JP2018115518A - Closer device and door lock device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a closer device and a door lock device for a vehicle that hardly cause a closing action to be disabled.SOLUTION: An ECU composing a closer device is to drive an actuator to return a driving gear to a predetermined set position after a striker and a latch are securely engaged. When the ECU determines, through a half clutch SW and an original position SW, that the latch is positioned at a half engagement position with the striker and that the driving gear is at the predetermined set position, the ECU drives the actuator to return before driving engaging the actuator so as to securely engage the latch and the striker.SELECTED DRAWING: Figure 21

Description

  The present invention relates to a closer device and a vehicle door lock device.

  Usually, a door lock device for a vehicle includes a striker at one of the vehicle door and the vehicle opening, and a latch at the other. The striker and the latch are engaged with each other by moving relative to the opening / closing operation of the vehicle door.

  The door lock device of Patent Document 1 transfers the driving force of the actuator to the latch through the sector gear so as to restrain the striker relative to the latch so as not to move relative to the latch, thereby shifting the latch from the half latch state to the full latch state. A closer device for performing a so-called closing operation is provided.

Japanese Utility Model Publication No. 6-67775

  The closer device of Patent Document 1 performs a closing operation when the half-latch state of the latch is detected, but the sector gear is not at the start position for shifting the latch from the half-latch state to the latched state due to a foreign object biting or the like. In this case, the closing operation cannot be performed. As a result, the vehicle door cannot be shifted to the fully closed state.

  An object of the present invention is to provide a closer device and a vehicle door lock device that are difficult to close.

  In order to solve the above problems, the closer device detects a rotation position of the drive gear, a drive gear that rotates as the actuator is driven, a latch mechanism that transmits the rotation of the drive gear to a latch that can be engaged with and disengaged from the striker. A control unit that controls driving of the actuator according to a detection result of the gear detection unit and the latch detection unit. The unit drives the actuator to return to return the drive gear to a preset position after the previous striker and the latch are completely engaged, and the gear detection unit and the gear Through the latch detection unit, the latch is located at a position where it is half-engaged with the striker, and the drive gear is located at a preset position. If it is determined that there is no, before the actuator is driven engageable to said latch and the striker are fully engaged, and summarized in that for the return drive the actuator.

  According to this configuration, when the latch has not returned to the set position due to, for example, foreign matter or the like entering the latch mechanism, the actuator is driven to return again. When the return drive timing is different, the factor that the latch cannot return to the set position at the time of the previous return drive may be eliminated by the vibration of the application target of the closer device. In this way, it is possible to provide a closer device that is unlikely to be closed by simply adding processing in the control unit. Since only the processing in the control unit is added, there is an effect of suppressing an increase in cost.

  In the above configuration, it is preferable that the rotation direction of the drive gear when the actuator is driven to engage and the rotation direction of the drive gear when the actuator is driven to return are opposite to each other.

  When the rotation direction of the drive gear at the time of engagement drive is different from the rotation direction of the drive gear at the time of return drive as in this configuration, the rotation direction of each component of the latch mechanism is also different from that at the time of engagement drive and return drive. Therefore, even if foreign matter is caught in the latch mechanism, there is a high possibility that this will be solved.

  The closer device configured as described above shifts the opening / closing body to be applied to a fully closed state when the latch shifts from the half-engagement to the full-engagement with the striker, and the control unit includes the latch After detecting that the latch is located at a position half-engaged with the striker through the detection unit, the actuator may be driven after a first set time set in advance to ensure safety. preferable.

  According to this configuration, since the time until the opening / closing body shifts from the incompletely closed state to the fully closed state is secured for the first set time, a foreign object such as a human body is sandwiched between the opening / closing body. It's hard to get it.

  In the above configuration, a relay that switches a contact state to switch between the engagement drive and the return drive of the actuator, and the control unit has passed a relay protection time that is set to a time sufficient for contact protection. After that, it is preferable to switch between a contact state in which the engagement drive is performed and a contact state in which the return drive is performed.

According to this configuration, the malfunction in the relay is suppressed, and as a result, the closing operation of the closer device is not easily disabled.
In order to solve the above problems, a vehicle door lock device includes the closer device described above.

  In the closer device and the vehicle door lock device of the present invention, it is difficult for the closing operation to be disabled.

