JPS5963626A - Vacuum bulb - 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

【発明の詳細な説明】 し発明の技術分野〕 本発明は、可動軸のガイドを固定するガイド°取付は板
の取付は方法を改良した真空ノくルプ礪二関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a vacuum nozzle which is an improved method for mounting a guide and a plate for fixing a guide on a movable shaft.

〔発明の従来技術〕[Prior art to the invention]

第１図から第４図に、従来用いられてし）る真空バルブ
のガイドの取付部の構成を示す。第Ｅ図シま縦断面図、
第２図は第１図の■矢視図である。ｐＪ動軸ｌは、ベロ
ーズ２を介して端板３に接続され、さらにベローズ２と
ガイド４（二より軸方向（二右胃動可能にされている。FIGS. 1 to 4 show the structure of a mounting portion of a guide of a conventionally used vacuum valve. Figure E: Longitudinal sectional view,
FIG. 2 is a view taken in the direction of the ■ arrow in FIG. The pJ axis l is connected to the end plate 3 via the bellows 2, and furthermore, the bellows 2 and the guide 4 (two-way axial direction (two right stomach movement) are enabled.

ガイド４は、ガ・イ・、ド取付板５を端板３に点溶接す
るとと；二より取付けられ固定されているが、その点溶
接はガイド取付は板上の点５ａ、端板上の点６ｂの間に
電流を流して溶接されている。７はベローズ２と端板３
力玉ろう付け（二より気密に接合される接合部を示し、
又８１よ、金具９と端板３がろう付け（二より気密）二
接合される接合部を示す。The guide 4 is attached and fixed by point welding the guide mounting plate 5 to the end plate 3; Welding is carried out by passing a current between points 6b. 7 is bellows 2 and end plate 3
Chikaradama brazing (indicates a joint that is joined airtightly by two
81 also shows a joint where the metal fitting 9 and the end plate 3 are joined together by brazing (two-way airtight).

ところで、第１１１１じ示すよう１二６ａと６ｂの間で
点溶接する時、点溶接の１点６ｂを接合部８の真上もし
くは外側にすると、電流経路１０は破線のようになり、
接合部８の近くまで加熱され気密が破れる可能性のある
ことが実験の結果判った。By the way, when spot welding is performed between 12 6a and 6b as shown in No. 1111, if the spot welding point 6b is directly above or outside the joint 8, the current path 10 becomes like a broken line,
As a result of experiments, it was found that there is a possibility that the area near the joint part 8 would be heated and the airtightness would be broken.

又、第３図は、点溶接の１点６ａが接合部７の真上もし
くは内側にある場合を示す縦断面図、第４図は第３図の
■矢視図である。この場合も電流経路ＩＯは破線のよう
になり、接合部７の近くまで加熱され、気密が破れる可
能性のあることが実験の結果判った。Further, FIG. 3 is a longitudinal sectional view showing a case where one point 6a of spot welding is located directly above or inside the joint portion 7, and FIG. 4 is a view taken in the direction of the arrow ■ in FIG. In this case as well, the current path IO becomes as shown by the broken line, and it has been found through experiments that there is a possibility that the vicinity of the joint 7 will be heated and the airtightness will be broken.

し発明の１」的〕 本発明は、前述した従来技術の持つ欠点を除去するだめ
になされたもので、ガイド取付は板の点溶接の位置の最
適化により、ガイド取付は板の溶接部の信頼性向上を図
った真空パルプを提供することを目的とする。[Objective of the Invention] The present invention has been made in order to eliminate the drawbacks of the prior art described above.The guide installation is performed by optimizing the position of the spot welds on the plate; The purpose is to provide vacuum pulp with improved reliability.

〔発明の概要〕[Summary of the invention]

本発明は、ガイド取付板と端板とを接合する点溶接位置
を、端板と金具、端板とベローズの内接合部を避け°に
れらの中間部とした点に特徴を有するものである。The present invention is characterized in that the spot welding position for joining the guide mounting plate and the end plate is located in the middle of the end plate and the metal fitting, and the end plate and the bellows, avoiding the inner joints between them. be.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明一実施例を図面について説明する。 An embodiment of the present invention will be described below with reference to the drawings.

第１図乃至第４図と同一部分に同符号を付してその説明
を省略した第５図及び第６図において、従来と相違する
点は、点溶接を、ベローズと端板３の接合部７と金具９
と端板３の接合部８の間に施こしたことにある。In FIGS. 5 and 6, in which the same parts as in FIGS. 1 to 4 are given the same reference numerals and their explanations are omitted, the difference from the conventional method is that spot welding is performed at the joint between the bellows and the end plate 3. 7 and metal fittings 9
and between the joint 8 of the end plate 3.

