JPH01119974A - Disk cartridge and its installation method - Google Patents

Disk cartridge and its installation method

Info

Publication number
JPH01119974A
JPH01119974A JP62278115A JP27811587A JPH01119974A JP H01119974 A JPH01119974 A JP H01119974A JP 62278115 A JP62278115 A JP 62278115A JP 27811587 A JP27811587 A JP 27811587A JP H01119974 A JPH01119974 A JP H01119974A
Authority
JP
Japan
Prior art keywords
case member
disk
disk cartridge
upper case
protrusion
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
JP62278115A
Other languages
Japanese (ja)
Inventor
Ritsu Takeda
立 武田
Minoru Saito
実 齋藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP62278115A priority Critical patent/JPH01119974A/en
Publication of JPH01119974A publication Critical patent/JPH01119974A/en
Pending legal-status Critical Current

Links

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  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To prevent the occurrence of scars and dust in a disk by constituting the title cartridge by means of an upper side case member having a protrusion in a center part and a lower side case member having the disk having the hub which is brought into contact with the protrusion of the upper side case member and a bank like boss on the periphery of a turn table insertion hole. CONSTITUTION:The cartridge consists of the upper side case member 11 having the protrusion 15 in the center part, the disk 13 having the hub 14 which is brought into contact with the protrusion 15 of the upper side case ember 11, and the lower side case member 12 having the bank like boss 16 on the periphery of the insertion hole of the turn table. Here, it is desirable to make the shape of the protrusion 15 in the upper side case member 11 to be a truncated cone or a sphere. Since the bank like boss 16 in the lower side case member 12 holds the disk 13 and the protrusion 15 in the upper side case member 11 puts pressure on the hub 14 fixed to the disk 13, gutter in the directions of a radius and the thrust of the disk 13 are regulated. Thus, the occurrence of the scars and dust in the recording medium of the disk can be prevented.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、光デイスク装置等の可換媒体型記憶装置に関
するものであり、特にディスクカートリジおよびその装
着方法に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a removable media type storage device such as an optical disk device, and more particularly to a disk cartridge and a method for mounting the same.

〔従来の技術〕[Conventional technology]

従来、ディスクカートリジは記録膜を形成したディスク
を上側ケース部材と下側ケース部材との間に回転自在に
挟み込んだ構造となっていた。さらに、下側ケース部材
にはスピンドル軸とターンテーブルがディスクのハブと
接合できるターンテーブル挿入穴である開口部が形成さ
れていた。
Conventionally, a disk cartridge has a structure in which a disk on which a recording film is formed is rotatably sandwiched between an upper case member and a lower case member. Furthermore, an opening was formed in the lower case member as a turntable insertion hole through which the spindle shaft and turntable could be connected to the hub of the disk.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

このような従来のディスクカートリジでは、単独で持ち
運ぶ場合にケース内部でディスクのガタ・あそびが避け
られず、記録膜の保護、塵埃の防止の観点から問題があ
った。
In such conventional disk cartridges, when carried alone, the disk inevitably rattles and plays inside the case, which poses problems in terms of protecting the recording film and preventing dust.

そこで、本発明は前記の問題点を解決するために、ディ
スクカートリジを単独で持ち運ぶ場合にディスクをケー
ス内部で固定し、ディスクのガタ・あそびを防止して、
ディスクの記録膜に傷・塵埃によるエラーの発生を未然
に防止しようとするものである。
Therefore, in order to solve the above-mentioned problems, the present invention fixes the disk inside the case when carrying the disk cartridge alone to prevent the disk from rattling or playing.
This is intended to prevent errors from occurring due to scratches or dust on the recording film of the disc.

〔問題点を解決するための手段〕[Means for solving problems]

中心部に突起を有する上側ケース部材と、前記上側ケー
ス部材の突起に接触する凹部を形成したハブを有するデ
ィスクと、ターンテーブル挿入穴の周囲に土手状ボスを
有する下側ケース部材とからなる。ここで、前記上側ケ
ース部材の突起の形状が円錐台形あるいは球形の一部で
あることが好ましく、また前記上側ケース部材にダイヤ
フラムが形成されていることが好ましい。
It consists of an upper case member having a protrusion in the center, a disk having a hub with a recess formed in contact with the protrusion of the upper case member, and a lower case member having a bank-like boss around the turntable insertion hole. Here, it is preferable that the protrusion of the upper case member has a shape of a truncated cone or a part of a sphere, and that a diaphragm is formed on the upper case member.

