JPH0743389Y2 - Lever bias retention structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention holds a lever pivotally mounted on a mounting body in a predetermined position by a biasing force of a biasing member interposed between the mounting body and the lever. The present invention relates to a biasing holding structure for a lever.

[0002]

2. Description of the Related Art Conventionally, this type of biasing and holding structure for a lever pivotally mounts a locking lever on a base sub-plate of a body by a pin so that the locking lever can be rotated between a locking position and an unlocking position. In order to stably hold the locked and unlocked positions, one end of the coiled spring is locked to the lower surface side of the lever, and the other end is locked to the base sub-plate side. The biasing direction of the spring acting on the locking lever is reversed with the middle point as a boundary, and the locking lever is biased and held in the locking position or the unlocking position. (See, for example, Japanese Utility Model Publication No. 61-53475)

[0003]

However, in the holding structure in which the coiled spring is interposed between the lower surface of the lever and the base sub-plate as described above, the biasing force of the spring acting on the lever is In addition to the biasing force that rotates the pin around the pin, the biasing force acts in a direction that tilts the lever with respect to the shaft so as to lift it from the mounting surface, so the lever tilts with respect to the plate mounting surface. Therefore, it is difficult to obtain a smooth operation for a long period of time. Further, the spring attachment requires a skilled work of manually engaging both ends with the lever and the plate while twisting the coil portion of the spring, so the attachment is extremely troublesome and is not suitable for automatic assembly. There is a problem.

In view of the above-mentioned problems of the prior art, the present invention provides a lever in which a biasing member can be easily attached and a smooth operation of the lever can be obtained. An object is to provide a bias holding structure.

[0005]

In order to achieve the above object, in the device of the present invention, a lever is pivotally attached to a mounting body by a shaft, and a biasing member is interposed between the lever and the mounting body. In the lever bias holding structure for biasing and holding the lever at a predetermined position by reversing the biasing direction of the biasing member acting on the lever as the lever rotates, an engaging groove is provided at the end of the lever. , An engaging groove that is formed at a suitable position of the mounting body facing the engaging groove of the lever, and has a biasing member of approximately Ω shape, and that is fitted to both engaging grooves of the lever and the mounting body at both ends. And an elastic portion that is elastically deformable is formed between both engaging portions.

[0006]

The urging member has engaging portions at both ends, and an arcuate elastic portion that is elastically deformable toward both engaging portions is formed in the center between both engaging portions. . With the elastic portion between the engaging portions of the biasing member bent in an approximately Ω shape, the elastic member is fitted into the engaging groove formed in the end portion of the lever and the engaging groove formed in the mounting body, respectively. By doing so, the biasing member is attached between the lever and the mounting body, and the lever can be stably biased and held at a predetermined position.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. (1) is a door lock body provided inside a door of a vehicle, such as a latch that engages and disengages with a striker (not shown) provided on the vehicle body side when the door is opened and closed, and a locking plate (2) that engages and disengages with the latch. It comprises a body (3) accommodating the engagement mechanism and an operation mechanism section (4) having a lever and the like for controlling the engagement mechanism.

The operation mechanism section (4) is provided on the back surface (3) of the body (3).
It is attached to the body (3) so as to cover a), and the locking / unlocking lever (6), sub lever (7), inside lever (8),
It has a substantially L-shaped cover plate (5) on which a knob lever (9) and a child lever (10) are arranged, and a body (3).
An outside lever (12) pivotally attached by a shaft (11) and one end (12a) of which is connected to an outside handle (not shown) arranged outside the door is provided on the rear surface (3a) of the vehicle. ing.

The locking / unlocking lever (6) is located on the back of the body (3).
First mounting portion (5a) of cover plate (5) facing (3a)
The central part is pivotally attached by a shaft (13) to the first,
It has a few arm parts (6a) (6b) (6c), and a third arm part
A biasing member (20) whose ends are rotatably fitted in the engaging groove (5c) formed integrally with the first mounting portion (5a) of the cover plate (6c). Is biased up and down with an appropriate intermediate position as a boundary, moves to the locking position shown in FIG. 4 and the unlocking position shown in FIG. 5, and is biased and held at each position.

The lower end of the sub-lever (7) is pivotally attached to the other end (12b) of the outside lever (12), and the vertically extending elongated hole (7a) is provided on the lock lever (6). 1 The arm (6a) is slidably engaged with a protrusion (6d) formed at the tip of the arm (6a), is slidably supported by the cover plate (5), and has an unlocking lever (6 ) Is engageable with the locking plate (2) when it is in the unlocked position, and is released when it is in the locked position (7b).

The knob lever (9) has a second mounting portion (5b) formed at a right angle to the first mounting portion (5a) of the cover plate (5).
To the lock knob (not shown) arranged inside the door of the vehicle through a rod or the like, and also to the end portion (9b). Connection lever
It is connected to the second arm part (6b) of the locking / unlocking lever (6) via (17), and the locking / unlocking lever (6) is moved to the locking position and the unlocking position in conjunction with locking and unlocking operations of the lock knob. Can be activated.

As shown in FIG. 5, when the locking / unlocking lever (6) is in the unlocking position, the outside lever (12) is released (actually shown in FIG. 4) to release the sub-lever (7). Department
(7b) can move the locking lever (2) in the releasing direction as shown by the arrow in FIG. 5 to release the engagement between the latch and the striker and open the door. Further, as shown in FIG. 4, when the locking / unlocking lever (6) is in the locking position, the release part
(7b) deviates from the movement locus of the locking lever (2),
Even if the sub-lever (7) is moved upward by the operation of the outside lever (12), the release part (7b) swings against the locking lever (2) and the door opening operation becomes impossible.

