JP2013199814A - Door closer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve miniaturization of a door closer device.SOLUTION: A door closer device comprises: a sun gear 35 supported by a support shaft 34; a planetary gear 36 revolvably engaging with the sun gear 35 while being rotated; a closing lever 38 pivoted by the support shaft 34 and pivoting the planetary gear 36; and a sector gear 39 swingably pivoted by the support shaft 34, and having an external tooth gear 391 engaging with an output gear 322 only on the outside of the periphery of a fan shape separated from a latch 7 farther than the support shaft 34 and an inner tooth gear 392 engaging with the planetary gear 36 only on the inside of the periphery. The planetary gear 36 revolves while being rotated and the closing lever 38 swings around the support shaft 34 in conjunction with swinging of the sector gear 39 on the basis of rotation of the output gear 322, and thereby the latch 7 is moved from a half-latch position to a full-latch position by the closing lever 38.

Description

  The present invention relates to a vehicle door closer device for moving a latch from a half latch position to a full latch position.

Conventionally, as a door closer device for vehicles, there exists a thing as described in patent documents 1, for example.
The door closer device described in Patent Document 1 includes a drive gear fixed to a rotating shaft of an electric motor, a sun gear having a gear portion that is rotatably supported and meshes with the drive gear, and an engaging portion on an outer peripheral surface. A ring gear that is supported coaxially with the sun gear, is engaged with the engagement / disengagement member at the engagement portion and is non-rotatably locked, and is disengaged from the engagement / disengagement member at the engagement portion and is rotatable. The planetary gear rotates with respect to the planetary gear meshed with the sun gear and the ring gear, and the ring gear supported coaxially with the sun gear and connected to the planetary gear and non-rotatably locked by the engagement / disengagement member as the sun gear rotates. A planetary gear mechanism including a carrier that outputs rotational power by revolving and a drive lever that rotates together with the carrier is provided, and the rotational power output from the carrier is transmitted to the drive lever. The latch is moved from the half-latch position to the full-latch position by transferring the door to the latch of the latch mechanism that can hold the door in the half-door state and the fully-closed state, respectively. It performs the closing operation.

JP 2007-138530 A

  However, in the door closer device described in Patent Document 1, since the rotational force of the electric motor can be transmitted to the sun gear, the sun gear is a covered cylinder and has a complicated shape that can accommodate the ring gear, and the sun gear and the ring gear. Since this is a disk shape having gears formed on the entire circumference thereof, the shapes of the sun gear and the ring gear become larger than necessary, leading to an increase in the size of the entire apparatus.

  An object of this invention is to provide the door closer apparatus which enabled size reduction in view of the said subject.

According to the present invention, the above problem is solved as follows.
According to a first aspect of the present invention, there is provided a latch pivotally supported by the housing and pivotable from a half latch position slightly engaged with the striker to a full latch position completely engaged with the striker, and fixed directly or indirectly to the housing. A base member, a motor disposed on the base member, a sun gear supported by the base member by a support shaft, a planetary gear meshing with the sun gear so as to revolve while rotating, and pivotally supported by the support shaft The planetary gear is pivotally supported, and has a close portion that is linked directly or indirectly to the latch at one end closer to the latch than the support shaft. A close lever having a pivot portion for pivotally supporting the planetary gear at the other end that is farther away, and pivotally supported by the pivot shaft And an external gear that meshes with an output gear that can be rotated by the power of the motor only on the outside of the fan-shaped circumference that is farther from the support shaft than the latch, and meshes with the planetary gear only on the inside of the circumference. Sector gears each having an internal gear, and the planetary gear rotates and revolves in conjunction with the swing of the sector gear based on the rotation of the output gear, and the close lever swings about the support shaft Thus, the latch is moved from the half latch position to the full latch position by the close lever.

  According to a second aspect, in the first aspect, the planetary gear is single.

  A third invention is characterized in that, in the first or second invention, the sun gear is provided with an external gear on a fan-shaped circumference.

According to the present invention, the sector gear is an external gear that meshes with the output gear that can be rotated by the power of the motor only on the outside of the fan-shaped circumference far from the support shaft from the latch, and the planetary gear only on the inside of the circumference. By having internal gears that mesh with each other, there is no external gear or internal gear of the sector gear between the latch and the support shaft, so that the support shaft can be moved closer to the latch, and the door closer device. It becomes possible to achieve downsizing.
Furthermore, the structure can be simplified by providing a pivot support portion for pivotally supporting the planetary gear on the close lever.

