JPWO2015115358A1 - Opening and closing device for vehicle - Google Patents

Abstract

Provided is a vehicular opening / closing device capable of suppressing foreign matter from entering a second accommodation chamber from a first accommodation chamber. The vehicle opening and closing device of the present invention is a vehicle opening and closing device that opens and closes a slide door provided on a vehicle body, and includes a drum 29 wound with a first cable and a second cable connected to the slide door, and a drum 29. An electric motor 37 that generates power to be transmitted, a speed reduction mechanism 47 provided in a power transmission path from the electric motor 37 to the drum 29, a carrier 51 of the speed reduction mechanism 47, and a drum storage chamber 28 and a motor storage chamber Partition part 51 a separating 36. [Selection] Figure 4

Description

The present invention relates to a vehicle opening / closing device that automatically opens and closes an opening / closing body provided in a vehicle.

  Conventionally, wagon cars and one-box vehicles have been provided with sliding doors that open and close in the vehicle front-rear direction on the side of the vehicle body so that passengers can easily get on and off and load and unload luggage. ing. An open / close device that automatically opens and closes such a sliding door with the power of a power source is known.

  As such an opening / closing device, a technique described in Patent Document 1 is known. The opening / closing device described in Patent Document 1 includes a drive unit provided in a vehicle body and two cables. The drive unit includes a drum around which two cables are wound, a first storage chamber that stores the drum, an electric motor as a power source, a second storage chamber that stores the electric motor, and a second storage chamber. A motor case, a base bracket to which the motor case is fixed, and a housing in which a first storage chamber is formed and fixed to the base bracket.

  On the other hand, a first arm and a second arm are attached to the slide door. One end of the first cable is connected to the first arm, and the other end of the first cable is connected to the drum. One end of the second cable is connected to the second arm, and the other end of the second cable is connected to the drum. The winding direction of the first cable around the drum is opposite to the winding direction of the second cable around the drum.

  The housing is provided with a first opening and a second opening, the first opening is provided with a cylindrical first outer case, and the second opening is provided with a cylindrical second outer case. Is provided. The first cable is inserted into the first outer case, and the second cable is inserted into the second outer case. That is, the first cable and the second cable are arranged over the inside of the housing and the outside of the housing. A first shaft hole is provided in the motor case, and a second shaft hole is provided in the base bracket. The output shaft of the electric motor is disposed across the first shaft hole, the second shaft hole, and the inside of the housing. A deceleration mechanism that transmits torque of the output shaft to the drum is provided inside the housing.

  The reduction mechanism is configured by a planetary gear mechanism. The planetary gear mechanism includes a sun gear formed on the outer periphery of the output shaft, a large-diameter pinion gear that meshes with the sun gear, a small-diameter pinion gear that is coaxial with the large-diameter pinion gear and rotates integrally with the large-diameter pinion gear, and a ring gear provided on the drum And. The base bracket is provided with a support shaft, and the large-diameter pinion gear and the small-diameter pinion gear are supported by the support shaft so that they can rotate. The large-diameter pinion gear meshes with the sun gear, and the small-diameter pinion gear meshes with the ring gear.

  When the torque of the output shaft is transmitted to the drum via the speed reduction mechanism, the sun gear acts as an input element, the base bracket acts as a reaction force element, and the small-diameter pinion gear acts as an output element. The rotation speed of the drum is decelerated with respect to the rotation speed, and the torque transmitted from the electric motor to the drum is amplified.

JP 2010-90653 A

  In the switchgear described in Patent Literature 1, when foreign matter existing outside the housing enters the inside of the housing via at least one of the first outer case and the second outer case, the foreign matter enters the first of the base bracket. There was a possibility of entering the second storage chamber through the biaxial hole.

  An object of the present invention is to provide a vehicle opening / closing device that can prevent foreign matter from entering the second storage chamber from the first storage chamber.

  The present invention is a vehicle opening / closing device that opens and closes an opening / closing body provided in a vehicle body, wherein a drum around which a cable connected to the opening / closing body is wound, an electric motor that generates power to be transmitted to the drum, A planetary gear mechanism provided in a power transmission path from the electric motor to the drum, a first space provided in an element of the planetary gear mechanism, in which the drum is arranged, and a second space in which the electric motor is arranged And a partition portion separating the two.

  Elements of the planetary gear mechanism according to the present invention include a sun gear to which power of the electric motor is transmitted, a ring gear arranged coaxially with the sun gear, and the drum so as to be able to transmit power, and the sun gear and the A carrier for supporting a pinion gear meshing with the ring gear, and the partition portion is provided on the carrier.

  In the present invention, a casing that forms the first space, and a gap that is formed between the partition portion and the casing and communicates with the first space and the second space are provided.

