JP3875472B2 - Child lock mechanism in door lock device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a child lock mechanism in a door lock device that enables or disables the operation of an inside handle provided inside a door of a door in an automobile.
[0002]
[Prior art]
The child lock mechanism in the conventional door lock device has an operation lever on an inside lever that is pivotally attached to a lock body that is fixed to the door and is rotated by an inside handle provided inside the door. A child lever that protrudes to the outside through a panel hole drilled in the door panel is mounted so as to be movable between a child unlock position and a child lock position, and the child lever is set to a child unlock position. Thus, the lock release by turning the inside handle is possible, and the child lever is set to the child lock position so that the lock release by turning the inside handle is disabled (for example, Patent No. 2895722).
[0003]
[Problems to be solved by the invention]
However, in the child lock mechanism in the conventional door lock device described above, when the child lever is in the unlocked position, when the inside lever is rotated, the child lever is rotated accordingly, and the operation unit moves greatly. For this reason, the panel hole must be large enough to allow movement of the operation unit.
[0004]
SUMMARY OF THE INVENTION The present invention provides a child lock mechanism in a door lock device in which a panel lever can be made smaller by reducing the amount of movement of a child lever operation portion in view of the above-described problems of the prior art. It is an object.
[0005]
[Means for Solving the Problems]
According to the present invention, the above problem is solved as follows.
(1) A panel hole that is pivotally attached to a lock body that is fixed to the door and is turned by an operation of an inside handle provided on the inside of the door. the child lever so as to project to the outside through the, attached as movable in the child unlock position and the child lock position, by the child lever to the child unlock position, rotation of the inside handle by due to allow unlocking and to the child lever and the child lock position, the child lock mechanism in the inside handle door lock apparatus adapted to disabled unlocking by pivoting of the inside lever The rotating shaft for pivotal support The long holes formed in Rudoreba, One move slidably rotatably fitted, as well as to be linearly displaceable between the child unlock position said child lever and the child lock position, the child lever, when in one of the positions of the child lock position and the child unlock position, to match the axis of the rotary shaft and the operation unit.
[0006]
(2) In the above item (1), the child lever is slidably engaged with the arm of the inside lever so that it can be linearly displaced between the child lock position and the child unlock position .
[0007]
(3) In the above item (2), the base part provided with the long hole of the child lever is slidably sandwiched between the inside lever and the base plate of the lock body, and the operation part is directed toward the panel hole side. Provided at the end of the arm protruding in a crank shape.
[0008]
(4) In the above item (2) or (3), a check portion is provided on the side edge of the long hole to elastically engage the rotating shaft of the inside lever and to hold the child lever in each position.
[0009]
(5) In any one of the above items (1) to (4), the operation unit is formed in a columnar shape.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, the left side in FIG. 1 is “vehicle inside”, the right side is “vehicle outside”, the left side in FIG. 2 is “front”, and the right side is “rear”.
[0011]
(1) is a lock body fixed to a side panel in a door of a vehicle with a plurality of bolts (not shown). A striker fixed inside the vehicle body as the door opens and closes as a meshing mechanism. (Not shown) and a latch (not shown) that can be engaged and disengaged, and an engaging member (not shown) that prevents the latch from rotating by engaging with the latch and restrains the door in the closed position. Each is accommodated in a rotatable manner.
[0012]
A base piece (2a) of a metal base plate (2) is fixed to the front surface of the lock body (1), and an engagement member and a base piece (2a), as shown mainly in FIG. An open lever (3) that can rotate integrally, a locking / unlocking lever (4) and a sub-lever (5) that can be moved to two positions described later, and an outside handle (illustrated) provided on the side of the door outside the vehicle And an outside lever (6) connected to (omitted).
[0013]
In this embodiment, the open lever (3), the sub lever (5), and the outside lever (6) form an open mechanism that releases the meshing state of the door and the vehicle body. This open mechanism can be appropriately changed depending on the configuration of the door lock device.
[0014]
The side piece (2b), which is bent at a right angle from the side end of the base piece (2a), is connected to an inside handle (not shown) provided on the inside of the door to operate the inside handle. A child lock mechanism (7) displaceable between a child unlock position to be enabled and a child lock position to be disabled is provided.
[0015]
The locking / unlocking lever (4) is pivotally attached to the base piece (2a) of the base plate (2) with a shaft (4a) in the front-rear direction, and is provided on the outer side of the door. It is connected to a lock knob provided on the inside of the vehicle via an appropriate lever, and can be rotated to two positions: a locked position shown in FIG. 1 and an unlocked position rotated by a predetermined amount counterclockwise from the locked position. At the same time, the pressure is held at each position.
[0016]
The sub-lever (5) is supported by a vertically elongated slot (5a) provided in the upper portion so as to engage with a protrusion (4b) provided in the locking / unlocking lever (4) so as to be slidable in the vertical direction. The lower part is pivotally attached to the outside lever (6) with a longitudinal axis (5b).
[0017]
As the sub-lever (5) is moved to each position of the locking / unlocking lever (4), the release portion (5c) provided at the center thereof is connected to the open lever (3) as shown in FIG. It is possible to move to a locking position that cannot be engaged with the joint portion (3a) and a unlocking position that can be rotated clockwise from the locking position and engageable with the engaging portion (3a). .
[0018]
The outside lever (6) is pivotally attached to the lower portion of the base (2a) of the base plate (2) with a longitudinal axis (6a), and a connecting portion (6b) provided at the right end is connected to a wire (not shown). ) Is connected to an outside handle (not shown) provided on the side surface of the door outside the vehicle. When the outside handle is operated, the outside lever (6) rotates in the opening direction (counterclockwise in FIG. 1), and moves the sub lever (5) downward.
[0019]
When the sub lever (5) is in the unlocked position, when the sub lever (5) is moved downward by the rotation of the outside lever (6) in the opening direction, the release portion (5c) is moved to the open lever (3). The door can be opened by engaging the engaging portion (3a) and rotating the engaging member in the opening direction via the open lever (3). Further, when the sub lever (5) is in the locked position, even if the outside handle is operated and the sub lever (5) moves downward, the release portion (5c) is swung to the engaging portion (3a), The door cannot be opened.
[0020]
The child lock mechanism (7) is pivotally attached to the side piece (2b) of the base plate (2) with a left / right shaft (8) and connected to the inside handle via a wire (not shown) (9). And a child lever (10) mounted on the inside lever (9) and movable to a child lock position shown in FIG. 2 and a child unlock position shown in FIG.
[0021]
As shown mainly in FIG. 10, the inside lever (9) is substantially L-shaped and extends downward to connect the wire (9a) and the arm ( 9b) and rotates in the open direction (clockwise in FIG. 2) by operating the inside handle.
[0022]
The plate-like base portion (11) of the child lever (10) is formed between the inside lever (9) and one side surface of the side piece (2b) of the base plate (2) as shown mainly in FIGS. The base (11) is slidably interposed. The base (11) has a substantially horizontal slot (12) in which the shaft (8) is slidably and rotatably engaged. Similarly, the right end is an inside lever ( Support portions (13) each having a support hole (13a) with which the arm (9b) of 9) is slidably engaged are provided.
[0023]
The child lever (10) can move linearly between the child lock position and the child unlock position by engaging the long hole (12) with the shaft (8) and the support hole (13a) with the arm (9b). In addition, it can be rotated together with the inside lever (9).
[0024]
Only when the door is opened through the base part (11) of the child lever (10) through the release part (14) extending to the right and the panel hole (B) provided in the door panel (A). An operation portion (15) protruding from the end face of the operable door is provided.
