JP5718147B2 - Vehicle door latch system - Google Patents

Description

  The present invention relates to a vehicle door latch system including a closer mechanism that moves a door from a half latch position to a full latch position by power of an electric drive source.

  The vehicle door latch system as described above is configured such that when an object is sandwiched between the door and the vehicle body during the closing operation of the closer mechanism when the door is closed from the half latch position to the full latch position, the door is provided on the door. By opening the operation handle for opening the door, the operating force transmission path connecting the closer mechanism and the latch mechanism is cut off, so that the power of the closer mechanism motor cannot be transmitted to the latch mechanism, and the latch mechanism is latched. The door can be opened by the release operation (see, for example, Patent Documents 1 and 2).

JP 2003-328621 A Japanese Patent No. 4150655

  However, in the vehicle door latch system described in Patent Document 1, when the door is in the open state, when the door is closed in the locked state while the lock lever is switched from the unlocked position to the locked position by the locking operation, Since the opening operation of the operation handle is not transmitted to the release lever of the latch mechanism in the locked state, once the closing operation is started, the closing operation of the closer mechanism cannot be interrupted even if the operation handle is opened. .

  Further, in the vehicle door latch system described in Patent Document 2, by providing a fail-safe lever on the control unit, the closing operation can be interrupted halfway by opening the operation handle even when the lock lever is in the locked position. However, in order to enable the operation of the fail safe lever provided in the control unit to be transmitted to the latch mechanism, an operation force transmission member for transmitting the opening operation of the operation handle to the release lever of the latch mechanism, and the fail safe lever The operation force transmission member for transmitting the operation to the clutch mechanism of the closer mechanism is required, and the number of operation force transmission members is increased and the configuration is complicated.

  In view of the above problems, the present invention provides a vehicle door latch system in which the closing operation of the closer mechanism can be interrupted by operating the operation handle even when the lock lever is switched from the unlocked position to the locked position when the door is open. The purpose is to do.

According to the present invention, the above problem is solved as follows.
(1) A closer mechanism that moves the door from the half-latch position to the full-latch position, a latch mechanism that holds the door in the full-latch position, and an outside lever that is released by operation of an outside handle provided outside the door. And an inside lever that is released by operation of an inside handle provided inside the door of the door, and a fail-safe lever that cuts off the linkage of the open lever of the latch mechanism and the close operation of the closer mechanism by a connecting means. A fully-closed release lever, a lock lever capable of transmitting the release operation of the outside lever to the fully-closed release lever, a lock lever that can be switched to a locked position that cannot be transmitted, and the lock lever from the locked position. Switchable to the lock position by an electric drive source And an unlocking actuator, there the door is opened, in response to said lock lever is switched to the locked position from the unlocked position, from the locking position the locking lever in the unlocking actuator to switch to the unlocked position, releasing the open lever of said closed during the operation of the closer mechanism, the outside handle of the operation or the inside handle to release operating the fully closed release lever with a operation of the latch mechanism The fail-safe lever is cut and activated.

(2) In the above (1), further comprising a child lock lever that can be switched between a child unlocking position where the release operation of the inside lever can be transmitted to the outside lever and a child locking position where the release operation cannot be transmitted to the outside lever. there in the unlocking position, when said child lock lever is in the child unlock position, wherein the latch mechanism by the releasing operation of the full close release lever by releasing operation of the inside lever by the operation of the inside handle together to release actuating the opening lever, the fail-safe lever can be cut operation. in addition, when the locking lever is in the unlocked position, the operation of the outside handle regardless of the position of the child lock lever The outside The causes are deactivated the open lever of the latch mechanism by the releasing operation of the full close release lever by releasing operation of chromatography, thereby cutting operating said fail safe lever.

(3) In the above (1) or (2), a fully open release that is linked to a fully open door latch device that holds the door in a fully open position and that releases in conjunction with the operation of the outside handle and the operation of the inside handle comprising a lever, when the door by the fully opened door latch device is held in the fully open position, the locking position the locking lever in the unlocking actuator when said locking lever is switched to the locked position from the unlocked position from switching to the unlocked position.

(4) In any one of the above (1) to (3), further comprising: a door opening and closing device capable of automatically opening and closing the door; and a release actuator for releasing the outside lever by an electric drive source, door in an open state, in a state in which the lock lever is switched to the locked position from the unlocked position, when the closing speed of the door by the driving of the door lock device has been detected a predetermined amount or more, the locking and unlocking actuator drive to switch to the unlocked position the lock lever from the locked position.

