JP2007009514A - Automatic opening and closing device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the operability of a clutch device by keeping a connected state or an interrupted state, even if an operation part is not operated continuously. <P>SOLUTION: A sliding door 14 is provided with a drum 27, around which a cable 23 fixed to a vehicle body is laid, and an electric motor 34 which rotatively drives the drum 27 so that the sliding door 14 can make an opening/closing motion. A clutch device 41 is provided between the drum 27 and the electric motor 34. The clutch device 41 is provided with a driving-side disc and a driven-side disc, which are provided in such a manner as to be freely engaged/disengaged in the axial direction, and an index plate 44 for axially driving the driving-side disc is provided on an upside case 18a. The index plate 44 is driven by a switching mechanism 61 and turned by each predetermined angle; the driving-side disc is axially driven each time the index plate is turned by the predetermined angle; and the clutch device 41 alternately switches between the connected state and the interrupted state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an automatic opening / closing device for a vehicle that automatically opens and closes an opening / closing body provided in a vehicle, and more particularly, to facilitate a manual opening / closing operation of the opening / closing body, a clutch device is provided between a drive source and the opening / closing body. It relates to what is provided.

  In an automatic opening / closing device for a vehicle that automatically opens and closes an opening / closing body such as a door provided in a vehicle such as an automobile by a drive source such as an electric motor, a clutch device is provided between the electric motor and the door. When the door is manually opened and closed, the power transmission path between the electric motor and the door is blocked by the clutch device so that the door can be easily opened and closed manually. When the door is stopped at an intermediate position between the fully open position and the fully closed position, a braking force is applied to the door by switching the clutch device to the connected state, and the door is held at the intermediate position.

  The clutch device used in such an opening / closing device includes a driving-side rotating body that is rotationally driven by an electric motor, and a driven-side rotating body that rotates in conjunction with the opening / closing operation of the door. An electromagnetic clutch is known in which a magnetic attractive force generated by a coil is pressed against each other to switch to a connected state. In this case, the clutch coil is energized by a control device in response to a command signal from a door handle or an open / close switch. Thus, the clutch device is switched between a connected state and a disconnected state. However, when the electromagnetic clutch is energized while the vehicle is stopped, the battery is exhausted quickly. In addition, when the vehicle is parked on a sloping ground, if the battery is depleted, the electromagnetic clutch connection holding force weakens, and the opening / closing body slides downward with its own weight during the automatic opening / closing operation of the opening / closing body. Is also possible. Furthermore, since such an electromagnetic clutch requires a clutch coil, a control device, and the like, it is generally expensive and increases the cost of the switchgear. In view of this, an opening / closing device has been developed that uses a mechanical clutch device in which the intermittent operation of the clutch device is manually performed, thereby reducing the cost compared to the case of using an electromagnetic clutch.

In Patent Document 1, an arm for switching the clutch device from a connected state to a cut-off state is provided in a clutch device provided between an electric motor and a door, and the arm is connected to a door handle by a wire. An automatic opening and closing device is described in which the arm is operated by operating the. According to this automatic opening and closing device, when the door handle is operated by the operator, the clutch device is switched to the disengaged state, so that the operator moves the door in the opening and closing direction while operating the door handle. Can be manually opened and closed. Further, since the clutch device is switched to the connected state when the operation of the door handle is released, the operator can stop the door at an arbitrary midway position by releasing the hand from the door handle.
Japanese Patent Application Laid-Open No. 5-113074

  However, the clutch device disclosed in Patent Document 1 has a structure in which the clutch device is in a disconnected state only while the operator operates the door handle. Therefore, in order to manually open and close the door, The operator needs to move the door while operating the door handle, and improvement of the operability has been desired.

  An object of the present invention is to improve operability when manually operating an opening / closing body by maintaining a clutch device in a connected state or a disconnected state without continuing to operate an operation unit.

  An automatic opening / closing apparatus for a vehicle according to the present invention is an automatic opening / closing apparatus for a vehicle that automatically opens / closes an opening / closing body provided in the vehicle, the driving source for opening / closing the opening / closing body, the drive source, and the opening / closing body. A clutch device for intermittently transmitting power between the drive source and the opening / closing body, and an operating means operated by an operator to manually open / close the opening / closing body, Each time the operating means is operated, the clutch device is alternately switched between a connected state and a disconnected state.

  The automatic opening / closing device for a vehicle according to the present invention is characterized in that the clutch device and the operating means are provided in the opening / closing body.

  The automatic opening / closing device for a vehicle according to the present invention includes a guide rail that is fixed to a side portion of the vehicle and that guides the opening / closing body so as to be movable in the longitudinal direction of the vehicle, and both ends are fixed to the vehicle at both ends of the guide rail. And a rotary body that is stretched and driven by the drive source. The drive source, the operation unit, and the rotary body are provided in the opening / closing body, and the drive The clutch device is provided between a source and the rotating body.

  The automatic opening / closing device for a vehicle according to the present invention is characterized in that the drive source, the clutch device, and the rotating body are provided on an arm member fixed to the opening / closing body and guided by the guide rail.

