US Patent 9969215 Frame for a creeper

A frame (10) for a creeper includes spaced side rails (11) having a generally flat top surface (12) and a generally flat bottom surface (13). Opposed arcuate surfaces (14) extend between the ends of the top (12) and bottom (13) surfaces to form a generally oval profile for the side rails (11). A plurality of caster assemblies (15, 16, 17) each include a generally flat mounting plate (36) which is positioned adjacent to, and attached to, the flat bottom surface (13) of the side rails (11). A plurality of crossrails (23, 24, 25, 26) extend between the side rails (11) and are adapted to receive a pad.