JP2002295097A - Automotive door lock mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with door harness for an automobile having no electric equipment, other than electric locks, attached to its doors. SOLUTION: An approximately U-shaped lock member is provided to protrude from the opening/closing side end face of an automobile door and a striker to be locked and unlocked by the lock member is attached to the side of the automobile body which abuts against the opening/closing side end face when the door is closed. A power source comprising a motor or a solenoid for electrically controlling the striker is mounted in the automobile body. A means for operating the power source is provided in the automobile body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock mechanism for an automobile, and does not require an electric power source for the door lock mechanism on the door side, thereby eliminating the need for a door harness.

[0002]

2. Description of the Related Art Conventionally, a door lock mechanism of an automobile is shown in FIG.
As shown in FIG. 1, a striker 2 is attached to the front end face of the door 1 on the opening / closing side, and a substantially U-shaped lock member 4 which is locked or unlocked with the striker 2 is fixed to the vehicle body side 3. The striker 2 on the door 1 side is controlled to be rotatable or non-rotatable by a door lock motor 5 or a solenoid disposed inside the door 1, and when the knob 6 of the door 1 is pulled at the time of unlocking to be rotatable, the striker 2 is pulled. 2 rotates to disengage the lock member 1 and open the door 1, while the locker 2
Cannot be rotated, so that even if the knob 6 is pulled, the door 1 cannot be opened.

As shown in FIG. 5, a door lock motor 5 disposed inside the door 1 is connected to a wire harness 7 arranged on a vehicle body 3 and a door harness 9 connected via a connector 8 to the door 1. The door harness 9 is branched and connected to the door lock motor 5.

[0004]

Some vehicles do not have a power window (electrically driven window raising / lowering mechanism) or an electric remote control / door mirror on the door. However, even in such a model, the electric striker 2 is provided on the door 1 side, and the door harness 9 is indispensable in order to lock or unlock the striker 2 by the door lock motor 5 installed inside the door 1. Has become.

[0005] The door harness 9 is routed inside the door, pulled out from the door frame to the vehicle body side, and connected to the wire harness 7 on the vehicle body via the connector 8, but through a through hole provided in the door frame. It is difficult work to draw out the door harness 9 and to arrange the door harness 9 in a narrow space inside the door.
Further, a grommet is attached to the door harness, and the grommet is attached to the through hole to ensure waterproofness. However, the grommet causes a gap between the weather strip and the door frame, causing a problem in waterproofness. There is also a problem.

As described above, there is a problem that the wiring work of the door harness is difficult, the productivity is reduced, and the cost of providing the door harness itself is significantly increased.

[0007] The present invention has been made in view of the above-mentioned problems, and does not require a power window, an electric remote controller for a door mirror, and the like, and requires a door harness only for electrically driving a door lock striker. At
It is an object to provide an electric door lock mechanism without using a door harness.

[0008]

SUMMARY OF THE INVENTION To solve the above-mentioned problems, the present invention provides a door member of an automobile having a substantially U-shaped locking member protruding from the opening / closing side end surface thereof, and the opening / closing side end surface when the door is closed. The lock member and the striker to be locked and unlocked are attached to the vehicle body side in contact with the vehicle, and an electric power source including a motor or a solenoid for electric control of the striker is mounted on the vehicle body side. It provides a door lock mechanism.

As described above, the arrangement of the lock member and the striker is reversed from that of the related art, the substantially U-shaped lock member is fixed to the door side, and the electric source of the striker is arranged on the vehicle body side. When the electric device is not arranged on the door side, the door harness is unnecessary.

When the door harness is not required, the cost can be greatly reduced, and the work of arranging the door harness can be omitted, and the productivity can be improved.

In order to arrange the striker on the vehicle body side,
A means for operating the electric power source to move the striker to the unlock position is provided.For example, if a key hole is provided on the vehicle body side and a key is inserted into the key hole and unlocked, the electric source is turned on in conjunction with the key hole. I have to.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a substantially U-shaped lock member 10 protrudes from the front end face of the door 1 on the opening and closing side, and the lock member 10 and the lock member 10 are locked on the vehicle body side 3 which comes into contact with the front end face on the opening and closing side when the door is closed. And a striker 11 to be unlocked.

