MECANISMES CONVERTISSEURS DE MOUVEMENT

摘要

A speed changing mechanism having a rotary or linear motion and comprising a component provided with a recessed track made up of a number of sections, each including a recess, which are all of one shape and are joined together end-to-end; a component provided with a cam track; and an array of rolling body units, each of which is linearly movable and comprises two rollers arranged respectively in constant contact with the recessed track and the cam track in operation, the number of units being different to the number of recesses. At least one rolling body unit is connected to a piston/cylinder unit. Fluid pressure is either delivered to the unit to move the rolling body unit (s) linearly and drive the mechanism, or the piston/cylinder unit is used to transmit fluid pressure produced by linear movement of the rolling body unit when the mechanism is driven from an external power source.