JP5119024B2 - Branch fitting - Google Patents

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JP5119024B2
JP5119024B2 JP2008086135A JP2008086135A JP5119024B2 JP 5119024 B2 JP5119024 B2 JP 5119024B2 JP 2008086135 A JP2008086135 A JP 2008086135A JP 2008086135 A JP2008086135 A JP 2008086135A JP 5119024 B2 JP5119024 B2 JP 5119024B2
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branch pipe
claw piece
main body
branch
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義貴 中居
稔 橋詰
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Aron Kasei Co Ltd
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Description

本発明は枝管継手具に関する。   The present invention relates to a branch pipe fitting.

従来、大径の主管に対して枝管を取り付ける場合には、サドル付きソケットを使用したものがあった。
一方、特開2006−105250号公報には、下水本管(2)の開口部(3)の周縁に係止される2つの係止爪(4、5)が設けられた係止部材(6)と、下水本管(2)に装着されるサドル部材(7)と、取付管を接続する接続部材(9)が設けられ、一方の係止爪(4)を枢着ピン(11)で係止部材(6)に枢着して回動可能にした接続支管が提供されている。
また特許第3468427号公報には、本管(1)に分岐孔(4)を設け、その分岐孔(4)に対して掴持部材(21)のL字状の掴持爪(26)を予め折曲、縮径して挿入し、分岐孔(4)の外周面にサドル部(25)を当てがい、拡径用筒部(31)を掴持部材(21)に押し込み、これによって掴持爪(26)を拡径し、係止突条(27)が係止溝(28)に嵌合されて、支管(3)が本管(1)に固定されるようにした合成樹脂製支管が提供されている。
また特開平5−99389号公報には、継手(1)の一端部に差口(2a)を設け、その先端に行くに従って継手内方側に位置するように全体的に湾曲された複数の弾性係止片(2c、2c)を形成し、その係止片(2c、2c)の先端部の外面にかえり(2d、2d)を突設した分岐部接合用継手、取付管及び分岐部接続構造が提供されている。
また特開平4−102792号公報には、受口(1)と差口(2)とを有する支管継手が形成され、差口(2)先端部に本管(A)の接続孔(3)の内壁面に係止するための突起縁(5)と、差口(2)先端部の縮径を容易にするための複数の軸方向切欠き(4)を有し、本管(A)への挿入は差口(2)先端部の縮径を必要とするため縮径ジグ(10)を用いて行い、且つその縮径姿勢を一時的に保持するための縮径保持用リング(6)及びその連結係止部材(12)を解除可能に設けた支管継手が提供されている。
特開2006−105250号公報 特許第3468427号公報 特開平5−99389号公報 特開平4−102792号公報
Conventionally, when a branch pipe is attached to a large-diameter main pipe, there is one using a socket with a saddle.
On the other hand, JP 2006-105250 A discloses a locking member (6) provided with two locking claws (4, 5) locked to the periphery of the opening (3) of the sewage main pipe (2). ), A saddle member (7) to be attached to the sewage main pipe (2), and a connecting member (9) for connecting the attachment pipe, and one locking claw (4) is connected to the pivot pin (11). A connection branch pipe pivotally attached to the locking member (6) to be rotatable is provided.
In Japanese Patent No. 3468427, a branch hole (4) is provided in the main pipe (1), and an L-shaped gripping claw (26) of a gripping member (21) is provided to the branch hole (4). Insert it after bending and reducing the diameter, apply the saddle part (25) to the outer peripheral surface of the branch hole (4), and push the cylindrical part for diameter expansion (31) into the gripping member (21). Synthetic resin made by enlarging the holding claws (26) and engaging the locking protrusions (27) in the locking grooves (28) so that the branch pipe (3) is fixed to the main pipe (1). A branch is provided.
Japanese Patent Application Laid-Open No. 5-99389 discloses a plurality of elastic members which are provided with an opening (2a) at one end of a joint (1) and are curved so as to be located on the inner side of the joint as going to the tip. Branch joint joint, mounting pipe and branch connection structure in which a locking piece (2c, 2c) is formed and a barb (2d, 2d) is projected from the outer surface of the tip of the locking piece (2c, 2c) Is provided.
JP-A-4-102792 discloses a branch joint having a receiving port (1) and a slot (2), and a connecting hole (3) of the main pipe (A) at the tip of the slot (2). And a plurality of axial notches (4) for facilitating the diameter reduction of the tip of the difference port (2), and the main pipe (A). Insertion into the gap (2) requires a reduced diameter at the tip of the opening (2), and is performed using a reduced diameter jig (10), and a reduced diameter retaining ring (6) for temporarily maintaining the reduced diameter posture. ) And its coupling locking member (12) are provided so as to be releasable.
JP 2006-105250 A Japanese Patent No. 3468427 JP-A-5-99389 JP-A-4-102792