The perspective view which shows schematic structure of a door lock apparatus. The perspective view which shows schematic structure of a door lock apparatus. The top view which shows schematic structure of a door lock apparatus. The schematic structure of a latch mechanism, and operation | movement explanatory drawing (unlatching state). The schematic structure of a latch mechanism and operation | movement explanatory drawing (at the time of striker approach). Schematic configuration and operation explanatory diagram of the latch mechanism (half latch state). Schematic configuration and operation explanatory diagram of the latch mechanism (at the time of closing operation). Schematic configuration and operation explanatory diagram of the latch mechanism (full latch state). Schematic configuration and operation explanatory diagram of the latch mechanism (at the time of release operation). Schematic configuration and operation explanatory diagram of the latch mechanism (release completion state). Schematic configuration and operation explanatory diagram of the closer device (half-latch state: before closing operation). Schematic structure and operation explanatory diagram of the closer device (at the time of closing operation: meshing start). Schematic configuration and operation explanatory diagram of the closer device (at the time of closing operation: latch lever rotation). The top view which shows the 1st drive gear and 2nd drive gear in a meshing start position. Schematic configuration and operation explanatory diagram of the closer device (full latch state: closing operation completed). Schematic structure and operation explanatory diagram of the closer device (full latch state: initial position return). Schematic configuration and operation explanatory diagram of the closer device (full latch state: before release operation). Schematic structure and operation explanatory diagram of the closer device (at the time of release operation: lever contact). Schematic configuration and operation explanatory diagram of the closer device (unlatched state: release operation complete). The block diagram which shows the electric constitution of a closer apparatus. The flowchart which shows the process sequence of ECU.

Hereinafter, an embodiment of a vehicle door lock device including an ECU as a control unit of the closer device will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the vehicle door lock device 1 includes a latch mechanism 20 that engages with a striker 10 that relatively moves in accordance with an opening / closing operation of a vehicle door (not shown), and a relative position of the engaged striker 10. And a closer device 30 that shifts the latch mechanism 20 from the half-latch state to the full-latch state in order to restrain it from moving.

  In addition, the door lock device 1 of this embodiment is provided in the back door of the vehicle which is not shown in figure. And by restricting the striker 10 provided at the rear opening of the vehicle so as not to be relatively movable, the back door can be held in a fully closed state.

  More specifically, the door lock device 1 of this embodiment includes a base plate 42 having a striker input / output part 41. The latch mechanism 20 includes a latch 43 that engages with the striker 10 that has entered the striker entry / exit 41 and a pole 44 that engages with the striker 10.

  Specifically, the base plate 42 has a base portion 42a formed in a substantially flat plate shape. Note that the base plate 42 of the present embodiment is formed by plastic processing (pressing) a plate material. The striker entry / exit portion 41 is provided in a shape in which one end of the base portion 42a is cut out in a slit shape.

  Further, on the base portion 42a of the base plate 42, two support shafts 45 and 46 are erected in such a manner that the striker insertion / extraction portion 41 is sandwiched in the groove width direction (left and right direction in FIGS. 1 and 3). Yes. In the present embodiment, the support shafts 45 and 46 are provided so as to be rotatable in such a manner that the base end side penetrates the base portion 42 a of the base plate 42. The latch 43 and the pole 44 are configured to rotate integrally with the support shafts 45 and 46 by being fixed to the support shafts 45 and 46, respectively.

  More specifically, as shown in FIGS. 4 to 10, the latch 43 formed in a substantially flat plate is formed with a striker engagement groove 47 that opens to the outer peripheral surface thereof. The latch 43 is urged to rotate counterclockwise in each figure by a latch urging spring (coil spring) (not shown). Further, the latch 43 is brought into contact with a stopper portion (not shown) provided on the base plate 42 so that the latch bias spring of the latch biasing spring is located at a position where the opening end of the striker engagement groove 47 faces the striker input / output portion 41. The rotation based on the urging force is restricted. Then, the latch mechanism 20 of the present embodiment is configured such that the striker 10 that has entered the striker entry / exit portion 41 is engaged with the striker engagement groove 47 of the latch 43.

  On the other hand, the pole 44 is urged to rotate clockwise in each figure by a pole urging spring (torsion coil spring) (not shown). Further, the pawl 44 is provided with an engaging portion 44a that moves in a direction approaching the outer peripheral surface of the latch 43 by rotation based on the biasing force of the pole biasing spring. Further, the pole 44 is configured such that the engaging portion 44 a engages with the outer peripheral surface of the latch 43 in a state where the striker 10 is engaged with the striker engaging groove 47. And the latch mechanism 20 of this embodiment can hold | maintain the state which the striker 10 engages with the striker engaging groove 47 of the latch 43 by this.

  That is, as shown in FIGS. 5 and 6, the striker 10 that has entered the striker entry / exit portion 41 engages with the striker engagement groove 47, thereby pressing the latch 43 and moving inside the striker entry / exit portion 41. It moves relative to the side (from the bottom to the top in each figure). As a result, the latch 43 rotates in the clockwise direction in each figure against the biasing force of the latch biasing spring.

