JP2001349118A - Door lock device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door lock device for a vehicle in which durability is improved, the impact of pinching is relaxed even when a hand or a finger is pinched by mistake and assembly is facilitated. SOLUTION: In the door lock device for the vehicle having constitution, in which a fence block 12, in which a fork retaining and holding a striker and a claw lever are installed, is finished interiorly into an internal space formed of a base plate 11 and a cover plate 13 and both end sections of a fork shaft and a claw lever shaft are caulked to these plates 11 and 13, connecting piece sections 11d and 11e formed to the base plate 11 are inserted into through-holes 12d and 12e formed to the fence block 12, and tongue piece sections 13d and 13e formed to the cover plate 13 are fitted into connecting holes 27 and 28 formed at the front end section of the connecting piece sections 11d and 11e.

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, for example, a door lock device mounted on a back door of an automobile.

[0002]

2. Description of the Related Art In a door lock device provided in a back door of an automobile, when a door is closed, a striker on a vehicle body side strikes a fork and the fork rotates.
Further, since the fork is prevented from reversing by the crow lever, the striker is locked and held by the fork, and the door is locked in the closed state.

In such a door lock device, a fence block provided with a fork and a craw lever is provided inside a box-shaped base plate, and a cover plate covers the fence block. Thus, it is provided on the opening side of the base plate.

Incidentally, both ends of the support shaft of the fork and the crawler are fixed to the base plate and the cover plate by crimping, and each plate and the fence block are integrally fixed. The door lock device is provided with a mounting hole communicating with the base plate and the cover plate, and is mounted on the door by a bolt or the like passing through the mounting hole.

[0005]

The above-described door lock device receives a considerably strong impact force when the door is closed, so that the base plate may be deformed while being used for many years. The fence block may be displaced.

If the base plate is deformed and the fence block is displaced, the fork and the craw lever are disengaged from each other, so that the locking operation becomes unstable and the door is securely locked. May not be done.

In order to solve this problem, a locking portion having an L-shaped cross section formed widely on the base plate is fitted into an elongated hole of the cover plate, and the base plate and the cover are formed.
A door lock device having a configuration in which a plate and a plate are reinforced has been proposed.

[0008] However, with such a configuration, the structure of the engaging portion between the base plate and the cover plate is complicated, and the manufacturing die is also complicated.

Further, in the door lock device thus configured, since a portion exposed from the door is a metal portion, if a finger or the like is mistakenly pinched when the door is closed, serious injury is caused. There is fear.

In view of the above situation, the present invention prevents deformation of the base plate and displacement of the fence block.
It is another object of the present invention to provide a vehicle door lock device in which a portion exposed from a door is covered with a fence block portion made of a synthetic resin material so that an impact on a human body is reduced.

[0011]

In order to achieve the above object, the present invention provides a synthetic resin having a fork for locking and holding a striker on a vehicle body by closing a door and a crowbar. A fence block made of a material, a base plate made of a metal material provided with the fence block provided with an entrance groove for the striker, and an opening side of the base plate so as to cover the fence block. A door lock for a vehicle, comprising a cover plate made of a metal material provided, wherein the support shaft of the fork and the crawler is supported by the base plate and the cover plate. In the device,
A through-hole is provided in the fence block portion on the side of the striker entrance groove, and a connecting piece is inserted into one of the base plate and the cover plate into the above-mentioned through-hole, and the tip side protrudes from the through-hole. A connecting hole is formed at the distal end of the connecting piece, and a tongue piece is provided on the other of the base plate and the cover plate to fit into the connecting hole of the connecting piece. The present invention proposes a vehicle door lock device characterized by having the above configuration.

[0012]

According to the door lock device of the present invention, the connecting piece provided on one of the base plate and the cover plate is inserted into the through hole of the fence block, and the tongue provided on the other of the two. The base plate and the cover plate are connected by fitting into the connection holes of the connection piece.

