JP2012149759A - Power transmission/interruption device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power transmission/interruption device which can be compactified and stabilize power transmission/interruption performance.SOLUTION: The power transmission/interruption device 1 includes a rotary shaft 3, a gear 5 which is arranged relatively rotatably and coaxially on the rotary shaft 3, a pair of clutches 7 and 9 which are arranged axially adjacent with the gear 5 on the rotary shaft 3 and integrally rotatably connected respectively to the rotary shaft 3 and the gear 5, a meshing portion 15 which includes first meshing teeth 11 and second meshing teeth 13 arranged opposing in the axial direction respectively to the pair of clutches 7 and 9, an electromagnet 17 which allows the pair of clutches 7 and 9 to permeate lines of magnetic force and attracts the clutch 9 to the clutch 7 to connect the meshing portion 15, and a presser 19 which presses the clutch 9 in the direction to release the connection of the meshing portion 15.

Description

  The present invention relates to a power interrupting device applied to a vehicle.

  Conventionally, as a power interrupting device, an output shaft as a rotating shaft, a third gear as a gear member on the input shaft side of a driving force coaxially supported on the output shaft so as to be relatively rotatable with the output shaft, A rotating member and an armature as a pair of clutch members disposed between the shaft and the third gear; a cam mechanism provided between the third gear and the armature; and formed independently; a rotating member and an armature; Is formed between the rotating member and the armature, and presses the armature in the direction of releasing the connection between the rotating member and the armature. The thing provided with the return spring as a press member is known (for example, refer to patent documents 1).

  In this power interrupting device, the armature is attracted and moved to the rotating member side by energizing the electromagnet, and the rotating member and the armature are frictionally connected. By this frictional connection, the cam mechanism is operated, and the armature is further moved to the rotating member side. By the movement of the armature by the cam mechanism, the frictional force between the rotating member and the armature is enhanced, and the rotating member and the armature are firmly connected so as to be integrally rotatable. The driving force input to the third gear is output to the output shaft through the rotating member, the armature, and the rotating member.

JP 2004-17807 A

  However, in the power interrupting device as described above, the pair of clutch members are connected by the self-locking function obtained by the frictional force between the pair of clutch members and the frictional force enhanced by feedback using the cam mechanism. Therefore, if even a slight relative rotation occurs in the cam mechanism, a frictional force is generated between the pair of clutch members, the self-lock function is activated, and it is not easy to release the connection between the pair of clutch members. . For this reason, the pressing member for releasing the connection between the pair of clutch members has to be enlarged, and the arrangement of the pressing member has been limited, resulting in an increase in the size of the device.

  In the power interrupting device as described above, the gear member, the cam mechanism formed independently, the pair of clutch members, and the pressing member are arranged in series in the axial direction of the rotating shaft. Inviting an increase in size.

  Furthermore, in the power interrupting device as described above, since the power transmission between the rotating shaft and the gear member is interrupted by the frictional force between the pair of clutch members, the connection characteristics are unstable, and the device intermittent characteristics Was unstable.

  Accordingly, an object of the present invention is to provide a power interrupting device that can be miniaturized and can stabilize the interrupting characteristics.

  The power interrupting device of the present invention includes a rotating shaft, a gear member coaxially disposed on the rotating shaft so as to be relatively rotatable, and the rotating shaft disposed adjacent to the gear member in the axial direction on the rotating shaft. A pair of clutch members coupled to the gear member so as to be integrally rotatable, and a first meshing tooth and a second meshing tooth provided to face each of the pair of clutch members in the axial direction. A meshing portion, an electromagnet that transmits a line of magnetic force to the pair of clutch members, attracts the other clutch member to one clutch member of the pair of clutch members, and connects the meshing portion; and And a pressing member that presses the other clutch member in the disconnection direction.

  In this power interrupting device, the power transmission between the rotating shaft and the gear member is interrupted from a first meshing tooth and a second meshing tooth provided so as to face each of the pair of clutch members in the axial direction. Therefore, it is not necessary to interrupt between the pair of clutch members by a frictional force.

  For this reason, it is not necessary to arrange the cam mechanism in series in the axial direction of the rotating shaft, and the apparatus can be downsized.

  Further, since the connection between the pair of clutch members is interrupted not by the frictional force but by the meshing of the meshing portion, not only the connection characteristics but also the connection release characteristics can be stabilized, and the intermittent characteristics of the device can be stabilized.

  Advantageous Effects of Invention According to the present invention, there is an effect that it is possible to provide a power interrupting device that can be downsized and can stabilize the interrupting characteristics.

It is sectional drawing of the power interruption apparatus which concerns on 1st Embodiment of this invention. It is sectional drawing of the power interruption apparatus which concerns on 2nd Embodiment of this invention.

  A power interrupting device according to an embodiment of the present invention will be described with reference to FIGS.

  The power interrupting device is arranged in the drive system of the vehicle. The drive system includes an electric motor as a drive source, a transmission mechanism that transmits rotational torque of the electric motor, a differential device that distributes and transmits output torque of the transmission mechanism to a pair of axles, and a pair of axles. Consists of connected wheels.

  When mounted on a vehicle drive system, the speed change mechanism uses a multi-stage externally meshed reduction gear set that decelerates rotation of an electric motor as a drive source and increases output torque. However, considering the arrangement space of each mechanism configured in the drive system, the above-described various gear sets are used to combine chain mechanisms and planetary gear sets with input / output sprockets and to set the distance between the shafts. An idler gear set may be combined.

  A drive system according to an embodiment of the present invention includes a first input gear that rotates integrally with an output shaft of an electric motor (not shown) and a gear member 5 (first output gear) described later as a speed change mechanism. And a second input gear connected to (or integrally formed with) the rotating shaft 3 and a second output gear connected to the differential device so as to be integrally rotatable. A second reduction gear set.

  More specifically, the first input gear is supported on the stationary motor casing by the motor shaft bearing and press-fitted at one end into the shaft end of the electric motor shaft partitioned inside and outside the motor casing by the oil seal. And has a first input gear portion at the other end. The first input gear is accommodated in a stationary gear casing that accommodates the speed change mechanism.

  The first output gear is disposed adjacent to the second input side gear in the axial direction of the rotation shaft, and the motor shaft bearing and the oil seal overlap in the radial direction of the second input side gear. Are arranged. Note that the first output gear has a flange portion 24 that transmits driving torque positioned on the inner diameter side of the intermediate portion in the axial direction of the gear portion 23, so that the first output gear is thinned on one end side and the other end side on the inner diameter side of the gear portion 23. The portions 26 and 28 are formed, and adjacent functional members can be disposed in the thinned portion so as to reduce the size in the axial direction of the rotating shaft.

  One end of the rotary shaft 3 is supported by the gear casing 27 by a bearing 25, and the other end is supported by a motor casing by another bearing. Other bearings use needle bearings and suppress overhanging toward the motor casing.

(First embodiment)
The first embodiment will be described with reference to FIG.

  The power interrupting device 1 according to the present embodiment includes a rotating shaft 3, a gear member 5 coaxially disposed on the rotating shaft 3 so as to be relatively rotatable, and the gear member 5 on the rotating shaft 3 in the axial direction. A rotor 7 and an armature 9 as a pair of clutch members which are arranged adjacently and are connected to the rotary shaft 3 and the gear member 5 so as to be integrally rotatable, and so as to face each of the rotor 7 and the armature 9 in the axial direction. The meshing portion 15 comprising the first meshing tooth 11 and the second meshing tooth 13 provided, and the rotor 7 and the armature 9 on the rotating shaft 3 are arranged opposite to the gear member 5 with the rotor 7 and the armature 9 sandwiched in the axial direction. An electromagnet 17 that transmits magnetic lines of force to the armature 9 and attracts the armature 9 to the rotor 7 to connect the meshing portion 15; and a pressing member 19 that presses the armature 9 in the direction in which the meshing portion 15 is disconnected. A. By energizing the coil of the electromagnet 17, a magnetic flux loop is formed among the core 45 of the electromagnet, the rotor 7, and the armature 9.

  The armature 9 is spline-coupled to the gear member 5 so as to be movable in the axial direction and integrally rotatable in the rotational direction, and in contact with the gear member 5 by the pressing of the pressing member 19 in a disconnected state of the meshing portion 15. A restricting portion 21 that restricts the direction movement is provided.

  Further, the pressing member 19 is disposed so as to overlap the gear portion 23 in the radial direction in the thinning portion 26 on one end side on the inner diameter side of the gear portion 23 of the gear member 5.

  Further, the meshing portion 15 is disposed on the outer diameter side of the gear portion 23 of the gear member 5 so as to face the gear portion 23 in the axial direction.

  As shown in FIG. 1, the rotary shaft 3 is housed in a concave portion in a gear casing 27 as a stationary side member via a bearing 25 at one end side in the axial direction and is rotatably supported. Moreover, the other axial direction side of the rotating shaft 3 is supported via the bearing in the recessed part formed in the motor casing outer wall as mentioned above.

  The rotary shaft 3 outputs the driving force input from the gear member 5 side to one transmission mechanism through one rotary member by selecting the arrangement structure of the drive source, or from one transmission mechanism to the other It is also possible to output the driving force input through the rotating member to the gear member 5 side.

  The gear member 5 has an inner diameter that is rotatable relative to the rotary shaft 3 via the needle bearing 29 on the outer periphery of the rotary shaft 3 and is coaxially disposed.

  A rotor 7 and an armature 9 are connected to the rotating shaft 3 and the gear member 5 so as to be integrally rotatable, respectively, and the rotating shaft 3 and the gear member are connected by intermittently connecting the rotor 7 and the armature 9. Power transmission to and from 5 is interrupted.

  The rotor 7 is made of a magnetic material that can transmit magnetic lines of force and has a U-shaped radial cross section. The rotor 7 is disposed between the electromagnet 17 (described later) and the gear member 5 on the outer periphery of the rotary shaft 3. . Further, a concave and convex connecting portion 31 is formed on the inner diameter side of the rotor 7, and the rotary shaft 3 is connected to the concave and convex connecting portion 35 formed on the outer periphery of the rotary shaft 3 via a connecting member 33 made of a nonmagnetic material. And are connected to be rotatable together. A washer 37 is disposed between the rotor 7 and the gear member 5 in the axial direction. A magnetic path blocking member 39 made of a non-magnetic material is welded to and frictionally formed between the magnetic path forming members 38 and 40 of the inner and outer peripheral portions of the rotor 7 at the central portion of the wall portion facing the electromagnet 17 of the rotor 7. They are integrally provided using fixing means such as bonding, press-fitting, or adhesion. The rotor 7 transmits magnetic flux generated by excitation of the electromagnet 17 and forms a magnetic flux loop together with the core 45 and the armature 9.

  The armature 9 is made of a magnetic material, is formed in an annular shape, and is disposed on the outer peripheral side of the rotating shaft 3 so as to face the electromagnet 17 with the rotor 7 sandwiched in the axial direction. Further, a spline-shaped connecting portion 41 is formed on the inner diameter side of the armature 9, and the spline-shaped connecting portion formed on the outer periphery of the inner diameter side end portion of the gear member 5 can rotate integrally with the gear member 5 and has a shaft. It is connected so that it can move in the direction. Further, on the gear member 5 side of the armature 9, in a state where the meshing portion 15 described later is not meshed, that is, in an initial state, the armature 9 is brought into contact with the gear member 5 by the pressing of the pressing member 19 described later, so A restricting portion 21 that restricts the direction movement is provided. The armature 9 is attracted and moved to the electromagnet 17 side, that is, the rotor 7 side by a magnetic flux loop formed by excitation of the electromagnet 17 to connect the meshing portion 15.

  The meshing portion 15 is composed of a first meshing tooth 11 and a second meshing tooth 13 provided on opposing surfaces of the rotor 7 and the armature 9 facing each other in the axial direction. Further, the meshing portion 15 is disposed on the outer diameter side of the gear portion 23 of the gear member 5 so as to face the gear portion 23 in the axial direction. With such an arrangement, the power transmission path from the gear part 23 of the gear member 5 to the meshing part 15 via the connecting part 41 can be set long, and the influence of mutual meshing vibration can be suppressed. The meshing portion 15 is meshed by the attraction movement of the armature 9 due to the excitation of the electromagnet 17, and the meshing is released by the pressing movement of the armature 9 by the pressing member 19 by stopping the energization to the electromagnet 17. By intermittently engaging the meshing portion 15 in this manner, power transmission between the rotating shaft 3 and the gear member 5 is interrupted. The intermittent portion 15 is controlled by energizing the electromagnet 17.

