JP5580020B2 - Clutch device - Google Patents

Description

  The present invention relates to a clutch device applied to a vehicle.

  Conventionally, as a clutch device including an electromagnet that operates an interrupting mechanism that interrupts between a pair of rotating members, for example, provided between a differential case that is a rotating member on one side and one side gear that is a rotating member on the other side. There has been known one provided with a dog clutch as an interrupted mechanism and an electromagnetic actuator for operating the dog clutch (for example, see Patent Document 1).

  In this clutch device, an electromagnetic solenoid as an electromagnet and a plunger as a movable member are respectively supported in the radial direction with respect to the differential case, and a plurality of plates contacting the electromagnetic solenoid are bolted to the differential case on the back side of the electromagnetic solenoid. By doing so, the electromagnetic solenoid is positioned in the axial direction with respect to the differential case.

  However, the clutch device as described above uses a plurality of plates for restricting the axial movement of the electromagnet and two bolts for fixing one plate. As a result, the assembly workability has been reduced.

  On the other hand, instead of a plurality of plates that restrict the axial movement of the electromagnet, a clutch device in which a non-magnetic snap ring is assembled to the differential case, or a counter ring having a magnetic material formed in an annular shape is bolted to the differential case. A clutch device that is stopped is known (see, for example, Patent Document 2).

  In such a clutch device, it is not necessary to use a plurality of plates by using a snap ring or an annular canceling ring, and the number of parts can be reduced. In addition, by attaching the snap ring to the differential case, it is not necessary to use bolts for fixing the plate, and the number of parts can be further reduced.

JP 2007-92990 A JP 2007-315583 A

  However, in the clutch devices such as Patent Documents 1 and 2, restriction of the movement of the movable member in the axial direction is performed by locking means provided separately from the plurality of plates, the snap ring, and the canceling ring.

  For this reason, it is necessary to set the movement restriction of the movable member and the movement restriction of the electromagnet separately, and the structure of positioning the movable member and the electromagnet is complicated due to an increase in the number of parts and positioning accuracy. Further, since the movable member and the electromagnet are positioned separately, the initial motion characteristics of the movable member and the electromagnet may be deteriorated.

  Accordingly, an object of the present invention is to provide a clutch device that can simplify the positioning structure of the movable member and the electromagnet and can stabilize the initial motion characteristics of the movable member and the electromagnet.

The invention according to claim 1 is any one of the pair of rotating members arranged to be rotatable relative to each other, the intermittent member arranged between the pair of rotating members to interrupt the pair of rotating members, and the pair of rotating members. A movable member that is supported by one rotating member so as to be movable in the axial direction, and intermittently operates the intermittent member; and a spring that biases the movable member toward one side in the axial direction in which the intermittent portion of the intermittent member is in a connection release direction ; and a energizable electromagnet to move operating the movable member in the other axial side of said supported in the radial and axial directions other side against the rotating member of one Rutotomoni the intermittent portion is connected direction a clutch device, wherein the rotating member of the one, when the electromagnet is not energized, the movable for locking the movement in the said axial direction one side end face and in contact with said movable member of said movable member Member locking part and this The locking means having an electromagnet locking portion movable member engaging portion and by integrally provided in contact with the end face of the electromagnet for locking the movement in the said axial direction one side of the electromagnet is fixed It is characterized by.

  Invention of Claim 2 is the clutch apparatus of Claim 1, Comprising: The said electromagnet latching | locking part of the said latching means is provided in the multiple places of the circumferential direction with respect to the end surface of the said electromagnet. Features.

  A third aspect of the present invention is the clutch device according to the first or second aspect, wherein the movable member locking portion of the locking means is formed with an annular contact surface that contacts the end surface of the movable member. It is characterized by.

  The clutch device according to claim 1 includes a movable member locking portion that locks the movement of the locking member toward the one side in the axial direction, and an electromagnet locking portion that locks the movement of the electromagnet toward the one side in the axial direction. Are integrally provided, the movable member and the electromagnet can be locked simultaneously with one member, and the number of parts can be reduced. In addition, since the movable member and the electromagnet can be locked simultaneously with one member, the positioning structure of the movable member and the electromagnet can be simplified.

