JP2016069986A - Closer device and door lock device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a closer device capable of making a latch mechanism further smoothly execute close operation and release operation, with a simple constitution.SOLUTION: A closer device 30 comprises an active lever 61 as a lever member for making a latch mechanism 20 execute close operation and release operation in response to the rotational direction and an actuator for rotating this active lever 61 by motor driving. The closer device 30 also comprises a coil spring 70 as an energization member having a rotary fulcrum X1 in a first end part 70a, having a connection point X2 with the active lever 61 in a second end part 70b and rotatably energizing the active lever 61. The closer device 30 is constituted so that the active lever 61 is held in a rotary position for reversing the energization direction by its coil spring 70 in normal time of becoming a standby state.SELECTED DRAWING: Figure 10

Description

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

  Usually, the door lock device for vehicles is provided with the latch mechanism engaged with the striker which moves relatively with opening / closing operation | movement of a vehicle door. In such a door lock device, an actuator is used for a closing operation in which the latch mechanism shifts from a half-latch state to a full-latch state in order to restrain the engaged striker so as not to be relatively movable, and a release operation for releasing the restriction. There is a thing performed by a closer device provided with.

  For example, the closer device described in Patent Document 1 includes a lever member that rotates by being driven by an actuator to close the latch mechanism. Further, the closer device is provided with a biasing member for biasing the lever member in the closing direction. By using the biasing force, it is possible to close the latch mechanism more quickly while reducing the size of the actuator.

JP 2012-149471 A JP 2002-250162 A

  However, in the one-way urging structure as seen in the above prior art, for example, as shown in Patent Document 2, a structure for switching between a closing operation and a releasing operation of the latch mechanism according to the turning direction of the lever member When is adopted, the urging force applied to the lever member may hinder smooth release operation. For this reason, it is difficult to reduce the size of the apparatus by adopting such a switching structure, and this is one factor that hinders the improvement in mountability. Therefore, there is still room for improvement in this respect.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a closer device and a vehicle door that can smoothly close and release the latch mechanism with a simple configuration. It is to provide a locking device.

  A closer device that solves the above-mentioned problems has a lever member that closes and releases the latch mechanism according to the rotation direction, an actuator that rotates the lever member, a rotation fulcrum at the first end, and a first fulcrum. A biasing member that has a connection point with the lever member at two ends and pivotally biases the lever member, and holds the lever member at a pivot position where the biasing direction of the biasing member is reversed. And a neutral holding mechanism.

  According to the said structure, a lever member can be urged | biased by the two directions which oppose with one urging | biasing member. Thus, the biasing force of the biasing member can be applied to the driving force of the actuator in both the closing operation and the releasing operation while adopting an operation switching structure according to the rotation direction of the lever member. . Further, at the rotation position where the urging direction is reversed, the urging force for rotating the lever member is invalidated. And thereby, the rotation position of the lever member at the normal time can be stably held. As a result, the latch mechanism can be more smoothly closed and released with a simple configuration.

  In the closer device that solves the above problem, the neutral holding mechanism is arranged on a straight line where a connection point between the lever member and the biasing member passes through a rotation center of the lever member and a rotation fulcrum of the biasing member. It is preferable that the operation of the actuator is controlled so as to return the lever member to the neutral position, with the rotation position of the lever member as the neutral position.

  That is, the urging direction of the lever member by the urging member is reversed at the rotation position where the connection point between the urging member and the lever member is arranged on a straight line passing through the rotation center and the rotation fulcrum of both. Accordingly, the lever member is returned to the neutral position with the rotation position as the neutral position, so that the normal rotation position of the lever member can be stably maintained.

  In the closer device that solves the above-described problem, the actuator is driven by a motor having a cogging torque, and the neutral holding mechanism is in a rotating position where the biasing direction is reversed based on the cogging torque. It is preferable to restrict the rotation of the lever member.

According to the said structure, the rotation position of the lever member at the normal time can be stably hold | maintained with a simple structure.
In the closer device that solves the above-described problem, the actuator preferably outputs the motor while decelerating the rotation of the motor.

  According to the above configuration, the cogging torque of the motor can be used more effectively. And thereby, the rotation position of the active lever in normal time can be hold | maintained more stably.

  The vehicle door lock device that solves the above-mentioned problems is preferably provided with any of the above closer devices.

  According to the present invention, the latch mechanism can be closed and released more smoothly with a simple configuration and with a simple configuration.

