JPS6358734A - Manufacture of bent bulb shaped fluorescent lamp - Google Patents

Manufacture of bent bulb shaped fluorescent lamp

Info

Publication number
JPS6358734A
JPS6358734A JP61202063A JP20206386A JPS6358734A JP S6358734 A JPS6358734 A JP S6358734A JP 61202063 A JP61202063 A JP 61202063A JP 20206386 A JP20206386 A JP 20206386A JP S6358734 A JPS6358734 A JP S6358734A
Authority
JP
Japan
Prior art keywords
glass bulbs
glass
fused
bulbs
shape
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
Application number
JP61202063A
Other languages
Japanese (ja)
Inventor
Yoichi Iwasaki
洋一 岩崎
Takeshi Moriwaki
健 森脇
Hisao Hosoya
細谷 久雄
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 JP61202063A priority Critical patent/JPS6358734A/en
Priority to KR1019870009423A priority patent/KR910001158B1/en
Publication of JPS6358734A publication Critical patent/JPS6358734A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus 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
    • H01J9/24Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/26Sealing together parts of vessels
    • H01J9/265Sealing together parts of vessels specially adapted for gas-discharge tubes or lamps
    • H01J9/266Sealing together parts of vessels specially adapted for gas-discharge tubes or lamps specially adapted for gas-discharge lamps

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To approximately uniformize film thickness of a welded part so that mechanical strength is prevented from falling, by heating and welding the extending side walls of the welded part in such a state that they are turned in the gravity direction when glass bulbs are swung to become nearly parallel to each other. CONSTITUTION:When projecting parts 4 and 4 formed on glass bulbs 1 and 1 are fused to each other, narrow sides of 8-shaped glass bulbs 1 and 1 are turned downwards. Therefore, the upper side of the fused part 6 becomes larger in film thickness than the lower side. when the glass bulbs 1 and 1 are swung in such a state, the fused part 6 are bent outside with the eccentric amount l. when the fused part 6 is bent, extension occurs caused by tension generated outside the central line of this extension. Because this extension occurs on the lower side of the side wall, where the film thickness becomes larger, the film thickness of the fused part 6 is uniformized approximately over the whole surface when the extension due to bending is generated. As a result, mechanical strength can be prevented from locally falling.

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野〉 本発明は、蛇行形成電路を有する曲管形けい光ランプの
製造方法に関する。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a method for manufacturing a curved tube-shaped fluorescent lamp having a meandering electrical path.

(従来の技術) 最近、省電力光源としてコンパクトなけい光ランプが開
発されており、このものは、例えば互いに略平行に設け
られた複数のガラスバルブを端部で導通させることによ
り、全体として1本の蛇行形の放電路を形成するととも
に、内面にけい光体被膜を設け、かつこの放電路の両端
部に放電電極を設けたものである。
(Prior Art) Recently, compact fluorescent lamps have been developed as power-saving light sources, and these lamps are made by connecting a plurality of glass bulbs, which are arranged approximately parallel to each other, at their ends, so that the lamp as a whole becomes one. A meandering discharge path is formed, a phosphor coating is provided on the inner surface, and discharge electrodes are provided at both ends of the discharge path.

第10図ないし第12図にもとづき具体例を説明すれば
、50はバルブ本体であり、2本のU字形ガラスバルブ
51.52で構成されている。これらU字形ガラスバル
ブ51と52は一方の下端部で融着部53により接続さ
れ、これにより各ガラスバルブ51゜52は相互に導通
して全体として1本の蛇行形成電路を構成している。
A specific example will be described based on FIGS. 10 to 12. Reference numeral 50 denotes a bulb body, which is composed of two U-shaped glass bulbs 51 and 52. These U-shaped glass bulbs 51 and 52 are connected at one lower end by a welded portion 53, whereby each of the glass bulbs 51 and 52 are electrically connected to each other, thereby forming one meandering electric path as a whole.

ガラスバルブ51および52のそれぞれ他端部には電極
54.54が、ステムチューブ55.55を介して封装
されている。
Electrodes 54.54 are sealed at the other ends of the glass bulbs 51 and 52 via stem tubes 55.55.

バルブ本体50の内面には図示しないけい光体被膜が形
成されており、かつバルブ本体50内には水銀と始動用
希ガスが封入されている。
A phosphor coating (not shown) is formed on the inner surface of the bulb body 50, and mercury and a starting rare gas are sealed inside the bulb body 50.

