JP2557012B2 - Auto-close door lock device for vehicle - 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 auto-close door lock device, and in particular, when a side door for getting on and off is halfway tightened, thereafter, the door is forcibly closed completely by the power of a motor or the like. The present invention relates to a door lock device.

[0002]

2. Description of the Related Art In the publicly known Japanese Patent Laid-Open No. 2-200982, a latch 7 is provided on a housing which engages with a striker and rotates from an open position to a half latch position to a full latch position. The interlocking lever 20 that is rotated by the power of the actuator, and when the interlocking lever 20 is rotated, the shaft 8 of the latch 7 is directly rotated (both the interlocking lever 20 and the latch 7 are fixed to the shaft 8) to fully latch the latch 7. An automatic closing door lock device for a vehicle that rotates to a position is described. Further, in the publicly known Japanese Utility Model Laid-Open No. 60-120173, a latch that rotates around an axis 14 from an open position to a full latch position through a half latch position, and an actuator that turns on when the latch is in the half latch position, The gear 10 is configured to rotate about an axis by the power of the actuator. The gear 10 is engaged with the outer periphery of the latch to rotate the latch to a full latch position. The shaft 9 is described as an automatic closing door lock device for a vehicle in which the shaft 9 is a parallel shaft and another shaft. Further, in the publicly known Japanese Utility Model Laid-Open No. 60-137067, a latch that rotates about an axis 2c from an open position to a full latch position through a half latch position, and an actuator that turns on when the latch reaches the half latch position, The lever 12 is configured to rotate about an axis by the power of the actuator. The lever 12 is engaged with the outer periphery of the latch to rotate the latch to a full latch position. The shaft 2c of the latch and the lever 12 are arranged. The axis of (2) is an orthogonal axis and another axis is described as an automatic closing door lock device for a vehicle.

[0003]

Among the above-mentioned known examples, in the one disclosed in Japanese Patent Laid-Open No. 2-200982, the interlocking lever 20 and the latch 7 are both fixed to the shaft 8. Therefore, in order to rotate the interlocking lever 20 and the latch 7, the shaft 8 must be attached to the housing A and the plate B as shown in FIG. However, it is not easy to attach the shaft 8 as described above.
In particular, in the case of a latch, since it engages with the striker and locks it in the closed state, a strong force is applied, so it is better to fix it to the plate and attach the latch so that it is pivotally attached to the fixed shaft. It's too robust and easy. In Japanese Utility Model Laid-Open No. 60-120173, since the gear rotated by the actuator is directly meshed with the outer circumference of the latch, the door cannot be closed manually. 60-
In the publication of 137067, the latch shaft 2c and the shaft of the lever 12 are orthogonal shafts, and the lever 12 is fixed to the shaft and rotates about the shaft.
There is a problem that the engagement of the two is uncertain.

[0004]

An object of the present invention is to obtain a product which operates reliably with a simple structure.

[0005]

Therefore, according to the present invention, there is provided a latch 7 which rotates about an axis 8 from an open position to a full latch position through a half latch position, and an actuator which is turned on when the latch 7 is in the half latch position. 41
And an interlocking lever 20 that rotates around the shaft 19 by the power of the actuator 41, and a pivotal portion of the interlocking lever 20 that is pivotally attached by a shaft 32 and slides when the interlocking lever 20 rotates to slide around the outer periphery of the latch 7. A slide member 31 which engages with a portion to rotate the latch 7 to a full latch position, and the shaft 8 of the latch 7, the shaft 19 of the interlocking lever 20 and the shaft 32 of the slide member 31 are all parallel shafts. And a separate shaft, and the shaft 8 of the latch 7
Is an auto-close door lock device for a vehicle in which the latch 7 is attached to the shaft 8 as a fixed shaft. Further, the present invention provides the interlocking lever 20 in the device.
The shaft 19 is also a fixed shaft, and the interlocking lever 20 is attached to the shaft 19.
This is an auto-close door lock device for a vehicle that is pivotally attached.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The door lock device of the present invention comprises a lock body 1 attached to a door A and a striker 2 attached to a vehicle body B. Reference numeral 3 denotes a synthetic resin housing of the lock body 1, and a concave portion 6 closed by a metal cover plate 4 (FIG. 6) is formed on the front side of the housing 3. 42 is the window glass of the door. A latch 7 that engages with the striker 2 is rotatably attached by a latch shaft 8 at a substantially intermediate position above and below the recess 6. When the door A is closed, the striker 2 enters the guide groove 70 of the housing 3 and engages with the engaging groove 9 of the latch 7 to engage the latch 7.
To rotate. The latch 7 has an open position in FIG. 2, a half latch position in FIGS. 3 and 4, and a full latch position in FIG.

