405141 a7 B7 五、發明説明（） [發明所屬之技術範疇] 本發明係有關一種具有適合影罩之構造的陰極射線管 用影罩結構，尤有關一種可增大螢幕之有效畫面，可將影 罩容易地安裝於罩框且容易卸下結構之陰極射線管用影 罩結構。 [習知之技術] 內藏有影罩之彩色陰極射線管，其方式爲使自電子槍掃 瞄出之R、G、B電子束一邊會聚而一邊通過前述影罩之眼 孔，而於對應之R、G、B螢光體上，藉由前述電子束之分 別之著屛而具現出所希望之顏色者。 此種方式，前述影罩係配置於鄰接於R、G、B螢光體 之處。 第3圖爲安有關罩框之習知之一般性結構。 如第3圖所示，影罩1係具有設有電子束可通過之眼孔 3的略長方形之有孔部5，與在該有孔部5之周邊彎折成 略直角的邊緣部7,前述邊緣部7係安裝於罩框9之內側。 經濟部中央標準局貝工消費合作社印裝 界 ^ 訂 (請先閲讀背面之注$項再填寫本頁) 如此，安裝有影罩1之罩框9 ’如第4圖所示，係於固 設在面板11之內周面上的安裝銷13上，卡合前述罩框9 外側上所熔接之鉤掛彈性體，而將前述影罩1以與面板 之內周面上所塗佈之螢光體圖樣17相隔一定間隙之方式 作配置。 以此種結構，罩框9爲以拉張之方式支持前述影罩1， 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） A7 B7 405141 五、發明説明（） — 必須具備甚充份之機械強度。 前述罩框9之機械強度，與其厚度之增加成正比，但因 厚度較厚時會有重量變重之問題’故大致設成爲相對於墊 體19以最小之厚度可獲得最大的機械強度者。 又，前述墊圈19因係熔接著影罩1之邊緣部7之部份， 故前述影罩1之大小有受到限制，而無法增加其有孔部5 之幅度，又，前述影罩1之邊緣部7係以點接觸之方式支 持於罩框9之墊圈19上，故自外部被施與衝擊時，容易 產生振動而發生振鳴。最近的大型陰極射線管因內裝有高 輸出功率之喇叭，故影罩1爲會產生共振之簡單結構時， 則畫質之劣化爲不可避免之情況。 其他之習用實施例，如第5圖所示，於罩框9之開口端 形成護邊體21，而可增加與影罩1之熔接面積，同時亦維 持其機械強度，此種物品已被實用化。 惟*前述套合部21因自罩框9之開口端朝外側延伸出， 故在將罩框9安裝於面板11之內側時，將會被前述安裝 銷13所妨礙而影響作業之進行，相反地，若設成不會與 安裝銷13之凸端產生干擾時，則將造成罩框9之設大之 限制，而使影罩1之有效畫面之大小變小。 [發明目的] 本發明之目的在於提供一種可在罩框上形成補強機械 強度用的護邊體，而亦不會產生與面板之安裝銷的干 擾，可容易地實行組裝的陰極射線管用影罩結構者。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 應載明难 技可據以 ⑴發明背 ⑵發明柄 ⑶發明绒 符號次 2. 说明書势 人士閱tf 號標1己， ，以便1 ψ A ' y 3. 说明書灰 詞之譯i 4. 由左至又 晰不得和 5. 發明説「 經濟部中央標準局—工消費合作社印裝 經濟部中央標準局員工消費合作社印製 A7 -AO^lil__-_ 五、發明説明（） - 本發明之另一目的爲提供一種影罩之成型性較佳，不會 發生振鳴，且可增大其有孔部的有效畫面的陰極射線管用 影罩結構者。 爲將上述目的具體化，本發明之結構爲在通常之熔接有 影罩的罩框之頂緣側形成護邊體，以期提高機械強度，與 此同時，於上述護邊體之一定的部位上形成缺口，而構成 爲在組裝工程中該護邊體不會被通常設於面板內側的安 裝銷所妨礙者。 又，本發明係於框上形成與陰極射線管之軸方向平行之 直立部，此直立部上包含有熔接於影罩之邊緣部之框全 體上的構成者。 又，本發明有關之影罩，於邊緣部之長邊上以均等之間 隙形成有至少7個的缺口，而於短邊上以均等之間隙形成 有至少5個的缺口。 依此種結構之本發明，可藉由護邊體將罩框之機械性強 度於整體上平均地補強，故可大幅減少厚度，而可使重量 變輕。又'，藉由將影罩直接熔接於罩框之直立部，可增大 有孔部的有效畫面，而可將一個影罩結構，經過僅將鉤掛 彈性體作位置變更之簡單作業，兼用作爲I5吋及I7吋之 陰極射線管，故可達到零件共通化之目的，而上述影罩在 安裝於罩.框內側之狀態下，係十分安定，不會發生振鳴之 現象。 [圖式之簡單說明] 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ——I,------i—.----tr------ (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準扃員工消費合作杜印裝 405141 at B7 五、發明説明（) 第1圖爲揭示本發明之主要構成的立體分解圖。 第2圖爲揭示本發明之罩框結構實施例之部份側剖面圖。 第3圖爲揭示習知之罩框結構之立體分解圖。 第4圖爲揭示第3圖所圖示之罩框結構之陰極射線管之實 施例的部份側剖面圖。 第5圖爲揭示係習知之罩框結構之其他實施例之部份側剖 面圖。 [主要元件符號之說明] 2 罩框 4 墊體 6 護邊體 8 影罩 10 缺口 12 邊緣部 14 直立部 16 凹口 18 鉤掛彈性體 [發明之詳細說明] 以下，參照附圖詳細說明本發明之較佳實施例。 第1圖爲揭示本發明有關之罩框結構之結構分解立體 圖，在該例示之圖面上，罩框2在外周面之一定的部位形 成有墊體4以及護邊體6，而具有可將機械強度大幅提高 (請先聞讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 經濟部中央標準局貝工消費合作社印製 A7 ____B7_ 五、發明説明（） 之構造。 於上述護邊體6中間部，形成有一部份缺除所形成的缺 口 10, 一影罩8之周邊部份彎折成略直角所成的邊緣部 12，係安裝於罩框2之內。 罩框2在開口端之護邊體6之下側形成有與陰極射線 管（未顯示）之管軸成平行的直立部14。此直立部I4與 影罩8熔接面積將增大，同時亦將畫面之有效面積增大。 一方面，因邊緣部12整體係接續支持於罩框2之直立部 14，故可防止外部振動所造成的振鳴現象，而不會發生損 傷畫質之情形。 一方面，在上述影罩8之邊緣部12,爲防止擠壓成型時 所產生應力集中現象，於長邊側至少設有7處，而於短邊 側至少設有5處的凹口 16。 此等凹口 16最佳配置爲在長邊與短邊之中間部形成3 處，而其他的則平均分配地設於兩側。又，上述各凹口 16 其角部份須具有圓角之形狀，而鄰接於邊緣部12之角落 的凹口 16則須形成爲較其他部份爲深者爲佳。 上述凹口 16係擠製工程中在邊緣部12之成型時所產生 之應力平均地分散，而使之不致產生皺紋者。 第2圖所例示者，係爲將本發明之罩框裝入於通常使用 的面板11內部之實施例。 上述罩框2係自形成有護邊體6之開口端朝向面板11 之內側插入，而藉由將其外側之鉤掛彈性體18卡止於安 裝銷13上，將上述影罩8配置成與面板11之內側之螢光 ) -----------/--------—1T-----It (請先閲讀背面之注意事項再填寫本頁) A7 A7 經濟部中央標準局貝工消費合作社印裝 _40^141 _!Z_ 五、發明説明（） 體圖樣π成相對。 在此過程中，形成於上述罩框2之護邊體6上的缺口 10 係與面板11內周面上所固設之安裝銷13相交叉，故可在 完全不會形成妨礙之情形下做裝入操作。 又，以上述護邊體6可將罩框2之開口端側之強度明顯 地補強，故使其厚度於全體上皆輕薄化及輕量化。 又，上述護邊體6因可作爲影罩2的保護手段，故在組 裝作業中可防止前述影罩8之損傷。 下示之表1係揭示與本發明之陰極射線管爲同一機種之 公知之陰極射線管之有效畫面之比較例’單位爲mm。 [表1] 機種 水平幅度 垂直幅度 對角蝠度 本發明 332.5 250.2 411.6 三星電管 326.0 243.5 404.5 松下 328.1 246.1 408.7 東芝 324.6 242.9 403.8 日立 330.5 247.5 408.0 如以上所述，本發明係藉由將於罩框2上插入安裝的影 罩8的開口端彎折，而成型出護邊體6，以得到增強強度 之效果。藉此，可將上述框之厚度減薄’而達到輕量化的 目的，同時因於上述護邊體6上形成缺口 1〇,故可容易地 將上述罩框結構裝入面板11內’而可使影罩8之規格爲 本紙張尺度適用中國國家標準（CNS ) A4規格（210Χ297公釐） I.丨"--------Ά---—----訂-----·—嚷 l· (請先閲讀背面之注意事項再填寫本頁) 405141 a? _B7_ 五、發明説明（） 最大。例如可將15吋用罩框結構的有效畫面適用成17 吋，可將一個零件共用於兩種陰極射線管上。又，藉由使 影罩8之邊緣部I2全體接觸支持於罩框2之直立部14， 可防止發生振鳴現象。 ---------^1 — (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局貝工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）405141 a7 B7 V. Description of the invention () [Technical category to which the invention belongs] The present invention relates to a shadow mask structure for a cathode ray tube having a structure suitable for a shadow mask, and more particularly to a shadow mask that can increase the effective screen of the screen. A shadow mask structure for a cathode ray tube that can be easily mounted on a mask frame and easily removed. [Known technology] A color cathode ray tube with a shadow mask built in. The R, G, and B electron beams scanned from the electron gun converge and pass through the eye holes of the shadow mask. On the G, B, and B phosphors, the desired color is exhibited by the aforementioned writings of the electron beams. In this manner, the shadow mask is disposed adjacent to the R, G, and B phosphors. Fig. 3 shows the general structure of the conventional frame structure. As shown in FIG. 3, the shadow mask 1 has a slightly rectangular hole portion 5 provided with an eyelet 3 through which an electron beam can pass, and an edge portion 7 bent at a right angle at the periphery of the hole portion 5, The edge portion 7 is mounted inside the cover frame 9. The Central Printing Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives ^ Order (please read the note on the back before filling in this page) So, the mask frame 9 with the shadow mask 1 installed is attached to the solid as shown in Figure 4. The mounting pin 13 provided on the inner peripheral surface of the panel 11 engages the hooked elastic body welded on the outer side of the cover frame 9, and the shadow mask 1 matches the fluorescent coating applied on the inner peripheral surface of the panel. The light body patterns 17 are arranged in a certain gap. With this structure, the mask frame 9 is used to support the aforementioned shadow mask 1 in a stretched manner. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) A7 B7 405141 5. Description of the invention ()-must have Full mechanical strength. The mechanical strength of the aforementioned cover frame 9 is proportional to the increase of its thickness, but because the weight becomes heavier when the thickness is thicker ', it is roughly set to be the one that can obtain the maximum mechanical strength with the smallest thickness relative to the cushion body 19. In addition, because the washer 19 is welded to the edge portion 7 of the shadow mask 1, the size of the shadow mask 1 is limited, and the width of the hole portion 5 cannot be increased. Furthermore, the edge of the shadow mask 1 The part 7 is supported on the washer 19 of the cover frame 9 in a point contact manner, so when an impact is applied from the outside, it is easy to generate vibration and vibrate. Recently, large-scale