なお、バルブ本体50の一端は口金57に取着されてお
り、上記電極54.54はリードll58・・・を介し
て口金ビン59・・・に接続されている。
Note that one end of the valve body 50 is attached to a cap 57, and the electrodes 54, 54 are connected to cap bottles 59 through leads 1158.

このような構成のけい光ランプは、コンパクトであり、
高負荷、高効率形となるので省電力光源として有効であ
る。
Fluorescent lamps with this configuration are compact and
Since it is a high-load, high-efficiency type, it is effective as a power-saving light source.

ところで、このような構造のコンパクト形けい光ランプ
は、1本の長尺なガラス管を吐油してバルブ本体1を成
形することがきわめて難しく、したがって従来では、第
11図に展開して示すように、予めU字形に成形したガ
ラスバルブ51.52相互を接続することにより構成し
ている。
By the way, in a compact fluorescent lamp having such a structure, it is extremely difficult to form the bulb body 1 by discharging oil from a single long glass tube, and therefore, conventionally, it has been developed as shown in FIG. 11. It is constructed by connecting glass bulbs 51 and 52 formed in advance into a U-shape.

これらガラスバルブ5L 52の接続に際しては、融着
部53により導通させているが、!!着部53は第12
図に示すように、ガラスバルブ51.52の端部に、噴
き破りによる突出口部56.56を形成しておき、これ
ら突出口部56.56を相互に融着させることにより形
成するようになっている。
When connecting these glass bulbs 5L and 52, conduction is made through the fused portion 53, but! ! The wearing part 53 is the 12th
As shown in the figure, an ejection opening 56.56 is formed at the end of the glass bulb 51.52 by blowing, and these ejection openings 56.56 are fused together. It has become.

噴き破りによる突出口部56.56を形成するには、当
該部分をバーナ等により加熱軟化させ、ガラスバルブ5
1.52内に空気または不活性ガスを吹き込んで管内の
圧力を上昇させ、この圧力により上記軟化している箇所
を噴き破るものである。
In order to form the ejection opening portion 56.56 by blowing, the portion is heated and softened using a burner or the like, and the glass bulb 5 is heated and softened.
Air or inert gas is blown into the tube 1.52 to increase the pressure inside the tube, and this pressure blows out the softened area.

また、このように成形された突出口部56.56を相互
に!!看させるには、突出口部56.56を互いに突き
合せておき、これらをバーナにて加熱して融着させる方
法が採用されている。
Also, the protruding opening portions 56 and 56 formed in this way are mutually connected! ! In order to do this, a method is adopted in which the protruding openings 56, 56 are butted against each other and then heated with a burner to fuse them together.

ところで、この種のけい光ランプはコンパクトであるこ
とが要求されているため、それぞれ略U字形をなすガラ
スバルブは、第7図にも示すように、互いに略平行に対
面し、しかも相互に接近して接合されることが大切であ
る。
Incidentally, since this type of fluorescent lamp is required to be compact, the approximately U-shaped glass bulbs face each other approximately in parallel and are close to each other, as shown in Figure 7. It is important that the parts are joined together.

しかしながら、ガラスバルブ相互が互いに略平行に対面
し、しかも相互に接近していると、突出口部56.56
相互を融着させるためのバーナがガラスバルブ間に入り
込めないため、突出口部56.56を全周に亙り均等に
加熱することができず、クラックの発生するものが多数
出現し、歩留りが悪い不具合がある。
However, if the glass bulbs face each other substantially parallel to each other and are close to each other, the protrusion openings 56, 56
Since the burner for fusing them cannot enter between the glass bulbs, it is not possible to heat the protrusion openings 56 and 56 evenly over the entire circumference, and many cracks appear, reducing the yield. There is a bad problem.

そこで本発明者等は、突出口部相互を融着さぜるための
バーナをガラスバルブ間に確実に入り込ませて、突出口
部を全周に亙り均等に加熱することができる方法を研究
中である。
Therefore, the present inventors are currently researching a method in which a burner for fusing the ejection openings with each other can be inserted between the glass bulbs to heat the ejection openings evenly over the entire circumference. It is.

