JP4440701B2 - Rotational driving force transmission mechanism and actuator - Google Patents

Description

  The present invention relates to a rotational driving force transmission mechanism and an actuator using the same.

2. Description of the Related Art Conventionally, there has been known an actuator including a rotational driving force transmission mechanism that is disposed between a driving source and an output mechanism and connects and disconnects the driving source and the output mechanism (for example, Patent Document 1 and Patent Document 2). reference). In the example described in Patent Document 1, an electromagnetic clutch mechanism is provided as a rotational driving force transmission mechanism. The electromagnetic clutch mechanism is electrically turned on / off to connect and disconnect the drive source and the output mechanism.
On the other hand, in the example described in Patent Document 2, a one-way clutch mechanism is provided as a rotational driving force transmission mechanism. The one-way clutch mechanism transmits only rotation in one direction of the drive source to the output mechanism, thereby connecting and disconnecting the drive source and the output mechanism.
JP 2001-37155 A (No. 4-10, FIGS. 1 and 2) JP-A-5-288086 (No. 3-4, FIGS. 1 and 6)

However, as in the example described in Patent Document 1, in an actuator having an electromagnetic clutch mechanism, an electric drive unit (for example, a coil is used to drive a clutch unit that connects and disconnects a drive source and an output mechanism). It is necessary to use an equipped electromagnetic device. For this reason, a separate control circuit for controlling the driving unit and heat generation during driving in the driving unit are problematic.
Further, as in the example described in Patent Document 2, in an actuator having a one-way clutch mechanism, the output mechanism is rotated via the one-way clutch mechanism by the rotation of the drive source. However, when the output mechanism is rotated by an external force, the clutch members are slidably contacted with each other in the one-way clutch mechanism, so that problems such as rotational loss occur due to the slidable contact between the clutch members.

The present invention has been made in view of the above problems, and its object is not to require an electric drive unit as in an electromagnetic clutch mechanism, and to connect and disconnect a drive source and an output mechanism with a simple configuration. An object of the present invention is to provide a rotational driving force transmission mechanism that can be performed and an actuator using the same.
Another object of the present invention is to provide a rotational driving force transmission mechanism capable of completely separating the driving source and the output mechanism without causing the clutch members to slide in contact with each other when the power is cut off, as in the one-way clutch mechanism. And providing an actuator using the same.

  The rotational driving force transmission mechanism of the present invention is opposed to an input-side rotation shaft that is rotated by a drive source, an input-side transmission member that is movably disposed in the axial direction on the input-side rotation shaft, and an input-side transmission member. And an output-side transmission member disposed so as to be rotatable with respect to the input-side rotation shaft. The input-side transmission member is moved to the output-side transmission member side to transmit the input-side transmission member. Rotation drive that can be switched between a power transmission state connected to a member and a power cutoff state in which the input side transmission member is separated from the output side transmission member by moving the input side transmission member to the opposite side of the output side transmission member In the force transmission mechanism, rotation / linear motion converting means for linearly moving the input side transmission member to the output side transmission member side by rotation of the input side rotation shaft, and slidably contacting the input side transmission member and urging the input side transmission member in the radial direction A load applying member, and an input Load applying member in sliding contact with the surface to a transfer member, or at least one of the surfaces to be input side transfer member and the sliding of the load applying member is one constituted by a rough surface.

  The actuator of the present invention includes a motor, a rotational driving force transmission mechanism that can be switched between a power transmission state that transmits the rotational driving force of the motor and a power cutoff state that blocks the rotational driving force of the motor, and a rotational driving force transmission. In an actuator having an output mechanism connected to the opposite side of the motor of the mechanism, the rotational driving force transmission mechanism is arranged so as to be movable in the axial direction on the input side rotating shaft rotated by the motor and the input side rotating shaft. An input-side transmission member provided, an output-side transmission member that is disposed so as to face the input-side transmission member and that is rotatable with respect to the input-side rotation shaft; An input-side transmission member, comprising: a rotation / linear motion conversion unit that linearly moves the transmission member toward the output-side transmission member; and a load applying member that slidably contacts the input-side transmission member and urges the input-side transmission member in the radial direction. With load Surface are members sliding contact, or at least one of the surfaces to be input side transfer member and the sliding of the load applying member is one constituted by a rough surface.

  Thus, according to the present invention, the input side transmission member is moved to the output side transmission member side by the rotation / linear motion conversion means to connect the input side transmission member and the output side transmission member, and the rotation of the input side rotation shaft is performed. Since it is the structure which transmits force to the output side transmission member, it is possible to eliminate an electric drive part (for example, an electromagnetic device provided with a coil) such as an electromagnetic clutch mechanism. As a result, it is possible to eliminate the need for a control circuit for controlling the rotational driving force transmission mechanism as in the case of using an electromagnetic clutch mechanism, and it is possible to eliminate problems such as heat generation. In addition, since the input side transmission member is moved to the output side transmission member by the rotation of the input side rotation shaft by using the rotation / linear motion conversion means, the input side transmission member is moved when the input side rotation shaft is stopped. The power can be shut off by completely separating from the output side transmission member. As a result, it is possible to eliminate problems such as rotation loss caused by the sliding contact between the clutch members as in the case of using the one-way clutch mechanism.

  In addition, since the load applying member that urges the input side transmission member in the radial direction is provided, a resistance force can be applied to the rotation operation of the input side transmission member. Therefore, it is possible to prevent the input-side transmission member from rotating with the input-side rotation shaft when the input-side rotation shaft starts to rotate with the input-side transmission member and the output-side transmission member separated. In this way, a rotational speed difference is generated between the input-side transmission member and the input-side rotation shaft by preventing the input-side transmission member from being rotated, thereby transmitting the rotational motion by the input-side rotation shaft to the input-side transmission. It is possible to reliably convert the linear motion of the member. In particular, at least one of the surface that is in sliding contact with the load applying member of the input side transmission member or the surface that is in sliding contact with the input side transmitting member of the load applying member is constituted by a rough surface. A larger resistance force can be applied to the rotation operation of the transmission member, and it is thereby possible to reliably prevent the input-side transmission member from rotating with the input-side rotation shaft.

At this time, as described in claim 1 and claim 6 , more specifically, the rotation / linear motion converting means is inclined with respect to the rotation center axis of the input side transmission member. Projection guide part formed as a long hole or a long groove extending in the direction (that is, the long axis of both axes of the projection guide part extends obliquely with respect to the rotation center axis of the input side transmission member) And a protrusion that is disposed on the input-side rotation shaft and protrudes in the radial direction of the input-side rotation shaft and is movably engaged with the protrusion guide portion .

In addition , as described in claim 2 and claim 7 , the rotation / linear motion conversion means includes a long hole or a long groove extending in an oblique direction with respect to the rotation center axis of the input side rotation shaft on the input side rotation shaft. (I.e., the long axis of the two axes of the protrusion guide portion is configured to extend obliquely with respect to the rotation center axis of the input-side rotation shaft), and the input-side transmission member And a protrusion that protrudes in the radial direction of the input-side transmission member and that is movably engaged with the protrusion guide portion .

