JPH0223740Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improved automobile door lock device that prevents the locking operation when the door is opened.

Conventional car door lock devices are so-called keyless devices, which allow you to lock the door without using a key by first locking the lock knob inside the vehicle with the door open, then closing the door while operating the outside handle to open the door. There are two types of locking mechanisms: one that can be locked, and the other is a so-called knob block mechanism that prevents the locking knob from being locked when the door is open, making keyless locking impossible.

However, while the former type of vehicle can be operated with a keyless lock, it is easy to lock the vehicle, but there is a problem in that it is easy to cause an accident in which the key is forgotten inside the vehicle and the door cannot be opened again. In view of this, the latter type of door lock that does not allow keyless lock operation is effective in preventing keys from being forgotten inside the vehicle, but this door lock device is connected to the lock knob via a connecting member when the door is open. By engaging the knob lever with the latch or open lever,
The structure restricts the movement of the lock knob in the locking direction, so if you accidentally lock the lock knob when the door is open, excessive load will be placed on the connecting member that connects the lock knob and the lock device, as well as the knob lever and key lever inside the lock device. In addition, there is a problem that the connecting member, knob lever, etc. may be deformed.

The present invention was developed by focusing on these conventional problems, and has a structure that prevents the locking operation when the door is opened, which is effective in preventing forgetting the key. The aim is to solve the above problems by absorbing

In order to achieve this purpose, in the present invention, the stopping position of the pole that locks the latch is made different between the door closing position and the door opening position, and can be reversed between the locking position and the unlocking position in conjunction with the locking/unlocking operation. An auxiliary lever is provided on the key lever, and a biasing force greater than the turnover spring acting on the key lever is applied to the auxiliary lever, and a locked part is provided, and the open lever, which rotates together with the pole, is placed in the door opening position. A locking portion that enters the movement trajectory of the locked portion and retreats outside the movement trajectory of the locked portion at the door closing position is provided, and the locking portion is locked when the door is locked in the open state. and the key lever is returned from the locked position to the unlocked position by the biasing force applied to the auxiliary lever, and an overload resulting from the locking operation of the lock knob when opening the door is applied to the key lever, etc. This makes it possible to prevent the locking operation when the door is open.

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

1 to 6 show an embodiment of the present invention, in which a base plate 11 is fixed to one side of a body 10 of a door lock device 1, and a fork pivotally attached to the body 10 is provided inside. A shaped latch L and a pole P are provided.

As shown in Figures 3 and 4, the latch L has
A locking surface L1 that holds the pole P in the open position when the door is open, a half-latch engagement portion L2 that is locked by the tip locking portion P1 of the pole P in the half-latched position, and a tip locking portion in the full-latched position. A full latch engagement part L3 is formed to be locked by P1, and a U-shaped engagement part L4 is to be engaged with and disengaged from a striker S fixed to the vehicle body. ), and in the unlocked position, the full latch engaging portion L3 is in contact with a stopper 12 fixedly attached to the body main body 10.

As shown in FIGS. 1 and 2, on the base plate 11 side, there is a body main body 10 integrated with the pole P.
The stopper engaging portion 2 is pivoted by a spring 21.
2 is a stopper 1 formed on the base plate 11;
An open lever 2 is provided which is biased in a direction (counterclockwise) so as to come into contact with the open lever 3 . When the open lever 2 is in the door open state, the end locking portion P1 of the pole P is locked by the locking surface L1 of the latch L, so that the stopper engaging portion 22 is spaced apart from the stopper 13 when the door is opened. Position (Figures 1 and 5)
(position shown in the figure), and the tip locking part P1 is the half latch engaging part L2 and the full latch engaging part L3.
In the closed door state where the stopper 13 is locked, the stopper engaging portion 22 is in the closed door position (sixth
location shown).

An outside lever 3 is pivotally supported on the base plate 11 and can be rotated clockwise by opening an outside handle (not shown) provided on the outer surface of the door. A sub-lever 4 is connected to the sub-lever 4 which is slidable in the vertical direction on the cover plate 11 in conjunction with the rotation of the outside lever 3. By rotating the outside lever 3 clockwise, the sub-lever 4 retracts the end locking portion P1 of the pole P in the closed state (the state shown in FIG. 4) from the full-latching engagement portion L3 of the latch L. The operating protrusion 4
1 can be engaged with the bending part 23 of the open lever 2 (the position shown in FIG. 1), and the operating protrusion 41 is retracted out of the engagement locus with the bending part 23 and is folded. It can be displaced to a locked position (the position shown in FIG. 6) where it cannot engage with the bent portion 23. moreover,
The sub-lever 4 is attached to the position (the position shown in FIG. 1) where the locking portion 42 abuts against the stopper 14 formed on the base plate 11 by the spring 31 that urges the outside lever 3 counterclockwise. Forced.

Further, a key lever 5 is pivotally supported on the base plate 11 by a pivot shaft 54, which can swing between an unlocked position and a locked position by key operation. A pin 51 is fitted into an elongated hole 43 formed in the sub-lever 4 to connect it to the sub-lever 4, whereby the key lever 5 can move the sub-lever 4 to the locked position and the unlocked position by key operation. It is configured to allow In addition, the key lever 5
is a lock knob installed inside the vehicle (not shown)
The locking/unlocking operation can also be reversed between the locked position and the unlocked position via the knob lever 7 pivotally supported on the side wall surface 15 of the base plate 11.

