JPH01117236A - Manufacture of fluorescent lamp - Google Patents
Manufacture of fluorescent lampInfo
- Publication number
- JPH01117236A JPH01117236A JP27306987A JP27306987A JPH01117236A JP H01117236 A JPH01117236 A JP H01117236A JP 27306987 A JP27306987 A JP 27306987A JP 27306987 A JP27306987 A JP 27306987A JP H01117236 A JPH01117236 A JP H01117236A
- Authority
- JP
- Japan
- Prior art keywords
- bulb
- manufacturing
- fluorescent lamp
- lamp according
- open
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000725 suspension Substances 0.000 claims abstract description 19
- 239000011521 glass Substances 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 27
- 238000004891 communication Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000000071 blow moulding Methods 0.000 claims description 2
- 238000007664 blowing Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 6
- 238000000576 coating method Methods 0.000 abstract description 6
- 239000012528 membrane Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 6
- 230000002441 reversible effect Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910000497 Amalgam Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は製造が容易で破損のおそれのない屈曲形放電路
を有する蛍光ランプの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for manufacturing a fluorescent lamp having a curved discharge path that is easy to manufacture and is free from damage.
（従来の技術）
屈曲形放電路を有する蛍光ランプにはＭ字形、ダブルＨ
字形など、種々の形式のものが知られている。しかして
、たとえばＨ字形蛍光ランプについて、従来の製造方法
の１例を概説すれば、内面に蛍光膜を形成し、両端を閉
塞した２個の直管形バルブ素体を並置し、中間部を局部
加熱して外側に吹き破ってカラー付き透孔を形成し、つ
いで。(Prior art) Fluorescent lamps with curved discharge paths include M-shaped and double H-shaped fluorescent lamps.
Various forms such as character shapes are known. For example, an example of a conventional manufacturing method for an H-shaped fluorescent lamp is to form a fluorescent film on the inner surface, juxtapose two straight bulb bodies with both ends closed, and Locally heated and blown outward to form a collared through hole, then.
このカラー相互を接続してＨ字形に連続した放電路を形
成する方法が特開昭５５−１３３７３０号公報ならびに
特開昭６０−１２４３４５号公報に記載されている。A method of connecting the collars to form a continuous H-shaped discharge path is described in JP-A-55-133730 and JP-A-60-124345.
この技術は内面に蛍光膜を形成し両端を閉塞した４本の
直管形バルブ素体を連結してＭ字形あるいはダブルＨ字
形の蛍光ランプを製造する方法にも適用できる。しかし
ながら、この製造方法では、両ガラス素体を連結すると
き、溶融したガラス内に蛍光体粒子が埋込まれることが
避けられず、この場合、連結部内に強い歪みが生じ、熱
的あるいは機械的な衝撃によって破壊されやすい欠点が
ある。This technique can also be applied to a method of manufacturing an M-shaped or double H-shaped fluorescent lamp by connecting four straight tube bulb bodies with a fluorescent film formed on their inner surfaces and closed at both ends. However, with this manufacturing method, when connecting both glass bodies, it is unavoidable that phosphor particles are embedded in the molten glass, and in this case, strong distortion occurs in the connecting part, causing thermal or mechanical The disadvantage is that it is easily destroyed by shock.
これに対し、互いに並置された３個以上の直管部を有し
各直管部の同方向の端部が開口するとともに他端が閉塞
しかつ各直管部の内部が連通されて１本の放電路を形成
したガラスバルブを製作し。On the other hand, it has three or more straight pipe parts arranged in parallel with each other, each end of which is open in the same direction, the other end is closed, and the inside of each straight pipe part is communicated with each other to form a single pipe. A glass bulb with a discharge path formed therein was manufactured.
このバルブの内面に蛍光体けん濁液を塗布したのち余剰
液を全開口端から排出し、焼成して蛍光膜に形成したの
ち、全開口端に対応した封着部を有し、かつ両端の開口
に対応した封着部にフィラメントを装着した共通の閉塞
体で、総ての開口端を同時に封止する技術が開発され、
特開昭６０−１７２１５８号公報に記載された。この技
術によって得られた屈曲形蛍光ランプはバルブの一方の
端面が共通の基体によって結合されて補強されているの
で機械的に丈夫である。After applying a phosphor suspension to the inner surface of this bulb, the excess liquid is drained from the fully open end, and after being baked to form a fluorescent film, it has a sealing part corresponding to the fully open end, and has a sealing part corresponding to the fully open end. A technology has been developed to simultaneously seal all open ends using a common closure body with a filament attached to the sealing part corresponding to the opening.
It was described in JP-A-60-172158. The bent fluorescent lamp obtained by this technique is mechanically strong because one end face of the bulb is joined and reinforced by a common base.
（発明が解決しようとする問題点）
上記特開昭６０−１７２１５８号公報記載の技術はバル
ブ素体を連結して連通した放電路を形成したのちにおい
て蛍光体けん濁液を塗布し、焼成して蛍光膜に形成する
ので、わん曲部や連結部などの連通部に蛍光体粒子が埋
込まれるおそれがないが、その反面、排気その他の加熱
工程において、バルブと基体との熱膨張率の差、あるい
は加熱および冷却過程におけるわん曲部や連結部を軸と
する可逆的熱変形などの理由によって連通部に強い歪み
を生じ、このため製作途中で連通部が破壊されやすい欠
点がある。また、バルブと基体との接合部にリークを生
じる不良が発生しやすい。(Problems to be Solved by the Invention) The technique described in JP-A-60-172158 involves connecting the bulb bodies to form a communicating discharge path, then applying a phosphor suspension and firing. Since the phosphor film is formed on the phosphor film, there is no risk of phosphor particles being embedded in communicating parts such as curved parts or connecting parts. There is a disadvantage that strong distortion occurs in the communication part due to the difference in temperature or due to reversible thermal deformation around the curved part or connection part during the heating and cooling process, and therefore the communication part is easily destroyed during the manufacturing process. Further, defects that cause leaks are likely to occur at the joint between the valve and the base body.
（問題点を解決するための手段）
本発明は屈曲した放電路を有する蛍光ランプの製造方法
において、互いに並置された３個以上の直管部を有し各
直管部が開口するとともに他端が閉塞しかつ各直管部の
内部が連通されて１本の放電路を形成したガラスバルブ
の内面に蛍光体けん封止することによって、温度変化に
よって破壊されるものが少なく、かつ熱的、機械的な衝
撃に強いランプを製造できる。(Means for Solving the Problems) The present invention provides a method for manufacturing a fluorescent lamp having a curved discharge path, which includes three or more straight tube portions arranged in parallel with each other, each straight tube portion being open and the other end being open. By sealing the inner surface of the glass bulb with phosphor, in which the inside of each straight tube is closed and the inside of each straight tube is connected to form a single discharge path, there is less damage caused by temperature changes, and thermal It is possible to manufacture lamps that are resistant to mechanical shock.
（作 用）
バルブをわん曲や連結した後で蛍光膜を形成すればわん
曲部や連結部のガラスに蛍光体粒子を埋込まれるおそれ
がなく、また、総ての開口端をそれぞれ別部材で閉塞す
れば、バルブが製造過程あるいは点滅に際し多少の可逆
的熱変形をしても、この変形を拘束するものがないので
、自由に変形でき、破壊に至るものが格段に少なくなっ
た。(Function) If the fluorescent film is formed after the bulbs are bent or connected, there is no risk of phosphor particles being embedded in the glass of the curved or connected parts, and all open ends can be made from separate materials. If the valve is closed, even if the valve undergoes some reversible thermal deformation during the manufacturing process or during flashing, there is nothing to restrain this deformation, so it can be freely deformed, and the risk of breakage is greatly reduced.
（実施例）
本発明の詳細を実施例によって説明する。第１図ないし
第６図に本発明製造方法の第１の実施例を工程順に示す
。まず、第１図に示すように、両端（ｔｔ）、（１１）
が開口し、他端（１２） 、 （１２）がわん曲して連
通した１対のＵ字形ガラスバルブ素体（１０）。(Example) The details of the present invention will be explained by referring to an example. A first embodiment of the manufacturing method of the present invention is shown in the order of steps in FIGS. 1 to 6. First, as shown in Figure 1, both ends (tt), (11)
A pair of U-shaped glass bulb bodies (10) that are open and the other ends (12) and (12) are curved and communicated with each other.
（１０）を用意し、両開口端（１１）、（１１）が同方
向にあるように同一平面上に保持する。そうして、第２
図に示すように、両バルブ素体（１０） 、 （１０）
のそれぞれの開口端（１１）、（１１）を給気栓（２１
）および閉塞栓（２２）で閉塞し、連結予定部を局部加
熱して給気栓（２１）から空気を吹き込んで連結予定部
を外側に吹き破り、そのカラー相互を溶着して連結部（
１３）を形成し、これによって、両バルブ素体（１０）
、 （１０）を連通して連続した放電路（１４）を有
するＭ字形バルブ（１）に形成する。(10) is prepared and held on the same plane so that both open ends (11) are in the same direction. Then, the second
As shown in the figure, both valve bodies (10), (10)
The respective open ends (11), (11) of the air supply valve (21)
) and the plug (22), the planned connection part is locally heated, air is blown from the air supply tap (21), the planned connection part is blown outward, and the collars are welded together to form the connection part (
13), thereby forming both valve bodies (10).
, (10) are connected to form an M-shaped bulb (1) having a continuous discharge path (14).
そうして、第３図に示すように、開口端（１１）。Then, as shown in FIG. 3, the open end (11).
（１１）・・・が上向きになるようにバルブ（１）を保
持し、ノズル（３）から蛍光体けん濁液（４）をバルブ
（１）内に注入し、はぼ充満させる。ついで、第４図に
示すように、バルブ（１）を反転して総ての開口（ｉｔ
）。(11) Hold the bulb (1) so that it faces upward, and inject the phosphor suspension (4) into the bulb (1) from the nozzle (3) to completely fill it. Then, as shown in FIG.
).
（１１）・・・を下向きにして、内部の蛍光体けん濁液
（４）を同時に流出させる。すると、バルブ（１）の内
面すなわち放電路（１４）の壁面に蛍光体けん濁液（４
）の塗膜（４１）が形成され、かつ、余剰液（４２）は
総て排出される。(11)... is turned downward, and the phosphor suspension (4) inside is simultaneously flowed out. Then, the phosphor suspension (4
) is formed, and all excess liquid (42) is discharged.
そこで、第５図に示すように、バルブ（１）の開口端（
１１）、（１１）・・・近傍の蛍光体塗膜（４１）を除
去してから、塗膜（４１）を完全乾燥し、ついで焼成し
て蛍光膜（５）に形成する。そうして、独立の閉塞部材
としてフィラメント（６１）を有するマウントステム（
６）およびフィラメントを有しないダミーステム（７）
を用意する。Therefore, as shown in Fig. 5, the open end (
11), (11)... After removing the phosphor coating film (41) in the vicinity, the coating film (41) is completely dried and then baked to form a phosphor film (5). Then, the mounting stem (61) with the filament (61) as an independent closure member
6) and dummy stem without filament (7)
Prepare.
ついで、バルブ（１）を開口端（１１）、 （１１）・
・・を下向きに保持し、放電路（１４）の両端をなす開
口端（１１）。Then, connect the valve (1) to the open end (11), (11),
The open end (11) is held downward and forms both ends of the discharge path (14).
（１１）をマウントステム（６）で、かつ中間の開口端
（１１）、 （１１）をダミーステム（７）で同時に閉
塞し、通常の方法で排気し、始動ガスと水銀（アマルガ
ムでもよい。）を充填して封止する。すると、第６図に
示すＭ字形蛍光ランプが得られる。(11) with the mounting stem (6) and the intermediate open end (11), (11) with the dummy stem (7) at the same time, and evacuated in the usual manner to remove starting gas and mercury (amalgam may also be used). ) and seal it. Then, an M-shaped fluorescent lamp shown in FIG. 6 is obtained.
このように、本実施例製造方法においては、蛍光膜（５
）を形成する前にバルブ素体（１０）を曲成し、また連
結するので、わん曲した閉塞端（１２）や連結部（１１
）に蛍光体粒子が埋没してバルブ（１）の強度を低下さ
せることがない。また、バルブ（１）は屈曲した放電路
（１４）を有するにもかかわらず、総ての開口端（１１
）、（１１）・・・が同方向に向いているので、任意の
開口端（１１）から蛍光体けん濁液（４）を注入すれば
、連結部（１３）を通じて放電路（１４）全体に充填す
る。そうして、バルブ（１）を反転して総ての開口端（
１１）、（１１）・・・を下向きにすれば、放電路（１
４）内の蛍光体けん濁液（４）は総ての開口端から同時
に流出し、余剰液（４１）も全開口端（１１）、（１１
）・・・から同時に、かつ急速に排出される。したがっ
て、放電路（１４）の壁面に形成された塗膜は均質で均
一である。したがって、焼成して得られた蛍光膜は前述
した蛍光膜を形成してから曲成したものに比較して膜厚
が著く一様である。さらに、このように中間部をわん曲
または連結したバルブにおいては製造中における加熱冷
却の工程において、わん曲部や連結部を軸にして多少は
可逆的な熱変形をするものであるが、本実施例蛍光ラン
プの製造方法においては総ての開口端（１１）、（１１
）・・・がそれぞれ別部材であるマウントステム（６）
、（６）およびダミーステム（７）、（７）でそれぞれ
独立に閉塞されているので、上述のわん曲部や連結部が
可逆的な熱変形をしても何んら拘束されることがなく、
自由に変形でき、したがって歪みのため破壊されるもの
が著く少なくなった。In this way, in the manufacturing method of this embodiment, the fluorescent film (5
) is bent and connected before forming the valve body (10), so the curved closed end (12) and connecting part (11
) The intensity of the bulb (1) will not be reduced due to the phosphor particles being buried in the bulb (1). In addition, although the bulb (1) has a bent discharge path (14), all open ends (11
), (11)... are facing in the same direction, so if the phosphor suspension (4) is injected from any open end (11), the entire discharge path (14) will flow through the connecting part (13). Fill it. Then, turn the valve (1) over and open all the open ends (
11), (11)... face downward, the discharge path (1
The phosphor suspension (4) in 4) flows out simultaneously from all the open ends, and the excess liquid (41) also flows out from all the open ends (11), (11).
) are simultaneously and rapidly discharged from... Therefore, the coating film formed on the wall surface of the discharge path (14) is homogeneous and uniform. Therefore, the phosphor film obtained by firing has a much more uniform thickness than the above-described phosphor film formed and then bent. Furthermore, in valves whose intermediate portions are curved or connected in this way, some degree of reversible thermal deformation occurs around the curved or connecting portions during the heating and cooling process during manufacturing; In the method for manufacturing an example fluorescent lamp, all open ends (11), (11
)... are each separate parts of the mount stem (6)
, (6) and the dummy stems (7), (7) are each independently closed, so even if the above-mentioned curved parts and connecting parts undergo reversible thermal deformation, they will not be restrained in any way. Without,
It can be freely deformed and therefore has significantly less destruction due to distortion.
つぎに、第２の実施例を第７図ないし第１０図に示す。Next, a second embodiment is shown in FIGS. 7 to 10.
まず、第７図に示すように、１端（１１）が開口し、他
端（１２）が閉塞した４本の直管状ガラスバルブ素体（
１０） 、 （１０）を用意し、開口端（１１） 、
（１１）・・・が総で同方向にあるように同一平面上に
保持する。First, as shown in Fig. 7, four straight glass bulb bodies (11) with one end (11) open and the other end (12) closed (
10), (10) are prepared, and the open end (11),
(11)... are held on the same plane so that they are all in the same direction.
そうして、第８図に示すように、全バルブ素体（１０）
、 （１０）・・・のそれぞれの開口端（１１）、（
１１）・・・を給気枠（２１） 、 （２１）・・・で
閉塞し、連結予定部を局部加熱して給気枠（２１）、（
２１）から空気を吹き込んで連結予定部を外側に吹き破
り、そのカラー相互を溶着して連通部の１種である連結
部（１３） 、 （１３）・・・を形成し、これによっ
て連結部（１３） 、 （１３） 、 （１３）がいず
れもＵ字形をなして、全バルブ素体（１０）、 （１０
）・・・を連通し、屈曲して連続した放電路（１４）を
有するＵ字形バルブ（１）に形成する。Then, as shown in Figure 8, the whole valve body (10)
, (10)..., each opening end (11), (
11)... are closed with the air supply frames (21), (21)..., and the planned connection parts are locally heated and the air supply frames (21), (
21) blows air through the planned connection part to the outside, and welds the collars to each other to form connection parts (13), (13)... which are a type of communication part, thereby forming the connection part. (13), (13), (13) all form a U-shape, and all valve bodies (10), (10
)... are connected and bent to form a U-shaped bulb (1) having a continuous discharge path (14).
そうして、第９図に示すように、開口端（１１）。Then, as shown in FIG. 9, the open end (11).
（１１）・・・が下向きになるようにバルブ（１）を保
持し、４本のノズル（３）、（３）をそれぞれの開口端
（１１）。(11) Hold the valve (1) so that... is facing downward, and connect the four nozzles (3) to their respective open ends (11).
（１１）・・・からバルブ素体（１０） 、 （１０）
・・・内に深く挿入して蛍光体けん濁液（４）を噴射す
る。すると、噴射された蛍光体けん濁液（４）はバルブ
素体（１０）。(11)... to valve body (10), (10)
... Insert the tube deeply into the tube and spray the phosphor suspension (4). Then, the injected phosphor suspension (4) hits the bulb body (10).
（１０）・・・の閉塞端（１２） 、 （１２）・・・
内面に吹きつけられたのちバルブ素体（１０） 、 （
１０）・・・内側面すなわち放電路（１４）の壁面に沿
って流下して開口端（１１）、（１１）・・・から流出
し、壁面に塗膜（４１）が形成される。Closed end (12) of (10)..., (12)...
After being sprayed on the inner surface, the valve body (10), (
10) ... It flows down along the inner surface, that is, the wall surface of the discharge path (14) and flows out from the opening ends (11), (11), etc., and a coating film (41) is formed on the wall surface.
そこで、第５図に示した第１の実施例と同様バルブ（１
）の開口端（１１）、 （１１）・・・近傍の蛍光体塗
膜（４１）を除去してから完全乾燥し、ついで焼成して
蛍光膜（５）に形成する。Therefore, the valve (1) is similar to the first embodiment shown in FIG.
), the phosphor coating film (41) in the vicinity of the opening end (11), (11), etc. is removed, completely dried, and then fired to form a phosphor film (5).
ついで、バルブ（１）を開口端（１１）、 （１１）・
・・が下向きになるように保持し、中央の開口端（１１
）、 （１１）・・・を焼絞って自己閉塞してカレント
（８）を切落し、両端の開口端（１１）、 （１１）を
フィラメント（６１）を有するマウントステム（６）で
独立に封着する。この両種開口端（１１）、（１１）の
封着はどちらの封着を先に行ってもよく、あるいは全開
口端（１１）、（１１）を同時に独立して封着してもよ
いが、しかし、別々に封着する場合、後の封着工程にお
いて、後で封着した部分が再加熱されてクラックを生じ
やすいので、同時封着が特に好ましい。そうして、封着
工程ののち通常の方法で排気し、始動ガスと水銀（アマ
ルガムでもよい。）を充填して封止すれば第１０図に示
すＭ字形蛍光ランプが得られる。Then, connect the valve (1) to the open end (11), (11),
・Hold it so that it faces downward, and open the center open end (11
), (11)... are self-closed by burning and squeezing to cut off the current (8), and the open ends (11) and (11) at both ends are independently connected to the mounting stem (6) having the filament (61). Seal. Either type of opening end (11), (11) may be sealed first, or all opening ends (11), (11) may be sealed simultaneously and independently. However, if the parts are sealed separately, the sealed parts are likely to be reheated and cracked in the subsequent sealing process, so simultaneous sealing is particularly preferable. After the sealing process, the lamp is evacuated in the usual manner, and then filled with starting gas and mercury (amalgam may be used) and sealed to obtain the M-shaped fluorescent lamp shown in FIG.
この第２の実施例においても蛍光膜（５）を形成する前
にバルブ素体（１０）を連結するので連結部（１３）に
蛍光体粒子が埋込まれることがなく、また、総ての開口
端（１１） 、 （１１）・・・から同時に蛍光体けん
濁液（４）を吹きつけて余剰液を排出するので、塗膜（
４１）換言すれば蛍光膜（５）が均一に形成でき、合
さらに、総ての開口端（１１）、ｉｔ）・・−１４部材
（６）（自己閉塞も部材と見なす。）で閉塞したのでバ
ルブ（１）が可逆的な熱変形をしても歪のため破壊され
ることが極めて少なくなった。Also in this second embodiment, since the bulb body (10) is connected before forming the fluorescent film (5), phosphor particles are not embedded in the connecting part (13), and all Since the phosphor suspension (4) is simultaneously sprayed from the opening ends (11), (11), etc. and the excess liquid is discharged, the paint film (
41) In other words, the fluorescent film (5) can be formed uniformly, and all the open ends (11), it)...-14 are closed with the member (6) (self-closing is also considered as a member). Therefore, even if the bulb (1) undergoes reversible thermal deformation, it is extremely unlikely to be destroyed due to distortion.
さらに、第３の実施例を第１１図に示す。このものは前
述と同様なＵ字形またはＵ字形をなすバルブ素体（１０
） 、 （１０）を並置して連結管（１３）で連結して
、連続した放電路（１４）を構成し、前述と同様紙面の
背後方向に設けた開口をマウントステム（６）。Further, a third embodiment is shown in FIG. This is a U-shaped or U-shaped valve body (10
) and (10) are juxtaposed and connected by a connecting pipe (13) to form a continuous discharge path (14), and the opening provided in the rear direction of the paper as described above is connected to the mount stem (6).
（６）およびダミーステム（７）、（７）で閉塞したも
ので、再実施例と同一部分には同一符号を付して説明を
略する。この第３の実施例も前述と同様な製造方法で形
成され、同様な効果を有する。(6) and dummy stems (7), (7), and the same parts as in the second embodiment are given the same reference numerals and the explanation will be omitted. This third embodiment is also formed by a manufacturing method similar to that described above, and has similar effects.
なお、前述の実施例においてはバルブの閉塞端がゆるや
かにカーブしたＵ字形バルブや直管形バルブ２本を閉塞
端から離れた位置で連結したＵ字形バルブを用いたが、
本発明においてはこれに限らず、たとえば閉塞端面から
この面と同一平面において横方向に連通部が延在してほ
ぼ直角形に２回屈曲してもよい。そうして、バルブ素体
の成形は折り曲げ成形でも、形吹き成形でもかまわない
。In the above embodiments, a U-shaped valve in which the closed end of the valve was gently curved or a U-shaped valve in which two straight pipe valves were connected at a position away from the closed end was used.
In the present invention, the present invention is not limited to this, and for example, the communication portion may extend from the closed end surface in the lateral direction on the same plane as the closed end surface, and may be bent twice into a substantially right angle shape. Then, the valve body may be formed by bending or blow molding.
また閉塞端面で連結してもよい。Alternatively, they may be connected at a closed end surface.
さらに、本発明の蛍光ランプは上述の実施例のほか、Ｍ
字形放電路を２列に並置したものなど３個以上の直管部
をわん曲部や連結部などの連通部を介して１本の放電路
を形成したものには総て適用できる。また、バルブ内面
に蛍光体けん濁液を被着する手段は前述の例に限らない
。さらに、閉塞部材も中間開口端用にはセラミックス、
金属などで構成してもよい。Furthermore, in addition to the above-mentioned embodiments, the fluorescent lamp of the present invention also includes M
The present invention can be applied to any type of discharge path in which three or more straight pipe parts are connected to a communication part such as a curved part or a connecting part to form one discharge path, such as one in which two rows of character-shaped discharge paths are arranged side by side. Further, the means for depositing the phosphor suspension on the inner surface of the bulb is not limited to the above-mentioned example. Furthermore, the closing member is made of ceramics for the intermediate open end.
It may also be made of metal or the like.
このように、本発明の蛍光ランプの製造方法は互いに並
置された３個以上の直管部を有し各直管部の同方向の端
部が開口するとともに他端が閉塞しかつ各直管部の内部
が連通されて１本の放電路を形成したガラスバルブの内
面に蛍光体けん濁液を被着し、下向きにされた開口端か
ら余剰液を排出し、そののち上記全開口端をそれぞれ別
部材で閉塞したので、わん曲部または連結部のガラスに
蛍光体粒子が埋込まれて熱的あるいは機械的な強度低下
を来たして破損するものが格段に減少し、蛍光膜の膜厚
が従来の蛍光膜を形成してから曲成したものに比較して
著く均一で輝度むらがなく、さらに製造過程およびその
後の点灯に際してバルブが多少可逆的な熱変形をしても
この変形が全く拘束されないので、破損が格段に減少し
た。As described above, the method for manufacturing a fluorescent lamp of the present invention has three or more straight tube sections arranged in parallel with each other, each straight tube section having one end in the same direction open and the other end closed. A phosphor suspension is applied to the inner surface of the glass bulb, the inside of which is connected to form one discharge path, and the excess liquid is discharged from the downward facing open end. Since each part is closed with a separate member, the number of cases where phosphor particles become embedded in the glass of curved or connecting parts and cause thermal or mechanical strength reduction and breakage is greatly reduced, and the thickness of the phosphor film can be reduced. Compared to the conventional fluorescent film that is formed and then bent, it is significantly more uniform and has no uneven brightness, and even if the bulb undergoes some reversible thermal deformation during the manufacturing process and subsequent lighting, this deformation will not occur. Since there is no restraint at all, damage is significantly reduced.
第１図ないし第６図は本発明の蛍光ランプの製造方法の
第１の実施例を工程順に説明する説明図、第７図ないし
第１０図は第２の実施例を工程順に説明する説明図、第
１１図は第３の実施例の最工程の説明図である。FIGS. 1 to 6 are explanatory diagrams explaining the first embodiment of the method for manufacturing a fluorescent lamp of the present invention in the order of steps, and FIGS. 7 to 10 are explanatory diagrams explaining the second embodiment in the order of the steps. , FIG. 11 is an explanatory diagram of the final step of the third embodiment.
Claims (15)
部の同方向の端部が開口するとともに他端が閉塞しかつ
各直管部の内部が連通されて１本の放電路を形成したガ
ラスバルブの内面に蛍光体けん濁液を被着し、下向きに
した上記開口端から余剰液を排出し、そののち上記全開
口端をそれぞれ独立に閉塞することを特徴とする蛍光ラ
ンプの製造方法。(1) It has three or more straight pipe parts arranged in parallel with each other, the ends of each straight pipe part in the same direction are open, the other end is closed, and the inside of each straight pipe part is communicated with each other to form a single pipe. A phosphor suspension is deposited on the inner surface of a glass bulb in which a discharge path is formed, excess liquid is discharged from the downwardly facing open ends, and then all the open ends are individually closed. Method of manufacturing fluorescent lamps.
されていることを特徴とする特許請求の範囲第１項記載
の蛍光ランプの製造方法。(2) The method for manufacturing a fluorescent lamp according to claim 1, wherein the communication portion on the open end side is formed at a position away from the open end.
カーブする曲管部からなることを特徴とする特許請求の
範囲第１項記載の蛍光ランプの製造方法。(3) The method for manufacturing a fluorescent lamp according to claim 1, wherein the communication portion on the closed end side is comprised of a curved tube portion that gently curves from the end face of the straight tube portion.
されていることを特徴とする特許請求の範囲第１項記載
の蛍光ランプの製造方法。(4) The method for manufacturing a fluorescent lamp according to claim 1, wherein the communication portion on the closed end side is formed at a position away from the closed end.
位置して形成されていることを特徴とする特許請求の範
囲第１項記載の蛍光ランプの製造方法。(5) The method for manufacturing a fluorescent lamp according to claim 1, wherein the communication portion on the closed end side is formed to be located substantially on the same plane as the closed end surface.
なす複数本のＵ字形バルブ素体を並置し隣接するバルブ
の直管部相互を接続してなることを特徴とする特許請求
の範囲第１項記載の蛍光ランプの製造方法。(6) The glass bulb has a plurality of U-shaped bulb bodies that are open at both ends and have a U-shaped discharge path, arranged side by side, and the straight pipe portions of adjacent bulbs are connected to each other. A method for manufacturing a fluorescent lamp according to scope 1.
ブをＵ字状に曲成して得られたことを特徴とする特許請
求の範囲第３項記載の蛍光ランプの製造方法。(7) The method for manufacturing a fluorescent lamp according to claim 3, wherein the glass bulb is obtained by bending a straight glass bulb with open ends into a U-shape.
たことを特徴とする特許請求の範囲第３項または第５項
記載の蛍光ランプの製造方法。(8) The method for manufacturing a fluorescent lamp according to claim 3 or 5, wherein the glass bulb has the communicating portion formed by die blow molding.
形またはＵ字形のガラスバルブ素体を２本並置し、隣接
するバルブの閉塞端近傍の対向部位を加熱軟化させて吹
き破り、この吹き破った部分相互を溶着させてなること
を特徴とする特許請求の範囲第４項、第５項および第８
項のいずれかに記載した蛍光ランプの製造方法。(9) Glass bulbs are made by juxtaposing two straight or U-shaped glass bulb bodies with one end open and the other closed, and blowing them out by heating and softening the opposing parts near the closed ends of the adjacent bulbs. Claims 4, 5, and 8 are characterized in that the blown-out parts are welded together.
A method for manufacturing a fluorescent lamp as described in any of paragraphs.
を注入して被着し、そののち上記バルブを反転して総て
の開口端を下向きにして余剰液を排出することを特徴と
する特許請求の範囲第１項記載の蛍光ランプの製造方法
。(10) The phosphor suspension is injected and deposited with the open end of the bulb facing upward, and then the bulb is reversed and all open ends are directed downward to drain excess liquid. A method for manufacturing a fluorescent lamp according to claim 1.
光体けん濁液を吹き付けて被着しかつ余剰液を上記開口
端から流出させることを特徴とする特許請求の範囲第１
項記載の蛍光ランプの製造方法。(11) A phosphor suspension is sprayed onto the inner surface of the bulb with the entire open end facing downward, and the excess liquid is allowed to flow out from the open end.
2. Method for manufacturing a fluorescent lamp as described in Section 1.
の開口端部内面の被着液を除去することを特徴とする特
許請求の範囲第１項記載の蛍光ランプの製造方法。(12) A method for manufacturing a fluorescent lamp according to claim 1, characterized in that after draining the excess phosphor suspension, the liquid deposited on the inner surface of the open end of the bulb is removed.
れた蛍光体を蛍光膜に形成することを特徴とする特許請
求の範囲第１項記載の蛍光ランプの製造方法。(13) A method for manufacturing a fluorescent lamp according to claim 1, wherein the phosphor is baked and deposited to form a fluorescent film before sealing the open end of the bulb.
とする特許請求の範囲第１項記載の蛍光ランプの製造方
法。(14) The method for manufacturing a fluorescent lamp according to claim 1, characterized in that all open ends of the bulb are closed at the same time.
とを特徴とする特許請求の範囲第１項または第１４項記
載の蛍光ランプの製造方法。(15) The method for manufacturing a fluorescent lamp according to claim 1 or 14, characterized in that the opening in the middle of the discharge path is closed by burning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27306987A JPH01117236A (en) | 1987-10-30 | 1987-10-30 | Manufacture of fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27306987A JPH01117236A (en) | 1987-10-30 | 1987-10-30 | Manufacture of fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01117236A true JPH01117236A (en) | 1989-05-10 |
Family
ID=17522712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27306987A Pending JPH01117236A (en) | 1987-10-30 | 1987-10-30 | Manufacture of fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01117236A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5090931A (en) * | 1989-11-29 | 1992-02-25 | Toshiba Lighting & Technology Corporation | Method of producing a lamp having a coated layer and the lamp produced thereby |
| CN104653776A (en) * | 2015-01-14 | 2015-05-27 | 柳州柳工挖掘机有限公司 | Automatic pressure-relief sealing device and engineering machinery cab |
-
1987
- 1987-10-30 JP JP27306987A patent/JPH01117236A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5090931A (en) * | 1989-11-29 | 1992-02-25 | Toshiba Lighting & Technology Corporation | Method of producing a lamp having a coated layer and the lamp produced thereby |
| CN104653776A (en) * | 2015-01-14 | 2015-05-27 | 柳州柳工挖掘机有限公司 | Automatic pressure-relief sealing device and engineering machinery cab |
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