Low Profile Transformable Creeper
作者： Ryan Jorgensen , Lyman Alan Thurmon , Peter Gillespie , Colin Michael Mandrick
DOI:
关键词: Lower edge 、 Frame (networking) 、 Point (geometry) 、 Record locking 、 Engineering 、 Support surface 、 Geometry 、 Control theory
摘要: One transformable creeper includes three portions. The first portion has a frame, four wheels operatively coupled to the frame such that lower edge of is maintained above lowermost point by no more than about two thirds diameter wheels, and support surface frame. second rotatably surface. A lock maintains at angles relative (generally 180°; between 90° 0° 90°). third respectively 180°,
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