Then , at least one of the surface of the input side transmission member that is in sliding contact with the load application member or the surface of the load application member that is in sliding contact with the input side transmission member is a protrusion guide portion (configured by a long hole or a long groove). If it is composed of a rough surface with a plurality of streaks formed along a direction parallel to the major axis direction, the direction of the streaks is formed, and the protrusion is engaged with the protrusion guide portion to thereby transmit the input side. The direction in which the member moves in the axial direction while rotating can be matched. Therefore, according to this configuration, it is possible to increase the resistance force against the rotation operation of the input side transmission member while suppressing an increase in resistance force against the movement of the input side transmission member in the axial direction. As a result, when the input side rotation member begins to rotate with the input side transmission member and the output side transmission member separated, the input side transmission member is prevented from being rotated with the input side rotation shaft, The side transmission member can be smoothly moved to the output side transmission member.

More specifically, as described in claim 3 and claim 8 , more specifically, the input side transmission member is formed with a hole portion along the axial direction, and the input side rotation shaft is formed in the hole portion. It is loosely inserted.

In addition, as described in claim 4 and claim 9 , a recess is formed at an end of the input side rotating shaft on the output side transmission member side, and the input side transmission member is loosely fitted in the recess. Also good.

Further, as described in claim 5 and claim 10 , the tooth profile that can mesh with each other on the connection surface of the input side transmission member on the output side transmission member side and the connection surface of the output side transmission member on the input side transmission member side If the part is formed, the connection between the input-side transmission member and the output-side transmission member can be further strengthened, which is preferable.

  According to the present invention, the input-side transmission member is moved to the output-side transmission member by the rotation / linear motion converting means to connect the input-side transmission member and the output-side transmission member, and the rotational force of the input-side rotation shaft is transmitted to the output side. Since it is the structure which transmits to a transmission member, it is possible to make an electric drive part (for example, the electromagnetic device provided with the coil etc.) like an electromagnetic clutch mechanism unnecessary. As a result, it is possible to eliminate the need for a control circuit for controlling the rotational driving force transmission mechanism as in the case of using an electromagnetic clutch mechanism, and it is possible to eliminate problems such as heat generation. In addition, since the input side transmission member is moved to the output side transmission member by the rotation of the input side rotation shaft by using the rotation / linear motion conversion means, the input side transmission member is moved when the input side rotation shaft is stopped. The power can be shut off by completely separating from the output side transmission member. As a result, it is possible to eliminate problems such as rotation loss caused by the sliding contact between the clutch members as in the case of using the one-way clutch mechanism.

  In addition, since the load applying member that urges the input side transmission member in the radial direction is provided, a resistance force can be applied to the rotation operation of the input side transmission member. Therefore, it is possible to prevent the input-side transmission member from rotating with the input-side rotation shaft when the input-side rotation shaft starts to rotate with the input-side transmission member and the output-side transmission member separated. In this way, a rotational speed difference is generated between the input-side transmission member and the input-side rotation shaft by preventing the input-side transmission member from being rotated, thereby transmitting the rotational motion by the input-side rotation shaft to the input-side transmission. It is possible to reliably convert the linear motion of the member. In particular, at least one of the surface that is in sliding contact with the load applying member of the input side transmission member or the surface that is in sliding contact with the input side transmitting member of the load applying member is constituted by a rough surface. A larger resistance force can be applied to the rotation operation of the transmission member, and it is thereby possible to reliably prevent the input-side transmission member from rotating with the input-side rotation shaft.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be noted that members, arrangements, and the like described below do not limit the present invention, and it goes without saying that various modifications can be made in accordance with the spirit of the present invention.

(First embodiment)
FIG. 1 to FIG. 8 are views showing a first embodiment of the present invention, FIG. 1 is a cross-sectional view showing a power cut-off state of the actuator, FIG. 2 is a cross-sectional view showing a power transmission state of the actuator, and FIG. FIG. 4 is an exploded view of the transmission mechanism, FIG. 4 is an arrow view including a partial cross section seen from the AA direction in FIG. 3, FIG. 5 is a diagram showing the configuration of the input side transmission member and the friction member, and FIG. FIG. 7 is an explanatory view showing a power cutoff state of the rotational driving force transmission mechanism, and FIG. 8 is an explanatory view showing a power transmission state of the rotational driving force transmission mechanism.

  First, the configuration of the rotational driving force transmission mechanism 20 according to the first embodiment of the present invention and the actuator 1 using the same will be described with reference to FIGS. 1 to 6. As shown in FIGS. 1 and 2, the actuator 1 according to the first embodiment of the present invention includes a motor 10, a rotational driving force transmission mechanism 20, an output mechanism 30, and a housing 40. Yes. The motor 10 is provided with a rotor 11 that is rotatably arranged in a housing 40, and a worm gear 12 is formed on a rotating shaft 11 a of the rotor 11.

  The rotational driving force transmission mechanism 20 includes an input side rotation shaft 21, an input side transmission member 22, an output side transmission member 23, a pin 24 as a protrusion, a worm wheel 25, and a load application member 26. It is configured. The input side rotation shaft 21 is rotatably disposed in the housing 40, and a worm wheel 25 is disposed on the base portion 21 a of the input side rotation shaft 21. The worm gear 12 is engaged with the worm wheel 25, whereby the input-side rotating shaft 21 rotates with the rotation of the worm gear 12.

  A hole 21b penetrating in the radial direction is formed in the base 21a on the output side transmission member 23 side from the position where the worm wheel 25 is disposed, and a pin guide portion 22g described later is formed in the hole 21b. A pin 24 movably engaged with the pin 24 is press-fitted. At this time, as shown in FIG. 4, the pin 24 is press-fitted into the hole portion 21b through a pin guide portion 22g formed in the base member 22b. Both ends of the pin 24 protrude radially outward from both openings of the hole 21b and can be locked with the first locking portion 22h and the second locking portion 22i formed on the pin guide portion 22g. It is like that.

  The input side transmission member 22 includes a gear member 22a and a base member 22b. A recess 22c having a predetermined shape is formed in the gear member 22a, and a base member 22b is press-fitted into the recess 22c. A concave tooth shape portion 22e is formed at an end portion 22d of the gear member 22a on the output side transmission member 23 side, and this tooth shape portion 22e is a convex tooth shape portion formed on the output side transmission member 23 described later. It is possible to mesh with 23c. A hole 22k penetrating in the axial direction is formed in the gear member 22a, and a protrusion 22l of the base member 22b is inserted into the hole 22k.

  A hole 22f penetrating along the axial direction is formed in the base member 22b, and the base 21a of the input side rotating shaft 21 is loosely inserted into the hole 22f. The base member 22b is formed with a pin guide portion 22g (corresponding to a projection guide portion according to the present invention) that penetrates along the radial direction. The pin guide portion 22g is configured by a long hole extending in an oblique direction with respect to the rotation center axis of the base member 22b (that is, the long axis of both the shafts of the pin guide portion 22g is the rotation center axis of the base member 22b). Is configured to extend in an oblique direction with respect to. At this time, the pin 24 protrudes in the radial direction of the input side rotation shaft 21 and is movably engaged with the pin guide portion 22g. With this configuration, when the pin 24 moves along the pin guide portion 22g, the rotational motion of the input side rotation shaft 21 is converted into the linear motion of the input side transmission member 22 in the axial direction.

  The output side transmission member 23 is configured to have a hole portion 23a penetrating in the axial direction, and an extending portion 21c of the input side rotation shaft 21 is rotatably inserted into the hole portion 23a. The output side transmission member 23 is formed with a gear portion 23b provided with a gear along the circumferential direction, and a convex tooth profile portion 23c is formed on the input side transmission member 22 side of the gear portion 23b. ing.

