JP2535061Y2 - Door lock device for automobile - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to an improvement of an automobile door lock device.

(Prior Art) Conventionally, as a door lock device for an automobile, a latch for locking and unlocking a striker, a claw lever for locking the latch in a lock position, and an open for operating the claw lever in a non-lock position There has been proposed a lever provided with a lever, an outer lever for operating the open lever, an inner lever interlocking with the inner handle, and a push lever for operating the outer lever (Japanese Utility Model Publication Nos. 55-49403 and 55-49403). 58-35813).

The door lock device is provided with a child lock for preventing the door lock from being unlocked when a child accidentally pulls the inner handle of the door.

(Problems to be Solved by the Invention) The conventional child lock requires components such as a child lever, a spring for a child lever, a shaft for attaching a child lever, a pin, and a washer. There is a problem that it is complicated and the assembly is poor.

The present invention has been made to solve the above-described problem, and has as its object to reduce the number of parts of a child lock and improve assemblability in the above-described vehicle door lock device.

Therefore, the present invention provides a latch for locking and unlocking a striker, a claw lever for locking the latch in a locked position, and an open for operating the claw lever in a non-locked position. In a vehicle door lock device including a lever, an outer lever for operating the open lever, an inner lever interlocking with the inner handle, and a push lever for operating the outer lever, the vehicle can be slid into the first long hole of the base. And a second clip slidably fastened to the second elongated hole of the base.
A synthetic resin child lever provided with a clip portion and a moderation portion for providing moderation; a first clip portion formed with a hand-operated portion projecting outward from the door inner panel; The engagement portion engages with the elongated hole of the push lever, is linked to the inner lever at the set position, and is not linked to the inner lever at the lock position. .

(Functions and effects of the invention) The invention is based on the first and second child levers made of synthetic resin.
Since the second clip part, detent part, manual operation part and engagement part are integrally molded, all the parts necessary to fulfill the function of the child lever can be integrated into the child lever, greatly reducing the number of parts In addition, the mechanism can be simplified.

Also, the child lever can be fastened simply by inserting the first and second clip portions into the base, so that the child lever can be assembled with one touch.

Furthermore, since the directions of the first and second long holes of the base can be set arbitrarily, the operation direction of the hand operation unit can be set arbitrarily, and the degree of freedom in design is improved.

Furthermore, since the child lever can be attached between the support point of the inner lever of the base and the set plate, the child lever can be downsized, and the door lock can be downsized.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 5 and 6, a door lock device for an automobile includes a claw lever 13 swingably supported by a craw lever shaft 12 between a set plate 10 and a fence block 11 made of synthetic resin. A fence block assembly A provided with an engagement mechanism such as a latch 15 rotatably supported by a latch shaft 14, and an open lever 17, an outer lever 17, and a base 16, as shown in FIGS. 1
8, a lock plate 19, a lock link 20, an inner lever 21, a push lever 22, a child lever 23, and a base assembly B provided with a lever mechanism are combined and assembled.

As shown in FIGS. 5 and 6, in the fence block assembly A, the latch 15 locks and unlocks the striker 9 (see FIG. 3) on the door side. , The latch 15 is locked at the half lock position and the lock position.

One end 14a of the latch shaft 14 of the latch 15 is supported by the set plate 10, and the other end 14b is connected to the base 16
And is supported by being inserted into the hole 16a drilled.

The claw lever shaft 12 of the claw lever 13 has an end portion 12a supported by the set plate 10, and another end portion 12b formed in a protruding portion 16b formed by protruding from the cut-and-raised portion 16e 'of the base 16. 16c is fitted and supported. The protrusion 16b is attached to the base 16 by the set plate 10
The other end 12 b of the claw lever shaft 12 is set to a length that does not protrude above the base 16.

The projecting portion 16b may be formed integrally with the base 16 by burring or embossing, or may be formed by fixing another member by press-fitting or welding.

