JPH0325591B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a door lock device used for a side door of an automobile, and more particularly to a door lock device equipped with an erroneous swing mechanism.

In conventional door lock devices of this kind, the movement of the outside handle is generally transmitted to the push lever, and the movement of the inside handle is also transmitted to the push lever via the open lever, and when both handles are operated, the push lever is moved straight, and the movement of the inside handle is transmitted to the push lever. The push lever is configured to push the open lift lever. In the locked state, the locking lever shifts the straight direction of the push lever so that the push lever does not push the open lift lever. still,
There are also devices that transmit the movement of the inside handle to the open lift lever without going through the push lever (see, for example, Japanese Utility Model Application Publication No. 154994/1983).

In any case, the conventional device uses a push lever that moves in a straight line, and locking is performed by shifting the straight direction of the push lever, so a linear guide mechanism for the push lever or a mechanism for shifting the straight direction of the push lever is required. On the other hand, it is also necessary to rotatably support the open lift lever and the like. For this reason, in the conventional device, a linear guide mechanism and a rotary support mechanism are used together, resulting in a problem that the mechanism becomes complicated.

The present invention was made in view of this problem, and
The purpose is to eliminate the push lever that moves in a straight line and provide a door lock device with a simple structure.

To achieve the above object, the present invention includes a rotatable latch that engages with the striker in a recess on one side of the body, a rotatable pawl that engages with a retaining pawl of the latch, and a rotatable pawl that disengages the latch. A first spring that biases the pawl to rotate toward the latch, and a second spring that biases the pawl to rotate toward the latch, and a circular hole formed in the pawl is provided with a first spring that biases the pawl to rotate toward the latch, and a circular hole formed in the pawl is provided with a first spring that biases the pawl to rotate toward the latch. A door lock device in which a pin is loosely inserted through a drilled hole in the body, and the pawl is moved in a direction to disengage from the retaining pawl of the latch through the pin, thereby obtaining an open state. an outer lever rotatably attached to the other side of the body and rotated according to the movement of the inside handle and the outside handle; and a plane coaxial with the outer lever and parallel to the rotation plane of the outer lever. The lever is attached to the other side of the body so as to rotate within the outer lever, and the tip thereof is provided with an engaging portion that protrudes toward the outer lever, and the intermediate portion is provided with the engaging portion that is loosely inserted into the circular hole of the pole. an open lift lever with a protruding pin; an arm portion of the outer lever that can be rotated in a plane parallel to the rotational plane of the outer lever to select an unlocked position and a locked position;
An intermediate portion is pivotally attached to a position outside the engaging portion of the open lift lever when viewed from the center of rotation of the outer lever, and an intermediate portion is provided at one end to rotate the outer lever in the door opening operation direction when the outer lever is in the unlocked position. When the outer lever is in the locked position, the hook is long enough not to come into contact with the engaging part of the open lift lever, and when the outer lever is in the locked position, the hook is long enough to not come into contact with the engaging part of the open lift lever. The other end is pressed against the engaging portion of the open lift lever when the open lift lever rotates together with the pin that moves away from the latch when in the locked position. a first locking lever formed to rotate and return to an unlocked position; and a second locking lever connected to the other end of the first locking lever via a rod. It is characterized by:

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 8, 1 is a base plate, 2 is a body made of a synthetic resin material, and these are integrally laminated with a countersunk machine screw 3, and the space formed between them is As shown in FIG. 3, a latch 5 is pivotally supported by a pin 4, a spring 6 biases the latch 5 to rotate in the disengagement direction via a pin 5c implanted in the latch 5, and a center pin 7 is also supported. A pawl 8 rotatably supported by the latch 5, a spring 9 that biases the pawl 8 to rotate toward the latch 5, and a slide block 11 that takes up the play of the striker 10 when it is engaged with the latch 5.
etc. are arranged. The above-mentioned pole 8 has a circular hole 8
A is bored in the circular hole 8a, and a pin 12 which is caulked to the open lift lever 12 is inserted into the circular hole 8a.
The tip of b is inserted loosely through an elongated hole 2a bored in the body 2. This allows Paul 8
is rotated in conjunction with the open lift lever 12, and its rotation range is limited to the pin 12 on the inner wall of the elongated hole 2a, similar to the open lift lever 12.
It is limited to the range where b comes into contact.

