JP2015108407A5

JP2015108407A5 -

Info

Publication number: JP2015108407A5
Application number: JP2013251400A
Authority: JP
Filing date: 2013-12-04
Publication date: 2017-01-12
Anticipated expiration: 2033-12-04

Description

（９）上記形態の管継手において、さらに、前記内孔において前記弾性部よりも径方向において内側に位置し、前記挿入方向に移動可能な移動片を備え、前記弾性部は、前記軸線に沿った方向に圧縮および伸張を行う圧縮コイルばねと；前記圧縮コイルばねにおける前記挿入方向の先端である第１端に接する規制用部材と；前記圧縮コイルばねにおける前記反対方向の先端である第２端に接すると共に、前記規制用部材と接触可能なガイド部材と、を有し、前記ガイド部材は、前記管が前記内孔に前記所定の長さ以上挿入されていない場合に、前記第２端に接すると共に、前記規制用部材に接して前記規制用部材の前記挿入方向への移動を抑制し、前記ガイド部材と前記規制用部材とは、前記管が前記内孔に前記所定の長さ以上挿入されていない場合に、前記圧縮コイルばねを、前記軸線に沿った方向に挟持することにより、前記圧縮コイルばねの伸張を制限し、前記移動片は、前記管が前記内孔に前記所定の長さ以上挿入されていない場合に、前記ガイド部材が前記規制用部材に接するように前記ガイド部材の支持を実行し、前記管が前記内孔に前記所定の長さ以上挿入されている場合に、前記支持を実行しないことにより、前記ガイド部材と前記規制用部材とによる前記圧縮コイルばねの伸張の制限を解除してもよい。この形態の管継手によれば、弾性部を管継手に組み入れる前において、規制用部材とガイド部材とで圧縮コイルばねを挟持し、移動片でガイド部材を支持することにより、圧縮コイルばねと規制用部材とガイド部材と移動片とを一体化することができる。このため、これらの部材を容易に管継手に組み入れることができる。
(9) In the pipe joint according to the above aspect, the pipe joint further includes a moving piece that is positioned radially inward of the inner hole and movable in the insertion direction in the inner hole, and the elastic part extends along the axis. A compression coil spring that compresses and expands in a predetermined direction; a regulating member that contacts a first end that is a tip in the insertion direction of the compression coil spring; a second end that is a tip in the opposite direction of the compression coil spring And a guide member that can contact the regulating member, and the guide member is provided at the second end when the tube is not inserted into the inner hole for a predetermined length or more. The guide member and the regulating member are inserted into the inner hole more than the predetermined length by contacting the regulating member and suppressing the movement of the regulating member in the insertion direction. Has been If have, the compression coil spring, by pinching in a direction along the axis, to limit the stretching of said compression coil spring, the moving piece, said tube said predetermined length or longer into the bore When the guide member is not inserted, the guide member is supported so that the guide member is in contact with the regulating member, and when the tube is inserted into the inner hole for the predetermined length or more, the support is performed. By not executing, the restriction on the extension of the compression coil spring by the guide member and the regulating member may be released. According to the pipe joint of this embodiment, before the elastic portion is incorporated into the pipe joint, the compression coil spring is sandwiched between the restriction member and the guide member, and the guide member is supported by the moving piece, whereby the compression coil spring and the restriction are supported. The member for use, the guide member, and the movable piece can be integrated. For this reason, these members can be easily incorporated into the pipe joint.

（１０）上記形態の管継手において、前記インジケータ部と前記シール部とは、互いに接合または係合され、前記シール部と前記ガイド部材とは、互いに接合または係合されていてもよい。この形態の管継手によれば、インジケータとシール部とは互いに接合または係合され、シール部とガイド部材とは互いに接合または係合されているので、シール部が反対方向に移動しない限り、インジケータの反対方向への移動を抑制できる。このため、管継手への管の挿入が完了する前におけるインジケータの反対方向への移動を抑制できる。 (10) In the pipe joint of the above aspect, the indicator part and the seal part may be joined or engaged with each other, and the seal part and the guide member may be joined or engaged with each other. According to this form of the pipe joint, the indicator and the seal portion are joined or engaged with each other, and the seal portion and the guide member are joined or engaged with each other. Therefore, as long as the seal portion does not move in the opposite direction, the indicator Can be prevented from moving in the opposite direction. For this reason, the movement of the indicator in the opposite direction before the insertion of the pipe into the pipe joint is completed can be suppressed.

Claims

A pipe joint,
An inner hole is formed along the axis, and a tubular joint body into which a pipe can be inserted into the inner hole;
An elastic portion that is disposed in the inner hole, and when the tube is inserted into the inner hole by a predetermined length or more along the axis, the lock is released and the elastic portion extends in a direction opposite to the insertion direction of the tube;
A seal portion that seals between the pipe inserted into the inner hole and the joint body, and moves in an opposite direction from an initial position by extension of the elastic portion;
An indicator portion at least partially disposed in the inner hole, and indicating movement of the seal portion in the opposite direction on the outside of the joint body;
A pipe fitting.

In the pipe joint according to claim 1,
The joint body has a through-hole formed in the thickness direction,
The indicator part is
A pipe joint having an index part which moves in the opposite direction by the movement of the seal part in the opposite direction and is disposed at a position visible from the outside of the joint body through the through hole.

The pipe joint according to claim 2, further comprising:
A pipe joint comprising a lens disposed in the through hole.

The pipe joint according to claim 2 or 3, further comprising:
A pipe joint comprising a movement restricting portion that restricts movement of the indicator portion in the opposite direction when the seal portion is disposed at the initial position.

In the pipe joint according to claim 4,
The elastic portion has a first spring;
The said movement control part is a pipe joint arrange | positioned on the opposite side to the said 1st spring on both sides of the said seal part, and has a 2nd spring of the urging | biasing force smaller than the extension force of the said 1st spring.

In the pipe joint according to any one of claims 1 to 5,
The seal portion is
A first packing;
A second packing which is higher in fire resistance than the first packing and is located closer to the indicator part than the first packing;
Having a pipe fitting.

In the pipe joint according to claim 6,
A pipe joint in which at least a part of the second packing is covered with a metal member.

The pipe joint according to claim 6, further comprising:
A pipe joint comprising a metal member disposed between the second packing and the indicator part.

In the pipe joint according to any one of claims 2 to 8, further,
In the inner hole, it is located on the inner side in the radial direction than the elastic portion, and includes a movable piece movable in the insertion direction,
The elastic part is
A compression coil spring that compresses and stretches in a direction along the axis;
A regulating member in contact with a first end which is a tip in the insertion direction of the compression coil spring;
A guide member that is in contact with the second end that is the tip in the opposite direction of the compression coil spring and that can contact the regulating member;
Have
The guide member is in contact with the second end and in contact with the regulating member in the insertion direction of the regulating member when the tube is not inserted into the inner hole for the predetermined length or more. Suppress movement,
Wherein the guide member and the regulating member, when the tube is not inserted the predetermined length or longer into the hole, the compression coil spring, by pinching in a direction along said axis, said Limit the extension of the compression coil spring,
The moving piece performs support of the guide member so that the guide member is in contact with the regulating member when the tube is not inserted into the inner hole more than the predetermined length, and the tube is Canceling the restriction of the extension of the compression coil spring by the guide member and the regulating member by not performing the support when the predetermined length or more is inserted into the inner hole,
Pipe fittings.

In the pipe joint according to claim 9,
The indicator part and the seal part are joined or engaged with each other,
A pipe joint in which the seal part and the guide member are joined or engaged with each other.

In the pipe joint according to any one of claims 1 to 10,
A pipe joint comprising a slit at an end of the seal part on the pipe side in the opposite direction side.