JP2016204994A - Clutch device and actuator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clutch device and an actuator capable of thinning a braking member in a direction of rotation axis core and thinning the clutch device.SOLUTION: A braking member 60 comprises: a first pressing member 160, which has a first butting part 161 that butts a braked part 211 from one side of a first direction and a first spring receiving part 162 positioned on the other side of the braked part 211 in the first direction; a second pressing member 260, which has a second butting part 261 that butts the braked part 211 from the other side in the first direction and a second spring receiving part 262 positioned on one side of the braked part 211 in the first direction; a first energizing spring 170, which is disposed between the first butting part 161 and the second butting part 262 and energizes the first butting part 161 and the second spring receiving part 262 so as to separate from each other in the first direction; and a second energizing spring 270, which is positioned between the second butting part 261 and the first spring receiving part 162 and energizes the second butting part 261 and the first spring receiving part 162 so as to separate from each other in the first direction.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a clutch device and an actuator.

  Patent Document 1 discloses a conventional clutch device and actuator. The clutch device includes a base member, a first rotating body, a second rotating body, and switching means. The first rotating body is supported by the base member so as to be rotatable around the rotation axis of the rotation shaft, and is driven to rotate by a drive source. The second rotating body is supported so as to be rotatable around the rotation axis with respect to the base member, and is adjacent to the first rotating body. The switching means is provided between the first rotating body and the second rotating body. The switching means switches between a connection state in which the first rotator and the second rotator rotate together and a blocking state in which the second rotator can rotate independently of the first rotator.

  More specifically, the switching means includes a first movable body, a second movable body, and a braking member. The first movable body has a braked portion formed in a cylindrical shape centered on the rotation axis. The first movable body is provided with a stepped hole extending in a direction intersecting the radial direction of the rotation axis along a plane orthogonal to the rotation axis.

  The second movable body is an engagement pin having a square cross section. The second movable body is inserted into the stepped hole of the first movable body so as to be able to advance and retract. The second movable body is configured to be separated from the second rotating body when retracted into the stepped hole, while being engaged with the second rotating body when protruding from the stepped hole.

  The braking member is provided on the base member. The braking member has a holding member, a pressing member, and one urging spring. The holding member is formed with a first contact portion and a case portion. Assuming that the direction orthogonal to the rotation axis is the first direction, the first contact portion is a semi-cylindrical surface that contacts the braked portion of the first movable body from one side in the first direction. The case portion holds the pressing member displaceable in the first direction on the other side in the first direction with respect to the braked portion. A second contact portion is formed on the pressing member. The second contact portion is a semi-cylindrical surface that contacts the braked portion from the other side in the first direction. The urging spring is provided between the pressing member and the case portion, and urges the pressing member toward one side in the first direction.

  In the conventional clutch device configured as described above, when the first rotating body is driven to rotate by the drive source and rotates, the braking member of the switching means has the first abutting portion and the second abutting portion as urging springs. By being urged and pressed while sandwiching the braked part, a predetermined frictional force is applied to the braked part, and the first movable body is delayed with respect to the first rotating body. Accordingly, the braking member causes the second movable body to protrude from the stepped hole and engage with the second rotating body. As a result, the clutch device is switched from the disconnected state to the connected state. On the other hand, when the first rotating body is not rotationally driven by the drive source, the switching unit retracts the second movable body into the stepped hole and separates it from the second rotating body. As a result, the clutch device is switched from the connected state to the disconnected state.

  The actuator includes a drive source fixed to the base member, the clutch device configured as described above, and an output unit that operates in accordance with the rotation of the second rotating body. The actuator can operate the output unit in response to rotational driving or stopping of the driving source.

JP 2007-56496 A

  By the way, in the conventional clutch device, since a predetermined frictional force is applied to the braked portion by one urging spring, the urging spring is easily increased in size. For example, if the urging spring is a compression coil spring, the spring wire diameter is increased and the winding diameter is increased. As a result, in this clutch device, there is a problem that it is difficult to reduce the thickness of the braking member in the direction of the rotation axis, and thus it is difficult to reduce the thickness of the clutch device and the actuator.

  The present invention has been made in view of the above-described conventional circumstances, and provides a clutch device and an actuator that can reduce the thickness of the braking member in the direction of the rotation axis, and thus can reduce the thickness of the clutch device. It is an issue that should be done.

The clutch device of the present invention includes a base member,
A first rotating body that is rotatably supported around the rotation axis with respect to the base member, and is driven to rotate by a drive source;
A second rotating body that is rotatably supported around the rotation axis with respect to the base member, and is adjacent to the first rotating body;
The second rotating body is provided between the first rotating body and the second rotating body, and the second rotating body is independent of the first rotating body and the connection state in which the first rotating body and the second rotating body rotate integrally. Switching means for switching between a shut-off state in which the rotating body can rotate,
The switching means includes a first movable body having a braked portion formed in a cylindrical shape centered on the rotation axis;
A second movable body supported by the first movable body so as to be engaged and disengaged from the second rotating body;
The second movable body is provided to the second base member by applying a predetermined frictional force to the braked portion to cause a delay in rotation of the first movable body with respect to the first rotating body. A clutch device having a braking member engaged with a rotating body,
The braking member is positioned on the other side in the first direction with respect to the braked portion, and a first contact portion that contacts the braked portion from one side in the first direction orthogonal to the rotational axis. A first pressing member having a first spring receiving portion;
A second pressing portion having a second contact portion that contacts the braked portion from the other side in the first direction, and a second spring receiving portion positioned on one side of the first direction with respect to the braked portion. Members,
A first attachment is provided between the first contact portion and the second spring receiving portion and urges the first contact portion and the second spring receiving portion to be separated in the first direction. Force springs,
A second attachment provided between the second contact portion and the first spring receiving portion and biasing the second contact portion and the first spring receiving portion so as to be separated from each other in the first direction. A spring, and
The switching means is provided on the base member or the braking member, and has a restricting portion that restricts rotation of the first pressing member and the second pressing member around the rotation axis. To do.

  In the clutch device of the present invention, the braking member is pressed while the first contact portion and the second contact portion are urged by the first urging spring and the second urging spring so as to sandwich the braked portion. As a result, a predetermined frictional force is applied to the braked part, and the rotation of the first movable body relative to the first rotating body is delayed. That is, in this clutch device, a predetermined frictional force is applied to the first movable body by the two first and second urging springs that are in parallel, so that one urging spring in the conventional clutch device is provided. The first and second biasing springs can be reduced in size as compared with the above. For example, if the first and second biasing springs are compression coil springs, the spring wire diameter can be reduced and the winding diameter can also be reduced.

  The first biasing spring is located on one side in the first direction with respect to the braked portion, and the second biasing spring is located on the other side in the first direction with respect to the braked portion. That is, the first urging spring and the second urging spring do not overlap in the rotation axis direction.

  Therefore, in the clutch device of the present invention, it is possible to reduce the thickness of the braking member in the direction of the rotation axis, and thus to reduce the thickness of the clutch device.

