TWI725101B - A driving apparatus for a car window opening/closing body - Google Patents

Abstract

A driving apparatus for a window opening/closing body (a window glass) includes a drum housing and a driving member. The drum housing is configured to rotatably support a drum in a containing portion of the drum housing, is configured to insert an end portion of an outer tube into an outer-tube connecting portion, and is configured to allow a wire to pass through a wire-passing portion provided between the outer-tube connecting portion and the containing portion of the drum housing. The driving member, which is provided in the drum housing, is configure to rotate the drum. A wire-motion limiter is provided to limit the motion of a wire in the rotational axis direction of the drum; the wire-motion limiter is formed in the drum housing or the driving member.

The wire-motion limiter is formed, in the rotational axis direction of the drum, in an inner side of area defined by the following hypothetical lines: a hypothetical line connecting an end of a spiral-groove forming area and an end of an inserting-hole forming area at the end of the outer tube connected to the outer-tube connecting portion; and another hypothetical line connecting the other end of the spiral-groove forming area and the other end of the inserting-hole forming area at the end of the outer tube connected to the outer-tube connecting portion.

A driving apparatus for a window opening/closing body (a window glass) with these structures, can attain high productivity, low production costs and enhanced durability of a wire.

Description

Driving device of opening and closing body for vehicle

The present invention relates to a driving device for an opening and closing body mounted on a vehicle.

The driving device of the automobile opening and closing body, such as the window regulator that raises and lowers the window glass, and the door opening and closing device that opens and closes the slide door, are mostly used by winding steel wire (the abstract, manual and In the scope of the patent application, "steel wire" is the abbreviation of metal wire (wire), and is not limited to steel wire). The rotation of the winding drum causes the wire to move (traction, relaxation) to drive the opening and closing body (window glass and sliding). The structure of the door). A spiral groove for winding the steel wire is formed on the outer peripheral surface of the winding drum. In the drum frame containing the winding drum, the end of the cylindrical outer tube is connected. The steel wire extending from the spiral groove of the winding drum passes through the passage in the drum frame and can be inserted into the outer tube in advance and retreat. Insert through hole.

When this kind of driving device rotates the winding drum, the steel wire will vibrate in the direction of the rotation axis of the winding drum with the inclination of the spiral groove. At this time, if the vibration amount (vibration angle) of the steel wire is large, the steel wire will interfere with the edge of the insertion hole at the end surface of the outer tube, and the steel wire may be damaged by repeated driving. As a countermeasure, there is a conventionally-known structure in which a sleeve member into which the end of the outer tube can be inserted is provided outside the drum frame, and the inner diameter of the sleeve member gradually changes as it moves away from the end of the outer tube. The outer tube is connected to the drum frame via a sleeve member with a large vibration-proof hole (Patent Document 1). When the winding drum rotates, the inner surface of the anti-vibration hole limits the vibration angle of the steel wire to protect the steel wire.

【Prior Technical Literature】 【Patent Literature】

[Patent Document 1] Japanese Patent Application Laid-Open No. 9-144424

Because the anti-vibration structure of the steel wire in Patent Document 1 requires the installation of a sleeve member in addition to the drum frame, it may cause a lot of work and manufacturing troubles in combination compared with the structure where the drum frame and the outer tube are directly connected. The increase in the number of parts increases the cost.

In view of the above problems, the present invention aims to provide a driving device for a vehicle opening and closing body that can achieve high productivity, low cost, and improved steel wire durability.

The driving device of the opening and closing body for a vehicle of the present invention is provided with: an outer tube having an insertion hole through which a steel wire is inserted; a cylindrical drum wheel that winds the steel wire in a spiral groove formed on the peripheral surface; and a drum machine The frame, the receiving part rotatably supports the drum, so that the end of the outer tube is inserted into the connecting part of the outer tube, and the steel wire is passed through the steel wire passing part between the connecting part of the outer tube and the receiving part; and the driving part is installed Rotate the drum on the drum frame; and open and close the opening and closing body by the drive of the steel wire, and have the following characteristics. An anti-vibration part that restricts the vibration of the steel wire in the direction of the rotation axis of the drum is formed in the drum frame or the driving part. The anti-vibration part is arranged on the inner side of the area surrounded by a connecting line and the other connecting line in the direction of the rotation axis of the drum, and the connecting line connects one end of the formation range of the spiral groove with the outer tube connecting part The line of one end of the formation range of the insertion hole on the end of the outer tube, and the other connecting line connects the other end of the formation range of the spiral groove with the insert connected to the end of the outer tube of the outer tube connection part The line at the other end of the through-hole formation range.

