Eccentric drive mechanism - has rope with one end attached to holder which is steplessly adjustable along track and has other end attached to return mechanism

摘要

The rope (2) is attached at one end (C) to a holder (4) adjustable steplessly along a track, so as to vary movement amplitude and thus the rocking angle. Its other end (A) is held under tension by a return mechanism (3). The holder can be adjustable by a spindle with hand crank (13), and can travel along a straight track sloping upwards from the position at which amplitude is at the maximum. Alternatively, the track can be curved, and the return mechanism can be formed by a tension spring. USE/ADVANTAGE - For converting a turning movement into a pivot and traction movement. Provides for simplicity and low cost.