JP6994827B2 - Transmission device for rotation drive - Google Patents

Description

The present invention relates to a rotary drive transmission device including a plurality of rotary members.

A rotary drive transmission device provided with a plurality of rotary members is used in an automatic transmission or the like of a vehicle or the like, and the plurality of rotary members are incorporated so as to be able to smoothly and reliably transmit power. .. For example, as described in Patent Document 1, in a multi-plate clutch or a multi-plate brake which is a multi-plate friction engaging element, a plurality of separator plates on the input side and a plurality of friction plates on the output side are alternately alternated as rotating members. The plates are arranged in the same place, and the plates are crimped to each other to transmit power. Further, as described in Patent Document 2, in a speed change mechanism using a dog clutch, a speed change operation is performed by engaging a dog tooth and a dog tooth engaging portion provided between the speed change gears. ing.

Japanese Unexamined Patent Publication No. 2016-125556 Japanese Unexamined Patent Publication No. 2014-163484

In a multi-plate clutch as described in Patent Document 1, it is necessary to provide a plurality of friction engagement plates and an engagement hydraulic mechanism in order to secure a predetermined torque capacity, and the number of friction engagement plates is large. As it increases, there is a problem that the drag torque increases between the friction engagement plates when they are not engaged. In order to reduce such drag torque, some measures have been taken to make the shape of the friction engagement plate a wave shape, but the current situation is that sufficient effects have not been obtained. Further, there is a problem that hydraulic pressure must be constantly applied in order to maintain the engaged state of the friction engagement plate, and it is necessary to provide a pressurizing mechanism for that purpose.

In a dog clutch as described in Patent Document 2, since the rotational drive is transmitted by the engagement between the dog tooth and the dog tooth engaging portion, the drag torque as described above is not generated, but the dog tooth It is necessary to secure a space for moving the engaging portion in the rotation axis direction, and there is a problem that it is difficult to miniaturize the device in the axial direction. Further, it is difficult to absorb the difference in rotation between the dog teeth and the dog tooth engaging portion when they are engaged, and there is a problem that damage and a striking sound are inevitably generated when the dog teeth are engaged.

Therefore, the present invention can reduce the rotation difference at the time of engagement to smoothly realize the engaged state while having the function of reducing the drag torque, and prevent the device from becoming larger in the direction of the center axis of rotation. It is an object of the present invention to provide a rotary drive transmission device capable of capable.

The rotary drive transmission device according to the present invention is provided between the input side and the output side, and has a rotary friction clutch that reduces the rotational difference between the input side member and the output side member, and one of the input side and the output side. An actuating part that sets the engagement actuating member at the actuating position where the rotary friction clutch is provided and at the actuating position where the actuating state is released or at the releasing position where the operating state is released, and an actuating portion provided on either the input side or the output side and becomes an operating state. The engaging member and the engaging member are set in an engaged state to provide an engaging portion for transmitting rotational power from the input side member to the output side member. It is provided with a position setting mechanism for rotating the engagement actuating member to set it at the actuating position or the disengaging position. Further, the position setting mechanism includes a rotating member that reciprocates in the circumferential direction by hydraulic pressure, and the engaging operating member is moved to the operating position or the disengagement in conjunction with the reciprocating rotation operation of the rotating member. Set to position. Further, the rotary friction clutch includes a friction plate connected to one of the input side and the output side and a friction disc connected to the other, and the friction plate and the friction disc are brought into contact with each other to bring the input side member and the output. The frictional difference between the side members is reduced. Further, the engagement actuating member includes a pressing portion that presses the friction plate and the friction disc so as to be in contact with each other, and a locking portion that engages with the engaging member in conjunction with the pressing operation of the pressing portion. And have. Further, the rotary friction clutch includes a working plate which is set to move in a direction in which the friction discs and the friction plates arranged alternately are brought into contact with each other and has a tapered working surface formed therein. The actuating portion is set so that the pressing portion abuts on the actuating surface to move the actuating plate when the engaging actuating member is set to the actuating position.