さらに、前記ディスクカートリジを媒体駆動袋”置に装
着するディスクカートリジ装着方法において、媒体駆動
装置のスピンドル軸中心部分が前記上側ケース部材の突
起に接触して前記上側ケース部材の突起およびその周辺
部分とを持ち上げた後、ターンテーブルが前記ディスク
を持ち上げ、前記ディスクを前記上側ケース部材、前記
下側ケース部材から離して回転自在にディスクカートリ
ジが装着される。
Furthermore, in the disk cartridge mounting method in which the disk cartridge is mounted in a media drive bag holder, the center portion of the spindle shaft of the media drive device contacts the protrusion of the upper case member and the protrusion of the upper case member and the surrounding portion thereof. After lifting the disk, the turntable lifts the disk, separates the disk from the upper case member and the lower case member, and a disk cartridge is rotatably mounted.

〔作 用〕[For production]

そして、本発明は前記の手段により、下側ケース部材の
土手状ボスがディスクを保持するとともに上側ケース部
材の突起がディスクに固着しているハブを圧迫する構成
となり、ディスクの半径方向のガタを規制するとともに
スラスト方向にもガタを規制している。
According to the above-mentioned means, the present invention has a structure in which the bank-like boss of the lower case member holds the disk, and the protrusion of the upper case member presses the hub fixed to the disk, thereby preventing play in the radial direction of the disk. At the same time, it also controls backlash in the thrust direction.

さらに、ディスクカートリジを媒体駆動装置に装着する
ときには、ディスクカートリジの装着時の上下動を利用
して突起によるハブの圧迫を解除し、ディスクを回転自
在にしている。
Further, when the disk cartridge is installed in the medium drive device, the vertical movement of the disk cartridge when it is installed is used to release the pressure on the hub caused by the protrusion, thereby making the disk rotatable.

〔実施例〕〔Example〕

以下図面に示した実施例に基づいて本発明の詳細な説明
する。
The present invention will be described in detail below based on embodiments shown in the drawings.

第1図に本発明のディスクカートリジの第1の実施例を
示し、第2図に本発明のディスクカートリジ装着方法の
第1の実施例を示す。10はディスクカートリジ、11
は上側ケース部材、12は下側ケース部材、13はディ
スク媒体、14はディスク媒体13の中心にある金属ハ
ブ、15は上側ケース部材11の中央部に形成された円
錐台形ボス、16は下側ケース部材12の中央開口部に
土手状に形成されたリング状ボスである。
FIG. 1 shows a first embodiment of the disk cartridge of the present invention, and FIG. 2 shows a first embodiment of the disk cartridge mounting method of the present invention. 10 is a disk cartridge, 11
12 is an upper case member, 12 is a lower case member, 13 is a disk medium, 14 is a metal hub at the center of the disk medium 13, 15 is a truncated conical boss formed in the center of the upper case member 11, and 16 is a lower side. This is a ring-shaped boss formed in a bank shape at the central opening of the case member 12.

このようた構造になっているから、金属ハブ14は円錐
台形ボス15により上側から圧迫され、さらにディスク
媒体13がリング状ボス16により下側から支えられて
いるので、金属ハブ14に固着されたディスク媒体13
は上側ケース部材11と下側ケース部材12とによって
固定されている。そのため、ディスクの半径方向のガタ
を規制゛するとともにスラスト方向にもガタを規制して
いる。
With this structure, the metal hub 14 is pressed from above by the frustoconical boss 15, and the disk medium 13 is supported from below by the ring-shaped boss 16, so that it is fixed to the metal hub 14. Disk medium 13
is fixed by an upper case member 11 and a lower case member 12. Therefore, the play in the radial direction of the disk is restricted, and the play in the thrust direction is also restricted.

つぎに、ディスクカートリジ10を媒体駆動装置のスピ
ンドル軸21に装着する方法を示す。まず、スピンドル
軸21が円錐台形ボス15に当って上側ケース部材11
全体を突き上げて、上側ケース部材11に弾性変形を起
こして円錐台形ボス15を金属ハブ14から離すととも
にディスクカートリジ10の内部空間を拡大する。さら
に、ターンテーブル22がディスク媒体13を押上げて
、ディスク媒体13とリング状ボス16との接触を解除
する。したがって、ディスク媒体13は円錐台形ボス1
5とリング状ボス16による拘束を解かれて回転自在と
なる。
Next, a method for mounting the disk cartridge 10 on the spindle shaft 21 of the media drive device will be described. First, the spindle shaft 21 hits the frustoconical boss 15 and the upper case member 11
The whole is pushed up to cause elastic deformation in the upper case member 11, thereby separating the truncated conical boss 15 from the metal hub 14 and expanding the internal space of the disk cartridge 10. Furthermore, the turntable 22 pushes up the disk medium 13 and releases the contact between the disk medium 13 and the ring-shaped boss 16. Therefore, the disk medium 13 has a truncated conical boss 1
5 and the ring-shaped boss 16, and becomes freely rotatable.