  In the present invention, a groove in which the partition portion is disposed is provided in the casing, and the gap is formed between an inner surface of the groove and the partition portion.

  The casing according to the present invention has an inward flange extending in a direction intersecting with the rotation center line of the drum, and the gap is formed between the inward flange and the partition portion. Yes.

  The present invention is provided with a discharge port that communicates with the first space and the outside of the casing.

  In the present invention, the planetary gear mechanism is disposed between the first space and the second space in a direction along the rotation center line of the drum.

  According to the present invention, foreign matter can be prevented from entering the second storage chamber from the first storage chamber.

It is a side view of the vehicle provided with the sliding door. It is a top view which shows typically the opening / closing apparatus which operates the slide door shown in FIG. FIG. 3 is an external view of a drive unit that is a part of the opening / closing device shown in FIG. 2. It is sectional drawing of the drive unit shown in FIG. It is an expanded sectional view of the drive unit shown in FIG. FIG. 3 is an external view of a drive unit that is a part of the opening / closing device shown in FIG. 2. It is an expanded sectional view of the example which changed a part of drive unit shown in FIG. FIG. 6 is an enlarged cross-sectional view in which the structure of the drive unit shown in FIG. 5 is changed. It is the expanded sectional view which changed the structure of the drive unit shown in FIG. FIG. 10 is a plan view of the drive unit of FIG. 9.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. A vehicle 11 shown in FIG. 1 is a one-box type passenger car, and an opening 12 a is provided on a side portion of a vehicle body 12 that is a part of the vehicle 11. The vehicle 11 is provided with a slide door 13 that opens and closes the opening 12a. As shown in FIG. 2, the slide door 13 includes a roller assembly 14, and the roller assembly 14 is attached to a guide rail 15 fixed to a side portion of the vehicle body 12. The guide rail 15 is provided in a substantially horizontal direction, and the roller assembly 14 is movable along the guide rail 15.

  When the roller assembly 14 moves along the guide rail 15, the slide door 13 moves along the side of the vehicle body 12 between a fully closed position indicated by a solid line in FIG. 1 and a fully open position indicated by a two-dot chain line. The vehicle 11 moves in the front-rear direction.

  The vehicle 11 is provided with a vehicle opening / closing device 16 for opening and closing the slide door 13 with the power of the power source. The vehicle opening / closing device 16 is hereinafter referred to as “opening / closing device 16”. The opening / closing device 16 includes a drive unit 17 provided on the vehicle body 12, a first cable 18 and a second cable 19 that transmit power of the drive unit 17 to the slide door 13, and two reversing pulleys 20 provided on the vehicle body 12. , 21. The reversing pulley 20 is disposed in front of the reversing pulley 21 in the front-rear direction of the vehicle 11. The drive unit 17 is disposed between the reverse pulley 20 and the reverse pulley 21 in the front-rear direction of the vehicle 11.

  As shown in FIG. 2, the first cable 18 is routed from the drive unit 17 toward the front of the vehicle 11, and the direction is changed by the reversing pulley 20, and the front side of the vehicle 11 along the guide rail 15. To the rear of the vehicle 11 and one end of the first cable 18 is connected to the roller assembly 14. The second cable 19 is routed from the drive unit 17 toward the rear of the vehicle 11, and the direction is changed by the reversing pulley 21 so that the second cable 19 extends from the rear side of the vehicle 11 to the front of the vehicle 11 along the guide rail 15. The one end of the second cable 19 is connected to the roller assembly 14 while being routed.

  The other end of the first cable 18 and the other end of the second cable 19 are respectively guided to the drive unit 17, and when the first cable 18 is pulled by the power of the drive unit 17, the slide door 13 moves forward of the vehicle 11. Operates towards. On the other hand, when the second cable 19 is pulled by the power of the drive unit 17, the slide door 13 operates toward the rear of the vehicle 11.

  The structure of the drive unit 17 is demonstrated based on FIGS. The drive unit 17 includes a drive case 22, a drive cover 23 attached to one opening of the drive case 22, a motor cover 25 attached to the other opening of the drive case 22 with a partition wall 24 interposed therebetween, It has. A casing 55 is formed by the drive case 22, the drive cover 23, the partition wall 24, and the motor cover 25. A control cover 26 and a control case 27 are attached to the other opening of the drive case 22.

  A drum storage chamber 28 is formed inside the drive case 22, and an annular drum 29 is provided in the drum storage chamber 28. The drum 29 has a support hole 29a formed through the center position in the radial direction of the drum 29, a recess 29b formed at the end of the drum 29 opposite to the drive cover 23, and a plurality of engagement protrusions. 56 are provided. The plurality of engaging protrusions 56 protrude from the end surface of the drum 29 closer to the partition wall 24 in the direction along the rotation center line A1. The plurality of engagement protrusions 56 are arranged at equal intervals on the same circumference centered on the rotation center line A1. For example, three engagement protrusions 56 are provided.