The key lever 5 is provided with a turnover spring 52, and the spring 52 biases the key lever 5 toward the unlocked position and the locked position with respect to the dead center, respectively, so as to perform a turnover action on the key lever. 5 and base plate 11
It is being constructed at.

Further, an auxiliary lever 6 is pivotally attached to the pivot shaft 54, and a larger biasing force than the turnover spring 52 is applied to the auxiliary lever 6. That is, between the spring hook part 61 of the auxiliary lever 6 and the spring hook part 53 of the key lever 5, there is an extension spring member 62 having a larger biasing force than the turnover spring 52. It is constructed in such a way that

The open lever 2 is formed with a locking portion 24 that locks a locked portion 63 formed on the auxiliary lever 6, and when the open lever 2 is in the door opening position, the key lever 5 is in the unlocking position. The locking portion 24 enters the movement trajectory of the locked portion 63 when rotating from the position to the locked position, and when the open lever 2 is in the door closing position, the locking portion 24 retreats out of the trajectory. An open lever 2 and an auxiliary lever 6 are disposed on the holder. As a result, when the lock knob is operated while the door is open, the fifth
As shown in the figure, the locking part 24 locks the locked part 63, so even if only the key lever 5 is displaced toward the locked position while the extension spring member 62 is extended, the key lever 5 will be able to extend as soon as the lock knob is released. When the locking knob is operated to return to the unlocked position by the tensile force of the spring member 62 and in the closed state, the locking portion 24 retreats from the locus of movement of the locked portion 63 as shown in FIG. Therefore, the auxiliary lever 6 is reversed together with the key lever 5 to the locked position side, and the key lever 5 is rotated by the action of the turnover spring 52.
is configured to be held in the locked position.

In the automobile door lock device 1 having the above configuration, when the door is open, the locking surface L1 of the latch L locks the tip locking portion P1 of the pole P as shown in FIGS. 1, 3, and 5. Since the opening lever 2 is stopped, the open lever 2 is in the door opening position where the stopper engaging portion 22 is spaced apart from the stopper 13. When the lock knob is operated in the open state, the fifth
As shown in the figure, the locking portion 24 of the auxiliary lever 5, which has entered the movement locus of the locking portion 63, is rotating from the unlocked position to the locked position together with the key lever 5. Therefore, only the key lever 5 is displaced toward the locked position while the extension spring member 62 is extended, and when the lock knob is released, the key lever 5 is locked.
is returned from the locked position to the unlocked position by the tensile force of the extension spring member 62, which has a larger biasing force than the turnover spring 52.

That is, even if the lock knob is operated by mistake when the door is open, the extension spring member 62 will only be extended, and when the lock knob is released, the extension spring member 62 will be extended.
Since the key lever 5 is returned from the locked position to the unlocked position by the tensile force, the locking operation in the open state is prevented.

Next, in the door closed state, the pole P is rotated from the door open position shown in FIG. , stopper engagement part 2
2 is in the closed door position in contact with the stopper 13. When the lock knob is operated to lock the door in the closed state, the locking portion 24 of the open lever 2 is retracted out of the movement trajectory of the locked portion 63 of the auxiliary lever 6, so that the auxiliary lever 6 is closed as shown in FIG. is reversed to the locked position together with the key lever 5, and the key lever 5 is held in the locked position by the action of the turnover spring 52. In conjunction with the reversal of the key lever 5 to the locked position, the sub-lever 4 connected to the key lever 5 moves from the unlocked position shown in FIG.
Move to the locked position shown in the figure.

According to the automobile door lock device according to the present invention, even if the lock knob is accidentally locked while the door is open, the key lever operates against the urging force acting on the auxiliary lever disposed on the key lever.
When the lock knob is released, the key lever is returned from the locked position to the unlocked position by the biasing force acting on the auxiliary lever, so the connecting member that connects the lock knob and the lock device, the key lever in the lock device, the knob lever, etc. No overload is applied due to erroneous operation of the lock knob, and locking operation by the lock knob when the door is open is prevented, thereby effectively preventing forgetting the key.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention, in which FIG. 1 is a plan view, FIG. 2 is a view taken in the direction of the arrows in FIG. 1, and FIGS. 5 and 6 are diagrams explaining the internal operation. DESCRIPTION OF SYMBOLS 1... Automobile door lock device, 2... Open lever, 5... Key lever, 6... Auxiliary lever, 24... Locking part, 52... Turnover spring, 62... Extension spring member, 63... Covered Locking part, L...latch, P...pole.

Claims (1)

[Scope of utility model registration request] The stopping position of the pole that locks the latch is made different between the door closing position and the door opening position, and an auxiliary lever is provided on the key lever that can be reversed between the locking position and the unlocking position in conjunction with the locking/unlocking operation, and A biasing force larger than the turnover spring acting on the key lever is applied to the lever, and a locked part is provided, and the open lever, which rotates together with the pawl, enters into the locus of movement of the locked part at the open position. In addition, a locking part is provided that retreats out of the movement trajectory of the locked part in the closed door position, and when the door is opened and the lock is operated, the locking part locks the locked part and turns the key lever into an auxiliary lever. A door lock device for an automobile, characterized in that the door lock device is returned from a locked position to an unlocked position by an applied biasing force.