JP6244686B2 - Vehicle door opening and closing drive device - Google Patents

Description

  The present invention relates to a vehicle door opening / closing drive device.

  2. Description of the Related Art Conventionally, a vehicle door opening / closing drive device is linked to a vehicle door (sliding door) supported by a vehicle body on a belt (rope member) that is stretched around a pulley or the like. In this device, the belt is moved by an electric motor to drive (open / close) the vehicle door in the vehicle front-rear direction.

  As shown in FIG. 6, for example, the vehicle door opening / closing drive device described in Patent Document 1 includes a resin support member 91. The support member 91 integrally includes a pair of support wall portions 91a and 91b arranged in parallel in the vehicle height direction. Both support wall portions 91a and 91b each have a substantially U-shape (non-annular shape) that opens in a radial direction toward a contact portion with the belt 93 that is hung on the pulley 92 with the pulley 92 as a center. The pulley 92 is rotatably supported around the support pin 94 by inserting a support pin 94 into which the axial end portion is press-fitted into the support wall portions 91a and 91b.

Japanese Patent No. 5018867

  By the way, in Patent Document 1, when the support pin 94 is continuously received in the non-annular shape of the support member 91 (support wall portions 91a and 91b), the non-annular shape that is deformed by the press-fit load of the support pin 94 remains in a deformed state. The so-called creep deformation may occur and the support of the support pin 94 may be loosened. In the case where the belt 93 is not originally tensioned or when the tension is temporarily released, the support pin 94 may be removed. Further, the support pins 94 are rotated along with the rotation of the pulley 92, and there is a possibility that the rotation support of the pulley 92 is not intended.

  On the other hand, an annular shape having a through hole into which a support pin can be inserted is also known as a support wall. However, in this case, in the support wall portion, a joint portion, that is, a so-called weld is generated at the joining portion of the resin in a molten state that has branched and flowed around the through hole at the time of molding. Therefore, when a support pin is press-fitted into such a through-hole to prevent slipping and rotation, cracks may occur in the support wall portion starting from the weld due to the press-fitting load. Accordingly, even in this case, there is a possibility that the support pin is pulled out in the same manner, or the support pin is rotated along with the rotation of the pulley.

  An object of the present invention is to provide a vehicle door opening / closing drive device capable of suppressing the support pin that rotatably supports the pulley from being pulled out or being rotated with the rotation of the pulley.

A vehicle door opening / closing drive device that solves the above problems opens and closes a plurality of pulleys including a driving pulley driven by an electric drive source, and an opening formed in the vehicle body by being hung on the plurality of pulleys. A rope member linked to a vehicle door, and the vehicle door is configured to open and close the opening when the rope member moves by driving the driving pulley, and is inserted into the pulley. A support pin that rotatably supports the pulley around an axis extending in the vehicle height direction, and a resin support member, the support member including a first support wall portion arranged in parallel in the vehicle height direction; and a second support wall portion, wherein the first support wall portion, the engaging groove formed in the end portion of one side of the support pin projecting from the through hole formed in the first support wall portion Engage the axis of the support pin It is formed engaging claw for regulating the movement of direction, wherein the second support wall portion, regulates the rotation of the support pin fitting portion formed at an end portion of the other side of the support pin is fitted A fitting recess is formed, and the one end portion of the support pin is located farther from the other end portion of the support pin than the engagement groove, and is directed toward the engagement groove side. Thus, a taper shape that expands in diameter is formed .

  According to this configuration, the support pin that rotatably supports the pulley is prevented from coming off by restricting movement in the axial direction relative to the support member by engaging the engagement claw into the engagement groove. . Further, the support pin is restricted from rotating with respect to the support member by fitting the fitting portion into the fitting recess. Thus, by avoiding the occurrence of press-fitting load in the support pin support by the first support wall portion and the second support wall portion, the creep deformation of the first support wall portion and the second support wall portion can be reduced. Generation of cracks can be suppressed. And possibility that the said support pin will fall out or the said support pin will rotate with the rotation of the said pulley can be reduced.

