JP5965419B2 - Window regulator - Google Patents

Description

  The present invention relates to a window regulator for raising and lowering a window glass of a vehicle door.

  Conventionally, a window regulator that lifts and lowers a window glass by a driving force of a motor has been used for a vehicle door. This type of window regulator includes a self-propelled window regulator in which a motor moves with a window glass (see, for example, Patent Document 1).

  The window regulator described in Patent Literature 1 includes a fixed portion that is fixed to a vehicle door so as to extend along the moving direction of the window glass, and a drive unit that drives the window glass. A drive part has a motor as a drive source, and moves with a window glass. The fixed part extends in the height direction of the door and guides the movement of the drive part.

  More specifically, the fixed portion has a rack bracket fixed to the door and a rack fixed to the rack bracket. The drive unit includes a pinion gear that is rotationally driven by a motor, and a housing that supports the pinion gear and the motor. The pinion gear is formed with pinion teeth that mesh with the rack teeth formed on the rack, and when the rack teeth and the pinion teeth mesh with each other, the pinion gear rotates to drive the drive unit along with the window glass in the longitudinal direction of the rack bracket. Move along (vertical direction).

  The rack teeth of the rack are formed so as to protrude toward the rear of the door, and the pinion gear is disposed behind the door rather than the rack. The motor is arranged further behind the door than the pinion gear, and is arranged side by side in the front-rear direction of the rack and the rack bracket. Moreover, the motor is arrange | positioned below the window glass.

JP 2006-257764 A

  In the window regulator described in Patent Document 1, since the motor moves in the vertical direction together with the window glass, noise generated from the motor is easily heard by the occupant as the window glass rises. That is, as the window glass rises, the noise that reaches the passenger's ear increases, which gives the passenger discomfort. In particular, in recent vehicles, noise accompanying traveling such as engine noise of a vehicle reaching the passenger compartment and road noise generated between a tire and a road surface is reduced, and quietness is improved. The motor noise of the window regulator is easily perceived by the occupant, and a high degree of quietness is required for the window regulator.

  Then, an object of this invention is to provide the self-propelled window regulator which can improve a silence.

  In order to solve the above-mentioned problem, the present invention is a window regulator that is provided on a door of a vehicle and moves up and down the window glass of the door, the guide rail being arranged along the moving direction of the window glass, and the guide A wire stretched along the longitudinal direction of the rail, and a moving body that is guided by the guide rail and moves together with the window glass, and the moving body includes a drum around which a part of the wire is wound, And a motor for generating a driving force for rotationally driving the drum, and a housing for holding the drum and the motor. The motor is disposed outside the window glass in the vehicle width direction of the vehicle. Provide a window regulator.

  According to the present invention, it is possible to improve the quietness in a self-propelled window regulator.

It is the schematic which shows the window regulator which concerns on embodiment of this invention, and the door of the vehicle in which this window regulator is provided. It is the schematic which shows the inside of the door in which the window regulator is arrange | positioned in the AA sectional view of FIG. It is a general view which shows a window regulator. It is a disassembled perspective view of a window regulator. It is the BB sectional view taken on the line of FIG. It is CC sectional view taken on the line of FIG. The yoke of a motor is shown, (a) is a top view, (b) is a front view, (c) is a bottom view, (d) is the EE sectional view taken on the line (a). It is the DD sectional view taken on the line of FIG.

[Embodiment]
Embodiments of the present invention will be described with reference to FIGS.

  FIG. 1 is a schematic view showing a window regulator according to an embodiment and a vehicle door provided with the window regulator. FIG. 1 illustrates the right rear seat door as viewed from the outside of the vehicle. Moreover, in FIG. 1, the outline and window frame of a door are shown with a virtual line (two-dot chain line), and the part arrange | positioned inside the window glass of a window regulator (vehicle compartment side) is shown with the broken line.

  The window regulator 1 is provided on the door 9 of the vehicle and raises and lowers the window glass 90 of the door 9. The window glass 90 is guided by a glass guide (not shown) and moves up and down. In FIG. 1, as an example, the case where the window regulator 1 is used for the right rear seat door of the vehicle is illustrated, but the window regulator 1 may be provided at another door in the vehicle.

