JPH10164742A - Straight pipe joint for corrugated pipe - Google Patents
Straight pipe joint for corrugated pipeInfo
- Publication number
- JPH10164742A JPH10164742A JP8319933A JP31993396A JPH10164742A JP H10164742 A JPH10164742 A JP H10164742A JP 8319933 A JP8319933 A JP 8319933A JP 31993396 A JP31993396 A JP 31993396A JP H10164742 A JPH10164742 A JP H10164742A
- Authority
- JP
- Japan
- Prior art keywords
- joint
- projection
- straight pipe
- corrugated
- bodies
- 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.)
- Granted
Links
Landscapes
- Joints That Cut Off Fluids, And Hose Joints (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
Description
【０００１】本発明は、波形管用直管継手、詳しくは、
２本の波形管の端部を突き合わせ、該突き合わせ部分を
連結するための直管継手に関する。[0001] The present invention relates to a straight pipe joint for corrugated pipes,
The present invention relates to a straight pipe joint for abutting ends of two corrugated tubes and connecting the abutting portions.
【０００２】[0002]
【従来の技術】一般に、地中埋設用の電線管として合成
樹脂製の螺旋波形管又は環状波形管が用いられており、
この波形管を連結するための直管継手としては、例え
ば、実開昭６３−１３８８２７号公報、実開平６−４４
３３４号公報に記載のものが知られている。これらの直
管継手は、２本の波形管の端部を２分割された一対の継
手本体でシール材を介して挟み込み、それぞれの継手本
体の両側に設けたフランジ部をボルトとナットで締め付
けて連結するようにしたものである。2. Description of the Related Art In general, a spiral corrugated tube or a circular corrugated tube made of synthetic resin is used as an underground conduit.
A straight pipe joint for connecting the corrugated pipe is disclosed in, for example, Japanese Utility Model Laid-Open Publication No. 63-138827 and Japanese Utility Model Laid-Open Publication No. 6-44.
No. 334 is known. In these straight pipe joints, the ends of two corrugated pipes are sandwiched between a pair of split joint bodies via a sealing material, and flange portions provided on both sides of each joint body are tightened with bolts and nuts. It is designed to be connected.
【０００３】[0003]
【発明が解決しようとする課題】ところで、長尺に成形
された波形管は円形状に巻いた状態で保管・輸送される
ために巻き癖が付いており、特に口径の大きな波形管の
端部は反りの程度が大きく、一対の継手本体で波形管を
挟み込んだときに、反りによる反発力を押さえ込む必要
がある。従って、現状では１人が一対の継手本体を押さ
えながら他の１人がボルトにナットを取り付けている。
これでは２人の作業者が必要であり、非能率的である。Incidentally, a corrugated tube formed in a long shape has a curl because it is stored and transported in a state of being wound in a circular shape, and particularly, an end portion of a corrugated tube having a large diameter. The degree of warpage is large, and when the corrugated tube is sandwiched between a pair of joint bodies, it is necessary to suppress the repulsive force due to the warp. Therefore, at present, one person holds the pair of joint bodies while the other person attaches the nut to the bolt.
This requires two workers and is inefficient.
【０００４】そこで、本発明の目的は、１人の作業者で
能率よく波形管を連結できる直管継手を提供することに
ある。Accordingly, an object of the present invention is to provide a straight pipe joint in which a single operator can efficiently connect a corrugated pipe.
【０００５】[0005]
【発明の構成、作用及び効果】以上の目的を達成するた
め、本発明に係る直管継手は、ボルトとナットで締め付
けられる一対の継手本体のうち、一方の継手本体のフラ
ンジ部に抜け止め用係合段差部を有する突状体を設け、
他方の継手本体のフランジ部に前記突状体の突入によっ
て係合段差部に係合する突部を有する係合孔を設けた。In order to achieve the above object, a straight pipe joint according to the present invention is provided for preventing a joint of a pair of joint bodies fastened by bolts and nuts from coming off at a flange portion of one of the joint bodies. Providing a projection having an engagement step,
An engagement hole having a projection that engages with the engagement step by the entry of the projection into the flange of the other joint body is provided.
【０００６】２本の波形管の端部を突き合わせ、一対の
継手本体で挟み込む際、突状体が係合孔に突入して両者
が係合し、突状体の係合孔からの抜け止めが図られる。
これにて、継手本体が波形管の端部の反りによる反発力
を受けても一対の継手本体の連結状態が仮止めされたこ
とになる。When the ends of the two corrugated tubes are abutted and sandwiched between a pair of joint bodies, the protrusions protrude into the engagement holes and engage with each other to prevent the protrusions from slipping out of the engagement holes. Is achieved.
Thus, even if the joint body receives a repulsive force due to the warpage of the end of the corrugated tube, the connection state of the pair of joint bodies is temporarily stopped.
【０００７】従って、本発明によれば、１人の作業者が
片手で継手本体を支えながら一方の片手でボルトにナッ
トを取り付けることができ、従来のように２人の作業者
を必要とすることなく、能率よく連結作業を行うことが
できる。Therefore, according to the present invention, one worker can attach the nut to the bolt with one hand while supporting the joint body with one hand, which requires two workers as in the prior art. The connection work can be performed efficiently without any need.
【０００８】[0008]
【発明の実施の形態】以下、本発明に係る波形管用直管
継手の実施形態について添付図面を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a straight pipe joint for a corrugated pipe according to the present invention will be described below with reference to the accompanying drawings.
【０００９】図１において、一実施形態である直管継手
の構成部品を示す。この直管継手は、継手本体１０，２
０と、シール材３０，４０と、ボルト５１，５１、ナッ
ト５２，５２とで構成されている。さらに、一方の継手
本体１０のフランジ部１１，１１には仮止めピン１３が
突設され、他方の継手本体２０のフランジ部２１，２１
には係合孔部材２３が埋め込まれている。FIG. 1 shows components of a straight pipe joint according to an embodiment. This straight pipe joint has a joint body 10, 2
0, sealing materials 30 and 40, bolts 51 and 51, and nuts 52 and 52. Further, temporary fixing pins 13 are protruded from the flange portions 11, 11 of one joint body 10, and the flange portions 21, 21 of the other joint body 20.
Has an engaging hole member 23 embedded therein.
【００１０】継手本体１０，２０は、硬質樹脂（例え
ば、ＡＢＳ樹脂、ポリエチレン、ポリプロピレン等）に
て形成され、内面には螺旋波形管１（図５参照）の外面
形状より若干大きい螺旋波形が形成されている。また、
両側のフランジ部１１，２１には、ボルト座孔１２とボ
ルト貫通孔２２がそれぞれ形成されている。The joint bodies 10, 20 are formed of a hard resin (for example, ABS resin, polyethylene, polypropylene, etc.), and a spiral waveform slightly larger than the outer shape of the spiral waveform tube 1 (see FIG. 5) is formed on the inner surface. Have been. Also,
Bolt seat holes 12 and bolt through holes 22 are formed in the flange portions 11 and 21 on both sides, respectively.
【００１１】仮止めピン１３は、図２に示すように、樹
脂材からなり、外周面に歯状の凹凸からなる係合段差部
１４が略全長にわたって形成され、かつ、２本の溝部１
５，１５によって半径方向に４分割されている。この仮
止めピン１３は基部１６がフランジ部１１に埋め込まれ
た状態で突設されている一方、係合孔部材２３は、図３
に示すように、樹脂材から円筒状に成形したもので、内
周面に歯状の突部２４がリング状に突設されている。こ
の係合孔部材２３はフランジ部２１に埋め込まれてい
る。As shown in FIG. 2, the temporary fixing pin 13 is made of a resin material, has an engaging step portion 14 formed of tooth-like irregularities on the outer peripheral surface over substantially the entire length, and has two groove portions 1.
It is divided into four in the radial direction by 5,15. The temporary fixing pin 13 is protruded with the base portion 16 embedded in the flange portion 11, while the engagement hole member 23 is
As shown in (1), it is formed into a cylindrical shape from a resin material, and a tooth-shaped protrusion 24 is provided on the inner peripheral surface in a ring shape. This engagement hole member 23 is embedded in the flange portion 21.
【００１２】シール材３０，４０は、軟質樹脂又はゴム
（例えば、硬度４０Ｈｓの合成ゴム、エチレンプロピレ
ンゴム、クロロプレンゴム等）にて形成され、内面には
螺旋波形管１（図５参照）の外面形状と同形状の螺旋波
形が形成され、外面には前記継手本体１０，２０の内面
形状と同形状の螺旋波形が形成されている。また、両側
にはフランジ部３１，４１が設けられ、フランジ部３
１，４１の根元部分には突条３２，４２が波形に連続し
て形成されている。The seal members 30 and 40 are made of a soft resin or rubber (for example, synthetic rubber having a hardness of 40 Hs, ethylene propylene rubber, chloroprene rubber, or the like), and have an inner surface on the outer surface of the spiral corrugated tube 1 (see FIG. 5). A spiral waveform having the same shape as the shape is formed, and a spiral waveform having the same shape as the inner surface shape of the joint bodies 10 and 20 is formed on the outer surface. Further, flange portions 31 and 41 are provided on both sides, and the flange portions 3 and 41 are provided.
Protrusions 32 and 42 are formed at the roots of the bases 1 and 41 so as to be continuous with the waveform.
【００１３】以上の構成からなる直管継手は、まず、シ
ール材３０，４０をそれぞれの継手本体１０，２０の内
側に嵌め込み、図５（Ａ）に示すように、ボルト５１を
座孔１２に挿入した継手本体１０上に２本の螺旋波形管
１，１の端部を載置し、その上から継手本体２０を被せ
る。このとき、図５（Ｂ）に示すように、ボルト５１が
貫通孔２２に挿入されると共に、仮止めピン１３が係合
孔部材２３に挿入される。次に、図５（Ｃ）に示すよう
に、ナット５２をボルト５１に取り付け、該ナット５２
を締め付けていく。In the straight pipe joint having the above-described structure, first, the seal members 30 and 40 are fitted inside the respective joint bodies 10 and 20, and the bolts 51 are inserted into the seat holes 12 as shown in FIG. The ends of the two spiral corrugated tubes 1 and 1 are placed on the inserted joint body 10, and the joint body 20 is put thereon. At this time, as shown in FIG. 5B, the bolt 51 is inserted into the through hole 22 and the temporary fixing pin 13 is inserted into the engagement hole member 23. Next, as shown in FIG. 5C, a nut 52 is attached to the bolt 51, and the nut 52 is
Tighten.
【００１４】ところで、図５（Ａ）に示されているよう
に、波形管１の端部が反り返っているため、継手本体２
０を上側から押さえ込んで、やっとボルト５１の先端が
フランジ部２１から突出する程度である（図５（Ｂ）参
照）。従来は、このとき１人が継手本体１０，２０を保
持し、他の１人がナット５２をボルト５１に取り付けて
いた。しかし、本実施形態においては、図５（Ｂ）に示
す工程において、仮止めピン１３の係合段差部１４に係
合孔部材２３の突部２４が係合する。係合段差部１４と
突部２４は、いわばラチェット歯とラチェットの関係に
あり、仮止めピン１３の挿入は可能であるが、抜ける方
向にはロックされる関係にある。従って、図５（Ｂ）に
示す状態で、ナット５２を取り付けるために継手本体２
０から手を離したとしても継手本体２０が外れるおそれ
はなく、１人で連結作業を遂行することができる。By the way, as shown in FIG. 5A, since the end of the corrugated tube 1 is warped, the joint body 2
0 is pressed down from the upper side, and the end of the bolt 51 finally protrudes from the flange portion 21 (see FIG. 5B). Conventionally, at this time, one person holds the joint bodies 10 and 20 and the other person attaches the nut 52 to the bolt 51. However, in the present embodiment, in the step shown in FIG. 5B, the projection 24 of the engagement hole member 23 is engaged with the engagement step 14 of the temporary fixing pin 13. The engagement step 14 and the projection 24 are in a so-called ratchet-to-ratchet relationship, so that the temporary fixing pin 13 can be inserted, but locked in the direction in which the pin is pulled out. Therefore, in the state shown in FIG.
Even if the hand is released from 0, there is no danger that the joint body 20 will come off, and the connecting operation can be performed by one person.
【００１５】仮止めピン１３を４分割したのは、ピン１
３に係合孔部材２３に挿入される際に柔軟性を持たせて
挿入を容易にするためであり、２分割であってもよい。The reason why the temporary fixing pin 13 is divided into four parts is that the pin 1
This is for giving flexibility when inserting into the engaging hole member 23 in the engaging hole member 3 to facilitate insertion, and may be divided into two.
【００１６】図４は連結された状態を示す。ボルト５１
とナット５２の締め付けによって、シール材３０，４０
が波形管１と継手本体１０，２０との間に圧着され、特
に、突条３２，４２が互いに圧接することで、波形管１
の内部が水密に保持される。FIG. 4 shows a connected state. Bolt 51
The sealing members 30 and 40 are tightened by
Is crimped between the corrugated tube 1 and the joint bodies 10 and 20. In particular, when the ridges 32 and 42 are pressed against each other, the corrugated tube 1 is pressed.
Is kept watertight.
【００１７】なお、本発明に係る直管継手は前記実施形
態に限定するものではなく、その要旨の範囲内で種々に
変更することができる。例えば、仮止めピン１３に係合
する突部２４はフランジ部２１に設けた孔に直接形成し
てもよい。また、一方の継手本体１０のフランジ部１
１，１１にボルトを一体的に設け、他方の継手本体２０
の孔２２，２２に挿入してナットで締め付けるようにし
てもよい。さらに、シール材３０，４０については任意
のものを採用することができる。The straight pipe joint according to the present invention is not limited to the above embodiment, but can be variously modified within the scope of the invention. For example, the projection 24 that engages with the temporary fixing pin 13 may be formed directly in a hole provided in the flange 21. Also, the flange portion 1 of one joint body 10
1 and 11 are integrally provided with bolts, and the other joint body 20 is provided.
May be inserted into the holes 22 and 22 and fastened with a nut. Further, as the sealing materials 30 and 40, any materials can be adopted.
【００１８】また、仮止めピン１３は分割されたものが
好ましいが、非分割のものでも使用可能である。さら
に、仮止めピン１３と係合孔部材２３は、継手本体１
０，２０の軸方向中央部分の両側に１箇所ずつ設けても
よい。The temporary fixing pins 13 are preferably divided, but non-divided ones can also be used. Furthermore, the temporary fixing pin 13 and the engagement hole member 23 are
One portion may be provided on both sides of the central portion in the axial direction of 0, 20.
【図１】本発明の一実施形態である直管継手を示す分解
斜視図。FIG. 1 is an exploded perspective view showing a straight pipe joint according to an embodiment of the present invention.
【図２】仮止めピンを示し、（Ａ）は平面図、（Ｂ）は
正面図。2 (A) is a plan view and FIG. 2 (B) is a front view showing a temporary fixing pin.
【図３】係合孔部材を示す断面図。FIG. 3 is a sectional view showing an engagement hole member.
【図４】前記直管継手で波形管を連結した状態を示す断
面図。FIG. 4 is a sectional view showing a state where a corrugated pipe is connected by the straight pipe joint.
【図５】前記直管継手による連結工程を示す説明図。FIG. 5 is an explanatory view showing a connecting step by the straight pipe joint.
１…波形管 １０，２０…継手本体 １１，２１…フランジ部 １３…仮止めピン １４…係合段差部 ２３…係合孔部材 ２４…突部 ５１…ボルト ５２…ナット DESCRIPTION OF SYMBOLS 1 ... Corrugated pipe 10, 20 ... Joint main body 11, 21 ... Flange part 13 ... Temporary fixing pin 14 ... Engagement step difference part 23 ... Engagement hole member 24 ... Projection part 51 ... Bolt 52 ... Nut
───────────────────────────────────────────────────── フロントページの続き (72)発明者 服部 承治 静岡県掛川市淡陽６番地 タイガースポリ マー株式会社静岡工場内 (72)発明者 吉富 義樹 静岡県掛川市淡陽６番地 タイガースポリ マー株式会社静岡工場内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Seiji Hattori 6 Titan Polymer, Shizuoka Pref. in the factory
Claims (2)
対の継手本体で挟み込み、それぞれの継手本体の両側に
設けたフランジ部をボルトとナットで締め付けて連結す
る直管継手において、 一方の継手本体のフランジ部に抜け止め用係合段差部を
有する突状体を設け、 他方の継手本体のフランジ部に前記突状体の突入によっ
て係合段差部に係合する突部を有する係合孔を設けたこ
と、 を特徴とする直管継手。1. A straight pipe joint in which ends of two corrugated pipes are sandwiched between a pair of divided joint bodies, and flange portions provided on both sides of each joint body are connected by tightening with bolts and nuts. A projection having a retaining engagement step is provided on a flange portion of one of the joint bodies, and a projection that engages with the engagement step portion by the projection of the projection is provided on a flange portion of the other joint body. A straight pipe joint characterized by having an engagement hole having the same.
歯状の凹凸からなる係合段差部が略全長にわたって形成
され、かつ、少なくとも半径方向に２分割されているこ
とを特徴とする請求項１記載の直管継手。2. The projection according to claim 1, wherein the projection has a columnar shape, and an engaging step portion having tooth-like irregularities is formed on the outer peripheral portion over substantially the entire length, and is divided at least in the radial direction. The straight pipe joint according to claim 1, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31993396A JP3331132B2 (en) | 1996-11-29 | 1996-11-29 | Straight pipe fitting for corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31993396A JP3331132B2 (en) | 1996-11-29 | 1996-11-29 | Straight pipe fitting for corrugated pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10164742A true JPH10164742A (en) | 1998-06-19 |
| JP3331132B2 JP3331132B2 (en) | 2002-10-07 |
Family
ID=18115870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31993396A Expired - Fee Related JP3331132B2 (en) | 1996-11-29 | 1996-11-29 | Straight pipe fitting for corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3331132B2 (en) |
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|---|---|---|---|---|
| KR100387608B1 (en) * | 2001-03-21 | 2003-06-18 | 엘지전선 주식회사 | Cleat For Super High-Voltage Cable |
| KR100998766B1 (en) | 2010-09-18 | 2010-12-07 | (주)태양이엔지 | Apparatus for fixing underground cable for distribution and transmission of electricity |
| CN105020529A (en) * | 2015-07-03 | 2015-11-04 | 天津鑫坤泰预应力专业技术有限公司 | Bolt-locking sealing joint for connecting bamboo-joint-shaped prestressed plastic pipes |
| KR101653665B1 (en) * | 2016-01-29 | 2016-09-02 | 주식회사 대성이엔지 (Eng) | Fixing bracket for underground distribution line |
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| CN110425350A (en) * | 2019-09-06 | 2019-11-08 | 康命源（安徽）塑料科技发展股份有限公司 | A kind of double-wall corrugated pipeline bell and spigot Enhancement Method and profiling clad structure |
| KR102416860B1 (en) * | 2021-07-09 | 2022-07-06 | 주식회사 앨토퍼스 | Cable protector connector |
-
1996
- 1996-11-29 JP JP31993396A patent/JP3331132B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100387608B1 (en) * | 2001-03-21 | 2003-06-18 | 엘지전선 주식회사 | Cleat For Super High-Voltage Cable |
| KR100998766B1 (en) | 2010-09-18 | 2010-12-07 | (주)태양이엔지 | Apparatus for fixing underground cable for distribution and transmission of electricity |
| CN105020529A (en) * | 2015-07-03 | 2015-11-04 | 天津鑫坤泰预应力专业技术有限公司 | Bolt-locking sealing joint for connecting bamboo-joint-shaped prestressed plastic pipes |
| KR101653665B1 (en) * | 2016-01-29 | 2016-09-02 | 주식회사 대성이엔지 (Eng) | Fixing bracket for underground distribution line |
| CN108233289A (en) * | 2016-12-21 | 2018-06-29 | 住友电装株式会社 | Wire bushing and the harness with wire bushing |
| CN108288772A (en) * | 2017-01-09 | 2018-07-17 | 住友电装株式会社 | Waterproof protector and harness with protector |
| JP2019134623A (en) * | 2018-02-01 | 2019-08-08 | 東拓工業株式会社 | Cable protection tube connector |
| CN110281201A (en) * | 2019-07-02 | 2019-09-27 | 大同泰瑞集团建设有限公司 | A kind of effective efficient docking facilities of ripple |
| CN110281201B (en) * | 2019-07-02 | 2024-04-26 | 大同泰瑞集团建设有限公司 | Efficient butt joint device for corrugated pipe |
| CN110425350A (en) * | 2019-09-06 | 2019-11-08 | 康命源（安徽）塑料科技发展股份有限公司 | A kind of double-wall corrugated pipeline bell and spigot Enhancement Method and profiling clad structure |
| KR102416860B1 (en) * | 2021-07-09 | 2022-07-06 | 주식회사 앨토퍼스 | Cable protector connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3331132B2 (en) | 2002-10-07 |
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| LAPS | Cancellation because of no payment of annual fees |