上記特許文献1に示す接続支管は、下水本管(2)の開口部(3)の周縁に係止する係止部材(6)の2つの係止爪(4、5)の一方の係止爪を内側に回動させて前記開口部(3)に挿入し、前記2つの係止爪(4、5)を開口部に直角に嵌入させて、前記係止部材(6)の上部にはサドル部材(7)を挿着して定着するようにし、該サドル部材(7)の上部には取付管を接続する接続部材(9)を螺着し、3つの部材を用いて接続支管を取り付けるようにしているので、部材が複数となり、取り付けの面倒さや製作コスト等、またサドル部材(7)と接続部材(9)との部材間の接続強度にも問題があった。
上記特許文献2に示す合成樹脂製支管は、本管(1)の分岐孔(4)に、掴持部材(21)のL字状の掴持爪(26)とサドル部(25)とで掴持して取り付け、拡径用筒部(31)を掴持部材(21)に押し込んで掴持爪(26)を拡径し、係止突条(27)が係止溝(28)に嵌合することで取り付けられるので、前記拡径用筒部(31)がグラつくことで掴持爪(26)とサドル部(25)とが抜脱しやすい問題等があった。
上記特許文献3に示す分岐部接合用継手、取付管及び分岐部接続構造は、継手内に取付管(4)の差口(4a)を挿入することで本管(3)の接続孔(3a)の孔縁部内面側にかえり(2d)を係止させ、継手の差口(2a)とかえり(2d)との間の弾性係止片(2c)に本管(3)の接続孔(3a)の孔縁を嵌着させて接続されるものであるが、かえり(3d)と接続孔(3d)との係止だけで接続されるので強度が弱く、また取付管(4)については管先を継手の差口(2a)と同じ口径に形成した専用管を必要とする問題があった。
上記特許文献4に示す支管継手は、先端部に本管(A)の接続孔(3)の内壁面に係止するための突起縁(5)と、差口(2)先端部の縮径を容易にするための複数の軸方向切欠き(4)とを形成したことで、本管(A)の接続孔(3)に突起縁(5)を弾性係止できるものであるが、差口(2)先端部を縮径する縮径ジグ(10)や、縮径姿勢を一時的に保持するための縮径保持用リング(6)及びその連結係止部材(12)等、挿入の際に必ず部材を必要とする面倒さと、突起縁(5)だけで接続されるので強度が弱い問題があった。
The connecting branch shown in Patent Document 1 is one of the two locking claws (4, 5) of the locking member (6) locked to the periphery of the opening (3) of the sewage main pipe (2). A claw is turned inward and inserted into the opening (3), and the two locking claws (4, 5) are inserted into the opening at a right angle, and the upper part of the locking member (6) The saddle member (7) is inserted and fixed, and the connecting member (9) for connecting the attachment pipe is screwed to the upper portion of the saddle member (7), and the connection branch pipe is attached using the three members. As a result, there are a plurality of members, and there are problems in the troublesomeness of mounting, manufacturing costs, and the connection strength between the saddle member (7) and the connecting member (9).
The synthetic resin branch pipe shown in the above-mentioned patent document 2 has an L-shaped gripping claw (26) and a saddle portion (25) of the gripping member (21) in the branch hole (4) of the main pipe (1). Gripping and attaching, the diameter-expanding cylinder (31) is pushed into the gripping member (21) to increase the diameter of the gripping claw (26), and the locking ridge (27) extends into the locking groove (28). Since they are attached by fitting, there is a problem that the gripping claw (26) and the saddle portion (25) are easily pulled out by the above-mentioned diameter-expanding cylindrical portion (31) being glazed.
The joint for connecting a junction part, the attachment pipe, and the junction connection structure shown in the above-mentioned Patent Document 3 is provided with a connection hole (3a) of the main pipe (3) by inserting the outlet (4a) of the attachment pipe (4) into the joint. ) On the inner surface side of the edge of the hole edge, and the connecting hole (2) of the main pipe (3) is inserted into the elastic locking piece (2c) between the joint opening (2a) and the collar (2d). 3a) is connected by fitting the edge of the hole, but the strength is weak because it is connected only by locking the burr (3d) and the connection hole (3d), and the mounting pipe (4) There has been a problem in that a dedicated pipe having a pipe tip formed to have the same diameter as the joint outlet (2a) is required.
The branch joint shown in Patent Document 4 has a protrusion edge (5) for locking to the inner wall surface of the connection hole (3) of the main pipe (A) at the front end and a reduced diameter of the front end of the differential (2). By forming a plurality of axial notches (4) for facilitating the process, the projection edge (5) can be elastically locked to the connection hole (3) of the main pipe (A). Opening (2) Diameter reduction jig (10) for reducing the diameter of the tip, diameter reduction holding ring (6) for temporarily holding the diameter reduction posture, and its connection locking member (12), etc. In this case, there is a problem that the strength is weak because the connection is necessary only with the projecting edge (5) and the troublesomeness that always requires a member.

そこで本発明は上記従来技術の問題を解決し、複数の部材を必要とすることなく、一体物とし、それによって部品点数を少なくし、また主管の分岐孔に対する取付作業が容易で、且つ十分な強度をもって確実に取り付けることができる枝管継手具の提供を課題とする。   Therefore, the present invention solves the above-mentioned problems of the prior art, and does not require a plurality of members, so that it is an integrated object, thereby reducing the number of parts, and the mounting work for the branch hole of the main pipe is easy and sufficient. It is an object to provide a branch pipe joint that can be securely attached with strength.

上記課題を達成するための発明の枝管継手具は、主管の外側壁に設けられた分岐孔に挿着され且つ枝管を受け入れる円筒状本体を備え、該円筒状本体には前記主管の分岐孔の周縁の外側壁に着座する鍔部と、主管の分岐孔の周縁の外側壁に内側から当接する複数の爪片とを設け、鍔部と爪片とにより前記外側壁を挟み込むことで前記円筒状本体を主管に固定するようにした枝管継手具であって、
前記鍔部は前記円筒状本体の外側壁から張り出すように一体形成し、
前記爪片は複数の爪片の少なくとも1つを前記円筒状本体に回動可能に軸支すると共に、回動された際に爪片の先端部が前記円筒状本体の下端から外側方に張り出して前記分岐孔周縁に内側から当接するように構成し、
且つ前記円筒状本体に回動可能に軸支される爪片は、円筒状本体の内壁面に設けた凹部に軸支し、枝管が前記円筒状本体に挿入された際に、枝管に押されることで前記凹部に嵌入されて前記円筒状本体の内壁面と面一になるように構成していることを第1の特徴としている。
また本発明の枝管継手具は、上記第1の特徴に加えて、爪片は、その厚みを円筒状本体の凹部の厚みと同じにしてあることを第2の特徴としている。
また本発明の枝管継手具は、上記第1又は第2の特徴に加えて、爪片は、その先端部において、主管の内周に沿う円弧形状の爪部を形成してあることを第3の特徴としている。
また本発明の枝管継手具は、上記第1〜第3の何れかの特徴に加えて、爪片には、円筒状本体の内壁面の凹部に爪片を仮止め状態に保持する仮止め手段を設けてあることを第4の特徴としている。
また本発明の枝管継手具は、上記第4の特徴に加えて、仮止め手段は、爪片を円筒状本体の内壁面の凹部へ弾性的に嵌入させるために、爪片に設けられた膨出部からなることを第5の特徴としている。
また本発明の枝管継手具は、上記第1〜第5の何れかの特徴に加えて、円筒状本体には、枝管の受入れ深さを規制する規制段部を形成してあることを第6の特徴としている。
また本発明の枝管継手具は、上記第6の特徴に加えて、爪片には、その背面に規制段部の形状と一致する受圧段部を形成し、枝管が円筒状本体に挿入されてきた際に枝管の挿入圧を受圧するようにしてあることを第7の特徴としている。
In order to achieve the above object, a branch pipe fitting according to the present invention includes a cylindrical body that is inserted into a branch hole provided in an outer wall of a main pipe and receives the branch pipe, and the cylindrical main body includes a branch of the main pipe. Provided with a collar part seated on the outer wall of the peripheral edge of the hole and a plurality of claw pieces abutting from the inner side on the outer peripheral wall of the branch hole of the main pipe, and sandwiching the outer wall between the collar part and the claw piece A branch pipe fitting adapted to fix the cylindrical body to the main pipe,
The flange portion is integrally formed so as to protrude from the outer wall of the cylindrical main body,
The claw piece pivotally supports at least one of a plurality of claw pieces on the cylindrical main body so that the claw piece can rotate, and a tip end of the claw piece protrudes outward from a lower end of the cylindrical main body when the claw piece is rotated. Configured to contact the periphery of the branch hole from the inside ,
The claw piece pivotally supported by the cylindrical body is pivotally supported by a recess provided on the inner wall surface of the cylindrical body, and the branch pipe is inserted into the branch body when the branch pipe is inserted into the cylindrical body. The first feature is that it is configured to be pushed into the recess and to be flush with the inner wall surface of the cylindrical main body.
The branch connector of the present invention, in addition to the first feature, claw piece is in that you have the same as the thickness of the recess of the cylindrical body and the thickness and second features.
In addition to the first or second feature, the branch pipe fitting of the present invention is characterized in that the claw piece is formed with an arc-shaped claw portion along the inner periphery of the main pipe at the tip . 3 features.
Moreover, in addition to any of the first to third features described above, the branch pipe fitting of the present invention includes a claw piece that temporarily holds the claw piece in a recessed state on the inner wall surface of the cylindrical body. The fourth feature is that means are provided.
In addition to the fourth feature, the branch pipe fitting of the present invention is provided with a temporary fixing means provided on the claw piece for elastically fitting the claw piece into the recess of the inner wall surface of the cylindrical body. The fifth feature is that it consists of a bulging portion.
Further, in the branch pipe fitting of the present invention, in addition to any of the first to fifth features, the cylindrical main body is provided with a regulation step portion for regulating the receiving depth of the branch pipe. This is the sixth feature.
In addition to the sixth feature described above, the branch pipe fitting of the present invention has a pressure receiving step portion that matches the shape of the restriction step portion on the back surface of the claw piece, and the branch pipe is inserted into the cylindrical body. The seventh feature is that the insertion pressure of the branch pipe is received when it has been done.

