发明授权
US3873783A Universal stylus arm pivot coupling 失效
通用的STYLUS ARM PIVOT COUPLING

  • 专利标题: Universal stylus arm pivot coupling
  • 专利标题(中): 通用的STYLUS ARM PIVOT COUPLING
  • 申请号: US45583274
    申请日: 1974-03-28
  • 公开(公告)号: US3873783A
    公开(公告)日: 1975-03-25
  • 发明人: LEEDOM MARVIN ALLAN
  • 申请人: RCA CORP
  • 专利权人: RCA Corp
  • 当前专利权人: RCA Corp
  • 优先权: US45583274 1974-03-28
  • 主分类号: G11B9/00
  • IPC分类号: G11B9/00 G11B3/00 G11B3/20
Universal stylus arm pivot coupling
摘要:
In a video disc playback system including a motorboard, a turntable, an information disc, a stylus, a stylus arm, and a stylus arm carrying structure, a universal stylus arm pivot coupling is provided for coupling the stylus arm to the carrying structure. The coupling comprises a generally horseshoe-shaped stylus arm holder affixed to the stylus arm. A plug, having a tapered end with a substantially circular cross-section, is fastened to the first leg of the arm holder. A support member, also generally horseshoe-shaped, is attached to the carrying structure. An opening, having dimensions permitting only a partial entry of and presenting complementary bearing surfaces for smooth engagement with the plug, is disposed in the first leg of the support member. A spring is connected between the second legs of, respectively, the arm holder and the support member. The spring member persistently urges the plug into the opening and provides tracking pressure between the stylus and the disc during playback.
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