  The electromagnet 17 includes an electromagnetic coil 43 and a core 45. The electromagnetic coil 43 is arranged inside the core 45 so as to cover one side in the axial direction, and is arranged so that the tip end side on the other side in the axial direction is covered by the rotor 7. The core 45 is connected to a controller (not shown) for controlling energization disposed outside the casing 27 via a lead wire 47, and energizes the electromagnetic coil 43 so as to connect the meshing portion 15 by control by the controller. Is done. The core 45 is engaged with a rotation preventing member 49 that prevents the electromagnet 17 from rotating relative to the casing 27. Further, an air gap is formed between the core 45 and the rotor 7 so as to face each other with a minute gap, so that magnetic flux can be transferred from the core 45 to the rotor 7.

  By energizing the electromagnet 17, the magnetic lines of force through the core 45, the rotor 7, and the armature 9 are circulated to form a magnetic flux loop, and the armature 9 is attracted and moved to the rotor 7 side to connect the meshing portion 15. The connection of the meshing portion 15 is released by the pressing movement of the armature 9 by the pressing member 19.

  The pressing member 19 is composed of an urging member having an urging force such as a spring, and is disposed on the inner diameter side of the gear portion 23 of the gear member 5 so as to overlap the gear portion 23 in the radial direction. Further, one end of the pressing member 19 is accommodated in the thinning portion 26, one end is fixed to the gear member 5, and the other end is in contact with a fixing member 53 fixed to the armature 9 with a bolt 51. . The fixing member 53 is also accommodated in the thinning portion 26. The pressing member 19 presses the fixing member 53 to press and move the armature 9 in the connection release direction of the meshing portion 15. The pressing movement of the armature 9 by the pressing member 19 is regulated by the regulating portion 21 coming into contact with the gear member 5, and the initial position in the meshing portion 15 is positioned.

  In the power interrupting device 1 configured as described above, the armature 9 is attracted and moved by energization of the electromagnet 17, and the meshing portion 15 is meshed and connected. By connecting the meshing portion 15, power transmission between the rotating shaft 3 and the gear member 5 can be performed. Further, the connection of the meshing portion 15 is released by stopping the energization of the electromagnet 17, whereby the armature 9 is pressed and moved by the pressing member 19, and the meshing connection of the meshing portion 15 is released. By releasing the connection of the meshing portion 15, power transmission between the rotating shaft 3 and the gear member 5 is interrupted.

  In such a power interrupting device 1, the first meshing teeth 11 are provided so that the power transmission between the rotating shaft 3 and the gear member 5 is axially opposed to the rotor 7 and the armature 9. And the second meshing tooth 13 are used as the meshing portion 15, so that it is not necessary to interrupt the friction between the rotor 7 and the armature 9, and the cam mechanism arranged independently in the axial direction is eliminated. Can do.

  For this reason, an apparatus can be reduced in size. In addition, the pressing member 19 only needs to have a pressing force that presses the armature 9 in the connection release direction of the meshing portion 15, so that the pressing member 19 can be reduced in size, and the apparatus can be further reduced in size. .

  Further, since the rotor 7 and the armature 9 are intermittently connected not by the frictional force but by the engagement of the meshing portion 15, not only the connection characteristic but also the connection release characteristic can be stabilized, and the intermittent characteristic of the device is stabilized. be able to.

  Therefore, in such a power interrupting device 1, it is possible to reduce the size and stabilize the interrupting characteristics.

  The armature 9 is connected to the gear member 5 so as to be movable in the axial direction and integrally rotatable in the rotational direction, and in contact with the gear member 5 by the pressing of the pressing member 19 in the disconnected state of the meshing portion 15. Since the restricting portion 21 for restricting the movement is provided, the initial position of the armature 9 can be reliably positioned by the contact between the restricting portion 21 and the gear member 5, and the intermittent characteristics of the meshing portion 15 are stabilized. Can be made.

  Further, since the pressing member 19 is accommodated and disposed in the thinned portion 26 on the inner diameter side of the gear portion 23 of the gear member 5, the pressing member 19 is overlapped in the radial direction with the gear portion 23, and the arrangement space of the pressing member 19 is pivoted. The size can be reduced in the direction, and the device can be reduced in size.

  Further, since the armature 9 and the pressing member 19 are supported and disposed only with respect to the gear member 5, the pressing movement of the armature 9 by the pressing member 19 can be performed on the gear member 5, and the engagement portion 15 is disconnected. Time support can be stabilized.

