JP5213776B2 - Automatic switchgear for vehicles - Google Patents

Description

  The present invention relates to an automatic opening / closing device for a vehicle that automatically opens and closes an opening / closing body such as a slide door provided in a vehicle by a driving source.

  In a wagon type or one box type vehicle, a sliding door is often used as an opening / closing body for opening / closing a doorway provided on the side of the vehicle body.

  Roller units are provided at both the upper and lower ends of the sliding door on the front side of the vehicle and the upper and lower intermediate portions on the rear side of the vehicle, respectively, while the upper and lower edges of the vehicle body entrance and exit and the vehicle body side portion behind the vehicle entrance and exit are provided. Each guide rail is fixed, and each roller unit is movably attached to the corresponding guide rail, so that the sliding door is slidable in the vehicle longitudinal direction along the side of the vehicle body. . Further, the guide rail is provided with a linear portion extending in the vehicle front-rear direction and a retracting portion that curves toward the vehicle interior side, and the slide unit is guided toward the vehicle interior side by guiding the roller unit to the retractable portion. It is pulled in and closed to be flush with the side of the car body.

  On the other hand, in order to facilitate the opening and closing operation of the slide door, an automatic opening and closing device has been developed that is driven by a drive unit (drive source) having an electric motor or the like to automatically open and close the slide door. As such an automatic opening / closing device, a cable type device in which the power of the drive unit is transmitted to the sliding door via a cable is often used, and the cable type automatic opening / closing device is provided inside the sliding door. A so-called drive unit self-propelled type in which a drive unit is arranged is known.

  In a self-propelled automatic opening / closing device, a closed side cable and an open side cable are pulled out from the drive unit, and these cables are respectively drawn into the vehicle body side through the roller unit and are also attached to the corresponding longitudinal ends of the guide rails. It is connected. Then, when one cable is wound up by the drive unit and the other cable is rewound, the slide door is pulled by the cable to open and close.

  By the way, in the automatic opening and closing device in which the guide rail is provided with a pull-in portion so that the slide door is drawn into the vehicle interior side and closed, the roller unit is swingably supported by the slide door by the support shaft, and the curved portion of the guide rail is supported. When it passes, it rotates around a support shaft with respect to the slide door.

  Therefore, for example, in the automatic opening and closing device disclosed in Patent Document 1, a pair of pulleys are arranged in the roller unit in the radial direction, and the closed side cable and the open side cable are crossed and guided by these pulleys. Even if the unit swings with respect to the slide door, each cable is reliably guided between the guide rail and the slide door.

JP 2001-336352 A

  However, in the automatic opening / closing apparatus disclosed in Patent Document 1, a pair of pulleys are arranged in the radial direction in the roller unit, and the cables are arranged so as to cross each other. Therefore, the cable routing structure in the roller unit becomes complicated. As a result, the layout of the automatic opening / closing device on the vehicle is reduced.

  Further, in the automatic opening / closing device disclosed in Patent Document 1, each pulley is stored in a case. However, foreign matter such as rainwater or dust enters from the cable lead-out portion of the case, and the operation reliability of the pulley is improved. There was a risk of decline.

  An object of the present invention is to simplify the cable routing structure from the guide rail side to the opening / closing body side, and to improve the layout of the vehicle automatic opening / closing device.

  The automatic opening and closing device for a vehicle according to the present invention is an automatic opening and closing device for a vehicle that automatically opens and closes an opening and closing body provided in the vehicle, and is swingable to the opening and closing body by a guide rail fixed to a vehicle body and a support shaft. A roller unit supported on the guide rail and movably mounted on the guide rail, one end connected to the vicinity of the closed end of the guide rail, and the other end guided to the opening / closing body via the roller unit A cable, one end connected to the vicinity of the open end of the guide rail, and the other end guided to the open / close body via the roller unit, the open / close body disposed on the open / close body, The closed side cable and the open side cable are rotatably supported by the roller unit by a drive source that drives the open side cable to open and close the open / close body and a first guide shaft that is parallel to the support shaft. Between the opposite sides of the first guide means, and the closed side cable and the open side cable, which are disposed closer to the support shaft than the first guide means and are guided from the first guide means. It has the 2nd guide means guided to the direction parallel to an axis | shaft, It is characterized by the above-mentioned.

  In the vehicle automatic opening / closing apparatus according to the present invention, the second guide means is arranged symmetrically along a straight line connecting the shaft center of the support shaft and the shaft center of the first guide shaft. Features.

  In the automatic opening and closing device for a vehicle according to the present invention, a case for housing the first guide means and the second guide means is fixed to the roller unit, and the case is connected to the opening and closing body with the support shaft as an axis. The closed side cable and the open side cable are guided to the drive source from the second guide means via the connecting part.

