JP7202277B2 - Driving device and window glass lifting device - Google Patents

Description

The present invention relates to a driving device and a windowpane lifting device.

2. Description of the Related Art Conventionally, there has been known a driving device, such as a window regulator attached to a door of a vehicle, which transmits a driving force to a moving object via a cable to move the moving object.
The driving device includes a drum that is rotationally driven by a driving section, a pulley that is rotatably supported, and a cable that is suspended between the drum and the pulley. As a result, the cable is wound on the drum, or the cable wound on the drum is paid out.
In the driving device having such a configuration, it is possible to prevent the cable from vibrating due to a sudden shock from the outside, such as when the door is opened and closed, for example. In order to prevent this, a guide member is provided that slidably supports the cable to regulate the moving direction of the cable.
As an example of such a guide member, for example, in "Patent Document 1", there is a wire guide member provided in a window regulator that is a driving device, which extends along a wire (cable) and has an outer peripheral surface of the wire. Accordingly, a wire guide member is disclosed that has a wire guide groove that is concave in cross section and has a curved bottom surface.

JP 2011-69059 A

According to the wire guide member in the aforementioned "Patent Document 1", the cable always slides in the wire guide groove while being in surface contact with the inner peripheral surface of the wire guide groove. It is possible to suppress the vibration of the cable and prevent the generation of abnormal noise even if it is subjected to vibration.

However, in the wire guide groove, the cable slides while being in contact with the bottom surface and both side surfaces of the inner peripheral surface of the wire guide groove, which causes a problem of increased sliding resistance.

SUMMARY OF THE INVENTION An object of the present invention is to provide a driving device that is a guide member that regulates the moving direction of a cable and that improves the slidability of the cable, and a window glass lifting device that includes the driving device. be.

The problems to be solved by the present invention are as described above, and the means for solving the problems will now be described.

That is, the driving device of the present invention includes a drum, a pulley rotatably supported at a position spaced apart from the drum, a cable suspended between the drum and the pulley, and rotating the drum. a driving unit for winding the cable on the drum or feeding the cable wound on the drum; and a guide member for regulating the moving direction of the cable between the drum and the pulley. and the guide member includes a flat portion having a sliding surface on which the cable can slide, and a concave portion provided on the sliding surface and recessed in a direction intersecting with the cable sliding on the sliding surface. and a projecting portion projecting in a direction including a direction perpendicular to the sliding surface and sandwiching the cable and the sliding surface, the sliding surface facing the cable with respect to the recess. on both sides in the moving direction, at the center in the moving direction, a pair of convex portions protruding by gently curving toward the cable side, and the projecting portion is formed by the concave portion in the moving direction. It is characterized by being provided on the side edge of the flat portion corresponding to the existing position .

As effects of the present invention, the following effects are obtained.
That is, according to the drive device of the present invention and the windowpane lifting device provided with the drive device, it is possible to improve the slidability of the cable with respect to the guide member that regulates the moving direction of the cable.

1 is a diagram showing the overall configuration of a driving device according to an embodiment of the present invention; FIG. 1. It is the figure which showed the structure of the guide member provided in the drive device of FIG. 1, (a) is the figure seen from the right side, (b) is the figure seen from the back, (c) is It is the figure seen from the downward direction. FIG. 10A is a diagram showing the operation of a windowpane lifting device provided with a drive device according to an embodiment of the present invention, in which (a) moves the windowpane of a door, which is an object to be moved, to a position where it is in a blocking state; FIG. 3B is a diagram showing a state in which the windowpane of the door, which is a moving object, has been moved to a position where it is in an open state.

Next, the configuration of the drive device 1 according to one embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG.
In the following description, for the sake of convenience, the directions of the arrows shown in FIG. Further, the vertical direction, the front-rear direction, and the left-right direction of the guide member 7 are defined and described by the directions of the arrows shown in FIG. Further, the vertical direction and the front-rear direction of the door 100 are defined and described by the directions of the arrows shown in FIG.

[Overall Configuration of Driving Device 1]
First, the overall configuration of the driving device 1 will be described with reference to FIGS. 1 and 3. FIG.
In FIG. 1, a driving device 1 in this embodiment is an object moving device that transmits a driving force from a driving source to a moving object through a cord body to move the moving object.
As an example of such a drive device 1, for example, as will be described later, it is applied as a drive system of a window glass lifting device 1A provided on a door 100 (see FIG. 3) of a vehicle or the like, and a window glass W is used as a moving object. , an object moving device for vertically moving the window glass W via a cable 5 which is a cord body.