It is advisable to install in the drum frame and drive components: the first vibration-proof part (the first vibration-proof part), which restricts the steel wire from vibrating in the first direction along the drum rotation axis; and the second vibration-proof part (Second vibration-proof part), which restricts the steel wire from vibrating in a second direction opposite to the first direction.

At this time, it is advisable to provide a first vibration-proof part in the steel-wire-passing groove after the steel-wire passage part is used as a steel-wire passage groove that forms an opening in the first direction, and form between the side surface of the steel-wire passage groove and the first vibration-proof part. The gap for inserting and detaching the steel wire passing through the opening. The gap is preferably formed by enlarging the opening width of the steel wire passage groove at the portion where the first vibration-proof portion is provided.

In addition, it is advisable to form the drum frame with the wire passing portion as a wire passing groove that forms an opening in the first direction, and the accommodating portion also forms an opening in the first direction, and then make the first vibration-proof portion in the longitudinal direction of the wire passing groove. The position of the second vibration-proof part is different from that, and a through hole is formed in the bottom of the wire passing groove in the second direction opposite to the opening at least at a position corresponding to the first vibration-proof part. The drum frame constructed in this way is of a type that relatively moves in the first direction and the second direction (the direction of the rotation axis of the drum), so it can be easily manufactured.

When the driving device of the opening and closing body for a vehicle of the present invention is used, the vibration of the steel wire in the direction of the drum rotation axis is restricted by the vibration-proof part provided in the drum frame containing the drum or the driving member of the driving drum. With a small number of parts, low cost, and excellent productivity, the durability of the steel wire can be reliably improved.

10‧‧‧Window Lifter

11‧‧‧Guide

12, 13‧‧‧ Bracket

14‧‧‧Slide

15,16‧‧‧wire

17‧‧‧Guide pulley

18‧‧‧Wire parts

19‧‧‧Pulley support shaft

20‧‧‧Drum rack

21, 22‧‧‧Outer tube

21a, 22a‧‧‧ rail side end

21b, 22b‧‧‧Drum side end

23‧‧‧Rewinding drum

23x‧‧‧Rotation axis

24‧‧‧Shaft fitting hole

24a‧‧‧Cylinder surface

25‧‧‧Spiral groove

26‧‧‧Motor unit (drive part)

27‧‧‧Motor

28‧‧‧Gear box

29‧‧‧Cover

30‧‧‧Pulley bracket

31‧‧‧Drum Wheel Containment Department (Containment Department)

32、33‧‧‧Outer tube insertion part

32x, 33x: Insert axis

34: bottom

35: Upright Wall

36: Containment section opening

37: Drum support seat

37a: Shaft protrusion

40, 41: Steel wire passing groove (wire passing part)

42: bottom

43: side wall

44: side wall

45: through the ditch opening

45a: gap

46: Penetration groove

47: Insert the control surface

50: Through hole

51: The first anti-vibration part (the first anti-vibration part)

51a: Conical surface

52: The second anti-vibration part (the second anti-vibration part)

53: Through hole

D1: One end of the formation range of the spiral groove

D2: The other end of the spiral groove formation range

E1: One end of the formation range of the outer tube insertion hole

E2: The other end of the formation range of the outer tube insertion hole

F1, F2: Hypothetical line that determines the possible vibration range

H: Formation range of spiral groove

M: Possible vibration range

The first figure is a front view of a window lifter to which the present invention is applied.

The second picture is the rear view of the window lifter.

The third figure is a side view of the window lifter.

The fourth figure is a three-dimensional view of the drum rack in the state of accommodating the retracted drum.

The fifth figure is a perspective view of the drum frame in a state where the winding drum is not housed, viewed from a different angle from the fourth figure.

The sixth figure is a top view of the drum frame in the state of accommodating the winding drum.

The seventh picture is a three-dimensional view of the winding drum.