  Moreover, since the movable member and the electromagnet can be locked simultaneously with one member, the accuracy of the initial movement alignment between the movable member and the electromagnet can be improved, and the initial movement characteristics of the movable member and the electromagnet can be stabilized. it can.

  Furthermore, since the movable member and the electromagnet can be assembled to the one rotating member by providing the locking means on one rotating member, the clutch device can be used as one member independent of the peripheral members in the assembled state of the device. It can be handled and the transportability in the assembled state of the clutch device can be improved.

  Therefore, the structure for positioning the movable member and the electromagnet can be simplified, and the initial motion characteristics of the movable member and the electromagnet can be stabilized.

  In the clutch device according to the second aspect, since the electromagnet locking portions of the locking means are provided at a plurality of locations in the circumferential direction with respect to the end surface of the electromagnet, the heat dissipation during the temperature rise of the electromagnet can be improved. Further, sticking at the time of relative rotation between the electromagnet and the locking means can be prevented.

  In the clutch device according to the third aspect, since the contact surface where the movable member locking portion of the locking means contacts the end surface of the movable member is formed in an annular shape, the position of the end surface of the movable member is appropriately held in the circumferential direction. It is possible to stabilize the initial motion characteristics of the movable member.

It is sectional drawing of the differential apparatus in which the clutch apparatus which concerns on 1st Embodiment of this invention is mounted. It is a side view of FIG. (A) It is a front view of the latching means of the clutch apparatus which concerns on 1st Embodiment of this invention. (B) It is sectional drawing of Fig.3 (a). It is sectional drawing of the differential apparatus by which the clutch apparatus which concerns on 2nd Embodiment of this invention is mounted. FIG. 5 is a side view of FIG. 4. (A) It is a front view of the latching means of the clutch apparatus which concerns on 2nd Embodiment of this invention. (B) It is sectional drawing of Fig.6 (a). It is sectional drawing of the differential apparatus by which the clutch apparatus which concerns on 3rd Embodiment of this invention is mounted. FIG. 8 is a side view of FIG. 7.

  First, a differential device to which a clutch device according to an embodiment of the present invention is applied will be described with reference to FIG.

  As shown in FIG. 1, the differential device 301 includes a differential mechanism 307 including a differential case 3, a pinion 303, and a pair of side gears 5, 305. The differential case 3 is rotatably supported by a carrier (not shown) as a stationary member via bearings (not shown) at boss portions 309 and 311 formed on both sides in the axial direction. The differential case 3 is formed with a flange portion 313 to which a ring gear (not shown) is fixed. The ring gear meshes with a power transmission gear (not shown) that transmits a driving force, and the driving force is transmitted to the differential case 3. Drive to rotate. The differential case 3 has a so-called one-piece structure formed of a single member. In the space in the differential case 3, a pinion 303, a pair of side gears 5,305, and a receiving member such as a clutch member described later are opened 315. The driving force accommodated in the differential case 3 and transmitted to the differential case 3 is transmitted to each accommodating member.

  The pinion 303 engages with the differential case 3 at its end, is prevented from being removed by a pin 317, is supported by a pinion shaft 319 that is rotationally driven integrally with the differential case 3, and revolves as the differential case 3 rotates. The pinion 303 transmits a driving force to the pair of side gears 5, 305 and is rotatably supported by the pinion shaft 319 so as to be driven to rotate when a differential rotation occurs between the pair of side gears 5, 305 engaged with each other. ing. In addition, a spherical washer 321 is disposed between the back side of the pinion 303 and the differential case 3 to receive radial movement that occurs when the pinion 303 revolves.

  The pair of side gears 5, 305 are supported by the differential case 3 so as to be relatively rotatable by the small diameter part on the end side of the boss part 323 and the boss part 325, and mesh with the pinion 303. In addition, thrust washers 327 and 329 are disposed between the side gears 5 and 305 and the differential case 3 and receive the movement of the side gears 5 and 305 in the axial direction due to the meshing reaction force with the pinion 303. The pair of side gears 5, 305 are provided with spline-shaped connecting portions 331, 333 on the inner peripheral side, and drive shafts (not shown) connected to the left and right wheels are connected to the side gears 5, 305 so as to be integrally rotatable. The driving force input to the differential case 3 is output to the left and right wheels.

  In such a differential device 301, the clutch device 1 is mounted in order to bring the differential of the differential mechanism 307 into a locked state. Hereinafter, a clutch device according to an embodiment of the present invention will be described with reference to FIGS.

