JPH0960381A - Car lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance car security against theft in simple structure by laying out an actuator on the lower side of a bulged area into which a striker intrudes and providing a sub-plate which covers this actuator. SOLUTION: When a car is key-operated and locked during parking time, if someone tries to break mischievously a lock device 1 by inserting some tool from outside a door, an actuator 23 is substantially covered with a back plate and a sub-plate 52, which does not allow the access of other tools except for only part of an open lever 30 and part of a key lever 35, the tip of the other end of a ratchet lever 24 and an inner lever 46. Even when the open lever is turned with some tool, it will be impossible to unlock in a locked state. Even if the key lever is turned with the tool, nothing but for a key lever will be operable even if the key lever is turned. Even if the ratchet lever or the inner lever is forced to turn with the tool, the tool may be guided to the projection in a riser area of the back plate and a rib so that it may be escaped. Even if the ratchet or a ratchet lever is turned with the tool from outside. It will be impossible to push downward or turn, since their upper part and the outside area are surrounded with the wall.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle lock device.

[0002]

2. Description of the Related Art When a vehicle such as an automobile is parked, the door is closed and locked by a key operation. However, a member (lock lever) that locks is inserted by inserting an instrument through a gap between the door and the window glass. There was an accident in which the door was opened by pushing or pulling with a device to operate the lock lever to the unlocked position, then operating the handle. Therefore, various means for preventing the lock lever from being operated by an instrument have been conventionally proposed. For example, cover the lock lever (Actual No. 62-131567), cover the entire actuating mechanism located on the back side of the lock device with a protective cover (Actual No. 1-94564), lock the lock lever on the key side. It is divided into two pieces, the lever and the knob side lock lever, and the key side lock lever is immovable except for key operation (Japanese Patent Publication No. 55-5).
No. 0155), the lock lever is housed in the recess of the resin body (JP-A-4-293876).

[0003]

Although there has been a strong demand for improvement of the anti-theft property, conventionally, a lock lever for switching between an unlock position where the handle can be unlocked and a lock position where the handle cannot be unlocked. It was designed to prevent it from being actuated by instruments that have been penetrated from the outside.
However, a ratchet that holds the latch that engages with the striker attached to the vehicle body side at the engaged position or a part of the ratchet lever that rotates integrally with the ratchet may be exposed on the outer surface of the locking device, and thus may be exposed. Anti-theft measures for ratchets or ratchet levers are required.

[0004] In Japanese Utility Model Laid-Open No. 1-94564, which is conventionally known, since the entire operating mechanism is covered with a protective cover, the anti-theft property can be satisfied even when applied to a lock device with a one-motion mechanism, but the protective cover itself is large. However, it is expensive and requires various measures for assembling the lock device. In Japanese Patent Laid-Open No. 4-293876, a part of the actuating mechanism is housed in the recess of the resin body. However, since various members of the actuating mechanism are housed in the recess of the resin body, the arrangement, shape, Size limitations can make it difficult to achieve an optimal design. For example, when the shape of the rotating lever is small, the rotation of the lever becomes jerky, and the feeling is deteriorated. In addition, when the vehicle is driven, the pressure of the outdoor becomes lower than that of the indoor due to the flow of air, so that the window glass is taken to the outside of the room (so-called sucking phenomenon) especially at high speed running. SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned drawbacks, improve the anti-theft property of a lock device with a simple structure, and prevent the sucking phenomenon.

