JPH0960371A - Back door lock device of car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To move an engagement body accompanying the turning of a rotor by turning the rotor on a spindle in a half-latched state of a latch engaged with a striker. SOLUTION: When a latch 3 is engaged with a striker 2 and in a half-latched state, a sector gear 9 is turned with as a spindle 8 as a fulcrum, thereby moving a screw 10 accompanying the turning of a sector gear 9. A closed lever 7 while being accompanying the movement of the screw 10, is turned on the spindle 8 with a bracket 6 while a latch lever 5 is turned accompanying the movement of the latch. A shaft 4 of the latch 3 is turned with a casing 1 accompanies the turning of the latch lever 5, thereby engaging the latch 3 with the striker 2 while accompanying the turning of the shaft 4, thereby producing a forced full-latched state from a half-latched state.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, a latch that meshes with a striker is rotatably provided inside a housing, a latch lever is provided on a shaft of the latch, a support is provided at the housing, and a latch is provided inside the support. A lock device for a back door of an automobile is known in which a close lever that can be engaged with and disengaged from a lever is rotatably provided via a support shaft.

However, in the conventional vehicle back door locking device, in the half-latch state in which the latch meshes with and engages the striker, the closing lever is rotated with respect to the support body with the support shaft as the fulcrum. The side edge of the tip of the close lever engages with the tip of the latch lever, the latch lever rotates while the close lever rotates, and the shaft of the latch rotates with respect to the housing as the latch lever rotates. Then, the latch is forcibly moved from the half-latch state in which the latch engages with the striker as the shaft rotates to the full-latch state.

However, when the latch is in the half-latch state, the detent lever that locks the latch is manually operated to engage the striker with the latch even though the close lever rotates about the fulcrum. When the full open state is released, the detent lever releases the lock of the latch, so the latch rotates from the half latch state to the full open state by the biasing means, and the latch lever rotates the latch shaft. Since it rotates while it accompanies, the tip of the close lever may bite the upper surface of the latch lever near the tip, and the back door may not open.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and in a half-latch state in which a latch meshes with and engages a striker, a rotating body rotates about a spindle as a fulcrum. , The engaging body moves with the rotation of the rotating body, and the close lever rotates with the support body as a fulcrum with respect to the moving body of the engaging body, and at the same time, the side edge of the tip end of the close lever latches. Engages toward the tip of the lever, the latch lever rotates while the close lever rotates, and the latch shaft rotates with respect to the housing while the latch lever rotates, causing the latch to rotate. Along with this, the half-latch state, in which the striker meshes and engages, is forcibly changed to the full-latch state, and the tip of the close lever bites the upper surface near the tip of the latch lever, causing an emergency. In this case, the engagement of the close lever by the engaging body is simply released, the close lever is set in a free state with respect to the rotating body, and only the close lever is rotated with the support shaft as a fulcrum, separately from the rotating body. An object of the present invention is to provide a lock device for a back door of an automobile capable of releasing the engagement of the tip of the lever with the upper surface near the tip of the latch lever.

[0006]

According to the present invention, there is provided a lock device for a back door of an automobile, in which a latch that engages with a striker is rotatably provided inside a housing, and a latch lever is provided on a shaft of the latch. The support is arranged in the housing,
A lock device for a back door of an automobile, wherein a close lever that can be engaged with and disengaged from the latch lever is rotatably provided on a support shaft via a support shaft, and a rotary body is rotatably provided on the support shaft. The moving body is provided with an engaging body that can be engaged with and disengaged from the close lever.

In a half-latch state in which the latch provided inside the housing meshes with and engages with the striker, when the rotating body rotates about the support shaft as a fulcrum, the engaging body provided on the rotating body rotates the rotating body. The closing lever provided on the support disposed in the housing rotates about the support shaft as the engaging body moves, and at the same time, the side edge of the tip of the closing lever moves at the tip of the latch lever. The latch lever provided on the shaft of the latch is rotated while being rotated with the rotation of the closing lever, and the shaft of the latch is rotated with respect to the housing while being rotated with the rotation of the latch lever. The half-latch state in which the striker meshes with and engages with the turner is forcibly changed to the full-latch state.

Further, in the event of an emergency in which the tip of the close lever bites the upper surface near the tip of the latch lever, the engagement by the engagement body of the close lever is simply released, and the close lever moves relative to the rotating body. As a result, only the close lever is rotated with the support shaft as a fulcrum, separately from the rotating body, and the engagement of the tip of the close lever with the upper surface near the tip of the latch lever is released.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a housing. Inside the housing 1, as shown in FIG. 2, a latch 3 that meshes with a striker 2 is rotatably provided and a shaft 4 of the latch 3 is provided. As shown in FIG. 3, a latch lever 5 is provided in the.

As shown in FIG. 1, a bracket 6 serving as a support is disposed on the upper portion of the housing 1, and the bracket 6 is closed by a latch lever 5 as shown in FIG. A lever 7 is rotatably provided via a support shaft 8.

As shown in FIG. 4, a sector gear 9 serving as a rotating body is rotatably provided on the support shaft 8, and the sector gear 9 is detachably engaged with a close lever 7 as shown in FIG. The screw 10 is provided as an engaging body of the.

A notch 12 is formed in the center of the end wall 11 of the housing 1 as shown in FIG. 1, and a notch 12 is formed in the center of the bottom wall 13 of the housing 1 as shown in FIG. A notch recess 14 that opens inward is formed subsequent to the notch 12, and near the center between one side edge of the bottom wall 13 of the housing 1 and the notch 14, as shown in FIG. A supporting hole 15 is formed, and a through hole 16 is formed near the center between the other side edge of the bottom wall 13 of the housing 1 and the cutout recess 14, as shown in FIG.

As shown in FIG.
As shown in Fig. 1, the flanges 18 and 1 flared laterally
8 are formed respectively, and through holes 19, 19 are formed in the flanges 18, 18 of the housing 1, respectively.

As shown in FIG. 1, a base member 20 is disposed on the top of the bottom wall 13 of the housing 1, and at the center of the base member 20, as shown in FIG. A recess 2 that opens inward at a location corresponding to the recess 14 of the wall 13.
1 is formed, and a partition wall 22 is formed on one side of the recess 21 of the base member 20, as shown in FIG.
Bosses 23, 23 are formed at the center of the partition wall 22 of the base member 20 so as to bulge upward and downward on the same central axis as the support hole 15 of the bottom wall 13 of the housing 1.

A partition wall 24 is formed on the other side of the recess 21 of the base member 20, as shown in FIG. 5, and a through hole of the bottom wall 13 of the housing 1 is formed in the center of the partition wall 24 of the base member 20. A fitting hole 25 is provided on the same central axis as 16 and a projecting piece 26 is formed at an edge of the partition wall 24 of the base member 20.

As shown in FIGS. 1 and 2, a stopper 27 made of elastic rubber for preventing the striker 2 from entering is provided at the inner end of the recess 21 of the base member 20.

The upper portion of the base member 20 is shown in FIGS.
As shown in FIG. 3, an upper plate 28 is disposed, and in the center of the flat plate-shaped base body 29 of the upper plate 28, as shown in FIG. 3, on the same central axis as the support hole 15 of the bottom wall 13 of the housing 1. A fitting hole 30 is formed in the upper plate 28, and a rising wall 31 bent upward is formed at one edge of the base 29 of the upper plate 28.

At the side edge of the base plate 29 of the upper plate 28, a side wall 32 bent downward as shown in FIG.
4 is formed, an overhanging piece 33 of the upper plate 28 is formed at the lower edge of the side wall 32 of the upper plate 28, as shown in FIG.
As shown in FIG. 5, near the center of the bottom wall 13 of the housing 1,
A fitting hole 34 is formed on the same central axis as the through hole 16.

As shown in FIG. 1, a bracket 6 is disposed on the upper portion of the housing 1, and a bottom wall 13 of the housing 1 is provided near the center of the base body 35 of the bracket 6 as shown in FIG. Boss 3 bulging downward on the same central axis as the support hole 15 of
6 is formed, and a bulging portion 37 bulging upward is formed on the side portion of the boss 36 of the base body 35 of the bracket 6, as shown in FIG.

Fitting hole 3 in base 29 of upper plate 28
As shown in FIG. 3, the boss 36 of the base body 35 of the bracket 6 is fitted into 0 from above.

As shown in FIG. 1, side walls 38, 38 bent downward are formed on both side edges of the base body 35 of the bracket 6.
And the side wall 3 of the bracket 6 is formed.
Flange 3 that extends laterally at the lower edge of 8, 38
As shown in FIG. 4, screw holes 40, 4 communicating with the through holes 19, 19 of the flanges 18, 18 of the housing 1 are formed in the flanges 39, 39 of the bracket 6, respectively.
0 are provided respectively, the flange 39 of the bracket 6,
39 is fixed to the flanges 18, 18 of the housing 1 by welding.

One edge of the base 35 of the bracket 6 is shown in FIG.
As shown in FIG. 2, a rising wall 41 bent upward is formed, and the lower end of the rising wall 41 of the bracket 6 faces the tip of the latch lever 5 as shown in FIG. The opening 42 is formed, and the rising wall 4 of the bracket 6 is formed.
1 has a through hole 43 formed near the center of the bracket 6 and a support hole 44 formed near the center of the rising wall 41 of the bracket 6 near the upper end thereof.
An arc-shaped guide hole 45 is bored near the center of 1.

Between the support hole 15 of the bottom wall 13 of the housing 1 and the boss 36 of the base body 35 of the bracket 6, as shown in FIG. 3, the shaft 4 is exposed to one side of the recess 21 of the base member 20. Is provided, a hexagonal angular shaft portion 46 is formed near the upper end of the shaft 4, and the lower end portion of the shaft 4 is rotatably supported in the support hole 15 of the bottom wall 13 of the housing 1. The boss 36 of the base body 35 of the bracket 6 is rotatably supported at the center between the center and the upper end of the shaft 4.

The boss 2 of the partition wall 22 of the base member 20
As shown in FIG. 3, the vicinity of the center of the shaft 4 is fitted in the shafts 3, 23.

As shown in FIG. 3, a latch 3 is arranged between the bottom wall 13 of the housing 1 and the base member 20, and the latch 3 meshes with the striker 2 as shown in FIG. Engaging latches 47 are formed on the outer peripheral edge of the latch 3, and engaging protrusions 48 projecting upward toward the outer peripheral edge of the latch 3. Pin 5
0 is provided, and the latch 3 is fixed near the lower end of the shaft 4.

The upper part of the base 35 of the bracket 6 is shown in FIG.
As shown in FIG. 3, a latch lever 5 is provided, and a hexagonal square hole 51 is formed near the base end of the latch lever 5 as shown in FIG. An engaging claw 52 is formed on the side of the latch lever 5, the square shaft portion 46 of the shaft 4 is fitted in the square hole 51 of the latch lever 5, and the latch lever 5 is fixed near the upper end of the shaft 4.

The other side edge of the bottom wall 13 of the housing 1 and the notch recess 14
As shown in FIG. 5, a support pin 53 is provided in the upper part near the center of the base member 20 so as to face the other side of the concave portion 21 of the base member 20 and project upward in parallel with the shaft 4. The small diameter portion 54 formed at the lower end of the support pin 53 is fitted into the through hole 16 of the bottom wall 13 of No. 1 and the small diameter portion 54 of the support pin 53 is inserted.
Is fixed to the through hole 16 of the bottom wall 13 of the housing 1 by caulking.