If the fence block assembly A is configured as described above, the other end 12b of the claw lever shaft 12 supporting one end 12a on the set plate 10 projects from the base 16 toward the set plate 10 in the direction of the projection 16b. Since the other end portion 12b of the claw lever shaft 12 is extended by being inserted into and supported by the shaft hole 16c, there is no need to support the open lever 17 and the outer lever 18 with this extended portion, so that the outer lever shaft 27 ( (Described later) can be set to an arbitrary position of the base 16 offset from the shaft hole 16c.

Also, since the shaft hole 16c of the protruding portion 16b is long, the fitting margin of the other end portion 12b of the claw lever shaft 12 increases,
Can be strongly supported.

Further, since the other end portion 12b of the claw lever shaft 12 does not protrude above the base 16, the claw lever shaft 12
The other end 12b does not hinder the operation of the open lever 17.

As shown in FIGS. 1 to 4, in the base assembly B, the base 16 includes a flat base portion 16d fixed to the fence block 11 face to face, and one side end of the flat base portion 16d. And a rising base 16e that rises along the door inner panel 26.

The open lever 17 is connected to the claw lever shaft.
A central portion is swingably supported by a lower portion of an outer lever shaft 27 supported by a cut-and-raised portion 16r cut and raised from a flat base portion 16d relatively close to 12 (see FIG. 11).

In the first arm portion 17a of the open lever 17, there is formed a linking hole 17b which is implanted in the claw lever 13 and into which an open bush 28 penetrating the elongated hole 11a formed in the fence block 11 can be fitted. .

Thereby, the claw lever 13 on the fence block assembly A side and the open lever 17 on the base assembly B side can be linked only by fitting the open bush 28 into the linking hole 17b, and caulking work or the like is unnecessary. Therefore, the assemblability is improved.

The open lever 17 has a second arm extending downward.
17c, a bent portion 17d is provided at the lower end of the second arm portion 17c.
Are formed.

The open lever 17 is rotated leftward in FIG.
To the unlocked position, whereby the latch 15 returns to the unlocked position and the striker 9 is unlocked,
The door can be opened.

The center portion of the outer lever 18 is swingably supported by an upper portion of the outer lever shaft 27 via a bush 30 (see FIG. 11).

The first arm portion 18a of the outer lever 18 has a coil spring 3 having one end locked to a spring hook portion 16g of the base 16.
1 is locked at the other end, and by the coil spring 31,
The outer lever 18 is biased in the clockwise direction in FIG.

The first arm 18a of the outer lever 18 has the base 1
Rising part 18 rising parallel to rising base part 16e of 6
When the outer handle of the opened door abuts on the rising portion 18b from above (see the arrow a in FIG. 1), the outer lever 18 is turned leftward against the urging force of the coil spring 31. You.

The outer lever 18 is provided with a second arm portion 18c (see FIG. 8) extending toward the rising base portion 16e of the base 16, and a bent portion is provided on a side edge portion of the second arm portion 18c. 18d is formed.

Further, the outer lever 18 has a third
An arm portion 18e is provided, and the third arm portion 18e has a wide arc-shaped first arc having a radius centered on the outer lever shaft 27.
A groove 18f and a straight narrow second groove 18g extending downward from one end of the first groove 18f are formed.

The lock plate 19 is pivotally supported at its center by a lock plate shaft 33 inside the upper portion of the rising base 16e of the base 16.

An action spring 34 is locked between the first arm portion 19a of the lock plate 19 and the rising base portion 16e, and is unlocked by the action spring 34 at a dead point d (see FIG. 4). Direction (Left-turn ...
The switch is biased with moderation in the solid direction (see the solid line) and in the locking direction (right-handed rotation ... see the two-dot chain line).

When the lock plate 19 is in the unlocked position,
The bent portion 19e of 19b is stopped by the stop rubber 35 fixed to the rising base portion 16e, and the third arm portion 19 in the locked position.
The bent portion 19d of c is stopped by the stop rubber 35.