  The recess 29b is coaxial with the support hole 29a, and in the plane perpendicular to the rotation center line A1 shown in FIG. 5, the inner peripheral surface shape of the recess 29b is cylindrical. Openings 30 and 31 are provided on the outer wall of the drive case 22, an outer case 32 is disposed in the opening 30, and an outer case 33 is disposed in the opening 31. The outer cases 32 and 33 each have a cylindrical shape, and the outer cases 32 and 33 each have a guide hole.

  The first cable 18 is passed through the guide hole of the outer case 32, and the second cable 19 is passed through the guide hole of the outer case 33. A winding groove for guiding the first cable 18 and the second cable 19 when the first cable 18 and the second cable 19 are wound is spirally provided on the outer peripheral surface of the drum 29. The end portion of the first cable 18 and the end portion of the second cable 19 are connected to the drum 29, respectively.

  In addition, a tensioner accommodating chamber D1 is provided between the drive case 22 and the drive cover 23. The tensioner storage chamber D1 is connected to the drum storage chamber 28. In the tensioner accommodating chamber D1, a tensioner mechanism 34 that applies tension to the first cable 18 and a tensioner mechanism 35 that applies tension to the second cable 19 are provided. The tensioner mechanism 34 includes a pulley 34a that changes the moving direction of the first cable 18, an elastic member that presses the pulley 34a, and a stopper 34b that supports the elastic member. The tensioner mechanism 35 includes a pulley 35a that changes the moving direction of the second cable 19, an elastic member that pushes the pulley 35a, and a stopper 35b that supports the elastic member.

  The first cable 18 is hung on the pulley 34 a between the outer case 32 and the drum 29, and the second cable 19 is hung on the pulley 35 a between the outer case 33 and the drum 29.

  A motor housing chamber 36 is formed between the partition wall 24 and the motor cover 25. An electric motor 37 is provided in the motor housing chamber 36. The electric motor 37 is a power source that generates power to be transmitted to the drum 29. The electric motor 37 includes a stator 38 that is fixedly provided in the motor housing chamber 36 and a rotor 39 that is rotatably provided in the motor housing chamber 36. The stator 38 is formed by laminating a plurality of steel plates and winding an electric wire around the laminated steel plates. The rotor 39 is annular, and a permanent magnet 40 is attached to the outer peripheral surface of the rotor 39. An output shaft 43 that rotates integrally with the rotor 39 is provided at the center of the rotor 39.

  A shaft hole 41 is provided in the partition wall 24, and an output shaft 43 is rotatably supported by a bearing 42 disposed in the shaft hole 41. Here, in a state where the drive unit 17 is attached to the vehicle body 12, the rotation center line A1 is substantially horizontal, and the motor storage chamber 36 and the drum storage chamber 28 are at different positions in the direction along the rotation center line A1. Has been placed.

  One end of the output shaft 43 in the length direction is disposed so as to protrude from the shaft hole 41 into the motor housing chamber 36, and the output shaft 43 is fixed to the rotor 39 so as to be integrally rotatable inside the motor housing chamber 36. The other end of the output shaft 43 in the length direction is disposed so as to protrude from the shaft hole 41 to the drum housing chamber 28, and a sun gear 48 described later is integrally formed on the other end side of the output shaft 43.

  In addition, a support shaft 44 that protrudes from the inner surface of the drive cover 23 toward the drum housing chamber 28 is provided. The support shaft 44 and the output shaft 43 are arranged coaxially, and the drum 29 is arranged outside the support shaft 44 and the output shaft 43 in the radial direction of the circle centered on the rotation center line A1.

  A bearing 45 is provided between the support shaft 44 and the drum 29 and a bearing 46 is provided between the output shaft 43 and the drum 29 in the radial direction of the circle centered on the rotation center line A1. The bearings 45 and 46 are disposed in the support hole 29a. That is, the drum 29 is supported by the bearings 45 and 46 so as to be rotatable about the rotation center line A1. Further, the drum 29 and the output shaft 43 can be relatively rotated.

  The partition wall 24 is disposed between the motor cover 25 and the drive cover 23 in a direction along the rotation center line A1. The drum 29 is disposed between the partition wall 24 and the drive cover 23 in a direction along the rotation center line A1. Further, a speed reduction mechanism 47 is provided between the partition wall 24 and the drum 29 in a direction along the rotation center line A1. The speed reduction mechanism 47 is disposed in a power transmission path from the output shaft 43 to the drum 29.

