JPH0436370Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a lock lever restraint device for a door lock device that is most suitable for automobiles.

[Prior Art] In a conventional door lock device, in order to lock and unlock the door when leaving the car or from inside the car, for example, as shown in FIG.
3 or by operating the key cylinder K from outside the vehicle and rotating the lock lever of the door lock device A to the locked position, the door can be opened even if the inside handle 65 or outside handle 63 is operated in vain. The structure is such that it is not possible to do so. In addition, such door lock devices include:
For example, there is page 131 of the Automotive Engineering Complete Book, Volume 13, Passenger Car Body, published by Sankaido.

[Problems to be solved by the invention] In such a door lock device, the door can be easily locked from the outside by, for example, inserting a wire or a thin plate from the door waist portion and rotating the lock lever to the unlocked position. Because he was able to unlock the door, he was extremely careless.

Therefore, in this invention, it is an object of the present invention to provide a lock lever restraining device for a door lock device, which is made into a single mechanism, has a simple and compact structure, and can simultaneously lock the door lock and obtain a restraining state by ordinary key operation. It is an object.

[Means for Solving the Problems] In order to achieve the above-mentioned object, at least a door lock device including a lock lever that rotates between a locking position and an unlocking position when a key is used to lock or unlock the door is provided. It has an operating lever that is connected to each other and can be rotated between a locked position and an unlocked position using a shaft as a fulcrum, and a stopper that is fixed to the shaft and comes into contact with the operating lever to operate the operating lever from the unlocked position to the locked position. At the same time, the stopper and the operating lever come into contact with each other to restrain the lock lever in the locked position, and the stopper and the operating lever separate, allowing the lock lever to move freely to the unlocked position and release the restraint. It has a rotatable lock member and a meshing part through which rotational power is transmitted in one direction only to the lock member, and the lock member is rotated to a locking position or a releasing position when the key is used to lock or unlock the lock. A drive mechanism is provided to cause the

[Function] According to this restraint device, when a locking operation is performed using a key, the lock lever is rotated to the locked position, and at the same time, the lock lever is restrained in the locked position by the restraint device. In this case, the restraining device consists of three components: a drive mechanism, a locking member, and an operating lever. Since the locking member and the operating lever are provided coaxially, the structure is simple and compact.

[Embodiment] Hereinafter, an embodiment of this invention will be described in detail with reference to the drawings of FIGS. 1 to 9. Note that the same members as in the conventional example will be described using the same reference numerals.

In the figure, 1 indicates the latch of the door lock device A.

The latch 1 is a striker 3 fixed to the vehicle body.
It can be rotated between a full latch position in an open state where the door is properly engaged with the striker 3 when the striker 3 enters, a half latch position where the door is in an ajar state, and an overtravel position where the striker 3 passes through deeper engagement once than the full latch position. It is pivotally connected to a cover plate 6 and a base plate 7 by a latch shaft 5. The latch 1 in the fully latched position is releasably engaged with the claw portion 9a of the pawl 9, and its movement in the counterclockwise direction (arrow A) is restricted.

The pawl 9 is connected to an open lever 17 via a pawl shaft 13, and a spring 1 is attached to the lever 17.
9 to a position in which it is permanently engaged with latch 1 in the fully latched position.

A protrusion 21 is formed on the open lever 17, and the protrusion 21 can be engaged with and disengaged from an engagement portion 25 formed on the sub-lever 23. Sub lever 23
is connected at one end to an outside lever 27 and at the other end to a lock lever 29 that can be rotated to a locked position (dashed line in Figure 5) and an unlocked position (solid line in the same figure), and the lock lever 29 is connected to the locked position. At this time, the engaging portion 25 of the sub-lever 23 is separated from the protrusion 21 of the open lever 17, and even if the outside lever 27 or the inside lever 31 connected to the lever 27 is operated, the engaging portion 25 will not move. The latch 1 and the striker 3 are kept in engagement with each other as shown by the arrow B. Also, when the lock lever 29 is in the unlocked position, the sub lever 2
The engaging portion 25 of No. 3 is the protruding portion 2 of the open lever 17.
1 and by operating the outside or inside levers 27, 31,
The pawl 9a of the pawl 9 can be disengaged from the latch 1 via an open lever 17 that rotates clockwise (arrow in FIG. 5).

Switching of the lock lever 29 to the locked position and the unlocked position is controlled by a key cylinder K connected to the lock lever 29 and a lock knob 33 in the vehicle interior.

The outside lever 27 and the inside lever 31 are connected to the outside handle 63 and the inside handle 65 via rods, respectively.

On the other hand, a restraint device 35 is interlocked with the lock lever 29 to restrain the lock lever 29 in the locked position. The restraint device 35 is in a restraint posture (first
A locking member 37 that can be rotated between a locking position (solid line in the figure) and a release position (solid line in Figure 6) and a drive mechanism 39 that rotates the locking member 37 between a locking position and a releasing position by locking and unlocking operations using a key. Lever 49
The lock member 37 is rotatably pivoted to the shaft 41. The lock member 37 is
The toothed portion 43 meshes with a worm 51, which will be described later, and this meshed portion 52 is such that rotational power is transmitted in one direction only from the worm 51 side to the toothed portion 43 side, and rotation from the locking member 37 side. It functions as a lock to which power is not transmitted. Further, a stopper 45 is provided at the appropriate location. When the locking member 37 is in the restrained position, the stopper 45 engages with the protrusion 47 at the first rotational position (solid line in FIG. 1) to restrain its rotation in the clockwise direction.

