| 摘要 |
PURPOSE: To provide an operation device of transmission that has improved structure space and efficiency. CONSTITUTION: A friction clutch 11 has at least a first adjust ring that is rotatable to the shaft and is fixed in axial direction, and at least a second pressure ring that is rotatable to the shaft and is axially slidable. The two rings are so arranged that are mutually rotatable within limited angles. At least three pairs of circumferential ditches for rotary bodies are arranged in opposite faces of the pressure ring 2 and the adjust ring 1 with changing its depth respectively in reverse direction. The pressure ring 2 acts on a friction clutch 11 through thrust bearings 3, 5. The adjust ring 1 and the pressure ring 2 can mutually be opened or closed. The friction clutch at least partially surrounds the opening mechanism at radial direction, acts on the adjust ring through teeth 8 of outer circular plate 1a that is connected to the adjust ring 1 and includes a wheel drive device and/or a chain drive device. |