  The automatic opening and closing device for a vehicle according to the present invention is characterized in that a seal member that elastically slides in contact with the closed cable and the open cable is attached to a cable lead-out portion of the case toward the guide rail. To do.

  The automatic opening and closing device for a vehicle according to the present invention has one end connected to the case and the other end connected to the drive source, and a flexible outer through which the closed cable and the open cable are inserted. It has a tube.

  The automatic opening / closing device for a vehicle according to the present invention is characterized in that a sealing means is provided at the connecting portion.

  The automatic opening / closing device for a vehicle according to the present invention is characterized in that a sealing means is provided between the first guide means and the second guide means of the case.

  In the automatic opening / closing device for a vehicle according to the present invention, the first guide means is provided coaxially with the closed pulley groove over which the closed cable is spanned and the open side over which the open cable is spanned. And a pulley groove.

  In the automatic opening and closing device for a vehicle according to the present invention, the second guide means is rotatably supported by the roller unit by a second guide shaft that is substantially perpendicular to the support shaft, and a closed pulley groove on which the closed cable is stretched. And a closed second pulley provided coaxially and relatively rotatably with the closed second pulley, and an open second pulley provided with an open pulley groove over which the open cable is stretched. And

  According to the present invention, the first guide means rotatably supported by the roller unit by the first guide shaft parallel to the support shaft, and the closed cable and the open side are disposed closer to the support shaft than the first guide means. The second guide means for guiding the cable in a direction parallel to the support shaft guides the closed cable and the open cable between the guide rail and the opening / closing body. The routing structure can be simplified to improve the layout of the vehicle automatic opening / closing device.

  According to the present invention, the second guide means is arranged symmetrically along the straight line connecting the shaft center of the support shaft and the shaft center of the first guide shaft and sandwiching the straight line. By efficiently guiding the closed side cable and the open side cable between the means and the second guide means, it is possible to increase the operating efficiency of the automatic opening / closing device for a vehicle.

  Further, according to the present invention, the case accommodating the first guide means and the second guide means is fixed to the roller unit, and the case is rotatably connected to the opening / closing body with the support shaft as an axis at the connection portion, Since the closed side cable and the open side cable are guided from the second guide means to the drive source via the connecting portion, it is possible to prevent water leakage or the like from a portion where the cable of the opening / closing body is drawn.

  Furthermore, according to the present invention, since the seal member elastically slidably contacting each cable is attached to the cable lead-out portion of the pulley case, the seal member prevents entry of foreign matter or the like into the inside of the pulley case. The operational reliability of the vehicle automatic opening / closing device can be improved.

  Furthermore, according to the present invention, the closed side cable and the open side cable arranged between the case and the drive source are covered with the outer tube, so that rainwater, foreign matter, etc. enter the drive source. Therefore, the operational reliability of the automatic opening / closing device for a vehicle can be improved.

  Further, according to the present invention, since the sealing means is provided at the connecting portion, the sealing means prevents rainwater and foreign matter from entering the opening / closing body, thereby further improving the operational reliability of the vehicle automatic opening / closing device. be able to.

  Furthermore, according to the present invention, since the sealing means is provided between the first guide means and the second guide means of the case, the sealing means prevents rainwater and foreign matter from entering the inside of the opening and closing body. The operational reliability of the vehicle automatic opening / closing device can be further increased.

  Further, according to the present invention, the first guide means includes a closed pulley groove over which the closed side cable is spanned and an open side pulley groove provided coaxially with the closed side pulley groove and over which the open side cable is spanned. Therefore, it can guide smoothly, without contacting corresponding cables by each pulley groove, and can improve the operation reliability of this automatic switchgear for vehicles.

  Furthermore, according to the present invention, the second guide means is provided coaxially and relatively rotatably with the closed second pulley and the closed second pulley provided with the closed pulley groove over which the closed cable is bridged. Since the open side pulley is provided with an open side pulley groove over which the cable is stretched, even if the rotation direction of each second pulley is different, the corresponding cable is smoothly guided to The operational reliability of the switchgear can be increased.

It is a side view showing a part of vehicles provided with a slide door opening and closing device which is one embodiment of the present invention. It is a perspective view which shows the detail of the slide door opening / closing apparatus shown in FIG. It is sectional drawing which shows the internal structure of the pulley apparatus shown in FIG. It is a side view of the pulley apparatus shown in FIG. It is a perspective view which shows the detail of the seal cover shown in FIG. (A) is explanatory drawing which shows the state of the pulley apparatus when a roller unit moves the linear part of a center rail, (b) is the state of a pulley apparatus when a roller unit approaches the drawing-in part of a center rail (C) is explanatory drawing which shows the state of a pulley apparatus when a roller unit moves the drawing-in part of a center rail. (A) is a perspective view which shows the modification of the pulley apparatus shown in FIG. 3, (b) is a top view of the pulley apparatus shown to the figure (a).

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

  FIG. 1 is a side view showing a part of a vehicle provided with a slide door opening / closing device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing details of the sliding door opening / closing device shown in FIG.

  A vehicle 11 shown in FIG. 1 is a one-box type passenger car, and a side door of a vehicle body 12 is provided with a slide door 14 as an opening / closing body for opening and closing an opening 13 for getting on and off.

  A roller unit 15 is provided at an end portion of the slide door 14 on the vehicle rear side and in a substantially middle portion in the vertical direction, and a center rail 16 as a guide rail is fixed to a side portion of the vehicle body 12. As shown in FIG. 2, the roller unit 15 has a structure in which a travel roller 15b and a guide roller 15c are rotatably provided on a main body bracket 15a. The main body bracket 15a is supported by a support bracket 17 fixed to the slide door 14. Is supported by a support shaft 18 in a swingable manner. The support shaft 18 is disposed with its axial direction directed in the vehicle vertical direction, so that the roller unit 15 can swing horizontally with respect to the slide door 14 with the support shaft 18 as an axis.

  On the other hand, as shown in FIG. 2, the center rail 16 includes a straight portion 16a extending in the vehicle front-rear direction and a pull-in portion 16b that bends in the vehicle interior direction with respect to the straight portion 16a. Has been placed. Further, the center rail 16 is formed in a substantially U-shaped cross section, and the roller unit 15 has the center rail 16 so that the traveling roller 15b travels on the center rail 16 and the guide roller 15c is guided by the center rail 16. It is mounted to move freely. As the roller unit 15 moves along the center rail 16, the slide door 14 opens and closes in the vehicle front-rear direction along the side of the vehicle body 12. Further, the roller unit 15 is guided from the straight portion 16a of the center rail 16 to the pull-in portion 16b, so that the slide door 14 is pulled into the vehicle interior and is closed flush with the side surface of the vehicle body 12. ing.

  As shown in FIG. 1, roller units 21 and 22 are also provided at the upper and lower ends of the sliding door 14 on the front side of the vehicle, and upper rails 23 and lower rails 24 are provided at the upper and lower edges of the opening of the vehicle body 12. The roller units 21 and 22 are fixedly attached to the corresponding rails 23 and 24 so as to be movable. That is, the slide door 14 is supported by the vehicle body 12 at a total of three points.

  In order to automatically open and close the sliding door 14, the vehicle 11 is provided with a sliding door opening and closing device 31 (hereinafter referred to as an opening and closing device 31) as an automatic opening and closing device for the vehicle.

  The opening / closing device 31 includes a closed side cable 32a and an open side cable 32b. The closed side cable 32a has one end near the closed side end of the center rail 16, and the center rail 16 or a vehicle body side portion in the vicinity thereof. The other end is led to the slide door 14 side through the roller unit 15. On the other hand, one end of the open side cable 32 b is connected to the center rail 16 or the vehicle body side portion in the vicinity thereof near the open end of the center rail 16 by a connecting member 34, and from there along the center rail 16. The other end is led to the slide door 14 side via the roller unit 15.

  Here, each of the connecting members 33 and 34 is a member for connecting the cables 32a and 32b to the vehicle body side. However, a spring or the like is built in these to constitute a known tension mechanism, and each of the cables 32a and 32b. You may make it provide tension | tensile_strength.

  The vicinity of the closed end of the center rail 16 refers to the vicinity of the end of the direction in which the roller unit 15 moves when the slide door 14 is closed, and the vicinity of the open end of the center rail 16 refers to the slide door 14. Is the vicinity of the end of the direction in which the roller unit 15 moves when is opened.

  A drive unit 35 as a drive source is disposed inside the slide door 14, and the other ends of the cables 32 a and 32 b are connected to the drive unit 35. As shown in FIG. 2, the drive unit 35 includes an electric motor 35a and a mechanism portion 35b fixed to the electric motor 35a. When the electric motor 35a is operated, the cables 32a and 32b are connected to each other by the mechanism portion 35b. It is driven in the reverse direction. That is, the cables 32a and 32b are driven by the drive unit 35. When the drive unit 35 is driven in the pulling direction of the closed cable 32a and the open cable 32b is driven out, the slide door 14 is automatically closed. When the drive unit 35 is driven in the direction in which the closed side cable 32a is extended and the open side cable 32b is driven in the pulling direction, the slide door 14 is automatically opened.

