초록 ▼

A rollable sports ballast base for supporting a sports apparatus support member comprising a base member having a top and bottom surface. The bottom surface contacts a support surface such as a driveway or other playing surface. There is at least one wheel assembly, retractable from a lowered positi

A rollable sports ballast base for supporting a sports apparatus support member comprising a base member having a top and bottom surface. The bottom surface contacts a support surface such as a driveway or other playing surface. There is at least one wheel assembly, retractable from a lowered position to a raised position. The wheel assembly includes a pivoting connector coupled to the base member and a wheel bracket coupled to the pivoting connector. The wheel bracket includes an axle, at least one wheel, and a handle extending outwardly from the wheel bracket. The handle is used to pivotally rotate the wheel assembly about a transverse axis. When the handle is rotated away from the base member, the wheel assembly is placed in a lowered position whereby the wheel contacts the support surface thus separating the bottom surface of the base member from the support surface.

대표청구항 ▼

1. A sports ballast base comprising:a base member having a top surface, a bottom surface adapted to contact a support surface, a bottom recession in said bottom surface of said base member, and a hole defined through said base member extending from said bottom recession to the top surface; a displac

1. A sports ballast base comprising:a base member having a top surface, a bottom surface adapted to contact a support surface, a bottom recession in said bottom surface of said base member, and a hole defined through said base member extending from said bottom recession to the top surface; a displaceable first wheel assembly having at least one wheel for contacting the support surface, wherein said first wheel assembly is configured to be displaced from a lowered position to a raised position such that when in the raised position, the bottom surface of said base member substantially contacts the support surface and when in the lowered position said at least one wheel contacts the support surface thereby separating said base member from the support surface; and a second wheel assembly having at least one wheel for contacting the support surface and fixed in position such that said at least one wheel engages said support surface; wherein said displaceable first wheel assembly further comprises: at least one caster having a top portion attached to said base member within said bottom recession; and a retraction device having a first end and a second end, pivotally attached at said second end by a mounting bracket disposed within said hole, said second end being configured to engage the top portion of said at least one caster.