JPH0361985B2 - - Google Patents
Info
- Publication number
- JPH0361985B2 JPH0361985B2 JP18518183A JP18518183A JPH0361985B2 JP H0361985 B2 JPH0361985 B2 JP H0361985B2 JP 18518183 A JP18518183 A JP 18518183A JP 18518183 A JP18518183 A JP 18518183A JP H0361985 B2 JPH0361985 B2 JP H0361985B2
- Authority
- JP
- Japan
- Prior art keywords
- crimp
- glass
- compressive strain
- light
- sealed
- 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
Landscapes
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Description
【発明の詳細な説明】 本発明は圧着封止型電球に関するものである。[Detailed description of the invention] The present invention relates to a crimp-sealed light bulb.
一般に圧着封止電球は自動車の照明灯用或いは
その他の電球として広く用いられている。 In general, crimp-sealed light bulbs are widely used for automobile lighting and other light bulbs.
第１図及び第２図は自動車の照明灯用として用
いられる圧着封止型白熱電球の一例を示し、１は
例えばアルミノシリケートガラスなどの硬質ガラ
ス製の封体であり、この封体１は発光部囲繞部１
１とこれに続く扁平に圧着されて形成された圧着
封止部１２とにより構成されている。発光部囲繞
部１１内には２個のフイラメント即ち上部フイラ
メント２及び下部フイラメント３が互に平行に難
間しかつ封体１の軸Ｐとは直角に配置されてい
る。上部フイラメント２は主として自動車の直前
方下方を照明するものであり、下部フイラメント
３は主として自動車の前方遠方を証明するもので
ある。これら上部フイラメント２及び下部フイラ
メント３はそれぞれ支持リード棒２１Ａ，２１Ｂ
及び支持リード棒３１Ａ，３１Ｂにより支持され
ており、これらの支持リード棒２１Ａ，２１Ｂ及
び３１Ａ，３１Ｂは封体１内におけるガラス製ブ
リツジ４内に埋設されて互に相対的位置関係が固
定され、それらの外端は圧着封止部１２の外方に
突出して伸びている。圧着封止部１２内において
支持リード棒２１Ａ，２１Ｂ及び３１Ａ，３１Ｂ
がガラス部分と気密に溶着されている。 Figures 1 and 2 show an example of a crimp-sealed incandescent light bulb used for automobile lighting, and 1 is an enclosure made of hard glass such as aluminosilicate glass. Part enclosing part 1
1 and a crimping sealing portion 12 that is formed by being crimped flatly. Two filaments, an upper filament 2 and a lower filament 3, are arranged in the light-emitting part surrounding part 11, parallel to each other and perpendicular to the axis P of the envelope 1. The upper filament 2 mainly illuminates the front and lower part of the car, and the lower filament 3 mainly illuminates the far front part of the car. These upper filament 2 and lower filament 3 are support lead rods 21A and 21B, respectively.
and support lead rods 31A, 31B, these support lead rods 21A, 21B and 31A, 31B are embedded in a glass bridge 4 in the enclosure 1 and their relative positional relationship is fixed, Their outer ends project outwardly from the crimp seal 12 and extend. Support lead rods 21A, 21B and 31A, 31B in the crimp sealing part 12
is hermetically welded to the glass part.
前記圧着封止部１２の形成は、例えば、筒状の
ガラス管の端部を例えばガスバーナで加熱溶融せ
しめ、この状態でピンチヤーにより押圧変形して
当該端部開口を気密に塞いで扁平な形状とし、次
いでアニール工程を経て、その後自然に放冷させ
て行なわれる。しかしながらこのアニール工程で
は、圧着封止部１２の全体を外部から大体均等に
ガスバーナを当てて加熱焼きなますものであるた
め、アニール工程及び放冷過程では、圧着封止部
１２の側部１３，１３から湾曲ガラス部分１６の
側部１４，１４に至る部分（以下単に「特定部
分」という。）Ｑ，Ｑが湾曲ガラス部分１６の内
面よりも高温の状態で降温していくことになり、
この結果特定部Ｑ，Ｑに引張歪が残り易いと推定
され、このため当該特定部分Ｑ，Ｑにおいてクラ
ツクが発生し易く、結局歩留まりが相当に悪い。 The crimp-sealed portion 12 is formed, for example, by heating and melting the end of a cylindrical glass tube using a gas burner, and pressing and deforming it with a pincher in this state to airtightly close the opening of the end to form a flat shape. Then, it goes through an annealing process, and then is allowed to cool naturally. However, in this annealing process, the entire crimp sealing part 12 is heated and annealed by applying a gas burner evenly from the outside. 13 to the side portions 14, 14 of the curved glass portion 16 (hereinafter simply referred to as “specific portions”), the temperature of the portions Q, Q decreases while being higher than the inner surface of the curved glass portion 16,
As a result, it is estimated that tensile strain tends to remain in the specific parts Q, Q, and therefore cracks are likely to occur in the specific parts Q, Q, resulting in a considerably poor yield.