  According to the present invention, when the door is open and the lock lever is switched from the unlocked position to the locked position, the lock lever can be switched from the locked position to the unlocked position by the unlocking actuator. Even if the lock lever is switched to the locked position when the door is open, the lock lever is switched to the unlocked position before the closer mechanism is closed. The closing operation of the closer mechanism can be interrupted by the operation, and the configuration can be simplified.

1 is a side view of a vehicle to which an embodiment of the present invention is applied. It is a front view of a rear part full closure door latch device. It is a front view of the principal part when the latch of a rear part full-closed door latch apparatus exists in an open position. It is a front view of the principal part when the latch of a rear part full closure door latch device exists in a half latch position. It is a front view of the principal part when a rear part full closure door latch device carries out a closing operation. It is a front view of the principal part when a fail safe lever moves to a cutting position during closing operation of a rear part full closure door latch device. It is the side view seen from the vehicle outside of the relay operation device. It is the side view seen from the car inside of a relay operation device. It is the side view of the principal part seen from the vehicle outside of the relay operating device when a lock lever is in an unlocking position and a child lock lever is in an unlocking position. It is the side view of the principal part seen from the vehicle outside of the relay operation apparatus when a lock lever is in a locking position and a child lock lever is in an unlocking position. It is the side view of the principal part seen from the vehicle outside of the relay operating device when a lock lever is in an unlocking position and a child lock lever is in a child locking position. It is a block diagram of a control circuit. It is a time chart figure concerning embodiment.

Hereinafter, an embodiment according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, the door 1 closes the entrance / exit provided on the side surface of the vehicle body 2 by the upper, middle, and lower guide rails 3, 4, 5 facing the front-rear direction provided on the side surface of the vehicle body 2. It is supported so that it can be opened and closed from the fully closed position to the fully open position moved backward along the side surface of the vehicle body 2 while moving slightly outward from the outer surface of the vehicle body 2 and vice versa.

  Inside the door 1, the front and rear fully-closed door latch devices 6 and 7 for holding the door 1 in the fully-closed position, and the fully-open door latch device 8 for holding the door 1 in the fully-open position are relayed. A relay operating device 9 for controlling is provided. The outer panel of the door 1 is provided with an outside handle 10 that is operated when the door 1 is opened and closed from the outside of the vehicle, and the inside of the door 1 is operated when the door 1 is opened and closed from the inside of the vehicle. An inside handle 11 is provided.

  Inside the rear panel of the vehicle body 2 is provided a door opening / closing device 12 that automatically opens and closes the door 1 with the power of an electric drive source.

  Each operation of the outside handle 10 and the inside handle 11 is performed by using cables 16 and 17 that can transmit an operating force via the relay operating device 9 when a lock lever 20 (to be described later) of the relay operating device 9 is in an unlocked position. To the release levers 61 and 705 of the front and rear fully closed door latch devices 6 and 7, respectively.

  The operation direction of the outside handle 10 is the same as the operation direction when the door 1 is opened and the operation direction when the door 1 is closed. The operation direction of the inside handle 11 is a door opening direction when the door 1 is opened, and a door closing direction when the door 1 is closed.

  When the door 1 is in the fully closed position, the front and rear fully closed door latch devices 6 and 7 are latch mechanisms that hold the door 1 in the fully closed position by engaging each striker fixed to the vehicle body 2 side. Each has.

  As shown in FIGS. 2 to 6, the rear fully-closed door latch device 7 includes a latch mechanism 70 for holding the door 1 in the fully-closed position, and when the door 1 is closed to the half-latch position (half-door position), A closer mechanism 71 is provided for closing the door 1 from the half latch position to the full latch position (fully closed position) by closing the latch mechanism 70 with the power of the closer motor 711 serving as a general drive source.

  The latch mechanism 70 includes a latch 707 that is pivotally attached to a striker 2 a that is pivotally attached to a base 701 fixed to the door 1 and is fixed to the vehicle body 2, and a pivot 702 that is pivotally attached to the base 701 by a pivot 702. A possible pole 708, an open lever 703 that is pivotally supported by the base 701 by a pivot 702, and can be rotated integrally with the pole 708; and a release lever 705 that is pivotally supported by the base 701 by a pivot 704.