この方法は、突出口部を形成したガラスバルブ相互を、
その突出口部を対向させて互いに八字形に向かい合せ、
この状態で上記突出口部をバーナにより同時に加熱して
!!看させ、しかるのち上記八字形に対向されているガ
ラスバルブ相互を、互いに略平行となるようにスイング
させて向かい合せるようにするものである。
In this method, the glass bulbs with the protruding openings are connected to each other.
The protruding opening portions are opposed to each other in a figure eight shape,
In this state, simultaneously heat the above protrusion part with a burner! ! Then, the glass bulbs facing each other in the figure eight shape are swung so as to be substantially parallel to each other so as to face each other.

この方法によれば、ガラスバルブ相互が互いに八字形に
向かい合せられるからガラスバルブ相互間に大きな空間
ができ、したがって突出口部相互をR看させるためのバ
ーナがガラスバルブ間に容易に入り込み、突出口部を全
周に亙り均等に加熱することができる。
According to this method, since the glass bulbs face each other in a figure-eight shape, a large space is created between the glass bulbs, so that the burner for making the protrusion openings look R can easily enter between the glass bulbs, and the protrusion The mouth can be heated evenly around the entire circumference.

(発明が解決しようとする問題点) しかしながら、上記のようにガラスバルブ相互を八字形
に向かい合せ、この状態で上記突出口部をバーナにより
同時に加熱して融着させ、しかるのちガラスバルブ相互
を略平行となるようにスイングさせて向かい合せる方法
では、a!着部が曲げ変形されることになる。
(Problem to be Solved by the Invention) However, as described above, the glass bulbs are faced to each other in a figure eight shape, and in this state, the above-mentioned protruding openings are simultaneously heated and fused with a burner, and then the glass bulbs are bonded to each other. In the method of swinging them so that they are almost parallel and facing each other, a! The fitting portion will be bent and deformed.

融着部に曲げ変形が生じると、曲中心に対し外側に位置
する側壁が伸びを生じ、この伸びを発生した側壁の肉厚
が薄くなって強度的に弱くなる不具合がある。
When bending deformation occurs in the fused portion, the side wall located on the outside with respect to the center of the curve is stretched, and the wall thickness of the side wall where this stretch occurs becomes thinner, resulting in a problem that the strength becomes weaker.

本発明においては、スイングにより融着部に伸びが発生
しても融着部の肉厚が略均等になって機械的強度の低下
を防止する曲管形けい光ランプの製造方法を提供しよう
とするものである。
The present invention aims to provide a method for manufacturing a curved tube fluorescent lamp in which the thickness of the welded part becomes substantially uniform even if the welded part elongates due to swinging, thereby preventing a decrease in mechanical strength. It is something to do.

[発明の構成〕 (問題点を解決するための手段) 本発明は、突出口部相互を加熱融着させる時には、上記
八字形に対向されているガラスパルプ相互を互いに略平
行となるようにスイングさせる際にm着部の伸びる側と
なる側壁を重力の方向、すなわち下方に向けた姿勢で加
熱融着することを特徴とする。
[Structure of the Invention] (Means for Solving the Problems) The present invention involves swinging the glass pulps facing each other in the figure eight shape so that they are substantially parallel to each other when heat-sealing the ejection openings to each other. When this is done, the side wall on which the m attachment part extends is heated and fused in a posture facing downward, in the direction of gravity.

(作用ン このような方法によると、突出口部相互を加熱融着させ
る時には溶融されたガラスが重力により下側に流れて下
側の側壁が厚内となり、ガラスパルプ相互を略平行とな
るようにスイングさせて向かい合せる際に融着部が曲げ
変形されると、上記厚内となっているm壁が伸ばされる
ため、融着部は略均等な肉厚になる。
(According to this method, when the ejection openings are heated and fused together, the molten glass flows downward due to gravity, making the lower side wall thicker and making the glass pulp almost parallel to each other.) When the fused portion is bent and deformed when they are swung to face each other, the m-wall that is within the above-mentioned thickness is stretched, so that the fused portion becomes approximately uniform in thickness.

(発明の実施例) 以下本発明について、第1図ないし第9図に示す一実施
例にもとづき説明する。 第1図ないし第7図はガラス
バルブの接合方法を工程順に追うて示すもので、811
1図ないし第7図のそれぞれ(a)図は斜視因、(b)
図は正面図である。
(Embodiment of the Invention) The present invention will be described below based on an embodiment shown in FIGS. 1 to 9. Figures 1 to 7 show the glass bulb bonding method step by step.
In each of Figures 1 to 7, (a) is due to perspective view, (b)
The figure is a front view.