  The window regulator 1 includes a guide rail 20 disposed along the moving direction of the window glass 90, a wire 3 stretched along the longitudinal direction of the guide rail 20, and the window glass 90 guided by the guide rail 20. And a moving body 4 that moves. The moving body 4 holds a drum 40 around which a part of the wire 3 is wound (shown in FIG. 4 described later), a motor 5 that generates a driving force for rotationally driving the drum 40, and the drum 40 and the motor 5. The housing 6 includes coupling members 71 and 72 that couple the window glass 90 to the housing 6. Details of the configuration of the moving body 4 will be described later.

  A first wire support member 21 is disposed at the upper end portion of the guide rail 20, and a second wire support member 22 is disposed at the lower end portion of the guide rail 20. The first wire support member 21 and the second wire support member 22 support the wire 3 with respect to the guide rail 20.

  FIG. 2 is a schematic view showing the inside of the door 9 in which the window regulator 1 is arranged, as a cross section taken along line AA of FIG.

  The window regulator 1 is disposed between the outer wall 91 and the inner wall 92 of the door 9. A surface of the inner wall 92 on the vehicle compartment side (opposite side of the outer wall 91) is covered with an unillustrated lining made of resin, for example. The outer wall 91 is curved so that the center portion in the height direction swells outward in the vehicle width direction. Similarly to the outer wall 91, the window glass 90 is curved so that the center portion in the height direction swells outward in the vehicle width direction. The guide rail 20 is curved in an arc shape along the window glass 90.

  In the window regulator 1, the first wire support member 21 and the second wire support member 22 are fixed to the inner wall 92. The first wire support member 21 is attached to the inner wall 92 by a bolt 26 (shown in FIG. 1) that passes through the first wire support member 21. The tip of the bolt 26 is screwed into a nut 93 that penetrates the inner wall 92 and is disposed on the vehicle interior side of the inner wall 92. The second wire support member 22 is attached to the inner wall 92 by a bolt 27 (shown in FIG. 1) that passes through the second wire support member 22. The tip of the bolt 27 is threadedly engaged with a nut 93 that penetrates the inner wall 92 and is disposed on the vehicle interior side of the inner wall 92.

  As shown in FIGS. 1 and 2, the motor 5 is disposed outside the window glass 90 in the vehicle width direction of the vehicle. More specifically, the motor 5 is disposed at a position where at least a portion thereof overlaps the window glass 90 when viewed from the vehicle width direction. The motor 5 is disposed outside the guide rail 20 in the vehicle width direction in the door 9, and a space having a width that does not hinder the movement of the moving body 4 is formed between the guide rail 20 and the outer wall 91. Has been.

  Next, the configuration of each part of the window regulator 1 will be described in detail with reference to FIGS. FIG. 3 is an overall view showing the entire window regulator 1. FIG. 4 is an exploded perspective view of the window regulator 1. 5 is a cross-sectional view taken along line BB in FIG. FIG. 6 is a cross-sectional view taken along the line CC of FIG. 7A and 7B show the yoke 51, where FIG. 7A is a top view, FIG. 7B is a front view, FIG. 7C is a bottom view, and FIG. 7D is a cross-sectional view taken along line EE of FIG. 8 is a cross-sectional view taken along the line DD of FIG. In the following description, “upper” or “lower” means “upper” or “lower” when the window regulator 1 is attached to the door 9.

  As shown in FIGS. 3 to 5, the housing 6 includes a drum housing 61 that houses the drum 40 and a gear housing 62 that houses a worm gear mechanism 80 (shown in FIG. 8) described later. The drum housing 61 and the gear housing 62 are fastened to each other by a plurality of bolts 63 and nuts 64 (shown in FIG. 4). Both the drum housing 61 and the gear housing 62 are made of resin. More specifically, the drum housing 61 is made of, for example, polyacetal (POM), and the gear housing 62 is made of, for example, polybutylene terephthalate (PBT).

  The drum housing 61 is mainly disposed on the inner side (the inner wall 92 side of the door 9) in the vehicle width direction of the vehicle than the window glass 90, and the gear housing 62 is disposed on the outer side (the door 9 of the door 9) in the width direction of the vehicle. It is arranged on the outer wall 91 side). In FIG. 5, the upper side of the drawing corresponds to the inner side in the vehicle width direction of the vehicle, and the lower side of the drawing corresponds to the outer side in the vehicle width direction of the vehicle.