(First embodiment)
1st Embodiment is described using FIGS. 1-3.

  The clutch device 1 according to the present embodiment includes a differential case 3 and a side gear 5 as a pair of rotational members arranged so as to be relatively rotatable, and is arranged between the differential case 3 and the side gear 5 to intermittently connect the differential case 3 and the side gear 5. A clutch member 19 as an intermittent member in the intermittent mechanism 7, a movable member 9 that is axially movable in the differential case 3 as one rotating member and is supported in the radial direction and intermittently operates the intermittent mechanism 7, and a radial direction in the differential case 3 And an electromagnet 11 for moving the movable member 9 in the axial direction.

  In the differential case 3, a movable member locking portion 13 that comes into contact with the end surface of the movable member 9 and locks the movement of the movable member 9 in one axial direction is integrated with the movable member locking portion 13. Locking means 17 having an electromagnet locking portion 15 that is provided and is in contact with the end surface of the electromagnet 11 and locks the movement of the electromagnet 11 in the axial direction is provided.

  The electromagnet locking portions 15 of the locking means 17 are provided at a plurality of locations in the circumferential direction with respect to the end surface of the electromagnet 11.

  Further, the movable member locking portion 13 of the locking means 17 has an annular contact surface that contacts the end surface of the movable member 9, which will be described in detail later.

  As shown in FIGS. 1 to 3, between the differential case 3 and the side gear 5, an interrupting mechanism 7 that interrupts the differential of the differential mechanism 307 is provided. The intermittent mechanism 7 includes a clutch member 19 as an intermittent member and an intermittent portion 21.

  In the clutch member 19, a base portion 23 accommodated on the inner space side of the differential case 3 is formed in an annular shape, and the outer peripheral surface of the base portion 23 is supported in the radial direction with respect to the inner peripheral support surface of the differential case 3. On the outer diameter side of the portion 323, it is disposed so as to be axially movable between the one side wall 4 of the differential case 3 and the back side of the side gear 5. Further, the clutch member 19 is provided with a plurality of engaging projections 24 in the circumferential direction, and engages with a plurality of engaging portions 25 provided to open between the rotation directions of the one side wall 4 of the differential case 3. The clutch member 19 is prevented from rotating around the differential case 3 and is arranged so as to be rotatable together with the differential case 3. In addition, the cam surface of the same inclination is formed in the circumferential surface of the engagement convex part 24 and the engagement part 25, and when the clutch member 19 is moved to the connection direction of the interruption part 21, it is an interruption part. 21 connections are strengthened. Between the clutch member 19 and the back side of the side gear 5, there is provided an intermittence portion 21 provided with meshing teeth provided so as to face each other in the axial direction.

  The intermittence portion 21 is composed of meshing teeth formed on the clutch member 19 and meshing teeth formed on the back side of the side gear 5. When the intermittent portion 21 is engaged, the differential case 3 and the side gear 5 are connected, and the differential mechanism 307 enters a differential lock state, that is, a power transmission state as a clutch device. A return spring 27 is provided on the radially inner side of the interrupting portion 21 between the clutch member 19 and the back side of the side gear 5, and biases the clutch member 19 in the disconnecting direction of the interrupting portion 21. Yes. By this return spring 27, the connection of the intermittent portion 21 is released, and the differential lock state of the differential mechanism 307 is released, that is, the power transmission state of the clutch device is released. The intermittent state of the intermittent portion 21 is intermittently operated by the movable member 9 and the return spring 27.

  The movable member 9 is axially movable on the outer periphery of the boss portion 309 of the differential case 3 and is supported in the radial direction, and includes a plunger 29 and a ring member 31. The plunger 29 is made of a magnetic material. A ring member 31 made of a nonmagnetic material for preventing leakage of the magnetic flux of the electromagnet 11 to the differential case 3 side is integrally fixed to the inner periphery of the plunger 29. The ring member 31 is provided on the outer periphery of the differential case 3 with a pressing portion 33 that is axially movable and supported in the radial direction, and that abuts against the end surface of the engaging convex portion 24 of the clutch member 19. Further, the shaft end portion on the inner diameter side of the ring member 31 is formed in an annular shape and is in contact with the end surface of the movable member locking portion 13 in a ring shape, but the shaft end portion on the outer diameter side of the ring member 31 and the shaft end of the plunger 29. The portion faces the base side of the electromagnet locking portions 15 provided at a plurality of locations with respect to the locking means 17. The pressing portion 33 presses the clutch member 19 by pressing the end surface of the engaging convex portion 24 by the movement of the plunger 29 in the axial direction. The movable member 9 is moved by an electromagnet 11. Further, since the tip of the pressing portion 33 engages with the engaging portion 25 (opening) formed in the differential case 3 and rotates together with the differential case 3, the movable member 9 including the plunger 29 and the ring member 31 is connected to the differential case 3. It is the structure which rotates integrally.

