JPH0373479A - Shutter for disk and continuous production thereof - Google Patents

Shutter for disk and continuous production thereof

Info

Publication number
JPH0373479A
JPH0373479A JP21028689A JP21028689A JPH0373479A JP H0373479 A JPH0373479 A JP H0373479A JP 21028689 A JP21028689 A JP 21028689A JP 21028689 A JP21028689 A JP 21028689A JP H0373479 A JPH0373479 A JP H0373479A
Authority
JP
Japan
Prior art keywords
shutter
core material
disk
synthetic resin
coating layers
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
JP21028689A
Other languages
Japanese (ja)
Inventor
Takayuki Nakamoto
高行 中本
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.)
IWATA DENKO KK
Original Assignee
IWATA DENKO KK
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 IWATA DENKO KK filed Critical IWATA DENKO KK
Priority to JP21028689A priority Critical patent/JPH0373479A/en
Publication of JPH0373479A publication Critical patent/JPH0373479A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent the generation of the swarf harmful to a disk without damaging a heard case in spite of repetition of ten thousands of opening and closing by forming the surfaces of coating layers made of a synthetic resin having good slipperiness. CONSTITUTION:This shutter is constituted to a desired shape by consisting the shutter of a metallic core body 2 made of a metal having the coating layers 3 made of the synthetic resin having the good slipperiness. For example, the hoopshaped metallic core material 2 is formed by moving the core material in its longitudinal direction, subjecting the material to decreasing, cleaning and drying, coating the core material with the coating layers 3 made of the synthetic resin having the good slipperiness, baking the coating layers, printing and baking desired designations on the surfaces of the coating layers 3, pressing the core material and blanking the core material to a product shape during intermittent stop and subjecting the blanked shutter to degreasing and cleaning. The damaging of the hard case is obviated and the generation of the swarf harmful to the disk is obviated even if the shutter is opened and closed ten thousands of times.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は70ツピーデイスクや光デイスク用のシャッタ
およびその連続製造方法に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a shutter for a 70-tip disk or an optical disk, and a continuous manufacturing method thereof.

(従来の技術) 従来のシャッタには金属製のものとプラスデック製のも
のとがある。前者のものは帯電しに(くて静電気防正に
有効で、はこりの問題やほこりによるディスクの被害が
ない。後者のものはハードケースよりも軟かいプラスチ
ック製なので、何万崗開閉してもハードケースを傷めず
、ディスクに有害な削り粉が発生しない。
(Prior Art) Conventional shutters include those made of metal and those made of plastic deck. The former type is effective in preventing static electricity, and there is no problem of flaking or damage to the disk due to dust.The latter type is made of softer plastic than the hard case, so it can be opened and closed for tens of thousands of hours. will not damage the hard case and will not generate harmful shavings on the disc.

(発明が解決しようとする問題点) ところが両者ともに次のn題を抱えている。(Problem to be solved by the invention) However, both have the following problems.

前者のものでは、R閘毎にハードケースを傷めて、微小
な削り粉がケース内部に入り込むW!j題があり、その
上、指紋が付きやすく、これが汚れて見えて商品iI嬢
を下げている。
In the former case, each R lock damages the hard case and allows minute shavings to get inside the case. It has a problem with the product, and it also attracts fingerprints easily, which makes it look dirty, which makes it a bad product.

又、後者のものでは、帯電しやづ(て、はC二りやチリ
が付着してディスクに有害であると共に肉薄で柔軟性が
高いから、使用時に50〜60度に加温されたwAに熱
変形して開閉がスムーズにいかなくなるということがあ
る。
In addition, the latter is not only harmful to the disk as it is charged with static electricity and dust and dust adheres to it, but also is thin and highly flexible, so it should not be heated to a temperature of 50 to 60 degrees during use. It may become deformed due to heat and may not open and close smoothly.

このように、従来品はいずれも一長−・短があって、改
善を望まれている。
As described above, all conventional products have advantages and disadvantages, and improvements are desired.

