JP6912355B2 - Door closer device and door opening / closing system equipped with it - Google Patents

Description

The present invention relates to a door closer device and a door opening / closing system including the same.

Conventionally, in order to close the door for vehicles in the half-door state to the fully closed state, the latch in the half-lock position is rotated to the full-lock position by the driving force of the drive unit, and the striker is pulled in to fully close the door. There is a door closer device that closes the door (for example, Patent Document 1).

The door closer device of Patent Document 1 engages with a latch provided in a vehicle body having a groove through which a striker can enter and a latch in a half-lock position and a full-lock position, respectively, to regulate the rotation of the latch. It has a pole. The latch and the pole are each rotatably supported, the latch is urged by a spring toward the initial position where the striker can enter the groove, and the pole is urged toward the latch side by the spring. This causes the pole to engage the latch in the half-lock or full-lock position and restrict the latch from rotating in the direction towards the initial position. The door closer device of the same document includes a switch that responds when the latch is on the front side (initial position side) of the half-lock position, and is based on the response of the switch when the back door is closed. The drive unit starts the pull-in operation of the back door. This enhances the responsiveness of the door closer device and enables quick closing operation.

Japanese Unexamined Patent Publication No. 2012-62649

By the way, in the above-mentioned conventional door closer device, for example, when the back door in the open state is fully closed in cooperation with the power back door device (PBD) for opening and closing the back door, before the latch is in the half-lock position. When the PBD is stopped, the striker is ready to escape from the groove. As a result, for example, when the back door is opened by its own weight, the striker may come out of the groove and the door closer device may not be able to fully close the back door, and there is still room for improvement in this respect.

It should be noted that such a problem is not limited to the case where the back door is closed to the vicinity of the half-door state by the PBD, and can also occur when, for example, the occupant manually closes the back door.
An object of the present invention is to provide a door closer device capable of suppressing the inability to fully close a door and a door opening / closing system including the same.

The door closer device for solving the above problems is rotatably provided on one of the door and the vehicle body, and is rotatably provided on one of the door and the vehicle body and a latch having a groove provided on the other side through which a striker can enter. The half-lock position between the initial position where the striker can enter the groove and the full-lock position where the striker enters the groove and the door is fully closed, and the state at each of the full-lock positions. A pole that engages with the latch and restricts the latch from rotating in the direction toward the initial position, and a drive unit that rotationally drives the latch in the direction toward the full lock position. The latch is on the initial position side of the half-lock position, and at the quarter lock position that prevents the striker from coming out of the groove, the latch is not rotationally driven by the drive unit, and the initial position is It was configured to be restricted from rotating in the direction of.

According to the above configuration, the latch at the quarter lock position before the half lock position is restricted from rotating in the direction toward the initial position, so that the door is not closed until the latch reaches the half lock position. Even in the state, the striker is prevented from coming out of the groove. As a result, it is possible to prevent the striker from slipping out and being unable to fully close the door when trying to fully close the door.

The door closer device includes a closer control unit that controls the operation of the drive unit and a switch that responds by rotating the latch from the initial position to the quarter lock position. The closer control unit is the switch of the switch. Based on the response, it is preferable to operate the drive unit so that the latch rotates in the direction toward the full lock position.

According to the above configuration, when the quarter lock position on the front side of the half lock position is reached, the switch for starting the operation of the drive unit responds, so that the responsiveness is improved and the door is quickly opened. Can be closed.

In the door closer device, the latch lever that rotates integrally with the latch and the driving force of the drive unit rotate, and the latch can be rotated in the direction in which the latch faces the full lock position by engaging with the latch lever. A pole lever that can rotate integrally with the gear lever in a direction that engages with the pole and disengages the pole from the latch, and a direction in which the pole lever engages the pole with the latch. A pole lever urging member that urges the pole lever so as to rotate, and a release lever that can rotate in a direction that engages with the pole lever and disengages the pole lever from the latch of the pole. The latch is configured to be restricted from rotating in a direction toward the initial position while in the quarter lock position by engaging the pole lever with the latch lever. preferable.

According to the above configuration, the latch lever that transmits the driving force for rotating the latch in the direction toward the full lock position to the latch and the pole are rotated so as to disengage the pole with the latch in the full lock position. The engagement of the pole levers with each other regulates the latch in the quarter lock position from rotating towards the initial position. In this way, by using the parts necessary for operating the door closer device to regulate the rotation of the latch in the quarter lock position in the direction toward the initial position, the door is fully closed while suppressing the increase in the number of parts. It is possible to prevent the striker from slipping out and being unable to be fully closed when trying.

In the door closer device, it is preferable that the pole lever can rotate relative to the pole in a direction in which the pole engages with the latch.
According to the above configuration, the shapes of the pole lever, the latch and the pole can be simplified as compared with the case where the pole lever rotates integrally with the pole.

A door opening / closing system that solves the above problems includes the door closer device according to any one of the above, a door opening / closing device that opens / closes the door, and an opening / closing control unit that controls the operation of the door opening / closing device. A closer control unit that controls the operation of the drive unit is provided with a switch that responds by rotating the latch from the initial position to the quarter lock position, and the latch locks the latch based on the response of the switch. The drive unit is operated so as to rotate in a direction toward the position, and the open / close control unit stops the door opening / closing device based on the response of the switch.

According to the above configuration, the door opening / closing device is stopped based on the response of the switch, and the latch is rotationally driven toward the full lock position, so that the door closing operation is smoothly taken over from the door opening / closing device to the door closer device. .. Further, since the switch responds when it reaches the quarter lock position on the front side of the half lock position, the responsiveness of the door closer device can be improved and the door can be quickly fully closed.

Here, although there is a slight delay between the response of the switch and the actual stop of the door opening / closing device due to the arithmetic processing of the opening / closing control unit, the door is opened / closed before the latch reaches the half-lock position. It can also be assumed that the device will stop. In this regard, in the above configuration, even if the door opening / closing device is stopped before the latch is in the half-lock position, the striker is prevented from coming out of the latch groove in the quarter-lock position, so that the door closer device completely closes the door. It is possible to suppress the inability to enter the state.

According to the present invention, it is possible to prevent the door from being completely closed.

Schematic configuration of the door opening and closing system. The perspective view of the internal structure excluding the housing and the motor unit from the door closer device. A perspective view of the door closer device as seen from the striker side. A perspective view of the door closer device from the side opposite to the striker. An exploded perspective view of the door closer device as seen from the striker side. Timing chart of pull-in operation and release operation by the door closer device. (A) is a side view of the internal configuration in which the latch is in the initial position as seen from the striker side, and (b) is a plan view of the same as seen from above. (A) is a side view of the internal configuration in which the latch is in the quarter lock position as viewed from the striker side, and (b) is a plan view of the same as seen from above. (A) is a side view of the internal configuration in which the latch is in the half-lock position as seen from the striker side, and (b) is a plan view of the same as seen from above. (A) is a side view of the internal configuration in which the latch is in the fully locked position as seen from the striker side, and (b) is a plan view of the same as seen from above. (A) is a side view of the internal configuration in which the latch is overstroked from the full lock position as seen from the striker side, and (b) is a plan view of the same as seen from above. (A) is a side view of the internal configuration at the completion of the pull-in operation as seen from the striker side, and (b) is a plan view of the same as seen from above. (A) is a side view of the internal configuration at the start of the release operation as seen from the striker side, and (b) is a plan view of the same as seen from above. (A) is a side view of the internal configuration at the moment when the pole is disengaged from the latch from the striker side, and (b) is a plan view of the same as seen from above. (A) is a side view of the internal configuration immediately after the pole is disengaged from the latch from the striker side, and (b) is a plan view of the same as seen from above. (A) is a side view of the internal configuration at the position where the gear lever is overstroked from the striker side, and (b) is a plan view of the same as seen from the upper side.

Hereinafter, an embodiment of a door closer device and a door opening / closing system including the door closer device will be described with reference to the drawings.
As shown in FIG. 1, the vehicle 1 includes a back door 3 as a door provided at a rear end portion of the vehicle body 2. The back door 3 opens and closes the door opening 4 that opens to the rear of the vehicle body 2. The back door 3 of the present embodiment employs a so-called flip-up door that can open and close the door opening 4 by rotating with the upper end portion as a fulcrum.

The vehicle 1 is provided with a power back door device (PBD) 5 as a door opening / closing device for opening / closing the back door 3 and a control device 6 as an opening / closing control unit for controlling the operation of the power back door device 5. There is. The power back door device 5 is configured in a shaft shape that can be expanded and contracted by driving a screw spindle with a motor as a drive source, and both ends thereof are connected to the vehicle body 2 and the back door 3 via hinges. Then, the control device 6 opens and closes the back door 3 by driving the power back door device 5 through the power supply to the motor.

Further, the vehicle 1 is provided with a door closer device 7 that closes the back door 3 that has been closed by the power back door device 5 until it is close to the half-door state until it is fully closed, and the control device 6 operates the door closer device 7. Be controlled. That is, the control device 6 also functions as a closer control unit. As will be described later, the door closer device 7 pulls in the striker 8 (not shown in FIG. 1) by the driving force of the motor unit 12 to close the back door 3 in the half-door state to the fully closed state. In the present embodiment, the door closer device 7 is provided at the lower center of the back door 3 in the vehicle width direction, and the striker 8 is provided at the lower end of the door opening 4 in the vehicle width direction.

As a result, in the vehicle 1, the door opening / closing system 9 capable of controlling the opening / closing operation of the back door 3 is configured by the power back door device 5, the door closer device 7, and the control device 6.

Next, the mechanical configuration of the door closer device will be described.
As shown in FIGS. 3 and 4, the door closer device 7 includes a housing 11 and a motor unit 12 as a drive unit fixed to the housing 11. Further, the door closer device 7 includes a latch 13, a pole 14, a latch lever 15, a pole lever 16, a gear lever 17, and a release lever 18, and each of these members can rotate with respect to the housing 11. It is provided. Then, each of these members rotates in conjunction with the drive of the motor unit 12, so that the striker 8 is pulled in and released by the latch 13.

Specifically, as shown in FIGS. 2 to 5, the housing 11 has a substantially square box-shaped base 21 having an open surface, a body 22 arranged in the base 21, and a bracket 23 covering the opening surface of the base 21. And a cover 24. In the following description, the open side of the base 21 is the upper side, and the bottom wall 31 side of the base 21 is the lower side.

The side wall 32 facing the striker 8 in the base 21 is formed with a notch 33 extending from the upper end thereof to the bottom wall 31. The bottom wall 31 is formed with a linear base groove 34 that opens toward the side wall 32 and extends in a direction substantially orthogonal to the side wall 32. A plate-shaped flange portion 35 extending outward is formed on each of the pair of side walls extending in a direction orthogonal to the side wall 32. The flange portion 35 is formed so as to be inclined with respect to the bottom wall 31.

In the base 21, the latch 13 and the pole 14 are rotatably arranged in substantially the same plane. The latch 13 is arranged on one side (right side in FIG. 5) of the base groove 34 in the base 21, and the pole 14 is arranged on the other side (left side in FIG. 5) of the base groove 34. .. A cushion rubber 36 is arranged in the base 21 to abut the striker 8 that has entered and absorb the impact.