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 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 structure and operation explanatory drawing of a closer device (normal time: neutral position). Schematic configuration and operation explanatory diagram of the closer device (at the time of closing control: full latch position). Schematic configuration and operation explanatory diagram of the closer device (at the time of release control: release position). The flowchart which shows the control aspect of an actuator.

Hereinafter, an embodiment of a closer device and a vehicle door lock 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 of this embodiment includes a latch 43 that engages with the striker 10 that has entered the striker input / output portion 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 input / output portion 41 is sandwiched in the groove width direction (left and right direction in FIG. 3). In the present embodiment, each of the support shafts 45 and 46 is rotatably provided such that the base end portion thereof 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. 3 to 9, the latch 43 formed in a substantially flat plate shape is formed with a striker engaging groove 47 opened on the outer peripheral surface thereof. The latch 43 is urged to rotate counterclockwise in each figure by a torsion coil spring (latch urging spring) (not shown) fitted to the support shaft 45. 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 entry / exit 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 torsion coil spring (pole urging spring) (not shown) fitted to the support shaft 46. 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 FIG. 4 and FIG. 5, 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 this embodiment, the engaging portion 43a on the latch 43 side is on the opening end of the striker engaging groove 47, specifically, on the side wall surface on the side pressed by the striker 10 engaging. 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. 6 and 7, the latch mechanism 20 of the present embodiment is driven by the closer device 30, so that the latch mechanism 20 is latched from the rotation position (half latch position Px) corresponding to the half latch state. The latch 43 is configured to rotate in the closing direction (clockwise direction in each figure) against the urging force of the urging spring. Further, the pawl 44 engages with a second engaging portion 43b formed on the peripheral surface of the latch 43, so that a latch biasing spring is applied at a position rotated in the closing direction (full latch position P1). It is configured to restrict the rotation of the latch 43 based on the force. 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. 8 and 9, the latch mechanism 20 of the present embodiment is driven by the closer device 30 so that the pawl 44 resists the biasing force of the pole biasing spring in each figure. It is configured to rotate counterclockwise. Further, the latch 43 is released from the rotation restriction due to the engagement with the pawl 44, so that the latch 43 is released in the release direction (counterclockwise direction in each figure) based on the biasing force of the latch biasing spring. Rotate. 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 and 2, the closer device 30 of this embodiment includes an actuator 51 that uses a motor 50 as a drive source. In the present embodiment, a brushed DC motor having a magnet on the rotor side is used as the motor 50 of the actuator 51. The actuator 51 is configured as a so-called geared motor in which the motor 50 and the speed reducer 52 are integrally provided. The actuator 51 of the present embodiment is configured to output the rotation of the motor decelerated by the speed reducer 52 using the pinion gear 53 provided on the side as an output unit.

  Further, the door lock device 1 of the present embodiment includes a bracket 54 that supports the actuator 51 on the side of the latch mechanism 20. Specifically, the bracket 54 is formed by plastic processing (pressing) a plate material. Then, the actuator 51 of the present embodiment is supported by the bracket 54, whereby the axis of the support shafts 45 and 46 of the latch 43 and the pole 44 constituting the latch mechanism 20 (in FIGS. 1 and 2). (Upper side).

  Specifically, the bracket 54 includes a support portion 54a having a substantially plate-like outer shape. The bracket 54 is fixed to the base plate 42 so that one surface (mounting surface 54s) of the support portion 54a faces the latch 43 and the pole 44. The actuator 51 is fixed to the support portion 54a from the back side of the mounting surface 54s.

  The support portion 54a is formed with an insertion hole 55 that penetrates the support portion 54a in the thickness direction. Furthermore, the actuator 51 of the present embodiment is configured such that the pinion gear 53 constituting the output portion protrudes to the mounting surface 54s side through the insertion hole 55 by being fixed to the support portion 54a. . The closer device 30 of this embodiment includes a sector gear 56 that meshes with the pinion gear 53 and an active lever 61 that rotates together with the sector gear 56.

  Specifically, in the present embodiment, the sector gear 56 and the active lever 61 are integrally formed by plastic processing (press processing) of a plate material. Specifically, the sector gear 56 has a substantially fan-shaped outer shape in which a base end side (main side) is pivotally supported by a rotating shaft 62 erected on the mounting surface 54s. Further, the active lever 61 extends radially outward from the rotation shaft 62 as a base end, specifically, on the opposite side of the sector gear 56 sharing the rotation shaft 62. A pressing portion 61 a formed by bending is provided at the tip of the active lever 61.

