JP5578067B2 - SLIDE DOOR OPENING / CLOSING DEVICE AND METHOD OF INSTALLING THE SAME - Google Patents

Description

  The present invention relates to a slide door opening / closing device for opening and closing a slide door and an assembling method thereof.

  Conventionally, various slide door opening / closing devices have been proposed. For example, a slide door opening / closing device described in Patent Document 1 includes a rail part (90a), a pulley (91), and a sprocket (92) that guide the movement of a connecting part (1c) with a slide door to a base plate part (90). A drive part (93, 94, 95) for rotationally driving the sprocket, a drive tape (8) wound around the pulley and the sprocket and fixed to the connecting part are disposed. The sliding door opening / closing device is located at a lower part of the entrance / exit (2) formed on the side surface of the vehicle body (4) in a state in which the drive unit and the like are previously incorporated in the base plate part including the rail part. Assemble along the direction.

  Further, the sliding door opening and closing device described in Patent Document 2 is provided with a drive pulley (12) and idle pulleys (17, 18) disposed around the drive pulley on a step panel (14) serving as a stepping board when getting on and off. ), A driven pulley (15), a drive unit (13) for rotationally driving the drive pulley, a belt (16) that is wound around the drive pulley and the driven pulley and linked to the slide door, and the like. The idle pulley is intended to suppress belt detachment (tooth skipping) from the drive pulley by controlling the belt tension and the running path. The sliding door opening and closing device is assembled along the height direction at a portion on the lower side of the entrance / exit formed on the side surface of the vehicle body in a state in which the drive unit and the like are incorporated in the step panel in advance. It has been proposed that the idle pulley is provided with a flange portion (24) to prevent the belt from sagging and the inner taper surface (25) is formed on the flange portion to reduce belt noise. Yes.

Japanese Patent No. 3651186 JP 2006-37502 A

  By the way, since these slide door opening and closing devices are all assembled to a part on the lower side of the entrance / exit in an assembled state in which a drive unit or the like is assembled in advance in a mounting portion (base plate portion, step panel), Although it is excellent in assemblability, it is necessary to secure a sufficient assembling space in the height direction, and it is particularly difficult to mount it on a small car or the like.

  In this case, an insertion hole that opens outward in the vehicle width direction is formed in the vehicle body below the entrance and exit, and an assembled slide door opening / closing device is inserted into the insertion hole and assembled to the vehicle body. Is also possible. However, since the drive unit is overlapped in the axial direction of the drive rotating body (sprocket, drive pulley), that is, in the height direction, it is necessary to open a large insertion hole in the height direction. Is expected to be difficult to install.

  An object of the present invention is to provide a sliding door opening / closing device and an assembling method thereof that can improve the assembling property and mounting property to a vehicle body.

In order to solve the above problems, the invention according to claim 1 is a rail portion for guiding the movement of a guide member connected to a slide door that opens and closes a passenger door formed on a side surface of a vehicle body, and the rail portion. A mounting portion provided on the vehicle body and fixed to the vehicle body, a drive rotator and a plurality of driven rotators disposed on the mounting portion, and the guide member wound around the drive rotator and the plurality of driven rotators. comprising a rope member fixed to said first insertion opening in the vehicle width direction outer side formed in the vehicle body below the lower panel projecting in the vehicle width direction is provided on the vehicle body below the door opening a rail unit that is inserted into the hole, the inserted into the second insertion hole which opens in the vehicle upper side formed in the lower panel Rutotomoni, superimposed on the upper side and is drivingly connected to the drive rotary member of said drive rotor Te, and summarized in that and a driving unit for rotationally driving the drive rotor.

  According to this configuration, the rail unit in which the rail portion, the attachment portion, and the like are incorporated in advance is installed in the vehicle body by being inserted into the first insertion hole from the outside in the vehicle width direction. At this time, since the drive unit is not installed in the rail unit (drive rotating body), the opening dimension of the first insertion hole in the height direction can be reduced. On the other hand, the drive unit is inserted into the second insertion hole from the upper side of the vehicle so as to be drivingly connected to the drive rotating body and installed in the vehicle body. At this time, the second insertion hole is sufficient to have an opening size into which only the drive unit can be inserted, and for example, this can be reduced compared to an opening size into which the drive unit can be inserted together with the rail unit. . As described above, assembling property and mounting property to the vehicle body can be improved as a whole device.