  At least one of the first pressing member and the second pressing member allows the relative displacement in the first direction of the first pressing member and the second pressing member, and the relative displacement in the rotation axis direction, and the first direction and the rotation. It is desirable that a guide portion for restricting relative displacement in a second direction orthogonal to the axial direction is formed. And it is desirable for the side surface which faces the circumferential direction of the rotating shaft core in at least one of a 1st press member and a 2nd press member to serve as a control part. According to this configuration, there is no need to separately prepare a case for housing the first and second pressing members, and the number of parts can be reduced. As a result, with this clutch device, the manufacturing cost can be reduced.

  The second pressing member is preferably the same member as the first pressing member. The second pressing member is preferably combined with the first pressing member in a posture opposite to that of the first pressing member. According to this configuration, since the parts can be shared for the first and second pressing members, the number of parts can be further reduced. Further, when the first and second pressing members are resin molded products, the mold cost can be reduced. As a result, this clutch device can further reduce the manufacturing cost.

  The first pressing member is desirably provided with a long hole penetrating in the direction of the rotation axis and extending in the first direction. It is desirable that a first contact portion is formed on an inner wall surface located on one side in the first direction of the inner peripheral surface of the elongated hole. It is desirable that a first spring receiving portion and a receiving portion constituting a part of the guide portion are formed on the inner wall surface located on the other side in the first direction of the inner peripheral surface of the elongated hole. On one side of the first direction of the first pressing member, a sliding contact portion that is thinner than the other side of the first direction in the rotational axis direction and forms a part of the guide portion, and a first contact It is desirable that a protruding portion that protrudes to one side in the first direction from the portion and constitutes a part of the guide portion is formed.

  In this case, when the second pressing member is combined with the first pressing member in a posture opposite to that of the first pressing member, the first contact portion related to the first pressing member becomes the second contact related to the second pressing member. The first spring receiving portion related to the first pressing member functions as a contact portion, the second spring receiving portion related to the second pressing member functions, and the receiving portion related to the first pressing member and the protruding portion related to the second pressing member Are engaged, the projecting portion related to the first pressing member and the receiving portion related to the second pressing member are engaged, and the sliding contact portion related to the first pressing member and the sliding contact portion related to the second pressing member are Abuts so as to be slidable.

  Here, the sliding contact portion is formed to be thin in a step shape in the rotation axis direction, and the sliding contact portion related to the first pressing member and the sliding contact portion related to the second pressing member come into contact with each other, thereby being combined with each other. The thickness of the 1, 2 pressing member in the direction of the rotation axis can be reduced. Further, the relative displacement in the rotation axis direction is allowed for the first pressing member and the second pressing member while allowing the first pressing member and the second pressing member to be displaced in the first direction by the guide portion constituted by the simple receiving portion, the sliding contact portion, and the protruding portion. And the relative displacement in the second direction can be reliably regulated.

  The first pressing member is desirably formed with a first pressed portion that is exposed on the other side of the braking member in the first direction and can be pressed toward the one side of the first direction. It is desirable that the second pressing member is formed with a second pressed portion that is exposed on one side of the braking member in the first direction and can be pressed toward the other side of the first direction.

  According to this configuration, when the first pressed portion and the second pressed portion are simply brought close to each other, the first contact portion and the second contact portion are separated in the first direction. For this reason, the braked part can be easily inserted between the first pressed part and the second pressed part. As a result, in this clutch device, an assembling jig or the like for the braking member becomes unnecessary, and simplification of assembling work can be realized.

  An actuator according to the present invention includes a drive source fixed to a base member, the clutch device, and an output unit that operates in accordance with the rotation of the second rotating body.

  According to the actuator of the present invention, the braking member can be thinned in the direction of the rotational axis due to the effect of the clutch device described above, and hence the actuator can be thinned.

  According to the clutch device and the actuator of the present invention, it is possible to reduce the thickness of the braking member in the direction of the rotation axis, and consequently to reduce the thickness of the clutch device and the actuator.

FIG. 1 is a plan view illustrating a state in which an upper housing is removed according to an actuator to which the clutch device of the embodiment is applied. FIG. 2 is a partial cross-sectional view showing an AA cross section of FIG. 1 according to an actuator to which the clutch device of the embodiment is applied. FIG. 3 is an exploded perspective view of the clutch device of the embodiment. FIG. 4 is a perspective view of the first movable body according to the clutch device of the embodiment. FIG. 5 is a partial plan view showing a relative relationship among the first rotating body, the first movable body, and the urging member, according to the clutch device of the embodiment. FIG. 6 is a partial plan view illustrating a relative relationship among a braked portion of the first movable body, a braking member, and a lower housing, in an actuator to which the clutch device of the embodiment is applied. FIG. 7 is a perspective view of the second movable body according to the clutch device of the embodiment. FIG. 8 is an exploded perspective view of a braking member according to the clutch device of the embodiment. FIG. 9 is a plan view of a braking member according to the clutch device of the embodiment. FIG. 10 is a perspective view of a braking member according to the clutch device of the embodiment. FIG. 11 is a perspective view illustrating a braking member attached to the braked portion of the first movable body according to the clutch device of the embodiment. FIG. 12 is a partial plan view illustrating the shut-off state according to the clutch device of the embodiment. FIG. 13 is a partial plan view illustrating a state in the middle of switching to the disconnected state or the connected state, according to the clutch device of the embodiment. FIG. 14 is a partial plan view illustrating a connected state according to the clutch device of the embodiment.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings.

(Example)
As shown in FIGS. 1 and 2, the clutch device 10 and the actuator 1 of the embodiment are examples of specific modes of the clutch device and the actuator of the present invention. In addition, although the attitude | position when using the clutch apparatus 10 and the actuator 1 is suitably set according to an application object, in a present Example, an up-down direction, the front-back direction, and the left-right direction are prescribed | regulated as follows. Then, each component including the braking member 60 and the like will be described. That is, the bottom side of the lower housing 2A of the actuator 1 (the back side in FIG. 1) is defined as the lower side, the opposite side (the front side in FIG. 1) is defined as the upper side, and the lower side in FIG. The left side of FIG. 1 is defined as the right side, the left side of FIG. 1 is defined as the front side, and the right side of FIG. 1 is defined as the rear side. The vertical direction, the front-rear direction, and the left-right direction shown in the drawings after FIG. 2 are all displayed in correspondence with FIG.

  As shown in FIGS. 1 and 2, the clutch device 10 of the embodiment constitutes a part of the actuator 1. Although not shown, the actuator 1 is mounted on a vehicle, for example, and is used for releasing the latch of a vehicle opening / closing body (for example, a door). However, the clutch device according to the present invention is not limited to the following examples, and is used for various purposes including latching locking of automobile doors or actuators for operating the locking lever of the door locking device to the locking side or the releasing side. Needless to say, it can be used. Hereinafter, each component of the actuator 1 will be described.

  The actuator 1 includes a lower housing 2A having a box shape whose upper surface side (front side in FIG. 1) is opened, and an upper housing 2B having a lid shape covering the opened surface of the lower housing 2A (see FIG. 2). ). In FIG. 1, the upper housing 2B is not shown, but the upper housing 2B is located on the front side of the lower housing 2A. The lower housing 2A and the upper housing 2B are examples of the “base member” of the present invention.

  As shown in FIG. 1, an electric motor 9, a clutch device 10, and an output unit 8 are accommodated in a closed space defined by the lower housing 2 </ b> A and the upper housing 2 </ b> B. The electric motor 9 is an example of the “drive source” in the present invention.

  The electric motor 9 is fixed so as to be adjacent to the inner wall surface on the front side of the lower housing 2A. A worm gear 9A is fixed to the drive shaft of the electric motor 9 so as to be integrally rotatable. A connector 5 is provided near the electric motor 9 in the lower housing 2A. The electric motor 9 is electrically connected to a controller (not shown) provided outside via the connector 5. In this embodiment, the electric motor 9 rotates or stops under the control of the controller when the vehicle opening / closing body is locked or unlocked.

  As shown in FIGS. 1 and 2, the clutch device 10 includes a lower housing 2 </ b> A, an upper housing 2 </ b> B, a first rotating body 110, a second rotating body 120, and switching means 20.

  The lower housing 2A and the upper housing 2B are provided with support shafts 3 supported at both ends thereof. The support shaft 3 is a cylindrical shaft body extending in the vertical direction. The axis of the support shaft 3 is defined as a rotation axis C.

  As shown in FIGS. 2 and 3, the first rotating body 110 includes a first disk portion 111, a first cylindrical portion 112, and external teeth 119. A rotation shaft hole 113 coaxial with the rotation axis C is formed at the center of the first disk portion 111. A substantially prismatic angle restricting portion 114 is formed so as to protrude upward at a position away from the rotation shaft hole 113 in the first disc portion 111 in the radially outward direction. The angle restricting portion 114 is for restricting the rotation angle of the first movable body 210 to be described later with respect to the first rotating body 110. The first cylindrical portion 112 is formed on the outer peripheral edge of the first disc portion 111 and extends in two stages coaxially with the rotational axis C. The external teeth 119 are formed on the outer peripheral surface of the first cylindrical portion 112.

  As shown in FIG. 2, the first rotation is performed by inserting a braked portion 211 of the first movable body 210 described later into the rotation shaft hole 113 and inserting the support shaft 3 into the shaft hole 214 of the first movable body 210. The body 110 is supported so as to be rotatable around the rotation axis C with respect to the lower housing 2A and the upper housing 2B.

  As shown in FIG. 1, the external teeth 119 mesh with the worm gear 9A. The first rotating body 110 is rotationally driven by the electric motor 9 via the worm gear 9A and the external teeth 119. The electric motor 9 is controlled by the controller to rotate the first rotating body 110 in the forward direction (clockwise toward the paper surface of FIG. 1, the same applies hereinafter). That is, if the controller and the electric motor 9 are correctly wired, the electric motor 9 will cause the first rotating body 110 to rotate in the reverse direction (counterclockwise toward the plane of FIG. 1; the same applies hereinafter). Absent.

  As shown in FIGS. 2 and 3, the second rotating body 120 is provided adjacent to the first rotating body 110. The second rotating body 120 includes a second disk part 121, a second cylindrical part 122, an engaged part 124, and a transmission gear 129. A rotation shaft hole 123 coaxial with the rotation axis C is formed at the center of the second disk portion 121. The second disk part 121 is opposed to the first disk part 111 with an interval therebetween. The second cylindrical portion 122 is formed on the outer peripheral edge of the second disk portion 121 and extends downward toward the inner peripheral surface side of the first cylindrical portion 112 coaxially with the rotational axis C. As shown in FIGS. 1 and 2, a plurality of engaged portions 124 are formed on the inner peripheral surface of the second cylindrical portion 122, and protrude in the radial inner direction of the rotary shaft core C from the inner peripheral surface. The transmission gear 129 protrudes above the second disk portion 121 coaxially with the rotational axis C, and external teeth are formed on the outer peripheral edge thereof.

  As shown in FIG. 1, each engaged portion 124 protrudes in a substantially triangular shape when seen in a plan view. The surface of each engaged portion 124 facing in the positive direction extends slightly inclining slightly with respect to the circumferential direction of the rotation axis C. On the other hand, the surface of each engaged portion 124 facing in the opposite direction extends short in the radial direction of the rotation axis C. By forming each engaged portion 124 in such a shape, a claw portion 223 of the second movable body 220 described later can be engaged with a surface of each engaged portion 124 facing in the opposite direction. Yes.

  As shown in FIG. 2, by inserting the support shaft 3 into the rotation shaft hole 123, the second rotating body 120 is also supported rotatably around the rotation axis C with respect to the lower housing 2A and the upper housing 2B. Has been.

  As shown in FIGS. 2 and 3, the switching means 20 is provided between the lower housing 2A and the upper housing 2B. The switching unit 20 includes a first movable body 210, a second movable body 220, a torsion coil spring 50, and a braking member 60.

  The first movable body 210, the second movable body 220, and the torsion coil spring 50 are provided between the first rotating body 110 and the second rotating body 120. More specifically, the first movable body 210, the second movable body 220, and the torsion coil spring 50 are partitioned by the first disk portion 111, the first cylindrical portion 112, the second disk portion 121, and the second cylindrical portion 122. Provided in the internal space 100.

  As shown in FIGS. 2 to 4, the first movable body 210 has a fan shape surrounding the rotation axis C. The 1st movable body 210 is accommodated in the internal space 100 in the state adjacent to the 1st disk part 111 from upper direction. A braked portion 211, a convex portion 213, and a shaft hole 214 are formed in the first movable body 210. The braked portion 211 is formed in a cylindrical shape centered on the rotation axis C and protrudes downward. The convex portion 213 is coaxial with the rotational axis C and protrudes above the braked portion 211. The shaft hole 214 allows the support shaft 3 to be inserted from the braked portion 211 to the convex portion 213.

  As shown in FIGS. 2 and 5, in a state where the braked portion 211 is inserted into the rotation shaft hole 113 and the support shaft 3 is inserted into the shaft hole 214, the first movable body 210 is rotated around the rotation axis C. It is rotatably supported. However, in the first movable body 210, the end surface 210A facing the forward direction of the fan-shaped portion stops against the angle restricting portion 114, or the end surface 210B facing the opposite direction is interposed via a stopper 224 of the second movable body 220 described later. The rotation angle with respect to the first rotating body 110 is limited by stopping against the angle restricting portion 114.

  As shown in FIGS. 5 and 12, the position where the end surface 210 </ b> A of the first movable body 210 abuts against the angle restricting portion 114 is an “initial position” of the first movable body 210 with respect to the first rotating body 110. On the other hand, as shown in FIG. 14, the first movable body 210 rotates relative to the first rotating body 110 in the opposite direction from the initial position, and the end surface 210 </ b> B of the first movable body 210 is angled via the stopper 224. The position where it stops against the restricting portion 114 is a position where the first movable body 210 is rotated by a predetermined angle α from the “initial position” with respect to the first rotating body 110. That is, the first movable body 210 is supported so as to be rotatable about the rotation axis C while the rotation angle is limited to the first rotation body 110 from the initial position to the predetermined angle α. The predetermined angle α is 45 ° to 180 ° in order to ensure a sufficient amount of displacement when a claw portion 223, which will be described later, rotates around the eccentric axis H and approaches or separates from the rotation axis C. It is more preferable to be within the range. In this embodiment, the predetermined angle α is about 90 °.