  At this time, the engaging portion 44a of the pawl 44 is apparently slid on the outer peripheral surface of the latch 43 in contact with the latch 43 while being pressed against the outer peripheral surface of the latch 43 based on the biasing force of the pole biasing spring. Move. Then, the latch mechanism 20 of the present embodiment is configured to rotate the latch 43 by engaging the engaging portion 43a on the pole 44 side with the engaging portion 43a on the latch 43 side formed on the outer peripheral surface thereof. Are now regulated.

  Specifically, in the present embodiment, the engaging portion 43a on the latch 43 side is the opening end of the striker engaging groove 47, more specifically, the side that is pressed when the striker 10 is engaged (in each figure). The upper side wall surface is set. Then, the latch mechanism 20 of the present embodiment restricts the rotation in the biasing direction by the latch biasing spring, that is, in the direction in which the striker 10 is discharged from the striker engaging groove 47. 43 is configured to hold the state in which the striker 10 is engaged (half latch state).

  In addition, the door lock device 1 of the present embodiment is configured such that when the latch mechanism 20 is in a half latch state, the closer device 30 is operated to close the latch mechanism 20. ing.

  That is, as shown in FIGS. 7 and 8, the latch mechanism 20 of the present embodiment is driven by the closer device 30, so that the rotation position corresponding to the half latch state (see FIG. 6, the half latch position Ph). The latch 43 is configured to rotate in the closing direction (clockwise direction in each figure) against the biasing force of the latch biasing spring. In addition, the pawl 44 engages with a second engaging portion 43b formed on the peripheral surface of the latch 43, so that the pawl 44 is latched at a position rotated in the closing direction (see FIG. 8, full latch position Pf). The latch 43 is configured to be restricted from rotating based on the urging force of the urging spring. Then, the latch mechanism 20 of the present embodiment is configured to shift to a full latch state in which the striker 10 that engages with the striker engagement groove 47 of the latch 43 is restrained so as not to be relatively movable.

  Furthermore, the door lock device 1 of the present embodiment is configured such that the closer device 30 operates to release the latch mechanism 20 based on, for example, an operation input to an opening operation switch (not shown).

  That is, as shown in FIGS. 9 and 10, the latch mechanism 20 of the present embodiment is driven by the closer device 30 so that the pole 44 resists the biasing force of the pole biasing spring in each figure. , It is configured to rotate counterclockwise (release position Pr). Further, the latch 43 is thereby released from the rotation restriction due to the engagement with the pawl 44, so that the latch 43 rotates in the anti-close direction based on the urging force of the latch urging spring (in FIG. Clockwise). Then, the latch mechanism 20 according to the present embodiment releases the restraint of the striker 10 and discharges the striker 10 from the striker engagement groove 47 so as to return to the unlocked state as shown in FIG. It is configured.

(Closer device)
Next, the closer device 30 provided in the door lock device 1 of the present embodiment will be described.

  As shown in FIGS. 1 to 3, the closer device 30 of the present embodiment includes an actuator 51 that uses a close motor 50 as a drive source, and a speed reduction mechanism 52 that decelerates the rotation of the actuator 51.

  Specifically, the door lock device 1 of the present embodiment is erected on the base portion 42a of the base plate 42 together with the support shafts 45 and 46 of the latch 43 and the pole 44 constituting the lock member of the latch mechanism 20 as described above. Two support shafts 55 and 56 are provided. In the present embodiment, the base end portions of the support shafts 55 and 56 are fixed so as not to rotate relative to the base portion 42a of the base plate 42. Further, reduction gears (61, 62) are pivotally supported on the support shafts 55, 56, respectively. In the speed reduction mechanism 52 of the present embodiment, the output gear (not shown, pinion or worm) of the actuator 51 is meshed with the first speed reduction gear 61 side supported by the support shaft 55. .

  Specifically, in the present embodiment, a pinion gear 63 that rotates integrally with the first reduction gear 61 is supported on the support shaft 55. In the present embodiment, the pinion gear 63 is integrally formed with the first reduction gear 61 together with the spacer 64 interposed therebetween. The second reduction gear 62 is supported by the support shaft 56 in a state where the second reduction gear 62 meshes with the pinion gear 63. The reduction mechanism 52 of the present embodiment is based on the gear ratio between the output gear of the actuator 51 (not shown) and the first reduction gear 61 and the gear ratio between the pinion gear 63 and the second reduction gear 62. The rotation of the actuator 51 is decelerated.

  In addition, the closer device 30 of the present embodiment includes a first drive gear 71 driven by the actuator 51 via the speed reduction mechanism 52 and a second drive gear 72 that rotates by meshing with the first drive gear 71. I have. In the present embodiment, the first drive gear 71 is formed integrally with the second reduction gear 62 that constitutes the final gear of the reduction mechanism 52. The second drive gear 72 is formed integrally with a latch lever 73 that is pivotally supported by the support shaft 45 of the latch 43.

  Specifically, the latch lever 73 of this embodiment includes a connecting portion 73 a that has a substantially flat outer shape and is arranged in parallel with the latch 43 by being pivotally supported by the support shaft 45. A plurality of gear teeth 74 arranged in the circumferential direction are formed at the peripheral edge of the connecting portion 73a. Thus, the latch lever 73 of the present embodiment is configured such that the connecting portion 73a and the sector gear 75 functioning as the second drive gear 72 are integrally formed.

  Further, the latch lever 73 includes a lever portion 73b extending from the peripheral portion of the connecting portion 73a to the latch 43 side along the extending direction of the support shaft 45. The latch 43 of this embodiment is provided with an engaging portion 43d for the lever portion 73b.

  That is, the latch lever 73 rotates when the driving force of the actuator 51 is transmitted through the first driving gear 71 that meshes with the second driving gear 72. The closer device 30 of the present embodiment is configured to cause the latch mechanism 20 to close by rotating the latch 43 with the latch lever 73.

  More specifically, as shown in FIGS. 11 to 16, the first drive gear 71 of the present embodiment has a sector gear 77 that meshes with the second drive gear 72 in the circumferential range where the gear teeth 76 are formed. Is used. The initial position P0 of the first drive gear 71 is set to a rotational position that does not mesh with the second drive gear 72.

  That is, the closer device 30 according to the present embodiment is configured such that the torque transmission path of the actuator 51 is disconnected between the first drive gear 71 and the second drive gear 72 in the normal state when in the standby state. Has been. Thus, by allowing the latch 43 to freely rotate, the smooth operation of the latch mechanism 20 is ensured. Specifically, the transition from the unlatched state to the half latched state and the transition from the full latched state to the unlatched state are smoothly performed.

  Further, as shown in FIGS. 11 to 13, the closer device 30 of the present embodiment has its speed reduction mechanism 52 during the closing operation after the latch mechanism 20 shifts to the half-latch state due to the engagement of the striker 10 with the latch 43. The second reduction gear 62 constituting the final gear is configured to rotate in the counterclockwise direction (first direction) in each drawing. That is, when the first drive gear 71 rotates integrally with the second reduction gear 62 and shifts from a state where it does not mesh with the second drive gear to a state where it meshes with the second drive gear 72, the closing operation is performed. The torque transmission path of the actuator 51 is established. In the closer device 30 of this embodiment, the latch lever 73 formed integrally with the second drive gear 72 is closed in the closing direction (in the drawings) based on the drive force transmitted to the second drive gear 72. (Clockwise direction).

  Here, as shown in FIG. 12 and FIG. 14, the first drive gear 71 and the second drive gear 72 of the present embodiment have the gear tooth intervals α1 and β1 at the portions where the meshing thereof is started, respectively. It is set wider than the gear tooth intervals α0, β0 of other portions. Specifically, the sector gear 77 constituting the first drive gear 71 has a second gear tooth 76b and a third gear between the first gear tooth 76a and the second gear tooth 76b constituting the meshing start end. It has a gear shape that is wider than between the teeth 76c and between the gear teeth 76c to 76e thereafter. Similarly, the sector gear 75 constituting the second drive gear 72 also has a second gear tooth 74b and a third gear tooth between the first gear tooth 74a and the second gear tooth 74b constituting the meshing start end. 74c, and a gear shape that is wider than that between the gear teeth 74c to 74e thereafter. Thus, the closer device 30 of the present embodiment is configured so that the gear teeth 74 and 76 do not interfere with each other when the meshing between the first drive gear 71 and the second drive gear 72 is started. Yes.

  Further, the latch lever 73 of the present embodiment is provided so as to be rotatable relative to the support shaft 45 of the latch 43. Then, the closer device 30 of the present embodiment has its latch lever at the rotation position (engagement start position P1) where the engagement of the first drive gear 71 with the second drive gear 72 is started as shown in FIG. The lever portion 73 b of 73 is configured not to engage with the engaging portion 43 d of the latch 43.

