JPS6138275A - Gas cock - Google Patents

Abstract

PURPOSE:To uniformly hold grease, by protruding over the whole periphery a central surface corresponding to a core gas passing hole and forming a fine gap, which holds the grease, in the upper and the bottom of a protruded surface. CONSTITUTION:A protruding surface 6, being formed on a conical surface corresponding to a core gas passing hole 5, is brought into contact with a core contact surface 3 in a cock main unit 2, and the protruding surface 6 forms in its upper and bottom part a fine gap 7, 8. While a core 1 equips a tapered peripheral a fine gap 7, 8. While a core 1 equips a tapered peripheral surface similarly to those in the past, and the protruding surface may be provided in the central part mutually opposed to the gas passing hole 5 formed in the core 1 in a cock contact surface of the cock main unit 2. The core 1, holding grease in the fine gaps 7, 8 without causing the grease to be exhausted, improves grease holding performance and opening and closing durability performance, also increasing gas-tight performance.

Description

【発明の詳細な説明】 〔Ｍ東上の利用分野〕 本発明はガスコンタに係り、符に閉子ｍ動囲のグリース
保持能力の同上ゲ図ったガスコックに関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of M Tojo] The present invention relates to a gas contactor, and relates to a gas cock which is designed to have a grease retaining ability with a closed valve movement range of m.

〔従来の技術〕[Conventional technology]

従来、閉子の摺動面を円錐形にしたガスコックにおいて
は１円錐面のテーパ一度はン〜￥が一般的であり、コッ
ク本体の閉子接触面及び閉子〇テーパ一度が合致するよ
うに加工していた◎〔発明が解決し、１′うとする問題
点〕しかしながら、閉子の円＃ｉ面と、本体の閉子接触
向とを一致するＪうに加工することは不ｎＪ能であり、
実際は４３図（α）に示すＪうに閉子１１）の上方にコ
ック本体（２）の閉子妥触０１１　ｔ８７が当ったり、
同図（ｂ）のＪ５にｆ方が、当たり、摺動面か均一に当
たるようになっていない。Conventionally, in gas cocks where the sliding surface of the closing member is conical, the taper of one conical surface is generally 1° to 30°, so that the closing contact surface of the cock body and the closing member taper once match. ◎ [Problem that the invention attempts to solve and 1'] However, it is impossible to machine the circle #i surface of the closure and the contact direction of the closure of the main body so that they match. ,
In reality, the closure 011 t87 of the cock body (2) hits the upper part of the J sea closure 11) shown in Figure 43 (α),
The f side hits J5 in the same figure (b), and the sliding surface does not hit evenly.

そのため塊状では加工機械及び検査機械の精度上、摺ｍ
回の上又は下でλ〜３μ亀根曳の誤差が計容されている
。ところが前記した片当りのガスフックの開閉耐久試Ｈ
乞行うと、１万乃至２万回梅度で開閉操作トルクが増大
し、最悪の場合には開閉操作が不可能となり、ガスの漏
洩ぞ来たすおそれがある。Therefore, due to the accuracy of processing machines and inspection machines, it is difficult to print in lumps.
An error of λ to 3μ is included at the top or bottom of the rotation. However, the opening/closing durability test H of the one-sided gas hook mentioned above
If this is done, the opening/closing operation torque will increase after 10,000 to 20,000 cycles, and in the worst case, opening/closing operations will become impossible and there is a risk of gas leakage.

上記耐久試験で不良となった＃品？分解、観察すると、
第９図に示すＪうに片当９側の摺動面のグリース（４）
が枯渇して焼付き現象な起こしていた。#Product that was defective in the above durability test? When disassembled and observed,
Grease on the sliding surface of the J sea urchin abutment 9 side shown in Figure 9 (4)
was depleted, causing a burn-in phenomenon.

この原因は摺動凹の中央部円周面ではガス通過孔（６ン
によって余分なグリースが掻取られ、次に開閉操作時に
グリース（４）が摺動面に塗布、供給されるので、常に
グリースは保持され、又片当りとは逆側の摺動向は、該
ＩｆＩｗＪ回に生じる２〜３μ鴫の細隙によりグリース
が保持される。これに対して片当り部分の？＆動回はノ
心力が集中するためグリース（４）は閉子上方に排出さ
れて枯渇する。即ち均一にグリース乞保持することがで
きない。The reason for this is that excess grease is scraped off by the gas passage hole (6) on the circumferential surface of the central part of the sliding concave, and then grease (4) is applied and supplied to the sliding surface during opening and closing operations. The grease is retained, and the sliding motion on the opposite side of the one-sided contact is retained by the 2 to 3μ slit created in the IfIwJ rotation. Since the mental energy is concentrated, the grease (4) is discharged upwards and becomes depleted.In other words, the grease cannot be held evenly.

