JPH0619943B2 - Method for manufacturing shadow mask structure - Google Patents
Method for manufacturing shadow mask structureInfo
- Publication number
- JPH0619943B2 JPH0619943B2 JP62252060A JP25206087A JPH0619943B2 JP H0619943 B2 JPH0619943 B2 JP H0619943B2 JP 62252060 A JP62252060 A JP 62252060A JP 25206087 A JP25206087 A JP 25206087A JP H0619943 B2 JPH0619943 B2 JP H0619943B2
- Authority
- JP
- Japan
- Prior art keywords
- shadow mask
- mask
- frame
- dimension
- platen
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
- H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、シャドウマスク構体の製造方法に関し、特に
シャドウマスク材料にアンバー材（３６％Ｎｉ−Ｆｅ合
金）等の高耐力材料を使用した場合の製造方法に関す
る。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a shadow mask structure, and particularly when a high yield strength material such as an amber material (36% Ni—Fe alloy) is used as the shadow mask material. Manufacturing method.
シャドウマスク抗体はシャドウマスクとマスクフレーム
を組合せて作られる。第２図はシャドウマスク１とマス
クフレーム４の断面図を示している。シャドウマスク１
は第２図（ａ）に示すように、円形又はスリット形の多
数の開孔を有する有孔領域２ａとその周辺の開孔の無い
無孔領域２ｂとからなる曲面部２とこの曲面部２に対し
てほぼ直角に曲げられたスカート部３からなっている。
このようなシャドウマスク１は、第２図（ｂ）に示すマ
スクフレーム４と組合わされるが、スカート部３がマス
クフレーム４の直立縁部の内側４ａになるように組合わ
される。しかし、アンバー材等の高耐力材料で作られた
シャドウマスク１はスプリングバックにより直角に曲げ
られた位置３ａ間の寸法Ｌａとスカート端部３ｂ間の寸
法Ｌｂとの関係がＬａ＜Ｌｂとなってしまい、マスクフ
レームの内径寸法ＬｃはほぼＬａ＝Ｌｃなのでシャドウ
マスク１とマスクフレーム４を組合わせるのが非常に難
しくなる。すなわち、シャドウマスク１をマスクフレー
ム４に嵌合しずらくなる。また、マスクの曲面部に局部
的な変形２ｃがあると、使用時に振動が生じ電子ビーム
が正規の蛍光体に射突せず画像の品位を低下させること
もある。Shadow mask antibodies are made by combining shadow masks and mask frames. FIG. 2 shows a sectional view of the shadow mask 1 and the mask frame 4. Shadow mask 1
As shown in FIG. 2 (a), a curved surface portion 2 including a perforated area 2a having a large number of circular or slit-shaped openings and a non-perforated area 2b having no openings around the curved surface portion 2 and the curved surface portion 2 It is composed of a skirt portion 3 which is bent at a right angle with respect to.
The shadow mask 1 as described above is combined with the mask frame 4 shown in FIG. 2B, but the skirt portion 3 is combined so as to be the inner side 4a of the upright edge portion of the mask frame 4. However, in the shadow mask 1 made of a high yield strength material such as amber material, the relationship between the dimension La between the positions 3a bent at a right angle by springback and the dimension Lb between the skirt end portions 3b is La <Lb. Since the inner diameter Lc of the mask frame is approximately La = Lc, it is very difficult to combine the shadow mask 1 and the mask frame 4. That is, it becomes difficult to fit the shadow mask 1 to the mask frame 4. Further, if the curved surface portion of the mask has a local deformation 2c, vibration may occur during use, and the electron beam may not strike a regular phosphor, resulting in deterioration of image quality.
そこで従来マスクフレームを加熱して膨張させ、シャド
ウマスクを嵌合させマスクフレームの冷却によりシャド
ウマスクのスカート部を圧縮し、マスク曲面部を良好な
球面に維持させる方法が特開昭６２−２４３３号に提案
されている。Therefore, there is a conventional method of heating and expanding the mask frame, fitting the shadow mask, cooling the mask frame to compress the skirt portion of the shadow mask, and maintaining the curved surface of the mask on a good spherical surface. Has been proposed to.
しかし、この従来の方法はマスクフレームを加熱する工
程を必要とし製作に時間がかかるという問題がある。However, this conventional method has a problem in that it requires a step of heating the mask frame and it takes time to manufacture.
本発明は、かかる従来の問題点を解決し、シャドウマス
クを変形させることなく量産性にすぐれシャドウマスク
構体の製造方法を提供することである。SUMMARY OF THE INVENTION The present invention provides a method for manufacturing a shadow mask structure, which solves the conventional problems and is excellent in mass productivity without deforming the shadow mask.