As a result, the base plate and the cover plate
The base plate and the cover plate are connected to each other by the connecting piece and the tongue piece, in addition to the connecting of the fork and the craw lever by the support shaft of the fork. The door lock device has a strong structure and does not cause deformation of the base plate or displacement of the fence block.

Further, since the connecting piece is inserted into the through hole of the synthetic resin fence block, the portion exposed from the door becomes the fence block, and the impact when hitting the human body is affected by the elasticity of the synthetic resin material. Be relaxed.

Further, the base plate and the cover plate are positioned relative to each other by a connecting piece and a tongue in addition to the support shaft of the fork and the crawler. The door lock device can be easily assembled.

[0016]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a door lock device provided in a back door of an automobile, FIG. 2 is a bottom view of the door lock device, and FIG. 3 is an enlarged sectional view taken along line AA in FIG.

In these drawings, reference numeral 10 denotes a latch mechanism, which includes a base plate 11 and a fence block 12.
And a cover plate 13. As shown in FIG. 4, the fence block 12 has a fork 15 for locking the striker 14 on the vehicle body side, and a fork 15.
And a claw lever 16 for stopping reverse rotation of the lock 15.

The fence block 12 is housed in a base plate 11 formed in a substantially box shape, and the fence block 12 is covered by a cover plate 13 provided on the opening side of the base plate 11. It is like that.

Base plate 11 and cover plate 13
Are integrally connected to each other by caulking both ends of a fork shaft 17 and a crawler shaft 18 having the fence block 12 penetrated through these plates.

Further, the base plate 11 and the cover plate
The mounting plate 11 is provided with mounting plates 11a, 13a projecting to the left and right, and mounting holes 11 formed in these mounting plates 11a, 13a.
Bolts are inserted from b and 13b and attached to the door.

The base plate 11 and the fence block 12 are formed with an entry groove 19 for allowing the striker 14 to enter therethrough.
Has a clockwise (FIG. 4) spring force.
Are provided with a counterclockwise (FIG. 4) spring force.

On the other hand, the cover plate 13 has a bent surface portion on the front end side formed as a cover of the latch mechanism portion 10 and the other portion formed as a plate portion 13c projecting rearward of the latch mechanism portion 10. .

As shown in FIG. 1, an open lever 20 and a bell crank lever 21 are rotatably supported on the plate portion 13c. The open lever 20 is coaxial with the turning lever 23 to which the outer handle rod 22 is connected, and operates according to the operation of the outer handle.

An elongated hole is formed in the open lever 20, and an interlocking pin provided at the tip end of the link lever 24 is inserted into the elongated hole. That is, open lever-2
When 0 is turned, the leading end of the link lever 24 is interlocked via the interlocking pin and moves laterally (in FIG. 1, at right angles to the plane of the drawing).

The link lever 24 has its base pivotally attached to the first arm of the bell crank lever 21 described above, and moves upward (FIG. 1) as the bell crank lever 21 rotates. . That is, the link lever 24 is
With the rotation of the bell crank lever -21, the tip thereof moves forward and backward (up and down in FIG. 1) with respect to the pushing region of the crow lever 16, and locks and unlocks the door. Is.

In the bell crank lever 21, a key cylinder rod 25 is connected to the second arm, and the link lever 24 is retracted by locking the key cylinder (see FIG. 2).
(1) (upward movement), and the link lever 24 is rotated to advance (downward movement in FIG. 1) by unlocking.

The bell crank lever 21 is linked to the electric actuator 26, and the electric power is supplied to the electric actuator 26.
When the lock lever 6 is operated, the link lever 24 is retracted, and when the lock lever 6 is unlocked, the link lever 24 is rotated so as to advance.

More specifically, when the key cylinder is unlocked or the electric actuator 26 is unlocked and the link lever 24 is moved forward, the link lever 24 is moved forward by the tip of the link lever 24. -16 can be pushed.

In other words, when the outer handle is operated in this state, the link lever 24 is moved sideways in conjunction with the open lever 20 so as to push the pushing portion 16a of the craw lever 16, so that the craw lever is moved. Release the lock of -16. Therefore, by operating the outer handle,
The door 16 can be freely opened and closed because the fork 16 releases the engagement of the fork 15.

Further, the key lever is locked, or the electric actuator 26 is operated to lock the link lever.
When the lever 24 is retracted, the distal end of the link lever 24 retreats from the pushing area of the craw lever 16.

Therefore, when the outer handle is operated, the link lever 24 interlocking with the open lever 20 does not interlock with the craw lever 16 and performs an idle swing operation. As a result, if the door is closed and the striker 14 is locked by the fork 15, the lock lever 16 continues to lock the fork 15, so that the door is locked.

On the other hand, the door lock device of the present embodiment is provided with a connection mechanism for strengthening the connection between the base plate 11 and the cover plate 13. This coupling mechanism
As shown in detail in FIG. 5, the connecting pieces 11d and 11e integrally formed on the base plate 11 and the fence block 1
2 and the through-holes 12d and 12e provided on the cover plate 1
3 tongue pieces 13d and 13e.

As can be seen from FIG. 5, the base plate 11 has left and right walls 11f and 11g and a rear wall 11h.
And two connecting pieces 11d and 11e provided on the front side thereof are formed in a substantially box shape.

The connecting piece portions 11d and 11e are elongated small plate portions which are erected on both sides of the striker entrance groove 19 and have slit-like connecting holes 27 and 28 at their tips.
Is formed.

The through-holes 12d and 1d of the fence block 12
2e is a small width 2 at both sides of the striker entrance groove 19.
Connection holes 11d, 11
e can be inserted. In addition, this through hole 12
When the connecting piece portions 11d and 11e are inserted into the d and 12e, the connecting holes 27 and 28 protrude from the through holes 12d and 12e.

The tongue pieces 13d, 13 of the cover plate 13
"e" is formed so as to protrude from the tip of the plate in accordance with the distance between the connecting pieces 11d and 11e. These two tongue pieces 1
3d and 13e are inserted into the through holes 12d and 12e after the connection pieces 11d and 11e are inserted into the through holes 12d and 12e.
The protruding connection holes 27 and 28 are fitted.

In addition, the base plate 11 shown in FIG.
Small holes 29, 30 of the cover plate 13 and small holes 3 of the cover plate 13.
Reference numerals 1 and 32 denote shaft holes for the fork shaft 17 and the craw lever shaft 18, respectively, and small circular holes 33 and 34 in the fence block 12.
Are shaft insertion holes for the shafts 17 and 18.

A switch 36 is incorporated in the square hole 35 provided in the fence block 12.
Further, the support piece 13f provided on the cover plate 13 is pressed against the switch 36 incorporated in this way to prevent the switch 36 from falling off.

The switch 36 is, as shown in FIG.
This switch 36 is turned on and off in conjunction with the rotation of the fork 15 by protruding the operator 36a into the rotation area of the fork 15.

That is, when the door is closed and the fork 15 is rotated to lock the striker 14 as shown in FIG. 4, the operator 36a is pushed by the fork 15 to perform a switch operation. , The switch 36 outputs a door closing signal.

Conversely, when the door is opened, the fork 15 returns and rotates with a spring force so as to release the engagement of the striker 14, so that the operator 36a is returned and the switch 36 is turned on. Outputs open signal.

The door lock device configured as described above is
A fence block 12 equipped with a fork 15, a craw lever 16, a switch 36, etc.
When the interior is mounted on the inside, the connecting pieces 11d and 11e are inserted into the through holes 12d and 12e.

After that, the cover plate 13 is put on.
In this case, the tongue pieces 13d, 1d are connected to the connection holes 27, 28 of the connection pieces 11d, 11e protruding from the through holes 12d, 12e.
Insert 3e.

Subsequently, both ends of each of the fork shaft 17 and the crawler shaft 18 are caulked to the base plate 11 and the cover plate 13, and these two plates are formed. To 1
1 and 13 are integrally fixed.

The base plate 11 and the cover plate 13 thus fixed are connected to the fork shaft 17 and the crow lever.
In addition to the crimping of the shaft 18, the connecting pieces 11d, 11e,
Since the connection mechanism constituted by the through holes 12d and 12e and the tongue pieces 13d and 13e is reinforced, the mutual connection between the base plate 11 and the cover plate 13 is extremely strong.

As a result, the door lock device can be used for many years. Further, this door lock device is provided with a base plate.
The connecting pieces 11d and 11e of the gate 11 are the fence blocks 1.
The metal base plate 11 is not exposed from the door, and the front portions 12a and 12b of the fence block 12 are exposed because the base plate 11 is inserted into the through holes 12d and 12e.

Therefore, if a finger or the like is erroneously pinched between the door portion where the door lock device is located and the vehicle body when closing the door, the front portions 12a and 12b of the fence block 12 made of a synthetic resin material. The impact force is reduced by the elasticity of the tire.

In the door lock device, when assembling the base plate 11 and the cover plate 13, in addition to the alignment by the fork shaft 17 and the crawler shaft 18, Since the tongue pieces 13d, 13e can be aligned by fitting the tongue pieces 13d, 13e into the connection holes 27, 28 of the connection pieces 11d, 11e, the work of assembling the latch mechanism 10 becomes easy.

Although the embodiment has been described above, the base plate 11 may be provided with the tongue pieces 13d and 13e, and the cover plate 13 may be provided with the connection pieces 11d and 11e. The present invention is not limited to a door lock device provided in a back door of an automobile, and can be implemented as a door lock device provided in each door of a vehicle.

[0050]

As described above, according to the present invention, a door lock device excellent in durability and convenient for assembly can be obtained.

Further, since the metal portion such as the base plate is covered by the front portion of the fence block made of the synthetic resin material, even if a finger or the like is erroneously pinched, the impact force is reduced. Therefore, the door lock device can prevent the situation from becoming important even in such a case.

[Brief description of the drawings]

FIG. 1 is a side view of a door lock device provided in a back door of an automobile shown as one embodiment of the present invention.

FIG. 2 is a bottom view of the door lock device.

FIG. 3 is an enlarged sectional view taken along line AA in FIG. 1;

FIG. 4 is a front view of a fence block provided in the door lock device.

FIG. 5 is an exploded perspective view of a latch mechanism provided in the door lock device.

DESCRIPTION OF SYMBOLS 10 Latch mechanism 11 Base plate 11d, 11e Connecting piece 12 Fence block 12d, 12e Through hole 13 Cover plate 13d, 13e Tongue piece 14 Striker 15 Fork 16 Cloth Lever 17 Fork shaft 18 Crawl lever shaft 19 Strike entrance groove 27, 28 Connection hole

Claims (1)

[Claims] 1. A fence block made of a synthetic resin material equipped with a fork and a claw lever for locking and holding a striker on the vehicle body side by closing a door, and an entrance groove for the striker is provided. A base plate made of a metal material having a fence block inside; and a cover plate made of a metal material provided on an opening side of the base plate so as to cover the fence block. In a vehicle door lock device having a structure in which a support shaft of a brake and a lever is supported by a base plate and a cover plate, a through-hole is formed in a fence block portion on a groove side of a striker. One of the base plate and the cover plate is provided with a connecting piece that is inserted into the above-mentioned through-hole and the leading end thereof protrudes from the through-hole. Forming a connection hole Base - spray - DOO and cover - pre - bets on the other, the vehicle door lock device, characterized in that which is configured by providing a tongue portion that fits into the connecting hole of the connecting piece.