Fitting hole 2 in partition wall 24 of base member 20
5 and the fitting hole 34 of the overhanging piece 33 of the upper plate 28, the vicinity of the center of the support pin 53 is fitted, as shown in FIG.

Between the bottom wall 13 of the housing 1 and the partition wall 24 of the base member 20, as shown in FIG. 5, a latch 3 and a detent lever 55 which can be engaged and disengaged are arranged. As shown in FIG. 7, a fitting hole 56 is formed near the base end, and one side of the detent lever 55 near the tip is locked to lock the locking steps 48 and 49 of the latch 3. A claw 57 is formed, and an arm portion 58 is formed at the tip near the other side edge of the detent lever 55, and a contact piece 59 bent upward is formed at the tip of the arm portion 58 of the detent lever 55. Formed, the fitting hole 5 of the detent lever 55
6 is fitted to the lower end of the support pin 53, and the detent lever 55 is rotatably supported to the lower end of the support pin 53.

At the lower portion of the partition wall 22 of the base member 20, as shown in FIGS. 3 and 7, the latch 3 is attached to the detent lever 55 between one side of the recess 21 of the base member 20 and the engaging pin 50. A compression coil spring 60 that biases the compression coil spring 60 is provided.

As shown in FIG.
As shown in FIG. 7, a torsion coil spring 62 that urges the detent lever 55 between the head 61 of the support pin 53 and the projecting piece 33 of the upper plate 28 toward the latch 3.
Is provided.

Projecting piece 26 of partition wall 24 of base member 20
As shown in FIGS. 4 and 5, the lower portion of the stopper 6 is made of elastic rubber that prevents the detent lever 55 from rotating.
3 is provided, and the stopper 63 has a torsion coil spring 62.
The contact piece 59 of the detent lever 55 is pressed into contact with the urging force of the.

As shown in FIGS. 6 and 8, a limit switch LS which faces the side of the latch lever 5 and detects the half-latch state of the latch 3 is provided above the bulging portion 37 of the base body 35 of the bracket 6. It is arranged.

As shown in FIG. 3, a support shaft 8 projecting outward is provided outside the center of the rising wall 41 of the bracket 6 near the lower end thereof.
The small diameter portion 64 formed in the support shaft 8 is inserted into the through hole 43 of No. 1, and the support shaft 8 is fixed to the through hole 43 of the rising wall 41 of the bracket 6 by caulking.

On the outer side of the rising wall 41 of the bracket 6,
As shown in FIGS. 1 and 3, a sector-shaped sector gear 9 is provided, and a through hole 65 is formed near the center of the sector gear 9 as shown in FIG. 9 and at the end of the sector gear 9. Has a fitting hole 66, and the fitting hole 66 of the sector gear 9 is
The support shaft 8 is fitted to the shaft 8, and the sector gear 9 is rotatably supported by the support shaft 8.

Outside the sector gear 9, as shown in FIGS. 3 and 4, a latch lever 5 and a close lever 7 which can be engaged and disengaged are arranged, and a fitting hole 67 is formed near the tip of the close lever 7. As shown in FIG. 6, a claw piece 68 is formed at the tip of the closing lever 7, and the base end of the closing lever 7 is provided with a through hole 65 of the sector gear 9 as shown in FIG. A screw hole 69 communicating with the support shaft 8 is fitted in the fitting hole 67 of the close lever 7, and the close lever 7 is rotatably supported by the support shaft 8.

As shown in FIG. 9, the screw 10 is inserted from the inside into the through hole 65 of the sector gear 9, and the screw lever 69 is screwed into the screw hole 69 of the close lever 7, so that the close lever 7 is closed. The base end part of the sector gear 9 by the screw 10
The head 70 of the screw 10 is fixed along the guide hole 45 of the rising wall 41 of the bracket 6 as the closing lever 7 and the sector gear 9 rotate.

As shown in FIG. 1, a casing 71 is disposed inside the rising wall 41 of the bracket 6 near the upper end thereof, and in the center of the inner surface of the end wall 72 of the casing 71, as shown in FIG.
As shown in FIG.
4, a boss 73 bulging outward is formed on the same central axis as that of the casing 4, and a hollow cylindrical portion 75 is formed in a part of the peripheral wall 74 of the casing 71 along the tangential direction. A motor mounting portion 76 is formed at one end of the tubular portion 75.

Supporting hole 44 of rising wall 41 of bracket 6
As shown in FIG. 3, a drive shaft 77 is provided between the drive shaft 77 and the boss 73 of the end wall 72 of the casing 71. One end of the drive shaft 77 is located outside the rising wall 41 of the bracket 6 near the upper end thereof. A pinion 78 that meshes with the sector gear 9 is fixed, and a worm wheel 79 is fixed to the drive shaft 77 inside the rising wall 41 of the bracket 6 near the upper end thereof.
The one end of the drive shaft 77 is rotatably supported in the support hole 44 of No. 1, and the other end of the drive shaft 77 is rotatably supported by the boss 73 of the end wall 72 of the casing 71. Are stored inside the casing 71.

As shown in FIG. 4, stopper pieces 80 and 81 for preventing the rotation of the pinion 78 are formed on both sides of the outer peripheral edge of the sector gear 9, respectively.

On the side of the motor mounting portion 76 of the casing 71, as shown in FIG. 1, a motor M which is normally rotated by a detection signal of a limit switch LS is arranged, and a shaft 82 of the motor M has a worm wheel 79. A worm 83 that meshes with the worm 83 is connected, and the worm 83 is a tubular portion 75 of the casing 71.
Has been inserted.

As shown in FIG. 1, the reversible controller 84 is connected to the motor M as a switching means for switching the forward rotation to the reverse rotation when an overcurrent flows when the latch 3 is changed from the half-latch state to the full-latch state. Has been done.

As shown in FIG. 1, the motor M includes a latch 3
The circuit breaker 85 is built in as a protection means for stopping the reverse rotation when an overcurrent flows during the transition from the full latch state to the full open state.

As shown in FIGS. 3 and 4, a cover 86 is provided on the outer side of the rising wall 41 of the bracket 6 near the upper end thereof to cover a part of the pinion 78 and the sector gear 9 near the outer peripheral edge thereof.

As shown in FIG. 9, a door inner panel 89 is provided inside the door outer panel 88 of the back door 87 of the vehicle body, and a flange of the housing 1 is provided above the bottom wall 90 of the door inner panel 89. 18, 18 and the flanges 39, 39 of the bracket 6 are fixed by a plurality of bolts (not shown).

On the rear end panel 91 of the vehicle body, as shown in FIG. 9, the striker 2 which is projected upward and faces the cutout recess 14 of the bottom wall 13 of the housing 1 and the recess 21 of the base member 20 is fixed. ing.

Next, the operation of the first embodiment will be described.

First, the abutting portion 92 of the striker 2 is provided with the notched concave portion 14 of the bottom wall 13 of the housing 1 and the base member 2 shown in FIG.
When the back door 87 is closed with respect to the rear end panel 91 from the position in the full open state where the back door 87 comes out from the engaging recess 47 of the latch 3 facing the entrance of the recess 21 of 0, the striker 2 causes the striker 2 to move to the bottom wall 13 of the housing 1. Of the engaging recess 47 of the latch 3.
The inner edge of the striker collides with the abutting portion 92 of the striker 2.

By the collision of the inner edge of the engaging recess 47 of the latch 3 with the abutting portion 92 of the striker 2, the latch 3 resists the urging force of the compression coil spring 66 as the abutting portion 92 of the striker 2 collides. Rotating in the clockwise direction in FIG. 7, the shaft 4 rotates with the rotation of the latch 3, and the bottom wall 1 of the housing 1 moves.
3 of the support hole 15 and the boss 36 of the base body 35 of the bracket 6.
On the other hand, the latch lever 5 rotates clockwise in FIG. 7, and the latch lever 5 rotates clockwise in FIG. 8 as the shaft 4 rotates.

The detent lever 55 resists the urging force of the torsion coil spring 62 as the latch 3 rotates by the rotation of the compression coil spring 66 against the urging force of the striker 2 of the striker 2 of the latch 3. Support pin 53
7 is slightly rotated counterclockwise in FIG. 7, and the locking step portion 48 of the latch 3 is locked by the locking claw 57 of the detent lever 55.
Move towards.

After that, when the locking step portion 48 of the latch 3 reaches the locking claw 57 of the detent lever 55, the detent lever 55 is rotated clockwise by the biasing force of the torsion coil spring 62 with the support pin 53 as the fulcrum. The locking claw 57 of the detent lever 55 locks the locking step portion 48 of the latch 3, the compression coil spring 66 biases the latch 3 toward the detent lever 55, and the torsion coil spring 6 moves.
2 biases the detent lever 55 toward the latch 3,
The stopper 63 prevents the detent lever 55 from rotating due to the biasing force of the torsion coil spring 62, and the abutting portion 92 of the striker 2 causes the notch recess 14 of the bottom wall 13 of the housing 1 and the base member 20 as shown in FIG. The half-latch state is reached in which the central portion of the concave portion 21 is engaged with the engaging concave portion 47 of the latch 3 to engage with the engaging concave portion 47.

When the latch lever 5 rotates with the rotation of the shaft 4 as shown in FIG. 11, when the arc surface of the side edge near the base end of the latch lever 5 presses the contact piece 93 of the limit switch LS, the limit is reached. The switch LS detects the half-latched state of the latch 3, and the motor M is normally rotated by the detection signal of the limit switch LS.

Due to the forward rotation of the limit switch LS of the motor M, the shaft 82 of the motor M rotates, and at the same time the worm 83 rotates with the shaft 82 of the motor M.
The worm wheel 79 rotates in the clockwise direction in FIG. 1 while meshing with the worm 83, and the drive shaft 77 rotates with the worm wheel 79, and the bosses of the support wall 44 of the bracket 6 and the end wall 72 of the casing 71 as the drive shaft 77 rotates. 6 in the clockwise direction of FIG. 6 to rotate the pinion 7
8 rotates clockwise as the drive shaft 77 rotates.

The rotation of the drive shaft 77 of the pinion 78 causes the sector gear 9 to rotate counterclockwise in FIG. 6 with the support shaft 8 as a fulcrum while meshing with the pinion 78, and the screw 10 rotates the sector gear 9. 6 moves along the guide hole 45 of the rising wall 41 of the bracket 6 in the counterclockwise direction of FIG. 6, and the closing lever 7 moves in the counterclockwise direction of FIG. When the claw piece 68 of the close lever 7 moves toward the engaging claw 52 of the latch lever 5, the side edge of the claw piece 68 of the close lever 7 moves to the latch lever as shown in FIGS. 12 and 13. 5 and engages the engaging claws 52 of the screw 5, and as shown in FIG.
The head portion 70 of 0 is the guide hole 4 of the rising wall 41 of the bracket 6.
Located near the center of 5.

After that, when the motor M continues to rotate in the normal direction, the shaft 82 of the motor M rotates at the same time that the worm 83 rotates together with the shaft 82 of the motor M, and the worm wheel 79 meshes with the worm 83. Of the support shaft 4 of the bracket 6 while the drive shaft 77 rotates as the worm wheel 79 rotates.
4 and the boss 73 of the end wall 72 of the casing 71 rotate clockwise in FIG. 12, and the pinion 78 rotates clockwise in FIG. 12 as the drive shaft 77 rotates.