本発明はこのような事情に鑑みてなされたもので、熱変
形および削り粉そして指紋の各I2!lI!lを一挙に
解決して、実用上極めて有用であるディスク用シャッタ
およびその連tik製造方法を提供することを目的とす
る。
The present invention was made in view of the above circumstances, and is designed to prevent thermal deformation, shavings, and fingerprints. lI! It is an object of the present invention to provide a disc shutter and a method for manufacturing the shutter, which are extremely useful in practice, by solving the problems at once.

(問題点を解決するための手段) 本発明のディスク用シャッタでは、滑り性良好な合成樹
脂製の被覆層を′4ii′する合成製芯体からなる所望
形状の構成としたことを特徴とする。
(Means for Solving the Problems) The disk shutter of the present invention is characterized in that the coating layer made of synthetic resin with good slip properties is configured in a desired shape with a synthetic core body of '4ii'. .

そし〔、本発明のディスク用シャッタの連続製造方法ぐ
は、帯板状の金llE製芯材をその長手方向に移動させ
“(、 A、脱脂洗浄して乾燥ケる男−工程、 n、iflり悸良好な合成樹m製被覆層をコーティング
して焼付は形成する第二工程、 C1被覆層表面に所望の表示を印刷して焼付ける第三工
程、 D1間欠停止中にプレスして製品形状に打出す第四工程
、 [、脱脂洗浄する第五工程、 により成形することを特徴とする。
[The continuous manufacturing method of the disk shutter of the present invention involves moving the strip-shaped core material made of gold LLE in its longitudinal direction. The second step is to coat and bake a coating layer made of synthetic wood with good flickering.The third step is to print and bake the desired markings on the surface of the C1 coating layer.The product is pressed during the intermittent stop of D1. A fourth step of punching into a shape, a fifth step of degreasing and cleaning, and forming.

本発明における被覆層は滑り性の良好な合成樹脂たとえ
ばエポキシ系のものから選択する。又、被1mの厚さは
5μTrL以下であるのが望ましい。
The coating layer in the present invention is selected from synthetic resins with good slip properties, such as epoxy resins. Further, it is desirable that the thickness of the 1 m layer is 5 μTrL or less.

(実施例) 以下図面を参照して本発明の実施の−・例を詳細に説明
する。
(Example) Examples of implementation of the present invention will be described in detail below with reference to the drawings.

第1図および第2図に例示している光ディスク(A>用
のシャッタ(1)は所要の形状に形成していて、その断
面構造は厚さが0.3履のステンレス鋼製の芯板(2)
を丁ボキシ系合成樹脂製の被覆層〈3)で厚さ5μ扉に
被覆すると共にこの被覆胴(3)表面の適宜個所に表示
(4〉を形成している。
The shutter (1) for the optical disc (A>) illustrated in Figures 1 and 2 is formed into the required shape, and its cross-sectional structure is made of a stainless steel core plate with a thickness of 0.3 mm. (2)
The door is coated with a coating layer (3) made of boxy-based synthetic resin to a thickness of 5 μm, and markings (4) are formed at appropriate locations on the surface of this coating body (3).

第3図に例示しているフロッピーディスク(13)用の
シャッタ(10)は所要の形状に成形していて、その断
面構造は、*さが0.3JIlのステンレス鋼製の芯板
(20)をエポキシ系合成樹FIB製の被覆層(30)
で厚さ0,5μ扉に被覆すると共にこの被覆層(30〉
表面の適宜個所に表示〈40)を形成している。
The shutter (10) for the floppy disk (13) illustrated in Figure 3 is molded into the required shape, and its cross-sectional structure is made of a stainless steel core plate (20) with a diameter of 0.3 JIl. Covering layer (30) made of epoxy synthetic tree FIB
This coating layer (30〉
The markings (40) are formed at appropriate locations on the surface.