  A concave portion 23d having a diameter larger than that of the hole portion 23a is formed on the input side transmission member 22 side of the tooth shape portion 23c. In this example, a step portion 21d on the input side rotating shaft 21 is formed on the bottom surface of the concave portion 23d. By being locked, the movement of the output side transmission member 23 toward the input side transmission member 22 is restricted. The input side transmission member 22 and the worm wheel 25 are biased toward the output side transmission member 23 by the thrust bearing 27a, and the output side transmission member 23 is biased toward the input side transmission member 22 by the thrust bearing 27b. Has been.

  The load applying member 26 is fixed to the inside of the housing 40 and includes an elastic piece 26a that urges the input-side transmission member 22 radially inward. As shown in FIG. 5, the elastic piece 26 a is slidably contacted with the outer peripheral surface 22 j of the input side transmission member 22 to apply a resistance force to the rotation operation of the input side transmission member 22. At this time, the outer peripheral surface 22j of the gear member 22a is constituted by a rough surface in which a plurality of streaks 22p are formed over the entire circumference along a direction parallel to the major axis direction of the pin guide portion 22g. In this example, since this structure increases the resistance force against the rotation operation of the input side transmission member 22, the input side rotation shaft 21 rotates in a state where the input side transmission member 22 and the output side transmission member 23 are separated. When it starts, it can prevent reliably that the input side transmission member 22 rotates with the input side rotating shaft 21. FIG.

  As described above, the rotational speed difference between the input-side transmission member 22 and the input-side rotation shaft 21 is generated by preventing the input-side transmission member 22 from being rotated, whereby the input-side rotation shaft 21. With this rotation, the pin 24 can be reliably moved along the pin guide portion 22g. In this example, as described above, the pin 24 is moved along the pin guide portion 22g, so that the rotational movement of the input-side rotary shaft 21 is reliably performed in the linear movement of the input-side transmission member 22 in the axial direction. Is converted to

  Further, the streak 22p formed on the outer peripheral surface 22j of the gear member 22a is formed along the direction parallel to the major axis direction of the pin guide portion 22g as described above. The direction in which the input-side transmission member 22 moves in the axial direction while rotating can be matched. Therefore, even if the streaks 22p are provided on the outer peripheral surface 22j, it is possible to suppress an increase in resistance force against the movement of the input side transmission member 22 in the axial direction.

  And in the rotational drive force transmission mechanism 20 of this example, as shown in FIG. 1, when the pin 24 is locked to the first locking portion 22h on the output side transmission member 23 side in the pin guide portion 22g, The input side transmission member 22 is separated from the output side transmission member 23, and the rotational driving force transmission mechanism 20 is in a power cut-off state. On the other hand, as shown in FIG. 2, when the input side rotating shaft 21 rotates and the pin 24 is locked to the second locking portion 22i on the side opposite to the output side transmission member 23 in the pin guide portion 22g, The tooth profile 22e of the side transmission member 22 is engaged with the tooth profile 23c of the output transmission member 23, and the rotational driving force transmission mechanism 20 is in the power transmission state.

  The output mechanism 30 includes a gear 31, a shaft 32, and a handle 33. The shaft 32 passes through the housing 40 and is rotatable with respect to the housing 40. The gear 31 is fixed to the shaft 32 in the housing 40 and meshed with the gear portion 23 b of the output side transmission member 23. One end of the shaft 32 is formed with a threaded portion 32 a to which an external driven mechanism (not shown) is connected, and the other end of the shaft 32 is provided with a handle 33. The handle 33 can be manually rotated from the outside. When the handle 33 is rotated, the gear 31 is rotated together with the shaft 32.

  Next, the operation of the rotational driving force transmission mechanism and the actuator using the same according to the first embodiment of the present invention will be described. FIGS. 7 and 8 are explanatory views showing the operation of the rotational driving force transmission mechanism 20 shown in FIGS. 1 and 2, and gears are provided to facilitate understanding of the positional relationship between the pin 24 and the pin guide portion 22g. The member 22a is indicated by a one-dot chain line. First, as shown in FIGS. 1 and 7, the input side transmission member 22 and the output side transmission member 23 are separated from the input side transmission member 22 and the output side transmission member 23 as shown in FIGS. Operation until the member 23 is connected and the rotational force of the motor 10 is transmitted to the output mechanism 30 via the rotational driving force transmission mechanism 20 will be described.

  As shown in FIGS. 1 and 7, when the pin 24 is locked to the first locking portion 22h of the pin guide portion 22g, the input side transmission member 22 moves to the opposite side to the output side transmission member 23. Thus, the input side transmission member 22 and the output side transmission member 23 are in a separated state. The input-side transmission member 22 is urged radially inward by the load applying member 26, and the input-side transmission member 22 is prevented from rotating with the input-side rotating shaft 21.

  From this state, when the worm wheel 25 is rotated in the R1 direction by the rotation of the motor 10 in a predetermined direction, the input-side rotating shaft 21 is rotated while the load-applying member 26 prevents the input-side transmitting member 22 from being rotated. . Accordingly, the pin 24 moves in the pin guide portion 22g from the first locking portion 22h toward the second locking portion 22i, and the movement of the pin 24 in the pin guide portion 22g causes the input-side transmission member 22 to move. It is pushed up and moved to the output side transmission member 23 side.

  At this time, the streak 22p formed on the outer peripheral surface 22j of the gear member 22a is formed along a direction parallel to the major axis direction of the pin guide portion 22g as described above. Thereby, the formation direction of this stripe | line 22p and the direction which moves to the axial direction can be matched with the input side transmission member 22 rotating. According to this configuration, it is possible to increase the resistance force against the rotation operation of the input side transmission member 22 while suppressing an increase in resistance force against the movement of the input side transmission member 22 in the axial direction. Therefore, when the input side transmission member 22 and the output side transmission member 23 are separated from each other, the input side transmission member 22 is prevented from rotating around the input side rotation shaft 21 when the input side rotation shaft 21 starts to rotate. However, it is possible to smoothly move the input side transmission member 22 to the output side transmission member 23 side.

  As shown in FIGS. 2 and 8, when the pin 24 is locked to the second locking portion 22i, the movement of the input side transmission member 22 toward the output side transmission member 23 is stopped and the input is stopped. The side transmission member 22 is connected to the output side transmission member 23. At this time, the tooth profile part 22e of the input side transmission member 22 and the tooth profile part 23c of the output side transmission member 23 are meshed, and the input side transmission member 22 and the output side transmission member 23 are firmly connected.

  As described above, in a state where the input side transmission member 22 is connected to the output side transmission member 23 and the pin 24 is locked to the second locking portion 22i, the input side rotating shaft 21 is further moved in the R1 direction. If the rotation continues, the input side transmission member 22 rotates together with the input side rotation shaft 21 because the pin 24 is locked to the second locking portion 22i. Thus, when the input side transmission member 22 rotates, this rotational force is transmitted to the output side transmission member 23, and the gear 31 engaged with the gear portion 23 b of the output side transmission member 23 rotates. As a result, the shaft 32 rotates, and an external driven mechanism (not shown) connected to the shaft 32 operates.

  Next, as shown in FIGS. 2 and 8, from the state where the input side transmission member 22 and the output side transmission member 23 are connected, as shown in FIGS. 1 and 7, the input side transmission member 22 and the output side The operation until the transmission member 23 is separated and the rotational force acting on the output mechanism 30 by the external driven mechanism or the handle operation is interrupted in the rotational driving force transmission mechanism 20 will be described.

  As shown in FIGS. 2 and 8, in a state where the pin 24 is locked to the second locking portion 22i of the pin guide portion 22g, the input side transmission member 22 has moved to the output side transmission member 23 side, As described above, the input side transmission member 22 and the output side transmission member 23 are in a connected state. From this state, when the output side transmission member 23 rotates in the R1 direction by rotating the handle 33 from the outside in a predetermined direction or operating an external driven mechanism (not shown), the output side transmission member 23 is rotated. Thus, the input side transmission member 22 also rotates in the R1 direction. At this time, even if the input side transmission member 22 rotates in the R1 direction, only the pin guide portion 22g moves relative to the pin 24, and the rotational force of the output side transmission member 23 is transmitted to the input side rotation shaft 21. Will never be done.

  As described above, when the pin guide portion 22g moves with respect to the pin 24, the inclined surface of the pin guide portion 22g moves with respect to the pin 24, whereby the input side transmission member 22 becomes the output side transmission member. 23 is moved back to the opposite side. At this time, the streak 22p formed on the outer peripheral surface 22j of the gear member 22a is formed along the direction parallel to the major axis direction of the pin guide portion 22g as described above. And the direction in which the input-side transmission member 22 moves in the axial direction while rotating can be matched.

  Therefore, even if the streaks 22p are provided on the outer peripheral surface 22j, it is possible to suppress an increase in resistance force against the movement of the input side transmission member 22 in the axial direction. For this reason, it is possible to smoothly move the input side transmission member 22 in the axial direction from the state where the input side transmission member 22 and the output side transmission member 23 are connected. As shown in FIGS. 1 and 7, when the first locking portion 22 h is locked to the pin 24, the input side transmission member 22 is completely separated from the output side transmission member 23.

  As described above, according to the rotational driving force transmission mechanism 20 of this example, the output side transmission member 23 is moved in the R1 direction by rotating the handle 33 from the outside in a predetermined direction or operating an external driven mechanism (not shown). Since the input side transmission member 22 is separated from the output side transmission member 23, the load of the motor 10 does not act on the output side transmission member 23. Therefore, it is possible to manually operate an external driven mechanism (not shown) connected to the output mechanism 30.

(Second embodiment)
9 and 10 are views showing a rotational driving force transmission mechanism according to the second embodiment of the present invention, FIG. 9 is an exploded view of the rotational driving force transmission mechanism, and FIG. 10 is viewed from the direction BB in FIG. It is an arrow view including a partial cross section. In the rotational driving force transmission mechanism 220 according to the second embodiment of the present invention, the configuration other than the input-side transmission member 222 and the overall operation are the same as the configuration according to the first embodiment, and thus the description thereof is omitted. . In addition, in the rotational driving force transmission mechanism 220 according to the second embodiment, members having the same configuration as the members according to the first embodiment are denoted by the same reference numerals.

  In the rotational driving force transmission mechanism 220 according to the second embodiment of the present invention, the input-side transmission member 222 includes a gear member 222a and a base member 222b. A recess 222c having a predetermined shape is formed in the gear member 222a, and a pin 24 that is press-fitted into the hole 21b of the input-side rotating shaft 21 is accommodated in the recess 222c. A hole 222k penetrating in the axial direction is formed in the gear member 222a, and the protruding portion 222l of the base member 222b is inserted into the hole 222k.

  The base member 222b is formed with a recess 222m that opens to the output-side transmission member 23 side, and the gear member 222a is press-fitted into the recess 222m. A protrusion 222l is formed in the center of the recess 222m so as to protrude toward the output side transmission member 23 along the axial direction. A hole 222f penetrating in the axial direction is formed in the protrusion 222l. . The base portion 21a of the input side rotation shaft 21 is loosely inserted into the hole portion 222f.

  The base member 222b is formed with a pin guide portion 222g penetrating along the radial direction. As in the first embodiment, the pin guide portion 222g is configured by a long hole extending in an oblique direction with respect to the rotation center axis of the base member 222b (that is, the long length of both shafts of the pin guide portion 222g is long). The shaft is configured to extend obliquely with respect to the rotation center axis of the base member 222b). At this time, the pin 24 protrudes in the radial direction of the input side rotating shaft 21 and is movably engaged with the pin guide portion 222g.

  With this configuration, when the pin 24 moves along the pin guide portion 222g, the rotational motion of the input-side rotary shaft 21 is converted into the linear motion of the input-side transmission member 222 in the axial direction. In the rotational driving force transmission mechanism 220 according to the second embodiment, as shown in FIG. 9, the pin 24 is press-fitted into the hole portion 21b through the pin guide portion 222g, and then the gear member 222a is inserted into the base member 222b. Is pressed into the recess 222m.

  The elastic piece 26 a of the load applying member 26 is in sliding contact with the outer peripheral surface 222 j of the input side transmission member 222, thereby applying a resistance force to the rotation operation of the input side transmission member 222. At this time, the outer peripheral surface 222j of the base member 222b is constituted by a rough surface in which a plurality of streaks 222p are formed over the entire circumference along a direction parallel to the major axis direction of the pin guide portion 222g. In this example, this configuration increases the resistance force against the rotational operation of the input-side transmission member 222, so that the input-side rotation shaft 21 rotates with the input-side transmission member 222 and the output-side transmission member 23 separated. When it starts, it can prevent reliably that the input side transmission member 22 rotates with the input side rotating shaft 21. FIG.

  As described above, the rotational speed difference between the input-side transmission member 222 and the input-side rotation shaft 21 is prevented by preventing the input-side transmission member 222 from being rotated, whereby the input-side rotation shaft 21. With this rotation, the pin 24 can be reliably moved along the pin guide portion 222g. In this example, as described above, the pin 24 is moved along the pin guide portion 222g, so that the rotational movement of the input-side rotary shaft 21 can be reliably performed in the linear movement of the input-side transmission member 222 in the axial direction. Is converted to

  Further, as described above, the stripe 222p formed on the outer peripheral surface 222j of the gear member 222a is formed along the direction parallel to the major axis direction of the pin guide portion 222g. The direction in which the input side transmission member 222 moves in the axial direction while rotating can be matched. Therefore, even if the outer surface 222j is provided with the streak 222p, it is possible to suppress an increase in resistance force against the movement of the input side transmission member 222 in the axial direction.

  In the rotational driving force transmission mechanism 220 of this example, when the pin 24 is locked to the first locking portion 222h on the output side transmission member 23 side in the pin guide portion 222g, the input side transmission member 222 outputs. It will be in the state isolate | separated from the side transmission member 23, and the rotational drive force transmission mechanism 220 will be in a power cutoff state. On the other hand, when the input-side rotating shaft 21 rotates and the pin 24 is locked to the second locking portion 222i on the opposite side of the output-side transmission member 23 in the pin guide portion 222g, the tooth profile portion of the input-side transmission member 222 22e is engaged with the tooth profile 23c of the output side transmission member 23, and the rotational driving force transmission mechanism 220 is in a power transmission state.

(Third embodiment)
11 and 12 are views showing a third embodiment of the present invention. FIG. 11 is an exploded view of the rotational driving force transmission mechanism, and FIG. 12 is an arrow view including a partial cross section seen from the CC direction of FIG. FIG. In the rotational driving force transmission mechanism 320 according to the third embodiment of the present invention, the configuration and overall operation other than the input-side transmission member 322 are the same as the configuration according to the above-described embodiment, and thus description thereof is omitted. In addition, in the rotational driving force transmission mechanism 320 according to the third embodiment, members having the same configuration as the members according to the above embodiment are denoted by the same reference numerals.