cathode ray tubes are equipped with a horn having a high output power. Therefore, when the shadow mask 1 has a simple structure that generates resonance, deterioration of image quality is unavoidable. In other conventional embodiments, as shown in FIG. 5, an edge guard 21 is formed at the open end of the mask frame 9 to increase the welding area with the shadow mask 1 while maintaining its mechanical strength. This kind of article has been put into practical use. Into. However, since the aforementioned engaging portion 21 extends outward from the open end of the cover frame 9, when the cover frame 9 is installed inside the panel 11, it will be hindered by the installation pins 13 and affect the operation, instead If it is set so as not to interfere with the convex end of the mounting pin 13, it will cause a restriction on the setting of the mask frame 9 and reduce the size of the effective screen of the shadow mask 1. [Objective of the Invention] An object of the present invention is to provide a shadow shield for a cathode ray tube, which can form an edge protector for reinforcing mechanical strength on a cover frame without causing interference with a mounting pin of a panel, and can be easily assembled. Structurer. This paper size applies Chinese National Standard (CNS) A4 specifications (210X297 mm). It should be stated that difficult techniques can be used to invent the invention. The invention handles the invention. Velvet symbol times. So that 1 ψ A 'y 3. Translation of the gray words in the manual i 4. From left to right, and ca n’t be clear 5. 5. Invented "Printed by the Central Standards Bureau of the Ministry of Economic Affairs-Industrial and Consumer Cooperatives Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 -AO ^ lil __-_ V. Description of the invention ()-Another object of the present invention is to provide a cathode which has a good moldability, does not vibrate, and can increase the effective screen of a hole with a cathode. In order to realize the above-mentioned object, the structure of the present invention is to form an edge protector on the top edge side of a mask frame to which a shadow mask is usually welded, so as to improve the mechanical strength. A notch is formed in a certain part of the side body, and the side guard is not hindered by a mounting pin usually provided on the inner side of the panel during the assembly process. In addition, the present invention is formed on the frame with the cathode ray tube. Upright The upright portion includes a member that is welded to the entire frame of the edge portion of the shadow mask. In addition, the shadow mask according to the present invention has at least 7 gaps formed on the long sides of the edge portion with an equal gap, At least 5 gaps are formed on the short sides with an equal gap. According to the invention of such a structure, the mechanical strength of the frame can be evenly reinforced by the edge protector as a whole, so the thickness can be greatly reduced. , And can make the weight lighter. Also, by welding the shadow mask directly to the upright part of the mask frame, the effective screen of the hole part can be increased, and a shadow mask structure can be hooked to the elastic body only. The simple operation of changing the position, also used as I5 inch and I7 inch cathode ray tubes, so that the purpose of common parts can be achieved, and the above shadow mask is installed on the inside of the cover. The state is very stable and will not happen The phenomenon of vibration. [Simplified description of the drawing] This paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) ——I, ------ i —.