JP2006144367A - Door closer device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door closer device equipped with a mechanical cancellation mechanism with a small number of parts. <P>SOLUTION: An actuator 3 has an operating part 31b that can be engaged with an operated part 6c provided at a latch 6, and a drive mechanism 31 displacing the operating part in the engaged state along a predetermined path. The drive mechanism is provided with a guide wall surface 14 arranged facing the operating part, and a first energizing member SP3 that can press the operating part to the guide wall surface. The operating part is provided separably from the guide wall surface by external force exceeding the energizing force of the first energizing member. A lift lever 7 is provided with a second energizing member SP2, and a pawl 71 is turnably supported energized by the second energizing member so as to return into a position of maintaining the latch in the closed position. An open lever 8 is provided with a first operating piece 8a rotated to abut on the lift lever to separate the pawl from the latch, and a second operating piece 8b abutting on the operating part to separate the operating part from the guide wall surface. Mechanical cancellation can be performed only with the open lever. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle door closer device.

  A door closer device is provided on a side door or a rear door of the automobile. This is a device that detects when the door is half closed (semi-closed door state), and detects it with a built-in detection switch to fully close the door (fully closed door state) with a driving force such as a motor. is there. Therefore, it is an extremely important device for passenger safety.

  If the door closer device breaks down, the occupant is trapped in the vehicle. Therefore, the door closer device can be mechanically fully opened (hereinafter referred to as “mechanical cancellation”) even if the door closer device is in a semi-closed door state or a fully closed door state. It has a safety mechanism or a fail-safe mechanism.

  In general, a mechanical device is more likely to break down and become less reliable as the number of components constituting the device increases. Therefore, it is necessary to simplify the door closer device important for safety by reducing the number of parts as much as possible.

  As shown in FIG. 12, the conventional door closer device 600 includes a drive unit 610 and a door lock unit 620. Both are connected by a wire 630, and the driving force of a motor 611 provided in the drive unit 610 is transmitted to the door lock unit 620 via the wire 630 (see, for example, Patent Document 1). As shown in FIG. 13, the door lock unit 620 is provided with a latch 621 that engages with the striker 200 on the vehicle body side. The latch 621 is reciprocally rotatable about a shaft 621a from a release (fully open) position to a full latch (fully closed) position via a half latch (half closed) position. When the latch 621 enters the half latch state, the half latch switch detects the state, the wire 630 is pulled by the drive unit 610, and the close lever 622 to which the wire 630 is coupled is moved, thereby moving the close lever A part of 622 is engaged with an engagement (protrusion) portion 623 of the latch 621 to forcibly rotate the latch 621 from the half latch position to the full latch position.

In addition, a pull lever 625 having an arc-shaped elongated hole 624 centered on the shaft 621a of the latch 621 is provided on the upper portion of the close lever 622, and a pin 626 on the upper end of the close lever 622 is engaged with the elongated hole 624, and A spring 627 that urges the long hole 624 in a direction away from the latch 621 is provided at the upper end of 625. Further, the upper end of the pull lever 625 is bent to the latch 621 side, an outside lever 628 that is rotatable around a shaft 628a is attached to the lower side of the pull lever 625, and the end of the outside lever 628 that rises when the door is opened And the upper end of the pull lever 625 are connected by a pull link 629. Therefore, for example, when canceling the mechanism at the half latch position, by operating the outside lever 628 to open the door, the operating force is transmitted from the pull link 629 to the pull lever 625, and the elongated hole 624 of the pull lever 625 is separated from the latch 621. Therefore, the upper end of the close lever 622 engaged with the elongated hole 624 also moves in the separating direction, and the latch 621 rotates from the half latch position to the release position.
JP 2000-80832 A

  However, such a conventional door closer device has an outside lever for normal latch release, and a pull lever, pull link, interlocking link, etc. for releasing the forced rotation of the latch by the drive unit (mechanical cancellation). This is a complicated mechanism with many parts. Also, since the close lever is urged to the latch side by a pull lever with a guide long hole, when the close lever returns to the initial position after the mechanism is canceled and the latch is opened, it must not get over the protrusion of the latch. However, the pull lever moves at that time, and if there is no play between the pull lever and the outside lever, it moves to the outside lever. Therefore, if play is not set via a link or the like as in the conventional door closer device, the door opens. Further, since the link is stopped and play is required between the pull lever and the outside lever, the number of parts is further increased.