  In order to guide the cables 32 a and 32 b between the center rail 16 and the slide door 14, the roller unit 15 is provided with a pulley device 41.

  3 is a sectional view showing the internal structure of the pulley apparatus shown in FIG. 2, FIG. 4 is a side view of the pulley apparatus shown in FIG. 3, and FIG. 5 is a perspective view showing details of the seal cover shown in FIG. is there.

  As shown in FIGS. 3 and 4, the pulley device 41 includes a distribution pulley 42 as a first guide means including a closed pulley groove 42 a and an open pulley groove 42 b, and the distribution pulley 42. Is rotatably supported on the body bracket 15a of the roller unit 15 by a first pulley shaft 43 as a first guide shaft. Here, the first pulley shaft 43 is arranged in parallel to the support shaft 18 that supports the roller unit 15 on the slide door 14 and closer to the tip of the main body bracket 15a (close to the center rail 16) with respect to the support shaft 18. The pulley grooves 42a and 42b of the sorting pulley 42 are coaxially arranged so as to overlap in the axial direction.

  The closed cable 32a disposed from the closed end of the center rail 16 toward the roller unit 15 is stretched over the closed pulley groove 42a of the distribution pulley 42, and the slide door 14 extends along a direction horizontal to the vehicle 11. To the side where the support shaft 18 of the main body bracket 15a is provided. Further, the open side cable 32b disposed from the open side end of the center rail 16 toward the roller unit 15 is stretched over the open side pulley groove 42b of the distribution pulley 42 from the opposite side to the closed side cable 32a. 11 is guided along the horizontal direction to the side of the slide door 14, that is, the side where the support shaft 18 of the main body bracket 15a is provided.

  Thus, the closed side cable 32a is guided by the distribution pulley groove 42a and the open side cable 32b is guided by the open side pulley groove 42b, so that the corresponding cables 32a and 32b are connected by the pulley grooves 42a and 42b. It is possible to improve the operational efficiency and operational reliability of the opening / closing device 31 by smoothly guiding the opening / closing device 31 without contacting them.

  A pulley case 44 as a case is fixed to the main body bracket 15 a of the roller unit 15, and the sorting pulley 42 is accommodated in the pulley case 44. Cable pulling portions 45a and 45b are provided in the portion of the pulley case 44 facing the center rail 16, and the cables 32a and 32b are drawn into the pulley case 44 from the cable drawing portions 45a and 45b. ing.

  As shown in FIG. 5, in order to prevent foreign matter such as rainwater and dust from entering the inside of the pulley case 44, seal members 45c and 45d are attached to the cable lead portions 45a and 45b of the pulley case 44. Yes. These sealing members 45a and 45d are made of a rubber material and are fixed to the cable lead portions 45a and 45b, respectively. Further, as shown in FIG. 3, the seal members 45c and 45d are provided with a pair of seal holes 45e and 45f through which the cables 32a and 32b are drawn toward the closed end and the closed end of the center rail 16. The cables 32a and 32b are inserted into the corresponding seal holes 45e and 45f and enter and leave the pulley case 44 through the seal holes 45e and 45f. On the inner diameter side of these seal holes 45e and 45f, lip portions (not shown) set slightly smaller than the diameters of the cables 32a and 32b are provided. The seal holes 45e and 45f are pushed by the cables 32a and 32b. It is spread and elastically deformed. As a result, the inner peripheral surfaces of the seal holes 45e and 45f of the seal members 45c and 45d are elastically slidably contacted with the outer peripheral surfaces of the cables 32a and 32b, so that rainwater and foreign matters attached to the operating cables 32a and 32b It is removed by 45c and 45d, and foreign matter is prevented from entering the inside of the pulley case 44 via the cables 32a and 32b.

  The cables 32a and 32b led from the distribution pulley 42 to the side of the support shaft 18 along the horizontal direction to the vehicle 11 are converted to a direction parallel to the support shaft 18, that is, perpendicular to the vehicle 11. In order to guide the drive unit 35 disposed below the roller unit 15, a conversion pulley 46 as a second guide means is provided at a portion closer to the support shaft 18 than the distribution pulley 42 of the roller unit 15. The conversion pulley 46 includes a pair of a closed side conversion pulley 46a as a closed second pulley and an open side conversion pulley 46b as an open second pulley.

  As shown in FIGS. 3 and 4, the pulley case 44 is substantially perpendicular to the support shaft 18 (horizontally to the vehicle 11), and is a straight line L <b> 1 that connects the shaft center of the support shaft 18 and the shaft center of the first pulley shaft 43. A second pulley shaft 47 serving as a second guide shaft is provided between the support shaft 18 and the first pulley shaft 43 and is substantially perpendicular to (shown in FIG. 3), and is closed-side converted. The pulley 46 a and the open side conversion pulley 46 b are rotatably supported by the second pulley shaft 47. As a result, the conversion pulleys 46a and 46b are coaxially and relatively rotatable with each other, and are rotatably supported by the roller unit 15 via the pulley case 44, and the pulley groove extends along the straight line L1 and the straight line L1. It is accommodated in the pulley case 44 in a state of being arranged symmetrically with being sandwiched.

  The closed side cable 32a led to the side of the support shaft 18 from the closed side pulley groove 42a of the distribution pulley 42 along the horizontal direction to the vehicle 11 enters the closed side pulley groove 46c of the closed side conversion pulley 46a from above the vehicle. The travel direction is converted by the conversion pulley 46a to about 90 degrees in a direction parallel to the support shaft 18 (a direction perpendicular to the vehicle 11). Further, the open side cable 32b led to the support shaft 18 side along the horizontal direction from the open side pulley groove 42b of the distribution pulley 42 to the vehicle 11 is inserted into the open side pulley groove 46d of the open side conversion pulley 46b above the vehicle. It is stretched from the side, and the moving direction of the conversion pulley 46b is converted to about 90 degrees in a direction parallel to the support shaft 18 (a direction perpendicular to the vehicle 11).

  Thus, the pair of conversion pulleys 46a and 46b of the closed side conversion pulley 46a and the open side conversion pulley 46b are provided, the closed side cable 32a is passed over the closed side conversion pulley 46a, and the open side cable 32b is connected to the open side conversion pulley 46b. Therefore, even if the rotation directions of the conversion pulleys 46a and 46b are different, the corresponding cables 32a and 32b can be smoothly guided to improve the operation reliability of the switchgear 31.

  A pair of outer tubes 51a and 51b are connected to a bottom surface 44a facing the vehicle lower side of the pulley case 44, and the other end of these outer tubes 51a and 51b is an opening hole 52 provided in the panel 14a of the slide door 14. Are guided to the inside of the slide door 14 and are connected to the mechanism portion 35b of the drive unit 35, respectively. These outer tubes 51a and 51b are formed in a long cylindrical shape having a flexible three-layer structure, and by laminating a liner member, a flat wire member and a covering member in this order from the center side. A resin casing cap 51c is integrally provided at one end of the outer tube 51a, and the casing cap 51c is engaged and connected to the mechanism portion 35b. The resin casing cap 51e is also connected to the other end. Are integrally provided, and the casing cap 51e is engaged and connected to the pulley case 44. Similarly, a resin casing cap 51d is integrally provided at one end of the outer tube 51b, and the casing cap 51d is engaged and connected to the mechanism portion 35b, and a resin casing cap 51f is also integrally formed at the other end. The casing cap 51f is engaged with and connected to the pulley case 44. The cables 32a and 32b are inserted into the corresponding outer tubes 51a and 51b, and the pulley case 44 and the drive unit are connected by the outer tubes 51a and 51b. Guided between 35.

  A connecting portion 53 formed in a cylindrical shape coaxial with the support shaft 18 is provided on the bottom surface 44 a of the pulley case 44. On the other hand, a seal pipe 54 made of a rubber material having a circular cross section as a sealing means communicating with the opening hole 52 is attached to the panel 14 a of the slide door 14, and the connecting portion 53 of the pulley case 44 is attached to the tip of the seal pipe 54. It is elastically inserted and is pivotally connected to the end of the seal pipe 54 with the support shaft 18 as an axis. As a result, when the slide door 14 is guided from the straight portion 16 a of the center rail 16 to the retracting portion 16 b and the roller unit 15 rotates with respect to the slide door 14 about the support shaft 18, the pulley case 44 is connected to the connecting portion 53. It rotates with respect to the seal pipe 54 around the support shaft 18.

  The outer tubes 51 a and 51 b connected to the pulley case 44 are guided to the inside of the slide door 14 from the opening hole 52 through the inside of the seal pipe 54. Therefore, the opening hole 52 for drawing the outer tubes 51a and 51b into the inside of the slide door 14 is covered with the seal pipe 54 and the pulley case 44 and is not exposed to the outside. Intrusion of foreign matter such as rainwater and dust into the interior is prevented. Further, since the outer tubes 51a and 51b are covered with the seal pipe 54 and are not visually recognized from the outside, the aesthetic appearance of the opening / closing device 31 is improved.