The gist of the invention according to claim 2 is that, in the sliding door opening and closing device according to claim 1, the attachment portion is integrally formed with the rail portion.
According to this configuration, the attachment portion is integrally formed with the rail portion, so that the number of parts can be reduced.

  According to a third aspect of the present invention, in the slide door opening and closing device according to the first or second aspect, the front end of the rail portion is inclined so as to be directed inward in the vehicle width direction toward the front of the vehicle. The gist of the mounting portion is that the front end portion of the rail portion has a protrusion that protrudes outward in the vehicle width direction from the front end portion.

  According to this configuration, when assembling (installing) the rail unit to the vehicle body, an operator places the rail portion into the first insertion hole by placing a hand on the projection portion of the mounting portion. The front end can be supported, and the assembling property can be improved.

According to a fourth aspect of the present invention, there is provided a rail portion for guiding movement of a guide member connected to a slide door that opens and closes a passenger door formed on a side surface of a vehicle body, an attachment portion fixed to the rail portion, and the attachment A drive unit and a plurality of driven rotators arranged in a section; a rail unit comprising a rope member wound around the drive rotators and the plurality of driven rotators and fixed to the guide member; and the drive rotation In a method of assembling a sliding door opening and closing device, wherein a drive unit that is overlapped on the upper side of the body and rotationally drives the drive rotating body is installed in the vehicle body , the vehicle width is provided on the vehicle body below the entrance and exit a first step of inserting the rail unit in a first insertion hole which opens in the vehicle width direction outer side formed in the vehicle body below the lower panel projecting direction, the lower panel With inserting the drive unit to the second insertion hole which opens in the vehicle upper side formed, and summarized in that a second step of drivingly connecting the drive unit to the drive rotor.

  In the present invention, it is possible to provide a sliding door opening / closing device and its assembling method that can improve the assembling property and mounting property to a vehicle body.

1 is a side view schematically showing a first embodiment of the present invention. The disassembled perspective view which shows the embodiment roughly. The top view which shows a rail unit. Sectional drawing along the AA line of FIG. Sectional drawing along the BB line of FIG. The disassembled perspective view which shows the 2nd Embodiment of this invention. Sectional drawing which shows the same embodiment. Sectional drawing which shows the same embodiment.

(First embodiment)
A first embodiment of the present invention will be described with reference to FIG. As shown in FIG. 1, a vehicle body 10 that forms the body of a vehicle such as an automobile has an upper rail 11 that extends in the vehicle front-rear direction along the upper and lower edges of a passenger entrance 10 a formed on the side of the vehicle body 10. And the lower rail 12 as a rail part is each installed. Further, the vehicle body 10 is provided with a center rail 13 extending in the vehicle front-rear direction in the quarter panel 10b behind the entrance 10a. A slide door 20 is supported on the upper rail 11, the lower rail 12, and the center rail 13 so as to be movable in the vehicle front-rear direction via guide roller units 14, 15, and 16, respectively. The guide roller unit 15 constitutes a guide member. The sliding door 20 opens and closes the entrance 10a with the movement in the vehicle front-rear direction.

  As shown in FIG. 2, the vehicle body 10 has a step-like lower panel P that protrudes inward in the vehicle width direction at the lower side of the entrance / exit 10a, and on the outer side in the vehicle width direction below the upper surface of the lower panel P. The first insertion hole 18 is opened. The rail unit 21 on which the lower rail 12 and the like are mounted is inserted into the first insertion hole 18 from the outside in the vehicle width direction and fixed to the vehicle body 10. That is, the first insertion hole 18 has a substantially minimum opening dimension in the vehicle width direction in which only the rail unit 21 can be inserted.

  More specifically, as shown in FIGS. 4 and 5, the vehicle body 10 is opened to the outside in the vehicle width direction and connected to the first insertion hole 18 at the opening end thereof. K. The case K communicates in the vehicle front-rear direction (the direction perpendicular to the paper surface in FIGS. 4 and 5) below the upper surface of the lower panel P.