  This invention is made | formed in view of said problem, and makes it a subject to provide the door closer apparatus provided with the mechanical cancellation mechanism with few components.

  The invention according to claim 1 made to solve the problem is a door closer device, wherein the latch is rotatable from an open position for receiving a striker to a closed position for prohibiting the removal of the striker, and the latch is moved to the closed position. An actuator that pivots toward the door, a lift lever having a pole that maintains the closed position of the latch, an open lever that separates the actuator and the pole from the latch and pivots the latch to an open position. The actuator includes an operation portion that can be engaged with an operated portion provided in the latch, and a drive mechanism that displaces the operation portion in the engaged state along a predetermined path. The driving mechanism includes a guide wall surface disposed opposite to the operation unit, and a first wall capable of pressing the operation unit against the guide wall surface. An urging member, the operating portion is provided so as to be separated from the guide wall surface by an external force exceeding the urging force of the first urging member, and the lift lever includes a second urging member, The second biasing member is pivotally supported by the second biasing member so as to return to a position where the pawl maintains the latch in the closed position, and the open lever rotates against the lift lever. A first operation piece that contacts and separates the pole from the latch and a second operation piece that contacts the operation portion of the actuator and separates from the guide wall surface are provided.

  By rotating the open lever, the operation portion of the actuator can be separated from the guide wall surface to separate the operation portion from the latch, and the pole can be separated from the latch. That is, mechanical cancellation can be performed only with an open lever, and a conventional pull lever or pull link is unnecessary (the number of parts is small), and cost reduction and reliability improvement can be achieved.

  The invention according to claim 2 is the vehicle door closer device according to claim 1, wherein the drive mechanism includes a first swinging member that is rotated by a drive source, and the operation portion is disposed at a distal end side. The second swinging member is pivotally supported on the free end side of the first swinging member, and the operation portion of the second swinging member has an arc shape centering on the shaft of the pivotal support, The first urging member is a spring member that urges and urges the second swinging member in a predetermined direction with respect to the first swinging member, and the operation portion is more than the free end portion of the first swinging member. The latch is configured to rotate toward the closed position while always maintaining the preceding rotation angle.

  If comprised in this way, the drive mechanism can rotate a latch to a closed position reliably.

  The invention according to claim 3 is the door closer device for a vehicle according to claim 2, wherein the operated portion is a protrusion protruding in a radial direction of a rotation shaft of the latch, and the protrusion includes The engagement pin is engageable with the arcuate end portion.

  If comprised in this way, the drive mechanism can rotate a latch to a closed position smoothly and more reliably. In addition, the operation of the operation portion of the second swing member over the protrusion of the latch and the drive mechanism returning to the home position can be performed smoothly and reliably.

  Mechanical cancellation can be performed only with an open lever, and there is no need for a conventional pull lever or pull link (the number of parts is small), and cost reduction and improved reliability can be achieved.

  When the drive mechanism is at the home position, the open lever does not hit the operation portion, so that the urging force of the second swing member is not involved in the open operation, and the open operation force can be reduced.

  The best mode for carrying out the vehicle door closer device of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the door closer device 4 includes a housing 5, a plate-like latch 6 that can be operated to retract the striker 2, a pole 71 that restricts rotation of the latch 6, and a latch 6 and a pole that are driven by the power of the motor 32. The actuator 3 that performs the door closing operation and the closing release operation through the operation 71 is provided. As shown in detail in FIG. 4, the housing 5 has a housing body 5a made of synthetic resin and a base 5b made of iron plate that covers the housing body 5a. And the recessed part 5c which receives the striker 2 is formed in the base 5b.

  As shown in FIGS. 1 to 4, the latch 6 is supported so as to be rotatable about a substantially vertical axis X1 disposed on the base 5b of the housing 5, and is supported by a relatively strong coil spring SP1 or the like. It is urged in the direction of the arrow A1 toward the position HP1 (state of FIG. 5 / an example of the open position).

