JP4451108B2 - Vehicle door lock device - Google Patents

Description

The present invention relates to a vehicle door lock device that prevents a door from being locked when a side collision occurs.

In general, an automobile may include a door lock device that prevents the door from being locked when a side collision occurs. As this type of door lock device, conventionally, a lock main body integrally formed with the lock body so as to be close to the door outer panel is formed, and the lock release arm portion is rotated in the unlock direction in the case of a side collision. Yes (see, for example, Patent Document 1). In addition, there is a protection plate that extends so as to be close to the door outer panel on the cover plate of the lock body so that an impact force at the time of a side collision does not act on the lock body (for example, Patent Document 2). reference).
JP 2001-27064 A Japanese Patent No. 25662587

However, all of the above-mentioned conventional publications employ a structure in which the lock release arm and the protective plate are extended to the lock body so as to approach the door outer panel. Therefore, the lock body is disposed at a position away from the door outer panel. There is a need to. As a result, there is a concern that the vehicle width dimension of the door body is increased and the indoor space is reduced.

In addition, each of the conventional devices has a structure in which an unlocking arm portion and a protection plate are additionally formed on the lock main body, and there is a problem that the parts are increased in size and the cost of the parts is increased.

The present invention has been made in view of the above-described conventional situation, and provides a vehicle door lock device that can prevent an increase in the vehicle width dimension of a door body and can suppress an increase in size and cost of components. The purpose is to do.

The present invention includes a tension rigid reinhose disposed inside a door outer panel that forms the vehicle exterior side of the door body, a key cylinder disposed in the door outer panel, and a door lock disposed in the door body. In the vehicle door lock device in which the mechanism is connected by a locking link extending in the vehicle vertical direction and the door lock mechanism is locked or unlocked via the locking link by key operation of the key cylinder, the tension rigid reinhose Is arranged between the door outer panel and the door sash so as to cross the locking link, and the tension rigid rein hose engages the side of the locking link facing the tension rigid rein hose when a side collision occurs. forming a bent portion for preventing movement of the locking direction of the locking link, the The upper portion than the bending portion of Tsu King links, when viewed from the side of the vehicle, is characterized in that it is arranged to overlap between the tensile rigidity reinforce member and the door sash.

According to the door lock device of the present invention, the bending portion is formed in the locking link, and the upper portion of the locking link is disposed so as to overlap between the tension rigid reinhose and the door sash, so that the tension rigidity at the side collision The rein hose engages with the bent part and the locking link is held between the rigid rein hose and the door sash, preventing the locking link from moving in the locking direction and preventing the door from being locked. The door can be made possible.

In the present invention, since the existing tension rigid rein hose is effectively engaged with the bent portion of the locking link, the lock release arm portion and the protection plate are extended to the door outer panel side in the conventional lock body. Compared to the above, the lock mechanism can be disposed closer to the door outer panel, the vehicle width dimension of the door body can be reduced accordingly, and the indoor space can be secured.

In addition, since the locking link has a structure in which only a bent portion is formed, it is possible to eliminate the need for additional parts, and increase the size and cost of the parts compared to the conventional case where additional lock release arm parts and protective plates are additionally formed. The rise can be suppressed.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 3 are views for explaining a vehicle door lock device according to an embodiment of the present invention. FIG. 1 is a side view of a front door of an automobile in which the door lock device of the present embodiment is arranged. 2 is a front view of the door lock device viewed from the front of the vehicle, and FIG. 3 is a side view of the door lock device viewed from the side of the vehicle.

In the figure, reference numeral 1 denotes a vehicle body side, which is provided with a front door 3 in a door opening 2 a formed in a side panel 2, and the front edge of the front door 3 is vertically moved by a front pillar 4. It has a schematic structure supported through a pair of door hinges 5 and 6 so that it can be opened and closed.

The front door 3 can connect a door sash 8 to a door body 7 formed by a door outer panel 7a and a door inner panel (not shown), and can move up and down a window glass 9 that opens and closes a window opening of the door sash 8. It has the structure arranged in. The lower half 8a of the door sash 8 extends into the door body 7 and is coupled to the door inner panel.

A tension rigid reinhose 10 (door constituent member) extending in the vehicle front-rear direction is disposed inside the door outer panel 7a in the door body 7. The tension rigid reinhose 10 has a rear end portion 10f spotted on the door inner panel. The remaining portion is welded to the door outer panel 7a with an adhesive or the like. The tension rigid reinhose 10 is formed by bending a lower convex portion 10d that bulges indoors following an upper convex portion 10c that bulges outward in the vehicle width direction between the upper and lower flanges 10a and 10b when viewed in a cross section. It has a formed structure. FIG. 2 shows a state in which the tension rigid reinhose 10 is cross-sectioned between the door inner panel side portion and the door outer panel side portion.

