JP2020142719A - Driving device - Google Patents

Abstract

To provide a driving device which does not consume much power and can be made light in weight.SOLUTION: A driving device 1 comprises a driving unit 2, a rotary member 3, a driven member 4, a winding member 6, a driven member energization member 7, an axial movement control member 8, a movement mechanism, and a free fitting mechanism. The axial movement control member 8 has a load unit which applies a load to rotation of the axial movement control member 8 around an axis X. The movement mechanism has a guide unit Sa for guiding the driven member 4 to a transmission position, and a connection unit which relatively moves along the guide unit Sa. When the rotary member 3 is rotated to one side by drive power of the driving unit 2, the driven member 4 rotates around the axis X and moves in the axis X direction toward the winding member 6 and moves to the transmission position, the winding member 6 is rotated and a long member 5 is driven by rotation of the driven member 4 at the transmission position.SELECTED DRAWING: Figure 1

Description

The present invention relates to a drive device.

For example, Patent Document 1 discloses a drive device including an electromagnetic clutch mechanism. The drive is housed in a housing with a housing, an armature rotatably supported relative to the housing, and rotors and coils rotatably supported relative to the housing facing the armature. It is equipped with a clutch mechanism.

The drive device of Patent Document 1 frictions the armature and the rotor so that the power can be transmitted between the armature and the rotor by the electromagnetic attraction generated between the armature and the rotor when the coil is energized. It is matched.

JP-A-2007-46622

However, in the case of a drive device provided with an electromagnetic clutch mechanism as in Patent Document 1, since it is necessary to energize the coil when operating the electromagnetic clutch mechanism, the power consumption during driving of the drive device increases. Further, in the case of a drive device as in Patent Document 1, the number of parts using a metal material such as a coil winding portion and an armature increases, and the weight of the entire drive device increases.

An object of the present invention is to provide a drive device capable of reducing power consumption without increasing power consumption.

The drive device of the present invention includes a drive unit, a rotating member that rotates about an axis by the driving force of the drive unit, a driven member that can engage with the rotating member in the axial direction, and a long length that operates an operation target. A drive device including a winding member around which the member is wound, and the driven member rotates with the rotation of the rotating member due to engagement with the rotating member, and the winding member is said to have the same winding member. The driven member is provided so as to be rotatable around an axis according to the rotation of the driven member by transmitting a rotational force from the driven member, and the driven member can move relative to the winding member in the axial direction and is movable in the axial direction. And the transmission position where the rotational force of the driven member can be transmitted to the winding member by moving to the winding member side and the rotation of the driven member to the winding member away from the winding member in the axial direction. The driving device moves between the non-transmission position where the force is not transmitted, and the driving device is driven so that the driven member can rotate coaxially with the driven member urging member that urges the driven member toward the non-transmission position side. An axial movement control member connected to the member, a movement mechanism provided between the driven member and the axial movement control member, and moving the driven member axially toward the winding member, and the above. The shaft is provided between the driven member and the axial movement control member, and includes a free fitting mechanism that allows the driven member and the axial movement control member to transition between an engaged state and a relative movement allowed state. The directional movement control member has a load portion that applies a load to the rotation of the axial movement control member around an axis, and the movement mechanism is provided on one of the driven member and the axial movement control member. The rotating member has a guide portion that guides the driven member to the transmission position, and a connecting portion that is provided on the other side of the driven member and the axial movement control member and that moves relative to the guide portion. When the driven member is rotated to one side by the driving force of the driving unit, the driven member has a difference in rotation speed in rotation to one of the driven member and the axial movement control member in a relative movement allowable state of the loose fitting mechanism. By relatively moving the connecting portion along the guide portion, the connecting portion rotates in the axial direction and moves in the axial direction toward the winding member to move to the transmission position, and the connection portion is located at the transmission position. The rotation of the driven member causes the take-up member to rotate and drive the long member.

According to the drive device of the present invention, the power consumption does not increase and the weight can be reduced.

It is an exploded perspective view of the drive device of one Embodiment of this invention. It is a top view which cut out a part of the case of the drive device of FIG. FIG. 2 is a cross-sectional view taken along the line III-III of FIG. It is the schematic which shows the seat operation apparatus to which the drive apparatus of FIG. 1 is applied. It is a figure which shows the state which the driven member is attached to the rotating member in the drive device of FIG. It is a figure which shows the state which the axial movement control member is attached to the driven member in the drive device of FIG. It is a schematic diagram of the drive device in the state where the driven member is located in the non-transmission position. It is a schematic diagram of the drive device which shows the state until the driven member moves from a non-transmission position to a transmission position. It is a schematic diagram of the drive device in the state where the driven member is located at the transmission position.

Hereinafter, the driving device according to the embodiment of the present invention will be described with reference to the drawings. The embodiments shown below are merely examples, and the driving device of the present invention is not limited to the following embodiments.

As shown in FIGS. 1 to 3, the drive device 1 of the present embodiment includes a drive unit 2, a rotating member 3 that rotates about an axis by the driving force of the drive unit 2, and a rotating member 3 and an axial direction. It includes an engageable driven member 4 and a winding member 6 around which a long member 5 for operating an operation target P (see FIG. 4) is wound. Further, in the present embodiment, the drive device 1 further includes a case C for accommodating components of the drive device 1, such as a rotating member 3, a driven member 4, a winding member 6, a driven member urging member 7, and an axial direction. It includes a movement control member 8.

Although the details will be described later, in the drive device 1 of the present embodiment, the rotating member 3 is rotated by driving the drive unit 2. When the rotating member 3 rotates in one direction, the driven member 4 rotates and moves toward the winding member 6. As a result, the rotation of the driven member 4 is transmitted to the winding member 6, the winding member 6 rotates, and the long member 5 is wound around the winding member 6, so that the operation target P is operated.

As shown in FIG. 4, the drive device 1 is applied to, for example, a seat operating device D for switching the reclining state of the seat ST of a vehicle and adjusting the position of the seat ST in the front-rear direction as an application example. Specifically, the seat operation device D has a drive device 1, an operation unit OP for driving the drive device 1, and an operation target P capable of operating the seat ST. In the present embodiment, for example, when an operation unit OP such as an operation button is operated, the drive device 1 is driven and the long member 5 is operated. When the long member 5 is operated, the operation target P such as the lever to which the end of the long member 5 is connected operates, the lock of the seat ST by the latch mechanism or the like is released, and the seat ST is operated. It will be possible.

