B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
B66B 9/02 (2006.01) A62B 1/06 (2006.01)
Patent
CA 2089575
2089575 9203369 PCTABS00010 A lift device which is easily prefabricated, safe, free from maintenance and inspection, and installable for home-use, and finds such wide applications as escaping means in an emergency and a simple portable footstool. This device comprises a strap-like rail wound in a screw shape and shielded bearings arranged so as to be fitted to the strap-like rail, said rail and said shielded bearings being mounted on and fitted to either the inner periphery of a longer cylinder forming an outer shell or the outer periphery of an inner shorter cylinder telescopically provided with a proper space from the inner periphery of the longer cylinder, said shorter cylinder being mounted thereon with a lift cage through thrust bearings, and said lift cage being locked against rotation and provided thereon with a motor transmittingly rotating the shorter cylinder to thereby effect lifting, and further, relates to a lift device wherein the above-described lift devices are combined in multiple-telescopic structure, thereby allowing cylinders to project telescopically for lifting operation. This lift device comprises a strap-like rail and bearings screw-fitted to the strap-like rail, and is unique in social contribution, etc., in terms of safety, maintainability, modularity and the wide applications.
Swabey Ogilvy Renault
Tatumi Sigezou
LandOfFree
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