JP3135217B2 - Door lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device which is applied to an automobile door and has excellent security.

[0002]

2. Description of the Related Art Conventionally, as a door lock device applied to an automobile, for example, a door is changed from a locked state to a super locked state by a key operation, and a wire or the like is inserted through a gap in a window to operate an inner lock knob. In some cases, the door cannot be unlocked (see Japanese Patent Application Laid-Open No. 3-158583).

That is, in this door lock device, FIG.
As shown in FIG. 1, a lock device main body 2 is provided in the door 1, and the door 1 can be opened via a rod 3a (one not shown) by operating an outer handle 3 and an inner handle (not shown). It has become. A support plate 4 is provided in the door 1 separately from the lock device main body 2, and a sub-lever 5 is attached to the support plate 4 so as to be rotatable about a support shaft 5a. As shown in FIG. 8, the support plate 4 has an elongated hole 4a extending vertically.
Are formed. The sub-lever 5 has a substantially V
A letter-shaped guide hole 5b is formed. The sub-lever 5 is moved up and down by the inner lock knob 6.
Rotating through the rod 7a through the rod 6a and by the rotation of the key cylinder 7 by the key,
The lock device main body 2 is driven via the rod 8.

In the door lock device, when the sub lever 5 is turned to the position shown in FIG. 8A by a key operation or an inner lock knob lock operation from the unlocked state shown in FIG. The protrusion 6b is located at the lock position m of the guide hole 5b. When the inner lock knob 6 is unlocked in this locked state, the projection 6b presses the edge 5c of the guide hole 5b, and the sub lever 5
Can be turned to the original position. When the sub-lever 5 is turned to the position shown in FIG. 8B by a key operation from the locked state, the protrusion 6b of the rod 6a is located at the super-lock position n of the guide hole 5b. For this reason, even if the inner lock knob 6 is unlocked, the edge 5c of the guide hole 5b cannot be pressed, and the door cannot be opened by swinging.

[0005]

However, in the door lock device, it is necessary to provide the support plate 5 having the sub-lever 5 separately from the lock device main body 2, so that the number of parts increases, the structure becomes complicated, and the assembling is performed. There is a problem of poor sex. Further, when the door is deformed due to a collision or the like and the key cylinder 7 attached to the door moves, the rod 8 is pulled, and the sub-lever 5 is rotated to the super lock position, so that the inner lock knob 6 is operated. There is a risk that it will not return to the unlocked state just by swinging. At this time, if the rods 6a, 7a, 8 bend due to a collision or the like in a state where the door is in the super locked state from the inside, there is a problem that the door cannot be opened depending on the degree of bending.

Accordingly, the present invention provides a door lock device which is excellent in assemblability as well as in the prevention of theft and can reliably open the door even if the rod is deformed due to a collision or the like. That is the task.

[0007]

In order to achieve the above object, according to the present invention, a door lock device is mounted on a base so as to rotate between a lock position and an unlock position, and an inner lock knob is provided. A first lock plate connected to the base; a second lock plate attached to the base so as to rotate between a lock position and an unlock position; and a second lock plate connected to an outer handle or an inner handle. Position, an unlocked position, and an actuator lever mounted to rotate to a super-lock position, one end of which engages with the actuator lever, and the other end of which engages with the guide of the base. And a link connected to the second lock plate, and a member mounted on the base to protect the members, the first guide portion and A structure in which a cover having a second guide portion continuous to the first guide portion, the engagement portion of the link, locking the position of the actuator lever
The first guide portion is moved according to the rotation between the unlock position and the second guide portion is moved according to the rotation between the lock position and the super lock position. When the first lock plate is located at the super lock position, the first lock plate is turned to the unlock position side so that the second lock plate cannot be turned.

[0008]

A key lever is attached to the base so as to rotate between a locked position and an unlocked position.
It is preferable to form a stopper so that the key lever does not rotate from the lock position to the super lock position.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a plan view of a door lock device according to the present invention, and FIG. 2 is an exploded perspective view thereof. This door lock device is disposed in a door (not shown), and generally includes a cover 10.
The push lever 12, the open operation lever 13, the open lever 14, the key lever 15, the actuator lever 16, the first lock plate 17 and the second lock plate 18 are sequentially mounted on the base 11 to which the open operation lever 13 and the open lever 14 are attached. Are connected by a first link 19, and the cover 10, the second lock plate 18
And the actuator lever 16 is connected by a second link 20.

A guide groove 21 is formed in the cover 10. The guide groove 21 is substantially V-shaped, and the first guide hole 2
1a and a second guide hole 21b continuous with the first guide hole 21a. The first guide hole 2
An end of 1a is an unlock position a, a continuous portion of the first guide hole 21a and the second guide hole 21b is a lock position b, and an end of the second guide hole 21b is a super lock position c. The guide groove 21 does not necessarily need to be formed in the cover 10, but may be formed in the base 11.

