JPH083298B2 - Vehicle door lock device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle door locking device, and more particularly to a vehicle door locking device having a one-motion door opening mechanism and / or a keyless locking mechanism.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open No. 62-253886, which has been publicly known, includes a latch pivotally supported in a recess formed on the front side of a body and engaged with a striker on the vehicle body to rotate, and a latch associated with the latch. A ratchet for preventing the latch from rotating in reverse, an inner open lever and an outer open lever that are respectively axially fixed to the back side of the body, and the ratchet for engaging the latch with the inner open lever when the ratchet is moved downward. The inner link provided on the back side of the body that can release the engagement and the outer open lever are freely displaceable between a lock position and an unlock position, and when the ratchet moves downward in the unlock position, the engagement of the ratchet with respect to the latch. An outer link provided on the back side of the body that can release the engagement,
The inner open lever is connected to the outer link and includes a lock lever provided on the back side of the body, which is capable of displacing the outer link between a locked position and an unlocked position when the outer link is rotated. An inside lever (intermediate lever) for rotating the lever is engaged, and a connecting lever group including a pressing body and an intermediate link is provided between the inside lever and the lock lever, and the connecting link group is connected to the back plate. The structure in which the mounting bracket (upright wall) is fixed to the shaft is described.

[0003]

SUMMARY OF THE INVENTION In the known door lock device described above, a connecting lever group that pivotally displaces the lock lever to an unlock position when the inside lever is operated to open the door is provided on the rising wall of the back plate. There is a problem in that it is stopped. That is, since it is a structure in which a large number of lever groups are attached to the back plate attached to the back side of the lock device, it is disadvantageous in that the man-hour and the lock device at the time of factory assembly become large. However, if the lever group is pivotally supported on the back side of the body of the lock device in a small gap between the back plate and the body, the problems of man-hours and size of the lock device at the time of factory assembly can be solved.

[0004]

Accordingly, the present invention relates to a latch 4 which is pivotally supported in a recess 2 formed on the front side of a body 1 and which engages with a striker 3 on the vehicle body side, and a latch 4 and the latch 4. The ratchet 6 that prevents the latch 4 from rotating in the reverse direction, the inner open lever 16 and the outer open lever 29 that are axially fixed to the back side of the body 1, and the latch that is connected to the inner open lever 16 and moves downward. The inner link 19 provided on the back side of the body 1 for releasing the ratchet 6 engaged with the outer open lever 29 and the unlock position are freely displaceable between a lock position and an unlock position. The outer cover provided on the back side of the body 1 for releasing the ratchet 6 engaged with the latch 4 And the link 33, the outer link 33
The inner link 19 includes the lock lever 35 provided on the back side of the body 1, which is capable of displacing the outer link 33 between the locked position and the unlocked position when the inner link 19 is connected to the inner link 19. Is moved downward, the vehicle door lock device is provided with an engaging portion 24 that comes into contact with an arbitrary portion of the lock lever 35 and rotationally displaces the lock lever 35 to the unlock position, and the outer link 33 is provided with the vehicle door lock device. A vehicle door lock device having a key closing prevention projection 43 for preventing rotational displacement of the lock lever 35 to the lock position when the outer link 33 is in the non-downward moving state and the ratchet 6 is in the open state, and The outer link 33 and the inner link 19
The engaging portion 24 and the engaging portion 24 are assembled and arranged on the back side of the body 1,
The vehicle door lock device is a vehicle door lock device in which the back side thereof is surrounded by a back plate 46.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a synthetic resin body of a lock device, a recess 2 is formed on the front side of the lock device, and a latch 4 engaging with a striker 3 fixed to the vehicle body is provided in the recess 2 by a shaft 5 and also by a latch 5 of the latch 4. A ratchet 6 for preventing reverse rotation is housed rotatably by a shaft 7. A cover plate (not shown) that covers the recess 2 is fixed to the front side of the body 1. 8
Is a guide groove into which the striker 3 enters, 9 is a wedge,
Reference numeral 10 denotes a protrusion formed on the ratchet 6, which is projected to the back side of the body 1 through an arc hole 11 formed in the body 1. Reference numeral 12 is a plurality of through holes formed in the body 1 for fastening.