The latch 13 is formed in a substantially disk shape, and its substantially center thereof is rotatably fitted to a rotating shaft 41 provided on the bottom wall 31. The latch 13 is formed with a latch groove 42 as a groove that opens on the outer peripheral surface thereof and extends linearly. Further, the latch 13 is separated clockwise from the full lock engaging portion 43 protruding outward in the radial direction at a position clockwisely separated from the latch groove 42 about the rotation shaft 41, and the full lock engaging portion 43. A half-lock engaging portion 44 is formed at the position so as to project outward in the radial direction. The full lock engaging portion 43 is provided at a position separated from the half lock engaging portion 44 by the rotating shaft 41. Further, the latch 13 is formed with a pair of connecting convex portions 45 projecting outward in the radial direction at positions substantially facing the latch groove 42 with the rotating shaft 41 interposed therebetween.

The pole 14 is formed in the shape of an elongated plate curved along the longitudinal direction, and the central portion in the longitudinal direction is rotatably fitted to the rotation shaft 51 provided on the bottom wall 31. One end of the pole 14 functions as a pole engaging portion 52 that engages with the full lock engaging portion 43 and the half lock engaging portion 44. When the pole engaging portion 52 is engaged with the full lock engaging portion 43 or the half lock engaging portion 44, the pole 14 tries to rotate clockwise and the latch 13 tries to rotate counterclockwise. In addition, it is formed in a shape that does not disengage the engagement. Further, on one end side of the pole 14, a pole reaction portion 53 projecting upward is formed at a position separated counterclockwise from the pole engaging portion 52 with the rotation shaft 51 as the center. The pole response unit 53 responds to the pole switch 132, which will be described later. A connecting portion 54 projecting upward is formed on the other end side of the pole 14.

The body 22 is formed in a substantially square plate shape, and is fixed to the base 21 so as to cover the latch 13 and the pole 14 from above. A side wall 61 is formed on the side edge of the body 22 facing the striker 8 so as to close the notch 33 of the base 21. The body 22 is formed with a linear body groove 62 that opens into the side wall 61 and extends in a direction substantially orthogonal to the side wall 61. The body groove 62 is substantially entirely opposed to the base groove 34 in the vertical direction.

The body 22 is provided with a latch urging member 63 including a torsion coil spring or the like that urges the latch 13 so that the latch 13 rotates counterclockwise. The latch 13 is in a state of being rotated most counterclockwise in the base 21, and the open end of the latch groove 42 coincides with the open end of the base groove 34 and the body groove 62 in the vertical direction so that the striker 8 can enter. Become. That is, the latch urging member 63 urges the latch 13 so as to rotate in the direction toward the initial position where the striker 8 can enter the latch groove 42. Further, the body 22 is provided with a pole urging member 64 made of a torsion coil spring or the like that urges the pole 14 so that the pole 14 rotates clockwise. By rotating the pole 14 clockwise, the pole engaging portion 52 approaches the latch 13. That is, the pole urging member 64 urges the pole 14 so that the pole 14 rotates in the direction of engaging with the latch 13. Then, the rotational position of the latch 13 in which the pole engaging portion 52 engages with the half-lock engaging portion 44 becomes the half-lock position in which the striker 8 enters the latch groove 42 and restricts its disengagement. Further, the rotation position of the latch 13 in which the pole engaging portion 52 engages with the full lock engaging portion 43 is the full lock position in which the striker 8 enters the latch groove 42 and the back door 3 is fully closed. Since the full lock engaging portion 43 is separated from the rotating shaft 41 by the half lock engaging portion 44 as described above, the pole 14 is in a state where the pole engaging portion 52 is engaged with the full lock engaging portion 43. In the (full lock position), the state is rotated counterclockwise from the state in which the half lock engaging portion 44 is engaged (half lock position).

On the body 22, the latch lever 15 and the pole lever 16 are rotatably arranged in substantially the same plane. The latch lever 15 is formed in an elongated plate shape, and one end portion in the longitudinal direction is rotatably fitted to the same rotating shaft 41 as the latch 13. Further, a connecting portion 71 extending downward is formed at one end of the latch lever 15. The latch lever 15 is rotatably connected to the latch 13 by fitting the connecting portion 71 between the connecting convex portions 45 of the latch 13. A round bar-shaped pin 72 projecting upward is provided at the other end of the latch lever 15. The pin 72 is provided at a position counterclockwise away from the half-lock engaging portion 44 with the rotation shaft 41 as the center.

The pole lever 16 is formed in the shape of an elongated plate curved along the longitudinal direction, and the central portion in the longitudinal direction is rotatably fitted to the same rotation shaft 51 as the pole 14. One end of the pole lever 16 functions as a pull-in reaction part 81 that drives a pull-in switch 131, which will be described later. A pole lever engaging portion 82 that engages with the pin 72 is formed on the side surface of the pole lever 16 on the pin 72 side. When the pole lever 16 tries to rotate clockwise and the latch lever 15 tries to rotate counterclockwise while the pole lever engaging portion 82 is engaged with the pin 72, the engagement is not released. It is formed like this. The pole lever engaging portion 82 of the present embodiment is formed in an arc shape having substantially the same curvature as the outer peripheral surface of the pin 72.

Here, since the pin 72 is provided at a position counterclockwise away from the half-lock engaging portion 44 about the rotation shaft 41 as described above, the latch 13 at the initial position rotates clockwise. At this time, the pole lever engaging portion 82 is locked to the pin 72 before the pole engaging portion 52 engages with the half-lock engaging portion 44. That is, the rotation position of the latch 13 in which the pole lever engaging portion 82 is locked to the pin 72 corresponds to the quarter lock position on the initial position side of the half lock position, and in this state, the latch 13 is in the direction toward the initial position. Rotation is restricted. In the quarter lock position, the latch 13 rotates slightly clockwise to prevent the striker 8 from coming out of the latch groove 42 (see FIG. 8). The quarter lock position may be any position between the initial position and the half lock position, as long as it prevents the striker 8 from coming out of the latch groove 42, and the initial position and the half lock position shown in FIG. 8 It is not limited to the approximately middle (1/4) between.

Further, a curved plate-shaped insertion portion 83 projecting upward is formed on the side surface of the pole lever 16 on the one end side opposite to the pin 72. The other end side of the pole lever 16 is formed with a bent portion 84 that is extended downward and then bent so as to wrap around the side opposite to the latch 13 at the connecting portion 54 of the pole 14. The bent portion 84 engages with the connecting portion 54 when the pole lever 16 rotates counterclockwise. That is, the bent portion 84 engages with the connecting portion 54 when the pole lever 16 rotates in the direction in which the pole 14 is disengaged from the latch 13. On the other hand, the bent portion 84 does not engage with the connecting portion 54 when the pole lever 16 rotates clockwise. That is, when the pole lever 16 rotates in the direction in which the bent portion 84 engages the pole 14 with the latch 13, the bent portion 84 does not engage with the connecting portion 54, and the pole lever 16 does not engage with the pole 14. The pole 14 can rotate relative to the direction in which it engages with the latch 13.

The bracket 23 is formed in a plate shape bent at a substantially right angle, and has a substantially square plate-shaped lid wall portion 91 provided so as to close the opening of the base 21 and a lid wall portion 91 on the side opposite to the striker 8. It has a vertical wall portion 92 extending in a direction substantially orthogonal to the side edge. A plate-shaped flange portion 93 that is inclined so as to be substantially parallel to the flange portion 35 of the base 21 is formed on both side edges of the lid wall portion 91 that are substantially orthogonal to the standing wall portion 92. The bracket 23 is fixed to the base 21 by fastening the flange portions 35 and 93 with bolts or the like in a posture in which the lid wall portion 91 is substantially parallel to the bottom wall 31 of the base 21. Further, one flange portion 93 is formed with a hook portion 94 projecting toward the standing wall portion 92 side. The cover 24 is formed in a box shape with one side open, and is fixed so as to cover the base 21 from the back surface side of the bracket 23.

The lid wall portion 91 is formed with a through hole 95 through which the pin 72 is inserted and a through hole 96 through which the insertion portion 83 of the pole lever 16 is inserted. The through hole 95 is formed in an arc groove shape that follows the trajectory of the pin 72 when the latch 13 rotates between the initial position and the full lock position, and the movement of the pin 72 due to the rotation of the latch 13 is hindered. It is designed not to be done. The through hole 96 is formed in an arc groove shape that follows the trajectory of the insertion portion 83 when the pole lever 16 rotates with the rotation of the latch 13, so that the insertion portion 83 moves with the rotation of the pole lever 16. It is designed not to be hindered.

A housing portion 97 is formed in the central portion of the vertical wall portion 92 so as to project from the back surface opposite to the lid wall portion 91 toward the front surface side on the lid wall portion 91 side. The accommodating portion 97 is formed in a bottomed cylindrical shape, and the lower half of the inner wall surface thereof is open. A gear lever 17 and a release lever 18 are rotatably arranged on the surface of the vertical wall portion 92 in substantially the same plane.

The gear lever 17 has a main body portion 101 formed in a substantially fan-shaped plate shape, and a central portion thereof is rotatably fitted to a rotating shaft 102 provided on a vertical wall portion 92. A plurality of external teeth 103 protruding outward in the radial direction are formed on the outer peripheral surface of the main body 101 of the gear lever 17, and a gear response portion 104 extending in the circumferential direction is formed on one end side in the circumferential direction. Has been done. The gear response unit 104 drives the gear switch 133, which will be described later. The gear lever 17 is formed with a plate-shaped release engaging portion 105 extending from the central portion to a side (lower side) substantially opposite to the main body portion 101 in the radial direction. Further, the gear lever 17 has a plate-shaped lock engaging portion that extends outward in the radial direction from a position between the main body portion 101 and the release engaging portion 105 and is bent so as to be separated from the standing wall portion 92. 106 is formed.

The release lever 18 is formed in the shape of an elongated plate bent in the middle of the longitudinal direction, and is rotatably fitted to the rotation shaft 111 provided on the vertical wall portion 92. A plate-shaped release engaged portion 112 bent so as to be separated from the standing wall portion 92 is formed on one end side (lower side) of the release lever 18 in the longitudinal direction. Further, the release lever 18 is formed with a plate-shaped hole forming portion 113 which is extended downward longer than the release engaged portion 112 and then bent so as to be separated from the standing wall portion 92. An insertion hole 114 penetrating in the plate thickness direction is formed in the hole forming portion 113, and the insertion portion 83 of the pole lever 16 is inserted. A protrusion 115 protruding toward the insertion portion 83 is formed on the inner peripheral surface of the insertion hole 114, and the protrusion 115 is in contact with the concave curved surface of the insertion portion 83. On the side surface of the release lever 18 on the other end side (upper side) of the release lever 18 opposite to the gear lever 17, a hook portion 116 bent so as to be separated from the standing wall portion 92 is formed. The other end of the release lever 18 is connected to a connecting member that rotates the release lever 18 clockwise when viewed from the surface side of the standing wall portion 92 in conjunction with an operation of a door handle (not shown), or an occupant. It is possible to directly rotate with the fingers of the door.