図において1.1はガラスバルブであり、予め直管形ガ
ラスパルプをU字状に曲げ加工したものであり、一端に
、第11図および第12図に示されたように、ステム5
5を封着しであるとともに他端が閉塞されている。ステ
ム55には電極54をマウントしてあり、またこのステ
ム55には排気管2が取付けられている。そして、この
ガラスバルブ1の内面には図示しないけい光体被膜が形
成されている。
In the figure, 1.1 is a glass bulb, which is made by bending straight glass pulp into a U-shape in advance, and has a stem 5 at one end, as shown in FIGS. 11 and 12.
5 is sealed and the other end is closed. An electrode 54 is mounted on the stem 55, and an exhaust pipe 2 is attached to the stem 55. A phosphor coating (not shown) is formed on the inner surface of the glass bulb 1.

予め上記のように構成されたガラスバルブ1゜1は、第
1図に示すように封止端部が横向きとなる略水平な姿勢
で支持される。この場合、ガラスバルブ1,1は、第1
図(b)に示すように各ガラスバルブ1.1のU字形の
曲中心線を通る平面が、相互に逆ハ字形となるように対
向される。なお、この逆ハ字形は、ステム55を封着し
てない他端閉塞端部側が互いに近づきかつ下側に位置す
る姿勢である。
The glass bulb 1.degree. 1, configured in advance as described above, is supported in a substantially horizontal position with the sealed end facing sideways, as shown in FIG. In this case, the glass bulbs 1, 1 are
As shown in Figure (b), the planes passing through the center line of the U-shape of each glass bulb 1.1 are opposed to each other so as to form an inverted V-shape. Note that this inverted V-shape is a posture in which the other closed end portions to which the stem 55 is not sealed are close to each other and located on the lower side.

このようなガラスバルブ1.1間には、第2図に示すよ
うに、噴き破り用バーナ3が進入され、この噴き破り用
バーナ3にて各ガラスバルブ1゜1の噴き破り予定部、
つまり閉塞端部の側壁を加熱する。この時、それぞれの
ガラスバルブ1,1内には、排気管2,2を通じて空気
または不活性ガスを噴き込み、バルブ1,1内の圧力を
上昇させる。
As shown in FIG. 2, a blowout burner 3 is inserted between the glass bulbs 1.1, and the blowout burner 3 blows out the planned blowout portion of each glass bulb 1.1.
In other words, the side wall of the closed end is heated. At this time, air or inert gas is injected into the glass bulbs 1, 1 through the exhaust pipes 2, 2 to increase the pressure inside the bulbs 1, 1.

噴き破り用バーナ3にて加熱されている箇所が軟化する
と、内部の圧力にて押されてこの部分が脹らみ、しかる
後噴き破られる。このため、この噴き破り箇所には、第
3図に示すように、外側に突出する突出口部4.4が形
成される。
When the area heated by the blowout burner 3 becomes soft, it is pushed by internal pressure and swells, and is then blown out. Therefore, as shown in FIG. 3, an outwardly projecting opening 4.4 is formed at this blowout location.

この後、ガラスバルブ1.1を逆ハ字形のままで相互に
近づけ、突出口部4.4をを第4図のように接融させる
Thereafter, the glass bulbs 1.1 are brought close to each other while maintaining the inverted V-shape, and the protruding openings 4.4 are welded as shown in FIG.

この状態で第5図に示すように、ガラスバルブ1.1間
に融着用バーナ5を進入させ、突き合わされている突出
口部4.4の接触部を加熱する。
In this state, as shown in FIG. 5, a welding burner 5 is introduced between the glass bulbs 1.1 to heat the contact portions of the abutted protrusion openings 4.4.

この場合、ガラスバルブ1,1は逆ハ字形の姿勢で対向
しているから、第5図<b)に示す通り、ガラスバルブ
1.1間に@着用バーナ5を位置させることができる。
In this case, since the glass bulbs 1, 1 face each other in an inverted V-shape, the donning burner 5 can be positioned between the glass bulbs 1.1, as shown in FIG. 5<b>.