  As shown in FIG. 4, the drum housing 61 is formed with an accommodation space 61 a for accommodating the drum 40. The drum housing 61 is formed with a first guide groove 611 and a second guide groove 612 that guide the wire 3 to the accommodation space 61a. The first guide groove 611 is formed above the accommodation space 61 a and opens toward the first wire support member 21. The second guide groove 612 is formed below the accommodation space 61 a and opens toward the second wire support member 22. The 1st guide groove 611 and the 2nd guide groove 612 are formed in the position where it deviated to the guide rail 20 side rather than the center part of accommodation space 61a.

  Further, as shown in FIG. 3, through holes 613 and 614 are formed in the drum housing 61 at both ends in the front-rear direction of the vehicle. The coupling members 71 and 72 (shown in FIG. 1) are fixed to the drum housing 61 by bolts 711 and 712 (shown in FIG. 1) inserted through the through holes 613 and 614, respectively.

  The drum 40 has a cylindrical shape, and a spiral groove 41 is formed on the outer peripheral surface thereof. An inner peripheral spline 42 a extending in the axial direction of the drum 40 is formed on the inner peripheral surface of the center hole 42 of the drum 40.

  The wire 3 is tensioned by springs 23 and 24 (shown in FIG. 3) held by the first wire support member 21 and the second wire support member 22. As a result, the wire 3 is stretched between the first wire support member 21 and the second wire support member 22 without being loosened.

  The routing route of the wire 3 will be described with the end on the first wire support member 21 side as the starting point and the end on the second wire support member 22 side as the end point. The wire 3 led out from the first wire support member 21 Extends downward along the guide rail 20 and is guided into the accommodation space 61 a via the first guide groove 611 of the drum housing 61. The wire 3 introduced into the accommodation space 61 a is accommodated in the groove 41 of the drum 40, circulates around the outer peripheral surface of the drum 40 a plurality of times, and is led out of the drum housing 61 via the second guide groove 612. The The wire 3 led out from the second guide groove 612 extends downward along the guide rail 20 and is supported by the second wire support member 22.

  When the wire 3 between the first wire support member 21 and the drum housing 61 is the upper wire 3a and the wire 3 between the second wire support member 22 and the drum housing 61 is the lower wire 3b, the rotation of the drum 40 causes The lengths of the upper wire 3a and the lower wire 3b change. That is, assuming that the rotation direction of the drum 40 when the moving body 4 is raised is the forward direction and the rotation direction of the drum 40 when the moving body 4 is lowered is the reverse direction, the drum 40 rotates in the forward direction. The length of 3a becomes shorter and the length of the lower wire 3b becomes longer. Further, when the drum 40 rotates in the reverse direction, the length of the upper wire 3a is increased and the length of the lower wire 3b is decreased. The moving body 4 moves in the vertical direction with respect to the guide rail 20 in accordance with the change in the length of the upper wire 3a and the lower wire 3b.

  The motor 5 is a direct current motor that generates a rotational driving force by a current supplied from the connector portion 5a. As shown in FIG. 6, the motor 5 includes a yoke 51 as a cover member, a pair of permanent magnets 52 and 53 fixed to the inner surface of the yoke 51, a shaft 54 rotatably supported by the yoke 51, and a shaft Armature 55 and commutator 56 provided so as to rotate integrally with 54, brush 57 that slides on commutator 56 as shaft 54 rotates, and spring 58 that presses brush 57 against commutator 56. doing. The brush 57 is electrically connected to an unillustrated terminal of the connector portion 5a (shown in FIGS. 3 and 4).

  The motor 5 has a rotational driving force applied to the shaft 54 by an attractive force and a repulsive force generated between a magnetic field generated in the armature 55 and a pair of permanent magnets 52 and 53 by a direct current supplied from a cable connected to the connector portion 5a. Is generated. The worm 50 accommodated in the gear housing 62 is connected to the shaft 54 so as to rotate integrally. The worm 50 includes a shaft portion 501 provided at the center portion and a gear portion 502 provided on the outer periphery of the shaft portion 501. The shaft portion 501 of the worm 50 and the shaft 54 of the motor 5 are connected by a connecting member 59.

