主权项 |
1. A wheel chock comprising:
an elongated U-shaped member defining a vertical height, said U-shaped member defining an elongated aperture, a lag assembly, said lag assembly contained within said aperture, a pair of opposing downwardly depending flanges, each of said pair of flanges attached to opposite sides of said U-shaped member and extending outwardly at an acute angle therefrom, and each of said pair of flanges having a lateral width shorter than the vertical height of said U-shaped member such that said flanges do not contact a substrate therebeneath, forming an exterior cavity along each side of said U-shaped member, at least one outwardly-facing vertical brace, each brace being contiguous to one of said pair of flanges, said lag assembly comprising a sleeve and a bolt, said sleeve defining a bore sized to receive said bolt, said bolt positioned within said bore, whereby said bolt of said lag assembly can be inserted through said elongated aperture to removably attach said wheel chock to said substrate, and wherein said flanges and said exterior cavities permit a wheel to selectively pass over said chock when sufficient force is applied. |