JP2002235475A - Lever operating force transmission structure for lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the a backlash of an operation lever when a rotary lever is rotated in a lever operating force transmission structure for a lock device. SOLUTION: The lever operating force transmission structure for the lock device is provided with rotating members 6 and 8 rotatable along the support face 3 of a housing 1 and the operation lever 13 movable along the other support face crossing the support face 3. When the operation lever 13 is moved, the abutting section 13a of the operation lever 13 comes into contact with the rotating members 6 and 8, and the rotating members 6 and 8 are rotated in the prescribed direction. The rotating members 6 and 8 are provided with blocking means 11a, 19a, 20a to be coupled with the operation lever 13 in the direction nearly orthogonal to the other support face 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever force transmitting structure for a lock device.

[0002]

2. Description of the Related Art Conventionally, a locking device is provided on a support surface of a housing attached to a back door of a motor vehicle, with a latch that can be engaged with and disengaged from a striker, a locking plate that engages with the latch and prevents rotation of the latch. And an open lever connected to an operation handle provided on the back door on the other support surface of the housing with an axis orthogonal to the axial direction of the locking plate. By rotating the open lever by operating the operation handle, the contact portion of the open lever comes into contact with the contacted portion of the locking plate, thereby rotating the locking plate from the engagement position to the release position. (For example, see
000-27511).

[0003]

However, in the above-described structure, as shown in FIG. 9, a contact portion (101a) of an operating lever (101) forming an open lever and a locking plate are formed. Since the movement locus of the rotating member (102) with the abutted portion (102a) is different, the engagement position (the position shown by the solid line) and the release position (the position shown by the imaginary line) of the rotating member (102), In addition, at positions near them, the direction of the contacted portion (102a) is oblique to the moving direction (A) of the contacting portion (101a) of the operating lever (101). As a result, the contact part (101a)
(B) or (C), i.e., rattling in a direction perpendicular to the other support surface (103) on which the operating lever (101) is supported, an excessive force is applied to the shaft supporting the operating lever and its vicinity, The operating lever is bent and the operating lever (10
Since the operating stroke transmitted from 1) to the rotating member (102) may be insufficient, the operating lever and the shaft portion need to be made of strong metal, which increases the weight and cost of the lock device. There's a problem.

The present invention has been made in consideration of the above-mentioned problems of the prior art, and has been made to reduce the weight of the lock device and to prevent rattling of the operating lever when the rotating lever is rotated. It is an object of the present invention to provide a lever operation force transmission structure in the above.

[0005]

According to the present invention, the above-mentioned problem is solved as follows. (1) a rotation member rotatable along a support surface of the housing, and an operation lever movable along another support surface intersecting the support surface;
In the lever operating force transmission structure of the lock device in which the contact portion of the operating lever comes into contact with the turning member and the turning member is turned in a predetermined direction, A blocking means is provided with which the operating lever can engage in a direction substantially perpendicular to the other support surface.

(2) In the above item (1), the blocking means may include:
The recess is opened toward the contact portion of the operating lever and engages with the contact portion.

(3) In the above item (1), the blocking means is
It is a notch with which the projection provided on the operation lever engages.

(4) In the above item (1), the blocking means may include:
A hole into which the protrusion provided on the operation lever is inserted.

(5) In any one of the above items (1) to (4), the rotating member is a locking plate for preventing rotation of a latch that can be engaged with and disengaged from the striker. The plate is pivoted from an engagement position engaging the latch to a release position disengaging from the latch.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. In the following description,
The left side in FIG. 2 is "forward" of the vehicle, and the right side is "rear".
And

The lock device (A) according to the present embodiment is mounted on a back door (not shown) pivotally mounted on the rear portion of the vehicle body so as to be vertically openable and closable, and is fixed to the vehicle body side.
By engaging (S), the back door is restrained in the closed state.

The metal housing (1) of the locking device (A) is provided with a flange portion (1a) protruding left and right on the upper portion of the concave receiving portion (2) and inserted into the flange portion (1a). It is fixed to the lower end surface of the back door with the bolt (not shown).

At the approximate center of the plane portion (3) serving as a support surface in the housing (1), the striker (S) moves in the direction indicated by the arrow shown in FIG. (4) is provided. The plane portion (3) is inclined rearward and upward in accordance with the approach direction of the striker (S).

A metal latch (6) pivotally attached to the plane portion (3) with a vertical shaft (5) and having an engagement groove (6a) capable of engaging and disengaging the striker (S), The latch (6) is opened by engaging with a full-latch pawl (6b) or a half-latch pawl (6c) provided on the latch (6). A metal locking plate (8) for preventing rotation in the direction (counterclockwise in FIG. 3) is disposed with the striker entry groove (4) interposed therebetween.

As shown in FIG. 4, the shafts (5) and (7) are supported between a flat plate (3) and a cover plate (9) fixed to both flanges (1a) of the housing (1). And the upper and lower ends are swaged.