  The yoke 51 is made of a magnetic material such as iron, and allows magnetic flux to pass between the pair of permanent magnets 52 and 53 and suppresses entry of foreign matters such as water into the inside. As shown in FIG. 7, the yoke 51 has a cylindrical part 511 and a bottomed cylindrical shape having a bottom part 512 that closes one end part of the cylindrical part 511 and the other end part of the cylindrical part 511 is open. In the present embodiment, a cylindrical tube portion 511 and a disc-shaped bottom portion 512 are integrally formed. Further, in the present embodiment, a flange portion 513 projecting outward from the end portion on the opening 511a side of the cylindrical portion 511 is formed integrally with the cylindrical portion 511. The flange portion 513 is formed with a plurality of bolt insertion holes 513 a through which bolts 65 (shown in FIGS. 3 and 4) for fixing the yoke 51 to the gear housing 62 are inserted.

  As shown in FIG. 3, the rotation axis O of the shaft 54 and the worm 50 of the motor 5 is inclined by an angle θ with respect to a straight line orthogonal to the longitudinal direction of the guide rail 20. In the motor 5, the bottom portion 512 is disposed above the opening 511 a of the cylindrical portion 511 due to the inclination of the rotation axis O. That is, when the guide rail 20 is fixed to the door 9, the bottom portion 512 is positioned above the opening 511 a of the cylindrical portion 511. Thereby, the foreign material resistance of the motor 5 is improved.

  The rotation of the shaft 54 is decelerated by the worm gear mechanism 80 shown in FIG. 8 and transmitted to the drum 40 via the output shaft 81 of the worm gear mechanism 80. An outer peripheral spline 81 a that engages with an inner peripheral spline 42 a formed on the inner peripheral surface of the center hole 42 of the drum 40 is formed on the outer peripheral surface at one end of the output shaft 81. The output shaft 81 is connected to the drum 40 so as not to rotate relative to the outer periphery spline 81a by the spline engagement with the inner periphery spline 42a of the drum 40.

  The worm gear mechanism 80 receives the rotational force from the worm wheel 82 via the output shaft 81, the worm wheel 82 that meshes with the worm 50, a plurality of dampers 83 made of an elastic body such as rubber, and the plurality of dampers 83. A hub 84 that rotates integrally with the shaft 81 is provided.

  The output shaft 81 integrally includes a large diameter portion 811 protruding from the gear housing 62 and a small diameter portion 812 having a smaller diameter than the large diameter portion 811. An outer peripheral spline 81 a that is spline-engaged with the inner peripheral spline 42 a of the drum 40 is formed on the outer peripheral surface of the large-diameter portion 811. Further, an outer peripheral spline 81b that is spline-engaged with the hub 84 is formed at the end of the small diameter portion 812 opposite to the large diameter portion 811.

  The worm wheel 82 includes a disc-shaped bottom portion 821 having an insertion hole 821a through which the output shaft 81 is inserted at the center, and an outer peripheral wall portion 822 formed to protrude in the axial direction along the outer peripheral edge of the bottom portion 821. In addition, a plurality of inner wall portions 823 projecting inward from the inner surface of the outer peripheral wall portion 822 are integrally provided. FIG. 8 shows only one inner wall portion 823 among the plurality of inner wall portions 823.

  Worm teeth 822 a are formed on the outer peripheral surface of the outer peripheral wall portion 822. The inner diameter of the insertion hole 821a in the bottom 821 is formed larger than the outer diameter of the small diameter part 812 of the output shaft 81, and between the inner peripheral surface of the insertion hole 821a and the outer peripheral surface of the small diameter part 812 of the output shaft 81, A slight gap is formed.

  The hub 84 has a disc-shaped main body 841 formed with an insertion hole 841a through which the small-diameter portion 812 of the output shaft 81 is inserted in the center, and a plurality of protrusions protruding from the main body 841 toward the bottom 821 of the worm wheel 82. 842 in an integrated manner. An inner peripheral spline 841b that is spline-engaged with the outer peripheral spline 81b in the small diameter portion 812 of the output shaft 81 is formed on the inner peripheral surface of the insertion hole 841a. The hub 84 is restricted from moving relative to the output shaft 81 by a snap ring 85 fitted to the small diameter portion 812 of the output shaft 81.