A rod 36 of an inner lock knob is connected to the second arm portion 19b of the lock plate 19, and the lock plate 19 is operated between the unlock position and the lock position via the rod 36 by the inner lock knob.

The lock plate 19 is provided with a third arm 19c (see FIG. 7) extending toward the flat base 16d of the base 16.

The lock link 20 extends inside the rising base 16e of the base 16 in parallel with the rising base 16e,
The one end 20a is rotatably fixed to the third arm 19c of the lock plate 19 by a first shaft clip 38.

The other end 20b of the lock link 20 is slidably fastened by a second shaft clip 39 to an elongated hole 16h formed in a rising base 16e of the base 16.

The first and second shaft clips 38 and 39 are of the same shape made of synthetic resin, respectively. As shown in FIG. 12, only the second shaft clip 39 is shown, and the head 39a and the outside of the head 39a are separated from each other. An elastic fin 39d protruding in the direction, a shaft 39b extending from the shaft 39a, and a claw 39c protruding outward from the shaft 39b.
It is composed of

Then, the second shaft clip 39 is connected to the rising base portion.
By pushing the shaft portion 39b from the long hole 16h side of the 16e into the clip hole of the other end portion 20b of the lock link 20 while bending the claw portion 39c, the claw portion 39c is locked to the hole edge of the other end portion. Lock link 2 due to the elastic force of the elastic fin 39d.
The lock link 20 slides in the long hole 16h while the backlash between 0 and the rising base 16e is loose.

Similarly, the first shaft clip 38 is
From the hole side of one end 20a of the third arm 19c of the lock plate 19
By pushing the shaft portion while bending the claw portion into the clip hole of the third arm portion 19c, the claw portion is locked by the hole edge of the third arm portion 19c and does not come out, and the elastic force of the elastic fin portion locks the lock plate.
There is play between 19 and lock link 20.

In this manner, the one end 20a of the lock link 20 and the third arm 19c of the lock plate 19 are rotatably fixed by the first shaft clip 38, and the other end 20b of the lock link 20 and the base 1 are fixed.
The lock link 20 can be fastened to the lock plate 19 and the base 16 with one touch from the side by swingably fastening the long hole 16h of the 6 with the second shaft clip 39, and the assembling property is improved. .

Note that a long hole may be formed in the other end portion 20b of the lock link 20, and a clip hole may be formed in the rising base portion 16e of the base 16.

The lock link 20 is slid downward in the unlock position of the lock plate 19 and upward in the lock position in conjunction with the lock plate 19.

The other end portion 20b of the lock link 20 is provided with a mounting portion 20c for a locking / unlocking actuator, and the actuator causes the lock link 20 to slide up and down, thereby moving the lock plate 19 to the unlock position and the lock position. And actuate (auto lock).

The lock link 20 is laterally parallel to the flat base 16 d of the base 16 so as to intervene between the third arm 18 e of the outer lever 18 and the second arm 17 c of the open lever 17. An extending interlocking arm portion 20d is provided, and the interlocking arm portion 20d is formed with an arc-shaped groove 20e having a radius centered on the outer lever shaft 27 at the unlock position.

A slide clip 43 is slidably engaged with the arc-shaped groove 20e.

As shown in FIG. 13, the slide clip 43 includes an upper shaft 43a, an elastic fin 43c projecting outward from a lower end of the upper shaft 43a, and a shaft 43d extending from the upper shaft 43a.
And a claw portion 43e protruding outward from the lower end of the shaft portion 43d,
The lower shaft 43b extends from the shaft portion 43d.

The slide clip 43 pushes the shaft 43d while bending the claw 43e into the arc-shaped groove 20e of the interlocking arm 20d of the lock link 20, so that the claw 43e is engaged with the hole edge of the arc-shaped groove 20e. The arc groove 20e is smoothly slid without stopping due to the elastic force of the elastic fin 43c.

The upper shaft 43a of the slide clip 43 is fitted into each of the grooves 18f, 18g of the third arm portion 18e of the outer lever 18, and the bent portion 17d of the open lever 17 is fitted to the lower shaft 43b from the clockwise direction. It comes into contact.