このようにすれば、電流経路１０は破線の様になり内接
合部７と８から離れているため、接合部７と８の近くま
で加熱されることがなく、気密を保つ上で伺ら問題ない
ことを実験で確認した。In this way, the current path 10 looks like a broken line and is away from the inner joints 7 and 8, so it will not heat up to the vicinity of the joints 7 and 8, which will cause problems in maintaining airtightness. We have confirmed through experiments that this is not the case.

なお上述した実施例は、内接合部７と８の間隔が広い場
合であるが、小形化された真空バルブでは、内接合部７
と８の間のスペースが狭くなり、前述した点溶接の方法
では内接合部７と８を避け゛Ｃ点溶接することが困難な
場合もある。このような場合には、第７図及び第８図に
示すように、ガイド取付は板１０の外周を、内接合部７
と８′の間に円弧状の切り火きｌＯａを設けることによ
り１点溶接の１点６ｂを切り欠きｌＯａにし、他の１点
６ａを６ｂとほぼ同一円周上にすれは内接合部７と８は
気密を保つことができる。In the above-mentioned embodiment, the interval between the inner joint parts 7 and 8 is wide, but in a miniaturized vacuum valve, the inner joint part 7
and 8 becomes narrow, and it may be difficult to avoid the inner joints 7 and 8 and perform spot welding using the spot welding method described above. In such a case, as shown in FIG. 7 and FIG.
By providing an arc-shaped cutout lOa between and 8', one point 6b of the one-point weld is made into a notch lOa, and the other point 6a is on almost the same circumference as 6b, and the inner joint 7 and 8 can maintain airtightness.

さらに上述の第７図及び第８図に示す実施例に代えて、
第９図及び第ＬＯ図に示すようにしてもよい。即ちガイ
ド取付は板１１の外周を３つの切線１１ａと３つの円弧
ｔｔｂで構成し、この切線ｔｔａと円弧ｌ１ｌ）はいず
れも内接合部７と８の間にある様に形成したもので、上
述と同じ効果を得ることができる。Furthermore, instead of the embodiment shown in FIGS. 7 and 8 described above,
It may be configured as shown in FIG. 9 and LO diagram. That is, the guide installation is performed by forming the outer periphery of the plate 11 with three cutting lines 11a and three circular arcs ttb, and these cutting lines tta and circular arcs l1l) are both formed between the inner joints 7 and 8, as described above. You can get the same effect.

なおこの実施例においてホ、切線１１ａより外側のスペ
ースは、前述の円弧状の切り欠き５ａに比べて広いので
、点溶接の作業が容易である。又プレス加工で製作して
も、前述の円弧状の切り欠き構造と比べて変形も少ない
ので、端板３とガイド取付は板５の間のすきまも小さく
、従って点溶接を強固（１行なえる利点もある。In this embodiment, the space outside the cutting line 11a is wider than the arcuate notch 5a described above, so spot welding is easy. In addition, even when manufactured by press working, there is less deformation compared to the above-mentioned arc-shaped notch structure, so the gap between the end plate 3 and the guide mounting plate 5 is also small, which makes spot welding strong (one step is required). There are also advantages.

さらにガイド取付板を第１１図又は第１２図のようにし
てもよい。即ち第１１図に示すガイド取付板１２は、前
述のガイド取付は板１１の外周形状と同じく、４つの切
線１２ａと４つの円弧１２ｂで構成し、この切線１２ａ
と円弧１２ｂはいずれも内接合部７と８の間にあるよう
に形成したものである。Furthermore, the guide mounting plate may be arranged as shown in FIG. 11 or 12. That is, the guide attachment plate 12 shown in FIG.
and the circular arc 12b are both formed so as to be located between the inner joint parts 7 and 8.

これにより得られる効果は、前述したガイド取付板１１
と同じである。さらにこの実施例においては、点溶接は
切線１２ａと円弧１２ｂの交点部に近接して施すように
すれば、８箇所の点溶接ができることになり、多くする
ことができるので溶接強度を増大利点もある。The effect obtained by this is that the guide mounting plate 11 described above
is the same as Furthermore, in this embodiment, if spot welding is performed close to the intersection of the cutting line 12a and the circular arc 12b, eight spot welds can be made. be.

第１２図に示すガイド取付板１３は、外周を直線で構成
し多角形としたものである。The guide mounting plate 13 shown in FIG. 12 has a polygonal outer periphery made of straight lines.

内接合部７と８の位置関係や得られる効果は、ガイド取
付板１２で述べた通りである。さらに点溶接は直線の交
点部近傍とすれば１２箇所施こすことができ点溶接箇所
を多くすることができ、溶接強度を増大させる利点もあ
る。このように、溶接の位阪決めも直線と直線の交点、
あるいは切線と円弧の交点を活用でき、点溶接箇所ぢ容
易に増加することができるため、強度を必要とする□真
空パルプ（１適用することも可能である。The positional relationship between the inner joints 7 and 8 and the effects obtained are as described for the guide mounting plate 12. Furthermore, if spot welding is performed near the intersection of straight lines, 12 spots can be welded, increasing the number of spot welding spots, which also has the advantage of increasing welding strength. In this way, the welding position is determined by the intersection of two straight lines,
Alternatively, the intersection of the cutting line and the circular arc can be utilized, and the number of spot welds can be easily increased, so it is also possible to apply □ vacuum pulp (1), which requires strength.