請求項1に記載の枝管継手具によれば、主管の外側壁に設けられた分岐孔に挿着され且つ枝管を受け入れる円筒状本体を備え、該円筒状本体には前記主管の分岐孔の周縁の外側壁に着座する鍔部と、主管の分岐孔の周縁の外側壁に内側から当接する複数の爪片とを設け、鍔部と爪片とにより前記外側壁を挟み込むことで前記円筒状本体を主管に固定するようにした枝管継手具であって、前記鍔部は前記円筒状本体の外側壁から張り出すように一体形成し、前記爪片は複数の爪片の少なくとも1つを前記円筒状本体に回動可能に軸支すると共に、回動された際に爪片の先端部が前記円筒状本体の下端から外側方に張り出して前記分岐孔周縁に内側から当接するように構成してあるので、
枝管継手具が、円筒状本体と該円筒状本体の外側壁に張り出されて一体形成された鍔部と、同じく円筒状本体に設けられた複数の爪片とからなるので、1つの部品で済ますことができる。よって複数の部品をそれぞれ用意することなく、枝管の接続作業を行うことができ、部品点数の軽減効果による製作コストの低減と配管取付作業の効率を高めることができる。
また円筒状本体に設けられる複数の爪片のうち、少なくとも1つについては、これを円筒状本体に回動可能に軸支するようにしているので、この回動可能な爪片を分岐孔の孔心方向に回動させておくことで、円筒状本体を容易に主管の分岐孔に挿入させることができる。よって円筒状本体の主管への取付作業を容易に行うことができる。しかも残りの爪片は円筒状本体に予め固定状態に形成しておいても、円筒状本体の分岐孔への挿入は可能であるので、多数の爪片をあれこれ操作することもなく、取付作業が容易に行える。
そして円筒状本体を主管の分岐孔に挿入した後においては、円筒状本体に軸支させた爪片を回動させることで、その先端部を円筒状本体の下端から外側方に張り出させて分岐孔周縁に内側から当接させることができる。よって取付作業が容易に行える。
また円筒状本体の主管の分岐孔への固定は、鍔部と複数の爪片とによって主管の分岐孔周縁を挟み込むことで行うので、固定を十分強固に且つ確実に、安全に行うことができる。
The branch pipe fitting according to claim 1, further comprising a cylindrical main body that is inserted into a branch hole provided in an outer wall of the main pipe and receives the branch pipe, and the cylindrical main body includes the branch hole of the main pipe. And a plurality of claw pieces abutting from the inside on the outer wall of the peripheral edge of the branch hole of the main pipe, and sandwiching the outer wall between the flange and the claw pieces, thereby the cylinder. A branch pipe fitting for fixing a main body to a main pipe, wherein the flange portion is integrally formed so as to protrude from an outer wall of the cylindrical main body, and the claw piece is at least one of a plurality of claw pieces. So that the tip of the claw piece protrudes outward from the lower end of the cylindrical body and abuts against the periphery of the branch hole from the inside. Because it is configured
Since the branch pipe fitting is composed of a cylindrical main body, a flange portion that is integrally formed by projecting from the outer wall of the cylindrical main body, and a plurality of claw pieces that are also provided on the cylindrical main body, one part You can do it. Therefore, the branch pipe connection work can be performed without preparing each of the plurality of parts, and the manufacturing cost can be reduced and the efficiency of the pipe mounting work can be increased due to the effect of reducing the number of parts.
In addition, at least one of the plurality of claw pieces provided on the cylindrical main body is pivotally supported on the cylindrical main body so that the rotatable claw piece can be connected to the branch hole. By rotating in the direction of the core, the cylindrical body can be easily inserted into the branch hole of the main pipe. Therefore, it is possible to easily attach the cylindrical main body to the main pipe. Moreover, even if the remaining claw pieces are fixed to the cylindrical body in advance, they can be inserted into the branch holes of the cylindrical body, so there is no need to operate many claw pieces. Can be done easily.
After inserting the cylindrical main body into the branch hole of the main pipe, the claw piece pivotally supported by the cylindrical main body is rotated to project the tip end outward from the lower end of the cylindrical main body. It can be brought into contact with the periphery of the branch hole from the inside. Therefore, the mounting work can be easily performed.
In addition, the fixing of the cylindrical main body to the branch hole of the main pipe is performed by sandwiching the peripheral edge of the branch hole of the main pipe with the collar portion and the plurality of claw pieces, so that the fixing can be performed sufficiently firmly and surely and safely. .