On the back side of the body 1, there is integrally formed a bulged portion 13 that is long in the left and right and bulges in the back side direction. The bulge 1
Reference numeral 3 indicates a U-shaped vertical section, and the inner side thereof serves as the guide groove 8. A shaft cylinder 14 for mounting the shaft 5 is integrally formed at a position above the bulging portion 13 of the body 1, and a shaft cylinder 15 for mounting the shaft 7 is integrally formed at a lower position. An inner open lever 16 is rotatably fitted on the outer circumference of the shaft cylinder 14. An engaging piece 17 is formed at one end of the inner open lever 16. An inner handle of the door is indirectly connected (engaged) to the engagement piece 17. A mounting hole 18 is formed at the other end of the inner open lever 16, and the upper end of the inner link 19 is pin 2 in the mounting hole 18.
The axis is stopped by 0. Reference numeral 21 is an engagement protrusion that engages with an outer lever described later.

As shown in FIG. 3, the inner link 19 is
Forms a window hole 22 at the lower end thereof so as to hang downward on the lateral side of the bulging portion 13 so as not to overlap with the bulging portion 13.
The projection 10 of the ratchet 6 faces the window hole 22. A projecting piece 23 and an engaging portion 24 for rotating a lock lever described later are formed near the window hole 22. One end of the spring 25 is locked to the projecting piece 23, the other end of the spring 25 is locked to the projection 26 of the body 1, and the inner link 19 is biased counterclockwise around the pin 20. The inner link 19 is stopped by the side end portion 27 at the lower end thereof coming into contact with the step portion 28 formed on the body 1. Step 2
8 extends in a substantially vertical direction. In FIG. 3, the solid line projection 10 is in the closed position and the dotted line projection 10 is in the open position. When the inner open lever 16 is rotated in the closed state, the inner link 19 moves downward and the projection 22 is opened by the window hole 22. Press to rotate the ratchet 6 and open the door.

Reference numeral 29 is an outer open lever, which is rotatably fitted to the outer periphery of the barrel 14 so as to overlap with the inner open lever 16. The outer open lever 29 is biased in the clockwise direction by the spring 30, and the inner open lever 16 engaged with the outer open lever 29 via the engagement protrusion 21 is also biased in the clockwise direction. Outer open lever 29
An arc hole 31 is formed at one end of the rod, and a rod (not shown) reaching the outer handle is connected to the arc hole 31. The upper end of the outer link 33 is loosely fitted in the mounting hole 32 of the outer open lever 29 by a pin 34. The outer link 33 is provided so as to overlap with the back side of the inner link 19.

A lock position (fifth position) is provided on the outer circumference of the shaft cylinder 15.
(Fig.) And the unlock position (Fig. 4), the boss portion 44 of the lock lever 35, which is rotationally displaced, is rotatably fitted. The lock lever 35 is formed in the shape of three legs, the key cylinder side of the door is connected to the first leg portion 36, the sill knob side is connected to the second leg portion 37, and the intermediate portion is connected to the third leg portion 38. One end 40 of the link 39 is rotatably fixed to the shaft. The lock lever 35 is held at either the locked position or the unlocked position by an over-center spring or the like (not shown). At the other end 41 of the intermediate link 39, the outer link 3
Axes the lower end of 3.

As shown in FIG. 4 and FIG. 5, when the lock lever 35 is rotated to the lock position or the unlock position in the door closed state, the outer link 33 pivots around the pin 34, It moves to the unlocked position shown in FIG. 4 or the locked position shown in FIG. 5, respectively. The outer link 33 has the protrusion 1 when it is in the unlocked position.
There is provided a contact portion 42 which is opposed to 0 but which is not opposed at the lock position. Reference numeral 43 denotes a key closing prevention protrusion formed on the outer link 33, and when the ratchet 6 is at the door opening position (when the protrusion 10 is at the position shown by the dotted line in FIG. 3), the outer lever is operated only by the lock lever 35. When the link 33 is to be displaced, the key closing prevention protrusion 43 comes into contact with the protrusion 10 of the ratchet 6 to prevent the outer link 33 from being displaced. Therefore, in the door open state, to switch to the lock position, operate the inner open lever 16 or the outer open lever 29,
The outer link 33 is moved downward (FIG. 9), and the lock closing lever 35 is rotated while removing the key closing prevention protrusion 43 from the protrusion 10.

A cam surface 45 that engages with the engaging portion 24 of the inner link 19 is formed on the outer periphery of the front side of the boss portion 44 of the lock lever 35. Engaging portion 24 and cam surface 4
5 is a non-acting state when the inner open lever 16 is inactive and the inner link 19 is moving upward, but as shown in FIG. 7, when the inner open lever 16 is operated in the locked state, When the inner link 19 moves downward, the engaging portion 24 comes into contact with the cam surface 45 and rotates the lock lever 35 counterclockwise to switch to the unlocked state.