  Specifically, the latch lever 73 of the present embodiment is configured such that a lever portion 73 b extending in the extending direction of the support shaft 45 is disposed on the radially outer side of the latch 43. Further, the engaging portion 43 d of the latch 43 is provided so as to protrude radially outward from the peripheral portion of the latch 43. As shown in FIG. 12, when the first drive gear 71 is in the engagement start position P1, the closer device 30 of the present embodiment includes a lever portion 73b that constitutes an engagement portion on the latch lever 73 side, and A gap X in the circumferential direction is formed between the engaging portion 43d on the latch 43 side.

  That is, in the closer device 30 of the present embodiment, when the first drive gear 71 and the second drive gear 72 are engaged with each other, the presence of the gap X causes the latch lever 73 formed integrally with the second drive gear 72. The lever portion 73b runs idle without engaging with the engaging portion 43d of the latch 43.

  Specifically, as shown in FIG. 13, the gap X is a rotational position where the first drive gear 71 and the second drive gear 72 are engaged with each other by a plurality of gear teeth 74 and 76 (see FIG. 13). It disappears at the mesh establishment position P2). That is, the lever portion 73 b of the latch lever 73 that runs idle is set to abut on the engaging portion 43 d of the latch 43. Further, the lever portion 73b of the latch lever 73 that contacts the engaging portion 43d of the latch 43 presses the engaging portion 43d of the latch 43 in the circumferential direction. Thus, the closer device 30 of the present embodiment causes the latch 43 to be released by the driving force of the actuator 51 in a state where the stable engagement between the first driving gear 71 and the second driving gear 72 is established. It can be rotated in the closing direction.

  Further, as shown in FIGS. 15 and 16, the closer device 30 of the present embodiment has its second state when the latch mechanism 20 is in a fully latched state, that is, when the closing operation of the latch mechanism 20 is completed. The rotation direction of the reduction gear 62 and the first drive gear 71 is configured to be reversed (rotation in the clockwise direction in the figure). As a result, the rotation position of the first drive gear 71 is shifted from the close completion position P3 (see FIG. 15) where the closing operation of the latch mechanism 20 is completed to the initial position P0 (FIG. 16) that does not mesh with the second drive gear 72. The closing operation is terminated by returning to (see).

  That is, in the full latch state, the rotation of the latch 43 based on the biasing force of the latch biasing spring is restricted based on the engagement relationship with the pawl 44 (see FIG. 8). The lever portion 73b of the latch lever 73 is configured to press the engaging portion 43d of the latch 43 only when the latch lever 73 rotates in the closing direction. The door lock device 1 according to the present embodiment thus allows the latch lever 73 to rotate in the anti-close direction (counterclockwise direction in the figure) as the first drive gear 71 rotates in the reverse direction. Also, the latch mechanism 20 is held in a fully latched state.

  Further, as shown in FIGS. 2, 3, and 14, the latch lever 73 of the present embodiment is rotationally biased in the anti-close direction based on the biasing force of the lever biasing spring 78 (torsion coil spring). ing. Specifically, the closer device 30 of the present embodiment is configured to hold the housing 79 on the base portion 42 a of the base plate 42. Each urging spring (for latch and for pole) including the lever urging spring 78 is held by the housing 79.

  Further, in the present embodiment, the housing 79 is provided with a stopper portion 80 that restricts the rotation of the latch lever 73 by contacting the latch lever 73 biased by the lever biasing spring 78. . Then, the closer device 30 of the present embodiment is configured so that when the first drive gear 71 and the second drive gear 72 are not engaged with each other, the meshing start end (first One gear tooth 74a) is held at a predetermined meshing start position P1 ′.

  As shown in FIGS. 1, 2, and 17 to 19, the closer device 30 of the present embodiment includes a pressing pin 81 that rotates integrally with the first drive gear 71, and presses against the pressing pin 81. And an open lever 82 that rotates by being operated.

  The pressing pin 81 of the present embodiment has an axial shape extending along the extending direction of the support shaft 56 and is fixed to the second reduction gear 62. The open lever 82 is pivotally supported on the support shaft 56 of the second reduction gear 62. Further, in the present embodiment, the pressing pin 81 and the open lever 82 are opposite to the sector gear 77 constituting the first drive gear 71 in the extending direction of the support shaft 56, that is, in FIG. 1 and FIG. It is arranged above the reduction gear 62. The closer device 30 according to the present embodiment has a second direction opposite to the first direction in which the first drive gear 71 and the second drive gear 72 mesh with each other during the closing operation (clockwise in FIGS. 17 to 19). When the second reduction gear 62 rotates in the direction), the pressing pin 81 as the pressing member presses the open lever 82.