The application of the drive device 1 is not particularly limited as long as one of the operations and movements of the operation target P can be operated by the long member 5 when the drive device 1 is driven. The operation target P of the drive device 1 is not particularly limited as long as it can be directly or indirectly operated by the long member 5.

The drive unit 2 generates a driving force that rotates the rotating member 3 around the axis X (see FIG. 1). The drive unit 2 is directly or indirectly connected to the rotating member 3, transmits the driving force of the drive unit 2 to the rotating member 3, and rotates the rotating member 3 around the axis X.

In the present embodiment, the drive unit 2 has a motor 21 and a worm gear 22 that is rotated by the driving force of the motor 21, as shown in FIGS. 1 and 2. In the present embodiment, the worm gear 22 extends in a direction perpendicular to the shaft X, the teeth of the worm gear 22 mesh with the teeth of the rotating member 3, and the rotating member 3 rotates around the shaft X. The shape and structure of the drive unit 2 are not particularly limited as long as the rotating member 3 can be rotated around the axis X. For example, the drive unit may have a spur gear, a bevel gear, or a rack member having teeth that mesh with the rotating member 3 instead of the worm gear 22.

In this embodiment, the drive unit 2 is connected to the case C as shown in FIGS. 1 and 2. As described above, the case C houses the components of the drive device 1. In the present embodiment, the case C has a case main body C1 having a storage recess and a lid portion C2 for closing the storage recess of the case body C1. The shape and structure of the case C are not particularly limited as long as each component of the drive device 1 can be accommodated. In the present embodiment, the case C includes an axial movement control member 8, a driven member 4, a driven member urging member 7, a rotating member 3, a winding member 6, and a winding member urging member 9 described later (see FIG. 1). Are sequentially housed in the axis X direction. In the present embodiment, the axial movement control member 8, the driven member 4, the rotating member 3, and the winding member 6 are provided so as to be rotatable around the axis X in the case C. The position and order in which the components of the drive device 1 are arranged are not limited to the position and order of the present embodiment as long as they have the effects described later.

The rotating member 3 is rotated by the driving force of the driving unit 2, and in order to rotate the driven member 4, the rotation of the rotating member 3 is transmitted to the driven member 4. In this embodiment, the rotating member 3 rotates about an axis X in the case C. Specifically, the rotating member 3 is rotatably supported by the shaft member 81 provided on the axial movement control member 8 (see FIG. 3), and rotates with respect to the shaft member 81.

The position of the rotating member 3 in the axis X direction is not particularly limited, but in the present embodiment, the rotating member 3 is provided between the winding member 6 and the driven member 4 in the axis X direction. Further, the structure of the rotating member 3 is not particularly limited as long as it can be rotated by the driving force of the driving unit 2 and the rotation of the rotating member 3 can be transmitted to the driven member 4 in order to rotate the driven member 4. In the present embodiment, as shown in FIGS. 1 and 5, the rotating member 3 is driven by a rotating member side base portion 31 and a connecting portion 32 which is directly or indirectly engaged with and connected to the driving portion 2. It has a rotating member-side engaged portion 33 that directly or indirectly engages with the member 4.

In this embodiment, the rotating member side base portion 31 is formed in a disk shape extending substantially perpendicular to the axis X, as shown in FIGS. 1 and 5. The rotating member side base portion 31 has a shaft insertion hole 31a through which the shaft member 81 is inserted in the central portion of the rotating member side base portion 31. The connecting unit 32 connects the driving unit 2 and the rotating member 3 by directly or indirectly engaging with the driving unit 2, and enables the rotating member 3 to rotate when the driving unit 2 is driven. .. The shape and structure of the connecting portion 32 are not particularly limited as long as they can be engaged with the driving unit 2, and are appropriately changed depending on the position where the driving unit 2 is provided and the structure of the driving unit 2. In the present embodiment, the connecting portion 32 is a tooth portion formed on the outer periphery of the rotating member 3 that engages with the worm gear 22 of the driving unit 2.

The rotating member side engaged portion 33 engages with the driven member 4 so that when the rotating member 3 rotates in one direction around the axis X, the driven member 4 can be rotated by the rotation of the rotating member 3. It is a part. The position and structure of the engaged portion 33 on the rotating member side are not particularly limited as long as they can be engaged with the driven member 4 so that the driven member 4 can be rotated. In the present embodiment, the rotating member side engaged portion 33 engages with the driven member 4 in the direction around the axis X by one rotation of the rotating member 3, and does not engage in the other rotation of the rotating member 3. It is configured. Specifically, as shown in FIG. 5, the rotating member side engaged portion 33 is formed when the rotating member 3 rotates among the edges of the through hole 31b formed in the rotating member side base portion 31. This is a portion where the engaging portion 42 of the driven member 4, which will be described later, engages in the direction around the axis X. The shape and structure of the engaged portion 33 on the rotating member side is not particularly limited as long as it can be engaged with the driven member 4, and the contact portion with the engaging portion of the driven member 4 is brought into contact with one of the rotating members 3. It can be a tangent. In the present embodiment, a plurality of the rotating member side engaged portions 33 are provided on the rotating member side base portion 31 in the direction around the axis X (six in the present embodiment) according to the number of engaging portions 42 of the driven member 4. However, the position and number of the engaging portions 33 on the rotating member side are not particularly limited.

The driven member 4 can be engaged with the rotating member 3 in the direction around the axis X, and rotates with the rotation of the rotating member 3 by engaging with the rotating member 3. In the present embodiment, the driven member 4 is provided coaxially with the rotating member 3 and is configured to rotate in the same direction as the rotating member 3. Further, the driven member 4 can move relative to the winding member 6 in the axis X direction. The driven member 4 moves to the winding member 6 side in the axis X direction and can transmit the rotational force of the driven member 4 to the winding member 6 (see FIG. 9), and the winding member 6 in the axis X direction. It moves away from the winding member 6 to a non-transmission position (see FIG. 7) where the rotational force of the driven member 4 is not transmitted. The driven member 4 located at the transmission position can be engaged with the winding member 6 in the direction around the shaft X, and the winding member 6 can be rotated around the shaft X by rotating the driven member 4. As for the transmission position of the driven member 4, the driven member 4 moves toward the winding member 6 with respect to the non-transmission position of the driven member 4, and the rotational force of the driven member 4 in the direction around the axis X is applied to the winding member 6. This is the position of the driven member 4 that can be transmitted in the axis X direction. In the non-transmission position of the driven member 4, the driven member 4 moves in the direction away from the winding member 6 with respect to the transmission position of the driven member 4, and the rotational force of the driven member 4 in the direction around the axis X is the winding member. This is the position of the driven member 4 that is not transmitted to 6 in the axis X direction. In the present embodiment, the driven member 4 moves relative to the winding member 6 in the axial X direction by the axial movement control member 8 described later, and moves between the transmission position and the non-transmission position. .. In the present specification, the rotation direction of the driven member 4 when the driven member 4 moves from the non-transmission position to the transmission position is referred to as the first direction D1, and the rotation direction in the direction opposite to the first direction D1 is the second direction. Called D2. Similarly, the rotation direction of the rotating member 3, the winding member 6, and the axial movement control member 8 when the driven member 4 rotates in the first direction D1 is also called the first direction D1, and is in the direction opposite to the first direction D1. The direction of rotation of is called the second direction D2.