第3図に本発明のディスクカートリジの第2の実施例を
示す。第2の実施例のディスクカートリジが第1の実施
例のディスクカートリジと異なる点は、上側ケース部材
11が凹状に形成されていることにある。このような構
造になっているから、ディスクカートリジ10を媒体駆
動装置のスピンドル軸21に装着すると、第4図に示す
ように上側ケース部材11が弾性変形し、ディスク媒体
13が回転できる隙間をディスクカートリジ10内に形
成する。本実施例では、第1の実施例に比較し、ディス
クカートリジ10を媒体駆動装置のスピンドル軸21に
装着した時の、上側ケース部材11の膨らみを回避でき
るので、ディスクカートリジ10内に無駄な空間を必要
としない効果がある。なお、組立後の上側ケース部材1
1を凹状にする与圧を得るため、上側ケース部材11全
体を予め変形するよう成型することは言うまでもない。
FIG. 3 shows a second embodiment of the disk cartridge of the present invention. The disc cartridge of the second embodiment differs from the disc cartridge of the first embodiment in that the upper case member 11 is formed in a concave shape. With this structure, when the disk cartridge 10 is attached to the spindle shaft 21 of the medium drive device, the upper case member 11 is elastically deformed as shown in FIG. It is formed in the cartridge 10. In this embodiment, compared to the first embodiment, it is possible to avoid the bulge of the upper case member 11 when the disk cartridge 10 is attached to the spindle shaft 21 of the media drive device, so that there is no wasted space inside the disk cartridge 10. It has an effect that does not require In addition, the upper case member 1 after assembly
It goes without saying that the entire upper case member 11 is molded to be deformed in advance in order to obtain pressurization that makes the upper case member 1 concave.

第5図に本発明のディスクカートリジの第3の実施例を
示す。−上側ケース部材11の中央付近にダイヤフラム
51が形成されている。そのため、第6図に示すように
ダイヤフラム51が容易に変形するので、スピンドル軸
21に加わる力を緩和・調節できる。したがって、ケー
ス全体に加わる力を適切な値に設計可能とする効果があ
る。
FIG. 5 shows a third embodiment of the disk cartridge of the present invention. - A diaphragm 51 is formed near the center of the upper case member 11. Therefore, as shown in FIG. 6, the diaphragm 51 is easily deformed, so that the force applied to the spindle shaft 21 can be relaxed and adjusted. Therefore, there is an effect that the force applied to the entire case can be designed to an appropriate value.

なお、第1の実施例及び第2の実施例、第3の実施例で
は、上側ケース部材11に設ける円錐台形ボス15の材
料として、上側ケース部材11と同一の材料を用いてい
るが、スピンドル軸21との摩擦低減のためにテフロン
、金属等の他の材料を用いて本発明の効果を高めること
もできる。
In addition, in the first embodiment, the second embodiment, and the third embodiment, the frustoconical boss 15 provided on the upper case member 11 is made of the same material as the upper case member 11, but the spindle The effects of the present invention can also be enhanced by using other materials such as Teflon or metal to reduce friction with the shaft 21.

また、同上の理由でスピンドル軸21の頂上に超硬金属
ボールを埋め込むこともできる。さらに、プラスチック
成型の容易さの観点から、上側ケース部材11に設ける
ボスは球形の一部とする形状以上説明したように、本発
明は、ディスクカートリジを使用しないときにはディス
クカートリジの内蔵ディスク媒体を固定し、媒体駆動装
置にディスクカートリジを装着時のみディスクカートリ
ジの内蔵ディスク媒体を開放することができるもので、
ディスク媒体の傷・塵埃の発生を最小限に抑えることが
できる。
Further, for the same reason as above, a cemented carbide metal ball may be embedded in the top of the spindle shaft 21. Furthermore, from the viewpoint of ease of plastic molding, the boss provided on the upper case member 11 is shaped as a part of a sphere.As explained above, the present invention fixes the built-in disk medium of the disk cartridge when the disk cartridge is not used. However, the built-in disk media of the disk cartridge can be opened only when the disk cartridge is installed in the media drive device.
Scratches and dust on the disk medium can be minimized.

