JP2015140525A - Opening/closing device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening/closing device for a vehicle capable of reducing slide resistance between a cable and an outer case, and capable of suppressing increase in the number of components.SOLUTION: An opening/closing device for a vehicle for opening/closing an opening/closing body of the vehicle includes: a drum 32 around which a first cable 18 and a second cable 19 are wound; a first outer case 36 for supporting the first cable 18; a second outer case 37 for supporting the second cable 19; a tension roller 45 in which the first cable 18 is hooked; and a tension roller 53 in which the second cable 19 is hooked. The first cable 18 and the second cable 19 cross with each other at crossing points E1, E2, the first cable 18 is arranged along a first straight line across the tension roller 45 from the first outer case 36, and the second cable 19 is arranged along a second straight line across the tension roller 53 from the second outer case 37.

Description

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

  2. Description of the Related Art Conventionally, a vehicular opening / closing device is known in which an opening / closing body is provided on a vehicle body side portion of a vehicle and the opening / closing body is opened / closed by power of a power source.

  A technique described in Patent Document 1 is known as such a vehicle opening / closing device. The opening / closing device described in Patent Document 1 includes a drive unit provided on a vehicle body, two cables connecting the drive unit and the opening / closing body, and a reversing pulley provided on the vehicle body for reversing the two cables. It is equipped with. The drive unit includes a drum around which two cables are wound, an electric motor as a power source for rotating the drum, and a casing to which the drum and the electric motor are attached.

  Further, two support members are attached to the casing, and the two support members are each provided with a guide hole. And the location arrange | positioned between a drum and a reversal pulley among the two cables is each passed through the guide hole of the support member. The casing is provided with two tensioner mechanisms, and portions of the two cables arranged between the drum and the outer case are respectively hung on the tension rollers of the two tensioner mechanisms. ing. Further, two intermediate rollers are provided in the casing. Of the two cables, a portion disposed between the tension roller and the outer case is hung on the intermediate roller.

  When the drum rotates in the forward direction with the power of the electric motor, the first cable is wound around the drum and the opening / closing body moves in the first direction. On the other hand, when the drum rotates in the reverse direction by the power of the electric motor, the second cable is wound around the drum and the opening / closing body moves in the second direction. In this way, the opening / closing body is opened / closed.

  In the vehicular opening / closing device described in Patent Document 1, the arrangement position of the cable passed through the guide hole of the support member and the arrangement position of the cable between the support member and the intermediate roller are on the same straight line. For this reason, when the cable operates, sliding resistance between the cable and the inner peripheral surface of the guide hole of the outer case is reduced.

JP 2002-227944 A

  However, the opening / closing device for a vehicle described in Patent Document 1 has a problem that the number of parts increases because an intermediate pulley is provided in order to reduce the sliding resistance between the cable and the support member.

  An object of the present invention is to provide a vehicle opening / closing device that can reduce sliding resistance between a cable and a support member and can suppress an increase in the number of components.

  The present invention is a vehicle opening and closing device that opens and closes an opening and closing body provided in a vehicle body, the first cable and the second cable connected to the opening and closing body are wound, and a drum that rotates around an axis, A first support member that is formed in a hollow cylindrical shape and slidably supports the first cable, a second support member that is formed in a hollow cylindrical shape and slidably supports the second cable, and the drum The first cable is hung between the first support member and the first cable for applying tension to the first cable, and the second cable is interposed between the drum and the second support member. A second roller that is hung and applies tension to the second cable, and a portion of the first cable that is disposed between the first support member and the first roller; Of the two cables, the second support member and the A portion disposed between the two rollers intersects with the first plane intersecting the axis, and a portion disposed between the first roller and the drum of the first cable; A portion of the second cable disposed between the second roller and the drum intersects in a plan view of the first plane, and the first roller and the first of the first cable are crossed. A portion arranged between the first support member and a portion supported by the first support member are arranged along a first straight line, and the second roller and the second of the second cables are arranged. The part arrange | positioned between support members and the part supported by the said 2nd support member are arrange | positioned along the 2nd straight line.

  The present invention provides a first guide mechanism for supporting the first roller movably along the third straight line on the first plane, and moving the second roller along the third straight line on the first plane. A reaction force applied to the first roller by the tension of the first cable is generated along the third straight line, and is applied to the second roller by the tension of the second cable. The applied reaction force is generated along the third straight line.

