| 摘要 |
PURPOSE:To obtain a simply constructed and small-sized turning power take-out device which can automatically take out high-speed rotation directly from a driving shaft of an electric motor and low-speed rotation by decelerating a specified speed through a speed reduction gear device mounted on the driving shaft in the forward and backward directions. CONSTITUTION:A transmission body 2 for taking out power of belt pulley type is rotatably supported on a driving shaft 1 of an electric motor M through a bearing 3, and two sets of rotary drums 4, 5 are integrally formed on both sides of the transmission body 2 concentrically. In a drum 4, a pair of frictional pressing members 6 brought into pressure contact with the inner peripheral surface of the drum 4 by centrifugal force are supported on a driving shaft 1. A plurality of engaging portions 7 are formed on the inner peripheral portion of the drum 5, and a plurality of engaging fingers 12 pivoted on an intermediate member 10 mounted on a shaft through a bearing 9 are disposed on the outer periphery of the drum 5 in such a manner that the drum 5 is rotated at a reduced speed through a speed reduction gear device 8 coupled to the driving shaft 1 to interlock therewith. The engaging fingers 12 are provided with projections 12a, 12b capable of engaging with the engaging portions 7 before and behind the pivoting portions 11. |