The rotation of the drive shaft 77 of the pinion 78 causes the sector gear 9 to rotate counterclockwise in FIG. 12 with the support shaft 8 as a fulcrum while meshing with the pinion 78, and the screw 10 rotates the sector gear 9. 12 moves along the guide hole 45 of the rising wall 41 of the bracket 6 in the counterclockwise direction as shown in FIG. 12, and the close lever 7 moves in the counterclockwise direction as shown in FIG. Then, as shown in FIGS. 15 and 16, the claw piece 68 of the close lever 7 moves laterally while engaging with the engaging claw 52 of the latch lever 5.

Due to the rotation of the closing lever 7 with the movement of the screw 10, the latch lever 5 rotates in the clockwise direction of FIG. 13 as the closing lever 7 rotates, and the shaft 4 rotates with the rotation of the latch lever 5. With respect to the support hole 15 of the bottom wall 13 of the housing 1 and the boss 36 of the base body 35 of the bracket 6, the latch 3 rotates in the clockwise direction in FIG.
10 rotates in the clockwise direction of FIG. 10 while resisting the biasing force of the compression coil spring 66 with the rotation of
The inner edge of the striker 92 is attached to the bottom wall 1 of the housing 1.
3 moves toward the inner end from the center of the cutout recess 14 and the recess 21 of the base member 20, and the circular arc surface of the base end of the latch lever 5 presses the contact piece 93 of the limit switch LS as shown in FIG. The stopper 27 prevents the abutting portion 92 of the striker 2 from entering the notched concave portion 14 of the bottom wall 13 of the housing 1 and the concave portion 21 of the base member 20, so that the head portion 70 of the screw 10 is removed as shown in FIG. Bracket 6 rising wall 4
It is located near the other end of the first guide hole 45.

The rotation of the compression coil spring 66 against the biasing force of the compression coil spring 66 caused by the rotation of the shaft 4 of the latch 3 causes the detent lever 55 to move against the biasing force of the torsion coil spring 62 as the latch 3 rotates and move the support pin 53. As a fulcrum, it slightly rotates counterclockwise in FIG. 10, and the locking step 49 of the latch 3 moves toward the locking claw 57 of the detent lever 55.

After that, when the locking step portion 49 of the latch 3 reaches the locking claw 57 of the detent lever 55, the detent lever 55 is rotated clockwise with the support pin 53 as a fulcrum by the urging force of the torsion coil spring 62. The locking claw 57 of the detent lever 55 moves so that the locking step portion 49 of the latch 3 moves.
, The compression coil spring 66 urges the latch 3 toward the detent lever 55, the torsion coil spring 62 urges the detent lever 55 toward the latch 3, and the stopper 63 urges the torsion coil spring 62 of the detent lever 55. The rotation of the striker 2 due to the urging force of the striker 2 is prevented by the abutting portion 92 of the striker 2 as shown in FIG.
The notch recess 14 and the inner end of the recess 21 of the base member 20 are brought into full engagement with the engaging recess 47 of the latch 3 so as to engage with each other.

As shown in FIG. 19, when the stopper gear 80 of the sector gear 9 blocks the rotation of the pinion 78 due to the rotation of the pinion 78 of the sector gear 9, the overcurrent flows through the motor M and the reversible controller 84. Switches the normal rotation of the motor M to reverse rotation, and the motor M is reversely rotated by the reversible controller 84.

Further, due to the reverse rotation of the motor M by the reversible controller 84, the shaft 82 of the motor M rotates at the same time, the worm 83 rotates with the shaft 82 of the motor M, and the worm wheel 79 meshes with the worm 83. The drive shaft 77 rotates counterclockwise in FIG. 19, and the drive shaft 77 rotates as the worm wheel 79 rotates.
1 support hole 44 and the boss 7 of the end wall 72 of the casing 71
3 is rotated counterclockwise in FIG. 19, and the pinion 78
Rotates counterclockwise in FIG. 19 as the drive shaft 77 rotates.

The rotation of the drive shaft 77 of the pinion 78 causes the sector gear 9 to rotate clockwise about the support shaft 8 as a fulcrum while meshing with the pinion 78, and the screw 10 rotates the sector gear 9. 19 along with the guide hole 45 of the rising wall 41 of the bracket 6, the closing lever 7 rotates in the clockwise direction of FIG. The claw piece 68 disengages from the engaging claw 52 of the latch lever 5, and the close lever 7 and the sector gear 9 return to the original standby state, as shown in FIG.

When the stopper gear 81 of the sector gear 9 blocks the rotation of the pinion 78 as shown in FIG. 6 due to the rotation of the sector gear 9 accompanying the rotation of the pinion 78, the motor M is rotated.
An overcurrent flows to the circuit breaker 85, the circuit breaker 85 automatically shuts off the overcurrent flowing to the motor M, and the circuit breaker 85 stops the reverse rotation of the motor M.

Further, the abutting portion 92 of the striker 2 is shown in FIG.
From the position of the full-latch state shown in FIG. 8 in which the notch recess 14 of the bottom wall 13 of the housing 1 and the inner end of the recess 21 of the base member 20 are engaged and engaged with the engaging recess 47 of the latch 3, the detent lever is provided. When the contact piece 59 of the arm portion 58 of the armature 55 is moved toward the side of the stopper 63 by an opener lever (not shown), the detent lever 55 resists the urging force of the torsion coil spring 62 and uses the support pin 53 as a fulcrum. 18, the arc surface near the base end of the latch lever 5 is disengaged from the contact piece 93 of the limit switch LS, and the detent lever 55 is locked as shown by the chain double-dashed line in FIG. The pawl 57 releases the lock of the lock step 49 of the latch 3.

By releasing the locking by the locking claw 57 of the detent lever 55 of the locking step portion 49 of the latch 3, the latch 3 is released.
18 is rotated counterclockwise in FIG. 18 by the urging force of the compression coil spring 66, and the shaft 4 is rotated relative to the support hole 15 of the bottom wall 13 of the housing 1 and the boss 36 of the base body 35 of the bracket 6 as the latch 3 rotates. Rotate counterclockwise in Fig. 18,
While the latch lever 5 rotates with the rotation of the shaft 4, FIG.
1 in the counterclockwise direction, and as shown in FIG.
To remain stationary outside of.

Due to the rotation of the latch 3 due to the biasing force of the compression coil spring 66, the inner edge of the engaging recess 47 of the latch 3 causes the abutting portion 92 of the striker 2 to engage with the cutout recess 14 of the bottom wall 13 of the housing 1 and the base member 20. 7 is moved from the inner end of the recess 21 toward the inlet, and the abutting portion 92 of the striker 2 causes the notch recess 14 of the bottom wall 13 of the housing 1 and the inlet of the recess 21 of the base member 20 as shown in FIG. The engaging recess 4 of the latch 3
It becomes a full open state that is missing from 7.

Further, when the latch 3 is in the half-latch state in which the striker 2 meshes with and engages with the striker 2 shown in FIG. 10, the engagement by the latch 3 of the striker 2 is released, and the full-open state is obtained. As shown in, when the tip of the close lever 7 bites the upper surface of the latch lever 5 near the tip, an emergency occurs, the sector gear 9 blocks the rotation of the pinion 78, and an overcurrent flows to the motor M. The reversible controller 84 switches the normal rotation of the motor M to the reverse rotation,
The motor M is reversed by the reversible controller 84.

Since the rotation of the pinion 78 is blocked by the sector gear 9, an overcurrent flows through the motor M, and the circuit breaker 85 automatically shuts off the overcurrent flowing through the motor M.
The reverse rotation of the motor M is stopped by the circuit breaker 85.

Thereafter, the screw 10 is removed from the screw hole 69 of the close lever 7 by utilizing the guide hole 45 of the rising wall 41 of the bracket 6, and the tip of the close lever 7 is engaged with the upper surface of the latch lever 5 near the tip thereof. When released, the close lever 7 becomes free with respect to the sector gear 9 as shown in FIG. 20, and the close lever 7 is manually rotated in the clockwise direction of FIG. As shown by the chain double-dashed line of 20, the close lever 7 returns to the original standby state and the back door 87 can be opened.

Further, even when the motor M is stopped due to an emergency due to a failure when the latch 3 shifts from the half-latch state to the full-latch state or when the latch 3 shifts from the full-latch state to the full-open state.
20 is removed from the screw hole 69 of the close lever 7 by utilizing the guide hole 45 of the rising wall 41 of the bracket 6, FIG.
As shown in, the close lever 7 becomes free with respect to the sector gear 9, and the close lever 7 is manually supported by the support shaft 8.
By rotating clockwise about the fulcrum in FIG. 20,
The back door 87 can be opened.

FIG. 21 shows a second embodiment of the present invention. As shown in FIG. 22, the bracket 6 has a latch lever 5 and a close lever 94 which can be engaged with and disengaged from the bracket 6 via a spindle 95. It is provided freely.

As shown in FIG. 21, a sector gear 96 which is a rotating body is rotatably provided on the support shaft 95, and the sector gear 96 is disengageable from a close lever 94 as shown in FIG. An engaging piece 97 is provided as the engaging body.

As shown in FIG. 22, a support shaft 95 protruding outward is provided outside the center near the lower end of the rising wall 41 of the bracket 6, and the through hole of the rising wall 41 of the bracket 6 is provided. 43, as shown in FIG.
The small diameter portion 98 formed in the above is inserted, and the support shaft 95 is fixed to the through hole 43 of the rising wall 41 of the bracket 6 by caulking.

On the outside of the rising wall 41 of the bracket 6,
As shown in FIGS. 21 and 22, a sector-shaped sector gear 96
23, a notch hole 99 is formed near the center near one side edge of the sector gear 96, and one side edge of the notch hole 99 of the sector gear 96 faces outward. A cut-and-raised engagement piece 97 is formed, and a fitting hole 100 is formed at an end of the sector gear 96.
The support shaft 95 is fitted to 0, and the sector gear 96 is connected to the support shaft 95.
It is rotatably supported by.

On both sides of the outer peripheral edge of the sector gear 96, as shown in FIG.
As shown in FIG. 2, stopper pieces 101 and 102 that prevent the pinion 78 from rotating are formed respectively.

As shown in FIGS. 22 and 23, a close lever 94 which is detachable from the latch lever 5 is arranged outside the sector gear 96, and a fitting hole for the sector gear 96 is provided near the tip of the close lever 94. A fitting hole 103 communicating with 100 is formed, and a claw piece 104 is formed at the tip of the closing lever 94.
A spindle 95 is fitted to the shaft 3, and the closing lever 94 is rotatably supported by the spindle 95.

22 and 23, a torsion coil spring 105 for urging the close lever 94 toward the engagement piece 97 of the sector gear 96 is provided on the outer periphery of the support shaft 95, and the sector gear 96 is engaged. The side edge of the close lever 94 near the base end is pressed against the piece 97 by the urging force of the torsion coil spring 105.

Since the other structure of the second embodiment is similar to that of the first embodiment shown in FIG. 1, the same parts are designated by the same reference numerals and the description thereof will be omitted.

Next, the operation of the second embodiment will be described.

The striking portion 92 of the striker 2 faces the center of the notch recess 14 of the bottom wall 13 of the housing 1 and the recess 21 of the base member 20 shown in FIG. 10 and engages with the engaging recess 47 of the latch 3. In the combined half-latch state, as shown in FIG. 11, when the arc surface of the side edge of the latch lever 5 near the base end pushes the contact piece 93 of the limit switch LS, the limit switch LS changes the half-latch state of the latch 3. After detection, the motor M rotates in the normal direction by the detection signal of the limit switch LS.