一方、点灯時においては、湾曲ガラス部分１６
の内面が上部フイラメント２及び下部フイラメン
ト３の熱を受けて高温となるのに対し、特定部分
Ｑ，Ｑは前記フイラメント２及び３からは熱を受
けにくいので比較的低温に保たれ、この結果特定
部分Ｑ，Ｑには封対１の軸Ｐ方向に大きな引張応
力が生じ、このため当該特定部分Ｑ，Ｑにクラツ
クが発生し易い。 On the other hand, when the light is on, the curved glass portion 16
The inner surface of the inner surface receives heat from the upper filament 2 and lower filament 3 and becomes high temperature, whereas the specific portions Q and Q do not easily receive heat from the filaments 2 and 3 and are therefore kept at a relatively low temperature. A large tensile stress is generated in the portions Q, Q in the direction of the axis P of the seal 1, and therefore, cracks are likely to occur in the specific portions Q, Q.
本発明は以上の如き事情に基いてなされたもの
であつて、前記特定部分にクラツクが発生するこ
とを抑止することができて、歩留まりがよくしか
も長い使用寿命を得ることができる圧着封止型電
球を提供することを目的とし、その特徴とすると
ころは、発光部囲繞部及びこの発光部囲繞部に続
いて扁平に圧着されて形成された圧着封止部より
成るガラス製封体を有して成る電球において、圧
着封止部の側部から発光部囲繞部に連なる湾曲ガ
ラス部分の側部に至る部分に、点灯時に相殺され
るかそれ以上の圧縮歪を有するものである点にあ
る。 The present invention has been made based on the above-mentioned circumstances, and is a crimp-sealed type that can suppress the occurrence of cracks in the specific portion, has a high yield, and has a long service life. The object of the present invention is to provide a light bulb, which is characterized by having a glass sealing body consisting of a light emitting part surrounding part and a crimped sealing part formed by being flatly crimped following the light emitting part surrounding part. The light bulb is characterized in that the portion from the side of the crimp-sealed portion to the side of the curved glass portion continuous to the light-emitting portion surrounding portion has a compressive strain that is canceled out or exceeded when lit.
以下前記第１図及び第２図を用いて本発明の一
実施例を詳細に説明する。 An embodiment of the present invention will be described in detail below using FIGS. 1 and 2.
まず特定部分Ｑ，Ｑのそれぞれに封体１の軸Ｐ
方向に圧縮歪を与える。具体的には例えば次のよ
うにして圧縮歪を与えることができる。即ち、圧
着封止部１２のアニール工程において、従来のよ
うに圧着封止部１２全体を均等に加熱するのでは
なく、湾曲ガラス部分１６の中央部１５を特に加
熱し、相対的に特定部分Ｑ，Ｑの温度を低い状態
に保ちながら温度を緩かに低下させるようにして
アニールを行ない、次いで自然放冷させる。この
ような手段によれば、放冷終了時においては、温
度降下幅が大きい湾曲ガラス部分１６の中央部１
５及びその内面は特定部分Ｑ，Ｑよりも収縮が大
きいため、当該湾曲ガラス部分１６の中央部１５
及びその内面には相対的に引張応力が発生して
も、特定部分Ｑ，Ｑには封体１の軸Ｐ方向の圧縮
歪が形成される。 First, the axis P of the envelope 1 is attached to each of the specific parts Q and Q.
Apply compressive strain in the direction. Specifically, for example, compressive strain can be applied as follows. That is, in the annealing process of the crimp-sealed portion 12, instead of uniformly heating the entire crimp-sealed portion 12 as in the conventional method, the central portion 15 of the curved glass portion 16 is particularly heated, and a relatively specific portion Q is heated. , Q is kept at a low temperature while annealing is performed by slowly lowering the temperature, and then allowed to cool naturally. According to such a means, at the end of cooling, the central part 1 of the curved glass part 16 where the temperature drop is large.
5 and its inner surface have a larger contraction than the specific parts Q and Q, so the central part 15 of the curved glass part 16
Even if tensile stress is relatively generated on the inner surface thereof, compressive strain in the direction of the axis P of the enclosure 1 is formed in the specific portions Q, Q.