The base 11 is fixed to the cover 10 and has a first vertical wall 22a and a second vertical wall 22b. The second vertical wall 22b forms a stopper for the key lever 15 of the present invention.

The push lever 12 is provided on the first
It is attached to the vertical wall 22a so as to be rotatable around the support shaft 12a, and is connected to an inner handle (not shown).

The open operation lever 13 is attached to the base 11 so as to be rotatable around a support shaft 13a. One end of the open operation lever 13 is in contact with one end of the push lever 12. The other end of the open operation lever 13 is connected to the outer handle. As a result, the open operation lever 13 can be moved by the inner handle via the push lever 12 or by operating the outer handle.
And rotates clockwise in FIG.

The open lever 14 is substantially L-shaped, and is attached to the base 11 so as to be rotatable about a support shaft 14a. One end of the open lever 14 is provided with a press receiving portion 2.
3 are formed. The open lever 14 rotates integrally with a latch (not shown) provided on the back surface of the base 11. When the open lever 14 rotates clockwise, a latch (not shown) is released from the fork, the engagement between the fork and the striker is released, and the door is opened.

One end of the first link 19 is rotatably connected to one end of the open operation lever 13 (near the portion to which the outer handle is connected), and the other end of the first link 19 is described later. A long hole 25 in which the projection 24 provided on the two lock plate 18 is slidably engaged, and a pressing portion 26 for pressing the pressing receiving portion 23 of the open lever 14 in the vicinity thereof are formed.

Key lever 15, first lock plate 17
And the second lock plate 18 around the support shaft 27.
The actuator lever 16 is centered on a support shaft 16a.
Each is rotatably attached to the base 11.

The key lever 15 has one end connected to a key rod 28 linked to a key cylinder (not shown), and the other end formed with a pressing portion 15a. The key lever 15 is connected to the second vertical wall 22b of the base 11 serving as a stopper.
Thus, rotation in the counterclockwise direction in the drawing is prevented at a predetermined position.

The actuator lever 16 rotates about a support shaft 16a by driving an actuator (not shown). On the other end of the actuator lever 16, a projection 29 and a recess 30 are formed on opposite surfaces, respectively. The actuator lever 16 is rotated by driving the actuator by a remote controller (not shown).

The first lock plate 17 has a first elongated hole 31.
And a locking tongue 33 to which one end of the return spring 32 is locked. A rod 34 extending from an inner lock knob (not shown) is connected to one end.

The second lock plate 18 has, at one end thereof, a projection 2 slidably engaged with an elongated hole 25 of the first link 19.
4, a second elongated hole 35 is formed in the middle part, and a first connection hole 36 is formed in the other end part. Also, the support shaft 27
A locking portion 37 is formed at an outer edge in the vicinity of. And the first
The lock plate 17 and the second lock plate 18 are maintained in a predetermined positional relationship by the return spring 32. When one of the lock plates 17 rotates, an urging force opposite to the rotation direction acts on the other. It has become.

The second link 20 is connected at one end thereof to the guide groove 21 of the cover 10 through a first elongated hole 31 of the first lock plate 17 and a second elongated hole 35 of the second lock plate 18.
And a second shaft 39 that engages with the recess 30 of the actuator lever 16 on the opposite surface. Further, a second connecting hole 40 is formed at the end opposite to the shafts 38 and 39, and the support shaft 41 is inserted together with the first connecting hole 36 of the second lock plate 18 so that the two can be rotated. It is movably connected.

An action knob 42 is provided on the surface of the base 11 opposite to the members, in addition to the return spring 32. This action knob 42
Protrudes and retracts between the lock position b of the guide groove 21 and the super lock position c, and positions the first shaft 38 of the second link 20 at the super lock position c.

In the door lock device constructed as described above, if no key, inner lock knob or remote control device is operated with the door closed, as shown in FIG. 1, the door remains unlocked. Therefore, when the outer handle or the inner handle is operated, the open operation lever 13 rotates clockwise and the first link 1
9 moves downward, and its pressing portion 26 is
4 is pressed, and the open lever 14 is rotated clockwise, whereby the latch is rotated, the striker is dropped, and the door is opened.

Further, if there is a lock operation by a key, an inner lock knob or an actuator, the door lock device drives the door to be in a locked state.

That is, when a key operation is performed, as shown in FIG. 3, the key lever 15 rotates counterclockwise about the support shaft 27, and the pressing portion 15a presses the projection 29 of the actuator lever 16. Then, the actuator lever 16 is rotated clockwise about the support shaft 16a. Thereby, the second link 2 is connected via the second shaft 39 engaged with the concave portion 30 of the actuator lever 16.
0 moves in the arrow x direction in FIG. At this time, since the first guide hole 21a of the guide groove 21 is located along the moving direction of the first shaft 38, the movement of the second link 20 is not hindered. As a result, the second lock plate 18 rotates counterclockwise about the support shaft 27,
When the first link 19 moves to the left, the pressing portion 26 is separated from the pressing receiving portion 23 of the open lever 14. Therefore, even if the first link 19 is moved downward by operating the outer handle or the inner handle, the pressing portion 26 swings and the open lever 14 maintains its position, so that the door is locked.