Engagement pins 36, which project from both sides of the latch 7 and are parallel to the latch shaft 8, are attached to the latch 7. The engaging pin 36 is provided on the opposite side of the engaging groove 9 with the latch shaft 8 interposed therebetween, and when the latch 7 rotates to the half-latch position shown in FIGS.
6 is substantially the uppermost position.

On the back side of the latch 7, there is provided a small projection 11 formed in the housing 3 so as to face a substantially arcuate groove 12 centered on the latch shaft 8. The protrusions 11 are pressed into the grooves 12 so that the latches 7
In the figure, the spring 13 that biases clockwise is housed.

In the recess 6 below the latch 7,
A ratchet 15 is rotatably mounted on a ratchet shaft 14 which is parallel to the latch shaft 8. The ratchet 15 is biased counterclockwise by a spring (not shown),
The pawl 16 of the ratchet 15 engages the half-latch step 10 of the latch 7 when the latch 7 rotates to the half-latch position in FIG. 3, and the full-latch step of the latch 7 when the latch 7 rotates to the full-latch position in FIG. Engage 18 to prevent reverse rotation of latch 7.

A projection 17 is provided at the tip of the ratchet 15 so as to project to the back side through an elongated hole 43 provided in the housing 3. Although not shown, a well-known operating member such as an open lever and a lock lever is attached to the rear surface side of the housing 3, and the projection 17 is lowered in FIGS. 2 to 5 when the operating member is operated to open the door. Move to
Accordingly, the pawl 16 of the ratchet 15 is disengaged from the half-latch step 10 or the full-latch step 18 of the latch 7, and the latch 7 becomes free.

A fan-shaped interlocking lever 20 is provided above the recess 6 by a central shaft 19 parallel to the latch shaft 8.
Rotatably attached. A coupling fitting 26 of a wire 25 is attached to the one end 22 of the outer peripheral edge 21 of the interlocking lever 20 by a shaft 24. As shown in FIGS. 2 and 6, the wire 25 is wound around a U-shaped guide groove 27 formed in the outer peripheral edge 21 and then extends downward from the other end 23 of the outer peripheral edge 21 to form a passage 75 in the housing 3. Is taken out to the outside. The end of the wire 25 is connected to the actuator 41 as shown in FIG. 1, and when the wire 25 is wound by the actuator 41, the interlocking lever 20 moves from the standby position in FIGS. 2 and 3 about the central shaft 19. It rotates through the operation start position of FIG. 4 to the operation end position of FIG. In addition, 44 is a wire cover, and 76 is a metal fitting for the wire cover 44.

The interlocking lever 20 is formed with a pin 28 projecting into a groove 29 formed in the housing 3.
The interlocking lever 2 is pushed into the groove 29 by pressing the pin 28.
A spring 30 for urging 0 in the counterclockwise direction in FIG.
To store. The interlocking lever 20 rotated by the actuator 41 to the operation end position in FIG. 5 returns to the standby position in FIG. 2 due to the elasticity of the spring 30.

A slight gap is provided between the interlocking lever 20 and the latch 7, and a slide member 31 is provided in the gap. As shown in FIG. 7, the slide member 31 is formed by stacking two plates 72 at intervals 73 and fixing them by a shaft 32 and a guide pin 34. A mounting piece 74 extending toward the latch 7 is formed on the interlocking lever 20, and the mounting piece 74 is inserted between the plates 72 and rotatably locked by the shaft 32 (see FIG. 6). .

One end of the guide pin 34 of the slide member 31 penetrates the plate 72 on the rear side and extends rearward to face the groove 35 formed in the housing 3. The groove 35 is a substantially arc-shaped groove 35 centered on the latch shaft 8.
a and a substantially straight groove 35b extending from the right end of the circular arc groove 35a to the upper right side, and is a groove that is long in the left and right as a whole. The movement locus of the hook 33 of the slide member 31 when the guide pin 34 moves in the circular arc groove 35a overlaps with the rotation locus of the engagement pin 36 of the latch 7. However, when the guide pin 34 is located on the right side of the linear groove 35b, the hook 33 moves to the engaging pin 3
It departs from the rotation trajectory of 6 and does not engage with the engagement pin 36.

As shown in FIG. 6, small diameter portions 45 are formed at both ends of the latch shaft 8 of the latch 7, and the small diameter portions 45 are inserted into the cover plate 4 and the back plate 5, respectively. Crimp. A rotation lever 37 is arranged on the back side of the latch 7, and the rotation lever 37
The latch shaft 8 is inserted into the cylindrical portion 47 of the. A pin 38 protruding from the latch 7 is engaged with the rotating lever 37, and when the latch 7 rotates, the rotating lever 37 also rotates with the latch shaft 8.
To rotate together.