  Here, as shown in FIG. 3, each of the outer tubes 51 a and 51 b is positioned on a straight line L <b> 2 that is orthogonal to the straight line L <b> 1 and passes through the axis of the support shaft 18 and is horizontal to the vehicle 11. The cables 32a and 32b guided by the conversion pulleys 46a and 46b are also supported by the connecting portions of the outer tubes 51a and 51b. 18 is guided from a direction parallel to 18. As a result, when the pulley case 44 rotates together with the roller unit 15 about the support shaft 18 with respect to the slide door 14, the connecting portions of the outer tubes 51 a and 51 b with the pulley case 44 are mutually connected about the support shaft 18. The outer tubes 51a and 51b are rotated in the opposite directions, and the outer tubes 51a and 51b are twisted by the same amount in the opposite directions around the support shaft 18, and the amount of twist is suppressed.

  FIG. 6A is an explanatory diagram showing the state of the pulley device when the roller unit moves along the straight portion of the center rail, and FIG. 6B shows the state when the roller unit is approaching the retracting portion of the center rail. FIG. 6C is an explanatory view showing the state of the pulley device, and FIG. 6C is an explanatory view showing the state of the pulley device when the roller unit moves through the retracting portion of the center rail.

  As shown in FIG. 6A, when the slide door 14 is opened from a predetermined opening degree or more and the roller unit 15 is closed on the straight portion 16a of the center rail 16, the slide door 14 is closed as shown in FIG. After the position shown, the roller unit 15 moves to the retracting portion 16b of the center rail 16 as shown in FIG. As the roller unit 15 moves to the pull-in portion 16b, the roller unit 15 rotates about the support shaft 18 with respect to the slide door 14 in accordance with the direction of the pull-in portion 16b.

  When the roller unit 15 rotates about the support shaft 18 with respect to the slide door 14, the pulley device 41 provided in the roller unit 15, that is, the distribution pulley 42 and the conversion pulleys 46 a and 46 b, together with the roller unit 15, center the support shaft 18. Therefore, the cables 32a and 32b are always guided from the center rail 16 side to the slide door 14 side through the distribution pulley 42 and the conversion pulleys 46a and 46b. Further, between the pulley case 44 and the drive unit 35, the cables 32a and 32b are guided by the flexible outer tubes 51a and 51b, so that the roller unit 15 is attached to the slide door 14 around the support shaft 18. Even if it rotates, the outer tubes 51a and 51b are twisted between the pulley case 44 and the opening hole 52 of the slide door 14, so that the cables 32a and 32b are smoothly guided by the outer tubes 51a and 51b. . Further, each outer tube 51a, 51b is connected to the bottom surface 44a of the pulley case 44 at a symmetrical position across the axis of the support shaft 18, so that the roller unit 15 rotates around the support shaft 18. However, the outer tubes 51a and 51b are twisted by the same amount in opposite directions around the support shaft 18, the twist amount is suppressed, and the movement paths of the cables 32a and 32b are not greatly twisted. Its operation is ensured.

  As described above, the opening / closing device 31 includes the distribution pulley 42 rotatably supported by the roller unit 15 by the first pulley shaft 43 parallel to the support shaft 18 and the second pulley shaft 47 perpendicular to the support shaft 18. Since the cables 32a and 32b are guided from the center rail 16 side to the slide door 14 side by the conversion pulley 46 rotatably supported by the roller unit 15, the cables 32a and 32b are connected to the roller unit with a simple handling structure. 15 rotations can be followed. As a result, the routing structure of the cables 32a and 32b in the roller unit 15 can be simplified, and the layout of the switchgear 31 can be improved.

  Further, in this opening / closing device 31, the conversion pulley 46 is arranged symmetrically along the straight line L1 connecting the axis of the support shaft 18 and the axis of the first pulley shaft 43 and sandwiching the straight line L1. It is possible to efficiently guide the closed side cable 32a and the open side cable 32b between the distribution pulley 42 and each of the conversion pulleys 46a and 46b, thereby improving the operation efficiency and the operation reliability of the switchgear 31.

  Further, in this opening / closing device 31, the pulley case 44 that accommodates the distribution pulley 42 and each of the conversion pulleys 46 a and 46 b is fixed to the roller unit 15, and the pulley case 44 is centered on the support shaft 18 at the connecting portion 53. The slide door 14 is pivotably connected, and the closed cable 32a and the open cable 32b are guided from the conversion pulleys 46a and 46b to the drive unit 35 via the connecting portion 53, so that the panel 14a of the slide door 14 is provided. It is possible to prevent water leakage and the like from the opening hole 52 provided in the.