  In the vehicle door opening / closing drive device, the fitting portion has at least two flat portions parallel to the axis of the support pin, and the one flat portion faces the rope member that is hung on the pulley. And it is preferable to arrange | position so that it may orthogonally cross with respect to the load input direction from this rope member.

According to this configuration, the surface pressure can be lowered by the amount of the load from the rope member that is distributed and received by the one plane portion, and the load from the rope member can be suitably supported.
In the vehicle door opening / closing drive device, the support pin is formed with a first step and a second step that contact with the peripheral portion of the insertion hole and the peripheral portion of the fitting recess in one axial direction. It is preferable.

  According to this configuration, when the support pin is inserted into the insertion hole and the fitting recess in the one direction in the axial direction, the first step and the second step are the peripheral portions of the insertion hole, respectively. And the further insertion is controlled by contact | abutting to the peripheral part of the said fitting recessed part, respectively. In the support state of the support pin by the support member, the distance between the first support wall portion and the second support wall portion along the axial direction of the support pin is the first step and the first step along the direction. By maintaining a constant value based on the distance between the two steps, for example, the operation of the pulley disposed between the first support wall portion and the second support wall portion can be further stabilized.

  INDUSTRIAL APPLICABILITY The present invention has an effect that it is possible to suppress the support pin that rotatably supports the pulley from being pulled out or being rotated along with the rotation of the pulley.

The top view which shows the 1st Embodiment of this invention. FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. The bottom view which shows the same embodiment. The side view which shows a vehicle. Sectional drawing which shows the 2nd Embodiment of this invention. The disassembled perspective view which shows a conventional form.

(First embodiment)
Hereinafter, a first embodiment of a vehicle door opening and closing drive device will be described. In the following, the vehicle front-rear direction is referred to as “front-rear direction”, and the upper and lower directions in the vehicle height direction are referred to as “upward” and “downward”, respectively. Further, the inner side in the vehicle width direction toward the vehicle interior is referred to as “vehicle inner side”, and the outer side in the vehicle width direction toward the vehicle outer side is referred to as “vehicle outer side”.

  As shown in FIG. 4, the vehicle body 10 such as an automobile has an upper rail 11 and a lower rail 12 that extend in the front-rear direction along the upper and lower edges of an entrance 10 a as an opening formed on the side of the vehicle body 10. Each is installed. Further, the vehicle body 10 is provided with a center rail 13 extending in the front-rear direction in the quarter panel 10b behind the entrance 10a. The upper rail 11, the lower rail 12, and the center rail 13 support the slide door 20 so as to be movable in the front-rear direction via guide roller units 14, 15, and 16, respectively. The sliding door 20 opens and closes the entrance 10a as it moves in the front-rear direction.

  As shown in FIG. 1, the lower rail 12 is made of, for example, a metal plate, and has a curved portion 12 a at a longitudinal intermediate portion thereof, and a curved portion 12 b that is inclined toward the vehicle inner side at the front end side of the curved portion 12 a. And a linear portion 12c extending rearward of the vehicle on the rear end side of the curved portion 12a.

  The vehicle body 10 is provided with a drive unit 21 adjacent to the inner side of the lower rail 12. The drive unit 21 has a frame portion 22 as a support member made of, for example, a resin material that extends in the front-rear direction along the lower rail 12, and has a drive portion 25 installed at the front end portion of the frame portion 22. . A driven pulley 23 as a pulley is supported at the rear end portion of the frame portion 22 so as to be rotatable around an axis extending in the vehicle height direction, and is idled as a pulley at a middle portion in the front-rear direction near the curved portion 12a. The pulley 24 is supported so as to be rotatable around an axis extending in the vehicle height direction.

