and between the lower end of latch 15 and the middle part of lock release lever 24, latch 1
3 and 15 in the counterclockwise direction about the shafts 12 and 14, and the lock release levers 20 and 24
Tension coil springs 29 and 30 are tensioned, respectively, to urge the shafts clockwise about the shafts 17 and 21, respectively.

When the door frame 5 and the window glass 7 are closed and the latches 13 and 15 are restraining the strikers 9 and 10 with grooves 13a and 15a formed on their peripheral edges, both latches 13 and 15 are closed. teeth,
As shown in FIG.
When the latches 0a and 24a come into contact with each other, they are in the latched position, and the latches 13 and 15 are prevented from rotating in the unlocking direction, that is, in the counterclockwise direction.

When the latches 13 and 15 are both in the latched position and the operating lever 16 is in the neutral position, the upper end of the lock release lever 20 is connected to the pin 19 in the elongated hole 18.
When the pin 23 contacts or approaches the right end of the elongated hole 22, the lower end of the lock release lever 24 becomes elongated. They are located on the left side of the hole 22, respectively.

The length of the elongated hole 22 is approximately equal to or slightly larger than the movement dimension of the operating lever 16 from the neutral position to the left and right operating positions, and the length of the lock release lever 20,
While either one of the lock release levers 24 is in operation, the other lock release lever 24, 20 is configured to move relatively freely along the elongated holes 22, 18.

31 is a stopper when the latches 13 and 15 are rotated counterclockwise from the latched position to the unlocked position.

Of the above configurations, the latch 13, the lock release lever 20, and the tension coil spring 29
A first lock 32 is formed that can lock the door frame 5 to the vehicle body 1, and the latch 15, lock release lever 24, and tension coil spring 30 lock the window glass 7, which is the second door, to the door frame. A second lock 33 that can be locked against the lock 5 is formed, and a lock release means 34 is formed by the operating lever 16, the key cylinder device 26, the key plate 27, and the like.

Next, the operation of the above embodiment will be explained with reference to FIGS. 4 and 5.

When the door frame 5 and the window glass 7 are both closed and the latches 13 and 15 are in the locked state (see FIG. 1), the strikers 9 and 10 are locked, the key plate 27 in the key cylinder device 26 is opened by key operation. is rotated from the neutral position clockwise (to the right) in FIG. move to the operating position.

With this movement, the lock release lever 24 linked to the operating lever 16 is moved against the tension coil spring 30 by the pin 23 coming into contact with the left end of the elongated hole 22 in the operating lever 16, and the shaft 24 is moved against the tension coil spring 30.
1 in the counterclockwise direction, that is, to the unlocked position.

As a result, the locking portion 15b of the latch 15 and the engaging portion 24a of the lock release lever 24 are disengaged, and the latch 15 is moved counterclockwise by the biasing force of the tension coil spring 30 until it comes into contact with the stopper 31. rotate to release the restraint of the striker 10,
The window glass 7 can be opened.

Thereafter, the key plate 27 in the key cylinder device 26 is returned to the neutral position, and the operating lever 1
6 to return to the neutral position.

At this time, the lock release lever 20, which engages with the latch 13 to lock it, moves the pin 1
Since the striker 9 only moves relatively from the right end to the left end along the elongated hole 18, it is not interlocked with the operating lever 16, and therefore the latch 13 remains in the lock release position where the striker 9 remains restrained. is held in
The door frame 5 cannot be opened.

On the other hand, when the key plate 27 is rotated counterclockwise (leftward) in FIG. 1 from the neutral position by key operation, the operating lever 16 is rotated as shown in FIG.
moves from the neutral position indicated by the two-dot chain line in the figure to the operating position on the left, and the lock release lever 20 linked thereto is moved against the latch 13 by the pin 19 coming into contact with the right end of the elongated hole 18. It can be rotated counterclockwise to the unlocked position.

As a result, the latch 13 is moved to the stopper 31 by the biasing force of the tension coil spring 29 in the same manner as described above.
The striker 9 is rotated counterclockwise until it comes into contact with the striker 9, thereby releasing the restraint of the striker 9 and allowing the door frame 5 to be opened.

At this time, the pin 23 of the lock release lever 24 engaged with the latch 15 only moves relatively from the left end to the right end of the elongated hole 22, as described above, so that the latch 15 is engaged with the striker. 10 is held in an unlockable position while being restrained, and the window glass 7 cannot be opened.

By the way, when either one of the latches 13 and 15 is in the unlocked state and the other latch is in the key operated state, the other latch cannot be unlocked by key operation, and the door frame 5 and the window glass 7 are locked. It is always possible to open only one of the doors.

That is, for example, in the case of FIG. 4, when the latch 15 is unlocked, the lock release lever 24 is held in that position by contacting the peripheral edge A of the latch 15, so that it is not in the neutral position. The pin 23 that engages with the elongated hole 22 of a certain operating lever 16 is located on the right end side of the elongated hole 22, and in this state, the key plate 2 can be opened by key operation.
When an attempt is made to rotate the lever 7 counterclockwise from the neutral position, the pin 23 comes into contact with the right end side of the elongated hole 22, so that movement of the operating lever 16 to the left is restricted.

Therefore, the lock release lever 20 is connected to the latch 13.
is held locked, the striker 9 remains restrained, and the door frame 5 cannot be opened with respect to the vehicle body 1.

Further, when the door frame 5 is opened as shown in FIG. 5, the window glass 7 cannot be opened with respect to the door frame 5 due to the same effect as described above.

Next, locking and holding when closing the door frame 5 or the window glass 7 will be explained.

As shown in Figure 4, the window glass 7 with the door open
When locking the door frame 5 to the door frame 5, this is done as follows.

That is, after unlocking the latch 15, the operating lever 16 returns to the neutral position shown by the two-dot chain line, and the pin 23 is moved from the left end side of the elongated hole 22 in the operating lever 16, which is also in the neutral position. Since the striker 10 is located on the right end side, when the window glass 7 is closed, the striker 10 enters the concave groove 15a in the latch 15 and rotates it clockwise. The latch 15 is immediately engaged with the engaging portion 24a of the lock release lever 24, which is biased clockwise by the latch 15, and the latch 15 automatically becomes locked and the striker 10 is restrained.

At this time, the pin 23 is located at the left end side of the elongated hole 22 and waits for the next unlocking.

Further, as shown in FIG. 5, when the door frame 5 is held locked relative to the vehicle body 1, the same operation as described above is performed.

As described above, in the above embodiment, the latches 13 and 15 of the first lock 32 and the second lock 33, which can lock the door frame 5 and the window glass 7, respectively, and the lock release lever 20 are mounted on the integrated substrate 11. 24, and the operating lever 16 linked to the key plate 27 is linked to the lock release levers 20 and 24, which is an extremely simple structure. The entire back door 2 to which this is attached can be designed compactly.

In addition, the number of parts can be reduced compared to conventional methods, and the rods that connect each member have been eliminated.
In addition to reducing the number of man-hours during manufacturing and assembly, adjustment work becomes easier, improving work efficiency and reducing costs.

Furthermore, since each latch 13, 15 and lock release lever 20, 24 are compatible,
The product yield is high, and there is no mistake in selecting parts during assembly.

〔Effect of the invention〕

According to the present invention, a first lock capable of locking the first door, a second lock capable of locking the second door, a lock release lever engaged with these first and second locks,
Since the lock release means and the like that cooperate with each lock release lever are provided on an integrated substrate, manufacturing is simplified, and a lock device that is small, lightweight, and inexpensive can be provided.

In addition, there are fewer parts than before, and since each part can be assembled on the board before installing it on the door, there are fewer assembly errors and adjustments to be made for each part, which improves work efficiency. Significant improvements can be made.

[Brief explanation of drawings]

Fig. 1 is a front view of a locking device showing an embodiment of the present invention, Fig. 2 is a side view showing an example in which the invention is applied to the back door of a hatchback, and Fig. 3 is a locking device for opening the window glass. External view in the closed state, No. 4
The figure is an explanatory diagram when the latch on the window glass side is unlocked, and FIG. 5 is an explanatory diagram when the latch on the door frame side is similarly unlocked. 2... Back door, 5... Door frame (first door),
7... Window glass (second door), 8... Lock device,
11... Board, 13, 15... Latch, 16...
Actuation lever, 18, 22...Long hole, 20, 24...
... Lock release lever, 26 ... Key cylinder device, 27 ... Key plate, 29, 30 ... Tension coil spring, 32 ... First lock, 33 ... Second lock, 34 ... Lock release means.

Claims (1)

[Claims] 1 A locking device for an automobile comprising a first door pivotally attached to the vehicle body and a second door pivotally attached to the first door, the first door being mounted on a substrate fixed to the first door. A first lock that can be locked to the vehicle body in the closed state, a second lock that can lock the second door to the first door in the closed state, and at least three operating levers, one in a neutral position and two in an operating position. and a lock release means movable to the first position.
Each lock release lever provided on each of the lock and the second lock and capable of setting each lock in an unlocked state, and an operating lever of the lock release means,
By moving the actuation lever from the neutral position to one of the actuation positions, the lock release lever of the first lock is interlocked to the lock release position, and the lock release lever of the first lock is moved to the lock release position.
The lock release lever of the lock is restrained in the lock release impossible position, and the operating lever moves from the neutral position to the other operating position, so that the lock release lever of the second lock is interlocked to the lock release position, and the lock release lever of the second lock is moved to the lock release position. A lock device for an automobile, characterized in that one lock release lever is linked to each other so as to be restrained in a position where the lock cannot be released.