  The latch 6 is provided with a first protrusion 6a located on the inner side of the body and a second protrusion 6b located on the outer side, and the engagement between the protrusions 6a and 6b that can receive the striker 2 is provided. A groove portion 6g is formed. A half engagement surface 6h that is pressed against the action piece 71a of the pole 71 of the lift lever 7 at the half latch position (an example of a closed position) is provided on the inner surface side of the second protrusion 6b of the latch 6. On the outer surface side of 6a, a full engagement surface 6f that is pressed against the action piece 71a of the pole 71 at the full latch position (an example of a closed position) is provided. Further, the latch 6 is provided with a third protrusion 6c (an example of an operated part) for receiving a closing operation by a passive lever 31 (an example of a second swinging member) of a drive mechanism 31 of the actuator 3 described later. The third protrusion 6c includes an engaged pin 6k that can engage an arcuate end 31c described later. The engaging pin 6k includes a roller 6j that can rotate around an axis X3 that is substantially perpendicular to the third protrusion 6c. At the home position HP1, the fourth protrusion 6d provided on the latch 6 at a position close to the third protrusion 6c is pressed against the cushion-like stopper 51a (see FIG. 5) provided on the housing 5 by the biasing force of the coil spring SP1. ing.

  As a position detection mechanism for detecting the rotation position of the latch 6, a detected piece 6p (see FIG. 4) that rotates integrally with the latch 6 is provided, and the detected piece 6p is electrically connected to the housing body 5a. A rotary switch SW1 (see FIG. 4) is detected. The rotary switch SW1 includes a first contact Q1 (not shown) for detecting that the latch 6 is in the half latch position, and a second contact Q2 (not shown) for detecting that the latch 6 is in the full latch position. And a third contact Q3 (not shown) for grounding.

  The lift lever 7 has a pole 71 at substantially the center, and the pole 71 has a first position ST (see FIG. 3 and the like) in which the action piece 71a is located in the rotation locus of the first protrusion 6a and the second protrusion 6b of the latch 6. ) And a second position RT (see FIG. 5 and the like) deviating from these rotation trajectories, and is supported so as to be rotatable about a substantially vertical axis X2 disposed on the base 5b. The biasing force of the coil spring SP2 (an example of a second biasing member) is biased to return to the first position ST. At the first position ST, the action piece 71a can abut against the half engagement surface 6h or the full engagement surface 6f to prevent the latch 6 from returning to the home position HP1, and at the second position RT, the coil spring SP2 The other end of the action piece 71a is pressed against a stopper (not shown) provided on the housing body 5a by the urging force. Further, the lift lever 7 includes an operated piece 72a that is operated by a first operation piece 8a of the open lever 8 to be described later at one position radially outward from the action piece 71a of the pole 71. Further, a detected piece 72b in which the position of the pole 71 is detected by the pole switch SW2 (see FIG. 1) is provided at the other position on the radially outer side.

(Configuration of drive mechanism 31)
The actuator 3 includes a motor 32 (an example of a drive source), a drive mechanism 31, and an origin SW3 disposed in the housing body 5a to control the switching operation between the close operation and the close release operation. It is fixed to. ing.

  The drive mechanism 31 is supported by a first swing lever 31a (an example of a first swing member) supported so as to be swingable around a drive shaft 10 described later, and a pin near the tip of the first swing lever 31a. An operation pin 31d (an example of an operation unit) extending substantially parallel to the drive shaft 10 is provided in the vicinity of the tip of the second swing lever 31b. It is integrally formed. Moreover, it has the circular-arc-shaped edge part 31c centering on a drive shaft at the front-end | tip part of the 2nd swing lever 31b. Further, as a means for specifying the movement locus of the operation pin 31d based on the swing of the first swing lever 31a to a predetermined shape, the housing body 5a is provided with a smooth guide surface 14 (an example of a guide wall surface and a drive mechanism). Between the second swing lever 31b and the first swing lever 31a, the coil spring SP3 presses the operation pin 31d against the guide surface 14 by urging the second swing lever 31b counterclockwise in the figure. (An example of a first urging member and a drive mechanism) is provided. The base 5b is provided with a drive shaft 10 that is rotated in both directions indicated by arrows C1 and C2 by the rotational driving force transmitted from the electric motor 32. The first swing lever 31a is not rotatable relative to the drive shaft 10. It is supported by. The rotational force of the electric motor 32 includes a worm gear (not shown) fixed to the rotating shaft of the electric motor 32, a second gear (not shown) externally fitted to the drive shaft 10, and the worm gear and the second gear. This is transmitted to the drive shaft 10 via a speed reduction mechanism including a first gear (not shown) interposed therebetween. In transmitting the rotational force of the electric motor 32, the number of gears may be increased in order to increase the rotational force of the drive shaft 10.