Then, at the unlock position of the lock link 20 (the solid line state in FIG. 1), the slide clip 43 is slid by the second groove 18g of the outer lever 18 to one end side of the arc-shaped groove 20e. The bent portion 17d of the open lever 17 contacts the lower shaft 43b of the rep 43.

Therefore, when the slide clip 43 is slid rightward in the arc-shaped groove 20e via the narrow second groove 18g and the upper shaft 43a by the left rotation of the outer lever 18, the open lever 17 is rotated left by the lower shaft 43b. Thus, the claw lever 13 is swung to the non-locking position.

At the lock position of the lock link 20 (see the two-dot chain line b in FIG. 1), the slide clip 43 is
Is moved to the confluence of the first groove 18f and the second groove 18g of the outer lever 18 by the arcuate groove 20e, and at this position, the bent portion 1 of the open lever 17 is attached to the lower shaft 43b of the slide clip 43.
7d does not touch.

Therefore, even if the outer lever 18 turns left, the upper shaft 43a of the slide clip 43 only fits loosely into the wide first groove 18a, so that the open lever 17 does not turn left and the outer lever 18 swings.

In this way, the shaft portion 43d at the center in the vertical direction of the slide clip 43 is supported by the clip engagement with the arc-shaped groove 20e of the lock link 20, the outer lever 18 is linked to the upper shaft 43a, and the lower shaft 43b When the open lever 17 is rocked by the outer lever 18 by linking the open lever 17 to the outer lever 18, the slide clip 43 is hardly twisted, so that the slide clip 43 smoothly slides through the arc-shaped groove 20e, and The linking operation of the open lever 17 becomes smooth.

The center of the inner lever 21 is swingably supported by the lower portion of the inner lever shaft 41 inside a protruding portion 16i protruding from a lower portion of the rising base 16e of the base 16.

A rod 42 of an inner handle is connected to the first arm portion 21a of the inner lever 21. The inner handle 21 allows the inner lever 21 to rotate clockwise in the direction of releasing the engagement between the latch 15 and the claw lever 13 via the rod 42. (FIG. 4).

The inner lever 21 has a second arm portion 21b curved downward.
Is provided.

The push lever 22 has one end 22a swingably supported by the upper part of the inner lever shaft 41, the other end 22b extending obliquely downward, and a tip 22c (FIG. 7, FIG.
8) comes into contact with the bent portion 18d of the second arm portion 18c of the outer lever 18 from below. The upper lever of the inner lever shaft 41 may support the inner lever 21, and the lower lever may support the push lever 22.

When the push lever 22 is turned clockwise in FIG. 4, the bent portion 18d of the outer lever 18 is pushed by the tip portion 22c, and the outer lever 18 is turned counterclockwise against the urging force of the coil spring 31. . Accordingly, the open lever 17 is turned left in FIG. 1, and the claw lever 13 is swung to the unlocked position.

The other end 22b of the push lever 22 has an oblique long hole 22d.
Are formed.

The synthetic resin child lever 23 is disposed on the door inner panel side of the inner lever shaft 41 of the inner lever 21 and outside the lower portion of the rising base 16e of the base 16.

As shown in FIGS. 7 and 9, the child lever 23 is slidably fitted to a first horizontal hole 16i formed in a rising base portion 16e of the base 16 in a fitted state. A clip portion 23a and a second clip portion 23b slidably fitted in the V-shaped second long hole 16k formed in the rising base portion 16e in a play-fit state are integrally formed.

As shown in detail in FIGS. 14 to 16, the first clip portion
The shaft 23a is provided with a shaft 23h fitted into the first slot 16i and claws 23c, 23c projecting outward from the shaft 23h.

On the surface of the child lever 23 opposite to the first clip portion 23a, a hand operation portion 23d projecting outward from the door inner panel 26 is integrally formed.