  Specifically, the open lever 82 has a substantially L-shaped plate shape whose base end side is pivotally supported by the support shaft 56. Note that the open lever 82 of the present embodiment is formed by plastic processing (press processing) of a plate material. Further, a pressing portion 82a is formed at the tip portion of the open lever 82 by bending. The contact portion 82b with the pressing pin 81 has an arc shape that is curved in accordance with the axial shape (cylindrical shape) of the pressing pin 81.

  In the present embodiment, the support shaft 46 of the pole 44 is provided with a lift lever 84 that rotates integrally with the pole 44. The lift lever 84 of the present embodiment has a substantially L-shaped lever body 84a that is fixed to the support shaft 46 so that the tip side extends along the axial direction of the support shaft 46, and the side of the lever body 84a. An abutting portion 84b extending in the direction. The lift lever 84 is also formed by plastic working (pressing) a plate material. The closer device 30 of the present embodiment is configured to release the latch mechanism 20 by the pressing portion 82a of the open lever 82 pressing the contact portion 84b of the lift lever 84 and rotating the pole 44. It has become.

  More specifically, as shown in FIGS. 17 to 19, the pressing pin 81 of this embodiment is a position where the support shaft 56 is sandwiched between the first gear teeth 74 a of the sector gear 77 constituting the first drive gear 71. That is, it is fixed to the second reduction gear 62 at a position separated by approximately 180 ° in the circumferential direction. The initial position P0 ′ of the pressing pin 81 is set to a rotation position that does not come into contact with the open lever 82 pivotally supported by the support shaft 56 of the second reduction gear 62.

  That is, the closer device 30 of the present embodiment is in a state in which the torque transmission path of the actuator 51 is disconnected between the pressing pin 81 and the open lever 82 in the normal state (see FIG. 11) in the standby state. It is configured as follows. Thus, by allowing the pawl 44 to freely rotate, the smooth operation of the latch mechanism 20 is ensured.

  Further, the closer device 30 of the present embodiment has a second reduction gear 62 that constitutes the final gear of the reduction mechanism 52 during a release operation based on an opening operation request such as an operation input to an opening operation switch (not shown). It is configured to rotate in the second direction (counterclockwise direction in each figure). Then, as shown in FIG. 18, the pressing pin 81 of the present embodiment thereby rotates integrally with the second reduction gear 62 together with the first drive gear 71, thereby contacting the contact portion 82 b of the open lever 82. It comes into contact (contact position P4).

  That is, in the present embodiment, the torque transmission path of the actuator 51 during the release operation is established by shifting the pressing pin 81 to the open lever 82 and pressing the open lever 82 in this manner. . Then, as shown in FIG. 19, the closer device 30 of the present embodiment is configured so that the open lever 82 that rotates integrally with the pressing pin 81 presses the lift lever 84, thereby the support device 56 via the support shaft 56. The pole 44 connected to the lift lever 84 is configured to rotate in a direction away from the latch 43 (release direction, counterclockwise direction in the figure).

  Further, in the closer device 30 of the present embodiment, when the latch mechanism 20 is unlatched by releasing the engagement between the latch 43 and the pawl 44, that is, when the release operation of the latch mechanism 20 is completed. Is configured such that the rotation direction of the second reduction gear 62 and the pressing pin 81 is reversed (rotation in the counterclockwise direction in the figure). Then, similarly to the above-described closing operation, the rotation position of the pressing pin 81 is returned from the release completion position P5 where the release operation of the latch mechanism 20 is completed to the initial position P0 ′, so that the release operation is performed. It is configured to end.

  As shown in FIGS. 2 and 3, the open lever 82 of this embodiment is rotationally biased by the biasing force of the torsion coil spring 85 that is fitted into the support shaft 56. Further, the open lever 82 is in contact with a stopper (not shown) so that the rotation based on the urging force of the torsion coil spring 85 is restricted. And the closer apparatus 30 of this embodiment is comprised so that the contact position P4 (refer FIG. 18) of the press pin 81 with respect to the open lever 82 may become fixed by this.

More specifically, as shown in FIG. 1, the closer device 30 of the present embodiment includes an ECU 90 that supplies driving power to the closing motor 50 of the actuator 51.
The ECU 90 of the present embodiment is in the half latch SW 91 that detects that the rotation position of the latch 43 is in the half latch position Ph corresponding to the half latch state (see FIG. 6), and in the full latch position Pf that corresponds to the full latch state. (See FIG. 8), that is, connected to the courtesy SW 92 that detects the open / closed state of the vehicle door.

  Further, the ECU 90 is connected to the original position SW93 that detects that the rotation position of the latch lever 73 is the original position Pm that does not affect the rotation of the latch 43 (see FIG. 11). The original position of the latch lever 73 is defined as a position where the latch lever 73, in particular, the lever portion 73b is not located on the rotation locus of the engaging portion 43d of the latch 43.

