Vibration-proof power take-off device for engine and shaft displacement absorbing coupling.

摘要

A vibration-proof power take-out device for an engine includes resilient support means 3 through which the engine is carried on a support 1, and a displacement absorbing joint 5 for connecting an output shaft 2a of the engine to a power take-out member 61, 62. The displacement absorbing joint 5 comprises a first joint member 13 for connection to the output shaft 1, a second joint member 14 for connection to the power take-out member 61, 62, and a resilient member 16, 17 for resiliently interconnecting both the joint members 13, 14. The second joint member 14 is rotatably carried on the support 1 through a bearing means 23. Thus, even if the power take-out member 61, 62 is disposed near the output shaft 2a, engine vibration can be absorbed by the resilient support means 3 and the resilient member 16, 17, and the second joint member 14 can be fixedly supported by the bearing 23, thereby effectively preventing the transmission of vibration to the power take-out member 61, 62. The first joint member 13 includes a first hub 13h having first transmitting fins 13f mounted projecting radially outwardly therefrom, and the second joint member 14 includes a second hub 14h concentrically surrounding the first hub 13h and having second transmitting fins 14f projecting radially outwardly therefrom. An intermediate member 15 has a plurality of intermediate fins 15f opposed to the first and second fins 13f, 14f in a rotational direction. Opposed surfaces of the intermediate fins 15f and the first and second fins 13f, 14f are interconnected through the resilient member 16, 17. Notches 18, through which the first transmitting fins 13f are passed, are provided in the second hub 14h, and a gap is provided between opposed portions of each notch 18 and the respective first fin 13f and can be eliminated when the angle of relative rotation reaches a given value. Thus, both the joint members 13, 14 and the intermediate fins 15f are disposed concentrically, and the entire joint can be made compact. <IMAGE> <IMAGE>