  The automatic opening / closing device for a vehicle according to the present invention is provided with a driving side rotating body that is rotationally driven by the drive source, and is provided to be able to engage and disengage in the axial direction with respect to the driving side rotating body. An index that drives the driving side rotating body or the driven side rotating body in the axial direction by alternately moving to the first and second positions that are different in the axial direction every time it rotates by a predetermined angle. And a switching mechanism that holds the position of the index member when the operation of the operation unit is released by rotating the index member by a predetermined angle when the operation unit linked to the operation means is operated. It is provided in the apparatus.

  According to the present invention, the clutch device can be alternately switched between the connected state and the disconnected state every time the operation unit is operated, and the clutch device is kept in the connected state or the disconnected state until the operation unit is operated again. Can be held. Therefore, it is not necessary to continue operating the operation unit when manually opening and closing the opening / closing body, and the operability when manually opening and closing the opening / closing body can be improved. In addition, after the opening / closing member is manually opened / closed, the opening / closing member can be easily stopped and held at any intermediate position by operating the operation unit again. Furthermore, since the clutch device is mechanically held in the connected state when switched to the connected state, the clutch device is not unexpectedly switched to the disconnected state even when power supply to the device is cut off. .

  Further, according to the present invention, since the operating part is provided on the opening / closing body, the operation of the operating part can be used to operate the clutch device and the manual opening / closing operation of the opening / closing body. The operability when manually opening and closing can be further improved.

  Furthermore, according to the present invention, the drive source and the clutch device are provided on the arm member fixed to the opening / closing body and guided by the guide rail. However, the drive source and the clutch device do not interfere with other devices arranged inside the opening / closing body, and the layout of these devices can be improved. In addition, since the drive source and the clutch device can be mounted on the arm member after the opening / closing body is mounted on the vehicle, the mountability of the vehicle automatic opening / closing device on the vehicle is improved. Further, since the drive source and the clutch device can be attached to the arm member after the opening / closing body is attached to the vehicle, it is possible to easily separate the specification between the vehicle equipped with the vehicle automatic opening / closing device and the vehicle not equipped. it can.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a side view schematically showing a vehicle on which an automatic opening / closing device for a vehicle according to an embodiment of the present invention is mounted. The vehicle 11 has an entrance / exit 13 provided on a side portion of the vehicle body 12. A sliding door 14 is provided as an opening / closing body.

  FIG. 2 is an explanatory view showing the mounting structure of the slide door shown in FIG. 1 to the vehicle body. The center arm 15 is fixed to the end of the slide door 14 on the vehicle rear side, and the door 13 is located on the vehicle rear side. A center rail 16 is fixed at a substantially middle portion in the vehicle vertical direction, and the center arm 15 is guided by the center rail 16 and is movable in the vehicle longitudinal direction. An upper arm (not shown) is fixed to the front side of the slide door 14 at the upper end thereof, and an upper rail 17 is fixed to the vehicle body 12 at the upper edge of the entrance 13. The upper arm is guided by the upper rail 17 and is movable in the longitudinal direction of the vehicle. Further, a lower arm 18 as an arm member is fixed to the vehicle front side of the slide door 14 at a lower end portion thereof, and a side portion of the vehicle body 12 is positioned at a lower edge portion of the entrance 13 as a guide rail. The lower rail 19 is fixed, and the lower arm 18 is guided by the lower rail 19 and is movable in the vehicle front-rear direction. As described above, the slide door 14 is guided to the center rail 16 at the rear end portion and guided to the upper rail 17 and the lower rail 19 at the front end portion, and is fully opened and indicated by a broken line in FIG. It is movable in the vehicle front-rear direction, that is, can be opened and closed with respect to the closed position. In addition, a retracting portion that bends toward the inside of the vehicle body 12 is provided on the vehicle front side of each rail 16, 17, 19. When the slide door 14 is closed to the fully closed position, each arm 15, 18 is retracted. The sliding door 14 is drawn into the inside of the vehicle body 12 and is closed.

  FIG. 3 is a partially cutaway perspective view showing an automatic opening and closing device for a vehicle. In order to automatically open and close the sliding door 14, the vehicle 11 includes an automatic opening and closing device 21 for vehicles (hereinafter referred to as an opening and closing device 21). .) Is provided. The opening / closing device 21 has a drive unit 22 provided on the slide door 14 side and a cable 23 as a striated body whose both ends are fixed to the vehicle body 12, and the slide door is pulled by pulling the cable 23 with the drive unit 22. This is a so-called self-propelled type in which 14 is opened and closed.

  4 is a perspective view showing details of the lower arm shown in FIG. 3, FIG. 5 is a front view showing the layout of the drive unit shown in FIG. 4, and FIG. 6 is a cross-sectional view taken along line AA shown in FIG. It is.