  In the rotational driving force transmission mechanism 320 according to the third embodiment of the present invention, the input-side transmission member 322 includes a gear member 222a and a base member 322b. The pin 24 to be press-fitted into the hole 321b of the base member 322b is accommodated in the recess 222c of the gear member 222a. The protrusion 222l of the base member 322b is inserted into the hole 222k of the gear member 222a, and the gear member 222a is press-fitted into the recess 222m of the base member 322b.

  The input-side rotation shaft 321 is formed with a pin guide portion 322g that penetrates along the radial direction. The pin guide portion 322g is configured by a long hole extending in an oblique direction with respect to the rotation center axis of the input side rotation shaft 321 (that is, the long axis of both the shafts of the pin guide portion 322g is the input side rotation shaft 321). Are configured to extend in an oblique direction with respect to the rotation center axis. At this time, the pin 24 protrudes in the radial direction of the input side transmission member 322 and is movably engaged with the pin guide portion 322g.

  With this configuration, when the pin 24 moves along the pin guide portion 322g, the rotational motion of the input-side rotary shaft 21 is converted into the linear motion of the input-side transmission member 22 in the axial direction. In the rotational driving force transmission mechanism 320 according to the third embodiment, as shown in FIG. 11, the pin 24 is press-fitted into the hole portion 321b through the pin guide portion 322g, and then the gear member 222a is moved to the base member 322b. Is pressed into the recess 222m.

  The outer peripheral surface 322j of the base member 322b is configured by a rough surface in which a plurality of streaks 322p are formed over the entire circumference along a direction parallel to the major axis direction of the pin guide portion 322g. In this example, this configuration increases the resistance force against the rotational operation of the input side transmission member 322, so that the input side rotation shaft 321 rotates with the input side transmission member 322 and the output side transmission member 23 separated. When it starts, it can prevent reliably that the input side transmission member 322 rotates with the input side rotating shaft 321. FIG.

  In addition, the streak 322p formed on the outer peripheral surface 322j of the gear member 322a is formed along the direction parallel to the major axis direction of the pin guide portion 322g as described above. The direction in which the input-side transmission member 322 moves in the axial direction while rotating can be matched. Accordingly, even if the streaks 322p are provided on the outer peripheral surface 322j, an increase in the resistance force against the movement of the input side transmission member 322 in the axial direction can be suppressed.

  In the rotational driving force transmission mechanism 320 of this example, when the pin 24 is locked to the first locking portion 322h on the output side transmission member 23 side of the pin guide portion 322g, the tooth profile of the input side transmission member 322 is obtained. The portion 22e is engaged with the tooth profile portion 23c of the output side transmission member 23, and the rotational driving force transmission mechanism 320 is in a power transmission state. On the other hand, when the pin 24 is locked to the second locking portion 322i on the side opposite to the output side transmission member 23 in the pin guide portion 322g, the input side transmission member 22 is separated from the output side transmission member 23, The rotational driving force transmission mechanism 320 is in a power cutoff state.

(Fourth embodiment)
FIG. 13 is an explanatory diagram (power cutoff state) showing the configuration of the rotational driving force transmission mechanism according to the fourth embodiment of the present invention. In the rotational driving force transmission mechanism 420 according to the fourth embodiment of the present invention, the configuration and overall operation other than the input-side transmission member 422 and the load application member 426 are the same as the configuration according to the above-described embodiment. Is omitted. In addition, in the rotational driving force transmission mechanism 420 according to the fourth embodiment, members having the same configuration as the members according to the above embodiment are denoted by the same reference numerals.

  In the rotational driving force transmission mechanism 420 according to the fourth embodiment of the present invention, a recess 422o is formed at the end 422n of the gear member 422a opposite to the output-side transmission member 23. The load applying member 426 is fixed to the inside of the housing 40 (see FIG. 1) and includes an elastic piece 426a that urges the input-side transmission member 422 radially outward.

  The elastic piece 426a of the load applying member 426 makes a resistance force to the rotational operation of the input side transmission member 422 by slidingly contacting the inner peripheral surface 422j of the recess 422o in the gear member 422a. At this time, the inner peripheral surface 422j of the gear member 422a is constituted by a rough surface in which a plurality of streaks (not shown) are formed over the entire circumference along a direction parallel to the major axis direction of the pin guide portion 22g. Yes. In this example, this configuration increases the resistance force against the rotational operation of the input-side transmission member 422. Therefore, the input-side rotation shaft 21 rotates while the input-side transmission member 422 and the output-side transmission member 23 are separated. When it starts, it can prevent reliably that the input side transmission member 422 rotates with the input side rotating shaft 21. FIG.

  Then, as described above, the rotation speed difference between the input side transmission member 422 and the input side rotation shaft 21 is generated by preventing the input side transmission member 422 from being rotated, whereby the input side rotation shaft 21. With this rotation, the pin 24 can be reliably moved along the pin guide portion 22g. In this example, as described above, the pin 24 is moved along the pin guide portion 22g, so that the rotational movement of the input-side rotary shaft 21 is reliably performed in the linear movement of the input-side transmission member 422 in the axial direction. Is converted to

  Further, since the streak (not shown) formed on the inner peripheral surface 422j of the gear member 422a is formed along the direction parallel to the major axis direction of the pin guide portion 22g as described above, this streak ( The direction in which the input side transmission member 422 moves in the axial direction can be made to coincide with each other. Therefore, even if a streak (not shown) is provided on the inner peripheral surface 422j, an increase in resistance force against the movement of the input-side transmission member 422 in the axial direction can be suppressed.

(Fifth embodiment)
14 and 15 are diagrams showing a configuration of a rotational driving force transmission mechanism according to a fifth embodiment of the present invention, FIG. 14 is a diagram showing a power cut-off state, and FIG. 15 is a diagram showing a power transmission state. In the rotational driving force transmission mechanism 520 according to the fifth embodiment, members having the same configuration as the members according to the above embodiment are denoted by the same reference numerals.

  In the rotational driving force transmission mechanism 520 according to the fifth embodiment of the present invention, a concave portion 521f is formed in the end portion 521e of the input side rotation shaft 521 on the output side transmission member 523 side, and the concave portion 521f has an input side. A transmission member 522 is loosely fitted. The input side rotation shaft 521 is formed with a pin 524 that protrudes inward in the radial direction of the recess 521f. The pin 524 is movably engaged with a pin guide portion 522g formed on the input side transmission member 522. ing.

  The pin guide portion 522g has an opening on the radially outer side of the input side transmission member 522 and is configured by a long groove extending in an oblique direction with respect to the rotation center axis of the input side transmission member 522 (that is, the pin guide portion 522g). The long axis is configured to extend obliquely with respect to the rotation center axis of the input side transmission member 522). With this configuration, when the pin 524 moves along the pin guide portion 522g, the rotational motion of the input-side rotation shaft 521 is converted into the linear motion of the input-side transmission member 522 in the axial direction.

  A concave tooth profile 522e is formed at the end 522d of the input transmission member 522 on the output transmission member 523 side, and this tooth profile 522e is a convex tooth profile formed on the output transmission member 523. It is possible to mesh with 523c. The output-side transmission member 523 has an output-side rotation shaft 523e extending in the axial direction, and is rotatable with respect to the input-side rotation shaft 521 by the output-side rotation shaft 523e. The output side transmission member 523 is formed with a gear portion 523b provided with a gear along the circumferential direction, and a convex tooth profile portion 523c is formed on the input side transmission member 522 side of the gear portion 523b. ing.

  The elastic piece 26 a of the load applying member 26 is to make a resistance force against the rotational operation of the input side transmission member 522 by slidingly contacting the outer peripheral surface 522 j of the input side transmission member 522. At this time, the outer peripheral surface 522j of the input side transmission member 522 is constituted by a rough surface in which a plurality of streaks (not shown) are formed over the entire circumference along a direction parallel to the major axis direction of the pin guide portion 522g. ing. In this example, since this structure increases the resistance force against the rotational operation of the input side transmission member 522, the input side rotation shaft 521 rotates in a state where the input side transmission member 522 and the output side transmission member 523 are separated. When it starts, it can prevent reliably that the input side transmission member 522 rotates with the input side rotating shaft 521.

  Further, as described above, the streaks (not shown) formed on the outer peripheral surface 522j of the input side transmission member 522 are formed along the direction parallel to the major axis direction of the pin guide portion 522g. The formation direction (not shown) can coincide with the direction in which the input-side transmission member 522 moves in the axial direction while rotating. Therefore, even if a streak (not shown) is provided on the outer peripheral surface 522j, an increase in resistance force against the movement of the input-side transmission member 522 in the axial direction can be suppressed.

  In the rotational driving force transmission mechanism 520 of this example, as shown in FIG. 14, when the pin 524 is locked to the first locking portion 522h on the output side transmission member 523 side in the pin guide portion 522g, The input side transmission member 522 is separated from the output side transmission member 523, and the rotational driving force transmission mechanism 520 is in a power cut-off state. On the other hand, as shown in FIG. 15, when the input side rotating shaft 521 rotates and the pin 524 is locked to the second locking portion 522i opposite to the output side transmission member 523 in the pin guide portion 522g, The tooth profile 522e of the side transmission member 522 is engaged with the tooth profile 523c of the output transmission member 523, and the rotational driving force transmission mechanism 520 is in the power transmission state.

(Sixth embodiment)
16 and 17 are diagrams showing a configuration of the rotational driving force transmission mechanism according to the sixth embodiment of the present invention, FIG. 16 is a diagram showing a power cut-off state, and FIG. 17 is a diagram showing a power transmission state. In the rotational driving force transmission mechanism 620 according to the sixth embodiment, members having the same configuration as the members according to the above embodiment are denoted by the same reference numerals.

  In the rotational driving force transmission mechanism 620 according to the sixth embodiment of the present invention, the input-side transmission member 622 is formed with a pin 624 protruding outward in the radial direction, and is formed on the inner peripheral portion of the recess 521f on the input-side rotation shaft 621. The pin guide portion 622g is formed.

  The pin guide portion 622g is configured by a long groove having an opening on the radially inner side of the input side transmission member 622 and extending obliquely with respect to the rotation center axis of the input side rotation shaft 621 (that is, the pin guide portion 622g). The long axis is configured to extend obliquely with respect to the rotation center axis of the input side transmission member 622). The pin 624 protrudes in the radial direction of the input side transmission member 622 and is movably engaged with the pin guide portion 622g. With this configuration, when the pin 624 moves along the pin guide portion 622g, the rotational motion of the input-side rotational shaft 621 is converted into the linear motion of the input-side transmission member 622 in the axial direction.

  The elastic piece 26 a of the load applying member 26 is in sliding contact with the outer peripheral surface 622 j of the input side transmission member 622, thereby applying a resistance force to the rotation operation of the input side transmission member 622. At this time, the outer peripheral surface 622j of the input side transmission member 622 is constituted by a rough surface in which a plurality of streaks (not shown) are formed over the entire circumference along a direction parallel to the major axis direction of the pin guide portion 622g. ing. In this example, this configuration increases the resistance force against the rotational operation of the input side transmission member 622, so that the input side rotation shaft 621 rotates with the input side transmission member 622 and the output side transmission member 523 separated. When it starts, it can prevent reliably that the input side transmission member 622 rotates with the input side rotating shaft 621.

  Further, as described above, the streaks (not shown) formed on the outer peripheral surface 622j of the input side transmission member 622 are formed along the direction parallel to the long axis direction of the pin guide portion 622g. The direction in which (not shown) is formed can coincide with the direction in which the input-side transmission member 622 moves in the axial direction while rotating. Therefore, even if a streak (not shown) is provided on the outer peripheral surface 622j, an increase in resistance force against the movement of the input-side transmission member 622 in the axial direction can be suppressed.

  And in the rotational drive force transmission mechanism 620 of this example, as shown in FIG. 16, when the pin 624 is latched by the second latching | locking part 622i on the opposite side to the output side transmission member 523 in the pin guide part 622g. In addition, the input side transmission member 622 is separated from the output side transmission member 523, and the rotational driving force transmission mechanism 620 is in a power cut-off state. On the other hand, as shown in FIG. 17, when the input side rotation shaft 621 rotates and the pin 624 is locked to the first locking portion 622h on the output side transmission member 523 side in the pin guide portion 622g, the input side transmission is performed. The tooth profile 522e of the member 622 is engaged with the tooth profile 523c of the output transmission member 523, and the rotational driving force transmission mechanism 620 is in the power transmission state.

As described above, according to the present embodiment, the following effects are obtained.
(B) According to the present embodiment, the rotation-linear motion conversion means (configured by the pin 24 and the pin guide portion 22g) having a mechanical configuration for converting the rotational motion into the linear motion in the axial direction allows the input side The rotational motion of the rotary shaft 21 is converted into the linear motion of the input-side transmission member 22, whereby the input-side transmission member 22 is moved in the direction of the rotational axis to connect the input-side transmission member 22 and the output-side transmission member 23. Since it is the structure which transmits and the rotational force of the input side rotating shaft 21 is transmitted to the output side transmission member 23, electrical drive parts (for example, the electromagnetic device provided with the coil etc.) like an electromagnetic clutch mechanism are unnecessary. Is possible. This makes it possible to eliminate the need for a control circuit for controlling the electromagnetic clutch mechanism, as in the case of using the electromagnetic clutch mechanism, and to solve problems such as heat generation.

  (B) According to the present embodiment, the input side transmission member 22 is moved in the axial direction by the rotation / linear motion conversion means (configured by the pin 24 and the pin guide portion 22g). When the motor is stopped, the input side transmission member 22 can be completely separated from the output side transmission member 23 to cut off the power. As a result, it is possible to eliminate problems such as rotation loss caused by the sliding contact between the clutch members as in the case of using the one-way clutch mechanism.

  (C) According to this embodiment, since the load applying member 26 that urges the input side transmission member 22 in the radial direction is provided, a resistance force is applied to the rotation operation of the input side transmission member 22. be able to. Therefore, when the input side transmission member 22 and the output side transmission member 23 are separated from each other, the input side transmission member 22 is prevented from rotating around the input side rotation shaft 21 when the input side rotation shaft 21 starts to rotate. can do. In this way, the rotation of the input side rotating shaft 21 is prevented by generating a rotational speed difference between the input side transmitting member 22 and the input side rotating shaft 21 by preventing the input side transmitting member 22 from being rotated. Accordingly, the pin 24 can be reliably moved along the pin guide portion 22g. In this way, by moving the pin 24 along the pin guide portion 22g, it is possible to convert the rotational motion of the input-side rotating shaft 21 into the linear motion of the input-side transmitting member 22 in the axial direction. It becomes.