  The present invention provides a first guide mechanism for supporting the first roller movably along the third straight line on the first plane, and moving the second roller along the third straight line on the first plane. A second guide mechanism for supporting the first cable, and the first cable is disposed along a fourth straight line between the first guide mechanism and the drum in the first plane, and the second cable is The first plane is disposed along the fifth straight line between the second guide mechanism and the drum, the acute angle formed by the first straight line and the third straight line, the fourth straight line and the fourth straight line The acute angle formed by the third straight line coincides with the acute angle formed by the second straight line and the third straight line, and the acute angle formed by the fifth straight line and the third straight line. Match.

  The present invention provides a first elastic member that applies a force in a direction along the third straight line to the first roller to apply tension to the first cable, and a direction in the direction along the third straight line to the second roller. A second elastic member that applies a force to apply tension to the second cable, and the first elastic member and the second elastic member are arranged in a direction along the third straight line with the first roller and the second cable. It arrange | positions between 2nd rollers.

  In the present invention, a plurality of the first elastic members are provided, and a plurality of the second elastic members are provided.

  In the present invention, the first support member and the second support member are arranged at symmetrical positions with a second plane including the axis line interposed therebetween, and the first roller and the second roller are arranged in the second plane. They are arranged at symmetrical positions with a gap therebetween.

  According to the present invention, the sliding resistance between the cable and the support member can be reduced, and the increase in the number of parts can be suppressed.

1 is a side view of a vehicle provided with a vehicle opening / closing device of the present invention. It is a top view which shows typically the opening and closing apparatus for vehicles of this invention. FIG. 3 is a front view of a drive unit that is a part of the vehicle opening / closing device shown in FIG. 2. FIG. 4 is a side view of the drive unit shown in FIG. 3. FIG. 4 is a bottom sectional view of the drive unit shown in FIG. 3. FIG. 4 is an exploded perspective view of the drive unit shown in FIG. 3. In the drive unit used for the opening and closing device for vehicles of the present invention, it is a mimetic diagram showing the relation of the axis of a drum, the 1st plane, and the 2nd plane. It is a schematic diagram showing the position of the straight line in the 1st plane, an intersection, and an axis line in the drive unit used for the opening and closing device for vehicles of the present invention. It is a schematic diagram which shows the other example of the drive unit used for the switchgear for vehicles of this invention. FIG. 10 is an exploded view showing a first tensioner mechanism of the drive unit shown in FIG. 9. It is sectional drawing which shows the 1st tensioner mechanism of the drive unit shown in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 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. The slide door 13 includes a roller assembly 14. As shown in FIG. 2, a guide rail 15 is attached to the side of the vehicle body 12, and the roller assembly 14 is supported by the guide rail 15 so as to be movable.

  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 automatically opening and closing the slide door 13. 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 reverse pulley 20 is disposed near the front end of the guide rail 15 in the front-rear direction of the vehicle 11. The reversing pulley 21 is disposed near the rear end of the guide rail 15. 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, that is, at an intermediate position of the guide rail 15.

  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 one end of the first cable 18 is connected to the roller assembly 14. It is connected to the. 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, and one end of the second cable 19 is connected to the roller assembly 14.

  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 will be described with reference to FIGS. The drive unit 17 includes a drive case 22, a drive cover 23 attached to the side of the drive case 22, and a motor cover 24 attached to the side of the drive case 22. In FIG. 3, the drive cover 23 is omitted.

  The drive case 22 has a box portion 25 and a ring portion 26, and the drive case 22 is integrally formed of resin. The drive case 22 is a casing having a role of housing a part and a role of supporting the part. The drive case 22 is fixed to the vehicle body 12 using a fixing element. The fixing element includes a screw, a bolt and the like. The motor cover 24 is fixed to the ring portion 26. The drive cover 23 closes the opening portions of the box portion 25 and the ring portion 26. In a state where the drive unit 17 is attached to the vehicle 11, the box portion 25 is disposed above the ring portion 26.

  An electric motor 27 is provided in the motor cover 24. The electric motor 27 includes a stator 28 and a rotor 29, and an output shaft 30 that rotates integrally with the rotor 29 is provided. A bearing that rotatably supports the rotor 29 and the output shaft 30 is provided in the motor cover 24. Assuming that the rotation center of the output shaft 30 is the axis A <b> 1, the axis A <b> 1 of the output shaft 30 is disposed along the width direction of the vehicle 11 with the drive unit 17 attached to the vehicle body 12. That is, the axis A1 is arranged along a substantially horizontal direction.