The shaft 82 of the motor M is rotated by the forward rotation of the detection signal from the limit switch LS of the motor M, and at the same time the worm 83 is rotated together with the shaft 82 of the motor M.
The worm wheel 79 rotates in the clockwise direction in FIG. 21 while meshing with the worm 83, and the drive shaft 77 rotates as the worm wheel 79 rotates, while the worm wheel 79 rotates and the support hole 44 of the rising wall 41 of the bracket 6 and the end wall 72 of the casing 71.
23 relative to the boss 73 of FIG. 23, and the pinion 78 is rotated with the rotation of the drive shaft 77.
Rotate 3 clockwise.

By the rotation of the drive shaft 77 of the pinion 78, the sector gear 96 rotates counterclockwise in FIG. 23 with the support shaft 95 as a fulcrum while meshing with the pinion 78, and the engagement piece 97 of the sector gear 96. 23 moves counterclockwise in FIG. 23 while engaging with the side edge of the close lever 94 near the base end, and the close lever 94 resists the urging force of the torsion coil spring 105 as the engaging piece 97 of the sector gear 96 moves. While rotating in the counterclockwise direction in FIG. 23 about the support shaft 95 as a fulcrum, the claw pieces 104 of the close lever 94 move toward the engaging claws 52 of the latch lever 5, and the claw pieces 104 of the close lever 94 side. The edge is the engaging claw 5 of the latch lever 5.
2 is engaged.

As the engaging lever 97 of the sector gear 96 of the closing lever 94 rotates, the latch lever 5 rotates as the closing lever 94 rotates, as shown in FIG. 5 rotates with respect to the support hole 15 of the bottom wall 13 of the housing 1 and the boss 36 of the base body 35 of the bracket 6 in the clockwise direction in FIG. 10, and the latch 3 rotates with the rotation of the shaft 4. While rotating in the clockwise direction in FIG. 10 against the biasing force of the compression coil spring 66, the inner edge of the engaging recess 47 of the latch 3 causes the abutting portion 92 of the striker 2 to move into the notch recess 14 of the bottom wall 13 of the housing 1. It moves from the center of the recess 21 of the base member 20 toward the inner end,
The stopper 27 prevents the abutting portion 92 of the striker 2 from entering the notched concave portion 14 of the bottom wall 13 of the housing 1 and the concave portion 21 of the base member 20.

The rotation of the compression coil spring 66 against the biasing force of the compression coil spring 66 caused by the rotation of the shaft 4 of the latch 3 causes the detent lever 55 to move the support pin 53 against the biasing force of the torsion coil spring 62 as the latch 3 rotates. As a fulcrum, it slightly rotates counterclockwise in FIG. 10, and the locking step 49 of the latch 3 moves toward the locking claw 57 of the detent lever 55.

After that, when the locking step 49 of the latch 3 reaches the locking claw 57 of the detent lever 55, the detent lever 55 is rotated clockwise with the support pin 53 as a fulcrum by the urging force of the torsion coil spring 62. The locking claw 57 of the detent lever 55 moves so that the locking step portion 49 of the latch 3 moves.
, The compression coil spring 66 urges the latch 3 toward the detent lever 55, the torsion coil spring 62 urges the detent lever 55 toward the latch 3, and the stopper 63 urges the torsion coil spring 62 of the detent lever 55. The rotation of the striker 2 due to the urging force of the striker 2 is prevented by the abutting portion 92 of the striker 2 as shown in FIG.
The notch recess 14 and the inner end of the recess 21 of the base member 20 are brought into full engagement with the engaging recess 47 of the latch 3 so as to engage with each other.

When the stopper gear 101 of the sector gear 96 blocks the rotation of the pinion 78 as shown in FIG. 25 due to the rotation of the sector gear 96 accompanying the rotation of the pinion 78,
An overcurrent flows through the motor M, the reversible controller 84 switches the normal rotation of the motor M to reverse rotation, and the motor M is reversely rotated by the reversible controller 84.

Further, due to the reverse rotation of the motor M by the reversible controller 84, the shaft 82 of the motor M rotates at the same time that the worm 83 rotates with the shaft 82 of the motor M, and the worm wheel 79 meshes with the worm 83. It rotates counterclockwise in FIG. 24, the drive shaft 77 rotates with the worm wheel 79, and the rising wall 4 of the bracket 6 moves.
1 support hole 44 and the boss 7 of the end wall 72 of the casing 71
It rotates counterclockwise in FIG. 25 with respect to 3, and the pinion 78
Rotates counterclockwise in FIG. 25 as the drive shaft 77 rotates.

Due to the rotation of the drive shaft 77 of the pinion 78, the sector gear 96 rotates clockwise about the support shaft 95 as a fulcrum while meshing with the pinion 78, and the engagement piece 97 of the sector gear 96 moves. 25, while engaging with the side edge of the close lever 94 near the base end, the torsion coil spring 105 causes the close lever 9 to move.
4 is urged toward the engagement piece 97 of the sector gear 96, and the closing lever 94 is moved by the urging force of the torsion coil spring 105 while the engagement piece 97 of the sector gear 96 is moved. When the closing lever 94 is rotated, the claw piece 104 of the close lever 94 is engaged with the engaging claw 52 of the latch lever 5.
23, and as shown in FIG. 23, the closing lever 94
And the sector gear 96 returns to the original standby state.

When the stopper gear 102 of the sector gear 96 blocks the rotation of the pinion 78 as shown in FIG. 23 due to the rotation of the sector gear 96 accompanying the rotation of the pinion 78,
An overcurrent flows through the motor M, the circuit breaker 85 automatically shuts off the overcurrent flowing through the motor M, and the reverse rotation of the motor M is stopped by the circuit breaker 85.

Further, when the latch 3 is in the half-latch state in which the striker 2 engages with and engages with the striker 2 shown in FIG. 10, the engagement of the striker 2 by the latch 3 is released and the full open state is obtained. As shown in, when an emergency occurs in which the tip of the close lever 94 bites the upper surface of the latch lever 5 near the tip, the sector gear 96 blocks the rotation of the pinion 78, and an overcurrent flows to the motor M. The reversible controller 84 switches the normal rotation of the motor M to the reverse rotation, and the motor M is reversed by the reversible controller 84.

The reverse rotation of the motor M by the reversible controller 84 causes the shaft 82 of the motor M to rotate, and at the same time the worm 8
3 rotates with the shaft 82 of the motor M, the worm wheel 79 rotates counterclockwise in FIG. 24 while meshing with the worm 83, and the drive shaft 77 causes the worm wheel 7 to rotate.
With the rotation of 9, the support shaft 44 of the rising wall 41 of the bracket 6 and the boss 73 of the end wall 72 of the casing 71 rotate counterclockwise in FIG. 25, and the pinion 78 rotates the drive shaft 77. While rotating, it rotates counterclockwise in FIG.

Due to the rotation of the drive shaft 77 of the pinion 78, the sector gear 96 rotates clockwise about the support shaft 95 as a fulcrum while meshing with the pinion 78, and the engagement piece 97 of the sector gear 96 moves. From the side edge near the base end of the close lever 94, move clockwise in FIG. 25,
As shown in FIG. 26, the engagement piece 97 of the sector gear 96 is disengaged from the side edge of the close lever 94 near the base end.

When the stopper gear 102 of the sector gear 96 blocks the rotation of the pinion 78 as shown in FIG. 26 due to the rotation of the sector gear 96 accompanying the rotation of the pinion 78,
An overcurrent flows through the motor M, the circuit breaker 85 automatically shuts off the overcurrent flowing through the motor M, and the reverse rotation of the motor M is stopped by the circuit breaker 85.

After that, when the engagement of the tip end of the close lever 94 with the upper surface of the latch lever 5 near the tip end is released, the close lever 94 is moved clockwise by the urging force of the torsion coil spring 105 about the support shaft 95 as a fulcrum. By rotating, the claw piece 104 of the close lever 94 separates from the engagement claw 52 of the latch lever 5, and the engagement piece 9 of the sector gear 96.
7 prevents the closing lever 94 from rotating due to the urging force of the torsion coil spring 105, and the side edge of the closing lever 94 near the base end is rotated by the torsion coil spring 105.
23, the closing lever 94 returns to the original standby state, and the back door 87 can be opened.

If the engagement piece 97 of the sector gear 96 can be retracted and retracted into a position where it can engage with the close lever 94 and a position where it cannot engage with it, when the latch 3 shifts from the half-latch state to the full-latch state, Even when the motor M is stopped due to an emergency due to a failure when the latch 3 shifts from the full-latch state to the full-open state, the closing lever 94 rotates about the support shaft 95 as a fulcrum by the urging force of the torsion coil spring 105. The back door 87 can be opened.

FIG. 27 shows a third embodiment of the present invention, in which the bracket 6 is provided with a close lever 106 which can be engaged with and disengaged from the latch lever 5 via a support shaft 107 so as to be rotatable.

As shown in FIG. 27, the spindle 107 is rotatably provided with a sector gear 108, and the sector gear 108 is provided with a locking lever 109 as an engagement body which can be engaged with and disengaged from the close lever 106. It is rotatably provided.

As shown in FIG. 27, a support shaft 107 protruding outward is provided on the outer side of the bracket 6 near the lower end of the rising wall 41 near the center thereof.

On the outside of the rising wall 41 of the bracket 6,
As shown in FIG. 27, a sector-shaped sector gear 108 that meshes with the pinion 78 is provided, and a support pin 110 that projects outward is provided near the corner between one side edge and the outer peripheral edge of the sector gear 108. The sector gear 108 is rotatably supported by the support shaft 107.

As shown in FIG. 27, stopper pieces 111 and 112 for preventing the rotation of the pinion 78 are formed on both sides of the outer peripheral edge of the sector gear 108, respectively.

As shown in FIG. 27, a latch lever 5 and a close lever 106 which can be engaged and disengaged are arranged outside the sector gear 108, and a claw piece 113 is formed at the tip of the close lever 106. Close lever 106
A notch 11 serving as a locking portion at the corner between the outer peripheral edge and one side edge.
4 is formed, and the close lever 106 is rotatably supported by the support shaft 107.

As shown in FIG. 27, a locking lever 109 which can be engaged with and disengaged from the closing lever 106 is arranged outside the sector gear 108 near the outer peripheral edge thereof, and the notch of the closing lever 106 is provided at the tip of the locking lever 109. A locking claw 115 for locking 114 is formed, a coupling pin 116 protruding outward is fixed to the base end of the locking lever 109, and the locking lever 109 is rotatably supported by a support pin 110. ing.

As shown in FIG. 27, a tension coil spring 1 for urging the closing lever 106 toward the locking lever 109 is provided on the side portion near the tip of the closing lever 106.
17 are provided.

As shown in FIG. 27, the stopper 1 for blocking the outward rotation of the closing lever 106 is provided near the one edge of the lower end of the rising wall 41 of the bracket 6.
18 is provided, and the tension coil spring 1 is provided in the stopper 118.
The urging force of 17 closes the side edge of the close lever 106 near the tip.

On the outer periphery of the support pin 110, as shown in FIG. 27, the locking lever 109 is closed.
A torsion coil spring 119 for urging toward 6 is provided.

On the outer periphery of the support pin 110, as shown in FIG. 27, the locking lever 109 is closed.
A torsion coil spring 119 for urging toward 6 is provided.

On the other side of the rising wall 41 of the bracket 6, a guide pin 120 protruding outward is provided as shown in FIG.

