JPS59108244A - Manufacture of explosion-proof braun tube - Google Patents

Manufacture of explosion-proof braun tube

Info

Publication number
JPS59108244A
JPS59108244A JP21544682A JP21544682A JPS59108244A JP S59108244 A JPS59108244 A JP S59108244A JP 21544682 A JP21544682 A JP 21544682A JP 21544682 A JP21544682 A JP 21544682A JP S59108244 A JPS59108244 A JP S59108244A
Authority
JP
Japan
Prior art keywords
tension band
dimension
contacting
explosion
cathode ray
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.)
Granted
Application number
JP21544682A
Other languages
Japanese (ja)
Other versions
JPH0358132B2 (en
Inventor
Shoichi Yokoyama
横山 昌一
Kazuo Akaishi
赤石 一雄
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP21544682A priority Critical patent/JPS59108244A/en
Publication of JPS59108244A publication Critical patent/JPS59108244A/en
Publication of JPH0358132B2 publication Critical patent/JPH0358132B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86Vessels; Containers; Vacuum locks
    • H01J29/87Arrangements for preventing or limiting effects of implosion of vessels or containers

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:To maintain stress of tension band against side wall section of panel constant by pressure contacting at least two zigs where the dimension at the portion contacting against the inner wall of tension band is known accurately with the tension band then measuring the dimension of tension band at the portion not contacting with said zig. CONSTITUTION:Two zigs 31, 32 where the dimension at the portion contacting with the inner wall of tension band 26 is previously known accurately are inserted and moved in the arrow directions 33, 34 to pressure contact with the tension band 26. Then the dimension at the portion 35 not contacting with said two zigs 31, 32 is measured to obtain the inner circumferential length of tension band 26 accurately. When employing symmetrical zigs 31, 32 having two corners secured with a fixing metal 27 most hard to measure, while assuming the dimension at the portion of each zig 31, 32 contacting with the inner wall of tension band 26 is L2 and the dimension at the portion 35 is G, the inner circumferential length L0 of tension band can be obtained accurately as L0=2XL2+2XG.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は、防爆形ブラウン管の製造方法に係り、特にパ
ネル側壁部に環状のテンションバンドを焼成めにより張
架する構造の防爆形ブラウン管の製造方法に関するもの
である。
[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method of manufacturing an explosion-proof cathode ray tube, and particularly to a method of manufacturing an explosion-proof cathode ray tube having a structure in which an annular tension band is stretched on the side wall of the panel by firing. It is related to.

〔発明の技術的背景〕[Technical background of the invention]

ブラウン管のパネル側壁部に焼成めにより環状のテンシ
ョンバンドを張架する防爆形ブラウン管の製造方法は、
通常第1図に示す方法で行なわれている。
The manufacturing method for explosion-proof cathode ray tubes involves stretching an annular tension band on the side wall of the cathode ray tube panel by firing.
This is usually done by the method shown in FIG.

即チ、パネル(2)、パネル側壁部(3)、ファンネル
(4)及びネック(5)からなるブラウン管(1)に対
設して環状のテンションバンド(6)を配置し、このテ
ンションバンド(6)を例えば環状のガスバーナ(8)
で内側より加熱してテンションバンド(6)を熱膨張さ
せ次にブラウン管(1)のパネル側壁部(3)に直接ま
たは図示しないテープを介してテンションバンド(6)
を挿入し、このテンションバンド(6)の冷却による収
縮力を利用してパネル側壁部(3)に所定の応力をかけ
るように張架するようになされている。
That is, an annular tension band (6) is arranged opposite to the cathode ray tube (1) consisting of a panel (2), a panel side wall (3), a funnel (4) and a neck (5), and this tension band ( 6), for example, an annular gas burner (8)
The tension band (6) is heated from the inside to thermally expand, and then the tension band (6) is attached directly to the panel side wall (3) of the cathode ray tube (1) or via a tape (not shown).
is inserted, and the tension band (6) is stretched so as to apply a predetermined stress to the panel side wall portion (3) by utilizing the shrinkage force due to cooling of the tension band (6).