  Fig.7 (a) is a perspective view which shows the modification of the pulley apparatus shown in FIG. 3, FIG.7 (b) is a top view of the pulley apparatus shown to the figure (a).

  In the pulley apparatus 41 shown in FIG. 3, rainwater and foreign matters attached to the cables 32 a and 32 b are removed by the seal members 45 c and 45 d attached to the cable lead portions 45 a and 45 b of the pulley case 44, and the cables 32 a and 32 b are transmitted. Intrusion of foreign matter into the drive unit 35 is prevented. On the other hand, in the pulley device 61 shown in FIGS. 7A and 7B, between the distribution pulley (first guide means) 42 and the conversion pulley (second guide means) 46 inside the pulley case 44. In this portion, a sealing member 62 as a sealing means is provided.

  The seal member 62 includes a main body 62a formed in a rectangular wall shape and a pair of protrusions 62b and 62c. The main body 62a is assembled to the pulley case 44 between the distribution pulley 42 and the conversion pulley 46, and the inside of the pulley case 44 is divided into a part in which the distribution pulley 42 is accommodated and a part in which the conversion pulley 46 is accommodated. doing. On the other hand, each of the protrusions 62b and 62c is provided on the surface of the main body 62a facing the distribution pulley 42 (cable lead-out portions 45a and 45b) and projecting from the surface toward the distribution pulley 42. The projecting portions 62b and 62c are provided with seal holes 62d and 62e at the axial centers thereof. The seal holes 62d and 62e pass through the corresponding protrusions 62b and 62c and the main body 62a, and the corresponding cables 32a and 32b are inserted into the seal holes 62d and 62e. The structure of these seal holes 62d and 62e is the same as that of the seal holes 45e and 45f of the seal members 45c and 45d, and elastically slides on the outer peripheral surfaces of the cables 32a and 32b by lip portions (not shown). The foreign matter can be removed by contact.

  As described above, by providing the seal member 62 between the distribution pulley 42 and the conversion pulley 46, foreign matter can be removed at a stable cable position, and foreign matter can be prevented from entering the drive unit 35. . That is, in the cable lead portions 45a and 45b, the movement directions of the cables 32a and 32b change with the swinging motion of the roller unit 15, but the cables 32a and 32b are arranged between the distribution pulley 42 and the conversion pulley 46. Since it moves only in the axial direction and the moving direction does not change, the sealing member 62 can stably remove foreign matter.

  Further, holes 63a and 63b are formed on the side of the sorting pulley 42 with respect to the seal member 62 of the pulley case 44 and below the protrusions 62b and 62c. Thereby, the foreign matter removed by the projections 62b and 62c is discharged out of the pulley case 44 through the holes 63a and 63b, and the foreign matter is prevented from being clogged inside the pulley case 44.

  In FIG. 7, 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 above-described embodiment, each cable 32a, 32b is guided by one distribution pulley 42 including a closed pulley groove 42a and an open pulley groove 42b. The cables 32a and 32b may be guided by two sorting pulleys that are individually rotatable with pulley grooves 42a and 42b formed individually. In this case, when a tension mechanism is arranged on each connecting member 33, 34, the cable length between each distribution pulley and the connecting member 33, 34 changes slightly. It is particularly effective for the rotation corresponding to Similarly, in the embodiment, the cables 32a and 32b are guided by the separate conversion pulleys 46a and 46b. However, the present invention is not limited to this, and the cables 32a and 32b are guided by one conversion pulley. You may do it.

  Moreover, in the said embodiment, although the 2nd guide means is comprised by a pair of conversion pulley 46a, 46b, it comprises not only this but the slider member provided with the sliding surface on which a cable slides. Any guide means that can guide the cables 32a and 32b in a direction parallel to the support shaft may be used.

  Furthermore, in the above-described embodiment, the pair of conversion pulleys 46a and 46b are rotatably supported by the second pulley shaft 47. However, the present invention is not limited to this, and the respective conversion pulleys 46a and 46b are individually provided. It may be supported on the pulley shaft.

  Further, in the above-described embodiment, the connecting portion 53 of the pulley case 44 is rotatably fitted and connected to the tip of the seal pipe 54 made of a rubber material. Any structure that does not allow foreign matter or the like to enter the opening hole 52 side, such as an O-ring interposed in the connection portion or a labyrinth structure without being inserted, may be used.

  Furthermore, in the above-described embodiment, the outer tubes 51a and 51b have a three-layer structure. However, the outer tubes 51a and 51b are not limited to this, and may be formed to have flexibility such as resin or rubber. That's fine.

  In the above-described embodiment, the center drive system is such that the cables 32a and 32b are connected to the center rail 16. However, the present invention is not limited to this, and for example, the lower drive that connects the cables 32a and 32b to the lower rail 24. It is good also as a system.