As shown in FIG. 27, a link plate 121 is disposed between the outside of the base end of the locking lever 109 and the guide pin 120.
A long hole 122 is provided along the longitudinal direction of the operation plate 1. One end of the link plate 121 has an operation piece 1 bent outward.
23 is formed, the other end of the link plate 121 is connected to the base end of the locking lever 109 via the connecting pin 116, and the long hole 122 of the link plate 121 is movably engaged with the guide pin 120. There is.

Since the other structure of the third embodiment is similar to that of the first embodiment shown in FIG. 1, the same parts are designated by the same reference numerals and the description thereof will be omitted.

Next, the operation of the third embodiment will be described.

The striking portion 92 of the striker 2 faces the center of the notch recess 14 of the bottom wall 13 of the housing 1 and the recess 21 of the base member 20 shown in FIG. 10, and engages with the engaging recess 47 of the latch 3. In the combined half-latch state, as shown in FIG. 11, when the arc surface of the side edge of the latch lever 5 near the base end pushes the contact piece 93 of the limit switch LS, the limit switch LS changes the half-latch state of the latch 3. After detection, the motor M rotates in the normal direction by the detection signal of the limit switch LS.

By the forward rotation of the detection signal of the limit switch LS of the motor M, the shaft 82 of the motor M rotates, and at the same time, the worm 83 rotates with the shaft 82 of the motor M.
The worm wheel 79 rotates in the clockwise direction in FIG. 1 while meshing with the worm 83, and the drive shaft 77 rotates with the worm wheel 79, and the bosses of the support wall 44 of the bracket 6 and the end wall 72 of the casing 71 as the drive shaft 77 rotates. 27 in a counterclockwise direction with respect to 73, and the pinion 78 is rotated in accordance with the rotation of the drive shaft 77.
Rotate 7 counterclockwise.

The rotation of the drive shaft 77 of the pinion 78 causes the sector gear 108 to rotate.
27 while rotating with the support shaft 107 as a fulcrum in a clockwise direction in FIG.
As the guide plate 1 moves in the clockwise direction of FIG.
2 together with the locking lever 109 while engaging 20
7 is moved in the direction of arrow a, and the closing lever 106 is moved.
27 rotates clockwise around the support shaft 107 as a fulcrum while resisting the biasing force of the tension coil spring 117 as the locking lever 109 moves, and the claw piece 113 of the close lever 106 engages with the engagement claw of the latch lever 5. It moves toward 52, and the side edge of the claw piece 113 of the close lever 106 engages with the engaging claw 52 of the latch lever 5.

As shown in FIG. 28, due to the rotation of the closing lever 106 with the movement of the locking lever 109,
The latch lever 5 rotates while the closing lever 106 rotates, and the shaft 4 rotates as the latch lever 5 rotates.
10 rotates in the clockwise direction with respect to the boss 36 of the base body 35, and the latch 3 rotates in the clockwise direction in FIG. 10 while resisting the biasing force of the compression coil spring 66 as the shaft 4 rotates. 3, the inner edge of the engaging recess 47 moves the abutting portion 92 of the striker 2 from the center of the notch recess 14 of the bottom wall 13 of the housing 1 and the recess 21 of the base member 20 toward the inner end.
The stopper 27 prevents the abutting portion 92 of the striker 2 from entering the notched concave portion 14 of the bottom wall 13 of the housing 1 and the concave portion 21 of the base member 20.

The rotation of the latch 3 against the biasing force of the compression coil spring 66 caused by the rotation of the shaft 4 causes the detent lever 55 to resist the biasing force of the torsion coil spring 62 as the latch 3 rotates and move the support pin 53. As a fulcrum, it slightly rotates counterclockwise in FIG. 10, and the locking step 49 of the latch 3 moves toward the locking claw 57 of the detent lever 55.

After that, when the locking step portion 49 of the latch 3 reaches the locking claw 57 of the detent lever 55, the detent lever 55 is rotated clockwise with the support pin 53 as a fulcrum by the urging force of the torsion coil spring 62. The locking claw 57 of the detent lever 55 moves so that the locking step portion 49 of the latch 3 moves.
, The compression coil spring 66 urges the latch 3 toward the detent lever 55, the torsion coil spring 62 urges the detent lever 55 toward the latch 3, and the stopper 63 urges the torsion coil spring 62 of the detent lever 55. The rotation of the striker 2 due to the urging force of the striker 2 is prevented by the abutting portion 92 of the striker 2 as shown in FIG.
The notch recess 14 and the inner end of the recess 21 of the base member 20 are brought into full engagement with the engaging recess 47 of the latch 3 so as to engage with each other.

As the pinion 78 of the sector gear 108 rotates, the sector gear 10 is rotated as shown in FIG.
When the stopper piece 111 of No. 8 blocks the rotation of the pinion 78, an overcurrent flows in the motor M, the reversible controller 84 switches the normal rotation of the motor M to reverse rotation, and the motor M is reversed by the reversible controller 84.

Further, due to the reverse rotation of the motor M by the reversible controller 84, the shaft 82 of the motor M rotates at the same time, the worm 83 rotates with the shaft 82 of the motor M, and the worm wheel 79 meshes with the worm 83. The drive shaft 77 rotates counterclockwise in FIG. 19, and the drive shaft 77 rotates as the worm wheel 79 rotates.
1 support hole 44 and the boss 7 of the end wall 72 of the casing 71
28 in the clockwise direction with respect to 3, and the pinion 78 rotates in the clockwise direction in FIG. 28 as the drive shaft 77 rotates.

The rotation of the drive shaft 77 of the pinion 78 causes the sector gear 108 to rotate.
While rotating with the support shaft 107 as a fulcrum in the counterclockwise direction in FIG.
28 along with the rotation of 08, the link plate 121 moves in the direction of arrow b in FIG. 28 together with the locking lever 109 while engaging the guide pin 120, and the link plate 121 pulls. Coil spring 1
17 locks the closing lever 106 and the locking lever 109
28, the closing lever 106 rotates in the counterclockwise direction in FIG. Is disengaged from the engaging claw 52 of the latch lever 5, the stopper 118 prevents the closing lever 106 from rotating due to the urging force of the tension coil spring 117, and the side edge of the close lever 106 near the front end is moved to the stopper 118 by the tension coil spring 117. When pressed, the close lever 106 and the sector gear 108 return to the original standby state, as shown in FIG.

As the pinion 78 of the sector gear 108 rotates, the sector gear 10 is rotated as shown in FIG.
When the stopper piece 112 of No. 8 blocks the rotation of the pinion 78, an overcurrent flows to the motor M, and the circuit breaker 85
Automatically shuts off the overcurrent flowing to the motor M,
The reverse rotation of the circuit is stopped by the circuit breaker 85.

Further, when the motor M is stopped due to an emergency due to a failure when the latch 3 shifts from the half-latch state to the full-latch state or when the latch 3 shifts from the full-latch state to the full-open state, the link plate 121 When the operation piece 123 is manually pushed to the side from the passenger compartment, the link plate 121 is engaged with the guide pin 120 and slightly moves in the direction of arrow c in FIG. As the plate 121 moves, it rotates counterclockwise about the support pin 110 as a fulcrum against the biasing force of the torsion coil spring 119, and as shown in FIG. 29, the locking claw 115 of the locking lever 109 moves. The lock of the notch 114 of the closing lever 106 is released.

When the locking claw 115 of the locking lever 109 of the notch 114 of the closing lever 106 is released, the closing lever 106 causes the tension coil spring 117 to move.
28 is rotated counterclockwise in FIG. 28 by the urging force of the support shaft 107 as a fulcrum, and the stopper 118 moves the close lever 106.
To prevent the tension coil spring 117 from rotating due to the urging force,
The side edge near the tip of the close lever 106 is pressed against the stopper 118 by the tension coil spring 117, and the close lever 106 returns to the original standby state as shown in FIG. 29.
The back door 87 can be opened.

Further, when the latch 3 is in the half-latch state in which it engages with and engages with the striker 2 shown in FIG. 10, the engagement of the striker 2 by the latch 3 is released to the full open state, and the close lever is closed. When an emergency occurs in which the tip of 106 bites into the upper surface of the latch lever 5 near the tip, the sector gear 108 causes the pinion 78 to move.
Of the motor M, an overcurrent flows through the motor M, the reversible controller 84 switches the normal rotation of the motor M to reverse rotation, and the motor M is reversely rotated by the reversible controller 84.

The reversal of the motor M by the reversible controller 84 causes the shaft 82 of the motor M to rotate and, at the same time, causes the worm 8 to move.
3 rotates with the shaft 82 of the motor M, the worm wheel 79 rotates counterclockwise in FIG. 19 while meshing with the worm 83, and the drive shaft 77 causes the worm wheel 7 to rotate.
As the drive shaft 77 rotates, the pinion 78 rotates in the clockwise direction with respect to the support hole 44 of the rising wall 41 of the bracket 6 and the boss 73 of the end wall 72 of the casing 71 as the drive shaft 77 rotates. While rotating clockwise in FIG.

The rotation of the drive shaft 77 of the pinion 78 causes the sector gear 108 to rotate.
While rotating with the support shaft 107 as a fulcrum in the counterclockwise direction in FIG.
With the rotation of 08, the support pin 110 moves counterclockwise in FIG. 28, and the link plate 121 moves in the direction of arrow b in FIG. The locking claw 115 of the lever 109 is disengaged from the notch 114 of the close lever 106.

As the pinion 78 of the sector gear 108 rotates, the sector gear 10 is rotated as shown in FIG.
When the stopper piece 112 of No. 8 blocks the rotation of the pinion 78, an overcurrent flows to the motor M, and the circuit breaker 85
Automatically shuts off the overcurrent flowing to the motor M,
The reverse rotation of the circuit is stopped by the circuit breaker 85.

Then, when the engagement of the tip of the closing lever 106 with the upper surface near the tip of the latch lever 5 is released, the closing lever 106 is counterclockwise in FIG. When the closing lever 106 is rotated, the claw piece 113 of the closing lever 106 is disengaged from the engaging claw 52 of the latch lever 5, and the stopper 118 prevents the closing coil 106 from rotating due to the biasing force of the tension coil spring 117. The side edge of the side is pressed against the stopper 118 by the tension coil spring 117, and as shown in FIG. 27, the close lever 106 returns to the original standby state and the back door 87 can be opened.

FIG. 30 shows a fourth embodiment of the present invention, in which the bracket 6 is provided with a close lever 124 which can be engaged with and disengaged from the latch lever 5 via a support shaft 125 so as to be rotatable.

As shown in FIG. 30, the support shaft 125 is rotatably provided with a sector gear 126, and the sector gear 126 is provided with a locking lever 127 as a disengageable engagement member with the close lever 124. It is rotatably provided.

As shown in FIG. 30, a support shaft 125 protruding outward is provided on the outer side of the bracket 6 near the lower end of the rising wall 41 near the center thereof.

On the outside of the rising wall 41 of the bracket 6,
As shown in FIG. 30, a sector-shaped sector gear 126 that meshes with the pinion 78 is provided, and a support pin 128 that projects outward is provided near the corner between one side edge and the outer peripheral edge of the sector gear 126. The sector gear 126 is rotatably supported by the support shaft 125.

As shown in FIG. 30, stopper pieces 129 and 130 for blocking the rotation of the pinion 78 are formed on both sides of the outer peripheral edge of the sector gear 126, respectively.

As shown in FIG. 30, on the outside of the sector gear 126, a latch lever 5 and a releasable close lever 124 are arranged, and a claw piece 131 is formed at the tip of the close lever 124. Close lever 124
Notch 13 serving as a locking portion at the corner between the outer peripheral edge and one side edge
2 is formed, and the close lever 124 is rotatably supported by the support shaft 125.

