发明名称 Turntable assembly for phonograph records
摘要 A phonograph record turntable assembly comprises a rotatable turntable having a rubber or other elastically flexible sheet overlying a substantial portion of its upper surface and secured thereto at least along an edge or edges of the sheet for defining at least one sealed interior space which contains a fluid material, preferably in the form of a viscous liquid, so as to provide a cushioned, vibration-damping record supporting surface which conforms to the shape of a warped or otherwise distorted phonograph record placed thereon. In order to avoid the accumulation of the liquid at any one portion of the interior space when the turntable is not horizontally disposed, such interior space may be divided into a plurality of liquid-containing compartments which are isolated from each other, as by partitions therebetween, and/or each interior space or compartment may further contain absorbent material which takes up the viscous liquid. The vibration-damping properties of the turntable assembly may be enhanced by providing solid particles which float in the viscous liquid.
申请公布号 US4079946(A) 申请公布日期 1978.03.21
申请号 US19750567052 申请日期 1975.04.11
申请人 SONY CORPORATION 发明人 HARA, HIDEO;KAWASHIMA, ISAO
分类号 G11B17/32;G11B19/20;(IPC1-7):G11B3/60;F16F15/04 主分类号 G11B17/32
代理机构 代理人
主权项
地址