| 摘要 |
PURPOSE:To provide a rubber block for a vibration-proof coupling having compatibility with a convertional rubber block, and having a large pressure load capacity. CONSTITUTION:Plural recessed space parts are formed at an inner diameter part of a drive ring, and rectangular protruding parts of the same number as that of the recessed space parts at the driver ring inner diameter part are provided at an outer diameter part of a driven spider. A rubber block 5 for power transmission comprises a rubber block engaged with the protruding parts to be combined with the drive ring. A center position of an arc of a radius R1 of an arc-like gap G provided at each of four corner parts of a rectangular hole for engaging the protrusion in the rubber block 5 is set to be between an end surface and a chamfer size of the driven spider protrusion for the width of the rubber block 5, and at R1/2-R1 on the inner side from an end surface for the thickness. |