本発明のシャドウマスク構体の製造方法は、円形又はス
リット形の多数の開孔を有する有孔領域とその周辺の開
孔の無い無孔領域とからなる曲面部とこの曲面部に対し
てほぼ直角に曲げられたスカート部からなるシャドウマ
スクを形成する工程と、前記シャドウマスクを治具に保
持しマスクフレームの内側に嵌合させ固着させる工程と
を有している。A method for manufacturing a shadow mask structure according to the present invention is provided with a curved surface portion composed of a perforated region having a large number of circular or slit-shaped apertures and a non-perforated region around the periphery thereof, and substantially perpendicular to the curved surface portion. The method includes a step of forming a shadow mask composed of a skirt portion bent into a line, and a step of holding the shadow mask in a jig and fitting and fixing the shadow mask inside a mask frame.
次に本発明を図面を参照して説明する。第１図（ａ）〜
（ｈ）は本発明のシャドウマスク構体の組立方法を説明
するための断面図である。まず、第１図（ａ）に示すよ
うに成形したシャドウマスク１を外側寸法が第２図
（ａ）に示すシャドウマスク１の直角に折曲げられた位
置３ａの間の寸法Ｌａにほぼ等しいオスプラテン５にセ
ットする。次に第１図（ｂ）のようにシャドウマスク１
の曲面部を外側寸法がＬａにほぼ等しいメスプラテン６
で押える。シャドウマスク曲面部を押えた状態で第１図
（ｃ）のように直角に曲げられた位置間の寸法Ｌａと同
寸法のマスクチャック７をスカート端部の位置まで下降
する。シャドウマスク１をマスクチャック７でチャッキ
ングした状態で上昇させ、第１図（ｄ）のようにオスプ
ラテン５をはずす。この時シャドウマスク１はスカート
端部間の寸法Ｌｂと直角に曲げられた位置間の寸法Ｌａ
との差分のスプリング耐力により充分にチャッキングさ
れる。次に第１図（ｅ）に示すようにマスクフレーム４
をフレームガイド８にセットする。第１図（ｆ）のよう
にマスクチャック７にチャックされたシャドウマスクを
下降させる。第１図（ｇ）のようにメスプラテン６をさ
らに下降させてシャドウマスク１をマスクフレーム４に
嵌合する。最後に第１図（ｎ）に示すようにマスクチャ
ック７とメスプラテン６が上昇しシャドウマスク１とマ
スクフレーム４との組立品を取出す。Next, the present invention will be described with reference to the drawings. 1 (a)-
(H) is sectional drawing for demonstrating the assembling method of the shadow mask structure of this invention. First, the shadow mask 1 molded as shown in FIG. 1 (a) has a male platen whose outer dimension is approximately equal to the dimension La between the positions 3a of the shadow mask 1 shown in FIG. 2 (a) which are bent at right angles. Set to 5. Next, as shown in FIG. 1B, the shadow mask 1
The curved surface of the female platen 6 whose outer dimension is approximately equal to La
Hold down. With the shadow mask curved surface portion held down, the mask chuck 7 having the same dimension as the dimension La between the positions bent at right angles as shown in FIG. 1C is lowered to the position of the skirt end. The shadow mask 1 is lifted while being chucked by the mask chuck 7, and the male platen 5 is removed as shown in FIG. 1 (d). At this time, the shadow mask 1 has a dimension Lb between the ends of the skirt and a dimension La between positions bent at a right angle.
It is sufficiently chucked due to the spring proof strength of the difference between and. Next, as shown in FIG. 1 (e), the mask frame 4
Is set on the frame guide 8. As shown in FIG. 1 (f), the shadow mask chucked by the mask chuck 7 is lowered. As shown in FIG. 1 (g), the female platen 6 is further lowered to fit the shadow mask 1 into the mask frame 4. Finally, as shown in FIG. 1 (n), the mask chuck 7 and the female platen 6 are raised and the assembly of the shadow mask 1 and the mask frame 4 is taken out.
このように、シャドウマスクを変形を生じせしめること
なくマスクフレームに容易に組合せできる。In this way, the shadow mask can be easily combined with the mask frame without causing deformation.
以上説明したように、本発明によればシャドウマスクス
カート部が直角に曲げられた状態の外径とマスクフレー
ム内径を等しく嵌合することにより、スカート部を介し
てシャドウマスク曲面部に常に応力を加えるような構造
となり曲面部の張りが強くなり、振動に強い品位の良好
なシャドウマスク構体を容易に得ることができる。ま
た、本発明ではマスクチャックへのシャドウマスクの挿
入から最終目的のフレーム内へのシャドウマスク挿入ま
でをすべで自動挿入にしたので、従来はシャドウマスク
とフレームの組合わせ中によく生じたシャドウマスクの
変形をほとんど無くすことができる。更に本発明では、
組成作業中にシャドウマスクの内面は常に下向きに設定
しているので、微小な降下塵埃がシャドウマスク内面に
溜り後工程で不良原因となるということも生じない。そ
の上本発明の組立装置は構造が簡単なので精度を維持し
易く、故障も少ないという利点がある。As described above, according to the present invention, by equally fitting the outer diameter of the shadow mask skirt portion bent at a right angle and the inner diameter of the mask frame, the shadow mask curved surface portion is always stressed through the skirt portion. Since the structure is such that it is added, the tension of the curved surface portion becomes strong, and it is possible to easily obtain a good-quality shadow mask structure that is resistant to vibration. Further, in the present invention, since the insertion of the shadow mask into the mask chuck to the insertion of the shadow mask into the final target frame is all automatically inserted, conventionally, the shadow mask that often occurs during the combination of the shadow mask and the frame. The deformation of can be almost eliminated. Further in the present invention,
Since the inner surface of the shadow mask is always set downward during the composition work, it does not occur that minute dust fall is accumulated on the inner surface of the shadow mask and causes a defect in the subsequent process. In addition, the assembling apparatus of the present invention has the advantages that the accuracy is easy to maintain and the number of failures is small because the structure is simple.
