| 摘要 |
<p>PURPOSE: To provide the piano rubber foot which is light and stable and used to mount a leg of a piano. CONSTITUTION: An aggregate 1 of a piano rubber foot has a slight plane part 2 provided at the center part, a linear rib 3 provided radially from the plane part, and a ring-shaped rib 4 provided at the periphery, and the piano rubber foot in which the aggregate 1 is stored has a hollow 5 containing the caster of the piano on the top and is provided with a discoid center plane part 6 provided at the position corresponding to the hollow 5 of the reverse surface center part, a ring shaped peripheral plane part 7 which is provided at the periphery and wide enough not to get turned up by the weight of the piano, and plural concentric grooves 8 which are provided between the peripheral plane part 7 and center plane part 6.</p> |