  The reduction mechanism 47 is a single pinion type planetary gear mechanism. The reduction mechanism 47 includes a sun gear 48 formed on the outer peripheral surface of the output shaft 43, a ring gear 49 provided coaxially with the sun gear 48, and a carrier 51 that supports the sun gear 48 and the plurality of pinion gears 50 that mesh with the ring gear 49. I have. The ring gear 49 is fixed to the drive case 22. The carrier 51 supports a plurality of pinion gears 50 through a plurality of pinion pins 52 so as to be able to rotate.

  The carrier 51 is formed by annularly forming a metal plate, and the carrier 51 is connected so as to rotate integrally with the drum 29. Further, a bearing 53 is disposed between the outer peripheral surface of the output shaft 43 disposed in the drum accommodating chamber 28 and on the other end side of the portion where the sun gear 48 is formed, and the inner peripheral surface of the carrier 51. The carrier 51 is supported by the bearing 53 so as to be rotatable about the rotation center line A1. The carrier 51 is provided between the drum 29 and the partition wall 24 in a direction along the rotation center line A1.

  The carrier 51 includes a plate portion 51b extending perpendicularly to the rotation center line A1, an inclined portion 51a provided continuously to the outer peripheral end of the plate portion 51b, and an inner peripheral end of the plate portion 51b. And a provided cylinder portion 51c. The plate portion 51b is formed in a flat plate shape, and a plurality of pinion pins 52 are fixed to the plate portion 51b at equal intervals in the circumferential direction around the rotation center line A1. The plurality of pinion pins 52 are arranged at positions different from the plurality of engagement protrusions 56 on the circumference centered on the rotation center line A1. The plurality of pinion pins 52 support the pinion gear 50 so as to be capable of rotating.

  In addition, a plurality of engagement holes 57 are provided in the plate portion 51b. The plurality of engagement holes 57 are arranged at equal intervals on the same circumference around the rotation center line A1. The three engagement protrusions 56 are separately engaged with the three engagement holes 57, whereby the carrier 51 and the drum 29 are connected so as to be able to transmit power. The pinion pins 52 and the engagement holes 57 are alternately arranged along the rotation direction of the carrier 51 and are arranged on the same circumference. However, in FIG. 5, the pinion pin 52 and the engagement hole 57 are shown side by side in the radial direction for convenience. The inclined portion 51a is inclined with respect to the plate portion 51b in a direction away from the pinion gear 50. That is, the carrier 51 is bent in the direction along the rotation center line A1. The cylinder portion 51c is disposed on the outer peripheral side of the rotation center line A1, and is in a plane perpendicular to the rotation center line A1.

  In the state where the drive unit 17 is assembled, the cylinder portion 51c is disposed in the recess 29b. Note that the outer diameter of the carrier 51 is larger than the outer diameter of the drum 29. Moreover, the plate part 51b is a flange provided continuously with the cylinder part 51c.

  On the other hand, the drive case 22 is provided with an annular groove 22a centered on the rotation center line A1. The groove 22a is disposed between the drum 29 and the pinion gear 50 in the direction along the rotation center line A1. That is, the groove 22a is disposed outside the drum storage chamber 28 in the radial direction of a circle centered on the rotation center line A1. The inclined portion 51a of the carrier 51 is disposed in the groove 22a. The inclined portion 51a is not in contact with the drive case 22, and there is a U-shaped gap B1 between the inclined portion 51a and the drive case 22 in a plane parallel to the rotation center line A1.

  As shown in FIG. 6, a discharge port 54 is provided between the outer edge 23 a of the drive cover 23 and the drive case 22. The discharge port 54 is connected to the drum storage chamber 28. When the drive unit 17 is attached to the vehicle body 12, the discharge port 54 is positioned below the openings 30 and 31 and the outer cases 32 and 33. A control board is attached to the control cover 26, and a control unit, an electric circuit, a switch, and the like are provided on the control board. A connector is attached to the control case 27, and the connector is connected to an electric circuit of the control board. The electric circuit is connected to the coil of the stator 38 via a switch. The connector is connected to a power source through a power supply socket and a power cable. In addition, in order to open and close the slide door 13, an operation unit that is operated by an occupant of the vehicle 11 is provided inside the vehicle 11, and an operation signal of the operation unit is input to the control unit.

  Next, the automatic opening / closing operation of the slide door 13 will be described. When an occupant of the vehicle 11 operates the operation unit to open the slide door 13, the switch of the electric circuit is turned on. Then, power from the power source is supplied to the electric motor 37, a rotating magnetic field is formed, and the rotor 39 rotates in the first direction. The output shaft 43 rotates with the rotor 39. When torque is transmitted to the output shaft 43, the ring gear 49 acts as a reaction force element, and torque is output from the carrier 51. Here, since the ring gear 49 does not rotate, the rotational speed of the carrier 51 is reduced with respect to the rotational speed of the output shaft 43. Thus, the speed reduction mechanism 47 amplifies the torque transmitted from the output shaft 43 to the carrier 51.

