发明名称 |
Control mechanism for lifting, lowering and swinging record player tonearm |
摘要 |
A record player tonearm A may be swung about a shaft 3 and raised and lowered by an elevation plate 8 secured to a shaft 8a. The rounded lower end of shaft 8a serves as a follower on a cam 10 rotated about a shaft 9 by a planetary gear 13 mounted on a shaft 10b eccentrically disposed on the cam with respect to the shaft 9. The planetary gear is frictionally engaged with the cam 10 whereby it initially revolves about shaft 9 to thereby rotate the cam and raise or lower the tonearm. After approximately one-half of a revolution the planetary gear comes to frictionally abut against a sector plate 18 secured to the bottom of shaft 3. This terminates the revolution, whereafter the planetary gear rotates about its shaft 10b to drive the sector plate and swing the tonearm.
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申请公布号 |
US4200295(A) |
申请公布日期 |
1980.04.29 |
申请号 |
US19780886376 |
申请日期 |
1978.03.14 |
申请人 |
PIONEER ELECTRONIC CORP |
发明人 |
IKEDO, YUJI |
分类号 |
G11B3/085;(IPC1-7):G11B17/06 |
主分类号 |
G11B3/085 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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