JPH02136484A - Door lock device - Google Patents

Abstract

PURPOSE:To simplify a mechanism by forming a recessed section to a plane vertical to the pivot of a locking lever and shaping a protruding section rotatably engaged with the recessed section only at the time of revolution to the end section of a driving lever rotatably installed unified with a driving shaft. CONSTITUTION:A recessed section 2 is formed to a plane vertical to the pivot 29 of a locking lever 1, and a driving lever 4 is integrally mounted rotatably to a driving shaft 3 set up in parallel with the pivot 29 in a forward and reverse rotatable manner. A protruding section 5 engaged with the recessed section 2 while being turned and driven only at the time of revolution is shaped at the end section of the lever 4. The locking lever 1 is separated completely from the lever 4 at the time except operation from the driving shaft 3 side by a driving means such as a motor, and released from the rotational resistance of the lever 4. Accordingly, manual operating force can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a door lock device used for, for example, an automobile door.

(Prior Art) A door lock device shown in FIGS. 3 and 4 is conventionally known, and includes a safety lever 12, an inner lever 13. Open lever! 4. Intermediate lever 15. and the lock lever 16 are assembled and formed. That is, the safety lever 2 has a substantially J-shape and is rotatably provided around the first shaft 17. Furthermore, the protrusions 18 and 19 are formed by bending both ends of the safety lever 12.

Inner re/(-1a) has a hook shape, and is rotatably provided on a vertical piece 20 formed by bending the end of the base 11 by a third axis 22 which is orthogonal to the second axis 21.

Open lever I4 is the second axis 2! The open lever 14 can be rotated in the direction of arrow A by rotating the inner lever 13 and moving the tip 24 of the open lever 14 to the left with its hook-shaped tip 23. It looks like this.

The intermediate lever 15 has a first lever that engages with the projections 18 and 19.
．． It has second protrusions 25 and 26 and a long hole 27, and a pin 28 is provided at the end of the oven lever 14 opposite to the tip 24.
They are coupled to each other so that they can rotate relative to each other.

The lock lever 16 is rotatably provided on the fourth M29 on the base 11, and a protrusion 30 formed by attaching a pin to the lock lever 16 is fitted into the elongated hole 27 so as to rotate and slide with the intermediate lever 15. movably engaged.

Further, a gear part 3I is provided on the opposite side of the protruding part 30 of the lock lever 16, and a gear part 32 that is rotationally driven by a motor (not shown) so as to be able to switch between forward and reverse directions is meshed with the gear part 3I. The lock lever 16 is configured so that it can be rotated in the forward and reverse directions by manually applying an external force to the end of the lock lever 16, and in addition, the lock lever 16 can also be rotated in the forward and reverse directions electrically by the motor.

Further, two stoppers 33 and 34 are provided on the base 11 to restrict rotation of the lock lever 16 in forward and reverse directions.

FIG. 3 shows the unlocked state, and when the oven lever 14 rotates in the direction of arrow A, the intermediate lever 15 moves to the right, the first protrusion 25 presses the protrusion 18 to the right, and the safety lever 12 is activated. It is designed to rotate clockwise. As a result, the locked state of the lock portion (not shown) is released as the safety lever 12 rotates.

On the other hand, as shown in FIG.
4, the intermediate lever 15 rotates clockwise and the first protrusion 25 is lowered below the protrusion 18, and the operation of the oven lever 14 causes the intermediate lever 1
5 moves to the right, it does not engage with the protrusion 18, and the safety lever
12 is designed not to rotate. Therefore, the locked state of the lock portion is maintained.

(Problems to be Solved by the Invention) In the above door lock device, a gear 32 for constant driving is meshed with a gear portion 31 formed on the lock lever 16 so that the lock lever 15 can be electrically moved forward or backward. If the gear 32 and the motor are simply connected directly, it will be difficult to rotate the lock lever 16 when manual operation is attempted due to the large rotational resistance of the gear 32 side. Therefore, a clutch mechanism is interposed between the gear 32 and the motor to reduce the force required for manual operation, but this increases the complexity of the device.