The eighth figure is a side view of the winding drum viewed from the direction perpendicular to the axis of rotation.

The ninth figure is a cross-sectional view of the drum frame along the line IX-IX in the sixth figure.

Hereinafter, an embodiment in which the driving device of the opening and closing body for a vehicle of the present invention is applied to a window lifter that drives a window glass (opening and closing body) that opens and closes the opening of a door window will be described. The window lifter 10 shown in the first to third figures is a person who lifts and lowers a window glass (not shown) installed in a door panel (not shown) of a vehicle. In the third figure, arrows show the directions of the outside and inside of the vehicle when the window lifter 10 is installed on the door of the vehicle. The window lifter 10 has a long member that is a guide rail 11, and the guide rail 11 is fixed to a door panel (inner panel) via brackets 12 and 13 provided at different positions in the longitudinal direction. In this fixed state, the guide rail 11 is arranged so that the longitudinal direction thereof is roughly directed in the height direction of the vehicle.

The sliding seat 14 (glass carrier: glass carrier) supporting the window glass is supported so as to be movable along the length direction of the guide rail 11. The sliding seat 14 is connected to one end of each of a pair of steel wires 15, 16 (the second figure). A pulley bracket 30 is fixed near one end of the guide rail 11 in the longitudinal direction, and a guide pulley 17 is rotatably supported on the pulley bracket 30 via a pulley support shaft 19. The steel wire 15 extends from the sliding seat 14 along the guide rail 11 in the direction of one end of the guide rail 11 and is supported by a wire guide groove formed on the outer peripheral surface of the guide pulley 17. The guide pulley 17 rotates around the pulley support shaft 19 according to the advance and retreat of the steel wire 15. A wire guide member 18 is provided near the other end of the guide rail 11 in the longitudinal direction. The wire 16 extends from the carriage 14 along the guide rail 11 toward the other end of the guide rail 11 and is guided by the wire guide member 18. The wire member 18 is fixed to the guide rail 11 and supports the steel wire 16 along the wire groove formed in the wire member 18 so as to advance and retreat.

The steel wires 15, 16 from the guide pulley 17 and the wire member 18 are inserted into the tubular outer tubes 21, 22, and are wound around the winding drum 23 provided in the drum frame 20 connecting the outer tubes 21, 22 on. As shown in the seventh and eighth figures, the winding drum 23 has a cylindrical shape, and a shaft fitting hole 24 penetrating in the axial direction is formed in the center portion thereof. Serrations in the shape of serrations are formed on the inner surface of the shaft fitting hole 24. A spiral groove 25 for winding the steel wires 15 and 16 is formed on the outer peripheral surface of the winding drum 23. The spiral groove 25 revolves along the outer peripheral surface of the winding drum 23 and changes its position in the axial direction of the winding drum 23. The formation range H of the spiral groove 25 in the axial direction of the winding drum 23 is shown in the eighth figure.

A motor unit (driving part) 26 is attached to the drum frame 20 (Figures 1 to 3). The motor unit 26 is provided with a motor 27; a gear box 28 containing a reduction gear train that decelerates and transmits the rotation of the output shaft of the motor 27; and a fitting shaft that transmits the rotational driving force of the motor 27 through the reduction gear train of the gear box 28 (Illustration omitted). The motor unit 26 has a cover part 29 which covers the opening part of the drum frame 20 mentioned later, and the fitting shaft protrudes from the cover part 29, and is fitted in the shaft fitting hole 24 of the winding drum 23. As shown in FIG. The fitting shaft is formed with serrations to be fitted with the serrations of the shaft fitting hole 24. When the motor 27 is driven in this fitted state, the winding drum 23 rotates together with the fitting shaft.

One end of the outer tube 21 is connected to the pulley bracket 30, and the other end is connected to the drum frame 20. The steel wire 15 can be fixed in the outer tube 21 at both ends to advance and retreat. One end of the outer tube 22 is connected to the wire member 18, and the other end is connected to the drum frame 20. The steel wire 16 can be fixed at both ends of the outer tube 22 to advance and retreat. The outer pipes 21 and 22 are formed with insertion holes 50 (in the ninth figure) penetrating in the longitudinal direction, and the steel wires 15 and 16 are inserted into the insertion holes 50. The end of the outer tube 21 connected to the side of the pulley bracket 30 is referred to as a rail-side end 21a, and the end of the outer tube 22 connected to the side of the wire member 18 is referred to as a rail-side end 22a. In addition, the end portions of the outer pipes 21 and 22 connected to the drum frame 20 side are respectively referred to as drum-side end portions 21b and 22b.

