Patent ID: 7946411
Filing Date: 2011-05-24
Classification: B66B,F16H

Abstract:
1. Auxiliary drag mechanism at variable speed, applicable to equipment or facilities where certain components or elements have to be moved, at least during part of its path of travel, at variable speed, comprising: a variable pitch worm which is geared with connection means of the aforementioned components, when said components move along the path of travel along which they have to move at variable speed, wherein the worm is mounted between two end supports and at least one intermediate support, whose supports leave free a gearing area between the aforementioned connection means and the worm along the entire worm, and wherein the worm includes one or more consecutive tubular sections and a coaxial nucleus, wherein the one or more tubular sections have, on an end surface, sections of a worm throat consecutively fixed to the nucleus, thereby keeping continuity between corresponding throat sections; and wherein the nucleus projects, with respect to the one or more tubular sections, in sections defining a crankpin, for mounting on the two end supports.