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

Claim 11:
12. The two-speed transmission apparatus for an electric vehicle according to claim 11,
wherein said thrust transmission member is pivotally mounted on said housing at one end,
wherein said thrust transmission member is constituted as a swing arm which is loosely fitted into an inner screw member at a diameter conflict position at another end across said first multi-plate friction clutch and said second multi-plate friction clutch,
wherein said clutch pressure member pivotally mounted on said swing arm at said diameter conflict position and is located between counter-face surfaces of said first multi-plate friction clutch and said second multi-plate friction clutch, and
wherein said forward and backward rotation of said swing arm due to said axial back and forth movement of said inner screw member fastens said first multi-plate friction clutch and said second multi-plate friction clutch while said clutch pressure member meets said first multi-plate friction clutch or said second multi-plate friction clutch.