以上の実施例によれば、特定部分Ｑ，Ｑのそれ
ぞれには封体１の軸Ｐ方向に圧縮歪が存在するた
め、製造時においては、特定部分Ｑ，Ｑに結果と
して圧縮歪が形成されるような放冷過程を経るこ
ととなるから、当該放冷過程においては既述のよ
うに特定部分Ｑ，Ｑにはほとんど引張応力が発生
しない状態若しくは圧縮応力が発生した状態で放
冷されるが、ガラスは通常引張応力には非常に脆
いが圧縮応力に対しては相当に大きな耐性をを有
することから、当該放冷過程において特定部分
Ｑ，Ｑにクラツクが発生することを相対に抑止す
ることができ、この結果歩留まりの向上を図るこ
とができる。そして点灯時においては、圧着封止
部１２の中央部１８、湾曲ガラス部分１６の中央
部１５及びその内面が比較的高温となるに対し、
特定部分Ｑ，Ｑはその温度が低く温度差ΔTが生
ずるが、既述のように圧縮歪が存在するため、特
定部分Ｑ，Ｑにおいて、前記温度差ΔTにより圧
縮歪の大きさが緩和されるだけで引張応力は発生
せず、若しくは完全に相殺されて引張応力が生じ
たとしてもその大きさが相当に小さくなり、この
結果特定部分Ｑ，Ｑにクラツクが発生することを
抑止することができ、長い使用寿命を得ることが
できる。 According to the above embodiment, since compressive strain exists in each of the specific portions Q, Q in the direction of the axis P of the enclosure 1, compressive strain is not formed in the specific portions Q, Q during manufacturing. Therefore, in the cooling process, as mentioned above, the specific parts Q and Q are left to cool in a state where almost no tensile stress is generated or a compressive stress is generated. However, since glass is normally very brittle to tensile stress but has considerable resistance to compressive stress, it is relatively possible to prevent cracks from occurring in specific parts Q and Q during the cooling process. As a result, the yield can be improved. When the lighting is on, the center part 18 of the crimp sealing part 12, the center part 15 of the curved glass part 16, and the inner surface thereof become relatively high temperature.
The temperature of the specific parts Q and Q is low and a temperature difference ΔT occurs, but since compressive strain exists as described above, the magnitude of the compressive strain is alleviated by the temperature difference ΔT in the specific parts Q and Q. Even if a tensile stress does occur, the magnitude of the tensile stress will be considerably reduced, and as a result, it is possible to prevent cracks from occurring in the specific portions Q and Q. , you can get a long usage life.
以上において圧縮歪の大きさは点灯時において
圧縮応力がちようど相殺される程度の大きさとす
るのが好ましいがそれ以上の大きさであつてもよ
い。具体的には、特定部分Ｑ，Ｑの内部応力は例
えば偏光式歪計を用いて歪角度を測定することに
より求めることができ、ガラスが例えばアルミノ
シリケートガラスである場合には下記式で換算す
ることができるので、歪角度が所定の大きさとな
るように圧縮歪を与える。 In the above, it is preferable that the magnitude of the compressive strain be set to such a magnitude that the compressive stress tends to be offset during lighting, but it may be greater than that. Specifically, the internal stress of the specific portions Q and Q can be determined by measuring the strain angle using a polarization strain meter, for example, and if the glass is aluminosilicate glass, it is converted using the following formula. Therefore, compressive strain is applied so that the strain angle becomes a predetermined value.
Δσ＝0.12×φ2−φ1／ｌ
ただし、Δσ：内部応力の変化分（Kgｆ／mm2）
φ1：消灯時における歪角度（度）
φ2：点灯時における歪角度（度）
ｌ：特定部分Ｑ，Ｑの厚さ（mm）
以上のように本発明は、発光部囲繞部及びこの
発光部囲繞部に続いて扁平に圧着されて形成され
た圧着封止部より成るガラス製封体を有して成る
電球において、圧着封止部の側部から発光部囲繞
部に連なる湾曲ガラス部分の側部に至る部分に、
点灯時に相殺されるかそれ以上の圧縮歪を有する
ものであることを特徴とする圧着封止型電球であ
るから、封体にクラツクが発生することを抑止す
ることができて、歩留まりがよくしかも長い使用
寿命を得ることができる圧着封止型電球を提供す
ることができる。 Δσ=0.12×φ 2 −φ 1 /l Where, Δσ: Change in internal stress (Kgf/mm 2 ) φ 1 : Distortion angle (degrees) when the lights are off φ 2 : Distortion angle (degrees) when the lights are on l: Thickness of specific portions Q and Q (mm) As described above, the present invention provides a glass sealing body comprising a light-emitting part surrounding part and a pressure-bonded sealing part formed by being flatly crimped following the light-emitting part surrounding part. In the light bulb comprising:
Since it is a crimp-sealed light bulb that is characterized by having a compressive strain that is canceled out or exceeds that when lit, it is possible to prevent cracks from occurring in the sealing body, resulting in a high yield. It is possible to provide a crimp-sealed light bulb that can have a long service life.