The drum frame 20 is fixed to the door panel (inner panel). When the winding drum 23 is rotated forward and backward by the driving force of the motor 27, one of the steel wires 15, 16 increases the winding amount to the spiral groove 25 of the winding drum 23, and the other is from the spiral groove 25 of the winding drum 23 The groove 25 is sent out, and the sliding seat 14 moves along the guide rail 11 by the relationship between the pulling and slack of the pair of steel wires 15 and 16. The window glass is raised and lowered according to the movement of the sliding seat 14.

The drum frame 20 to which the outer tubes 21 and 22 are connected will be described below. As shown in the fourth to sixth figures, the drum frame 20 has a drum accommodating part (accommodating part) 31 and a pair of outer tube insertion parts 32 and 33. The drum accommodating portion 31 forms a space surrounded by a bottom portion 34 and a cylindrical upright wall 35 formed on the periphery thereof, and the opening on the opposite side of the bottom portion 34 serves as the accommodating portion opening 36. A drum support seat 37 is provided on the bottom 34 (Figure 5). The winding drum 23 has one end mounted on the drum supporting seat 37 and inserted into the drum accommodating portion 31. A cylindrical shaft protrusion 37a (Figure 5) is provided in the drum support base 37, and a smooth cylindrical surface 24a is formed in a portion of the shaft fitting hole 24 in the winding drum 23 (Figure 7). The shaft protrusion 37a is inserted into the cylindrical surface 24a, and the cylindrical surface 24a is brought into sliding contact with the shaft protrusion 37a, thereby supporting the winding drum 23 rotatably. In the storage state of the drum accommodating portion 31, the rotation center of the retracting drum 23 ─ ─ the rotation axis 23x is shown in the fifth and sixth diagrams with a one-point chain line. When transmitting the driving force of the motor 27, the winding drum 23 rotates around the rotation axis 23x.

In the drum frame 20, steel wires connected to the drum accommodating portion 31 are formed facing different directions (the direction of the lower pulley bracket 30 and the wire member 18 in the completed state of the window lifter 10) Through the groove 40 (wire passing portion) and the wire passing groove 41 (wire passing portion), an outer tube insertion portion 32 is provided at the front end of the wire passing groove 40, and an outer tube insertion portion 33 is provided at the front end of the wire passing groove 41.

The wire passing groove 40 and the wire passing groove 41 have roughly the same structure, and the elements common to the wire passing groove 40 and the wire passing groove 41 are indicated by the same symbols in the figure. The wire passage grooves 40 and 41 are respectively groove-shaped parts protruding from the drum receiving portion 31 in a direction crossing (roughly orthogonal) to the rotation axis 23x, and have a bottom 42 continuous with the bottom 34 of the drum receiving portion 31; And a pair of side walls 43, 44 that rise from the bottom 42 in the direction of the rotation axis 23x (the direction in which the upright wall 35 protrudes). A passage groove opening 45 is formed in a portion of the top surface opposite to the bottom portion 42. The passage opening 45 is an opening continuous with the receiving portion opening 36 of the drum receiving portion 31.

The drum-side end 21b of the outer tube 21 can be inserted into the outer tube insertion portion 32, and the drum-side end 22b of the outer tube 22 can be inserted into the outer tube insertion portion 33. The insertion direction of the drum-side end 21b to the outer tube insertion portion 32—the insertion axis 32x, and the insertion direction of the drum-side end 22b to the outer tube insertion portion 33—the insertion axis 33x are shown in the sixth figure.

