KR20230152293A - Disconnector apparatus - Google Patents

Abstract

The present invention relates to a disconnector device applied to eco-friendly vehicles such as electric vehicles and hybrid vehicles, and includes an outer case into which a driving force is input and one side of which is open, an inner case provided for relative rotation inside the outer case, and A differential unit provided inside the inner case and rotating together and connected to the output shaft, a diff case fastened to the open side of the outer case and rotating together with the outer case, and disposed in the diff case and optionally connected to the inner case It includes a connector that is fastened to transmit or block driving force to the inner case, and a driving unit that operates the connector.

Description

DISCONNECTOR APPARATUS}

The present invention relates to a disconnector device, and more specifically, to a disconnector device applied to eco-friendly vehicles such as electric vehicles and hybrid vehicles.

Generally, automobiles are driven by transmitting power generated from the engine to tires through a power transmission device consisting of a transmission, input shaft, reducer, differential device, etc.

The differential unit is a device for differentiating the rotational speed of the left and right driving wheels of a car and distributing driving torque to the left and right driving wheels. This is because the turning radii of the inner and outer wheels are different when the car turns, so the differential is a device that changes the rotation speed of the inner and outer wheels.

A typical differential is a differential drive gear that receives power from the engine, two opposing side gears connected to a shaft or constant velocity joint that transmits power to both wheels, and a pinion that meshes with the two opposing side gears. It consists of a differential gear case that accommodates the pinion gear, side gear, and pinion gear rotating around the axis, and rotates in conjunction with the differential drive gear. This differential unit is disclosed in Korean Patent Publication No. 2021-0026712.

On the other hand, the reducer of an automobile is composed of a housing in which a plurality of gear shaft mounting holes are formed, a plurality of gears mounted together with the shaft in the mounting holes, and one of these plurality of gears is a differential drive gear included in the differential part. . In other words, the power transmitted by the reducer is finally transmitted to the differential drive gear among the gears of the reducer, and the transmitted power is used to rotate the wheels of the vehicle.

A disconnector is disposed in the reducer, and the power of the engine can be transmitted or blocked by the disconnector.

Figure 1 is a perspective view showing a disconnector device connected to a conventional reducer.

Referring to FIG. 1, a conventional reducer includes a differential drive gear 11, a differential gear case 12 bolted to the differential drive gear 11, and a pinion fixedly coupled in the radial direction within the differential gear case 12. Two pinion gears 13 rotatably coupled at both ends of the gear shaft 15, and two gears rotatably engaged with the two pinion gears 13 about an axis perpendicular to the pinion gear shaft 15. It includes a disconnector assembly 20 including a side gear 14 and a disconnector shaft 21 that is connected to one side gear 14 and rotates with the one side gear 14.

The disconnector assembly 20 includes a disconnector shaft 21, a hub 22 connected to a constant velocity joint, and a sleeve 23 that meshes with the disconnector shaft 21 and the hub 22 to connect or disconnect them. ), an actuator 24, and a fork 25 that moves in the axial direction by the actuator 24 to move the sleeve 23 in the axial direction.

In the reducer with this configuration, the sleeve 23 is engaged with the disconnector shaft 21 in the disconnector off mode while traveling. Accordingly, even if both wheels rotate, the rotational force of the wheels is not transmitted to the disconnector shaft (21), so only the side gear (14) and pinion gear (13) rotate. Therefore, the differential gear case 12 and the differential drive gear 11 bolted thereto do not rotate.

As such, the conventional disconnector assembly 20 is constructed separately from the differential, so the number of parts increases, which makes it difficult to make the vehicle lighter, and the manufacturing cost increases as assembly quality decreases.

Korean Patent Publication No. 2021-0026712 (2021.03.10) Korean Patent Publication No. 2017-0123869 (2017.11.09)

The present invention was created to solve the above problems, and its purpose is to provide a disconnector device that can reduce the number of parts by configuring the disconnector device in the differential part.

In order to achieve the above object, a disconnector device according to a preferred embodiment of the present invention includes an outer case into which a driving force is input and one side of which is open; an inner case provided to be relatively rotatable inside the outer case; a differential unit provided inside the inner case, rotating together, and connected to the output shaft; a diff case fastened to the open side of the outer case and rotating together with the outer case; a connector disposed in the diff case and selectively coupled to the inner case to transmit or block driving force to the inner case; and a driving unit that operates the connector.