  The biasing force of the coil spring SP3 provided between the second swing lever 31b and the first swing lever 31a is related to the arrangement posture of the drive mechanism 31 with respect to the vehicle and the moving distance of the operation pin 31d on the guide surface 14. However, it is determined to be large enough to always press the operation pin 31d against the guide surface 14, but at the same time, a foreign object, for example, noise from the CPU, which tries to prevent the operation pin 31d from sliding on the guide surface 14 If the tip of the third projection 6c of the latch 6 (not the engaged recess 6k) is in the vicinity of the guide surface 14 due to an abnormal situation such as a malfunction in the case of the second swing lever 31b or the guide The operation pin 31d is housed in such a way that it can get over the foreign object (so that the surface 14 and the like are not damaged).

  When the drive shaft 10 continues to rotate in the direction of the arrow C1 by the forward rotation operation of the electric motor 32, the first swing lever 31a is integrally swung, and the operation pin 31d of the second swing lever 31b is guided to the guide surface. 14 slides and moves. The arc-shaped end 31c engages the latch 6 in the direction of the arrow A2 with the roller 6j rotatably provided around the engagement pin 6k provided on the third protrusion 6c of the latch 6. A full latch state shown in FIG.

  The guide surface 14 has an arcuate end 31c on which the engaging pin 6k (the state shown in FIG. 7) of the latch 6 at the half latch position slides on the guide surface 14 to the full latch position (the state shown in FIG. 8). Designed to engage.

  The open lever 8 is pivotally supported by the axis X4, and rotates to contact the operation piece 72a of the lift lever 7 to separate the pole 71 from the first protrusion 6a of the latch 6, and the actuator A second operation piece 8b that contacts the third operation pin 31d and separates the operation pin 31d from the guide wall surface 14. The open lever 8 includes an arm 8c extending in the radial direction of the axis X3, and is connected to an open cable 9 connected to an open handle of the door. Therefore, by operating the open handle, the open lever 8 can be brought into the open position OP (see FIG. 5), and by releasing the open handle, the open lever 8 can be brought into the closed position CS (see FIG. 5). it can.

  Next, the “close operation”, “close release operation” and “close mechanism cancel operation” of the door by the door closer device 4 will be described in accordance with each step.

(Door closing operation)
The door closing operation by the door closer device 4 is executed according to the following steps.

  <Door Open State> When the door is in the open state, as shown in FIG. 6, the latch 6 is in the home position HP1 where the fourth protrusion 6d is pressed against the stopper 51a, and the pawl 71 has the action piece 71a as a stopper (not shown). 1) at the first position ST pressed. Further, the first swing lever 31a of the drive mechanism 31 is stopped at the home position HP2. Further, in this state, the arcuate end 31 c of the second swing lever 31 b is at a position deviated from the rotation locus of the third protrusion 6 c of the latch 6. This is still a preliminary stage before entering the substantial door closing operation, and the substantial door closing operation is started from the next stage.

  <Acquisition of half-latch state> When the user manually closes the door slightly from the upper door open state, the second protrusion 6b of the latch 6 is pushed by the striker 2 of the body, and the latch 6 resists the coil spring SP1. Is swung in the direction of arrow A2. The second protrusion 6b swings and pushes the pole 71 toward the second position RT as it is, and finally when the pole 71 exceeds the action piece 71a of the pole 71, the pole 71 returns to the first position ST, and the action piece of the pole 71 The “half-latched state” of the latch 6 is obtained in which the 71a is engaged with the half-engaging surface 6h (the state shown in FIG. 7). At the same time, the detected piece 6p of the latch 6 is detected by the first contact Q1 of the rotary switch SW1. Is done. Therefore, an electric signal indicating “a half-latch state (in the door closing operation)” is output from the rotary switch SW1, and the CPU in the ECU (electronic control unit mounted on the vehicle body) that receives this signal turns the electric motor 32 on. A control signal is issued to rotate in the forward rotation direction (arrow C1 direction).

