JPH0366776B2 - - Google Patents
Info
- Publication number
- JPH0366776B2 JPH0366776B2 JP8488282A JP8488282A JPH0366776B2 JP H0366776 B2 JPH0366776 B2 JP H0366776B2 JP 8488282 A JP8488282 A JP 8488282A JP 8488282 A JP8488282 A JP 8488282A JP H0366776 B2 JPH0366776 B2 JP H0366776B2
- Authority
- JP
- Japan
- Prior art keywords
- stem
- lead
- wire
- implanted
- protrusion
- 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
Links
- 238000007789 sealing Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/90—Leading-in arrangements; Seals therefor
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Description
【発明の詳細な説明】
本発明は、陰極線管用ステムの形状の改良に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the shape of a stem for a cathode ray tube.
従来の陰極線管用ステムは、第１図に示すよう
にステム本体１、ステム本体１に植設された導入
線２、排気管３からなる。導入線２は内側導入線
２ａと外側導入線２ｂとから成り、第１図ａに示
す如くステムの軸を中心とする円周上に、ほぼ等
間隔にステム本体１とステム本体１に突出形成さ
れた突起部４に植設されている。さらに、導入線
が植設されないステム本体の部分には、ステム製
作時のガラス肉厚や形状のバランスを維持するた
めに、導入線２を植設された突起部４と同一円周
上に、同一間隔に突起部４ａが形成されている。 As shown in FIG. 1, a conventional cathode ray tube stem includes a stem body 1, an inlet wire 2 implanted in the stem body 1, and an exhaust pipe 3. The lead-in wire 2 consists of an inner lead-in wire 2a and an outer lead-in wire 2b, and as shown in FIG. It is implanted in the protrusion 4 that has been formed. Furthermore, in the part of the stem body where the lead-in wire 2 is not implanted, in order to maintain the balance of glass thickness and shape during stem manufacture, the lead-in wire 2 is placed on the same circumference as the protrusion 4 where the lead-in wire 2 is implanted. Projections 4a are formed at equal intervals.
このように構成されたステムにおいて、導入線
が植設された突起部４を通る断面形状は、第２図
ａに示すようにステム本体１の側方に突出された
フレヤ部５の形状がその上面平坦部６が一定の長
さを有するのに対して、導入線の植設されない突
起部４ａを通る断面形状は、第２図ｂに示すよう
にフレヤ部５ａの上面平坦部６ａが短かくなつて
いる。 In the stem configured in this way, the cross-sectional shape passing through the protrusion 4 in which the lead-in wire is implanted is such that the shape of the flared portion 5 protruding to the side of the stem body 1 is the same as shown in FIG. 2a. While the flat top portion 6 has a certain length, the flat top portion 6a of the flared portion 5a has a short cross-sectional shape passing through the protrusion 4a where the lead-in wire is not implanted, as shown in FIG. 2b. It's summery.
この理由は、ステム製作時、バーナにて溶融成
形する工程において、導入線が植設されない部分
は、他の部分より熱容量が小さく、かつ導入線が
ないために、他の部分より熱伝導による熱の逃げ
が少ないため、温度上昇が大きく、この部分がよ
く溶融されて形成がくずれやすくなることによる
と考えられている。 The reason for this is that during the process of melting and molding with a burner when manufacturing the stem, the part where the lead-in wire is not implanted has a smaller heat capacity than other parts, and because there is no lead-in wire, heat is generated by heat conduction more than other parts. It is thought that this is due to the fact that the temperature rise is large because there is little escape, and this part is well melted, making the formation easier to collapse.