  When torque is transmitted to the carrier 51 and the drum 29 rotates clockwise in FIG. 6, the second cable 19 is wound around the drum 29 and the first cable 18 is fed out from the drum 29. As a result, the slide door 13 moves toward the rear of the vehicle 11, and the opening 12a is opened.

  On the other hand, when the operation unit is operated to close the slide door 13, the rotor 39 rotates in the second direction. When the rotor 39 rotates in the second direction, the drum 29 rotates counterclockwise in FIG. For this reason, the first cable 18 is wound around the drum 29 and the second cable 19 is fed out from the drum 29. As a result, the slide door 13 moves toward the front of the vehicle 11, and the opening 12a is closed.

  By the way, foreign matters attached to the first cable 18 and the second cable 19 can enter the drum housing chamber 28 from the outside of the casing 55 through the guide holes and the openings 30 and 31 of the outer cases 32 and 33. There is sex. Foreign objects include water, dust, mud and sand. In the opening / closing device 16 of the present embodiment, the inclined portion 51 a of the carrier 51 separates the drum housing chamber 28 and the motor housing chamber 36. There is a U-shaped gap B <b> 1 between the inclined portion 51 a and the drive case 22. The gap B1 connects the drum housing chamber 28 and the space C1 in which the pinion gear 50 and the ring gear 49 are disposed.

  In other words, the gap B1 acts as a labyrinth seal that suppresses foreign matter in the drum storage chamber 28 from entering the space C1. The space C1 is connected to the shaft hole 41. For this reason, it can suppress that the foreign material in the drum storage chamber 28 penetrates into the motor storage chamber 36 via the space C <b> 1 and the shaft hole 41. That is, the drive unit 17 can ensure the waterproofness and dustproofness of the motor housing chamber 36. In addition, it is possible to suppress the grease that lubricates the bearing 42 with water droplets or the rusting of the components that constitute the bearing 42 with water droplets. Therefore, the power loss of the output shaft 43 can be suppressed.

  Further, since the carrier 51 of the speed reduction mechanism 47 serves as a seal member, it is not necessary to provide a seal member exclusively. Therefore, it can suppress that the drive unit 17 enlarges in the direction along rotation centerline A1.

  The carrier 51 is formed by bending a metal plate and has a plate portion 51b and an inclined portion 51a. Therefore, the bending rigidity of the carrier 51 is improved in the direction along the rotation center line A1. For this reason, the drive unit 17 can suppress the vibration of the carrier 51 and the pinion gear 50 in the direction along the rotation center line A1, and the vibration noise of the speed reduction mechanism 47 can be reduced.

  When the foreign matter moves downward under its own weight in the drum accommodating chamber 28, the foreign matter passes through the tensioner accommodating chamber D 1 and the discharge port 54 and is discharged to the outside of the casing 55. Therefore, it is possible to suppress foreign matters from staying inside the casing 55.

  On the other hand, in the process of assembling the drive unit 17, the work of winding the first cable 18 and the second cable 19 around the drum 29 is performed. In this case, since the carrier 51 is not connected to the drum 29, that is, the carrier 51 and the drum 29 are separated, the first cable 18 and the second cable 19 are wound around the drum 29. The rotation of the drum 29 is not hindered. Therefore, it is possible to suppress the workability of the work of winding the first cable 18 and the second cable 19 around the drum 29 from being lowered. And after winding the 1st cable 18 and the 2nd cable 19 around the drum 29, if the cylinder part 51c is inserted in the recessed part 29b, the carrier 51 and the drum 29 will be connected so that integral rotation is possible.

  Next, an example in which a part of the drive unit 17 shown in FIGS. 3 to 6 is changed will be described with reference to FIG. In the configuration of FIG. 7, the same configurations as those of FIGS. 3 to 6 are denoted by the same reference numerals as those of FIGS. The carrier 51 shown in FIG. 7 does not include the inclined portion 51a of FIG. 5, and the drive case 22 does not include the groove 22a of FIG. In the drive case 22 shown in FIG. 7, an annular protrusion 22b is provided on the inner peripheral surface forming the drum housing chamber 28 concentrically with the rotation center line A1. The protrusion 22b protrudes from the inner peripheral surface of the drive case 22 in a direction perpendicular to the rotation center line A1. A part of the protruding portion 22b is disposed between the drum 29 and the plate portion 51b in a direction along the rotation center line A1.