The outer tube insertion portion 32 and the outer tube insertion portion 33 have roughly the same structure, and the components common to the outer tube insertion portion 32 and the outer tube insertion portion 33 are denoted by the same reference numerals in the drawings. An insertion groove 46 penetrating in the direction of the insertion axis 32x, 33x is formed inside the outer tube insertion portions 32, 33. The penetration groove 46 communicates with the wire passing grooves 40 and 41, and a stepped insertion regulating surface 47 is formed in the vicinity of the boundary between the wire passing grooves 40 and 41 and the penetration groove 46. The end surfaces of the drum-side ends 21b and 22b of the outer tubes 21 and 22 respectively abut on the insertion control surface 47 to determine the insertion positions of the outer tubes 21 and 22 into the outer tube insertion parts 32 and 33. (Refer to Figure 9). The steel wire is continuously formed to the outer tube insertion portions 32 and 33 through the groove opening 45 of the grooves 40 and 41. The width of the passage groove opening 45 in the outer tube insertion portions 32, 33 is smaller than the diameter of the outer tubes 21, 22 to prevent the drum-side ends 21b, 22b of the outer tubes 21, 22 from passing through the outer tube insertion portions 32, 33 It falls off through the groove opening 45.

When the window lifter 10 is combined, the steel wires 15, 16 protruding from the end faces of the drum-side ends 21b, 22b of the outer tubes 21, 22 are inserted into the insertion grooves 46 of the outer tube insertion portions 32, 33 through the groove opening 45 The steel wire passes through the grooves 40 and 41, and the drum-side end portions 21b, 22b are inserted into the insertion grooves 46 of the outer tube insertion portions 32, 33 along the insertion axis 32x, 33x. The end surfaces of the drum-side ends 21b, 22b abut on the insertion regulating surface 47, and determine the positions of the outer tubes 21, 22 in the insertion axis 32x, 33x directions. The steel wires 15 and 16 are guided into the drum accommodating portion 31 through the steel wire passage grooves 40 and 41 and are wound in the spiral groove 25 on the outer peripheral surface of the winding drum 23. In this installation state (Figures 1 to 3 and 9), the outer tubes 21, 22 of the steel wires 15, 16 can advance and retreat in the insertion hole 50 (the ninth figure), and the wires 15, 16 are paired with the spiral groove 25. The winding amount changes according to the rotation of the winding drum 23.

Further, a motor unit 26 is installed on the top surface side of the drum frame 20. The protective cover 29 of the motor unit 26 blocks the receiving portion opening 36 of the drum frame 20 and the passage opening 45 to prevent the winding drum 23 from falling off the drum receiving portion 31. By installing the motor unit 26, the fitting shaft (not shown) on the side of the motor unit 26 is fitted into the shaft fitting hole 24 as described above, so that the driving force of the motor 27 can be transmitted to the winding drum 23.

As in the window lifter 10 with the paths of the wires 15 and 16 arranged above, when the winding drum 23 rotates, the conveying positions of the wires 15 and 16 from the spiral groove 25 change in the direction along the rotation axis 23x. The drum frame 20 is provided with a first vibration isolation portion (vibration isolation portion, first vibration isolation portion) 51 and a second vibration isolation portion (vibration isolation portion, second vibration isolation portion) in the wire passage groove 40 and the wire passage groove 41, respectively The vibration part) 52 serves as a vibration-proof means for restricting the vibration of the steel wires 15 and 16 in the direction along the rotation axis 23x.

The ninth figure shows one end D1 and the other end D2 of the formation range H of the spiral groove 25 of the winding drum 23 in the direction of the rotation axis 23x (the eighth figure); the insertion hole of the drum side end 22b of the outer tube 22 50 is formed at one end E1 and the other end E2 of the range. Let the hypothetical line connecting one end D1 on the side of the spiral groove 25 and one end E1 on the side of the insertion hole 50 be F1, and set the hypothesis line connecting the other end D2 on the side of the spiral groove 25 and the other end E2 on the side of the insertion hole 50 as F2. As shown in the ninth figure, in the drum frame 20, the steel wire 16 is supported by the winding drum 23 (spiral groove 25) and the drum side end 22b (the insertion hole 50) of the outer tube 22, and the steel wire The passage groove 41 is not supported by the winding drum 23 and the outer tube 22. Therefore, in the absence of anti-vibration means, the steel wire 16 may vibrate in the range enclosed by the hypothetical line F1 and the hypothetical line F2 (set as the possible vibration range M). The ninth figure shows the relationship between the steel wire 16 and the steel wire passing groove 41, but the same relationship exists between the steel wire 15 and the steel wire passing groove 40.