  In addition, a release signal indicating that the restraint of the striker 10 by the latch mechanism 20 should be released is input to the ECU 90, for example, when an opening operation switch (not shown) is operated.

  The ECU 90 of the present embodiment is configured to control the rotation of the close motor 50 that supplies the driving power, that is, the operation of the actuator 51, based on the output signals of these switches.

  More specifically, as shown in FIG. 20, the ECU 90 includes an input / output circuit to which battery power + B is input, an input / output power supply circuit, a wakeup input circuit, an input circuit, an output circuit, and a microcomputer 96. The output circuit has a relay 97 for switching the power supply path to the close motor 50. When the microcomputer 96 switches the contact state of the relay 97, the driving direction of the close motor 50 is switched.

  Next, a processing procedure of the ECU 90 when it is detected that a vehicle door (not shown) is closed and the latch 43 is located at the half latch position Ph will be described. In this example, when the half latch SW 91 is ON, the latch 43 is not located at the half latch position Ph. When the half latch SW 91 is OFF, the latch 43 is at the half latch position Ph. It is located at. When the original position SW93 is ON, the latch lever 73 is not located at the original position Pm. When the original position SW93 is OFF, the latch lever 73 is located at the original position Pm. Indicates. Further, when the courtesy SW 92 is ON, the vehicle door (not shown) is open (not fully closed), and when the courtesy SW 92 is OFF, the vehicle door (not shown) is closed. (It is in the fully closed state).

  As shown in FIG. 21, when the process starts with the half latch SW 91 being switched from ON to OFF as a trigger, the ECU 90 counts the closer delay time (step S <b> 1), and then the original position SW 93 is OFF. Whether or not (step S2).

  If YES in step S2, that is, if the original position SW93 is OFF, the ECU 90 drives the close motor 50 to rotate forward (step S3), and then determines whether the half latch SW91 is switched from OFF to ON (step S3). S4).

  If YES in step S4, that is, if the half latch SW 91 is switched from OFF to ON, the ECU 90 stops the close motor 50 (step S5) and counts the relay protection time (step S6).

  Note that the latch lever 73 rotates clockwise by the forward rotation of the close motor 50. Along with this, the latch 43 moves with the latch lever 73 and rotates clockwise, thereby pulling the striker 10 (close operation). As a result, the vehicle door is shifted from the half door state to the fully closed state. Further, when the half latch SW 91 is switched from OFF to ON, the original position SW 93 is inevitably switched from OFF to ON.

Next, the ECU 90 drives the close motor 50 in reverse (step S7), and then determines whether or not the original position SW93 has been switched from ON to OFF (step S8).
If YES in step S8, that is, if the original position SW93 is switched from ON to OFF, the ECU 90 stops the close motor 50 (step S9) and ends a series of processes.

Note that if NO in step S4, that is, if the half latch SW 91 does not switch from OFF to ON, the ECU 90 proceeds to step S2.
If NO in step S8, that is, if the original position SW93 is not switched from ON to OFF, the ECU 90 proceeds to step S7.

  Note that if NO in step S2, that is, if the original position SW93 is ON, the ECU 90 drives the close motor 50 in reverse (step S10), and then determines whether the original position SW93 has been switched from ON to OFF. (Step S11).

  If YES in step S11, that is, if the original position SW93 is switched from ON to OFF, the ECU 90 stops the close motor 50 (step S12), counts the relay protection time (step S13), and then performs the process in step S3. Migrate to

If NO in step S11, that is, if the original position SW93 is not switched from ON to OFF, the ECU 90 proceeds to step S10.
Next, the effect of the door lock device by adopting the ECU 90 will be described.

  As shown in the processing procedure of the ECU 90, after the vehicle door shifts from the half door to the fully closed state, the ECU 90 rotates the close motor 50 in reverse (step S7) and returns the latch lever 73 to the original position Pm. I am letting.

  Now, even if the half latch SW91 is switched from ON to OFF, the ECU 90 of this example drives the close motor 50 in the reverse direction when the original position SW93 is ON (NO in step S1) (processing in step S10). .

  As described above, when the latch lever 73 has not returned to the original position Pm due to, for example, foreign matter or the like entering the latch mechanism 20, the actuator 51 (close motor 50) is driven to return again. For this reason, the timing at which the actuator is driven to return is different, so that the factor that the latch lever 73 cannot return to the original position Pm at the time of the previous return drive may be eliminated by vibration of the vehicle or the like. In this manner, the closer device 30 that does not easily disable the closing operation can be provided simply by changing the processing in the ECU 90. Since only the process in the ECU 90 is changed, there is an effect of suppressing an increase in cost as the door lock device 1 for a vehicle.