  On the other hand, the drive unit 25 includes an attachment member 26 made of, for example, a metal plate, and a motor 27 with a speed reducer fixed to the attachment member 26. The motor 27 rotationally drives a driving pulley 27a connected to the output shaft about an axis extending in the vehicle height direction. A tension pulley 28 as a pulley is supported on the mounting member 26 so as to be adjacent to the lower side of the pulley 27a in the figure so as to be rotatable about an axis extending in the vehicle height direction, and adjacent to the lower left side of the pulley 27a in the figure. A driven pulley 29 as a pulley is supported so as to be rotatable around an axis extending in the vehicle height direction.

  A ring-shaped endless toothed belt 30 as a rope member is wound around the driven pulley 23 and the like. That is, the endless toothed belt 30 extending rearward of the vehicle from the front driven pulley 29 toward the rear driven pulley 23 on the side close to the lower rail 12 is wound around the driven pulley 23 counterclockwise as shown in FIG. Turn to the front of the vehicle on the far side. An endless toothed belt 30 extending forward of the vehicle toward the idle pulley 24 is wound clockwise around the idle pulley 24 on the side close to the lower rail 12 and is shown on the tension pulley 28 on the side close to the lower rail 12. Winded clockwise. Subsequently, the endless toothed belt 30 is wound around the pulley 27a in the illustrated counterclockwise direction on the side away from the lower rail 12, and is wound on the front driven pulley 29 in the illustrated counterclockwise direction on the side close to the lower rail 12. It turns rearward and is connected to a part on the side close to the lower rail 12.

  Therefore, when the pulley 27a is rotationally driven by the motor 27, the endless toothed belt 30 moves along the frame portion 22 (lower rail 12) in a direction corresponding to the rotational direction. In addition, a substantially trapezoidal bracket 31 made of, for example, a metal plate is fixed to a predetermined position on the side close to the lower rail 12 of the endless toothed belt 30 (position in the vicinity of the driven pulley 23 in the state of FIG. 1). The guide roller unit 15 is fastened to the bracket 31.

  Here, in FIG. 1, for example, it is assumed that the driving pulley 27a rotates clockwise in the figure. At this time, the endless toothed belt 30 as a whole rotates clockwise in the figure, whereby the bracket 31 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 driving pulley 27a rotates counterclockwise in the figure. At this time, the endless toothed belt 30 as a whole rotates counterclockwise in the figure, whereby the bracket 31 to which the guide roller unit 15 is fixed moves rearward of the vehicle, and the slide door 20 is opened.

  In particular, the slide door 20 is pushed out of the vehicle immediately after the guide roller unit 15 is guided to the curved portion 12a or the curved 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 the sliding door 20 is fully closed.

Next, the support structure of the driven pulley 23 will be described.
As shown in FIG. 2, the frame portion 22 includes a pulley support portion 41 having a substantially U-shaped cross section that opens toward the rear of the vehicle at the rear end portion. The pulley support portion 41 includes a support flange 42 as a substantially flat plate-like first support wall portion and a support flange 43 as a second support wall portion arranged in parallel in the vehicle height direction. The support flanges 42 and 43 are respectively formed with circular insertion holes 47 and attachment holes 48 that are concentric with each other and open in the vehicle height direction. The mounting hole 48 includes a circular insertion hole 48a and a hexagonal fitting hole 48b as a fitting recess that is wider than the insertion hole 48a. A boundary portion between the fitting hole 48b and the insertion hole 48a forms an annular peripheral portion 48c.

  In addition, the pulley support portion 41 includes a plurality (four) of engaging claws 49 that protrude upward from the peripheral portion of the insertion hole 47 at an equal angle (90 degrees) interval. The upper end portion of each engaging claw 49 is formed in a claw shape that becomes sharper toward the inner peripheral side. That is, the upper end portion of each engaging claw 49 protrudes to the inner peripheral side from the insertion hole 47.

  The pulley support portion 41 supports a substantially stepped columnar support pin 46 having a center line (axis) extending in the vehicle height direction. That is, the support pin 46 has a hexagonal columnar fitting portion 46a that can be fitted into the fitting hole 48b, and has a columnar main body portion 46c that is reduced in diameter through an annular second step 46b. The outer diameter of the main body 46c is set to be equal to the inner diameter of the insertion hole 48a, and the length of the main body 46c in the vehicle height direction (axial direction) is the vehicle between the peripheral edge 48c and the lower surface of the support flange 42. It is set equal to the distance in the height direction.

  Further, the support pin 46 has a cylindrical insertion portion 46e that is further reduced in diameter via an annular first step 46d. The outer diameter of the insertion portion 46e is set to be equal to the inner diameter of the insertion hole 47, and the length of the insertion portion 46e in the vehicle height direction (axial direction) is set larger than the plate thickness of the support flange 42. ing. A circumferential groove-like engagement groove 46 f that is recessed toward the inner peripheral side is formed at the upper end portion of the insertion portion 46 e (support pin 46) that protrudes from the insertion hole 47. The engaging grooves 46f can be engaged with the engaging claws 49. In addition, the site | part above the engaging groove 46f of the insertion part 46e forms the taper shape 46g diameter-expanded as it goes below.

Here, a method for assembling the driven pulley 23 and the like to the pulley support portion 41 will be described.
First, the driven pulley 23 is disposed between the support flanges 42 and 43 so as to be concentric with the insertion hole 47 and the like. In this state, the support pin 46 is inserted from the attachment hole 48 toward the insertion hole 47 with the insertion part 46e side at the top. At this time, the first step 46 d of the support pin 46 abuts on the peripheral edge 47 a of the insertion hole 47 on the lower surface of the support flange 42, so that further movement of the support pin 46 with respect to the support flange 42 is restricted. Similarly, when the second step 46b of the support pin 46 abuts on the peripheral edge 48c, the further movement of the support pin 46 with respect to the support flange 43 is restricted. The distance in the vehicle height direction between the support flanges 42 and 43 is based on the length in the vehicle height direction of the main body 46c (the distance in the vehicle height direction between the first and second steps 46d and 46b). It is kept constant.

  The engaging groove 46f of the support pin 46 protrudes upward from the insertion hole 47, and the plurality of engaging claws 49 are engaged. That is, when the insertion portion 46e is inserted through the insertion hole 47, the support pin 46 is elastically deformed so as to open the plurality of engagement claws 49 while being guided by the tapered shape 46g, and reaches the engagement groove 46f. Accordingly, the plurality of engaging claws 49 that are elastically restored are engaged with the engaging grooves 46f. Thereby, the support pin 46 is restricted from moving in the vehicle height direction with respect to the pulley support portion 41.

Further, the fitting portion 46 a of the support pin 46 is fitted into the fitting hole 48 b of the attachment hole 48. Thereby, the support pin 46 is restricted from rotating with respect to the pulley support portion 41.
As described above, the support pin 46 is supported so as not to move in the axial direction and cannot rotate with respect to the pulley support portion 41, and the driven pulley 23 is rotatably supported around the support pin 46 (main body portion 46c). Then, the endless toothed belt 30 is hung on the driven pulley 23 in the above-described manner.

  As shown in FIG. 3, the hexagonal columnar fitting portion 46 a having six plane portions parallel to the axis of the support pin 46 is connected to the endless toothed belt 30 on which one plane portion P <b> 1 is hung on the driven pulley 23. They are arranged so as to face each other and to be orthogonal to the load input direction Df from the endless belt 30. This is because the load from the endless toothed belt 30 is received by being distributed at the plane portion P1 to reduce the surface pressure.

Next, the operation of this embodiment will be described.
As shown in FIG. 2, the support pin 46 that rotatably supports the driven pulley 23 is engaged with the engagement claw 49 in the engagement groove 46f so that the support pin 46 in the axial direction with respect to the pulley support portion 41 (frame portion 22). Movement is restricted and it is prevented from coming off. Further, the support pin 46 is restricted from rotating with respect to the pulley support portion 41 by fitting the fitting portion 46a into the fitting hole 48b. Thus, by avoiding the occurrence of press-fitting load in supporting the support pin 46 by the both support flanges 42 and 43, the creep deformation and cracking of the support flanges 42 and 43 are suppressed.

