JPS6396847A - Reinforced cathode-ray tube - Google Patents
Reinforced cathode-ray tubeInfo
- Publication number
- JPS6396847A JPS6396847A JP24167386A JP24167386A JPS6396847A JP S6396847 A JPS6396847 A JP S6396847A JP 24167386 A JP24167386 A JP 24167386A JP 24167386 A JP24167386 A JP 24167386A JP S6396847 A JPS6396847 A JP S6396847A
- Authority
- JP
- Japan
- Prior art keywords
- ray tube
- front panel
- glass layer
- cathode ray
- funnel
- 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
Links
- 239000011521 glass Substances 0.000 claims abstract description 18
- 239000012783 reinforcing fiber Substances 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011152 fibreglass Substances 0.000 abstract 4
- 238000005336 cracking Methods 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000004880 explosion Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、防爆効果を有する補強形ブラウン管に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a reinforced cathode ray tube having an explosion-proof effect.
第２図ａ、ｂは慣用的に用いられている従来の補強形ブ
ラウン管の例を示すそれぞれ正面図および断面側面図で
ある。図において、（１）はブラウン管、（１ａ）はブ
ラウン管の前面パネル、（１ｂ）はブラウン管のファン
ネル、（２）はブラウン管の外周だはめこまれ、所要の
張力でブラウン管（１）を締付けている補強バンドであ
る。FIGS. 2a and 2b are a front view and a sectional side view, respectively, showing an example of a conventional reinforced cathode ray tube that is commonly used. In the figure, (1) is a cathode ray tube, (1a) is the front panel of the cathode ray tube, (1b) is the funnel of the cathode ray tube, and (2) is fitted around the outer periphery of the cathode ray tube, tightening the cathode ray tube (1) with the required tension. This is a reinforcing band.
このように、ブラウン管を補強バンドでしめ付けると、
爆縮に対する効果があることはよく知られている。すな
わち、真空時のブラウン管の前面パネル（１ａ）に衝撃
力が加わった場合、補強バンド（２）が無いとき裂は瞬
時にスカート部（図中破線で囲んだ部分）から、ファン
ネル（１ｂ）に進展し、爆縮する。それを防ぐために、
スカート部を補強バンド（２）でしめ付けることＫよシ
、き裂の進展を止める構造となっている。しかしながら
、方形のブラウン管に対しては、第２図に示すような補
強バンド（２）では圧縮力がブラウン管の四隅部に集中
し、このため防爆性能が劣化する場合があった。これを
防ぐため、ブラウン管と補強バンドとの間に、スペーサ
や当金部を各辺部に設け、各辺部においてほぼ一様な圧
縮力で締付ける工夫がなされている（特公昭５１−２８
９７８．実公昭５’７−３９８７５号公報〔発明が解決
しようとする問題点〕
従来のブラウン管は以上のように構成されておυ、信頼
性確保のために１補強バンド（２）の締付は力を均一に
しなければならず、品質管理が困難であり、締付は作業
のバラツキによシ爆縮するおそれがあった。In this way, when the CRT is tightened with a reinforcing band,
It is well known that it is effective against implosion. In other words, when an impact force is applied to the front panel (1a) of a cathode ray tube in a vacuum state, without the reinforcing band (2), the crack will instantly propagate from the skirt (the part surrounded by the broken line in the figure) to the funnel (1b). It develops and implodes. To prevent that,
By tightening the skirt portion with a reinforcing band (2), the structure is such that the propagation of cracks is stopped. However, for a rectangular cathode ray tube, the compressive force is concentrated at the four corners of the cathode ray tube in the reinforcing band (2) as shown in FIG. 2, which sometimes deteriorates the explosion-proof performance. In order to prevent this, a spacer or abutment part is provided on each side between the cathode ray tube and the reinforcing band, and a device is devised to tighten it with almost uniform compressive force on each side (Special Publication No. 51-28
978. Japanese Utility Model Publication No. 5'7-39875 [Problems to be solved by the invention] The conventional cathode ray tube is constructed as described above, and in order to ensure reliability, the tightening of the reinforcing band 1 (2) is performed using force. must be made uniform, making quality control difficult, and there was a risk that tightening would implode due to variations in work.