---- tr --- --- (Please read the notes on the back before filling this page) Central Standards of the Ministry of Economic Affairs扃 Employee Consumption Cooperation Du Yinzhuang 405141 at B7 V. Description of the Invention (1) Figure 1 is an exploded perspective view showing the main structure of the present invention. Figure 2 is a partial side sectional view showing an embodiment of the hood frame structure of the present invention Fig. 3 is an exploded perspective view showing a conventional mask frame structure. Fig. 4 is a partial side sectional view showing an embodiment of a cathode ray tube showing the mask frame structure shown in Fig. 3. Fig. 5 is a disclosure It is a partial cross-sectional view of another embodiment of the conventional mask frame structure. [Explanation of the symbols of the main components] 2 Mask frame 4 Pad body 6 Edge protector 8 Shadow mask 10 Notch 12 Edge portion 14 Upright portion 16 Notch 18 Hook Hanging elastic body [Detailed description of the invention] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an exploded perspective view showing the structure of a mask frame according to the present invention. In the illustrated figure, the mask frame 2 is formed with a cushion body 4 and a guard body 6 at a certain position on the outer peripheral surface. The mechanical strength has been greatly improved (please read the precautions on the reverse side before filling out this page) This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm). Printed by the Bayer Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 ____B7_ V. Invention description () structure. A part of the cutout 10 formed in the middle of the edge guard 6 is formed. An edge portion 12 formed by bending a peripheral portion of the shadow mask 8 at a slightly right angle is installed in the mask frame 2. The mask frame 2 has an upright portion 14 formed parallel to a tube axis of a cathode ray tube (not shown) below the edge guard 6 at the open end. The welding area of the upright portion I4 and the shadow mask 8 will increase, and the effective area of the screen will also increase. On the one hand, since the edge portion 12 is continuously supported by the upright portion 14 of the cover frame 2 as a whole, the howling phenomenon caused by external vibration can be prevented without damaging the image quality. On the one hand, at the edge portion 12 of the shadow mask 8, at least seven notches are provided on the long side and at least five notches 16 are provided on the short side to prevent stress concentration during extrusion. These notches 16 are optimally arranged to form three places in the middle portion between the long side and the short side, and the other notches are equally distributed on both sides. In addition, the corner portions of each of the above-mentioned notches 16 must have a rounded shape, and the notches 16 adjacent to the corners of the edge portion 12 should