The protrusion 47 is integrally fixed to the shaft 41, and is interlocked with the lock lever 29 via an operating lever 49, which is also fixed to the shaft 41. When in the first rotation position, the lock lever 29 is in the locked position. be. Further, when the lock lever 29 is in the second rotation position (dashed line in FIG. 6), the lock lever 29 is set in the unlocked position.

On the other hand, the drive mechanism 39 includes a worm 51 that meshes with the teeth 43 of the lock member 37 and a drive motor 5 that is conductively connected to the worm shaft 53 of the worm 51.
When the locking contact _S1 side of the key switch S is closed, the drive motor 55 rotates normally via the control circuit SL, and when the unlocking contact _S2 side of the key switch S is closed, the drive motor 55 rotates normally through the control circuit SL.
It is a motor that can be used in both forward and reverse directions, rotating reversely via the SL.

As a result, the locking member 37 is rotated between the locking position and the releasing position via the worm 51 by the forward or reverse rotation of the drive motor 55, and the amount of rotation is determined by each stopper provided on the case 57.
By coming into contact with P ₁ and P ₂ , it will be positioned in each posture.

A locking contact S ₁ and an unlocking contact S ₂ of the key switch S are built into the key cylinder, and the locking contact S ₁ is closed by rotating the key switch to the right, for example. As a result, the drive motor 55 is started after the lock lever 29 is in the locked position by a timer incorporated in the control circuit SL.

Further, the unlocking contact _S2 is closed by inserting the key and rotating it slightly to the left. As a result, the drive motor 55 starts operating almost at the same time as the key is inserted, and when the key is inserted and the lock is unlocked, the lock lever 29, that is, the protrusion 47 at the first rotation position is restrained. is about to be lifted.

In addition, in FIG. 8, the other drive motors 55 are:
This figure shows an example in which a front door and a rear door are provided respectively.

Next, the operation will be explained. Since the lock member 37 is in the released position when the locking/unlocking operation using the key is not performed, the lock lever 29 can be locked/unlocked from the inside of the vehicle using the lock knob 33 without any trouble. Furthermore, when the lock lever 29 is in the unlocked position, the door can be unlocked by operating the inside handle 65 or the outside handle 63.

Next, when leaving the car, the user performs a locking operation using the key to place the lock lever 29 in the locked position. At the same time, the drive mechanism 39 operates to bring the locking member 37 into the restraining position. At this time, the lock member 37 is kept in a restrained state by the engaging portion 52, so that even if the lock lever 29 is attacked by unauthorized means, it will not be unlocked. Furthermore, when the key is inserted, the unlocking contact _S2 closes and the locking member 37 returns to the unlocking position, so by unlocking the key, the lock lever 29 is brought to the unlocking position.

Therefore, the restraint device 35 has only one simple function of restraint and release, and the door can be unlocked and opened by operating the outside handle 63.

In addition, as shown in FIG. 9, an actuator 61 is provided between the door lock device A and the restraint device 35,
It is also possible to operate it via the actuator 61.

[Effects of the invention] As explained above, according to this invention, when leaving the car, the restraint device can be restrained and released by simply pressing a key, which is a simple single function.
The structure is simple, and since the lock member and the operating lever are coaxially provided, it can be made compact. Furthermore, there is no possibility that the lock will be unlocked even if attacked by unauthorized means, which is very desirable in terms of theft prevention.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the restraint device of this invention, Figure 2
The figure is an overall schematic explanatory diagram, Figures 3, 4, and 5 are operation diagrams of the door lock device, Figure 6 is an operation diagram of the restraint device, and Figure 7 is a sectional view taken along the line B-B in Figure 1. , 8th
9 is a schematic diagram similar to FIG. 2, including an actuator, and FIG. 10 is a perspective view of a conventional door lock device. Explanation of main drawing symbols, A...door lock device, 29...lock lever, 37...lock member,...unlocked position of lock lever,...locked position of lock lever,...restricted position of lock member,...lock Release position of the member.

Claims (1)

[Scope of utility model registration request] In a door lock device equipped with a lock lever that rotates between a locked position and an unlocked position when a locking or unlocking operation is performed using a key, the door lock device is connected to the lock lever and can be rotated between a locked position and an unlocked position using a shaft as a fulcrum. an actuating lever, and a stopper that is fixed to the shaft and comes into contact with the actuating lever to operate the actuating lever from an unlocked position to a locked position, and the stopper and the actuating lever make contact to restrain the lock lever in the locked position. A lock member that can be rotated between a restraint position and a release position in which the stopper and the actuating lever are separated and the lock lever is freely operated to the unlocked position to release the restraint, and rotational power is applied in one direction only to the lock member side. A lock lever restraining device for a door lock device, characterized in that the lock lever restraining device for a door lock device is provided with a driving mechanism that rotates the locking member to a restraining position or a releasing position when the key is used to lock and unlock the door. .