  As shown in FIGS. 4 and 6, the lower arm 18 is configured by combining an upper case 18a and a lower case 18b formed in a bathtub shape with a steel plate or the like, and is provided at a base end portion (slide door side) thereof. The flange portion 18c is fixed to the slide door 14 by welding or a fastening member. Further, a roller assembly 24 for guiding the lower arm 18 to the lower rail 19 is provided at the tip of the lower arm 18 (on the side opposite to the slide door). The roller assembly 24 is freely rotatable on the base bracket 24a and the base bracket 24a. The base bracket 24a is supported by a pin member 25 between the upper case 18a and the lower case 18b and is swingable with respect to the lower arm 18 and has a pair of guide rollers 24b and a traveling roller 24c. It has become. The guide roller 24b is supported by the base bracket 24a so as to face upward. On the other hand, the lower rail 19 is formed in a U-shape with the opening facing downward, and the guide roller 24b is incorporated in the lower rail 19. Thus, it rotates along the lower rail 19. The traveling roller 24c is supported laterally by the base bracket 24a, while the vehicle body 12 is provided with a traveling panel 26 facing the lower rail 19, and the traveling roller 24c travels on the traveling panel 26. It is supposed to be. In this way, the lower arm 18 moves along the lower rail 19 by traveling on the traveling panel 26 while the roller assembly 24 is guided by the lower rail 19. Further, since the base bracket 24 a is swingable in the horizontal plane with respect to the lower arm 18, the lower arm 18 can follow the lower rail 19 even when the roller assembly 24 reaches the retracted portion of the lower rail 19.

  The space between the upper case 18 a and the lower case 18 b of the lower arm 18, that is, the interior of the lower arm 18, is formed in a hollow shape, and the drive unit 22 is integrated into the lower arm 18 and is configured integrally with the lower arm 18. .

  The drive unit 22 has a drum 27 as a rotating body. As shown in FIG. 6, a sliding bearing 28 is fixed by press-fitting into a mounting hole 27 a formed in the shaft center of the drum 27. A rotating shaft 29 is mounted on the inner side of the shaft so as to be relatively rotatable and movable in the axial direction. The rotary shaft 29 is rotatably supported inside the lower arm 18, that is, the drum 27 is accommodated inside the lower arm 18 in a state of being supported rotatably relative to the rotary shaft 29 via the slide bearing 28. . A spiral guide groove 27b is formed on the outer peripheral surface of the drum 27, and the cable 23 serving as a cable body is looped around the guide groove 27b a plurality of times, that is, wound around the drum 27. One end of the cable 23 is guided to the vehicle front side via a guide pulley 31a rotatably supported by the lower case 18b, and is fixed to the vehicle body 12 at one end of the lower rail 19, that is, at the end on the vehicle front side. The other end of the cable 23 is guided to the vehicle rear side via a guide pulley 31b rotatably supported by the lower case 18b, and is fixed to the vehicle body 12 at the other end side of the lower rail 19, that is, the end portion on the vehicle rear side. Has been.

  As shown in FIG. 3, tensioners 32 and 33 for generating a predetermined tension on the cable 23 are provided at both ends of the cable 23, and the both ends of the cable 23 are connected to the vehicle body via these tensioners 32 and 33. 12 is fixed.

  In order to open and close the slide door 14, the drive unit 22 is provided with an electric motor 34 as a drive source. In the illustrated case, a DC motor with a brush is used as the electric motor 34, and its output shaft 34a is rotatable forward and backward. In order to control the operation of the electric motor 34, the electric motor 34 is connected to a control device (not shown) having a CPU, a memory and the like, and an operation signal from an opening / closing switch (not shown) provided in a driver's seat, a portable terminal or the like. Accordingly, the operation of the electric motor 34 is controlled by the control device.

  As shown in FIG. 6, the electric motor 34 is fixed to the upper case 18a, its output shaft 34a projects into the lower arm 18, a drive pulley 35 is fixed to the tip of the output shaft 34a, A belt 36 is stretched over. On the other hand, a driven pulley 37 positioned below the drum 27 and having a diameter larger than that of the drive pulley 35 is mounted on the rotary shaft 29, and a belt 36 is stretched around the driven pulley 37. Thus, when the electric motor 34 is operated, the rotation of the output shaft 34a is decelerated at a predetermined reduction ratio via the driving pulley 35, the belt 36 and the driven pulley 37 and transmitted to the rotating shaft 29, and the rotating shaft 29 rotates. . Further, as shown in FIG. 6, the drive unit 22 is provided between the rotary shaft 29 and the drum 27 (that is, between the electric motor 34 and the drum 27 and between the electric motor 34 and the slide door 14). A clutch device 41 is provided, and the rotation of the rotary shaft 29 is transmitted to the drum 27 via the clutch device 41, whereby the drum 27 is rotationally driven by the electric motor 34. Details of the clutch device 41 will be described later.

  When the drum 27 is rotationally driven by the electric motor 34, either the vehicle front side or the rear side of the cable 23 is wound around the drum 27 and the other side is rewound from the drum 27. As the cable 23 is pulled, the sliding door 14 opens and closes. For example, when the open side of the open / close switch is operated, the control device causes the electric motor 34 to rotate forward, so that the vehicle rear side of the cable 23 is wound around the drum 27 and the front side is unwound from the drum 27. The sliding door 14 is automatically opened by being pulled. On the contrary, when the closing side of the open / close switch is operated, the control device reversely rotates the electric motor 34, whereby the vehicle front side of the cable 23 is wound around the drum 27 and the rear side is unwound from the drum 27. The sliding door 14 is automatically closed by being pulled. As described above, the slide door 14 is automatically opened and closed by being driven to open and close by the electric motor 34 provided in the lower arm 18.