The shape and structure of the driven member 4 rotate by engaging with the rotating member 3, can move relative to the winding member 6 in the axis X direction, and when in the transmission position, the winding member 6 has a rotational force. Is not particularly limited as long as it can be transmitted. In the present embodiment, as shown in FIGS. 1 and 6, the driven member 4 includes a base 41 and an engaging portion 42 extending from the base 41 in the axis X direction and engaging with the rotating member 3 in the axial X peripheral direction. have.

In the present embodiment, the base 41 is formed in a disk shape, and a plurality of (six in the present embodiment) engaging portions 42 extend in the axis X direction from the peripheral edge of the base 41. At the central portion of the base portion 41, an accommodating portion 411 in which the axial movement control member 8 described later is arranged is formed. In the present embodiment, the accommodating portion 411 is a through hole penetrating the base portion 41 in the axis X direction, and as shown in FIG. 6, the circular portion 411a and the circular portion 411a are partially radially outward from the outer circumference. It has a widened opening 411b.

In the engaging portion 42, when the driven member 4 moves to the transmission position, the engaging portion 42 can engage with the winding member 6 in the direction around the axis X, and the driven member 4 at the transmitting position rotates. Occasionally, the take-up member 6 is rotated. In the present embodiment, the engaging portion 42 does not engage with the winding member 6 when it is in the non-transmission position, and the shaft X has a predetermined length so as to engage with the winding member 6 when it is in the transmitting position. It extends in the direction.

In the present embodiment, the engaging portion 42 is configured to engage the rotating member 3 in the direction around the axis X in addition to the winding member 6. The engaging portion 42 is engaged with the rotating member 3 so that the engaging portion 42 can move relative to the rotating member 3 in the axis X direction. In the present embodiment, as described above, the rotating member 3 has a through hole 31b having a rotating member side engaged portion 33, and the engaging portion 42 moves in the axis X direction with respect to the inner surface of the through hole 31b. It is inserted into the through hole 31b so that it can be inserted (see FIG. 5). As a result, in the engaging portion 42, when the driven member 4 moves toward the winding member 6 in the axis X direction, the engaging portion 42 and the rotating member side engaged portion 33 engage in the axial X circumferential direction. At the same time, the tip of the engaging portion 42 protrudes from the through hole 31b (see FIGS. 8 and 9). As a result, the winding member 6 can be rotated by engaging with the wound member-side engaged portion 62 of the winding member 6 described later in the direction around the axis X.

The shape of the engaging portion 42 is not particularly limited as long as it can be engaged with the winding member 6 in the direction around the axis X. The engaging portion 42 has a sliding portion 42c that slides on the wound member side engaged portion 62 described later at the end portion on the winding member 6 side in the axis X direction. The engaging portion 42 of the driven member 4 rotates the winding member 6 by engaging with the winding member 6 by rotating to one side, and slides with the winding member 6 by rotating to the other side to wind the winding member 4. Allows the taking member 6 to rotate relative to the driven member 4. In the present embodiment, as shown in FIGS. 1 and 5, the engaging portion 42 has a substantially trapezoidal cross section perpendicular to the axis X direction, and is similarly formed into a substantially trapezoidal shape. The side edge 42b of the engaging portion 42 on the second direction D2 side and the rotating member side engaged portion 33 located on the second direction D2 side of the inner surface of the through hole 31b are inserted into the through hole 31b. The driven member 4 is provided so as to face each other in the rotation direction.

Further, in the present embodiment, the engaging portion 42 is in the axis X direction from the base 41 toward the side edge 42b on the second direction D2 side in the direction around the axis X toward the side edge 42a on the first direction D1 side. It is tilted so that the height is high (see Fig. 1 etc.). In this case, the engaging portion 42 moves in the axis X direction while rotating in the first direction D1, but the side edge 42a of the engaging portion 42 is wound with a slight movement as shown in FIG. It can be engaged with the wound member side engaged portion 62 of the member 6. On the other hand, since the side edge 42b of the engaging portion 42 has a low protrusion height from the base portion 41, it interferes with the wound member side engaged portion 62 different from the winding member side engaged portion 62 to be engaged. Is suppressed. In the present embodiment, the sliding portion 42c is provided on the engaging portion 42 as an inclined surface.

Further, in the present embodiment, each engaging portion 42 separately has a first engaging portion that engages only with the winding member 6 and a second engaging portion that engages only with the rotating member 3. However, the driven member may be configured to engage both the take-up member 6 and the rotating member 3.

In the present embodiment, as shown in FIGS. 1 and 3, the drive device 1 has a driven member urging member 7 that urges the driven member 4 toward the non-transmission position side. The driven member urging member 7 urges the driven member 4 toward the non-transmission position side when the rotating member 3 rotates in the second direction D2, and assists the driven member 4 to move to the non-transmission position.

In the present embodiment, the driven member urging member 7 is provided between the rotating member 3 and the driven member 4 in the axis X direction, and urges the driven member 4 toward the non-transmission position side. Specifically, the driven member urging member 7 is a coil spring provided between the rotating member side base portion 31 and the base portion 41 of the driven member 4. The arrangement position of the driven member urging member 7 is not particularly limited as long as the driven member 4 can be urged to the non-transmission position side. For example, in FIG. 1, it is provided between the bottom portion of the case C (the lower surface of the case body C1 in FIG. 1) and the base portion 41 of the driven member 4, and the driven member 4 is separated from the winding member 6. By pulling, the driven member 4 may be urged to the non-transmission position side. Further, the driven member urging member 7 is not limited to the coil spring, and may be another urging member such as a leaf spring capable of urging the driven member 4 toward the non-transmission position side.

The take-up member 6 is a member around which a long member 5 for operating the operation target P is wound. The take-up member 6 is provided so as to be rotatable around the axis X in accordance with the rotation of the driven member 4 by transmitting the rotational force from the driven member 4. In the present embodiment, the winding member 6 is long when the long member 5 is wound in the first direction D1 due to the transmission of the rotational force from the driven member 4 and is rotated in the second direction D2. It is configured to feed out the scale member 5. As shown in FIG. 3, the take-up member 6 is provided so as to rotate about the axis X with respect to the case C. In the present embodiment, the winding member 6 is configured to rotate about the shaft member 81 as an axis.

The long member 5 wound around the winding member 6 is not particularly limited as long as the operation target P can be operated. In the present embodiment, the long member 5 has a cable 51, specifically, an inner cable 51 of a control cable. In the present embodiment, as shown in FIGS. 2 and 4, one end 51a of the cable 51 is attached to the winding member 6, and the other end 51b is attached to the operation target P side. The other end 51b of the cable 51 may be directly connected to the operation target P, or indirectly via a relay mechanism or the like for relay connection between the other end 51b of the cable 51 and the operation target P. It may be connected. In the present embodiment, the cable 51 is derived from the case C of the drive device 1 and extends toward the operation target P along a predetermined routing path. In the present embodiment, as shown in FIGS. 2 and 4, the cable 51 is inserted into the outer casing 52 and is routed along a predetermined routing route.

In the present embodiment, the take-up member 6 has a take-up portion 61a for taking up the long member 5 and is rotatably provided around the shaft X, as shown in FIGS. 1 and 3. It has a side base portion 61 and a winding member side engaged portion 62 that engages with the driven member 4.

The take-up member side base 61 is a portion where the long member 5 is taken up and rotated around the axis X to take up and take out the long member 5. The shape and structure of the take-up member side base 61 are not particularly limited as long as the long member 5 can be taken up and unwound by rotating around the axis X. The take-up member side base 61 may be, for example, a drive pulley or a drum capable of winding the long member 5 a plurality of times, as shown in FIG. The take-up portion 61a is a portion provided on the outer periphery of the take-up member side base portion 61 where the long member 5 is taken up. The shape and structure of the winding portion 61a are not particularly limited, but for example, the long member 5 can be a winding groove that can be wound. As shown in FIG. 2, the take-up member side base 61 has a cable connecting portion 61b to which one end 51a of the cable 51 is connected to one end surface.

In the present embodiment, the take-up member 6 is urged in the direction around the axis X by the take-up member urging member 9, as shown in FIGS. 1 and 3. Specifically, the take-up member 6 is urged by the take-up member urging member 9 in the second direction D2. As a result, when the winding member 6 is rotated in the first direction D1 by the transmission of the rotational force from the driven member 4, and then the transmission of the rotational force from the driven member 4 is released, the winding member urging member 9 Due to the urging force of, the take-up member 6 rotates in the second direction D2 and returns to the initial position. In the present embodiment, the take-up member urging member 9 urges the take-up member 6 in the direction of feeding out the long member 5. As a result, when the winding member 6 is rotated in the first direction D1 by the driven member 4, the long member 5 is wound by the winding member 6, and then the transmission of the rotational force from the driven member 4 is released. In addition, the take-up member urging member 9 rotates the take-up member 6 in the second direction D2, and the long member 5 is unwound from the take-up member 6. In the winding member urging member 9, when the first direction D1 is the direction in which the long member 5 is unwound, the winding member 6 may be urged in the direction in which the long member 5 is wound.

In the present embodiment, the winding member urging member 9 is a torsion spring housed in a recess 61c formed on one end surface of the winding member side base portion 61. One end of the winding member urging member 9 shown as a torsion spring is connected to the lid C2 of the case C, and the other end is connected to the winding member 6 to urge the winding member 6 in the direction around the axis X. ing. The shape and structure of the take-up member urging member 9 are not particularly limited as long as the take-up member 6 can be urged in the direction around the axis X. For example, the winding member urging member 9 may be another urging member such as a spiral spring.

The wound member side engaged portion 62 is configured to engage with the driven member 4 so that the winding member 6 can rotate by the rotation of the driven member 4. The winding member side engaged portion 62 is provided at a position where it can engage with the driven member 4 at the transmission position in the direction around the axis X. The wound member side engaged portion 62 engages so that when the driven member 4 rotates in the first direction D1, the rotational force of the driven member 4 can be transmitted to the winding member 6. The shape and structure of the wound member side engaged portion 62 are not particularly limited as long as they can be engaged with the driven member 4 so that the winding member 6 can rotate by the rotation of the driven member 4. In the present embodiment, as shown in FIG. 1, the winding member side engaged portion 62 projects radially outward from the peripheral edge of the end surface of the winding member side base portion 61 on the driven member 4 side. In the present embodiment, a plurality of engaged portions 62 on the winding member side are provided in the circumferential direction (six in the present embodiment), but the number and arrangement of the engaged portions 62 on the winding member side are particularly limited. Not done. The wound member side engaged portion 62 faces the winding member 6 in the rotational direction, and one side of the engaged portion engages with the one side side portion 42a of the engaging portion 42 provided on the driven member 4. It has a sliding portion 42c of the engaging portion 42 and a sliding portion slidable on the other side. The engaging portion that engages with the side portion 42a on one side is specifically a side portion that faces the winding member 6 in the rotational direction. Specifically, the sliding portion 42c and the sliding portion slidable are the ends of the wound member side engaged portion 62 on the driven member 4 side in the axis X direction, and the side portion 42a on one side. Includes a portion located on the opposite side of the engaging portion that engages with.

Further, as shown in FIG. 2, the take-up member 6 has a regulation unit 63 that comes into contact with the case C of the drive device 1 and regulates the rotation angle of the take-up member 6 within a predetermined range. The case C has a contact portion A that comes into contact with the regulation portion 63. The regulating unit 63 regulates the rotation angle of the winding member 6 within a predetermined range by abutting on the contact portion A when the winding member 6 is rotated at a predetermined rotation angle, and is long. The winding amount of the member 5 is regulated within a predetermined range. As a result, the amount of movement of the long member 5 can be made accurate. The regulating portion 63 is provided on the winding member 6, changes its position in the direction around the axis X as the winding member 6 rotates, and is provided at a position corresponding to a desired rotation angle of the winding member 6. The rotation angle of the take-up member 6 is regulated by abutting with the abutting portion A. In the present embodiment, the contact portion A is a first contact portion A1 that comes into contact with the regulation portion 63 in the initial state (see FIG. 2), and when the winding member 6 rotates in the first direction D1 by a predetermined amount ( (Refer to the two-dot chain line in FIG. 2) It has a second contact portion A2 that abuts. The first contact portion A1 comes into contact with the regulating portion 63 when the winding member 6 receives a force in the second direction D2 due to the urging force of the winding member urging member 9. On the other hand, the second contact portion A2 comes into contact with the regulation portion 63 when the winding member 6 is rotated in the first direction D1 by a predetermined amount by the driven member 4.

In the present embodiment, as shown in FIG. 1, the regulating portion 63 is a protruding portion protruding from one end surface of the winding member side base portion 61, and the contact portion A is wound from the lid portion C2 of the case C. It is a protrusion that protrudes toward one end surface of the taking member side base 61. The shapes and structures of the regulating portion 63 and the abutting portion A are not particularly limited as long as they can abut against each other and regulate the rotation angle of the winding member 6 within a predetermined range. For example, the regulating portion may be a recess, the abutting portion may be a protrusion, the regulating portion may be a protrusion, and the abutting portion may be a recess.

In this embodiment, as shown in FIGS. 1 and 2, the regulation portion 63 and / or the contact portion A has a cushioning member DP. The cushioning member DP can suppress abnormal noise at the time of contact between the regulating portion 63 and the contact portion A, and can suppress abnormal noise at the time of driving the drive device 1. The cushioning member DP can be made of a flexible material such as rubber, which can reduce abnormal noise at the time of contact. The cushioning member DP is provided at one end and the other end of the regulation portion 63 in the direction around the axis X, and suppresses abnormal noise with respect to rotation in both directions. The buffer member DP may not be provided in the regulation portion 63, but may be provided in each of the first contact portion A1 and the second contact portion A2.

Further, as shown in FIGS. 7 to 9, the drive device 1 has an axial movement control member 8 connected to the driven member 4 so as to be capable of coaxial relative rotation, and the driven member 4 and the axial movement control. A moving mechanism S provided between the member 8 and moving the driven member 4 toward the winding member 6 in the axial X direction, and a moving mechanism S provided between the driven member 4 and the axial movement control member 8 are provided. 4 and the axial movement control member 8 have a loose fitting mechanism L capable of transitioning between an engaged state and a relative movement allowable state.

Although the details will be described later, in the driven member 4, the driven member 4 is rotated relative to the axial movement control member 8 by the moving mechanism S and the loose fitting mechanism L, as shown in FIGS. 7 to 9. It moves to the transmission position side against the urging force of the driven member urging member 7. When the driven member 4 moves to the transmission position, the driven member 4 and the winding member 6 engage with each other to rotate the winding member 6 in the same direction as the driven member 4 (first direction D1). The relative rotation between the driven member 4 and the axial movement control member 8 is limited to the one in which the axial movement control member 8 rotates at a speed lower than the rotation speed of the driven member 4 when the driven member 4 rotates. There is also a case where the axial movement control member 8 does not rotate and only the driven member 4 rotates.

The axial movement control member 8 controls the movement of the driven member 4 in the axial X direction. Specifically, as will be described later, the axial movement control member 8 winds the driven member 4 by relatively moving the driven member 4 with respect to the axial movement control member 8 in the axial X circumferential direction and the axial X direction. It is connected to the take member 6.

In the present embodiment, the axial movement control member 8 is configured to rotate around the axis X, similarly to the driven member 4. As shown in FIG. 3, the axial movement control member 8 is supported by a case C accommodating the driven member 4 so as to be rotatable around an axis. In the present embodiment, as shown in FIG. 3, the axial movement control member 8 includes a shaft member 81 attached to the case C, a rotating portion 82 rotatably provided with respect to the shaft member 81, and an axial direction. It has a load unit 83 that applies a load to the rotation of the movement control member 8 around the axis X.

In this embodiment, the shaft member 81 is fixed to the case C. As shown in FIG. 3, the shaft member 81 also functions as a rotating shaft of the rotating member 3 and the winding member 6.

The rotating portion 82 is configured to be rotatable around the axis X. In the present embodiment, the rotating portion 82 is configured to be rotatable with respect to the shaft member 81. In the present embodiment, the rotating portion 82 is arranged in the accommodating portion 411 provided in the center of the base portion 41 of the driven member 4. In the present embodiment, the rotating portion 82 has a tubular portion 821 arranged outside the shaft member 81, and a plurality of protruding portions PR provided on the outer periphery of the tubular portion 821, which will be described later.

The load unit 83 applies a load that suppresses the rotation of the driven member 4 in the rotation direction with respect to the rotation direction. By applying a load to the driven member 4, the load unit 83 causes the driven member 4 to rotate relative to the axial movement control member 8 when the driven member 4 starts to rotate. In the present embodiment, the load portion 83 is provided between the shaft member 81 and the rotating portion 82, and a load is applied to the driven member 4 via the rotating portion 82. In the present embodiment, the load unit 83 urges the rotating unit 82 in the second direction D2.

The structure of the load unit 83 is not particularly limited as long as a load can be applied to the movement of the driven member 4 in the rotation direction. In the present embodiment, the load unit 83 has a spring SP capable of suppressing the rotation of the axial movement control member 8 by engaging with the case C. A braking force for the rotation of the axial movement control member 8 is applied by the urging force of the spring SP, and the driven member 4 moves in the axial X direction by the movement mechanism S described later. As the spring SP, a so-called brake spring can be used. Since the load unit 83 is provided coaxially with the rotating unit 82 in the drive device, space can be saved.

In the present embodiment, the spring SP is a torsion spring provided between the shaft member 81 and the rotating portion 82, and is indirectly engaged with the case C via the shaft member 81. The spring SP has an engaging portion that engages with the case C inside the rotating portion 82 so as not to rotate relative to each other. One end of the spring SP is engaged with the shaft member 81 engaged with the case C, and the other end is engaged with the rotating portion 82. The spring SP may be directly engaged with the case C. Further, the load unit 83 is not limited to the load by the spring as long as it can give a load for suppressing the rotation of the driven member 4 in the rotation direction. For example, the load portion may have another structure such as a rotary damper that applies a braking force against rotation or another spring.

In the present embodiment, the axial movement control member 8 is arranged in the central accommodating portion 411 of the driven member 4, but if relative rotation coaxial with the driven member 4 is possible, the axial movement control member 8 is provided. The position of the 8 with respect to the driven member 4 is not particularly limited.

Between the axial movement control member 8 and the driven member 4, as shown in FIGS. 7 to 9, a moving mechanism S for moving the driven member 4 in the axial X direction toward the winding member 6 and a driven member 4 A loose fitting mechanism L is provided so that the member 4 and the axial movement control member 8 can transition between an engaged state and a relative movement allowable state.

The moving mechanism S moves the driven member 4 in the axial X direction toward the winding member 6 in order to engage the driven member 4 with the winding member 6. As shown in FIGS. 7 to 9, the moving mechanism S is provided on one of the driven member 4 and the axial movement control member 8, and the guide portion Sa that guides the driven member 4 to the transmission position, the driven member 4, and the moving mechanism S. It is provided on the other side of the axial movement control member 8 and has a connecting portion Sb that moves relative to the guide portion Sa. In the present embodiment, the guide portion Sa is provided on the axial movement control member 8 and the connecting portion Sb is provided on the driven member 4, but the guide portion Sa is provided on the driven member 4 and the connecting portion Sb is provided. It may be provided on the axial movement control member 8.

When the rotating member 3 rotates in the first direction D1 and the driven member 4 rotates in the first direction D1, the guide portion Sa is connected to the connecting portion Sb and moves to the first direction D1 of the driven member 4. The force acting between the guide portion Sa and the connecting portion Sb during rotation is converted into a force by which the driven member 4 moves toward the winding member 6, and the driven member 4 is moved toward the transmission position in the axis X direction. Move. As shown in FIGS. 7 and 8, after the driven member 4 rotates and the connecting portion Sb contacts and connects to the guide portion Sa, the driven member Sb is guided along the guide portion Sa and the driven member. 4 and the axial movement control member 8 rotate relative to each other to move the driven member 4 toward the winding member 8.

In the present embodiment, the guide portion Sa of the movement mechanism S is provided on the axial movement control member 8. Specifically, the guide portion Sa is provided on the protrusion PR extending in the axis X direction in the rotating portion 82. The guide portion Sa may be provided on the driven member 4. For example, a protrusion having a guide portion extending from the driven member 4 toward the axial movement control member 8 may be provided. In the present embodiment, the protrusions PR include an axial protrusion PR1 having a guide portion Sa and a fitting protrusion PR2 that fits into a free fitting mechanism opening described later, as shown in FIGS. 7 to 9. have. In the present embodiment, the axial protrusion PR1 and the fitting protrusion PR2 are provided adjacent to each other in the axial direction and integrally provided, but are separately provided separately in the axial X peripheral direction. You may be.

In the present embodiment, the guide portion Sa of the moving mechanism S is the inclined surface Sa1 of the axial protrusion PR1. The inclined surface Sa1 of the axial protrusion PR1 is, for example, when the driven member 4 rotates relative to the axial movement control member 8 due to the driven member 4 rotating relatively faster than the axial movement control member 8. In addition, the driven member 4 may be inclined toward the winding member 6 in the axial X direction toward the transmission position by guiding the connecting portion Sb to the inclined surface Sa1. In the present embodiment, the inclined surface Sa1 provided on the axial protrusion PR1 of the axial movement control member 8 is inclined so as to be closer to the winding member 6 as it advances in the first direction D1 (FIG. 1). , See FIGS. 7-9). When a guide portion (inclined surface) protruding toward the axial movement control member 8 is provided on the driven member 4 side, for example, the surface of the inclined surface of the inclined surface moves as it advances in the first direction D1. The member 4 may be inclined so that the height with respect to the base 41 is low.

The height of the guide portion Sa in the axis X direction may be configured so that the driven member 4 and the winding member 6 can be engaged with each other in the axis X direction.

The connecting portion Sb is connected in contact with the guide portion Sa, and when the driven member 4 rotates in the first direction D1, the connecting portion Sb moves relative to the guide portion Sa to wind the driven member 4. Move toward the transmission position toward 6. As a result, the driven member 4 engages with the winding member 6 and transmits the rotation of the driven member 4 to the winding member 6.

The connecting portion Sb is provided on the axial movement control member 8 when the guide portion Sa is provided on the driven member 4, and is provided on the driven member 8 when the guide portion Sa is provided on the driven member 8. It is provided in 4. In the present embodiment, the connecting portion Sb is provided on the driven member 4. In the present embodiment, as shown in FIGS. 7 to 9, the connecting portion Sb that moves relative to the guide portion Sa is the edge E of the opening 411b into which the axial protrusion PR1 is inserted.

In the present embodiment, the driven member 4 has an accommodating portion 411 formed as a through hole in the central portion passing through the shaft X, and the accommodating portion 411 has a rotating portion 82 of the axial movement control member 8. Is housed. As shown in FIG. 6, the accommodating portion 411 has a circular portion 411a into which the tubular portion 821 of the rotating portion 82 is inserted, and an opening in which the axial protrusion PR1 widened outward in the radial direction of the circular portion 411a is inserted. It has 411b and. A plurality of openings 411b are provided in the direction around the axis X according to the number of axial protrusions PR1.

When the connecting portion is provided on the axial movement control member 8 side, the connecting portion is the edge of the opening provided in the axial movement control member 8 into which the axial protrusion protruding from the driven member 4 is inserted. Can be a department. The structure of the connecting portion Sb is not particularly limited as long as the connecting portion Sb can move relative to the guide portion Sa by coming into contact with the guide portion Sa and rotating the driven member 4 in the first direction D1. For example, both end faces of the driven member 4 and the axial movement control member 8 facing each other are provided with protrusions that engage with each other in the direction around the axis X, and a guide portion Sa is provided on one of the protrusions and the other. A connecting portion Sb may be provided at the protrusion.

The loose fitting mechanism L is a mechanism that enables the driven member 4 and the axial movement control member 8 to transition between the engaged state and the relative movement allowable state. In the relative movement allowable state, as shown in FIGS. 7 and 8, the driven member 4 and the axial movement control member 8 are brought into contact with each other due to the difference in rotational speed between the driven member 4 and the axial movement control member 8. It is in a state of relative rotation. Further, in the engaged state, as shown in FIG. 9, the driven member 4 and the axial movement control member 8 are engaged in the rotational direction, so that the driven member 4 and the axial movement control member 8 are engaged with each other. Relative rotation is suppressed, and the driven member 4 and the axial movement control member 8 are interlocked and rotate in the same direction.

In the loose fitting mechanism L, when the driven member 4 and the axial movement control member 8 are in the relative movement allowable state, the connecting portion Sb is guided to the guide portion Sa by the moving mechanism S as shown in FIGS. 7 and 8. Will be done. When the driven member 4 moves toward the winding member 6 by the moving mechanism S and moves to the transmission position in the axis X direction, the driven member 4 and the axial movement control member 8 are engaged in the loose fitting mechanism L. It becomes. As a result, the axial movement control member 8 can rotate in the first direction D1 in conjunction with the rotation of the driven member 4. In the present embodiment, the driven member 4 that has moved to the transmission position rotates together with the winding member 6 from the state shown in FIG. 9, the long member 5 is wound, and the operation target P is operated.

In the present embodiment, the loose fitting mechanism L has a fitting protrusion PR2 protruding in the axis X direction and a free fitting mechanism opening for accommodating the fitting protrusion PR2 in the space. In the present embodiment, the free fitting mechanism opening is integrally formed with the opening 411b into which the axial protrusion PR1 is inserted.

As shown in FIGS. 7 and 8, the fitting protrusion PR2 is provided so that the driven member 4 and the axial movement control member 8 can rotate relative to each other while the driven member 4 rotates at a predetermined rotation angle. The free fitting state is set in the space inside the opening of the free fitting mechanism. Further, the fitting protrusion PR2 has a loose fitting mechanism as shown in FIG. 9 after the driven member 4 and the axial movement control member 8 are in a relative movement allowable state and the driven member 4 is rotated by a predetermined angle. Rotatively engages at least part of the opening. When at least a part of the fitting protrusion PR2 and the opening of the loose fitting mechanism are engaged in the rotational direction, the relative rotation between the driven member 4 and the axial movement control member 8 is suppressed, and the driven member 4 and the axial movement are moved. The control member 8 and the control member 8 are interlocked and rotate together.

In the present embodiment, the fitting protrusion PR2 and the inner wall in the opening of the loose fitting mechanism are in surface contact with each other in an engaged state (see FIG. 9). However, the fitting protrusion PR2 and the engaging portion in the opening of the loose fitting mechanism can rotate in conjunction with each other so that the relative rotation between the driven member 4 and the axial movement control member 8 is suppressed. You just have to engage.

In the present embodiment, the fitting protrusion PR2 is provided on the axial movement control member 8, and the free fitting mechanism opening is provided on the driven member 4. The fitting protrusion PR2 may be provided on the driven member 4, and the free fitting mechanism opening may be provided on the axial movement control member 8. The shape of the fitting protrusion PR2 is not particularly limited as long as it can engage with at least a part of the opening of the loose fitting mechanism. In the present embodiment, the fitting protrusion PR2 is provided as a protrusion protruding from the outer circumference of the rotating portion 82, as shown in FIG. Further, in the present embodiment, the fitting protrusion PR2 is provided on the protrusion PR integrally with the axial protrusion PR1. The protrusion PR is inserted so as to be accommodated in the opening 411b provided in the driven member 4 by pressing the driven member 4 toward the axial movement control member 8 by the driven member urging member 7. In this embodiment, three axial protrusions PR1 and three fitting protrusions PR2 are provided apart from each other in the circumferential direction, as shown in FIG. However, the number of the axial protrusion PR1 and the fitting protrusion PR2 is not particularly limited, and may be one or a plurality of each.

If the shape of the free fitting mechanism opening can accommodate the fitting protrusion PR2, and the driven member 4 and the axial movement control member 8 can be transitioned between the engaged state and the relative movement allowed state. , Not particularly limited. In the present embodiment, the loose fitting mechanism opening is formed as an opening 411b integrally with the moving mechanism opening accommodating the axial protrusion PR1.

In the present embodiment, as described above, the drive device 1 has an axial movement control member 8 having a load portion 83, a guide portion Sa, and a connection portion Sb that moves relative to the guide portion Sa, and is a driven member. It has a moving mechanism S that moves 4 toward the winding member 6, and a loose fitting mechanism L that allows the driven member 4 and the axial movement control member 8 to transition between an engaged state and a relative movement allowable state. There is. Therefore, when the rotating member 3 is rotated in one direction (first direction D1) by the driving force of the driving unit 2, the driven member 4 controls the driven member 4 and the axial movement in the relative movement allowable state of the loose fitting mechanism L. The connection portion Sb moves relative to the guide portion Sa due to the difference in rotation speed in the rotation of the member 8 to one side. As a result, the driven member 4 rotates in the direction around the axis X and moves in the axis X direction toward the winding member 6 to move to the transmission position. Then, the rotation of the driven member 4 at the transmission position causes the winding member 6 to rotate and drive the long member 5. As described above, the drive device 1 of the present embodiment moves the driven member 4 between the transmission position where the rotational force is transmitted to the winding member 6 and the non-transmission position where the rotational force is not transmitted, without using the electromagnetic clutch mechanism. Let me. When the driven member 4 moves to the transmission position, the drive device 1 can rotate the winding member 6 in conjunction with the driven member 4. Therefore, in the drive device 1 of the present embodiment, the driven member 4 and the winding member 6 are interlocked with each other by a mechanical mechanism, and the long member 5 can operate the operation target. Therefore, the drive device 1 does not need to use an electromagnet to move the driven member 4 between the transmission position and the non-transmission position, and the power consumption of the drive device 1 can be reduced. Further, the drive device 1 of the present embodiment does not require a metal member such as a coil or an armature used for an electromagnet. Therefore, the weight of the drive device 1 can be reduced.

Next, the operation of the drive device 1 of the present embodiment will be described by taking the seat operation device D as an example. The following operation is merely an example, and the present invention is not limited by the following description.

First, in order to adjust the tilt angle of the seat ST of the seat operation device D shown in FIG. 4, an operation unit OP such as an operation button is operated. When the operation unit OP is operated, the drive unit 2 of the drive device 1 is driven. Specifically, when the operation unit OP is operated, the motor 21 of the drive unit 2 rotates, and the worm gear 22 rotates. When the worm gear 22 rotates, the rotating member 3 that meshes with the worm gear 22 rotates in the first direction D1 (see FIG. 2). In the engaging portion 42 of the driven member 4 inserted into the through hole 31b of the rotating member 3, the side edge 42a of the engaging portion 42 is engaged with the engaged portion 33 on the rotating member side, so that the rotating member 3 is engaged. When rotated in the first direction D1, the driven member 4 also rotates in the first direction D1.

When the driven member 4 rotates in the first direction D1, the edge E of the opening 411b of the driven member 4 is provided in the rotating portion 82 of the axial movement control member 8, as shown in FIGS. 7 and 8. A force is applied to the axial movement control member 8 from the driven member 4 in the first direction D1 in contact with the guide portion Sa. As described above, the axial movement control unit 8 has a load unit 83, so that the rotating unit 82 is suppressed from rotating in the first direction D1, and the driven member 4 rotates the axial movement control unit 8. It rotates relative to the unit 82. At that time, as shown in FIG. 8, the edge E of the opening 411b of the driven member 4 moves along the inclined guide portion Sa of the rotating portion 82, and the driven member 4 is a driven member urging member. While contracting the driven member urging member 7 against the urging force of 7, the driven member moves toward the winding member 6 in the axis X direction.

