JPH07158331A - Support structure of rotary lever - Google Patents

Abstract

PURPOSE:To pivot a rotary lever on a base board without any play. CONSTITUTION:The shaft 14 of a rotary lever 4 is fitted in the shaft hole 8b of a boss 8 and a fixing claw 14a is engaged at the bottom of the boss 8 and further, the external cylinder 13 is fitted on the boss 8 from the outside. In this way, the rotary lever 4 is kept in the boss 8 and rotatably pivoted. The slant part 14c formed on the shaft is pressed in the shaft hole 8b by the elastic force of the shaft 14 and the downward force acts against the shaft 14 to axially press the external cylinder 13 toward the boss 8 and prevent the axial play of the shaft 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support structure for a rotary lever, which is capable of pivotally supporting a rotary lever on a base plate without play.

[0002]

[Prior Art] Japanese Utility Model Application No. 5-6272 filed by the applicant
In the publication No. 4, an outer cylinder part provided on a turning lever is fitted onto a boss part provided on a substrate, and an engagement pin provided on the turning lever is inserted into a central shaft hole of the boss part. Then, the claw portion provided on the outer periphery of the tip end portion of the engaging pin is locked to the opening edge portion of the shaft hole, so that the turning lever does not slip out of the substrate and is smoothly rotated around the boss portion. A support structure for a pivot lever that is movable is disclosed.

[0003]

However, in the above structure, when it is necessary to lengthen the engaging pin on the side of the rotating lever due to the dimensional relationship between the rotating lever and the substrate, the boss portion and the engaging pin are not formed. A large dimensional error in the axial direction between the two causes the engaging pin to play in the axial direction in the axial direction, which in turn causes rattling of the turning lever. Dimensional accuracy is required.

In view of the above problems, the present invention provides a pivotal support structure for a rotating lever, which prevents the rotating lever from rattling and enables smooth rotation. With the goal.

[0005]

In order to achieve the above object, the present invention provides either a substrate or a rotating lever,
A boss portion having a shaft hole is formed, and on the other side, an outer cylinder portion that is rotatably fitted to the boss portion, and an elastic force in a radial direction that is inserted into the shaft hole of the boss portion, and In a support structure of a rotating lever having a shaft portion having a locking claw that engages with a bottom portion of a boss portion to prevent axial disengagement at a tip portion, a rotation lever supporting structure is formed on the outer periphery of the shaft portion toward the locking claw. It is characterized in that an inclined portion is formed which gradually increases the diameter and abuts the corner portion of the shaft hole to exert an urging force on the shaft portion toward the distal end portion.

[0006]

The shaft portion of the rotating lever is fitted into the shaft hole of the boss portion, the locking claw is engaged with the bottom portion of the boss portion, and the outer cylinder portion is fitted onto the boss portion. The rotating lever is rotatably pivotally attached to the boss portion so as not to come off, and the elastic force of the shaft portion presses the inclined portion formed on the shaft portion against the corner portion of the shaft hole, so that the shaft portion A downward urging force acts on the outer cylinder portion against the axial boss portion, and the axial play of the shaft portion is suppressed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a turning lever of a door lock device for an automobile will be described below with reference to the drawings. In FIG. 3, (1) is a door lock device that holds the door in a closed state by engaging a striker fixed to the vehicle door and fixed to the vehicle body side,
Made of synthetic resin with a meshing mechanism (1a) having a latch that can be engaged with and disengaged from the striker and a locking plate that can be engaged with and disengaged from the latch, and an operation control unit (1b) that controls the release operation of the engagement mechanism (1a). The cover (2)
The operation control unit (1b) located in the
(3), locking / unlocking lever (4), child lever (5), and other turning levers. These turning levers are pivotally attached to the cover (2) by a structure described later.

The inside lever (3) has one end (3a) connected to an inside handle (not shown) arranged inside the door of the vehicle through a connecting member such as a rod or a cable, and the other end (3b). One end of a connecting lever (6) is pivotally attached to this.

