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    • 6. 发明授权
    • Load beam having areas of varying thickness in the spring region formed
by varying numbers of lamina
    • 负载梁具有由不同数量的层板形成的弹簧区域中具有不同厚度的区域
    • US5461525A
    • 1995-10-24
    • US49971
    • 1993-04-20
    • Mark ChristiansonBrent LienJames MahoneyDavid Ziegler
    • Mark ChristiansonBrent LienJames MahoneyDavid Ziegler
    • G11B5/48G11B5/54G11B5/55G11B21/21
    • G11B5/4886G11B5/4833G11B5/54G11B5/5521
    • A magnetic head suspension for attachment to a rigid arm comprises a spring load beam element and a flexure means joined to the distal end of the load beam element for supporting a read/write head. The spring load beam element portion is formed from material generally having a first thickness. The load beam has a central region in the spring region which has a second thickness, generally thinner than the first thickness. The second thickness may be formed by the partial or complete removal of load beam material in the central region. First thickness legs bounding the central region may be formed to be of widest width at the location proximal to the rigid section of the load beam, of medium width at the location distal to the rigid section of the load beam, and of narrowest width between the two ends of each leg, thus providing a load beam of good lateral stiffness and spring rate characteristics. Other types of areas may be formed by varying partial or complete removal of load beam material in the central region. Provision of such areas of reduced thickness in the spring region reduces the load beam spring rate, increases load beam spring natural frequency and the sway mode frequency, and provides a load beam spring area with minimum stress.
    • 用于附接到刚性臂的磁头悬架包括弹簧加载梁元件和连接到负载梁元件的远端的挠曲装置,用于支撑读/写头。 弹簧载荷梁单元部分由通常具有第一厚度的材料形成。 负载梁具有在弹簧区域中的中心区域,其具有通常比第一厚度更薄的第二厚度。 第二厚度可以通过部分地或完全地去除中心区域中的负载梁材料而形成。 围绕中心区域的第一厚度腿可以在靠近负载梁刚性部分的刚性部分的位置处形成为最宽的宽度,中间宽度在负载梁的刚性部分的远侧的位置处,并且最窄的宽度在 每个腿的两端,从而提供良好的侧向刚度和弹簧刚度特性的负载梁。 其他类型的区域可以通过改变中心区域中的负载梁材料的部分或完全去除而形成。 在弹簧区域中提供这种减小厚度的区域减小了负载梁弹簧刚度,增加了负载梁弹簧固有频率和摇摆模式频率,并且提供了具有最小应力的负载梁弹簧面积。