  The electromagnet 11 is supported in the radial direction with respect to the differential case 3 by sliding with the inner peripheral surface of the extending portion 35 whose outer diameter side extends in the axial direction of the differential case 3. It has. The electromagnetic coil 37 is molded with resin and accommodated in the core 39. The core 39 is formed of a magnetic material, and the outer diameter side slides with the inner peripheral surface of the extending portion 35 of the differential case 3 and is supported in the radial direction. In addition, the recessed part 40 is provided in the outer periphery of the core 39 in the circumferential direction, and the sliding resistance by sliding with the differential case 3 is reduced. Further, the core 39 is provided with a rotation preventing member 41, and the electromagnet 11 is prevented from rotating in a rotating direction with respect to a stationary system member such as a carrier. In addition, a lead wire 43 connected to a controller (not shown) is connected to the core 39, and energization to the electromagnetic coil 37 is controlled by the controller. An annular flange 42 is provided on the outer diameter side of the core 39 and is disposed so as to be able to contact the tip surface of the extending portion 35 so that movement of the electromagnet 11 to the other side in the axial direction is restricted. Is positioned.

  In the clutch device 1 configured as described above, the shortest magnetic flux loop formed by the magnetic flux passing through the core 39, a part of the differential case 3 (extension portion 35) and the plunger 29 by the excitation of the electromagnet 11 is effectively used. As a result, the plunger 29 is moved to the clutch member 19 side, and the pressing portion 33 of the ring member 31 presses the end surface of the engaging convex portion 24 of the clutch member 19 with good response. By the pressing operation of the clutch member 19 by the movable member 9, the clutch member 19 is moved in the connecting direction of the intermittent portion 21, and the intermittent portion 21 is connected. Due to the connection of the intermittent portion 21, the differential case 3 and the side gear 5 are connected, and the differential mechanism 307 enters the differential lock state.

  The movable member 9 and the electromagnet 11 of the clutch device 1 are moved in one axial direction, specifically, the movable member 9 and the electromagnet 11 are moved away from the differential case 3 by the locking means 17. It is regulated. By this locking means 17, the axial position of the movable member 9 and the electromagnet 11 with respect to the differential case 3 is positioned.

  The locking means 17 is made of a non-magnetic material such as a stainless material, and includes a movable member locking portion 13 and an electromagnet locking portion 15. The movable member locking portion 13 is formed in an annular shape with a part cut away, and a contact surface that is in contact with the annular axial end surface on the opposite side to the side on which the pressing portion 33 of the ring member 31 is formed. Is provided. The movable member locking portion 13 is fixed to a groove portion formed on the outer periphery of the boss portion 309 of the differential case 3 with a snap ring function. When the end surface of the ring member 31 comes into contact with the movable member locking portion 13, the movement of the movable member 9 in the axial direction is locked, and the initial position of the movable member 9 in the axial direction with respect to the differential case 3 is positioned. An electromagnet locking portion 15 is provided integrally on the outer diameter side of the movable member locking portion 13.

  The electromagnet locking portions 15 protrude outward in the radial direction by one member continuous with the movable member locking portions 13 at a plurality of circumferential positions (here, three) on the outer diameter side of the movable member locking portions 13. Formed and abutted against the end face of the core 39. Thus, by providing the electromagnet latching | locking part 15, it will contact | abut with the end surface of the core 39 in the multiple places of the circumferential direction. When the end surface of the core 39 comes into contact with the electromagnet locking portion 15, the axial movement of the electromagnet 11 is locked and the axial position of the electromagnet 11 with respect to the differential case 3 is positioned. As other methods for fixing the locking means 17 to the peripheral surface of the differential case 3, methods such as mutual press fitting, welding, adhesion, and caulking may be used.

