Patent ID: 9518620
Filing Date: 2016-12-13
CPC Classification: B60K,F16D

Claim Text:
1. A disconnector-type clutch for a rear wheel-driving device in a 4-wheel driving electric vehicle, the disconnector-type clutch comprising: an actuator motor generating rotation power; a worm gear connected to the actuator motor; a screw rotating in engagement with the worm gear; a first push case converting a rotary motion of the screw into a linear reciprocating motion; a second push case assembled with the first push case, the first push case and the second push case collectively defining a cavity; a first spring installed between the first push case and the second push case and located within the cavity; a second spring installed at an exterior side of the second push case to provide a restoration force; a shifting fork connected to the second push case and moving forward and backward; and a sleeve connected to the shifting fork and connecting or disconnecting a first rear-wheel driving shaft and a second rear-wheel driving shaft; wherein the first push case has outer and inner case portions and a screw thread to be engaged with the screw is formed on an inner circumferential surface of the inner case portion, at least a portion of the second push case being received between the outer and inner case portions.