  The latch 707 is rotated by a predetermined angle counterclockwise from the open position (position shown in FIG. 3) separated from the striker 2a in accordance with the closing operation of the door 1, and the half latch position (see FIG. 3) barely engages the striker 2a. 4) and a full latch position (position shown in FIG. 5) that is further rotated counterclockwise by a predetermined angle from the half latch position and fully engaged with the striker 2a. When the latch 707 is in the half latch position or the full latch position, the pawl 708 engages with the latch 707 to prevent the latch 707 from rotating in the opening direction (clockwise) and move the door 1 in the opening direction. To prevent.

  The release lever 705 is connected to a later-described fully-closed release lever 18 of the relay operation device 9 via the cable 17, and when the lock lever 20 of the relay operation device 9 is in the unlocked position, the outside handle 10 or the inside handle 11. 2 is released from the standby position shown in FIG. 2 (turning counterclockwise in FIG. 2) to release the open lever 703 from the standby position shown in FIGS. And the pole 708 is detached from the latch 707, and the fail safe lever 72 is moved from a transmission position described later to a cutting position. Note that the connecting means according to the present invention is constituted by the cable 17 and the release lever 705 in the present embodiment.

  The closer mechanism 71 includes a closer motor 711, a drive lever 713 that is pivotally supported by a pivot 712 and can be swung vertically by rotation of the closer motor 711, and a first closer that is pivotally supported by a pivot 714 and can be swung vertically. A lever 715, a second closer lever 717 whose upper end is pivotally attached to the first closer lever 715 by a connecting shaft 716 and movable up and down, and pivotally supported by a latch shaft 718 so as to be integrally rotatable with the latch 707. And a fail-safe lever 72 that is pivotally supported by the pivot 73 and interlocks with the release operation of the release lever 705.

  The fail safe lever 72 is held at the transmission position (the position shown in FIGS. 2 to 5) when the release lever 705 is in the standby position, and swings counterclockwise from the transmission position when the release lever 705 is released. Move to the cutting position (position shown in FIG. 6).

  The second closer lever 717 is connected to a long hole 721 of the fail safe lever 72 so that the connecting pin 717 b provided in the lower part is slidable in the vertical direction, and in conjunction with the operation of the fail safe lever 72, The claw portion 717a moves from a standby position (position shown in FIGS. 2 to 5) where the claw portion 719a is engaged with the step portion 719a of the latch lever 719 to a cutting position (position shown in FIG. 6) where it is separated from the step portion 719a.

  When the fail safe lever 72 and the second closer lever 717 are in the transmission position, the power of the closer motor 711 can be transmitted to the latch 707 via the drive lever 713, the first and second closer levers 715, 717 and the latch lever 719. When the fail safe lever 72 and the second closer lever 717 are in the cut position, the transmission path between the second closer lever 717 and the latch lever 719 is cut, and the power of the closer motor 711 is latched 707. Cannot be communicated to.

  The closer motor 711 moves the latch 707 from the open position shown in FIG. 3 to the half latch position shown in FIG. 4 when the door 1 is closed, and the half latch detection switch 40 (see FIG. 12) moves to the half latch position of the latch 707. In response to the detection, the drive lever 713 is rotated from the standby position shown in FIGS. 2 to 4 in the closing direction (clockwise).

  When the drive lever 713 rotates in the closing direction, the pushing portion 713a of the driving lever 713 pushes the bent portion 715a of the first closer lever 715 downward, and the first closer lever 715 is closed from the standby position shown in FIGS. While rotating in the direction (counterclockwise), the second closer lever 717 is moved downward.

  When the second closer lever 717 is moved downward, the claw portion 717a of the second closer lever 717 is engaged with the step portion 719a of the latch lever 719, and the latch lever 719 is rotated counterclockwise, thereby latch 707. Is rotated from the half latch position to the full latch position to forcibly move the door 1 from the half latch position to the full latch position.

  If a part of the body is sandwiched between the door 1 and the vehicle body 2 during the closing operation in which the door 1 is moved from the half latch position to the full latch position by driving the closer motor 711, the relay operating device 9 When the lock lever 20 is in the unlocked position, by operating the outside handle 10 or the inside handle 11 to release the release lever 705, the pole 708 is released via the open lever 703, and the fail safe By moving the lever 72 from the transmission position to the cutting position, the claw portion 717 a of the second closer lever 717 can be detached from the step portion 719 a of the latch lever 719. Thereby, even during the closing operation, the door 1 can be opened by interrupting the closing operation by operating the outside handle 10 or the inside handle 11.