  The damper 83 is disposed between the inner wall portion 823 of the worm wheel 82 and the protrusion 842 of the hub 84. The damper 83 has a function of absorbing the torque pulsation of the motor 5 and smoothing the rotation of the output shaft 81. The worm wheel 82 and the hub 84 are relatively rotatable within a range in which the damper 83 is elastically deformed and compressed. With the above configuration, the worm gear mechanism 80 decelerates the rotation of the rotor of the motor 5, suppresses torque pulsation, and transmits the torque to the output shaft 81.

  In the drum housing 61, a through hole 615a is formed at the center of the bottom 615 that forms the accommodation space 61a. A cylindrical protrusion 615b is formed around the through hole 615a in the bottom 615. A supported portion 810 that protrudes from the tip end of the output shaft 81 is inserted inside the protrusion 615b. Thereby, the supported portion 810 is pivotally supported by the drum housing 61, and the output shaft 81 is rotatably supported.

  An inner flange portion 43 that protrudes inward is formed at an end portion on the bottom portion 615 side of the drum housing 61 on the inner peripheral surface of the center hole 42 of the drum 40. The front end surface of the inner flange portion 43 faces the outer peripheral surface of the protrusion 615b with a slight gap. Thereby, the drum 40 is rotatably supported in the accommodation space 61a. The outer peripheral surface of the drum 40 faces the peripheral wall portion 616 that forms the accommodation space 61 a together with the bottom portion 615.

  The drum housing 61 is formed with a protrusion 617 extending in the vertical direction. The protrusion 617 protrudes from the main body 610 of the drum housing 61 toward the inner wall 92 side (vehicle inner side) of the door 9. The drum housing 61 is guided to the guide rail 20 by the protrusion 617 sliding with the guide rail 20.

  The guide rail 20 is formed by bending a metal plate such as a zinc steel plate. The guide rail 20 has a flat plate portion 200 extending in the longitudinal direction (vertical direction), and a first side plate portion 201 erected from both end portions in the width direction of the flat plate portion 200 toward the main body portion 610 of the drum housing 61. The second side plate portion 202 and the flange portion 203 that protrudes from the front end portion of the first side plate portion 201 to the opposite side of the flat plate portion 200 are integrally provided. Here, the width direction is a short direction perpendicular to the longitudinal direction of the guide rail 20 and is a direction corresponding to the longitudinal direction of the vehicle.

  A ridge 617 of the drum housing 61 is disposed between the first side plate portion 201 and the second side plate portion 202. That is, the inclination of the drum housing 61 with respect to the guide rail 20 is regulated by the protrusion 617 being interposed between the first side plate portion 201 and the second side plate portion 202 of the guide rail 20.

  In the window regulator 1 configured as described above, when the motor 5 rotates in the forward direction or the reverse direction, the rotational force of the shaft 54 is decelerated by the worm gear mechanism 80 and transmitted to the drum 40. When the motor 5 rotates in the forward direction due to the rotation of the drum 40, the wire 3 on the upper wire 3a side is wound around the drum 40 and sent out from the accommodation space 61a to the lower wire 3b side, and the housing 6 is guided. It is guided by the rail 20 and moves upward together with the window glass 90. Further, when the motor 5 rotates in the reverse direction, the wire 3 on the lower wire 3b side is wound around the drum 40 and sent out from the accommodation space 61a to the upper wire 3a side, and the housing 6 is guided to the guide rail 20. And move downward together with the window glass 90. Thereby, the window glass 90 moves up and down.

(Operation and effect of the embodiment)
According to the embodiment described above, since the motor 5 is arranged outside the window glass 90 in the vehicle width direction of the vehicle, the noise generated by the motor 5 is sound-insulated by the window glass 90 and is heard by the passenger. Sound is reduced. In particular, in the present embodiment, when the window regulator 1 disposed in the door 9 is viewed from the vehicle width direction, the motor 5 is disposed at a position where at least a part of the motor 5 overlaps with the window glass 90. Can be definitely obtained. Further, since the moving body 4 having the motor 5 moves together with the window glass 90, the relative positional relationship between the motor 5 and the window glass 90 is constant, and the window glass 90 is in any position in the vertical direction. The noise of the motor 5 reaching the passenger's ear is reduced by the window glass 90.