The first vibration-proof portion 51 is provided on the protruding portion of the side wall 43, and is provided at a position inside the possible vibration range M from the hypothetical line F1 in the direction along the rotation axis 23x (refer to the ninth figure). In addition, as shown in the sixth figure, when viewed along the rotation axis 23x, the first vibration-proof portion 51 of the steel wire passing groove 40 is at a position overlapping with the insertion axis 32x, and the first vibration-proof portion 51 of the steel wire passing groove 41 is at a position overlapping with the insertion axis 32x. A position overlapping with the insertion axis 33x. Therefore, the wires 15 arranged in the wire passage groove 40 along the insertion axis 32x and the wires 16 arranged in the wire passage groove 41 along the insertion axis 33x are restricted along the rotation axis by the first vibration-proof portion 51. 23x the amount of vibration on one side. Specifically, the amount of vibration is limited in a range narrower than the hypothetical line F1 of the possible vibration range M (a position deviated from the hypothetical line F2).

The second anti-vibration part 52 is provided on the protruding part of the bottom part 42 and is provided at a position inside the possible vibration range M from the hypothetical line F2 in the direction along the rotation axis 23x (refer to the ninth figure). Therefore, both the wire 15 arranged in the wire passage groove 40 and the wire 16 arranged in the wire passage groove 41 are restricted by the second vibration-proof portion 52 along the other vibration amount along the rotation axis 23x. Specifically, the amount of vibration is restricted in a range narrower than the hypothetical line F2 of the possible vibration range M (a position deviated from the hypothetical line F1).

In this way, the first vibration-proof portion 51 and the second vibration-proof portion 52 restrict the amount of vibration (vibration angle) of the steel wires 15 and 16 in the direction of the rotation axis 23x, so that the durability of the steel wires 15 and 16 can be improved. In particular, the insertion part of the pipe 21, 22 (drum-side end 21b, 22b) into the insertion hole 50 outside the narrowest possible vibration range M can effectively prevent the wire 15, 16 from rubbing against the edge of the insertion hole 50 . Since the vibration restriction of the steel wires 15 and 16 is realized by the first vibration-proof part 51 and the second vibration-proof part 52 formed on the drum frame 20, there is no need to additionally have vibration-proof parts or mechanisms, and the structure is simplified, and Available at low cost.

The first anti-vibration part 51 and the second anti-vibration part 52 are arranged on the drum closer to the outer tube 21, 22 than the winding drum 23 in the longitudinal direction of the wire passing grooves 40, 41 (the extending direction of the wires 15, 16) The position of the wheel-side ends 21b, 22b. This arrangement is located near the edge of the insertion hole 50 of the outer tube 21, 22 that is prone to friction between the steel wires 15, 16 and has the advantage of being able to manage the vibration amplitude of the steel wires 15, 16.

The housing opening 36 and the drum frame 20 that open in the direction along the rotation axis 23x through the groove opening 45 are preferably manufactured by two metal molds that move relative to each other in the direction along the rotation axis 23x. Here, the positions of the first anti-vibration portion 51 and the second anti-vibration portion 52 in the longitudinal direction of the steel wire passing grooves 40 and 41 are different from each other. Further, a through hole 53 is formed at a position opposite to the first vibration-proof portion 51 where the steel wire passes through the bottom 42 of the grooves 40 and 41 and along the direction of the rotation axis 23x. With this configuration, the first vibration-proof portion 51 and the second vibration-proof portion 52 can also be formed by two metal molds that move relatively along the direction of the rotation axis 23x. Therefore, the productivity of the drum frame 20 is improved. .

As shown in the sixth figure, the width of the opening 45 of the steel wire passing grooves 40, 41 is enlarged at the portion where the first vibration-proof portion 51 is formed, and a gap 45a is formed between the first vibration-proof portion 51 and the side wall 44 ( Sixth picture). Therefore, the steel wires 15 and 16 can be inserted into the steel wire passage grooves 40 and 41 through the gap 45a without being hindered by the first vibration-proof portion 51. As shown in the fourth and fifth figures, the first anti-vibration portion 51 has a tapered surface 51a in an oblique direction, and the tapered surface 51a facilitates guiding the steel wires 15, 16 to the side of the gap 45a.