The clutch device according to the present invention is a clutch device including the above-mentioned transmission device for rotation drive, and the operating portion is provided on either the input side member or the output side member to rotate around a rotation center axis. The engaging portion is provided on the other of the input side member or the output side member and interlocks with the rotation operation about the rotation center axis. Further, the engaging actuating member has a locking portion in which an engaging surface is formed along the rotation center axis by cutting out to a position including the rotation axis in a direction orthogonal to the rotation axis along the rotation center axis. The engaging member is provided with an engaging projection portion that protrudes in the radial direction of the rotation center axis, and the engaging actuating member is rotated about the rotation axis to cause the locking portion. The engaging surface is set to the engaged state by abutting the engaging surface of the engaging protrusion on the circumferential end of the rotation center axis.

The present invention has the above-mentioned configuration, and while having a function of reducing the drag torque, the rotary friction clutch is operated by the engagement actuating member to reduce the rotational difference between the input side member and the output side member. At the same time, by putting the engaging actuating member in an engaging state with the engaging member, power is transmitted from the input side member to the output side member, so that the engaging state is smoothly set with the rotation difference reduced. It becomes possible.

Further, since the engaging actuating member is rotated to be set in the engaging state with the engaging member, the stroke length can be shortened and the space in the direction of the rotation center axis can be reduced, and the rotation center can be reduced. It is possible to reduce the size of the device by avoiding the increase in size of the device in the axial direction.

Further, the engaging actuating member is provided with a locking portion in which an engaging surface is formed along the rotation center axis by cutting out to a position including the rotation axis in a direction orthogonal to the rotation axis along the rotation center axis. The member is provided with an engaging protrusion that protrudes in the radial direction of the rotation center axis, and the engagement operating member is rotated around the rotation axis so that the engagement surface of the locking portion is the circumference of the rotation center axis of the engagement protrusion. By setting the engagement state in contact with the direction end, the rotation axis of the engagement actuating member is located closer to the engagement projection than the engagement surface, so that the engagement actuating member is the engagement member. It is possible to maintain a stable engaged state by preventing it from being pressed by the force and inadvertently rotating.

It is an external perspective view which concerns on embodiment of this invention. It is sectional drawing in the direction along the rotation center axis. It is a partially enlarged perspective view about the actuating protrusion. It is a figure which looked at the mounting member and the sun gear member from the axial direction. It is a figure which looked at the mounting member and the sun gear member from the axial direction. It is the figure which looked at the engaging part from the axial direction. It is the figure which looked at the engaging part from the axial direction. It is explanatory drawing which shows the operation process of the actuating part. It is explanatory drawing which shows the operation process of the actuating part. It is explanatory drawing which shows the operation process of the actuating part.

Hereinafter, embodiments according to the present invention will be described in detail. Since the embodiments described below are preferable specific examples for carrying out the present invention, various technical restrictions are made, but the present invention particularly limits the present invention in the following description. Unless otherwise stated, it is not limited to these forms.

FIG. 1 is an external perspective view of an embodiment of the present invention, and FIG. 2 is a cross-sectional view in a direction along a rotation center axis. In FIG. 2, since the same cross section appears symmetrically about the rotation center axis, only one cross section is shown. In this example, a clutch device will be described as an example of the transmission device for rotation drive. The clutch device includes a plurality of rotating members rotatably attached around a rotation center axis T. In the following description, the direction along the rotation center axis T is defined as the "axial direction", the direction orthogonal to the rotation center axis T is defined as the "diameter direction", and the circumferential direction centered on the rotation center axis T is defined as the "circumferential direction". explain.

The clutch device 1 is adapted to transmit or disconnect power between the sleeve 2 and the hub 3, one of which is an input-side member of rotational power and the other of which is an output-side member. The sleeve 2 is formed in a disk shape, the central portion is opened, and the cylindrical portion 2a extends in the axial direction. The hub 3 is formed in a cylindrical shape, and a shaft member corresponding to the rotation center axis T is inserted into the central portion thereof. A cylindrical portion 2a of the sleeve 2 is attached to the outer peripheral surface of one end of the hub 3, and the sleeve 2 is rotatably attached around the hub 3.

The clutch device 1 is related to the rotational friction clutch 10, which is a rotational operation unit that reduces the rotational difference between the sleeve 2 and the hub 3, and the operation position in which the rotational friction clutch 10 is in the operating state or the release position in which the operating state is released. Power is transmitted between the sleeve 2 and the hub 3 by setting the actuating portion 20 for setting the combined actuating member 21, and the engaging actuating member 21 and the engaging member 31 in the engaged state in the engaged state. It is provided with an engaging portion 30.