また請求項1に記載の枝管継手具によれば、前記円筒状本体に回動可能に軸支される爪片は、円筒状本体の内壁面に設けた凹部に軸支し、枝管が前記円筒状本体に挿入された際に、枝管に押されることで前記凹部に嵌入されて前記円筒状本体の内壁面と面一になるように構成しているので、
回動可能とした爪片は、枝管の挿入によって、円筒状本体の内壁面に面一になるまで凹部に嵌入されるので、爪片が枝管の挿入の邪魔になることはなく、枝管のスムーズな挿入を確保することができる。
また爪片は前記枝管の挿入によって凹部に面一になるまで嵌入されることで、爪片の回動が確保され、爪片の先端部の円筒状本体の下端から外側方への十分な張り出しを確保することができる。よって爪片と鍔部とによる主管外側壁の挟み込みを、より確実に行うことが可能となる。
勿論、仮止め手段がなくても、枝管の挿入だけで爪片を張り出し位置まで回動させることができる。
According to the branch pipe fitting of claim 1 , the claw piece pivotally supported by the cylindrical body is pivotally supported by the recess provided on the inner wall surface of the cylindrical body, and the branch pipe is When inserted into the cylindrical main body, because it is configured to be flush with the inner wall surface of the cylindrical main body by being inserted into the recess by being pushed by the branch pipe,
Since the nail piece that can be rotated is inserted into the recess until the inner wall surface of the cylindrical body is flush with the insertion of the branch pipe, the nail piece does not interfere with the insertion of the branch pipe. Smooth insertion of the tube can be ensured.
Further, the claw piece is inserted into the recess until the claw piece is flush with the insertion of the branch pipe, thereby ensuring the rotation of the claw piece, and from the lower end of the cylindrical body at the tip of the claw piece to the outside sufficiently. The overhang can be secured. Therefore, the main pipe outer side wall can be more reliably sandwiched between the claw piece and the collar portion.
Of course, the claw piece can be rotated to the overhanging position only by inserting the branch pipe without the temporary fixing means.

請求項2に記載の枝管継手具によれば、上記請求項1に記載の構成による作用効果に加えて、爪片は、その厚みを円筒状本体の凹部の厚みと同じにしてあるので、
爪片が枝管に押されて円筒状本体の凹部に嵌入された際に、凹部内でガタつくことがない。よって爪片の先端部を分岐孔の周縁の外側壁の内側に安定して、且つ確実に当接させることが可能となる。
According to the branch pipe fitting according to claim 2 , in addition to the function and effect of the configuration according to claim 1 , the claw piece has the same thickness as the concave portion of the cylindrical body.
When the nail piece is pushed by the branch pipe and is inserted into the concave portion of the cylindrical main body, there is no backlash in the concave portion. Therefore, the tip of the claw piece can be stably and reliably brought into contact with the inner side of the outer wall of the peripheral edge of the branch hole.

請求項3に記載の枝管継手具によれば、請求項1又は2に記載の構成による作用効果に加えて、爪片は、その先端部において、主管の内周に沿う円弧形状の爪部を形成してあるので、
爪片を、その先端部の円弧状の爪部によって、主管の分岐孔の周縁の外側壁の内側にぴったりと当接させることが可能となる。これにより鍔部と爪部とによる挟み込みを確実に、安定して行うことができる。
According to the branch pipe joint device, according to claim 3, in addition to the effects by the configuration recited in claim 1 or 2, claw piece, at its distal end, the claw portion of the arc-shape along the inner periphery of the main pipe Because it is formed
The claw piece can be brought into close contact with the inner side of the outer wall of the peripheral edge of the branch hole of the main pipe by the arc-shaped claw portion at the tip end portion thereof. As a result, it is possible to reliably and stably perform the sandwiching between the collar portion and the claw portion.

請求項4に記載の枝管継手具によれば、請求項1〜3の何れかに記載の構成による作用効果に加えて、爪片には、円筒状本体の内壁面の凹部に爪片を仮止め状態に保持する仮止め手段を設けてあるので、
円筒状本体を主管の分岐孔に挿入した後、枝管を円筒状本体に挿入するまでの間において、爪片をぶらつかせることなく、回動された位置付近に仮保持させることができる。よって枝管の挿入時に、該枝管をスムーズに挿入させることができる。また枝管が挿入されたときに、爪片をスムーズに最終回動位置まで回動させることができる。よって作業をスムーズに、確実に行うことができる。
According to the branch pipe fitting according to claim 4 , in addition to the operational effects of the configuration according to any one of claims 1 to 3 , the claw piece has a claw piece in the recess of the inner wall surface of the cylindrical body. Since there is a temporary fixing means to hold in the temporary fixed state,
After the cylindrical main body is inserted into the branch hole of the main pipe, it is possible to temporarily hold the claw pieces in the vicinity of the rotated position until the branch pipe is inserted into the cylindrical main body. Therefore, the branch pipe can be smoothly inserted when the branch pipe is inserted. Further, when the branch pipe is inserted, the claw piece can be smoothly rotated to the final rotation position. Therefore, the work can be performed smoothly and reliably.

請求項5に記載の枝管継手具によれば、請求項4に記載の構成のよる作用効果に加えて、仮止め手段は、爪片を円筒状本体の内壁面の凹部へ弾性的に嵌入させるために、爪片に設けられた膨出部からなるので、
爪片にちょっとした膨出部を設けるだけで、容易に爪片を凹部に弾性的に嵌入して仮止めさせることができる。
According to the branch pipe joint device, according to claim 5, in addition to the effects due the arrangement according to claim 4, temporary fixing means is resiliently fitted into the claw piece into the recess of the inner wall of the cylindrical body Because it consists of the bulging part provided in the nail piece,
By simply providing a small bulge on the nail piece, the nail piece can be easily elastically inserted into the recess and temporarily fixed.

請求項6に記載の枝管継手具によれば、請求項1〜の何れかに記載の構成による作用効果に加えて、円筒状本体には、枝管の受入れ深さを規制する規制段部を形成してあるので、
前記枝管の前記主管への貫入を防止することができると共に、枝管を主管に接続させる際の接続深さを正確に定めることができる。
According to the branch pipe fitting according to claim 6 , in addition to the operational effects of the configuration according to any one of claims 1 to 5 , the cylindrical body has a regulation stage that regulates the receiving depth of the branch pipe. Part is formed,
The branch pipe can be prevented from penetrating into the main pipe, and the connection depth when the branch pipe is connected to the main pipe can be accurately determined.

請求項7に記載の枝管継手具によれば、請求項6に記載の構成による作用効果に加えて、爪片には、その背面に規制段部の形状と一致する受圧段部を形成し、枝管が円筒状本体に挿入されてきた際に枝管の挿入圧を受圧するようにしてあるので、
挿入されてきた枝管の圧力によって爪片を確実に回動させて、その先端部を主管の分岐孔周縁の外側壁の内側に当接させる方向に位置付けることができる。
According to the branch pipe fitting according to the seventh aspect , in addition to the function and effect of the structure according to the sixth aspect , the claw piece is formed with a pressure receiving step portion that matches the shape of the restriction step portion on the back surface. Since the branch pipe is inserted into the cylindrical body, the insertion pressure of the branch pipe is received.
The claw piece can be reliably rotated by the pressure of the branch pipe that has been inserted, and its tip can be positioned in the direction in which it abuts against the inside of the outer wall of the periphery of the branch hole of the main pipe.