Further, the release lever 18 is urged so that the release lever 18 rotates counterclockwise by a pole lever urging member 117 formed of a coil spring or the like provided between the hook portions 94 and 116. As a result, the pole lever 16 is urged in the direction in which the insertion portion 83 engages with the pin 72 (latch lever 15) by engaging with the inner peripheral surface of the insertion hole 114. That is, the pole lever urging member 117 is in the direction in which the pole lever 16 engages with the latch lever 15 (the direction in which the pole 14 engages with the latch 13) through the engagement between the insertion hole 114 and the insertion portion 83. The release lever 18 is urged to rotate.

The motor unit 12 is integrated with a motor and a speed reducer that reduces the rotation of the motor. The motor unit 12 is fixed to the back surface of the standing wall portion 92 via a plurality of bolts 121. The pinion gear 122 that outputs the decelerated rotation of the motor unit 12 is arranged in the accommodating portion 97 from the back surface side of the standing wall portion 92, and meshes with the external teeth 103 of the gear lever 17. As a result, the gear lever 17 is rotated by the driving force of the motor unit 12.

Further, the door closer device 7 includes a pull-in switch 131 as a switch, a pole switch 132, and a gear switch 133. The pull-in switch 131 and the pole switch 132 are fixed to the body 22, and the gear switch 133 is fixed to the standing wall portion 92 of the bracket 23. Then, these switches 131 to 133 respond according to each rotation position of the latch 13, the pole 14, the latch lever 15, the pole lever 16, the gear lever 17, and the release lever 18, and output each on / off state to the control device 6. ..

Specifically, the pull-in switch 131 is turned on when the latch 13 is in the initial position, rotates clockwise from the initial position, and switches from on to off by contacting the pull-in reaction unit 81 at the quarter lock position, and the quarter lock is performed. The latch 13 is arranged at a position that keeps it off while the latch 13 is on the full lock position side of the position. The pole switch 132 is turned on by contacting the pole response portion 53 with the latch 13 in the initial position, rotates clockwise from the initial position, and the pole response portion 53 is separated when the latch 13 is in the full lock position. By doing so, the pole 14 is switched from on to off, and is arranged at a position where the pole 14 is kept off while being engaged with the latch 13. The gear switch 133 is turned on by contacting the gear response portion 104 in a neutral position where the gear lever 17 is not engaged with both the latch lever 15 and the release lever 18, and the latch lever 15 or the release lever is turned on from the neutral position. It is arranged at a position where it switches off when approaching 18.

Next, the electrical configuration of the door closer device 7 will be described.
As shown in FIG. 1, the control device 6 includes a pull-in signal Sin indicating on / off of the pull-in switch 131, a pole signal Spo indicating on / off of the pole switch 132, a gear signal Sge indicating on / off of the gear switch 133, and a back door 3. An operation input signal Scr indicating an opening / closing operation request or the like is input. The operation input signal Scr is generated, for example, when the occupant operates the operation switch 134 provided in the vehicle interior of the vehicle 1. Then, the control device 6 controls the operation of the back door 3 based on the operation request of the occupant indicated by the pull-in signal Sin, the pole signal Spo, the gear signal Sge, and the operation input signal Scr.

Specifically, the control device 6 is such that when the pull-in switch 131 responds and switches from on to off, the motor unit 12 rotates in the normal direction in order to rotate the latch 13 clockwise (in the direction toward the full lock position). The operation is controlled and the power back door device 5 is stopped. Further, the control device 6 drives the power back door device 5 when the pull-in switch 131 is switched from off to on. Further, the control device 6 controls the operation of the motor unit 12 so as to reverse when the pole switch 132 responds and switches from on to off, and when the pole switch 132 responds and switches from off to on, the motor The operation of the unit 12 is controlled so that the unit 12 rotates in the normal direction. Then, the control device 6 stops the motor unit 12 when the gear switch responds and switches from on to off.

Next, the operation of the door closer device 7 until the back door 3 is fully closed by the door opening / closing system 9 of the present embodiment will be described.
As shown in FIG. 6, at the time Tc1 during the closing operation of the back door 3 from the fully open state, as shown in FIGS. 7 (a) and 7 (b), the striker 8 is the latch groove 42 of the latch 13. The gear lever 17 is in a neutral position where it does not engage with both the latch lever 15 and the release lever 18. Further, the pull-in response unit 81 is separated from the pull-in switch 131, the pole response unit 53 is in contact with the pole switch 132, and the gear response unit 104 is in contact with the gear switch 133. 132 is on and gear switch 133 is off.

Subsequently, as shown in FIGS. 8A and 8B, when the closing operation of the back door 3 proceeds, the striker 8 starts to enter the latch groove 42, and the latch 13 rotates slightly clockwise. do. As a result, the pole lever 16 rotates clockwise, the pole engaging portion 52 is in the quarter lock position where the pole engaging portion 52 engages with the pin 72 of the latch lever 15, and the retracting responding portion 81 activates the retracting switch 131 to act as the retracting switch. 131 switches from on to off (time Tc2 in FIG. 6). Then, when the control device 6 detects a change in the pull-in signal Sin, the control device 6 drives the door closer device 7 so that the motor unit 12 rotates in the normal direction, and stops the power back door device 5. The motor unit 12 starts normal rotation slightly later than the time Tc2 due to the arithmetic processing of the control device 6, and the power back door device 5 stops slightly later than the time Tc2. At time Tc2, the pull-in switch 131 is off, the pole switch 132 is on, and the gear switch 133 is off.

By the time the power back door device 5 stops, the striker 8 enters the latch groove 42, the gear lever 17 rotates with the forward rotation of the motor unit 12, and the lock engaging portion 106 engages with the pin 72 to latch. By rotating 13 clockwise, the latch 13 rotates clockwise toward the full lock position. Then, as shown in FIGS. 9A and 9B, the latch 13 is in the half-lock position where the pole engaging portion 52 engages with the half-lock engaging portion 44. While the latch 13 rotates from the quarter lock position to the half lock position, the engagement between the pole lever 16 and the latch lever 15 is released, the gear response portion 104 is separated from the gear switch 133, and the gear switch 133 is turned off. Switch from to on. Therefore, as shown in FIG. 6, at time Tc3, the pull-in switch 131 is off, the pole switch 132 is on, and the gear switch 133 is on.

Further, the gear lever 17 rotates with the forward rotation of the motor unit 12, the lock engaging portion 106 engages with the pin 72, and the latch 13 is rotated clockwise, so that the latch 13 is clocked toward the full lock position. Rotate around. Then, as shown in FIGS. 10A and 10B, the latch 13 is in the full lock position where the pole engaging portion 52 engages with the full lock engaging portion 43. At this time, by engaging the pole engaging portion 52 with the full lock engaging portion 43, the pole engaging portion 52 rotates clockwise from the state of being engaged with the half lock engaging portion 44, and the pole engaging portion 52 is a pole. Separate from switch 132. As a result, the pole switch 132 is switched from on to off. Then, when the control device 6 detects a change in the pole signal Spo, the control device 6 drives the door closer device 7 so as to temporarily stop the motor unit 12 and then reverse the movement. The pull-in switch 131 is in contact with the pin 72 in addition to the pull-in response unit 81. As shown in FIG. 6, at the time Tc4 when the latch 13 is in the full lock position, the pull-in switch 131 is off, the pole switch 132 is off, and the gear switch 133 is on.

As shown in FIGS. 11A and 11B, the gear lever 17 further rotates the latch 13 clockwise from the full lock position until the motor unit 12 reverses. As shown in FIG. 6, at the time Tc5 at the position where the latch 13 overstrokes clockwise from the full lock position, the pull-in switch 131 is off, the pole switch 132 is off, and the gear switch 133 is on.

After that, as shown in FIGS. 12A and 12B, when the motor unit 12 reverses and the gear lever 17 is disengaged from the latch lever 15, the latch 13 is counterclockwise by the latch urging member 63. It rotates clockwise to reach the full lock position where the pole engaging portion 52 engages the full lock engaging portion 43. Further, the gear response unit 104 comes into contact with the gear switch 133, and the gear switch 133 is switched from on to off. Then, when the control device 6 detects a change in the gear signal Sge, the motor unit 12 is stopped, the pulling operation of the striker 8 by the door closer device 7 is completed, and the back door 3 is fully closed. As shown in FIG. 6, at the time Tc6 after the completion of the pull-in operation, the pull-in switch 131 is off, the pole switch 132 is off, and the gear switch 133 is off.

Next, the operation of the door closer device 7 until the back door 3 in the fully closed state is opened by the door opening / closing system 9 of the present embodiment will be described.
As shown in FIG. 6, when the operation input signal Scr indicating the open operation request is input, the control device 6 controls the operation of the motor unit 12 so as to reverse the operation, and the motor unit 12 receives the operation input signal Scr. The reversal starts with a slight delay from the input. As shown in FIGS. 13 (a) and 13 (b), the gear lever 17 rotates, and the release engaging portion 105 engages with the release engaged portion 112 of the release lever 18. Further, the gear response unit 104 is separated from the gear switch 133, and the gear switch 133 is switched from off to on. At this time To1, the pull-in switch 131 is off, the pole switch 132 is off, and the gear switch 133 is on.

Subsequently, the gear lever 17 is rotated by the reversal of the motor unit 12, and the release lever 18 is rotated. Then, as shown in FIGS. 14A and 14B, the insertion hole 114 of the release lever 18 engages with the insertion portion 83 of the pole lever 16 to rotate the pole lever 16 counterclockwise and fold it. The curved portion 84 engages with the connecting portion 54 of the pole 14 to rotate the pole 14 counterclockwise. As a result, the pole engaging portion 52 is released from the engagement with the full lock engaging portion 43, the pole responding portion 53 comes into contact with the pole switch 132, and the pole switch 132 is switched from off to on. Then, when the control device 6 detects a change in the pole signal Spo, the control device 6 drives the door closer device 7 so as to temporarily stop the motor unit 12 and then rotate in the normal direction. At the moment when the pole engaging portion 52 is disengaged from the full lock engaging portion 43, the retractable portion 81 is separated from the retractable switch 131, but the pin 72 is in contact with the retractable switch 131. Therefore, as shown in FIG. 6, at the time To2 at the moment when the pole 14 is disengaged from the latch 13, the pull-in switch 131 is off, the pole switch 132 is on, and the gear switch 133 is on.

Subsequently, as shown in FIGS. 15A and 15B, the latch 13 is rotated counterclockwise by the urging force of the latch urging member 63. As a result, the pin 72 is separated from the pull-in switch 131, and the pull-in switch 131 is switched from off to on. Then, when the control device 6 detects the change in the pull-in signal Sin, it determines that the restraint of the latch 13 by the door closer device 7 has been released, and drives the power back door device 5 to open the back door 3. At this time To3, the pull-in switch 131 is on, the pole switch 132 is on, and the gear switch 133 is on.

As shown in FIGS. 16A and 16B, the gear lever 17 further rotates clockwise and the latch 13 counterclockwise toward the initial position until the motor unit 12 rotates in the normal direction. Rotate to. As shown in FIG. 6, at the time To4 at the position where the gear lever 17 is overstroked clockwise, the pull-in switch 131 is on, the pole switch 132 is on, and the gear switch 133 is on.