第１図（ａ）〜（ｈ）は本発明の係るシャドウマスク構
体の製造方法を説明するための断面図、第２図（ａ），
（ｂ）は従来の製造方法の問題点を説明するためのシャ
ドウマスクとフレームの断面図である。 １……シャドウマスク、２……シャドウマスク曲面部、
２ａ……有孔領域、２ｂ……無孔領域、３……スカート
部、３ａ……直角に曲げられた位置、３ｂ……スカート
端部、４……マスクフレーム、４ａ……直立縁部内側、
５……オスプラテン、６……メスプラテン、７……マス
クチャック、８……フレームガイド。1 (a) to 1 (h) are cross-sectional views for explaining a method of manufacturing a shadow mask structure according to the present invention, FIG. 2 (a),
(B) is sectional drawing of a shadow mask and a frame for demonstrating the problem of the conventional manufacturing method. 1 ... Shadow mask, 2 ... Shadow mask curved surface part,
2a ... perforated region, 2b ... non-perforated region, 3 ... skirt part, 3a ... position bent at a right angle, 3b ... skirt end part, 4 ... mask frame, 4a ... inside of upright edge part ,
5 ... Male platen, 6 ... Female platen, 7 ... Mask chuck, 8 ... Frame guide.
Claims (1)
有孔領域とその周辺の開孔の無い無孔領域とからなる曲
面部とこの曲面部に対してほぼ直角に曲げられたスカー
ト部からなるシャドウマスクを形成し、前記シャドウマ
スクを治具に保持しマスクフレームの内側に嵌合させ固
着されるシャドウマスク構体の製造方法において、前記
シャドウマスクを、シャドウマスクの直角に折曲げられ
た位置間の寸法Ｌａにほぼ等しい寸法を有するオスプラ
テンにセットした後、シャドウマスクをオスプラテンの
反対側からＬａとほぼ等しい寸法を有するメスプラテン
で挟み、その状態でシャドウマスクを内側寸法がほぼＬ
ａに等しいマスクチャックに挿入し、オスプラテンを引
き抜いた後、Ｌａとほぼ等しい内側寸法を有するフレー
ムをシャドウマスクを受け入れる形でマスクチャック真
下に配置した後、メスプラテンでシャドウマスクを押す
ことによりマスクチャックからフレームにシャドウマス
クを移動させ挿入させることを特徴とするシャドウマス
ク構体の製造方法。1. A curved surface portion comprising a perforated region having a large number of circular or slit-shaped apertures and a non-perforated region around the periphery, and a skirt portion bent substantially at right angles to the curved surface portion. In the method for producing a shadow mask structure, comprising: forming a shadow mask made of, holding the shadow mask in a jig and fitting and fixing the shadow mask inside a mask frame, the shadow mask is bent at a right angle to the shadow mask. After setting on the male platen having a dimension approximately equal to the dimension La between the positions, the shadow mask is sandwiched from the opposite side of the male platen with a female platen having a dimension substantially equal to La, and in that state, the inner dimension of the shadow mask is approximately L.
After inserting into the mask chuck equal to a and pulling out the male platen, a frame having an inner dimension almost equal to La is placed right below the mask chuck so as to receive the shadow mask, and then the shadow mask is pushed by the female platen to remove it from the mask chuck. A method for manufacturing a shadow mask structure, which comprises moving and inserting a shadow mask into a frame.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62252060A JPH0619943B2 (en) | 1987-10-05 | 1987-10-05 | Method for manufacturing shadow mask structure |
| KR1019880012952A KR920001495B1 (en) | 1987-10-05 | 1988-10-05 | Method manufacturing the shadow mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62252060A JPH0619943B2 (en) | 1987-10-05 | 1987-10-05 | Method for manufacturing shadow mask structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0195438A JPH0195438A (en) | 1989-04-13 |
| JPH0619943B2 true JPH0619943B2 (en) | 1994-03-16 |
Family
ID=17232001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62252060A Expired - Fee Related JPH0619943B2 (en) | 1987-10-05 | 1987-10-05 | Method for manufacturing shadow mask structure |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0619943B2 (en) |
| KR (1) | KR920001495B1 (en) |
-
1987
- 1987-10-05 JP JP62252060A patent/JPH0619943B2/en not_active Expired - Fee Related
-
1988
- 1988-10-05 KR KR1019880012952A patent/KR920001495B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| KR890007345A (en) | 1989-06-19 |
| JPH0195438A (en) | 1989-04-13 |
| KR920001495B1 (en) | 1992-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |