JPS58187056U

JPS58187056U - Lifter for tone arm

Info

Publication number: JPS58187056U
Application number: JP8509982U
Authority: JP
Inventors: 泰彦安藤
Original assignee: 日本コロムビア株式会社
Priority date: 1982-06-08
Filing date: 1982-06-08
Publication date: 1983-12-12

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の電子制御サーボ用トーンアームを示す動
作原理系統図、第２図は本考案のトーンアーム用リフタ
ーの平面図、第３図は第２図の側面図、第４図は第２図
のＡ−Ａ断面矢視図、第５図は本考案のトーンアーム垂
直方向回動用のリフターの要部斜視図である。図に於て、１はアーム、２はシェル、３はカウンタウェ
イト、４は垂直回動軸、５は水平回動軸、６．６′は板
状磁石、７はトーンアーム垂直駆動コイル、８は速度検
出コイル、３２はコイルホルダー、３８′は■状の透孔
、４０はピン、４１は保合部である。Fig. 1 is a diagram showing the operating principle of a conventional electronically controlled servo tone arm, Fig. 2 is a plan view of the tone arm lifter of the present invention, Fig. 3 is a side view of Fig. 2, and Fig. 4 is a diagram showing the tone arm lifter of the present invention. FIG. 2 is a sectional view taken along the line A-A in FIG. 2, and FIG. 5 is a perspective view of a main part of the lifter for vertically rotating the tone arm of the present invention. In the figure, 1 is an arm, 2 is a shell, 3 is a counterweight, 4 is a vertical rotation axis, 5 is a horizontal rotation axis, 6.6' is a plate magnet, 7 is a tone arm vertical drive coil, 8 32 is a speed detection coil, 32 is a coil holder, 38' is a square-shaped through hole, 40 is a pin, and 41 is a retaining portion.

Claims

[Scope of utility model registration request]

In the tone arm lifter, the lifter driving part having an engaging part that engages with an engaging element for vertically swinging the tone arm is slid in a direction perpendicular to the direction in which the engaging element is planted. A tone arm lifter comprising a sliding support section on a line passing through the engaging section.