[0025]
The release portion (14) moves so as to advance and retreat in the direction of the arm (9b) of the inside lever (9), and when the child lever (10) is in the child unlock position shown in FIG. 9), it is engaged with the engaging portion (6c) provided at the inner end of the outside lever (6) as shown in FIG. When the child lever is in the child lock position shown in FIG. 6, even if it is rotated in the open direction together with the inside lever (9), it is disengaged from the engaging portion (6c) of the outside lever (6) as shown in FIG. .
[0026]
The base (11) further includes a crank-shaped arm (16) that protrudes through the hole (2c) provided in the side piece (2b) of the base plate (2) to the other side of the base plate (2). It is provided to do. An operation portion (15) is formed at the tip of the arm (16).
[0027]
The operation part (15) has a cylindrical shape, is fitted into the panel hole (B) of the door panel (A), protrudes to the outside of the door, and the center of the child lever (10) when the child lever (10) is in the child lock position. When the axis coincides with the axis of the axis (8) which is the rotation axis of the inside lever (9) and is in the child unlock position, only the operation stroke between the positions of the child lever (10) is as shown in FIG. Displace to the right of the axis (8).
[0028]
An elastically deformable check portion that elastically engages the shaft (8) engaged with the long hole (12) and elastically holds the child lever (10) at each position at the lower edge of the long hole (12). (12a) is provided.
[0029]
As shown in FIG. 2, when the child lever (10) is in the child lock position, even if the inside lever (9) and the child lever (10) are rotated in the open direction by operating the inside handle, the release portion Since (14) is not engaged with the engaging portion (6c) of the outside lever (6) as shown in FIG. 6, the outside lever (6) cannot be rotated in the open direction. Therefore, the operation of the inside handle becomes invalid and the door cannot be opened.
[0030]
At this time, the operating portion (15) coincides with the axis of the shaft (8) of the inside lever (9) and is coaxial with the shaft (8) as the child lever (10) rotates in the opening direction. The position does not change because it rotates.
[0031]
When the child lever (10) is moved to the child unlock position as shown in FIG. 7 by operating the child lever (10) operation portion (15), the operation portion (15) is moved to the axis (8). Displaced to the right, the release portion (14) protrudes so as to be able to engage with the engaging portion (6c) of the outside lever (6).
[0032]
In this state, when the inside lever (9) and the child lever (10) are rotated in the open direction by operating the inside handle, the release portion (14) of the child lever (10) is moved out as shown in FIG. The outside lever (6) is rotated in the open direction by engaging with the engaging portion (6c) of the side lever (6). At this time, if the sub lever (5) is in the unlocking position, the door can be opened by rotating the open lever (3) in the opening direction via the sub lever (5).
[0033]
The operation unit (15) moves clockwise about the shaft (8) as the child lever (10) rotates. At this time, the operation unit (15) moves in a circular motion around the axis (8).
[0034]
The panel hole (B) of the door panel (A) is formed in accordance with the movement of the operation unit (15). That is, as shown in FIG. 11, the panel hole (B) includes a straight line portion (B1) corresponding to the operation stroke between the positions of the child lever (10) and a straight line portion corresponding to the operation stroke in the open direction ( It is formed by a short arc part (B2) continuous from the right end of B1).
[0035]
In addition, this invention is not limited to the said embodiment. For example, in the above embodiment, when the child lever (10) is in the child lock position, the operation portion (15) is made to coincide with the center of rotation of the inside lever (9), but instead, the child lever ( When 10) is in the child unlock position, the operating portion (15) may be aligned with the center of rotation of the inside lever (9).
[0036]
【The invention's effect】
According to the present invention, the following effects can be achieved.
(A) According to the first aspect of the present invention , the child lever is child-locked by fitting the elongated hole provided in the child lever to the rotating shaft for pivotally supporting the inside lever so as to be slidable and rotatable. Between the position and the child unlock position, and when the child lever is at either the child unlock position or the child lock position, By aligning the axis, when the child lever is rotated in the open direction when it is in one of the positions, the position of the operation unit does not change only by rotating.
