JPH089332Y2 - Door lock device with position detection switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a door having a position detection switch provided with a switch capable of detecting each position corresponding to the open / closed state of a door of a meshing mechanism in a door lock device. Regarding locking device.

[Conventional technology]

In recent years, when the car door is closed for safety reasons,
The electric motor operates to move the anchor portion of the seat belt rearward, thereby restraining the occupant in the seat. So-called passive seat belt devices are provided.

In such a passive seat belt device, a detection device for electrically detecting the open / closed state of the door is required. Therefore, conventionally, the body has a door open / closed detection switch that is turned on / off in conjunction with opening / closing of the door. It is known that the door lock device is provided with a detection switch.

An example of the latter is a detection switch disclosed in Japanese Utility Model Publication No. 61-22011.

This switch is installed in the housing part of the body that houses the engagement mechanism such as the latch member that engages and disengages with the striker on the vehicle body side, and makes sliding contact with the cam surface formed on the outer periphery of the latch member to detect the opening and closing of the da. It has become.

[Problems to be solved by the device]

In the case where the body lock of the door lock device is provided with the detection switch as in the above-described conventional case, the engagement mechanism such as the latch member must be assembled after the switch is first assembled in the body storage in the assembly process. As a result, the workability of assembling the meshing mechanism becomes poor, and if the switch causes a detection failure for some reason, after the meshing mechanism is assembled in the body storage part, the body storage part is covered with the cover. Therefore, since it is not possible to replace the parts of the switch alone, it is unavoidable to replace the entire door lock device, which leads to an increase in the cost of parts replacement.
There is also a problem that it is not preferable in saving resources.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a door lock device including a position detection switch with improved assembly and repair work.

[Means for solving the problem]

To achieve the above object, the device of the present invention accommodates a meshing mechanism for engaging and disengaging a striker to open and close the door in a storage part of a door lock body, and the body cooperates with a cam surface formed in the meshing mechanism. Then, in a door lock device in which a switch pivotally mounted with a detection lever for detecting the open / closed state of a door is provided, an insertion hole having a locking portion is formed at a proper position through a storage portion in a wall of a body. By forming elastically deformable claws on the switch case, inserting the switch detection lever into the insertion hole, and engaging the locking part with the claws, the switch can be retained on the body and removed. The feature is that it can be installed as much as possible.

[Action]

Insertion hole (9) in the body (2) of the door lock device (1)
After the case (10a) of the switch (10) is fitted into the storage portion (2a), the claw portion (10c) is elastically deformed and then engaged with the locking portion (9a) of the insertion hole (9). To meet.

When engaged, the detection lever (11) faces the cam surface (8) of the meshing mechanism and is detachably fixed to the body (2) so as to cooperate with each other.

When removing the switch (10), the claw (10c) is pinched to disengage the claw (10c) and the locking portion (9a) of the insertion hole (9) from each other. Can be easily removed from the body (2).

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

(1) is a door lock device mounted on a door of an automobile, which is pivotally attached by a shaft (3) to a box-shaped storage section (2a) of a body (2) formed of a synthetic resin material, A latch (4) having a bifurcated engagement groove (4a) that can be engaged with and disengaged from a striker (not shown) fixed to the shaft, and a first engagement of the latch (4) pivotally attached by a shaft (5). By engaging the mating portion (4b) and the second engaging portion (4c), the latch (4)
And a locking plate (6) for preventing the door from rotating in the opening direction and holding the door in the half-door state and the fully-closed state, respectively, are rotatably accommodated, and the cover (7) accommodates the accommodating portion (in the body (2) ( The opening in 2a) is closed.

On the periphery of the latch (4), there is a detector (8
A cam surface (8) having a) is formed.

Below the latch (4) of the body (2),
A storage part (2) where the cam surface (8) of the latch (4) is located, penetrating a side wall part (2b) formed on the outer periphery of the body (2).
An insertion hole (9) is formed which is connected to a) and has locking portions (9a) formed on both side edges.