It is the external appearance perspective view seen from the vehicle inside of the door closer apparatus concerning this invention. It is the disassembled perspective view similarly seen from the vehicle inside of the door closer apparatus. It is the front view similarly seen from the vehicle inside which shows the inside of a door closer apparatus. It is the rear view similarly seen from the vehicle outer side of the door closer apparatus. It is the rear side view of the door closer apparatus seen from the arrow V direction in FIG. FIG. 5 is a front side view of the latch unit as seen from the direction of arrow VI in FIG. 4. It is the perspective view of the principal part seen from the vehicle inner side of the door closer apparatus. It is the perspective view of the principal part seen from the vehicle outer side of the door closer apparatus. It is a front view of the principal part of the door closer apparatus in an open state. It is a front view of the principal part of the door closer apparatus in a half latch state. It is a front view of the principal part of the door closer apparatus in a closed operation state. It is a front view of the principal part of the door closer apparatus in a full latch state. It is a front view of the principal part of the door closer apparatus in a cancellation state. It is a front view of the principal part of the door closer apparatus in the cancellation operation end state. It is the XV-XV line expanded sectional view in FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a door closer 1 is a latch having a latch mechanism that is attached to a rear portion in a sliding door (hereinafter referred to as “door”) of a vehicle and that can be engaged with a striker S that is fixed to a vehicle body side. A closer mechanism that is connected to the unit 2 and the latch mechanism, and operates the latch mechanism from the half latch state to the full latch state so that the door is forcibly closed from the half door state to the fully closed state when the door is closed. And a closer unit 3 having a planetary gear mechanism 33.

  Upper portions of the latch unit 2 and the closer unit 3 are covered with a top cover 60 made of synthetic resin for preventing intrusion of rainwater, dust and the like. The lower part of the closer unit 3 is covered with a synthetic resin under cover 61 for preventing rainwater, dust and the like from entering. Further, the surface of the closer unit 3 facing the outside of the planetary gear mechanism 33 is also covered with the side wall 601 of the top cover 60 and the side wall 611 of the under cover 61.

First, the latch unit 2 will be described.
As shown in FIGS. 1 to 6, the latch unit 2 includes a housing 5 made of a synthetic resin whose mounting surface to the door is closed by a metal-made L-shaped cover plate 4 in a plan view. A latch mechanism is accommodated in the housing 5. 3 and 5 omit the cover plate 4 of the latch unit 2 and the base plate 31 of the closer unit 3 in order to clearly show the internal structure of the latch unit 2 and the closer unit 3.

  The latch mechanism is pivotally attached by a latch shaft 6 facing in the front-rear direction and is latched by a latch 7 engageable with the striker S and a ratchet shaft 8 facing in the front-rear direction. And a ratchet 9 that can selectively engage with the mating portion 71 or the half latch engaging portion 72.

  The cover plate 4 and the housing 5 of the latch unit 2 are respectively provided with striker entry grooves 41 and 51 that face the inside and outside of the vehicle, with the inside of the vehicle open so that the striker S can enter from the inside of the vehicle when the door is closed.

  The latch 7 is closed from the open position shown in FIG. 9 corresponding to the open state of the door detached from the striker S against the biasing force of the spring 16 (see FIG. 2) wound around the latch shaft 6 (see FIG. 2). 9 fully counteracting the door fully engaged with the striker S via the half-latch position shown in FIG. 10 corresponding to the half-door state of the door that is rotated counterclockwise in FIG. It rotates to the full latch position shown in FIGS. 11 and 12 corresponding to the state. In the following description, the “open position”, “half latch position”, and “full latch position” of the latch 7 are referred to as “open state”, “half latch state”, and “full latch state” of the latch mechanism as necessary. I write.

  As clearly shown in FIG. 6, the front side of the housing 5 is pivotally supported by a latch shaft 6, and is pivotally supported by a detection lever 10 and a latch lever 11 that can rotate integrally with the latch 7, and a ratchet shaft 8. Then, an open lever 12 that can rotate integrally with the ratchet 8 is disposed.

  The latch lever 11 rotates integrally with the latch 7 so that when the latch 7 is in the open position, the latch lever 11 faces downward as shown in FIG. 9, and when the latch 7 is in the half latch position, as shown in FIG. When facing the front diagonally downward and the latch 7 is in the full latch position, it faces the front as shown in FIG. The operating portion 111 provided at the tip of the latch lever 11 is retracted out of the movement locus of a closing portion 381 of a closing lever 38 to be described later that constitutes a part of the planetary gear mechanism 33 when the latch 7 is in the open position. Then, the latch 7 enters the movement locus of the closing portion 381 by rotating to the half latch position.

  A connecting shaft 13 facing rearward is fixed to the rotation surfaces of the detection lever 10 and the latch lever 11. The connecting shaft 13 passes through an arc hole 52 centered on the latch shaft 6 provided in the housing 5 and is fixed to the arm portion 73 of the latch 7, whereby the detection lever 10, the latch lever 11 and the latch 7 are integrally rotated. Connect each to move.

  The open lever 12 rotates integrally with the ratchet 9 when the first arm portion 121 facing backward penetrates the arcuate hole 53 centered on the ratchet shaft 8 provided in the housing 5 and fits into the ratchet 9. .

  The half latch position and the full latch position of the latch 7 are detected by a half latch detection switch 14 and a full latch detection switch 15 provided on the front side of the housing 5, and these detection signals are used to stop and drive the motor 321 in the closer unit 2. Is input to a control circuit device (not shown).

  The ratchet 9 is always urged in the engagement direction (counterclockwise in FIGS. 9 to 14) together with the open lever 12 by the urging force of the spring 17 provided on the front surface side of the housing 5, and the latch 7 is shown in FIG. When the latch 7 is in the open position shown in FIG. 10, it abuts on the outer peripheral edge of the latch 7, and when the latch 7 is in the half latch position shown in FIG. Is prevented from rotating in the open direction (clockwise in FIG. 10), and the latch 7 is engaged with the full latch engaging portion 71 of the latch 7 when the latch 7 is in the full latch position shown in FIG. Prevents rotation from position to open direction.

  When the ratchet 9 is engaged with the full latch engaging portion 71 or the half latch engaging portion 72 of the latch 7, when the door opening operation handle H provided on the outside and inside of the door is opened, The ratchet 9 swings in the release direction (clockwise in FIGS. 10 to 12) together with the handle interlocking lever 19 described later against the urging force of the spring 17 and moves to the release position shown in FIGS. The door can be opened by detaching from the full latch engaging portion 71 or the half latch engaging portion 72.

  On the support surface 42 of the cover plate 4, the handle interlocking lever 19, the block lever 20, and the emergency lever 21 are pivotally supported by the support shaft 18 that faces the inside and outside of the vehicle.

  The handle interlocking lever 19 is configured such that a connecting portion 191 provided at a lower portion is connected to a rear end portion of a connecting member 22 formed by a Bowden cable in which a connecting portion 191 is routed in a front-rear direction in the door. To the door opening operation handle H. Thus, when the door opening operation handle H is opened, the handle interlocking lever 19 swings in the releasing direction (counterclockwise) against the urging force of the spring 23 from the neutral position shown in FIGS. And it rotates to the release position shown in FIGS. When the handle interlocking lever 19 is rotated to the release position, the release portion 192 provided at the rear end portion of the handle interlocking lever 19 pushes down the upper end of the second arm portion 122 of the open lever 12 to thereby ratchet through the open lever 12. 9 is rotated in the release direction to disengage the ratchet 9 from the full latch engagement 71 or the half latch engagement portion 72 of the latch 7 to allow the door to be opened.

  The handle interlocking lever 19 is connected to the door opening operation handle via a locking / unlocking mechanism that can be switched between an unlocked state that enables the door opening operation of the door opening operation handle H and a locked state that disables the door opening operation handle H. Therefore, the handle interlocking lever 19 swings in the releasing direction when the door opening operation handle H is operated to open the door when the locking / unlocking mechanism is in the unlocked state. Even if the operation handle H is operated to open the door, it remains in the neutral position and does not swing in the release direction.

  The block lever 20 is held at the block position where the block portion 203 formed at the tip of the arm extending forward is biased forward by the urging force of the spring 23, and the handle interlocking lever 19 rotates in the release direction to release the block lever 20. 13 and 14, the bent portion 193 of the handle interlocking lever 19 abuts from below on the abutting portion 201 provided on itself, and is rotated counterclockwise by a predetermined angle from the block position. Rotate to position.