The present invention has been made in view of the above-mentioned conventional problems, and aims to provide a door lock device with a simple structure that can be operated by a drive means such as a motor.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention is coupled to an oven lever with a pin so that they can rotate relative to each other, and
In a door lock device including an intermediate lever that engages with a lock lever at an end opposite to the pin joint, a recess is formed in the lock lever in a plane perpendicular to the rotation center axis of the lock lever. On the other hand, a drive lever is attached to the drive shaft, which is parallel to this central axis of rotation and capable of forward and reverse rotation, so that it can rotate integrally therewith, and at the end of this drive lever, it can be rotated into the recessed part only when it is rotated. A convex portion is formed to engage with.

(Function) With the above configuration, the lock lever is in a state of being completely released from the drive lever, that is, the drive section by the drive means, when not being operated by the drive means such as a motor, There is no longer any rotational resistance from the parts.

(Example) Next, one embodiment of the present invention will be described with reference to the drawings.

1 and 2 show a door lock device according to the present invention,
The door lock device shown in FIGS. 3 and 4 is substantially the same except for the electric operation part, and corresponding parts are given the same numbers and explanations will be omitted.

As shown in the figure, in this device, a recess 2 is provided on the opposite side of the protrusion 30 of the lock lever 1, and a fourth shaft 2
A drive lever 4 is attached to a drive shaft 3 which is parallel to the drive shaft 9 and is rotatable in forward and reverse directions, and is rotatable integrally therewith. Further, a convex portion 5 is provided at the end of the drive lever 4, and is formed so as to be rotatably engaged with the concave portion 2 only during this rotation.

That is, when the drive lever 4 is stopped, as shown in FIGS. 1 and 2, the lock lever (2) is completely released from the electrically driven rotary drive section.

Two microswitches 6.7 are provided on both sides of the recess 2 to detect when the rotation limit of the lock lever 1 in the forward and reverse directions is reached and stop the rotation of the drive shaft 3. The lock lever 1 is formed so that it can be electrically confirmed whether it is in the unlocked state as shown in FIG. 1 or in the locked state as shown in FIG. Therefore, in the state shown in FIG. 1, the drive lever 4 can only rotate clockwise as shown by arrow B, whereas in the state shown in FIG. As shown, only counterclockwise rotation is possible.

(Effects of the Invention) As is clear from the above description, according to the present invention, the open lever is pin-coupled with the open lever so that they can rotate relative to each other, and the lock lever is engaged with the end opposite to the pin-coupled portion. In a door lock device equipped with an intermediate lever,
A concave portion is formed in the lock lever in a plane perpendicular to the rotation center axis of the lock lever, and a drive shaft is provided parallel to this rotation center axis so that it can be rotated in a straight forward and reverse direction. When the drive lever is attached, a convex portion is formed at the end of the drive lever so as to be rotatably engaged with the four portions mentioned above only when the lever is rotated.

Therefore, except when the lock lever is operated by driving from the drive shaft side, the lock lever is completely separated from the drive shaft and released from its rotational resistance.
The force required to manually operate the lock lever is reduced, and there is no need for a clutch mechanism on the drive shaft, thereby simplifying the device.

[Brief explanation of the drawing]

1 and 2 are plan views of a door lock device according to the present invention, and FIGS. 3 and 4 are plan views of a conventional door lock device. DESCRIPTION OF SYMBOLS 1... Lock lever 12... Concave part, 3... Drive shaft, 4 Drive lever, 5... Convex part, 14... Open lever 15... Intermediate lever, 28... Pin, 29・・・
・Fourth axis. Figure 1

Claims (1)

[Claims] (1) In a door lock device comprising an intermediate lever that is pin-coupled to an open lever so as to be relatively rotatable to each other and engaged with the lock lever at an end opposite to the pin-coupled portion, the lock lever is attached to the lock lever. A recess is formed in a plane perpendicular to the central axis of rotation of the recess, and a drive lever is attached to a drive shaft that is parallel to the central axis of rotation and capable of forward and reverse rotation, and is rotatable therewith. A door lock device characterized in that a convex portion is formed at an end of the drive lever so that the convex portion rotatably engages with the concave portion only when the drive lever rotates.