JPS59149267U

JPS59149267U - Video disk player pickup device

Info

Publication number: JPS59149267U
Application number: JP4402583U
Authority: JP
Inventors: 木曾又　一郎
Original assignee: 三菱電機株式会社
Priority date: 1983-03-26
Filing date: 1983-03-26
Publication date: 1984-10-05
Also published as: JPH0135343Y2

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図は従来のビデオディスクプレーヤのピックアップ
装置の底平面図である。第２図は第１図の線■−■に沿
った側断面図である。第３図はこの考案の一実施例のピ
ックアップ装置の側断面図である。第４図はこの考案の
他の巣彪例のピックアップ装置の部分的側断面図である
。−第５図はこの考案の他の実施例の部分的側断面図で
ある。第６図はこの考案のさらに他の実施例の針圧コイ
ルの平面図である。第７図は第６図に示す針圧コイ　　
−ルを取付けたピックアップ装置の部分的側断面図であ
る。図において、１は外枠、５は内枠、６はサスペンション
、７はアーム、９は針、１０はピックアップ装置、１１
は永久磁石、１２は針圧コイルを示す。なお、図におい
て同一または相当する部分には同一の番号が付されてい
る。 −、ｆ　　　　　　　　１　・２幣５ＭFIG. 1 is a bottom plan view of a conventional pickup device for a video disc player. FIG. 2 is a side sectional view taken along line 1--2 in FIG. FIG. 3 is a side sectional view of a pickup device according to an embodiment of this invention. FIG. 4 is a partial side sectional view of another example of the pickup device of this invention. - FIG. 5 is a partial side sectional view of another embodiment of the invention. FIG. 6 is a plan view of a needle pressure coil according to still another embodiment of this invention. Figure 7 shows the needle pressure coil shown in Figure 6.
- FIG. 6 is a partial side sectional view of the pickup device with the handle attached. In the figure, 1 is an outer frame, 5 is an inner frame, 6 is a suspension, 7 is an arm, 9 is a needle, 10 is a pickup device, 11
indicates a permanent magnet, and 12 indicates a needle pressure coil. In addition, the same numbers are attached to the same or corresponding parts in the figures. -, f 1 ・ 2 5M

Claims

[Scope of utility model registration request]

(1) An arm with a signal detection needle attached to its tip and a permanent magnet embedded in its rear end, a suspension that supports this arm, and a suspension located above the rear end of this arm. By applying a control current to the coil, the magnetic force generated by the coil and the permanent magnet in the rear end of the arm repel or attract each other, so that the arm is centered on the suspension. - A pickup device for a video disc player in which the needle pressure at the tip of the arm is controlled, characterized in that the needle pressure coil is a thin bar-shaped coil and is arranged parallel to the rear end of the arm. A pickup device for a video disc player.

(2) The pick-up device for a video disc player according to claim 1, wherein the thin rod-shaped coil has a length that is at least twice as long as the permanent magnet.

(3) The video disc player according to claim 1 of the utility model registration, characterized in that the thin rod-shaped coils are provided with two end faces facing each other above the center of the permanent magnet. pickup device.