  (D) According to the present embodiment, the outer peripheral surface 22j of the gear member 22a is a rough surface in which a plurality of lines 22p are formed over the entire circumference along a direction parallel to the major axis direction of the pin guide portion 22g. Since it is comprised by the surface, the resistance force with respect to rotation operation of the input side transmission member 22 can be increased. Thereby, when the input side rotating shaft 21 starts to rotate in a state where the input side transmitting member 22 and the output side transmitting member 23 are separated, the input side transmitting member 22 is rotated with the input side rotating shaft 21. It can be surely prevented. Further, the streak 22p formed on the outer peripheral surface 22j of the gear member 22a is formed along the direction parallel to the major axis direction of the pin guide portion 22g as described above. The direction in which the input-side transmission member 22 moves in the axial direction while rotating can be matched. Therefore, even if the streaks 22p are provided on the outer peripheral surface 22j, it is possible to suppress an increase in resistance force against the movement of the input side transmission member 22 in the axial direction.

  (E) According to the present embodiment, the connection surface of the input side transmission member 22 on the output side transmission member 23 side and the connection surface of the output side transmission member 23 on the input side transmission member 22 side can be engaged with each other. Since the tooth profile portions 22e and 23c are formed, the connection between the input side transmission member 22 and the output side transmission member 23 can be further strengthened.

  (F) Further, as in the present embodiment, the load applying member 26 is constituted by an elastic body having an elastic piece 26 a and is disposed between the inside of the housing 40 and the outer peripheral portion of the input side transmission member 22. In this case, it is possible to apply a sufficient load to the input side transmission member 22 even with a small elastic force in the load applying member 26.

  (G) As in the fourth embodiment, the load applying member 426 is disposed radially outside the outer peripheral portion of the input-side rotating shaft 21 and radially inner than the outer peripheral portion of the input-side transmission member 422. If it is, it becomes possible to achieve size reduction of an apparatus.

The embodiment of the present invention can be modified as follows.
(A) In the above embodiment, the rotational driving force transmission mechanism 20 is provided in the actuator 1, and the input side rotary shaft 21 of the rotational driving force transmission mechanism 20 is rotated by the motor 10 (that is, the driving source is the motor 10). However, the rotational driving force transmission mechanism 20 according to the present invention is not limited to this. In addition, the rotational driving force transmission mechanism 20 may be used in a configuration in which the input side rotation shaft 21 is manually rotated.

  (B) In the above embodiment, the pin guide portion 22g has been described as having a long hole, but the present invention is not limited to this. In addition, the pin guide portion 22g may be constituted by a long groove. Further, although the pin guide portion 22g is illustrated as being formed of a linear long hole, the present invention is not limited to this. In addition, the pin guide portion 22g may be formed in a spiral shape. Further, the pin guide portion 322g formed on the input side rotating shaft 321 may also be a long groove or a spiral groove.

  (C) In the above-described embodiment, the plurality of lines 22p are described as being formed on the outer peripheral surface 22j that is in sliding contact with the load applying member 26 of the input-side transmission member 22, but the present invention is limited to this. It is not a thing. In addition, streaks may be formed on the surface of the load applying member 26 that is in sliding contact with the input-side transmission member 22. Further, streaks may be formed on both the surface of the input side transmission member 22 that is in sliding contact with the load application member 26 and the surface of the load application member 26 that is in sliding contact with the input side transmission member 22. In the above embodiment, the streak 22p has been described as being formed along a direction parallel to the major axis direction of the pin guide portion 22g. However, this is the most preferable mode, and the streak formation angle varies. Of course, it can be modified. However, when the streak is formed along the circumferential direction (that is, the direction orthogonal to the rotation axis of the input-side transmission member 22), the resistance force against the movement of the input-side transmission member 22 in the axial direction is preferably increased. Absent.

The technical ideas other than the claims that can be grasped from the above embodiments will be described below.
(1) The load application member is disposed radially outside the outer peripheral portion of the input-side rotation shaft and radially inner than the outer peripheral portion of the input-side transmission member. Rotational driving force transmission mechanism.

  (2) The load applying member is disposed radially outside the outer peripheral portion of the input-side rotating shaft and radially inner than the outer peripheral portion of the input-side transmission member. Actuator.

  As described above, when the load applying member is disposed radially outside the outer peripheral portion of the input-side rotation shaft and radially inner than the outer peripheral portion of the input-side transmission member, the apparatus is reduced in size in the radial direction. Can be achieved.

  (3) The apparatus further includes a housing that accommodates the rotational driving force transmission mechanism, and the load applying member is formed of an elastic body and is disposed between the inside of the housing and the outer peripheral portion of the input side transmission member. The actuator according to any one of claims 8 to 14, wherein the actuator is formed.

  As described above, the apparatus further includes a housing that accommodates the rotational driving force transmission mechanism, and the load applying member is formed of an elastic body and is disposed between the inside of the housing and the outer peripheral portion of the input-side transmission member. Arrangement is preferable because a sufficient load can be applied to the input side transmission member even with a small elastic force in the load application member.

It is sectional drawing (power interruption | blocking state) which shows the structure of the actuator which concerns on 1st embodiment. It is sectional drawing (power transmission state) which shows the structure of the actuator which concerns on 1st embodiment. It is an exploded view of the rotational drive force transmission mechanism which concerns on 1st embodiment. It is an arrow view including the partial cross section seen from the AA direction of FIG. It is a figure which shows the structure of the input side transmission member and friction member which concern on 1st embodiment. It is the arrow line view seen from the HH direction of FIG. It is a 1st explanatory view (power interception state) showing operation of a rotation driving force transmission mechanism concerning a first embodiment. It is a 2nd explanatory view (power transmission state) showing operation of a rotation driving force transmission mechanism concerning a first embodiment. It is an exploded view of the rotational drive force transmission mechanism which concerns on 2nd embodiment. It is an arrow line view including the partial cross section seen from the BB direction of FIG. It is an exploded view of the rotational drive force transmission mechanism which concerns on 3rd embodiment. It is an arrow line view including the partial cross section seen from CC direction of FIG. It is explanatory drawing (power interruption | blocking state) which shows the structure of the rotational drive force transmission mechanism which concerns on 4th embodiment. It is a 1st explanatory view (power interception state) showing the composition of the rotation driving force transmission mechanism concerning a 5th embodiment. It is a 2nd explanatory view (power transmission state) showing the composition of the rotation driving force transmission mechanism concerning a 5th embodiment. It is a 1st explanatory view (power interception state) showing the composition of the rotation driving force transmission mechanism concerning a 6th embodiment. It is a 2nd explanatory view (power transmission state) showing the composition of the rotation driving force transmission mechanism concerning a 6th embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Actuator, 10 Motor, 11 Rotor, 11a Rotating shaft, 12 Worm gear, 20, 220, 320, 420, 520, 620 Rotation driving force transmission mechanism, 21, 321, 521, 621 Input side rotating shaft, 21a Base, 21b , 321b hole part, 21c extension part, 21d step part, 22, 222, 322, 422, 522, 622 input side transmission member, 22a, 222a, 422a gear member, 22b, 222b, 322b base member, 22c, 222c recess 22d, 522d End, 22e, 522e Tooth profile, 22f, 222f Hole, 22g, 222g, 322g, 522g, 622g Pin guide, 22h, 222h, 322h, 522h, 622h First locking portion, 22i, 222i , 322i, 522i, 622i Second locking portion 22j, 222j, 322j, 522j Outer peripheral surface, 22k, 222k hole, 22l, 222l Protruding part, 22p, 222p, 322p Muscle, 23,523 Output side transmission member, 23a Hole, 23b, 523b Gear part, 23c, 523c Tooth profile portion, 23d recess, 24,524,624 pin, 25 worm wheel, 26,426 load applying member, 26a, 426a elastic piece, 27a thrust bearing, 27b thrust bearing, 30 output mechanism, 31 gear, 32 shaft, 32a screw Part, 33 handle, 40 housing, 222m recessed part, 422j inner peripheral surface, 422o recessed part, 422n end part, 521e end part, 521f recessed part, 523e output side rotating shaft

Claims (10)

An input-side rotation shaft that is rotated by a drive source, an input-side transmission member that is axially movable on the input-side rotation shaft, and the input-side transmission member that is disposed opposite to the input-side transmission member An output-side transmission member arranged to be rotatable with respect to the rotation shaft,
A power transmission state in which the input-side transmission member is moved to the output-side transmission member and the input-side transmission member is connected to the output-side transmission member; and the input-side transmission member is opposite to the output-side transmission member In the rotational driving force transmission mechanism that can be switched to a power cutoff state in which the input side transmission member is separated from the output side transmission member by moving to
Rotation / linear motion conversion means for linearly moving the input side transmission member to the output side transmission member side by rotation of the input side rotation shaft;
A load applying member that is in sliding contact with the input side transmission member and biases the input side transmission member in a radial direction;
The rotation / linear motion conversion means includes:
A projection guide portion formed as a long hole or a long groove extending in an oblique direction with respect to the rotation center axis of the input side transmission member on the input side transmission member;
A projecting portion that is disposed on the input-side rotation shaft and protrudes in a radial direction of the input-side rotation shaft and is movably engaged with the projection guide portion;
At least one of the surface in sliding contact with the load application member of the input transmission member or the surface in sliding contact with the input transmission member of the load application member is parallel to the major axis direction of the protrusion guide portion. A rotational driving force transmission mechanism comprising a rough surface formed with a plurality of streaks along a direction . An input-side rotation shaft that is rotated by a drive source, an input-side transmission member that is axially movable on the input-side rotation shaft, and the input-side transmission member that is disposed opposite to the input-side transmission member An output-side transmission member arranged to be rotatable with respect to the rotation shaft,
A power transmission state in which the input-side transmission member is moved to the output-side transmission member and the input-side transmission member is connected to the output-side transmission member; and the input-side transmission member is opposite to the output-side transmission member In the rotational driving force transmission mechanism that can be switched to a power cutoff state in which the input side transmission member is separated from the output side transmission member by moving to
Rotation / linear motion conversion means for linearly moving the input side transmission member to the output side transmission member side by rotation of the input side rotation shaft;
A load applying member that is in sliding contact with the input side transmission member and biases the input side transmission member in a radial direction;
The rotation / linear motion conversion means includes:
A projection guide portion formed as a long hole or a long groove extending in an oblique direction with respect to the rotation center axis of the input side rotation shaft on the input side rotation shaft;
A projection portion disposed on the input side transmission member and projecting in a radial direction of the input side transmission member and movably engaged with the projection guide portion;
At least one of the surface in sliding contact with the load application member of the input transmission member or the surface in sliding contact with the input transmission member of the load application member is parallel to the major axis direction of the protrusion guide portion. A rotational driving force transmission mechanism comprising a rough surface formed with a plurality of streaks along a direction . A hole is formed in the input side transmission member along the axial direction,
The input rotary shaft, the rotational drive force transmission mechanism according to claim 1 or claim 2, characterized in that it is loosely inserted into the hole. A concave portion is formed at an end portion on the output side transmission member side of the input side rotation shaft,
The input-side transmission member, the rotational driving force transmission mechanism according to claim 1 or claim 2, characterized in that it is loosely fitted in the recess. The tooth-shaped portion that can mesh with each other is formed on a connection surface on the output-side transmission member side of the input-side transmission member and a connection surface on the input-side transmission member side of the output-side transmission member. The rotational driving force transmission mechanism according to any one of claims 1 to 4 . A motor,
A rotational driving force transmission mechanism capable of switching between a power transmission state for transmitting the rotational driving force of the motor and a power cutoff state for interrupting the rotational driving force of the motor;
An output mechanism connected to the opposite side of the motor of the rotational driving force transmission mechanism,
The rotational driving force transmission mechanism includes an input side rotation shaft that is rotated by the motor;
An input-side transmission member disposed on the input-side rotation shaft so as to be movable in the axial direction;
An output-side transmission member that is disposed to face the input-side transmission member and that is rotatably arranged with respect to the input-side rotation shaft;
Rotation / linear motion conversion means for linearly moving the input side transmission member to the output side transmission member side by rotation of the input side rotation shaft;
A load applying member that is in sliding contact with the input side transmission member and biases the input side transmission member in a radial direction;
The rotation / linear motion conversion means includes a projection guide portion formed as a long hole or a long groove extending in an oblique direction with respect to the rotation center axis of the input side transmission member on the input side transmission member;
A projecting portion that is disposed on the input-side rotation shaft and protrudes in a radial direction of the input-side rotation shaft and is movably engaged with the projection guide portion;
At least one of the surface in sliding contact with the load application member of the input transmission member or the surface in sliding contact with the input transmission member of the load application member is parallel to the major axis direction of the protrusion guide portion. An actuator comprising a rough surface formed with a plurality of streaks along a direction . A motor,
A rotational driving force transmission mechanism capable of switching between a power transmission state for transmitting the rotational driving force of the motor and a power cutoff state for interrupting the rotational driving force of the motor;
An output mechanism connected to the opposite side of the motor of the rotational driving force transmission mechanism,
The rotational driving force transmission mechanism includes an input side rotation shaft that is rotated by the motor;
An input-side transmission member disposed on the input-side rotation shaft so as to be movable in the axial direction;
An output-side transmission member that is disposed to face the input-side transmission member and that is rotatably arranged with respect to the input-side rotation shaft;
Rotation / linear motion conversion means for linearly moving the input side transmission member to the output side transmission member side by rotation of the input side rotation shaft;
A load applying member that is in sliding contact with the input side transmission member and biases the input side transmission member in a radial direction;
The rotation / linear motion conversion means includes:
A projection guide portion formed as a long hole or a long groove extending in an oblique direction with respect to the rotation center axis of the input side rotation shaft on the input side rotation shaft;
A projection portion disposed on the input side transmission member and projecting in a radial direction of the input side transmission member and movably engaged with the projection guide portion;
At least one of the surface in sliding contact with the load application member of the input transmission member or the surface in sliding contact with the input transmission member of the load application member is parallel to the major axis direction of the protrusion guide portion. An actuator comprising a rough surface formed with a plurality of streaks along a direction . A hole is formed in the input side transmission member along the axial direction,
The actuator according to claim 6 or 7 , wherein the input-side rotation shaft is loosely inserted into the hole. A concave portion is formed at an end portion on the output side transmission member side of the input side rotation shaft,
The actuator according to claim 6 or 7 , wherein the input-side transmission member is loosely fitted in the recess. Claim the connecting surface of the input side transfer member of the output side transfer member side of the connecting surface and the output side transfer member of the input-side transmission member, characterized in that the toothed possible tooth portion is formed to each other The actuator according to any one of claims 6 to 9 .

Images