As shown in FIG. 30, a locking lever 127 that can be engaged with and disengaged from the closing lever 124 is arranged outside the sector gear 126 near the outer peripheral edge thereof, and the notch of the closing lever 124 is provided at the tip of the locking lever 127. A locking claw 133 that locks 132 is formed, and an operation piece 134 that is bent outward is formed on the upper edge of the locking lever 127 near the base end, and the locking lever 127 is attached to the support pin 128. It is rotatably supported.

As shown in FIG. 30, the extension coil spring 1 for biasing the closing lever 124 toward the locking lever 127 is provided on the side portion of the closing lever 124 near the tip.
35 are provided.

As shown in FIG. 30, the stopper 1 for blocking the rotation of the closing lever 124 projecting outward is provided near the one edge of the lower end portion of the rising wall 41 of the bracket 6.
36 is provided, and the tension coil spring 1 is provided on the stopper 136.
Due to the urging force of 35, the side edge of the close lever 124 near the tip is pressed.

A locking lever 127 is provided on the outer periphery of the support pin 128 as shown in FIG.
A torsion coil spring 137 for urging toward 4 is provided.

Since the other structure of the fourth embodiment is the same as that of the first embodiment shown in FIG. 1, the same parts are designated by the same reference numerals and the description thereof will be omitted.

Next, the operation of the fourth embodiment will be described.

The striking portion 92 of the striker 2 faces the center of the notch recess 14 of the bottom wall 13 of the housing 1 and the recess 21 of the base member 20 shown in FIG. 10, and engages with the engaging recess 47 of the latch 3. In the combined half-latch state, as shown in FIG. 11, when the arc surface of the side edge of the latch lever 5 near the base end pushes the contact piece 93 of the limit switch LS, the limit switch LS changes the half-latch state of the latch 3. After detection, the motor M rotates in the normal direction by the detection signal of the limit switch LS.

Due to the forward rotation of the detection signal from the limit switch LS of the motor M, the shaft 82 of the motor M rotates, and at the same time, the worm 83 rotates with the shaft 82 of the motor M.
The worm wheel 79 rotates in the clockwise direction in FIG. 1 while meshing with the worm 83, and the drive shaft 77 rotates with the worm wheel 79, and the bosses of the support wall 44 of the bracket 6 and the end wall 72 of the casing 71 rotate as the worm wheel 79 rotates. The rotation of the pinion 78 in the counterclockwise direction of FIG.
Rotate counterclockwise at 0.

The rotation of the drive shaft 77 of the pinion 78 causes the sector gear 126 to rotate.
30 while rotating with the support shaft 125 as a fulcrum in the clockwise direction in FIG.
30 together with the rotation of the support pin 128, the closing lever 124 resists the biasing force of the tension coil spring 135 with the movement of the locking lever 127, and the support shaft 125 is used as a fulcrum. Is rotated clockwise, the claw piece 131 of the close lever 124 moves toward the engaging claw 52 of the latch lever 5, and the side edge of the claw piece 131 of the close lever 124 moves to the engaging claw 52 of the latch lever 5. Engage.

By rotating the closing lever 124 with the movement of the locking lever 127, as shown in FIG.
The latch lever 5 rotates with the rotation of the close lever 124, and the shaft 4 rotates with the rotation of the latch lever 5, and the support hole 15 and the bracket 6 of the bottom wall 13 of the housing 1
10 rotates in the clockwise direction with respect to the boss 36 of the base body 35, and the latch 3 rotates in the clockwise direction in FIG. 10 while resisting the biasing force of the compression coil spring 66 as the shaft 4 rotates. 3, the inner edge of the engaging recess 47 moves the abutting portion 92 of the striker 2 from the center of the notch recess 14 of the bottom wall 13 of the housing 1 and the recess 21 of the base member 20 toward the inner end.
The stopper 27 prevents the abutting portion 92 of the striker 2 from entering the notched concave portion 14 of the bottom wall 13 of the housing 1 and the concave portion 21 of the base member 20.

The rotation of the latch 3 against the biasing force of the compression coil spring 66 caused by the rotation of the shaft 4 causes the detent lever 55 to resist the biasing force of the torsion coil spring 62 as the latch 3 rotates and move the support pin 53. As a fulcrum, it slightly rotates counterclockwise in FIG. 10, and the locking step 49 of the latch 3 moves toward the locking claw 57 of the detent lever 55.

After that, when the locking step portion 49 of the latch 3 reaches the locking claw 57 of the detent lever 55, the detent lever 55 is rotated clockwise with the support pin 53 as a fulcrum by the urging force of the torsion coil spring 62. The locking claw 57 of the detent lever 55 moves so that the locking step portion 49 of the latch 3 moves.
, The compression coil spring 66 urges the latch 3 toward the detent lever 55, the torsion coil spring 62 urges the detent lever 55 toward the latch 3, and the stopper 63 urges the torsion coil spring 62 of the detent lever 55. The rotation of the striker 2 due to the urging force of the striker 2 is prevented by the abutting portion 92 of the striker 2 as shown in FIG.
The notch recess 14 and the inner end of the recess 21 of the base member 20 are brought into full engagement with the engaging recess 47 of the latch 3 so as to engage with each other.

As the pinion 78 of the sector gear 126 rotates, the sector gear 12 is rotated as shown in FIG.
When the stopper piece 129 of 6 blocks the rotation of the pinion 78, an overcurrent flows in the motor M, the reversible controller 84 switches the normal rotation of the motor M to the reverse rotation, and the motor M is reversed by the reversible controller 84.

Further, due to the reverse rotation of the motor M by the reversible controller 84, the shaft 82 of the motor M rotates at the same time as the worm 83 rotates with the shaft 82 of the motor M, and the worm wheel 79 meshes with the worm 83. The drive shaft 77 rotates counterclockwise in FIG. 19, and the drive shaft 77 rotates as the worm wheel 79 rotates.
1 support hole 44 and the boss 7 of the end wall 72 of the casing 71
31, the pinion 78 rotates in the clockwise direction of FIG. 31 as the drive shaft 77 rotates.

The rotation of the drive shaft 77 of the pinion 78 causes the sector gear 126 to rotate.
While rotating with the support shaft 125 as a fulcrum in the counterclockwise direction in FIG. 31, the locking lever 127 is engaged with the sector gear 1.
With the rotation of 26, the support pin 128 moves counterclockwise in FIG. 31, the tension coil spring 135 biases the close lever 124 toward the locking lever 127, and the close lever 124 is biased by the tension coil spring 135. With the movement of the locking lever 127, the support shaft 125 pivots counterclockwise in FIG.
The claw piece 131 of the close lever 124 is disengaged from the engaging claw 52 of the latch lever 5, the stopper 136 blocks the rotation of the close lever 124 due to the biasing force of the tension coil spring 135, and the side edge of the close lever 124 near the tip end is closed. The tension coil spring 135 presses against the stopper 136,
As shown in 0, the close lever 124 and the sector gear 126 return to the original standby state.

As the pinion 78 of the sector gear 126 rotates, the sector gear 12 is rotated as shown in FIG.
When the stopper piece 130 of 6 blocks the rotation of the pinion 78, an overcurrent flows through the motor M, and the circuit breaker 85
Automatically shuts off the overcurrent flowing to the motor M,
The reverse rotation of the circuit is stopped by the circuit breaker 85.

Further, when the motor M is stopped due to an emergency due to a failure when the latch 3 shifts from the half latch state to the full latch state or when the latch 3 shifts from the full latch state to the full open state, the locking lever 127 When the operation piece 134 is pushed down from the passenger compartment by a manual operation, the locking lever 12
7 rotates counterclockwise in FIG. 31 around the support pin 128 as a fulcrum while resisting the biasing force of the torsion coil spring 137,
As shown in FIG. 32, the locking claw 133 of the locking lever 127 releases the locking of the notch 132 of the close lever 124.

When the locking claw 133 of the locking lever 127 of the notch 132 of the closing lever 124 is released, the closing lever 124 is pulled by the tension coil spring 135.
31 is rotated counterclockwise in FIG. 31 by the urging force of the support shaft 125 as a fulcrum, and the stopper 136 is closed.
To prevent the tension coil spring 135 from rotating due to the urging force,
The side edge near the tip of the close lever 124 is pressed against the stopper 136 by the tension coil spring 135, and the close lever 124 returns to the original standby state as shown in FIG.
The back door 87 can be opened.

Further, when the latch 3 is in the half-latch state in which the striker 2 engages with the striker 2 shown in FIG. 10, the engagement of the striker 2 by the latch 3 is released to the full open state, and the close lever is closed. In the event of an emergency in which the tip of 124 bites the upper surface of the latch lever 5 near the tip, the sector gear 126 causes the pinion 78 to move.
Of the motor M, an overcurrent flows through the motor M, the reversible controller 84 switches the normal rotation of the motor M to reverse rotation, and the motor M is reversely rotated by the reversible controller 84.

By the reverse rotation of the motor M by the reversible controller 84, the shaft 82 of the motor M rotates and at the same time the worm 8 moves.
3 rotates with the shaft 82 of the motor M, the worm wheel 79 rotates counterclockwise in FIG. 19 while meshing with the worm 83, and the drive shaft 77 causes the worm wheel 7 to rotate.
As the drive shaft 77 rotates, the pinion 78 rotates in the clockwise direction with respect to the support hole 44 of the rising wall 41 of the bracket 6 and the boss 73 of the end wall 72 of the casing 71 as the drive shaft 77 rotates. While rotating in the clockwise direction in FIG.

The rotation of the drive shaft 77 of the pinion 78 causes the sector gear 126 to rotate.
While rotating with the support shaft 125 as a fulcrum in the counterclockwise direction in FIG. 31, the locking lever 127 is engaged with the sector gear 1.
With the rotation of 26, it moves in the counterclockwise direction in FIG. 31 together with the support pin 128, and the locking claw 133 of the locking lever 127 separates from the notch 132 of the close lever 124.

As the pinion 78 of the sector gear 126 rotates, the sector gear 12 is rotated as shown in FIG.
When the stopper piece 130 of 6 blocks the rotation of the pinion 78, an overcurrent flows through the motor M, and the circuit breaker 85
Automatically shuts off the overcurrent flowing to the motor M,
The reverse rotation of the circuit is stopped by the circuit breaker 85.

Then, when the engagement of the tip end of the close lever 124 with the upper surface of the latch lever 5 near the tip end is released, the close lever 124 is counterclockwise in FIG. 31 with the support shaft 125 as a fulcrum by the urging force of the tension coil spring 135. When the claw piece 131 of the close lever 124 is disengaged from the engaging claw 52 of the latch lever 5, the stopper 136 prevents the close coil 124 from rotating due to the urging force of the tension coil spring 135, and the tip of the close lever 124. The side edge of the side is pressed against the stopper 136 by the tension coil spring 135, and as shown in FIG. 30, the close lever 124 returns to the original standby state and the back door 87 can be opened.

FIG. 33 shows the fifth embodiment of the present invention, in which the bracket 6 is provided with a close lever 138 which can be engaged with and disengaged from the latch lever 5 so as to be rotatable via a support shaft 139.

As shown in FIG. 33, the support shaft 139 is rotatably provided with a sector gear 140, and the sector gear 140 is provided with a locking lever 141 as an engagement body that can be engaged with and disengaged from a close lever 138. It is rotatably provided.