  That is, the active lever 61 as a lever member rotates by transmitting the driving force of the actuator 51 via the sector gear 56, and presses the member that contacts the pressing portion 61a. The closer device 30 of the present embodiment is configured to cause the latch mechanism 20 to close and release based on the rotation of the active lever 61.

  Specifically, as shown in FIG. 10, the closer device 30 of the present embodiment holds the active lever 61 at a preset neutral position P <b> 0 in the normal state of being in a standby state. Moreover, the closer apparatus 30 rotates the active lever 61 in the 1st direction and the 2nd direction on the basis of this neutral position P0, as shown in FIG.11 and FIG.12. Then, the latch mechanism 20 is closed by rotating in the first direction (see FIG. 11, counterclockwise direction in the figure), and rotated in the second direction (see FIG. 12, clockwise direction in the figure). The latch mechanism 20 is configured to release by movement.

  More specifically, as shown in FIGS. 2 and 11, the latch mechanism 20 of the present embodiment includes a latch lever 63 that rotates integrally with the latch 43 by being fixed to the support shaft 45. In the present embodiment, the latch lever 63 includes a lever main body 63a that extends substantially in parallel with the latch 43, and a latch lever pin 63b that stands upright at the tip thereof. The closer device 30 of the present embodiment rotates the latch 43 in the closing direction by the pressing portion 61a of the active lever 61 rotating in the first direction pressing the latch lever pin 63b of the latch lever 63. It has a configuration to let you.

  As shown in FIGS. 1 and 12, the latch mechanism 20 of this embodiment includes a lift lever 64 that rotates integrally with the pole 44 by being fixed to the support shaft 46. In the present embodiment, the lift lever 64 has a substantially L-shaped lever body 64a fixed to the support shaft 46 so that the tip side thereof extends along the axial direction of the support shaft 46, and the lever body 64a. A contact portion 64b provided on the side. The lift lever 64 is formed by plastic processing (pressing) a plate material. Furthermore, the closer device 30 of this embodiment includes an open lever 66 that rotates in conjunction with the active lever 61 that rotates in the second direction. The open lever 66 presses the contact portion 64b of the lift lever 64, thereby rotating the pole 44 in the release direction.

  Specifically, as shown in FIGS. 10 to 12, the open lever 66 of the present embodiment is formed by plastic processing (pressing) a plate material. The open lever 66 includes a contact portion 66a and a pressing portion 66b that are formed by bending the peripheral edge portion. And this open lever 66 has a rotation center in the part between the contact part 66a and the press part 66b.

  As shown in FIG. 1, in the present embodiment, a cover plate 68 that covers the mounting surface 54 s is fixed to the support portion 54 a of the bracket 54. Further, the cover plate 68 is provided with a rotation shaft 67 parallel to the rotation shaft 62 of the active lever 61. The open lever 66 of the present embodiment is pivotally supported by the rotating shaft 67.

  That is, as shown in FIG. 12, the open lever 66 of the present embodiment has a timepiece 61 in FIG. 12 when the pressing portion 61a of the active lever 61 rotating in the second direction presses the contact portion 66a. It rotates in the turning direction. And the press part 66b presses the contact part 64b of the lift lever 64 by the rotation.

As shown in FIGS. 10 to 12, the closer device 30 of the present embodiment includes a coil spring 70 as a biasing member that biases the active lever 61 to rotate.
More specifically, the coil spring 70 is rotated around the latch pin 71 as the rotation fulcrum X1 by the first end portion 70a being latched by the latch pin 71 provided on the radially outer side of the active lever 61. It is provided to be movable. Further, the second end portion 70b of the coil spring 70 is connected to the pressing portion 61a of the active lever 61 so as to be relatively rotatable. Further, the coil spring 70 is interposed between the latch pin 71 and the active lever 61 while being compressed in the axial direction. And the closer device 30 of this embodiment is comprised so that the urging | biasing direction of the active lever 61 by the coil spring 70 may be reversed according to the rotation position of the said active lever 61 by this.