Here, the deep case includes an output shaft receiving portion formed to have a smaller diameter than the outer case and inside which the output shaft is disposed; a flange portion extending radially from the output shaft receiving portion; and a connector accommodating portion that protrudes in the axial direction from an end of the flange portion and is fastened to the outer case, and accommodates at least a portion of the connector inside.

And, the connector includes: a connector body disposed on the inner peripheral surface of the connector accommodating portion and having axial gear teeth formed in engagement with axial gear teeth formed on the inner case; and a guide protrusion that protrudes from the connector body in the axial direction, is inserted into a through hole formed in the flange portion, and is pressed by the driving unit.

The guide protrusion has radial gear teeth formed on its radial outer peripheral surface, and radial gear teeth with which the radial gear teeth of the guide protrusion engage are formed on the inner peripheral surface of the connector accommodating part, so that the relative rotation of the connector with the diff case is restricted. It can be accomplished.

Here, the radial gear teeth formed on the inner peripheral surface of the connector accommodating part may be formed to extend to the through hole formed in the flange part.

Alternatively, the guide protrusion may have radial gear teeth formed on its radial inner peripheral surface, and radial gear teeth with which the radial gear teeth of the guide protrusion may engage are formed in the through hole formed in the flange portion, and the connector may be connected to the diff case. The relative rotation may be constrained.

The driving unit includes a push plate disposed in close contact with the connector on the outer peripheral surface of the diff case; an actuator disposed on the outer peripheral surface of the deep case and moving the push plate to press the connector so that the connector is coupled to the inner case; an elastic return portion that has one end fixed to the connector and the other end supported by the deep case to return the connector to a position where it is disengaged from the inner case; and a rotation support part provided between the actuator and the diff case to support relative rotation.

And, the elastic return part includes a snap ring inserted into and fastened to a fastening slit formed in the connector; and a leaf spring having one end supported by the snap ring and the other end supported by the deep case to apply elastic force in a direction in which the connector is spaced apart from the inner case.

The differential unit includes a differential gear shaft whose both ends are inserted into fastening holes formed in the inner case and rotates together with the inner case; A fastening pin that penetrates both the fastening hole and the differential gear shaft and is fastened to the inner case to fasten the differential gear shaft to the inner case; A pair of differential gears inserted into and rotating on the differential gear shaft; A side pinion provided as a pair, arranged to face each other, and rotating in engagement with the differential gear; And a side pinion shaft extending in the axial direction from each of the side pinions and to which the output shaft is fastened.

According to the disconnector device according to the present invention, the number of parts can be reduced by configuring the disconnector device in the differential part, thereby achieving weight reduction of the automobile, and the manufacturing cost can be reduced as assembly is improved. You can get it.

1 is a perspective view schematically showing a conventional disconnector device;
Figure 2 is a cross-sectional view schematically showing a disconnector device according to an embodiment of the present invention;
Figure 3 is an exploded cross-sectional view schematically showing a disconnector device according to an embodiment of the present invention;
Figure 4 is an exploded perspective view schematically showing the main part of the disconnector device according to an embodiment of the present invention;
Figure 5 is a partial enlarged cross-sectional view schematically showing a state in which the connector is disconnected from the inner case in the disconnector device according to an embodiment of the present invention;
Figure 6 is a partial enlarged cross-sectional view schematically showing the state in which the connector is fastened to the inner case in the disconnector device according to an embodiment of the present invention;
Figure 7 is a diagram schematically showing the state in which the elastic return part is installed in the disconnector device according to an embodiment of the present invention;
Figure 8 is a diagram schematically showing another embodiment of a connector and a case in a disconnector device according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be interpreted as including all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions may include plural expressions, unless the context clearly indicates otherwise.

Unless otherwise defined, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries can be interpreted as having meanings consistent with the meanings they have in the context of related technologies, and unless clearly defined in this application, are interpreted as having an ideal or excessively formal meaning. It may not work.

Hereinafter, specific embodiments of the present invention will be described with reference to the attached drawings.

Figures 2 and 3 are cross-sectional and separated cross-sectional views schematically showing a disconnector device according to an embodiment of the present invention, and Figure 4 is an exploded perspective view schematically showing the main part of the disconnector device. 5 and 6 are partial enlarged cross-sectional views schematically showing the state in which the connector is unlocked and fastened to the inner case in the disconnector device, and Figure 7 schematically shows the state in which the elastic return portion is installed in the disconnector device. This is the drawing shown. And, Figure 8 is a diagram schematically showing another embodiment of the connector and the case in the disconnector device.