  On the other hand, as shown in FIG. 3, the rail unit 21 includes the lower rail 12, and a front bracket 22 and a rear bracket fixed to the front end portion, the rear end portion, and the longitudinal intermediate portion of the lower rail 12, for example, by welding. 23 and a center bracket 24. The front bracket 22, the rear bracket 23, and the center bracket 24 constitute an attachment portion. The lower rail 12 is made of, for example, a metal plate, and has a curved portion 12a at a longitudinal intermediate portion thereof, a curved portion 12b that is inclined inward in the vehicle width direction on the front end side of the curved portion 12a, and is further curved. A straight portion 12c extending rearward of the vehicle is provided on the rear end side of the portion 12a. In addition, as shown in FIG. 4, the lower rail 12 has a fixed cross section with a substantially U-shaped cross section that opens downward.

  As shown in FIG. 3, the front bracket 22 is made of, for example, a metal plate, and is fixed to the front end portion of the bent portion 12b. In a portion of the front bracket 22 that protrudes inward in the vehicle width direction from the bent portion 12b, an axial direction (perpendicular to the plane of the paper in FIG. 3) between the lower surface thereof and the substantially U-shaped bracket 25 that opens upward. The driven pulley 26 as a driven rotating body is pivotally supported in such a manner that it is prevented from coming off in the direction in which it is moved. The front bracket 22 has a substantially rectangular protrusion 22a that protrudes outward in the vehicle width direction from the bent portion 12b.

  The rear bracket 23 is made of, for example, a metal plate, and is fixed to the rear end portion of the straight portion 12c. A portion of the rear bracket 23 that protrudes inward in the vehicle width direction from the straight portion 12c is driven in a manner in which the rear bracket 23 is prevented from coming off in the axial direction between the lower surface thereof and the substantially U-shaped bracket 27 that opens upward. A driven pulley 28 as a rotating body is pivotally supported.

  The center bracket 24 is made of, for example, a metal plate, and is fixed over substantially the entire length of the curved portion 12a. The center bracket 24 has a substantially triangular shape that is sharpened inward in the vehicle width direction from the curved portion 12a, and a portion that protrudes inward in the vehicle width direction has a substantially box shape that opens upward from its lower surface. A drive pulley 31 as a drive rotating body and a pair of idle pulleys 32 and 33 are pivotally supported in such a manner that they are prevented from coming off in the axial direction with the housing 29. The idle pulleys 32 and 33 are arranged adjacent to the front and rear sides of the drive pulley 31 on the side closer to the bending portion 12a than the drive pulley 31. The outer surfaces of the housing 29 facing the lower rail 12 at the positions of the idle pulleys 32 and 33 form guide portions 34 and 35 that are bent with a curvature radius smaller than the curvature radius of the bending portion 12a, respectively.

  Gear-like irregularities are formed on the outer peripheral surfaces of the driven pulleys 26, 28, etc., and the driven pulleys 26, 28, etc. are wound around in such a manner that a ring-shaped toothed belt 36 as a rope member is engaged. It has been. That is, the toothed belt 36 extending forward from the rear driven pulley 28 toward the front driven pulley 26 on the side close to the lower rail 12 is slidably brought into contact with and guided by the guide portions 34 and 35. Then, the toothed belt 36 is wound around the driven pulley 26 in the clockwise direction in the drawing and turned toward the rear of the vehicle on the side away from the lower rail 12. The toothed belt 36 extending toward the rear of the vehicle toward the front idle pulley 32 is wound around the idle pulley 32 on the side close to the lower rail 12 in the counterclockwise direction in the figure, and the drive pulley 31 on the side away from the lower rail 12. Is wound around the rear idler pulley 33 on the side close to the lower rail 12 in the counterclockwise direction shown in the figure. Then, the toothed belt 36 extending rearward from the rear idle pulley 33 toward the rear driven pulley 28 is wound around the driven pulley 28 in the clockwise direction in the drawing and turned to the front of the vehicle, and close to the lower rail 12. Connect to the side part. Note that an arcuate bracket 37 made of, for example, a metal plate is fixed to a fixed portion 36 a provided at a predetermined position on the side close to the lower rail 12 of the toothed belt 36.

  As shown in FIG. 5, the rail unit 21 configured in this manner is attached to a plurality of nuts 56 welded to the lower surfaces of the front bracket 22, the rear bracket 23, and the center bracket 24, as shown in FIG. The fastening member 57 such as a fastening bolt or a screw that penetrates a wall or the like is fastened to be fixed to the vehicle body 10. That is, the front bracket 22, the rear bracket 23, and the center bracket 24 have a function of fixing the rail unit 21 to the vehicle body 10 in addition to a function of supporting the drive pulley 31 and the like. In particular, as shown in FIG. 3, the front bracket 22 is fixed to the vehicle body 10 in a more stable state with nuts 56 disposed on both sides in the vehicle width direction across the lower rail 12.