第4図、第5図は本発明のディスク用シャッタの連続製
造方法を実施するのに開発した装ff(C)を例ホして
いる。
FIGS. 4 and 5 show an example of a device ff(C) developed for carrying out the continuous manufacturing method of disk shutters of the present invention.

装置f(C)は0−ル状態から引出されて移動するステ
ンレス鋼製4製の芯材(50)の移動ラインに沿い、引
出しa−ル(51) 、薬液洗浄要素(52)。
The device f (C) is moved along the moving line of a core material (50) made of stainless steel that is pulled out from the zero-roll state and moved, and includes a drawer wheel (51) and a chemical cleaning element (52).

乾!I要素(53) 、コーティング要JIll (5
4) 、焼付は要素(55) 、 Eel−要素(56
ン、焼付は要素(57) 、−一群の型成形要Jl(5
8ン、薬液洗浄要素(59)を順に配設している。
Dry! I element (53), coating required JIll (5
4), Burning is element (55), Eel-element (56
element (57), - a group of mold forming requirements Jl (5
8 and a chemical cleaning element (59) are arranged in this order.

引出し0−ルク51)は芯材(50)を一定速度で置火
的に引出して各a**に送り出す。
The drawer 0-lux 51) pulls out the core material (50) at a constant speed and sends it out to each a**.

薬液洗浄要素(52)は芯材(50)の板面に付着して
いる油分等を洗浄して除去する。
The chemical cleaning element (52) cleans and removes oil and the like adhering to the plate surface of the core material (50).

乾燥要素(53)は芯材(50)の板面に残る水分を加
熱・乾燥して除去する。
The drying element (53) heats and dries the moisture remaining on the board surface of the core material (50) to remove it.

コーティング要素(54)は芯材(50)に1ボ4−シ
系の合成樹脂を塗布して被覆層(3)(30)をコーテ
ィングする。
The coating element (54) is formed by coating the core material (50) with a one-bodied synthetic resin to coat the covering layer (3) (30).

焼付は要素(55)は」−アイングされた被覆層(3)
(30)を芯材(50)に焼付けづる。
The baking element (55) is the baked coating layer (3).
(30) is baked onto the core material (50).

印g4要素(56)は印@ロール(60〉により所望の
表示(4)(40)を被覆胴(3)(30)面に印刷可
能にしている。
The mark g4 element (56) allows desired markings (4) (40) to be printed on the surface of the covering cylinder (3) (30) by means of the mark@roll (60>).

具体的には、印刷要素(56)は下位の送りロール(6
1)と、上位の印刷ロール(60〉と、この印w40−
ル(60)を回転vIwするステッピングモーター(6
2)と、同ロール(60)を送りロール(61)との間
の芯材(50)に対して接離自在なシリンダ(63)と
、ステッピングモーター(62〉およびシリンダ(63
)に短絡しているi制御回路(64)とからなっている
Specifically, the printing element (56) is connected to the lower feed roll (6
1), the upper printing roll (60>, and this mark w40-
A stepping motor (6) that rotates the motor (60)
2), a cylinder (63) that can freely move toward and away from the core material (50) between the roll (60) and the feed roll (61), a stepping motor (62>), and a cylinder (63).
) and an i control circuit (64) short-circuited to the i control circuit (64).

印11O−ル(60)は芯材(50)の板面に印刷可能
に形成している。
The mark 11O-ru (60) is formed so as to be printable on the board surface of the core material (50).

そして、制御回路(64)は芯材〈50〉の移動徴を送
りロール(61)と連絡しているエンコーダー(65)
で検出してパルスに変換し、同パルスを信号変換分配器
(66)を通じて比率設定器(6γ)およびシーケンサ
−(68)に出力する。
The control circuit (64) is connected to an encoder (65) which communicates the movement of the core material <50> with the feed roll (61).
The pulse is detected and converted into a pulse, and the pulse is outputted to the ratio setter (6γ) and the sequencer (68) through the signal converter/distributor (66).