[0037]
In addition, in the other position, the operation unit moves in a circular arc at a position very close to the center of rotation due to the rotation of the child lever in the opening direction, so that the movement amount of the operation unit can be extremely small. it can. Therefore, the panel hole of the door into which the operation unit is inserted can be reduced, and the appearance can be improved.
[0038]
(B) According to the invention described in claim 2, the child lever can be accurately guided to each position with a simple configuration.
[0039]
(C) According to the third aspect of the present invention, the child lever can be reliably and stably supported, and the operating portion and the rotation axis of the inside lever can be made to coincide with each other with a simple configuration.
[0040]
(D) According to the invention of claim 4, the child lever can be held at each position without increasing the number of components and in a small space.
[0041]
(E) According to the invention described in claim 5, when the operation portion rotates on the rotation axis of the inside lever, the child lever operates smoothly by preventing interference between the outer peripheral surface of the operation portion and the inner edge of the panel hole. can do.
[Brief description of the drawings]
FIG. 1 is a front view of a door lock device including an embodiment of the present invention.
2 is a view taken along arrow II in FIG.
3 is a view taken along arrow III in FIG.
4 is a cross-sectional plan view taken along line IV-IV in FIG.
5 is a longitudinal side view taken along line VV in FIG.
FIG. 6 is also an operation diagram of a child lock state in the child lock mechanism.
FIG. 7 is also a child unlocking state diagram in the child lock mechanism.
FIG. 8 is also an operation diagram of a child unlocked state in the child lock mechanism.
FIG. 9 is a front view of the child lever.
FIG. 10 is a front view of the inside lever, similarly;
11 is a longitudinal side view taken along line XI-XI in FIG.
[Explanation of symbols]
(1) Lock body
(2) Base plate
(2a) Base piece
(2b) Side piece
(2c) hole
(3) Open lever
(3a) Engagement part
(4) Locking / unlocking lever
(4a) shaft
(4b) Projection
(5) Sub lever
(5a) Long hole
(5b) axis
(5c) Release part
(6) Outside lever
(6a) shaft
(6b) Connecting part
(6c) Engagement part
(7) Child lock mechanism
(8) Axis
(9) Inside lever
(9a) Connecting part
(9b) Arm
(10) Child lever
(11) Base
(12) Long hole
(12a) Check section
(13) Support part
(13a) Support hole
(14) Release part
(15) Operation unit
(16) Arm
(A) Door panel (inner panel)
(B) Panel hole

Claims (5)

An inside lever that is pivotally attached to the lock main body fixed to the door and can be turned by operating an inside handle provided on the inside of the door passes through a panel hole formed in the door panel. the child lever so as to project to the outside, is mounted as a movable into a child unlock position and the child lock position, by the child lever to the child unlock position, lock release by rotation of the inside handle by possible and then, and for the child lever and the child lock position, the child lock mechanism in the inside handle door lock apparatus adapted to disabled unlocking by rotation of,
A long hole provided in the child lever is slidably and rotatably fitted to a rotating shaft for pivotally supporting the inside lever, and the child lever is moved to the child lock position and the child unlock position. thereby to be linearly displaceable between the child lever, when in one of the positions of the child lock position and the child unlock position, the axis of the rotary shaft and the operating portion The child lock mechanism in the door lock device characterized by matching . The child lock mechanism in the door lock device according to claim 1, wherein the child lever is slidably engaged with an arm of the inside lever so that the child lever can be linearly displaced between the child lock position and the child unlock position . The base of the long lever of the child lever is slidably sandwiched between the inside lever and the base plate of the lock body, and the operating part is attached to the end of the arm that protrudes in a crank shape toward the panel hole. The child lock mechanism in the door lock device according to claim 2 provided. The child lock mechanism in the door lock device according to claim 2 or 3, wherein a check portion is provided at a side edge of the long hole to elastically engage with a rotation shaft of the inside lever and to hold the child lever in each position. The child lock mechanism of the door lock device according to any one of claims 1 to 4, wherein the operation portion has a cylindrical shape.

Images