As shown in FIG. 33, a support shaft 139 protruding outward is provided on the outer side of the bracket 6 near the lower end of the rising wall 41 near the center thereof.

On the outside of the rising wall 41 of the bracket 6,
As shown in FIG. 33, a sector-shaped sector gear 140 that meshes with the pinion 78 is provided, and a support pin 142 that projects outward is provided near the corner between one side edge and the outer peripheral edge of the sector gear 140. The sector gear 140 is rotatably supported by the support shaft 139.

As shown in FIG. 33, stopper pieces 143 and 144 for preventing rotation of the pinion 78 are formed on both sides of the outer peripheral edge of the sector gear 140, respectively.

As shown in FIG. 33, on the outside of the sector gear 140, a latch lever 5 and a close lever 138 which is freely engageable and disengageable are arranged, and a claw piece 145 is formed at the tip of the close lever 138. Close lever 138
A notch 14 serving as a locking portion at the corner between the outer peripheral edge and one side edge.
6 is formed, and the close lever 138 is rotatably supported by the support shaft 139.

As shown in FIG. 33, a locking lever 141 which can be engaged with and disengaged from a closing lever 138 is arranged outside the sector gear 140 near the outer peripheral edge thereof, and the notch of the closing lever 138 is provided at the tip of the locking lever 141. A locking claw 147 for locking 146 is formed, a connecting pin 148 protruding outward is fixed to the base end of the locking lever 141, and the locking lever 141 is rotatably supported by the support pin 142. ing.

As shown in FIG. 33, a tension coil spring 1 for urging the closing lever 138 toward the locking lever 141 is provided on the side portion of the closing lever 138 near the tip.
49 are provided.

As shown in FIG. 33, the stopper 1 for blocking the rotation of the closing lever 138 projecting outward is provided near the one edge of the lower end of the rising wall 41 of the bracket 6.
50 is provided, and the tension coil spring 1 is provided in the stopper 150.
The side edge near the tip of the closing lever 138 is pressed against the urging force of 49.

On the outer circumference of the support pin 142, as shown in FIG. 33, a locking lever 141 is closed.
A torsion coil spring 151 for urging toward 8 is provided.

On the other side of the rising wall 41 of the bracket 6, as shown in FIG. 33, a guide pin 152 protruding outward is provided.

As shown in FIG. 33, a link plate 153 is arranged between the outer side of the base end portion of the locking lever 141 and the guide pin 152, and the link plate 153 is provided.
Is provided with a long hole 154 along the longitudinal direction, and the upper edge of the link plate 153 has a convex portion 15 protruding upward.
5 is formed and the convex portion 1 of the link plate 153 is formed.
Engagement piece 1 extending inward at the upper edge of the arc-shaped 55
56 is formed, the end of the link plate 153 is connected to the base end of the locking lever 141 via the connecting pin 148, and the elongated hole 154 of the link plate 153 is movably engaged with the guide pin 152. .

As shown in FIG. 33, a movable rod 157 is provided on the upper portion between the other side edge of the rising wall 41 of the bracket 6 and the guide pin 152, and the link plate 153 is provided near the tip of the movable rod 157. The upper surface of the engaging piece 156 is engaged, and the movable rod 157 is a door outer handle (not shown).
The engaging piece 156 of the link plate 153 is manually operated.
Is pushed downward.

Since the other structure of the fifth embodiment is similar to that of the first embodiment shown in FIG. 1, the same parts are designated by the same reference numerals and the description thereof will be omitted.

Next, the operation of the fifth embodiment will be described.

The abutting portion 92 of the striker 2 faces the center of the notch recess 14 of the bottom wall 13 of the housing 1 and the recess 21 of the base member 20 shown in FIG. 10 and engages with the engaging recess 47 of the latch 3. In the combined half-latch state, as shown in FIG. 11, when the arc surface of the side edge of the latch lever 5 near the base end pushes the contact piece 93 of the limit switch LS, the limit switch LS changes the half-latch state of the latch 3. After detection, the motor M rotates in the normal direction by the detection signal of the limit switch LS.

Due to the normal rotation of the detection signal of the limit switch LS of the motor M, the shaft 82 of the motor M rotates, and at the same time, the worm 83 rotates with the shaft 82 of the motor M.
The worm wheel 79 rotates in the clockwise direction in FIG. 1 while meshing with the worm 83, and the drive shaft 77 rotates with the worm wheel 79, and the bosses of the support wall 44 of the bracket 6 and the end wall 72 of the casing 71 rotate as the worm wheel 79 rotates. When the drive shaft 77 rotates, the pinion 78 rotates counterclockwise in FIG.
Rotate 3 counterclockwise.

Due to the rotation of the drive shaft 77 of the pinion 78, the sector gear 140 is rotated.
33 while rotating with the support shaft 139 as a fulcrum in the clockwise direction in FIG.
As the support pin 142 moves in the clockwise direction of FIG.
52 together with the locking lever 141 while engaging with FIG.
3 in the direction of arrow a, and the closing lever 138
Rotates clockwise around the support shaft 139 as a fulcrum while resisting the biasing force of the tension coil spring 149 as the locking lever 141 moves, and the claw piece 145 of the close lever 138 engages the engagement claw of the latch lever 5. By moving toward 52, the side edge of the claw piece 145 of the close lever 138 engages with the engaging claw 52 of the latch lever 5.

By rotating the closing lever 138 with the movement of the locking lever 141, as shown in FIG.
The latch lever 5 rotates with the rotation of the close lever 138, and the shaft 4 rotates with the rotation of the latch lever 5, and the support hole 15 of the bottom wall 13 of the housing 1 and the bracket 6 are rotated.
10 rotates in the clockwise direction with respect to the boss 36 of the base body 35, and the latch 3 rotates in the clockwise direction in FIG. 10 while resisting the biasing force of the compression coil spring 66 as the shaft 4 rotates. 3, the inner edge of the engaging recess 47 moves the abutting portion 92 of the striker 2 from the center of the notch recess 14 of the bottom wall 13 of the housing 1 and the recess 21 of the base member 20 toward the inner end.
The stopper 27 prevents the abutting portion 92 of the striker 2 from entering the notched concave portion 14 of the bottom wall 13 of the housing 1 and the concave portion 21 of the base member 20.

The rotation of the compression coil spring 66 against the biasing force of the compression coil spring 66 caused by the rotation of the shaft 4 of the latch 3 causes the detent lever 55 to resist the biasing force of the torsion coil spring 62 with the rotation of the latch 3 to move the support pin 53. As a fulcrum, it slightly rotates counterclockwise in FIG. 10, and the locking step 49 of the latch 3 moves toward the locking claw 57 of the detent lever 55.

After that, when the locking step portion 49 of the latch 3 reaches the locking claw 57 of the detent lever 55, the detent lever 55 is rotated clockwise with the support pin 53 as a fulcrum by the urging force of the torsion coil spring 62. The locking claw 57 of the detent lever 55 moves so that the locking step portion 49 of the latch 3 moves.
, The compression coil spring 66 urges the latch 3 toward the detent lever 55, the torsion coil spring 62 urges the detent lever 55 toward the latch 3, and the stopper 63 urges the torsion coil spring 62 of the detent lever 55. The rotation of the striker 2 due to the urging force of the striker 2 is prevented by the abutting portion 92 of the striker 2 as shown in FIG.
The notch recess 14 and the inner end of the recess 21 of the base member 20 are brought into full engagement with the engaging recess 47 of the latch 3 so as to engage with each other.

The rotation of the sector gear 140 accompanying the rotation of the pinion 78 causes the sector gear 14 to rotate as shown in FIG.
When the stopper piece 143 of 0 blocks the rotation of the pinion 78, an overcurrent flows through the motor M, the reversible controller 84 switches the normal rotation of the motor M to reverse rotation, and the motor M is reversely rotated by the reversible controller 84.

Further, due to the reverse rotation of the motor M by the reversible controller 84, the shaft 82 of the motor M rotates at the same time, the worm 83 rotates with the shaft 82 of the motor M, and the worm wheel 79 meshes with the worm 83. The drive shaft 77 rotates counterclockwise in FIG. 19, and the drive shaft 77 rotates as the worm wheel 79 rotates.
1 support hole 44 and the boss 7 of the end wall 72 of the casing 71
34 in the clockwise direction with respect to 3, and the pinion 78 rotates in the clockwise direction in FIG. 34 as the drive shaft 77 rotates.

The rotation of the drive shaft 77 of the pinion 78 causes the sector gear 140 to rotate.
34 while rotating with the support shaft 139 as a fulcrum in the counterclockwise direction while engaging with the locking lever 141.
With the rotation of 40, the support pin 142 moves in the counterclockwise direction in FIG. 34, and the link plate 153 moves in the direction of the arrow b in FIG. Coil spring 1
49 locks the closing lever 138 with the locking lever 141
34, the closing lever 138 rotates counterclockwise in FIG. 34 with the support shaft 139 as a fulcrum while the locking lever 141 moves due to the biasing force of the tension coil spring 149, and the claw piece 145 of the closing lever 138. Is disengaged from the engaging claw 52 of the latch lever 5, the stopper 150 prevents the closing lever 138 from rotating due to the urging force of the tension coil spring 149, and the side edge of the close lever 138 near the tip end is attached to the stopper 150 by the tension coil spring 149. When pressed, the close lever 138 and the sector gear 140 return to the original standby state, as shown in FIG.

As the pinion 78 of the sector gear 140 rotates, the sector gear 14 is rotated as shown in FIG.
When the stopper piece 144 of 0 blocks the rotation of the pinion 78, an overcurrent flows to the motor M, and the circuit breaker 85
Automatically shuts off the overcurrent flowing to the motor M,
The reverse rotation of the circuit is stopped by the circuit breaker 85.

Furthermore, when the motor M is stopped due to an emergency due to a failure at the time of shifting the latch 3 from the half-latch state to the full-latch state or at the time of shifting the latch 3 from the full-latch state to the full-open state, the movable rod 1
When 57 is moved downward by the manual operation of the door outer handle, the movable rod 157 pushes down the engaging piece 156 of the link plate 153 downward, and the link plate 153 engages with the guide pin 152, as shown in FIG. The locking lever 141 is moved slightly in the direction of arrow c.
Rotates counterclockwise in FIG. 34 with the support pin 142 as a fulcrum while resisting the urging force of the torsion coil spring 151 as the link plate 153 moves, and as shown in FIG. 35, the locking claw of the locking lever 141 is locked. 147 releases the lock of the notch 146 of the closing lever 138.

By releasing the locking of the notch 146 of the closing lever 138 by the locking claw 147 of the locking lever 141, the closing lever 138 moves the tension coil spring 149.
34 is rotated counterclockwise in FIG. 34 by the urging force of the support shaft 139 as a fulcrum, and the stopper 150 moves the close lever 138.
The rotation of the tension coil spring 149 due to the urging force is blocked,
The side edge near the tip of the closing lever 138 is pressed against the stopper 150 by the tension coil spring 149, and the closing lever 138 returns to the original standby state as shown in FIG.
The back door 87 can be opened.

When the latch 3 is in the half-latch state in which the striker 2 is engaged with the striker 2 shown in FIG. 10, the striker 2 is disengaged by the latch 3 to be in the full open state, and the close lever is closed. When an emergency occurs in which the tip end of 138 bites into the upper surface of the latch lever 5 near the tip end, the sector gear 140 causes the pinion 78 to move.
Of the motor M, an overcurrent flows through the motor M, the reversible controller 84 switches the normal rotation of the motor M to reverse rotation, and the motor M is reversely rotated by the reversible controller 84.

