CASTER DEVICE FOR PIANO

摘要

PPROBLEM TO BE SOLVED: To provide a caster device for a piano for reducing the load on a floor by dispersively supporting the weight of the piano with a multitude of casters to prevent damage of the floor. PSOLUTION: The caster device is composed of a base board 1 and the three or more casters 2. A through hole 4 for detectably fitting therein a caster part 100 mounted on the lower end of the piano is formed at the central part of the base board 1. The casters 2, which are equidistantly mounted circumferentially on the lower surface of the base board 1 and which surround the through hole 4, support the caster part 100 in the state in which it is lifted above the installation surface of the casters 2. PCOPYRIGHT: (C)2006,JPO&NCIPI