The vehicle body 3 near the striker 11 is provided with a locking piece 14 for engaging and disengaging a part of the striker 11, and a door lock motor 15 for operating the locking piece 14 is disposed on the vehicle body 3 side. . The door lock motor 15 is a striker 11
Is connected to a lock release switch 16 disposed on the end surface of the vehicle body near the vehicle.

A key hole 17 is provided on the outer surface of the vehicle body 3 in the vicinity of the lock release switch 16, and when the key is inserted into the key hole 17 and unlocked, the lock release switch 16 is opened.
Is turned on, the door lock motor 15 is operated, and the locking piece is operated to release the locking with the striker 11.

In the door lock mechanism having the above structure, when the key 9 is inserted into the key hole 17 and unlocked, the striker 11 becomes rotatable, and when the door 1 is opened by grasping the knob 18 provided on the door 1, The lock member 10 on the door 1 side rotates the striker 11 to release the fitting, and the door 1 can be opened.

As described above, since the door lock motor 15 is disposed on the vehicle body 3 side, as shown in FIG. 2, in an automobile having no electric components attached to the door 1 side, as shown in FIG.
No wire harness W / H is routed.

As described above, when the wiring of the wire harness to the door side becomes unnecessary, the door harness can be made unnecessary, and a complicated structure including a grommet for connecting the wire harness between the vehicle body and the door can be obtained. It is not necessary to provide a simple mechanism, and the number of parts can be greatly reduced, and the number of labors can be significantly reduced.

A key for operating the door lock motor is provided on the door side in the same manner as in the prior art, and an operating rod projecting toward the vehicle body in conjunction with the unlocking operation by the key is provided, and the door lock motor is operated by the operating rod. It may be a mechanism that is turned on.
The operating rod may be configured to be retracted toward the door by a spring or the like when the key is removed.

Further, the door lock mechanism is not limited to the left and right doors, but may be employed in the door lock mechanism of the back door shown in FIG. In this case, the back door 2
No door lock motor is provided on the 0 side, and a striker and a door lock motor 21 for operating the striker are provided on the vehicle body side.
On the other hand, a lock member is provided on the back door side. When the striker is moved to the unlock position by inserting a key into the key hole 22 provided on the vehicle body side, the opening member of the back door rotates the striker by the opening operation of the back door, and the back door is rotated. Can be opened.

Therefore, it is not necessary to route the wire harness to the back door, and components such as grommets required for routing from the vehicle body to the back door can be eliminated.

[0021]

As is apparent from the above description, according to the present invention, in the door lock mechanism, the arrangement of the striker and the lock member is reversed, and the striker which needs to be electrically operated is arranged on the vehicle body side. Therefore, there is no need to dispose a door lock motor or solenoid on the door side. Therefore, in an automobile in which electric components other than the electric lock are not attached to the door, the door harness can be dispensed with. As a result, the number of wire harnesses can be reduced, and the cost can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of an embodiment of the present invention.

FIG. 2 is a wiring harness wiring diagram in an automobile including the door lock mechanism of the embodiment.

FIG. 3 is a drawing showing an example of application to a back door.

FIG. 4 is a perspective view of a door lock mechanism showing a conventional example.

FIG. 5 is a wiring diagram of a conventional wire harness.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 3 Body 10 Lock member 11 Striker 15 Door lock motor

Claims (2)

[Claims] 1. A substantially U-shaped lock member protrudes from an open / close end surface of an automobile door, and the lock member and the lock member are locked and unlocked by a vehicle body that comes into contact with the open / close end surface when the door is closed. A door lock mechanism for an automobile, further comprising a striker attached thereto, and a motor for electrically controlling the striker or an electric source comprising a solenoid mounted on the vehicle body. 2. The vehicle door lock mechanism according to claim 1, further comprising means for operating an electric source on the vehicle body side to operate the striker to an unlocked position.