この発明は上記のような問題点を解消するためになされ
たもので、防爆性能が向上するとともに、品質の向上２
部品点数や作業工程の削減が可能な補強形ブラウン管を
得ることを目的とする。This invention was made to solve the above-mentioned problems, and it not only improves explosion-proof performance but also improves quality.
The objective is to obtain a reinforced cathode ray tube that can reduce the number of parts and work processes.
この発明に係る補強形ブラウン管は、前面パネルとファ
ンネルとを強化繊維入力ガラス層を介して接合したもの
である。The reinforced cathode ray tube according to the present invention has a front panel and a funnel joined together via a reinforcing fiber input glass layer.
この発明における補強形ブラウン管の前面パネルとファ
ンネル間には強化繊維入υガラス層が介在するため、例
えば曲面パネルから発生したき裂がスカート部まで進展
しても、強化繊維入夛ガラス層によシき裂の進展が鈍化
あるいは停止し、ファンネルにまで達しにくい。よって
、爆縮を防止できる。Since the reinforcing fiber-containing glass layer is interposed between the front panel and the funnel of the reinforced cathode ray tube in this invention, even if a crack that occurs in the curved panel propagates to the skirt, the reinforcing fiber-containing glass layer will prevent the crack from spreading to the skirt. The propagation of the crack slows down or stops, making it difficult to reach the funnel. Therefore, implosion can be prevented.
以下、この発明の一実施例を図について説明する。第１
図において、（１）はブラウン管、（ｘａ）はブラウン
管の前面パネル、（１１））はファンネル、（３）は前
面パネル（１ａ）とファンネル（１ｂ）との間にある強
化繊維入りガラス層であり、前面パネル（１ａ）とファ
ンネル（１ｂ）と強化繊維入シガラス層（３）とはお互
いにフリットガラスで接着されている。なお、強化繊維
としては例えば炭素繊維（−例として直径１０μｍ前後
、長さ５〜１０ｍ＋ｎ ）やアルミナなどが用いられる
。An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, (1) is the cathode ray tube, (xa) is the front panel of the cathode ray tube, (11)) is the funnel, and (3) is the reinforced fiber-containing glass layer between the front panel (1a) and the funnel (1b). The front panel (1a), the funnel (1b), and the reinforcing fiber-containing glass layer (3) are bonded to each other with frit glass. As the reinforcing fibers, for example, carbon fibers (for example, about 10 μm in diameter and 5 to 10 m+n in length), alumina, etc. are used.
このように構成されたブラウン管においては、スカート
部（図示破線で示す）Ｋは強化繊維入シガラス層（３）
があるため、その部分の強度、き裂進展に対する抵抗が
、前面パネル（１ａ）などに用いられているガラスと比
較して格段に優れておシ、例えば前面パネル（ｌａ）で
き裂が発生し、スカート部に向って進展しても、強化繊
維入シガラス層（３）で、き裂が鈍化あるいは停止し爆
縮しない。In the cathode ray tube configured in this way, the skirt portion (indicated by the broken line in the figure) K is a reinforcing fiber-containing glass layer (3).
Because of this, the strength of that part and the resistance to crack propagation are much better than the glass used for the front panel (1a), etc. Even if the crack propagates toward the skirt portion, the reinforcing fiber-containing shiglas layer (3) slows or stops the crack and does not implode.