  That is, as shown in FIG. 11, the coil spring 70 of the present embodiment has a connection point X2 with the active lever 61 at the rotation center X0 (rotation shaft 62) of the active lever 61 and the rotation fulcrum X1 of the coil spring 70. In the first direction with respect to the straight line N passing through the active lever 61, the active lever 61 is urged in the first direction. Further, as shown in FIG. 12, when the connection point X2 is in the second direction with respect to the straight line N passing through both the rotation center X0 and the rotation fulcrum X1, an active lever 61 is attached in the second direction. Rush. And the closer device 30 of this embodiment can perform the closing operation and the releasing operation of the latch mechanism 20 more quickly by applying the urging force of the coil spring 70 to the driving force of the actuator 51. Yes.

  As shown in FIG. 10, the closer device 30 of the present embodiment normally has a rotational position where the urging direction of the coil spring 70 is reversed, that is, the connection point X2 between the active lever 61 and the coil spring 70. A rotation position arranged on a straight line N passing through the rotation center X0 and the rotation fulcrum X1 is set as a neutral position P0, and the rotation position of the active lever 61 is held.

  That is, at the rotation position where the urging direction of the coil spring 70 is reversed, the force by which the coil spring 70 urges (presses) the active lever 61 is directed toward the rotation center X0 of the active lever 61. . In other words, at the neutral position P0 where the rotation position of the active lever 61 is normally maintained, the urging force of the coil spring 70 that rotates the active lever 61 is invalidated. Further, in the closer device 30 of the present embodiment, when the active lever 61 is in the neutral position P0, the rotation of the active lever 61 is restricted based on the cogging torque of the motor 50 that is the drive source of the actuator 51. It has become so. In the present embodiment, this makes it possible to stably hold the rotation position of the active lever 61 in the normal state at the neutral position P0.

  More specifically, as shown in FIG. 1, the closer device 30 of this embodiment includes an ECU 80 that supplies driving power to the motor 50 of the actuator 51. In addition, a plurality of position sensors 81 are connected to the ECU 80. In the present embodiment, for example, a switch type sensor (a limit switch or the like) is used for each of these position sensors 81. Furthermore, a release signal S2 indicating that the restraint of the striker 10 by the latch mechanism 20 should be released is input to the ECU 80, for example, when an opening operation switch (not shown) is operated. Yes. The ECU 80 of the present embodiment is configured to control the rotation of the motor 50 that supplies the driving power, that is, the operation of the actuator 51, based on the output signal S1 and the release signal S2 of each position sensor 81. Has been.

  Specifically, the ECU 80 of the present embodiment detects that the rotation position of the active lever 61 is at the neutral position P0 based on the output signal S1 of each position sensor 81. Further, the ECU 80 detects that the rotation position of the latch 43 is at the half latch position Px corresponding to the half latch state and the full latch position P1 corresponding to the full latch state. Further, the ECU 80 detects that the rotation position of the pawl 44 is at the release position P2 where the engagement with the latch 43 in the fully latched state is released. Then, the ECU 80 of the present embodiment controls the operation of the actuator 51 in order to cause the latch mechanism 20 to perform the closing operation and the releasing operation based on the latch state and lever position and the opening operation request indicated by the release signal S2. It is configured.

  More specifically, as shown in the flowchart of FIG. 13, when the ECU 80 detects that the latch 43 is at the half latch position Px (step 101: YES), the ECU 80 activates to close the latch mechanism 20. The operation of the actuator 51 is controlled so that the lever 61 rotates in the first direction (close control, step 102). Further, the ECU 80 determines whether or not the latch 43 has reached the full latch position P1 when the close control is executed (step 103). When it is detected that the latch 43 is at the full latch position P1 (step 103: YES), the operation of the actuator 51 is controlled so as to reverse the rotation direction of the active lever 61 and return to the neutral position P0. (Return control, step 104).

  Here, when executing the return control, the ECU 80 of the present embodiment determines that the connection point X2 between the coil spring 70 and the active lever 61 is the rotation center X0 of the active lever 61 and the coil spring as a return determination to the neutral position P0. It is monitored whether or not the active lever 61 has reached the rotation position arranged on the straight line N passing through the rotation fulcrum X1 of 70 (step 105). When it is detected that the active lever 61 has returned to the neutral position P0 (step 105: YES), the operation of the actuator 51 is stopped (step 106).