be formed to be deeper than the other portions. The above-mentioned notches 16 are those in which the stress generated during the molding of the edge portion 12 in the extrusion process is evenly dispersed so as not to cause wrinkles. The example shown in Fig. 2 is an embodiment in which the mask frame of the present invention is incorporated in a panel 11 which is generally used. The cover frame 2 is inserted from the open end where the edge protector 6 is formed toward the inside of the panel 11, and the hook elastic body 18 on the outside is locked on the mounting pin 13, and the shadow mask 8 is arranged to be Fluorescence inside Panel 11) ----------- / --------— 1T ----- It (Please read the precautions on the back before filling this page) A7 A7 Printed by the Central Laboratories of the Central Bureau of Standards of the Ministry of Economic Affairs _40 ^ 141 _! Z_ V. Description of the invention () The body pattern π is opposite. In this process, the notch 10 formed on the edge protector 6 of the cover frame 2 intersects with the mounting pin 13 fixed on the inner peripheral surface of the panel 11, so it can be done without causing any obstruction at all. Load operation. In addition, since the strength of the open end side of the cover frame 2 can be significantly strengthened by the edge protector 6, the thickness can be made thinner and lighter overall. In addition, since the edge protector 6 can be used as a protection means for the shadow mask 2, it is possible to prevent the shadow mask 8 from being damaged during the assembly operation. Table 1 shown below shows a comparative example of an effective screen of a known cathode ray tube of the same model as the cathode ray tube of the present invention. The unit is mm. [Table 1] Models Horizontal Width Vertical Width Diagonal Bat Degree The present invention 332.5 250.2 411.6 Samsung tube 326.0 243.5 404.5 Panasonic 328.1 246.1 408.7 Toshiba 324.6 242.9 403.8 Hitachi 330.5 247.5 408.0 As described above, the present invention The open end of the shadow mask 8 inserted and installed on 2 is bent, and the edge protector 6 is formed to obtain the effect of enhancing the strength. Thereby, the thickness of the frame can be reduced to achieve the purpose of weight reduction. At the same time, because the notch 10 is formed on the edge protector 6, the cover frame structure can be easily installed in the panel 11. Make the specifications of the shadow mask 8 apply the Chinese National Standard (CNS) A4 specifications (210 × 297 mm) as the paper size. I. 丨 " -------- Ά --------- Order --- -· — 嚷 l · (Please read the notes on the back before filling out this page) 405141 a? _B7_ V. Description of the invention () The largest. For example, the effective screen of the 15-inch mask frame structure can be applied to 17-inch, and one part can be used for both types of cathode ray tubes. Furthermore, by making the entire edge portion I2 of the shadow mask 8 contact the upright portion 14 supported by the mask frame 2, it is possible to prevent the rattling phenomenon. --------- ^ 1 — (Please read the notes on the back before filling out this page) Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperative, this paper is printed in accordance with Chinese National Standard (CNS) A4 (210X297 Mm)