Patent ID: 11933398
Assignee: UNIPRES CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B  Y | IPC B  F

Claim 2:
3. The two-speed transmission apparatus for an electric vehicle according to claim 2,
wherein said outside diameter member and said thrust transmission member are constituted as a double cylindrical body comprising an inside cylindrical part and an outside cylindrical part which are a same core with a transmission-apparatus center axis line and a radial direction wall part is integrally connected with said inside cylindrical part and said outside cylindrical part,
wherein said inside cylindrical part is screwed with said inside diameter member at outside of said first multi-plate friction clutch and said second multi-plate friction clutch on a central axis line,
wherein said outside cylindrical part is slidably fitted into an inner circumferential surface of said housing while facing to said first multi-plate friction clutch or said second multi-plate friction clutch which is located at proximal side, and
wherein said clutch pressure member is fixed at said outside cylindrical part so as to locate between said first multi-plate friction clutch and said second multi-plate friction clutch.