このように形成されたステムを陰極線管、例え
ばカラーブラウン管のネツク管に封着した場合、
第３図に示すような形状となる。導入線が植設さ
れた突起部４がある部分は第４図ａに示すように
ネツク管壁７と突起部４とは一定間隔ｌをもつて
封着され、熱的衝撃や機械的衝撃が加つてもクラ
ツクすることがない。一方、導入線を植設されて
ない突起部４ａがある部分は第４図ｂに示すよう
に、ネツク管壁７と突起部４ａとは、それらの封
着部にＶ形溝８を形成する場合が多く、熱的また
は機械的衝撃が加つた場合、Ｖ形溝８の頂点を起
点としたクラツクが起こる危険性があつた。 When the stem formed in this way is sealed to a cathode ray tube, for example, a color cathode ray tube,
The shape will be as shown in FIG. As shown in FIG. 4a, in the area where the protrusion 4 in which the lead-in wire is installed is located, the neck tube wall 7 and the protrusion 4 are sealed with a constant distance l, so that thermal shock and mechanical shock are prevented. It will not crack even if it is added. On the other hand, as shown in FIG. 4B, in the area where the protrusion 4a is located where the lead-in wire is not installed, the neck tube wall 7 and the protrusion 4a form a V-shaped groove 8 in their sealing area. In many cases, when a thermal or mechanical shock is applied, there is a risk that a crack will occur starting from the apex of the V-shaped groove 8.
本発明は、上記問題を除去せんとするもので、
その目的とするところは、ステムを陰極線管のネ
ツク管部に封着したときの封着部の熱的機械的強
度のすぐれた陰極線管用ステムを提供することに
ある。 The present invention aims to eliminate the above problem,
The purpose is to provide a stem for a cathode ray tube that has excellent thermal and mechanical strength at the sealed portion when the stem is sealed to the neck tube portion of the cathode ray tube.
上記目的のために、本発明はステムの導入線が
植設されない突起部の位置を導入線が植設された
突起部のサークルより、ステムの軸の方向に入れ
ることによつて、ステム本体のフレヤ部上面平坦
部を広くし、ネツク管との封着において、突起部
とネツク管壁とのＶ形溝形成を除去しようとする
ものである。 To achieve the above purpose, the present invention provides a structure in which the protrusion of the stem where the lead-in wire is not implanted is placed in the direction of the axis of the stem from the circle of the protrusion where the lead-in wire is implanted. This is intended to widen the flat upper surface of the flare portion and eliminate the V-shaped groove formation between the protrusion and the neck tube wall in sealing with the neck tube.
以下、本発明の一実施例を図面により説明す
る。第５図は、本発明による陰極線管用ステムの
一実施例を示す平面図で、ステム本体９には所定
数の導入線１０が植設される部分にそれぞれ突起
部１１が形成され、導入線が植設されない部分に
上記突起部１１と同一間隔で突起部１１ａが形成
されている。導入線を植設されない突起部１１ａ
のステムの軸と逆方向の端部とステム本体フレヤ
部１２の先端との距離ａは、導入線１０を植設さ
れた突起部１１のステムの軸と逆方向の端部とス
テム本体フレヤ部１２の先端との距離ｂより大き
くしてある。ここで、望ましくは、ａはｂの1.5
倍以上必要である。第６図は、第５図のＡ−Ａ断
面を示すもので、一点鎖線は、導入線が植設され
た突起部と同一位置に置かれた場合を示し、実線
は本発明によりなる突起部１１ａの位置を示す。
本発明によれば、ステム本体フレヤ部１２の上面
平坦部距離ｃは、従来方式の場合の距離ｄより大
きくできる。 An embodiment of the present invention will be described below with reference to the drawings. FIG. 5 is a plan view showing an embodiment of the stem for a cathode ray tube according to the present invention, in which a protrusion 11 is formed in each of the parts of the stem body 9 where a predetermined number of lead-in wires 10 are implanted, and the lead-in wires are Projections 11a are formed at the same intervals as the projections 11 in the non-planted portions. Projection 11a where no lead-in wire is installed
The distance a between the end of the stem in the direction opposite to the axis of the stem and the tip of the stem body flared portion 12 is the distance a between the end of the protrusion 11 in which the lead-in wire 10 is implanted in the direction opposite to the stem axis and the stem body flared portion. The distance b from the tip of 12 is made larger than the distance b. Here, preferably a is 1.5 of b
More than twice as much is required. FIG. 6 shows a cross section taken along the line A-A in FIG. 5, where the dashed dot line shows the case where the lead-in wire is placed at the same position as the implanted protrusion, and the solid line shows the protrusion according to the present invention. 11a is shown.