融着用バーナ5は、衝合されている突出口部4.4の周
囲に放射状に配置され、したがって突出口部4.4の周
囲を均等に加熱することができ、加熱むらによる1!i
不良やクラックの発生を防止することができる。
The welding burners 5 are arranged radially around the abutted outlet 4.4 and can therefore heat the circumference of the outlet 4.4 evenly, avoiding 1! due to uneven heating. i
It is possible to prevent defects and cracks from occurring.

このとき、各ガラスバルブ1,1のU字形の曲中心線を
通る平面が、相互に逆八字形となるように対向され、し
かもこの逆ハ字形は、ステム55を封着してない他端閉
塞端部側が互いに近づきかつ下側に位置する姿勢である
ことが大切である。
At this time, the planes passing through the center lines of the U-shaped curves of the respective glass bulbs 1, 1 are opposed to each other so as to form an inverted eight shape, and this inverted V shape is formed at the other end where the stem 55 is not sealed. It is important that the closed end sides are close to each other and positioned on the lower side.

突出口部4.4の加熱軟化が進むと、ガラスバルブ1.
1を相対的に複数回、第5図に示すように、若干量接離
させる。このことにより突出口部4.4相互の溶融ガラ
スの馴染みをよくし、これにより突出口部4.4相互を
融着させる。
As the protrusion opening portion 4.4 is heated and softened, the glass bulb 1.
1 are relatively brought into contact and separated several times by a certain amount, as shown in FIG. This improves the compatibility of the molten glass between the protruding openings 4.4, thereby allowing the protruding openings 4.4 to be fused together.

これにより両ガラスバルブ1.1は、融着部6を通じて
相互が導通され、かつ改械的に接合される。
As a result, both glass bulbs 1.1 are electrically connected to each other through the fused portion 6 and are mechanically joined.

この後、この融着部6が未だ軟化している時に、ガラス
バルブ1.1を第7図の矢印A、B方向へスイングさせ
る。
Thereafter, while the fused portion 6 is still softened, the glass bulb 1.1 is swung in the direction of arrows A and B in FIG.

この時のガラスバルブ1.1のスイング中心は、第7図
にOloとして示され、このスイングによってガラスバ
ルブ1.1のU字形の曲中心線を通る平面が互いに略平
行となるように対面される。
The swing center of the glass bulb 1.1 at this time is shown as Olo in FIG. Ru.

このようなガラスバルブ1,1のスイングは、前記融着
部6を(q心ltλたけ外側に偏心させつつ曲げを与え
る。この時、ガラスバルブ1.1内の圧力を若干上げて
おけば、11部6が太くなり、1!i!空間として好都
合になる。
Such swinging of the glass bulbs 1.1 bends the fused portion 6 while eccentrically outward by (q center ltλ).At this time, if the pressure inside the glass bulb 1.1 is slightly increased, 11 part 6 becomes thicker and becomes convenient as 1!i! space.

このような方法によれば、第6図に示すように、ガラス
バルブ1.1に形成した突出口部4.4相互をrlli
tする時、八字形をなすガラスバルブ1゜1の狭小側が
下向きとなっているため、融着時6の肉厚は第8図のよ
うになる。すなわち、ガラスが溶融されると重力により
流れを生じ、上側に比べて下側の肉厚が大きくなる。
According to such a method, as shown in FIG.
t, the narrow side of the eight-shaped glass bulb 1°1 faces downward, so the wall thickness of the glass bulb 6 when fused is as shown in FIG. 8. That is, when the glass is melted, a flow is generated due to gravity, and the thickness of the lower side becomes larger than that of the upper side.

このような状態で第7図に示すようにガラスバルブ1.
1をスイングさせると、!!着郡部6偏心m℃だけ外側
に偏心されつつ曲げが与えられる。
In this state, as shown in FIG. 7, the glass bulb 1.
When you swing 1,! ! The landing portion 6 is eccentrically outwardly bent by an amount of eccentricity m°C.

融着部6が曲げられる時にその曲げ中心線より外側には
引張りが発生するため伸びが生じる。
When the fused portion 6 is bent, tension is generated on the outside of the bending center line, resulting in elongation.