  Furthermore, since the meshing portion 15 is disposed opposite to the gear portion 23 on the outer diameter side of the gear portion 23 of the gear member 5 in the axial direction, the power transmission path from the gear portion 23 to the meshing portion 15 is set to be long. And the influence of mutual meshing vibrations can be suppressed.

(Second Embodiment)
A second embodiment will be described with reference to FIG.

  In the power interrupting device 101 according to the present embodiment, the armature 103 is connected to the gear member 107 via the connecting portion 105 so as to be axially movable and integrally rotatable in the rotational direction, and the pressing member 109 is connected to the connecting portion 105. It is arranged between the rotor 7. In addition, although the same code | symbol is described to the structure same as 1st Embodiment, description is abbreviate | omitted, but since it is the same structure as 1st Embodiment, a structure and functional description refer to 1st Embodiment. Although omitted, the obtained effects are the same.

  As shown in FIG. 2, the armature 103 is made of a magnetic material and is formed in an annular shape, and is disposed on the outer peripheral side of the gear member 107 so as to face the electromagnet 17 with the rotor 7 sandwiched in the axial direction. Further, a concave-convex connecting portion 105 is formed on the inner diameter side of the armature 103, and the spline-shaped connecting portion formed on the outer periphery of the gear member 107 is connected to the gear member 107 so as to be able to rotate integrally and move in the axial direction. Has been. The rotor 7 has a concave and convex connecting portion 111 formed on the inner diameter side, and is connected to a spline-shaped connecting portion formed on the outer periphery of the rotating shaft 3 so as to be integrally rotatable with the rotating shaft 3.

  Further, the armature 103 is provided with a magnetic path blocking member 113 made of a non-magnetic material and fixing means by welding, friction bonding, press-fitting, or bonding with the magnetic path forming members 115 and 117 of the inner and outer peripheral portions of the armature 103. It is provided integrally using. The armature 103 is attracted and moved to the electromagnet 17 side, that is, the rotor 7 side by a magnetic flux loop formed by excitation of the electromagnet 17 to connect the meshing portion 15.

  The end of the armature 103 on the side of the gear member 107 is in a state where the meshing portion 15 is not meshed, that is, in an initial state, and is the end of the spline-shaped coupling portion of the gear member 107 when the pressing member 109 is pressed. A restricting portion 121 that is in contact with the abutting portion 119 and restricts further movement of the armature 103 in the axial direction is provided.

  The pressing member 109 is an urging member having an urging force such as a wave spring, and is disposed between the gear member 107 and the armature 103 in the radial direction. One end side of the pressing member 109 is in contact with a regulating member 123 such as a C-type washer fixed to the outer periphery of the gear member 107 on the rotor 7 side, and the other end side is a wall on which the connecting portion 105 of the armature 103 is provided. It is contact | abutted to the axial direction end surface of the part. By disposing the pressing member 109 between the connecting portion 105 and the rotor 7 in this way, the fixing member 53 as shown in FIG. 1 can be eliminated, the number of parts can be reduced, and the pressing member 109 arrangement structure can be simplified.

  Such a pressing member 109 directly presses the armature 103 to press and move the armature 103 in the direction in which the engagement portion 15 is disconnected. The pressing movement of the armature 103 by the pressing member 109 is restricted by the restricting portion 121 coming into contact with the contacted portion 119 of the gear member 107, and the initial position of the meshing portion 15 is positioned.

  In order to apply the structure according to the second embodiment to the power interrupting device 1 according to the first embodiment, the armature 9 and the fixing member 53 are formed as one continuous member. A connecting portion 105 is provided between the inner periphery of the end of the fixed member 53 on the gear member 5 side and the outer periphery on the inner diameter side of the gear member 5 so as to be integrally rotatable and axially movable. When this connection part 105 is provided, the connection part 41 in 1st Embodiment is abolished. Then, the pressing member 19 may be disposed between the connecting portion 105 and the rotor 7. In such a configuration, the fixing member 53 that is a separate member can be eliminated when the pressing member 19 overlaps the gear portion 23 in the radial direction, so the number of parts can be reduced while reducing the arrangement space of the pressing member 19 in the axial direction. The arrangement structure of the pressing member 19 can be simplified by reducing the number of the pressing members 19.

  In such a power interrupting device 101, the armature 103 is connected to the gear member 107 via the connecting portion 105 so as to be axially movable and integrally rotatable in the rotational direction, and the pressing member 109 is connected between the connecting portion 105 and the rotor 7. Therefore, the auxiliary member for disposing the pressing member 109 can be eliminated, and the assembling property can be improved.