  FIG. 7 shows a relationship between a first plane G1 that is a plane perpendicular to the axis A1 and a second plane G2 that is a plane perpendicular to the first plane G1. 7 and 8, the first plane G1 and the second plane G2 are both shown as squares for convenience.

  A drum storage chamber 31 is provided in the ring portion 26, and a drum 32 is provided in the drum storage chamber 31. A reduction mechanism 33 is provided in the drum storage chamber 31. The speed reduction mechanism 33 is disposed in a path that transmits the torque of the output shaft 30 to the drum 32, and makes the rotational speed of the drum 32 lower than the rotational speed of the output shaft 30. The speed reduction mechanism 33 is configured by, for example, a planetary gear mechanism. A speed reduction mechanism 33 is disposed between the drum 32 and the electric motor 27 in the direction along the axis A1.

  The drum 32 is rotatable around the axis A <b> 1, and a spiral winding groove is formed on the outer peripheral surface of the drum 32. The first cable 18 and the second cable 19 are wound around the drum 32. The winding direction of the first cable 18 around the drum 32 is opposite to the winding direction of the second cable 19 around the drum 32.

  On the other hand, the box portion 25 includes a plate 34 and an outer wall 35 provided on the outer peripheral edge of the plate 34. Further, a first outer case 36 and a second outer case 37 are attached to the outer wall 35. The outer wall 35 is provided with recesses 35a and 35b, the first outer case 36 is inserted into the recess 35a, and the second outer case 37 is inserted into the recess 35b. The first outer case 36 and the second outer case 37 are fixed between the drive cover 23 and the outer wall 35 with the drive cover 23 fixed to the drive case 22. The 1st outer case 36 and the 2nd outer case 37 are arrange | positioned in the symmetrical position across the 2nd plane G2 containing axis line A1.

  The first outer case 36 has a guide hole 36a, and the second outer case 37 has a guide hole 37a. Both the first outer case 36 and the second outer case 37 are formed in a hollow cylindrical shape from resin. The first cable 18 is inserted into the guide hole 36a, and the first outer case 36 supports the first cable 18 so as to be movable in the length direction. The first cable 18 is slidable with respect to the first outer case 36. That is, the first cable 18 is movable while in contact with the first outer case 36.

  The second cable 19 is passed through the guide hole 37a, and the second outer case 37 supports the second cable 19 so as to be movable in the length direction. The second cable 19 is slidable with respect to the second outer case 37. That is, the second cable 19 is movable in contact with the second outer case 37.

  A first tensioner mechanism 38 and a second tensioner mechanism 39 are provided in the box portion 25. The first tensioner mechanism 38 applies tension to the first cable 18, and the second tensioner mechanism 39 applies tension to the second cable 19. A partition wall 40 is provided in the box portion 25, and the partition wall 40 partitions the inside of the box portion 25 into a first storage chamber B1 and a second storage chamber B2. The partition wall 40 is provided along the second plane G2. In the front-rear direction of the vehicle 11, the first storage chamber B1 is disposed behind the second storage chamber B2. The first tensioner mechanism 38 is disposed in the first storage chamber B1, and the second tensioner mechanism 39 is disposed in the second storage chamber B2.

  Since the first tensioner mechanism 38 and the second tensioner mechanism 39 have a symmetrical shape and structure, the first tensioner mechanism 38 will be mainly described for convenience. Two rails 41 are provided on the inner surface of the plate 34 along the front-rear direction of the vehicle 11. On the other hand, a guide groove 42 is provided on the inner surface of the drive cover 23. The guide groove 42 is provided along the front-rear direction of the vehicle 11. Therefore, in a state where the drive cover 23 is assembled to the drive case 22, the two rails 41 and the guide groove 42 are extended in a substantially horizontal direction in the same direction. The first tensioner mechanism 38 has a roller guide 43 that can move along the guide groove 42 and the rail 41. The roller guide 43 is disposed between the second outer case 37 and the drum 32 in the height direction of the vehicle 11.

