发明授权
US4348755A Split tubular member for coupling a tonearm to a speaker cone
失效
用于将tonearm耦合到扬声器锥体的分离管状构件
- 专利标题： Split tubular member for coupling a tonearm to a speaker cone
- 专利标题（中）： 用于将tonearm耦合到扬声器锥体的分离管状构件
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申请号： US228034申请日： 1981-01-23
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公开(公告)号： US4348755A公开(公告)日： 1982-09-07
- 发明人: John T. Benson
- 申请人： John T. Benson
- 申请人地址： CA Hawthorne
- 专利权人： Mattel, Inc.
- 当前专利权人： Mattel, Inc.
- 当前专利权人地址： CA Hawthorne
- 主分类号： G11B3/00
- IPC分类号： G11B3/00
摘要：
The piston portion of a coupling for a mechanical phonograph is split lengthwise and joined together at a closed end by a living hinge so that the compression spring which biases the piston against the tonearm will exert a spreading force to the piston conforming it to the inside diameter of the cylinder or collar on the speaker cone, thereby achieving the close clearance required to transmit recorded sound vibrations to the speaker cone.
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