  <Start of striker pull-in> By the normal rotation of the electric motor 32 started at the end of the half latch state acquisition step, the first swing lever 31a (with the drive shaft 10) moves in the C1 direction (clockwise) from the home position HP2. When the swinging operation is performed, the operation pin 31d of the second swing lever 31b slides on the guide surface 14 and engages with the third protrusion 6c of the latch 6. Subsequently, as illustrated in FIG. The latch 6 is swung in the direction of arrow A2. As a result, the striker 2 engaged in the engagement groove 6 g starts to be drawn into the recess 5 c of the housing 5.

  <Full latch preparation stage> The swing operation of the first swing lever 31a by the forward rotation of the electric motor 32 is continued, and the latch 6 is swung in the direction of the arrow A2 while the operation pin 31d slides on the guide surface 14. When the operation is performed, the first protrusion 6a of the latch 6 swings the pole 71 toward the second position RT, and finally the pole 71 returns to the first position ST when it exceeds the action piece 71a of the pole 71. The "full latch preparation stage" of the latch 6 is obtained in which the action piece 71a of the pole 71 faces the full engagement surface 6f, but the swing operation of the first swing lever 31a by the forward rotation of the electric motor 32 is still next. It continues until the stage. The full latch preparation stage is a full latch state in a broad sense.

  <Overstroke step> The swinging operation of the first swinging lever 31a by the forward rotation of the electric motor 32 is continued, and the operation pin 31d slides and moves on the guide surface 14 in the direction B1, further moving the latch 6 in the direction of the arrow A2. The first protrusion 6a of the latch 6 is once separated from the action piece 71a of the pole 71 to obtain an “overstroke process” (not shown). At the same time, the detected piece 6p of the latch 6 is turned to the rotary switch. It is detected by the second contact Q2 of SW1. Therefore, an electrical signal indicating the “full latch state” is output from the rotary switch SW1, and the CPU that has received this signal temporarily stops the electric motor 32 and then continues to control the electric motor 32 in the reverse direction. Put out. It can be said that the overstroke process is a full latch state in a broad sense.

  <Origin Returning Step of Drive Mechanism> By the reverse rotation (rotation in the C2 direction) of the electric motor 32, the swing operation of the first swing lever 31a in the C2 direction is started. First, when the operation pin 31d slightly returns to the B2 direction on the guide surface 14, the latch 6 is rotated in the A1 direction by the biasing force of the coil spring SP1, and the first protrusion 6a is again the working piece of the pole 71. A true “full latched state” is obtained in which the arcuate end 31c is in contact with 71a and is separated from the roller 6j of the third protrusion 6c of the latch 6 (not shown). Next, the reverse rotation of the electric motor 32 is further continued, the operation pin 31d further returns in the B2 direction, and finally the first swing lever 31a returns to the home position HP2 (see FIG. 5 and the like). Upon return, the origin switch SW3 detects return, and based on the detection signal, the CPU stops the electric motor 32 and enters a standby state.

  When the drive mechanism 31 is at the home position HP2, since the open lever 8 does not hit the drive mechanism 31, the urging force of the second swing lever 31b is not involved in the open operation, and the open operation force can be reduced.

(Door close release operation)
The door closing release operation by the door closer device 4 is executed according to the following steps.

  <Door Closed State> When the door is in the closed state, as shown in FIG. 3, the door closer device 4 is in the same state as the final stage of the <drive mechanism origin return step> at the end of the door closing operation described above. . That is, the latch 6 is in a fully latched state in which the full engagement surface 6 f is pressed against the action piece 71 a of the pole 71. The first swing lever 31a of the drive mechanism 31 is at the home position HP2.