When the driven member 4 moves in the axis X direction, as shown in FIG. 9, the tip of the engaging portion 42 of the driven member 4 can engage with the wound member side engaged portion 62 of the winding member 6. It has moved to the transmission position, and the rotation of the driven member 4 in the first direction D1 brings the winding member 6 into a state in which it can rotate in the first direction D1. At this time, the inner surface of the opening 411b of the driven member 4 is in contact with the side edge of the fitting protrusion PR2 on the second direction D2 side. Therefore, when the driven member 4 is further rotated from the state shown in FIG. 9, the driven member 4 and the rotating portion 82 of the axial movement control member 8 are first together with the driven member 4 against the urging force of the load portion 83. It can rotate in direction D1. Therefore, the rotation of the winding member 6 by the driven member 4 is not hindered, and the rotating member 3, the driven member 4, the axial movement control member 8 and the winding member 6 rotate in the first direction D1 to be a long member. 5 is wound around the winding member 6.

When the long member 5 is wound around the winding member 6, the other end 51b of the long member 5 moves to operate the operation target P, as shown in FIG. As a result, the lock mechanism that locks the seat ST is unlocked, and the tilted state of the seat ST can be changed. When the winding member 6 is rotated at a predetermined rotation angle, as shown in FIG. 2, the regulating portion 63 provided on the end face of the winding member 6 is rotated in the first direction D1 and the second It moves until it comes into contact with the contact portion A2. As a result, the rotation angle of the winding member 6 is regulated, and the operating amount of the long member 5 can be set to a predetermined amount. Further, since the regulating portion 63 has the cushioning member DP, when the winding member 6 rotates by a predetermined amount, abnormal noise when the regulating portion 63 and the second contact portion A2 come into contact with each other is reduced. To.

When the operation of the sheet ST is completed, the winding member 6 returns to the initial position by the urging force of the winding member urging member 9, the driven member 4 returns to the initial position by the urging force of the driven member urging member 7, and the long member 5 winds. The seat ST is unwound from the take-up member 6, the lock mechanism of the seat ST is locked, and the operation is completed.

1 Drive device 2 Drive unit 21 Motor 22 Worm gear 3 Rotating member 31 Rotating member side base 31a Shaft insertion hole 31b Through hole 32 Connecting part 33 Rotating member side engaged part 4 Driven member 41 Base 411 Accommodating part 411a Circular part 411b Opening 42 Engagement part 42a, 42b Side part of engagement part 42c Sliding part 5 Long member 51 Cable 51a One end of cable 51b Other end of cable 52 Outer casing 6 Winding member 61 Winding member side base 61a Winding part 61b Cable connection part 61c Recession 62 Winding member side engaged part 63 Restricting part 7 Driven member urging member 8 Axial movement control member 81 Shaft member 82 Rotating part 821 Cylindrical part 83 Load part 9 Winding member urging member A Contact part A1 First contact part A2 Second contact part C Case C1 Case body C2 Lid part D Sheet operation device D1 First direction D2 Second direction DP Buffer member E Opening edge L Free fit mechanism OP operation Part P Operation target PR Protrusion PR1 Axial protrusion PR2 Fitting protrusion S Movement mechanism Sa Guide part Sa1 Inclined surface Sb Connection part SP Spring ST Seat X axis

Claims (5)

With the drive unit
A rotating member that rotates around an axis by the driving force of the driving unit,
A driven member that can engage with the rotating member in the axial direction,
A winding member around which a long member for operating the operation target is wound, and
It is a drive device equipped with
The driven member rotates with the rotation of the rotating member by engaging with the rotating member, and the driven member rotates.
The take-up member is provided so as to be rotatable around an axis according to the rotation of the driven member by transmitting a rotational force from the driven member.
The driven member is movable relative to the winding member in the axial direction, and can move toward the winding member in the axial direction to transmit the rotational force of the driven member to the winding member. It moves between a position and a non-transmission position where the rotational force of the driven member is not transmitted to the take-up member away from the take-up member in the axial direction.
The drive device
A driven member urging member that urges the driven member toward the non-transmission position side,
Axial movement control member connected to the driven member so that coaxial relative rotation is possible,
A moving mechanism provided between the driven member and the axial movement control member to move the driven member in the axial direction toward the winding member.
It is provided between the driven member and the axial movement control member, and includes a loose fitting mechanism that allows the driven member and the axial movement control member to transition between an engaged state and a relative movement allowable state.
The axial movement control member has a load portion that applies a load to the rotation of the axial movement control member around an axis.
The movement mechanism is provided on one of the driven member and the axial movement control member, and is provided on a guide portion for guiding the driven member to the transmission position and on the other of the driven member and the axial movement control member. , With a connecting part that moves relative to the guide part,
When the rotating member is rotated to one side by the driving force of the driving unit,
In the driven member, the connecting portion moves relative to the guide portion due to the difference in rotation speed in rotation to one of the driven member and the axial movement control member in the relative movement allowable state of the loose fitting mechanism. As a result, it rotates in the axial direction and moves in the axial direction toward the take-up member to move to the transmission position.
A driving device in which the winding member is rotated and the long member is driven by the rotation of the driven member at the transmission position. The guide portion of the moving mechanism is an inclined surface of the axial protrusion.
The driving device according to claim 1, wherein the connecting portion that moves relative to the guide portion is an edge portion of an opening into which the axial protrusion is inserted. The rotating member is provided between the winding member and the driven member in the axial direction.
The driven member has a base portion and an engaging portion extending axially from the base portion and engaging with the rotating member in the axial direction.
The driving device according to claim 1 or 2, wherein when the driven member moves to the transmission position, the engaging portion engages with the winding member in the axial direction. The axial movement control member is supported by a case accommodating the driven member so as to be rotatable around an axis.
The drive device according to any one of claims 1 to 3, wherein the load unit has a spring capable of suppressing rotation of the axial movement control member by engaging with the case. The take-up member has a regulating portion that comes into contact with the case of the drive device and regulates the rotation angle of the take-up member within a predetermined range.
The case of the drive device has a contact portion that comes into contact with the regulation portion.
Any one of claims 1 to 4, wherein the regulating portion and / or the abutting portion has a buffer member that suppresses an abnormal noise at the time of abutting between the regulating portion and the abutting portion. The drive according to the section.

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