| 摘要 |
PURPOSE:To keep sufficient airtightness and largely reduce the friction resistance by fixing a plurality of pulleys on a rotary shaft at intervals along the shaft and providing non-expandable pliable transmission means between the pulleys. CONSTITUTION:Inside pulleys 23 and outside pulleys 24 are diposed with an axial interval therebetween, and fixed on an output shaft 22. The inside pulleys 23 are connected by an inside rope 26, of which the canter is fixed to a piston 21 by a fixing ball 30. The outside pulleys 24 are connected by an outside rope 27, of which the center is fixed to a linear power take-out means 41 by the fixing ball 30. When the piston 21 operates, the pulleys rotate respectively in their operating directions, and the linear power is taken out by the means 41. |