  In the present embodiment, the rotation axis O of the shaft 54 of the motor 5 and the rotation axis O of the worm 50 is inclined by an angle θ with respect to a straight line perpendicular to the longitudinal direction of the guide rail 20. By being positioned above the opening 511a of the cylindrical portion 511, the overlapping portion of the motor 5 and the window glass 90 when the window regulator 1 is viewed from the vehicle width direction is large. That is, the motor 5 has a restriction on the position of the worm 50 connected to the shaft 54 in mesh with the worm wheel 82, but the motor 5 and the window glass are inclined by tilting the rotation axis O as described above. The overlapping part with 90 is enlarged. Thereby, the improvement of silence is achieved.

  Further, when the yoke 51 is tilted, the opening 511a of the cylindrical portion 511 is directed downward. For example, foreign matter such as water that has entered the door 9 from between the window glass 90 and the packing of the window frame in the door 9 is in contact with the yoke 51 and the gear. Intrusion into the motor 5 from between the housing 62 is suppressed. Thereby, the foreign material resistance of the window regulator 1 improves.

  As mentioned above, although this invention was demonstrated based on embodiment, embodiment described above does not limit the invention based on a claim. In addition, it should be noted that not all the combinations of features described in the embodiments are essential to the means for solving the problems of the invention. Further, the present invention can be appropriately modified and implemented without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Window regulator, 3 ... Wire, 3a ... Upper wire, 3b ... Lower wire, 4 ... Moving body, 5 ... Motor, 5a ... Connector part, 6 ... Housing, 9 ... Door, 20 ... Guide rail, 21 ... 1st Wire support member, 22 ... second wire support member, 23,24 ... spring, 26,27 ... bolt, 40 ... drum, 41 ... groove, 42 ... center hole, 42a ... inner spline, 43 ... inner collar, 50 ... Worm, 51 ... Yoke, 52, 53 ... Permanent magnet, 54 ... Shaft, 55 ... Armature, 56 ... Commutator, 57 ... Brush, 58 ... Spring, 59 ... Connecting member, 61 ... Drum housing, 61a ... Housing space 62 ... Gear housing, 63 ... Bolt, 64 ... Nut, 65 ... Bolt, 71, 72 ... Connecting member, 80 ... Worm gear mechanism, 81 ... Output shaft, 81a, 81b ... Peripheral spline, 8 ... Worm wheel, 83 ... Damper, 84 ... Hub, 85 ... Snap ring, 90 ... Window glass, 91 ... Outer wall, 92 ... Inner wall, 93 ... Nut, 200 ... Flat plate part, 201 ... First side plate part, 202 ... Second Side plate portion, 203 ... collar portion, 501 ... shaft portion, 502 ... gear portion, 511 ... cylindrical portion, 511a ... opening, 512 ... bottom portion, 513 ... collar portion, 513a ... bolt insertion hole, 610 ... main body portion, 611 ... first 1 guide groove, 612 ... 2nd guide groove, 613, 614 ... through hole, 615 ... bottom, 615a ... through hole, 615b ... projection, 616 ... peripheral wall, 617 ... projection, 711, 712 ... bolt, 810 ... Supported part, 811 ... large diameter part, 812 ... small diameter part, 821 ... bottom part, 821a ... insertion hole, 822 ... outer peripheral wall part, 822a ... worm teeth, 823 ... inner wall part, 841 ... main body part, 841a ... insertion hole, 8 1b ... inner peripheral spline, 842 ... projection, O ... Rotation axis, theta ... angle

Claims (3)

A window regulator provided on the door of the vehicle for raising and lowering the window glass of the door,
A guide rail arranged along the moving direction of the window glass,
A wire stretched along the longitudinal direction of the guide rail;
A moving body that is guided by the guide rail and moves together with the window glass;
The moving body includes a drum around which a part of the wire is wound, a motor that generates a driving force for rotationally driving the drum, and a housing that holds the drum and the motor.
The motor is disposed outside the window glass in the vehicle width direction of the vehicle.
Window regulator. The motor is disposed at a position where at least a part of the motor overlaps with the window glass when viewed from the vehicle width direction.
The window regulator according to claim 1. The motor has a cover member that prevents entry of foreign matter into the interior,
The cover member has a bottomed tubular shape having a tubular portion and a bottom portion that closes one end portion of the tubular portion, and the other end portion of the tubular portion is open,
When the guide rail is fixed to the door, the bottom portion is positioned above the opening of the cylindrical portion,
The window regulator according to claim 1 or 2.

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