  In such a clutch device 1, the movable member locking portion 13 that locks the movement of the locking member 17 toward the one side in the axial direction of the movable member 9 and the electromagnet that locks the movement of the electromagnet 11 toward the one side in the axial direction. Since the locking portion 15 is provided integrally, the movable member 9 and the electromagnet 11 can be locked simultaneously with one member, and the number of parts can be reduced. In addition, since the movable member 9 and the electromagnet 11 can be simultaneously locked with one member, the positioning structure of the movable member 9 and the electromagnet 11 can be simplified.

  In addition, since the movable member 9 and the electromagnet 11 can be simultaneously locked with one member, the initial movement alignment accuracy of the movable member 9 and the electromagnet 11 can be improved, and the initial movement characteristics of the movable member 9 and the electromagnet 11 can be improved. Can be stabilized.

  Furthermore, since the movable member 9 and the electromagnet 11 can be assembled to the differential case 3 by providing the locking means 17 in the differential case 3, the clutch device 1 can be used as one member independent of the peripheral members in the assembled state of the device. It can be handled and the transportability in the assembled state of the clutch device 1 can be improved.

  Further, since the locking means 17 is locked and fixed with a snap ring function in an annular recess formed on the outer periphery of the boss portion 309 of the differential case 3, the structure can be simplified and the assembling property is improved.

  Accordingly, the positioning structure of the movable member 9 and the electromagnet 11 can be simplified, and the initial motion characteristics of the movable member 9 and the electromagnet 11 can be stabilized.

  Moreover, since the electromagnet latching | locking part 15 of the latching means 17 is provided in the multiple places of the circumferential direction with respect to the end surface of the electromagnet 11, while being able to improve the heat dissipation at the time of the temperature rising of the electromagnet 11, an electromagnet 11 and the locking means 17 can be prevented from sticking at the time of relative rotation.

  Furthermore, since the contact surface where the movable member locking portion 13 of the locking means 17 contacts the end surface of the movable member 9 is formed in an annular shape, the position of the end surface of the movable member 9 can be properly held in the circumferential direction. It is possible to stabilize the initial movement characteristics of the movable member 9.

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

  The clutch device 101 according to the present embodiment includes a movable member 103 that is axially movable in the differential case 3 and is supported in the radial direction and intermittently operates the clutch member 19 as the intermittent member in the intermittent mechanism 7, and the differential case 3 in the radial direction. And an electromagnet 105 supported to move the movable member 103 in the axial direction. The differential case 3 is in contact with the end surface of the movable member 103 and locks the movement of the movable member 103 in one axial direction. A locking portion having a locking portion 107 and an electromagnet locking portion 109 that is provided integrally with the movable member locking portion 107 and contacts the end surface of the electromagnet 105 to lock the movement of the electromagnet 105 in one axial direction. Means 111 are provided.

  Further, the electromagnet locking portions 109 of the locking means 111 are provided at a plurality of locations in the circumferential direction with respect to the end surface of the electromagnet 105.

  Further, the movable member locking portion 107 of the locking means 111 has an annular contact surface that contacts the end surface of the movable member 103. 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. In addition, although the reference numerals described in the examples are different, the basic functions of the constituent members using the same name are the same, and therefore, a duplicate description with the first embodiment may be omitted, so the first implementation is performed as necessary. It shall be understood with reference to the configuration and function of the form.

  As shown in FIGS. 4 to 6, the movable member 103 is axially movable and supported in the radial direction on the inner peripheral surface of the extending portion 113 extending in the axial direction of the differential case 3, and includes a plunger 115 and a ring member. 117. The plunger 115 is made of a magnetic material. A ring member 117 made of a nonmagnetic material for preventing leakage of the magnetic flux of the electromagnet 105 to the differential case 3 is integrally fixed to the outer periphery of the plunger 115. The ring member 117 is provided with a pressing portion 119 that is axially movable and supported in the radial direction on the inner periphery of the extending portion 113 of the differential case 3, and abuts against the end surface of the engaging convex portion 24 of the clutch member 19. The pressing portion 119 presses the end surface of the engaging convex portion 24 by the movement of the plunger 115 in the axial direction and presses the clutch member 19. Further, the front end of the pressing portion 119 is engaged with a plurality of engaging portions that are opened in the rotation direction of the one side wall 4 of the differential case 3, and the ring member 117 and the plunger 115 rotate integrally with the differential case 3. . The movable member 103 is moved by an electromagnet 105.

  The electromagnet 105 is supported in the radial direction with respect to the differential case 3 by sliding the inner diameter side with the outer periphery of the boss portion 309 of the differential case 3, and includes an electromagnetic coil 121 and a core 123. The electromagnetic coil 121 is molded with resin and is accommodated in the core 123. The core 123 is made of a magnetic material, and the inner diameter side slides on the boss portion 309 of the differential case 3 and is supported in the radial direction. A recess 310 is provided in the circumferential direction on the outer periphery of the boss portion 309 of the differential case 3 to reduce sliding resistance due to sliding with the core 123. Further, the core 123 is provided with two anti-rotation members 125 in the circumferential direction, and the electromagnet 105 is prevented from rotating in the rotation direction with respect to a stationary member such as a carrier. In addition, the side wall 124 on the inner peripheral side of the core 123 is slidably contacted with the stepped surface of the boss portion 309 and is positioned so that the movement of the electromagnet 105 to the other side in the axial direction is restricted. In addition, a lead wire 127 connected to a controller (not shown) is connected to the core 123, and energization of the electromagnetic coil 121 is controlled by the controller.

  In the clutch device 101 configured as described above, the plunger 115 is a clutch member by a magnetic flux loop formed by a magnetic flux that passes through the core 123, a part of the differential case 3 (boss portion 309) and the plunger 115 by excitation of the electromagnet 105. 19 is moved and operated, and the pressing portion 119 of the ring member 117 presses the end surface of the engaging convex portion 24 of the clutch member 19. By the pressing operation of the clutch member 19 by the movable member 103, the clutch member 19 is moved in the connecting direction of the intermittent portion 21, and the intermittent portion 21 is connected. Due to the connection of the intermittent portion 21, the differential case 3 and the side gear 5 are connected, and the differential mechanism 307 enters the differential lock state.

  The movable member 103 and the electromagnet 105 of the clutch device 101 are moved in the axial direction, specifically, the movement in the direction in which the movable member 103 and the electromagnet 105 are detached from the differential case 3 is caused by the locking means 111. It is regulated. The axial position of the movable member 103 and the electromagnet 105 relative to the differential case 3 is positioned by the locking means 111.

  The locking means 111 is made of a non-magnetic material such as stainless steel, and includes a movable member locking portion 107 and an electromagnet locking portion 109. The movable member locking portion 107 is formed in an annular shape with a part cut away, and is provided with a contact surface that is in contact with the axial end surface of the ring member 117 opposite to the side where the pressing portion 119 is formed. It has been. The movable member locking portion 107 is fixed to a groove formed on the inner periphery of the extending portion 113 of the differential case 3. When the end surface of the ring member 117 comes into contact with the movable member locking portion 107, the movement of the movable member 103 in the axial direction is locked, and the initial position of the movable member 103 in the axial direction with respect to the differential case 3 is positioned. On the inner diameter side of the movable member locking portion 107, an electromagnet locking portion 109 is integrally provided.

  The electromagnet locking portions 109 are formed so as to protrude radially inward at a plurality of circumferential locations (here, three) on the inner diameter side of the movable member locking portion 107 with one member continuous to the movable member locking portion 107. And is brought into contact with the end face of the core 123. Thus, by providing the electromagnet latching | locking part 109, it will contact | abut with the end surface of the core 123 in the multiple places of the circumferential direction. When the end surface of the core 123 abuts against the electromagnet locking portion 109, the axial movement of the electromagnet 105 is locked and the axial position of the electromagnet 105 with respect to the differential case 3 is positioned.

  In such a clutch device 101, the movable member locking portion 107 that locks the movement of the locking member 111 toward the one side in the axial direction and the electromagnet that locks the movement of the electromagnet 105 toward the one side in the axial direction. Since the locking portion 109 is integrally provided, the movable member 103 and the electromagnet 105 can be locked simultaneously with a single member, and the number of parts can be reduced. In addition, since the movable member 103 and the electromagnet 105 can be simultaneously locked by one member, the positioning structure of the movable member 103 and the electromagnet 105 can be simplified.

  In addition, since the movable member 103 and the electromagnet 105 can be locked simultaneously with a single member, the initial movement alignment accuracy of the movable member 103 and the electromagnet 105 can be improved, and the initial movement characteristics of the movable member 103 and the electromagnet 105 can be improved. Can be stabilized.

  Further, since the movable member 103 and the electromagnet 105 can be assembled to the differential case 3 by providing the locking means 111 in the differential case 3, the clutch device 101 can be used as one member independent of the peripheral members in the assembled state of the device. It can be handled and the transportability in the assembled state of the clutch device 101 can be improved.

  Accordingly, the positioning structure of the movable member 103 and the electromagnet 105 can be simplified, and the initial motion characteristics of the movable member 103 and the electromagnet 105 can be stabilized.

  Further, since the electromagnet locking portions 109 of the locking means 111 are provided at a plurality of locations in the circumferential direction with respect to the end surface of the electromagnet 105, the heat dissipation of the electromagnet 105 at the time of temperature rise can be improved, and the electromagnet Sticking at the time of relative rotation between 105 and the locking means 111 can be prevented.

  Furthermore, since the contact surface on which the movable member locking portion 107 of the locking means 111 contacts the end surface of the movable member 103 is formed in an annular shape, the end surface position of the movable member 103 can be properly held in the circumferential direction. The initial motion characteristics of the movable member 103 can be stabilized.

(Third embodiment)
A third embodiment will be described with reference to FIGS.

  In the clutch device 201 according to the present embodiment, the differential case 3 is in contact with the end surface of the movable member 9 to lock the movement of the movable member 9 in the axial direction, and the movable member locking portion 203. A locking means 207 is provided which is provided integrally with the member locking portion 203 and has an electromagnet locking portion 205 which contacts the end face of the electromagnet 11 and locks the movement of the electromagnet 11 in the axial direction. . 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 FIGS. 7 and 8, the locking means 207 includes a plate member 208 made of a nonmagnetic material such as stainless steel and formed in an annular shape such as a washer. The plate member 208 is a movable member. A locking portion 203 and an electromagnet locking portion 205 are provided. The movable member locking portion 203 is provided on the inner diameter side of the annular portion, and has a contact surface that is in contact with the axial end surface of the ring member 31 opposite to the side on which the pressing portion 33 is formed. Is provided. The movable member locking portion 203 is inserted into the outer periphery of the boss portion 309 of the differential case 3. An electromagnet locking portion 205 is integrally provided on the outer diameter side of the movable member locking portion 203.

  The electromagnet locking portion 205 is provided on the outer diameter side of the annular portion, and specifically, is a single member that is continuous with the movable member locking portion 203 in the circumferential direction on the outer diameter side of the movable member locking portion 203. An abutment surface that is formed and abuts against the end surface of the core 39 is provided. The locking means 207 includes a fixing member 209 having a snap ring function, and the axial position is positioned by the fixing member 209.

  The fixed member 209 is formed in an annular shape with a part cut away, such as a C-shaped clip, and is disposed opposite the movable member 9 and the electromagnet 11 with the locking means 207 sandwiched in the axial direction, and the boss portion of the differential case 3 It is fixed to the groove part formed in the outer periphery of 309. The locking means 207 disposed between the fixed member 209 and the movable member 9 and the electromagnet 11 has an appropriate gap (for example, about 0.5 to 1.5 mm) in the axial direction with respect to each member. For this reason, when the differential case 3 is rotated, the locking means 207 functions so as to prevent some contact between members and galling. Further, the plate member 208 is provided with an opening 210 having a notch or a hole, and by sticking through the front and back surfaces, it is possible to prevent sticking with oil or the like on the contact surface with the electromagnet 11. Further, by positioning the locking means 207 by the fixed member 209, the movable member locking portion 203 of the locking means 207 is brought into contact with the end surface of the movable member 9, and the electromagnet locking portion 205 and the end surface of the electromagnet 11 are contacted. As a result, the movement of the movable member 9 and the electromagnet 11 in the axial direction is locked, and the axial positions of the movable member 9 and the electromagnet 11 with respect to the differential case 3 are positioned. That is, the axial position of the movable member 9 and the electromagnet 11 can be positioned by bringing one member of the locking means 207 into contact with the movable member 9 and the electromagnet 11.