The cylindrical portion 47 of the rotating lever 37 penetrates the housing 3 and extends rearward, and the switch arm 39 is fixed to the protruding end thereof. A switch 40 that is pressed by the switch arm 39 when the latch 7 rotates to the half-latch position is provided near the switch arm 39. The switch 40 is connected to the control circuit of the actuator 41, and when the switch 40 is pressed by the switch arm 39, electric power is supplied to the actuator 41 to wind the wire 25.

The interlocking lever 20 is driven by the actuator 41.
4 rotates to the operation start position of FIG. 4, the slide member 31 is guided by the linear groove 35b, and the hook 33 of the slide member 31 engages with the engagement pin 36 of the latch 7 in the half latch position. When the interlocking lever 20 further moves to the operation end position of FIG. 5, the latch 7 is forcibly rotated to the full latch position by the slide member 31.

The interlocking lever 20 is also provided with a switch 54 for detecting its rotational position. The structure related to the switch 54 is exactly the same as that of the switch 40. As shown in FIG. 6, a small diameter portion 48 is formed at each end of the central shaft 19, and the small diameter portion 48 is formed. The cover plate 4 and the back plate 5 are respectively inserted and caulked. A rotary lever 50 is provided on the back side of the interlocking lever 20.
And the cylindrical portion 51 of the rotary lever 50 is attached to the central shaft 1
It is rotatably supported by 9. A pin 52 protruding from the interlocking lever 20 is engaged with the rotary lever 50 so that when the interlocking lever 20 rotates, the rotary lever 50 also rotates about the central shaft 19.

The tubular portion 51 of the rotary lever 50 penetrates the housing 3 and extends rearward, and a switch arm 53 is fixed to the protruding end thereof. In the vicinity of the switch arm 53, the switch 5 is pushed by the switch arm 53 when the interlocking lever 20 is rotated to the operation end position shown in FIG.
4 is provided. The switch 54 is connected to the control circuit of the actuator 41, and the switch 54 is connected to the switch arm 5
When it is pressed by 3, the power of the actuator 41 is turned off.

[0020]

[Operation] Next, the operation will be described. In the open state, as shown in FIG. 2, the interlocking lever 20 is stopped at the standby position by the elasticity of the spring 30, and the latch 7 is stopped at the open position by the elasticity of the spring 13. In this state, when the door A is gently closed without applying much force, the striker 2 provided on the vehicle body B side engages with the engagement groove 9 of the latch 7 on the door A side, and the latch 7
Is rotated to the half-latch position in FIG. Then
The engaging pin 36 of the latch 7 is located forward of the hook 33 of the slide member 31 in the traveling direction, and the switch arm 39 fixed to the rotary lever 37 interlocking with the latch 7 is rotated to the half-latch position. The switch 40 is pressed.

When the switch 40 is pressed by the switch arm 39, electric power is supplied to the actuator 41, the wire 25 is wound by the actuator 41, and the interlocking lever 20 is forcibly rotated clockwise about the central axis 19. . The slide member 31 connected to the interlocking lever 20 by the shaft 32 is guided by the engagement of the pin 34 and the linear groove 35b, and the hook 33 moves toward the engagement pin 36 of the latch 7, and the interlocking operation is performed. When the lever 20 rotates to the operation start position shown in FIG.
Engage with 6.

When the actuator 41 further rotates and the interlocking lever 20 moves to the operation end position in FIG. 5, the hook 33 of the slide member 31 is guided by the arcuate groove 35a and does not come off from the engaging pin 36. 5th latch 7
When the ratchet 15 is rotated to the full-latch position shown in the figure, the pawl 16 of the ratchet 15 engages with the full-latch step 18 of the latch 7 to complete the closing of the door. Further, when the interlocking lever 20 reaches the operation end position, the rotary lever 5 that rotates integrally with the interlocking lever 20.
The switch arm 53 fixed at 0 is also in the operation end position, and the switch arm 53 presses the switch 54 to stop the energization of the actuator 41. As a result, the interlocking lever 20 at the operation end position is returned to the standby position shown in FIG. 2 again by the elastic force of the spring 30.

Since the slide member 31 has the pair of hooks 33 that engage with the engagement pins 36 from both front and rear sides of the latch 7, no unreasonable force acts on the latch 7 and the latch 7 rotates smoothly. Moreover, even if the plate 72 of the slide member 31 is formed of a thin metal plate, it can withstand a large load well.

When the door is closed, the latch 7 is in the full latch position in FIG. 5, the interlocking lever 20 is in the standby position in FIG. 2, and the hook 33 of the slide member 31 is separated from the rotation track of the pin 36 of the latch 7. Therefore, when the latch 7 is released by the door opening operation, the pin 36 of the latch 7 can be smoothly rotated toward the open position by the elasticity of the spring 13 without being obstructed by the hook 33. Further, in the present invention, when the door A is vigorously closed in the state of FIG. 2 as in the conventional case, the striker 2 engages with the engaging groove 9 of the latch 7,
With that momentum, the latch 7 can be rotated to the full-latch position in FIG. 5 and the door can be closed without using the force of the actuator 41. As a result, even if the actuator 41 fails, the vehicle can be driven without any trouble.