  The door opening and closing device 12 is wound around a rotating drum that rotates forward and backward, which is an electric drive source, and a rotating drum that is rotated by the power of the opening and closing motor 121 so as to be able to be wound and fed out, and the rear end portion of the door 1 A power transmission cable 122 coupled to the motor, an electromagnetic clutch 123 capable of intermittently connecting a power transmission path between the open / close motor 121 and the rotating drum, and a rotation sensor 124 for detecting the rotation of the rotating drum. By driving the opening / closing motor 121 in a state (a state where the power transmission path between the opening / closing motor 121 and the rotating drum is connected), the rotating drum rotates in a predetermined direction and the door 1 is automatically opened / closed by the power of the opening / closing motor 121. can do. When the electromagnetic clutch 123 is in a disconnected state (a state in which the power transmission path between the opening / closing motor 121 and the rotating drum is disconnected), the door 1 can be manually opened and closed.

  As shown in FIGS. 7 to 11, the relay operating device 9 includes a base plate 13 that is fixed to the door 1, an outside lever 14 that is linked to the operation of the outside handle 10, and an inside lever that is linked to the operation of the inside handle 11. 15, a fully-closed release lever 18 linked to the release levers 61, 705 of the front and rear fully-closed door latch devices 6, 7 via cables 16, 17, a locking / unlocking actuator 19 using a motor as a drive source, A lock lever 20 that can be rotated to a locked position and an unlocked position by driving a lock actuator 19, a child lock lever 21 that can be moved to a child unlocked position and a child locked position by a manual operation, and an operating force to the fully open door latch device 8. A fully open release lever 23 linked via a cable 22 capable of transmitting It includes an outside handle detection switch 24, an inside handle opening detection switch 25, an inside handle closing detection switch 26 and a child lock detection switch 27 that can detect the positions of the lever 14, the inside lever 15 and the child lock lever 21, respectively. Composed.

  The detection signals of the outside handle detection switch 24, the inside handle door detection switch 25, the inside handle door detection switch 26, and the child lock detection switch 27 are transmitted to the control circuit device 100 disposed at a proper position of the vehicle.

  The outside lever 14 is pivotally supported on the vehicle inner surface of the base plate 13 by a pivot 28, and a cable 29 capable of transmitting an operating force to an arc-shaped first connection hole 141 centered on the pivot 28 provided at the upper portion. A release actuator 30 having a motor as a power source is connected via a cable, and an arcuate second connection hole 142 provided below the first connection hole 141 is connected to the outside via a cable 31 capable of transmitting an operating force. The handle 10 is connected.

  The release actuator 30 is disposed in the door 1 and operates to release when an operation switch 41 (see FIG. 12) provided in the driver's seat is operated or when a predetermined condition is satisfied.

  When the release actuator 30 is released or the outside handle 10 is operated, these operating forces are transmitted to the outside lever 14 via the cable 29 or 31, and the outside lever 14 is The release operation (turning counterclockwise in FIG. 8 and clockwise in FIG. 9) is performed from the standby position (see FIG. 8) against the urging force.

  When the outside lever 14 is released, the operation of the outside handle 10 is detected by the outside handle detection switch 24, and the engagement piece 143 provided at the lower part of the outside lever 14 is located above the fully opened release lever 23. Thus, the fully open release lever 23 is released from the standby position (see FIGS. 7, 9, 10, 11) about the pivot 32 against the biasing force of the spring (see FIGS. 7, 9, 10, 11). In the counterclockwise direction).

  The fully-closed release lever 18 is pivotally supported on the base plate 13 by the pivot 28 so as to be rotatable separately from the outside lever 14 and the inside lever 15, and the arm that extends downward is connected to the front via the cables 16 and 17. The release levers 61 and 705 of the rear fully-closed door latch devices 6 and 7 are connected and released from the standby position (see FIGS. 8 to 11) (reverse clockwise in FIG. 8 and clockwise in FIGS. 9 to 11). ), The front and rear fully-closed door latch devices 6 and 7 are released and the door 1 can be opened.