A back plate 4 is provided on the back surface of the body 1.
Fix 6 An intermediate lever 48, which connects the inner open lever 16 and the inner handle of the door, is axially fixed to the rising wall 47 of the back plate 46. When the back plate 46 is fixed to the back surface of the body 1, as shown in FIGS.
A space 49 surrounded by the body 1 and the back plate 46 is located above, a space 50 surrounded by the body 1 and the back plate 46 is located below the bulging portion 13, and a body 50 is located on a side portion of the bulging portion 13. A space 51 surrounded by 1 and the back plate 46 is formed. Outer link 2
9 and the inner link 19 are located in the space 51.

[0013]

When the door is closed, the striker 3 fixed to the vehicle body enters the guide groove 8 and engages with the latch 4. When the latch 4 rotates to the lock position, the ratchet 6 engages with the latch 4. The reverse rotation of the latch 4 is prevented and the door is closed (FIGS. 1 and 4). When the lock lever 35 is rotated clockwise by the key or the sill knob in the state shown in FIG. 4, the intermediate link 39 is moved leftward in the figure, and the outer link 33 is rotated clockwise about the pin 34, and the locked state shown in FIG. Therefore, even if the outer link 33 is moved downward, the abutting portion 42 and the protrusion 10 do not engage with each other, so that the ratchet 6 does not move and does not move and the door is not opened.

In the state shown in FIG. 5, when the inner handle of the door is operated to rotate the inner open lever 16,
The inner link 19 moves downward along the step 28, the engaging portion 24 contacts the cam surface 45 of the lock lever 35 to rotate the lock lever 35 counterclockwise, and the window hole 22 moves the projection 10 downward. And rotate ratchet 6. Therefore, switching the lock state and ratchet 6 with a single operation.
The door can be opened by opening (one-motion door opening mechanism).

However, in the opened state, the projection 10 of the ratchet 6 is positioned downward as shown in FIG. 3, and therefore, when the lock lever 35 alone is rotated to switch the locked state, the outer link 33 is rotated. Since the key closing prevention projection 43 of the above contacts the projection 10, the lock state cannot be switched as it is. Therefore, the inner open lever 16 or the outer open lever 29 is rotated to move the outer link 33 connected to the outer open lever 29 downward, and the key closing prevention protrusion 43 is removed from the protrusion 10 (Fig. 9). In this state, when the lock lever 35 is rotated to the lock position and the door is closed, the door is closed in the locked state (keyless lock mechanism).

In the keyless lock, when the lock lever 35 is rotated while operating the inner open lever 16, the cam surface 45 of the lock lever 35 comes into contact with the engaging portion 24 of the inner link 19 which is moving downward. However, at this time, the inner link 19 rotates around the pin 20 against the elastic force of the spring 25 and does not move upward. In the above, since the lever group necessary for the one-motion lock release and the mechanism keyless lock mechanism is attached to the body 1 side, the back plate can be configured without attaching many parts, and the lock is remarkably excellent in assemblability and size. It becomes a device.

According to the present invention, the latch 4 pivotally supported in the recess 2 formed on the front side of the body 1 and engaged with the striker 3 on the vehicle body side to rotate, and the latch 4 engaged with the latch 4. 4, a ratchet 6 for preventing reverse rotation, an inner open lever 16 and an outer open lever 29 that are respectively axially fixed to the back side of the body 1, and are engaged with the latch 4 when the inner open lever 16 is connected to move downward. The inner link 19 provided on the back side of the body 1 for releasing the ratchet 6 in the combined state and the outer open lever 29 are connected to each other so that the ratchet 6 is freely displaceable between a lock position and an unlock position and is moved downward at the unlock position. The ratchet 6 engaged with the latch 4
And an outer link 33 provided on the back side of the body 1 for releasing the body, and a back side of the body 1 which is connected to the outer link 33 and can displace the outer link 33 between a locked position and an unlocked position. And a lock lever 35 provided on the inner link 19. When the inner link 19 moves downward, the inner link 19 comes into contact with an arbitrary portion of the lock lever 35 to pivotally displace the lock lever 35 to an unlock position. Since the vehicle door lock device is provided with the joint portion 24, even if the back plate 46 is not provided with the connecting lever group, when the inner link 19 connected to the inner open lever 16 is moved downward, the inner link 19 is engaged. The portion 24 abuts on an arbitrary portion of the lock lever 35 to rotationally displace the lock lever 35 to the unlock position. Since bets can, there is an effect that can reduce the structure as compared with the known examples can be expected a similar effect.
In addition, the outer link 33 has the outer link 3
3 is a non-lowering state and the ratchet 6 is in the open state, the vehicle door lock device is provided with the key closing prevention projection 43 for preventing the rotational displacement of the lock lever 35 to the lock position. Can be easily added. Further, since the outer link 33, the inner link 19 and the engaging portion 24 thereof are assembled and arranged on the back side of the body 1, and the back side is surrounded by the back plate 46, the vehicle door lock device is provided. In addition, a lock device excellent in the size of the lock device can be obtained.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a locking device.

