JPS6258062B2 - - Google Patents
Info
- Publication number
- JPS6258062B2 JPS6258062B2 JP57222002A JP22200282A JPS6258062B2 JP S6258062 B2 JPS6258062 B2 JP S6258062B2 JP 57222002 A JP57222002 A JP 57222002A JP 22200282 A JP22200282 A JP 22200282A JP S6258062 B2 JPS6258062 B2 JP S6258062B2
- Authority
- JP
- Japan
- Prior art keywords
- holder
- magnet
- pin
- clamper
- disk
- 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.)
- Expired
Links
- 239000000696 magnetic material Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/022—Positioning or locking of single discs
- G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
- G11B17/0284—Positioning or locking of single discs of discs rotating during transducing operation by clampers
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、ビデオデイスクプレーヤなどにおい
てデイスクをターンテーブル上に保持するための
デイスク保持機構の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an improvement in a disc holding mechanism for holding a disc on a turntable in a video disc player or the like.
第１図は従来のデイスク保持機構の側断面図で
あり、第２図は第１図の要部における磁力線の流
れを示すための側断面図である。これらの図にお
いて、１はデイスク、２はターンテーブル、３は
ハブ、４は鉄板、５はクランパ、６はマグネツト
ホルダ、７は磁石、８は中央穴部、９はピン、１
０はその先端部、である。
FIG. 1 is a side sectional view of a conventional disk holding mechanism, and FIG. 2 is a side sectional view showing the flow of magnetic lines of force in the main part of FIG. 1. In these figures, 1 is a disk, 2 is a turntable, 3 is a hub, 4 is an iron plate, 5 is a clamper, 6 is a magnetic holder, 7 is a magnet, 8 is a central hole, 9 is a pin, 1
0 is its tip.
第１図、第２図を参照する。デイスク１をター
ンテーブル２に乗せると、デイスクはハブ３によ
りセンタを位置決めされる。その上から、中央に
鉄板４を有するクランパ５を乗せると、ターンテ
ーブル２に一体的に取付けられたマグネツトホル
ダ６上の磁石７により、クランパの鉄板４が吸引
され、クランパ５は中央の穴８をピン９によりガ
イドされ、デイスク上に位置決めされる。このと
きの磁石７と鉄板４の吸引力で、クランパ５の外
周において、デイスク１をターンテーブル２に押
しつける。 Please refer to FIGS. 1 and 2. When the disk 1 is placed on the turntable 2, the center of the disk is positioned by the hub 3. When the clamper 5 having the iron plate 4 in the center is placed on top of it, the iron plate 4 of the clamper is attracted by the magnet 7 on the magnet holder 6 integrally attached to the turntable 2, and the clamper 5 is placed in the hole in the center. 8 is guided by a pin 9 and positioned on the disk. At this time, the attractive force of the magnet 7 and the iron plate 4 presses the disk 1 against the turntable 2 on the outer periphery of the clamper 5.
磁石７は上下とも磁極面は単極に着磁されてお
り、第２図に示すような磁力線を生ずる。マグネ
ツトホルダ６は磁石７の吸引力を強めるため磁性
体を使用する。ピン９の先端部１０は、クランパ
の鉄板４が吸着しないようにするため着磁しない
材質にする必要がある。従つて、先端部を非磁性
体の別部品としなければならず。コスト高、工数
増加を招く。 Both the upper and lower magnetic pole faces of the magnet 7 are magnetized to have a single pole, producing lines of magnetic force as shown in FIG. The magnet holder 6 uses a magnetic material to strengthen the attractive force of the magnet 7. The tip 10 of the pin 9 must be made of a non-magnetized material to prevent the iron plate 4 of the clamper from being attracted. Therefore, the tip must be a separate part made of non-magnetic material. This results in higher costs and increased man-hours.
本発明は、上述の如き従来技術の欠点を除去す
るためになされたものであり、従つて本発明の目
的は、ピンとマグネツトホルダを別部品で構成し
なくても所期の性能が得られるようにしたデイス
ク保持機構を提供することにある。
The present invention was made in order to eliminate the drawbacks of the prior art as described above, and an object of the present invention is to obtain the desired performance without configuring the pin and the magnetic holder as separate parts. An object of the present invention is to provide a disk holding mechanism.
上記目的を達成するため、本発明においては磁
石の磁極面を複数極に着磁し、マグネツトホルダ
とピンを磁性材料による一体形状の部品とした。
In order to achieve the above object, in the present invention, the magnetic pole surface of the magnet is magnetized into a plurality of poles, and the magnet holder and pin are made into an integral part made of a magnetic material.
次に図を参照して本発明の一実施例を説明す
る。第３図イは本発明の一実施例の要部を示す平
面図、第３図ロは同側断面図、である。これらの
図において、１１は磁石、１２はホルダ、１３は
ホルダ底面部、１４はホルダ先端部、である。
Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 3A is a plan view showing the essential parts of an embodiment of the present invention, and FIG. 3B is a sectional view of the same side. In these figures, 11 is a magnet, 12 is a holder, 13 is a holder bottom, and 14 is a holder tip.