  A gap B2 is formed between the protrusion 22b and the inner peripheral surface of the drive case 22 and the plate portion 51b, and a gap B3 is formed between the protrusion 22b and the end surface of the drum 29. . In the plane in the direction along the rotation center line A1, the gap B2 is bent in an L shape. The gap B2 and the gap B3 are connected to the drum storage chamber 28 and the space C1. In the example shown in FIG. 7, the foreign matter attached to the cable wound around the drum 29 acts as a labyrinth seal in the gap B2 and the gap B3, so that the foreign matter in the drum storage chamber 28 does not easily enter the space C1.

  Therefore, the example shown in FIG. 7 can obtain the same effects as those of the drive unit 17 shown in FIGS. Further, since the projecting portion 22b is disposed between the drum 29 and the plate portion 51b, a force that causes the drum 29 to tilt with respect to the rotation center line A1 is generated by the force of the drum 29 winding the cable when the motor is driven. In this case, either the drum 29 or the plate portion 51b is close to the protruding portion 22b. For this reason, there is an effect that foreign matter can be prevented from entering the space C1 when the electric motor 37 is driven.

  FIG. 8 shows another example of the speed reduction mechanism 47 shown in FIG. A ring gear 49 of the speed reduction mechanism 47 shown in FIG. 8 is attached to the partition wall 24. An annular rib 58 is provided on the partition wall 24 concentrically with the rotation center line A1. The rib 58 protrudes from the surface of the partition wall 24 in a direction along the rotation center line A1. The ring gear 49 is fixed so as not to rotate with respect to the rib 58. The ring gear 49 is positioned in the radial direction by the rib 58. The drive case 22 is provided with a protrusion 59, and the ring gear 49 is sandwiched between the protrusion 59 and the partition wall 24 and positioned in the direction along the rotation center line A1.

  The ring gear 49 of the speed reduction mechanism 47 shown in FIG. 8 is positioned in the radial direction by the partition wall 24. The output shaft 43 is positioned in the radial direction with respect to the partition wall 24 by the bearing 42. That is, the ring gear 49 and the output shaft 43 are positioned in the radial direction by the common partition wall 24. Therefore, the positioning accuracy between the sun gear 48 provided on the output shaft 43 and the ring gear 49 is improved.

  9 and 10 show another example of the speed reduction mechanism 47 shown in FIG. The positioning structure of the ring gear 49 shown in FIG. 10 is the same as the positioning structure of the ring gear 49 shown in FIG. The carrier 51 is hexagonal in a plan view perpendicular to the rotation center line A1. Furthermore, the outer diameter corresponding to each vertex of the hexagon that is the outer peripheral shape of the carrier 51, that is, the diameter of the circumscribed circle is larger than the inner diameter of the protruding portion 22B. Further, the pinion pins 52 and the engagement holes 57 are alternately arranged in the rotation direction of the carrier 51. The three pinion pins 52 and the three engagement holes 57 are respectively arranged at positions corresponding to hexagonal corners in the rotation direction of the carrier 51. The other structures in the structure shown in FIGS. 9 and 10 are the same as those shown in FIGS. In the speed reduction mechanism 47 and the electric motor 37 shown in FIG. 9 and FIG. 10, the same effects as those in FIG. 7 and FIG.

  Furthermore, when the electric motor 37 and the speed reduction mechanism 47 shown in FIGS. 4 to 10 are used in the drive unit 17, the slide door 13 and the output shaft 43 of the electric motor 37 are connected to the speed reduction mechanism 47, the drum 29, and the first cable 18. The second cable 19 is connected. Therefore, when the slide door 13 is manually operated, the power of the drum 29 is transmitted to the output shaft 43 via the speed reduction mechanism 47. Here, in the speed reduction mechanism 47, the rotation speed of the sun gear 48 is increased with respect to the rotation speed of the carrier 51 and rotates. Thus, when the slide door 13 is moved by manual operation until it reaches the fully open position or the fully closed position, an inertial force acts on the output shaft 43 around the rotation center line A1.

  When the sliding door 13 is manually operated and the power of the drum 29 is input to the speed reduction mechanism 47, the output shaft 43 on which the sun gear 48 serving as an output element is formed has a small outer diameter and a small inertial mass. That is, the ring gear 49 arranged on the outermost side among the rotating elements of the speed reduction mechanism 47 is a reaction force element and is fixed by the drive case 22 or the partition wall 24 so as not to rotate. That is, the inertial force generated when the sun gear 48 is rotated is smaller than the inertial force of the structure that rotates the ring gear 49. For this reason, an increase in the inertial force that works around the output shaft 43 can be suppressed. Therefore, it is not necessary to provide a strong support structure for suppressing the output shaft 43 from vibrating in the radial direction.