比率設定器(67〉では入力パルスを数倍の比率にアッ
プしてサーボアンプ(69)に出力し、サーボアンプ(
69)は人力パルス数に比例した回転指令電圧をステッ
ピングモーター(62)に出力して同モーター(62)
を回転せしめると共に、同モーター(62)の実際の回
転数をパルスジェネレーター(70)で検出してフィー
ドバック用パルスに変換してQ差カウンターυ制御部(
11)に出力し、同II 8部(71)にてサーボアン
プ(69)の人力パルス数とパルスジェネレーター(1
0)からフィードバッグされたパルス数とを印刷ピッチ
の設定公差植と比較・演算して、サーボアンプ(69)
からステッピングモーター(62)に対する回転指示電
圧を増減し、印刷ロール(60)による芯材(50〉の
印刷位置を印刷ピッチ毎に設定公差内に補正しながら連
続して印刷するようにしている。
The ratio setter (67) increases the input pulse several times the ratio and outputs it to the servo amplifier (69).
69) outputs a rotation command voltage proportional to the number of human pulses to the stepping motor (62).
At the same time, the actual rotation speed of the motor (62) is detected by the pulse generator (70) and converted into feedback pulses, which are then output to the Q difference counter υ control section (
11), and in Part II 8 (71), the number of manual pulses of the servo amplifier (69) and the pulse generator (1
The number of pulses fed back from 0) is compared and calculated with the printing pitch setting tolerance, and the servo amplifier (69)
The rotation instruction voltage to the stepping motor (62) is increased or decreased from then on, and printing is performed continuously while correcting the printing position of the core material (50>) by the printing roll (60) within a set tolerance for each printing pitch.

シーケンザー(68)は分配器(66)からの入力パル
ス数とサーボアンプ(69〉を通じて出力されたステッ
ピングモーター(62)の実際の回転数に基づくパルス
数とを夫々カウンター(72)  (72)にカウント
して、双方のパルス数の間の差が印刷ピッチの設定交差
値から一定Wi以上に外れた時に、印刷ロール(60)
を芯材(50)に対して印刷可能な状態に保っているシ
リンダ(63)の電磁弁(図示せず〉を作動せしめて、
印刷ロール(60)を芯材(50〉から緊急にm動し、
以後の印刷ズレを防止するようにしている。(73)は
手動スピード設定器、(14)は手動運転パルス発生器
である。
The sequencer (68) inputs the number of input pulses from the distributor (66) and the number of pulses based on the actual rotation speed of the stepping motor (62) outputted through the servo amplifier (69) to counters (72) and (72), respectively. The printing roll (60)
activating the solenoid valve (not shown) of the cylinder (63) that maintains the printable state on the core material (50);
Urgently move the printing roll (60) from the core material (50),
This is to prevent future printing misalignment. (73) is a manual speed setting device, and (14) is a manual operation pulse generator.

焼(=Jけ要素(57)は印刷された表示(4)(40
)を被覆層(3)(30>に焼付けする。
(=J element (57) is the printed display (4) (40
) is baked onto the covering layer (3) (30>).

−群の型成形要素(58)はシャッタ形状にプレス成型
可能な各種のプレス要素からなり、芯材(50)の間欠
停止中にプレス加工して、表示(4)或いは(4G)が
所定の位置関係に納まった所要の製品形状に段階的に成
形して仕上げる。
- The molding element (58) of the group consists of various press elements that can be press-molded into a shutter shape, and is pressed during the intermittent stoppage of the core material (50) so that the display (4) or (4G) is The product is formed and finished in stages into the desired product shape that fits the positional relationship.

薬液洗浄要素(59)はプレス成形されたシャッタ(1
)<10)を洗浄して、付着している油分等を除去する
The chemical cleaning element (59) is a press-molded shutter (1
)<10) to remove attached oil, etc.

第6図は他の装置f(D)を例示しており、その構成は
前記装置(C)と、焼付GJff素(55)  (57
)を一つの焼付は要素(75)で兼用している点を除い
て同構成であるため、説明を省略する。
FIG. 6 exemplifies another device f(D), which is composed of the device (C) and the baking GJff element (55) (57
) has the same configuration except that element (75) is used for one printing, so the explanation will be omitted.

又、両i装置(C)(D)では、印刷ロール(60)に
よる印刷時に表示(4)(40)と併せてマーク(a)
を別途同時印刷し、長さ計〈76)におけるエンコーダ
ーで芯材(50)の移動速度を、光センサーで板面のマ
ーク(a)を確認して、その*桿されたマーク間の良さ
が表示されるカウンターを視認することにより、印刷ピ
ッチが設定公差値内であるか否か確認する態様もある。
Also, in both i devices (C) and (D), when printing with the printing roll (60), the mark (a) is displayed in addition to the display (4) and (40).
Separately, print simultaneously, check the moving speed of the core material (50) with the encoder of the length meter (76), and check the marks (a) on the board surface with the optical sensor, and check the quality between the *rod marks. There is also a mode in which it is confirmed whether the printing pitch is within a set tolerance value by visually checking a displayed counter.

この場合、表示(4)(40)のピッチを二重にチエツ
ク可能であり、且つ制御回路(64)側が正常に働いて
いることを再確認可能である。
In this case, it is possible to check the pitches of the displays (4) and (40) twice, and to reconfirm that the control circuit (64) is working normally.

次に、本発明のディスク用シャッタの連続製造方法につ
いて、第1図に例示した光ディスク(Δ)用のシャッタ
(1)の!Jm例を第4図の装置(C)を用い゛C説明
する。
Next, regarding the continuous manufacturing method of the disc shutter of the present invention, the shutter (1) for the optical disc (Δ) illustrated in FIG. An example of Jm will be explained using the apparatus (C) of FIG.

芯14(50)は引出しロール(51)によりロール状
態から弓1出されて間欠的に移動する。停止R間は型成
形要素(58)における各プレス要素のプレス成形時間
を考慮して設定される。
The core 14 (50) is pulled out of the rolled state by a pull-out roll (51) and moves intermittently. The stop R interval is set in consideration of the press forming time of each press element in the die forming element (58).

第一工程 薬液洗浄要素(52〉により板面を洗浄されて付着して
いる油分等を除去された後、乾燥要素(53)で板面を
乾燥される。〔第7図(I)〕第二工程 コーティング要素(54)で、清浄化された板面にエポ
キシ系合成樹脂製被覆層(3)を塗布され、焼付は要素
(55)で同被覆Fm<3’)を板面に焼付GJられる
。(第7図(■)) 第三工程 印w4要素(56)ニヨリ被all(3)に表示(4〉
を所定の印刷ピッチに等しく印刷され、焼付lf要素(
57〉で被11!I(3)に焼付けられる。(第7図(
■)) 第四工程 −群の型成形要素(58)における各プレス要素により
、その間欠停止毎に、パイロット穴を基準として形抜き
〔第7図(IVY)、箱曲げ〔第7図(Vl)、そして
製品形状に打出される。〔第7図〈■〉〕 第五工程 薬液洗浄要素(59)により洗浄されて前工程で付讐し
た油分等の一切を除去され、シャッタ〈1〉が成形され
る。
First step: After the board surface is cleaned by the chemical cleaning element (52) to remove attached oil, etc., the board surface is dried by the drying element (53). [Figure 7 (I)] The epoxy synthetic resin coating layer (3) is applied to the cleaned board surface using the two-step coating element (54), and the same coating layer (Fm<3') is baked onto the board surface using the element (55). It will be done. (Figure 7 (■)) Third process mark w4 element (56) Displayed on grinning all (3) (4>
The printed and baked lf elements (
57〉 and 11 points! Burned into I(3). (Figure 7 (
■)) Each press element in the mold forming element (58) of the fourth step group is used to perform shape cutting [Fig. 7 (IVY), box bending] with reference to the pilot hole at each intermittent stop. ), and then stamped into the product shape. [FIG. 7 (■)] In the fifth step, it is cleaned by the chemical cleaning element (59) to remove all oils and the like applied in the previous step, and the shutter <1> is formed.