第３図を参照する。同図においては、磁石１１
の磁極面を上下とも偶数極に着磁する。第３図で
は２極に着磁した様子を示す。この磁石１１を磁
性体材料からなるホルダ１２に取付けると同図の
如く磁力線が通る。即ち、大部分は、ホルダ底面
部１３を通り、ホルダ先端部１４にはほとんど磁
力線が走らないため、ホルダ先端部は磁化されな
い。従つて、ホルダ１２をその先端部１４を含め
て磁性体よりなる一体形状品とすることができ、
部品原価、組立工数とも低減される。 See Figure 3. In the figure, magnet 11
Magnetize the upper and lower magnetic pole faces to even-numbered poles. FIG. 3 shows a state in which the magnet is magnetized into two poles. When this magnet 11 is attached to a holder 12 made of a magnetic material, lines of magnetic force pass through it as shown in the figure. That is, most of the lines of magnetic force pass through the holder bottom surface 13 and almost no lines of magnetic force run through the holder tip 14, so the holder tip is not magnetized. Therefore, the holder 12, including its tip 14, can be made into an integral product made of a magnetic material.
Both parts costs and assembly man-hours are reduced.
本発明によれば、デイスク保持機構においてマ
グネツトホルダの一体成形が可能となり、部品原
価、組立工数の低減が図れる。
According to the present invention, it is possible to integrally mold the magnetic holder in the disk holding mechanism, thereby reducing the cost of parts and the number of assembly steps.
第１図は従来のデイスク保持機構の側断面図、
第２図は第１図の要部における磁力線の流れを示
すための側断面図、第３図イは本発明の一実施例
の要部を示す平面図、第３図ロは同側断面図、で
ある。
符号説明、１……デイスク、２……ターンテー
ブル、３……ハブ、４……鉄板、５……クラン
パ、６……マグネツトホルダ、７……磁石、８…
…中央穴部、９……ピン、１０……先端部、１１
……磁石、１２……ホルダ、１３……ホルダ底面
部、１４……ホルダ先端部。
Figure 1 is a side sectional view of a conventional disk holding mechanism.
Figure 2 is a side sectional view showing the flow of magnetic lines of force in the main part of Figure 1, Figure 3 A is a plan view showing the main part of an embodiment of the present invention, and Figure 3 B is a side sectional view of the same side. , is. Explanation of symbols, 1...Disk, 2...Turntable, 3...Hub, 4...Iron plate, 5...Clamper, 6...Magnetic holder, 7...Magnet, 8...
...Central hole, 9...Pin, 10...Tip, 11
... Magnet, 12 ... Holder, 13 ... Holder bottom, 14 ... Holder tip.
Claims (1)
ーブルの中央部にあつて前記デイスクの中央孔に
嵌合し、該デイスクの位置決めを行うハブと、該
ハブの内側に配置されその中心部にピンを植え立
てられたほゞ環状のマグネツトホルダと、該ホル
ダ上に固定された磁石と前記ピンをガイドとして
ハブを含むデイスク面に嵌脱自在で、かつ、その
中央部に磁性体を有するクランパとから成り、前
記磁石と前記クランパの磁性体との間の吸引力に
よりクランパを介してデイスクをターンテーブル
に固定するデイスク保持機構において、前記磁石
の磁極面を複数極に着磁し、前記マグネツトホル
ダとピンを磁性材料による一体形状の部品とした
ことを特徴とするデイスク保持機構。1. A turntable on which a disc is placed, a hub located at the center of the table that fits into the center hole of the disc and positions the disc, and a pin located inside the hub and fitted with a pin in the center thereof. A nearly annular magnet holder that has been planted, a clamper that can be freely fitted and removed from the disk surface including the hub using the magnet fixed on the holder and the pin as a guide, and that has a magnetic material in its center. In a disk holding mechanism that fixes a disk to a turntable via a clamper by an attractive force between the magnet and a magnetic body of the clamper, the magnetic pole surface of the magnet is magnetized into a plurality of poles, A disk holding mechanism characterized in that the holder and pin are integral parts made of magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57222002A JPS59112474A (en) | 1982-12-20 | 1982-12-20 | Disk holding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57222002A JPS59112474A (en) | 1982-12-20 | 1982-12-20 | Disk holding mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59112474A JPS59112474A (en) | 1984-06-28 |
| JPS6258062B2 true JPS6258062B2 (en) | 1987-12-03 |
Family
ID=16775549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57222002A Granted JPS59112474A (en) | 1982-12-20 | 1982-12-20 | Disk holding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59112474A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01115176A (en) * | 1987-10-28 | 1989-05-08 | Mitsubishi Petrochem Co Ltd | Manufacture of continuous length film-like piezoelectric element |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5629910A (en) * | 1994-10-11 | 1997-05-13 | International Business Machines Corporation | Optical disk library including optical disk media with non-standard thin hubs and disk drive spindle adaptor |
-
1982
- 1982-12-20 JP JP57222002A patent/JPS59112474A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01115176A (en) * | 1987-10-28 | 1989-05-08 | Mitsubishi Petrochem Co Ltd | Manufacture of continuous length film-like piezoelectric element |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59112474A (en) | 1984-06-28 |
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