  FIG. 7 is a cross-sectional view showing the details of the clutch device. The clutch device 41 transmits the output of the electric motor 34 to the slide door 14 between the electric motor 34 and the slide door 14 and drives the slide door 14 to open and close. The sliding door 14 is automatically opened and closed by the electric motor 34 by intermittently transmitting power between the electric motor 34 and the sliding door 14, and the sliding door 14. The operation force when manually opening and closing the is reduced.

  As shown in FIG. 7, the clutch device 41 includes a driving side disk 42 as a driving side rotating body formed integrally with the rotating shaft 29 at one end of the rotating shaft 29, and the sliding bearing 28 at one end of the sliding bearing 28. And a driven side disk 43 as a driven side rotating body. The driving side disk 42 is rotationally driven by the electric motor 34 together with the rotating shaft 29, and the driven side disk 43 and the drum 27 are slide doors. 14 is rotated in conjunction with the opening / closing operation 14. The rotary shaft 29 is mounted on the driven pulley 37 so as to be movable in the axial direction and is also movable in the axial direction with respect to the sliding bearing 28, whereby the drive side disk 42 is moved to the driven side disk 43. On the other hand, it is relatively movable in the axial direction.

  The drive-side disk 42 and the driven-side disk 43 are coaxially arranged in the axial direction, the friction surfaces thereof are opposed to each other, and the drive-side disk 42 together with the rotating shaft 29 faces the driven-side disk 43. When moved in the axial direction, the friction surface of the drive side disk 42 and the friction surface of the driven side disk 43 are engaged. When the friction surfaces engage with each other, the clutch device 41 is switched to the connected state, and the power of the electric motor 34 is transmitted to the slide door 14. On the contrary, when the drive side disk 42 moves together with the rotary shaft 29 in the direction away from the driven side disk 43, the engagement between the friction surface of the drive side disk 42 and the friction surface of the driven side disk 43 is released. When the engagement of the friction surfaces is released, the clutch device 41 is cut off, and the power transmission between the electric motor 34 and the slide door 14 is cut off. In this way, the drive side disk 42 and the driven side disk 43 are freely engageable and disengageable in the axial direction, whereby the clutch device 41 intermittently transmits power between the electric motor 34 and the slide door 14. can do.

  In order to drive the drive side disk 42 in the axial direction and switch the clutch device 41 between the connected state and the disconnected state, the clutch device 41 is provided with an index plate 44 as an index member.

  FIG. 8 is a front view showing the details of the index plate shown in FIG. 7, and this index plate 44 is formed in a disc shape by, for example, a steel plate or the like, and the lower arm 18 for accommodating the drive side disk 42 and the driven side disk 43. It is arranged outside the upper case 18a. Eight index gears 45 arranged at predetermined angles (every 45 degrees) in the circumferential direction are formed on the outer peripheral portion of the index plate 44, and each index gear 45 is engaged with a locking surface 45a along the radial direction. A relief surface 45b that is inclined with respect to the surface 45a is provided. Further, on the surface of the index plate 44 on the side facing the outer surface of the upper case 18a, there are four hemispherical protrusions 46 that protrude toward the upper case 18a, for example, by embossing, arranged in every 90 degrees in the circumferential direction. Is formed.

  A movable shaft 47 as a movable body is supported on the upper case 18a coaxially with the drive side disk 42 and the driven side disk 43 so as to be rotatable and movable in the axial direction. The index plate 44 has an axial center thereof. In the mounting hole 44a formed in the upper end of the movable shaft 47, the distal end of the movable shaft 47 is relatively rotatable, and is mounted so as to move integrally with the movable shaft 47 in the axial direction. That is, in the illustrated case, the index plate 44, the drive side disk 42, and the driven side disk 43 are arranged coaxially, thereby simplifying the configuration of the clutch device 41.

  As shown in FIG. 7, a flange portion 47a is formed at the base end portion of the movable shaft 47, and the movable shaft 47 is opposed to the rear surface of the drive side disk 42 in the flange portion 47a from the axial direction with a slight gap. ing. A metal ball 48 is sandwiched between the flange portion 47 a and the drive side disk 42, so that the movable shaft 47 is rotatable relative to the drive side disk 42. Therefore, even if the drive side disk 42 is rotationally driven by the electric motor 34, the rotation is not transmitted to the movable shaft 47.

