LIFT Russian patent published in 2007 - IPC B66B9/02 

FIELD: mechanical engineering; lifting and transporting equipment.

SUBSTANCE: invention relates to lifts with rack nuts. Proposed lift has nut made for all depth of building shaft or combination of racks and rollers with axes square to axis of rack, or projections arranged over screw line and screw connected with load platforms provided with support carriages with rollers for contacting with guide paths of nut racks with possibility of movement of screw in shaft along said nut. Lift is furnished with additional shafts with nuts made as those of main shaft and additional screws connected with load platforms with support carriages with guide paths of nut racks with possibility of movement of screw in corresponding shaft. Running wheels with drive secured on lower load platform of each screw are designed for moving along horizontal routes and getting into vertical shafts in upper and getting into vertical shafts in upper and power positions of screws. Cab is installed on upper load platform of each screw over which supporting paths are secured with cavities for fixing wheels of lower load platform of screw arranged higher in shaft. Cavities with other screws moving in shafts in the same manner are provided in shafts.

EFFECT: enlarged functional capabilities of lift.

6 dwg