JPH06212847A - Automatic door locking device for car - Google Patents

Abstract

PURPOSE:To make an automatic door locking device compact and smoothly transfer the power. CONSTITUTION:An automatic door locking device for a car is constituted of a latch 6, a ratchet 11 for preventing the inversion of the latch 6, an actuator 25 operating in the case the latch 6 is rotated up to a half latch position, a fan-like lever 38 rotated by the actuator 25 and an interlocking lever 28 rotated by the fan type lever 38 and capable of rotating the latch 6 in the half latch position to a full latch position. The interlocking lever 28, latch 6 and ratchet 11 are pivoted in a recession 5 of a lock body 3 in a rotatable manner, and the fan type lever 38 is mounted to the outside of the rear of the lock body 3 in a rotatable manner. The interlocking lever 28, latch 6, ratchet 11 and fan-like lever 38 are pivoted on a parallel shaft with each other.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, when a door is in a half-latched state (so-called a half-door) due to incomplete door closing operation, the latch is forcibly rotated to the full-latch position by the power of a motor or the like to completely An automatic door lock device for closing the door is known from Japanese Patent Laid-Open No. 2-200982.

[0003]

In the above-mentioned known example, the power transmission mechanism for transmitting the power of the motor to the latch is concentrated on the rising wall bent rearward at a right angle of the back plate fixed to the back side of the lock body. Since it is attached to the main body, this portion largely protrudes rearward, which is an obstacle to miniaturization. Further, since the rotation axis of the power transmission mechanism (corresponding to the left-right direction of the vehicle) is orthogonal to the rotation axis of the latch (corresponding to the front-rear direction of the vehicle), the power transmission is twisted. However, it is inconvenient as a power transmission mechanism of an automatic door lock device that transmits a large force.

[0004]

SUMMARY OF THE INVENTION The above problems can be overcome by providing a power transmission mechanism on the back side of a lock body, thereby obtaining a small automatic door lock device capable of smooth power transmission. You can

[0005]

Therefore, according to the present invention, the lock body 3 having the concave portion 5 on the front side and fixed to the door A side is provided.
A striker 2 fixed to the vehicle body B side; a latch 6 engaged with the striker 2 to rotate from an open position to a half latch position to a full latch position;
Ratchet 11 that engages with and prevents the reverse rotation of the latch 6.
When the latch 6 rotates to the half-latch position, the actuator 25 is energized to operate, the fan-shaped lever 38 rotated by the operation of the actuator 25, and the fan-shaped lever 38 rotates to the half-latch position. There is an interlocking lever 28 capable of rotating the certain latch 6 to the full latch position, and the interlocking lever 28, the latch 6 and the ratchet 11 are rotatably axially fixed in the recess 5, and the fan-shaped lever 38. Is a vehicle automatic door lock device rotatably attached to the outside of the rear surface of the lock body 3, and the interlocking lever 28, the latch 6, the ratchet 11, and the fan-shaped lever 38 are locked by mutually parallel shafts. This is an automatic door lock device for a vehicle.

[0006]

An embodiment of the present invention will be described with reference to the drawings.
The door lock device of the present invention includes a lock body 1 attached to the door A side and a striker 2 attached to the vehicle body B side. Reference numeral 3 denotes a synthetic resin lock body of the lock body 1, and a concave portion 5 closed by a metal cover plate 4 (see FIG. 12) is formed on the front side (front side) of the lock body 3.

A latch 6 which engages with the striker 2 and rotates is axially fixed by a latch shaft 7 at a substantially intermediate position above and below the recess 5. The latch 6 has an open position in FIG. 2, a half latch position in FIG. 3, and a full latch position in FIG.

A small projection 8 is provided on the back side of the latch 6, and the projection 8 is made to face a substantially arcuate groove 9 centered on the latch shaft 7 formed in the lock body 3.
A spring 10 for pressing the protrusion 8 to urge the latch 6 in the clockwise direction in FIG. 2 is housed in the arc-shaped groove 9.

