JP2865531B2 - Vehicle 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 vehicle door lock device used for a cabin door of a vehicle such as a tractor.

[0002]

2. Description of the Related Art In a door of a tractor cabin, a plate member is provided at an intermediate portion in the vertical direction of the door, and a door lock device is attached thereto. The door lock device has the same structure as that of a passenger car. An outer handle main body provided on the door, a cylinder lock provided on the outer handle main body, penetrating the door, an engaging body engaging with the engaged portion on the vehicle body side, and pivotally supported by the outer handle main body. An outer lever for releasing the engagement member from the engaged portion via the engagement releasing means, and a lock connected to the cylinder lock for disengaging the engagement member from the engaged portion by the locking operation thereof Locking means.

In the prior art, the outer handle body is attached to a metal plate fixed to the door, is disposed so as to penetrate a large hole of the door and protrude outward from the inside thereof, and is disengaged from the outer lever. Coordination with the means is also made through this large hole.

[0004]

By the way, in recent years, in tractors, it has been considered to form the entire cabin door with glass in order to improve the side view. In that case, a metal plate to which the outer handle body is attached is considered. Needs to be removed because it interferes with visibility. However, forming a large hole in the glass into which the outer handle main body can be inserted causes a decrease in the strength of the door, which tends to cause breakage. Therefore, it is difficult to divert the conventional door lock device as it is.

According to the present invention, the outer handle body is fixed to the outer surface of the door, the cylinder lock is slidably supported in the door handle relative to the outer handle body, and the outer lever is used to slide the cylinder lock into the door. By configuring the cylinder lock so that the disengaging means can also be operated, the vehicle can be mounted simply by forming a cylinder lock disposing hole and a fastener hole for attaching the outer handle body to the door. It is an object to provide a door lock device.

[0006]

A specific means for solving the problems in the present invention is an outer handle body 3 provided on the door 2 and a cylinder lock 4 provided on the outer handle body 3 and penetrating through the door 2. And an engaging body 6 that engages with the engaged portion 5 on the vehicle body side, and disengages the engaging body 6 from the engaged portion 5 via the disengaging means 7 that is pivotally supported by the outer handle body 3. A door lock device for a vehicle, comprising: an outer lever 8 that enables the lock; and a lock lock unit 9 that is connected to the cylinder lock 4 and disables the engagement member 6 from being disengaged from the engaged portion 5 by the locking operation. The cylinder lock 4 is supported slidably inward and outward of the door with respect to the outer handle body 3 fixed to the outer surface of the door, and the end of the outer lever 8 is rotated outward to move the cylinder lock 4 inward of the door. Outside the door of cylinder lock 4 to slide Interlocking means 10 that engages with the side of the cylinder lock 4 and operates the disengagement means 7 by sliding the cylinder lock 4 inward of the door between the door inner end side and the disengagement means 7. It is.

[0007]

When one end of the outer lever 8 is rotated outward of the door while gripping the outer handle body 3 provided on the door 2, the other end is rotated inward of the door, and the cylinder lock 4 is moved to the door. Sliding inward. When the cylinder lock 4 slides in the door, the engagement releasing means 7 is operated via the interlocking means 10,
The engaging body 6 can be released from the engaged portion 5. Thus, the door 2 can be opened by pulling the door 2 through the outer handle body 3.

When the cylinder lock 4 is rotated by a key, the lock lock means 9 is operated, and the locking operation disables the engagement member 6 from being disengaged from the engaged portion 5. The outer handle main body 3 is fixed to the outer surface of the door 2, the outer lever 8 is supported by the outer handle main body 3, and the lock locking means 9 and the interlocking means 10 are both provided on the inner side of the door of the cylinder lock 4. 2, the door lock device 1 is mounted simply by forming a hole for disposing the cylinder lock 4 and a hole for a fastener for attaching the outer handle body 3.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3, reference numeral 1 denotes a door lock device provided on a glass door 2 of a tractor cabin. The door lock device 1 is roughly divided into an outer handle main body 3 provided on the door 2, a cylinder lock 4 provided on the outer handle main body 3, and an engaging body 6 engaged with the engaged portion 5 on the vehicle body side. An outer lever 8 pivotally supported by the outer handle main body 3, an engagement release means 7 for enabling the engagement body 6 to be released from the engaged portion 5, and an engagement release of the engagement body 6 from the engaged portion 5. The lock 2 has lock lock means 9 for disabling, and an inner handle 11 and an inner lock member 12 are arranged inside the door 2.