The application example of the drive device 1 is not limited to the case where it is applied as the drive system of the windowpane lifting device 1A as shown in the present embodiment. It can also be applied as a drive system for other devices such as a pedestrian support device for supporting the walking of pedestrians and a lifting device for lifting and lowering a device such as a chair or a bed on which a person sits. .

The drive device 1 mainly includes a carrier plate 2, a drive section 3, a drum section 4, a cable 5, a pulley 6, a guide member 7, and the like.

The carrier plate 2 is a member that moves an attached moving object (in this embodiment, the window glass W provided on the door 100) in a predetermined movement direction (in this embodiment, the vertical direction).
The carrier plate 2 is a member that reciprocates between a plurality of positions. For example, in the present embodiment, the carrier plate 2 moves between a first position, which is an upper end restraining position P1, and a second position, which is a lower end restraining position P2.

Here, the upper end restraint position P1 is an arbitrary position set on one side (upper side in this embodiment) in the moving direction of the carrier plate 2 .
Further, the lower end restraint position P2 is an arbitrary position set on the other side (lower side in the present embodiment) in the moving direction of the carrier plate 2 .

Then, the carrier plate 2 reciprocates between the upper end restraint position P1 and the lower end restraint position P2 by transmitting the driving force through the cable 5 .

Next, the driving section 3 will be explained.
The drive unit 3 is provided as a drive source of the drive device 1 , supplies power to rotationally drive the drum 41 provided in the drum unit 4 , and supplies drive force to the carrier plate 2 via the cable 5 .
The drive unit 3 includes an electric motor 31, and the output shaft of the electric motor 31 is connected to a drum 41 around which the cable 5 is wound via a power transmission mechanism (not shown) capable of physically supplying driving force. .
Also, the electric motor 31 is connected to a power supply (not shown) and driven by electric power transmitted from the power supply.

Next, the drum section 4 will be described.
The drum part 4 winds and feeds out the cable 5. As will be described later, a drum 41 to which one ends of a first cable member 51 and a second cable member 52 constituting the cable 5 are respectively fixed; and a drum housing 42 for housing the drum 41, and the like.

The drum 41 is a cylindrical member having a spiral groove formed on its outer peripheral surface, and is connected to the electric motor 31 via a power transmission mechanism (not shown) as described above.
Further, the drum 41 is accommodated in the drum housing 42 so as to be rotatable about the drum shaft 42b.

On the other hand, the drum housing 42 is attached to a predetermined location (the inside of the door 100 in this embodiment) via a mounting bracket 42a, and supports the drum 41 by penetrating it so as to be rotatable via a drum shaft 42b. At the same time, the ends of the first cable member 51 and the second cable member 52 connected to the drum 41 are each guided toward the drum 41 .
Further, the drum housing 42 supports the electric motor 31 of the drive section 3, the power transmission mechanism (not shown), and the like via mounting brackets 42a.

The driving force from the drive unit 3 rotates the drum 41 about the drum shaft 42b, thereby winding the cable 5 on the drum 41 or unwinding the cable 5 wound on the drum 41. , the carrier plate 2 is moved in a predetermined movement direction (vertical direction).

Next, the cable 5 will be explained.
The cable 5 is a member that pulls the carrier plate 2 and moves the carrier plate 2 in a predetermined movement direction (vertical direction).
The cable 5 has a first cable member 51 for moving the carrier plate 2 toward one side (upper side in this embodiment) in the moving direction (vertical direction) and the other side in the moving direction (vertical direction). It is composed of a second cable member 52 or the like for moving the carrier plate 2 downward (in the present embodiment).

One end of the first cable member 51 is fixed to the drum 41 as described above, whereby the first cable member 51 is connected to the driving section 3 via the drum 41 .
Also, the other end of the first cable member 51 is connected to the carrier plate 2 .
Further, the direction of movement of the first cable member 51 is guided by the pulley 6 between the one end and the other end, and the direction in which the first cable member 51 extends is changed.

One end of the first cable member 51 is wound around the drum 41 by the driving force of the drive unit 3, so that the other end of the first cable member 51 moves along with the carrier plate 2 in one direction of movement (vertical direction). It is moved (raised) to the side (upper side).

On the other hand, one end of the second cable member 52 is also fixed to the drum 41 similarly to the first cable member 51 , thereby connecting the second cable member 52 to the drive section 3 via the drum 41 . .
Also, the other end of the second cable member 52 is also connected to the carrier plate 2 in the same manner as the first cable member 51 .

Then, one end of the second cable member 52 is wound around the drum 41 by the driving force of the drive unit 3, so that the other end of the second cable member 52 moves along with the carrier plate 2 to the other end of the moving direction (vertical direction). is moved (downward) to the side (downward).

In this embodiment, the cable 5 is composed of a plurality of cable members including the first cable member 51 and the second cable member 52, but the present invention is not limited to this. The cable 5 may be configured only by the first cable member 51 without providing the member 52 .
In this embodiment, the first cable member 51 is used as an ascending cable, and the second cable member 52 is used as a descending cable.

Next, the pulley 6 will be explained.
The pulley 6 is a direction changing member that changes the extending direction of the cable 5 (more specifically, the first cable member 51).
The pulley 6 is rotatably supported at a position spaced apart from the drum 41 (position spaced upward in this embodiment). is suspended, the direction of the first cable member 51 is changed from upward extending from the drum 41 to downward extending to the carrier plate 2 .

That is, the pulley 6 is a member that changes the direction in which the first cable member 51 extending from the drum 41 to the pulley 6 extends to the direction in which the cable member 51 extends from the pulley 6 to the carrier plate 2 . The downward force directed from the pulley 6 towards the drum 41 due to the winding of the first cable member 51 by 41 is converted into an upward force directed from the carrier plate 2 towards the pulley 6 .

Next, the guide member 7 will be explained.
The guide member 7 is a member that regulates the routing path of the cable 5 (more specifically, the first cable member 51), is provided between the drum 41 and the pulley 6, and guides the first cable member 51. Regulate the direction of movement.
The details of the configuration of the guide member 7 will be described later.

The drive device 1 configured as described above can be applied, for example, as a drive system of the windowpane lifting device 1A provided on the door 100 of a vehicle or the like.
That is, in this embodiment, the drive device 1 described above, the rail member 8 for guiding the carrier plate 2, and the like constitute the windowpane lifting device 1A.

Here, the rail member 8 extends in the movement direction (vertical direction) of the carrier plate 2, and along the shape of the door 100, gently protrudes, for example, to the right side (the front side of the paper surface in FIG. 1). The door 100 is attached to the door 100 via an attachment member (not shown) for attaching the windowpane lifting device 1A to an attachment target member such as an inner panel of a vehicle (see FIG. 2B). Fixed.
A pulley 6 is attached to one end (upper end in this embodiment) of the rail member 8 in the extending direction, and a pulley 6 is attached to the other end (lower end in this embodiment). is attached with a drum housing 42 that houses a drum 41 .
Furthermore, the first cable member 51 and the second cable member 52 that constitute the cable 5 are both routed along the rail member 8 .

A guide member 7 is provided on one side of the central portion in the extension direction of the rail member 8, and the sliding surface 71a (see FIG. 2A) of the guide member 7 to be described later. Thus, the first cable member 51 is configured to be slidable.
As a result, the cable 5 is slidably supported by the guide member 7, so that even if the cable 5 is subjected to a sudden external impact, such as when the door 100 is opened or closed, the cable 5 will remain in place. It is possible to suppress the occurrence of vibration and the generation of abnormal noise.

The rail member 8 is not particularly limited as long as it guides the movement of the carrier plate 2, and the extending direction and length can be changed as appropriate.
In this embodiment, the guide member 7 is provided only on one side of the central portion of the rail member 8 in the extension direction, but the present invention is not limited to this. A guide member 7 may also be provided on the other side of the central portion in the extension direction, and the first cable member 51 may be slidably supported by the pair of guide members 7 .

In the windowpane lifting device 1A configured as described above, the windowpane W, which is an object to be moved, is connected to the pair of mounting holes 2a provided in the carrier plate 2 via the mounting portion Wa positioned at the lower end. It is attached by a fastening member or the like and moves together with the carrier plate 2 .

Specifically, the driving force from the drive unit 3 rotates the drum 41 in the normal direction (for example, the direction of arrow A in FIG. 1), so that one end of the first cable member 51 is attached to the drum 41 One end of the second cable member 52 is wound up, and one end of the second cable member 52 is let out from the drum 41 .
Further, by rotating the drum 41 in the reverse direction (for example, the direction of arrow B in FIG. 1) by the driving force from the drive unit 3, one end of the first cable member 51 is extended from the drum 41, and One end of the second cable member 52 is wound around the drum 41 , and the window glass W is moved (lowered) together with the carrier plate 2 toward the other side (lower side) in the extending direction of the rail member 8 .

Then, as shown in FIG. 3, the windowpane lifting device 1A moves the windowpane W in a predetermined moving direction (vertical direction), thereby moving the door (for example, the front door of a vehicle) on which the windowpane W is arranged. ) 100, such as switching between a closed state (state shown in FIG. 3A) and an open state (state shown in FIG. 3B). can be demonstrated.

Specifically, the window glass W is provided so as to be vertically movable while being guided by the rail member 8 via the carrier plate 2 .
Then, as shown in FIG. 3(a), when the carrier plate 2 reaches the upper end restraining position P1, the window glass W comes into contact with the sash 102 on the upper part of the door 100, and the space 101 is in a closed state. .
Further, as shown in FIG. 3B, when the carrier plate 2 reaches the lower end restraint position P2, the window glass W is stored in the storage portion 103 provided at the bottom of the door 100, and the state of the space portion 101 is changed. Open state.

The structure of the door 100 on which the window glass W is arranged is not limited to the front door for a vehicle as in the present embodiment, and may be a rear door for a vehicle, a hatchback door, or the like. There may be.
In addition, in the present embodiment, the moving direction of the window glass W is the vertical direction, but it is not limited to this. For example, it may be in any direction, such as the front-rear direction or the left-right direction.
Furthermore, with the door 100 in the open state, the entire plate surface of the window glass W may be completely stored in the storage portion 103 provided inside the door 100 as in the present embodiment. A part of the plate surface of the window glass W may be stored in the storage part 103 and the remaining part may be left in the space part 101 .

[Configuration of guide member 7]
Next, the configuration of the guide member 7 will be described in detail with reference to FIG.
As shown in FIG. 2A, the guide member 7 has a flat portion 71 extending in the moving direction of the cable 5 (the vertical direction in this embodiment). A plurality of locking pieces 72 (see FIG. 2B) protruding in an L-shape are provided on the surface on the opposite side (the left side in this embodiment).

On the other hand, as shown in FIGS. 2(b) and 2(c), the rear surface of the central portion of the rail member 8 in the extending direction, that is, the side opposite to the side on which the carrier plate 2 moves (the left side in this embodiment). A support member 81 is fixed to the surface of the cable 5 via a fastening member or the like (not shown) so as to protrude toward the wiring side (rear side in this embodiment) of the cable 5 .

By being locked to the support member 81 via the plurality of locking pieces 72, the guide member 7 is positioned on one side (rear side in this embodiment) of the central portion in the extension direction of the rail member 8. At the side portion, it is detachably fixed with the flat portion 71 facing the side (the right side in this embodiment) along which the cable 5 moves.
The locking piece 72 extends in the left-right direction from the flat portion 71 , bends toward the center of the support member 81 from the top, bottom, front, and rear sides of the support member 81 , and can be provided so as to hold around the support member 81 .

Further, a pair of convex portions 73 are provided on the back surface of the guide member 7, and a pair of through holes 81a having shapes conforming to the convex portions 73 are provided in the central portion of the support member 81. ing.

In a state in which the guide member 7 is fixed to the rail member 8 via the support member 81, the pair of convex portions 73 are inserted and fitted into the through holes 81a of the support member 81, respectively.
As a result, the guide member 7 is reliably locked at a predetermined position with respect to the support member 81 without causing positional deviation or the like, and the mounting position with respect to the rail member 8 is firmly held.

The numbers of the convex portions 73 provided in the guide member 7 and the numbers of the through holes 81a provided in the support member 81 are not limited to those of the present embodiment. One each 81a may be provided, or three or more of each of these convex portions 73 and through holes 81a may be provided.
Further, as will be described later, as long as it does not hinder the movement of the cable 5 sliding on the flat portion 71 (more specifically, the sliding surface 71a formed by the flat portion 71) of the guide member 7, it may be, for example, a convex shape. The support member 81 may be provided with a portion corresponding to the portion 73, and the guide member 7 may be provided with a portion corresponding to the through hole 81a.

The flat portion 71 constitutes a sliding surface 71a on which the cable 5 can slide. For example, as shown in FIG. , it is gently curved so as to protrude toward the cable 5 (right side in this embodiment).

Then, as described above, when the drum 41 is rotated by the driving force from the drive unit 3 (see FIG. 1) and the cable 5 (more specifically, the first cable member 51) is raised or lowered, the cable 5 slides along the curved shape of the rail member 8 from the upper end portion to the lower end portion of the central portion in the width direction (the front-rear direction in this embodiment) of the flat portion 71 . .
That is, a sliding surface 71a on which the cable 5 can slide (specifically, the hatched area in FIG. 2(a)) is formed in the central portion of the plane portion 71 in the width direction (front-rear direction). be done.

With such a configuration, the cable 5 slides along the curved rail member 8 on the sliding surface 71a of the flat portion 71 without being significantly changed in movement direction by the sliding surface 71a. , the surface pressure of the contact portion with the cable 5 on the sliding surface 71a can be suppressed, and the load generated between the sliding surface 71a and the cable 5 can be reduced, so that the cable 5 moves (sliding). It is possible to suppress the driving force required for the movement.

A concave portion 71b is provided in the center portion of the flat portion 71 in the vertical direction.
As shown in FIGS. 2A and 2B, the concave portion 71b is provided so as to extend in the width direction (front-rear direction) of the flat portion 71, and in a cross-sectional view in the front-rear direction, the recess 71b increases toward the bottom portion. It is composed of a trapezoidal recess whose opening width gradually narrows.
In other words, the recessed portion 71b is provided on the sliding surface 71a of the flat portion 71, and is formed by a depression that is recessed in a direction intersecting the cable 5 sliding on the sliding surface 71a (front-rear direction).

With such a configuration, the contact area with the cable 5 on the sliding surface 71a can be reduced by the area occupied by the recess 71b. Sliding property can be improved.

The shape of the concave portion 71b is not limited to a trapezoidal cross-sectional shape as in the present embodiment, and may be, for example, a semi-circular cross-sectional shape, an arc-shaped cross-sectional view, a rectangular cross-sectional view, or a polygonal cross-sectional shape. etc., any shape may be used.
Further, the direction in which the concave portion 71b extends is limited to the width direction (front-rear direction) of the flat portion 71, that is, the direction orthogonal to the cable 5 sliding on the sliding surface 71a, as in the present embodiment. For example, it may be in a direction that obliquely crosses the cable 5 sliding on the sliding surface 71a.
Further, the position where the concave portion 71b is provided is not limited to the central portion in the vertical direction of the flat portion 71 as in the present embodiment. may be
Furthermore, in the present embodiment, the recess 71b is provided only at one location on the plane portion 71, but is not limited to this. good too.

By the way, as described above, in a conventional wire guide member having a concave wire guide groove extending along a wire (cable) and having a bottom surface curved along the outer peripheral surface of the wire, By widening the gaps on both sides of the wire guide groove and allowing the cable to contact mainly only the bottom surface of the wire guide groove, the contact area between the cable and the guide member is reduced, and the sliding resistance of the cable is reduced. It is conceivable to reduce

However, when the cable vibrates due to a sudden impact from the outside, the cable swings greatly toward both sides of the wire guide groove and comes into contact with both sides. Since the groove comes into contact with the bottom surface and one side surface of the groove, it is unlikely that the slide resistance of the cable will be greatly reduced.

In contrast, in the present embodiment, by providing the concave portion 71b in the sliding surface 71a of the flat portion 71, regardless of the occurrence of vibration of the cable 5 due to a sudden impact from the outside, the sliding surface 71a is free from vibration. It is possible to reliably reduce the contact area with the cable 5 at, reduce the sliding resistance of the cable 5, and improve the slidability of the cable 5.

Protrusions 74 are provided at both ends of the plane portion 71 in the width direction (front-rear direction).
As shown in FIG. 2(c), each protrusion 74 extends in a direction including a direction perpendicular to the sliding surface 71a of the planar portion 71 (in this embodiment, the left-right direction), that is, the rightward direction. It is configured so as to protrude into the
Further, the tip of each projecting portion 74 is curved toward the central portion in the width direction (front-rear direction) of the flat portion 71 .

The cable 5 slides on the sliding surface 71a of the flat portion 71 between these protrusions 74 provided at both ends of the flat portion 71 in the width direction (front-rear direction). .
In other words, these protrusions 74 are provided so as to sandwich the cable 5 and the sliding surface 71a.

With such a configuration, for example, even if the cable 5 sliding on the sliding surface 71a of the flat portion 71 sways to one side or the other side in the width direction (front-rear direction) of the flat portion 71, these The protrusion 74 prevents the cable 5 from falling off the guide member 7 , and the guide member 7 can reliably regulate the moving direction of the cable 5 .
Moreover, it is possible to prevent the cable 5 from being caught between the guide rail 8 and the flat portion 71 by the projecting portion 74 .

In the present embodiment, in the width direction (front-rear direction) of the flat portion 71, two protrusions are provided at both upper and lower end portions of the end portion on the side of the rail member 8 (the front end portion in this embodiment). 74 is provided, and one projecting portion 74 is provided at the center portion in the vertical direction of the end portion opposite to the rail member 8 side (the rear end portion in this embodiment), The present invention is not limited to this, and at least one or more protrusions 74 may be provided at both ends of the flat portion 71 in the width direction (front-rear direction).

Further, the shape of each protrusion 74 is not limited to the present embodiment as long as it has a configuration that protrudes in a direction including a direction (horizontal direction) perpendicular to the sliding surface 71a as a directional component. For example, the configuration may be such that it extends over the entire widthwise end of the flat portion 71 , and the tip of each protrusion 74 extends toward the center of the flat portion 71 in the widthwise direction (front-to-rear direction). and may protrude without bending.

As shown in FIG. 2(c), the projecting portion 74 includes a standing portion 74a rising from the flat portion 71 and a curved portion 74b extending from the tip of the standing portion 74a toward the inside of the flat portion 71. have.
The protrusions 74 are provided on both sides of the plane portion 71 in the front-rear direction in FIG.
Between the tip of the curved portion 74a provided at the tip of the projection 74 on one side of the flat portion 71 and the tip of the curved portion provided at the tip of the projection 74 on the other side of the flat portion 71, It is provided on the flat portion 71 so as to form a space.

The planar portion 71 is provided with convex portions that are convex to the right side in FIG. 2 on the upper side in FIG. 2 and the lower side in FIG.
The planar portion 71 has concave portions recessed leftward in FIG. 2 on both sides of the convex portion in the vertical direction.
The concave portion is shown as a concave portion 71b between the convex portion on the upward side and the convex portion on the downward side in the figure.
The convex portion of the planar portion 71 has a peak portion near the convex peak, and tension is applied to the cable 5 when the cable 5 contacts the top portion.

The projecting portion 74 is provided at a position corresponding to the vertical position of the convex portion in FIG.
Since the convex portion of the flat portion 71 presses the cable 5 so as to apply tension to the cable 5, the cable 5 is difficult to come off from the convex portion, but the cable 5 is spaced from the flat portion 71 in the concave portion. The cable 5 is easily detached because it is spaced apart.
Therefore, the projecting portion 74 is provided on the side edge of the flat portion 71 corresponding to the position where the concave portion exists in the vertical direction, and the curved portion provided at the tip covers the side portion of the flat portion 71 so that the flat portion It is possible to prevent the cable 5 from coming off the guide member 7 in a state where the vicinity of the center of 71 is open.

However, when the tip of each protrusion 74 is curved toward the central portion in the width direction (front-rear direction) of the flat portion 71 as in the present embodiment, for example, when the flat portion 71 slides Even if the cable 5 sliding on the surface 71a sways to one side or the other in the width direction (front-rear direction) of the flat portion 71 and tries to climb over the projection 74, the curved tip of the projection 74 hinders it. Therefore, it is possible to prevent the cable 5 from falling off from the guide member 7, and the guide member 7 can more reliably regulate the moving direction of the cable 5, which is more preferable.