The rotary friction clutch 10 rotates the output side member in accordance with the rotational movement of the input side member that rotates by transmitting the rotational power, and reduces the rotation difference so that the rotational movements between the two are synchronized. In this example, the rotary friction clutch 10 includes a plurality of friction plates 11 and a friction disc 12 used in a known wet multi-plate clutch.

The friction plate 11 is attached to a drum member 13 fixed to the other side edge with respect to the ring-shaped cover 4 to which one side edge is fixed to the outer peripheral edge of the sleeve 2. The outer peripheral edge of the sleeve 2 and the outer peripheral edge of the drum member 13 are overlapped with each other on both side edges of the cover 4, and bolts are inserted, and each member is tightened and fixed by screwing a nut to the bolt. , The cover 4 and the sleeve 2 are integrally rotated around the rotation center axis T. A plurality of engaging grooves 13a are formed on the inner peripheral surface of the drum member 13, and a plurality of engaging protrusions formed on the outer peripheral portion of the friction plate 11 are fitted into the plurality of engaging grooves 13a to form a spline. By engaging, the friction plate 11 is restricted and attached so that it can move in the axial direction and does not move in the circumferential direction.

The friction disc 12 is attached to a hub member 14 that is fastened and fixed by bolts and nuts to an engaging portion 30 extending radially from the hub 3, and the hub 3 and the hub member 14 are centered on rotation. It is designed to rotate integrally around the shaft T. A plurality of engaging protrusions 14a are formed on the outer peripheral surface of the hub member 14, and a plurality of engaging grooves formed on the inner peripheral portion of the friction disk 12 are fitted into the plurality of engaging protrusions 14a to form a spline. By engaging, the friction disc 12 is regulated and attached so as to be movable in the axial direction and not to move in the circumferential direction.

The friction plates 11 and the friction discs 12 are arranged alternately. On the opposite side of the sleeve 2, a friction plate 15 formed thicker than the friction plate 11 is arranged, and on the sleeve 2 side, the friction plate 11 is thicker than the friction plate 11. The formed actuating plate 17 is arranged. Like the friction plate 11, the friction plate 15 and the actuating plate 17 are spline-engaged with the drum member 13, and are attached so as to be movable in the axial direction and not to move in the circumferential direction.

The friction plate 15 is provided with a stopper 16 for preventing the friction plate 15 from coming off in the axial direction. On the inner peripheral side of the actuating plate 17, an actuating surface 17a formed in a tapered shape is formed on the sleeve 2 side so as to reduce the thickness, and the actuating surface 17a is an engaging actuating member 21 described later. It is arranged to face the shaft portion 21a formed at the tip of the.

Since the rotary friction clutch 10 is configured as described above, the shaft portion 21a presses the working surface 17a so that the working surface 17a is displaced in the axial direction, so that the working plate 17 moves in the axial direction to the friction plate 11 and the friction plate 11. The friction disc 12 comes into contact. Since the friction plate 11 is connected to the sleeve 2 so as to be restricted in the circumferential direction, and the friction disc 12 is connected to the hub 3 so as to be restricted in the circumferential direction, the friction plate 11 and the friction are connected. Due to the contact of the disc 12, the sleeve 2 and the hub 3 follow the rotational movement of one that transmits the rotational power, and the other rotates, so that the difference in rotation between the two is reduced.

In this case, it is not necessary to bring the friction plate 11 and the friction disc 12 into close contact with each other so that the sleeve 2 and the hub 3 rotate in synchronization, and when the engaging member 31 and the engaging operating member 21, which will be described later, are in the engaged state. It suffices if the difference in rotation between the two is reduced to the extent that no impact is generated. Therefore, the number of friction plates 11 and friction discs 12 may be small, and the pressing force on the operating plate 17 can be reduced. Therefore, it is possible to secure a space between the friction plate 11 and the friction disc 12 to reliably prevent the generation of drag torque. If necessary, hydraulic oil or the like can be interposed between the friction plate 11 and the friction disc 12.

