JPH01133343U

JPH01133343U -

Info

Publication number: JPH01133343U
Application number: JP2878688U
Authority: JP
Priority date: 1988-03-04
Filing date: 1988-03-04
Publication date: 1989-09-11

Description

[Brief explanation of the drawing]

第１図は本考案に係るデイスクプレーヤの内部
構造の平面図、第２図及び第３図は第１図に関す
る各々―断面図及び―断面図、第４図は
第３図に関する―矢視図、第５図ないし第７
図ｃは第１図に示した内部構造の一部詳細図、第
８図は当該デイスクプレーヤの全体斜視図、第９
図ａ及びｂはカートリツジの平面図及び側面図、
第１０図は当該デイスクプレーヤの制御系のブロ
ツク図、第１１図ないし第１３図は当該デイスク
プレーヤの動作を説明するための図である。主要部分の符号の説明、５，６……支持レール
、７……ピツクアツプ、８，９……鋼製ローラ、
１５……デイスク、１６……長手マグネツト、１
７，１８……長手ヨーク、２０……長手磁気回路
、２１……駆動コイル、２２……検出コイル、２
７……レーザダイオード、２８……コリメータレ
ンズ、２９……集光レンズ、３０……受光素子、
３１……複合プリズム、３２……非点収差素子、
５８……対物レンズ、７０……ターンテーブル、
７１……第１ラツク、７２……第２ラツク、７７
……カートリツジ、７８……プレーヤハウジング
。 FIG. 1 is a plan view of the internal structure of a disc player according to the present invention, FIGS. 2 and 3 are a sectional view and a sectional view, respectively, of FIG. 1, and FIG. 4 is a view taken in the direction of the arrows of FIG. , Figures 5 to 7
Figure c is a partial detailed view of the internal structure shown in Figure 1, Figure 8 is an overall perspective view of the disc player, and Figure 9 is a detailed view of the internal structure shown in Figure 1.
Figures a and b are a top view and a side view of the cartridge;
FIG. 10 is a block diagram of the control system of the disc player, and FIGS. 11 to 13 are diagrams for explaining the operation of the disc player. Explanation of symbols of main parts, 5, 6...Support rail, 7...Pick-up, 8, 9...Steel roller,
15...Disc, 16...Longitudinal magnet, 1
7, 18...Longitudinal yoke, 20...Longitudinal magnetic circuit, 21...Drive coil, 22...Detection coil, 2
7... Laser diode, 28... Collimator lens, 29... Condensing lens, 30... Light receiving element,
31... Composite prism, 32... Astigmatism element,
58...Objective lens, 70...Turntable,
71...1st rack, 72...2nd rack, 77
...Cart cartridge, 78...Player housing.

Claims

[Scope of utility model registration request]

A disk transport mechanism that supports and transports a disk onto the turntable, a disk clamp means that presses the disk placed on the turntable against the turntable, and a control that controls the turntable and the disk transport mechanism. means, the turntable is an autoloading disk player having a centering member that fits into a center hole of the disk to center the disk, and the control means rotates the turntable in a predetermined manner. An autoloading disk player characterized by rotating by an angle, stopping once, and then rotating.