Then, in a state where the motor unit 12 rotates in the normal direction, the gear lever 17 is disengaged from the release lever 18 and is not engaged with the latch lever 15, the gear response portion 104 comes into contact with the gear switch 133, and the gear switch 133 switches from on to off. Then, when the change in the gear signal Sge is detected, the motor unit 12 is stopped and the position returns to the initial position shown in FIGS. 7 (a) and 7 (b).

The operation and effect of this embodiment will be described.
(1) The door closer device 7 is in a state where the latch 13 is provided in the back door 3 and has a latch groove 42 rotatably provided and the striker 8 can enter, and the back door 3 is provided in each of the half-lock position and the full-lock position. It is provided with a pole 14 that engages with the latch 13 and restricts the latch 13 from rotating in the direction toward the initial position. Further, the motor unit 12 is provided so that the latch 13 is rotationally driven in the direction toward the full lock position. Then, at the quarter lock position where the latch 13 is on the initial position side of the half lock position and the striker 8 is prevented from coming out of the latch groove 42, the latch 13 is not rotationally driven by the motor unit 12 and is moved to the initial position. It was configured to be restricted from rotating in the direction of the direction. Therefore, even if the back door 3 is not closed until the latch 13 is in the half-lock position, the striker 8 is prevented from coming out of the latch groove 42. As a result, it is possible to prevent the striker 8 from slipping out and being unable to be fully closed when the back door 3 is to be fully closed.

(2) The door closer device 7 includes a retractable switch 131 that responds by rotating the latch 13 from the initial position to the quarter lock position, and the control device 6 has the latch 13 in the full lock position based on the response of the retractable switch 131. The motor unit 12 is operated so as to rotate in the direction toward. When the quarter lock position is reached on the front side of the half lock position, the pull-in switch 131 for starting the operation of the motor unit 12 responds, so that the responsiveness of the door closer device 7 is improved and the speed is increased. The back door 3 can be fully closed.

(3) The door closer device 7 is rotated by the driving force of the latch lever 15 and the motor unit 12 that rotate integrally with the latch 13, and engages with the latch lever 15 to move the latch 13 toward the full lock position. It is provided with a rotatable gear lever 17. Further, a pole lever 16 that can rotate integrally with the pole 14 in a direction that engages with the pole 14 and disengages the pole 14 from the latch 13 and the pole lever 16 engages the pole 14 with the latch 13. A pole lever urging member 117 that urges the pole lever 16 so as to rotate in the direction of rotation is provided. Further, a release lever 18 that can be rotated in a direction that engages with the pole lever 16 and disengages the pole lever 16 from the latch 13 of the pole 14 is provided. By matching, the rotation from the state in the quarter lock position toward the initial position is restricted. Therefore, the pole 14 is rotated so as to disengage the latch lever 15 that transmits the driving force that the latch 13 rotates in the direction toward the full lock position to the latch 13 and the pole 14 with the latch 13 in the full lock position. By engaging with the pole lever 16 to be made to rotate, the latch 13 at the quarter lock position is restricted from rotating toward the initial position. In this way, in order to regulate the rotation of the latch 13 at the quarter lock position in the direction toward the initial position by using the parts necessary for the operation of the door closer device 7, the back door 3 is operated while suppressing the increase in the number of parts. It is possible to prevent the striker 8 from slipping out and being unable to be fully closed when trying to be fully closed.

(4) Since the pole lever 16 is configured to be rotatable relative to the pole 14 in the direction in which the pole 14 engages with the latch 13, the pole lever 16 is compared with the case where the pole lever 16 rotates integrally with the pole 14. , The shapes of the latch 13 and the pole 14 can be simplified.

(5) The door closer device 7 forms an insertion hole 114 in the release lever 18, is inserted into the insertion hole 114 in the pole lever 16, and engages with the inner peripheral surface of the insertion hole 114 in both rotation directions of the pole lever 16. A possible insertion portion 83 was formed. Then, the pole lever urging member 117 urges the release lever 18 so that the pole lever 16 rotates in the direction of engaging with the latch lever 15 through the engagement between the insertion hole 114 and the insertion portion 83. That is, the pole lever 16 is urged by the pole lever urging member 117 in the rotational direction in which it engages with the latch lever 15 via the release lever 18. Further, the release lever 18 is urged by the pole lever urging member 117 in a direction opposite to the direction in which the pole 14 and the latch 13 are disengaged via the pole lever 16. Since the pole lever 16 and the release lever 18 can be urged by one pole lever urging member 117 in this way, the number of parts can be reduced.

(6) The door opening / closing system 9 includes a door closer device 7, a power back door device 5 for opening / closing the back door 3, and a control device 6 for controlling the operation of the door closer device 7 and the power back door device 5. Then, the control device 6 operates the motor unit 12 so that the latch 13 rotates in the direction toward the full lock position based on the response of the pull-in switch 131, and stops the power back door device 5. Therefore, the closing operation of the back door 3 is smoothly taken over from the power back door device 5 to the door closer device 7.

Here, although there is a slight delay between the response of the pull-in switch 131 and the actual stop of the power backdoor device 5 due to the arithmetic processing of the control device 6, the latch 13 is in the half-lock position. It can be assumed that the power back door device 5 is stopped before this happens. In this respect, in the present embodiment, even if the power back door device 5 is stopped before the latch 13 is in the half-lock position, the striker 8 is prevented from coming out of the latch groove 42 of the latch 13 in the quarter lock position. , It is possible to prevent the door closer device 7 from being unable to fully close the back door 3.