The latch (6) is covered almost entirely with a synthetic resin material except for the claws (6b) and (6c), and is urged in the open direction by a spring (10) wound around a shaft (5). When the back door is closed at the open position where the striker (S) is disengaged from the engagement groove (6a) (shown by an imaginary line in FIG. 5), the striker (S) engages with the engagement groove (6a). By latching
(6) is rotated to the full latch position shown in FIG. 3 against the urging force of the spring (10), and the engaging portion (8a) provided on the locking plate (8) is moved to the latch (6). It is designed to engage with the claw (6b).

The locking plate (8) is entirely covered with a synthetic resin material except for the engaging portion (8a), and has a contact portion (11) extending upward at the rear free end. Is formed, and is urged in the engaging direction (clockwise in FIGS. 3 and 5) by a spring (12) wound around the shaft (7).
From the engagement position shown in FIG. 3 in which (8a) is engaged with the claw portion (6b) of the latch (6), the sub-lever (13) described later resists the urging force of the spring (12), and The engagement portion (8a) is disengaged from the claw portion (6b) by being rotated to the release position shown in FIG.
Can be freely rotated in the opening direction, and the back door can be opened.

The surface of the abutted portion (11) facing the abutting portion (13a) of the sub-lever (13) is formed by recessing a portion of a synthetic resin material toward the abutting portion (13a). A vertical recess (11a) that opens is provided.

A base plate (14), which is fixed on the upper surface of the cover plate (9) and forms another support surface that stands up so as to intersect with the plane portion (3), has a longitudinal axis (15). An open lever (17) connected via a wire (16) to an operation handle (not shown) provided on the back door, and an unlocking lever (1) also connected to a key cylinder (not shown).
8) is pivoted.

The open lever (17) is turned from the inoperative position shown in FIG. 1 in the open direction (counterclockwise in FIG. 1) by the operating handle via the wire (16).

The locking / unlocking lever (18) is rotatable by a key cylinder between an unlocking position shown in FIG. 1 and a locking position rotated a predetermined amount counterclockwise from the unlocking position.

The sub-lever (13) is formed of a synthetic resin material and can be engaged with the recess (11a).
And an elongate hole (13b) in the left-right direction in which a projection (18a) provided on the locking / unlocking lever (18) is slidably engaged, and the right end in FIG. By being pivotally attached to the arm portion (17a) of the open lever (17) with (13c), the open lever (17) is supported so as to rotate and move in the left and right direction along the surface of the base plate (14).

When the unlocking lever (18) is in the unlocking position,
As shown in FIG. 1, the contact portion (13a) of the sub-lever (13) can be engaged with the concave portion (11a) while facing the recess (11a). By moving above the contact portion (11), the contact portion (13a) cannot be engaged with the concave portion (11a).

When the unlocking lever (18) is in the unlocking position,
When the open lever (17) is rotated in the open direction by the operation handle, the sub-lever (13) moves straight in the open direction (to the right in FIGS. 1 and 3), so that the contact portion (13a) is moved. While engaging with the recess (11a), the recess
(11a), the locking plate (8) is rotated from the engagement position to the release position as shown in FIG.
The back door can be opened by releasing the latch of the lock device (A).

At this time, the abutment portion (13a) is wobbled by the engagement with the concave portion (11a) in the direction indicated by the arrow in FIG. 5, that is, the direction perpendicular to the surface of the base plate (14). There is no.

When the contact portion (13a) and the inner portion of the concave portion (11a) are formed into an arcuate surface as shown in the drawing, the contact portion (13a)
The contact with (11a) is stabilized, and the locking plate (8) can be smoothly rotated.

The present invention is not limited to the above-described embodiment, and various modifications are possible. For example, the same effects as those of the above-described embodiment can be obtained even if the concave portion (11a) is provided on the sub-lever (13) side and the protrusion engaging with the concave portion (11a) is provided on the locking plate (8) side. In this case, the projection on the locking plate (8) side constitutes a blocking means as described in each claim.

The present invention is also applicable to a closure device provided with a close lever (not shown) for forcibly rotating the latch (6) from the half latch position to the full latch position. In this case, rattling of the closing lever can be prevented.

FIG. 7 shows a second embodiment of the present invention.
In this embodiment, the sub lever (13) has a projection (13) protruding toward the abutted portion (19) of the locking plate (8).
d), and a notch (19a) on the upper edge of the contacted part (19) with which the projection (13d) can be engaged, so that the sub-lever (13) can be opened in the open direction (the direction indicated by the arrow). When moved, the protrusion (13d) engages with the notch (19a), and the contact portion (13e) provided below the protrusion (13d) contacts the contacted portion (19). And the locking plate (8) is rotated.

