초록 ▼

A concrete form includes a horizontal base and a vertical face joined to the base. Load bearing brackets are coupled at spaced apart intervals along the exterior side of the concrete form to loosely support a detachable equipment rail from below while maintaining the upper surface of the rail parall

A concrete form includes a horizontal base and a vertical face joined to the base. Load bearing brackets are coupled at spaced apart intervals along the exterior side of the concrete form to loosely support a detachable equipment rail from below while maintaining the upper surface of the rail parallel to the form base. A rail alignment bracket includes a pair of vertically oriented, spaced apart edges or slots for receiving vertically projecting, spaced apart sides of the equipment rail and maintaining the equipment rail in a fixed position with respect to the form base. A clamping device secures a stake to the load bearing bracket to maintain the concrete form in a fixed position with respect to the subgrade.

대표청구항 ▼

A concrete form comprising: a. a horizontal base for contacting an underlying subgrade; b. a vertical face joined to said base for shaping the edge of an area of plastic concrete; c. an equipment rail having a linear load bearing upper surface, a width, first and second substantially vertical side s

A concrete form comprising: a. a horizontal base for contacting an underlying subgrade; b. a vertical face joined to said base for shaping the edge of an area of plastic concrete; c. an equipment rail having a linear load bearing upper surface, a width, first and second substantially vertical side surfaces and a lower surface; d. rail coupling means for loosely coupling said equipment rail to said form to permit immediate assembly or disassembly of the equipment rail/form assembly by substantially vertical, non-rotational relative displacements of said rail with respect to said rail coppling means, including i. horizontal spacing means contacting the first and second side surfaces of said equipment rail at at least two spaced apart first locations along said rail for maintaining a fixed horizontal spacing between said rail and said vertical form face without transferring significant vertical loads between said horizontal spacing means and said rail, said horizontal spacing means maintaining a closely abutting, loose contact with the first and second side surfaces of said equipment rail, the overlap between said equipment rail and said form base defining a rail overlap zone on said base equal in width to the rail width; and ii. load transfer means extending across the rail overlap zone and loosely supporting said equipment rail from below at at least two spaced apart second locations along the length of said rail spaced part from the first locations for maintaining the load bearing surface of said equipment rail parallel to said form base and for transferring vertical loads imposed on said equipment rail to said form base; e. form securing means for rigidly securing said form to the subgrade including i. stake penetration means for enabling a plurality of spaced apart stakes to be driven through said base into the subgrade to secure said stakes to the subgrade; and ii. stake securing means for rigidly securing said stakes to said form.