この伸びが発生する側は、第8図に示した肉厚となって
いる下側の側壁であり、したがって、上記面げによる伸
びが発生した場合には第9図に示すように、融着部6の
肉厚は全体に亙り略均等な肉厚となる。
The side where this elongation occurs is the lower side wall, which has the wall thickness shown in Figure 8. Therefore, if the elongation due to the above-mentioned surface bulging occurs, the fusion bond will occur as shown in Figure 9. The wall thickness of the portion 6 is substantially uniform throughout.

この結果、局部的な機械的強度の低下を防止することが
でき、かつ上記スイング時に融着部6に破れを発生させ
たり、冷却時に熱歪みによるクラックを発生さぜること
もない。
As a result, it is possible to prevent a local decrease in mechanical strength, and there is no possibility that the welded portion 6 will break during the swing or that cracks will occur due to thermal strain during cooling.

なお、上記実施例では、ガラスバルブが予め略U字形に
形成されているものについて説明したが、本発明は略直
線形をなす2本のガラスチューブを、その一端側で!!
着させて略H字形に成形したのガラスバルブ同志を接合
する場合、または直線形をなす2本のガラスチューブ相
互を接合する場合などにも実施可能である。
In addition, in the above embodiment, the glass bulb was previously formed into a substantially U-shape, but the present invention uses two substantially straight glass tubes at one end. !
This method can also be used when bonding glass bulbs formed into a substantially H-shape together, or when bonding two linear glass tubes together.

また、ガラスバルブ1.1を八字形に対向させる必要が
あるのは突出口部4.4の融着時であり、それまでの工
程では必ずしも両ガラスバルブ1゜1を八字形に対向さ
せる必要はない。
In addition, it is necessary to make the glass bulbs 1.1 face each other in a figure-eight shape when fusing the protrusion opening 4.4, and in the processes up to that point, it is not always necessary to make both glass bulbs 1.1 face each other in a figure-eight shape. There isn't.

そしてまた、第8図のような肉厚部を作るため曲げの伸
び側となる側壁を下向きにするのは突出口部4.4の融
着時だけであってよく、その他の工程ではバルブの向き
に制約されるものではない。
Furthermore, in order to create a thick wall part as shown in Fig. 8, the side wall on the extension side of the bend may be turned downward only when welding the protruding opening part 4.4, and in other processes, It is not restricted by direction.

さらに、突出口部4.4を融着させる場合、これらの馴
染みが良い場合には、必ずしもガラスバルブ1.1相互
を接離移動させる必要はなく、第5図の工程を省略する
こともできる。
Furthermore, when the protrusion openings 4.4 are fused together, it is not necessarily necessary to move the glass bulbs 1.1 toward and away from each other, and the process shown in FIG. 5 can be omitted if they fit well. .

さらに、ガラスバルブ1.1を八字形に対向させる場合
、両ガラスバルブ1.1のなす角度は回者用バーナの大
きさに応じて適宜選択すればよい。
Furthermore, when the glass bulbs 1.1 are arranged to face each other in a figure-eight shape, the angle formed by both glass bulbs 1.1 may be appropriately selected depending on the size of the rotary burner.

[発明の効果] 以上説明したように本発明の方法によれば、突出口部相
互を加熱融着させる時、八字形に対向されているガラス
バルブ相互を互いに略平行となるようにスイングさせる
際にF&管部の伸びる側となる側壁を重力の方向、すな
わち下方に向けた姿勢で加熱融着するから、溶融された
ガラスが重力により下側に流れて下側の[が厚肉となり
、ガラスバルブ相互を略平行となるようにスイングさせ
て向かい合せる際にこの融着部が曲げ変形されると、上
記厚肉となっている側壁が伸ばされることになるから、
a!着部は略均等な肉厚になる。このため、融着部の機
械的強度が均等になり、また破れやクランクが防止され
、歩留りの向上も可能になる。
[Effects of the Invention] As explained above, according to the method of the present invention, when the protruding opening portions are heated and fused together, when the glass bulbs facing each other in a figure eight shape are swung so that they are substantially parallel to each other, Since the side wall, which is the extending side of the F & tube section, is heated and fused in the direction of gravity, that is, in a downward posture, the molten glass flows downward due to gravity, and the lower side becomes thicker, and the glass becomes thicker. When this fused portion is bent and deformed when the bulbs are swung so that they are substantially parallel to each other and face each other, the thick side wall is stretched.
a! The thickness of the cloth part is approximately equal. Therefore, the mechanical strength of the fused portion becomes uniform, tearing and cranking are prevented, and the yield can be improved.

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

第1図ないし第9図は本発明の−の実線例を示し、第1
図ないし第7図は製造方法を工程順に示す説明図で、そ
れぞれ(a)図は斜視図、(b)図は正面図、第8図は
第6図(b)中■−■線の断面図、第9図は第7図(b
)中IX −IX線の断面図である。第10図ないし第
12図は従来の技術を説明するための図である。 1・・・・・・ガラスバルブ、2・・・排気管、3・・
・噴き破り用バーナ、4・・・噴き破り突出口部、5・
・・融着要バーナ、6・・・融着部。 出願人代理人 弁理士 鈴江武彦 第1図         第2図 <1)) 第3図      @4図
1 to 9 show solid line examples of the present invention.
Figures 7 through 7 are explanatory diagrams showing the manufacturing method in the order of steps, respectively: (a) is a perspective view, (b) is a front view, and Figure 8 is a cross section taken along the line ■-■ in Figure 6(b). Figures 9 and 7 (b)
) is a sectional view taken along line IX-IX in FIG. FIGS. 10 to 12 are diagrams for explaining the conventional technology. 1...Glass bulb, 2...Exhaust pipe, 3...
・Blowout burner, 4...Blowout protrusion, 5.
... Burner required for fusion, 6... Fusion part. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2 <1)) Figure 3 @ Figure 4

Claims (2)

【特許請求の範囲】[Claims] (1)ガラスバルブの端部側の側壁を加熱軟化して噴き
破ることにより突出口部を形成し、上記突出口部を形成
したガラスバルブ相互を、その突出口部を対向させて互
いにハ字形に向かい合せ、この状態で上記突出口部をバ
ーナにより同時に加熱して融着させ、しかるのち上記ハ
字形に対向されているガラスバルブ相互を、互いに略平
行となるようにスイングさせて向かい合せるようにした
曲管形けい光ランプの製造方法において、上記突出口部
相互を加熱融着させる時には、上記ハ字形に対向されて
いるガラスバルブ相互を互いに略平行となるようにスイ
ングさせる際に融着部の伸びる側となる側壁を重力の方
向に向けた姿勢で加熱融着することを特徴とする曲管形
けい光ランプの製造方法。
(1) A protruding port is formed by heating and softening the side wall on the end side of the glass bulb and blowing it out, and the glass bulbs with the protruding port formed therein are placed in a V-shape with their protruding ports facing each other. In this state, the projecting openings are simultaneously heated and fused by a burner, and then the glass bulbs facing each other in the V shape are swung so as to be substantially parallel to each other so as to face each other. In the method for manufacturing a curved fluorescent lamp, when the protruding openings are heated and fused together, the glass bulbs facing each other in a V-shape are fused while swinging them so that they are substantially parallel to each other. A method for manufacturing a curved tube fluorescent lamp, characterized in that the side wall, which is the extending side of the tube, is heated and fused in a position facing the direction of gravity.
(2)上記突出口部相互を融着させる時、ガラスバルブ
相互を若干接離移動させることを特徴とする特許請求の
範囲第1項記載の曲管形けい光ランプの製造方法。
(2) The method for manufacturing a curved tube-shaped fluorescent lamp according to claim 1, wherein the glass bulbs are slightly moved toward and away from each other when the projecting openings are fused together.
JP61202063A 1986-08-28 1986-08-28 Manufacture of bent bulb shaped fluorescent lamp Pending JPS6358734A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP61202063A JPS6358734A (en) 1986-08-28 1986-08-28 Manufacture of bent bulb shaped fluorescent lamp
KR1019870009423A KR910001158B1 (en) 1986-08-28 1987-08-27 Manufacturing methode of curved-type fluorescent lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61202063A JPS6358734A (en) 1986-08-28 1986-08-28 Manufacture of bent bulb shaped fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS6358734A true JPS6358734A (en) 1988-03-14

Family

ID=16451329

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61202063A Pending JPS6358734A (en) 1986-08-28 1986-08-28 Manufacture of bent bulb shaped fluorescent lamp

Country Status (2)

Country Link
JP (1) JPS6358734A (en)
KR (1) KR910001158B1 (en)

Also Published As

Publication number Publication date
KR880003372A (en) 1988-05-16
KR910001158B1 (en) 1991-02-25

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