초록 ▼

A lift or elevator for goods or passengers suitable for installation to existing low rise residential or commercial buildings. The lift comprises an upright hollow column (40) having a slot extending along the length of one face (47) thereof, a carriage (50) slidably mounted within the column on tra

A lift or elevator for goods or passengers suitable for installation to existing low rise residential or commercial buildings. The lift comprises an upright hollow column (40) having a slot extending along the length of one face (47) thereof, a carriage (50) slidably mounted within the column on tracks (48), a cantilever beam assembly (54) supporting a lift car (55) attached by brackets (52, 53) to the carriage through the slot, a hydraulic ram (60) mounted within the column beneath the carriage and a cable (66) attached to a retaining member (67) at one end, and, via a pulley (63), to the carriage at the other end for elevation thereof. An electrical control circuit, an hydraulic control circuit as well as a method of installing the lift are also disclosed.

대표청구항 ▼

An hydraulic elevator system comprising: a substantially hollow column with an elongate aperture extending lengthwise thereof; a base member for fixably supporting said column above and extending away from a ground or floor level support surface; means for securely attaching said supported column to

An hydraulic elevator system comprising: a substantially hollow column with an elongate aperture extending lengthwise thereof; a base member for fixably supporting said column above and extending away from a ground or floor level support surface; means for securely attaching said supported column to a building support or wall; a carriage assembly slidably mounted on resiliently-rotatable roller bearings within said column; a multipassenger elevator car cantilevered from said slidably-movable carriage assembly; an hydraulic ram assembly for elevating said carriage assembly, said hydraulic ram assembly being located within said substantially hollow column; an hydraulic fluid reservoir and an electrically-powered hydraulic pump for selectively operating, in response to passenger control, said hydraulic ram to elevate said elevator car, said hydraulic pump being operable on a main voltage power supply, and a passenger-operable low-voltage control circuit for controlling ascent and descent of said elevator car from within said car and from external call stations, said low-voltage control circuit having a backup low-voltage power supply and safety means responsive to an emergency failure of said main voltage supply, for activating said low-voltage control circuit by said backup power supply to selectively control descent of said elevator car in response to passenger operation from within said car and from external call stations.