초록 ▼

A central, length-delineated spine is formed by successive U shaped arms to which a pair of novel starting blocks can be attached, one on each side, and slid to such positions as desired by the runner. Each starting block is formed with a hollow open bottom side housing or box which will fit down ov

A central, length-delineated spine is formed by successive U shaped arms to which a pair of novel starting blocks can be attached, one on each side, and slid to such positions as desired by the runner. Each starting block is formed with a hollow open bottom side housing or box which will fit down over an anchorage block carried by successive U arms so as to lock the two together at a particular position along the spine. When raised free of such lockage, a starting block can be slid lengthwise due to (a) a pair of projecting lips or edge rails formed lengthwise along the starting block and along the hollow housing, and (b) composite slide rails formed by alignment of successive anchor blocks of a line of arms. Such starting blocks are easily raised and slid to new positions but cannot fall off the assembly (which might injure a foot) even if the assembly is inverted.

대표청구항 ▼

A runner\s starting block assembly comprising in combination: an elongated spine, transversely U shaped with two parallel rows of spaced upstanding arms, each arm having a top anchor block forming a composite longitudinal slide track with similar anchor blocks of others of the arms, each anchor bloc

A runner\s starting block assembly comprising in combination: an elongated spine, transversely U shaped with two parallel rows of spaced upstanding arms, each arm having a top anchor block forming a composite longitudinal slide track with similar anchor blocks of others of the arms, each anchor block on said individual arms having inner and outer side faces, each face, being formed on a projecting shoulder, a runner\s starting block disposed adjacent each of said rows of upstanding arms, each starting block being formed with a laterally projecting open-bottom housing disposed for selective insertion anchorage of one of said anchor blocks therein, and said housing carrying a longitudinal lip disposed to move upwardly into engagement with one of said shoulders of said arms when the anchor block is withdrawn from anchorage position, in a relation preventing complete separation of said starting blocks from the spine while permitting each starting block to be slid lengthwise along the corresponding track when said anchor block is thus withdrawn from said housing.