  A return spring 51 as a power transmission elastic body is mounted between the flange portion 47a of the movable shaft 47 and the upper case 18a, and the movable shaft 47 approaches the driven disk 43 by the elastic force of the return spring 51 ( The index plate 44 is also urged in a direction approaching the upper case 18 a by the elastic force of the return spring 51. A return spring 52 as a power cutoff elastic body is mounted between the rotary shaft 29 and the lower case 18b, and the rotary shaft 29 is urged toward the upper case 18a by the elastic force of the return spring 52. ing. That is, the drive side disk 42 is biased in a direction away from the driven side disk 43 and in contact with the movable shaft 47, so that the drive side disk 42 always moves in the axial direction together with the movable shaft 47. Therefore, by moving the movable shaft 47 in the axial direction, the drive-side disk 42 can be engaged with the driven-side disk 43 and the engagement with the driven-side disk 43 can be released. The elastic force of the return spring 51 is set stronger than the elastic force of the return spring 52.

  Thus, the return spring 51 urges the index plate 44 in the direction in which the drive side disk 42 and the driven side disk 43 are engaged, and the return spring 52 causes the drive side disk 42 to engage with the driven side disk 43. The clutch device 41 can be intermittently moved by moving the movable shaft 47 in the axial direction.

  FIG. 9 is a front view showing the recess formed in the upper case, and FIGS. 10A to 10C are explanatory views showing the positional relationship between the protrusion and the large-diameter recess or the small-diameter recess as the index plate rotates. is there. FIG. 11 (a) is a cross-sectional view showing a disconnected state of the clutch device, and FIG. 11 (b) is a cross-sectional view showing a connected state of the clutch device.

  As shown in FIG. 9, four large-diameter concave portions 53 as concave portions are formed on the outer surface of the upper case 18 a so as to be arranged at every 90 degrees in the circumferential direction, and are respectively positioned in the middle of the large-diameter concave portion 53. Four small-diameter recesses 54 are formed side by side in the circumferential direction every 90 degrees. As shown in FIG. 10A, when the index plate 44 is in a predetermined position, all the four projections 46 of the index plate 44 engage with the small-diameter concave portion 54, and the index plate from the state shown in FIG. When the shaft 44 is rotated by a predetermined angle (45 degrees) about the movable shaft 47 as an axis, as shown in FIG. 10B, all the four protrusions 46 of the index plate 44 engage with the large-diameter recess 53, and When the index plate 44 rotates by a predetermined angle (45 degrees) about the movable shaft 47 as an axis, all the four protrusions 46 of the index plate 44 are engaged with the small-diameter recess 54 again as shown in FIG. It is like that. Thus, the projections 46 of the index plate 44 are alternately engaged with the large-diameter recesses 53 and the small-diameter recesses 54 by rotating the index plate 44 by a predetermined angle (every 45 degrees) about the movable shaft 47 as an axis. In other words, each time the index plate 44 rotates by a predetermined angle, the protrusion 46 engages and disengages from the large-diameter recess 53. Further, when the projection 46 is engaged with each of the recesses 53 and 54, the index plate 44 is held at its rotational position at every predetermined angle.

  The large-diameter concave portion 53 and the small-diameter concave portion 54 are each formed as a hemispherical depression, and the outer diameter of the large-diameter concave portion 53 is larger than the outer diameter of the small-diameter concave portion 54. That is, the amount of recess in the axial direction is larger than that of the small-diameter recess 54.

  When the projection 46 of the index plate 44 is engaged with the small-diameter concave portion 54, the index plate 44 is in the state where the projection 46 is pressed against the small-diameter concave portion 54 by the elastic force of the return spring 51, as shown in FIG. It is held at a first position that is a predetermined distance away from the outer surface of the case 18a in the axial direction. As a result, the movable shaft 47 is held at a position away from the driven disk 43, and the driving disk 42 pressed against the movable shaft 47 by the elastic force of the return spring 52 is also held at a position away from the driven disk 43. Thus, when the projection 46 of the index plate 44 is engaged with the small-diameter concave portion 54, the engagement of the drive side disk 42 and the driven side disk 43 is released, and the clutch device 41 is brought into a disconnected state.

  On the other hand, the index plate 44 rotates by a predetermined angle from the state shown in FIG. 11A, and the projection 46 of the index plate 44 engages with the large-diameter recess 53 deeper than the small-diameter recess 54 as shown in FIG. Then, the position where the projection 46 is supported by the large-diameter recess 53 is closer to the driven disk 43 than the position where the projection 46 is supported by the small-diameter recess 54, so that the index plate 44 is positioned on the upper case 18a with respect to the first position. It moves to a second position that is different in the axial direction toward the outer surface. When the index plate 44 moves to the second position, the displacement is transmitted to the drive side disk 42 via the movable shaft 47, whereby the drive side disk 42 is driven in the axial direction by the index plate 44 and driven side disk 43. Engage with.

  In this way, each time the index plate 44 rotates by a predetermined angle, the projection 46 engages and disengages from the large-diameter recess 53 and alternately moves to the first and second positions. Is driven in the axial direction to switch the clutch device 41 between a connected state and a disconnected state.

  FIG. 12 is a front view showing details of the switching mechanism, and FIGS. 13A to 13F are front views showing a process in which the index plate is rotated by a predetermined angle by the switching mechanism.