  As shown in FIG. 4, the bracket 37 is fastened to the guide roller unit 15. That is, the guide roller unit 15 has a roller support bracket 41 that is rotatably connected to the lower portion of the slide door 20 around a rotation axis extending in the height direction and is inserted into the case K from the first insertion hole 18. The roller support bracket 41 is fastened to the bracket 37. The guide roller unit 15 includes a pair of guide rollers 42 and a load roller 43 disposed between the guide rollers 42. The guide roller unit 15 is configured such that the load roller 43 is rotatably supported by the case K in the first insertion hole 18 in a state where both guide rollers 42 are rotatably mounted on the lower rail 12. 10 is movably supported.

  Therefore, the slide door 20 connected to the guide roller unit 15 slides in the vehicle front-rear direction as the load roller 43 rolls in the case K in such a manner that both guide rollers 42 are guided by the lower rail 12. The entrance 10a is opened and closed. In particular, the slide door 20 is pushed to the outside of the vehicle immediately after the guide roller 42 is guided by the curved portion 12a or the bent portion 12b, for example, immediately after opening from the fully closed position, or immediately before the fully closed position is reached. Is pulled into the car. This is because the sliding door 20 is allowed to slide backward when the sliding door 20 is opened, and is arranged so as to be flush with the side surface of the vehicle body 10 when fully closed. As shown in FIG. 4, seal members 46 and 47 are fixed to the vehicle body 10 on the upper and lower sides of the first insertion hole 18, respectively. The seal members 46 and 47 protrude outward in the vehicle width direction, and are in fluid-tight pressure contact with the slide door 20 in the fully closed position.

  As shown in FIG. 2, the lower panel P is formed with a second insertion hole 19 that opens to the upper side of the vehicle in accordance with the arrangement of the center bracket 24 (drive pulley 31). The drive unit 50 is inserted into the second insertion hole 19 from the upper side of the vehicle and fixed on the case K. That is, the second insertion hole 19 has a substantially minimum opening size into which only the drive unit 50 can be inserted. As shown in FIG. 4, the drive unit 50 includes an electric motor 51 and a speed reducer 52 that decelerates the rotation of the electric motor 51. The drive unit 50 protrudes downward from the vehicle and protrudes from the upper wall of the case K and the center bracket. An output shaft 53 that passes through 24 is drivably coupled to a drive pulley 31 in the housing 29. Therefore, when the electric motor 51 is driven, the rotation is decelerated by the speed reducer 52 and transmitted to the drive pulley 31 via the output shaft 53. As a result, the drive pulley 31 rotates and the toothed belt 36 moves in a direction corresponding to the rotation direction. The upper side of the second insertion hole 19 (lower panel P) into which the drive unit 50 is inserted is covered with a plate-like step trim 54 made of, for example, a resin material, and is hidden from the outside.

  Here, in FIG. 3, for example, it is assumed that the drive pulley 31 is rotated clockwise in the drawing. At this time, the toothed belt 36 as a whole rotates in the clockwise direction in the drawing, so that the fixing portion 36a to which the guide roller unit 15 is fixed moves forward of the vehicle, and the slide door 20 is closed. On the contrary, it is assumed that the drive pulley 31 is rotated counterclockwise in the drawing. At this time, the toothed belt 36 as a whole rotates counterclockwise in the drawing, whereby the fixing portion 36a to which the guide roller unit 15 is fixed moves to the rear of the vehicle, and the slide door 20 is opened.

Next, the operation at the time of assembly of this embodiment will be described.
In assembling the sliding door opening / closing device, the operator inserts the rail unit 21 in which the lower rail 12, the front bracket 22, the rear bracket 23, the center bracket 24, and the like are previously assembled into the first insertion hole 18 from the vehicle width direction outside. The upper surface of the front bracket 22 or the like is brought into close contact with the lower surface of the upper wall of the case K. At this time, as shown in FIG. 5, the operator places a hand on the protrusion 22 a of the front bracket 22 to support and position the bent portion 12 b of the lower rail 12 entering the first insertion hole 18. . Then, the operator fastens a fastener 57 that passes through the lower panel P and the upper wall of the case K to each nut 56. Thereby, the rail unit 21 is fixed and installed on the upper wall (vehicle body 10) in the case K (first step).