第１図及び第２図はそれぞれ圧着封止型電球の
一例を示す説明用平面図及び説明用斜視図であ
る。
１……封体、１１……発光部囲繞部、１２……
圧着封止部、２……上部フイラメント、３……下
部フイラメント、２１Ａ，２１Ｂ……支持リード
棒、３１Ａ，３１Ｂ……支持リード棒、４……ガ
ラス製ブリツジ、１３，１３……圧着封止部の側
部、１４，１４……湾曲ガラス部分の側部、Ｑ…
…特定部分、１５……湾曲ガラス部分の中央部、
１６……湾曲ガラス部分、１８……圧着封止部の
中央部。
FIG. 1 and FIG. 2 are an explanatory plan view and an explanatory perspective view, respectively, showing an example of a crimp-sealed light bulb. DESCRIPTION OF SYMBOLS 1... Enclosure, 11... Light-emitting part surrounding part, 12...
Crimp sealing portion, 2... Upper filament, 3... Lower filament, 21A, 21B... Support lead rod, 31A, 31B... Support lead rod, 4... Glass bridge, 13, 13... Crimp sealing. side part of the part, 14, 14... side part of the curved glass part, Q...
...Specific part, 15...Central part of curved glass part,
16...Curved glass portion, 18...Crimped sealing portion central portion.
Claims (1)
扁平に圧着されて形成された圧着封止部より成る
ガラス製封体を有して成る電球において、圧着封
止部の側部から発光部囲繞部に連なる湾曲ガラス
部分の側部に至る部分に、点灯時に相殺されるか
それ以上の圧縮歪を有するものであることを特徴
とする圧着封止型電球。1. In a light bulb having a glass enclosure consisting of a light emitting part surrounding part and a crimp sealing part formed by being flatly crimped following the light emitting part surrounding part, the light emitting part can be removed from the side of the crimp sealing part. 1. A crimp-sealed light bulb characterized in that a curved glass portion connected to a surrounding portion has a compressive strain that is offset or exceeds the amount of compressive strain at the time of lighting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18518183A JPS6077348A (en) | 1983-10-05 | 1983-10-05 | Press-bond sealed bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18518183A JPS6077348A (en) | 1983-10-05 | 1983-10-05 | Press-bond sealed bulb |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6077348A JPS6077348A (en) | 1985-05-01 |
| JPH0361985B2 true JPH0361985B2 (en) | 1991-09-24 |
Family
ID=16166254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18518183A Granted JPS6077348A (en) | 1983-10-05 | 1983-10-05 | Press-bond sealed bulb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6077348A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61104557A (en) * | 1984-10-29 | 1986-05-22 | Toshiba Corp | Tubular bulb and its manufacture |
| JPS63105259U (en) * | 1986-12-26 | 1988-07-07 |
-
1983
- 1983-10-05 JP JP18518183A patent/JPS6077348A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6077348A (en) | 1985-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2536863B2 (en) | Halogen incandescent lamp and manufacturing method thereof | |
| US3617797A (en) | Pinch-base electric lamp with transversely arranged supply wires | |
| EP0645800B1 (en) | High pressure discharge lamp | |
| CA1135780A (en) | Short-arc discharge lamp | |
| JPH0361985B2 (en) | ||
| US5128851A (en) | Vibration resistant mount structure for double ended tungsten-halogen lamp | |
| US3885186A (en) | Lamp cap connections using superplastic alloy | |
| JPH02181358A (en) | Incandescent electric lamp and manufacture thereof | |
| US20090295290A1 (en) | Metal lead-through structure and lamp with metal lead-through | |
| EP0692813B1 (en) | Mount for an incandescent filament electric lamp and incandescent filament electric lamp comprising a copper-steel composite lead wire | |
| JP2008181716A (en) | Discharge lamp and lighting device | |
| EP1154460A1 (en) | Electrode for quartz lamp | |
| US5754005A (en) | Electric lamps containing electrical leads of a molybdenum and tungsten alloy | |
| JP2019200936A (en) | Filament lamp | |
| US3818558A (en) | Method of making lamp cap connections using superplastic alloy | |
| JP4950048B2 (en) | Lamp assembly | |
| JPH01128347A (en) | Fluorescent lamp | |
| JPS5847642Y2 (en) | Tungsten halogen lamp with improved seal | |
| EP1367634B1 (en) | High-pressure discharge lamp and fabrication method of the same | |
| JPH0475624B2 (en) | ||
| JPH0131663B2 (en) | ||
| JP2002533873A (en) | lamp | |
| JPH0138849Y2 (en) | ||
| JP2004199908A (en) | Fluorescent lamp and method of manufacturing the same | |
| JPS5836802B2 (en) | tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |