JPS6085764U

JPS6085764U - Rotation support device for disc-shaped information recording media

Info

Publication number: JPS6085764U
Application number: JP17816583U
Authority: JP
Inventors: 山崎　秀利; 田治米　紘一
Original assignee: 日本ビクター株式会社
Priority date: 1983-11-18
Filing date: 1983-11-18
Publication date: 1985-06-13

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 drawings]

第１図は従来の回転支持装置の一例を示す図、第２図は
本考案に係わる円盤状情報記録媒体の再生装置の一実施
例の主要部を示す部分切除平面図、第３図は第２図にお
いてディスク収納筐体が装置内に収納された状態を示す
部分切除側面図、第４図はディスク収納筐体を示す外観
斜視図、第５図乃至第７図は本考案になるディスクの回
転支持装置を説明するための図、第８図はディスク押圧
部及びアーム組立て体の非作動状態を第２図中Ｉ−Ｉ線
側より見た図であり、同図Ａは係止レバーの状態を示し
た平面図、同図Ｂはディスク押圧部及びアーム組立体の
状態を示した側面図、第９図はディスク収納筐体が装置
内に収納された状態を第２図中Ｉ−Ｉ線側より見た図で
あり、同図Ａは係止レバーの動作状態を示した平面図、
同図Ｂはディスク押圧部及びアーム組立体の動作状態を
示した側面図である。２・・・ディスク収納筐体、２ａ・・・ラックギヤ、７
・・・ディスク載置板、９・・・ディスク押圧部材、１
２・・・ターンテーブル部、１３・・・コレット部、１
４・・・ディスク、１５・・・支持部、１６・・・ディ
スク昇降アーム、１７．１９・・・カムピン、２０・・
・連絡アーム、２１・・・コイルばね、２４〜３２・・
・歯Ｌ３４・・・モータ、３８・・・クラッチ部、４１
・・・摺動部材、４２．４３・・・カム部、４４・・・
ラックギヤ、４５・・・カム溝、４６・・・係止レバー
、４９・・・ロックアーム、５３・・・レバー、５５−
・・カムピン、５７・・・カム部、５８，５９，６０・
・・スイッチ部、７０・・・モータ、７１・・・回転軸
（モータシャフト）、７２・・・ターンテーブル、７３
・・・ディスク案内部材、７３ａ・・・凹部、７４・・
・コイルばね、７５・・・抜は防止用のネジ、７６・・
・固定ネジ、７７・・・ベース板、７８・・・クランパ
、Ａ・・・ディスク押圧部、Ｂ・・・アーム組立体、Ｃ
・・・駆動機構、Ｄ・・・歯車群。FIG. 1 is a diagram showing an example of a conventional rotation support device, FIG. 2 is a partially cutaway plan view showing the main parts of an embodiment of a disc-shaped information recording medium reproducing device according to the present invention, and FIG. Fig. 2 is a partially cutaway side view showing the disk storage case housed in the device, Fig. 4 is an external perspective view showing the disk storage case, and Figs. 5 to 7 are views of the disk according to the present invention. FIG. 8, which is a diagram for explaining the rotation support device, is a view of the inactive state of the disk pressing part and the arm assembly as seen from the I-I line side in FIG. 2, and FIG. FIG. 9 is a plan view showing the state of the disc pressing section and arm assembly; FIG. It is a view seen from the line side, and the figure A is a plan view showing the operating state of the locking lever.
Figure B is a side view showing the operating state of the disk pressing section and arm assembly. 2... Disk storage housing, 2a... Rack gear, 7
...Disc mounting plate, 9...Disk pressing member, 1
2... Turntable part, 13... Collet part, 1
4...Disc, 15...Support part, 16...Disc lifting arm, 17.19...Cam pin, 20...
・Communication arm, 21...Coil spring, 24-32...
・Tooth L34...Motor, 38...Clutch part, 41
...Sliding member, 42.43...Cam part, 44...
Rack gear, 45... cam groove, 46... locking lever, 49... lock arm, 53... lever, 55-
...Cam pin, 57...Cam part, 58, 59, 60.
... Switch section, 70 ... Motor, 71 ... Rotating shaft (motor shaft), 72 ... Turntable, 73
...Disc guide member, 73a...Recessed portion, 74...
・Coil spring, 75... Screw to prevent removal, 76...
・Fixing screw, 77...Base plate, 78...Clamper, A...Disc pressing part, B...Arm assembly, C
... Drive mechanism, D... Gear group.

Claims

[Scope of utility model registration request]

A turntable having a substantially cylindrical body provided with a disk mounting portion on which a disk is placed and a shaft portion having a center hole, and the turntable is mounted inside the cylindrical body, and the tip fits into the center hole of the disk. a disc guide member having a tapered shape and having a concave portion extending along the entire circumference of the circumferential side thereof; An elastic member that elastically supports the disc guide member and a removal prevention member that loosely fits one end into the recess of the disc guide member and fixes the other end to the turntable to prevent the disc guide member from coming off. 1. A rotation support device for a disk-shaped information recording medium, characterized in that a turntable portion configured as an assembled product is attached and fixed to a rotation drive shaft.