Referring to FIGS. 2 to 8 , the disconnector device 100 according to an embodiment of the present invention includes an outer case 200 to which a driving force is input and one side of which is open, and an interior of the outer case 200 capable of relative rotation. The inner case 400 is provided inside the inner case 400 and rotates together and is connected to the output shaft 800. A def case 300 that rotates together with the outer case 200, is disposed on the def case 300 and is selectively fastened to the inner case 400 to transmit or block driving force to the inner case 400. It includes a connector 600 and a driving unit 700 that operates the connector 600.

The outer case 200 is configured to rotate by inputting driving force from an engine (not shown) or an electric motor (not shown).

For example, the outer case 200 is formed to have a U-shape in cross section, and the inner case 400 is placed inside the hollow case, and the deep case 300 is fastened to the open side. In addition, the outer case 200 is formed through the center so that the output shaft 800 is inserted and disposed.

The deep case 300 is fastened to the open side of the outer case 200 and rotates together with the outer case 200.

As an example, the deep case 300 is formed with a smaller diameter than the outer case 200, includes an output shaft receiving portion 320 on the inside of which the output shaft 800 is disposed, and a radius in the output shaft receiving portion 320. A flange portion 330 extending in the direction, and a connector accommodating portion that protrudes in the axial direction from an end of the flange portion 330 and is fastened to the outer case 200 and accommodates at least a portion of the connector 600 inside. It can be done including (310). That is, the diff case 300 may have a T-shaped cross section.

The inner case 400 is formed in a ring shape with its center penetrating, and axial gear teeth 410 protruding in the axial direction along the circumferential direction are formed on one side. Also, the differential portion 500 is disposed inside the inner case 400 having a hollow interior.

The connector 600 is disposed on the inner peripheral surface of the connector receiving portion 310 in the deep case 300 and can rotate together and slide in the axial direction, and the portion penetrating the flange portion 330 is connected to the driving unit ( It is operated by 700 and is selectively fastened to the inner case 400 to transmit or block the driving force of the outer case 200 to the inner case 400.

As an example, the connector 600 is disposed on the inner peripheral surface of the connector accommodating portion 310 and has an axial gear tooth 611 formed in engagement with the axial gear tooth 410 formed in the inner case 400 ( 610) and a guide protrusion 620 that protrudes in the axial direction from the connector body 610, is inserted into the through hole 331 formed in the flange portion 330, and is pressed by the driving unit 700. You can.

That is, the connector 600 is capable of sliding in the axial direction while the connector body 610 is fastened to the inner peripheral surface of the connector receiving portion 310 and rotates together. And, when the guide protrusion 620 disposed through the flange portion 330 is pressed by the driving unit 700, the connector body 610 slides toward the inner case 400, and the inner case The axial gear tooth 410 protruding in the axial direction of 400 and the axial gear tooth 611 protruding in the axial direction from the connector body 610 are engaged and fastened to each other.

In this way, when the axial gear teeth 410 formed on the inner case 400 and the axial gear teeth 611 formed on the connector body 610 are engaged and fastened, the rotational driving force of the outer case 200 is applied to the inner case ( 400), causing the inner case 400 to rotate.

Here, the guide protrusion 620 may be formed in plural numbers along the circumferential direction of the connector body 610. In this case, a plurality of through holes 331 are also formed in the flange portion 330 so that each of the guide protrusions 620 can be inserted.

In addition, the guide protrusion 620 has radial gear teeth 621 formed on its radial outer peripheral surface, and the radial gear teeth 621 of the guide protrusion 620 are engaged with the inner peripheral surface of the connector receiving portion 310. A radial gear tooth 311 is formed so that the connector 600 is restricted from rotating relative to the deep case 300, and the rotational driving force of the outer case 200 can be transmitted to the connector 600.

Here, the radial gear tooth 311 formed on the inner peripheral surface of the connector receiving portion 310 extends to the through hole 331 formed in the flange portion 330.

Alternatively, referring to FIG. 8, the guide protrusion 620 has a radial gear tooth 621 formed on the radial inner peripheral surface, and the guide protrusion 620 is provided in the through hole 331 of the flange portion 330. A radial gear tooth 311 with which the radial gear tooth 621 engages is formed, so that the connector 600 is constrained in relative rotation with the deep case 300, and the rotational driving force of the outer case 200 is applied to the connector. It can be sent to (600).

Of course, although not shown in the drawing, radial gear teeth are formed on both the radial inner and outer peripheral surfaces of the guide protrusion 620, and the inner peripheral surface of the connector receiving portion 310 and the through hole of the flange portion 330 ( In 331), all radial gear teeth may be formed so that the radial gear teeth formed on the guide protrusion 620 may be engaged and fastened to each other.

Through this, it is possible to prevent rotational clearance between the connector 600 and the differential case 300 while allowing the axial movement of the connector 600, thereby preventing the differential case 300 and the connector 600 from occurring. ) can prevent noise and damage caused by collisions between

The driving unit 700 is configured to slide the connector 600 in the axial direction.

As an example, the driving unit 700 includes a push plate 710 disposed in close contact with the connector 600 on the outer peripheral surface of the def case 300, and a push plate 710 disposed on the outer peripheral surface of the def case 300 and the connector 600. ) is an actuator 720 that moves the push plate 710 to press the connector 600 to engage with the inner case 400, and one end is fastened to the connector 600 and the other end is connected to the An elastic return part 730 supported by the deep case 300 to return the connector 600 to the position where it is released from the inner case 400, and between the actuator 720 and the deep case 300 It may include a rotation support part 740 that is provided and supports relative rotation.

The push plate 710 is formed as a ring-shaped flat plate with a penetrating center, and is inserted into the output shaft receiving portion 320 and placed in close contact with the guide protrusion 620 of the connector 600.

The actuator 720 is formed in the form of a ring with a penetrating center, is inserted into the output shaft receiving portion 320, and the push plate 710 is fastened to the end of the rod 721 moving in the axial direction.

The actuator 720 is made of a solenoid, and when a current is applied, the rod 721 protrudes outward and presses the push plate 710 to cause an axial gear formed in the inner case 400 ( The axial gear teeth 611 formed on the connector body 610 may be driven to engage 410. Of course, the actuator 720 is not limited to this and can be configured in any shape as long as it can pressurize the push plate 710.

The rotation support part 740 is provided with a bearing and is provided between the actuator 720 and the diff case 300 to support relative rotation. To this end, a rotation support fastening groove 321 into which the rotation support 740 is inserted and fastened may be formed on the outer peripheral surface of the output shaft receiving portion 320 of the diff case 300.

With this configuration, the push plate 710 and the actuator 720 are sequentially inserted into the output shaft receiving portion 320, and then the rotation support portion 740 is inserted into the output shaft receiving portion 320 to fasten the rotation support portion. The outer peripheral surface may be fastened to support the actuator 720 while being inserted into the groove 321.

In addition, a stopper 750 for fixing the rotation support part 740 to prevent the rotation support part 740 from being separated may be further provided in the output shaft receiving part 320. That is, a stopper fastening groove 322 is formed on the outer peripheral surface of the output shaft receiving portion 320, and the stopper 750, which is provided as a snap ring, is fastened to the stopper fastening groove 322 to position the rotation support portion 740. It can be fixed.

One end of the elastic return part 730 is fastened and fixed to the connector 600, and the other end is supported by the diff case 300, so that the connector 600 is disconnected from the inner case 400. It is a configuration that returns to .

That is, when the actuator 720 is operated by applying current, the push plate 710 is pressed to fasten the connector 600 to the inner case 400, and the current applied to the actuator 720 is blocked. When the push plate 710 returns to its original position due to the elastic force of the elastic return unit 730, the connector 600 can be separated from the inner case 400.

As an example, the elastic return portion 730 includes a snap ring 732 that is inserted into and fastened to the fastening slit 622 formed in the connector 600, one end of which is supported by the snap ring 732, and the other end of which is connected to the diff case. It may include a leaf spring 732 that is supported by 300 and applies elastic force in a direction away from the inner case 400 of the connector 600.

More specifically, referring to FIG. 7, the fastening slit 622 is formed on the inner peripheral surface of the end of the guide protrusion 620 of the connector 600, and the guide protrusion 620 penetrates the flange portion 330. After inserting the leaf spring 732 into the output shaft receiving portion 320 while disposed through the hole 331, the snap ring 732 is fastened to the fastening slit 622 to secure the leaf spring 732. can be fixed.