  <Pole 71 release process> When the door open handle (not shown) is operated from the above state, the open lever 8 connected to the open handle 9 by the open cable 9 rotates from the CS position to the OP position. The first operation piece 8 a comes into contact with the operation piece 72 a of the lift lever 7 to separate the pole 71 from the first protrusion 6 a of the latch 6.

  As described above, since the drive mechanism 31 is at the home position, the open lever 8 does not hit the operation pin 31d. Therefore, the urging force of the second swing lever 31b is not involved in the open operation, and the open operation force can be reduced. it can.

  <Returning Step of Latch 6 and Pole 71> Then, the latch 6 is released from the restriction by the pole 71 and starts to return in the A1 direction toward the home position HP1 by the biasing force of the coil spring SP1. The return process of the latch 6 is performed in parallel with the operation in which the latch 6 pushes the striker 2 outward from the recess 5c of the base 5b by the biasing force of the coil spring SP1. Further, the pole 71 is returned to the first position ST by the urging force of the coil spring SP2. When the open handle (not shown) of the door is released, the open lever 8 is returned to the closed (CS) position by the urging force of the open handle.

(Closed mechanism cancel operation)
The mechanical canceling operation is performed, for example, when something is caught in the door gap between the half-latch (half-closed door) state in FIG. 7 and the full-latch (full-closed door) state in FIG. The mechanism canceling operation in the full latch state of FIG. 8 will be described.

  <Release process of pole 71 and arcuate end 31c> When the door open handle (not shown) is operated in the fully latched state of FIG. 8, the open handle and open cable 9 are connected as shown in FIG. When the open lever 8 is rotated from the CS position to the OP position, the first operating piece 8a comes into contact with the operating piece 72a of the lift lever 7 to separate the pole 71 from the first protrusion 6a of the latch 6, and at the same time, the second The operation piece 8 b comes into contact with the operation pin 31 d of the drive mechanism 31 to separate the arcuate end portion 31 c from the roller 6 j of the third protrusion 6 c of the latch 6.

  <Latching Step of Latch 6 and Pole 71> Then, the latch 6 (indicated by a two-dot chain line in FIG. 9) is released from the restriction by the pole 71 and is directed toward the home position HP1 by the biasing force of the coil spring SP1 in the A1 direction. Start to return to. The return process of the latch 6 is performed in parallel with the operation in which the latch 6 pushes the striker 2 outward from the recess 5c of the base 5b by the biasing force of the coil spring SP1. Further, the pole 71 is returned to the first position ST by the urging force of the coil spring SP2. Further, the rotary switch SW1 detects that the latch 6 is in the open latch position (not the half latch position and the full latch position), and the CPU stops the electric motor 32 in response to the electric signal.

  <Origin return process of drive mechanism after mechanical cancellation> When the next door closing operation is performed from the above state and the door open handle (not shown) is released, the open lever 8 is driven by the urging force of the open handle. Return to the closed (CS) position. Then, the second swing lever 31b is rotated toward the guide surface 14 by the biasing force of the coil spring SP3, and the end of the second swing lever 31b on the latch 6 side is the second end of the latch 6, as shown in FIG. The three projections 6c come into contact with the roller 6j. Then, the half latch state as shown in FIG. 11 is established, and the detected piece 6p of the latch 6 is detected by the first contact Q1 of the rotary switch SW1. At the same time, when the origin switch SW3 detects that the drive mechanism 31 has not returned to the origin, the CPU outputs a control signal to rotate the electric motor 32 in the reverse direction, and the electric motor 32 rotates in the reverse direction (C2 direction). Rotation), the roller 6j is rotated by the second swing lever 31b to get over the third protrusion 6c of the latch 6, and the operation pin 31d is pressed against the guide surface 14. Since the third protrusion 6c is overcome by rotating the roller 6j, it is reliably and smoothly performed. Next, the reverse rotation of the electric motor 32 is further continued, the operation pin 31d further returns in the B2 direction, and finally the first swing lever 31a returns to the home position HP2 (see FIG. 5 and the like). Upon return, the origin switch SW3 detects the return, and based on the detection signal, the CPU stops the electric motor 32 and starts pulling in the striker 2 in the same manner as described above to change from the half latch state to the full latch state. I will do it.