DESCRIPTION OF SYMBOLS 11 Vehicle 12 Car body 13 Opening part 14 Sliding door (opening-closing body)
14a Panel 15 Roller unit 15a Body bracket 15b Traveling roller 15c Guide roller 16 Center rail (guide rail)
16a Linear portion 16b Pull-in portion 17 Support bracket 18 Support shaft 21, 22 Roller unit 23 Upper rail 24 Lower rail 31 Slide door opening / closing device (automatic vehicle opening / closing device)
32a Closed cable 32b Open cable 33, 34 Connecting member 35 Drive unit (drive source)
35a Electric motor 35b Mechanism part 41 Pulley device 42 Distribution pulley (1st guide means)
42a Closed-side pulley groove 42b Open-side pulley groove 43 First pulley shaft 44 Pulley case 44a Bottom surface 45a, 45b Cable lead-out portions 45c, 45d Seal members 45e, 45f Seal hole 46 Conversion pulley (second guide means)
46a Closed side conversion pulley 46b Open side conversion pulley 46c Closed side pulley groove 46d Open side pulley groove 47 Second pulley shaft (second guide shaft)
51a, 51b Outer tube 51c, 51d Casing cap 51e, 51f Casing cap 52 Opening hole 53 Connection part 54 Seal pipe (sealing means)
61 Pulley device 62 Seal member (sealing means)
62a Main body 62b, 62c Projection 62d, 62e Seal hole 63a, 63b Hole L1, L2 Straight line

Claims (9)

An automatic opening and closing device for a vehicle that automatically opens and closes an opening and closing body provided in a vehicle,
A guide rail fixed to the vehicle body,
A roller unit that is swingably supported by the opening / closing body by a support shaft and is movably mounted on the guide rail;
One end is connected near the closed end of the guide rail, and the other end is led to the opening / closing body via the roller unit,
One end is connected near the open end of the guide rail, and the other end is led to the opening / closing body via the roller unit;
A drive source disposed on the opening and closing body to drive the closing side cable and the opening side cable to open and close the opening and closing body;
First guide means rotatably supported by the roller unit by a first guide shaft parallel to the support shaft, and the closed side cable and the open side cable are spanned from opposite sides;
The closed cable arranged nearer to the support shaft than the first guide means and guided from the first guide means and the second guide means for guiding the open cable in a direction parallel to the support shaft. An automatic opening and closing device for a vehicle.   2. The automatic opening and closing device for a vehicle according to claim 1, wherein the second guide means is arranged symmetrically along a straight line connecting the axis of the support shaft and the axis of the first guide shaft. An automatic opening and closing device for a vehicle.   3. The automatic opening and closing device for a vehicle according to claim 1, wherein a case for housing the first guide means and the second guide means is fixed to the roller unit, and the case is pivotally connected to the support shaft at the connecting portion. The automatic opening / closing device for a vehicle is connected to the opening / closing body so as to be rotatable, and the closed side cable and the open side cable are led from the second guide means to the drive source through the connecting portion. .   4. The automatic opening / closing device for a vehicle according to claim 3, wherein a seal member that elastically slides on the closed side cable and the open side cable is attached to a cable drawing portion of the case toward the guide rail. An automatic opening / closing device for a vehicle.   5. The automatic opening and closing device for a vehicle according to claim 3, wherein one end is connected to the case and the other end is connected to the drive source, and the closed side cable and the open side cable can be inserted therein. An automatic opening and closing device for a vehicle having a flexible outer tube.   The automatic opening / closing device for a vehicle according to any one of claims 3 to 5, wherein the connecting portion is provided with a sealing means.   6. The automatic opening and closing device for a vehicle according to claim 3, wherein a sealing means is provided between the first guide means and the second guide means of the case. Automatic vehicle opening and closing device.   8. The automatic opening / closing device for a vehicle according to claim 1, wherein the first guide means is provided coaxially with a closed pulley groove and a closed pulley groove over which the closed cable is stretched. An automatic opening / closing device for a vehicle, comprising: an opening-side pulley groove over which the opening-side cable is stretched.   9. The automatic opening / closing device for a vehicle according to claim 1, wherein the second guide means is rotatably supported by the roller unit by a second guide shaft that is substantially perpendicular to the support shaft, and is configured to be closed. A closed second pulley provided with a closed pulley groove over which a side cable is routed and an open pulley groove provided coaxially and relatively rotatably with the closed second pulley and provided with an open pulley groove over which the open cable is routed. An automatic opening / closing device for a vehicle comprising a second pulley on the side.

Images