  When the block lever 20 is held at the block position, the block unit 203 prevents the planetary gear mechanism 33 from rotating counterclockwise in a sun gear 35 described later, and also moves to the cancel position. Thus, the rotation of the sun gear 35 in the counterclockwise direction is made free. As a result, when the block lever 20 is in the block position, the decelerated rotation of the planetary gear mechanism 33 can be transmitted to the latch 7 as will be described later, and when the block lever 20 is also in the cancel position, the planetary gear mechanism 33 Transmission of the deceleration rotation is cut off so that transmission to the latch 7 is impossible.

  The emergency lever 21 is connected to a rear end portion of a connecting member 24 formed by a Bowden cable in which a connecting portion 211 provided at a lower portion is routed in a front-rear direction in the door, and thus does not pass through a locking / unlocking mechanism. The door opening operation handle H or the emergency handle is connected directly or via another lever. Therefore, the emergency lever 21 rotates in the release direction in conjunction with the door opening operation of the door opening operation handle H regardless of whether the locking / unlocking mechanism is in the unlocked state or the locked state.

  When the emergency lever 21 rotates in the release direction, the contact portion 212 provided at the upper end of the emergency lever 21 contacts the bent portion 202 of the block lever 20 from below, so that the block lever 20 has the spring 23. It rotates in the release direction against the urging force. In this case, the handle interlocking lever 19 is held at the neutral position, and the ratchet 9 does not swing in the release direction.

Next, the closer unit 3 will be described.
The closer unit 3 includes a metal base plate (base member) 31 fixed to the support surface 42 of the cover plate 4 in the latch unit 2 by two upper and lower rivets 25, and a front portion of the base plate 31 facing the vehicle exterior. A drive unit 32 that is disposed and includes a motor 321 and a reduction gear that decelerates the rotation of the motor 321; and a central portion of the base plate 31 facing the vehicle exterior (between the latch 7 and the drive unit 32 in the latch unit 2). And a planetary gear mechanism 33 that meshes with an output gear 322 that can rotate about an inward / outward direction shaft that outputs the rotational force of the motor 321 and that can further reduce the rotation of the output gear 322 and output it.

  The planetary gear mechanism 33 has a configuration that outputs a force that moves the latch mechanism in the latch unit 2 from the half latch state to the full latch state, that is, the latch 7 from the half latch position to the full latch position. A sun gear 35 pivotally supported by a support shaft 34 facing in and out of the vehicle, a single planetary gear 36 that meshes with the sun gear 35 so as to revolve while rotating, and is pivotally supported by the support shaft 34 and also in the vehicle interior and exterior direction. A close lever 38 that pivotally supports the planetary gear 36 by a shaft 37 facing the outer periphery, an external gear 391 that is pivotally supported by the support shaft 34 and meshes with the pinion gear 322 outside the circumference, and a planetary gear inside the circumference And sector gears 39 each having an internal gear 392 that meshes with 36.

  As shown in FIG. 9, the sun gear 35 has an external gear 351 that meshes with the planetary gear 36 on the outer side of the fan-shaped circumference having a central angle θ1 of approximately 170 °, and is not formed with the external gear 351. A cylindrical contact portion 352 that protrudes toward the vehicle interior is provided on the rotation surface.

  When the block lever 20 disposed behind the sun gear 35 is in the block position (for example, the position shown in FIGS. 9 to 12), the block portion 203 of the block lever 20 enters the movement locus of the contact portion 352, The abutting portion 352 abuts against the block portion 203 from the counterclockwise direction to block the rotation of the sun gear 35 in the counterclockwise direction, and the block lever 20 is moved to the cancel position (for example, in FIGS. 13 and 14). The block portion 203 of the block lever 20 is retracted out of the movement locus of the contact portion 352 and the sun gear 35 is free to rotate counterclockwise.

  In the state where the planetary gear mechanism 33 is not operated, that is, in the neutral state, the sun gear 35 is set to the neutral position where the external gear 351 is directed downward and the contact portion 352 is located at the highest position.

  In the present embodiment, the sun gear 35 is formed with the external gear 351 outside the fan-shaped circumference having a central angle θ1 of approximately 170 °. However, the present invention is not limited to this, The central angle of the sun gear 35 can be appropriately changed within a range of 90 ° to 180 °.