  The return to the origin of the drive mechanism 31 after the mechanical cancellation is not limited to being performed after the next door closing operation is performed. For example, after the motor 32 is rotated forward, the rotary switch The electric motor 32 may be rotated in the reverse direction after various signals from the pole switch SW2 for detecting the SW1 and the pole position.

  In the present embodiment, the half latch state and the full latch state are detected by the rotor switch SW1, but the detection is not limited to the rotary switch SW1 in particular, and the pole switch SW2 and other switches are arranged in other places. May be used. Further, regarding the control of the rotation direction of the electric motor 32, signals from the pole switch SW2 and other switches may be used.

It is a top view of the door closer device for vehicles (full latch state) of the present invention. It is a side view of the door closer device (full latch state) for vehicles of the present invention. It is a front view which shows the principal part of the door closer apparatus for vehicles of FIG. It is AA sectional drawing which shows the principal part of the top view of FIG. It is explanatory drawing which shows the process of door opening operation | movement (and door closing cancellation | release operation | movement). It is explanatory drawing which shows the process of door closing operation | movement (initial stage). It is explanatory drawing which shows the process of a door close operation | movement (close start). It is explanatory drawing which shows the process of a door close operation | movement (close completion). It is explanatory drawing which shows the process of mechanical cancellation operation | movement. It is explanatory drawing which shows the process of mechanical cancellation operation | movement. It is explanatory drawing which shows the process of mechanical cancellation operation | movement. It is a perspective view which shows the motor vehicle which mounted the conventional door closer apparatus in the door. It is a schematic side view which shows the conventional door closer apparatus.

Explanation of symbols

2 ... striker 3 ... actuator 6 ... latch 7 ... lift lever 6c ..... Third protrusion (operated part)
6j ········ Roller (component of the operated part)
6k ················· engagement pin (component of the operated part)
SP2 ... Coil spring SP2 (second biasing member)
8 ... Open lever 8a ... 1st operation piece 8b ... 2nd operation piece 14 ...・ Guide surface (guide wall)
31... Drive mechanism 31a... First swing lever (first swing member)
31b ... 2nd swing lever (2nd swing member / operation part)
31c: arc-shaped end 31d: operation pin (operation unit)
32 ... Electric motor (drive source)
SP3 ... Coil spring SP3 (first biasing member)
71 ... Pole

Claims (3)

A latch that is pivotable from an open position that accepts a striker to a closed position that prohibits the removal of the striker;
An actuator for rotating the latch toward the closed position;
A lift lever having a pole to maintain the closed position of the latch;
An open lever that separates the actuator and the pole from the latch and pivots the latch to an open position;
With
The actuator includes an operation portion that can be engaged with an operated portion provided in the latch, and a drive mechanism that displaces the operation portion in the engaged state along a predetermined path.
The drive mechanism includes a guide wall surface disposed opposite to the operation unit, and a first biasing member capable of pressing the operation unit against the guide wall surface, and the operation unit includes a biasing force of the first biasing member. Is provided to be separated from the guide wall surface by an external force exceeding
The lift lever includes a second urging member, and is urged and supported by the second urging member so that the pawl is returned to a position where the latch is maintained in the closed position.
The open lever includes a first operation piece that contacts the lift lever by rotating and a second operation piece that contacts the operation portion of the actuator and moves away from the guide wall surface. A vehicle door closer device comprising the vehicle door closer device.   The drive mechanism includes a first swing member that is rotated by a drive source, and a second swing member having the operation portion on a distal end side is pivotally supported on the free end side of the first swing member, The operation portion of the second swing member has an arcuate end portion centering on the shaft of the shaft support, and the first biasing member has the second swing member predetermined with respect to the first swing member. A spring member that is urged to swing in the direction so that the operation portion always rotates the latch toward the closed position while maintaining a rotation angle that precedes the free end portion of the first swing member. The vehicle door closer device according to claim 1, wherein the vehicle door closer device is configured.   The operated portion is a protrusion protruding in the radial direction of the rotation shaft of the latch, and the protrusion includes an engaged pin with which the arcuate end portion can be engaged. The door closer device for vehicles according to claim 2.

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