JPS6423742U - - Google Patents

Info

Publication number
JPS6423742U
JPS6423742U JP11637087U JP11637087U JPS6423742U JP S6423742 U JPS6423742 U JP S6423742U JP 11637087 U JP11637087 U JP 11637087U JP 11637087 U JP11637087 U JP 11637087U JP S6423742 U JPS6423742 U JP S6423742U
Authority
JP
Japan
Prior art keywords
disk
attracting
magnetically
magnetic attraction
turntable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11637087U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP11637087U priority Critical patent/JPS6423742U/ja
Publication of JPS6423742U publication Critical patent/JPS6423742U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の実施例に係る磁気吸引方式
を説明する図、第２図は実施例に係るデイスクク
ランプ装置の作用を説明する平面構成図、第３図
はデイスククランプ装置の平面構成図、第４図は
従来の磁気吸引方式を説明する図である。 １…シヤーシ、２…モータ、３…駆動軸、４…
ターンテーブル、５…デイスク、６…クランパ、
７…磁気吸引部材（永久磁石）、７ａ〜７ｄ…永
久磁石ブロツク、８…磁気被吸引部材（磁性体）
、９…スペーサ。 FIG. 1 is a diagram illustrating a magnetic attraction system according to an embodiment of this invention, FIG. 2 is a plan configuration diagram illustrating the operation of a disk clamp device according to an embodiment, and FIG. 3 is a plan configuration diagram of the disk clamp device. , FIG. 4 is a diagram illustrating a conventional magnetic attraction method. 1... Chassis, 2... Motor, 3... Drive shaft, 4...
Turntable, 5...disc, 6...clamper,
7... Magnetic attraction member (permanent magnet), 7a to 7d... Permanent magnet block, 8... Magnetic attraction member (magnetic material)
, 9...Spacer.

Claims (1)

【実用新案登録請求の範囲】 １ モータにより回転駆動されるターンテーブル
上にデイスクを載置し、このデイスクを磁気的吸
引力によつて前記ターンテーブルとクランパの間
で固定するデイスク再生装置のデイスククランプ
装置において、 前記ターンテーブルまたはクランパの一方には
磁気吸引部材が固設されると共に、他方にはクラ
ンプ時に前記磁気吸引部材の吸引面と対向する磁
気被吸引部材が固設され、前記磁気吸引部材は前
記吸引面における当該吸引面に平行な磁束の分布
が前記磁気被吸引部材の形状と略一致するよう着
磁されていることを特徴とするデイスク再生装置
のデイスククランプ装置。 ２ 前記磁気吸引部材および磁気被吸引部材はリ
ング形状をなし、前記磁気吸引部材は円周方向に
少なくとも３分割されて着磁され、かつ前記吸引
面におけ当該吸引面に平行な磁束が前記円周方向
に少なくとも３ケ所で現われるように着磁されて
いることを特徴とするデイスク再生装置のデイス
ククランプ装置。 ３ 前記磁気吸引部材および磁気被吸引部材はリ
ング形状をなし、前記磁気吸引部材は前記吸引面
における当該吸引面に平行な磁束が径方向に現れ
るように着磁されていることを特徴とするデイス
ク再生装置のデイスククランプ装置。[Claims for Utility Model Registration] 1. A disk reproducing device in which a disk is placed on a turntable that is rotationally driven by a motor, and the disk is fixed between the turntable and a clamper by magnetic attraction. In the clamping device, a magnetic attraction member is fixed to one of the turntable or the clamper, and a magnetic attraction member is fixed to the other, which faces the attraction surface of the magnetic attraction member during clamping, and the magnetic attraction member is fixed to the other of the turntable or the clamper. A disk clamp device for a disk playback device, wherein the member is magnetized so that a distribution of magnetic flux parallel to the attracting surface on the attracting surface substantially matches the shape of the magnetically attracted member. 2. The magnetically attracting member and the magnetically attracted member have a ring shape, and the magnetically attracting member is divided into at least three parts in the circumferential direction and is magnetized, and the magnetic flux parallel to the attracting surface on the attracting surface is directed to the circle. A disk clamp device for a disk playback device, characterized in that the device is magnetized so that it appears at at least three locations in the circumferential direction. 3. A disk characterized in that the magnetically attracting member and the magnetically attracted member are ring-shaped, and the magnetically attracting member is magnetized so that magnetic flux parallel to the attracting surface appears in the radial direction on the attracting surface. Disc clamp device for playback equipment.
JP11637087U 1987-07-29 1987-07-29 Pending JPS6423742U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11637087U JPS6423742U (en) 1987-07-29 1987-07-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11637087U JPS6423742U (en) 1987-07-29 1987-07-29

Publications (1)

Publication Number Publication Date
JPS6423742U true JPS6423742U (en) 1989-02-08

Family

ID=31358845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11637087U Pending JPS6423742U (en) 1987-07-29 1987-07-29

Country Status (1)

Country Link
JP (1) JPS6423742U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0380557U (en) * 1989-11-30 1991-08-19
JPH03106555U (en) * 1990-02-14 1991-11-05

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58164070A (en) * 1982-03-25 1983-09-28 Toshiba Corp Reproducing device of information signal record
JPS6026663B2 (en) * 1975-11-04 1985-06-25 富士通フアナツク株式会社 Corner cut-in reduction control method
JPS60205857A (en) * 1984-03-30 1985-10-17 Toshiba Corp Disk device
JPS61230658A (en) * 1985-04-05 1986-10-14 Hitachi Ltd Disk clamping mechanism
JPS6161654B2 (en) * 1981-05-25 1986-12-26 Konishiroku Photo Ind
JPS627653B2 (en) * 1978-08-11 1987-02-18 Mitsubishi Electric Corp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026663B2 (en) * 1975-11-04 1985-06-25 富士通フアナツク株式会社 Corner cut-in reduction control method
JPS627653B2 (en) * 1978-08-11 1987-02-18 Mitsubishi Electric Corp
JPS6161654B2 (en) * 1981-05-25 1986-12-26 Konishiroku Photo Ind
JPS58164070A (en) * 1982-03-25 1983-09-28 Toshiba Corp Reproducing device of information signal record
JPS60205857A (en) * 1984-03-30 1985-10-17 Toshiba Corp Disk device
JPS61230658A (en) * 1985-04-05 1986-10-14 Hitachi Ltd Disk clamping mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0380557U (en) * 1989-11-30 1991-08-19
JPH03106555U (en) * 1990-02-14 1991-11-05

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