JPH11303485A - Door lock device for car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure burglarproofness by integrally forming a flange wall covering a linking site with an open lever and a latch mechanism from the upper section of a car door and the outside of a car-door cabin to a base member. SOLUTION: The door lock device for the car is disposed into a car door, and constituted while having a base plate 2, a latch mechanism 3 and a lever mechanism. One arm section as a fitting site with the pole 32 of the latch mechanism 3 of a lift lever 41 is covered with the bulging section 31b of a body 31, a first flange wall 24 and a second flange wall 25 from the upper section of a car door and the outside of a car-door cabin. Consequently, the penetration to the fitting site of an improper tool, etc., is prevented, and operation by the improper tool, etc., of the lift lever 41 is obviated. The first flange wall 24 and the second flange wall 25 may also be formed integrally to the body 31. Accordingly, burglarproofness can be ensured without requiring a protector cover as another member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle door lock device.

[0002]

2. Description of the Related Art Conventionally, as this kind of vehicle door lock device, one disclosed in Japanese Patent Application Laid-Open No. 7-97882 is known.

[0003] This comprises a base member, a latch mechanism supported by the base member and holding the vehicle door to the vehicle body, and a latch mechanism rotatably supported by the base member and linked to the latch mechanism by a rotating operation. And an open lever for operating the vehicle.

In this conventional device, the linking portion between the open lever and the latch mechanism is covered by a separate cover for covering the entire device, and this protect cover prevents an unauthorized tool or the like from entering the linking portion. Thus, the antitheft property is improved.

[0005]

However, according to the above-mentioned conventional apparatus, in order to cover the linking portion between the open lever and the latch mechanism so that the linking portion is not operated by an unauthorized tool or the like, a separate member is protected. Requires a cover.
For this reason, the number of parts increases, which is disadvantageous in terms of cost. In addition, the size of the apparatus itself is increased, which is disadvantageous in terms of space.

Therefore, an object of the present invention is to ensure the anti-theft property without the need for a separate protect cover.

[0007]

In order to solve the above-mentioned technical problem, the technical means adopted in the present invention is to form a link between an open lever and a latch mechanism integrally formed on a base member, above a vehicle door and on a vehicle. That is, the door has a flange wall that covers the outside of the cabin.

According to this technical means, the linking portion between the open lever and the latch mechanism is covered by the flange wall formed on the base member, and this flange wall prevents an illegal tool or the like from entering the linking portion. This can prevent operation of the linked part.

Therefore, theft prevention can be ensured without the need for a separate cover.

[0010] More preferably, the apparatus has a lift lever rotatably supported by the base member coaxially with the open lever and connected to the latch mechanism and capable of being disengaged from the open lever. The flange wall may cover a connection portion between the latch mechanism and the lift lever.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a vehicle door lock device 1 is disposed in a vehicle door 8, and has a base plate 2, a latch mechanism 3, and a lever 3, as shown in FIG. It has a mechanism 4.

The base plate 2 has an L-shape, and its front and rear surfaces are directed to the outside and inside of the vehicle door 8 when the vehicle door lock device 1 is mounted inside the vehicle door 8 (right and left in FIG. 2). Direction) and the vertical wall 2 extending from the inner side edge (right end in FIG. 2) of the horizontal wall 21 in the vehicle interior.
2 is provided.

As shown in FIG. 3, the latch mechanism 3
It comprises a body 31, a pole 32 and a latch 33. The body 31 is fixed to the back surface of the horizontal wall 21 of the base plate 2 and accommodates the pawl 32 and the latch 33. The body 31 has an insertion groove 31a opened into the vehicle compartment for a striker 34 provided on a body (not shown) of the vehicle to enter and exit according to the opening / closing operation of a door (not shown). Have been. Pole 32 and latch 3
3 is rotatably supported on the body 31 by pins 32a and 33a, respectively. Also, the striker 3 that has entered the insertion groove 31a of the body 31 is provided on the outer peripheral surface of the latch 33.
A U-shaped groove 33b for receiving the lock 4 and an engaging claw 33c capable of being disengaged from the pawl 32 are formed. The pawl 32 engages with the engaging claw 33c of the latch 33 by its rotating operation. In the pole 32 and the latch 33 configured as described above, the striker 34
The pawl 32 and the engaging claw 33c of the latch 33 are engaged in the state of being received in the groove 33b, and the rotation of the latch 33 is regulated by the pawl 32, thereby holding the door in a closed state. The door 32 can be opened by rotating the pawl 32 to release the engagement of the latch 33 with the engaging claw 33c.