この焼成めによる防爆の利点は、テンションバンド(6
)の材料の有する機械的性質を最大限に活用し、個々の
ブラウン管に加える締め伺は力を一定にできることであ
る。
The explosion-proof advantage of this firing method is that the tension band (6
) by making the most of the mechanical properties of the material, and making sure that the force applied to each cathode ray tube remains constant.

次に、第2図により焼成め防爆に対して一般的に使用さ
れている軟鋼材の応力と伸びの関係を示す曲線01)に
より応力と伸びの関係を説明すると、伸び0〜t1の範
囲(A)は弾性域であり伸び(歪)に比例して応力(締
め付は力)が変化する。更に月才゛1に伸び(歪)を加
えると応力が一定のB範囲即ち伸びt1〜t、は塑性域
となる。従って環状のテンションバンド(6)を伸び(
歪) tt〜t、の範囲で管理すれば締め付は力の一定
な防爆形ブラウン管がイυられることになる。
Next, the relationship between stress and elongation will be explained using curve 01 (curve 01) showing the relationship between stress and elongation of mild steel materials commonly used for fired explosion-proof materials in Figure 2. A) is an elastic region, and stress (tightening force) changes in proportion to elongation (strain). Furthermore, when elongation (strain) is added to the stress 1, the B range where the stress is constant, that is, the elongation t1 to t, becomes a plastic region. Therefore, stretch the annular tension band (6) (
If the strain is controlled within the range of tt to t, an explosion-proof cathode ray tube with constant tightening force will be used.

そして、このテンションバンド(6)の伸び(歪)用は
ブラウン管(1)のパネル側壁部(3)の外周長を(T
、I)としテンションバンド(6)の内周長を(LO)
とすると、この(L、)と(LQ)の差となりL+ −
Lo 〜4〜4の範囲に管理することが要求されること
になる。
For elongation (strain) of this tension band (6), the outer circumference length of the panel side wall (3) of the cathode ray tube (1) is (T
, I) and the inner circumference length of the tension band (6) is (LO)
Then, the difference between (L, ) and (LQ) is L+ −
It will be required to manage it within the range of Lo~4~4.

しかるに、この塑性域(1t〜^)は通、常1.0〜4
.0罷と狭く、更にテンションバンド(6)の製造上の
誤差及びブラウン管(1)の特にパネル側壁部(3)の
製造上の誤差が入り、塑性域(21〜4)に入れること
はテンションバンド(61の製造精度ばかりではなく測
定精度も極めて重要となる。
However, this plastic region (1t~^) is usually 1.0~4
.. The tension band is as narrow as 0 lines, and there are also manufacturing errors in the tension band (6) and manufacturing errors in the panel side wall (3) of the cathode ray tube (1), and it is difficult for the tension band to fall into the plastic range (21 to 4). (Not only the manufacturing accuracy of 61, but also the measurement accuracy is extremely important.

これに対し、従来は焼嵌め前後におけるテンションバン
ド(6)の外周長の変化を測定し伸び(歪)景を管理し
ていたが、この方法によると実際にブラウン管に焼嵌め
なければならず、作用性が悪い。
In contrast, in the past, the elongation (distortion) pattern was managed by measuring the change in the outer circumference of the tension band (6) before and after shrink-fitting, but with this method, it was necessary to actually shrink-fit the tension band (6) to the cathode ray tube. Poor effectiveness.

また外周長から内周長を計算などにより求める方法もあ
るが、この方法はテンションバンド(6)に取り付けら
れているか、またはテンションバンド(6)とパネル側
壁部(3)の隅部挿入される支持金具や帯材から環状の
テンションバンド(6)にする時K r小用する溶接ナ
ゲツトのパリなどの関係上測定精度に支障をもたらす要
因が多い。々どの問題点がある。
There is also a method of calculating the inner circumference from the outer circumference, but this method involves attaching it to the tension band (6) or inserting it into the corner of the tension band (6) and the panel side wall (3). When making an annular tension band (6) from a supporting metal fitting or a band material, there are many factors that impede measurement accuracy, such as flashing of welding nuggets that require Kr. What problems are there?