  In order to rotate the index plate 44 at every predetermined angle, the clutch device 41 is provided with a switching mechanism 61. As shown in FIG. 12, the switching mechanism 61 is disposed outside the upper case 18 a of the lower arm 18, and is a slider as an operation unit supported by a pair of pin portions 62 so as to be linearly reciprocable on the upper case 18 a. 63. A finger 64 is mounted on the slider 63 by a pin member 65 so as to be swingable between a locking position indicated by a solid line in the figure and an escape position indicated by a one-dot chain line in the figure. An elastic member (not shown) for energizing the slider 63 is attached to the slider 63.

  On the other hand, as shown in FIGS. 1 and 2, in order to manually open and close the slide door 14, the slide door 14 is provided with a door handle 66 as an operation means for linearly reciprocating the slider 63. 63 is connected to a door handle 66 through a wire 67. When the door handle 66 is operated, the slider 63 moves from the position (original position) shown in FIG. 12 in the direction indicated by the arrow in cooperation with the door handle 66, and the operation of the door handle 66 is released, that is, from the door handle 66. When the hand is released, the slider 63 is moved to the original position by the elastic force of the return spring 68 mounted between the upper case 18a. As described above, when the door handle 66 is operated by an operator such as an occupant, the slider 63 reciprocates linearly.

  The finger 64 is engaged with the index gear 45 of the index plate 44 when the door handle 66 is operated and the slider 63 moves in the direction of the arrow from the original position, and the index gear 45 is pushed in the rotation direction to rotate the index plate 44 by a predetermined angle. It has become. Further, when the operation of the door handle 66 is released and the slider 63 returns to the original position, the finger 64 is not engaged with the index gear 45 and the rotation position of the index plate 44 is maintained. That is, as shown in FIG. 13A, when the door handle 66 is operated when the slider 63 is in the original position, the slider 63 moves in the direction of the arrow, and as shown in FIG. Engages with the locking surface 45 a of the index gear 45. When the slider 63 further moves from this state, as shown in FIG. 13C, the index plate 44 is driven by the slider 63 via the fingers 64 and rotates by a predetermined angle. At this time, the protrusion 46 of the index plate 44 engages with the large-diameter recess 53 or the small-diameter recess 54, whereby the index plate 44 is held in its position. When the operation of the door handle 66 is released from this state, the slider 63 moves toward the original position by the elastic force of the return spring 68, and the finger 64 is released from the index gear 45 as shown in FIG. 45b is contacted. However, the relief surface 45b of the index gear 45 is inclined with respect to the locking surface 45a, and the end surface of the finger 64 in contact with the escape surface 45b is also inclined in accordance with the relief surface 45b. It is pushed by the surface 45b and swings to the escape position. As a result, as shown in FIG. 13 (e), the finger 64 can be moved beyond the index gear 45 without being engaged with the index gear 45. As shown in FIG. 13 (f), the position of the index plate 44 is increased. The slider 63 can be returned to the original position while holding.

  In this way, the switching mechanism 61 can rotate the index plate 44 by a predetermined angle by one action of operation and release of the door handle 66, whereby the index plate 44 is moved between the first position and the second position. The clutch device 41 can be switched between a connected state and a disconnected state by alternately moving the clutch device 41 to the connected state. That is, every time the door handle 66 is operated, the clutch device 41 can be alternately switched between the connected state and the disconnected state. Regardless of the amount of operation of the door handle 66, the index gear 45 is set to reliably rotate by a predetermined angle (45 degrees).

  Next, the operation of the opening / closing device 21 including such a clutch device 41 will be described.

  When the opening side of an opening / closing switch (not shown) provided in the vehicle 11 or the portable terminal is operated with the sliding door 14 closed, the electric motor 34 rotates forward and the sliding door 14 automatically opens, On the other hand, when the closing side of the open / close switch is operated, the electric motor 34 reverses and the slide door 14 automatically closes.

  On the other hand, when the sliding door 14 is manually opened / closed, the door handle 66 provided on the sliding door 14 is operated to switch the clutch device 41 from the connected state to the disconnected state, and the door handle 66 is moved in the opening / closing direction. Thus, the slide door 14 can be opened and closed. At this time, even if the operation of the door handle 66 is released, the clutch device 41 is maintained in the disconnected state, so that the opening / closing operation of the slide door 14 becomes easy. In addition, when the slide door 14 is in the open / closed position, the clutch device 41 can be switched from the disconnected state to the connected state by operating the door handle 66 again, and the slide door 14 can be stopped at any intermediate position. .

  As described above, in this opening / closing device 21, the clutch device 41 can be switched between the connected state and the disconnected state every time the door handle 66 is operated, and the clutch device 41 is not operated until the door handle 66 is operated again. Since the connected state or the disconnected state is maintained, there is no need to continue to operate the door handle 66 when the sliding door 14 is manually opened and closed, and the operability when the sliding door 14 is manually opened and closed is improved. it can. Further, since the clutch device 41 is mechanically held in the connected state when switched to the connected state, the clutch device 41 is unexpectedly switched to the disconnected state even when the power supply to the switching device 21 is cut off. It is never done.