  The close lever 38 can come into contact with the operating portion 111 of the latch lever 11 at the tip of the arm extending rearward, that is, at one end closer to the latch 7 of the latch unit 2 than the support shaft 34. A planetary gear 36 is pivoted by a shaft 37 at the tip end of an arm having an upward closing portion 381 and extending obliquely downward forward, that is, at the other end farther from the support shaft 34 than the latch 7. It has a pivot 382 for supporting it.

  In the neutral state of the planetary gear mechanism 33, the close lever 38 is provided on the base plate 31 by being biased counterclockwise by a spring 40 having one end hooked to the close lever 38 and the other end hooked to the base plate 31. By contacting the stopper portion 311 from above, the closed portion 381 is set to a neutral position such that the closed portion 381 faces obliquely downward and the pivot portion 382 faces obliquely forward and downward, that is, in the direction in which the output gear 322 is located. Therefore, when the close lever 38 is in the neutral position, the planetary gear 36 and the output gear 322 face each other with the external gear of the sector gear 39 and the internal gear 392 sandwiched therebetween. Thus, when the planetary gear mechanism 33 is in the neutral state, the external gear 391 and the internal gear 392 of the sector gear 39 are sandwiched between the planetary gear 36 and the output gear 322 facing each other. It becomes possible to suppress rattling.

  As shown in FIG. 9, the sector gear 39 is provided with an external gear 391 on the outer side of a fan-shaped circumference having a central angle θ2 of approximately 80 °, and an internal gear 392 on the inner side. Has a support portion 394 formed with a shaft hole 393 for insertion, and an opening portion 395 between the support portion 394 and the internal gear 392 for receiving the planetary gear 36 that meshes with the internal gear 392. The planetary gear 36 rotates and revolves while being accommodated in the opening 395.

  In the neutral state of the planetary gear mechanism 33, the sector gear 39 is set at a neutral position in which the external gear 391 faces forward, that is, in a direction opposite to the direction in which the latch 7 of the latch unit 2 is arranged. Note that the neutral position of the sector gear 39 is detected by a detection switch 41 disposed below the sector gear 39.

  In the upper and lower bridging portions 396 that connect the support portion 394 in the sector gear 39 and the circumferential portion forming the external gear 391 and the internal gear 392, the circumferential portion is closer to the surface of the base plate 31 than the support portion 394. Is provided with a stepped portion 397. Accordingly, as shown in FIG. 15, the external gear 351 of the sun gear 35, the planetary gear 36, and the close lever 38, the sun gear 35, and the sector gear 39 are stacked on the base plate 31 in the axial direction of the support shaft 34. The external gear 391 and the internal gear 392 of the sector gear 39 and the output gear 322 are all arranged side by side on substantially the same plane, so that the support shaft 34 of the planetary gear mechanism 33 is thinned in the axial direction. And a smooth operation can be obtained.

  As shown in FIG. 9, when the block lever 20 is held at the block position, when the sector gear 39 rotates clockwise around the support shaft 34 as the motor 321 rotates in the forward direction, the sun gear 35 at this time. Since the rotation in the counterclockwise direction is blocked by the block portion 203 of the block lever 20, the planetary gear 36 revolves while rotating in the clockwise direction. As a result, the close lever 38 swings while being decelerated from the sector gear 39 in the close direction (clockwise direction) around the support shaft 34, until the close portion 381 faces directly upward as shown in FIG. Rotate.

  As described above, in the planetary gear mechanism 33 according to the present embodiment, the external gear 391 and the internal gear 392 are provided in the sector gear 39, and the single planetary gear 36 that meshes with the internal gear 392 is replaced with the opening 395 of the sector gear 39. Since the single planetary gear 36 rotates and revolves within the opening 395 inside the circumferential portion of the sector gear 39, the planetary gear mechanism 33 is reduced in the circumferential direction. It becomes possible.

  Further, the sector gear 39 has a configuration in which an external gear 391 is provided on the outer side of a fan-shaped circumference having a central angle of 180 ° or less, and an internal gear 392 is also provided on the inner side, and the sun gear 35 has a sector shape having a central angle of 180 ° or less. With the configuration in which the external gear 351 is provided on the outer side of the circumference, the sector gear 39 and the sun gear 35 can be downsized, and the planetary gear mechanism 33 can be downsized.

  Furthermore, since the single planetary gear 36 is directly pivotally supported on the pivotal portion 382 of the close lever 38, the number of parts can be reduced and the operation of the close lever 38 can be made smooth.

  Furthermore, when the sector gear 39 is in the neutral position, the external gear 391 and the internal gear 392 are provided only at positions away from the support shaft 34 with respect to the latch 7, whereby the latch 7 and the planetary gear mechanism 33. Since the external gear 391 and the internal gear 392 of the sector gear 39 do not exist between the support shafts 34, the support shaft 34 of the planetary gear mechanism 33 can be brought closer to the latch 7, and the door closer device 1 can be reduced in size. Can be achieved.

Next, operation | movement of the door closer apparatus 1 of this invention is demonstrated.
When the door is open, the latch unit 2 is in the open state with the latch 7 in the open position, as shown in FIG. 9, and the planetary gear mechanism 33 of the closer unit 3 is in the neutral state. The block lever 20 is in the block position. In this state, the contact portion 352 of the sun gear 35 faces the block portion 203 of the block lever 20 via a slight gap.

  When the door is closed to the half-door position in the above-described state, as shown in FIG. 10, the latch 7 is rotated to the half-latch position, and the ratchet 9 is engaged with the half-latch engagement portion 72 of the latch 7. . At this time, the operating portion 111 of the latch lever 11 enters the movement locus of the closing portion 381 of the closing lever 38 by the rotation of the latch 7 to the half latch position.

  When the half latch detection switch 14 detects that the latch 7 has been rotated to the half latch position, the motor 321 is normally controlled by the control circuit device. As a result, as shown in FIG. 10, the output gear 322 rotates counterclockwise in the direction of the arrow, and the sector gear 39 swings about the support shaft 34 in the clockwise direction in the direction of the arrow. At this time, since the block lever 20 is in the block position and the block portion 203 is in a position where it can come into contact with the contact portion 352 of the sun gear 35, the sun gear 35 is slightly swung counterclockwise and then the contact portion. When 352 abuts against the block portion 203, the rocking in the counterclockwise direction is blocked. As a result, the planetary gear 36 revolves while rotating clockwise while being accommodated in the opening 395 of the sector gear 39.

  The close lever 38 swings in the close direction (clockwise) in the arrow direction against the urging force of the spring 40 as the planetary gear 36 revolves in the clockwise direction, and the close part 381 moves upward. The operating part 111 of the latch lever 11 is pushed up, and the latch lever 11 is swung counterclockwise. Accordingly, as shown in FIG. 11, the latch 7 swings from the half latch position to the full latch position. When the full latch detection switch 15 detects the full latch position of the latch 7, the motor 321 is temporarily stopped by the control circuit device and then immediately reversed.

  When the motor 321 is reversely controlled, the sector gear 39 reverses counterclockwise, and the planetary gear 36 revolves while rotating counterclockwise. The close lever 38 is reversed and returned to the neutral position by the counterclockwise urging force of the spring 40 in combination with the revolution of the planetary gear 36. When the detection switch 41 detects the neutral position of the close lever 38, the motor 321 is controlled to stop, the planetary gear mechanism 33 returns to the neutral state before the operation, and all the series of close operations are completed.

Next, a cancel operation for interrupting the close operation will be described.
For example, in the middle of the transition from the half-latch state shown in FIG. 10 to the full-latch state shown in FIG. When the door opening operation handle H is operated to open the door, the motor 321 is controlled to stop, and as shown in FIG. 13, the handle interlocking lever 19 swings in the releasing direction via the connecting member 22, and the releasing portion 192 is moved. The second arm portion 122 of the open lever 12 is pushed down to swing the ratchet 9 together with the open lever 12 in the release direction.

  As shown in FIG. 13, when the ratchet 9 swings in the release direction, the ratchet 9 is held at a release position where it cannot be engaged with the full latch engagement portion 71 and the half latch engagement portion 72 of the latch 7. At the same time, the bent portion 193 of the handle interlocking lever 19 abuts against the abutting portion 201 of the block lever 20, so that the block lever 20 swings to the cancel position against the urging force of the spring 23. The block 203 is retracted out of the movement locus of the contact portion 352 of the sun gear 35, and the sun gear 35 is free to turn counterclockwise. As a result, the transmission of deceleration from the sector gear 39 to the planetary gear 36 is interrupted, and as shown in FIG. 14, the close lever 38 is reversed to the neutral position by the biasing force of the spring 40, and the latch 7 is moved to the open position. The door can be opened by swinging.