As mentioned above, the present invention has been described based on the illustrated embodiment, but the present invention is not limited to the illustrated embodiment, and improvements and changes can be made without departing from the gist of the invention. For example, in the embodiment shown in the figure, both the first anti-vibration part 51 and the second anti-vibration part 52 are provided on the drum frame 20, but at least one anti-dropping part may be provided in the motor unit 26 installed on the drum frame 20. element. Specifically, since the cover portion 29 of the motor unit 26 has a shape that blocks the passage groove opening 45 (which constitutes a part of the wire passage grooves 40 and 41), it can be changed to a vibration-proof portion corresponding to the first vibration-proof portion 51 It is provided on the cover 29 instead of the drum frame 20.

In the illustrated embodiment, the first vibration-proof portion 51 is protrudingly provided on the side wall 43 of the wire passing grooves 40 and 41, but the first vibration-proof portion 51 may be provided on the side wall 44 on the opposite side.

In the drum frame 20 of the illustrated embodiment, the accommodating portion opening 36 of the drum accommodating portion 31 is opened in the same direction as the passing groove openings 45 of the wire passing grooves 40 and 41, but it is also applicable to the accommodating portion opening 36 and the passage A type of drum frame in which the groove openings 45 are opened opposite to each other in the direction along the rotation axis 23x.

The illustrated embodiment is provided with: a first vibration-proof portion 51 that restricts the vibration of the steel wires 15 and 16 toward the first direction (the direction of the opening through the groove opening 45) in the direction along the rotation axis 23x of the winding drum 23; and The second vibration-proof portion 52 restricts the vibration of the steel wires 15 and 16 in the opposite second direction (the direction in which the steel wires pass through the bottom 42 of the grooves 40 and 41). The advantage of this configuration is that when the winding drum 23 rotates, no matter which direction the steel wires 15, 16 vibrate, it can be protected. However, even if the vibration of the wires 15, 16 is restricted only in one of the directions along the rotation axis 23x Constitution, the present invention still holds.

In addition, in the illustrated embodiment, because the wire passing groove 40 and the wire passing groove 41 in the drum frame 20 have roughly the same structure, and the conditions are that each wire 15 and 16 can generate vibrations of the same magnitude, the wire passing groove 40 and Both the steel wire passage groove 41 are provided with the first anti-vibration part 51 and the second anti-vibration part 52 of the same structure. However, when the condition of the vibration amount of the steel wire 15 and the steel wire 16 (the possible vibration range M width in the ninth figure), etc. At different times, the specifications (shape, arrangement) of the vibration-proof part provided in the wire passage groove 40 and the vibration-proof part provided in the wire passage groove 41 may be different.

(Industrial availability)

As described in detail above, in the present invention, the drum frame or the driving member constituting the driving device of the vehicle opening and closing body is provided with a vibration-proof part that restricts the vibration of the wire in the direction of the drum rotation axis. The steel wire is wound in the drum spiral groove rotatably supported in the receiving part of the drum frame, and is inserted into the outer tube insertion hole of the outer tube connecting part of the end connected to the drum frame. The anti-vibration part is arranged on the inner side of the area surrounded by a connecting line and the other connecting line in the direction of the rotation axis of the drum. The connecting line connects one end of the spiral groove of the drum and the end of the outer tube. The line at one end of the through-hole forming range, the other connecting line is a line connecting the other end of the drum spiral groove formation range with the other end of the through-hole forming range at the end of the outer tube, the anti-vibration part preventing wire Rubbing at the end of the outer tube, etc. Therefore, with a small number of parts, low cost, and excellent productivity, the durability of the steel wire can be improved, which contributes to the improvement of the quality of the driving device of the vehicle opening and closing body.

