JPS624511B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a self-cancelling device in a locking device for an automobile.

(Prior Art) A known automobile door is locked in the same way as if it were locked with a key when a locking knob installed on the inside of the door is pressed.

However, the lock knob may be pushed unconsciously when exiting the vehicle, and if the door is then closed, it will be locked and the key may be misplaced. Therefore, when simply closing the door,
The locking knob is configured to automatically return when pressed.

This is called a self-cancelling device, and most cars already have one.

(Problems to be Solved by the Invention) The previously known self-cancelling device was attached to the outside of the back plate. This not only complicates the outer structure of the back plate, but also causes a collision with the metal back plate itself, the metal open lever, the metal connection rod, etc., and causes unpleasant noise.

The present invention improves this point and provides a self-cancelling device on the side of the ratchet to simplify the structure.
In addition, unpleasant noises are reduced.

Furthermore, the present invention ensures that even if the self-cancelling lever is installed in the narrow area, the pin displacement operation by the lever is reliable.

(Means for Solving the Problem) The present invention thus devised includes a latch 6 that engages with a striker 9 to rotate, a latch 8 that prevents the latch 6 from being reversed, and an abutment edge 19 of the latch 8. a pin 17 that moves toward and away from the pin 17;
an open lever 24 for disengaging the latch 8 from the latch 6 by pressing the abutment edge 19 through the pin 17; In the device provided with the locking lever 26 for switching, the recess 4 in which the ratchet 8 is provided
A self-cancel lever 22 is fixed to the inner side position by a shaft 21, and when the door is closed and the latch 6 rotates, the self-cancel lever 22 is pushed outward by the latch 8 due to the displacement of the latch 8. In addition, the self-cancel lever 22 has its longitudinally intermediate position in contact with the ratchet 8, and the tip of the self-cancel lever 22 is connected to the pin 17 in the locking position.
This is a configuration of a self-cancelling device in a lock device for an automobile.

(Example) An example of the present invention will be described with reference to the drawings.
2 is a metal cover plate, 2 is a synthetic resin body that is polymerized on its side, and 3 is a metal back plate that is further polymerized on the upper part of the body. However, the ratchets 8 are each mounted on the shaft 7. The latch 6 has an engagement groove 10 into which the striker 9 fits, and a half-lock engagement step 12 and a full-lock engagement step 13 into which the claw 11 of the latch 8 engages, respectively, on its outer peripheral surface.

The latch 8 is on the same rotation plane as the latch 6, and when the door is open (FIG. 3), the latch 6 is oriented to receive the striker 9 by the elasticity of the spring 14 (FIG. 1). When rotating, each half-lock engagement step 1 of the latch 6
2. The tip elastically contacts the outer circumferential surface other than the full lock engagement stepped portion 13.

When the door is closed, when the striker 9 engages with the engagement groove 10 of the latch 6, it is in the position where it engages with the half-lock engagement step 12 and the full-lock engagement step 13.

However, between the state shown in FIG. 3 and the state shown in FIG.
figure).

The metal back plate 3 and the body 2 have a shaft 7 of the ratchet 8, as shown in FIG.
A window 16 is opened at a slightly more distant position. A pin 17 faces into the window 16 and is movable within the window 16 both in the radial direction relative to the shaft 7 and in the circumferential direction of the shaft 7. That is, the pin 17 is not only movable in the radial direction between positions a and b, but also movable in the circumferential direction between positions a and b.

The ratchet 8 is formed into a substantially V-shape, with one protruding piece serving as the aforementioned pawl 11 and the other protruding piece serving as the operating piece 18. The tip of the actuating piece 18 becomes an abutting edge 19, and when the pin 17 is in position a with the pawl 11 engaged with the full lock engagement step 13, it abuts the lower surface of the pin 17 in FIG. located in contact with In this state, when the pin 17 moves from position a to position b by external force, the contact edge 1
Press 9 to rotate the latch 8 clockwise, disengaging the pawl 11 from the full lock engagement step 13 and freeing the latch 6.

An air vibration window 20 is formed between the abutting edge 19 of the actuating piece 18 and the shaft 7. Even if the pin 17 that has been displaced to the b position reaches the d position, the air vibration window 20
It is formed so that it does not come into contact with the operating piece 18 and prevents the ratchet 8 from rotating.

As mentioned above, when the pin 17 is in the a position, it can disengage the latch 6 and the latch 8 (unlocked state), but when it is in the b position, it cannot disengage the latch 8 ( As shown in FIG. 1, the door is completely closed, the striker 9 engages with the latch 6, and the latch 8
When the claw 11 is engaged with the full-lock engagement step 13 and the pin 17 is moved to position b shown in FIG. 2, the lock is engaged.

However, even if the pin 17 is locked in position b in the state shown in FIG. 3, that is, with the door open,
After that, when the door is closed, the pin 17 is automatically returned to position a.

This is called a self-cancelling mechanism, and the self-cancelling mechanism in the present invention is provided within the recess 4.

That is, a self-cancelling lever 22 is mounted by a shaft 21 in a small space left in the recess 4 in which the latch 6 and the latch 8 are mounted. The shaft 21 is positioned at each vertex of a triangle formed by the striker 9, the shaft 7, and the shaft 21, so that the self-cancel lever 22 projects toward the shaft 7. The self-cancelling lever 22 has a shape that projects into the air vibration window 20, and is constantly pressed against the claw 11 by a spring 23. That is, one side of the intermediate portion between the shaft 21 and the tip of the self-cancelling lever 22 is pressed against the pawl 11 of the ratchet 8, and the tip faces the pin 17 at position b in FIG.