The locking / unlocking lever (4) has a first arm portion (4
a) is connected to the connecting portion (10a) of the bell crank (10), and the second arm portion (4b) is connected to a lock knob (not shown) for locking and unlocking provided inside the door. , Fig. 4
It is possible to move to the locked position shown in and the unlocked position which is rotated counterclockwise by a predetermined amount from the locked position. Between the second arm part (4b) and the third arm part (4c) of the locking / unlocking lever (4), when the locking / unlocking lever (4) is in the locking position, it is formed in the cover (2). Opening between the wall (2a) and the wall (2b)
A wall portion (4d) for preventing rainwater from entering the cover (2) is provided by a cover plate (15) fixed to the cover (2) by closing the (2c).

The bell crank (10) holds the upper part of the sub-lever (12) in the arm part (10b) so as to be slidable in the up-down direction and, in conjunction with the rotation of the locking and unlocking lever (4), a protrusion. Department (1
(0c) is elastically engaged with the check part (11a) of the coil spring (11) locked to the cover (2) so that the door can be unlocked and the door cannot be unlocked. It can be moved to the locked position.

Reference numeral (7) is an actuator fixed to the lower part of the cover (2), and an output lever (7a) which can be rotated forward and backward by driving a motor is pivotally attached, and an operating end of the locking and unlocking lever (4). By pressing the first arm portion (4a) and the third arm portion (4c), the locking / unlocking lever (4) can be operated to the locking position and the unlocking position.

The child lever (5) is pivotally attached to the cover (2), holds the lower part of the connecting lever (6) so that it can move up and down, and when the inside lever (3) is released,
The connecting lever (6) engages with the sub-lever (12), the sub-lever (12) engages with the release mechanism, and the child unlock position where the engagement of the engagement mechanism (1a) can be released, and the connecting Lever (6) and sub-lever (12)
It is possible to release the engagement relationship with and move to the child lock position where the release operation of the inside lever (3) is invalidated.

Inside lever (3), locking and unlocking lever
(4), each rotation lever such as the child lever (5) is rotatably supported by the boss portion (8) of the cover (2) as described below. In addition, since all pivotal parts of each turning lever have the same shape, in the following description, the locking / unlocking lever will be described.
Description will be made on behalf of (4).

As shown in FIG. 1, the boss portion (8) formed on the cover (2) has a large diameter portion (8a) protruding from the general surface to the locking / unlocking lever (4) side by a predetermined height. A large-diameter portion (8a) having a cylindrical small-diameter portion (8c) further protruding from the large-diameter portion (8a) and having a smaller diameter than the large-diameter portion (8a) and having a shaft hole (8b) formed in the center thereof. )
A recess (8d) having a diameter larger than that of the shaft hole is formed in the center of the recess, and a recess (8d) is formed at the corner between the recess (8d) and the shaft hole (8b).
A taper portion (8e) that widens toward the side is formed, and at the step between the large diameter portion (8a) and the small diameter portion (8c) on the surface,
A step (8f) is formed.

As shown in FIGS. 1 and 2, the locking / unlocking lever (4) has a cylindrical shape rotatably fitted around the outer periphery of the small diameter portion (8c) of the boss portion (8), as shown in FIGS. Of the outer cylindrical portion (13) and the upper surface (13a) of the outer cylindrical portion (13) so as to project into the outer cylindrical portion (13) and be fitted into the shaft hole (8b) of the boss portion (8). And a shaft portion (14) having a locking claw (14a) engageable with the bottom portion (8g) of the boss (8) at the tip, and the shaft part (14) and the locking claw (14a) An inclined portion (14c) that gradually expands in diameter toward the locking claw (14a) and is capable of contacting the tapered portion (8e) is formed in the corner portion, and the shaft portion (14) has a shaft portion (14c). A slit (14b) cut axially from the tip is formed so that the portion (14) can be elastically deformed in the radial direction.