According to the present invention, the distance c of the upper surface flat portion of the stem main body flare portion 12 can be made larger than the distance d in the conventional system.
このようにしてなるステムを、陰極線管のネツ
ク管部に封着した場合、第７図に示すように、導
入線を植設されない突起部１１ａがある部分にお
いても、突起部１１ａとネツク管壁７は一定の間
隔を有し、Ｖ形溝を形成することはない。 When the stem formed in this way is sealed to the neck tube part of a cathode ray tube, as shown in FIG. 7 have constant spacing and do not form V-shaped grooves.
このように本発明によれば、導入線が植設され
ない突起部のあるステム本体フレヤ部上面平坦部
を広くできるので、ネツク管との封着において、
上記突起部とネツク管壁との間に一定の間隔を確
保でき、封止部の熱的、機械的強度を向上させる
ことができる。 As described above, according to the present invention, since the flat part of the upper surface of the stem main body flare part where the protrusion where the lead-in wire is not implanted can be widened, it is possible to widen the flat part of the upper surface of the stem main body flare part where the lead-in wire is not implanted.
A certain distance can be secured between the protrusion and the neck tube wall, and the thermal and mechanical strength of the sealing part can be improved.
第１図ａは従来の陰極線管用ステムの平面図、
第１図ｂはその正面図、第２図ａは第１図のＡ−
Ａ線断面図、第２図ｂは同じくＢ−Ｂ線断面図、
第３図は従来の陰極線管用ステムの封着部断面
図、第４図ａおよびｂは第３図の要部拡大図、第
５図は本発明によるステムの一実施例の平面図、
第６図は第５図のＡ−Ａ線断面図、第７図は本発
明によるステムの封着部断面図である。
７……ネツク管壁、９……ステム本体、１０…
…導入線、１１……導入線が植設されている突起
部、１１ａ……導入線が植設されていない突起
部、１２……ステム本体フレヤ部。
Figure 1a is a plan view of a conventional cathode ray tube stem;
Figure 1b is its front view, Figure 2a is A- of Figure 1.
A sectional view taken along line A, FIG. 2b is also a sectional view taken along line B-B,
3 is a sectional view of the sealed portion of a conventional stem for a cathode ray tube, FIGS. 4a and 4b are enlarged views of the main parts of FIG. 3, and FIG. 5 is a plan view of an embodiment of the stem according to the present invention.
6 is a sectional view taken along the line A--A in FIG. 5, and FIG. 7 is a sectional view of the sealed portion of the stem according to the present invention. 7...Netsuku tube wall, 9...Stem body, 10...
. . . Lead-in wire, 11 . . . Projection portion on which the lead-in wire is implanted, 11 a .
Claims (1)
突起部と、導入線が植設されない複数個の突起部
とを有し、前記導入線が植設されない突起部のス
テムの軸と逆方向の端部を、前記導入線が植設さ
れた突起部のステムの軸と逆方向の端部により形
成されるサークルよりステムの軸方向に位置させ
たことを特徴とする陰極線管用ステム。1 The stem body has a plurality of protrusions on which lead-in wires are implanted and a plurality of protrusions on which lead-in wires are not implanted, and the protrusions on which lead-in wires are not implanted are opposite to the axis of the stem. A stem for a cathode ray tube, characterized in that an end in the direction opposite to the axis of the stem is located in the axial direction of a circle formed by an end in a direction opposite to the axis of the stem of the protrusion in which the lead-in wire is implanted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8488282A JPS58204449A (en) | 1982-05-21 | 1982-05-21 | Stem for cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8488282A JPS58204449A (en) | 1982-05-21 | 1982-05-21 | Stem for cathode-ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58204449A JPS58204449A (en) | 1983-11-29 |
| JPH0366776B2 true JPH0366776B2 (en) | 1991-10-18 |
Family
ID=13843133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8488282A Granted JPS58204449A (en) | 1982-05-21 | 1982-05-21 | Stem for cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58204449A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62144055U (en) * | 1986-03-06 | 1987-09-11 |
-
1982
- 1982-05-21 JP JP8488282A patent/JPS58204449A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58204449A (en) | 1983-11-29 |
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