Worm gear limit switch device on which a component of a variety of types can be mounted.

摘要

The worm gear limit switch device has very small overall dimensions due to a close-packed arrangement of a set (45) of step-down gears, assembled on two pins (26, 30) ; by means of which is possible to obtain very high final step-down ratios. Inside the casing made up of a base (10) and of a cover (80), there is an intermediate plate (50) with a flat surface (52), on which there is a bush (38) for the movement intake of a variety of components that can be quickly mounted in by using previously prepared seats. The toothed wheels of said set (45) of gears can be assembled by means of hubs with polygonal shape (23, 29, 37) which make the assembling easier.