A ratchet 11 is rotatably mounted in the recess 5 below the latch 6 by a ratchet shaft 12 parallel to the latch shaft 7. Ratchet 11
Is urged by a spring (not shown) so as to be elastically attached to the latch 6, and the claw 13 of the ratchet 11 causes the half engagement stepped portion 14 of the latch 6 when the latch 6 rotates to the half latch position in FIG. When it reaches the full latch position in FIG. 4, it engages with the full engagement stepped portion 15 of the latch 6 to prevent the latch 6 from rotating in the reverse direction. Ratchet 11
A protrusion 17 is provided at the tip of the lock body 3 so as to project to the back side through an elongated hole 16 provided in the lock body 3. The protrusion 17
Moves downward by opening the open lever 51, which will be described later, whereby the ratchet 11 is disengaged from the engagement with the latch 6. Reference numeral 18 is an engagement groove with which the striker 2 is engaged.

As shown in FIG. 3, the latch 6 is integrally formed with an engaging leg portion 19 which projects substantially upward when rotated to the half-latch position. Beside the latch 6, a half-latch switch 20 that is turned on when the latch 6 in the open position is rotated to the half-latch position.
And a full-latch switch 21 which is turned on when rotated to the full-latch position. Full latch switch 21
The operating piece 22 is directly pressed by the latch 6, while the operating piece 24 of the half-latch switch 20 is indirectly pressed by the rotor 23 that contacts the latch 6 and rotates. . These switches 20, 21
Is as described in the extraction block diagram in the lower part of FIG.
The actuator 25 is connected to the control circuit 26 of the actuator 25. The control circuit 26 activates the actuator 25 when the half latch switch 20 is turned on, and the full latch switch 21 is activated.
Is turned on, the actuator 25 is stopped.

An interlocking lever 28 fixed to a rotating shaft 27 parallel to the latch shaft 7 is disposed in the recess 5 above the latch 6. Rotation shaft 27 of interlocking lever 28
Is a power transmission mechanism 2 which will be described later on the actuator 25.
When the actuator 25 is connected via 9 and the actuator 25 is energized, the interlocking lever 28 rotates clockwise in FIG.

A slight gap is provided between the interlocking lever 28 and the latch 6, and the slide member 30 is positioned in the gap. As shown in FIGS. 5 and 12, the slide member 30 has two plates 31 on the front and back,
The slide member 30 is arranged with a gap 32 in between, and the base side of the slide member 30 is brought into contact with the front and back of the tip of the interlocking lever 28 to be locked by the shaft 33. A roller 35 is rotatably supported by a guide pin 34 in a gap 32 on the front end side of the slide member 30.

One end of the guide pin 34 has a twelfth end.
As shown in the figure, the slide member 30 is made to project to the back side for a long time, and the projecting portion is loosely faced in the guide groove 36 formed in the lock body 3. The guide groove 36 has a second shape
Explaining in the figure, the left part thereof is a substantially arc-shaped groove 36a centered on the latch shaft 7, and the right part thereof is a substantially arc-shaped withdrawal groove 36b centered on the rotation shaft 27. The withdrawal groove 36b does not have to be a circular arc groove, in short, the circular arc groove 36a should be separated from the latch shaft 7.
Any shape may be used as long as it extends from the right end to the upper right side.

The latch 6 is in the half latch position (third position).
Rotation), the interlocking lever 28 is rotated by the actuator 25 energized by the half-latch switch 20, the roller 35 of the slide member 30 moves from the right side to the left side along the guide groove 36, and the right end of the arc groove 36a. Roller 35 abuts on the engaging leg portion 19 of the latch 6,
After that, press the latch 6 to the full latch position (Fig. 4).
Forcibly move to. However, as shown in FIG. 2, in the retracted state in which the roller 35 is located on the retracting groove 36b side, the roller 35 is separated from the rotation locus of the engaging leg portion 19 of the latch 6, and the latch 6 and the roller 35 are separated. Does not engage.

A back plate 37 is fixed to the back side of the lock body 3 (FIG. 12), and the rear end of the rotating shaft 27 penetrates the back plate 37 and is projected rearward. The base of the fan-shaped lever 38 is loosely fitted in the protruding portion of the rotating shaft 27 so that the rotating shaft 27 does not rotate even if the fan-shaped lever 38 rotates. In this embodiment, the fan-shaped lever 38 is
As shown in FIG. 12, the one in which two metal plates are bonded together is used. A U-shaped guide groove 40 is formed around the outer peripheral edge 39 of the fan-shaped lever 38, and the head 44 of the wire 43 is locked to the engaging portion 42 on one end side 41 (FIG. 11) of the guide groove 40. Let After winding the guide groove 40, the wire 43 extends downward from the other end side 45 and is connected to the actuator 25. The fan-shaped lever 38 is biased in the clockwise direction in FIG. 6 by a spring (not shown). The fan-shaped lever 38 has a circular arc hole 46 centered on the rotary shaft 27 (FIG. 9) and a radial hole 47 (FIG. 9) extending from the other end side 45 of the circular arc hole 46 toward the rotary shaft 27. 10) and the substantially L-shaped hole 48 is formed.

A turning lever 49 (FIG. 9) is fixed to the rearward projecting portion of the turning shaft 27. The rotation lever 49 is formed with an elongated hole 50 that overlaps with the radiation hole 47.

An open lever 51 is provided at a position below the rotary shaft 27 of the lock body 3 and an open lever shaft 52.
To stop the shaft (Fig. 9). The open lever 51 has a left arm 53 and a right arm 54 extending from the open lever shaft 52 to the left and right, and an intermediate arm 55 extending to a position overlapping the rotating shaft 27. Door A on the left arm 53
The rod 57 (FIG. 6) reaching the outer open handle 56 of the right arm 5 is connected through lost motion.
The one end 58 (FIG. 6) of the inner lever is exposed to 4.
The inner lever is rotatably supported by a rising wall 59 formed by bending the back plate 37 at a right angle, and is rotated by operating an inner open handle 60 of the door A. Reference numeral 61 is a spring that biases the open lever 51 in the clockwise direction.

A base of a movable rod 63 is rotatably attached to the intermediate arm 55 by a shaft 62. A pin 64 protruding to the front side is formed on the movable rod 63, and the pin 64 is formed in the L-shaped hole 48 of the fan-shaped lever 38 and the long hole 5 of the rotary lever 49.
It is inserted through 0 (FIG. 12).

When the open lever 51 is not operated to open the door, the shaft center of the shaft 62 is as shown in FIG.
Of the L-shaped hole 48.
Located in the radiation hole 47 of When the actuator 25 is operated while the open lever 51 is not being operated to open the door, the wire 43 is wound and the fan-shaped lever 38 rotates counterclockwise, and at this time, the pin 64 causes the fan-shaped lever 38 to emit the radiation hole 47. Since it is engaged with the long hole 50 of the turning lever 49,
The rotary lever 49 also rotates in conjunction with the fan-shaped lever 38, and rotates the interlocking lever 28 via the rotary shaft 27 fixed to the rotary lever 49 (FIG. 7).

The shaft 62 is disengaged from the axis of the rotating shaft 27 when the open handles 56 and 60 inside and outside the door A are operated to rotate the open lever 51. FIG. 7 corresponds to the half-latch position of FIG. 3, and FIG. 8 corresponds to the full-latch position of FIG. 4, respectively.
When the open lever 51 is rotated counterclockwise in the state in which 8 is rotated to the positions shown in FIGS. 7 to 8, the shaft center of the shaft 62 is moved away from the shaft center of the rotating shaft 27, and the pin 64 is the fan-shaped lever. Three
8 to the position facing the arc hole 46 (FIG. 9). As a result, the engagement between the pin 64 and the fan-shaped lever 38 is released, and the rotational force of the fan-shaped lever 38 is changed to the rotation lever 4.
9 is not transmitted, and thereafter, only the fan-shaped lever 38 rotates, and the rotating lever 49 and the interlocking lever 28 do not rotate (FIG. 10).

Left arm 53 of the open lever 51
The upper end of the vertical link 66 is fixed to the tip end of the vertical link 66 by the shaft 65, and a vertical long hole 67 is formed at the lower end of the vertical link 66, and the projection 69 of the lock lever 68 is engaged with the long hole 67. Let The lock lever 68 is locked by the lock lever shaft 70 at a position below the lock body 3. Lock lever 6
One end side 71 of 8 is connected to the key cylinder side (not shown) via lost motion, and the other end side 72 is connected to the sill knob side (not shown).

The lock lever 68 is displaced between a lock position and an unlock position by operating a key cylinder or a sill knob. FIG. 6 shows the unlocked position,
The contact piece 73 of the vertical link 66 faces the projection 17 of the ratchet 11, and when the open lever 51 is rotated counterclockwise, the vertical link 66 moves downward and the contact piece 73 presses the projection 17 of the ratchet 11. And latch the ratchet 11 6
The door can be opened by opening the door. However, when the lock lever 68 is rotated clockwise around the lock lever shaft 70 from the position shown in FIG. 6 by the key cylinder operation or the sill knob operation to switch to the lock position, the vertical link 66 causes the lock lever 68 to move.
8 engages with the projection 69 to rotate counterclockwise about the shaft 65, the abutting piece 73 of the vertical link 66 shifts to the right from the projection 17 of the ratchet 11, and even if the open lever 51 is operated to open the door. The contact piece 73 does not engage with the protrusion 17 and cannot open the door.

[0023]

In the open state shown in FIGS. 2 and 6, when the door A is closed gently without applying much force, the striker 2 provided on the vehicle body B side slowly engages the latch 6 on the door A side. Engage with the groove 18 and rotate the latch 6 to the half-latch position. Then, the contact with the latch 6 causes the rotor 23 to rotate and press the operating piece 24, so that the half latch switch 20
Is turned on, whereby the actuator 25 is actuated to wind the wire 43, and the fan-shaped lever 38 is rotated counterclockwise in FIG.

When the fan-shaped lever 38 rotates, the pin 6 is inserted into the radiation hole 47 of the fan-shaped lever 38 and the elongated hole 50 of the rotating lever 49.
Since 4 is engaged, the rotating lever 49 also rotates in conjunction with it, and the interlocking lever 28 also rotates clockwise in FIG. 2 via the rotating shaft 27 fixed to the rotating lever 49. As a result, the roller 35 of the slide member 30 moves from the right side to the left side along the guide groove 36, and the arc groove 36 of the guide groove 36.
When it reaches the right end of a, the latch 6 in the half latch position
Abutting on the engaging leg portion 19 (see FIGS. 3 and 7).

When the actuator 25 further rotates and the fan-shaped lever 38 moves to the operation end position shown in FIG. 8, the roller 35 of the slide member 30 is guided by the arc groove 36a,
The latch 6 is rotated to the full-latch position shown in FIG. 4 without being disengaged from the engaging leg portion 19, and the pawl 13 of the ratchet 11 is engaged with the full-engaging step portion 15 of the latch 6 to complete the closing of the door.

When the latch 6 reaches the full-latch position, the operating piece 22 of the full-latch switch 21 is pressed by the latch 6 to be turned on, whereby the energization of the actuator 25 is stopped and the fan-shaped lever 38 at the operation end position is spring-loaded. It is returned to the standby position shown in FIG. 6 again by the elasticity (not shown).

During the above series of operations, the door A is closed.
When an unexpected situation occurs such as when your hand is caught in your hand, it is necessary to immediately stop the forced door closing by the actuator 25. In the present invention, as a countermeasure against this, when the open handles 56 and 60 inside and outside the door are operated, the actuator 2
The power transmission mechanism 29 from 5 to the interlocking lever 28 can be cut off, and the door A can be opened. This will be described in detail below.