The actuating portion 20 is adapted to rotate the engaging actuating member 21 to actuate the actuating plate 17 and engage with the engaging member 31 of the engaging portion 30. The engagement actuating members 21 are arranged at a plurality of locations on the outer peripheral portion of the sleeve 2 at equal intervals, and are rotatably supported between the outer peripheral portion of the sleeve 2 and the inner peripheral edge portion of the cover 4, and are rotationally centered. It is designed to rotate around a rotation axis along T. The engagement actuating member 21 includes a pinion gear portion 21b in which a gear train is formed along an axial direction on a columnar outer peripheral surface between the sleeve 2 and the cover 4, and is pivotally supported by the cover 4. The shaft portion 21a is projected from the vertical portion toward the operating plate 17.

FIG. 3 is a partially enlarged perspective view of the shaft portion 21a. The shaft portion 21a is formed in a columnar shape, and a locking portion 21c is formed at the tip portion so as to cut out a portion facing the engaging member 31 along the axial direction. The locking portion 21c is formed by notching a position including the rotation axis in a direction orthogonal to the rotation axis of the shaft portion 21a. At the tip of the locking portion 21c, a pressing portion 21d is formed by notching a portion facing the actuating plate 17 and protruding in the axial direction, and the tip surface of the pressing portion 21d is a narrow pressing surface, and the pressing surface is It is set to face the operating surface 17a of the operating plate 17. Therefore, in FIG. 3, the tip end portion and the locking portion 21c of the shaft portion 21a are set to release positions that do not come into contact with the actuating plate 17 and the engaging member 31.

As a position setting mechanism for rotating the engagement operating member 21 to the operating position or the disengaging position, in this example, the engaging operating member 21 is operated in conjunction with the rotating member that reciprocates in the circumferential direction by hydraulic pressure. It has a mechanism. The position setting mechanism is a rotating member arranged around the cylindrical portion 2a of the sleeve 2 and mounted on the outer peripheral side of the hydraulic chamber forming member 22 and the hydraulic chamber forming member 22 so as to be rotatable in the circumferential direction. A certain sun gear member 23 is provided. The hydraulic chamber forming member 22 and the sun gear member 23 are provided with the sleeve 2 and the regulating member 24 in close contact with each other on both sides in the axial direction so that the hydraulic oil supplied to the hydraulic chamber does not leak, as will be described later. It has become. The hydraulic pressure forming member 22 is attached so as to rotate together with the sleeve 2, and the sun gear member 23 is rotatable in the circumferential direction with respect to the hydraulic chamber forming member 22 between the sleeve 2 and the regulating member 24 and has a shaft. It is regulated and installed so that it does not move in the direction.

FIG. 4 is a view of the hydraulic chamber forming member 22 and the sun gear member 23 as viewed from the axial direction. The hydraulic chamber forming member 22 includes an annular shaft support portion 22a and four support portions 22b extending radially from the outer peripheral side of the shaft support portion 22a, and the support portions 22b are arranged at equal intervals between them. Voids are formed in each. The sun gear member 23 includes an annular gear portion 23a having a dentition formed on the outer peripheral portion and a partition portion 23b extending radially from the inner peripheral side of the gear portion 23a, and the partition portion 23b is hydraulic. They are respectively arranged between the support portions 22b of the chamber forming member 22.

The outer peripheral end surface of the support portion 22b is in contact with the inner peripheral surface of the gear portion 23a and is in close contact with the inner peripheral surface of the gear portion 23a in a liquid-tight manner on both sides in the circumferential direction, and the inner peripheral end surface of the partition portion 23b is the outer peripheral surface of the shaft support portion 22a. It is in close contact with the surface and is in close contact with the inscribed seal member 23c in a liquid-tight manner. Therefore, a hydraulic chamber is formed between the support portion 22b and the partition portion 23b in the circumferential direction, and the shaft support portion 22a has an introduction port 22c for introducing hydraulic oil into the hydraulic chamber on one side of the partition portion 23b. An introduction port 22d for introducing hydraulic oil is formed in the hydraulic chamber on the other side. The introduction ports 22c and 22d communicate with the supply paths 2b and 2c formed inside the cylindrical portion 2a of the sleeve 2, respectively, from an external hydraulic oil supply mechanism (not shown) to the hydraulic chamber via the supply path. Supply operations such as introduction and discharge of hydraulic oil are being performed.