The inside lever (8) is a cover plate.
The second mounting portion (5b) of (5) is pivotally attached by a shaft (15), and the connecting portion (8a) is connected to an inside handle (not shown) disposed inside the door via a wire. ,axis
A coupling lever (16) whose end (16a) is engageable with and disengageable from an engaging portion (7c) of the sub-lever (7) is slidably engaged with (15).
When the locking / unlocking lever (6) is in the unlocking position, the inside lever (8) is opened by opening the door of the inside handle.
The connecting lever (16) rotates integrally with the connecting lever (16), and the end portion (16a) of the connecting lever (16) engages with the engaging portion (7c) of the sub-lever (7). Locking lever
(2) can be released. When the locking / unlocking lever (6) is in the locking position, the end of the connecting lever (16)
The sub-lever (7) cannot move because the sub-lever (7) swings against the engaging portion (7c) of the sub-lever (7) and the door opening operation becomes impossible.

The child lever (10) is a cover plate.
An operating portion (10a) is pivotally attached to the second mounting portion (5b) of (5) by a shaft (18), and has one end protruding outward from the panel surface through a hole formed in the door panel. Have the other end
The connecting lever (16) is connected to the (10b) through the long hole (10c), and the connecting lever (16) is operated by operating the operation part (10a).
The end portion (16a) of the connecting lever (16) is moved back and forth with respect to the engaging portion (7c) of the sub-lever (7).
When the vehicle is retracted from the engaging portion (7c) and is disengaged, the operation of the inside handle can always be invalidated regardless of the position of the locking / unlocking lever (6).

The urging member (20) is made of a synthetic resin material and has cylindrical engaging portions (20a) at both ends.
An arcuate elastic portion (20b) that is elastically deformable in the direction of both engaging portions (20a) is formed in the center between both engaging portions (20a). To attach the biasing member (20), the elastic portion (20b) is bent in a substantially Ω shape, and both engaging portions (20a) are attached to the third arm portion (6c) of the locking / unlocking lever (6). Semi-circular engagement groove (6e) formed at the tip and first mounting portion of cover plate (5)
The semi-circular engagement groove (5c) formed in (5a) is fitted between the locking / unlocking lever (6) and the cover case (5) by fitting them as shown in FIG.

When the locking / unlocking lever (6) is in the locking position as shown in FIG. 4, the urging force of the elastic portion (20b) passes under the shaft (13) as shown by arrow A. The locking / unlocking lever (6) can be stably biased and held in the locking position by acting in a clockwise direction around the shaft (13), and the locking / unlocking lever (6)
When the is rotated counterclockwise from the locked position, the elastic part (20b)
When the third arm (6c) bends inward and almost reaches the center of the moving range between the locked position and the unlocked position, the urging force of the elastic part (20b) is indicated by the arrow B as shown in FIG. Axis (1
By acting in a counterclockwise direction around the shaft (13) so as to pass over the upper side of (3), the locking / unlocking lever (6) can be stably biased and held in the unlocked position.

The urging member (20) is provided with a locking / unlocking lever (6).
The first mounting portion (5) of the cover plate (5) to which the
Since it is mounted almost parallel to the mounting surface of a) and its biasing direction acts substantially parallel to the mounting surface, a biasing force that partially lifts the locking / unlocking lever (6) acts. Since the locking / unlocking lever (6) does not tilt with respect to the shaft (13), a smooth operation can always be obtained. Furthermore, by fitting an elastic body such as a cylindrical rubber into the elastic portion (20b), the locking / unlocking lever (6) can be biased and held with a large biasing force.

[0018]

[Effects of the Invention] As described above, the present invention has the following effects. (a) With a simple operation of fitting the engaging portions formed at both ends of the biasing member into the engaging grooves of the lever and the mounting body,
The biasing member can be mounted between the lever and the mounting body. (b) Since the biasing force that acts on the lever acts around the shaft, the lever does not tilt with respect to the mounting surface, and it is possible to always obtain a smooth rotation of the lever.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a perspective view of the same main portion.

FIG. 3 is likewise an exploded perspective view of a main part before attaching the biasing member.

[Fig. 4] Similarly, when the locking / unlocking lever is in the locking position,
It is a vertical front view which removed a part of cover plate.

[Fig. 5] Similarly, when the locking / unlocking lever is in the unlocking position,
It is a vertical front view which removed a part of cover plate.

FIG. 6 is a side view of the same.

[Explanation of symbols]

(1) Door lock body (3) Body (4) Operation control part (5) Cover plate (5a) First mounting part (mounting body) (5b) Second mounting part (5c) Engagement groove (6) Locking and unlocking lever
(Lever) (6e) Engagement groove (7) Sub-lever (13) Shaft (20) Energizing member (20) Elastic part (20a) Engaging part

Claims (1)

[Scope of utility model registration request] 1. A biasing direction of a biasing member which pivotally attaches a lever to a mounting body by a shaft, and a biasing member is interposed between the lever and the mounting body so as to act on the lever as the lever rotates. In the urging and holding structure of the lever for urging and holding the lever in a predetermined position, an engaging groove is provided at the end of the lever, and the engaging groove is provided at an appropriate position of the mounting body facing the engaging groove of the lever. In addition, the biasing member is formed into an approximately Ω shape, and the engaging portions that fit into the engaging grooves of the lever and the mounting body are formed at both ends, and the elastic portions that are elastically deformable between the engaging portions. An urging holding structure for the lever, characterized in that