  In the opening / closing device 21, the clutch device 41 can be intermittently operated by operating a door handle 66 provided on the slide door 14. Therefore, if the operator holds the door handle 66, the clutch device 41 can be intermittently operated. Both the opening and closing operation can be performed manually by the slide door 14, and the operability when the slide door 14 is manually opened and closed can be further improved. In particular, the door handle 66 provided outside the slide door 14 is effective in terms of operability.

  Further, in the opening / closing device 21, the electric motor 34 and the clutch device 41 are provided on the lower arm 18 fixed to the slide door 14, so that an operation unit for operating the clutch device 41 to be intermittent is provided on the slide door 14. Even when the door handle 66 is provided, the connection structure between the door handle 66 and the clutch device 41 can be simplified. In addition, since it is possible to eliminate interference between the electric motor 34 and the clutch device 41 and other devices disposed inside the slide door 14, the layout of these devices can be improved. Furthermore, since the electric motor 34 and the clutch device 41 can be attached to the lower arm 18 after the slide door 14 is attached to the vehicle 11, the attachment of the opening / closing device 21 to the vehicle 11 can be improved. It is possible to facilitate the specification division between the vehicle 11 on which the switchgear 21 is mounted and the vehicle on which the switchgear 21 is not mounted.

  FIG. 14 is a layout diagram showing a modification of the vehicle automatic opening / closing device shown in FIG.

  A vehicle automatic opening / closing device 71 (hereinafter referred to as an opening / closing device 71) shown in FIG. 14 uses a driving pulley 72 as a rotating body, which is the drum 27 in the opening / closing device 21 shown in FIG. A pair of reversing pulleys 73 and 74 are provided, and a belt 75 that is a rope is stretched between the driving pulley 72 and each reversing pulley 73 and 74, and the belt 75 is operated by the electric motor 34 fixed to the vehicle body 12 to slide. The door 14 is opened and closed. That is, in this opening / closing device 71, the electric motor 34 as a drive source is fixed to the vehicle body 12, and the drive pulley 72 as a rotating body is provided on the lower arm 18 of the slide door 14.

  In this opening / closing device 71, the clutch device 41 is provided between the drive pulley 72 and the slide door 14, that is, between the electric motor 34 that rotates the drive pulley 72 via the belt 75 and the slide door 14. When the clutch device 41 is switched to the connected state, the drive pulley 72 is fixed to the lower arm 18 and its rotation is restricted, whereby the power of the electric motor 34 is transferred to the slide door 14 via the drive pulley 72. The sliding door 14 is automatically opened and closed by being driven to open and close by the electric motor. On the other hand, when the clutch device 41 is switched to the disconnected state, the drive pulley 72 becomes rotatable, the power transmission between the electric motor 34 and the drive pulley 72 is interrupted, that is, the slide door 14 is disconnected from the electric motor 34. Thus, the sliding door 14 can be easily opened and closed manually.

  In FIG. 14, members corresponding to those described above are denoted by the same reference numerals.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, in the present embodiment, the operation unit is the door handle 66 provided in the slide door 14, but the operation unit is not limited thereto, and for example, the operation unit may be provided in a vehicle interior or a portable terminal. Good.

  In the present embodiment, the open / close body is the slide door 14 that opens and closes in the vehicle front-rear direction. However, the present invention is not limited to this, and may be, for example, a laterally opening door for getting on / off or a back door.

  Further, in the present embodiment, the drive-side disk 42 moves in the axial direction with respect to the driven-side disk 43, and the clutch device 41 is intermittently connected. The driven disk 43 may be moved in the axial direction with respect to 42. In this case, the index plate 44 drives the driven disk 43.

  Furthermore, in the present embodiment, the engagement form of the drive side disk 42 and the driven side disk 43 is a friction engagement type, but is not limited thereto, and may be a meshing type, for example.

  Further, in the present embodiment, the slider 63 is connected to the door handle 66 through the wire 67. However, the present invention is not limited to this, and the slider 63 is moved by an electromagnetic solenoid or the like that operates in conjunction with the operation of the door handle 66. You may make it make it linearly reciprocate.

  Further, in the present embodiment, the drive unit 22 is provided on the lower arm 18 guided by the lower rail 19, but is not limited thereto, and is provided on the center arm 15, the upper arm, or the vehicle body 12. Also good.

  Furthermore, in the present embodiment, both ends of one cable 23 are fixed to the vehicle body 12 and an intermediate portion thereof is stretched over the drum 27. However, the present invention is not limited thereto, and is formed on both end surfaces of the drum. The base end portions of the open side cable and the close side cable are respectively fixed to the engaging grooves, and these cables are wound around the guide groove of the drum a plurality of times in opposite directions, and the front end of the open side cable is connected to the rear rail 19 of the lower rail 19 The front end of the closed cable may be fixed to the vehicle body 12 on the vehicle front side of the lower rail 19.

  Further, in the present embodiment, both ends of the cable 23 are directly fixed to the vehicle body 12, but the present invention is not limited to this, and brackets and the like fixed to both ends of the lower rail 19 and both ends of the lower rail 19 are provided. Accordingly, both ends of the cable 23 may be fixed to the vehicle body 12.