The outer handle main body 3 is formed to be elongated from plastic or light metal, has a grip portion 3A at an intermediate portion, and both ends thereof are brought into contact with the outer surface of the door 2 to pass through the fastener holes 14 of the door 2. It is secured by a plurality of (for example, three) fasteners 15 such as bolts. On one end side of the outer handle body 3, a cylinder lock 4 is slidably inserted in and out of the door 2. The side wall portion where the cylinder lock 4 faces in the axial direction is a circular convex wall 3B protruding inward of the door, and is fitted into a cylinder lock hole 18 formed in the door 2.

The cylinder lock 4 is fitted with a holder 17 having a flange 16 on the outer end side of the door 2, and the inner end side of the door 2 penetrates through the circular convex wall 3 B of the outer handle body 3. It penetrates into the door 2 through the hole 18. The cylinder lock 4 is elastically pressed to the outside of the door 2 by a return spring 21 provided between the cylinder lock 4 and the circular convex wall 3B.

The cylinder lock 4 is rotatable by inserting a key.
When the letter-shaped operating piece 22 is fixed and slides on the cylinder lock 4, the operating piece 22 moves in the axial direction together with the cylinder lock 4, and turns integrally when the cylinder lock 4 is turned.
The diameter of the cylinder lock hole 18 can be made as small as possible by reducing the outer diameter of the circular convex wall 3B.

Reference numeral 8 denotes an outer lever pivotally supported on the other end of the outer handle main body 3 via a support shaft 24. An engaging portion 25 is formed at one end of the outer lever and a flange 1 of the holder 17 is provided.
6 can be engaged. The engagement portion 25 can prevent the cylinder lock 4 from coming off by contacting the outer handle main body 3. When the outer lever 8 is turned by putting a finger on the other end and pulling it outward from the door, the engaging portion 25 slides the cylinder lock 4 together with the holder 17 outward from the door against the return spring 21. Then, the operation piece 22 can be moved inward of the door.

A support frame 28 is fixed to the inner surface of the door 2 via the fastener 15. While the shafts 29, 30, and 31 are supported by the support frame 28,
A guide groove 32 into which the engaged portion 5 can be introduced is formed.
The engaging member 6 is rotatably supported by the shaft 29 and can be engaged with the engaged portion 5 fixed to the vehicle body introduced into the guide groove 32, and a lock supported by the shaft 30 on the engaging member 6. The piece 33 is engageable, and the return rotation of the engagement body 6 is prevented by engaging in the state of FIG.

An operating body 35 and a release body 36 are supported on the shaft 30, and a connecting pin 37 provided on the operating body 35 passes through an arc-shaped long hole 38 of the support frame 28 and a lock piece 33.
The lock piece 33 is integrally rotated by the rotation of the operating body 35. The operating body 35 is further formed with a concave portion 39 and a contact portion 40. The release body 36 has a three-pronged shape, and has a first leg portion formed with a long hole 42 extending radially outward from the shaft 30 side.
3, the pin 43 and the inner lock member 12 are connected by a link 44. By moving the pin 43 in the elongated hole 42, the state is changed to a state in which the pin 43 faces the recess 39 and a state in which the pin 43 contacts the contact part 40.

A release spring 36 is connected to the second leg of the release body 36 and urges in the counterclockwise direction in FIG. 1, and a pushing portion 48 is formed at the distal end thereof. The supported inner handle 11 is in contact with the pushing portion 48, and by rotating the inner handle 11, the release body 36 can be rotated clockwise in FIG. 1 via the pushing portion 48. ing.

The distal end of the third leg of the release body 36 is
6, which is in contact with one end of the intermediate lever 47,
The other end of the intermediate lever 47 is engaged with the tip of the operation piece 22, and when the operation piece 22 moves inward of the door 2, the release member 36 is pulled through the intermediate lever 47 to extend the tension spring 4.
5 in a clockwise direction in FIG.