また、従来の補強バンドでは、その効果がブラウン管の
側周部に均一に働いているとは保証できず、信頼面から
見ても本発明が優れている。さらに、本発明では締付は
作業は不要となシ製作工程が省略される公安価となる。Further, with conventional reinforcing bands, it cannot be guaranteed that the effect is uniformly applied to the side circumference of the cathode ray tube, and the present invention is superior from a reliability standpoint as well. Furthermore, in the present invention, no tightening work is required and the manufacturing process is omitted, making it inexpensive.
また、部品点数も少なくてすむ。Additionally, the number of parts can be reduced.
なお、上記実施例では、ブラウン管スカート部の前面パ
ネル（１ａ）とファンネル（１ｂ）との間に強化繊維入
シガラス層（３）を配置し、これらをフリットガラスで
接着した場合について示したが、前面パネル（１ａ）と
ファンネル（ユｂ）とを強化繊維入シフリットガラス層
で接着しても同様の効果を奏する。In addition, in the above embodiment, the reinforcing fiber-containing glass layer (3) is arranged between the front panel (1a) and the funnel (1b) of the cathode ray tube skirt portion, and these are bonded with frit glass. A similar effect can be obtained by bonding the front panel (1a) and the funnel (yub) with a reinforcing fiber-containing Schifrit glass layer.
以上のように１この発明によれば、前面パネルとファン
ネルとを強化繊維入りガラス層を介して接合したので、
防爆性能や信頼性が向上し、また、部品点数や作業工程
が削減できるため安価な補強形ブラウン管が得られる効
果がある。As described above, 1.According to the present invention, since the front panel and the funnel are joined via the reinforcing fiber-containing glass layer,
Explosion-proof performance and reliability are improved, and the number of parts and work processes can be reduced, resulting in an inexpensive reinforced cathode ray tube.
第１図はこの発明の一実施例による補強形ブラウン管を
示す断面側面図、第２図ａ、ｂは従来の補強形ブラウン
管を示すそれぞれ正面図および断面側面図である。
図において、（１）はブラウン管、（ｌａ）は前面パネ
ル、（１１））はファンネル、（２）は補強バンド、（
３）は強化繊維入りガラス層である。
なお、図中同一符号は同−又は相当部分を示す。FIG. 1 is a sectional side view showing a reinforced cathode ray tube according to an embodiment of the present invention, and FIGS. 2a and 2 b are a front view and a sectional side view, respectively, of a conventional reinforced cathode ray tube. In the figure, (1) is a cathode ray tube, (la) is a front panel, (11) is a funnel, (2) is a reinforcing band, (
3) is a glass layer containing reinforcing fibers. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (2)
層を介して接合した補強形ブラウン管。(1) A reinforced cathode ray tube in which the front panel and funnel are joined via a glass layer containing reinforced fibers.
ラス層である特許請求の範囲第１項記載の補強形ブラウ
ン管。(2) The reinforced cathode ray tube according to claim 1, wherein the reinforcing fiber-containing glass layer is a reinforcing fiber-containing frit glass layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24167386A JPS6396847A (en) | 1986-10-09 | 1986-10-09 | Reinforced cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24167386A JPS6396847A (en) | 1986-10-09 | 1986-10-09 | Reinforced cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6396847A true JPS6396847A (en) | 1988-04-27 |
Family
ID=17077816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24167386A Pending JPS6396847A (en) | 1986-10-09 | 1986-10-09 | Reinforced cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6396847A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5539159A (en) * | 1978-09-12 | 1980-03-18 | Matsushita Electronics Corp | Explosion-proof image receiving tube |
| JPS5559639A (en) * | 1978-10-27 | 1980-05-06 | Nec Corp | Planar indicating tube and its manufacturing method |
-
1986
- 1986-10-09 JP JP24167386A patent/JPS6396847A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5539159A (en) * | 1978-09-12 | 1980-03-18 | Matsushita Electronics Corp | Explosion-proof image receiving tube |
| JPS5559639A (en) * | 1978-10-27 | 1980-05-06 | Nec Corp | Planar indicating tube and its manufacturing method |
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