  In addition, other embodiment which can be considered regarding this invention is shown.

  In the power interrupting device, the pressing member is configured to press and move the armature via the fixing member, but the armature may be moved to the gear member side by the contraction force of the pressing member, and the fixing member may be eliminated.

  In addition, although the connection that enables the rotation shaft and the rotor to rotate integrally is performed via a connection member, a spline-shaped connection portion may be provided on each of the rotation shaft and the rotor so as to connect the spline.

  Furthermore, another embodiment of the power interrupting device for enabling the first embodiment to be further reduced in size will be described.

  The electromagnet 17 is disposed in the thinning portion 26 on one end side of the gear member 5 so as to cover one side of the core 45 in the axial direction, and the armature 9 is disposed in the thinning portion 28 on the other end side of the gear member 5. . The flange portion 24 of the gear member 5 is formed integrally with the rotor 7 and is used as a gear member and a clutch member. The gear member 5 is supported on the rotary shaft 3 through a bearing so as to be relatively rotatable, and the armature 9 is rotated. 3 is arranged so as to be axially movable and integrally rotatable. A meshing portion composed of a first meshing tooth formed on the other side in the axial direction of the flange portion 24 on the inner diameter side of the gear portion 23 and a second meshing tooth formed on one end side in the axial direction of the armature 9 is arranged to face each other. Let

  The pressing member 19 is accommodated in a notch formed on the inner side in the radial direction of the armature 9 and is disposed so as to overlap in the radial direction, and urges the armature 9 toward the disengagement side. The magnetic lines of force of the electromagnet 17 form a magnetic flux loop that diffracts the core 45, the flange portion 24 (corresponding to one clutch member) and the armature 9 (corresponding to the other clutch member), and counteracts the urging force of the pressing member. A second meshing tooth is connected. By doing so, the power transmission device and the drive system can be greatly downsized in the axial direction and the radial direction.

  The connecting portion between the gear member or the rotary shaft and the armature has a connecting shape (for example, an inclined surface shape inclined in the axial direction) that moves relative to each other in the axial direction by the drive torque, so that the meshing portion of the engaging portion can be set according to the input torque. The exciting force of the electromagnet can be reduced by assisting the fastening force.

DESCRIPTION OF SYMBOLS 1,101 ... Power interruption device 3 ... Rotating shaft 5,107 ... Gear member 7, 103, 9 ... Rotor, armature (a pair of clutch members)
DESCRIPTION OF SYMBOLS 11 ... 1st meshing tooth 13 ... 2nd meshing tooth 15 ... Meshing part 17 ... Electromagnet 19,109 ... Pressing member 21,121 ... Control part 23 ... Gear part

Claims (5)

  A rotating shaft, a gear member coaxially disposed on the rotating shaft so as to be relatively rotatable, and an axially disposed adjacent to the gear member on the rotating shaft, each rotating integrally with the rotating shaft and the gear member. A pair of clutch members connected to each other, a meshing portion including a first meshing tooth and a second meshing tooth provided so as to face each of the pair of clutch members in the axial direction; An electromagnet that transmits magnetic lines of force to the clutch member and attracts the other clutch member to one clutch member of the pair of clutch members to connect the meshing portion; and the other clutch in the direction of disconnection of the meshing portion A power interrupting device comprising: a pressing member that presses the member. The power interrupting device according to claim 1,
The other clutch member is coupled to the gear member so as to be axially movable and integrally rotatable in the rotational direction, and is brought into contact with the gear member by pressing of the pressing member in a disconnected state of the meshing portion. A power interrupting device, characterized in that a restricting portion for restricting directional movement is provided. The power interrupting device according to claim 1 or 2,
The power interrupting device according to claim 1, wherein the pressing member is disposed to overlap a gear portion of the gear member in a radial direction. The power interrupting device according to any one of claims 1 to 3,
The power interrupting device is characterized in that the meshing portion is disposed on the outer diameter side of the gear portion of the gear member. The power interrupting device according to any one of claims 1 to 4,
The other clutch member is connected to the gear member via the connecting portion so as to be axially movable and integrally rotatable in the rotational direction, and the pressing member is disposed between the connecting portion and the one clutch member. Power interruption device characterized by being made.

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