以下の図面を参照して、本発明の実施形態を詳細に説明する。
図1は本発明の実施形態に係る枝管継手具を示す斜視図、図2は本発明の枝管継手具の下端側である底面図、図3は図2のA−A断面図、図4は図2のB−B断面図、図5は軸支爪片の仮止め状態を示す拡大断面図、図6は軸支爪片の正面図、図7は軸支爪片を示す斜視図、図8は円筒状本体の下端の凹部を示す斜視図である。
Embodiments of the present invention will be described in detail with reference to the following drawings.
FIG. 1 is a perspective view showing a branch pipe fitting according to an embodiment of the present invention, FIG. 2 is a bottom view of the lower pipe side of the branch pipe fitting of the present invention, and FIG. 3 is a cross-sectional view taken along line AA in FIG. 4 is a cross-sectional view taken along the line BB in FIG. 2, FIG. 5 is an enlarged cross-sectional view showing a temporarily fixed state of the shaft support claw piece, FIG. 6 is a front view of the shaft support claw piece, and FIG. FIG. 8 is a perspective view showing a recess at the lower end of the cylindrical main body.

本発明の枝管継手具は、図3に示す主管100の分岐孔110に対して取り付けられる円筒状本体200からなる。円筒状本体200には図1に示す枝管300が挿入される。これにより主管100に枝管300が接続されることになる。
即ち、円筒状本体200は、前記分岐孔110と枝管300との間を介して接続するための枝管継手具として形成される。
The branch pipe fitting of the present invention comprises a cylindrical main body 200 attached to the branch hole 110 of the main pipe 100 shown in FIG. A branch pipe 300 shown in FIG. 1 is inserted into the cylindrical main body 200. As a result, the branch pipe 300 is connected to the main pipe 100.
That is, the cylindrical main body 200 is formed as a branch pipe joint for connecting between the branch hole 110 and the branch pipe 300.

円筒状本体200は円筒部210を備え、複数の爪片220、230と、鍔部240を設けている。
円筒状本体200は、その円筒部210の下端に下端開口縁211を設け、該下端開口縁211には外方に張り出す前記爪片220、230を設けている。
また円筒状本体200の円筒部210の下端付近の外側壁に鍔部240を設けている。
また円筒状本体200の円筒部210には、その上端側に枝管300の挿入を受け入れる枝管挿入口212を形成している。
また円筒状本体200の円筒部210の下部の内壁面に凹部213を形成している。該凹部213は円筒部210の下端に向けて開放された凹部とされている。凹部213は厚肉外壁部213a、凹部溝213b、及び一対の軸受孔213cからなる。凹部213には、前記爪片220が軸支される。
また円筒状本体200の円筒部210には、その途中の内周壁に前記枝管300の受入れ深さを規制する規制段部214を形成している。該規制段部214は、枝管300の受入れ深さを規制するための段部である。枝管300を必要以上に挿入させることなく、また枝管300の差し込み不足も防止して、所定の位置に接続させることができる。
The cylindrical main body 200 includes a cylindrical portion 210 and a plurality of claw pieces 220 and 230 and a collar portion 240.
The cylindrical main body 200 is provided with a lower end opening edge 211 at the lower end of the cylindrical portion 210, and the lower end opening edge 211 is provided with the claw pieces 220 and 230 projecting outward.
Further, a collar portion 240 is provided on the outer wall near the lower end of the cylindrical portion 210 of the cylindrical main body 200.
Further, the cylindrical portion 210 of the cylindrical main body 200 is formed with a branch pipe insertion port 212 for receiving the insertion of the branch pipe 300 on the upper end side thereof.
A concave portion 213 is formed on the inner wall surface of the lower portion of the cylindrical portion 210 of the cylindrical main body 200. The recess 213 is a recess opened toward the lower end of the cylindrical portion 210. The recess 213 includes a thick outer wall 213a, a recess groove 213b, and a pair of bearing holes 213c. The claw piece 220 is pivotally supported in the recess 213.
Further, the cylindrical portion 210 of the cylindrical main body 200 is formed with a regulating step portion 214 that regulates the receiving depth of the branch pipe 300 on the inner peripheral wall in the middle thereof. The restriction step 214 is a step for restricting the receiving depth of the branch pipe 300. The branch pipe 300 can be connected to a predetermined position without inserting the branch pipe 300 more than necessary and also preventing the branch pipe 300 from being insufficiently inserted.

前記複数の爪片220、230は、本実施形態においては、円筒状本体200の円周方向の2箇所に180度の間隔をもって設けられており、一方の爪片220を回動可能に軸支された軸支爪片220とし、他方の爪片230を固定爪片230としている。
本実施形態では爪片の数は2つとしているが、これに限定されるものではなく、2つ以上の複数を円周の回りに均等に配することができる。なお全ての爪片を固定爪片230にした場合には、円筒状本体200を主管100の分岐孔110に挿入することができなくなる。このため、円筒状本体200を主管100の分岐孔110に挿入することができる程度に、少なくとも1つを軸支爪片220とする。軸支爪片220を1以上いくつ設けるかは限定されない。
また2つの爪片220、230を何れも回動可能なものとして、相互に180度の間隙をもって設けてもよい。この場合には、一対の回動可能な爪片220、230を何れも円筒状本体200内に収納した状態(外側に張り出さない状態)に保持したままで、円筒状本体200を分岐孔110に差し入れることができる。よって爪片220、230が邪魔にならないので、円筒状本体200を分岐孔110の軸心に対して真っ直ぐに、傾くことなく差し入れることができる。このように円筒状本体200を分岐孔110に対して傾くことなく差し入れることができると、該円筒状本体200に設けた鍔部240の下面にブチルゴム等の粘着性接着剤或いはシール材を施している場合においても、作業途中において前記接着剤が不本意なところに接着して作業を難しくすることなく、鍔部240を容易に且つ正確に最終着座位置に着座させることができる。
In the present embodiment, the plurality of claw pieces 220 and 230 are provided at two intervals in the circumferential direction of the cylindrical main body 200 with an interval of 180 degrees. The shaft support claw piece 220 is used, and the other claw piece 230 is a fixed claw piece 230.
In the present embodiment, the number of claw pieces is two, but the number of claw pieces is not limited to this, and two or more claw pieces can be evenly arranged around the circumference. When all the claw pieces are fixed claw pieces 230, the cylindrical main body 200 cannot be inserted into the branch hole 110 of the main pipe 100. For this reason, at least one is made into the support nail | claw piece 220 to such an extent that the cylindrical main body 200 can be inserted in the branch hole 110 of the main pipe 100. FIG. The number of the shaft support claw pieces 220 provided is not limited.
In addition, the two claw pieces 220 and 230 may both be rotatable and may be provided with a gap of 180 degrees. In this case, the cylindrical main body 200 is held in the state where the pair of rotatable claw pieces 220 and 230 are both housed in the cylindrical main body 200 (the state where they do not protrude outward), and the cylindrical main body 200 is held in the branch hole 110. Can be inserted. Therefore, since the claw pieces 220 and 230 do not get in the way, the cylindrical main body 200 can be inserted straight without tilting with respect to the axis of the branch hole 110. If the cylindrical main body 200 can be inserted without being inclined with respect to the branch hole 110 in this way, an adhesive adhesive such as butyl rubber or a sealing material is applied to the lower surface of the flange 240 provided in the cylindrical main body 200. Even in this case, the collar 240 can be easily and accurately seated at the final seating position without causing the adhesive to adhere to an unwilling place during the work and making the work difficult.

前記固定爪片230は円筒状本体200の円筒部210の下端開口縁211に外向きに張り出した爪部231として一体成形している。爪部231の形状は前記主管100の内周に沿う円弧形状としている。これにより主管100の分岐孔110の周縁の外側壁の内側に沿ってぴったりと当接させることができる。   The fixed claw piece 230 is integrally formed as a claw portion 231 projecting outward from the lower end opening edge 211 of the cylindrical portion 210 of the cylindrical main body 200. The shape of the claw portion 231 is an arc shape along the inner periphery of the main pipe 100. Thereby, it can be made to contact | abut closely along the inner side of the outer wall of the periphery of the branch hole 110 of the main pipe 100. FIG.

前記軸支爪片220は、前記円筒状本体200の内壁面に形成された凹部213に軸支され、回動可能とされている。
即ち軸支爪片220は、その上部の両側部に設けた軸ピン224で凹部213の上部の両側壁に設けた軸受孔213cに軸支される。
軸支爪片220の先端部(下端部)に、略直角方向に外向きに張り出した爪部221を形成している。この爪部221の形状自体は前記した固定爪片230の形状と同様である。即ち、爪部221の形状は前記主管100の内周に沿う円弧形状としている。これにより主管100の分岐孔110の周縁の外側壁の内側に沿ってぴったりと当接することが可能となる。
軸支爪片220は、枝管300を挿入した際に、該枝管300に押されることで、凹部213内に嵌入されて、円筒状本体200(円筒部210)の内壁面と面一になるように軸支されている。
また軸支爪片220の厚みを凹部213の厚み(深さ)と同じにしている。これによって、軸支爪片220が凹部213に嵌入されたときに、凹部213に過不足なく収容され且つ前記円筒状本体200(円筒部210)の内壁面と面一になる。そしてこの状態で、前記した爪部221が円筒状本体200の下端から外側方に張り出して、分岐孔110周縁の外側壁の内側に丁度当接する構成とされている。軸支爪片220が凹部213に過不足なく収容され且つ面一になることで、軸支爪片220がガタツクことがなくなるので、爪部221が確実に分岐孔110周縁の主管100の外側壁をとらえ、抜けたり外れたりすることが確実に防止される。また軸支爪片220の耐破損強度が十分に向上する。
The pivot support claw piece 220 is pivotally supported by a recess 213 formed on the inner wall surface of the cylindrical main body 200 and is rotatable.
That is, the shaft support claw piece 220 is supported by the bearing holes 213c provided on the both side walls of the upper portion of the recess 213 by the shaft pins 224 provided on the both side portions of the upper portion thereof.
A claw portion 221 projecting outward in a substantially right angle direction is formed at the tip end portion (lower end portion) of the shaft support claw piece 220. The shape of the claw portion 221 is the same as that of the fixed claw piece 230 described above. That is, the shape of the claw portion 221 is an arc shape along the inner periphery of the main pipe 100. As a result, it is possible to make a close contact along the inner side of the outer wall of the peripheral edge of the branch hole 110 of the main pipe 100.
When the branch pipe 300 is inserted, the shaft support claw piece 220 is pushed into the concave part 213 by being pushed by the branch pipe 300 and is flush with the inner wall surface of the cylindrical main body 200 (cylindrical part 210). It is pivotally supported.
Moreover, the thickness of the shaft support claw piece 220 is made the same as the thickness (depth) of the recess 213. As a result, when the shaft support claw piece 220 is fitted into the recess 213, it is accommodated in the recess 213 without excess or deficiency and is flush with the inner wall surface of the cylindrical main body 200 (cylindrical portion 210). In this state, the above-described claw portion 221 protrudes outward from the lower end of the cylindrical main body 200 and just contacts the inner side of the outer wall of the peripheral edge of the branch hole 110. Since the shaft support claw piece 220 is accommodated in the recess 213 without excess and deficiency and is flush with the surface, the shaft support claw piece 220 is prevented from rattling, so that the claw portion 221 can be reliably secured to the outer wall of the main pipe 100 at the periphery of the branch hole 110. Is reliably prevented from coming off or coming off. Further, the breakage resistance strength of the shaft support claw piece 220 is sufficiently improved.

軸支爪片220には仮止め手段として、膨出部222を設けている。膨出部222は、前記爪片220の上部に凹部213に向けて膨出する円弧状の凸状の帯として形成される。この膨出部222に対応して凹部213に凹部溝213bが形成されている。膨出部222が凹部溝213bに少し入った状態で弾性嵌合する。これにより、軸支爪片220が凹部213に仮止めされる。   The shaft support claw piece 220 is provided with a bulging portion 222 as a temporary fixing means. The bulging portion 222 is formed as an arc-shaped convex band that bulges toward the concave portion 213 on the claw piece 220. A recessed groove 213 b is formed in the recessed portion 213 corresponding to the bulging portion 222. The bulging portion 222 is elastically fitted in a state where it slightly enters the recess groove 213b. As a result, the shaft support claw piece 220 is temporarily fixed to the recess 213.

軸支爪片220には、その背面に受圧段部223を形成している。受圧段部223は前記した円筒状本体200の円筒部210の規制段部214の形状と一致するように形成されている。枝管300が前記円筒部210に挿入されてきた際に前記受圧段部223で枝管300の先端を受けることで、挿入圧を受圧して、軸支爪片220を確実に回動させて、軸支爪片220を凹部213に面一に嵌入させ、爪部221を分岐孔110周縁の外側壁の内側に当接させる。   The shaft support claw piece 220 is formed with a pressure receiving step portion 223 on the back surface thereof. The pressure receiving step 223 is formed to match the shape of the regulation step 214 of the cylindrical portion 210 of the cylindrical main body 200 described above. When the branch pipe 300 is inserted into the cylindrical portion 210, the pressure receiving step 223 receives the tip of the branch pipe 300, thereby receiving the insertion pressure and securely rotating the pivot support claw piece 220. Then, the shaft support claw piece 220 is fitted into the recess 213 in a flush manner, and the claw portion 221 is brought into contact with the inside of the outer wall of the periphery of the branch hole 110.

前記凹部213は、該凹部213の裏面となる前記円筒部210の外壁を、厚肉外壁部213aとして、凹部213の形状に対応した形で肉厚にすることで形成している。凹部213の部分だけを厚肉外壁部213aとすることで、材料を節約することができる。   The concave portion 213 is formed by thickening the outer wall of the cylindrical portion 210 serving as the back surface of the concave portion 213 as a thick outer wall portion 213a in a shape corresponding to the shape of the concave portion 213. By making only the portion of the recess 213 a thick outer wall portion 213a, material can be saved.

前記円筒状本体200の円筒部210の下端付近の外側壁に設けられている鍔部240は、円筒部210の側周壁から張り出すように一体形成されている。その鍔部240の形状は、主管100の外側壁の形状に沿うようにサドル形状とされている。これによって鍔部240が分岐孔110の周縁の外側壁にぴったりと接面する状態に着座される。
この鍔部240と前記固定爪片230との間隙に対して、主管100の分岐孔110周縁が丁度入りって込むことになる。また前記軸支爪片220の爪部221が円筒状本体200の下端から外側方に張り出すことで、主管100の分岐孔110周縁が鍔部240と前記軸支爪片220とで挟まれることになる。
The flange 240 provided on the outer wall near the lower end of the cylindrical portion 210 of the cylindrical main body 200 is integrally formed so as to protrude from the side peripheral wall of the cylindrical portion 210. The shape of the collar portion 240 is a saddle shape so as to follow the shape of the outer wall of the main pipe 100. As a result, the collar portion 240 is seated in a state where it closely contacts the outer wall of the peripheral edge of the branch hole 110.
The periphery of the branch hole 110 of the main pipe 100 just enters the gap between the flange 240 and the fixed claw piece 230. Further, the claw portion 221 of the shaft support claw piece 220 projects outward from the lower end of the cylindrical main body 200, so that the periphery of the branch hole 110 of the main pipe 100 is sandwiched between the flange portion 240 and the shaft support claw piece 220. become.

前記鍔部240の下面(主管100の外側壁に着座する面)には密着性、防水性を向上させるためにシール材を施すことができる。また着座させた際に、接着剤によって接着させることができる。   A sealing material can be applied to the lower surface of the flange portion 240 (the surface seated on the outer wall of the main pipe 100) in order to improve adhesion and waterproofness. Moreover, when it is made to sit down, it can be made to adhere | attach with an adhesive agent.

上記のような構成において、枝管300の接合作業を説明する。
まず枝管300を接続する主管100の位置を決めて、ホールソー等により円筒状本体200の下端開口縁211の外径に合う分岐孔110を開ける。
次に、円筒状本体200の軸支爪片220を内側に回動させた状態で、該円筒状本体200を分岐孔110内に差し入れて、鍔部240を分岐孔110の周縁の外側壁に着座させ、挿着を完了する。
更に軸支爪片220を外方に回動させて、仮止め状態にする。
この状態で枝管300の受け入れ態勢が整う。
次に枝管300を円筒状本体200に挿入する。枝管300の先端が前記軸支爪片220に当接して押動し、軸支爪片220を凹部213内に嵌入させる。そして枝管300の先端が軸支爪片220の受圧段部223に達し、更に円筒状本体200の規制段部214に達したところで、枝管300のそれ以上の侵入が停止され、接続が完了する。この時点で、前記軸支爪片220の爪部221が前記分岐孔110周縁に内側から当接する状態となる。これによって、枝管300の配管作業(接続作業)の完了と同時に枝管接続具としての円筒状本体200の装着が完了する。
In the above configuration, the joining operation of the branch pipe 300 will be described.
First, the position of the main pipe 100 to which the branch pipe 300 is connected is determined, and a branch hole 110 that matches the outer diameter of the lower end opening edge 211 of the cylindrical main body 200 is opened by a hole saw or the like.
Next, in a state where the pivoting claw piece 220 of the cylindrical main body 200 is rotated inward, the cylindrical main body 200 is inserted into the branch hole 110, and the collar portion 240 is attached to the outer wall on the periphery of the branch hole 110. Sit down and complete the insertion.
Further, the pivot support claw piece 220 is rotated outward to be in a temporarily fixed state.
In this state, the receiving posture of the branch pipe 300 is adjusted.
Next, the branch pipe 300 is inserted into the cylindrical main body 200. The distal end of the branch pipe 300 abuts against the shaft support claw piece 220 and pushes to push the shaft support claw piece 220 into the recess 213. When the tip of the branch pipe 300 reaches the pressure receiving step portion 223 of the pivot support claw piece 220 and further reaches the regulation step portion 214 of the cylindrical main body 200, the further penetration of the branch pipe 300 is stopped and the connection is completed. To do. At this time, the claw portion 221 of the shaft support claw piece 220 comes into contact with the periphery of the branch hole 110 from the inside. Thereby, the installation of the cylindrical main body 200 as the branch pipe connector is completed simultaneously with the completion of the piping work (connection work) of the branch pipe 300.

なお、円筒状本体200の円筒部210内壁に接着剤を施して、枝管300を受け入れた状態で両者の接着がなされるようにしてもよい。
また円筒状本体200の円筒部210の内孔にはOリングやその他のゴムリングの取付部を設けて、枝管300との接続の水密性を確保するようにすることができる。
Note that an adhesive may be applied to the inner wall of the cylindrical portion 210 of the cylindrical main body 200 so that the two are bonded in a state where the branch pipe 300 is received.
In addition, an O-ring or other rubber ring mounting portion may be provided in the inner hole of the cylindrical portion 210 of the cylindrical main body 200 to ensure watertightness of the connection with the branch pipe 300.

本発明の実施形態に係る枝管継手具の斜視図である。It is a perspective view of the branch pipe coupling tool which concerns on embodiment of this invention. 本発明の枝管継手具の下端側の底面図である。It is a bottom view of the lower end side of the branch pipe fitting of the present invention. 図2のA−A断面図である。It is AA sectional drawing of FIG. 図2のB−B断面図である。It is BB sectional drawing of FIG. 軸支爪片の仮止め状態を示す拡大断面図である。It is an expanded sectional view which shows the temporarily fixed state of a shaft support claw piece. 軸支爪片の正面図である。It is a front view of a shaft support claw piece. 軸支爪片を示す斜視図である。It is a perspective view which shows a shaft support claw piece. 円筒状本体の下端の凹部を示す斜視図であるIt is a perspective view which shows the recessed part of the lower end of a cylindrical main body.

符号の説明Explanation of symbols

100 主管
110 分岐孔
200 円筒状本体
210 円筒部
211 下端開口縁
212 枝管挿入口
213 凹部
213a 厚肉外壁部
213b 凹部溝
213c 軸受孔
214 規制段部
220 軸支爪片
221 爪部
222 膨出部
223 受圧段部
224 軸ピン
230 固定爪片
231 爪部
240 鍔部
300 枝管
DESCRIPTION OF SYMBOLS 100 Main pipe 110 Branch hole 200 Cylindrical main body 210 Cylindrical part 211 Lower end opening edge 212 Branch pipe insertion port 213 Recessed part 213a Thick outer wall part 213b Recessed groove 213c Bearing hole 214 Regulation | regulation step part 220 Shaft support claw piece 221 Claw part 222 Swelling part 223 Pressure receiving step portion 224 Shaft pin 230 Fixed claw piece 231 Claw portion 240 Hook portion 300 Branch pipe

Claims (7)

主管の外側壁に設けられた分岐孔に挿着され且つ枝管を受け入れる円筒状本体を備え、該円筒状本体には前記主管の分岐孔の周縁の外側壁に着座する鍔部と、主管の分岐孔の周縁の外側壁に内側から当接する複数の爪片とを設け、鍔部と爪片とにより前記外側壁を挟み込むことで前記円筒状本体を主管に固定するようにした枝管継手具であって、
前記鍔部は前記円筒状本体の外側壁から張り出すように一体形成し、
前記爪片は複数の爪片の少なくとも1つを前記円筒状本体に回動可能に軸支すると共に、回動された際に爪片の先端部が前記円筒状本体の下端から外側方に張り出して前記分岐孔周縁に内側から当接するように構成し、
且つ前記円筒状本体に回動可能に軸支される爪片は、円筒状本体の内壁面に設けた凹部に軸支し、枝管が前記円筒状本体に挿入された際に、枝管に押されることで前記凹部に嵌入されて前記円筒状本体の内壁面と面一になるように構成していることを特徴とする枝管継手具。
A cylindrical main body is inserted into a branch hole provided in the outer wall of the main pipe and receives the branch pipe. The cylindrical main body has a flange seated on the outer wall of the peripheral edge of the branch hole of the main pipe, A branch pipe fitting provided with a plurality of claw pieces abutting from the inside on the outer peripheral wall of the peripheral edge of the branch hole, and fixing the cylindrical body to the main pipe by sandwiching the outer wall between the collar part and the claw piece Because
The flange portion is integrally formed so as to protrude from the outer wall of the cylindrical main body,
The claw piece pivotally supports at least one of a plurality of claw pieces on the cylindrical main body so that the claw piece can rotate, and a tip end of the claw piece protrudes outward from a lower end of the cylindrical main body when the claw piece is rotated. Configured to contact the periphery of the branch hole from the inside ,
The claw piece pivotally supported by the cylindrical body is pivotally supported by a recess provided on the inner wall surface of the cylindrical body, and the branch pipe is inserted into the branch body when the branch pipe is inserted into the cylindrical body. A branch pipe fitting, wherein the branch pipe fitting is configured to be inserted into the recess when pressed and to be flush with an inner wall surface of the cylindrical main body .
爪片は、その厚みを円筒状本体の凹部の厚みと同じにしてあることを特徴とする請求項1に記載の枝管継手具。 The branch pipe fitting according to claim 1, wherein the claw piece has the same thickness as the thickness of the concave portion of the cylindrical main body . 爪片は、その先端部において、主管の内周に沿う円弧形状の爪部を形成してあることを特徴とする請求項1又は2に記載の枝管継手具。 The branch pipe fitting according to claim 1 or 2 , wherein the claw piece is formed with an arc-shaped claw part along an inner periphery of the main pipe at a tip part thereof . 爪片には、円筒状本体の内壁面の凹部に爪片を仮止め状態に保持する仮止め手段を設けてあることを特徴とする請求項1〜3の何れかに記載の枝管継手具。 The branch pipe fitting according to any one of claims 1 to 3, wherein the claw piece is provided with a temporary fixing means for holding the claw piece in a temporarily fixed state in a concave portion of the inner wall surface of the cylindrical main body. . 仮止め手段は、爪片を円筒状本体の内壁面の凹部へ弾性的に嵌入させるために、爪片に設けられた膨出部からなることを特徴とする請求項4に記載の枝管継手具。 The branch pipe joint according to claim 4 , wherein the temporary fixing means includes a bulging portion provided in the claw piece so as to elastically fit the claw piece into the concave portion of the inner wall surface of the cylindrical main body. Ingredients. 円筒状本体には、枝管の受入れ深さを規制する規制段部を形成してあることを特徴とする請求項1〜5の何れかに記載の枝管継手具。 6. The branch pipe coupling device according to claim 1, wherein a regulation step portion for regulating a receiving depth of the branch pipe is formed in the cylindrical main body . 爪片には、その背面に規制段部の形状と一致する受圧段部を形成し、枝管が円筒状本体に挿入されてきた際に枝管の挿入圧を受圧するようにしてあることを特徴とする請求項6に記載の枝管継手具。 The claw piece is formed with a pressure receiving step portion that matches the shape of the regulation step portion on the back surface, and receives the insertion pressure of the branch pipe when the branch pipe is inserted into the cylindrical body. The branch pipe fitting according to claim 6 , wherein
JP2008086135A 2008-03-28 2008-03-28 Branch fitting Active JP5119024B2 (en)

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2901325B2 (en) * 1990-08-21 1999-06-07 積水化学工業株式会社 Branch pipe fitting
JP2547313Y2 (en) * 1992-11-02 1997-09-10 積水化学工業株式会社 Branch pipe fitting
JP3468427B2 (en) * 1993-09-18 2003-11-17 アロン化成株式会社 Synthetic resin branch pipe
JP3396128B2 (en) * 1996-05-17 2003-04-14 則男 大津賀 Branch pipe connection device
JP4443369B2 (en) * 2004-10-05 2010-03-31 アロン化成株式会社 Connection branch

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