Document Type and Number:
Japanese Patent JPS5437758
Kind Code:
B2
Abstract:
A variable speed drive for moveable elements guided along a trajectory has couplings connecting the elements in pairs. The couplings are formed of deformable polygonal loops having the same constant perimeter. The loops are mounted in tension between at least three linking points are carried respectively by two successive moveable elements and at least one linking point follows a cam arranged along the trajectory. The profile of the cam is such that the moveable element move toward and away from each other in the regions of deceleration and acceleration. Some of the linking points are formed by pivotable and/or slidable members to allow free formation of the polygonal loops.
Application Number:
JP7353673A
Publication Date:
November 16, 1979
Filing Date:
June 29, 1973
Export Citation:
International Classes:
B65G21/14; B65G23/00; B66B21/12