  The correspondence between the configuration of the present embodiment and the configuration of the present invention will be described. The drum storage chamber 28 corresponds to the first space of the present invention, and the motor storage chamber 36 corresponds to the second space of the present invention. The carrier 51 corresponds to an element of the present invention, the inclined portion 51a and the plate portion 51b correspond to a partition portion of the present invention, and the protruding portion 22b corresponds to an inward flange of the present invention.

  It goes without saying that the drive unit of the present invention is not limited to the above-described embodiment, and can be variously modified without departing from the gist thereof. For example, the speed reduction mechanism includes a single pinion type planetary gear mechanism and a double pinion type planetary gear mechanism. The double pinion type planetary gear mechanism rotates a sun gear, a ring gear coaxial with the sun gear, a first pinion gear meshing with the sun gear, a second pinion gear meshing with the first pinion gear and the ring gear, a first pinion gear and a second pinion gear, And a carrier for revolving support.

  The carrier is fixed to the drive case, and the ring gear is connected to the drum via the rotating member. The rotating member corresponds to an element of the present invention. The ring gear is rotatably provided in the drum housing chamber. The sun gear is formed on the output shaft. In the double pinion type planetary gear mechanism, the sun gear acts as an input element, the carrier acts as a reaction force element, and the ring gear acts as an output element. Furthermore, a partition part is provided in the rotating member, and a gap for forming a labyrinth seal is provided between the partition part and the drive case.

  Furthermore, the drive unit of the present invention can be provided on a slide door. In this case, the vehicle body is provided with a first support portion that supports the end portion of the first cable fed out from the drive unit and a second support portion that supports the end portion of the second cable.

  Furthermore, the rotation center line of the drum may be arranged along a direction intersecting the horizontal direction. Furthermore, the opening / closing device of the present invention can also be used as a mechanism for operating the opening / closing body provided at the rear of the vehicle in the horizontal direction. Furthermore, the opening / closing device of the present invention can also be used as a mechanism for operating the opening / closing body provided on the roof of the vehicle in the horizontal direction.

  The present invention can be used as a vehicle opening / closing device that automatically opens and closes an opening / closing body provided in a vehicle.

[0003]
Means for Solving the Problems [0011]
The present invention is a vehicle opening / closing device that opens and closes an opening / closing body provided in a vehicle body, wherein a drum around which a cable connected to the opening / closing body is wound, an electric motor that generates power to be transmitted to the drum, A planetary gear mechanism provided in a power transmission path from the electric motor to the drum, a first space in which the drum is disposed, and a second space in which the electric motor is disposed in the direction of the rotation center line of the drum A casing formed at a different position; a partition provided in an element of the planetary gear mechanism; and a partition that separates the first space and the second space in a rotation center line direction of the drum; and the casing. And a groove in which the partition portion is disposed, and a gap that is formed between the partition portion and the casing and communicates with the first space and the second space, and the gap is Grooved It is formed between the surface and the partition portion.
[0012]
Elements of the planetary gear mechanism according to the present invention include a sun gear to which power of the electric motor is transmitted, a ring gear arranged coaxially with the sun gear, and the drum so as to be able to transmit power, and the sun gear and the A carrier for supporting a pinion gear meshing with the ring gear, and the partition portion is provided on the carrier.
[0013]
[0014]
[0015]
The casing according to the present invention has an inward flange extending in a direction intersecting with the rotation center line of the drum, and the gap is formed between the inward flange and the partition portion. Yes.
[0016]
The present invention is provided with a discharge port that communicates with the first space and the outside of the casing.
[0017]
In the present invention, the planetary gear mechanism is disposed between the first space and the second space in a direction along the rotation center line of the drum.
Effects of the Invention [0018]
According to the present invention, foreign matter can be prevented from entering the second storage chamber from the first storage chamber.
Brief Description of Drawings

[0012]
[0052]
On the other hand, in the process of assembling the drive unit 17, the work of winding the first cable 18 and the second cable 19 around the drum 29 is performed. In this case, since the carrier 51 is not connected to the drum 29, that is, the carrier 51 and the drum 29 are separated, the first cable 18 and the second cable 19 are wound around the drum 29. The rotation of the drum 29 is not hindered. Therefore, it is possible to suppress the workability of the work of winding the first cable 18 and the second cable 19 around the drum 29 from being lowered. And after winding the 1st cable 18 and the 2nd cable 19 around the drum 29, if the cylinder part 51c is inserted in the recessed part 29b, the carrier 51 and the drum 29 will be connected so that integral rotation is possible.
[0053]
Next, an example in which a part of the drive unit 17 shown in FIGS. 3 to 6 is changed will be described with reference to FIG. In the configuration of FIG. 7, the same configurations as those of FIGS. 3 to 6 are denoted by the same reference numerals as those of FIGS. The carrier 51 shown in FIG. 7 does not include the inclined portion 51a of FIG. 5, and the drive case 22 does not include the groove 22a of FIG. In the drive case 22 shown in FIG. 7, an annular protrusion 22b is provided on the inner peripheral surface forming the drum housing chamber 28 concentrically with the rotation center line A1. The protrusion 22b protrudes from the inner peripheral surface of the drive case 22 in a direction perpendicular to the rotation center line A1. A part of the protruding portion 22b is disposed between the drum 29 and the plate portion 51b in a direction along the rotation center line A1.
[0054]
A gap B2 is formed between the protrusion 22b and the inner peripheral surface of the drive case 22 and the plate portion 51b, and a gap B3 is formed between the protrusion 22b and the end surface of the drum 29. . In the plane in the direction along the rotation center line A1, the gap B2 is bent in an L shape. The gap B2 and the gap B3 are connected to the drum storage chamber 28 and the space C1. An annular groove 60 is formed by the protruding portion 22b and the inner peripheral surface of the drive case 22, and the outer peripheral end of the plate portion 51b is disposed in the groove 60 to form an L-shaped gap B2. In the example shown in FIG. 7, the foreign matter attached to the cable wound around the drum 29 acts as a labyrinth seal in the gap B2 and the gap B3, so that the foreign matter in the drum storage chamber 28 does not easily enter the space C1.
[0055]
Therefore, the example shown in FIG. 7 has the same effect as that of the drive unit 17 shown in FIGS.

The present invention is a vehicle opening / closing device that opens and closes an opening / closing body provided in a vehicle body, wherein a drum around which a cable connected to the opening / closing body is wound, an electric motor that generates power to be transmitted to the drum, A planetary gear mechanism provided in a power transmission path from the electric motor to the drum, a first space provided in an element of the planetary gear mechanism, in which the drum is arranged, and a second space in which the electric motor is arranged And a partition portion separating the two.

In the present invention, a casing that forms the first space, and a gap that is formed between the partition portion and the casing and communicates with the first space and the second space are provided.

In the present invention, a groove in which the partition portion is disposed is provided in the casing, and the gap is formed between an inner surface of the groove and the partition portion.

A gap B2 is formed between the protrusion 22b and the inner peripheral surface of the drive case 22 and the plate portion 51b, and a gap B3 is formed between the protrusion 22b and the end surface of the drum 29. . In the plane in the direction along the rotation center line A1, the gap B2 is bent in an L shape. The gap B2 and the gap B3 are connected to the drum storage chamber 28 and the space C1 . In the example shown in FIG. 7, the foreign matter attached to the cable wound around the drum 29 acts as a labyrinth seal in the gap B2 and the gap B3, so that the foreign matter in the drum storage chamber 28 does not easily enter the space C1.

Claims (7)

An opening and closing device for a vehicle for opening and closing an opening and closing body provided on a vehicle body,
A drum wound with a cable connected to the opening and closing body;
An electric motor that generates power to be transmitted to the drum;
A planetary gear mechanism provided in a power transmission path from the electric motor to the drum;
A partition that is provided in an element of the planetary gear mechanism and separates a first space in which the drum is disposed and a second space in which the electric motor is disposed;
An opening / closing device for a vehicle. The vehicle opening / closing device according to claim 1,
The elements of the planetary gear mechanism are:
A sun gear to which the power of the electric motor is transmitted;
A ring gear arranged coaxially with the sun gear;
A carrier connected to the drum so as to be capable of transmitting power and supporting a pinion gear meshing with the sun gear and the ring gear;
Including
The said partition part is a vehicle opening / closing apparatus provided in the said carrier. The vehicle opening / closing device according to claim 2,
A casing forming the first space;
A gap formed between the partition portion and the casing and communicating with the first space and the second space;
An opening / closing device for a vehicle provided with The vehicle opening / closing device according to claim 3,
A groove in which the partition portion is disposed is provided in the casing;
The opening / closing device for a vehicle, wherein the gap is formed between an inner surface of the groove and the partition portion. The vehicle opening / closing device according to claim 3,
The casing has an inward flange that extends in a direction intersecting the rotation center line of the drum,
The opening / closing device for a vehicle, wherein the gap is formed between the inward flange and the partition portion. The vehicle opening / closing device according to claim 3,
An opening / closing device for a vehicle, wherein a discharge port communicating with the first space and the outside of the casing is provided. The vehicle opening / closing device according to claim 1,
The planetary gear mechanism is a vehicle opening / closing device disposed between the first space and the second space in a direction along a rotation center line of the drum.

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