In FIG. 4, the hydraulic oil is introduced into the hydraulic chamber on one side of the partition portion 23b from the introduction port 22c, and the hydraulic oil is discharged from the hydraulic chamber on the other side to move the partition portion 23b to the hydraulic chamber on the other side. It is rotating toward. In FIG. 5, the hydraulic oil is introduced from the introduction port 22d into the hydraulic chamber on the other side of the partition portion 23b, and the hydraulic oil is discharged from the hydraulic chamber on one side to move the partition portion 23b into the hydraulic chamber on one side. It is rotating toward. Contact portions projecting in the circumferential direction are formed on both side surfaces of the partition portion 23b in the circumferential direction, and the contact portion abuts on the side surface of the support portion 22b so that the partition portion 23b is within a predetermined range. Will rotate.

In this way, by rotating the partition portion 23b in the circumferential direction, the sun gear member 23 rotates in the circumferential direction, and the pinion gear portion 21b of the engagement operating member 21 that meshes with the sun gear member 23 rotates. become. In the state shown in FIG. 4, the locking portion 21c of the engaging operating member 21 is set to a release position where it does not engage with the engaging member 31, and in the state shown in FIG. 5, it is engaged by the rotation of the engaging operating member 21. The stop portion 21c is set to an operating position from the release position to engage with the engaging member 31.

In the example described above, the sun gear member 23 is rotated by introducing hydraulic oil into the hydraulic chambers on both sides of the partition portion 23b in the circumferential direction, and the engagement operating member 21 is rotated and released by the rotation of the sun gear member 23. Although it is set to the position and the operating position, an elastic member such as a spring is built in one of the hydraulic chambers, and the hydraulic oil is introduced into the other hydraulic chamber and the hydraulic oil is discharged from the other hydraulic chamber. It is also possible to rotate the sun gear member 23 by the repulsive force of the elastic member accompanying the movement.

Further, by attaching a drive mechanism such as a motor for rotating the engagement actuating member 21 to the sleeve 2, the engagement actuating member 21 may be electrically rotated, and the engagement actuating member 21 may be disengaged or actuated. If it is possible to rotate the motor, other rotation methods can be adopted, and the rotation method is not particularly limited.

As shown in FIG. 2, the engaging portion 30 includes a disk-shaped engaging member 31 extending radially from the hub 3, and a plurality of engaging protrusions are provided on the outer peripheral portion of the engaging member 31. 31a is projected in the radial direction. FIG. 6 is a view of the engaging portion 30 as viewed from the axial direction. The engaging member 31 extending in the radial direction on the outer peripheral side of the hub 3 is provided with engaging projections 31a at equal intervals on the outer peripheral portion. In the state shown in FIG. 6, the engaging actuating member 21 is set to the disengaging position, and the locking portion 21c of the engaging actuating member 21 does not come into contact with the engaging projection 31a. In the state shown in FIG. 7, as shown in FIG. 5, the engaging actuating member 21 is rotated and set to the operating position, and is engaged with the engaging projection 31a due to the rotation of the locking portion 21c. There is.

8 to 10 are explanatory views showing the operation process of the operating unit 20. In each figure, FIG. 2A is a cross-sectional view in the axial direction similar to FIG. 2, and FIG. 2B is an explanatory view of the operating state of the shaft portion 21a as viewed from the axial direction. In the figure, the rotation axis S of the engagement operating member 21 (shaft portion 21a) is shown, and the pressing surface of the pressing portion 21d is shown by hatching.

In FIG. 8, the engagement actuating member 21 is set to the release position, and the pressing portion 21d formed at the tip of the shaft portion 21a is an actuating surface formed on the sleeve 2 side on the inner peripheral side of the actuating plate 17. It is arranged opposite to 17a. The working surface 17a is formed so as to be tapered toward the inner peripheral side by notching so as to be thinner in a predetermined width in the radial direction over the entire circumference, and the thinner the inner peripheral side is, the more the pressing portion is formed. The distance from 21d is set to be widened. Therefore, in the state where the engagement actuating member 21 is set to the disengagement position, the pressing portion 21d is set so that the longitudinal direction is along the circumferential direction, and the tip of the pressing portion 21d is set on the inner peripheral side of the actuating surface 17a with a thin thickness. The pressing surfaces are arranged so as to face each other so that they do not come into contact with each other. Further, since the engaging surface of the locking portion 21c is also set along the circumferential direction, the locking portion 21c is set so as not to come into contact with the engaging projection 31a of the engaging member 31.