Second clip portion 23b, shaft portion loosely fitted in second long hole 16k
23i, and elastic fins 23j projecting outward from the shaft 23i.
And extending from the shaft portion 23i, the push lever 22
An engaging portion 23g that engages with the long hole 22d is provided.

The first clip portion 23a of the child lever 23 is provided with claw portions 23c, 23 from the outside of the rising base portion 16e in the first elongated hole 16i.
Press the shaft 23h while bending the c to
23c, 23c is locked by the hole edge of the first long hole 16i and cannot be removed.

The second clip portion 23b of the child lever 23 is connected to the second elongated hole 16k from the outside of the rising base portion 16e by an elastic fin.
By pushing the shaft portion 23i while bending the 23j, the elastic fin 23j is locked by the hole edge of the second elongated hole 16k and does not come off, and the second fin is not rattled by the elastic force of the elastic fin 23j. Slide the hole 16k smoothly.

The child lever 23 is integrally formed with a detent part 23e cut out so as to generate elasticity in the direction of the rising base part 16e, and as shown in FIG. 10, a hemispherical detent projection 23f is formed on the detent part 23e. Is formed.

On the outer surface of the rising base portion 16e, the first clip portion 23a of the child lever 23 is engaged with the moderation protrusion 23f at a set position on the left end side of the elongated hole 16i in FIG. 16l are formed.

When the child lever 23 is at the set position,
As shown in the figure, the second arm portion 21b of the inner lever 21 is provided.
Abuts on the engaging portion 22g of the second clip portion 23b.

Therefore, when the child lever 23 is at the set position and the inner lever 21 is turned clockwise as shown in FIG. 18, the second arm 21b is engaged with the engaging portion 23g of the child lever 23.
Is pushed upward, the child lever 23 is turned counterclockwise around the first clip portion 23a at the moderate setting position, and the push lever 22 is turned clockwise through the elongated hole 22d at the engagement portion 23g. , The outer lever 18 is turned to the left in FIG. At this time, the second clip part 23b operates to swing the second long hole 16k.

Next, as shown in FIG. 19, the child lever 23 is
When sliding to the right lock position with the hand operation part 23d,
The detent protrusion 23f rides over the detent protrusion 16l, and the engaging portion 23g of the second clip portion 23b is guided obliquely upward by the elongated hole 22d of the push lever 22 and moves.

Therefore, when the child lever 23 is at the lock position, as shown in FIG. 20, even if the inner lever 21 is turned clockwise, the second arm portion 21b is engaged with the engagement portion 23g of the second clip portion 23b.
Are not brought into contact with each other, so that the push lever 22 is not turned clockwise and the inner lever 21 swings idly.

As described above, the synthetic resin child lever 23
First and second clip portions 23a and 23b, moderation portion 23e, moderation protrusion 23
f, by integrally forming the manual operation part 23d, the engagement part 23g, and the like, all the parts necessary to fulfill the function of the child lever 23 can be integrated with the child lever 23, and the number of parts can be greatly reduced.

In addition, the child lever 23 is provided with first and second clip portions.
23a, 23b are elongated holes 16i, 16 of the rising base portion 16e of the base 16.
Since it can be fastened simply by inserting it into k, it can be assembled with one touch from the side of the rising base 16e of the base 16.

Furthermore, the first and second rising base portions 16e of the base 16
Since the directions of the long holes 16i and 16k can be set arbitrarily, the operation direction of the hand operation unit 23d can be set arbitrarily, and the degree of freedom in design is improved.

Furthermore, since the child lever 23 can be attached between the support point (inner lever shaft 41) of the inner lever 21 of the base 16 and the set plate 10,
The child lever 23 can be downsized, and the door lock can be downsized.

With the above configuration, when the inner handle is opened by the inner lock knob, the rod plate 19 is operated to the unlock position via the rod 36, and the child lever 23 is slid to the set position. Outer lever 18 is turned left and slide clip
The slide lever 43 is slid to the right in FIG. 1, the open lever 17 is turned leftward by the slide clip 43, the claw lever 13 is swung to the unlocked position, the latch 15 returns to the unlocked position, and the striker 9 is moved. Is unlocked and the door can be opened.