This embodiment can be modified and implemented as follows. The present embodiment and the following modifications can be implemented in combination with each other within a technically consistent range.
-In the above embodiment, the pole lever 16 may be connected to the pole 14 so as to rotate integrally with the pole 14.

-In the above embodiment, the pull-in switch 131 may be turned off when the latch 13 is in the initial position, and may be switched from off to on by contacting the pull-in response unit 81 at the quarter lock position. Similarly, the pole switch 132 and the gear switch 133 may be turned on and off in reverse.

-In the above embodiment, the power back door device 5 is stopped based on the response of the pull-in switch 131, but the present invention is not limited to this, and the power back door device 5 may be stopped at different timings.

-In the above embodiment, the motor unit 12 is driven based on the response of the pull-in switch 131, but the present invention is not limited to this, and the motor unit 12 may be driven at different timings.

-In the above embodiment, an insertion hole may be formed in the pole lever 16 and an insertion portion may be formed in the release lever 18.
-In the above embodiment, the pole lever urging member 117 urges the pole lever 16 via the release lever 18, so that the pole lever urging member 117 also urges the release lever 18. However, the urging member for urging the pole lever 16 and the urging member for urging the release lever 18 may be provided separately.

-In the above embodiment, the latch 13 is restricted from rotating in the direction from the quarter lock position to the initial position by engaging the pole lever 16 with the latch lever 15. However, the present invention is not limited to this, for example, a quarter lock engaging portion is formed on the latch 13 at a position clockwisely separated from the half lock engaging portion 44 about the rotation shaft 41, and the quarter lock engaging portion is formed so as to project outward in the radial direction. The rotation of the latch 13 at the quarter lock position may be restricted by engaging the pole engaging portion 52 with the joint portion.

-In the above embodiment, the striker 8 may be provided on the back door 3 and the door closer device 7 may be provided on the vehicle body 2.
-In the above embodiment, the door closer device 7 and the door opening / closing system 9 are applied to those that open / close the back door 3, but the present invention is not limited to this, and may be applied to, for example, those that open / close a sliding door that moves in the front-rear direction of the vehicle. good.

1 ... Vehicle, 2 ... Body, 3 ... Back door (door), 5 ... Power back door device, (Door opening / closing device), 6 ... Control device (closer control unit, opening / closing control unit), 7 ... Door closer device, 8 ... Striker, 9 ... Door opening / closing system, 11 ... Housing, 12 ... Motor unit (drive unit), 13 ... Latch, 14 ... Pole, 15 ... Latch lever, 16 ... Pole lever, 17 ... Gear lever, 18 ... Release lever, 21 ... Base, 22 ... Body, 23 ... Bracket, 24 ... Cover, 34 ... Base groove, 42 ... Latch groove (groove), 43 ... Full lock engaging part, 44 ... Half lock engaging part, 52 ... Pole engaging part, 53 ... Pole responding part, 62 ... Body groove, 63 ... Latch urging member, 64 ... Pole urging member, 72 ... Pin, 81 ... Pull-in response part, 82 ... Pole lever engaging part, 83 ... Inserting part, 91 ... Lid wall part, 92 ... Standing wall part, 104 ... Gear response part, 114 ... Insert hole, 117 ... Pole lever urging member, 122 ... Pinion gear, 131 ... Retract switch, 132 ... Pole switch, 133 ... Gear switch, Scr ... Operation input signal, Sge ... gear signal, Sin ... pull-in signal, Spo ... pole signal.

Claims (5)

A latch that is rotatably provided on either the door or the vehicle body and has a groove that allows the striker to enter the other.
Half-lock between the initial position where the striker can enter the groove and the full lock position where the striker enters the groove and the door is fully closed, which is rotatably provided on one of the door and the vehicle body. A pole that engages with the latch in each of the position and the full lock position to restrict the latch from rotating in the direction toward the initial position.
A drive unit for rotationally driving the latch in a direction toward the full lock position is provided.
The latch is on the initial position side of the half-lock position, and at the quarter lock position that prevents the striker from coming out of the groove, the latch is not rotationally driven by the drive unit, and the initial position is A door closer device configured to be restricted from rotating in the direction of. In the door closer device according to claim 1,
A closer control unit that controls the operation of the drive unit,
A switch that responds by rotating the latch from the initial position to the quarter lock position is provided.
The closer control unit is a door closer device that operates the drive unit so that the latch rotates in a direction toward the full lock position based on the response of the switch. In the door closer device according to claim 1 or 2.
A latch lever that rotates integrally with the latch,
A gear lever that rotates by the driving force of the drive unit, engages with the latch lever, and can rotate the latch in the direction in which the latch faces the full lock position.
A pole lever that can rotate integrally with the pole in a direction that engages with the pole and disengages the pole from the latch.
A pole lever urging member that urges the pole lever so that the pole lever rotates in a direction that engages the pole with the latch.
A release lever that can be rotated in a direction that engages with the pole lever and disengages the pole lever from the latch of the pole.
The latch is a door closer device configured such that when the pole lever engages with the latch lever, rotation in a direction toward the initial position while in the quarter lock position is restricted. In the door closer device according to claim 3,
The pole lever is a door closer device capable of rotating relative to the pole in a direction in which the pole engages with the latch. The door closer device according to any one of claims 1 to 4.
A door opening / closing device that opens / closes the door,
It is provided with an opening / closing control unit that controls the operation of the door opening / closing device.
The door closer device includes a switch that responds by rotating the latch from the initial position to the quarter lock position.
The closer control unit that controls the operation of the drive unit operates the drive unit so that the latch rotates in the direction toward the full lock position based on the response of the switch.
The opening / closing control unit is a door opening / closing system that stops the door opening / closing device based on the response of the switch.

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