As described above, when the latch 6 is in the half-latched position and the actuator 25 is in operation, the outer open handle 56 or the inner open handle 60 of the door is operated to rotate the open lever 51. As shown in FIG. 7, the shaft 62, which was located on the same axis as the rotary shaft 27, is displaced as shown in FIG. 9, and the pin 64 of the moving rod 63 is moved from the radial hole 47 of the fan-shaped lever 38. It moves to a position facing the arc hole 46. As a result, the engagement between the pin 64 and the fan-shaped lever 38 is released, and even if the fan-shaped lever 38 rotates, the pin 64 only moves within the arc hole 46.
The rotational force of the fan-shaped lever 38 is not transmitted to the pin 64. Therefore, thereafter, only the fan-shaped lever 38 rotates, and the rotating lever 49 and the interlocking lever 28 do not rotate (tenth position).
Figure). At the same time, when the open lever 51 rotates, the vertical link 66 connected by the shaft 65 moves downward, and the contact piece 73 pushes down the protrusion 17 of the ratchet 11, so that the pawl 13 of the ratchet 11 latches. 6 is separated from the half engagement stepped portion 14, the latch 6 is free, and the door is opened.

Therefore, the slide member 30 is the roller 3
5, the engaging leg portion 19 of the latch 6 is pushed and moved, so that no unreasonable force acts on the latch 6 and the latch member 6 operates smoothly, and the plate 31 of the slide member 30 is made of a thin metal plate. Even if formed, it can withstand a large load.

In the closed state, the latch 6 is in the full latch position in FIG. 4, the slide member 30 is in the standby position in FIG. 2, and the roller 35 of the slide member 30 is from the rotation locus of the engaging leg portion 19 of the latch 6. Since they are separated from each other, even if the latch 6 is released by the door opening operation, the engaging leg portion 19 and the roller 3
5 do not interfere with each other, and the latch 6 can be smoothly rotated toward the open position by the elasticity of the spring 10.

Further, in the present invention, the door A in the state shown in FIG.
When the force is closed, the striker 2 engages with the engagement groove 18 of the latch 6, and the force of the actuator 25 is used to rotate the latch 6 to the full latch position shown in FIG. You can also close the door without it. As a result, even if the actuator 25 fails, the vehicle can be driven without any trouble.

In the above description of the embodiment and operation, the power transmission mechanism 29 is provided with a power disconnecting mechanism such as the rotating lever 49 and the moving rod 63, but the fan lever 38 is not necessary. May be directly fixed to the rotary shaft 27, and the fan-shaped lever 38 and the interlocking lever 28 may be integrally rotated.

[0033]

As described above, according to the present invention, the lock body 3 having the concave portion 5 on the front side and fixed to the door A side, and the vehicle body B are provided.
The striker 2 fixed to the side, the latch 6 that engages with the striker 2 and rotates from the open position to the full-latch position through the half-latch position, and the latch 6 that engages with the latch 6 to prevent reverse rotation of the latch 6. The ratchet 11, the actuator 25 that is energized to operate when the latch 6 rotates to the half-latch position, the fan-shaped lever 38 that rotates by the operation of the actuator 25, and the fan-shaped lever 3
Interlocking lever 28 that can be rotated by the rotation of 8 to rotate the latch 6 in the half-latch position to the full-latch position.
And the interlocking lever 28, the latch 6, and the ratchet 11 are rotatably fixed in the recess 5, and the fan-shaped lever 38 is rotatably attached to the outside of the rear surface of the lock body 3. By using the back side of the lock body 3 effectively as the vehicle automatic door lock device, the power transmission mechanism can be housed without increasing the size of the lock body 3.

The interlocking lever 28 and the latch 6 are also provided.
Since the ratchet 11 and the fan-shaped lever 38 are an automatic door lock device for a vehicle that is axially stopped by mutually parallel shafts, there is no twist in power transmission.
Smooth power transmission can be expected.

[Brief description of drawings]

FIG. 1 is an overall schematic configuration diagram.

