JPS6023386U

JPS6023386U - union fittings

Info

Publication number: JPS6023386U
Application number: JP11513783U
Authority: JP
Inventors: 松葉　悟
Original assignee: 日立金属株式会社
Priority date: 1983-07-26
Filing date: 1983-07-26
Publication date: 1985-02-18

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図は従来のユニオン継手を示す部分断面図、第２図
は本考案の一実施例を示す部分断面図、第３図はシール
部の拡大断面図である。１：ユニオンネジ、２：ユニオンツバ、３：ユニオンナ
ット、１１：シート面、２１：突出部、２２：シール面
、ｔ：シール面の肉厚、Ｄ＝同郊外径寸法Ｌ：同長さ、
α：シート面のテーパ角度。FIG. 1 is a partial sectional view showing a conventional union joint, FIG. 2 is a partial sectional view showing an embodiment of the present invention, and FIG. 3 is an enlarged sectional view of a seal portion. 1: Union screw, 2: Union collar, 3: Union nut, 11: Seat surface, 21: Projection, 22: Seal surface, t: Thickness of seal surface, D = Same outer diameter dimension L: Same length,
α: Taper angle of the sheet surface.

Claims

【実用新案登録請求の範囲】１　管軸方向内側寄りの端部外周に雄ねじを有し、端部
内側にシート面を設けたユニオンネジと、管軸方向内側
寄りの外周に鍔を有し端部にシール面を設けたユニオン
ツバと、前方内側に前記雄ねじと螺合する雌ねじを有し
後端内側に錫を設けたユニオンナットとからなるユニオ
ン継手において、前記ユニオンツバのシール面の肉厚を
該シール面外径寸法の１．５〜７．５％に形成したこと
を特徴とするユニオン継手。２　実用新案登録請求の範囲第１項記載において、前記
ユニオンツバのシール面を形成する管軸方向の長さは前
記シール面外径寸法の５〜３０％であるユニオン継手。３　実用新案登録請求の範囲第１項または第２項の記載
において、前記ユニオンネジのシート面はテーパ角度が
６０°以下の内窄まりのテーパ面に形成されているユニ
オン継手。[Claims for Utility Model Registration] 1. A union screw having a male thread on the outer periphery of the end on the inner side in the axial direction and a seat surface on the inner side of the end, and a union screw with a flange on the outer periphery on the inner side in the axial direction of the pipe. In a union joint consisting of a union collar that has a sealing surface on the part thereof, and a union nut that has a female thread on the inside front side that engages with the male thread and has tin on the inside rear end, the wall thickness of the sealing surface of the union collar A union joint characterized in that the sealing surface has an outer diameter of 1.5 to 7.5%. 2 Utility Model Registration Scope of Claim 1 The union joint according to claim 1, wherein the length of the union collar in the tube axis direction forming the sealing surface is 5 to 30% of the outer diameter dimension of the sealing surface. 3 Utility Model Registration The union joint according to claim 1 or 2, wherein the seat surface of the union screw is formed into an inner tapered surface with a taper angle of 60 degrees or less.