In the example shown in FIG. 8, the engaging member 31 is rotated clockwise as shown by an arrow, but when the engaging operating member 21 is set to the release position, the operating surface 17a of the operating plate 17 is engaged. It is not pressed in the axial direction by the pressing portion 21d of the coupling member 21. Therefore, since the rotary friction clutch 10 is not operating and the locking portion 21c is not engaged with the engaging projection 31a, the input side (hub 3 interlocking with the engaging member 31) and the output side (engagement operation). The sleeve 2) interlocked with the member 21 is in a cut state, and the rotational power is not transmitted from the input side to the output side.

FIG. 9 shows a state in which the engagement operating member 21 has started to rotate due to the start of operation of the operating unit 20. When the rotation of the engagement operating member 21 is started, the pressing portion 21d at the tip of the shaft portion 21a rotates, and the pressing portion 21d is in an inclined state with respect to the circumferential direction. Therefore, in the pressing portion 21d, one end side in the circumferential direction rotates toward the outer peripheral side and moves on the operating surface 17a, and accordingly, the working surface 17a is moved from the inner peripheral side to the outer peripheral side with a thin thickness. The actuating plate 17 is pressed so as to gradually move in the axial direction so as to come into contact with the tapered slope so as to ride on it. On the other hand, at the stage where the pressing portion 21d begins to incline in the circumferential direction, the other end side rotates toward the inner peripheral side, but the contact with the tip of the engaging projection 31a is avoided. Since it is set, it is not in an engaged state between the engaging protrusion 31a and the locking portion 21c. Therefore, the rotary friction clutch 10 is operated by the pressing operation by the pressing portion 21d against the operating plate 17, and the sleeve 2 and the hub 3 are interlocked to start the rotational operation so that the rotational difference between the two is reduced. Although the rotation operation is started, the engagement protrusion 31a and the locking portion 21c are not engaged with each other, and the sleeve 2 and the hub 3 start a smooth rotation operation via the rotation friction clutch 10. Will be done.

As shown in FIG. 9, since the hub 3 on the input side and the sleeve 2 on the output side start the rotational operation in synchronization with the operation of the rotary friction clutch 10, the engagement actuating member 21 interlocked with the sleeve 2 is pressed. As shown by the arrow, the portion 21d starts the rotational operation in synchronization with the engaging member 31, and the rotational difference between the two is reduced.

FIG. 10 shows a state in which the engagement actuating member 21 is rotated and set to the actuating position. As the engaging actuating member 21 further rotates from the state shown in FIG. 9, the pressing portion 21d becomes a state in which the tilt angle with respect to the circumferential direction increases and the actuating plate 17 is pressed, and the engaging portion 21c has an engaging projection. It is in contact with the corner of 31a. Therefore, the rotation difference of the sleeve 2 and the hub 3 is further reduced by the rotary friction clutch 10, and the sleeve 2 and the hub 3 rotate at the same rotation speed in conjunction with each other in the circumferential direction via the engagement actuating member 21 and the engagement member 31. .. Then, in the state where the engaging actuating member 21 is set to the operating position, the engaging surface of the locking portion 21c is in close contact with the end face in the circumferential direction of the engaging projection 31a and is set to the engaging state, and the sleeve is set. 2 and the hub 3 are in a state in which rotational power is stably transmitted by the engagement of the engagement actuating member 21 and the engagement member 31. Since the locking portion 21c is formed by cutting out to a position including the rotation axis S in a direction orthogonal to the rotation axis S of the engagement actuating member 21, the rotation axis S is closer to the engagement projection 31a than the engagement surface. Since the engagement member 21 is positioned, the engagement actuating member 21 is prevented from being pressed by the engagement member 31 and inadvertently rotated, and a stable engagement state can be maintained.

When the locking portion 21c and the engaging protrusion 31a are set to the engaged state, the sleeve 2 and the hub 3 have already started the rotational operation so that the rotation difference is reduced, so that the impact due to the engagement is almost the same. The engaged state can be smoothly realized without occurring. Further, depending on the engaged state, the rotational power is efficiently transmitted between the input side and the output side, and a stable engaged state can be maintained. Then, when the engaged state is released, the rotary friction clutch 10 is released in a state where the rotation is maintained, so that a smooth release operation can be performed.

Further, since the rotary friction clutch 10 can be operated by the rotational operation of the engagement operating member 21 and the engagement operation with the engaging portion 30 can be performed, a member such as a piston can be used as a shaft as in a conventional clutch device. Space for moving in the direction is not required, and the device can be configured compactly.