FIG. 2 is a front view of the lock body in an open state.

FIG. 3 is a front view of the lock body in a half-latch state.

FIG. 4 is a front view of the lock body in a fully latched state.

FIG. 5 is an exploded perspective view of a slide member.

FIG. 6 is a rear view of the lock body in an open state.

FIG. 7 is a rear view of the lock body in a half-latch state.

FIG. 8 is a rear view of the lock body in a fully latched state.

FIG. 9 is a state diagram in which the open lever is operated to open the door to disconnect the clutch of the power transmission mechanism.

FIG. 10 is a state diagram in which the open lever is operated to open the door to disconnect the clutch of the power transmission mechanism.

FIG. 11 is an exploded perspective view of a power transmission mechanism section.

FIG. 12 is a vertical sectional side view of the lock body.

[Explanation of symbols]

A ... door, B ... car body, 1 ... lock body, 2 ... striker,
3 ... Lock body, 4 ... Cover plate, 5 ... Recessed portion, 6
... Latch, 7 ... Latch shaft, 8 ... Projection, 9 ... Arc groove, 1
0 ... spring, 11 ... ratchet, 12 ... ratchet shaft, 1
3 ... Claw, 14 ... Half engagement step, 15 ... Full engagement step,
16 ... Oblong hole, 17 ... Protrusion, 18 ... Engagement groove, 19 ... Engagement leg, 20 ... Half latch switch, 21 ... Full latch switch, 22 ... Operating piece, 23 ... Rotor, 24 ... Operating piece,
25 ... Actuator, 26 ... Control circuit, 27 ... Rotating shaft, 28 ... Interlocking lever, 29 ... Power transmission mechanism, 30 ... Sliding member, 31 ... Plate, 32 ... Gap, 33 ... Shaft,
34 ... Guide pin, 35 ... Roller, 36 ... Guide groove, 36
a ... Arc-shaped groove, 36b ... Retreat groove, 37 ... Back plate, 38 ... Fan-shaped lever, 39 ... Outer peripheral edge, 40 ... Guide groove,
41 ... One end side, 42 ... Engaging portion, 43 ... Wire, 44 ...
Head, 45 ... Other end side, 46 ... Arc hole, 47 ... Radiation hole,
48 ... L-shaped hole, 49 ... Rotating lever, 50 ... Long hole, 51 ...
Open lever, 52 ... Open lever shaft, 53 ... Left arm, 54 ... Right arm, 55 ... Intermediate arm, 56 ...
Outer open handle, 57 ... Rod, 58 ... One end of inner lever, 59 ... Standing wall, 60 ... Inner open handle, 61 ... Spring, 62 ... Moving shaft, 63 ... Moving rod, 64 ... Pin, 65 ... Shaft, 66 ... vertical link, 67 ... long hole, 68 ... lock lever, 69 ... projection, 70 ... lock lever shaft, 71 ... one end side, 72 ... other end side.

Claims (2)

[Claims] 1. A lock body 3 having a concave portion 5 on the front side and fixed to a door A side, a striker 2 fixed to a vehicle body B side, and a half latch position from an open position by engaging with the striker 2. A latch 6 that rotates to a full latch position via a ratchet 11, a ratchet 11 that engages with the latch 6 to prevent the reverse rotation of the latch 6, and an actuator 25 that is energized to operate when the latch 6 rotates to the half latch position.
A fan-shaped lever 38 that is rotated by the operation of the actuator 25, and an interlocking lever 28 that can be rotated by the rotation of the fan-shaped lever 38 to rotate the latch 6 in the half-latch position to a full-latch position. The interlocking lever 28, the latch 6, and the ratchet 11 are rotatably fixed in the recess 5, and the fan-shaped lever 38 is rotatably attached to the outside of the rear surface of the lock body 3. . 2. The interlocking lever 28 according to claim 1.
An automatic door lock device for a vehicle in which the latch 6, the ratchet 11, and the fan-shaped lever 38 are axially stopped by axes parallel to each other.