When the inner lock knob is operated, the first lock plate 17 rotates counterclockwise about the support shaft 27, and the second lock plate 17 passes through the first shaft 38 located in the first elongated hole 31. The link 20 and the second lock plate 18 also rotate in the same direction. Then, by the rotation of the second lock plate 18, as in the case of the key operation, the first
The link 19 moves to the left and the door is locked.

When an operation (lock operation) of the remote controller is performed, the actuator is driven, and as shown in FIG.
The actuator lever 16 rotates clockwise about the support shaft 16a by a predetermined angle α. As a result, similarly to the case of the key operation or the inner lock knob operation, the second link 20 moves via the second shaft 39 engaging with the concave portion 30, and the key operation or the inner lock knob operation is performed. Similarly, the first link 1
9 moves to the left and the door is locked.

Further, if the remote controller is operated (super lock operation), as shown in FIG. 5, the door enters a super lock state in which the lock state cannot be released by the inner lock knob operation. That is, when the remote controller is operated (super lock operation), the actuator is driven, and the actuator lever 16 is further rotated by a predetermined angle β as compared with the lock operation. As a result, the first shaft 38 of the second link 20 is
To the super lock position c along the second guide hole 21b. Therefore, as shown in FIG. 6, even if the first lock plate 17 is rotated by operating the inner lock knob, the first shaft 38 is located at the right end of the first elongated hole 31 in FIG. The two links 20 cannot be moved. Therefore, since the second lock plate 18 maintains its position, even if a wire or the like is inserted through a gap in the window glass and the inner lock knob is operated, the door is maintained in the locked state.
Further, even if the door is deformed due to a collision or the like and the position of the key cylinder is moved and the key rod 28 is pulled, the key lever 1 is not moved.
5 is prevented from moving by the second vertical wall 22b of the base 11, and does not enter the super lock state. Therefore, the door can be unlocked by operating the inner lock knob, and the door can be opened by operating the inner handle from inside the door.

It is conceivable that the key lever 15 is kept moving to the lock side due to the movement of the key cylinder, but this state rarely occurs. When the deformation of the door is small, the door is returned to a certain extent by the elastic force, so that the door can be unlocked. Further, even if the deformation of the door is large, the key rod portion is broken, so that the door can be easily unlocked. Even if such a state occurs, since the state is not the super-lock state, the unlock state can be achieved by forcibly operating the inner lock knob.

[0032]

As is apparent from the above description, according to the door lock device of the present invention, the door can be placed in the super lock state by the guide portion and the engaging portion of the link attached to the base. This eliminates the need for a conventional support plate, etc., and reduces the number of parts.
It is possible to improve the assemblability to the door. Also,
Since the super-lock state is maintained by the rotation of the actuator lever, the door cannot be opened even if the rod connecting the key cylinder or inner lock knob and the door lock device is bent, as in the past. There is no.

[Brief description of the drawings]

FIG. 1 is a plan view showing an unlocked state of a door lock device according to the present invention.

FIG. 2 is an exploded perspective view of the door lock device of FIG.

FIG. 3 is a partial plan view showing a state where the door is opened in the door lock device of FIG. 1;

FIG. 4 is a partial plan view showing a door lock state of the door lock device of FIG. 1;

FIG. 5 is a partial plan view showing a super locked state of the door lock device of FIG. 1;

FIG. 6 is a plan view showing a state where an inner lock knob is operated in FIG. 5;

FIG. 7 is a schematic view of a door equipped with a door lock device according to a conventional example.

FIG. 8 is a partial plan view of FIG. 7;

[Description of Signs] 16 Actuator lever 17 First lock plate 18 Second lock plate 20 Second link 21a First guide hole 21b Second guide hole 38 First shaft

Claims (2)

(57) [Claims] A base, a first lock plate attached to the base so as to rotate between a lock position and an unlock position, and connected to an inner lock knob; and a lock position and an unlock position on the base. A second lock plate connected to an outer handle or an inner handle, and an actuator lever mounted to the base so as to rotate to a lock position, an unlock position, and a super lock position. And a link connected at one end to the actuator lever, an engagement portion at the other end to the guide portion of the base, and connected to the second lock plate; A first guide portion and a cover having a second guide portion continuous with the first guide portion. An engagement portion of the link moves the first guide portion in accordance with the rotation of the actuator lever between the lock position and the unlock position, and moves the second guide portion in response to the rotation between the lock position and the super lock position. The engaging portion is moved to the second
When the guide portion is located at the super lock position, the rotation of the first lock plate toward the unlock position causes
A door lock device wherein the second lock plate is not rotatable. 2. A key lever is attached to the base so as to rotate between a lock position and an unlock position, and a stopper is formed so that the key lever does not rotate from the lock position to the super lock position. The door lock device according to claim 1, wherein