The actuating portion 20 having the engaging actuating member 21 and the engaging portion 30 having the engaging member 31 may be provided on either the input side member or the output side member for transmitting the rotational power, and the actuating portion 20 may be provided. Is provided on one of the input side member or the output side member and is set to be interlocked with the rotation operation centered on the rotation center axis, and the engaging portion 30 is provided on the other side of the input side member or the output side member to be the rotation center. It may be set so as to be interlocked with the rotational movement around the axis.

In the example described above, although the description has been made based on the clutch device, a plurality of rotating members rotatably attached around the center of rotation axis are provided, and the driving force of the rotary drive shaft is transmitted through these rotating members. If it is an apparatus, the present invention can be applied. For example, it can be applied to devices such as transmissions, torque converters, start clutch devices, and braking devices such as brakes.

T ... Rotation center axis, 1 ... Clutch device, 2 ... Sleeve, 3 ... Hub, 4 ... Cover, 10 ... Rotational friction clutch, 11 ... Friction plate, 12 ... ... Friction disc, 13 ... Drum member, 14 ... Hub member, 17 ... Actuating plate, 20 ... Acting part, 21 ... Engagement actuating member, 21a ... Shaft part, 21b ... Pinion gear part, 21c ... Locking part, 21d ... Pressing part, 22 ... Hydraulic chamber forming member, 22a ... Shaft support part, 22b ... Support part, 22c, 22d ... Introductory port, 22e ... External seal member, 23 ... Sun gear member, 23a ... Gear part, 23b ... Partition part, 23c ... Internal seal member, 30 ... Engagement part, 31 ... Engagement member

Claims (7)

A rotary friction clutch provided between the input side and the output side and reducing the rotational difference between the input side member and the output side member, and a rotary friction clutch provided on either the input side or the output side and in the operating state. An actuating part that sets the engagement actuating member at the actuating position or the disengaging position at which the actuating state is released, and the engaging actuating member and the engaging member provided on the other side of the input side or the output side and in the operating state. Is provided with an engaging portion that transmits rotational power from the input side member to the output side member by being set to the engaged state, and the operating portion rotates the engaging operating member to operate the engaging portion. A rotary drive transmission device including a position setting mechanism for setting a position or a release position. The position setting mechanism includes a rotating member that reciprocates in the circumferential direction by hydraulic pressure, and the engaging operating member is moved to the operating position or the disengaging position in conjunction with the reciprocating rotation operation of the rotating member. The rotary drive transmission device according to claim 1. The rotary friction clutch includes a friction plate connected to one of the input side and the output side and a friction disc connected to the other, and the friction plate and the friction disc are brought into contact with each other to bring the input side member and the output side member into contact with each other. The rotary drive transmission device according to claim 1 or 2, wherein the rotational difference between the two is reduced. The engaging actuating member includes a pressing portion that presses the friction plate and the friction disk so as to be in contact with each other, and a locking portion that engages with the engaging member in conjunction with the pressing operation of the pressing portion. The rotary drive transmission device according to claim 3. The rotary friction clutch includes a working plate that is set to move in a direction that brings the friction discs and the friction plates that are alternately arranged into contact with each other and has a tapered working surface formed therein. The rotary drive according to claim 4, wherein the actuating portion is set so that the pressing portion abuts on the actuating surface to move the actuating plate when the engaging actuating member is set to the actuating position. Transmission device. A clutch device comprising the rotation drive transmission device according to any one of claims 1 to 5, wherein the operating portion is provided on either the input side member or the output side member to rotate around a rotation center axis. A clutch device that is set to be interlocked with an operation and that the engaging portion is provided on the other of the input side member or the output side member and interlocks with the rotation operation about the rotation center axis. The engagement actuating member is provided with a locking portion in which an engagement surface is formed along the rotation center axis by cutting out to a position including the rotation axis in a direction orthogonal to the rotation axis along the rotation center axis. The engaging member is provided with an engaging protrusion that protrudes in the radial direction of the rotation center axis, and the engaging operating member is rotated about the rotation axis to engage the locking portion. The clutch device according to claim 6, wherein the engaging surface is set in an engaged state by abutting the contact surface on the circumferential end of the rotation center axis of the engaging protrusion.

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