  Further, when the ECU 80 detects the occurrence of the opening operation request based on the release signal S2 (step 107: YES), the active lever 61 is rotated in the second direction so as to release the latch mechanism 20. Then, the operation of the actuator 51 is controlled (release control, step 108). Further, the ECU 80 monitors whether or not the pole 44 has reached the release position P2 when executing the release control (step 109). When it is detected that the pawl 44 is at the release position P2 (step 109: YES), the processing of the step 104 to step 106 is executed to execute the active lever 61 as in the case of execution of the close control. Is controlled to return to the neutral position P0.

As described above, according to the present embodiment, the following effects can be obtained.
(1) The closer device 30 includes an active lever 61 as a lever member that closes and releases the latch mechanism 20 according to the rotation direction, and an actuator 51 that rotates the active lever 61 by motor driving. . Further, the closer device 30 has a rotation fulcrum X1 at the first end 70a and a connection point X2 with the active lever 61 at the second end 70b, and biases the rotation of the active lever 61. A coil spring 70 is provided as a member. The closer device 30 is configured such that the active lever 61 is held at a rotation position where the urging direction of the coil spring 70 is reversed in a normal state when the closer device 30 is in a standby state.

  According to the above configuration, the active lever 61 can be urged in the first direction and the second direction by the single coil spring 70. Thus, the biasing force of the coil spring 70 can be applied to the driving force of the actuator 51 in both the closing operation and the releasing operation while adopting an operation switching structure according to the rotation direction of the active lever 61. it can. Further, at the rotation position where the urging direction is reversed, the urging force of the coil spring 70 that rotates the active lever 61 is invalidated. As a result, the rotation position of the active lever 61 in the normal state can be stably held. As a result, the latch mechanism 20 can be closed and released more smoothly with a simple configuration.

  (2) The closer device 30 includes an ECU 80 that controls the operation of the actuator 51 to rotate the active lever 61 in the first direction and the second direction. The ECU 80 sets the rotation position where the connection point X2 between the coil spring 70 and the active lever 61 is arranged on a straight line N passing through the rotation center X0 of the active lever 61 and the rotation fulcrum X1 of the coil spring 70 to the neutral position P0. Then, the active lever 61 rotated in the first direction or the second direction is returned to its neutral position P0.

  That is, the urging direction of the active lever 61 by the coil spring 70 is such that the connection point X2 between the coil spring 70 and the active lever 61 is at a rotation position where the connection point X2 is arranged on a straight line N passing through the rotation center X0 and the rotation support point X1 Invert. Therefore, by setting the rotation position as the neutral position P0 and returning the active lever 61 to the neutral position P0, the normal rotation position of the active lever 61 can be stably held.

  (3) As the motor 50 constituting the drive source of the actuator 51, a motor having a cogging torque is used. Then, the closer device 30 is configured such that the rotation of the active lever 61 is restricted at a rotation position where the biasing direction of the active lever 61 by the coil spring 70 is reversed based on the cogging torque. With such a configuration, the rotation position of the active lever 61 in a normal state can be stably held with a simple configuration.

  (4) The actuator 51 is configured as a so-called geared motor in which the motor 50 and the speed reducer 52 are integrally provided. By employing such an actuator 51, the cogging torque of the motor 50 can be used more effectively. As a result, the rotation position of the active lever 61 can be held more stably.

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, when the active lever 61 as a lever member that rotates in the first direction presses the latch lever 63, the latch mechanism 20 is closed. Then, when the open lever 66 that rotates in conjunction with the active lever 61 that rotates in the second direction presses the lift lever 64, the latch mechanism 20 is released. However, the present invention is not limited to this, provided that a lever member that rotates in two directions when driven by an actuator is provided and the latch mechanism 20 is closed and released according to the rotation direction of the lever member. The transmission path of the driving force generated by the rotation of the lever member may be arbitrarily changed.

  In the above embodiment, the active lever 61 is formed integrally with the sector gear 56. The driving force of the actuator 51 is transmitted through the pinion gear 53 that meshes with the sector gear 56. However, the present invention is not limited to this, and the shape of the lever member and the drive force transmission structure for the lever member may be arbitrarily changed.

  In the above embodiment, a compression coil spring is used as the coil spring 70 constituting the urging member, but a configuration using a tension coil spring may also be used. By adopting such a configuration, for example, the rotation shaft 62 of the active lever 61 can be used as the rotation fulcrum X1 of the coil spring 70. And thereby, size reduction of an apparatus can be achieved.