At this time, the leaf spring 732 has one end supported by the snap ring 732 and the other end supported by the flange portion 330 of the diff case 300 to form an axial gear formed on the connector body 610. Elastic force is applied so that 611 is separated from the axial gear tooth 410 formed in the inner case 400.

With this configuration, when the load 721 operates by applying current to the actuator 720, the push plate 710 presses the connector 600, as shown in FIG. 6, to press the connector body ( The axial gear teeth 611 formed in 610 can be moved to be fastened to the axial gear teeth 410 formed in the inner case 400.

Then, when the current applied to the actuator 720 is cut off, the connector 600 is returned to its original position by the elastic force of the elastic return unit, as shown in FIG. 5, and the shaft formed in the connector body 610 The directional gear teeth 611 can be moved to be separated from the axial gear teeth 410 formed in the inner case 400.

In addition, the disconnector device 100 according to an embodiment of the present invention may further include a sensor unit 760 that detects the moving distance of the push plate 710.

The sensor unit 760 is composed of a laser sensor or a Hall sensor and can measure the distance the push plate 710 moves. Accordingly, the position of the push plate 710 measured through the sensor unit 760 can be accurately determined, making it possible to clearly determine whether the connector 600 is fastened to the inner case 400.

Additionally, the current value applied to the actuator 720 can be controlled from the data of the sensor unit 760. That is, the current value applied to the actuator 720 while the push plate 710 moves to fasten the connector 600 to the inner case 400, and the connector 600 is connected to the inner case ( The current value applied to the actuator 720 may be different in order to maintain the fastened state in 400). Therefore, it is possible to easily control the current value by determining the position of the push plate 710 from the data of the sensor unit 760.

The differential unit 500 is provided inside the inner case 400, rotates together, and is connected to the output shaft 800. That is, when the connector 600 is coupled to the inner case 400 and transmits the driving force of the outer case 200 to the inner case 400, the inner case 400 rotates and the output shaft 800 The rotational driving force can be transmitted to the wheel (not shown).

As an example, the differential unit 500 includes a differential gear shaft 510 whose both ends are inserted into the fastening hole 420 formed in the inner case 400 and rotates together with the inner case 400, and the fastening hole ( 420) and a fastening pin 520 that penetrates the differential gear shaft 510 together and is fastened to the inner case 400 to fasten the differential gear shaft 510 to the inner case 400, and the differential gear A pair of differential gears 530 that are inserted into the shaft 510 and rotate, a side pinion 540 provided in a pair, arranged to face each other, and rotating in engagement with the differential gear 530, and the side pinion ( It may include side pinion shafts 551 and 552 that extend in the axial direction from 540 and are respectively disposed in the output shaft receiving portion 320 and the outer case 200 and to which the output shaft 800 is fastened.

Here, the side pinion shafts 551 and 552 are provided as a pair and each extends from the pair of side pinions 540. In addition, the first side pinion shaft 551 disposed in the output shaft receiving portion 320 is disposed to rotate relative to the output shaft receiving portion 320, and the second side pinion shaft 552 is disposed in the outer case 200. It is placed in relative rotation at the center of .

Here, a side pinion shaft support groove 210 is formed in the outer case 200 so that the second side pinion shaft 552 is inserted and rotationally supported along the periphery of the penetrating central portion.

In addition, a bearing 560 may be provided between the output shaft receiving portion 320 and the first side pinion shaft 551 so that they can rotate relative to each other. As an example, a bearing receiving groove 323 into which the bearing 560 is inserted and fastened is formed on the inner peripheral surface of the output shaft receiving portion 320, so that after the bearing 560 is inserted and fastened, the bearing 560 1 It can be installed to be rotationally supported by inserting the side pinion shaft (551).

The output shaft 800 may also be provided as a pair, with one end inserted into the side pinion shafts 551 and 552 and fastened to rotate together, and a wheel (not shown) fastened to the other end.

Through this configuration, the driving force generated from the engine or electric motor is transmitted to the deep case 300 through the outer case 200, and the connector 600 slides and moves by the driving unit 700 to connect to the inner case. When fastened to 400, the rotational driving force of the case 300 is transmitted to the inner case 400 and rotates together. And, when the inner case 400 rotates, the differential gear shaft 510 rotates together and the pair of differential gears 530 rotate, and as the differential gear 530 rotates, the pair of side pinions ( 540) can be rotated to finally rotate the output shaft 800 to transmit rotational driving force to the wheel.

Although the present invention has been described in detail through specific examples, this is for detailed explanation of the present invention, and the present invention is not limited thereto, and the present invention is intended to be understood by those skilled in the art within the technical spirit of the present invention. It is clear that modification or improvement is possible.

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

100: Disconnector device 200: Outer case
300: Def case 310: Connector receiving portion
320: output shaft receiving portion 330: flange portion
340: Stopper 400: Inner case
500: Differential part 510: Differential gear shaft
520: fastening pin 530: differential gear
540: Side pinion 551, 552: Side pinion shaft
560: Bearing 600: Connector
610: Connector body 620: Guide protrusion
700: Drive unit 710: Push plate
720: Actuator 730: Elastic return unit
731: Snap ring 732: Leaf spring
740: Rotation support 750: Stopper
760: sensor unit 800: output shaft

Claims (9)

An outer case into which driving force is input and one side open;
an inner case provided to be relatively rotatable inside the outer case;
a differential unit provided inside the inner case, rotating together, and connected to the output shaft;
a diff case fastened to the open side of the outer case and rotating together with the outer case;
a connector disposed in the diff case and selectively coupled to the inner case to transmit or block driving force to the inner case; and
a driving unit that operates the connector;
A disconnector device comprising a.
According to paragraph 1,
The def case is,
an output shaft receiving portion formed with a smaller diameter than the outer case and inside which the output shaft is disposed;
a flange portion extending radially from the output shaft receiving portion; and
a connector accommodating portion that protrudes axially from an end of the flange portion and is fastened to the outer case, and accommodates at least a portion of the connector therein;
A disconnector device comprising a.
According to paragraph 2,
The connector is,
a connector body disposed on an inner peripheral surface of the connector accommodating portion and having axial gear teeth formed in engagement with axial gear teeth formed on the inner case; and
a guide protrusion that protrudes in the axial direction from the connector body, is inserted into a through hole formed in the flange portion, and is pressed by the driving unit;
A disconnector device comprising:
According to paragraph 3,
The guide protrusion has radial gear teeth formed on its outer peripheral surface in the radial direction,
Radial gear teeth with which radial gear teeth of the guide protrusion engage are formed on the inner peripheral surface of the connector receiving portion,
A disconnector device, characterized in that the relative rotation of the connector and the diff case is restricted.
According to paragraph 4,
A disconnector device, characterized in that the radial gear tooth formed on the inner peripheral surface of the connector receiving portion extends to the through hole formed in the flange portion.
According to paragraph 3,
The guide protrusion has radial gear teeth formed on its inner peripheral surface in the radial direction,
A radial gear tooth with which the radial gear tooth of the guide protrusion engages is formed in the through hole formed in the flange portion,
A disconnector device, characterized in that the relative rotation of the connector and the diff case is restricted.
According to paragraph 1,
The driving unit,
a push plate disposed in close contact with the connector on the outer peripheral surface of the diff case;
an actuator disposed on the outer peripheral surface of the deep case and moving the push plate to press the connector so that the connector is coupled to the inner case;
an elastic return portion that has one end fixed to the connector and the other end supported by the deep case to return the connector to a position where it is disengaged from the inner case; and
a rotation support part provided between the actuator and the diff case to support relative rotation;
A disconnector device comprising:
In clause 7,
The elastic return unit,
A snap ring inserted into and fastened to a fastening slit formed in the connector; and
a leaf spring whose one end is supported by the snap ring and the other end is supported by the deep case to apply an elastic force in a direction in which the connector is spaced apart from the inner case;
A disconnector device comprising:
According to paragraph 1,
The differential part,
A differential gear shaft whose both ends are inserted into fastening holes formed in the inner case and rotates together with the inner case;
A fastening pin that penetrates both the fastening hole and the differential gear shaft and is fastened to the inner case to fasten the differential gear shaft to the inner case;
A pair of differential gears inserted into and rotating on the differential gear shaft;
A side pinion provided as a pair, arranged to face each other, and rotating in engagement with the differential gear; and
a side pinion shaft extending in the axial direction from each of the side pinions and to which the output shaft is fastened;
A disconnector device comprising:

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