16‧‧‧Wire

20‧‧‧Drum rack

22‧‧‧Outer tube

22b‧‧‧Drum side end

23‧‧‧Rewinding drum

25‧‧‧Spiral groove

31‧‧‧Drum Wheel Containment Department (Containment Department)

33‧‧‧Outer tube insertion part

34‧‧‧Bottom

36‧‧‧Containment Department Opening

41‧‧‧Wire passage groove (wire passage part)

42‧‧‧Bottom

47‧‧‧Insert the control surface

50‧‧‧through hole

51‧‧‧The first anti-vibration part (the first anti-vibration part)

52‧‧‧Second vibration-proof part (vibration-proof part, second vibration-proof part)

53‧‧‧through hole

D1‧‧‧One end of the forming range of the spiral groove

D2‧‧‧The other end of the spiral groove formation range

E1‧‧‧One end of the forming range of the outer tube insertion hole

E2‧‧‧The other end of the forming range of the outer tube insertion hole

F1, F2‧‧‧The hypothetical line that determines the possible vibration range

M‧‧‧ Possible vibration range

Claims (3)

A driving device for an opening and closing body for a vehicle, which opens and closes the opening and closing body by driving a steel wire, and is characterized by being provided with: an outer tube having an insertion hole for inserting the steel wire; and a cylindrical drum wheel which is attached to the circumference A spiral groove is formed on the surface, and the steel wire is wound in the spiral groove; the drum frame is provided with: a receiving portion for rotatably supporting the drum; an outer tube connecting portion into which the end of the outer tube can be inserted; And a wire passing portion that allows the steel wire to pass between the outer tube connecting portion and the receiving portion; a drive member that is installed on the drum frame to rotate the drum; and a first vibration-proof portion and a second anti-vibration portion The vibration part is provided in the drum frame or the drive member, the first vibration part restricts the steel wire from vibrating in a first direction along the direction of the rotation axis of the drum, and the second vibration part restricts the steel wire from vibrating in a first direction. Vibrate in a second direction opposite to the first direction, and the first vibration-proof portion and the second vibration-proof portion are provided in the direction of the rotation axis on the inner side of an area surrounded by one connecting line and the other connecting line. A connecting line connects one end of the formation range of the spiral groove with one end of the formation range of the insertion hole on the end of the outer tube connected to the outer tube connecting portion, and the other connecting line connects the above The line between the other end of the formation range of the spiral groove and the other end of the formation range of the insertion hole on the end of the outer tube connected to the outer tube connecting portion, and the wire passing portion forms an opening in the first direction The steel wire passes through the groove, and the first vibration-proof part is provided in the above-mentioned steel wire pass groove, A gap is formed between the side surface of the wire passing groove and the first vibration-proof portion to allow the wire passing through the opening to be inserted and removed. For example, the driving device of the opening and closing body for a vehicle according to the first patent application, wherein the steel wire passes a groove to expand the width of the opening at the portion where the first vibration-proof portion is provided to form the gap. A driving device for an opening and closing body for a vehicle, which opens and closes the opening and closing body by driving a steel wire, and is characterized by being provided with: an outer tube having an insertion hole for inserting the steel wire; and a cylindrical drum wheel which is attached to the circumference A spiral groove is formed on the surface, and the steel wire is wound in the spiral groove; a drum frame, which has: a receiving portion for rotatably supporting the drum; an outer tube connecting portion into which the end of the outer tube can be inserted; And a wire passing portion that allows the steel wire to pass between the outer tube connecting portion and the receiving portion; a drive member that is installed on the drum frame to rotate the drum; and a first vibration-proof portion and a second anti-vibration portion The vibration part is provided in the drum frame or the drive member, the first vibration part restricts the steel wire from vibrating in a first direction along the direction of the rotation axis of the drum, and the second vibration part restricts the steel wire from vibrating in a first direction. Vibrate in a second direction opposite to the first direction, and the first vibration-proof portion and the second vibration-proof portion are provided in the direction of the rotation axis on the inner side of an area surrounded by one connecting line and the other connecting line. A connecting line connects one end of the formation range of the spiral groove with one end of the formation range of the insertion hole on the end of the outer tube connected to the outer tube connecting portion, and the other connecting line connects the above The other end of the spiral groove formation range and the end of the outer tube connected to the outer tube connecting part The line at the other end of the formation range of the insertion hole, wherein the wire passing portion is a wire passing groove that opens in the first direction, and the receiving portion is opened in the first direction, in the longitudinal direction of the wire passing groove The position of the first vibration-proof portion and the second vibration-proof portion are different from each other, and the wire passing groove has a through hole at least at a position corresponding to the first vibration-proof portion in the bottom of the second direction opposite to the opening .

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