JP2527580Y2 - Door lock device for automobile - 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 for an automobile, and more particularly to a lock device designed to increase strength.

[0002]

2. Description of the Related Art In a motor vehicle, a lock device is provided on a door so that the door can be locked in order to ensure safety during traveling and prevent theft.

Normally, in this type of lock device, when the door is closed, the fork on the device body side is swung by a striker, the striker is engaged with the fork to lock the door, and at the same time, the claw lever is swung and engaged. In general, the fork is locked by swinging the claw lever by an unlocking operation to return the fork, and the engagement of the striker is released.

[0004]

However, in the conventional door lock device, a space for disposing other components is provided between the cover and the base for pivotally supporting the fork and the claw lever. If, for some reason, a strong impact is applied to the locked door in the opening direction and the striker is strongly pulled, the fork shaft and the craw lever shaft are also strongly pulled inward each other, so that both shafts fall inward and the shaft is There is a possibility that the cover or the base supporting the base may be deformed or the base may be cracked.

[0005] In addition, due to its structure, there is a possibility that the engagement between the fork and the claw lever may be displaced in the plate thickness direction due to a manufacturing error, an assembly error, or a large load acting for some reason.

In view of the above problems, the present invention provides an automobile door lock device that can surely prevent the shaft from falling down and, if necessary, prevent the engagement between the fork and the claw lever in the plate thickness direction. That is the task.

[0007]

Therefore, in the door lock apparatus for an automobile according to the present invention, the fork of the apparatus body is swung by the striker, the striker is engaged with the fork to lock the door, and the claw lever is moved. In a door lock device in which the fork is locked by swinging engagement and the fork is returned by swinging the claw lever during an unlocking operation to release the engagement of the striker, a door lock device is provided between the base and the cover. A fork and a claw lever are pivotally supported to constitute a main body of the apparatus, and a safety plate having a holding portion between a base and a cover at a position corresponding to a position where the fork and the claw lever are engaged is provided on the fork and the claw lever. Forks, which are interposed directly adjacent to each other, and each of which has a flange on the safety plate And have claw lever shaft to be inserted and supported, respectively.

Here, since other components are usually accommodated between the cover and the fork and the claw lever, the safety plate is connected to the cover in order to reliably prevent the shaft from falling down. The fork and the claw lever are provided between the fork and the claw lever, and the safety plate is sandwiched between the fork shaft and the claw lever shaft each flange and the base.

Further, in order to prevent a displacement of the fork and the claw lever from being engaged due to a manufacturing error, an assembly error, or a large load, a holding plate is provided at a position where the fork and the claw lever are engaged. It is only necessary to hold the engagement between the cover and the base. In this case, the cover plate may be integrally formed or attached to the cover, but in the present invention, since the safety plate is provided, It is better to use.

That is, a pressing portion is formed at a position corresponding to the position where the fork and the claw lever are engaged with each other on the safety plate, and the engagement between the fork and the claw lever is sandwiched between the pressing portion and the base.

[0011]

In the present invention, since a safety plate is provided between the base and the cover for pivotally supporting the fork and the claw lever, a large impact acts on the locked door in the opening direction, and the striker pulls on the apparatus body. Even when a large load is applied in the direction, the load is distributed to the cover, the safety plate, and the base.
Moreover, the fork shaft and the claw lever shaft are firmly supported, and the fork and the claw lever and the safety plate are sandwiched between the respective flange portions of the fork shaft and the craw lever shaft and the base, respectively. The cover, safety plate and base are deformed,
The fork shaft and claw lever shaft hardly fall inward.

Further, since the holding portion is formed on the safety plate, and the meshing portion between the fork and the claw lever is sandwiched between the holding portion and the base, the meshing portion is securely guided and shifts in the plate thickness direction. Few things.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to specific examples shown in the drawings. 1 to 3 show an automobile door lock device according to an embodiment of the present invention. In the drawing, a fork 4 and a claw lever 5 are disposed between a base 2 and a cover 3 of the apparatus main body 1. The fork 4 and the claw lever 5 swing on the base 2 and the cover 3 by shafts 40 and 50. It is freely supported, and the fork shaft 40 and the claw lever shaft 50 are fixed to the base 2 and the cover 3 by caulking. Also, fork 4 and claw lever 5
The spring locking portions 43 and 52 are bent in the
A spring member 8 is provided between the members 3 and 52 so as to urge them. The fork 4 and the claw lever 5 are provided so as to mesh with each other at the meshing portions 42 and 51 when locked.

A striker 7 is provided on the lower edge of the base 2.
Is formed, and the fork 4 is formed with a locking recess 41 for locking the striker 7,
Further, the guide groove 10 is provided between the base 2 and the cover 3.
A guide block 90 for guiding the insertion of the striker 7 at an edge of the striker 7 and a rubber 91 for absorbing impact when the striker 7 is inserted and preventing abnormal noise due to rattling of the striker 7 are interposed.

Further, a safety plate 6 is disposed between the cover 3, the fork 4 and the claw lever 5, and the fork shaft 40 and the craw lever shaft 50 are inserted and supported by the safety plate 6, and A wide pressing portion 60 is formed on the safety plate 6 at a position corresponding to the position where the fork 4 and the claw lever 5 are engaged. The engaging portion between the fork 4 and the claw lever 5 is formed by the pressing portion 60 and the base 2. It is pinched.

Although other components are provided in the apparatus main body 1, their description and illustration are omitted since they are not directly related to the present invention.

Next, the function and effect will be described. When the door is open, the fork 4 has its locking recess 41 opened outward (downward in FIG. 1), and the claw lever 5 is pulled by the spring member 8 so that the lower part of the engagement portion 51 is forked. It is abutted and locked on the upper part of the four meshing part 42. When the door is closed in such a state, the striker 7 slides along its axis 70 to move the guide block 9.
The fork 4 is fitted into the guide groove 10 while being guided by the fork 4 and abuts against the inner edge of the locking recess 42 of the fork 4 to swing the fork 4 clockwise around its axis 40, whereby the claw lever 5 is moved It is swung counterclockwise around the axis 50.

When the door is completely closed, the striker 7
Is elastically held by the rubber 91, the fork 4 turns the locking recess 41 in the lateral direction as shown in FIG. 1, and the striker 7 is locked in the locking recess 41 and the guide groove 10 of the base 1. At the same time, the meshing portions 42 and 50 of the fork 4 and the claw lever 5 substantially coincide with each other, and the claw lever 5 is pulled by the tensile force of the spring member 8 and swings clockwise to mesh with the meshing portions 42 and 50 of both. The fork 4 is locked by the claw lever 5, thereby locking the door.

On the other hand, when the unlocking operation is performed, the claw lever 5 swings counterclockwise, and the meshing portion 50 of the claw lever 5 kicks up the meshing portion 42 of the fork 4, and the meshing portion 42 comes off. As a result, the fork 4 is unlocked, and the fork 4 swings back to its original state by the spring force of the spring member 8 so that the striker 6 can be disengaged, whereby the door is unlocked. 7 slide along the axis 70 while the guide grooves 10
Move away from

In the above-mentioned locked state, when a large impact acts on the door in the opening direction and a large load is applied to the striker 7 in the pulling direction, the fork shaft 40 and the claw lever 50 are also pulled inward. Acts on the cover 3
In addition, the base 2 may be deformed and the shafts 40 and 50 may fall down.

On the other hand, in the present apparatus, since the safety plate 6 is provided between the base 2 and the cover 3, even if a large load in the pulling direction is applied to the striker 7, the cover 3, the safety plate 6, and the base 2 Since the load is distributed to the user and the fork shaft 40 and the claw lever shaft 50 are firmly supported, the cover 3, the safety plate 6, and the base 2 are deformed, or the fork shaft 40 and the craw lever shaft 50 are It hardly falls down, and as a result, the durability and reliability of the device can be improved.

In the present apparatus, the safety plate 6
A pressing portion 60 is formed on the fork 4 and the claw lever 5 between the pressing portion 60 and the base 2.
Since the pin 51 is sandwiched, the engaging portions 42 and 51 hardly shift in the plate thickness direction due to a manufacturing error, an assembly error, or a large load due to any cause, and the reliability of the apparatus can be improved.

[0023]

As described above, according to the door lock device for an automobile according to the present invention, a safety plate is interposed between a base and a cover that supports a fork and a claw lever, and the fork shaft and the safety plate are attached to the safety plate. The claw lever shaft is inserted and supported, and the fork and craw lever and the safety plate are sandwiched between the respective fork shaft and craw lever shaft flanges and the base. To improve durability and reliability, and a holding part is formed on the safety plate, and the engagement between the fork and claw lever is sandwiched between the holding part and the base, further improving reliability. There is an effect that can be done.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part of an automobile door lock device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device main body 2 Base 3 Cover 4 Fork 40 axis 5 Claw lever 50 axis 6 Safety plate 60 Holding part 7 Striker

Claims (1)

(57) [Scope of request for utility model registration] A fork (4) of an apparatus body (1) is swung by a striker (7), the striker (7) is engaged with the fork (4) to lock a door, and a claw lever ( 5) is rocked to lock the fork (4), while the claw lever (5) is unlocked during the unlocking operation.
The fork (4) is returned by the swing of the door to release the engagement of the striker (7), wherein the device body (1) is connected between the base (2) and the cover (3). The fork (4) and the claw lever (5) are pivotally supported, and the base (2) and the cover (3) are engaged with the fork (4) and the claw lever (5). A safety plate (6) having a holding part (60) at a position equivalent part
Is provided directly adjacent to the fork (4) and the claw lever (5), and the safety plate
A fork shaft (40) and a claw lever shaft (50) each having a brim portion are inserted and supported in (6), respectively, and the fork (4) and the claw lever (5) and the safety plate (6) are Each of the collars of the fork shaft (40) and the claw lever shaft (50) is held between the base (2), and the meshing portion between the fork (4) and the claw lever (5) is the pressing portion. An automobile door lock device characterized by being sandwiched between a base (60) and a base (2).