LIFT (VERSIONS) Russian patent published in 2008 - IPC B66B7/06 B66B9/00 

FIELD: mechanical engineering; hoists, lifts, elevators.

SUBSTANCE: proposed lift contains cabin, counterweight, bed frame and power mechanism. Cabin is installed for travel along cabin guide rails. Counterweight is installed for travel along counterweight guide rails. Bed frame is secured on at least one of said guide rails of cabin or counterweight. Power mechanism is installed on said bed frame to set into motion member connecting said counterweight and cabin and working in tension. Opposite ends of said member working in tension are connected to end couplers extending higher than lowermost surface of said bed frame in vertical. Power mechanism contains drive pulley with group of surfaces, and said end couplers are arranged within the limits of axial distance determined by ends of drive pulley. End couplers are secured on bed frame being aligned in two rows mainly parallel to axis of rotation of power mechanism. Each of said surfaces of drive pulley is aligned in axis with corresponding pair of end couplers to pass imaginary line perpendicular to axis of rotation of drive pulley through one of surfaces of pulley and two end couplers coupled with said surface.

EFFECT: improved arrangement of lift, power mechanism, counterweight, etc, in well, prevention of entanglement and twisting of members working in tension and provision of compact design and convenience of arrangement and servicing of end couplers.

15 cl, 8 dwg