  The inside lever 15 is pivotally supported by the base plate 13 so as to be able to rotate integrally with the pivot 28, and is connected to a fully open release lever 23 via a link 33, and is fixed to an inner end portion of the pivot 28. Based on the opening operation of the inside handle 11 (clockwise rotation in FIGS. 7 and 9-11 and counterclockwise rotation in FIG. 8), the standby position (FIGS. 8, 9-11) is resisted against the biasing force of the spring. (See FIG. 7, 9 to 11 clockwise rotation), and also based on a closing operation (FIG. 7, 9 to 11 counterclockwise, FIG. 8 clockwise rotation). Thus, a closing release operation (rotation counterclockwise in FIGS. 7 and 9 to 11) is performed from the standby position against the urging force of the spring. The link 33 has an upper end connected to the inside lever 15 by a connecting shaft 35 and a lower end connected to the fully open release lever 23 by a connecting shaft 34.

  The opening release operation of the inside lever 15 is detected by the inside handle opening detection switch 25, and only when the child lock lever 21 is in the child unlocking position (see FIGS. 7 to 10), the contact portion of the inside lever 15 151 is transmitted to the outside lever 14 by coming into contact with an engagement / disengagement pin 211 provided in the elongated hole 145 of the outside lever 14 so as to be slidable in the front-rear direction. Thus, when the inside lever 15 is opened and released from the standby position, the outside lever 14 is also released from the standby position.

  The close release operation of the inside lever 15 is detected by the inside handle door closing detection switch 26 and is transmitted to the fully open release lever 23 via the link 33 regardless of the position of the child lock lever 21. As a result, the fully open release lever 23 is released from the standby position around the pivot 32. The release operation of the fully open release lever 23 enables the door 1 that is transmitted to the fully open door latch device 8 via the cable 22 and held in the fully open position to move in the closing direction.

  The lock lever 20 is pivotally supported on the base plate 13 by a pivot 36, and is connected to an output lever 191 of the locking / unlocking actuator 19 and a lock knob (not shown) for manual operation disposed inside the door 1. By the electric operation of the actuator 19 or the manual operation of the lock knob, the actuator 19 is rotated to the unlocking position (see FIGS. 7, 9, and 11) and the locking position (see FIG. 10).

  The fully-closed release lever 18 is connected to the outside lever 18 through an engagement / disengagement pin 37 slidably engaged with the elongated hole 181, the L-shaped elongated hole 144 of the outside lever 14, and the elongated hole 201 of the lock lever 20. 14.

  When the lock lever 20 is in the unlocked position, the fully-closed release lever 18 is released from the standby position together with the engagement / disengagement pin 37 in conjunction with the release operation of the outside lever 14 (counterclockwise in FIG. 8, FIGS. 9 and 11). The operation of the outside handle 10 is transmitted to the front and rear fully closed door latch devices 6 and 7 via the cables 16 and 17. Further, when the lock lever 20 is in the locking position, even if the outside lever 14 is released, the engagement / disengagement pin 29 relatively slides in the elongated hole 144 and the fully closed release lever 18 stops at the standby position. The operation of the outside handle 10 is not transmitted to the front and rear fully closed door latch devices 6 and 7.

  The child lock lever 21 is pivotally supported on the base plate 13 by the pivot 38, and the operation portion 21a that can be operated when the door 1 is opened is manually operated, so that the open release operation of the inside lever 15 is controlled by the fully closed release lever 18. Can be moved to a child unlocking position (see FIGS. 7, 9, and 10) that can be transmitted to and a child unlocking position (see FIG. 11) that cannot be transmitted. Each position of the child lock lever 21 is detected by a child lock detection switch 27.

  When the child lock lever 21 is in the child unlocked position, the engagement / disengagement pin 211 is in the movement locus of the abutting portion 151 of the inside lever 15, and the opening release operation of the inside lever 15 is transmitted to the outside lever 14. The opening operation of the inside handle 11 can be transmitted to the front and rear fully closed door latch devices 6 and 7 via the cables 16 and 17. Further, when the child lock lever 21 is in the child locking position, the engagement / disengagement pin 211 moves outside the movement locus of the abutting portion 151 so that the open release operation of the inside lever 15 cannot be transmitted to the outside lever 14, The opening operation of the handle 11 is not transmitted to the front and rear fully closed door latch devices 6 and 7.

  As described above, when the lock lever 20 of the relay operating device 9 is in the unlocked position and the child lock lever 21 is in the child unlocked position, the operation of the outside handle 10 or the operation of the inside handle 11 is performed during the closing operation of the closer mechanism 71. With the opening operation, the release levers 61 and 705 of the front and rear fully closed door latch devices 6 and 7 are released to move the fail safe lever 72 and the second closer lever 717 from the transmission position to the cutting position to interrupt the closing operation. The door 1 can be opened. When the lock lever 20 of the relay operating device 9 is in the unlocked position and the child lock lever 21 is in the child locked position, the front and rear parts are fully closed by operating the outside handle 10 during the closing operation of the closer mechanism 71. The release levers 61 and 705 of the door latch devices 6 and 7 can be released to move the fail safe lever 72 and the second closer lever 717 from the transmission position to the cutting position, thereby interrupting the closing operation and opening the door 1.

