| 摘要 |
PURPOSE:To improve adhesion to a record disk and oscillation absorbability, by bringing the record disk into linear or spot contact with numbers of projections provided to a main body made of rubber which has prescribed hardness and a prescribed coefficient of repulsive elasticity, and making the diameter of a center hole less than a spindle diameter. CONSTITUTION:A stabilizer body 1 is formed of a rubber material which has an extremely low hardness of <=30 deg. by an A type rubber durometer and >=15 deg. by an F type rubber durometer and a high coefficient of repulsive elasticity of >=50%. On the contacting surface of a record disk, numbers of projections 3 are provided to allow linear or spot contact with the record disk. The diameter of a center hole 2 is made less than a spindle diameter to improve adhesion to the spindle, thereby applying pressure to the record disk. Consequently, the adhesion to the record disk is improved, and oscillation absorbability is also improved. |