〔発明の目的〕[Purpose of the invention]

本発明は、前述した従来の諸問題点に鑑みなされたもの
であり、環状のテンションバンドの内周長を正確に測定
することによりパネル側壁部に対するテンションバンド
の応力を一定にすることが可能な防爆形ブラウン管の製
造方法を提供することを目的としている。
The present invention was made in view of the above-mentioned conventional problems, and it is possible to keep the stress of the tension band against the panel side wall constant by accurately measuring the inner circumference length of the annular tension band. The purpose is to provide a method for manufacturing explosion-proof cathode ray tubes.

〔発明の概要〕[Summary of the invention]

即ち、本発明はブラウン管のパネル側壁部に甲状のテン
ションバンドを焼嵌めにより張架するようになされた防
爆形ブラウン管の製造方法において、テンションバンド
の内壁に当接する部位の寸法が予め正確にわかっている
少くとも2[:旨の治具全テンションバンドに圧接し、
との治具の当接しない部位のテンションバンドの寸法を
測定するようになされていることを特徴とする防爆形ブ
ラウン管の製造方法である。
That is, the present invention provides a method for manufacturing an explosion-proof cathode ray tube in which a shell-like tension band is stretched over the side wall of the cathode ray tube panel by shrink fitting, in which the dimensions of the portion of the tension band that abuts on the inner wall are accurately known in advance. At least 2 jigs are pressed against the entire tension band,
This method of manufacturing an explosion-proof cathode ray tube is characterized in that the dimension of the tension band is measured at a portion where the jig does not come into contact with the jig.

〔発明の実施例〕[Embodiments of the invention]

次に、本預明の防爆形ブラウン管の製造方法の一実ノ血
例を第3図及び第5図により説明する。
Next, an example of Honyomei's method for manufacturing an explosion-proof cathode ray tube will be explained with reference to FIGS. 3 and 5.

141Jち、パネルt27J、パネル側壁部(23)、
ファンネル咄)及びネック(’251からなるブラウン
管(21)に対設してLY(状のテンションバンド(2
[9を配置し、このテンションバンド(26)を例えば
甲状のガスバーナ(28)で内側、1: リ加Qしてテ
ンションバンドI26)を熱膨張させ、次にブラウン管
(21)のパネル」11壁部(2濁に直接または図示し
ないテープを介してテンションバンド(20を挿入し、
このテンションバンド(26)の冷却による収縮力を利
用してパネル側驕部ゲタに所定の応力をかけるように張
架するようになされている。
141J, panel t27J, panel side wall (23),
A tension band (2
[9, place this tension band (26) inside with, for example, a thyroid-shaped gas burner (28), 1: Re-apply Q to thermally expand the tension band I26), and then attach the panel of the cathode ray tube (21) to the 11 wall. Insert the tension band (20) directly or through a tape (not shown) into the
The contraction force of the tension band (26) due to cooling is used to tension the panel side ridges so as to apply a predetermined stress.

これまでは従来とほぼ同様であるが、実施例においては
テンションバンド(ハ)の内周長を求めるのに第4図に
示すような方法を用いることを特徴としている。
The process up to now is almost the same as the conventional one, but the embodiment is characterized in that the method shown in FIG. 4 is used to determine the inner circumferential length of the tension band (c).

即ち、テンションバンド(2匂の内締に当接する部位の
寸法が予め正確にわかっている斜線で示す2個の治具(
3υ(肋を挿入し、矢印0り04方−に移動させること
によりテンションバンドμs)に圧排したJQ合、この
2個の治具C+t)C3壜に当接しない部位(3勺の寸
法を測定することによりテンションバンド(261の内
周長を正確に求めるようにしている。
In other words, two jigs (shown with diagonal lines) whose dimensions are accurately known in advance at the parts that come into contact with the inner tightening of the tension band (2) are used.
3υ (JQ removed by the tension band μs by inserting the rib and moving it in the direction of the arrow 0 and 04), these two jigs C + t) C3 Measure the dimensions of the part that does not contact the bottle (3) By doing this, the inner circumferential length of the tension band (261) can be accurately determined.

例えば、図のように治具c+u (3zとして最も測定
しにくい取付は金具07)を固定した隅部をそれぞれ2
個有する左右対称のものとし、それぞれの治−J(、e
tl)に3ノがテンションバンド(4)の内壁に当接す
る部位の寸法を同じ寸法である(L、)とし、部位(3
つの寸法をGとすればテンションバンドの内周長(LO
)はLo= 2XL、+2XG どして正確に求めることができる。
For example, as shown in the figure, fix the corners of the jig c+u (the most difficult installation for 3z is metal fitting 07) by 2
It is assumed that the left and right sides are individually symmetrical, and each
tl), the dimensions of the part where No. 3 contacts the inner wall of the tension band (4) are the same dimensions (L,), and the part (3)
If G is the dimension of the tension band, then the inner circumference length of the tension band (LO
) can be determined accurately using Lo=2XL, +2XG.

このような測定法による内周長(LO)の測定誤差は±
0.1市となり、従来の測定誤差±0.8〜1.2問に
比較して極めて精度の高い値となった。
The measurement error of inner circumference (LO) using this measurement method is ±
The result was 0.1 city, which is an extremely highly accurate value compared to the conventional measurement error of ±0.8 to 1.2 questions.

前述した治具C31) (32は両方共矢印(33)に
34)に移動するように説明したが、一方の治具(3+
)を固定し両方の治具cll) C,I7J間に治具(
′(υから治具C321を囲P間させるような器具を使
用し、部位(31の寸法は例えばデジタルギャップ測定
器など全使用して直読する構造にすればfj% :lJ
:のテンションバンド(26)を完成直後簡単に全鎮9
検査や抜取検査を行なうことができる。
The above-mentioned jig C31) (both 32 were explained to move to the arrow (33) and 34), but one jig (3+
) and both jigs cll) between C and I7J.
If you use a device that places the jig C321 between the distance P from υ and have a structure where the dimensions of part (31) can be read directly using a digital gap measuring device, for example, fj%:lJ
: Easily complete tension band 9 immediately after completing the tension band (26)
Inspections and sampling tests can be conducted.

壕だ、両治具43+) (3aをテンションバンドに圧
接する力は均一なことが必要条件であるため、この圧1
yには重りをつけて治具(32を移動させる構造にする
か、オたは適当な付値にデジタル変位測定器を使用する
ことが望ましい。
trench, both jigs 43+) (Since it is necessary that the force that presses 3a against the tension band is uniform, this pressure 1
It is desirable to have a structure in which a weight is attached to y to move the jig (32), or to use a digital displacement measuring device to assign an appropriate value.

〔発明の効果〕〔Effect of the invention〕

上述のように本発明の防爆形ブラウン管の製造方法によ
れば環状のテンションバンドの内周長を簡単かつ正確に
測定することが可能であり2.ブラウン管のパネル@0
壁部に張架しても常に塑性域で均−力応力が得られるの
で極めて品位のよい防爆形ブラウン管が得られる効果が
ある。
As described above, according to the method of manufacturing an explosion-proof cathode ray tube of the present invention, it is possible to easily and accurately measure the inner circumferential length of the annular tension band. CRT panel @0
Even when the wall is stretched, a uniform stress is always obtained in the plastic region, resulting in an explosion-proof cathode ray tube of extremely high quality.