As described above in detail, according to the present embodiment, the following effects can be obtained.
(1) In this embodiment, by avoiding the occurrence of press-fitting load in supporting the support pins 46 by the both support flanges 42 and 43, it is possible to suppress the occurrence of creep deformation and cracks of the support flanges 42 and 43. . Then, the possibility that the support pin 46 comes off or the support pin 46 rotates along with the rotation of the driven pulley 23 can be reduced.

  (2) In the present embodiment, the flat surface portion P1 of the fitting portion 46a faces the endless toothed belt 30 hung on the driven pulley 23 and is orthogonal to the load input direction Df from the endless toothed belt 30. Are arranged as follows. Therefore, the surface pressure can be reduced by the amount received by the load from the endless toothed belt 30 being dispersed by the plane portion P1, and the load from the endless toothed belt 30 can be suitably supported.

  (3) In this embodiment, when the support pin 46 is inserted upward (one direction in the axial direction) into the insertion hole 47 and the mounting hole 48, the first step 46 d and the second step 46 b are respectively formed in the insertion hole 47. Further insertion is restricted by coming into contact with the peripheral edge portion 47a and the peripheral edge portion 48c of the fitting hole 48b. When the support pin 46 is supported by the pulley support portion 41, the distance between the support flanges 42 and 43 along the axial direction of the support pin 46 is the distance between the first and second steps 46d and 46b along the direction. For example, the operation of the driven pulley 23 disposed between the support flanges 42 and 43 can be further stabilized.

(Second Embodiment)
A second embodiment of the vehicle door opening / closing drive device will be described with reference to FIG. In addition, since 2nd Embodiment is the structure which changed the support pin and its support structure of 1st Embodiment mainly, the detailed description is abbreviate | omitted about the same part.

  As shown in FIG. 5, the support flange 62 as the first support wall portion and the support flange 63 as the second support wall portion of the pulley support portion 61 instead of the pulley support portion 41 are concentric with each other in the vehicle height direction. A circular insertion hole 64 that opens and a hexagonal fitting hole 65 as a fitting recess are formed. The opening area of the insertion hole 64 is set larger than the opening area of the fitting hole 65 so as to include the fitting hole 65.

  In addition, the pulley support portion 61 includes a plurality (four) of engaging claws 66 that protrude upward at an equal angle (90 degrees) from a peripheral portion on the outer peripheral side of the insertion hole 64. The upper end portion of each engagement claw 66 is formed into a claw shape that becomes sharper toward the inner peripheral side.

  The pulley support portion 61 supports a substantially stepped columnar support pin 67 having a center line (axis) extending in the vehicle height direction. That is, the support pin 67 has a hexagonal columnar fitting portion 67a that can be fitted into the fitting hole 65, and has a cylindrical main body portion 67c that is expanded in diameter via an annular second step 67b. The outer diameter of the main body 67c is set to be equal to the inner diameter of the insertion hole 64, and the length of the main body 67c in the vehicle height direction (axial direction) is between the upper surface of the support flange 62 and the upper surface of the support flange 63. It is set equal to the distance in the vehicle height direction.

  The support pin 67 has a columnar head portion 67e that is further expanded in diameter via an annular first step 67d. The outer diameter of the head 67e is set to be equal to the distance between the opposing engaging claws 66, and the length of the head 67e in the vehicle height direction (axial direction) is the vehicle of the engaging claws 66. It is set to be longer than the protruding length in the height direction (axial direction). A circumferential groove-like engagement groove 67f that is recessed toward the inner peripheral side is formed in the head portion 67e (the upper end portion of the support pin 67 protruding from the insertion hole 64). The engagement grooves 67f can be engaged with the plurality of engagement claws 66. In addition, the site | part below the engaging groove 67f of the head 67e forms the taper shape 67g diameter-expanded as it goes upwards.