According to this embodiment, since the projection (13d) is deeply engaged with the notch (19a), it is possible to reliably prevent the back lever (13) from rattling in the front-rear direction.

FIG. 8 shows a third embodiment of the present invention.
This embodiment uses a locking plate on the sub-lever (13).
A projection (13f) projecting toward the contacted part (20) of (8) and a hole (20a) into which the projection (13f) is inserted into the contacted part (20) are provided, respectively. Sub lever (13) open direction (arrow direction)
When the protrusion (13f) moves, the protrusion (13f) loosely fits into the hole (20a), and the contact portion (13g) provided above the protrusion (13f) contacts the contacted portion (20). , Locking plate (8)
Is rotated.

According to this embodiment, the protrusion (13f) is
0), it is possible to prevent rattling of the sub-lever (13) in the vertical direction and the front-back direction.

[0033]

According to the present invention, the following effects can be obtained. (A) According to the first aspect of the present invention, rattling of the operating lever when rotating the rotating member can be prevented by the preventing means. As a result, the operating force of the operating lever can be reliably transmitted to the rotating member.

Further, by preventing rattling of the operating lever, an excessive force is not applied to the shaft supporting the operating lever and the vicinity thereof, so that the operating lever can be made of resin, and the operating lever and the locking device can be made. The overall weight can be reduced.

(B) According to the second aspect of the present invention, since the abutting portion of the operating lever directly engages with the concave portion, a projection or the like for preventing rattling of the operating lever is formed on the operating lever. Since there is no need to perform this operation, the size of the operating lever can be reduced.

(C) According to the third aspect of the present invention, since the projection of the operating lever is deeply engaged with the notch, the rattling of the operating lever can be reliably prevented.

(D) According to the fourth aspect of the invention, since the projection of the operating lever is inserted into the hole, it is possible to prevent rattling in any direction perpendicular to the moving direction of the operating lever.

(E) According to the invention of claim 5, since the locking plate can be surely turned to the release position, the latch of the lock device can be released smoothly and reliably.

[Brief description of the drawings]

FIG. 1 is a front view of a lock device according to an embodiment of the present invention.

FIG. 2 is a view taken in the direction of the arrow II in FIG.

FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1, showing a cover plate and a base plate removed.

FIG. 4 shows a state in which a cover plate is similarly attached.
FIG. 4 is a vertical sectional view taken along line IV-IV in FIG.

FIG. 5 is a plan view of a main part, similarly illustrating an operation state of a sub-lever and a locking plate.

FIG. 6 is a perspective view of a main part, similarly.

FIG. 7 is a perspective view of a main part showing a second embodiment of the present invention.

FIG. 8 is a perspective view of a main part showing a third embodiment of the present invention.

FIG. 9 is a plan view of a main part for explaining the operation of the conventional technique.

[Explanation of symbols]

 (A) Locking device (S) Striker (1) Housing (1a) Flange (2) Housing (3) Flat (supporting surface) (4) Striker entry groove (5) Shaft (6) Latch (rotating member) (6a) Engagement groove (6b) (6c) Claw (7) Shaft (8) Locking plate (rotating member) (8a) Engagement part (9) Cover plate (10) Spring (11) Abutted Part (11a) Recess (blocking means) (12) Spring (13) Sub-lever (operating lever) (13a) (13e) (13g) Contact part (13b) Slot (13c) Shaft (13d) (13f) (14) Base plate (other supporting surface) (15) Shaft (16) Wire (17) Open lever (17a) Arm (18) Locking / unlocking lever (18a) Projection (19) (20) Contact part (19a) Notch (blocking means) (20a) Hole (blocking means)

Claims (5)

[Claims] A rotating member rotatable along a supporting surface of the housing; and an operating lever movable along another supporting surface intersecting with the supporting surface, wherein the operating lever is moved by moving the operating lever. In the lever operating force transmission structure of the lock device in which the contact portion of the operating lever comes into contact with the rotating member and the rotating member is rotated in a predetermined direction, A lever operating force transmission structure in a lock device, further comprising a blocking unit that can be engaged with the operating lever in a direction substantially orthogonal to the other support surface. 2. A lever operating force transmitting structure in a lock device according to claim 1, wherein the blocking means is formed as a concave portion which opens toward the contact portion of the operating lever and engages with the contact portion. 3. A lever operating force transmitting structure in a lock device according to claim 1, wherein said blocking means is a notch with which a projection provided on said operating lever engages. 4. A lever operating force transmitting structure in a lock device according to claim 1, wherein said blocking means is a hole into which a projection provided on said operating lever is inserted. 5. A locking member for preventing rotation of a latch that can be engaged with and disengaged from a striker, wherein the rotation member is moved from an engagement position where the locking plate is engaged with the latch by movement of an operating lever. The lever operating force transmitting structure of the lock device according to any one of claims 1 to 4, wherein the lever operating force is rotated to a release position where the lever is released.