  Next, the control circuit device 100 for controlling the closer motor 711, the opening / closing motor 121, the locking / unlocking actuator 19, and the release actuator 30 will be described.

  The control circuit device 100 includes a microprocessor that executes a series of control processes in accordance with a program stored in advance. As shown in FIG. 12, the input interface includes a rotation sensor 124 of the door opening and closing device 12, Locking / unlocking detection switch 39 for detecting each position of the lock lever 21, a half latch detection switch 40 for detecting the half latch position of the latch 707 of the rear fully closed door latch device 7, and a full latch detection switch 42 for detecting the full latch position. The operation switch 41, the outside handle detection switch 24, the inside handle opening detection switch 25, the inside handle closing detection switch 26, and the child lock detection switch 27 that are operated when the door 1 is automatically opened and closed are electrically connected to each other. Along with the door Based on the detection signal output from the rotation sensor 124 due to the rotation of the rotating drum accompanying the opening / closing movement of the door, the movement direction detection circuit for detecting the movement direction of the door 1, the speed detection circuit for detecting the opening / closing speed, and the position of the door 1 Built-in position detection circuit to detect. A closer motor 711, an opening / closing motor 121, an electromagnetic clutch 123, a release actuator 30, and a locking / unlocking actuator 19 as output devices are electrically connected to the output interface of the control circuit device 100.

  The control circuit device 100 controls each output device as follows by inputting the signal of each switch.

  The full latch detection switch 42 detects the full latch position of the latch 707, the lock / unlock detection switch 39 detects the unlock position of the lock lever 20, and the child lock detection switch 27 detects the child unlock position of the child lock lever 21. If the outside handle detection switch 24 detects the release operation of the outside lever 14 associated with the operation of the outside handle 10, or the inside handle opening detection switch 25 detects the inside lever associated with the opening operation of the inside handle 11. 15 or when the operation switch 41 is operated to release the release actuator 30 and the front and rear fully closed door latch devices 6 and 7 are unlatched, the electromagnetic clutch of the door opening and closing device 12 is operated. 123 control connection, open The motor 121 rotates forward control, thereby opening movement of the door 1 to the fully open position by the force of the opening and closing motor 121.

  The full latch detection switch 42 detects the full latch position of the latch 707, the lock / unlock detection switch 39 detects the lock position of the lock lever 20, and the child lock detection switch 27 detects the child unlock position of the child lock lever 21. In this case, even if the outside handle 10 and the inside handle 11 are opened, the release operation of the outside lever 14 is not transmitted to the fully closed release lever 18, so that the front and rear fully closed door latch devices 6 and 7 are unlatched. It cannot be activated. Therefore, the door 1 cannot be opened. In this state, even if the outside handle detection switch 24 detects the release operation of the outside lever 14 and the inside handle door detection switch 25 detects the opening release operation of the inside lever 15, the locking / unlocking detection switch 39 is locked. Since the state detection signal is input, the opening / closing control of the door opening / closing device 12 is not performed.

  The position detection circuit of the control circuit device 100 detects the fully open position of the door 1, the lock / unlock detection switch 39 detects the unlock position of the lock lever 12, and the child lock detection switch 27 detects the child unlock position of the child lock lever 21. When the outside handle 10 is operated or the inside handle 11 is closed, the fully-open release lever 23 is released to release the fully-open door latch device 8, thereby releasing the door. The 12 electromagnetic clutches 123 are connected and the open / close motor 121 is reversely controlled, and the door 1 is closed to the half latch position by the power of the open / close motor 121. Subsequently, when the half latch detection switch 40 detects the half latch position of the latch, the closer motor 711 of the closer mechanism 71 is driven to close the door 1 from the half latch position to the full latch position.

