DRIVING SYSTEM FOR ELEVATORS IN PARTICULAR AND OTHER MATERIAL HANDLING INSTALLATIONS IN GENERAL

摘要

A driving system which enables to move people or goods in a vertical, inclined, horizontal, circular pattern, or any other direction from a starting point "A" to a destination point "B", said driving system being based on the idea to transform rotational energy in translation movement by using two components:1) a rotating drive sheave secured to a body carriage and equiped with an external helicoidal profile having a nominal medium diameter "Dm" and pitch "R", and2) a guiding path extending between said points "A" and "B", comprising a plurality of equally spaced apart rollers, wherein the distance between two adjacent rollers is equal to said pitch "R"; sustaining means holding the said drive sheave in a constant adjacent relation to said guiding path, wherein the distance between the centre line of said drive sheave's helicoidal profile and the radial centre line axis of the adjacent engaged guiding path's roller is equal to "Dm"/2, enables that accordingly to the said drive sheave's direction of rotation, the said body carriage to be moved between said points "A" and "B" onward or backward. Or a driving system as described above where the two said components are:1) a supporting body having wrapped around a helicoidal pattern a plurality of rollers, and2) a guiding path comprising a plurality of helicoidal sectors; both said components being coaxially disposed and having the same nominal diameter "Dm" and pitch "R".