  A support shaft 44 is attached to the roller guide 43, and the support shaft 44 rotatably supports the tension roller 45. The rotation center line C1 of the support shaft 44 is substantially horizontal and is disposed in parallel with the axis A1. The tension roller 45 is provided in the moving path of the first cable 18 between the first outer case 36 and the drum 32. The first cable 18 is hung on the tension roller 45, and a part of the first cable 18 is curved in a substantially U shape.

  Further, a stopper 46 is attached to the partition wall 40. The stopper 46 has a pillar 47, and two pins 48 projecting from the pillar 47 toward the first storage chamber B1 are provided. The two pins 48 are arranged side by side in the height direction of the vehicle 11. A push head 49 is provided between the column 47 and the roller guide 43. The push head 49 is movable in the front-rear direction of the vehicle 11 along the two pins 48.

  A compression coil spring 50 is attached to each of the two pins 48. The two compression coil springs 50 are made of metal, and the repulsive force of the two compression coil springs 50 is transmitted to the roller guide 43 via the push head 49. That is, the tension roller 45 is pushed away from the column 47 by the repulsive force of the compression coil spring 50, and tension is applied to the first cable 18.

  On the other hand, the second tensioner mechanism 39 includes a roller guide 51 that can move along the guide groove 42 and the rail 41. The roller guide 51 is disposed between the first outer case 36 and the drum 32 in the height direction of the vehicle 11. The roller guide 51 is provided on the moving path of the second cable 19 between the first outer case 36 and the drum 32.

  A support shaft 52 is attached to the roller guide 51, and the support shaft 52 rotatably supports the tension roller 53. The rotation center line C2 of the support shaft 52 is substantially horizontal and is disposed in parallel with the axis A1. A third straight line D1 shown in FIG. 3 is a straight line connecting the rotation center lines C1 and C2, and when the roller guide 43 and the roller guide 51 move in the substantially horizontal direction along the guide groove 42 and the rail 41, the rotation center Both the lines C1 and C2 move on the third straight line D1. A portion of the second cable 19 that is routed between the first outer case 36 and the drum 32 is hung on the tension roller 53 and is curved in a substantially U shape.

  Furthermore, two pins 54 that protrude from the pillar 47 toward the second storage chamber B2 are provided. The two pins 54 are arranged side by side in the height direction of the vehicle 11. A push head 55 is provided between the column 47 and the roller guide 51. The push head 55 supported by the stopper 46 can move in the front-rear direction of the vehicle 11 along the two pins 54. Thus, the stopper 46 supports both the push heads 49 and 55.

  A compression coil spring 56 is attached to each of the two pins 54. The two compression coil springs 56 are made of metal, and the repulsive force of the two compression coil springs 56 is transmitted to the roller guide 51 via the push head 55. That is, the tension roller 53 is pushed away from the column 47 by the repulsive force of the compression coil spring 56, and tension is applied to the second cable 19. The tension roller 45 and the tension roller 53 are provided at symmetrical positions across the second plane G2. The reaction force of the compression coil spring 50 and the reaction force of the compression coil spring 56 are generated in opposite directions on the third straight line D1.

  When an occupant of the vehicle 11 operates the operation unit to open the slide door 13, electric power is supplied to the electric motor 27, and the output shaft 30 rotates in one direction. The torque of the output shaft 30 is transmitted to the drum 32 via the speed reduction mechanism 33. Then, the drum 32 rotates clockwise in FIG. 3, the second cable 19 is wound around the drum 32, and the first cable 18 is fed out from the drum 32. 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 output shaft 30 rotates in the opposite direction. Then, the drum 32 rotates counterclockwise in FIG. 3, the first cable 18 is wound around the drum 32, and the second cable 19 is fed out from the drum 32. As a result, the slide door 13 moves toward the front of the vehicle 11, and the opening 12a is closed.

  When the sliding door 13 is opened and closed, the first cable 18 is U-shaped in a state where it is hung on the tension roller 45 between the portion away from the drum 32 and the first outer case 36 as shown in FIG. It moves with a trajectory. On the other hand, when the slide door 13 is opened and closed, the second cable 19 has a U-shaped locus in a state where the second cable 19 is hung on the tension roller 53 between the portion away from the drum 32 and the second outer case 37. Moving.

  The first cable 18 is arranged linearly from the tension roller 45 to the first outer case 36. That is, the first plane in which the portion passing through the guide hole 36a in the first cable 18 and the portion disposed between the tension roller 45 and the first outer case 36 in the first cable 18 intersect the axis A1. G1 is arranged along the first straight line H1.

  The direction of the combined force F2 and the direction in which the roller guide 51 moves are arranged on the same third straight line D1. Therefore, even if the first cable 18 moves, the sliding resistance between the first cable 18 and the first outer case 36 can be reduced. That is, it is possible to suppress bending of the routing route of the first cable 18, improve the durability of the first cable 18, and extend the life.

  Further, the second cable 19 moves in a substantially linear locus between the tension roller 53 and the guide hole 37a of the second outer case 37, and the guide hole 37a is on an extension line of the movement locus. . That is, a portion of the second cable 19 passing through the guide hole 37a and a portion of the second cable 19 disposed between the tension roller 53 and the second outer case 37 are the second straight line on the first plane G1. Arranged along H2. Therefore, even if the second cable 19 moves, the sliding resistance between the second cable 19 and the second outer case 37 can be reduced. That is, it is possible to suppress the bending of the routing route of the second cable 19, improve the durability of the second cable 19, and extend the life.

  On the other hand, as shown in FIG. 3, the drive unit 17 has a partition wall 40 disposed above the drum 32, and the first outer case 36 and the tension roller 53 are forward of the partition wall 40 in the front-rear direction of the vehicle 11. Is arranged. Further, the second outer case 37 and the tension roller 45 are disposed behind the partition wall 40 in the front-rear direction of the vehicle 11. The first cable 18 fed out from the drum is routed to the first outer case 36 on the vehicle front side via the tension roller 45 on the rear side of the vehicle 11 with the partition wall 40 as a reference. The second cable 19 is routed to the second outer case 37 disposed on the rear side of the vehicle 11 via the tension roller 53 disposed on the front side of the vehicle 11 with respect to the partition wall 40.

  For this reason, the intersection E1 of the 1st cable 18 and the 2nd cable 19 exists in the location where the 1st cable 18 leaves | separates from the drum 32, and the location where the 2nd cable 19 leaves | separates from the drum 32. Further, the first cable 18 routed from the tension roller 45 to the first outer case 36 and the tension roller 53 routed to the second outer case 37 at approximately the same position as the partition wall 40 in the front-rear direction of the vehicle 11. There is an intersection E2 with the second cable 19 to be performed. FIG. 8 shows a case where the intersection E2 is located on the second plane G2 and the intersection E1 is located away from the second plane G2.

  The intersection E1 between the first cable 18 and the second cable 19 is on the first plane G1 shown in FIG. 8, and the intersection E2 between the first cable 18 and the second cable 19 is on the second plane G2. When the drive unit 17 is viewed in perspective, there is a gap between the first cable 18 and the second cable 19, and the first cable 18 and the second cable 19 are not in contact with each other. The intersection E2 is at a predetermined location in the direction along the first straight line H1 and the second straight line H2 in the first plane G1.

  For this reason, the wiring position of the first cable 18 arranged in the guide hole 36a, the tension roller 45, and the like without providing a part for guiding the first cable 18 between the tension roller 45 and the first outer case 36. The wiring position of the first cable 18 between the first outer case 36 and the first outer case 36 can be provided along the first straight line H1 shown in FIG. Further, without providing a part for guiding the second cable 19 between the tension roller 53 and the second outer case 37, the wiring position of the second cable 19 in the guide hole 37a, the tension roller 53 and the second outer case 37. The wiring position of the second cable 19 can be provided along the second straight line H2 shown in FIG. Therefore, the drive unit 17 can suppress an increase in the number of parts and can be reduced in weight.

  Further, in the first cable 18, tension acts between the first outer case 36 and the tension roller 45, and tension acts between the tension roller 45 and the drum 32, so that the two tensions are combined. A force F1 is applied to the tension roller 45. The acute angle θ1 formed by the first straight line H1 representing the wiring position of the first cable 18 and the third straight line D1 represents the wiring position of the first cable 18 between the tension roller 45 and the drum 32. The angle θ2 on the acute angle side formed by the fourth straight line H3 and the third straight line D1 substantially coincides.

  That is, the direction of the combined force F1 and the direction in which the roller guide 43 moves are arranged on the same third straight line D1. Therefore, an increase in sliding resistance when the roller guide 43 moves along the rail 41 and the guide groove 42 can be suppressed, and the spring load of the two compression coil springs 50 can be reduced.

