Fire escape – ladder – or scaffold – With storage device for supple escape
Patent
1997-07-22
1998-07-28
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
With storage device for supple escape
182 76, 182 84, E06C 910
Patent
active
057851476
ABSTRACT:
The subject invention relates to a type of escape ladder structural improvement (1), comprising a housing, an inside ladder, an outside ladder, an outside cover and a gear transmission; the hollow interior of the housing comprising an escape channel; the inside ladder, the outside ladder and the outside cover being respectively installed on the rear and front openings of the hollow interior in the housing; said inside ladder can swing backwards to extend itself by way of its own gravitational weight when a handle is pulled, and via the gear transmission mechanism, it in turn drives the outside cover and the outside ladder to swing forwards to extend themselves, so that the escapee will be able to climb the inside ladder, to the hollow interior of the housing, then to the outside ladder, and escape from the scene by means of the escape device on the outside cover; said mechanism will enable easy operation to create a best escape channel without causing bad effects on the appearance of a building.
REFERENCES:
patent: 260627 (1882-07-01), Townsend
patent: 4222458 (1980-09-01), Pratt
patent: 5022491 (1991-06-01), Gill
patent: 5303799 (1994-04-01), Tsai
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