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    • 1. 发明授权
    • Arrangement for fastening a phonograph stylus holder to the tone arm
    • 用于将留声笔触针架固定到音臂上的装置
    • US4542494A
    • 1985-09-17
    • US435918
    • 1982-10-22
    • Jiri Janda
    • Jiri Janda
    • G11B3/42G11B3/16G11B3/31H04R1/16G11B3/02
    • H04R1/16G11B3/31
    • Arrangement for fastening a phonographs stylus holder to its tone arm. The arrangement has a plurality of pins affixed to the tone arm, and sleeves inserted in openings in the stylus holder. The sleeves are slipped onto the pins and have a frictional engagement therewith. The lower ends of the sleeves are provided with flanges which underlie opposite edge portions of the stylus holder. In one embodiment of the arrangement the passages through the sleeves are concentric with the external cylindrical surfaces of the sleeves, and in another embodiment the passages through the sleeves are eccentric with respect to the outer cylindrical surfaces of the sleeves whereby turning of the sleeves permits an angular adjustment of the stylus holder with respect to the tone arm. Indicium means may be provided on the sleeve to indicate the angular position of the sleeves relative to the stylus holder.
    • 用于将留声机触针座固定到其音臂上的安排。 该装置具有固定在色调臂上的多个销子,并且插入插入到触笔座中的开口中的套筒。 袖子滑到销上并与其摩擦接合。 套筒的下端设置有位于触笔座的相对边缘部分下方的凸缘。 在该布置的一个实施例中,穿过套筒的通道与套管的外部圆柱形表面同心,并且在另一个实施例中,穿过套筒的通道相对于套筒的外圆柱形表面是偏心的,从而套筒的转动允许 触控笔座相对于音调臂的角度调整。 指示装置可以设置在套筒上以指示套筒相对于触笔座的角位置。
    • 2. 发明授权
    • Gramophone pick-up arms
    • 留声机拾音臂
    • US4185835A
    • 1980-01-29
    • US912779
    • 1978-06-05
    • Alastair J. Robertson-Aikman
    • Alastair J. Robertson-Aikman
    • G11B3/14G11B3/16G11B3/10
    • G11B3/16
    • A gramophone pick-up arm has a balance weight arrangement which comprises a selectable number of lead laminations contained in a molded plastic box constituting a main balance weight casing which is adjustable in two directions, one direction being aligned with the axis of the arm at its pivotal and rotational bearings and the second direction being aligned with the pivotal axis of the arm. Light weight plastic spacers may be included in the box to prevent the lead laminations from moving about therewithin. The main balance weight casing carries a pair of flanking rider weights arranged laterally with respect to the length of the arm, one of the rider weights being provided with a micrometer screw adjustment whereby its position relative to the main balance weight casing can be precisely set for fine control, and the other rider weight providing coarse control and being indexable between forward and rearward limiting positions. Apart from the weights per se, all components of the balance weight arrangement are formed of precision molded glass or carbon fiber loaded plastic, as also is a bearing carrier into which the arm proper plugs, and from which the balance weight arrangement is adjustably carried, and integral with which are knife-edge bearing portions. The arm proper is a titanium tube processed in an atmosphere of nitrogen so as to develop a hard titanium nitride outer layer.
    • 留声机拾音臂具有平衡配重装置,其包括可选择数量的引线叠片,其包含在构成主平衡重壳体的模制塑料盒中,所述主平衡重壳体可在两个方向上调节,一个方向与臂的轴线对准 枢转和旋转轴承,并且第二方向与臂的枢转轴线对准。 盒子中可能包含轻质塑料垫片,以防止铅片在其间移动。 主平衡重壳体承载相对于臂的长度横向设置的一对侧翼骑手重量,其中一个骑手重量具有千分尺螺丝调节,由此其相对于主平衡重壳体的位置可精确地设定为 精细控制,另一个骑手重量提供粗略控制,并且可以在前后限制位置之间进行转位。 除了重量本身之外,平衡配重装置的所有部件均由精密模制玻璃或碳纤维装载的塑料形成,并且臂本身也可插入其中并由平衡重装置可调节承载的承载载体, 并且与刀沿轴承部分成一体。 臂本体是在氮气气氛中加工的钛管,以形成硬的氮化钛外层。