これにより、芯板(2)をベースとして、滑り性良好な
合成樹脂製被覆Jjl(3)を有し、且つ表示(4〉が
所定の位置にある所望形態のシャッタ(1)を、帯板状
の芯材(50)から被覆層(3〉の]−ティング、表示
(4)の印覇そして形成形まで一員して連続成形するこ
とができる。
As a result, the shutter (1) of the desired form, which has the synthetic resin coating Jjl (3) with good slip properties and has the display (4> in a predetermined position), is attached to the strip plate using the core plate (2) as a base. It is possible to continuously mold everything from the core material (50) of the shape to the covering layer (3), the impression (4), and the forming shape.

(発明の効果) したがって本発明によれば次の利点がある。(Effect of the invention) Therefore, the present invention has the following advantages.

■ 請求項1により、表面が滑り性の良好な合成樹脂製
被覆層で形成されているため、何万回も開閉を繰返して
もハードケースを傷めることがなく、ディスクに有害な
削り粉の発生を解消することができる。
■ According to claim 1, since the surface is formed of a synthetic resin coating layer with good slipperiness, the hard case will not be damaged even after being opened and closed tens of thousands of times, and no shavings that are harmful to the disc will be generated. can be resolved.

■ 同項により、金属製の芯板がベースになっているた
め、全体として硬質性に富み、使用時にも熱変形せずに
常時良好な開閉状態を得ることができる。
■ According to the same item, since it is based on a metal core plate, it is highly rigid as a whole, and can always be opened and closed in a good condition without thermal deformation during use.

■ 同項により、指紋が付きにくくて汚れず、表面を綺
麗に保てて商品価値が高い。
■ Due to the same item, it does not attract fingerprints easily, does not get dirty, keeps the surface clean, and has high commercial value.

■ 請求項2により、帯板状の芯材から前記■〜■の特
徴、効果を有するシャッタを連続生産することができる
(2) According to the second aspect, it is possible to continuously produce shutters having the features and effects of (1) to (3) above from a strip-shaped core material.

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

第1図は本発明のディスク用シI7ツタの一例どして光
デイスク用のシャッタを示す斜視図。第2図はII−I
I線に沿える部分拡大断面図。第3図はフロッピーディ
スク用のシャッタを示す斜視図。 第4図は本発明のディスク用シレッタの連1製造方法を
実施するのに採用した装置の一例を示す概略図。第5図
は中頃要素における制御回路のブロック図、第6図は他
の装置を例示した概略図、菊7図(I)〜(Vl)は第
4図の装置により第1図のシ1フッタを製造する過程を
工程順に示した斜視図である。 図中 (1)(10)はシャッタ (2>(20)は芯板 (3)(30)は被覆層 (4)(40)は表示 〈50)は芯材 〈51)は引出しロール (52>  (59)は薬液洗浄要素 (53)は乾燥要素 (54)はコーティング要素 (55)  (57)  (75)は焼付は要素(56
)は印綱要素 (58)は型成形要素
FIG. 1 is a perspective view showing a shutter for an optical disk, which is an example of the shutter for a disk according to the present invention. Figure 2 is II-I
A partially enlarged sectional view taken along line I. FIG. 3 is a perspective view showing a shutter for a floppy disk. FIG. 4 is a schematic diagram showing an example of an apparatus adopted to carry out the method for manufacturing a series of disc shrettes of the present invention. Fig. 5 is a block diagram of the control circuit in the middle element, Fig. 6 is a schematic diagram illustrating another device, and Figs. FIG. 3 is a perspective view showing the manufacturing process in order of steps. In the figure, (1) and (10) are the shutter (2> (20) is the core plate (3), (30) is the coating layer (4), and (40) is the display (50) is the core material (51) is the drawer roll (52 > (59) is the chemical cleaning element (53) is the drying element (54) is the coating element (55) (57) (75) is the baking element (56)
) is a seal element (58) is a molded element