[0005]

Therefore, according to the present invention, a latch housed in a recess of a resin body and engaged with a striker mounted on the vehicle body side, and a full lock engagement step portion of the latch are engaged, In a vehicle locking device including a ratchet that holds a latch in a full lock position and an operating portion provided on the back side of the resin body, the operating portion is below a bulging portion of the resin body into which the striker enters. And a sub-plate that substantially covers the operation portion is provided in the vehicle lock device.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described with reference to the drawings. 1 is a lock device attached to a door, 3 is a resin body, and 4 is provided on a resin body 3 into which a striker 2 attached to the vehicle body enters. It is a bulge. Reference numeral 7 is a back plate, 16 is a cover plate, and 17 is a latch pivotally supported by a shaft 19 and engaged with the striker 2. Reference numeral 20 denotes a ratchet, which is rotatably supported by the shaft 22 and engages with the full-lock engagement step portion 18 of the latch 17 to hold the latch 17 in the full-lock position. The latch 17 and the ratchet 20 are arranged in the front concave portion 5 of the resin body 3. The operation part 23 is arranged below the bulging part 4 on the back side of the resin body 3, and 24 is a ratchet lever, which is supported on the back side of the back plate 7 by the ratchet 20 and is pivotally supported by the shaft 22. The boss portion 21 of the ratchet 20 engages with the hole 26 provided in the
It rotates integrally with the ratchet 20.

The open lever 30 is pivotally supported by the shaft 22,
The one end portion 31 is connected to an outer handle (not shown) via a rod. Reference numeral 6 denotes a wall provided on the resin body 3, which surrounds the upper portion of the one end 25 of the ratchet lever 24 and the outside of the vehicle, and has a height which is substantially in contact with the front side surface of the one end 31 of the open lever 30.

The lock lever 34 comprises a key lever 35 and a knob lever 37. The key lever 35 is pivotally supported on the back side of the back plate 7 and the knob lever 37 is pivotally supported on the front side 39. The key lever 35 is connected to a key cylinder (not shown) via a rod, and is rotated by a key operation to take a lock position and an unlock position. The key cylinder returns to the neutral position when the key cylinder is locked or unlocked and then released.
Use something that cannot be rotated except for key operation. Therefore, the key lever 35 is normally in the neutral position (FIG. 3). The knob lever 37 is rotated by the operation of a knob provided in a room (not shown) to take a lock position (FIG. 6) and an unlock position (FIG. 3). The key lever 35 and the knob lever 37 are engaged with each other with play provided by the protrusion 36 of the key lever 35 and the engagement groove 38 of the knob lever 37. When the key lever 35 is rotated to the locked or unlocked position, the knob lever 37 is also locked or locked. Although it rotates following the unlocked position, the key lever 35 remains held at the neutral position even when the knob lever 37 is rotated to the locked or unlocked position.

One end 41 of the link 40 has a knob lever 37.
The pin 43 of the other end 42 is slidably fitted in the long hole 33 of the other end 32 of the open lever 30, and the pin 43 is used when the knob lever 37 is in the unlock position. It can be engaged with the engaging portion 28 of 24 and cannot be engaged in the locked position. When the ratchet lever 24 rotates in the unlocking direction (counterclockwise direction in FIG. 3), the projection 44 provided on the other end 42 of the link 40 rotates the ratchet lever 24.
The abutting portion 27 of the one end portion 25 of the abutting portion abuts on the abutting portion 27 to move the link 40 in the unlocking direction.

An inner lever 46 is pivotally supported 51 on the outdoor side surface 9 of the rising portion 8 of the back plate 7, one end portion 47 is connected to an inner handle (not shown) through a rod, and an end portion 48 is a ratchet lever. 24 end 2
9 is adapted to be engaged. Ratchet lever 24
The other end portion 29 of the back plate 7 projects slightly toward the indoor side from the indoor side surface 10 of the rising portion 8 of the back plate 7 so that the other end portion 48 of the inner lever 46 does not disengage when the inner lever 46 is rotated. To

Indoor side surface 1 of the rising portion 8 of the back plate 7
0 is provided with a protrusion 11 which is arranged immediately below the other end 29 of the ratchet lever 24 when the ratchet lever 24 is in the non-rotating state.
The height is set so that 2 is slightly inside the tip of the other end 29 of the ratchet lever 24. Note that the protruding portion 11 is the other end portion 29 of the ratchet lever 24 as shown in FIGS.
The bulging portion 53 may cover the entire range of rotation of the.

The outdoor side surface 9 of the rising portion 8 of the back plate 7.
The rib 13 is provided on the shaft 13, and the rib 13 supports the shaft support portion 5 of the inner lever 46 when the inner lever 46 is in the non-rotating position.
It is formed on the lower side of the outer shape portion 49 in the range from 1 to the other end portion 48, and has a height such that the top portion 14 of the rib 13 is slightly outside the outdoor side surface 50 of the inner lever 46.
Bend the lower end of the back plate 7 toward the interior and
Is provided, and the wall 15 has a height that encloses the knob lever 37. Reference numeral 52 denotes a sub plate, which is fixed to the shafts 22 and 39, and at least the other end portion 3 of the open lever 30.
2, and the ratchet lever 24, the link 40, and the knob lever 37 have a shape that substantially covers a portion exposed from the back plate 7. The wall 15 provided on the back plate 7 may be provided on the sub plate 52. Note that 54
Indicates a door panel to which the locking device is attached, 55
Indicates the trajectory of the window glass.

Next, the operation will be described. When the door is closed, the respective levers are in the state shown in FIG. 3. When the outer handle is unlocked, the open lever 30 rotates counterclockwise, and the engaging portion 2 of the ratchet lever 24 is rotated through the pin 43 of the link 40.
8 is pressed, the ratchet lever 24 is rotated counterclockwise, and the ratchet 20 that rotates integrally with the ratchet lever 24 is rotated to unlock. When the inner handle is unlocked, the inner lever 46 rotates counterclockwise in FIG. 2, the other end portion 48 of the inner lever 46 pushes the other end portion 29 of the ratchet lever 24, and the ratchet lever 24 is reversed in FIG. Rotate clockwise to unlock.

When the door is closed and locked with a knob or key, the state shown in FIG. 6 is reached. Even if the outer handle is unlocked, the pin 43 of the link 40 does not engage with the engaging portion 28 of the ratchet lever 24, so that the ratchet lever 24 is locked. It does not rotate and cannot be unlocked. At this time, when the inner handle is unlocked, the other end 48 of the inner lever 46 pushes the other end 29 of the ratchet lever 24 to unlock it, and at the same time, the contact portion 27 of the one end 25 of the ratchet lever 24 is unlocked.
Pushes the protrusion 44 of the link 40 to move the link 40 downward to the unlock position. That is, the knob lever 37 is unlocked by operating the inner handle and the knob lever 37 is displaced from the locked position to the unlocked position.

When the vehicle is parked and locked by a key operation, the state shown in FIG. 6 is obtained. At this time, even if the device is inserted from the outside of the door and the lock device 1 is tampered with, the operating portion 23 is almost covered with the back plate 7 and the sub-plate 52, and the device can access only a part of the open lever 30. , Only part of the key lever 35, the tip of the other end 29 of the ratchet lever 24, and the inner lever 46.
Even if the open lever 30 is rotated by the device, it cannot be unlocked in the locked state, and even if the key lever 35 is rotated, the key lever 35 does not rotate except for the key operation. Even if the device tries to rotate the ratchet lever 24 or the inner lever 46, the device does not rotate the back plate 7
7 is guided by the protrusion 11 of the rising portion 8 and the rib 13 and escapes in the P and Q directions of FIG. 7, and the ratchet lever 24 and the inner lever 46 cannot be rotated. In addition, the ratchet 20 can be installed by an instrument inserted from the outside of the door.
Or even if you try to rotate the ratchet lever 24,
Since the upper portion of the ratchet 20 or the ratchet lever 24 and the outer side of the vehicle are surrounded by the wall, they cannot be pressed downward and cannot be rotated.

[0016]

In the lock device, the anti-theft property can be remarkably improved by a simple structure without providing a special protective cover, and the arrangement, shape and size of each lever of the operating portion can be designed with a degree of freedom. Since the thickness of the lock device is not increased, it can be applied to doors of any vehicle type.
Further, since the operating portion is provided below the bulging portion of the resin body for entering the striker, the thickness on the upper side of the bulging portion becomes small, and even if the locking device is mounted on the upper side of the door, it abuts on the window glass. There is no such thing. By arranging the lock device on the upper side of the door, the phenomenon of sucking out the window glass can be suppressed.

[Brief description of drawings]

FIG. 1 is a front view of a lock device.

FIG. 2 is a side view of the locking device.

FIG. 3 is a rear view of the lock device in an unlocked state.

FIG. 4 is a sectional view taken along line AA in FIG.

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

FIG. 6 is a relationship diagram of a locked state.

FIG. 7 is an explanatory diagram of a protrusion and a rib.

FIG. 8 is a rear view of the ratchet lever.

FIG. 9 is a rear view of the open lever.

FIG. 10 is a rear view of the key lever.

FIG. 11 is a rear view of the knob lever.

[Figure 12] Rear view of the link

FIG. 13 is a rear view of the back plate.

FIG. 14 is a rear view of the sub lever.

FIG. 15 is a rear view of another embodiment.

FIG. 16 is a side view of another embodiment.

[Explanation of symbols]

1 ... Lock device, 2 ... Striker, 3 ... Resin body,
4 ... bulging part, 5 ... concave part, 6 ... wall, 7 ... back plate,
8 ... Upright part, 9 ... Outdoor side surface, 10 ... Indoor side surface, 11 ... Projection part, 12 ... Top part, 13 ... Rib, 14 ... Top part, 15 ...
Wall, 16 ... Cover plate, 17 ... Latch, 18 ... Full lock engagement step, 19 ... Shaft, 20 ... Ratchet, 21 ...
Boss portion, 22 ... Shaft, 23 ... Operating portion, 24 ... Ratchet lever, 25 ... End portion, 26 ... Hole, 27 ... Abutting portion, 28 ... Engaging portion, 29 ... End portion, 30 ... Open lever, 31 ... edge,
32 ... End, 33 ... Long hole, 34 ... Lock lever, 35 ...
Key lever, 36 ... Projection part, 37 ... Knob lever, 38 ... Engagement groove, 39 ... Shaft, 40 ... Link, 41 ... End part, 42 ... End part, 43 ... Pin, 44 ... Projection part, 45 ... Shaft, 46 ... Inner lever, 47 ... end portion, 48 ... end portion, 49 ... outer shape portion, 5
0 ... outside surface, 51 ... shaft, 52 ... sub-plate, 53 ...
Bulging portion, 54 ... Door panel, 55 ... Trajectory of window glass.

Claims (3)

[Claims] 1. A latch that is housed in a recess of a resin body and that meshes with a striker that is mounted on the vehicle body side; and a ratchet that engages with a full-lock engagement step of the latch and holds the latch in a full-lock position. In a vehicle lock device including an operating portion provided on the back side of the resin body, the operating portion is disposed below a bulging portion of the resin body into which the striker enters, and a sub-portion that substantially covers the operating portion. A vehicle locking device provided with a plate. 2. The back side of the resin body of claim 1, wherein a wall that is continuous from the bulged portion of the resin body is formed, and the ratchet or the ratchet lever that rotates integrally with the ratchet is integrally formed with the wall. A vehicle locking device that surrounds the upper part of the more protruding portion and the outside of the vehicle. 3. The operating unit according to claim 1, wherein the operation section is an open lever that is rotated in an unlocking direction by a handle operation, a key lever that is switched to a lock or unlock position by a key operation, and a lock or unlock position by a knob operation. A knob lever that switches, and a link that is axially supported by the knob lever and is disengaged or engaged with the ratchet lever when the knob lever takes a locked or unlocked position; and the sub-plate is at least the ratchet lever and the knob lever, A vehicle locking device having a shape that substantially covers the link.