Here, a method for assembling the driven pulley 23 and the like to the pulley support portion 61 will be described.
First, the driven pulley 23 is arranged between the support flanges 62 and 63 so as to be concentric with the insertion hole 64 and the like. In this state, the support pin 67 is inserted from the insertion hole 64 toward the fitting hole 65 with the fitting portion 67a side as the head. At this time, when the first step 67 d of the support pin 67 abuts on the peripheral edge portion 64 a of the insertion hole 64 on the upper surface of the support flange 62, further movement of the support pin 67 with respect to the support flange 62 is restricted. Similarly, when the second step 67b of the support pin 67 contacts the peripheral edge portion 65a of the fitting hole 65 on the upper surface of the support flange 63, the further movement of the support pin 67 with respect to the support flange 63 is restricted. The distance in the vehicle height direction between the support flanges 62 and 63 is based on the length in the vehicle height direction of the main body 67c (the distance in the vehicle height direction between the first and second steps 67d and 67b). It is kept constant.

  The engaging groove 67f of the support pin 67 protrudes upward from the insertion hole 64, and the plurality of engaging claws 66 are engaged. That is, when the head 67e is installed on the support flange 62, the support pin 67 is elastically deformed so that the plurality of engagement claws 66 are opened while being guided by the taper shape 67g, and reaches the engagement groove 67f. Accordingly, the plurality of engaging claws 66 that are elastically restored are engaged with the engaging grooves 67f. Thereby, the support pin 67 is restricted from moving in the vehicle height direction with respect to the pulley support portion 61.

Further, the fitting portion 67 a of the support pin 67 is fitted into the fitting hole 65. Thereby, the support pin 67 is restricted from rotating with respect to the pulley support portion 61.
As described above, the support pin 67 is supported so as not to move in the axial direction and cannot rotate with respect to the pulley support portion 61, and the driven pulley 23 is rotatably supported around the support pin 67 (main body portion 67c). Then, the endless toothed belt 30 is hung on the driven pulley 23 in the above-described manner.

  The hexagonal columnar fitting portion 67a having six plane portions parallel to the axis of the support pin 67 faces the endless toothed belt 30 on which one plane portion P11 is hung on the driven pulley 23, and has the endless teeth. It is arranged so as to be orthogonal to the load input direction from the belt 30.

As described above in detail, according to the present embodiment, the same effects as the effects (1) to (3) in the first embodiment can be obtained.
In addition, you may change the said embodiment as follows.

In the first embodiment, the first step 46d or the second step 46b of the support pin 67 may be omitted.
In the second embodiment, the first step 67d or the second step 67b of the support pin 67 may be omitted.

In the second embodiment, a non-penetrating fitting recess may be used instead of the fitting hole 65 as long as the fitting portion 67a can be fitted.
In each of the above embodiments, the fitting portions (46a, 67a) of the support pins 46, 67 may have an arbitrary polygonal column shape other than a hexagon. Alternatively, the fitting portions (46a, 67a) of the support pins 46, 67 may have a so-called two-sided width shape in which the outer peripheral portion of the cylinder is cut out in two parallel planes. Further, regardless of the shape, one flat surface portion of the fitting portion faces the endless toothed belt 30 that is hung on the driven pulley 23 and is directed to the load input direction Df from the endless toothed belt 30. More preferably, they are arranged so as to be orthogonal. Needless to say, a fitting hole (fitting recess) is formed in the support flange 43 in accordance with its shape so that the fitting portion can be fitted.

  -In each said embodiment, even if the fitting part (46a, 67a) of the support pins 46 and 67 is arbitrary polygonal column shape or double-sided width | variety, it opposes the endless toothed belt 30 hung on the driven pulley 23. All the flat portions of the fitting portion to be engaged may be arranged so as not to be orthogonal to the load input direction Df from the endless toothed belt 30.

  -In each said embodiment, the fitting part (46a, 67a) of the support pins 46 and 67 may be elliptical column shape, for example. Needless to say, a fitting hole (fitting recess) is formed in the support flange 43 in accordance with its shape so that the fitting portion can be fitted.