The front door 3 is provided with a door lock device 12. The door lock device 12 is a schematic structure in which a key cylinder 20 disposed on the door outer panel 7a and a lock mechanism 15 disposed below the key cylinder 20 are connected by a rod-shaped locking link 22 extending in the vehicle vertical direction. It has a structure.

When the front door 3 is closed, the lock mechanism 15 engages with a door striker 14 fixed to the center pillar 13 to hold the front door 3 in a closed position, and a door handle 18 disposed on the front door 3 is engaged. The engagement is released by an opening operation.

A locking lever 21 for switching the locking mechanism 15 to either a locked state or an unlocked state is connected to the locking mechanism 15 via a lock pin 23 so as to be swingable up and down. The lower end of the locking link 22 is connected.

Is rotated counterclockwise by inserting the key (not shown) on the key cylinder 20, the locking link 22 moves upward by rotating upward the locking lever 21 about the lock pin 23, the locking mechanism 15 Is locked. As a result, the front door 3 is locked, and the door handle 18 cannot be opened. When the key is rotated clockwise, the locking link 22 is moved downward, the locking lever 21 is rotated downward, and the lock mechanism 15 is unlocked. As a result, the front door 3 is unlocked, and the door handle 18 can be opened.

The locking link 22 is disposed between the door outer panel 7 a and the lower half 8 a of the door sash 8 so as to be substantially orthogonal to the tension rigid reinhose 10.

A bent portion 22a is formed at a portion of the locking link 22 facing the lower convex portion 10d of the tension rigid reinhose 10, and the bent portion 22a is formed to be bent in a stepped shape on the vehicle exterior side. The upper portion 22b of the locking link 22 above the bent portion 22a is disposed so as to overlap between the tension rigid reinhose 10 and the door sash 8 when viewed from the side of the vehicle.

When an impact force F is applied to the door body 7 from the side of the vehicle, the tension rigid reinhose 10 is deformed together with the door outer panel 7a and moves to the inside of the vehicle, and the lower corner portion 10d 'of the lower convex portion 10d of the tension rigid reinhose 10 is locked. The upper portion 22b of the locking link 22 is sandwiched between the tension rigid reinhose 10 and the lower half portion 8a of the door sash 8 while riding on and engaging the bent portion 22a of the link 22. This prevents the locking link 22 from moving in the locking direction (upward).

According to the door lock device 12 of the present embodiment, since the bent portion 22a is formed in the portion of the locking link 22 facing the lower protruding portion 10d of the tension rigid reinhose 10, the tension rigid reinhose 10 bends the locking link 22 at the time of a side collision. Since the locking link 22 is prevented from moving in the locking direction by engaging with the portion 22a, the front door 3 can be prevented from being locked, and the door can be opened during a side collision.

In the present embodiment, since the existing tension rigid reinhose 10 disposed inside the door outer panel 7a is effectively engaged with the bent portion 22a of the locking link 22, the conventional lock body is unlocked. The lock mechanism 15 can be arranged closer to the door outer panel 7a as compared with the case where the arm portion and the protection plate are extended to the door outer panel side, so that the vehicle width dimension of the door body 7 can be reduced and the indoor space can be secured. it can.

Further, since the bending link 22a is simply formed on the locking link 22, the addition of parts can be made unnecessary, and the parts can be made larger and the parts can be made larger than in the case where the conventional unlocking arm part and protection plate are additionally formed. Increase in cost can be suppressed.

Further, since the upper portion 22b of the locking link 22 is arranged so as to overlap between the tension rigid reinhose 10 and the door sash 8, the locking link 22 is sandwiched between the tension rigid reinhose 10 and the door sash 8 at the time of a side collision. Accordingly, the movement of the locking link 22 in the locking direction can be more reliably prevented.

1 is a side view of a front door of an automobile provided with a door lock device according to an embodiment of the present invention. It is a front view of the door lock device seen from the vehicle front. It is a side view of the door lock device seen from the vehicle side.

Explanation of symbols

7 Door body 7a Door outer panel 10 Tensioned rigid reinhose (door component)
12 Door lock device 15 Lock mechanism 20 Key cylinder 22 Locking link 22a Bent part

Claims (1)

A rigid rigid hose is arranged inside a door outer panel that forms the vehicle outer side of the door main body. A key cylinder arranged in the door outer panel and a door lock mechanism arranged in the door main body are arranged in the vehicle. In a vehicle door lock device which is connected by a locking link extending in the vertical direction and the door lock mechanism is locked or unlocked via the locking link by key operation of the key cylinder, the tension rigid rein hose is connected to the door outer panel. lock and between the door sash and arranged so as to intersect with the locking link, in the region facing the tension rigidity reinforce member of the locking link engages the tensile rigidity reinforce member during a side collision of the rocking link forming a bent portion for preventing movement in a direction, the locking The upper portion than the bending portion of the link, when viewed from the side of the vehicle, the vehicle door lock apparatus characterized by being arranged to overlap between the tensile rigidity reinforce member and the door sash.

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