作者: Thomas Edward Roberts
DOI:
关键词: Elevation (ballistics) 、 Deck 、 Engineering 、 Structural engineering 、 Tread
摘要: An expandable and contractable ramp assembly is provided for moving handicapped persons between a first elevation structure such as transport vehicle or stationary at second elevation. The comprises an attachment adapted to removably secure end of the structure, being in linear direction. provides pivotal movement arcuate direction storage when not use. pair parallel disposed scissors assemblies, assemblies moveable expanded contracted positions. A light weight tread support extends operatively connected including plurality plates plate that supports plates. In embodiment, be attached extendable from rear ambulance deck, providing assistance loading patient-bearing stretcher into ambulance, removing ambulance.