  As shown in FIGS. 4 and 5, an eccentric shaft hole 212 is recessed on the upper surface side of the first movable body 210 at a distance from the shaft hole 214. The eccentric shaft hole 212 forms an eccentric shaft core H that is eccentric from the rotation shaft core C.

  A groove 215, a first locking part 216, and a second locking part 217 are formed on the upper surface side of the first movable body 210. The groove 215 surrounds the shaft hole 214 and the eccentric shaft hole 212 in an annular shape. The first locking portion 216 is a slit formed so as to allow the groove portion 215 and the eccentric shaft hole 212 to communicate with each other. The second locking portion 217 is located on the opposite side of the first locking portion 216 across the shaft hole 214 and the eccentric shaft hole 212. The 2nd latching | locking part 217 protrudes upwards, and the upper end side has protruded in the width direction.

  The groove part 215, the 1st latching | locking part 216, and the 2nd latching | locking part 217 hold | maintain the torsion coil spring 50 shown in FIG. The torsion coil spring 50 is housed in the groove 215 as shown in FIG. 5 in a state where it is twisted so as to store an urging force. In this state, one end 50A of the torsion coil spring 50 bent in the radially inward direction is locked to the first locking portion 216, and the other end 50B bent in the radially outward direction is locked to the second locking portion 217. Is done. Thereby, the torsion coil spring 50 is held by the first movable body 210 in a state where the urging force is stored, and is accommodated in the internal space 100. When the clutch device 10 is assembled, a stopper 224 described later is interposed between the other end 50B of the torsion coil spring 50 and the angle restricting portion 114, and the other end 50B of the torsion coil spring 50 faces the positive direction of the stopper 224. It abuts against the third locking portion 225 which is a surface. Thereby, the torsion coil spring 50 urges the first movable body 210 in the positive direction toward the initial position.

  FIG. 6 illustrates components of the clutch device 10 that are located below the first disk portion 111. As shown in FIGS. 2 and 6, the braked portion 211 of the first movable body 210 protrudes downward from the rotation shaft hole 113 of the first rotating body 110 and is a recessed portion provided in the bottom of the lower housing 2A. Extends within 2C.

  As shown in FIG. 2, the second movable body 220 is supported by the first movable body 210 in the internal space 100 so as to be able to engage with and separate from the second rotating body 120. As shown in FIGS. 3 and 7, the second movable body 220 includes a flat plate portion 221 having a flat plate shape along a plane orthogonal to the rotation axis C. An eccentric pin 222, a stopper 224, and a claw portion 223 are formed on the flat plate portion 221. The eccentric pin 222 is a cylindrical shaft body that protrudes downward from the approximate center of the flat plate portion 221. The stopper 224 is a substantially prismatic body that protrudes downward from the outer peripheral edge side away from the eccentric pin 222 of the flat plate portion 221. The claw portion 223 is a substantially triangular protrusion that protrudes radially outward from the outer peripheral edge side away from the eccentric shaft core H of the flat plate portion 221 and the stopper 224.

  As shown in FIGS. 12 to 14, by inserting the eccentric pin 222 into the eccentric shaft hole 212, the second movable body 220 can rotate around the eccentric axis H with respect to the first movable body 210. Supported by An arc-shaped slit 226 that surrounds the eccentric shaft core H is formed in the flat plate portion 221. The slit 226 allows the second movable body 220 to avoid interference with the support shaft 3 and the convex portion 213 when rotating around the eccentric shaft core H.

  As shown in FIGS. 5 and 7, the stopper 224 protrudes between the other end 50 </ b> B of the torsion coil spring 50 locked to the second locking portion 217 and the angle restricting portion 114 during assembly. . The surface of the stopper 224 that faces in the positive direction is a third locking portion 225. When the second movable body 220 rotates around the eccentric axis H, the third locking portion 225 locks the other end 50B of the torsion coil spring 50 as shown in FIGS. The torsion coil spring 50 is further twisted while resisting the biasing force of the coil spring 50. At this time, the other end 50 </ b> B of the torsion coil spring 50 is separated from the second locking portion 217.

  As shown in FIGS. 2 and 6, the braking member 60 is accommodated in the accommodating portion 2C of the lower housing 2A. The accommodating portion 2C is a bottomed hole that is recessed downward from the bottom of the lower housing 2A. As shown in FIG. 6, the housing portion 2 </ b> C has a substantially rectangular shape that is long in the front-rear direction and short in the left-right direction.

  In the following description, when the vertical direction, the front-rear direction, and the left-right direction are used for the shape and the like of the braking member 60, the posture of the braking member 60 housed in the housing portion 2C is used as a reference. The vertical direction is an example of the “rotational axis direction” in the present invention. The front-rear direction is an example of the “first direction” in the present invention. The left-right direction is an example of the “second direction” in the present invention. The front side is an example of “one side in the first direction” in the present embodiment, and the rear side is an example of “the other side in the first direction” in the present embodiment.

  As shown in FIGS. 3, 6, and 8 to 11, the braking member 60 includes a first pressing member 160, a second pressing member 260, a first biasing spring 170, and a second biasing spring 270. Yes.

  As shown in FIGS. 8 to 10, the first pressing member 160 is a resin molded product. The first pressing member 160 is provided with a long hole 160H penetrating in the vertical direction and extending in the front-rear direction. A first contact portion 161 that is a semi-cylindrical surface is formed on the inner wall surface located on the front side of the inner peripheral surface of the long hole 160H. A substantially columnar first spring receiving portion 162 is formed on the inner wall surface located on the rear side of the inner peripheral surface of the long hole 160H so as to protrude forward.

  In addition, a guide portion 163 is formed on the first pressing member 160. The guide part 163 includes a receiving part 164, a sliding contact part 165, and a protruding part 166.

  The receiving portion 164 is provided adjacent to the inner wall surface located on the rear side of the inner peripheral surface of the elongated hole 160H from below, and projects so as to narrow the rear portion of the elongated hole 160H in the left-right direction. .

  The sliding contact portion 165 is formed on the front side portion of the first pressing member 160. The sliding contact portion 165 is thinner in a step shape than the rear portion of the first pressing member 160 in the vertical direction. In other words, the upper surface of the first pressing member 160 is flat, and the region located on the rear side of the sliding contact portion 165 on the lower surface of the first pressing member 160 bulges below the sliding contact portion 165. .

  The protrusion 166 is formed at the front end of the first pressing member 160. The protruding portion 166 extends downward from the sliding contact portion 165 at a position in front of the first abutting portion 161 and then splits into two and protrudes forward. A substantially columnar third spring receiving portion 169 is formed at the center of the bifurcated portion of the protruding portion 166 so as to protrude forward.

  Further, the first pressing member 160 is formed with a restricting portion 167 and a first pressed portion 168.

  The restricting portion 167 is a left side surface and a right side surface of the first pressing member 160. The restricting portion 167 restricts the rotation of the first pressing member 160 around the rotation axis C by contacting the inner wall surface of the accommodating portion 2C in a state where the braking member 60 is accommodated in the accommodating portion 2C.

  The first pressed portion 168 is the rear surface of the first pressing member 160. The first pressed portion 168 is exposed to the rear side of the braking member 60, and can be pressed forward by the operator's fingertip in a state where the braking member 60 is not accommodated in the accommodating portion 2C. ing.

  The second pressing member 260 is a resin molded product having the same shape as the first pressing member 160. The second pressing member 260 is combined with the first pressing member 160 in a posture opposite to the first pressing member 160. Accordingly, the first contact portion 161 related to the first pressing member 160 functions as the second contact portion 261 related to the second pressing member 260, and the first spring receiving portion 162 related to the first pressing member 160 is the second. It functions as the second spring receiving portion 262 related to the pressing member 260, and the third spring receiving portion 169 related to the first pressing member 160 functions as the fourth spring receiving portion 269 related to the second pressing member 260. Further, the restricting portion 167 related to the first pressing member 160 functions as the restricting portion 267 related to the second pressing member 260, and the first pressed portion 168 related to the first pressing member 160 corresponds to the second pressing member 260 related to the second pressing member 260. It functions as the pressed part 268. Further, the receiving portion 164 related to the first pressing member 160 and the protruding portion 266 related to the second pressing member 260 are engaged, and the protruding portion 166 related to the first pressing member 160 and the receiving portion 264 related to the second pressing member 260 are engaged. And the sliding contact portion 165 related to the first pressing member 160 and the sliding contact portion 265 related to the second pressing member 260 come into contact with each other so as to be slidable.

  Specifically, the second pressing member 260 is provided with a long hole 260H that penetrates in the vertical direction and extends in the front-rear direction. A second contact portion 261 that is a semi-cylindrical surface is formed on the inner wall surface located on the rear side of the inner peripheral surface of the long hole 260H. A substantially columnar second spring receiving portion 262 is formed on the inner wall surface located on the front side of the inner peripheral surface of the long hole 260H so as to protrude rearward.

  In addition, a guide portion 263 is formed on the second pressing member 260. The guide part 263 includes a receiving part 264, a sliding contact part 265, and a protruding part 266.

  The receiving portion 264 is provided adjacent to the inner wall surface located on the front side of the inner peripheral surface of the elongated hole 260H from below, and projects so as to narrow the front portion of the elongated hole 260H in the left-right direction.

  The sliding contact portion 265 is formed on the rear side portion of the second pressing member 260. The sliding contact portion 265 is made thinner than the front portion of the second pressing member 260 in the vertical direction. In other words, the lower surface of the second pressing member 260 is flat, and the region located on the front side of the sliding contact portion 265 on the upper surface of the second pressing member 260 bulges above the sliding contact portion 265.

  The protrusion 266 is formed at the rear end of the second pressing member 260. The protruding portion 266 extends upward from the sliding contact portion 265 at a position on the rear side of the second contact portion 261 and then splits into two and protrudes backward. A substantially columnar fourth spring receiving portion 269 is formed at the center of the bifurcated portion of the protruding portion 266 so as to protrude rearward.

  Further, the second pressing member 260 is formed with a restricting portion 267 and a second pressed portion 268.

  The restricting portion 267 is a left side surface and a right side surface of the second pressing member 260. The restricting portion 267 restricts the rotation of the second pressing member 260 around the rotation axis C by contacting the inner wall surface of the accommodating portion 2C in a state where the braking member 60 is accommodated in the accommodating portion 2C.

  The second pressed portion 268 is the front surface of the second pressing member 260. The second pressed portion 268 is exposed to the front side of the braking member 60 and can be pressed backward by the operator's fingertip in a state where the braking member 60 is not accommodated in the accommodating portion 2C. Yes.

  When the first pressing member 160 and the second pressing member 260 are combined, the protruding portion 166 of the first pressing member 160 is in contact with the lower surface of the receiving portion 264 of the second pressing member 260, and the second pressing member 160 The protruding portion 266 of the member 260 is in contact with the upper surface of the receiving portion 164 of the first pressing member 160. At the same time, the sliding portion 165 of the first pressing member 160 and the sliding portion 265 of the second pressing member 260 are in contact with each other.

  Further, when the first pressing member 160 and the second pressing member 260 are combined, the left side surface and the right side surface of the protruding portion 166 of the first pressing member 160 are in contact with the inner wall surface of the elongated hole 260H of the second pressing member 260. The left side surface and the right side surface of the protrusion 266 of the second pressing member 260 are in contact with the inner wall surface of the elongated hole 160H in the first pressing member 160.

  Thus, the guide portions 163 and 263 restrict the relative displacement in the vertical direction and the relative displacement in the horizontal direction while allowing the relative displacement in the front-rear direction of the first pressing member 160 and the second pressing member 260.

  The first biasing spring 170 and the second biasing spring 270 are the same compression coil spring. The first urging spring 170 is provided between the third spring receiving portion 169 and the second spring receiving portion 262 that protrude forward from the first contact portion 161 side. The first biasing spring 170 biases the first abutting portion 161 and the second spring receiving portion 262 so as to be separated in the front-rear direction. The second urging spring 270 is provided between the fourth spring receiving portion 269 that protrudes rearward from the second contact portion 261 side and the first spring receiving portion 162. The second urging spring 270 urges the second abutting portion 261 and the first spring receiving portion 162 to be separated in the front-rear direction. That is, the first biasing spring 170 and the second biasing spring 270 are in a parallel relationship.

  The braked part 211 of the first movable body 210 is assembled between the first contact part 161 and the second contact part 261 of the braking member 60 as follows. As shown in FIG. 11, the operator holds the first pressed portion 168 of the first pressing member 160 and the second pressed portion 268 of the second pressing member 260 with the fingertips, and the first biasing spring 170 and The first pressed portion 168 and the second pressed portion 268 are pressed in the directions indicated by the arrows D1 and D2 while resisting the biasing force of the second biasing spring 270. Then, the first pressing member 160 and the second pressing member 260 are relatively displaced in the front-rear direction, and the first pressed portion 168 and the second pressed portion 268 approach in the front-rear direction, while the first contact portion 161 The second contact portion 261 is separated in the front-rear direction. As a result, the space formed between the first contact part 161 and the second contact part 261 is larger than the outer diameter of the braked part 211, so that the braked part 211 is moved as shown by an arrow D3. It can be easily inserted between the first contact portion 161 and the second contact portion 261.

  Thereafter, when the operator stops pressing the first pressed portion 168 and the second pressed portion 268 in the directions indicated by the arrows D1 and D2, the first contact portion 161 and the second contact portion 261 are The first biasing spring 170 and the second biasing spring 270 are biased and approach each other. As a result, the first contact part 161 contacts the braked part 211 from the front side, the second contact part 261 contacts the braked part 211 from the rear side, and presses while holding the braked part 211. Become.

  Such a braking member 60 applies a predetermined frictional force to the braked portion 211 and brakes the rotation of the braked portion 211 around the rotation axis C. At this time, the restricting portions 167 and 267 abut against the inner wall surface of the accommodating portion 2C and restrict the rotation of the first pressing member 160 and the second pressing member 260 around the rotation axis C.

  Here, the predetermined frictional force applied to the first movable body 210 by the braking member 60 is made larger than the urging force of the torsion coil spring 50 and made smaller than the rotational driving force transmitted from the electric motor 9. . For this reason, the braking member 60 suppresses the rotation of the first movable body 210 around the rotational axis C until the end surface 210B of the first movable body 210 stops against the angle restricting portion 114 via the stopper 224. As a result, the first movable body 210 is delayed with respect to the first rotating body 110. Then, after the end surface 210 </ b> B stops against the angle restricting portion 114 via the stopper 224, the braking member 60 loses the rotational driving force transmitted from the electric motor 9 and slips between the braked portion 211. Arise. As a result, the first movable body 210 rotates around the rotation axis C together with the first rotating body 110.

  The switching means 20 switches between the connected state and the disconnected state in the clutch device 10 as follows. In the connected state, the first rotating body 110 and the second rotating body 120 rotate integrally, and in the disconnected state, the second rotating body 120 can rotate independently of the first rotating body 110.

  FIG. 12 shows a state where the first rotating body 110 is stopped. When attention is paid to the relative positional relationship between the first movable body 210 and the first rotating body 110, the first movable body 210 is in the initial position with respect to the first rotating body 110. In addition, the 1st rotary body 110 can take arbitrary attitude | positions not only in the attitude | position shown in FIGS.

  In this case, a small backlash is secured between the stopper 224 and the angle restricting portion 114, and a small backlash is also secured between the third locking portion 225 and the other end 50 </ b> B of the torsion coil spring 50. When the first rotating body 110 tries to rotate in the forward direction with respect to the first movable body 210, the third locking portion 225 pushes the other end 50B of the torsion coil spring 50 and tries to twist the torsion coil spring 50 further. . At this time, the other end 50 </ b> B of the torsion coil spring 50 urges the third locking portion 225 against the first movable body 210 in the reverse direction by the urging force stored in the torsion coil spring 50. In other words, the one end 50A of the torsion coil spring 50 locked to the first locking portion 216 urges the first movable body 210 in the forward direction toward the initial position. In this state, the claw portion 223 approaches the rotation axis C and is separated from the engaged portion 124. As a result, there is no path for transmitting the rotational driving force from the electric motor 9 between the first rotating body 110 and the second rotating body 120, and the second rotating body 120 is independent of the first rotating body 110. It becomes a shut-off state that can rotate. In addition, since the 2nd rotary body 120 is located in the paper surface front side of FIGS. 12-14, it shows in figure with a dashed-two dotted line.

  13 and 14 show a state in which the first rotating body 110 is rotated in the forward direction from the state shown in FIG. When attention is paid to the relative positional relationship between the first movable body 210 and the first rotating body 110, FIG. 13 shows that the first movable body 210 rotates relative to the first rotating body 110 from the initial position to the predetermined angle α in the opposite direction. FIG. 14 shows a state where the first movable body 210 is rotated from the initial position to the predetermined angle α in the reverse direction with respect to the first rotating body 110.

  As described above, the braking member 60 is in the initial position until the end surface 210B of the first movable body 210 is brought into contact with the angle restricting portion 114 via the stopper 224, that is, the first movable body 210 is in the initial position with respect to the first rotating body 110. The rotation of the first movable body 210 around the rotation axis C is suppressed until it rotates in the opposite direction to the predetermined angle α. For this reason, the first movable body 210 is delayed with respect to the first rotating body 110 during the period from the state shown in FIG. 12 to the state shown in FIG. Then, as shown in FIG. 14, after the end surface 210 </ b> B stops against the angle restricting portion 114 via the stopper 224, the braking member 60 is defeated by the rotational driving force transmitted from the electric motor 9 and is first movable. A slip occurs between the body 210 and the braked part 211. As a result, the first movable body 210 rotates in the positive direction around the rotation axis C together with the first rotating body 110.

  In the state shown in FIG. 13 (the state in the middle of the transition from the state shown in FIG. 12 to the state shown in FIG. 14), the stopper 224 comes into contact with the angle restricting portion 114 and is pushed in the forward direction, while the braking member 60 is 1 Rotation of the movable body 210 around the rotation axis C is suppressed. For this reason, the second movable body 220 rotates in the positive direction around the eccentric axis H. At this time, the stopper 224 determines the posture of the second movable body 220 by sliding while being in contact with the angle restricting portion 114. For this reason, the claw portion 223 is guided by the stopper 224 and is separated from the rotation axis C and approaches the engaged portion 124.

  And when it transfers to the state shown in FIG. 14, the 2nd movable body 220 will further rotate in the positive direction around the eccentric shaft center H. As shown in FIG. For this reason, the claw part 223 is further away from the rotation axis C and engages with the engaged part 124. As a result, a path for transmitting the rotational driving force from the electric motor 9 is formed between the first rotator 110 and the second rotator 120, and the first rotator 110 and the second rotator 120 are positively connected. It becomes a connection state that can rotate integrally in the direction. The second rotating body 120 rotates in the forward direction around the rotation axis C together with the first rotating body 110, the first movable body 210, and the second movable body 220.

  Further, at this time, the torsion coil spring is configured such that the second locking member 225 stores the urging force of the torsion coil spring 50 as the second movable body 220 rotates around the axis H of the first movable body 210. The other end 50B of 50 is twisted in the forward direction. For this reason, in the connected state, a strong biasing force capable of returning the first movable body 210 to the initial position is stored in the torsion coil spring 50.

  Next, when the rotation of the electric motor 9 is stopped and the first rotating body 110 that has been rotating in the forward direction is stopped, for example, when the first rotating body 110 is stopped in the state shown in FIG. Since the rotational driving force of the electric motor 9 does not act on the braking portion 211, the braking member 60 again suppresses the rotation of the first movable body 210 around the rotational axis C. Then, as shown in FIG. 13, the strong biasing force stored in the torsion coil spring 50 acts so as to push back the first rotating body 110, thereby rotating the first rotating body 110 in the reverse direction.

  In the state shown in FIG. 13 (the state in the middle of the transition from the state shown in FIG. 14 to the state shown in FIG. 12), the stopper 224 is also pushed by the other end 50B of the torsion coil spring 50 and remains in contact with the angle restricting portion 114. While being pushed back in the reverse direction, the braking member 60 suppresses the rotation of the first movable body 210 around the rotation axis C. For this reason, the second movable body 220 rotates in the reverse direction around the eccentric axis H. Also at this time, the stopper 224 determines the posture of the second movable body 220 by sliding while being in contact with the angle restricting portion 114. For this reason, the claw portion 223 is guided by the stopper 224, approaches the rotation axis C and moves away from the engaged portion 124.

  Then, when the state moves to the state shown in FIG. 12, the second movable body 220 further rotates in the reverse direction around the eccentric axis H, and the first movable body 210 returns to the initial position with respect to the first rotating body 110. . For this reason, the nail | claw part 223 gets closer to the rotating shaft C, and is further separated from the engaged part 124. As a result, the first rotating body 110 and the second rotating body 120 are cut off.

  On the other hand, when the first rotating body 110 rotates in the reverse direction from the state shown in FIG. 12 due to a malfunction of the electric motor 9 (for example, incorrect wiring of the electric motor 9), the angle regulating portion 114 is the end face of the first movable body 210. Since it is in contact with 210 </ b> A, the rotational driving force of the electric motor 9 is transmitted to the first movable body 210 via the angle restricting portion 114. For this reason, the braking member 60 loses the rotational driving force transmitted from the electric motor 9 and slips between the braked portion 211. As a result, the first movable body 210 rotates in the reverse direction around the rotation axis C together with the first rotating body 110. At this time, the stopper 224 is also pushed by the other end 50B of the torsion coil spring 50 and remains in contact with the angle restricting portion 114, so that the second movable body 220 is rotated around the eccentric shaft core H. Accordingly, the claw portion 223 remains separated from the engaged portion 124. As a result, the first rotator 110 and the second rotator 120 are kept disconnected.

  Next, the output unit 8 will be described. As shown in FIG. 1, the output unit 8 includes a large-diameter first output gear 8A, a small-diameter second output gear 8B, a fan-shaped third output gear 8C, and a transmission shaft 8D. The first output gear 8A and the second output gear 8B are integral parts of a coaxial structure. The first output gear 8A and the second output gear 8B are rotatably supported by a support shaft 4 that is supported at both ends by the lower housing 2A and the upper housing 2B at a distance from the support shaft 3. The first output gear 8A meshes with the transmission gear 129. The second output gear 8B located on the lower side of the first output gear 8A meshes with the third output gear 8C.

  The third output gear 8C is coupled to one end of the transmission shaft 8D. An intermediate portion of the transmission shaft 8D is rotatably supported by the lower housing 2A. The other end of the transmission shaft 8 </ b> D protrudes outside the lower housing 2 </ b> A and is coupled to the operating arm 7.

  That is, if the second rotating body 120 rotates, the rotation is transmitted to the operating arm 7 via the transmission gear 129, the first output gear 8A, the second output gear 8B, the third output gear 8C, and the transmission shaft 8D. The operating arm 7 swings around the transmission shaft 8D. On the contrary, if the operating arm 7 swings around the transmission shaft 8D, the second rotating body 120 is connected to the second rotation body 120 via the transmission shaft 8D, the third output gear 8C, the second output gear 8B, the first output gear 8A, and the transmission gear 129. The swing is transmitted and the second rotating body 120 rotates around the rotation axis C.

  The actuator 1 to which the clutch device 10 of the embodiment having the above configuration is applied operates as follows.

  In a state where the electric motor 9 is controlled by the controller, the first rotating body 110 is also stopped. In this state, as described above, the switching unit 20 switches the first rotating body 110 and the second rotating body 120 to the disconnected state, so that the second rotating body 120 can rotate independently of the first rotating body 110. Become. As a result, the operating arm 7 can swing around the transmission shaft 8 </ b> D regardless of the electric motor 9.

  On the other hand, when the electric motor 9 rotates under the control of the controller, the first rotating body 110 is rotationally driven in the forward direction. Then, as described above, the switching unit 20 switches the first rotating body 110 and the second rotating body 120 to the connected state, so that the second rotating body 120 rotates in the forward direction together with the first rotating body 110. As a result, the rotation is transmitted to the operating arm 7, and the operating arm 7 swings in the positive direction around the transmission shaft 8D.

  After that, if the electric motor 9 stops, the switching means 20 switches the first rotating body 110 and the second rotating body 120 to the cutoff state again, so that the operating arm 7 is rotated around the transmission shaft 8D regardless of the electric motor 9. Can be swung.

  Note that a return spring (not shown) for returning the operating arm 7 to the state shown in FIG. In this case, when the rotation of the electric motor 9 stops after the operating arm 7 swings in the forward direction from the position shown in FIG. 1 as the electric motor 9 rotates, the return arm is urged and the operating arm 7 is moved. Regardless of the electric motor 9, it is possible to quickly return to the position shown in FIG.

  Even when the first rotating body 110 is rotationally driven in the reverse direction due to a malfunction of the electric motor 9 (for example, erroneous wiring of the electric motor 9), as described above, the switching unit 20 is not connected to the first rotating body 110. And the second rotating body 120 are maintained in a shut-off state. For this reason, the rotational driving force in the reverse direction is not transmitted from the electric motor 9 to the operating arm 7, and the failure of the actuator 1 can be prevented.

<Effect>
In the clutch device 10 according to the embodiment, as illustrated in FIG. 6, the braking member 60 includes a first abutting portion 161 and a second abutting portion 261 that are connected to a first urging spring 170 and a second urging spring 270. A predetermined frictional force is applied to the braked part 211 by pressing the braked part 211 while being energized, and the first movable body 210 with respect to the first rotating body 110 as shown in FIGS. 13 and 14. Cause a delay. In other words, in this clutch device 10, the first contact portion 161 and the second contact portion 261 are brought close to each other by the two first and second biasing springs 170 and 270 that are in parallel, and the braked portion 211 is moved. Since a predetermined frictional force is applied to the first movable body 210 so as to be tightened, the first and second biasing springs 170 and 270 are smaller than the one biasing spring in the conventional clutch device. Can be Here, since the first and second urging springs 170 and 270 are the same compression coil springs, those having a small spring wire diameter and a small winding diameter can be used.

  Also, as shown in FIGS. 8 to 10, the first biasing spring 170 is located on the front side with respect to the braked portion 211, and the second biasing spring 270 is on the rear side with respect to the braked portion 211. positioned. That is, the first biasing spring 170 and the second biasing spring 270 do not overlap in the vertical direction.

  Therefore, in the clutch device 10 according to the embodiment, the braking member 60 can be thinned in the vertical direction, and as a result, the clutch device 10 can be thinned.

  Moreover, in this clutch apparatus 10, as shown in FIGS. 9-10, the guide parts 163 and 263 formed in the 1st press member 160 and the 2nd press member 260 are the 1st press member 160 and the 2nd press member. While allowing the relative displacement in the front-rear direction of 260, the relative displacement in the up-down direction and the relative displacement in the left-right direction are restricted. As shown in FIG. 6, the left side surface and the right side surface of each of the first pressing member 160 and the second pressing member 260 also serve as the restriction portions 167 and 267. Thereby, in this clutch apparatus 10, since it becomes unnecessary to prepare the case which accommodates the 1st, 2nd press members 160 and 260 separately, the number of parts can be reduced and, as a result, manufacturing cost can be reduced.

  Further, in the clutch device 10, the second pressing member 260 is the same member as the first pressing member 160. The second pressing member 260 is combined with the first pressing member 160 in a posture opposite to the first pressing member 160. Thereby, in this clutch device 10, since the parts can be made common to the first and second pressing members 160, 260, the number of parts can be further reduced. Moreover, since the 1st, 2nd press members 160 and 260 are resin molded products, the metal mold | die expense can also be reduced. As a result, the manufacturing cost of the clutch device 10 can be further reduced.

  Further, in this clutch device 10, the second pressing member 260 is combined with the first pressing member 160 in a posture opposite to the first pressing member 160, so that the receiving portion 164 and the second portion related to the first pressing member 160 are combined. The protruding portion 266 related to the pressing member 260 is engaged, the protruding portion 166 related to the first pressing member 160 and the receiving portion 264 related to the second pressing member 260 are engaged, and the sliding contact related to the first pressing member 160 is engaged. The portion 165 and the slidable contact portion 265 related to the second pressing member 260 are in contact with each other so as to be slidable.

  Here, the sliding contact portion 165 related to the first pressing member 160 and the sliding contact portion 265 related to the second pressing member 260 are formed to be thin in steps in the vertical direction, and the sliding contact portions 165 and 265 come into contact with each other. Accordingly, as shown in FIGS. 10 and 11, the thickness in the vertical direction of the first and second pressing members 160 and 260 combined with each other can be reduced. In addition, the first pressing member 160 and the second pressing member 260 are relative to each other in the front-rear direction by the guide portions 163 and 263 configured by the simple receiving portions 164 and 264, the sliding contact portions 165 and 265, and the protruding portions 166 and 266. While allowing the displacement, the relative displacement in the vertical direction and the relative displacement in the left-right direction can be reliably regulated.

  Furthermore, in this clutch device 10, as shown in FIG. 11, the operator grasps the first pressed portion 168 of the first pressing member 160 and the second pressed portion 268 of the second pressing member 260 with a fingertip. By pressing the first pressed portion 168 and the second pressed portion 268 in the directions indicated by the arrows D1 and D2, the first contact portion 161 and the second contact portion 261 are separated in the front-rear direction. As a result, the space formed between the first contact part 161 and the second contact part 261 is larger than the outer diameter of the braked part 211, so that the braked part 211 is moved as shown by an arrow D3. It can be easily inserted between the first contact portion 161 and the second contact portion 261. As a result, in the clutch device 10, an assembling jig or the like for the braking member 60 becomes unnecessary, and the assembling work can be simplified.

  In addition, the actuator 1 of the embodiment can reduce the thickness of the clutch device 10 described above, so that it can be reduced in thickness.

  While the present invention has been described with reference to the embodiments, it is needless to say that the present invention is not limited to the above-described embodiments and can be appropriately modified and applied without departing from the spirit thereof.

  For example, even if the braking member has a case, the first and second pressing members and the first and second biasing springs are accommodated in the case, and the side surface of the case that faces the circumferential direction of the rotating shaft also serves as the regulating portion Good.

  One of the first pressing member and the second pressing member may also serve as a case for housing the other of the first pressing member and the second pressing member and the first and second biasing springs.

  The first and second pressed parts may be end faces of the first and second pressing members, or may be convex parts protruding from the first and second pressing members in the direction of the rotation axis.

  The present invention can be used for actuators used in vehicles, industrial machines, home appliances, and the like.

10: Clutch device 2A, 2B: Base member (lower housing 2A, upper housing 2B)
C ... Rotating shaft core 9 ... Drive source (electric motor)
DESCRIPTION OF SYMBOLS 110 ... 1st rotary body 120 ... 2nd rotary body 20 ... Switching means 210 ... 1st movable body 211 ... Brake part 220 ... 2nd movable body 60 ... Braking member 160 ... 1st press member 161 ... 1st contact part 162 ... 1st spring receiving part 260 ... 2nd press member 261 ... 2nd contact part 262 ... 2nd spring receiving part 170 ... 1st biasing spring 270 ... 2nd biasing spring 167 ... Restricting part 163, 263 ... Guide Portion 160H ... Slot 164 ... Receiving portion 165 ... Sliding contact portion 166 ... Protruding portion 168 ... First pressed portion 268 ... Second pressed portion 8 ... Output portion 1 ... Actuator

Claims (6)

A base member;
A first rotating body that is rotatably supported around the rotation axis with respect to the base member, and is driven to rotate by a drive source;
A second rotating body that is rotatably supported around the rotation axis with respect to the base member, and is adjacent to the first rotating body;
The second rotating body is provided between the first rotating body and the second rotating body, and the second rotating body is independent of the first rotating body and the connection state in which the first rotating body and the second rotating body rotate integrally. Switching means for switching between a shut-off state in which the rotating body can rotate,
The switching means includes a first movable body having a braked portion formed in a cylindrical shape centered on the rotation axis;
A second movable body supported by the first movable body so as to be engaged and disengaged from the second rotating body;
The second movable body is provided to the second base member by applying a predetermined frictional force to the braked portion to cause a delay in rotation of the first movable body with respect to the first rotating body. A clutch device having a braking member engaged with a rotating body,
The braking member is positioned on the other side in the first direction with respect to the braked portion, and a first contact portion that contacts the braked portion from one side in the first direction orthogonal to the rotational axis. A first pressing member having a first spring receiving portion;
A second pressing portion having a second contact portion that contacts the braked portion from the other side in the first direction, and a second spring receiving portion positioned on one side of the first direction with respect to the braked portion. Members,
A first attachment is provided between the first contact portion and the second spring receiving portion and urges the first contact portion and the second spring receiving portion to be separated in the first direction. Force springs,
A second attachment provided between the second contact portion and the first spring receiving portion and biasing the second contact portion and the first spring receiving portion so as to be separated from each other in the first direction. A spring, and
The switching means is provided on the base member or the braking member, and has a restricting portion that restricts rotation of the first pressing member and the second pressing member around the rotation axis. Clutch device. At least one of the first pressing member and the second pressing member has a relative displacement in the rotational axis direction while allowing relative displacement in the first direction of the first pressing member and the second pressing member. And a guide portion for restricting relative displacement in a second direction orthogonal to the first direction and the rotation axis direction,
2. The clutch device according to claim 1, wherein a side surface of at least one of the first pressing member and the second pressing member facing the circumferential direction of the rotation axis serves as the restricting portion.   The clutch device according to claim 2, wherein the second pressing member is the same member as the first pressing member, and is combined with the first pressing member in a posture opposite to the first pressing member. The first pressing member is provided with a long hole penetrating in the rotation axis direction and extending in the first direction,
The first contact portion is formed on an inner wall surface located on one side in the first direction of the inner peripheral surface of the elongated hole,
On the inner wall surface located on the other side in the first direction of the inner peripheral surface of the elongated hole, the first spring receiving portion and a receiving portion constituting a part of the guide portion are formed,
On one side of the first direction of the first pressing member, a sliding contact portion that is partly thinner than the other side of the first direction in the rotational axis direction and forms a part of the guide portion; The clutch device according to claim 3, wherein a protruding portion that protrudes to one side in the first direction from the first contact portion and forms a part of the guide portion is formed. The first pressing member is formed with a first pressed portion that is exposed on the other side in the first direction of the braking member and can be pressed toward the one side in the first direction.
The second pressing member is formed with a second pressed portion that is exposed on one side of the first direction of the braking member and can be pressed toward the other side of the first direction. The clutch device according to any one of claims 1 to 4. The drive source fixed to the base member;
The clutch device according to any one of claims 1 to 5,
An actuator comprising: an output unit that operates in accordance with the rotation of the second rotating body.

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