As shown in FIG. 2, the lever mechanism 4 includes
Lift lever 41, open lever 42, locking lever 43, cancel lever 44, slide bush 4
5 and a key lever 47.

The lift lever 41 is disposed on the surface of the horizontal wall 21 of the base plate 2, and is rotatably supported by a pin 32a for supporting the pawl 32 of the latch mechanism 3. The lift lever 41 is fitted to the pawl 32 by a fitting flange portion 41 a formed on one of the arms thereof, and rotates integrally with the pawl 32. Further, engaging flanges 41b and 41c are formed on one and the other arm portions of the lift lever 41, respectively.

The open lever 42 is connected to the lift lever 41
In the same manner as described above, it is arranged on the horizontal wall 21 and rotatably supported by the pin 32a. The open lever 42 is connected at one arm thereof to an outside handle 6 provided outside the vehicle door 8 via an open rod 7 (see FIG. 1). The open lever 42 has a leg portion 42b extending therefrom. The leg portion 42b connects a cable (not shown) to an inside handle 5 provided on the indoor side of the vehicle door 8 and an inside lever 46 (see FIG. 4). Four
Shown). In addition, inside lever 4
6 is a vertical wall 2 of the base plate 2 as shown in FIG.
2 is rotatably supported by a pin 46a. Further, a pin portion 42a is formed on the open lever 42. The open lever 42 is disposed around the pin 32a and has one end locked to the open lever 42 and the other end returned to the initial position by a spring 48 locked to the base plate 2 in the clockwise direction shown in FIG. It is constantly biased.

The locking lever 43 is disposed on the surface of the horizontal wall 21 and is rotatably supported on the horizontal wall 21 by pins 43a. The locking lever 43 is provided with a lock knob (not shown) provided on the indoor side of the vehicle door 8.
And the vehicle door 8 via the key lever 47.
Is connected to a key cylinder mechanism (not shown) provided on the outside of the vehicle. In the other arm portion of the locking lever 43, an arc-shaped long hole 43b centered on the pin 32a is provided.
Are formed.

The slide bush 45 is slidably supported by the other arm of the open lever 42.
The slide bush 45 has a pin portion 45 a formed therein, and is slidably inserted into the elongated hole 43 a of the locking lever 43. Also, the slide bush 45 has
An engagement protrusion 45b is formed which is detachable from the engagement flange 41c of the lift lever 41 by the rotation of the open lever 42. The slide bush 45 thus configured
Is slid with respect to the other arm portion of the open lever 42 through the insertion of the elongated hole 43b and the pin portion 45a by the turning operation of the locking lever 43.
The engagement protrusion 45 b is provided on the engagement flange 4 of the lift lever 41.
1c is located on the engagement locus or deviates from the engagement locus. As a result, a locked state and an unlocked state of the door 8 are created. The locking lever 43 is urged by a turnover spring 49 disposed between the locking lever 43 and the base plate 2 to maintain the locked state and the unlocked state.