Next, features of the present invention will be described with reference to FIG.
The position detection circuit of the control circuit device 100 detects the fully open position of the door 1, the lock / unlock detection switch 39 detects the unlock position of the lock lever 20, and the child lock detection switch 27 detects the child unlock position of the child lock lever 21. When the lock lever 20 is detected, the lock lever 20 is switched to the lock position by the manual lock operation of the lock knob or the electric lock operation of the lock / unlock actuator 19, and the lock / unlock detection switch 39 detects the lock position of the lock lever 20 (A shown in FIG. 13). Then, the unlocking actuator 19 is unlocked (time B shown in FIG. 13), and the lock lever 20 is forcibly returned to the unlocked position. As a result, when the door 1 is closed from the half latch position to the full latch position by the closer mechanism 71, the lock lever 20 is always in the unlocked position, and therefore the rear handle is operated by operating the outside handle 10 or opening the inside handle 11. The closing operation can be interrupted by releasing the pawl 708 of the closing door latch device 7 and moving the fail safe lever 72 of the closer mechanism 71 to the cutting position.

  The position detection circuit of the control circuit device 100 detects the fully open position of the door 1, the lock / unlock detection switch 39 detects the unlock position of the lock lever 20, and the child lock detection switch 27 detects the child lock position of the child lock lever 21. If it is detected, the lock lever 20 is switched to the lock position by the manual lock operation of the lock knob or the electric lock operation of the lock / unlock actuator 19, and the lock / unlock detection switch 39 detects the lock position of the lock lever 20 (shown in FIG. 13). Then, at this time, the locking / unlocking actuator 19 is unlocked (time D shown in FIG. 13) and the lock lever 20 is forcibly returned to the unlocking position. As a result, when the door 1 is closed from the half latch position to the full latch position by the closer mechanism 71, the lock lever 20 is always in the unlocked position, and therefore the pawl 708 of the rear fully closed door latch device 7 is operated by operating the outside handle 10. And the closing operation can be interrupted by moving the fail safe lever 72 of the closer mechanism 71 to the cutting position.

  The position detection circuit of the control circuit device 100 detects the half-open position of the door 1, the unlocking detection switch 39 detects the unlocking position of the lock lever 20, and the child lock detection switch 27 is the child unlocking position of the child lock lever 21. When the lock lever 20 is detected, the lock lever 20 is switched from the unlock position to the lock position by the manual lock operation of the lock knob or the electric lock operation of the lock actuator 19, and the lock detection switch 39 detects the lock position of the lock lever 20. (Time E shown in FIG. 13) In this state, when the door 1 moves in the closing direction by driving the door opening and closing device 12, and the speed detection circuit detects a closing speed higher than a predetermined value (time F shown in FIG. 13), At that time, the unlocking actuator 19 is unlocked, and the lock lever 20 is forcibly returned to the unlocked position. Alternatively, when the movement direction detection circuit detects the closing direction of the door 1 regardless of the closing speed of the door 1 with the locking / unlocking detection switch 39 detecting the locking position of the lock lever 20. Thus, the unlocking actuator 19 may be unlocked. Thus, when the door 1 is closed from the half latch position to the full latch position by the closer mechanism 71, the lock lever 20 is always in the unlocked position, so that the rear fully closed door latch device can be operated by operating the outside handle 10 or the inside handle 11. 7, the closing operation can be interrupted by moving the fail-safe lever 72 of the closer mechanism 71 to the cutting position.

  When the closer mechanism 71 is in the closing operation, the lock / unlock detection switch 39 detects the unlock position of the lock lever 20 and the child lock detection switch 27 detects the child lock position of the child lock lever 21. The release actuator 30 is driven and controlled when the handle open detection switch 25 detects the release operation of the inside lever 15 based on the opening operation of the inside handle 11 (time G shown in FIG. 13). As a result, the outside lever 14 rotates in the release direction, and the rotation is transmitted to the release lever 705 via the cable 17, and the fail safe lever 72 and the second closer lever 717 of the closer mechanism 71 are moved to the cutting position. While moving, the open lever 703 is rotated in the release direction. Thus, if the lock lever 20 is in the unlocked position, the closing operation is interrupted not only by the operation of the outside handle 10 but also by the opening operation of the inside handle 11 even if the child lock lever 21 is in the child locking position. The door 1 can be opened by releasing the front and rear fully closed door latch devices 6 and 7.

  Further, in addition to this embodiment, after the locking and unlocking actuator 19 is forcibly released in the open state of the door 1, the closing operation of the closer mechanism 71 is completed, and the fully closed position of the door 1 is detected (full latch When the detection switch 42 is fully latched or the like), the locking / unlocking actuator 19 may be locked to displace the lock lever 20 to the locking position.