By the way, in the present embodiment, the lubricant 75 is filled and held in the concave portion 71b provided in the sliding surface 71a of the flat portion 71 .

With such a configuration, when the cable 5 slides on the sliding surface 71 a of the guide member 7 , the lubricant 75 is always applied to the cable 5 . performance can be further improved.

[effect]
As described above, the driving device 1 in this embodiment includes the drum 41, the pulley 6 rotatably supported at a position separated from the drum 41, and the cable suspended between the drum 41 and the pulley 6. 5, a drive unit 3 that rotates the drum 41 to wind the cable 5 on the drum 41 or pays out the cable 5 wound on the drum 41, and between the drum 41 and the pulley 6, the cable 5 A guide member 7 is provided for regulating the movement direction of the.
The guide member 7 has a sliding surface 71a on which the cable 5 can slide, and a concave portion 71b provided on the sliding surface 71a and extending in a direction intersecting the cable 5 sliding on the sliding surface 71a. have.

With such a configuration, by providing the recess 71b in the sliding surface 71a, the contact area between the cable 5 and the guide member 7 can be reduced, and the sliding resistance of the cable 5 can be reduced. slidability can be improved.

Further, in the driving device 1 according to the present embodiment, the guide member 7 protrudes in a direction including a direction perpendicular to the sliding surface 71a, and the projecting portion 74 is provided with the cable 5 and the sliding surface 71a interposed therebetween. have

With such a configuration, for example, even if the cable 5 sliding on the sliding surface 71a of the guide member 7 sways to one side or the other side of the cable 5, the projection 74 prevents the cable from moving from the guide member 7. 5 can be prevented from falling off, and the movement direction of the cable 5 can be reliably regulated by the guide member 7. - 特許庁

Further, in the guide member 7 of the driving device 1 according to the present embodiment, a lubricant 75 is held inside the concave portion 71b.

With such a configuration, when the cable 5 slides on the sliding surface 71 a of the guide member 7 , the lubricant 75 is always applied to the cable 5 . performance can be further improved.

Further, the windowpane lifting device 1A in this embodiment includes a rail member 8 and the drive device 1 described above, the cable 5 is routed along the rail member 8, and the guide member 7 has a sliding surface 71a. It is a windowpane lifting device provided on a rail member 8 so as to be slidable with a cable 5 .

By having such a configuration, it is possible to suppress abnormal noise in the windowpane lifting device and ensure slidability.

Reference Signs List 1 driving device 1A window glass lifting device 2 carrier plate 2a mounting hole 3 driving unit 31 electric motor 4 drum unit 41 drum 42 drum housing 42a mounting bracket 42b drum shaft 5 cable 51 first cable member 52 second cable member 6 pulley 7 Guide member 71 Flat portion 71a Sliding surface 71b Concave portion 72 Locking piece 73 Protruding portion 74 Protruding portion 74a Standing portion 74b Curved portion 75 Lubricant 8 Rail member 81 Supporting member 81a Through hole W Window glass Wa Mounting portion P1 Upper end restraint Position P2 Lower end restraint position 100 Door 101 Space 102 Sash 103 Storage

Claims (3)

a drum and
a pulley rotatably supported at a position spaced apart from the drum;
a cable suspended between the drum and the pulley;
a driving unit that rotates the drum to wind the cable on the drum or pays out the cable that has been wound on the drum;
a guide member that regulates the moving direction of the cable between the drum and the pulley;
The guide member is
a flat portion having a sliding surface on which the cable can slide;
a concave portion provided in the sliding surface and recessed in a direction intersecting with the cable sliding on the sliding surface ;
a protrusion projecting in a direction including a direction perpendicular to the sliding surface and sandwiching the cable and the sliding surface;
The sliding surface is
on both sides in the direction of movement of the cable with respect to the recess,
At the center in the movement direction, it is composed of a pair of convex parts that gently curve and protrude toward the cable side,
The protrusion is
Provided on the side edge of the flat portion corresponding to the position where the recess in the moving direction exists,
drive. In the guide member,
a lubricant is retained within the recess;
2. The driving device according to claim 1 . A rail member and the driving device according to claim 1 or 2 ,
The cable is routed along the rail member,
The guide member is a windowpane lifting device, wherein the sliding surface is provided on the rail member so as to be slidable on the cable.

Images