JPS5977767U - tube valve - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図ないし第３図は本考案の一実施例を示し、第１図
は放電灯の発光管バルブの構成図、第２図は第１図中■
部を拡大した構成図、第３図はその製造方法を説明する
図である。第４図ないし第８図は本考案の変形例を示す
それぞれ要部の構成図、第９図および第１０図は好まし
くない例を示すそれぞれ要部の構成図である。 Ｐ・・・発光管、Ｑ・・・排気口、６・・・バルブ壁、
７・・・気密封止部。Figures 1 to 3 show an embodiment of the present invention. Figure 1 is a configuration diagram of an arc tube bulb for a discharge lamp, and Figure 2 is a diagram of the structure of a discharge lamp bulb.
FIG. 3 is an enlarged view of the structure of the device and is a diagram illustrating its manufacturing method. FIGS. 4 to 8 are block diagrams of essential parts showing modified examples of the present invention, and FIGS. 9 and 10 are block diagrams of main parts, respectively, showing unfavorable examples. P... Arc tube, Q... Exhaust port, 6... Valve wall,
7...Hermetic sealing part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 排気口が気密封止された管球バルブにおいて、上記気密
封止部の肉厚がバルブ壁の肉厚以上であり、かつ上記気
密封止部とバルブ壁の境界が滑らかに連続していること
を特徴゛とする管球バルブ。In a tube valve whose exhaust port is hermetically sealed, the wall thickness of the airtight sealing portion is greater than or equal to the wall thickness of the valve wall, and the boundary between the airtight sealing portion and the valve wall is smoothly continuous. A tube valve characterized by: