JP2000304176A - Earthquake-resistant pipe joint for deformed pipe, and method and jig for connecting the pipe joint - Google Patents
Earthquake-resistant pipe joint for deformed pipe, and method and jig for connecting the pipe jointInfo
- Publication number
- JP2000304176A JP2000304176A JP11115595A JP11559599A JP2000304176A JP 2000304176 A JP2000304176 A JP 2000304176A JP 11115595 A JP11115595 A JP 11115595A JP 11559599 A JP11559599 A JP 11559599A JP 2000304176 A JP2000304176 A JP 2000304176A
- Authority
- JP
- Japan
- Prior art keywords
- lock ring
- pipe
- pipe joint
- split
- guide groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Joints With Sleeves (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、異形管の耐震管継
手とその接続方法及び接続用治具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic pipe joint for a deformed pipe, a method of connecting the same, and a jig for connection.
【0002】[0002]
【従来の技術】耐震管継手として図8に示したような管
継手が知られているが、この管継手は、通常の管継手と
同様管1の一端に形成された受口2の内面の収納溝3に
芯出用ゴム4とロックリング5を収納する一方、管1の
他端の挿口6の端部に突部7を形成し、受口2に挿口6
を挿入して接合後、管に脱け出し力が作用すると、突部
7がロックリング5に係合して脱け出すのを防止する構
成とされている。2. Description of the Related Art As a seismic pipe joint, a pipe joint as shown in FIG. 8 is known, and this pipe joint is provided at the inner surface of a receiving port 2 formed at one end of a pipe 1 like a normal pipe joint. While the centering rubber 4 and the lock ring 5 are stored in the storage groove 3, a protrusion 7 is formed at the end of the insertion port 6 at the other end of the tube 1, and the insertion port 6 is formed in the receiving port 2.
After insertion and joining, when a release force acts on the pipe, the projection 7 is engaged with the lock ring 5 to prevent the pipe from coming off.
【0003】なお、図中8はシール用ゴム輪、8aはバ
ックアップリング、9は押し輪、10は押し輪締結用ボ
ルトナットを示す。ところで、上記耐震管継手の接続作
業を油圧装置などの大掛かりな接合治具を用いずに簡易
な接合を行なおうとする場合、挿口突部7がロックリン
グ5に当接して挿入の障害となるので、従来では図9に
示すように受口2に挿口6を挿入する前に、挿口6外面
と受口2内面との隙間Sに受口開口端から拡大治具16
を挿入し、図10に示すように拡径ボルト17を回転操
作して割り部を広げ、図9に示すようにロックリング5
を収納溝3内に没入させて抵抗とならないようにしてお
いて、挿口凸部7を矢印で示すように通過させ、その後
拡大治具16を取り外してロックリング5を復元縮小し
挿口突部7と係合できるようにしていた。In the drawings, reference numeral 8 denotes a rubber ring for sealing, 8a denotes a backup ring, 9 denotes a push ring, and 10 denotes a bolt and nut for fastening the push ring. By the way, when trying to perform simple joining without using a large-sized joining jig such as a hydraulic device for the connection work of the seismic pipe joint, the insertion projection 7 comes into contact with the lock ring 5 to prevent the insertion failure. Conventionally, as shown in FIG. 9, before the insertion port 6 is inserted into the receiving port 2, the expansion jig 16 is inserted into the gap S between the outer surface of the receiving port 6 and the inner surface of the receiving port 2 from the receiving port opening end.
Is inserted and the split part is widened by rotating the large-diameter bolt 17 as shown in FIG. 10, and the lock ring 5 as shown in FIG.
Is inserted into the storage groove 3 so as not to cause resistance, and the insertion convex portion 7 is passed through as shown by an arrow. Thereafter, the expansion jig 16 is removed, the lock ring 5 is restored and reduced, and the insertion projection is removed. It was made to be able to engage with the part 7.
【0004】なお、上記拡径ボルト17は、図10に示
すように中央にナット部17cが一体に設けられ、この
ナット部17cを境として両側に右ねじ17aと左ねじ
17bとが設けられ、同一方向の回転で両側の拡大治具
16が接近または離反するようにされている。As shown in FIG. 10, the diameter-enlarging bolt 17 is provided with a nut 17c at the center and a right-hand screw 17a and a left-hand screw 17b on both sides of the nut 17c. With the rotation in the same direction, the expanding jigs 16 on both sides approach or separate from each other.