し発明の効果〕 以上、説、明したように本発明によれは、ガイド取付は
板の点溶接の位置の最適化４二より、ガイド取付板 を提供することができる。[Effects of the Invention] As explained and explained above, according to the present invention, a guide mounting plate can be provided by optimizing the spot welding position of the plate for guide mounting.

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

第１図は従来の真空バルブのガイド取付部の構成を示す
縦断面図、第２図は第１図の■矢印方向から見た平面図
、第３図は第１図と異なる従来の真空バルブのガイド取
付部の構成を示す縦ｌＲｉ面図、第４図は第３図の■矢
印方向から見た平面図、第５図は本発明の一実施例の吸
部を示す縦断面図、第６図は第５図の■矢印方向から見
た平面図、第７図は本発明の他の実施例の要部を示す縦
断面図、第８図は第７図の南矢印方向から見た平面図、
第９図は本発明のさら（１異なる他の実施例の要部を示
す縦断面図、第１０図は第９図のＸ矢印方向から見た平
面図、第１１図は本発明の第１０図と異なる他の実施例
の平面図、第１２図は本発明のさらに異なる他の実施例
の平面図である。 ２・・・ベローズ　　　　３・・・端板４・・・ガイド
　　　　　７．８・・・接合部ＬＯ，ＬＬ、Ｌ２．Ｌ３
・・・ガイド取付板（７３１７）　　代理人グｅ理士　
則　近　魔　佑　＜ｉｈか１名）第１図 第３図 第５図 第６図 第７図 ／Ｑ＾　　　　　　６ｂ 第９図Figure 1 is a vertical cross-sectional view showing the configuration of the guide attachment part of a conventional vacuum valve, Figure 2 is a plan view seen from the direction of the ■ arrow in Figure 1, and Figure 3 is a conventional vacuum valve different from Figure 1. FIG. 4 is a plan view as seen from the direction of the arrow ``■'' in FIG. 3. FIG. 6 is a plan view seen from the direction of the arrow ■ in FIG. 5, FIG. 7 is a longitudinal sectional view showing the main parts of another embodiment of the present invention, and FIG. 8 is a plan view seen from the direction of the south arrow in FIG. 7. Plan view,
FIG. 9 is a longitudinal sectional view showing the essential parts of another embodiment of the present invention (1 different from the other), FIG. 10 is a plan view seen from the direction of the arrow X in FIG. 9, and FIG. A plan view of another embodiment different from the figure, and FIG. 12 is a plan view of still another embodiment of the present invention. 2... Bellows 3... End plate 4... Guide 7.8.・・Joint parts LO, LL, L2.L3
...Guide mounting plate (7317) Agent
Nori Kon Mayu <ih or 1 person) Figure 1 Figure 3 Figure 5 Figure 6 Figure 7/Q^ 6b Figure 9

Claims (2)

【特許請求の範囲】[Claims] （１）絶縁容器とその両端に取付けられた金具及び端板
とで構成された真空容器内に、相対的に接離可能な一対
の電極を配置し、この電極の一方に増刊けられた可動軸
は、ベローズを介して前記端板と接続されて軸方向に移
動可能にされ、前記可動軸の外周部にガイドを設け、と
のガイドを被うように設けたガイド取付は板を、前記端
板と点溶接によつ゛〔取付けることによりガイドを固定
したものにおいて、前記点溶接が前記ベローズと前記端
板の接合部及び前記金具と前記端板の接合部との間に位
置することを特徴とする真空バルブ。(1) A pair of electrodes that can be relatively connected to and separated from each other is arranged in a vacuum container consisting of an insulating container and metal fittings and end plates attached to both ends of the container. The shaft is connected to the end plate via a bellows so as to be movable in the axial direction, and a guide is provided on the outer periphery of the movable shaft, and the guide mounting plate is provided to cover the guide. In the case where the guide is fixed by attaching the guide to the end plate by spot welding, the spot weld is located between the joint between the bellows and the end plate and the joint between the metal fitting and the end plate. Features a vacuum valve. （２）　　ガイド取付は板の外周を少なくとも１つ以上
の直線部を肩する形状としたでとを特徴とする特許請求
の範囲第（１）項記載の真空バルブ。(2) The vacuum valve according to claim (1), wherein the guide is attached by shaping the outer periphery of the plate to shoulder at least one straight section.