JPH063120Y2 - Vehicle door lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a vehicle door lock device.

(Prior Art) A door lock device for a normal vehicle is, for example, an actual open door 62-
As disclosed in Japanese Patent No. 79066, even when an outer handle and an inner handle rotatably supported on a door are operated, the door is locked so as not to open, and the outer handle and It can be switched to an unlocked state that allows the door to be opened by operating the inner handle.

In such a door lock device, the outer handle and the inner handle are commonly configured so that the door can be opened and closed in common. However, in order to achieve such a function, for example,
The outer handle must be maintained in a stopped state even when the inner handle is operated. Therefore, in the door lock device disclosed in the above-mentioned published utility model publication, a long hole is formed in the lower end portion of the push rod connected to the outer handle, and the push rod connected to the opening / closing operation portion of the door is connected. By providing a pin, the engagement of this elongated hole and the connecting pin,
The above function is achieved.

(Problems to be Solved by the Invention) However, when the elongated hole is formed in the lower end portion of the push rod as described above, the following problems occur.

That is, because of the elongated hole, the lower end of the push rod is free to some extent, so when the door bulges outward due to a vehicle collision, the push rod is pulled toward the outer handle side. There is a risk that Then, due to the movement of the push rod, the upper wall of the elongated hole and the connecting pin of the push lever are separated from each other, and even if the outer handle is operated and the push rod is pushed down, the wall of the elongated hole does not function as the push lever. A vehicle door that cannot hit the connecting pin and therefore can be opened by operating the outer handle even when the door bulges outward, such as during a rear-end collision. It is intended to provide a locking device.

(Means for Solving the Problems) The present invention includes an outer handle and an inner handle that are rotatably supported on a door, and a locked state that locks the door in a closed state and an unlock state that allows the door to be opened. In a vehicle door lock device that can be switched to a state, a base plate fixed to a door, and a rod mounting portion provided on the base plate, to which a push rod connected to the outer handle is operably attached, the push rod, In addition to being formed in an extendable shape, the rod mounting portion is provided with a restraining means for restraining the lower end of the push rod from moving toward the outer handle side when the door is closed. To do.

The long hole that functions to keep the outer handle in a stopped state even when the inner handle is operated is provided after the push lever in the force transmission path for opening the door. Good.

(Operation and effect of the invention) In the present invention, the rod mounting portion is provided with a restraining means,
Since the lower end of the push rod is prevented from moving to the outer handle side when the door is closed, the movement of the outer handle is transmitted to the push lever via the push rod, so even during an accident. The door can be opened from outside the vehicle. At the time of the above-mentioned accident, the distance between the outer handle and the restraining means is widened, but this can be absorbed by making the push rod extendable, and the push rod will not be cut.

(Embodiment) Hereinafter, a door lock device for a vehicle according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a door lock device of the present invention and a vehicle door in which the door lock device is incorporated, and FIGS. 2 and 3 are a front view and a side view of the door lock device, respectively. It is a figure.

In these drawings, reference numeral 1 indicates a door, and this door 1
Includes an inner panel 2 and an outer panel 3, and a main part of the door lock device 10 is arranged and attached between the inner panel 2 and the outer panel 3.

The door lock device 10 has a base plate 11 fixed to the inner panel 2 of the door 1. The base plate 11 includes a set plate 12 formed integrally with the base plate 11. The set plate 12 is provided in parallel with the base plate 11,
A pivot 13 is attached between them. A push lever 14 is pivotally supported on the pivot 13.
An upper end of an operation link 16 is pivotally attached to the push lever 14 via a first shaft 15, and the link is rotatable around the shaft 15 and is also vertically operable. A projecting portion 18a of a rotating plate 18, which is rotatably supported by the base plate 11 via a pivot, is slidably fitted in an elongated hole 17 formed at a lower end of the operation link 16. .

The lower end of the operating rod 19 shown in FIGS. 1 to 3 is pivotally attached to the right end of the rotating plate 18 in FIG. The operating rod 19 is movable in the vertical direction, and an inner lock knob 20 protruding from the door 1 inside the vehicle is attached to the upper end of the operating rod 19. At the left end of the rotary plate 18, a long hole 21 extending obliquely in the vertical direction is provided.
Are formed. The elongated hole 21 is provided in FIGS.
The lower end of the second operating rod 22 shown in the figure is slidably fitted. The upper end of the operating rod 22 is connected to the operating plate 24 of the cylinder lock 23.

As shown in FIGS. 6 and 7 in addition to FIGS. 1 to 3, the outer panel 3 of the door 1 is provided with an outer member for opening the door lock device 10 from the outside of the vehicle body. The handle 25 is attached. The outer handle 25 extends horizontally in the front-rear direction of the vehicle body and is rotatably supported by a support shaft 26 attached to a support bracket (not shown) fixed to the outer panel 3 so as to be rotatable outward of the vehicle body. The door is opened by pivoting outward. In FIG. 6, the closed position of the outer handle 25 is shown by a solid line, and the open position thereof is shown by a chain line. The outer handle 25 is biased in the closing direction by a coil spring 26a wound around the support shaft 26, and in a normal state, is held at a predetermined closed position by means such as a stopper.