  Further, since the rotation direction of each component of the latch mechanism 20 is reversed between when the close motor 50 is driven forward (engagement drive) and when it is driven reversely (return drive), the foreign matter in the latch mechanism 20 There is a high possibility that this will be resolved even if a bite is bitten.

  Further, the ECU 90 is configured to count the closer delay time (step S1) before the close motor 50 is driven to rotate forward (before step S3). That is, since the closer delay time is ensured before the transition from the half door state to the fully closed state, foreign objects such as a human body are not easily caught in the vehicle door.

  Further, the ECU 90 switches the close motor 50 from the normal rotation drive to the reverse rotation drive (between step S3 and step S7) or switches the close motor 50 from the reverse rotation drive to the normal rotation drive (step S10 and step S3). The relay protection time is counted (steps S6 and S13). Thereby, the malfunction in the relay 97 is suppressed, and consequently, the closing operation of the closer device 30 is not easily disabled.

In addition, you may change the said embodiment as follows.
-Although the said embodiment was actualized in the door lock apparatus 1 provided in the back door of the vehicle, you may apply to the door lock apparatus used for another door.

  In the above embodiment, the first drive gear 71 is driven by the actuator 51 via the speed reduction mechanism 52, but the torque transmission path from the actuator 51 to the first drive gear 71 can be arbitrarily changed. Good.

  In the above embodiment, the second drive gear 72 rotates the latch 43 based on the drive force of the actuator 51 transmitted by meshing with the first drive gear 71. The structure which rotates the pole 44 may be sufficient.

  In the above embodiment, the pressing pin 81 having an axial shape is used as the pressing member, but the shape of the pressing member may be arbitrarily changed. The shapes of the open lever 82 as the lever member and the lift lever 84 provided on the support shaft 46 of the pole 44 may also be arbitrarily changed.

-As for each structure of the door lock apparatus 1 in the said embodiment, if the rotation aspect of the latch 43 is ensured, a shape etc. may be changed suitably.
-In above-mentioned embodiment, ECU90 may abbreviate | omit the process of step S1, S6, S13 among the processes shown in FIG. 21, ie, the closer delay time and the count of relay protection time, suitably.

  In the above embodiment, the electrical configuration of the ECU 90 shown in FIG. 20 is an example, and may be changed as appropriate.

DESCRIPTION OF SYMBOLS 1 ... Door lock device, 10 ... Striker, 20 ... Latch mechanism, 30 ... Closer device, 50 ... Close motor, 51 ... Actuator, 52 ... Reduction mechanism, 61 ... First reduction gear, 62 ... Second reduction gear, 71 ... 1st drive gear 72 ... 2nd drive gear 73 ... Latch lever (lever member), 75 ... Sector gear, 77 ... Sector gear, 90 ... ECU, 91 ... Half latch SW, 92 ... Courtesy SW, 93 ... Original position SW, 96 ... microcomputer, 97 ... relay.

Claims (5)

A drive gear that rotates as the actuator is driven;
A latch mechanism that transmits the rotation of the drive gear to a latch that can be engaged with and disengaged from the striker;
A gear detector for detecting the rotational position of the drive gear;
A latch detector for detecting the rotational position of the latch;
A control unit that controls driving of the actuator according to detection results of the gear detection unit and the latch detection unit,
The control unit drives the actuator to return to return the drive gear to a preset position after the previous striker and the latch are completely engaged, and the gear detection unit When the latch is located at a position where the latch is half-engaged with the striker and the drive gear is not located at a preset setting position, the latch and the striker are completely A closer device that drives the actuator to return before engaging and driving the actuator to engage. The closer device according to claim 1,
A closer device in which a rotation direction of the drive gear when the actuator is driven to engage and a rotation direction of the drive gear when the actuator is driven to return are opposite to each other. The closer device according to claim 1 or 2, wherein the latch is moved from the half-engagement to the full-engagement with the striker, so that the opening / closing body to be applied is moved to a fully closed state.
The control unit, after detecting that the latch is located at a position half-engaged with the striker through the latch detection unit, passes a first set time set in advance to ensure safety. A closer device for driving the actuator. In the closer apparatus as described in any one of Claims 1-3,
A relay that switches a contact state to switch between the engagement drive and the return drive of the actuator;
The said control part is a closer apparatus which switches the contact state which makes the said engagement drive, and the contact state which makes the said return drive, after the relay protection time set to time sufficient for contact protection passes. The vehicle door lock device provided with the closer apparatus as described in any one of Claims 1-4.

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