The shaft portion (14) of the locking / unlocking lever (4) has a boss portion.
It is fitted in the shaft hole (8b) of (8) and the locking claw (14a) is a boss part.
It engages with the bottom part (8g) of (8), and the outer cylinder part (13) is a boss part.
By being externally fitted to the small diameter portion (8c) of (8), the locking / unlocking lever (4) is prevented from slipping off from the boss portion (8) of the cover (2) and pivotally attached rotatably, The inclined portion (14c) is pressed by the taper portion (8e) by the elastic force of the shaft portion (14), and the shaft portion (14)
A downward biasing force is applied to the bottom (1) of the outer tube (13).
3b) is pressed against the stepped portion (8f) or the upper surface (13a) is pressed against the upper surface (8h) of the boss portion (8), so that the shaft portion (14) and the shaft hole are formed.
Even if there is a dimensional error in the axial direction from (8b), the axial play of the shaft (14) is suppressed, and the locking / unlocking lever is strong.
(4) rattling is suppressed and smooth rotation can be obtained.

6 and 7 show a second embodiment of the present invention. In the second embodiment, the locking claws (1
An inclined portion (14d) having a diameter enlarged toward 4a) is formed.
The inclined portion (14d) is pressed against the lower corner portion of the shaft hole (8b) by the elastic force of the shaft portion (14) in the radial direction, and applies a downward biasing force to the shaft portion (14). As a result, it is possible to suppress the rattling of the shaft portion (14) in the axial direction similarly to the first embodiment.

8 and 9 show a third embodiment of the present invention. In the third embodiment, at the corners of the shaft portion (14) and the locking claw (14a),
An inclined part (14e) is formed. The inclined part (14e) is
The radial elastic force of 4) is pressed against the corner portion of the shaft hole 8b of the boss portion 8 to exert a downward biasing force on the shaft portion 14, which is similar to the above-described embodiment. Thus, the rattling of the shaft portion (14) in the axial direction can be suppressed, and the rattling of the locking / unlocking lever (4) can be suppressed to obtain a smooth rotation.

In the above embodiment, the embodiment in which the present invention is applied to the locking / unlocking lever has been described.
Of course, it may be applied to other levers such as (3) and the child lever (5). Further, the boss portion (8) may be provided on the rotation lever side, the outer cylinder portion (13) and the shaft portion (14) may be formed on the substrate side such as the cover (2), and they may be fitted to each other. .

[0020]

As described above, according to the present invention, the outer diameter of the shaft portion is gradually increased toward the locking claws, and is brought into contact with the corner portion of the shaft hole so that the tip end portion with respect to the shaft portion. By forming the inclined portion that applies the urging force toward, the axial urging force is applied to the shaft portion, and even if there is a dimensional error in the axial direction between the shaft hole and the shaft portion. It is possible to prevent the rotation lever from rattling and obtain smooth rotation.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a main part in a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the locking / unlocking lever in the first embodiment.

FIG. 3 is a side view of a door lock device.

FIG. 4 is a front view of the cover showing a state in which a cover plate is removed.

5 is a cross-sectional view taken along the line AA in FIG.

FIG. 6 is a vertical cross-sectional view of a main part in a second embodiment of the present invention.

7 is an enlarged view of part VII in FIG.

FIG. 8 is a vertical cross-sectional view of a main part in a third embodiment of the present invention.

9 is an enlarged view of an IX portion in FIG.

[Explanation of symbols]

 (2) Cover (board) (4) Locking and unlocking lever (rotating lever) (8) Boss (8b) Shaft hole (8d) Recess (8f) Step (13) Outer cylinder (14) Shaft (14a) ) Locking claw (14b) Slit (14c) (14d) (14e) Inclined part

Claims (2)

[Claims] 1. A substrate or a turning lever,
A boss portion having a shaft hole is formed, and on the other side, an outer cylinder portion that is rotatably fitted to the boss portion, and an elastic force in a radial direction that is inserted into the shaft hole of the boss portion, and In a support structure of a rotating lever having a shaft portion having a locking claw that engages with a bottom portion of a boss portion to prevent axial disengagement at a tip portion, a rotation lever supporting structure is formed on the outer periphery of the shaft portion toward the locking claw. A support structure for a rotating lever, characterized in that an inclined portion is formed which gradually increases in diameter and abuts a corner portion of a shaft hole to exert a biasing force on the shaft portion toward a distal end portion. 2. The support structure for a rotating lever according to claim 1, wherein a taper portion capable of contacting the inclined portion of the shaft portion is formed at a corner portion of the shaft hole.