[0025]

As described above, according to the present invention, the latch 7 that rotates about the shaft 8 from the open position to the full latch position through the half latch position, and the actuator 41 that turns on when the latch 7 reaches the half latch position. And an interlocking lever 20 that rotates around the shaft 19 by the power of the actuator 41, and a pivotal portion of the interlocking lever 20 that is pivotally attached by a shaft 32 and slides when the interlocking lever 20 rotates to slide around the outer periphery of the latch 7. Member 31 that engages with a portion to rotate the latch 7 to the full latch position
And the shaft 8 of the latch 7 and the interlocking lever 20.
Shaft 19 of the slide member 31 and the shaft 32 of the slide member 31 are parallel and separate shafts, and the shaft 8 of the latch 7 is a fixed shaft, and the latch 7 is pivotally mounted on the shaft 8. Therefore, the sliding member that is pivotally attached to the rotating portion of the interlocking lever 20 by the shaft 32 and slides when the interlocking lever 20 rotates to engage the outer peripheral portion of the latch 7 and rotate the latch 7 to the full latch position. Since 31 is provided, the latch 7 can be reliably rotated to the end. Since the shaft 8 of the latch 7, the shaft 19 of the interlocking lever 20, and the shaft 32 of the slide member 31 are all parallel shafts and separate shafts, they can be manufactured easily and accurately. The shaft 8 of the latch 7 serves as a fixed shaft, and the latch 7 is fixed to the shaft 8.
It is robust because it has been pivoted. Further, in the above device, the shaft 19 of the interlocking lever 20 is
Also, since the interlocking lever 20 is attached to the shaft 19 as a fixed shaft, the interlocking lever 20 can be firmly and easily attached.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of a door lock device according to the present invention.

FIG. 2 is a front view when the door is open.

FIG. 3 is a front view in a half-latch state.

FIG. 4 is a front view when the interlocking lever is rotated from the state of FIG. 3 to an operation start position.

FIG. 5 is a front view in a fully latched state.

FIG. 6 is a developed sectional view of the housing.

FIG. 7 is an enlarged perspective view of a slide member and a latch.

FIG. 8 is a known example diagram.

[Explanation of symbols]

A ... door, B ... car body, 1 ... lock body, 2 ... striker,
3 ... Housing, 4 ... Cover plate, 5 ... Back plate, 6 ... Recessed portion, 7 ... Latch, 8 ... Latch shaft, 9 ... Engagement groove, 10 ... Half latch stepped portion, 11 ... Projection, 12 ... Substantially arc-shaped Groove, 13 ... Spring, 14 ... Ratchet shaft, 15 ... Ratchet, 16 ... Claw, 17 ... Projection, 18 ... Full latch step, 19 ... Central shaft, 20 ... Interlocking lever, 21 ... Outer peripheral edge,
22 ... One end, 23 ... Other end, 24 ... Shaft, 25 ... Wire,
26 ... Coupling hardware, 27 ... Guide groove, 28 ... Pin, 29 ...
Groove, 30 ... Spring, 31 ... Slide member, 32 ... Shaft, 33
... hook, 34 ... guide pin, 35 ... groove, 35a ... arcuate groove, 35b ... straight groove, 36 ... engaging pin, 37 ... rotary lever, 38 ... pin, 39 ... switch arm, 40 ... switch, 41 ... Actuator, 42 ... Window glass, 43
... Long hole, 44 ... Wire cover, 45 ... Small diameter part, 47 ...
Cylindrical part, 48 ... Small diameter part, 50 ... Rotating lever, 51 ... Cylindrical part,
52 ... pin, 53 ... switch arm, 54 ... switch,
70 ... Guide groove, 72 ... Plate, 73 ... Interval, 74 ... Mounting piece, 75 ... Passage, 76 ... Mounting bracket.

Claims (2)

(57) [Claims] 1. A latch 7 which rotates about an axis 8 from an open position to a full latch position via a half latch position.
An actuator 41 that is turned on when the latch 7 is in the half-latch position; When the interlocking lever 20 is rotated, the interlocking lever 20 slides to engage the outer peripheral portion of the latch 7 and rotate the latch 7 to the full latch position. The shaft 19 and the shaft 32 of the slide member 31 are both parallel and separate shafts, and the shaft 8 of the latch 7 is a fixed shaft, and the latch 7 is pivotally mounted on the shaft 8. 2. The interlocking lever 20 according to claim 1.
The shaft 19 is also a fixed shaft.
Auto-close door lock device for vehicles that is pivotally mounted.