An arm 27 extending inward of the vehicle body is fixed to the outer handle 25, and an upper end of a push rod 29 is connected to the arm 27 via a connecting tool 28. This connector 28 is screw-type and therefore
The position of each part of the push rod 29 can be adjusted. As can be seen from FIGS. 1 and 2, the push rod 29 is not a straight one but is formed in a bent state, and its substantial length can be extended, and it is almost diagonal from the outer handle. It extends rearward and downward, and its lower end 30 reaches the set plate 12. The push rod 29 moves downward to open the door when the outer handle 25 pivots outward.

A pin 31 is attached to the lower end 30 of the push rod 29. As can be seen from FIG. 5, the pin 31 has a first portion 31a and a second portion 31b which project to the left and right of the push rod 29 and extend. The first portion 31a of the pin 31 is slidably fitted in an elongated hole 32 formed in the set plate 12 so as to extend in the vertical direction. The first portion 31a is set so as to be at the uppermost position of the slot 32 when the outer handle 25 is at the closed position shown by the solid line in FIG. As a result, the upper portion of the elongated hole 32 of the set plate 12 serves as a stopper (suppressing means) 33 for preventing the lower end of the push rod 29 from moving further upward. Further, the side wall formed by the elongated hole 32 serves to guide the first portion 31a of the pin 31 when the push rod 29 moves downward. On the other hand, the second portion 31b of the pin 31 is slidably fitted in an elongated hole 34 formed in the uppermost portion of the operation link 16 so as to extend in the vertical direction. This second part 31
b is different from the case of the first portion 31a in the normal state,
It is set to be located at the lowest position of the long hole 34.
As a result, even if the push lever 14 is actuated via the rod 36 by the operation of the inner handle 35, the actuation of the push lever 14 will not occur.
However, it is not transmitted to the push rod 29.

The push lever 14 is provided with a spring 37 that urges the push lever 14 to rotate in a direction to pull up the operation link 16. In the lock device 10, reference numeral 38 is an actuator that is engaged with a striker of the door and is connected to a lock claw (not shown in the drawing) that actually locks the door. When the actuator 38 is pushed by the pushing portion 39 of the actuating link 16 which moves downward, the actuating element 38 actuates the lock claw, disengages from the striker, and enables the opening operation of the door. The operating link 16
The downward movement of the
It is performed via the push rod 29 or by operating the inner handle 35 through the push lever 14. When the door is opened by operating the inner handle 35, the outer handle 25 does not move due to the action of the elongated hole 34.

The actuator 38 can be deviated from the locus of operation of the pressing portion 39 of the operation link 16 by rotating the rotating plate 18 by the lock operation of the cylinder lock 23 and the knob 20. This state is the locked state, and in this state, no matter how much the outer handle 25 and the inner handle 35 are operated, the opening operation of the door is not performed.

In the door lock device of the present invention, the rod mounting portion, which is the set plate, is provided with the restraining means, that is, the stopper, to restrain the lower end of the push rod from moving toward the outer handle when the door is closed. The movement of the outer handle is transmitted to the push lever via the push rod. Therefore, a vehicle collision,
Even at the time of a rear-end collision, the door can be opened from the outside of the vehicle. In addition, at the time of the above-mentioned rear collision, the distance between the outer handle and the restraining means widens, but this can be absorbed by being formed by bending the push rod and making it extendable, and the push rod may be cut. Never.

[Brief description of drawings]

FIG. 1 is a perspective view showing a door lock device of the present invention and a vehicle door in which the door lock device is incorporated, and FIGS. 2 and 3 are front and side views of the door lock device, respectively. 4 is a view of the main part of the lock device according to the embodiment of the present invention as seen from the outside of the vehicle body, FIG. 5 is a cross-sectional view taken along the line AA of FIG. 4, and FIG. 6 is an outer handle part. FIG. 7 is a side view of the outer handle portion shown in FIG. 6, as viewed from the inside of the vehicle body. 1 ... Door, 10 ... Door lock device, 11 ... Base plate, 12 ... Set plate, 14 ... Push lever, 15 ... Shaft, 16 ... Operating link, 25
…… Outer handle, 29 …… Push rod, 33…
… Stopper, 34 …… Oval hole, 35 …… Inner handle.

Claims (1)

[Scope of utility model registration request] 1. A door lock for a vehicle, comprising an outer handle and an inner handle rotatably supported on a door, and being switchable between a locked state for locking the door in a closed state and an unlocked state for allowing the door to be opened. The device includes a base plate fixed to a door, and a rod attachment portion provided on the base plate and operably attached to a push rod connected to the outer handle, and the push rod is formed in an extendable shape. In addition, the rod mounting portion is provided with a restraining means that restrains the lower end of the push rod from moving to the outer handle side when the door is closed.