〔問題点ぞ解決するための手段〕[Means to solve the problem]

本発明の百円はθσ記従来の問題点ン解消しグリース保
持性能？同上させることにあり、そのため閉チリ円錐形
周囲又はコック本体の閉子接触四の一部、即ち閉子ガス
通過孔に対応する中央面を全周にわたり***させ隆Ｑ凹
の上下を云グリースぞ保持する？＠隙ヲ形成したもので
ある。The 100 yen of the present invention solves the conventional problems described in θσ and has grease retention performance? For this purpose, the periphery of the closed dust cone or a part of the closed contact 4 of the cock body, that is, the central surface corresponding to the closed gas passage hole, is raised all around and the upper and lower parts of the raised Q concave are coated with grease. Hold? @Gap was formed.

〔作用〕[Effect]

以上のように構成された本発明によると、摺動面の中央
部円錐面においては余分なグリースがガス通過孔内に掻
取られ、開閉操作時に摺動向にグリースが塗布、供給さ
れるため、常にグリースは保持されている。またＮ＃面
の上部円ｍ１１０および下部円錐面においては中央部円
周面に対してコ〜Ｓμ亀の細隙があるため、この部分に
グリースか保持される。According to the present invention configured as described above, excess grease is scraped off into the gas passage hole on the central conical surface of the sliding surface, and grease is applied and supplied to the sliding direction during opening/closing operations. Grease is always retained. Furthermore, in the upper circular m110 and the lower conical surface of the N# surface, there is a gap of K to Sμ with respect to the central circumferential surface, so that grease is retained in these portions.

〔実施例） 第１図は本発明の第１の実施例ケ示したもので閉子（１
）はガス通過孔（５）に対応する円＃Ｍ回に醋起閾（８
）を形属し、該***回（６）がコック本体（２）の閉子
接触＝　（８Ｊピーし噛起面（６〕の上下に細隙１７７
　（８ンン派生する。[Embodiment] Figure 1 shows the first embodiment of the present invention.
) is the activation threshold (8) at the circle #M times corresponding to the gas passage hole (5).
), and the raised turn (6) is in closed contact with the cock body (2) = (8J) and there is a slit 177 above and below the biting surface (6).
(Derived from 8.

又、第一図は本発明の第、２実施ｖＩｇ？示し、この実
施例で閉子（！）は従来と同様テーパー周［１１１ｔｅ
備えコック本体（２）のコック接触面（８）において、
閉子（１）に形成したガス通過孔（５）と相対する中央
部に***面（６躯設ける。そしてその上下％：細ＦＩＲ
１７３（８）となす。Also, Figure 1 shows the second implementation vIg? of the present invention. In this example, the closure (!) has a taper circumference [111te] as in the conventional case.
At the cock contact surface (8) of the cock body (2),
A raised surface (six) is provided in the center facing the gas passage hole (5) formed in the closure (1).
173(8).

（発明の効果〕 グリースは細１℃＋７１　＋８）に保持され従来のよう
に枯渇することがなく、グリース保持性能並びに開閉耐
久性能は同上し、気Ｖｆｊ注能も増す効果かある。(Effects of the Invention) Grease is maintained at a fine temperature of 1° C. +71° C. +8° C. and does not run out as in the conventional case, and the grease retention performance and opening/closing durability performance are the same as above, and the air Vfj injection ability is also increased.

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

図面の第７図は本発明に係るガスコックの一実施例？示
す岐萌正囲図、第コ図は他の要鳳例を示す縦断正圓図、
第３図及び第９図は従来例？示す縦断正囲図である。 ＋１１〜閉子、（２）〜コック本俸、＋８）〜閉子接触
曲。 （４）〜グリース、（５）〜ガス通過孔、＋６）　Ｌ６
５〜礒起囲、＋７１１８）〜ａＶＡ。Is Fig. 7 of the drawings an embodiment of the gas cock according to the present invention? The Kimoi square encircle diagram shown in the figure, the vertical square diagram showing other important examples,
Are Figures 3 and 9 conventional examples? FIG. +11 ~ Closure, (2) ~ Cook's salary, +8) ~ Closure contact song. (4) ~ Grease, (5) ~ Gas passage hole, +6) L6
5~Isokikai, +7118)~aVA.

Claims (1)

【特許請求の範囲】[Claims] コック本体と該コック本体内に収容される閉子の摺動面
を円錐形に成形したものにおいて、前記閉子のガス通過
孔の位置に相当する中央部周面、或いはコック本体の閉
子ガス通過孔に対応する内面全周を若干***させ、該隆
起面の上下に細隙を形成したことを特徴とするガスコッ
ク。In a cock body and a closing member housed in the cock body, the sliding surface of which is formed into a conical shape, the central peripheral surface corresponding to the position of the gas passage hole of the closing member, or the closing member gas of the cock body. A gas cock characterized in that the entire circumference of the inner surface corresponding to the passage hole is slightly raised, and slits are formed above and below the raised surface.