Similarly, when the inner lever is opened, the inner lever 21 is turned clockwise, the push lever 22 is turned clockwise through the engaging portion 23g of the second clip portion 23b of the child lever 23, and the push lever 22 is turned through the push lever 22. By turning the outer lever 18 counterclockwise, the striker 9 is unlocked and the door can be opened.

Next, when the lock plate 19 is moved to the lock position via the rod 36 by the inner lock knob, the lock link 20 is slid upward, so that the open lever 17 does not come into contact with the slide clip 43. Outer lever 18 by opening the handle
, The open lever 17 does not turn left, that is, the outer lever 18 swings idly.

On the other hand, when the child lever 23 is slid to the lock position while the lock plate 19 is in the unlock position, the second
Since the second arm portion 21b of the inner lever 21 does not come into contact with the engaging portion 23g of the clip portion 23b, even if the inner lever 21 turns clockwise by opening the inner handle, the push lever
Since 22 is not clockwise, striker 9 is not unlocked. That is, the inner lever 21 swings.

However, even if the child lever 23 is slid to the lock position, when the outer handle is opened, the outer lever 18 is turned leftward, so that the striker 9 is unlocked and the door can be opened as described above.

[Brief description of the drawings]

1 is a front view of the door lock device according to the present invention, FIG. 2 is a right side view of FIG. 1, FIG. 3 is a rear view of FIG. 1, FIG. 4 is a right side view of FIG. FIG. 5 is a rear view of the fence block assembly, FIG. 6 is a cross-sectional view of FIG. 5, FIG. 7 is an essential part extracted view of FIG. 4, FIG. 8 is an essential part extracted view of FIG. 9 is a sectional view of the child lever, FIG. 10 is a sectional view of a moderation portion of the child lever corresponding to line III-III in FIG. 2, and FIG.
FIG. 12 is a cross-sectional view showing a linkage structure between a claw lever, an open lever push, and an open lever, FIG. 12 is a cross-sectional side view of a main part of a shaft clip, FIG. 13 is a cross-sectional side view of a main part of a slide clip, and FIG. Front view of child lever,
FIG. 15 is a sectional view taken along line II of FIG. 14, and FIG. 16 is a sectional view taken along line II of FIG.
FIG. 17 is a sectional view taken along the line II, and FIGS. 17, 18, 19 and 20 are front views showing the operating relationship among the child lever, the inner lever and the push lever. A: Fence block assembly B: Base assembly
10 …… Set plate, 11 …… Fence block, 12…
… Claw lever shaft, 13 …… Claw lever, 14 ……
Latch shaft, 15 …… Latch, 16 …… Base, 17 ……
Open lever, 18 ... Outer lever, 19 ... Lock plate, 20 ... Lock link, 21 ... Inner lever, 22 ... Push lever, 23 ... Child lever,
26: Door inner panel, 27: Outer lever shaft, 38, 39: Shaft clip, 43: Slide clip.

Claims (1)

(57) [Scope of request for utility model registration] A latch for locking and unlocking a striker, a claw lever for locking the latch in a locked position, an open lever for operating the claw lever to a non-locked position, and an outer for operating the open lever A lever and an inner lever linked to the inner handle,
An automobile door lock device comprising a push lever for operating the outer lever, wherein the first clip portion is slidably fastened to the first elongated hole of the base, and slidably fastened to the second elongated hole of the base. A synthetic resin child lever having a second clip portion to be attached and a moderation portion for imparting moderation is provided, and a manual operation portion projecting outward from the door inner panel is formed at the first clip portion. The second clip portion has an engagement portion that engages with the elongated hole of the push lever, is linked to the inner lever at the set position, and is not linked to the inner lever at the lock position. A door lock device for an automobile characterized by the above-mentioned.