  In such a clutch device 201, the movable member locking portion 203 that locks the movement of the movable member 9 in the axial direction of the locking member 207 and the electromagnet that locks the movement of the electromagnet 11 in the axial direction. Since the locking portion 205 is integrally provided, the movable member 9 and the electromagnet 11 can be locked simultaneously with a single member, and the number of parts can be reduced. In addition, since the movable member 9 and the electromagnet 11 can be simultaneously locked with one member, the positioning structure of the movable member 9 and the electromagnet 11 can be simplified.

  In addition, since the movable member 9 and the electromagnet 11 can be simultaneously locked with one member, the initial movement alignment accuracy of the movable member 9 and the electromagnet 11 can be improved, and the initial movement characteristics of the movable member 9 and the electromagnet 11 can be improved. Can be stabilized.

  Accordingly, the positioning structure of the movable member 9 and the electromagnet 11 can be simplified, and the initial motion characteristics of the movable member 9 and the electromagnet 11 can be stabilized.

  Further, since the locking means 207 is formed in an annular shape such as a washer, the shape of the locking means 207 does not need to be complicated, and the structure for positioning the movable member 9 and the electromagnet 11 is further simplified. Can do.

  In the clutch device according to the embodiment of the present invention, the differential of the differential mechanism is intermittently connected by intermittently connecting the differential case as a pair of rotating members and the side gear. This is applied to a so-called differential lock mechanism that connects the side gear 5 to the other side gear 5. However, according to other differential devices, the differential case 3 is driven as a double case that can be relatively rotated on the inner and outer peripheral sides. It can be similarly used for a so-called free running differential mechanism that interrupts the force and transmits the driving force from the outer peripheral differential case to the inner peripheral differential case having a differential mechanism. Furthermore, the present invention is not limited to this, and any mechanism may be used to form the pair of rotating members, such as a structure in which the power transmission of the transmission mechanism is interrupted by interrupting a pair of relatively rotatable rotating members. Good.

  Moreover, although the movable member locking part and the electromagnet locking part are formed as a single continuous member, the movable member locking part and the electromagnet locking part are integrally provided. The engaging portion and the electromagnet engaging portion may be formed separately, and the movable member engaging portion and the electromagnet engaging portion may be integrally provided by fixing means such as welding.

  Furthermore, although the meshing clutch is applied as the intermittent portion of the intermittent mechanism, the present invention is not limited to this, and any form may be used as long as it is a mechanism that intermittently connects a pair of rotating members such as a friction clutch.

DESCRIPTION OF SYMBOLS 1,101,201 ... Clutch device 3 ... Differential case 5 ... Side gear 7 ... Intermittent mechanism 9, 103 ... Movable member 11, 105 ... Electromagnet 13, 107, 203 ... Movable member latching part 15, 109, 205 ... Electromagnet latching part 17, 111, 207 ... locking means 19 ... clutch member (intermittent member)

Claims (3)

A pair of rotating members arranged so as to be relatively rotatable, an intermittent member arranged between the pair of rotating members and intermittently connecting the pair of rotating members, and axially moved to any one of the pair of rotating members. a movable member is movably supported to intermittently operate said intermittent member, and a spring discontinuous portion of the intermittent member biases the movable member to the one axial side to which the connection release direction, for the rotating member of the one a clutch device comprising an energizable electromagnet as Rutotomoni the discontinuous portion is supported radially and axially other side moves operate the movable member in the other axial side to which the connection direction,
Wherein the rotating member of the one, when the electromagnet is not energized, the movable member locking portion for locking the movement in the said axial direction one side of the movable member in contact with an end surface of said movable member and those, locking means having an electromagnet locking portion for locking the movement in the said axial direction one side end face and in contact with the electromagnet of the movable member engaging portion and the electromagnet provided integrally is fixed A clutch device characterized by that. The clutch device according to claim 1,
The clutch device according to claim 1, wherein the electromagnet locking portions of the locking means are provided at a plurality of locations in a circumferential direction with respect to an end surface of the electromagnet. The clutch device according to claim 1 or 2,
The clutch device according to claim 1, wherein the movable member locking portion of the locking means has an annular contact surface that contacts the end surface of the movable member.

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