By the reverse rotation of the motor M by the reversible controller 84, the shaft 82 of the motor M rotates and at the same time the worm 8 moves.
3 rotates with the shaft 82 of the motor M, the worm wheel 79 rotates counterclockwise in FIG. 19 while meshing with the worm 83, and the drive shaft 77 causes the worm wheel 7 to rotate.
As the drive shaft 77 rotates, the pinion 78 rotates in the clockwise direction with respect to the support hole 44 of the rising wall 41 of the bracket 6 and the boss 73 of the end wall 72 of the casing 71 as the drive shaft 77 rotates. While rotating in the clockwise direction in FIG.

The rotation of the drive shaft 77 of the pinion 78 causes the sector gear 140 to rotate.
34 while rotating with the support shaft 139 as a fulcrum in the counterclockwise direction while engaging with the locking lever 141.
With the rotation of 40, the support pin 142 moves counterclockwise in FIG. 34, and the link plate 153 moves in the direction of arrow b in FIG. 34 together with the locking lever 141 while engaging with the guide pin 152. The locking claw 147 of the lever 141 is disengaged from the notch 146 of the close lever 138.

As the pinion 78 of the sector gear 140 rotates, the sector gear 14 is rotated as shown in FIG.
When the stopper piece 144 of 0 blocks the rotation of the pinion 78, an overcurrent flows to the motor M, and the circuit breaker 85
Automatically shuts off the overcurrent flowing to the motor M,
The reverse rotation of the circuit is stopped by the circuit breaker 85.

After that, when the front end of the close lever 138 is released from the engagement with the upper surface of the latch lever 5 near the front end, the close lever 138 is counterclockwise in FIG. 34 with the support shaft 139 as a fulcrum by the urging force of the tension coil spring 149. When the closing lever 138 is rotated, the claw piece 145 of the closing lever 138 is disengaged from the engaging claw 52 of the latch lever 5, and the stopper 150 blocks the closing lever 138 from rotating due to the biasing force of the tension coil spring 149. The side edge on the side is pressed against the stopper 150 by the tension coil spring 149, and as shown in FIG. 33, the close lever 138 returns to the original standby state and the back door 87 can be opened.

[0190]

As described above, according to the vehicle back door locking device of the present invention, in the half-latch state in which the latch meshes with and engages the striker, the rotating body rotates about the support shaft as a fulcrum. Since the moving body moves, the engaging body can move with the rotation of the rotating body, and the closing lever rotates with the support shaft as a fulcrum with respect to the supporting body with the movement of the engaging body, and at the same time, the tip of the closing lever Since the side edge of the part engages with the tip of the latch lever, the latch lever can be rotated while the close lever is rotated, and the latch shaft can be rotated with respect to the housing while the latch lever is rotated. Since the latch moves, the half-latch state in which the latch meshes with and engages the striker as the shaft rotates can be forcibly changed to the full-latch state.

Further, when an emergency occurs in which the tip of the close lever bites the upper surface near the tip of the latch lever, the engagement by the engagement body of the close lever is simply released, and the close lever is moved relative to the rotating body. It is possible to release the engagement of the end of the close lever with respect to the upper surface near the end of the latch lever by rotating only the close lever with the support shaft as a fulcrum separately from the rotating body. , There is no inconvenience that the back door cannot be opened.

[Brief description of drawings]

FIG. 1 is a front view of a lock device for a back door of an automobile showing a first embodiment of the present invention.

FIG. 2 is a side sectional view of a main part of FIG.

FIG. 3 is a sectional side view of a main part of FIG. 1;

FIG. 4 is a rear view of FIG. 1;

5 is a side sectional view of the main part of FIG.

6 is a cutaway front view of the main part of FIG.

7 is a plan view of an essential part of FIG.

FIG. 8 is an enlarged plan view of an essential part of FIG.

FIG. 9 is a side view showing an arrangement state of a housing and a striker with respect to a back door and a rear end panel.

FIG. 10 is an enlarged plan view of an essential part showing a half-latch state in which the striker of the latch is engaged and engaged.

FIG. 11 is an enlarged plan view of an essential part showing a half-latch detection state by a limit switch of a latch.

FIG. 12 is a front view of a main portion cut off when a claw piece of a close lever is engaged with an engaging claw of a latch lever.

FIG. 13 is an enlarged plan view of an essential part of FIG.

FIG. 14 is a front view showing the operating state of the closing lever at the time of half-latch that meshes with and engages the striker of the latch.

FIG. 15 is a cutaway front view of a main portion of the latch lever when the latch lever rotates along with the rotation of the close lever.

16 is an enlarged plan view of an essential part of FIG.

FIG. 17 is a front view showing a full-latch state in which the striker is meshed and engaged by the operation of the closing lever of the latch.

FIG. 18 is an enlarged plan view of an essential part of FIG.

FIG. 19 is a fragmentary front view showing a state in which rotation of a pinion is blocked by a stopper piece of a sector gear.

FIG. 20 is a fragmentary front view showing a state in which engagement of a close lever with a sector gear by a screw is released.

FIG. 21 is a front view of a main part of a lock device for a back door of an automobile showing a second embodiment of the present invention.

FIG. 22 is a rear view of FIG. 21.

23 is a cutaway front view of the main part of FIG. 21.

FIG. 24 is a front view of essential parts showing a full-latch state in which the striker is meshed with and engaged by the operation of the close lever of the latch.

FIG. 25 is a cutaway front view of the main part of FIG.

FIG. 26 is a fragmentary front view showing a state in which the engagement by the engagement piece of the sector gear of the close lever is released.

FIG. 27 is a rear perspective view of a main part of a lock device for a back door of an automobile showing a third embodiment of the present invention.

FIG. 28 is a rear perspective view of an essential part when the latch lever rotates along with the rotation of the close lever.

FIG. 29 is a rear perspective view of essential parts showing a state in which the locking of the closing lever by the locking lever is released.

FIG. 30 is a rear perspective view of an essential part of a lock device for a back door of an automobile showing a fourth embodiment of the present invention.

FIG. 31 is a rear perspective view of a main part of the latch lever, which is rotated when the close lever is rotated.

FIG. 32 is a rear perspective view of essential parts showing a state in which the locking of the closing lever by the locking lever is released.

FIG. 33 is a rear perspective view of an essential part of a lock device for a back door of an automobile showing a fifth embodiment of the present invention.

FIG. 34 is a rear perspective view of a main part when the latch lever rotates along with the rotation of the closing lever.

FIG. 35 is a rear perspective view of essential parts showing a state in which the locking of the closing lever by the locking lever is released.

[Explanation of symbols]

 1 Case 2 Striker 3 Latch 4 Shaft 5 Latch Lever 6 Bracket 7 Close Lever 8 Spindle 9 Sector Gear 10 Screw 11 End Wall 12 Notch 13 Bottom Wall 14 Notch Recess 15 Support Hole 16 Through Hole 17 Side Wall 18 Flange 19 Through Hole 20 Base member 21 Recess 22 Partition wall 23 Boss 24 Partition wall 25 Fitting hole 26 Projecting piece 27 Stopper 28 Upper plate 29 Base body 30 Fitting hole 31 Rising wall 32 Side wall 33 Overhanging piece 34 Fitting hole 35 Base body 36 Boss 37 Bulging Part 38 Side wall 39 Flange 40 Screw hole 41 Standing wall 42 Opening part 43 Through hole 44 Support hole 45 Guide hole 46 Square shaft part 47 Engagement concave part 48 Engaging step part 49 Engaging step part 50 Engaging pin 51 Angular hole 52 Engagement Fitting claw 53 Support pin 54 Small diameter part 55 Detent lever 56 Fitting hole 57 Locking 58 Arm 59 Contact piece 60 Compression coil spring 61 Head 62 Torsion coil spring 63 Stopper 64 Small diameter part 65 Through hole 66 Fitting hole 67 Fitting hole 68 Claw piece 69 Screw hole 70 Head 71 Casing 72 End wall 73 Boss 74 Circumferential wall 75 Cylindrical part 76 Motor mounting part 77 Drive shaft 78 Pinion 79 Worm wheel 80 Stopper piece 81 Stopper piece 82 Shaft 83 Worm 84 Reversible controller 85 Circuit breaker 86 Cover 87 Back door 88 Door outer panel 89 Door inner panel 90 Bottom wall 91 Rear end Panel 92 Abutting part 93 Contact piece 94 Close lever 95 Spindle 96 Sector gear 97 Engaging piece 98 Small diameter part 99 Notch hole 100 Fitting hole 101 Stopper piece 102 Stopper piece 103 Fitting hole 104 Claw piece 105 Torsional coil Le spring 106 Close lever 107 Support shaft 108 Sector gear 109 Rocking lever 110 Support pin 111 Stopper piece 112 Stopper piece 113 Claw piece 114 Notch 115 Locking claw 116 Connecting pin 117 Extension coil spring 118 Stopper 119 Torsion coil spring 120 Guide pin 121 Link plate 122 Length Hole 123 Operation Piece 124 Close Lever 125 Spindle 126 Sector Gear 127 Locking Lever 128 Support Pin 129 Stopper Piece 130 Stopper Piece 131 Claw Piece 132 Notch 133 Locking Claw 134 Operation Piece 135 Tension Coil Spring 136 Stopper 137 Torsion Coil Spring 138 Close Lever 139 Support Axis 140 Sector gear 141 Locking lever 142 Support pin 143 Stopper piece 144 Stopper piece 1 45 Claw Piece 146 Notch 147 Locking Claw 148 Connecting Pin 149 Extension Coil Spring 150 Stopper 151 Torsion Coil Spring 152 Guide Pin 153 Link Plate 154 Long Hole 155 Convex 156 Engagement Piece 157 Movable Motor LS Limit Switch

Claims (7)

[Claims] 1. A latch that meshes with a striker is rotatably provided inside a casing, a latch lever is provided on a shaft of the latch, a support is provided on the casing, and the latch is provided on the support. In a lock device for a back door of an automobile, in which a close lever that can be engaged with and disengaged from a lever is rotatably provided via a support shaft, a rotary body is rotatably provided on the support shaft, and the close lever is provided on the rotary body. A lock device for a back door of an automobile, characterized in that a disengageable engagement body is provided. 2. The lock device for a back door of an automobile according to claim 1, wherein the engagement body that is detachable from the close lever is a screw, and the close lever is fixed to the rotating body by the screw. 3. An engagement body which is engageable with and disengageable from a close lever,
2. The back door of an automobile according to claim 1, wherein the rotating lever is an engaging piece formed to project from a surface of the rotating body, and the closing lever is constantly urged toward the engaging piece of the rotating body by a torsion coil spring. Locking device. 4. The lock device for a back door of an automobile according to claim 3, wherein the engaging piece of the rotating body can be retracted into and out of a state in which the close lever can be engaged and a state in which the close lever is not engageable. 5. An engagement body that is engageable and disengageable with a close lever,
2. A locking lever rotatably attached to a rotating body, wherein one end of the locking lever is arranged to engage with the closing lever, and the closing lever is constantly urged toward the locking lever by a spring. Car back door locking device. 6. The other end of the locking lever can be manually operated, and the other end is pushed down to be rotated with respect to the rotating body so that the engagement between the one end of the locking lever and the close lever can be released. The lock device for a back door of an automobile according to claim 5. 7. The lock device for a back door of an automobile according to claim 1, wherein the rotating body is a sector gear that is rotated by driving a motor.