  Subsequently, the operator inserts the drive unit 50 into the second insertion hole 19 from the upper side of the vehicle, and connects the output shaft 53 penetrating the upper wall of the case K and the center bracket 24 so as to rotate integrally with the drive pulley 31. At the same time, the speed reducer 52 (drive unit 50) is fixed on the case K. As a result, the drive unit 50 is fixed and installed on the case K (vehicle body 10) in the second insertion hole 19 (second step).

As described above in detail, according to the present embodiment, the following effects can be obtained.
(1) In the present embodiment, the rail unit 21 in which the lower rail 12, the front bracket 22, the rear bracket 23, the center bracket 24, and the like are incorporated in advance is inserted into the first insertion hole 18 from the outside in the vehicle width direction, whereby the vehicle body 10 Installed. At this time, since the drive unit 50 is not installed in the rail unit 21 (drive pulley 31), the opening size of the first insertion hole 18 in the height direction can be reduced. On the other hand, the drive unit 50 is installed in the vehicle body 10 by being connected to the drive pulley 31 by being inserted into the second insertion hole 19 from above the vehicle. At this time, the second insertion hole 19 suffices to have an opening size into which only the drive unit 50 can be inserted, so that it can be reduced as compared with an opening size into which the drive unit 50 can be inserted together with the rail unit 21, for example. . As described above, assembling property and mounting property to the vehicle body 10 can be improved as a whole device.

  (2) In this embodiment, when assembling (installing) the rail unit 21 to the vehicle body 10, the operator enters the first insertion hole 18 by placing a hand on the protrusion 22 a of the front bracket 22. The front end portion (curved portion 12b) of the lower rail 12 can be supported. Thereby, the operator can smoothly perform the tightening work from the upper side by the fastener 57, and can improve workability and assemblability.

  (3) In the present embodiment, the front bracket 22 is fastened by the nut 56 and the fastener 57 at both sides in the vehicle width direction with the front end portion (curved portion 12b) of the lower rail 12 interposed therebetween, and the upper wall of the case K The vehicle body 10 can be fixed in a more stable state. In particular, the bent portion 12b to which the front bracket 22 is fixed receives the reaction force of the seal members 46 and 47 on the outside when the slide door 20 is in the fully closed position, whereby the guide roller unit 15 (guide roller 42). Therefore, the guide roller unit 15 can be held more firmly correspondingly.

  (4) In the present embodiment, the front bracket 22, the rear bracket 23, and the rear bracket 12 are provided only at positions necessary for the shaft support such as the drive pulley 31 with respect to the lower rail 12 that is essential for supporting the slide door 20 (guide roller unit 15). Since the center bracket 24 is disposed, the weight of the entire apparatus can be further reduced.

  (5) In this embodiment, since the rail unit 21 is inserted into the first insertion hole 18 in the vehicle width direction, for example, a seal structure (seal members 46, 47, etc.) peculiar to a small car or a light car is achieved. However, the rail unit 21 (sliding door opening and closing device) can be mounted on the lower side of the entrance 10a. That is, since the sliding door opening and closing device can be mounted without changing the height (step height) of the step trim 54 with the seal structure, boarding / exiting performance is not impaired. In addition, since the sliding door opening and closing device can be mounted without changing the seal structure, changes on the vehicle body 10 (body panel) side can be minimized, and for example, an increase in mass and an increase in cost due to an increase in the panel can be suppressed. it can.

  (6) In this embodiment, since the rail unit 21 and the drive unit 50 can be separated and assembled separately to the vehicle body 10, it is possible to improve the assemblability and mountability to the vehicle body 10. Can do.

  (7) In this embodiment, even if it is difficult for the vehicle to secure the space inside the quarter panel 10b (quarter part) or inside the slide door 20, the slide door can be opened and closed by using the lower side of the entrance 10a. The device can be installed. In other words, it is not necessary to increase the thickness of the door and the quarter portion, particularly in a small vehicle or a light vehicle having a narrow vehicle width, so that it is possible to avoid a reduction in the space in the vehicle interior.

  (8) In this embodiment, unlike the type in which the drive unit is disposed in the door or inside the quarter portion, there is no cable penetrating the vehicle body or the opening in the door. No need to perform the work of locking to the cable or the work of penetrating the cable through the opening in the vehicle body or door.