The cancel lever 44 is swingably fitted to and supported by the locking lever 43 by a snap pin 44a integrally formed with the cancel lever 44. A long hole 44b is provided at the free end of the cancel lever 44.
The pin 42a of the open lever 42 is slidably inserted. Also, the cancel lever 43
On the free end portion, an engaging projection 44c is formed in parallel with the elongated hole 44b so as to be able to engage and disengage with the engaging flange 41b of the lift lever 41 by a rotation operation integral with the pawl 32 of the lift lever 41. Cancel lever 4 configured as above
4 is swung with respect to the locking lever 43 by the rotation of the open lever 42, whereby the engagement protrusion 4
4c is located on or off the locus of engagement of the lift lever 41 with the engaging flange 41b.
As a result, the locking operation according to the turning operation of the open lever 42, the so-called keyless entry operation, and the canceling of the locking operation are performed. That is, the door lock device 1 has a keyless entry mechanism constituted by the cancel lever 44.

The key lever 47 is arranged on the horizontal wall 21 and is rotatably supported on the horizontal wall 21 by pins 43a. The key lever 47 has an engagement protrusion 47a formed thereon. The engagement protrusion 47a is received by a notch 43c formed on the locking lever 43.
Accordingly, the turning operation of the key lever 47 is transmitted to the locking lever 43 by the contact between the wall of the notch 43 c and the engaging projection 47 a by the turning operation of the key lever 47.

Next, the lift lever 4 which is a main part of the present invention will be described.
A structure of a fitting portion between the latch mechanism 1 and the pawl 32 of the latch mechanism 3 will be described.

As shown in FIGS. 2, 4 and 5, bulging portions 31b for forming insertion grooves 31a of the body 31 of the latch mechanism 3 are formed in the horizontal wall 21 and the vertical wall 22 of the base plate 2. A cutout opening 23 is formed. The bulging portion 31b of the body 31 penetrates through the cutout opening 23 and protrudes above the surface of the horizontal wall 21, and covers the lift lever 41 from above the vehicle door (upward in FIG. 2). On the outer edge of the cabin of the horizontal wall 21 of the base plate 2,
The first flange wall 24 is integrally bent so as to extend in the surface direction of the horizontal wall 21 (upward in FIGS. 4 and 5). The first flange wall 24 is provided with a lift lever 41
Is covered from the outside of the cabin over the range of its rotational stroke. In addition, a second flange wall 25 is formed on the bulging portion 31 at the outside edge 23 a of the notch opening 23 of the horizontal wall 21.
Are formed integrally with each other so as to extend in the direction of the surface of the horizontal wall 21 along the end face of the horizontal wall 21. This second flange wall 25
A bent wall 25a orthogonal to the first flange wall 24 is formed by bending integrally with the first flange wall 24. The bent wall 25a is connected to the end face of the bulging portion 31b substantially in parallel with the lower surface of the bulging portion 31b. One arm portion of the lift lever 41 is located between the wall 24 and the upper portion of the lift lever 41 from above the vehicle door. As described above, one arm portion, which is the fitting portion of the lift mechanism 41 with the pawl 32 of the latch mechanism 3, is connected to the bulging portion 3 of the body 31.
1b, the first flange wall 24 and the second flange wall 25 cover the vehicle door from above and outside the cabin. Thus, an unauthorized tool or the like can be prevented from entering the fitting portion, and the lift lever 41 can be prevented from being operated by an unauthorized tool or the like, and the antitheft property can be secured. . The first flange wall 24 and the second flange wall 25
May be formed integrally with the body 31. Either one may be formed integrally with the body 31. Furthermore, the first
The flange wall 24 and the second flange wall 25 may be integrally continuous.

Next, the operation will be described.

FIG. 2 shows the unlocked state of the vehicle door 8. In this state, when the outside handle 6 is operated, the open lever 42 is rotated by a predetermined angle counterclockwise from the initial position shown in FIG. Be operated. When the open lever 42 rotates, the slide bush 45
Of the engaging flange 4 of the lift lever 41
1c is engaged with the lift lever 41 and the open lever 42
And the same direction. As a result, the pole 32 rotates and the vehicle door 8 in the closed state becomes openable. When the inside handle 5 is operated, the open lever 42 rotates from the initial position shown in FIG. 2 by a predetermined angle counterclockwise in FIG. 2 against the urging force of the spring 48 via the cable and the inside lever 46. Let me do. When the open lever 42 rotates, the engagement protrusion 45b of the slide bush 45 engages with the engagement flange 41c of the lift lever 41, and the lift lever 41 rotates in the same direction as the open lever 42. As a result, the pole 32 rotates and the vehicle door 8 in the closed state becomes openable.

In FIG. 2, when the locking lever 43 is rotated by operating the lock knob or the key cylinder mechanism, the slide bush 45 is slid with respect to the open lever 42. As a result, the engagement protrusion 45b of the slide bush 45 is disengaged from the engagement trajectory when the open lever 42 with the engagement flange 41c of the lift lever 41 is rotated, and the open lever 42 and the lift lever 41 swing freely. State. As a result, the vehicle door 8 in the unlocked state is locked.

In FIG. 2, when the vehicle door 8 is locked when the occupant leaves the vehicle, when the vehicle door 8 is locked by operating the lock knob, the door 8 is closed without operating the outside handle. As shown in FIG. 11, the engagement protrusion 44c of the cancel lever 44 is engaged with the engagement flange 41b of the lift lever 41, and the locking lever is rotated so that the vehicle door 8 is unlocked. . As a result, the locked state of the door 8 is canceled.

In FIG. 2, when the occupant locks the door when leaving the vehicle, the lock knob is operated to lock the vehicle door 8, and when the outside handle is operated, the vehicle door 8 is closed. The rocking lever 4 is rotated by the rotation of the open lever 42 due to the operation of the outside lever by the cancel lever 44.
3 is swung. As a result, the engagement projection 44c of the cancel lever 44 is disengaged from the locus of engagement with the engagement flange 41b of the lift lever 41, and the cancel lever 44 swings with respect to the lift lever 41. result,
There is no turning operation of the locking lever 43 to the unlocked state,
The locked state is maintained.

In the embodiment described above, the leg portion 42b linked to the inside lever 46 is formed on the open lever 42. However, this leg portion 42b is formed on the lift lever 41, and the inside handle 46 is operated. As a result, the lift lever 41 is directly rotated in the counterclockwise direction shown in FIG. 2 and the locking lever 43 is rotated via the cancel lever 45 by the rotation of the lift lever 41, so that the lock lever is closed. A so-called on-motion open function for opening the vehicle door 8 in the unlocked state in the unlocked state may be added.

[0029]

According to the present invention, since the base member is formed integrally with the flange wall which covers the linking portion between the open lever and the latch mechanism from above the vehicle door and from outside the vehicle door compartment, a separate protector cover is provided. Anti-theft property can be ensured without need. As a result, the number of parts can be reduced to reduce costs, and the vehicle door lock device itself can be reduced in size and space can be saved.

[Brief description of the drawings]

FIG. 1 is a front view of a vehicle door equipped with a vehicle door lock device according to the present invention.

FIG. 2 is a front view of the vehicle door lock device according to the present invention.

FIG. 3 is a front view showing a latch mechanism of the vehicle door lock device according to the present invention.

FIG. 4 is a side view of the vehicle door lock device according to the present invention.

FIG. 5 is a top view of the vehicle door lock device according to the present invention.

[Explanation of symbols]

 2 Base plate (base member) 3 Latch mechanism 41 Lift lever 42 Open lever 24 First flange wall (flange wall) 25 Second flange wall (flange wall) 31 Body (base member)

Claims (2)

[Claims] 1. A base member, a latch mechanism supported by the base member and holding a vehicle door with respect to a vehicle body;
A vehicle door lock device disposed in the vehicle door having an open lever rotatably supported by the base member and linked to the latch mechanism to operate the latch mechanism by a rotation operation; A door lock device for a vehicle having a flange wall integrally formed with a member and covering a link between the open lever and the latch mechanism from above the vehicle door and outside the vehicle door compartment. 2. A lift lever rotatably supported by the base member coaxially with the open lever and connected to the latch mechanism and detachable from the open lever. The vehicle door lock device according to claim 1, wherein the flange wall covers a connection portion between the latch mechanism and the lift lever.