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

第1図は通常のテンションバンドの焼成め工1晃を示す
説明図、第2図はテンションノくンドに使1目される軟
鋼材の伸びと応力との関係を示す曲It” ”’l、第
3図及び第4図は本発明の一実施例を示−i−r:+で
あり、第3図はテンションバンドの焼成め工4゛tを示
す説明図、第4図はテンションノくンドの内に’;I長
の測定方法の原理を示す説明図である。 1.21・・・ブラウン管    3,23・・・ノ々
ネル」り壁部6.26・・・テンションバンド 33.
34・・・治具代理人 弁理士   井 上 −男
Figure 1 is an explanatory diagram showing the firing process of a normal tension band, and Figure 2 is a song showing the relationship between elongation and stress of mild steel materials used for tension bands. , FIG. 3 and FIG. 4 show an embodiment of the present invention. FIG. 2 is an explanatory diagram showing the principle of a method for measuring I length within a kundo. 1.21...Cathode ray tube 3,23...Nononel wall part 6.26...Tension band 33.
34...Jig agent Patent attorney Inoue - Male

Claims (1)

【特許請求の範囲】[Claims] ブラウン管のパネル側壁部に環状のテンションバンドを
焼成めにより張架するようになされた防爆形ブラウン管
の製造方法において、前記テンションバンドの内壁に当
接する部位の寸法が予め正確にわかっている少くとも2
個の治具を前記テンションバンドに圧接し、前記治具の
当接しない部位のmJ 記テンションバンドの寸法を測
定することにより前記テンションバンドの内周長を求め
るようになされていることを特徴とする防爆形ブラウン
管の製造方法。
In a method of manufacturing an explosion-proof cathode ray tube in which an annular tension band is stretched on the side wall of the cathode ray tube panel by firing, the dimensions of the portion of the tension band that abuts on the inner wall are accurately known in advance.
The inner circumferential length of the tension band is determined by pressing a jig against the tension band and measuring the dimensions of the tension band in mJ at a portion not in contact with the jig. A manufacturing method for explosion-proof cathode ray tubes.
JP21544682A 1982-12-10 1982-12-10 Manufacture of explosion-proof braun tube Granted JPS59108244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21544682A JPS59108244A (en) 1982-12-10 1982-12-10 Manufacture of explosion-proof braun tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21544682A JPS59108244A (en) 1982-12-10 1982-12-10 Manufacture of explosion-proof braun tube

Publications (2)

Publication Number Publication Date
JPS59108244A true JPS59108244A (en) 1984-06-22
JPH0358132B2 JPH0358132B2 (en) 1991-09-04

Family

ID=16672488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21544682A Granted JPS59108244A (en) 1982-12-10 1982-12-10 Manufacture of explosion-proof braun tube

Country Status (1)

Country Link
JP (1) JPS59108244A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4898024A (en) * 1987-05-22 1990-02-06 Nissan Motor Co., Ltd. Piezoelectric pressure measuring instrument
JPH03187122A (en) * 1989-11-30 1991-08-15 Thomson Consumer Electron Inc Molding of shrinkage-adhesion type implosion-proof band
JP2008531998A (en) * 2005-02-24 2008-08-14 キストラー ホールディング アクチエンゲゼルシャフト Piezoelectric force sensor parts or piezoelectric pressure sensor parts held by an electrical insulating film

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4898024A (en) * 1987-05-22 1990-02-06 Nissan Motor Co., Ltd. Piezoelectric pressure measuring instrument
JPH03187122A (en) * 1989-11-30 1991-08-15 Thomson Consumer Electron Inc Molding of shrinkage-adhesion type implosion-proof band
JP2008531998A (en) * 2005-02-24 2008-08-14 キストラー ホールディング アクチエンゲゼルシャフト Piezoelectric force sensor parts or piezoelectric pressure sensor parts held by an electrical insulating film
JP4903165B2 (en) * 2005-02-24 2012-03-28 キストラー ホールディング アクチエンゲゼルシャフト Piezoelectric force sensor parts or piezoelectric pressure sensor parts held by an electrical insulating film

Also Published As

Publication number Publication date
JPH0358132B2 (en) 1991-09-04

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