JPH0369786U - - Google Patents

Description

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

第１図乃至第６図は本考案の一実施例を示し、
第１図はナツト締付前の要部断面図、第２図はナ
ツト締付後の要部断面図、第３図はリテーナの斜
視図、第４図乃至第６図は別の実施例のリテーナ
を示し、第４図、第５図はその要部断面図、第６
図はその中央縦断面図、第７図は従来技術を示す
袋ナツト締付の要部断面図である。 １０……本体、１１……めねじ、１２……前テ
ーパ面、１３……平行内面、１５……管端突当面
、１７……ゴムリング、２０……ナツト、２１…
…おねじ、２２……押当面、３０……リテーナ、
３１……金属製部材、３２……切欠き、３３……
ストツパ、４０……フレキ管。 1 to 6 show an embodiment of the present invention,
Fig. 1 is a sectional view of the main part before tightening the nut, Fig. 2 is a sectional view of the main part after tightening the nut, Fig. 3 is a perspective view of the retainer, and Figs. 4 to 6 are of another embodiment. Figures 4 and 5 are sectional views of the main parts, and Figure 6 is a sectional view of the retainer.
The figure is a central vertical cross-sectional view, and FIG. 7 is a cross-sectional view of a main part of tightening a cap nut showing the prior art. 10...Main body, 11...Female thread, 12...Front tapered surface, 13...Parallel inner surface, 15...Pipe end abutment surface, 17...Rubber ring, 20...Nut, 21...
...Male thread, 22...Press surface, 30...Retainer,
31... Metal member, 32... Notch, 33...
Stoppa, 40...Flexible pipe.

Claims (1)

【実用新案登録請求の範囲】 断面が波形形状のフレキ管を接続する管継手で
あつて、端部内周にめねじと該めねじの奥に前テ
ーパ面と該前テーパ面に続く奥側に平行内面と該
平行内面の奥に管端突当面を有す本体と、 前記本体のめねじに螺合し中央側端部に押当面
を有すナツトと、 前記本体の前テーパ面とナツトの押当面との間
に係止された断面が接続するフレキ管側に向つて
Ｕ字状で該Ｕ字状の両端内径が前記管の外径より
大きく周方向の一端が縮径可能なごとく切欠れた
金属製部材と該金属製部材内に内径が前記管の外
径より小さく拡縮径可能なストツパを有すリテー
ナとからなり、 前記本体にナツトを螺合してリテーナを係止し
た状態でナツトの後端から前記フレキ管を差込む
ことによりリテーナ内のストツパが拡径して管端
が本体の突当面に当接され、この後ナツトを締付
けることにより前記リテーナが本体の平行内面側
に移動されると共に縮径され、金属製部材の内径
側両端がフレキ管の波形と係合してフレキ管の先
端波形部を本体の管端突当面に圧着することを特
徴とするフレキ管用継手。[Claim for Utility Model Registration] A pipe joint for connecting flexible pipes with a corrugated cross section, which has a female thread on the inner periphery of the end, a front tapered surface behind the female thread, and a rear side continuing from the front tapered surface. a main body having a parallel inner surface and a tube end abutment surface at the back of the parallel inner surface; a nut that is screwed into the female thread of the main body and has a contact surface at the center end; and a front tapered surface of the main body and the nut. The cross section locked between the pressing surface is U-shaped toward the connecting flexible tube side, and the inner diameter of both ends of the U-shape is larger than the outer diameter of the tube and one end in the circumferential direction is cut out so that the diameter can be reduced. and a retainer having a stopper in the metal member whose inner diameter is smaller than the outer diameter of the tube and which can be expanded and contracted, and when the retainer is locked by screwing a nut onto the main body. By inserting the flexible tube from the rear end of the nut, the stopper inside the retainer expands in diameter and the tube end comes into contact with the abutting surface of the main body.After this, by tightening the nut, the retainer moves to the parallel inner surface of the main body. A joint for a flexible pipe, characterized in that the metal member is moved and reduced in diameter, and both ends of the inner diameter side of the metal member engage with the waveform of the flexible pipe to press the waveform part of the tip of the flexible pipe to the abutment surface of the pipe end of the main body.