  In each of the above embodiments, the number of engaging claws 49 and 66 disposed on the support flanges 42 and 62 is arbitrary. However, when the number of the engaging claws 49 and 66 is plural, it is more preferable that the engaging claws 49 and 66 are disposed at equiangular intervals centering on the insertion holes 47 and 64 (support pins 46 and 67), for example. On the other hand, when the number of the engaging claws 49, 66 is “1”, the engaging claws 49, 66 may extend over a part of the circumferential direction centering on the insertion holes 47, 64 (support pins 46, 67). , It may extend over the entire circumference.

  In each of the above embodiments, the arrangement relationship of the support flanges 42 and 62 and the support flanges 43 and 63 in the vehicle height direction may be reversed. In this case, the support pins 46 and 67 may be disposed with their postures reversed in the vehicle height direction.

In each of the above embodiments, the support structure (support pin or the like) of the idle pulley 24 may be the same support structure as the driven pulley 23.
In each of the above embodiments, the axial direction of the driven pulley 23 or the idle pulley 24 in the vehicle-mounted state may not completely match the vehicle height direction (gravity direction).

  In each of the above embodiments, the driven pulley 23 or the idle pulley 24 may be toothed to mesh with the endless toothed belt 30. Alternatively, the driven pulley 23 or the idle pulley 24 may have a so-called friction wheel shape. In this case, instead of the endless toothed belt 30 as the rope member, for example, a wire, a cable, a toothless belt, or the like may be employed.

  P1, P11 ... plane part, 10 ... vehicle body, 10a ... entrance / exit (opening), 20 ... slide door (vehicle door), 22 ... frame part (support member), 27 ... motor (electric drive source), 27a ... Drive pulley, 23, 29 ... driven pulley (pulley), 24 ... idle pulley (pulley), 28 ... tension pulley (pulley), 30 ... endless belt (rope member), 41, 61 ... pulley support, 42, 62 ... support flange (first support wall), 43, 63 ... support flange (second support wall), 46, 67 ... support pins, 46a, 67a ... fitting parts, 46b, 67b ... second step 46d, 67d ... first step, 46f, 67f ... engaging groove, 47, 64 ... insertion hole, 47a, 48c, 64a, 65a ... peripheral edge, 48b, 65 ... fitting hole (fitting recess), 49, 66 ... engaging claw.

Claims (3)

A plurality of pulleys including a driving pulley driven by an electrical drive source;
A rope member linked to a vehicle door that opens and closes an opening formed in the vehicle body by being hung on the plurality of pulleys,
The vehicle door is configured to open and close the opening by moving the rope member by driving the driving pulley,
A support pin inserted through the pulley and rotatably supporting the pulley about an axis extending in the vehicle height direction;
A support member made of resin,
The support member is
And a first support wall and the second support wall portions are arranged in parallel in the vehicle height direction,
The first support wall is engaged with an engagement groove formed at one end of the support pin protruding from an insertion hole formed in the first support wall, and the axis of the support pin An engaging claw that restricts movement in the direction is formed,
In the second support wall portion, a fitting recess formed at the other end portion of the support pin is fitted to restrict the rotation of the support pin , and
The end portion on the one side of the support pin has a tapered shape that expands toward the engagement groove side at a position farther from the end portion on the other side of the support pin than the engagement groove. The door opening and closing drive device for vehicles. The vehicle door opening / closing drive device according to claim 1,
The fitting portion has at least two plane portions parallel to the axis of the support pin,
One said plane part is the door opening / closing drive device for vehicles arrange | positioned so as to oppose the said rope member hung on the said pulley, and to be orthogonal to the load input direction from this rope member. The vehicle door opening / closing drive device according to claim 2,
The vehicle door opening / closing drive device, wherein the support pin is formed with a first step and a second step that contact with a peripheral portion of the insertion hole and a peripheral portion of the fitting recess in one axial direction.