1 door 2 vehicle body 2a striker 3, 4, 5 guide rail 6 front fully closed door latch device 7 rear fully closed door latch device 8 fully open door latch device 9 relay operating device 10 outside handle 11 inside handle 12 door opening and closing device 13 base plate 14 outside Lever 15 Inside lever 16 Cable 17 Cable (connecting means)
18 Fully closed release lever 19 Locking / unlocking actuator 20 Lock lever 21 Child lock lever 21a Operation part 22 Cable 23 Fully open release lever 24 Outside handle detection switch 25 Inside handle door detection switch 26 Inside handle door detection switch 27 Child lock detection switch 28 Pivot 29 cable 30 release actuator 31 cable 32 pivot 33 link 34 coupling shaft 35 coupling shaft 36 pivot 37 engagement / disengagement pin 38 pivot 39 locking / unlocking detection switch 40 half latch detection switch 41 operation switch 42 full latch detection switch 61 release lever 70 latch mechanism 71 Closer mechanism 72 Fail-safe lever 73 Axis 100 Control circuit device 121 Opening / closing motor 122 Power transmission cable 123 Electromagnetic clutch H 124 Rotation sensor 141 First connection hole 142 Second connection hole 143 Engagement piece 144 Long hole 145 Long hole 151 Contact portion 181 Long hole 191 Output lever 201 Long hole 211 Engagement / disengagement pin 701 Base 702 Pivot 703 Open lever 704 Pivot 705 Release lever (connecting means)
707 Latch 708 Pole 711 Closer motor 712 Pivot 713 Drive lever 713a Push part 714 Pivot 715 First closer lever 715a Bent part 716 Connection shaft 717 Second closer lever 717a Claw part 717b Connection pin 718 Latch axis 719 Latch lever 719a Step part 721 Long hole

Claims (4)

A closer mechanism for moving the door from a half-latch position to a full-latch position, a latch mechanism for holding the door in the full-latch position, an outside lever that is released by operation of an outside handle provided outside the door, and Fully closed release linked by connecting means to an inside lever that is released by operation of an inside handle provided inside the door of the door, and a fail safe lever that cuts off the linkage of the opening lever of the latch mechanism and the closing operation of the closer mechanism lever and, unlocking position can be transmitted to the release operation of the outside lever in the fully closed release lever, and the a lock lever which can be switched to a locked position impossible transmitted to the lock lever from the locked position solutions Switch to lock position by electrical drive source And an unlocking actuator capable,
There the door is opened, in response to said lock lever is switched to the locked position from the unlocked position, the switching of the lock lever in the unlocking actuator to the unlocking position from the locked position And performing a release operation of the fully-closed release lever by operating the outside handle or an inside handle during the closing operation of the closer mechanism to release the open lever of the latch mechanism, and the fail-safe lever. The vehicle door latch system characterized by cutting and operating. Furthermore, a child lock lever that can be switched between a child unlocking position that can transmit the release operation of the inside lever to the outside lever and a child locking position that cannot be transmitted to the outside lever,
In the locking lever is the unlocking position, the child when the lock lever is in the child unlock position, wherein by releasing operation of said full close release lever by the operation of the inside handle be released operating the inside lever latch The release lever of the mechanism can be operated to release, and the failsafe lever can be operated to cut,
Also, the when the lock lever is in the unlocked position, the by releasing operation of fully closing the release lever by the to releasing operation of the outside lever by operating the relationship without the outside handle to the position of the child lock lever The vehicle door latch system according to claim 1, wherein the open lever of the latch mechanism is operated to be released and the failsafe lever is operated to be cut. Furthermore, a fully open release lever that is linked to a fully open door latch device that holds the door in a fully open position and that operates to release in conjunction with the operation of the outside handle and the operation of the inside handle,
If the door by the fully opened door latch device is held in the fully open position, the unlocking said lock lever in the unlocking actuator when said locking lever is switched to the locked position from the unlocked position from the locked position The vehicle door latch system according to claim 1, wherein the vehicle door latch system is switched to a position. Furthermore, a door opening and closing device capable of automatically opening and closing the door, and a release actuator that releases the outside lever by an electric drive source,
The door is in the open state, in a state in which the lock lever is switched to the locked position from the unlocked position, when the closing speed of the door by the driving of the door lock device has been detected a predetermined amount or more, the locking and unlocking actuator vehicle door latch system according to claim 1, characterized in that switching to the unlocked position from the locked position to the lock lever by driving.

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