Claims (2)

【特許請求の範囲】[Claims] (1)滑り性良好な合成樹脂製の被覆層を有する金属製
芯体からなる所望形状のディスク用シャッタ。
(1) A disc shutter of a desired shape, which is made of a metal core having a synthetic resin coating layer with good slip properties.
(2)帯板状の金属製芯材をその長手方向に移動させて
、 A、脱脂洗浄して乾燥する第一工程、 B、滑り性良好な合成樹脂製被覆層をコーティングして
焼付け形成する第二工程、 C、被覆層表面に所望の表示を印刷して焼付ける第三工
程、 D、間欠停止中にプレスして製品形状に打出す第四工程
、 E、脱脂洗浄する第五工程、 により成形することを特徴とするディスク用シャッタの
連続製造方法。
(2) Moving the strip-shaped metal core material in its longitudinal direction, A. First step of degreasing, cleaning and drying. B. Coating and baking a synthetic resin coating layer with good slipperiness. 2nd step, C. 3rd step of printing and baking the desired display on the surface of the coating layer, D. 4th step of pressing into the product shape during intermittent stoppage, E. 5th step of degreasing and cleaning. 1. A continuous manufacturing method for a disk shutter, characterized in that the shutter is formed by molding.
JP21028689A 1989-08-14 1989-08-14 Shutter for disk and continuous production thereof Pending JPH0373479A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21028689A JPH0373479A (en) 1989-08-14 1989-08-14 Shutter for disk and continuous production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21028689A JPH0373479A (en) 1989-08-14 1989-08-14 Shutter for disk and continuous production thereof

Publications (1)

Publication Number Publication Date
JPH0373479A true JPH0373479A (en) 1991-03-28

Family

ID=16586885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21028689A Pending JPH0373479A (en) 1989-08-14 1989-08-14 Shutter for disk and continuous production thereof

Country Status (1)

Country Link
JP (1) JPH0373479A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0524824A2 (en) * 1991-07-25 1993-01-27 Sony Corporation Disk cassette shutter
US6816340B2 (en) * 2001-03-14 2004-11-09 Fuji Photo Film Co., Ltd. Disk cartridge
KR100449928B1 (en) * 1995-09-18 2004-11-26 소니 가부시끼 가이샤 Shutter for disc cartridges with integral display

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6340874B2 (en) * 1981-02-19 1988-08-12 Tokuyama Soda Kk
JPS6429268A (en) * 1987-07-27 1989-01-31 Terumo Corp Heat exchanger for blood and preparation thereof
JPH01294284A (en) * 1988-05-23 1989-11-28 Sony Corp Shutter for disk cartridge and its production

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6340874B2 (en) * 1981-02-19 1988-08-12 Tokuyama Soda Kk
JPS6429268A (en) * 1987-07-27 1989-01-31 Terumo Corp Heat exchanger for blood and preparation thereof
JPH01294284A (en) * 1988-05-23 1989-11-28 Sony Corp Shutter for disk cartridge and its production

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0524824A2 (en) * 1991-07-25 1993-01-27 Sony Corporation Disk cassette shutter
US5527606A (en) * 1991-07-25 1996-06-18 Sony Corporation Disk cassette shutter
KR100264770B1 (en) * 1991-07-25 2000-09-01 이데이 노부유끼 Disk cassette shutter
KR100449928B1 (en) * 1995-09-18 2004-11-26 소니 가부시끼 가이샤 Shutter for disc cartridges with integral display
US6816340B2 (en) * 2001-03-14 2004-11-09 Fuji Photo Film Co., Ltd. Disk cartridge

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