【0005】[0005]
【発明が解決しようとする課題】しかし、上記拡大治具
16を介挿する場合、挿口6外面と受口2内面との間に
拡大治具16を挿入できる隙間S、図示例の場合ロック
リング収納溝3の受口外側面を形成する堤壁3aの先端
部3bと挿口1の外面との間の隙間Sが必ず必要とな
り、その隙間Sがないと接合が非常に困難か不可能とな
る問題があった。However, when the above-mentioned expanding jig 16 is inserted, a gap S for inserting the expanding jig 16 between the outer surface of the insertion port 6 and the inner surface of the receiving port 2 is locked. A gap S between the distal end portion 3b of the bank wall 3a forming the outer surface of the receiving opening of the ring storage groove 3 and the outer surface of the insertion opening 1 is necessarily required, and if there is no gap S, joining is extremely difficult or impossible. There was a problem.
【0006】ところが、曲管の一端に受口を形成したよ
うな異形管の耐震管継手の場合、寸法公差以内に成形さ
れた管であっても、公差内最小径の受口と公差内最大径
の挿口とが組み合わさった場合、上記隙間Sが殆ど無く
なる事があり、拡大治具16の挿入が不可能となり、簡
易な接合作業が困難となるといった問題があった。この
発明は、上記問題を解消し寸法公差の関係で受口内面と
挿口外面との間の隙間がほとんど無くなるような異形管
の耐震管継手の場合でも、治具を用いて容易に耐震管継
手の接続が出来るようにすることを課題としてなされた
ものである。However, in the case of a seismic pipe joint of a deformed pipe in which a receiving port is formed at one end of a curved pipe, even if the pipe is formed within the dimensional tolerance, the receiving port having the minimum diameter within the tolerance and the maximum port within the tolerance. When combined with an insertion opening having a diameter, the gap S may be almost eliminated, and there is a problem that the insertion of the expanding jig 16 becomes impossible and a simple joining operation becomes difficult. The present invention solves the above-described problems and easily applies a seismic pipe using a jig even in the case of a deformed pipe seismic pipe joint in which a gap between the inner surface of the receiving port and the outer surface of the insertion port is almost eliminated due to dimensional tolerances. The object of the present invention is to enable connection of a joint.
【0007】[0007]
【課題を解決するための手段】上記課題を解消するた
め、請求項1の耐震管継手は、管受口の内面にロックリ
ング収納溝が形成され、該収納溝に芯出し用ゴムを介し
て一つ割りのロックリングを収納し、該ロックリングの
割り部を広げて先端に突部を有する挿口を前記受口内へ
挿入し、該挿入後に前記ロックリングを元通りに縮径さ
せ前記挿口突部に係合可能なようにした異形管の耐震管
継手において、前記管受口の内面に開口端より前記ロッ
クリングの収納溝に至る案内溝が形成されてなる。According to a first aspect of the present invention, there is provided an earthquake-resistant pipe joint according to the first aspect, wherein a lock ring storage groove is formed on an inner surface of the pipe socket, and a centering rubber is provided in the storage groove. The lock ring is housed, the split portion of the lock ring is widened, an insertion port having a projection at the tip is inserted into the receptacle, and after the insertion, the lock ring is reduced in diameter to the original state, and the insertion is performed. In a seismic pipe joint of a deformed pipe adapted to be engageable with a mouth projection, a guide groove extending from an open end to a storage groove of the lock ring is formed in an inner surface of the pipe socket.
【0008】この発明によれば受口内面に開口端よりロ
ックリングの収納溝に至る案内溝を形成したので、隙間
が僅かな場合であっても拡大治具は上記案内溝を利用し
て確実に挿入でき、また管接続後の治具の引き抜きも容
易に行なえる。請求項2の異形管の耐震管継手の接続方
法は、請求項1における異形管の耐震管継手のロックリ
ングの収納溝に芯出し用ゴムを収納した上で、一つ割り
のロックリングを収納し、該ロックリングの割り部に拡
大器を介挿して前記割り部を広げて前記ロックリングの
径を拡大し前記収納溝内に前記ロックリング全体を収納
し、次いで前記拡大された割り部に板状体を挿入して前
記拡大器を取外し、案内溝に前記板状体の柄部を沿わせ
て配置した後、先端に突部を有する挿口を前記受口内へ
挿入し、該挿口の突部がロックリング位置を越えて受口
奥部まで挿入されれば前記板状体を前記案内溝を通じて
引き抜き、前記ロックリングを元通りに縮径させ前記挿
口突部に係合可能なようにしたものである。According to the present invention, since the guide groove extending from the open end to the storage groove of the lock ring is formed on the inner surface of the receiving port, even if the gap is small, the expanding jig can reliably use the guide groove. The jig can be easily pulled out after connecting the pipe. According to a second aspect of the present invention, the centering rubber is stored in the storage groove of the lock ring of the deformed pipe according to the first aspect, and then the split lock ring is stored. Then, a magnifier is inserted into the split portion of the lock ring, the split portion is expanded, the diameter of the lock ring is enlarged, the entire lock ring is stored in the storage groove, and then the expanded split portion is inserted. After inserting the plate-shaped body and removing the magnifier, arranging the handle of the plate-shaped body along the guide groove, inserting an insertion port having a projection at the tip into the receptacle, If the projection is inserted beyond the lock ring position to the inner part of the receptacle, the plate-like body is pulled out through the guide groove, the lock ring is reduced in diameter to the original, and the projection can be engaged with the insertion projection. It is like that.
【0009】この方法によれば案内溝に薄い板状体を配
置することによってロックリングを確実に拡径でき、ま
た管接続後の引き抜きも容易に行なえるので、挿口外面
と受口内面との間に隙間がないような場合であっても容
易に接続が可能となる。請求項3の異形管の耐震管継手
の接続治具は、請求項1の異形管の耐震管継手における
管受口に収納されるロックリングの割り部に介挿される
幅広の板状体と、該板状体から延出し前記管受口内面の
案内溝に沿って配置される案内アーム部と、該案内アー
ム部の前記案内溝外部に形成された把持部とからなる。According to this method, the diameter of the lock ring can be reliably increased by arranging a thin plate in the guide groove, and the pipe can be easily pulled out after connecting the pipe. Even if there is no gap between them, connection can be easily made. A connecting jig for a deformed pipe seismic pipe joint according to claim 3 is a wide plate-shaped body inserted into a split portion of a lock ring housed in a pipe receptacle in the deformed pipe seismic pipe joint according to claim 1; The guide arm includes a guide arm extending from the plate-like body and arranged along a guide groove on the inner surface of the pipe receiving port, and a grip formed on the guide arm outside the guide groove.
【0010】この発明の耐震管継手の接続用治具によれ
ば、先端の幅広の板状体を広げた割り部に介挿するだけ
でロックリングの拡径状体を容易に維持する事ができ、
また把持部を支持して軸方向へ引っ張れば容易に抜きさ
ることができる。According to the jig for connecting a seismic pipe joint of the present invention, it is possible to easily maintain the large-diameter body of the lock ring simply by inserting the wide plate-like body at the tip into the widened split portion. Can,
In addition, if the grip portion is supported and pulled in the axial direction, it can be easily pulled out.
【0011】[0011]
【発明の実施の形態】次に、この発明の実施の形態を説
明する。図1はこの発明の実施の形態である異形管の耐
震管継手の断面図、図2は図1のa−a線断面図、図3
は接続用治具の斜視図である。なお、図1〜図3におい
て図8と同一符号で示す部材は同一または相当する部材
を示す。Next, an embodiment of the present invention will be described. FIG. 1 is a sectional view of an earthquake-resistant pipe joint of a deformed pipe according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line aa of FIG.
FIG. 3 is a perspective view of a connection jig. In FIGS. 1 to 3, members denoted by the same reference numerals as those in FIG. 8 indicate the same or corresponding members.
【0012】図1において、受口2の後端には図示は省
略されているが曲管が一体に形成され、異形管の耐震管
継手1とされている。そして、この異形管の耐震管継手
1の受口2には開口端2aより収納溝3に至る案内溝1
1が形成されている。この案内溝11の深さは受口2の
最内周部分の内面をわずかに削った形態で形成され、そ
の深さ及び幅は図3に示す接続用治具12の板状体13
を通過させ得る深さ及び幅とされている。In FIG. 1, a bent pipe (not shown) is integrally formed at the rear end of the receiving port 2 to form an earthquake-resistant pipe joint 1 of a deformed pipe. A guide groove 1 extending from an opening end 2a to a storage groove 3 is provided in a receiving port 2 of the earthquake-resistant pipe joint 1 of the deformed pipe.
1 is formed. The depth of the guide groove 11 is formed by slightly shaving the inner surface of the innermost peripheral portion of the socket 2, and the depth and width of the guide groove 11 are the plate-like body 13 of the connection jig 12 shown in FIG.
And the depth and width that can pass through.
【0013】上記耐震管継手の接続に使用される接続用
治具12は、図3に示すように受口2内面に沿う湾曲面
とされた幅広の板状体13とこの板状体13から延出し
前記案内溝11に沿って配置される案内アーム部14と
この案内アーム部14の案内溝外部に形成された把持部
15とからなり、全体が鋼板など金属板により折曲成形
されている。As shown in FIG. 3, a connection jig 12 used for connecting the above-mentioned earthquake-resistant pipe joint is formed of a wide plate-like body 13 having a curved surface along the inner surface of the receptacle 2 and a plate-like body 13. The guide arm 14 includes a guide arm portion 14 disposed along the guide groove 11 and a grip portion 15 formed outside the guide groove of the guide arm portion 14. The whole is bent and formed from a metal plate such as a steel plate. .
【0014】図中14aは中空部を示し、軽量化などを
目的として案内アーム部14に穿設されている。また、
図示のようにロックリング5の割り部5aに挿入される
板状体13と案内アーム部14を屈折した状態に折曲形
成することによって、前記割り部5a内への介挿が確実
に行なわれるようにし、また、受口2の外部へ延出され
る把持部15を鉤状に折曲形成し、引き抜き時の取り扱
いが容易な形状にされる。In the figure, reference numeral 14a denotes a hollow portion, which is formed in the guide arm portion 14 for the purpose of weight reduction or the like. Also,
As shown, the plate-like body 13 and the guide arm 14 inserted into the split portion 5a of the lock ring 5 are bent and formed in a bent state, so that the insertion into the split portion 5a is performed reliably. In addition, the grip portion 15 extending to the outside of the receiving port 2 is bent into a hook shape, so that the grip portion 15 can be easily handled at the time of pulling out.
【0015】また、接続用治具12は、割り部5aに介
挿したとき、拡径したロックリング5の縮径弾撥力によ
って座屈や曲げ変形を起こさない強度とされており、そ
のような強度を発揮し得る限りの薄さの板状体とされ、
例えば、厚さ1ミリ前後の鋼板、ステンレス板等で形成
されている。次に、この異形管の耐震管継手の接続方法
を説明する。The connecting jig 12 has such a strength that it does not cause buckling or bending deformation due to the reduced elasticity of the lock ring 5 when inserted into the split portion 5a. It is a plate-like body that is as thin as it can exhibit
For example, it is formed of a steel plate or a stainless steel plate having a thickness of about 1 mm. Next, a method of connecting the seismic pipe joint of the deformed pipe will be described.
【0016】図4に示すように受口2の収納溝3にロッ
クリング芯出しゴム4を収納し次いでロックリング5
を、割り部5aが案内溝11位置に対応するように収納
する。次いで、図5に示すようにロックリング5の割り
部5aに拡大器18を介挿して割り部5aを広げロック
リング5の径を拡径して収納溝3内に収納する。このよ
うにして広げた割り部5aに図1に示したように耐震管
継手の接続用治具12の板状体13を介挿し、案内アー
ム部14を案内溝11に沿わせてセットする。As shown in FIG. 4, the lock ring centering rubber 4 is stored in the storage groove 3 of the socket 2 and then the lock ring 5
Is stored such that the split portion 5a corresponds to the position of the guide groove 11. Next, as shown in FIG. 5, the split portion 5a is expanded by inserting the magnifier 18 into the split portion 5a of the lock ring 5, and the diameter of the lock ring 5 is increased to be stored in the storage groove 3. As shown in FIG. 1, the plate 13 of the connecting jig 12 of the seismic pipe joint is inserted into the split portion 5 a thus expanded, and the guide arm portion 14 is set along the guide groove 11.
【0017】拡大器18を取外しても割り部5aは板状
体13の介在により拡大したままロックされた状態とな
り、ロックリング5は収納溝3内に入ったままとなる。
また、案内アーム部14は案内溝11に収納されるの
で、管受口2の内面と挿口6外面との間に隙間がなくて
も案内アーム部14は確実に延在させることができる。Even if the expander 18 is removed, the split portion 5a is in a locked state while being expanded by the interposition of the plate-like body 13, and the lock ring 5 remains in the storage groove 3.
Further, since the guide arm 14 is housed in the guide groove 11, the guide arm 14 can be reliably extended even if there is no gap between the inner surface of the pipe receiving port 2 and the outer surface of the insertion port 6.
【0018】そして、挿口突部7がロックリング5を越
えて管受口奥方まで挿入されれば、把持部15を支持
し、案内溝11を通じ接続用治具12を引き抜く。この
引き抜きによって割り部5aは元通りの開口幅となりロ
ックリング5の径が縮径され収納溝3より内径方向へ突
出し、挿口突部7に係合可能となる。従って、上記挿口
突部7とロックリング5との係合により挿口6の脱け出
しが防止される。When the insertion protrusion 7 is inserted beyond the lock ring 5 to the inside of the pipe receiving port, the gripper 15 is supported, and the connection jig 12 is pulled out through the guide groove 11. By this pull-out, the split portion 5a becomes the original opening width, the diameter of the lock ring 5 is reduced, and the split ring 5a protrudes from the storage groove 3 in the inner diameter direction and can be engaged with the insertion projection 7. Therefore, the insertion of the insertion port 6 is prevented by the engagement between the insertion port projection 7 and the lock ring 5.
【0019】その後、図8に示したように受口2内面と
挿口6外面との間にバックアップリング8aとシール用
ゴム輪8を挿入し、押し輪9をセットしてボルトナット
10で締結してシールし管接続作業を終了する。このと
き、受口内面に形成された案内溝11は深さに比べ幅が
広く、例えば幅100ミリに対し深さ3ミリ程度で、シ
ール用ゴム輪8により受口開口部はシールされてしまう
ので、案内溝11を設けたことによる漏洩は生じない。Thereafter, as shown in FIG. 8, a backup ring 8a and a sealing rubber ring 8 are inserted between the inner surface of the receiving port 2 and the outer surface of the insertion port 6, and the pressing ring 9 is set and fastened with the bolt and nut 10. To complete the pipe connection operation. At this time, the guide groove 11 formed on the inner surface of the receiving port is wider than the depth, for example, about 3 mm in depth with respect to the width of 100 mm, and the opening of the receiving port is sealed by the sealing rubber ring 8. Therefore, the leakage due to the provision of the guide groove 11 does not occur.
【0020】上記実施の形態としてロックリング5の芯
出ゴム4は、図6に示すように帯状のリング体4a内面
に周方向に間隔を開けて多数の径方向薄肉リブ4b…4
bを立設した構成としても良い。この場合、芯出ゴム4
の径方向圧力が弱くなるので拡大器18あるいは拡径治
具16によりロックリング5を拡径する場合の抵抗が少
なくできる。In the above embodiment, the centering rubber 4 of the lock ring 5 is provided with a plurality of radially thin ribs 4b... 4 on the inner surface of a band-like ring body 4a at circumferential intervals as shown in FIG.
A configuration in which b is erected may be adopted. In this case, the centering rubber 4
In this case, the resistance in the case where the diameter of the lock ring 5 is expanded by the expander 18 or the diameter expansion jig 16 can be reduced.
【0021】また、上記実施の形態において、接続用治
具12の案内アーム部14の幅を幅広の板状体13と同
一幅としたが、図7に示すように把持部15を含め幅を
狭めた形状としても良い。また、上記実施の形態におい
て対象となる管継手は、ロックリングと挿口突部とを係
合させることにより脱け出し防止を図る構造のものであ
れば図示以外の構造の管継手でも適用可能である。In the above embodiment, the width of the guide arm 14 of the connecting jig 12 is the same as the width of the wide plate-like body 13. However, as shown in FIG. The shape may be narrowed. In addition, the pipe joints to be targeted in the above-described embodiment can be applied to pipe joints having a structure other than the illustrated one as long as they have a structure that prevents locking by engaging a lock ring and an insertion projection. It is.
【0022】[0022]
【発明の効果】この発明の異形管の耐震管継手は、ロッ
クリングの拡径治具を、管継手の受口内面に形成した案
内溝に収納することができるので、異形管の管継手の場
合にしばしば見られるように、受口内面と挿口外面との
間に隙間がほとんど無くなる場合であっても、ロックリ
ングの拡径が容易に可能となり、異形管の耐震管継手の
接続作業が容易となる。According to the seismic pipe joint for deformed pipes of the present invention, the jig for expanding the lock ring can be accommodated in the guide groove formed in the inner surface of the socket of the pipe joint. As is often the case, even when there is almost no gap between the inner surface of the receiving port and the outer surface of the insertion port, the diameter of the lock ring can be easily expanded, and the connection work of the seismic pipe joint of the deformed pipe can be performed. It will be easier.
【図1】本発明の実施の形態における異形管の耐震管継
手の断面図である。FIG. 1 is a sectional view of an earthquake-resistant pipe joint of a deformed pipe according to an embodiment of the present invention.
【図2】図1のa-a線矢視断面図である。FIG. 2 is a sectional view taken along line aa of FIG.
【図3】異形管の耐震管継手の接続用治具の斜視図であ
る。FIG. 3 is a perspective view of a jig for connecting a seismic pipe joint of a deformed pipe.
【図4】異形管の耐震管継手の接続状態を示す側断面図
である。FIG. 4 is a side sectional view showing a connection state of a seismic pipe joint of a deformed pipe.
【図5】異形管の耐震管継手の接続状態を示す正面断面
図である。FIG. 5 is a front sectional view showing a connection state of a seismic pipe joint of a deformed pipe.
【図6】ロックリング用芯出ゴムの他の構成例の正面図
である。FIG. 6 is a front view of another configuration example of the lock ring centering rubber.
【図7】異形管の耐震管継手の接続用治具の他の構成例
の斜視図である。FIG. 7 is a perspective view of another configuration example of a connection jig for a seismic pipe joint of a deformed pipe.
【図8】従来例の断面図である。FIG. 8 is a sectional view of a conventional example.
【図9】従来の耐震管継手の接続状態を示す断面図であ
る。FIG. 9 is a sectional view showing a connection state of a conventional earthquake-resistant pipe joint.
【図10】従来の耐震管継手の接続状態を示す要部正面
図である。FIG. 10 is a front view of a main part showing a connection state of a conventional earthquake-resistant pipe joint.
1 管 2 受口 3 収納溝 4 ロックリング芯出ゴム 5 ロックリング 5a 割り部 6 挿口 11 案内溝 12 耐震管継手の接続用治具 13 板状体 14 案内アーム部 15 把持部 DESCRIPTION OF SYMBOLS 1 Pipe 2 Reception port 3 Storage groove 4 Lock ring centering rubber 5 Lock ring 5a Splitting part 6 Insertion opening 11 Guide groove 12 Jig for connecting seismic pipe joint 13 Plate 14 Guide arm part 15 Grip part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 菊地 庸夫 兵庫県尼崎市大浜町2丁目26番地 株式会 社クボタ武庫川製造所内 Fターム(参考) 3H015 FA03 FA04 FA05 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yasuo Kikuchi 2-26, Ohama-cho, Amagasaki-shi, Hyogo F-term in Kubota Mukogawa Works (reference) 3H015 FA03 FA04 FA05
Claims (3)
成され、該収納溝に芯出し用ゴムを介して一つ割りのロ
ックリングを収納し、該ロックリングの割り部を広げて
先端に突部を有する挿口を前記受口内へ挿入し、該挿入
後に前記ロックリングを元通りに縮径させ前記挿口突部
に係合可能なようにした異形管の耐震管継手において、
前記管受口の内面に開口端より前記ロックリングの収納
溝に至る案内溝が形成されてなる異形管の耐震管継手。A lock ring receiving groove is formed in an inner surface of a pipe receiving port, a split lock ring is stored in the receiving groove via a centering rubber, and a split portion of the lock ring is widened and a tip is formed. In a seismic pipe joint of a deformed pipe in which an insertion port having a projection is inserted into the reception port, and after the insertion, the lock ring is reduced in diameter to be able to engage with the insertion port projection.
A seismic pipe joint for a deformed pipe, wherein a guide groove extending from an open end to a storage groove of the lock ring is formed on an inner surface of the pipe socket.
ロックリングの収納溝に芯出し用ゴムを収納した上で、
一つ割りのロックリングを収納し、該ロックリングの割
り部に拡大器を介挿して前記割り部を広げて前記ロック
リングの径を拡大し前記収納溝内に前記ロックリング全
体を収納し、次いで前記拡大された割り部に板状体を挿
入して前記拡大器を取外し、案内溝に前記板状体の柄部
を沿わせて配置した後、先端に突部を有する挿口を前記
受口内へ挿入し、該挿口の突部がロックリング位置を越
えて受口奥部まで挿入されれば前記板状体を前記案内溝
を通じて引き抜き、前記ロックリングを元通りに縮径さ
せ前記挿口突部に係合可能なようにする異形管の耐震管
継手の接続方法。2. A centering rubber is stored in a storage groove of a lock ring of a seismic pipe joint for a deformed pipe according to claim 1,
Storing the split lock ring, expanding the split portion by inserting a magnifier into the split portion of the lock ring, expanding the diameter of the lock ring, and storing the entire lock ring in the storage groove, Next, a plate-like body is inserted into the enlarged split portion, the magnifier is removed, and a handle portion of the plate-like body is arranged along a guide groove. When the insertion portion is inserted into the mouth, and the projection of the insertion hole is inserted beyond the lock ring position to the inside of the receiving port, the plate-like body is pulled out through the guide groove, the lock ring is reduced in diameter to the original diameter, and the insertion is performed. A method of connecting a seismic pipe joint of a deformed pipe so that it can be engaged with a mouth projection.
管受口に収納されるロックリングの割り部に介挿される
幅広の板状体と、該板状体から延出し前記管受口内面の
案内溝に沿って配置される案内アーム部と、該案内アー
ム部の前記案内溝外部に形成された把持部とからなる耐
震管継手の接続用治具。3. A wide plate-like body inserted into a split portion of a lock ring housed in a pipe socket in the deformed pipe seismic pipe joint of claim 1, and the pipe socket extending from the plate-like body. A jig for connecting a seismic pipe joint, comprising: a guide arm portion arranged along a guide groove on an inner surface; and a grip portion formed outside the guide groove of the guide arm portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11115595A JP2000304176A (en) | 1999-04-23 | 1999-04-23 | Earthquake-resistant pipe joint for deformed pipe, and method and jig for connecting the pipe joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11115595A JP2000304176A (en) | 1999-04-23 | 1999-04-23 | Earthquake-resistant pipe joint for deformed pipe, and method and jig for connecting the pipe joint |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2000304176A true JP2000304176A (en) | 2000-11-02 |
Family
ID=14666512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11115595A Pending JP2000304176A (en) | 1999-04-23 | 1999-04-23 | Earthquake-resistant pipe joint for deformed pipe, and method and jig for connecting the pipe joint |
Country Status (1)
Country | Link |
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JP (1) | JP2000304176A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003240170A (en) * | 2002-02-13 | 2003-08-27 | Kubota Corp | Handling method of pipe |
EP1584854A1 (en) * | 2003-01-07 | 2005-10-12 | Kubota Corporation | Pipe joint with earthquake-proof function |
JP2006226312A (en) * | 2005-02-15 | 2006-08-31 | Victaulic Co Of Japan Ltd | Housing type pipe joint |
-
1999
- 1999-04-23 JP JP11115595A patent/JP2000304176A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003240170A (en) * | 2002-02-13 | 2003-08-27 | Kubota Corp | Handling method of pipe |
EP1584854A1 (en) * | 2003-01-07 | 2005-10-12 | Kubota Corporation | Pipe joint with earthquake-proof function |
EP1584854A4 (en) * | 2003-01-07 | 2007-04-04 | Kubota Kk | Pipe joint with earthquake-proof function |
JP2006226312A (en) * | 2005-02-15 | 2006-08-31 | Victaulic Co Of Japan Ltd | Housing type pipe joint |
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