When the tip of the operating piece 22 is rotated in the locking direction of the cylinder lock 4, the engagement with the intermediate lever 47 is released, so that the releasing body 36 does not rotate even if the operating piece 22 moves. ing. Incidentally, the intermediate lever 47 is supported by the support frame 2.
8 is pivoted. The clockwise rotation of the release body 36 in FIG. 1 accompanies the pin 43 in the elongated hole 42,
The actuating body 35 is contacted via the contact portion 40 contacting the pin 43.
Is rotated.

When the pin 43 faces the concave portion 39, the rotation of the release member 36 is not transmitted to the operating member 35. The inner lock member 12 causes the pin 43 to face the recess 39. The inner lock member 12 is pivotally supported by a shaft 31, the link 44 is connected to an end of the inner lock member 12, and an arc-shaped long hole 51 centering on the shaft 31 is formed. One end is connected. The other end of the interlocking rod 52 has a cylinder lock 4
It is hung so as to be relatively movable in a long hole 53 formed parallel to the axial direction.

Therefore, when the inner lock member 12 is artificially swung counterclockwise in FIG. 1 or the operating piece 22 is rotated via the cylinder lock 4, the link 44 is pushed up, and the pin 43 is brought into contact. The concave portion 39 from the position facing the portion 40
And the rotation of the release body 36 is not transmitted to the operating body 35. Note that the inner lock member 12 can be held at the rotation position.

The release member 36, the operating member 35, the pin 43,
By the contact part 40, the connecting pin 37, the lock piece 33, etc.
An engagement releasing means 7 for releasing the engaging body 6 from the engaged portion 5 is constituted, and the outer lever 8 is formed by the engagement of the operating piece 22, the intermediate lever 47 and the interlocked portion 46 of the releasing body 36. The interlocking means 10 operates the disengagement means 7 by sliding the cylinder lock 4 inward of the door. The inner handle 11 is linked to the engagement releasing means 7.

The operation piece 22 has a long hole 53, an interlocking rod 52, an inner lock member 12, a link 44, and a pin 4.
3, the recess 39, the lock piece 33, and the like constitute a lock locking means 9 for disengaging the engaging body 6 from the engaged portion 5 even when the outer lever 8 is rotated.

[0023]

According to the present invention described in detail above, the cylinder lock 4 is slidably supported in the door inward and outward directions with respect to the outer handle body 3 fixed to the outer surface of the door, and the end of the outer lever 8 is provided outside the door. The cylinder lock 4 is engaged with the door outer end side of the cylinder lock 4 so as to slide the cylinder lock 4 inward by the pivoting operation toward the door. Since the interlocking means 10 for operating the disengagement means 7 by sliding the cylinder lock 4 inward of the door is provided, the door 2 can be opened by sliding the cylinder lock 4 inward through the outer lever 8. The door lock device 1 can be mounted on the door 2 only by forming a hole for disposing the cylinder lock 4 and the hole for the fastener 15 by attaching the outer handle body 3 to the door 2, and the door 2 is made of glass. Even so, the required strength can be secured.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of an engagement body and its vicinity.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door lock device 2 Door 3 Outer handle main body 4 Cylinder lock 5 Engaged part 6 Engagement body 7 Engagement releasing means 8 Outer lever 9 Lock locking means 10 Interlocking means 11 Inner handle 12 Inner lock member 14 Fastener hole 15 Fastener 18 Cylinder lock hole 22 Working piece

Claims (1)

(57) [Claims] 1. An outer handle body (3) provided on a door (2), a cylinder lock (4) provided on the outer handle body (3) and penetrating through the door (2), An engaging body (6) that engages with the joint (5) and an engaging body (6) that is pivotally supported by the outer handle body (3) and is disengaged via the engagement releasing means (7). )), And an outer lever (8) that can be disengaged from the cylinder lock (4), and the engaging body (6) is engaged with the engaged portion (5) by its locking operation.
And a lock means (9) for disengaging the lock from the vehicle, wherein the cylinder lock (4) slides in and out of the door with respect to the outer handle body (3) fixed to the outer surface of the door. And the end of the outer lever (8) engages with the outer end of the door of the cylinder lock (4) so that the cylinder lock (4) is slid inward by turning the door outward. , The cylinder lock (4) between the door inner end side of the cylinder lock (4) and the engagement releasing means (7).
A door lock device for a vehicle, comprising an interlocking means (10) for operating the engagement releasing means (7) by sliding the door inward.