  Furthermore, in the present embodiment, the cable body is not limited to the cable 23, and for example, a belt, a chain, or the like may be used, and the rotating body is not limited to the drum 27 or the drive pulley, for example, a toothed pulley. A sprocket or the like may be used.

1 is a side view showing an outline of a vehicle equipped with an automatic opening / closing device for a vehicle which is an embodiment of the present invention. It is explanatory drawing which shows the attachment structure to the vehicle body of the slide door shown in FIG. It is a partially cutaway perspective view showing an automatic opening and closing device for a vehicle. It is a perspective view which shows the detail of the lower arm shown in FIG. It is a front view which shows the layout of the drive unit shown in FIG. It is sectional drawing which follows the AA line shown in FIG. It is sectional drawing which shows the detail of a clutch apparatus. It is a front view which shows the detail of the index plate shown in FIG. It is a front view which shows the recessed part formed in the upper case. (A)-(c) is explanatory drawing which shows the positional relationship of the protrusion accompanying rotation of an index plate, and a large diameter recessed part or a small diameter recessed part. (A) is sectional drawing which shows the interruption | blocking state of a clutch apparatus, (b) is sectional drawing which shows the connection state of a clutch apparatus. It is a front view which shows the detail of a switching mechanism. (A)-(f) is a front view which shows the process in which an index plate is rotated a predetermined angle by the switching mechanism. It is a layout figure which shows the modification of the automatic opening / closing apparatus for vehicles shown in FIG.

Explanation of symbols

11 Vehicle 12 Car body 13 Boarding gate 14 Sliding door (opening / closing body)
15 Center arm 16 Center rail 17 Upper rail 18 Lower arm (arm member)
18a Upper case 18b Lower case 18c Flange 19 Lower rail (guide rail)
21 Automatic opening / closing device for vehicle 22 Drive unit 23 Cable (string)
24 Roller assembly 24a Base bracket 24b Guide roller 24c Traveling roller 25 Pin member 26 Traveling panel 27 Drum (rotating body)
27a Mounting hole 27b Guide groove 28 Slide bearing 29 Rotating shaft 31a, 31b Guide pulley 32, 33 Tensioner 34 Electric motor (drive source)
34a Output shaft 35 Drive pulley 36 Belt 37 Driven pulley 41 Clutch device 42 Drive side disk (drive side rotating body)
43 Driven disk (driven rotor)
44 Index plate (index member)
44a Mounting hole 45 Index gear 45a Locking surface 45b Relief surface 46 Projection 47 Movable shaft 47a Flange portion 48 Ball 51 Return spring 52 Return spring 53 Large diameter concave portion 54 Small diameter concave portion 61 Switching mechanism 62 Pin portion 63 Slider (operating portion)
64 Finger 65 Pin member 66 Door handle (operating means)
67 Wire 68 Return spring 71 Automatic opening / closing device for vehicle 72 Drive pulley 73, 74 Reverse pulley 75 Belt

Claims (5)

An automatic opening and closing device for a vehicle that automatically opens and closes an opening and closing body provided in a vehicle,
A drive source for opening and closing the opening and closing body;
A clutch device that is provided between the drive source and the opening / closing body, and interrupts power transmission between the drive source and the opening / closing body;
An operating means that is operated by an operator and manually opens and closes the opening and closing body;
An automatic opening and closing device for a vehicle, wherein the clutch device is alternately switched between a connected state and a disconnected state every time the operating means is operated.   2. The automatic opening / closing device for a vehicle according to claim 1, wherein the clutch device and the operating means are provided on the opening / closing body.   The automatic opening and closing device for a vehicle according to claim 1 or 2, wherein the guide rail is fixed to a side portion of the vehicle and guides the opening and closing body so as to be movable in the longitudinal direction of the vehicle. A strip that is fixed to a vehicle; and a rotary body that is spanned by the strip and is rotationally driven by the drive source. The drive source, the operation unit, and the rotary body are connected to the opening / closing body. An automatic opening / closing device for a vehicle, wherein the clutch device is provided between the drive source and the rotating body.   4. The vehicle automatic opening / closing device according to claim 3, wherein the driving source, the clutch device, and the rotating body are provided on an arm member fixed to the opening / closing body and guided by the guide rail. Automatic switchgear.   5. The automatic opening and closing device for a vehicle according to claim 1, wherein the driving side rotating body is rotationally driven by the driving source, and the driving side rotating body is provided so as to be freely engageable and disengageable in the axial direction. And a driven-side rotating body that rotates in conjunction with the opening / closing operation of the opening / closing body, and alternately moves to first and second positions that differ in the axial direction every time a predetermined angle is rotated, and the driving-side rotating body or the driven body An index member that drives the side rotator in the axial direction, and when the operation unit linked to the operation unit is operated, the index member is rotated by a predetermined angle, and the operation of the operation unit is released. An automatic opening and closing device for a vehicle, wherein the clutch device is provided with a switching mechanism for holding a position.

Images