(10) is a movable contact (not shown) fixed to a rotating member (12) rotatably pivotally mounted in a cylindrical case (10a), and a case (2) facing the movable contact. It is a switch that turns on and off by coming in and out of contact with a fixed contact (not shown) fixed to the bottom surface. The rotating shaft (12) has a detection part (11a) protruding outward at the peripheral edge. The detection lever (11) is fixed, and the case (2)
By inserting the case (10a) into the insertion hole (9), the cylindrical connector portion (10b) to which a harness connection connector (not shown) connected to the power supply and the driving device with the harness is connected, Engage with the locking part (9a) of (9),
An elastically deformable claw portion (10c) that is detachably attachable is integrally formed below the body (2).

 Next, the operation of the embodiment of the present invention will be described.

Storage part (2a) of the body (2) of the door lock device (1)
, A latch (4), a locking plate (6), and other meshing mechanisms are incorporated into the housing (2a), and then the switch (10) is inserted into the insertion hole (9) of the body (2) of the door lock device (1). When the case (10a) is fitted into the storage portion (2a), the claw portion (10c) elastically deforms, and then engages with the locking portion (9a) of the insertion hole (9) to detect the detection lever ( The detection part (11a) of 11) is detachably fixed to the lower part of the body (2) so as to face the cam surface (8) of the latch (4).

When the door is open, the latch (4) is in the release position as shown by the solid line in FIG. 1, the detection lever (11) of the switch (10) is in the off position, and the door is open. Is being detected.

When the door is closed and the striker engages with the engaging groove (4a) of the latch (4), the latch (4) rotates clockwise in FIG. 1 and moves to the position indicated by the chain double-dashed line. , The engaging portion (4c) engages with the locking plate (6) to hold the door in a fully closed state, and the detecting portion (8a)
Is the detection part (11a) of the detection lever (11) of the switch (10)
By contacting with, the detection lever (11) rotates counterclockwise, detects the fully latched state of the latch (4) and turns on, and the drive source of the passive seat belt can be operated.

If the insertion hole (9) is bored upward from below the body (2) and the switch (10) is inserted from below the door lock device (1), rainwater will be inserted into the insertion hole (9). It does not enter the body (2) storage part (2a) through the.

When the switch (10) fails due to some reason, the claw (10c) is pinched so that the claw (10c) and the engaging portion (9a) of the insertion hole (9) are engaged with each other. By removing the connection, the switch (10) can be easily removed from the body (2) and replaced with a new switch.

[Advantage of the Invention] As described above, in the present invention, the switch can be easily attached to and detached from the door lock by forming the insertion hole in the body of the door lock device and inserting the switch into the insertion hole. It can be attached to the and can improve assembly work and repair work.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a front view of a door lock device with a cover removed, Fig. 2 is a front view of a switch, and Fig. 3 is a front view of the door lock device. 4 and FIG. 4 are sectional views taken along the line IV-IV in FIG. (1) Door lock device, (2) Body (2a) Storage part, (4) Latch (7) Cover, (8) Cam surface (9) Insert hole, (10) Switch (10a) Case, (10b) Connector (10c) Claw, (11) Detection lever

Claims (2)

[Scope of utility model registration request] Claim: What is claimed is: 1. A door lock body has an accommodating mechanism for engaging and disengaging a striker to open and close the door. The body cooperates with a cam surface formed in the engaging mechanism to open and close the door. In a door lock device in which a switch with a detection lever for detection is arranged, an insertion hole is formed in the wall of the body that leads to the storage part and has a locking part in place, and the switch case is elastically deformed. Forming possible nails,
Position detection switch characterized in that the switch detection lever is inserted into the insertion hole and the locking portion and the claw portion are engaged with each other, so that the switch can be detachably attached to the body and detachably mounted. Door lock device equipped with. 2. A door lock device having a position detection switch according to claim 1, wherein an insertion hole is formed in a lower end portion of the body so as to face downward so that the switch can be inserted from below.