(Second Embodiment)
A second embodiment of the present invention will be described with reference to FIG. In addition, since 2nd Embodiment is the structure which changed the arrangement | positioning of the drive unit 50 according to this changing the structure of the rail unit of 1st Embodiment, the detailed description is similar about the same part. Omitted.

  As shown in FIG. 6, the rail unit 60 of the present embodiment includes a rail panel 61 made of, for example, a metal plate press material. The rail panel 61 integrally includes a rail portion 61a having an outer shape equivalent to that of the lower rail 12 and a flat mounting portion 61b extending inward in the vehicle width direction along the extending direction of the rail portion 61a. Have.

  A drive pulley 62 as a drive rotator and a pair of idle pulleys 63 and 64 are pivotally supported on the lower surface of the rear end of the mounting portion 61b, and a driven pulley 65 as a driven rotator is provided behind the idle pulley 64. It is pivotally supported. The idle pulleys 63 and 64 are disposed adjacent to the front and rear sides of the drive pulley 62. Further, a driven pulley 66 as a driven rotating body is pivotally supported on the lower surface of the front end portion of the attachment portion 61b, and an intermediate pulley 67 is pivotally supported on the lower surface of the intermediate portion in the longitudinal direction of the attachment portion 61b. Gear-shaped irregularities are formed on the outer peripheral surface of the drive pulley 62 and the like, and a ring-shaped toothed belt 68 as a rope member is wound around the drive pulley 62 and the like.

  The rail unit 60 configured in this way is inserted into the first insertion hole 18 from the outside in the vehicle width direction. That is, the first insertion hole 18 has a substantially minimum opening dimension in the vehicle width direction in which only the rail unit 60 can be inserted. Then, as shown in FIG. 8, the rail unit 60 has a plurality of nuts 56 welded to the lower surface of the mounting portion 61b to fasten a fastener 57 that penetrates the lower panel P and the upper wall of the case K. It is fixed to the vehicle body 10. That is, the mounting portion 61b has a function of fixing the rail unit 60 to the vehicle body 10 in addition to a function of pivotally supporting the drive pulley 62 and the like.

  In addition, as shown in FIG. 7, the rail part 61a which has a substantially U-shaped fixed cross section opened downward is the connection part 61c turned up from the opening edge (lower end edge) inside a vehicle width direction. In, the connection part 61b is connected to the outer edge in the vehicle width direction. As a result, a sufficient guide allowance for the guide roller 42 is secured in the rail portion 61a, and a space is secured below the connecting portion 61c to avoid interference with peripheral components (the toothed belt 68 and the like).

  As shown in FIG. 6, the lower panel P is formed with a second insertion hole 69 that opens to the vehicle upper side in accordance with the arrangement of the drive pulley 62. The drive unit 50 is inserted into the second insertion hole 69 from the upper side of the vehicle and fixed on the case K. That is, the second insertion hole 69 has a substantially minimum opening size into which only the drive unit 50 can be inserted. The drive unit 50 is drivingly connected to the drive pulley 62 at the output shaft 53 that protrudes downward from the vehicle and penetrates the upper wall of the case K and the mounting portion 61b.

As described above in detail, according to the present embodiment, the following effects can be obtained in addition to the effects (1), (5) to (8) in the first embodiment.
(1) In the present embodiment, the mounting portion 61b having functions related to the shaft support such as the drive pulley 62 and the fixing to the vehicle body 10 is formed integrally with the rail portion 61a, thereby reducing the number of parts. That can reduce costs. Moreover, the mass of the rail panel 61 (rail unit 60) can be reduced.

  (2) In the present embodiment, the rail portion 61a and the mounting portion 61b for fixing to the vehicle body 10 are integrated, so that the position between the rail portion 61a and the mounting portion 61b as a single rail panel 61 is obtained. Accuracy can be improved. Since there is no separate part (such as a bracket) between the rail portion 61a and the vehicle body 10 (case K), the positional accuracy of the rail portion 61a with respect to the vehicle body 10 can be improved. The reproducibility (stability) can be improved.

In addition, you may change the said embodiment as follows.
In the first embodiment, the lower rail 12 and at least one of the front bracket 22, the rear bracket 23, and the center bracket 24 may be integrally formed. In this case, the lower rail 12 or the like may be a metal plate press material or a resin material reinforced with glass fiber or carbon fiber.

-In the said 2nd Embodiment, the attaching part 61b may have the projection part which protrudes in a vehicle width direction outer side rather than this front-end part in the front-end part of the rail part 61a.
In the second embodiment, the rail panel 61 may be a resin material reinforced with glass fiber or carbon fiber.

-In the said 2nd Embodiment, the rail panel 61 which joined these by making the rail part 61a and the attaching part 61b into separate components may be sufficient.
-In each said embodiment, you may employ | adopt a cable as a rope member which concerns on power transmission. In this case, a drum (pipe winding) may be employed as a driving rotating body that is drivingly connected to the driving unit 50.

  In each of the above embodiments, the shape of the lower panel P is an example, and may be, for example, a planar shape that extends along the vehicle floor. The shape of the second insertion holes 19 and 69 may be a shape that can surround the entire drive unit 50 or a shape that can surround only a part of the drive unit 50. In short, it may be hidden under the vehicle floor (step trim 54) so as not to impair the appearance and the like.

Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
(A) In the sliding door opening and closing device according to claim 3,
The sliding door opening and closing device, wherein the attachment portion is fixed to the vehicle body at both sides in the vehicle width direction across the front end portion of the rail portion. According to this configuration, the mounting portion can be fixed in a more stable state with respect to the vehicle body at portions on both sides in the vehicle width direction across the front end portion of the rail portion.

  P ... Lower panel, K ... Case, 10 ... Vehicle body, 10a ... Entrance / exit, 12 ... Lower rail (rail part), 12b ... Curved part (front end), 15 ... Guide roller unit (guide member), 18 ... First Insertion holes 19, 69 ... second insertion holes, 20 ... slide doors, 21, 60 ... rail unit, 22 ... front bracket (mounting part), 22a ... projection, 23 ... rear bracket (mounting part), 24 ... center Bracket (mounting portion), 26, 28, 65, 66 ... driven pulley (driven rotating body), 31, 62 ... driving pulley (driving rotating body), 36, 68 ... toothed belt (rope member), 50 ... driving unit 61 ... Rail panel, 61a ... Rail part, 61b ... Mounting part.

Claims (4)

A rail part for guiding the movement of a guide member connected to a slide door that opens and closes a doorway formed on a side surface of the vehicle body, an attachment part provided on the rail part and fixed to the vehicle body, and arranged on the attachment part set by the drive rotary member and a plurality of driven rotating bodies, and comprising a rope member fixed to the guide member wound around the driving rotor and a plurality of driven rotating bodies, the entrance is provided on the vehicle body A rail unit that is inserted into a first insertion hole that is formed in the vehicle body on the lower side of the lower panel that protrudes in the vehicle width direction on the lower side and opens to the vehicle width direction outside;
Rutotomoni is inserted into the second insertion hole which opens in the vehicle upper side formed in the lower panel, the driving rotator superposed on the upper side and is drivingly connected to the drive rotary member, a drive for rotating the drive rotary member A sliding door opening and closing device comprising a unit. The sliding door opening and closing device according to claim 1,
The sliding door opening and closing device, wherein the attachment portion is integrally formed with the rail portion. In the sliding door opening and closing device according to claim 1 or 2,
The front end portion of the rail portion is inclined so as to go inward in the vehicle width direction toward the front of the vehicle,
The mounting portion has a protrusion at the front end portion of the rail portion that protrudes outward in the vehicle width direction from the front end portion. A rail portion for guiding the movement of a guide member connected to a slide door that opens and closes a passenger door formed on a side surface of a vehicle body, an attachment portion fixed to the rail portion, and a drive rotator disposed on the attachment portion And a plurality of driven rotators, a rail unit including a rope member that is wound around the drive rotators and the plurality of driven rotators and fixed to the guide member, and is overlapped on the drive rotator to drive the drive In the method of assembling the sliding door opening and closing device for installing on the vehicle body a drive unit that rotationally drives the rotating body,
The rail unit is inserted into a first insertion hole that is provided in the vehicle body and that is formed in the vehicle body on the lower side of the lower panel that protrudes in the vehicle width direction on the lower side of the entrance and exit. 1 process,
A sliding door opening and closing comprising: a second step of inserting the drive unit into a second insertion hole formed in the lower panel and opening upward of the vehicle, and drivingly connecting the drive unit to the drive rotating body. How to assemble the device.

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