  Further, in the second cable 19, tension acts between the second outer case 37 and the tension roller 53, and tension acts between the tension roller 53 and the drum 32, so that the two tensions are combined. A force F2 is applied to the tension roller 53. Also, the acute angle θ3 formed by the second straight line H2 representing the wiring position of the second cable 19 between the second outer case 37 and the tension roller 53 and the third straight line D1 is the tension roller 53 and the drum 32. Is substantially coincident with the angle θ4 on the acute angle side formed by the fifth straight line H4 representing the wiring position of the second cable 19 between the third straight line D1 and the third straight line D1.

  For this reason, the direction of the combined force F2 and the direction in which the roller guide 51 moves are arranged on the same third straight line D1. Therefore, an increase in sliding resistance when the roller guide 51 moves along the rail 41 and the guide groove 42 can be suppressed, and the spring load of the two compression coil springs 56 can be reduced. The angles θ1 to θ4 are all angles in the first plane G1.

  As described above, the sliding resistance due to the movement of the first cable 18 can be reduced, the sliding resistance due to the movement of the second cable 19 can be reduced, and the sliding resistance due to the movement of the roller guides 43 and 51 can be reduced. The power loss of the motor 27 can be suppressed, and the operating efficiency of the drive unit 17 is improved.

  The rotation center lines C1 and C2 are arranged on the same third straight line D1, and push heads 49 and 55 and compression coil springs 50 and 56 are arranged between the roller guide 43 and the roller guide 51. Therefore, the drive unit 17 is downsized in the vertical direction of the vehicle 11.

  Further, two compression coil springs 50 are used side by side. For this reason, in order to generate the repulsive force which presses the roller guide 43, each free length in the two compression coil springs 50 can be shortened as much as possible. Further, the assembly work of the two compression coil springs 50 is easy.

  Further, two compression coil springs 56 are used side by side. For this reason, in order to generate the repulsive force which presses the roller guide 51, each free length in the two compression coil springs 56 can be shortened as much as possible. Further, the assembly work of the two compression coil springs 56 is easy.

  Furthermore, the reaction force of the compression coil spring 50 applied to the drive case 22 and the reaction force of the compression coil spring 56 applied to the drive case 22 are generated in opposite directions on the third straight line D1, and the reaction forces cancel each other. Therefore, it is possible to suppress an increase in the fixing force necessary for fixing the drive case 22 to the vehicle body 12.

  Next, another configuration example of the tensioner mechanism provided in the drive unit 17 will be described with reference to FIGS. The drive unit 17 shown in FIG. 9 includes a first tensioner mechanism 57 that applies tension to the first cable 18 and a second tensioner mechanism 58 that applies tension to the second cable 19. In a state where the drive unit 17 is attached to the vehicle 11, the first tensioner mechanism 57 is provided behind the second tensioner mechanism 58 in the front-rear direction of the vehicle 11.

  The first tensioner mechanism 57 and the second tensioner mechanism 58 are provided at symmetrical positions with the second plane G2 therebetween. The second plane G2 is assumed to be substantially vertical in the present embodiment. A partition wall 66 is provided on the plate 34, and the first storage chamber B <b> 1 and the second storage chamber B <b> 2 are arranged with the partition wall 66 interposed therebetween. The partition wall 66 is provided along the second plane G2. For convenience, the first tensioner mechanism 57 will be mainly described. In addition, in the structure shown in FIGS. 9-11, the same structure as FIGS. 1-8 is attached | subjected the same code | symbol. The drive case 22 is covered with a drive cover 23 similar to that shown in FIG. 6, but the drive cover 23 is omitted in FIG.

  As shown in FIG. 10, the first tensioner mechanism 57 includes a roller guide 43 that supports the tension roller 45, a stopper 59, a spring case 60, two metal compression coil springs 61, and a spring cover 62. The two compression coil springs 61 are accommodated in the spring case 60. The two compression coil springs 61 are arranged side by side at different positions in the height direction of the vehicle 11. The spring case 60 is fixed to the box portion 25 by a stopper 59. The stopper 59 can be attached to and detached from the box portion 25. When the stopper 59 is removed from the box portion 25, the spring case 60 can be removed from the box portion 25.