Moreover, you may use other spring members, such as a torsion coil spring, for example, as a biasing member. And this is not excluded about the structure using elastic members other than a spring.
In the above embodiment, the active lever is located at a rotation position where the connection point X2 between the coil spring 70 and the active lever 61 is arranged on a straight line N passing through the rotation center X0 of the active lever 61 and the rotation fulcrum X1 of the coil spring 70. 61, a neutral position P0 is set. In addition, the ECU 80 controls the operation of the actuator 51 so that the active lever 61 rotated in the first direction or the second direction is returned to the neutral position P0. Then, based on the cogging torque of the motor 50, the actuator 51 and the ECU 80 function as a neutral holding mechanism by restricting the rotation of the active lever 61 at the neutral position P0.

  However, the present invention is not limited to this, and the configuration of the neutral holding mechanism may be arbitrarily changed. For example, the ECU 80 may positively control the operation of the actuator 51 so that the rotation position of the active lever 61 is held at the neutral position P0. In this case, the neutral position holding control may be performed in any manner such as feedback control or power supply with a fixed energization phase for the brushless motor. Further, for example, a reduction gear 52 that does not transmit or hardly transmits reverse input from the active lever 61 side using a worm gear or the like may be used. The pivoting of the active lever 61 is physically restricted, for example, by providing an engaging portion that engages with the active lever 61 at a pivot position where the biasing direction of the active lever 61 by the coil spring 70 is reversed. Also good.

  In the above embodiment, the motor 50 of the actuator 51 is a DC motor with a brush with a magnet provided on the rotor side. However, a configuration using a brushless motor with a magnet provided on the stator side is used. It may be. A configuration using a motor with little or no cogging torque may be used.

Next, technical ideas that can be grasped from the above embodiments will be described.
(A) The closer holding mechanism includes an engaging portion that engages with the lever member at a rotation position where the biasing direction is reversed. Thus, the rotation position of the lever member can be stably held with a simple configuration.

  DESCRIPTION OF SYMBOLS 1 ... Door lock device, 10 ... Striker, 20 ... Latch mechanism, 30 ... Closer device, 41 ... Strike input / output part, 43 ... Latch (lock member), 43a ... Engagement part, 43b ... Second engagement part, 44 ... Pole (lock member), 44a ... engagement part, 45 ... support shaft, 46 ... support shaft, 47 ... striker engagement groove, 50 ... motor, 51 ... actuator (neutral holding mechanism), 52 ... reduction gear, 53 ... Pinion gear, 54 ... bracket, 54a ... support part, 54s ... mounting surface, 55 ... insertion hole, 56 ... sector gear, 61 ... active lever (lever member), 61a ... pressing part, 62 ... rotating shaft, 63 ... latch lever , 63b ... latch lever pin, 64 ... lift lever, 64b ... abutting part, 66 ... open lever, 66a ... abutting part, 66b ... pressing part, 67 ... rotating shaft, 68 ... cover pre 70 ... coil spring (biasing member), 70a ... first end, 70b ... second end, 71 ... latching pin, 80 ... ECU (neutral holding mechanism), 81 ... position sensor, P0 ... neutral position, P1 ... Full latch position, P2 ... Release position, Px ... Half latch position, X0 ... Rotation center, X1 ... Rotation fulcrum, X2 ... Connection point, N ... Line, S1 ... Output signal, S2 ... Release signal.

Claims (5)

A lever member for closing and releasing the latch mechanism according to the rotation direction;
An actuator for rotating the lever member;
A biasing member having a pivot point at the first end and a connecting point with the lever member at the second end, and biasing the lever member;
A closer device, comprising: a neutral holding mechanism that holds the lever member at a rotation position where the urging direction of the urging member is reversed. The closer device according to claim 1,
The neutral holding mechanism has a pivot position of the lever member in which a connection point between the lever member and the biasing member is arranged on a straight line passing through a pivot center of the lever member and a pivot fulcrum of the bias member. A closer device, wherein the actuator is controlled to return the lever member to the neutral position. The closer device according to claim 1 or 2,
The actuator is a motor having a cogging torque as a drive source,
The closer holding mechanism restricts the turning of the lever member at a turning position where the urging direction is reversed based on the cogging torque. The closer device according to claim 3,
The actuator decelerates and outputs the rotation of the motor;
Closer device characterized by.   The vehicle door lock apparatus provided with the closer apparatus as described in any one of Claims 1-4.