FIG. 2 is an exploded view of the lock device.

FIG. 3 is a rear view in which the inner open lever and the inner link are attached to the body.

FIG. 4 is a rear view of the locking device when unlocked with the back plate removed.

FIG. 5 is a rear view of the lock device when the back plate is removed and the lock device is locked.

FIG. 6 is a front view of a lock lever.

FIG. 7 is a rear view of the main part.

FIG. 8 is a perspective view of a back plate.

FIG. 9 is an operation explanatory view.

FIG. 10 is a vertical sectional side view of the body.

FIG. 11 is a cross-sectional plan view of the body.

[Explanation of symbols]

1 ... Body, 2 ... Recess, 3 ... Striker, 4 ... Latch,
5 ... Shaft, 6 ... Ratchet, 7 ... Shaft, 8 ... Guide groove, 9 ... Wedge, 10 ... Protrusion, 11 ... Arc hole, 12 ... Through hole, 13
... bulging portion, 14 ... shaft cylinder, 15 ... shaft cylinder, 16 ... inner open lever, 17 ... engaging piece, 18 ... mounting hole, 19 ... inner link, 20 ... pin, 21 ... engaging projection, 22 ... window Hole, 23 ... Projection piece, 24 ... Engagement portion, 25 ... Spring, 26 ... Projection, 27 ... Side end portion, 28 ... Step portion, 29 ... Outer open lever, 30 ... Spring, 31 ... Arc hole, 32 ... Mounting Hole, 33 ... Outer link, 34 ... Pin, 35 ... Lock lever, 36 ... First leg, 37 ... Second leg, 38 ... Third
Legs, 39 ... Intermediate link, 40 ... One end, 41 ... Other end, 4
2 ... Abutting portion, 43 ... Key closing prevention protrusion, 44 ... Boss portion, 45 ... Lock lever cam surface, 46 ... Back plate, 47 ... Standing wall, 48 ... Intermediate lever, 49-51 ... Space.

Claims (3)

[Claims] 1. A latch 4 pivotally supported in a recess 2 formed on the front side of a body 1 and engaged with a striker 3 on the vehicle body side to rotate, and a latch 4 engaged with the latch 4 to reverse the rotation of the latch 4. The ratchet 6 for preventing, the inner open lever 16 and the outer open lever 29 which are respectively axially fixed to the back side of the body 1, and the latch 4 connected to the inner open lever 16 and engaged with the latch 4 when moved downward. The body 1 for releasing the ratchet 6
The inner link 19 provided on the back side of the ratchet 6 is freely displaceable between a lock position and an unlock position by being connected to the outer open lever 29, and when the ratchet 6 is engaged with the latch 4 when moved downward in the unlock position. An outer link 33 provided on the back side of the body 1 for releasing
It is composed of a lock lever 35 provided on the back side of the body 1 which is connected to the outer link 33 and is capable of displacing the outer link 33 between a locked position and an unlocked position when the outer link 33 is rotated. A vehicle door lock device provided with an engagement portion 24 for abutting against an arbitrary portion of the lock lever 35 to pivotally displace the lock lever 35 to an unlock position when the inner link 19 moves downward. 2. The outer link 33 according to claim 1, wherein when the outer link 33 is in a non-downward moving state and the ratchet 6 is in a door open state, rotational displacement of the lock lever 35 to a locked position is prevented. A vehicle door lock device in which a key closing prevention protrusion 43 is formed. 3. The outer link 33, the inner link 19 and the engaging portion 24 thereof according to claim 1.
Is a vehicle door lock device that is mounted on the back side of the body 1 and is surrounded by a back plate 46.