JP4731997B2 - Pipe fittings - Google Patents

Pipe fittings Download PDF

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Publication number
JP4731997B2
JP4731997B2 JP2005148035A JP2005148035A JP4731997B2 JP 4731997 B2 JP4731997 B2 JP 4731997B2 JP 2005148035 A JP2005148035 A JP 2005148035A JP 2005148035 A JP2005148035 A JP 2005148035A JP 4731997 B2 JP4731997 B2 JP 4731997B2
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Japan
Prior art keywords
sleeve
joint
pipe
tapered surface
fastening nut
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JP2005148035A
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JP2006322585A (en
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和男 岡田
公一朗 山下
義夫 堀
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Sekisui Jushi Corp
Takiron Co Ltd
Spacio Co Ltd
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Sekisui Jushi Corp
Takiron Co Ltd
Spacio Co Ltd
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Priority to JP2005148035A priority Critical patent/JP4731997B2/en
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Description

本発明は、パイプの継手部材に関し、特に、パイプの全周を筒状に保持することにより、パイプを強固に保持するとともに、継手部材の強度を大きく向上させることができるパイプの継手部材パイプの継手部材に関するものである。   The present invention relates to a pipe joint member, and in particular, a pipe joint member that can hold the pipe firmly by holding the entire circumference of the pipe in a cylindrical shape and can greatly improve the strength of the joint member. The present invention relates to a joint member.

従来のパイプの継手部材として、例えば、特許文献1に記載の継手部材が知られている。
この継手部材は、継手本体にパイプが挿入されるスリーブを形成し、このスリーブの先端部外周にテーパ面を設け、このテーパ面に続く円筒部の外周にねじを形成し、前記スリーブの先端からねじの後端に至る軸方向のスリットを円周方向に所要間隔をおいて複数設け、上記スリーブのねじに外側から螺合する締めナットの内周に、この締めナットの締着によりスリーブのテーパ面を内側に押圧するテーパ面を設けている。
As a conventional pipe joint member, for example, a joint member described in Patent Document 1 is known.
The joint member forms a sleeve into which a pipe is inserted into the joint body, a tapered surface is provided on the outer periphery of the tip of the sleeve, and a screw is formed on the outer periphery of the cylindrical portion following the tapered surface. A plurality of axial slits reaching the rear end of the screw are provided at a required interval in the circumferential direction, and the taper of the sleeve is secured by tightening the tightening nut on the inner periphery of the tightening nut screwed into the sleeve screw from the outside. A tapered surface that presses the surface inward is provided.

しかしながら、上記従来の継手部材は、パイプにかかる力がスリーブにかかるにもかかわらず、スリーブの先端からねじの後端に至るまで軸方向のスリットがあり、このスリーブの根元の残り少ない部分で継手部材が受ける力を支えなければならないことから、特に強い力のかかる用途に対して、継手部材が繰り返し使用を経た後では強度上不十分な場合があるという問題を有していた。
特開平8−170613号公報
However, the conventional joint member has an axial slit from the sleeve tip to the rear end of the screw even though the force applied to the pipe is applied to the sleeve. For this reason, there is a problem that the strength of the joint member may be insufficient after repeated use for an application in which a strong force is applied.
JP-A-8-170613

本発明は、上記従来のパイプの継手部材が有する問題点に鑑み、パイプの全周を筒状に保持することにより、パイプを強固に保持するとともに、継手部材の強度を大きく向上させることができるパイプの継手部材を提供することを目的とする。   In view of the problems of the conventional pipe joint member, the present invention can hold the pipe firmly by holding the entire circumference of the pipe in a cylindrical shape, and can greatly improve the strength of the joint member. An object of the present invention is to provide a pipe joint member.

上記目的を達成するため、本発明のパイプの継手部材は、パイプ端部が挿入される継手部が突設された継手本体と、パイプ端部に外嵌され、前記継手部に外側から螺合する締めナットと、該締めナットの内側に装着され、先端部が継手部の内側に挿入される可撓性のスリーブとを備え、該スリーブの先端部外周にテーパ面を形成するとともに、前記継手部の先端部内周に、前記締めナットの締着によりスリーブのテーパ面と摺接してスリーブの先端部を内側に押圧するテーパ面を形成し、前記締めナット及びスリーブに、スリーブが締めナットの軸方向に移動することを阻止する凹部と凸部の形状の嵌合部を形成したことを特徴とする。 In order to achieve the above object, a pipe joint member according to the present invention includes a joint body in which a joint part into which a pipe end part is inserted projects and a pipe end part that is externally fitted and screwed into the joint part from the outside. And a flexible sleeve that is attached to the inside of the fastening nut and has a tip portion inserted into the inside of the joint portion, and forms a tapered surface on the outer periphery of the tip portion of the sleeve. A tapered surface is formed on the inner periphery of the distal end portion of the portion by slidingly contacting the tapered surface of the sleeve by the tightening of the tightening nut and pressing the distal end portion of the sleeve inwardly. It is characterized in that a fitting portion having a concave and convex shape that prevents movement in the direction is formed .

この場合において、スリーブの先端部内周を、パイプの周面と行に形成するとともに、スリーブのテーパ面の角度を、継手部のテーパ面の切除部の角度に対して同じ角度以上の5゜〜20゜に形成し、かつ、スリーブの締めナットの締着面からの突出長さを、継手部のテーパ面の形成長さに対して同じ長さ以上に形成することができる。 In this case, the distal end portion inner periphery of the sleeve, and forming a peripheral surface and a flat ascending pipe, the angle of the tapered surface of the sleeve, the same angle over 5 degrees with respect to the angle of the cut portion of the tapered surface of the joint portion It formed in 20 °, and the length of projection from the clamping surface of the clamping nut sleeve can be formed over the same length for the formation length of the tapered surface of the joint portion.

本発明のパイプの継手部材によれば締めナットを締着することにより、継手部とスリーブのテーパ面同士を摺接してスリーブの先端部を縮径することができ、この縮径したスリーブによってパイプを強固に固定することができる。
そして、継手部のテーパ面に摺接するスリーブの先端部によってパイプの全周を無端筒状に保持することから、パイプを広い面積で強固に固定するとともに、継手部材の強度を大きく向上させることができる。
また、スリーブが締めナットの軸方向に移動することを阻止する嵌合部を、締めナット及びスリーブに形成することにより、締めナットを締着することにより、スリーブの先端部を確実に縮径することができ、この縮径したスリーブによってパイプを一層強固に固定することができるとともに、分解等した場合に締めナットとスリーブとが分離することを防止し、取扱性を向上することができる。
According to the pipe joint member of the present invention , by tightening the tightening nut, the tapered portion of the sleeve can be reduced in diameter by sliding the joint portion and the tapered surface of the sleeve, and the reduced diameter sleeve allows The pipe can be firmly fixed.
And since the entire circumference of the pipe is held in an endless cylindrical shape by the tip of the sleeve that is in sliding contact with the tapered surface of the joint, it is possible to firmly fix the pipe in a wide area and greatly improve the strength of the joint member. it can.
Further, by forming a fitting portion that prevents the sleeve from moving in the axial direction of the tightening nut in the tightening nut and the sleeve, the diameter of the tip of the sleeve is reliably reduced by tightening the tightening nut. In addition, the pipe can be more firmly fixed by the reduced-diameter sleeve, and it is possible to prevent the tightening nut and the sleeve from being separated when disassembled, thereby improving the handleability.

また、スリーブの先端部内周を、パイプの周面と行に形成するとともに、スリーブのテーパ面の角度を、継手部のテーパ面の切除部の角度に対して同じ角度以上の5゜〜20゜に形成し、かつ、スリーブの締めナットの締着面からの突出長さを、継手部のテーパ面の形成長さに対して同じ長さ以上に形成することにより、スリーブの先端部内周をパイプと略平行な関係を保ちながら内側に移動させることができ、これにより、パイプを均等に締着してより強固に固定することができる。 Further, the tip portion inner periphery of the sleeve, and forming a peripheral surface and a flat ascending pipe, the angle of the tapered surface of the sleeve, the same angle over 5 degrees with respect to the angle of the cut portion of the tapered surface of the joint portion 20 DEG is formed, and the protruding length from the fastening surface of the fastening nut of the sleeve, by forming the above same length for the formation length of the tapered surface of the joint portion, the tip portion inner periphery of the sleeve The pipe can be moved inward while maintaining a substantially parallel relationship with the pipe, whereby the pipe can be evenly fastened and fixed more firmly.

以下、本発明のパイプの継手部材の実施の形態を、図面に基づいて説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a pipe joint member of the present invention will be described with reference to the drawings.

図1〜図5に、本発明のパイプの継手部材の一実施例を示す。
このパイプの継手部材は、パイプPの端部が挿入される継手部10が突設された継手本体1と、パイプPの端部に外嵌され、前記継手部10に外側から螺合する締めナット2と、該締めナット2の内側に装着され、先端部が継手部10の内側に挿入される可撓性のスリーブ3とを備え、該スリーブ3の先端部外周にテーパ面31を形成するとともに、前記継手部10の先端部内周に、前記締めナット2の締着によりスリーブ3のテーパ面31と摺接してスリーブ3の先端部を内側に押圧するテーパ面12を形成している。
1 to 5 show an embodiment of a pipe joint member of the present invention.
The pipe joint member includes a joint body 1 having a joint portion 10 into which an end portion of the pipe P is inserted and a fitting body that is externally fitted to the end portion of the pipe P and screwed into the joint portion 10 from the outside. A nut 2 and a flexible sleeve 3 that is attached to the inside of the tightening nut 2 and has a distal end portion inserted into the inside of the joint portion 10 are provided. A tapered surface 31 is formed on the outer periphery of the distal end portion of the sleeve 3. At the same time, a tapered surface 12 is formed on the inner periphery of the distal end portion of the joint portion 10 so as to be in sliding contact with the tapered surface 31 of the sleeve 3 by the fastening of the fastening nut 2 and press the distal end portion of the sleeve 3 inward.

継手本体1は、本実施例では、ポリエステル樹脂等の硬質の合成樹脂からなり、補強リブ13を設けて4方向に合計4個の継手部10が突設されており、各継手部10には、外周に締めナット2が螺合する雄ねじ11が設けられている。
継手部10は、パイプPの外径とほぼ等しい保持穴14を有するとともに、その先端部内周には、締めナット2の締着によりスリーブ3のテーパ面31と摺接してスリーブ3の先端部を内側に押圧するテーパ面12が形成されている。
継手部10のテーパ面12は、後述のスリーブ3のテーパ面31との関係で、スリーブ3のテーパ面31の角度θ3が継手部10のテーパ面12の切除部の角度θ1に対して略同角度以上となるように形成されており、錯角となるこれらの角度をこのような関係に形成することにより、パイプPの周面と略平行に形成したスリーブ3の先端部内周を、略平行な関係を保ちながら内側に移動させることができ、これにより、パイプPを均等に締着してより強固に固定することができる。
In the present embodiment, the joint body 1 is made of a hard synthetic resin such as polyester resin, and is provided with reinforcing ribs 13 and a total of four joint portions 10 projecting in four directions. A male screw 11 is provided around the outer periphery of the fastening nut 2.
The joint portion 10 has a holding hole 14 that is substantially equal to the outer diameter of the pipe P, and the tip end portion of the sleeve 3 is slidably brought into contact with the tapered surface 31 of the sleeve 3 by fastening of the fastening nut 2 at the inner periphery of the tip portion. A tapered surface 12 that presses inward is formed.
The tapered surface 12 of the joint portion 10 has a relationship with a tapered surface 31 of the sleeve 3 described later, so that the angle θ3 of the tapered surface 31 of the sleeve 3 is substantially the same as the angle θ1 of the cut portion of the tapered surface 12 of the joint portion 10. By forming these angles that are complex angles in such a relationship, the inner periphery of the tip of the sleeve 3 formed substantially parallel to the peripheral surface of the pipe P is substantially parallel. It can be moved inward while maintaining the relationship, whereby the pipe P can be evenly fastened and fixed more firmly.

なお、本実施例においては、4個の継手部10を突設した継手本体1を例示したが、継手本体1に突設する継手部10の個数は、これに限定されず、また、継手部10を突設する角度も任意に設計することができる。   In addition, in the present Example, although the joint main body 1 which protruded the four joint parts 10 was illustrated, the number of the joint parts 10 protruding from the joint main body 1 is not limited to this, Moreover, a joint part The angle at which 10 is projected can also be designed arbitrarily.

締めナット2は、本実施例では、ポリエステル樹脂等の硬質の合成樹脂からなり、パイプPの端部に外嵌される筒状を呈している。
この締めナット2は、継手部側の内周に継手部10の雄ねじ11と螺合する雌ねじ21を有するとともに、内周の中間部には、スリーブ3に嵌合する凸部22が設けられている。
締めナット2の雌ねじ21とスリーブ3の先端部の間には、継手部10の先端部が挿入される空隙が形成されている。
In this embodiment, the fastening nut 2 is made of a hard synthetic resin such as a polyester resin, and has a cylindrical shape that is fitted on the end of the pipe P.
The fastening nut 2 has a female screw 21 that is screwed with the male screw 11 of the joint portion 10 on the inner periphery on the joint portion side, and a convex portion 22 that is fitted to the sleeve 3 is provided at an intermediate portion of the inner periphery. Yes.
Between the female screw 21 of the fastening nut 2 and the distal end portion of the sleeve 3, a gap into which the distal end portion of the joint portion 10 is inserted is formed.

スリーブ3は、本実施例では、ウレタン樹脂等のある程度変形が可能で、可撓性を有する合成樹脂からなり、切れ目のない筒状に形成されている。
スリーブ3の先端部内周は、パイプPの周面と略平行に形成するとともに、先端部外周は、締めナット2の締着により継手部10のテーパ面12と摺接するテーパ面31に形成する。
そして、スリーブ3のテーパ面31の角度θ3を、継手部10のテーパ面12の切除部の角度θ1に対して略同角度以上(略同角度か、若干大きめ(+1゜〜3゜程度))に形成し(特に限定されるものではないが、θ1:5゜〜20゜、θ3:5゜〜20゜に形成することが好ましく、本実施例においては、θ1:12゜程度、θ3:12゜程度に形成するようにしている。)、かつ、スリーブ3の締めナット2の締着面23からの突出長さL3を、継手部10のテーパ面12の形成長さL1に対して略同長さ以上(略同長さか、若干長め(+1〜3mm程度))に形成するようにしている(特に限定されるものではないが、L3−L1=0〜3mmに形成することが好ましく、本実施例においては、L3−L1=1mm程度に形成するようにしている。)。
また、スリーブ3の外周の中間部には、スリーブ3が締めナット2の軸方向に移動しないように、前記締めナット2の凸部22に嵌合する凹部32が形成されている。
なお、締めナット2とスリーブ3との嵌合部の構造は、スリーブ3が締めナット2の軸方向に移動することを阻止できるものである限りにおいて、凹部と凸部の形状を逆にする等、任意の形状に形成することができる。
In this embodiment, the sleeve 3 can be deformed to some extent, such as urethane resin, is made of a flexible synthetic resin, and is formed in a continuous cylindrical shape.
The inner periphery of the distal end portion of the sleeve 3 is formed substantially parallel to the peripheral surface of the pipe P, and the outer periphery of the distal end portion is formed on a tapered surface 31 that is in sliding contact with the tapered surface 12 of the joint portion 10 by fastening of the fastening nut 2.
The angle θ3 of the tapered surface 31 of the sleeve 3 is substantially equal to or larger than the angle θ1 of the cut portion of the tapered surface 12 of the joint portion 10 (approximately the same angle or slightly larger (about + 1 ° to 3 °)). (It is not particularly limited, but it is preferable to form θ1: 5 ° to 20 ° and θ3: 5 ° to 20 °. In this embodiment, θ1: about 12 °, θ3: 12 And the protruding length L3 of the fastening nut 2 of the sleeve 3 from the fastening surface 23 is substantially the same as the forming length L1 of the tapered surface 12 of the joint portion 10. More than the length (substantially the same length or slightly longer (about 1 to 3 mm)) (although it is not particularly limited, it is preferable to form L3-L1 = 0 to 3 mm, In the embodiment, L3-L1 = 1 mm is formed. To have.).
In addition, a concave portion 32 that fits into the convex portion 22 of the tightening nut 2 is formed in an intermediate portion of the outer periphery of the sleeve 3 so that the sleeve 3 does not move in the axial direction of the tightening nut 2.
In addition, as long as the structure of the fitting part of the tightening nut 2 and the sleeve 3 can prevent the sleeve 3 from moving in the axial direction of the tightening nut 2, the shapes of the concave portion and the convex portion are reversed. , Can be formed in any shape.

次に、本実施例のパイプの継手部材の使用方法を説明する。
まず、図3に示すように、パイプPの端部に、パイプPがスリーブ3を挿通するように締めナット2を通し、パイプPを継手部10の保持穴14に挿入する。
そして、図4に示すように、締めナット2を継手部10に螺合して締着すると、図5に示すように、継手部10のテーパ面12がスリーブ3のテーパ面31に摺接して内側に押圧しながら、スリーブ3の先端部を縮径させるとともに、継手部10のテーパ面12とパイプPの外周面との隙間に、スリーブ3の先端部が楔のように入り込むようになる。
なお、スリーブ3は、上記のとおり、変形可能なウレタン樹脂等の合成樹脂からなるが、スリーブ3を構成する合成樹脂が柔軟すぎると、継手部10のテーパ面12とパイプPの外周面との隙間にスリーブ3の先端部が入り込みにくくなるとともに、スリーブ3によるパイプPの保持力が得にくくなるため好ましくない。
これにより、パイプPは、この縮径したスリーブ3によって保持され、スリーブ3と締めナット2を介して継手部10に強固に固定される。
Next, the usage method of the joint member of the pipe of a present Example is demonstrated.
First, as shown in FIG. 3, the fastening nut 2 is passed through the end portion of the pipe P so that the pipe P passes through the sleeve 3, and the pipe P is inserted into the holding hole 14 of the joint portion 10.
As shown in FIG. 4, when the fastening nut 2 is screwed into the joint portion 10 and fastened, the tapered surface 12 of the joint portion 10 comes into sliding contact with the tapered surface 31 of the sleeve 3 as shown in FIG. 5. While pressing the inside, the diameter of the tip of the sleeve 3 is reduced, and the tip of the sleeve 3 enters the gap between the tapered surface 12 of the joint 10 and the outer peripheral surface of the pipe P like a wedge.
As described above, the sleeve 3 is made of a synthetic resin such as a deformable urethane resin. However, if the synthetic resin constituting the sleeve 3 is too flexible, the sleeve 3 has a tapered surface 12 and the outer peripheral surface of the pipe P. This is not preferable because the tip of the sleeve 3 does not easily enter the gap and the holding force of the pipe P by the sleeve 3 is difficult to obtain.
As a result, the pipe P is held by the sleeve 3 having a reduced diameter, and is firmly fixed to the joint portion 10 via the sleeve 3 and the fastening nut 2.

このように、本実施例のパイプの継手部材は、パイプPの端部が挿入される継手部10が突設された継手本体1と、パイプPの端部に外嵌され、前記継手部10に外側から螺合する締めナット2と、該締めナット2の内側に装着され、先端部が継手部10の内側に挿入される可撓性のスリーブ3とを備え、該スリーブ3の先端部外周にテーパ面31を形成するとともに、前記継手部10の先端部内周に、前記締めナット2の締着によりスリーブ3のテーパ面31と摺接してスリーブ3の先端部を内側に押圧するテーパ面12を形成することから、締めナット2を締着することにより、継手部10とスリーブ3のテーパ面同士を摺接してスリーブ3の先端部を縮径することができ、この縮径したスリーブ3によってパイプPを強固に固定することができる。
そして、継手部10のテーパ面12に摺接するスリーブ3の先端部によってパイプPの全周を無端筒状に保持することから、パイプPを広い面積で強固に固定するとともに、継手部材の強度を大きく向上させることができる。
Thus, the joint member of the pipe of the present embodiment is externally fitted to the joint body 1 in which the joint portion 10 into which the end portion of the pipe P is inserted and the end portion of the pipe P is protruded. A fastening nut 2 that is screwed to the outside from the outside, and a flexible sleeve 3 that is attached to the inside of the fastening nut 2 and that has a tip portion inserted inside the joint portion 10. A tapered surface 31 is formed on the inner periphery of the distal end portion of the joint portion 10 so as to be in sliding contact with the tapered surface 31 of the sleeve 3 by the fastening nut 2 and press the distal end portion of the sleeve 3 inward. Therefore, by tightening the tightening nut 2, the tapered surfaces of the joint portion 10 and the sleeve 3 can be brought into sliding contact with each other to reduce the diameter of the tip of the sleeve 3. Fix pipe P firmly Can.
And since the whole periphery of the pipe P is hold | maintained in an endless cylindrical shape by the front-end | tip part of the sleeve 3 which slidably contacts with the taper surface 12 of the joint part 10, while fixing the pipe P firmly in a wide area, the intensity | strength of a joint member is improved. It can be greatly improved.

また、スリーブ3の先端部内周を、パイプPの周面と略平行に形成するとともに、スリーブ3のテーパ面31の角度θ3を、継手部10のテーパ面12の切除部の角度θ1に対して略同角度以上に形成し、かつ、スリーブ3の締めナット2の締着面23からの突出長さL3を、継手部10のテーパ面12の形成長さL1に対して略同長さ以上に形成することにより、スリーブ3の先端部内周をパイプPと略平行な関係を保ちながら内側に移動させることができ、これにより、パイプPを均等に締着してより強固に固定することができる。   Further, the inner periphery of the tip of the sleeve 3 is formed substantially parallel to the peripheral surface of the pipe P, and the angle θ3 of the tapered surface 31 of the sleeve 3 is set to the angle θ1 of the cut portion of the tapered surface 12 of the joint portion 10. The projection length L3 of the sleeve 3 from the fastening surface 23 of the fastening nut 2 is set to be substantially equal to or greater than the same length as the formation length L1 of the tapered surface 12 of the joint portion 10. By forming it, the inner periphery of the tip of the sleeve 3 can be moved inward while maintaining a substantially parallel relationship with the pipe P, whereby the pipe P can be evenly fastened and fixed more firmly. .

また、スリーブ3が締めナット2の軸方向に移動することを阻止する嵌合部22、32を、締めナット2及びスリーブ3に形成することにより、締めナット2を締着する際にスリーブ3が締めナット2の軸方向に移動することにより逃げることを防止し、スリーブ3の先端部を確実に縮径させるとともに、継手部10のテーパ面12とパイプPの外周面との隙間に、スリーブ3の先端部が楔のように入り込ませて、この縮径したスリーブ3によってパイプPを一層強固に固定することができるとともに、分解等した場合に締めナット2とスリーブ3とが分離することを防止し、取扱性を向上することができる。   Further, by forming fitting portions 22 and 32 in the tightening nut 2 and the sleeve 3 that prevent the sleeve 3 from moving in the axial direction of the tightening nut 2, the sleeve 3 is secured when the tightening nut 2 is fastened. The axial movement of the fastening nut 2 prevents the escape of the sleeve 3, the diameter of the tip of the sleeve 3 is reliably reduced, and the sleeve 3 is inserted into the gap between the tapered surface 12 of the joint 10 and the outer peripheral surface of the pipe P. The pipe P can be more firmly fixed by the reduced diameter sleeve 3, and the fastening nut 2 and the sleeve 3 are prevented from separating when disassembled. In addition, the handleability can be improved.

以上、本発明のパイプの継手部材について、その実施例に基づいて説明したが、本発明は上記実施例に記載した構成に限定されるものではなく、その趣旨を逸脱しない範囲において適宜その構成を変更することができる。   As mentioned above, although the joint member of the pipe of the present invention was explained based on the example, the present invention is not limited to the composition indicated in the above-mentioned example, and the composition is suitably changed in the range which does not deviate from the meaning. Can be changed.

本発明のパイプの継手部材は、パイプの全周を筒状に保持することにより、パイプを強固に保持するとともに、継手部材の強度を大きく向上させるという特性を有していることから、例えば、種々の長さのパイプを接続し、棚やテーブル、椅子等のスツール、各種構造物を組み立てる継手部材の用途に好適に用いることができる。   Since the joint member of the pipe of the present invention has a characteristic of holding the pipe firmly by holding the entire circumference of the pipe in a cylindrical shape and greatly improving the strength of the joint member. By connecting pipes of various lengths, it can be suitably used for joint members for assembling stools such as shelves, tables, and chairs, and various structures.

本発明のパイプの継手部材の一実施例を示す斜視図である。It is a perspective view which shows one Example of the coupling member of the pipe of this invention. 同パイプの継手部材を示す分解斜視図である。It is a disassembled perspective view which shows the coupling member of the same pipe. 同組み立て第1段階を示す断面図である。It is sectional drawing which shows the same assembly 1st step. 同組み立て第2段階を示す断面図である。It is sectional drawing which shows the same assembly 2nd step. 同組み立て第3段階を示す断面図である。It is sectional drawing which shows the same assembly 3rd step.

1 継手本体
10 継手部
11 雄ねじ
12 テーパ面
13 補強リブ
14 保持穴
2 締めナット
21 雌ねじ
22 凸部(嵌合部)
23 締着面
3 スリーブ
31 テーパ面
32 凹部(嵌合部)
θ1 継手部のテーパ面の切除部の角度
θ3 スリーブのテーパ面の角度
L1 継手部のテーパ面の形成長さ
L3 スリーブの締めナットの締着面からの突出長さ
DESCRIPTION OF SYMBOLS 1 Joint body 10 Joint part 11 Male thread 12 Tapered surface 13 Reinforcement rib 14 Holding hole 2 Clamping nut 21 Female thread 22 Convex part (fitting part)
23 Fastening surface 3 Sleeve 31 Tapered surface 32 Recessed part (fitting part)
θ1 Angle of the cut portion of the tapered surface of the joint portion θ3 Angle of the tapered surface of the sleeve L1 Length of formation of the tapered surface of the joint portion L3 Projection length from the fastening surface of the fastening nut of the sleeve

Claims (2)

パイプ端部が挿入される継手部が突設された継手本体と、パイプ端部に外嵌され、前記継手部に外側から螺合する締めナットと、該締めナットの内側に装着され、先端部が継手部の内側に挿入される可撓性のスリーブとを備え、該スリーブの先端部外周にテーパ面を形成するとともに、前記継手部の先端部内周に、前記締めナットの締着によりスリーブのテーパ面と摺接してスリーブの先端部を内側に押圧するテーパ面を形成し、前記締めナット及びスリーブに、スリーブが締めナットの軸方向に移動することを阻止する凹部と凸部の形状の嵌合部を形成したことを特徴とするパイプの継手部材。 A joint body in which a joint portion into which a pipe end portion is inserted is projected; a fastening nut that is externally fitted to the pipe end portion and screwed into the joint portion from the outside; and a tip end portion that is attached to the inside of the fastening nut. And a flexible sleeve to be inserted inside the joint portion, and a tapered surface is formed on the outer periphery of the tip portion of the sleeve, and the sleeve is fastened to the inner periphery of the tip portion of the joint portion by fastening the fastening nut. A tapered surface is formed in sliding contact with the tapered surface to press the tip of the sleeve inward, and a fitting of a concave and convex shape that prevents the sleeve from moving in the axial direction of the fastening nut is formed on the fastening nut and the sleeve. A pipe joint member characterized in that a joint is formed . スリーブの先端部内周を、パイプの周面と行に形成するとともに、スリーブのテーパ面の角度を、継手部のテーパ面の切除部の角度に対して同じ角度以上の5゜〜20゜に形成し、かつ、スリーブの締めナットの締着面からの突出長さを、継手部のテーパ面の形成長さに対して同じ長さ以上に形成したことを特徴とする請求項1記載のパイプの継手部材。 The distal end portion inner periphery of the sleeve, and forming a peripheral surface and a flat ascending pipe, the angle of the tapered surface of the sleeve, at the same angle over 5 ° to 20 ° with respect to the angle of the cut portion of the tapered surface of the joint portion 2. The pipe according to claim 1, wherein the length of the protruding portion of the fastening nut of the sleeve formed from the fastening surface is equal to or longer than the length of the tapered surface of the joint. Joint member.
JP2005148035A 2005-05-20 2005-05-20 Pipe fittings Expired - Fee Related JP4731997B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5232011A (en) * 1975-09-05 1977-03-10 Tsuyoshi Shirabe Mold for threeearmed ring
JPS5654971A (en) * 1979-10-11 1981-05-15 Yoshio Shimizu Electric discharge type generator driver
JPH0277391A (en) * 1988-09-14 1990-03-16 Suzuki Motor Co Ltd Bilge water drainage device of water jet propulsion vessel
JP2003194268A (en) * 2001-12-28 2003-07-09 Katsuyuki Omura Stainless pipe joint for piping
JP2004019775A (en) * 2002-06-14 2004-01-22 Harakkusu Kk Expansible rod

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