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
Links
- 230000004907 flux Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Description
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)
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.
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)
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)
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 |
-
1987
- 1987-07-29 JP JP11637087U patent/JPS6423742U/ja active Pending
Patent Citations (6)
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)
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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