Manual hoist and traction machine.

摘要

The invention relates to a manual hoist and traction machine wherein an outer diameter of a first lining plate (13) constituting a mechanical brake is made smaller than an inner diameter mainly of a driven disc at a wheel of a handwheel (11), outer diameter of a second lining plate (14) and a driven disc are made smaller than an inner diameter of a cylindrical portion of a braking ratchet wheel (12), and the first and second lining plates (13, 14) are formed of lining raw material having performance of compressive strength of 15(Kgf/mm<2>) or more and the maximum strain of 12(10<-><3>mm/mm) or more.