发明授权
US4183538A Automatic record playing apparatus 失效
自动录音机

  • 专利标题: Automatic record playing apparatus
  • 专利标题(中): 自动录音机
  • 申请号: US791595
    申请日: 1977-04-27
  • 公开(公告)号: US4183538A
    公开(公告)日: 1980-01-15
  • 发明人: Takashi Saito
  • 申请人: Takashi Saito
  • 申请人地址: JPX Yokohama
  • 专利权人: Victor Company of Japan, Ltd.
  • 当前专利权人: Victor Company of Japan, Ltd.
  • 当前专利权人地址: JPX Yokohama
  • 优先权: JPX51-54627 19760430; JPX51-54628 19760430; JPX51-54629 19760430; JPX51-54630 19760430
  • 主分类号: G11B3/085
  • IPC分类号: G11B3/085 G11B17/06
Automatic record playing apparatus
摘要:
An automatic record playing apparatus comprises a rotating member adapted to rotate together with a tone arm and having a projection thereon, a rotation driving member rotated forward and backward over a predetermined range during a predetermined operational period by a rotating force of a turntable, and a pushing means provided on the rotation driving member and adapted to push the projection to rotate the rotating member for returning the tone arm unitarily therewith toward outside of a record disc as the rotation driving member effects initial forward rotation. The pushing means having a first portion for pushing the projection in one rotational direction of the rotating member, and a second portion for pushing elastically the projection in the direction other than the rotational direction of the rotating member. The rotating member being rotated in the result, that the projection is pushed by the first portion of the pushing means in a state where unnecessary revolution thereof is obstructed by the second portion.
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