Therefore, when the striker 9 engages with the latch 6 and rotates the latch 6 as shown in FIG. As a result, the pin 17 is pushed out to a large extent and automatically returned to position a.

In the figure, 24 is an open lever, 25 is a long hole, 2
6 is a locking lever, and 27 is a connecting rod.

(effect) Next, we will discuss the effect.

Since the present invention has the above-described configuration, when the locking lever 26 is placed in the position shown by the solid line in FIG. is the second
When the door is closed at position a in the figure, the striker 9 engages with the engagement groove 10 of the latch 6, and the pawl 11 of the latch 8 engages with the full lock engagement step 13 of the latch 6.

Therefore, the open lever 24 is rotated in the direction of arrow A in FIG.
When the pin 17 is moved to position c, the abutment edge 1 of the actuating piece 18 of the ratchet 8 is moved by the pin 17.
9 rotates the latch 8 clockwise, thus disengaging the pawl 11 from the full locking step 13, freeing the latch 6 and allowing the door to be opened.

However, if the locking lever 26 is moved to the state shown by the phantom line in FIG. 5 by inadvertently pushing the sill knob before closing the door, the pin 17 attached to the connecting rod 27 will
The position b in FIG. 2 is self-cancelled. That is, normally when the door is closed, when the striker 9 engages with the latch 6, the pin 1
Since 7 is in position b, even if the open lever 24 is rotated in the direction of arrow A and the pin 17 is moved to position d, the actuating piece 1 of the ratchet 8 is moved by the air vibration window 20.
However, in the case of the present invention, a self-cancel lever 22 is installed in the recess 4, and the self-cancel lever 22 When the door is closed, the claw 11 is pushed out by the maximum diameter part 15 of the ratchet 8, as shown in Fig. 4, and this acts to return the pin 17 from the b position to the a position. The lock is to be released.

(Effects) The conventionally known self-cancelling device was attached to the outside of the back plate. This not only complicates the outer structure of the back plate, but also causes a collision with the metal back plate itself, the metal open lever, the metal connection rod, etc., and causes unpleasant noise.

However, the present invention provides a latch 6 that engages with a striker 9 to rotate, a latch 8 that prevents the latch 6 from being reversed, and an abutment edge 1 of the latch 8.
9, a connecting rod 27 having the pin 17, and pressing the abutment edge 19 through the pin 17, the ratchet 8
an open lever 2 for releasing the latch 6 from the latch 6;
4, and a locking lever 26 for switching the connecting rod 27 between the locking position and the unlocking position.The self-cancelling lever 22 is located on the side of the recess 4 in which the ratchet 8 is provided.
1, and the self-cancel lever 22
When the door is closed and the latch 6 rotates, the latch 8 is pressed against the latch 8 and swung outward, and the self-cancelling lever 22 is moved from an intermediate position in the longitudinal direction to the latch 8. 8 and the tip of the self-cancel lever 22 faces the pin 17 in the locking position, which constitutes a self-cancel device in an automobile lock device. Since the self-cancelling device is provided at a side position within the recess 4, the structure is simple, and since it is located within the recess 4, unpleasant noise can be reduced.
Furthermore, the present invention allows the self-cancel lever 22 to be moved at a midpoint in the longitudinal direction of the self-cancel lever 22 by making it contact the ratchet 8 even if the small-sized self-cancel lever 22 is installed in the narrow area.
Since the tip of the lever 2 faces the pin 17 in the locked position, the displacement operation of the pin 17 by the lever 22 is ensured.

[Brief explanation of the drawing]

Fig. 1 shows the striker engaged with the latch and is fully locked, Fig. 2 is a plan view of the window formed in the body, Fig. 3 shows the striker before it is engaged, and Fig. 4 shows the striker in its fully locked state. The striker is engaged with the latch, the latch presses the latch, and the latch presses the self-cancel lever. Figure 5 is a rear view of Figure 1, showing only the main parts. Figure 6 is the rear view of Figure 1. Fig. 7 is a perspective view of the latch, self-cancel lever, connecting pin, and connecting rod; Fig. 8 is a perspective view of the latch, self-cancel lever, connecting pin, connecting rod, locking lever, and open lever. It is. Explanation of symbols, 1... Cover plate, 2... Body, 3... Back plate, 4... Recess, 5...
... shaft, 6 ... latch, 7 ... shaft, 8 ... ratchet, 9 ... striker, 10 ... engagement groove, 11
...Claw, 12...Half-lock engagement step, 13...
...Full lock engagement stepped portion, 14...Spring, 15...
Maximum diameter part, 16...Window, 17...Pin, 18...
... Actuation piece, 19 ... Contact part, 20 ... Air vibration window, 2
1...Shaft, 22...Self-cancel lever, 2
3... Spring, 24... Open lever, 25...
Long hole, 26... Locking lever, 27... Connecting rod.

Claims (1)

[Claims] 1 Latch 6 that engages and rotates with striker 9
and a latch 8 that prevents the latch 6 from reversing.
, a pin 17 that moves toward and away from the contact edge 19 of the ratchet 8, and a connecting rod 27 having the pin 17.
Then, by pressing the abutting edge 19 through the pin 17, the latch 8 is fixed to the latch 6.
A self-cancelling lever is provided at a side position in the recess 4 in which the ratchet 8 is provided. 22 is fixed by the shaft 21,
When the door is closed and the latch 6 rotates, the self-cancel lever 22 is pressed by the latch 8 due to the displacement of the latch 8 and swings outward.
A self-cancelling device for a locking device for an automobile, in which an intermediate position in the longitudinal direction is brought into contact with the ratchet 8, and the tip of the self-cancelling lever 22 is made to face the pin 17 in the locking position.