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    • 4. 发明授权
    • Retaining rings for optical disc assemblies
    • 光盘组件固定环
    • US4453246A
    • 1984-06-05
    • US431853
    • 1982-09-30
    • Covington, Roger G.
    • Covington, Roger G.
    • G11B7/24G11B23/00G01D15/32G11B5/82
    • G11B23/005G11B7/24015G11B7/24097
    • An optical disc assembly includes a record layer carrying, flexible disc-shaped support with an information storage region. An annular retaining ring comprising an inner and an outer member clamps an outer peripheral portion of the support as the ring members close together. The outer peripheral portion of the support is wrapped about a radially outward facing surface of the inner ring member and a second, larger radius peripheral support portion is pushed into an annular recess in the inner ring member. Means on the retaining ring cause the portion of the support which is pushed into the recess to form a scalloped configuration within the recess. This inhibits buckling of the support. Such buckling would set up stresses in the support which would tend to be transmitted radially along the support to the information storage region.
    • 光盘组件包括具有信息存储区域的记录层携带具有柔性的盘形支撑。 环形保持环包括内部和外部构件,当环形构件靠近在一起时,夹持环形构件的外周边部分。 支撑体的外周部围绕内圈构件的径向向外的表面缠绕,并且第二较大半径的外围支撑部分被推入内圈构件中的环形凹部中。 保持环上的装置使得被推入凹部中的支撑件的部分在凹部内形成扇形构型。 这抑制了支撑件的弯曲。 这种弯曲将在支撑件中产生倾向于沿支撑件向信息存储区域径向传递的应力。