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

第1図は本発明の第1の実施例に係るディスクカートリ
ジの断面図、第2図は本発明に係るディスクカートリジ
装着方法を示す断面図、第3図は本発明の第2の実施例
に係るディスクカートリジの断面図、第4図は本発明の
第2の実施例に係るディスクカートリジの装着方法を示
す断面図、第5図は本発明の第3の実施例に係るディス
クカートリジの断面図、第6図は本発明の第3の実施例
に係るディスクカートリジの装着方法を示す断面図であ
る。 10・・・ディスクカートリジ、工1・・・上側ケース
部材、12・・・下側ケース部材、13・・・ディスク
媒体、14・・・金属ハブ、15・・・円錐台形ボス、
16・・・リング状ボス、21・・・スピンドル軸、2
2・・・ターンテーブル、51・・・ダイヤフラム。 肇=2.旧
FIG. 1 is a sectional view of a disk cartridge according to a first embodiment of the present invention, FIG. 2 is a sectional view showing a disk cartridge mounting method according to the present invention, and FIG. 3 is a sectional view of a disk cartridge according to a second embodiment of the present invention. FIG. 4 is a cross-sectional view showing a method of mounting a disk cartridge according to a second embodiment of the present invention, and FIG. 5 is a cross-sectional view of a disk cartridge according to a third embodiment of the present invention. , FIG. 6 is a sectional view showing a method of mounting a disk cartridge according to a third embodiment of the present invention. DESCRIPTION OF SYMBOLS 10... Disk cartridge, Work 1... Upper case member, 12... Lower case member, 13... Disk medium, 14... Metal hub, 15... truncated conical boss,
16... Ring-shaped boss, 21... Spindle shaft, 2
2... Turntable, 51... Diaphragm. Hajime=2. old

Claims (5)

【特許請求の範囲】[Claims] (1)中心部に突起を有する上側ケース部材と、前記上
側ケース部材の突起に接触する凹部を形成したハブを有
するディスクと、ターンテーブル挿入穴の周囲に土手状
ボスを有する下側ケース部材とからなることを特徴とす
るディスクカートリジ。
(1) An upper case member having a protrusion in the center, a disk having a hub with a recess that contacts the protrusion of the upper case member, and a lower case member having a bank-like boss around the turntable insertion hole. A disk cartridge characterized by comprising:
(2)前記上側ケース部材の突起の形状が円錐台形であ
る特許請求の範囲第1項記載のディスクカートリジ。
(2) The disk cartridge according to claim 1, wherein the protrusion of the upper case member has a truncated conical shape.
(3)前記上側ケース部材の突起の形状が球形の一部で
ある特許請求の範囲第1項記載のディスクカートリジ。
(3) The disk cartridge according to claim 1, wherein the projection of the upper case member has a partially spherical shape.
(4)前記上側ケース部材にダイヤフラムが形成されて
いる特許請求の範囲第1項及び第2項、第3項記載のデ
ィスクカートリジ。
(4) The disk cartridge according to claims 1, 2, and 3, wherein a diaphragm is formed in the upper case member.
(5)中心部に突起を有する上側ケース部材と、前記上
側ケース部材の突起に接触する凹部を形成したハブを有
するディスクと、ターンテーブル挿入穴の周囲に土手状
ボスを有する下側ケース部材とからなるディスクカート
リジを媒体駆動装置に装着するディスクカートリジ装着
方法において、媒体駆動装置のスピンドル軸中心部分が
前記上側ケース部材の突起に接触して前記上側ケース部
材の突起およびその周辺部分とを持ち上げた後、ターン
テーブルが前記ディスクを持ち上げ、前記ディスクを前
記上側ケース部材、前記下側ケース部材から離して回転
自在にしたことを特徴とするディスクカートリジ装着方
法。
(5) an upper case member having a projection in the center; a disk having a hub having a recess that contacts the projection of the upper case member; and a lower case member having a bank-shaped boss around the turntable insertion hole. In the disk cartridge mounting method for mounting a disk cartridge consisting of A method for installing a disk cartridge, characterized in that the turntable then lifts up the disk and separates the disk from the upper case member and the lower case member so that it can rotate freely.
JP62278115A 1987-11-02 1987-11-02 Disk cartridge and its installation method Pending JPH01119974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62278115A JPH01119974A (en) 1987-11-02 1987-11-02 Disk cartridge and its installation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62278115A JPH01119974A (en) 1987-11-02 1987-11-02 Disk cartridge and its installation method

Publications (1)

Publication Number Publication Date
JPH01119974A true JPH01119974A (en) 1989-05-12

Family

ID=17592830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62278115A Pending JPH01119974A (en) 1987-11-02 1987-11-02 Disk cartridge and its installation method

Country Status (1)

Country Link
JP (1) JPH01119974A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03102178U (en) * 1990-02-05 1991-10-24
WO2005071682A1 (en) * 2004-01-19 2005-08-04 Koninklijke Philips Electronics N.V. Disk cartridge having centering means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03102178U (en) * 1990-02-05 1991-10-24
WO2005071682A1 (en) * 2004-01-19 2005-08-04 Koninklijke Philips Electronics N.V. Disk cartridge having centering means

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