  When the door opening operation is stopped by opening the door and the door opening operation handle H is stopped, the motor 321 is reversely controlled, the sector gear 39 swings toward the neutral position, and the sun gear 35 moves along with the swing of the sector gear 39. As the planetary gear 36 rotates and revolves, it returns to the neutral position. This completes a series of cancel operations. Therefore, it is possible to improve the safety by interrupting the closing operation when the close lever 38 is operating and avoiding the risk of foreign matter being caught between the door and the entrance of the vehicle body.

  As for the cancel operation, the close operation can be interrupted in the same manner as described above by swinging the emergency lever 21 in the release direction and swinging the block lever 20 to the cancel position. However, in this case, since the ratchet 9 does not swing in the release direction, the door cannot be opened.

The embodiment of the present invention has been described above, but various modifications and changes such as the following can be made without departing from the scope of the present invention.
(1) The close portion 381 of the close lever 38 is directly linked to the latch 7 without using the latch lever 11.
(2) Instead of fixing the base plate 31 in the closer unit 2 to the cover plate 4 in the latch unit 2, the base plate 31 is fixed to the housing 5 directly or via other elements.
(3) The block lever 20 is omitted, and the sun gear 35 is supported by the support shaft 34 so as not to rotate.

DESCRIPTION OF SYMBOLS 1 Door closer 2 Latch unit 3 Closer unit 4 Cover plate 5 Housing 6 Latch shaft 7 Latch 8 Ratchet shaft 9 Ratchet 10 Detection lever 11 Latch lever 12 Open lever 13 Connection shaft 14 Half latch detection switch 15 Full latch detection switch 16 Spring 17 Spring 18 Support Shaft 19 Handle interlocking lever 20 Block lever 21 Emergency lever 22 Connecting member 23 Spring 24 Connecting member 25 Rivet 31 Base plate (base member)
32 drive unit 33 planetary gear mechanism 34 support shaft 35 sun gear 36 planetary gear 37 shaft 38 close lever 39 sector gear 40 spring 41 striker entry groove 42 support surface 51 striker entry groove 52, 53 arc hole 60 top cover 61 under cover 62 detection switch 71 Full latch engaging part 72 Half latch engaging part 73 Arm part 111 Actuating part 121 First arm part 122 Second arm part 191 Connecting part 192 Release part 193 Bending part 201 Abutting part 202 Bending part 203 Block part 211 Connecting Part 212 contact part 311 stopper part 321 motor 322 output gear 351 external gear 352 contact part 381 close part 382 pivot part 391 external gear 392 internal gear 393 shaft hole 394 support part 395 opening part 396 bridging part 397 step part 601 Side wall 6 1 side wall H door opening operation handle S striker

Claims (3)

A latch pivotally supported by the housing and pivotable from a half latch position slightly engaged with the striker to a full latch position fully engaged with the striker;
A base member fixed directly or indirectly to the housing;
A motor disposed on the base member;
A sun gear supported by a support shaft on the base member;
A planetary gear that meshes with the sun gear so as to revolve while rotating,
And pivotally supported by the support shaft and pivotally supporting the planetary gear, and having a close portion linked directly or indirectly to the latch at one end closer to the latch than the support shaft, A close lever having a pivot portion for pivotally supporting the planetary gear at the other end portion farther away from the support shaft than the latch;
An external gear that is pivotally supported by the support shaft and meshes with an output gear that can be rotated by the power of the motor only on the outside of a sector-shaped circumference far from the support shaft from the latch, A sector gear having internal gears meshing with the planetary gear only on the inside of the circumference,
The planetary gear rotates and revolves in conjunction with the swing of the sector gear based on the rotation of the output gear, so that the close lever swings around the support shaft, thereby the latch by the close lever. A door closer device that is moved from a half latch position to a full latch position.   The door closer apparatus according to claim 1, wherein the planetary gear is single.   The door closer device according to claim 1 or 2, wherein the sun gear is provided with an external gear on a fan-shaped circumference.

Images