The open lift lever 12 is attached to the body 2 coaxially and rotatably with the outer lever 13, and its cut-out portion (engaging portion) 12a has a middle portion pivotally attached to the arm portion 13a of the outer lever 13. 1. The hook 14a of the locking lever 14 can be engaged and disengaged. The outer lever 1
3 is urged to rotate clockwise in FIG. 1 by a spring 15, and its overall shape is shown in FIG. abutment part 13b, cut-out part 13c, and stopper 13d at full stroke
is provided. Also, the first locking lever 1
4, one end of a locking rod 16 is rotatably attached to the end opposite to the hook 14a by a snap, and the other end of the locking rod 16 is attached to a second locking lever 17 by a similar means. There is. Second locking lever 17
The middle portion of the lock is pivotally attached to the inside of the side portion 2b of the body 2, and the other end is connected to an inner lock button (not shown). The spring 17a is a turnover spring and is used to cause the second locking lever 17 to take positions at both ends of its rotation range. As a result, the first locking lever 14 is moved to either the unlocked position or the locked position.

The pivot point of the intermediate portion of the first locking lever 14 to the arm portion 13a of the outer lever 13 is selected at a position outside the cut-out portion 12a of the open lift lever 12 when viewed from the rotation center of the outer lever 13. There is. The hook 14a, which is formed to protrude toward the rotation center of the outer lever 13, allows the outer lever 13 to move in the door opening operation direction (reverse direction in FIG. 1) when the first locking lever 14 is in the unlocked position (the position shown in FIG. 1). (clockwise), it comes into contact with the cut-out portion 12a of the open lift lever 12, and the first
When the outer lever 13 rotates in the door opening operation direction while the locking lever 14 is in the locking position (a position rotated counterclockwise from the position shown in FIG. 1),
The length is selected so that it does not come into contact with the cut-and-raised portion 12a of the open lift lever 12. Furthermore, the hook 1 is positioned relative to the rotation center of the locking lever 14.
When the open lift lever 12 rotates together with the pin 12b that moves away from the latch 5 when it is in the locked position, the portion opposite to 4a is pressed by the cut-out portion 12a of the open lift lever 12 and unlocked. shaped to return to position.

Reference numeral 18 denotes an inner lever whose middle portion is pivoted inside the side portion 2b of the body 2, and whose one end is connected to an inside handle (not shown). At the other end of this
A long hole 18a extending in the vertical direction in FIG. 7 is bored, and a pin 19 is disposed along the long hole 18a so as to be slidable in the vertical direction in FIG. 7 (radial direction of the pin 19). There is. The cut-out portion 13c of the outer lever 13 is located close to the circumferential surface of the pin 19,
When in contact with the pin 19, it is adapted to be interlocked with the inner lever 18. Reference numeral 20 denotes a child-proof lever pivotally attached to the outside of the side part 2b of the body 2 at the center thereof, and the arm part 20a has a long hole 2.
0b is bored and a pin 19 is inserted therein.

Next, the operation of the embodiment apparatus having the above configuration will be explained.

1 to 8 show the unlocked state when the door is closed, but if you want to open the door in this state from inside the vehicle, operate the inside handle and move the inner lever 18 in the counterclockwise direction in FIG. the outer lever 13 via the pin 19.
is rotated counterclockwise in FIG. 1, and the first locking lever 14 pivotally attached to the arm portion 13a of the outer lever 13 is pushed down downward in FIG. This pushing down action causes the hook 14a of the first locking lever 14 to push the raised portion 12a of the open lift lever 12, causing the open lift lever 12 to rotate in the counterclockwise direction in FIG. The rotation of the pin 12b in conjunction with the rotation of the open lift lever 12 disengages the retaining pawl 5a of the latch 5 from the pawl 8, and the latch 5 is moved by the action of the spring 6 as shown in FIG. It rotates clockwise, and the door lock body moves relative to the striker 10 to open the door. To open the unlocked door from outside the vehicle when the door is closed, operate the outside handle, rotate the outer lever 13 counterclockwise in FIG. Just move it below. As a result, the door can be opened with the same operation as when opening the door from inside the vehicle.

If you lock an unlocked door from inside the vehicle,
The second locking lever 17 rotates counterclockwise in FIG. 2 and the locking rod 16 is pulled up, so the first locking lever 14 rotates counterclockwise in FIG. Stay away from 12.

In such a locked state, even if the outside handle is operated and the outer lever 13 is rotated counterclockwise, the hook 14a of the first locking lever 14 will no longer touch the cut-out portion 12a of the open lift lever 12. It is possible to maintain the locked state by simply swinging without making contact.

In order to obtain the closed state again after opening the door, it is sufficient to press the door lock device main body against the striker 10.
That is, the latch 5 may be rotated against the spring 6 until the latch 5 and pawl 8 are engaged as shown in FIG. In this case, even when the first locking lever 14 is in the position shown in FIG. 1 at the time of starting door closing, as well as in the locked position, the door becomes unlocked after closing. The reason is that even if it is in the locked position, in order to move to the position shown in Figure 3, the pole 8 must be rotated further counterclockwise than the position shown in Figure 3. Open lift lever 12 during this swinging
The cut-out portion 12a of the first locking lever 1
4, and rotate it in the clockwise direction in FIG.
This is because the first locking lever 14 is returned to the position shown in FIG. 1 (this is called a canceling action). However, if the first locking lever 14 in the locked position is pushed downward in FIG. 1 by operating the outside handle and the door is closed in that state, a so-called keyless lock can be performed. That is, when operated as described above (closing the door), even if the cut-out portion 12a of the open lift lever 12 rotates in the counterclockwise direction in FIG.
Since the first locking lever 14 escapes downward, the first locking lever 14 is not rotated clockwise, and therefore, even if the outside handle is released after the door is closed, the locked state is ensured.

As explained above, the present invention includes a first locking lever that is pivotally connected to the arm portion of an outer lever that rotates in accordance with the movements of an inside handle and an outside handle, and one end of the first locking lever is connected to a second locking lever. The first locking lever is connected to the second locking lever via a rod, the other end of the first locking lever is formed with a hook, and the open lift lever is provided with an engaging portion that engages and disengages from the hook. The pawl is configured to disengage from the latch, and the missed swing is performed by releasing the hook of the first locking lever from the engagement portion of the open lift lever using the second locking lever. It is. Therefore, in the present invention, instead of the push lever that moves in a straight line, the outer lever is provided coaxially and rotatably with the open lift lever, so that the linear guide mechanism and the rotary support mechanism are not mixed, and the structure is simple. A door lock device can be realized.

[Brief explanation of the drawing]

FIG. 1 is a front view of the door lock device of the present invention, FIG. 2 is a right side view of FIG. 1, FIG. 3 is a rear view of FIG. 1, and FIG. 4 is a sectional view taken along line AA of FIG. 5 is a sectional view taken along the line BB in FIG. 1, FIG. 6 is an external view of the outer lever, and FIGS. 7 and 8 are exploded perspective views showing essential parts of the door lock device shown in FIG. 1. 1...Base plate, 2...Body, 5...
Latch, 8... Paul, 10... Striker, 1
2... Open lift lever, 12a... Cut-and-raised portion (engaging portion), 13... Outer lever, 14...
...First locking lever, 14a...Hook, 1
6...Rod, 17...Second locking lever,
18...Inner lever, 18a...Elongated hole, 19...
...Pin, 20...Lever.

Claims (1)

[Scope of Claims] 1. A rotatable latch that engages with the striker in a recess on one side of the body, a rotatable pawl that engages with a retaining pawl of the latch, and a rotatable pawl that engages with a retaining pawl of the latch, which moves the latch in the disengagement direction. A first spring that biases the pawl to rotate, and a second spring that biases the pawl to rotate toward the latch.
A spring is provided in the pole, and a pin is loosely inserted from the other side of the body through the hole in the body, and the pole is connected to the latch through the pin. In the door lock device which obtains the door open state by moving the door in the direction of releasing the engagement with the retaining pawl, the door lock device is rotatably attached to the other side of the body and rotates according to the movement of the inside handle and the outside handle. an outer lever that is attached to the other side of the body so as to rotate coaxially with the outer lever and within a plane parallel to the rotation plane of the outer lever, and a tip of the outer lever that protrudes toward the outer lever; an open lift lever from which the pin protrudes, which is loosely inserted into the circular hole of the pole; and an open lift lever that rotates in a plane parallel to the rotation plane of the outer lever. An unlocked position and a locked position can be selected, and an intermediate portion is pivotally attached to an arm portion of the outer lever at a position outside an engaging portion of the open lift lever when viewed from the center of rotation of the outer lever. , on one end side, when the outer lever is in the unlocked position and rotates in the direction of the door opening operation, it comes into contact with an engaging part of the open lift lever, and when the outer lever is in the locked position and rotates in the direction of the door opening operation. A hook having a length that does not come into contact with the engaging portion of the open lift lever is formed to protrude toward the center of rotation of the outer lever, and the other end side is provided with a hook that moves in a direction away from the latch when in the locked position. a first locking lever formed so that when the open lift lever rotates together with a pin, the locking lever is pressed by the engaging portion of the open lift lever and rotates to return to the unlocked position; A door locking device comprising: a second locking lever connected to the other end via a rod.