  The spring cover 62 is movable with respect to the spring case 60 along the front-rear direction of the vehicle 11, that is, along the third straight line D1. The spring cover 62 is in contact with the roller guide 43, and the repulsive force of the two compression coil springs 61 is applied to the roller guide 43 through the spring cover 62. That is, the roller guide 43 is pushed away from the spring case 60 by the repulsive force of the two compression coil springs 61, and tension is applied to the first cable 18.

  The second tensioner mechanism 58 includes a roller guide 51 that supports the tension roller 53, a stopper 63, a spring case 64, two compression coil springs, and a spring cover 65. The two compression coil springs are accommodated in the spring case 64. The two compression coil springs are arranged side by side at different positions in the height direction of the vehicle 11. The spring case 64 is fixed to the box portion 25 by a stopper 63. The stopper 63 can be attached to and detached from the box portion 25. When the stopper 63 is removed from the box portion 25, the spring case 64 can be removed from the box portion 25.

  The spring cover 65 is movable with respect to the spring case 64 along the front-rear direction of the vehicle 11, that is, along the third straight line D1. The spring cover 65 is in contact with the roller guide 51, and the repulsive force of the two compression coil springs is applied to the roller guide 51 via the spring cover 65. That is, the roller guide 51 is pushed away from the spring case 64 by the repulsive force of the two compression coil springs, and tension is applied to the second cable 19. The compression coil spring 61 that applies tension to the tension roller 45 and the compression coil spring that applies tension to the tension roller 53 are disposed between the tension roller 45 and the tension roller 53 in the direction along the third straight line D1 on the second plane G2. Yes.

  Furthermore, also in the drive unit 17 of FIG. 9, the positional relationship between the elements described with reference to FIGS. 7 and 8, the positions of the first straight line H1 to the fifth straight line H4 in the first plane G1, and the first plane G1. Values of angle θ1 to angle θ4, positions of intersections E1, E2 on first plane G1, direction of combined forces F1, F2 on first plane G1, positions of rotation center lines C1, C2 on first plane G1, second plane The positions of the tension rollers 45 and 53 separated by G2, the positions of the first outer case 36 and the second outer case 37 separated by the second plane G2, and the like are the same as those of the drive unit 17 of FIGS.

  The drive unit 17 shown in FIGS. 9 to 11 can obtain the same effects as the drive unit 17 of FIG. 3 with respect to the same components as the drive unit 17 of FIGS. Further, the stopper 59 of the first tensioner mechanism 57 and the stopper 63 of the second tensioner mechanism 58 shown in FIG. 9 can be attached or detached separately from the box portion 25.

  The correspondence between the configuration of the present embodiment and the configuration of the present invention will be described. The first outer case 36 corresponds to the first support member of the present invention, and the second outer case 37 is the second support of the present invention. The tension roller 45 corresponds to the first roller of the present invention, the tension roller 53 corresponds to the second roller of the present invention, and the rail 41 and the guide groove 42 correspond to the first guide mechanism of the present invention. And corresponds to a second guide mechanism. The combined force F1 is a reaction force applied to the first pulley of the present invention, and the combined force F2 is a reaction force applied to the second pulley of the present invention. The compression coil spring 50 corresponds to the first elastic member of the present invention, the compression coil spring 56 corresponds to the second elastic member of the present invention, and the compression coil spring 61 corresponds to the first elastic member and the second elastic member of the present invention. Equivalent to.

  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 first straight line and the second straight line may be in the first plane or in a plane that intersects the first plane. The drive unit of the present invention can also 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. Further, the number of the first elastic members or the second elastic members may be any as long as a plurality of the first elastic members or the second elastic members are provided, and three or more each may be provided.

  Further, the axis of the drum may be arranged along a direction intersecting the horizontal direction. In the drive unit of the present invention, the first plane and the axis may not be arranged vertically. Furthermore, both the first intersection and the second intersection may be arranged on the second plane.

  Furthermore, the vehicular opening / closing apparatus 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 vehicle 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 first elastic member and the second elastic member in the present invention include a metal spring and a rubber-like elastic body. The first guide mechanism and the second guide mechanism of the present invention include a convex portion, a concave portion or a groove provided in the drive case, and a convex portion, a concave portion or a groove provided in the drive cover 23. Further, the speed reduction mechanism provided between the output shaft of the electric motor and the drum includes, in addition to the planetary gear mechanism, a worm formed on the outer peripheral surface of the output shaft and a worm wheel having a gear meshing with the worm.

DESCRIPTION OF SYMBOLS 11 Vehicle 12 Car body 12a Opening part 13 Sliding door 14 Roller assembly 15 Guide rail 16 Vehicle opening / closing device (opening / closing device)
17 drive unit 18 first cable 19 second cable 20, 21 reverse pulley 22 drive case 23 drive cover 24 motor cover 25 box part 26 ring part 27 electric motor 28 stator 29 rotor 30 output shaft 31 drum housing chamber 32 drum 33 deceleration mechanism 34 Plate 35 Outer walls 35a, 35b Recess 36 First outer case 36a, 37a Guide hole 37 Second outer case 38, 57 First tensioner mechanism 39, 58 Second tensioner mechanism 40, 66 Partition wall 41 Rail 42 Guide grooves 43, 51 Roller guides 44, 52 Support shaft 45, 53 Tension rollers 46, 59, 63 Stopper 47 Column 48, 54 Pin 49, 55 Push head 50, 56, 61 Compression coil spring 60, 64 Spring case 62, 65 Spring cover A1 Axis B1 1 storage chamber B2 2nd storage chamber C1, C2 rotation center line D1 3rd straight line E1, E2 intersection F1, F2 resultant force G1 1st plane G2 2nd plane H1 1st straight line H2 2nd straight line H3 4th straight line H4 5th Straight line θ1-θ4 angle

Claims (6)

An opening and closing device for a vehicle for opening and closing an opening and closing body provided on a vehicle body,
A drum around which a first cable and a second cable connected to the opening / closing body are wound and rotated about an axis;
A first support member formed in a hollow cylindrical shape and slidably supporting the first cable;
A second support member formed in a hollow cylindrical shape and slidably supporting the second cable;
A first roller on which the first cable is hung between the drum and the first support member and applying tension to the first cable;
A second roller on which the second cable is hung between the drum and the second support member and applying tension to the second cable;
Have
A portion of the first cable disposed between the first support member and the first roller, and a portion of the second cable disposed between the second support member and the second roller. Cross in a plan view of the first plane intersecting the axis,
A portion of the first cable disposed between the first roller and the drum and a portion of the second cable disposed between the second roller and the drum are the first cable. Intersect in plane view,
Of the first cable, a portion disposed between the first roller and the first support member and a portion supported by the first support member are disposed along a first straight line,
Of the second cable, a portion disposed between the second roller and the second support member and a portion supported by the second support member are disposed along a second straight line. , Opening and closing device for vehicles. The vehicle opening / closing device according to claim 1,
A first guide mechanism that supports the first roller movably along a third straight line on the first plane;
A second guide mechanism for supporting the second roller movably along the third straight line on the first plane;
Provided,
The reaction force applied to the first roller by the tension of the first cable is generated along the third straight line,
The vehicle opening and closing device in which a reaction force applied to the second roller by the tension of the second cable is generated along the third straight line. The vehicle opening / closing device according to claim 1,
A first guide mechanism that supports the first roller movably along a third straight line on the first plane;
A second guide mechanism for supporting the second roller movably along the third straight line on the first plane;
Provided,
The first cable is disposed along a fourth straight line between the first guide mechanism and the drum in the first plane,
The second cable is disposed along a fifth straight line between the second guide mechanism and the drum in the first plane;
The acute angle formed by the first straight line and the third straight line coincides with the acute angle formed by the fourth straight line and the third straight line,
An opening / closing device for a vehicle, wherein an acute angle formed by the second straight line and the third straight line coincides with an acute angle formed by the fifth straight line and the third straight line. The vehicular opening and closing device according to claim 2 or 3,
A first elastic member that applies a force in a direction along the third straight line to the first roller to apply tension to the first cable;
A second elastic member that applies a force in a direction along the third straight line to the second roller to apply tension to the second cable;
Is provided,
The vehicular opening and closing device, wherein the first elastic member and the second elastic member are disposed between the first roller and the second roller in a direction along the third straight line. The vehicle opening / closing device according to claim 4,
A plurality of the first elastic members are provided,
A vehicular opening / closing device in which a plurality of the second elastic members are provided. The vehicle opening / closing device according to any one of claims 2 to 5,
The first support member and the second support member are disposed at symmetrical positions across a second plane including the axis;
The vehicle opening / closing device, wherein the first roller and the second roller are disposed symmetrically with respect to the second plane.

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