JPH11324094A - Vinyl chloride-made small bore diameter pit easy to be laid on very narrow area - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute a vinyl chloride-made small bore diameter easy to be laid on a very narrow area. SOLUTION: Sockets for upper and lower main flow pipes 52, 53 are provided on a drain pit 51 having an inspection cylinder socket 54, and a branch flow pipe socket 56 is provided. A 45 degrees elbow 5 is provided on the branch flow pipe socket 56 and a spherical adjustable joint 1 is provided on the 45 degrees elbow 5. Since the 45 degrees elbow and the spherical adjustable joint 1 are constituted of an adhesion socket adjustable 15 degrees bent pipe type elbow 5, the spherical adjustable joint 1 and the socket for the upper main flow pipe 52 are not interfered, made compact and can be easily laid on a very narrow area.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、極狭小地に布設容
易な塩ビ製小口径ますに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-diameter PVC truss which can be easily laid on a very small area.

【０００２】[0002]

【従来の技術】周知の如く日本下水道協会規格による
と、４５°合流塩ビ製小口径ます（Ｙ継手型小口径ます
ともいい、これを第１の従来例とする）は、次のように
構成されている。2. Description of the Related Art As is well known, according to the standards of the Japan Sewage Works Association, a small-diameter 45 ° merging PVC (also referred to as a Y-joint type small-diameter) is constructed as follows. Have been.

【０００３】すなわち、図３および図４に示すように、
４５°合流塩ビ製小口径ます５０は、ます本体５１の平
面視での直線状主軸（以下、単に主軸という）ａ上に、
上、下流側の主流管用受口５２，５３を設け、この主軸
ａに直交して地表側に点検筒用受口５４を設け、ます本
体５１の横側に、前記主軸ａに対し上流側に４５°傾斜
した副軸ｂ上に、その切口５５が主軸ａに対し４５°傾
斜した分流管用受口５６を設けたもので、その寸法は、
点検筒用受口５４の呼び径が１５０ｍｍφの場合、上、
下流側の主流管用受口５２，５３の呼び径Ｌが１００ｍ
ｍφ、これらの受口５２，５３の間隔Ｚ１が１９０ｍ
ｍ、上流側の主流管用受口５２の管底と点検筒用受口５
４との高さＨが１３０ｍｍとなっている。That is, as shown in FIGS. 3 and 4,
The 45 ° merged PVC small-diameter masque 50 is disposed on a straight main axis (hereinafter, simply referred to as main axis) a of the main body 51 in a plan view.
Upper and downstream main flow pipe receptacles 52 and 53 are provided, and a check pipe receptacle 54 is provided on the surface side orthogonal to the main axis a, and on the side of the main body 51, upstream on the main axis a. On the sub-axis b inclined at 45 °, a cutout 55 is provided with a branch pipe receiving port 56 inclined at 45 ° with respect to the main axis a.
When the nominal diameter of the check port 54 is 150 mmφ,
The nominal diameter L of the downstream main flow pipe receiving ports 52 and 53 is 100 m.
mφ, the interval Z1 between these receiving ports 52, 53 is 190 m
m, the pipe bottom of the main stream pipe port 52 on the upstream side and the check pipe port 5
4, and the height H is 130 mm.

【０００４】そして、これらの受口５２，５３，５４お
よび５６の受口長さは、当該受口の呼び径によって規格
で決められ、また、主軸ａと副軸ｂとの交点Ｐと分流管
用受口５６のストッパ−との距離Ｚ２は１６５ｍｍにな
っている。なお、図示のものは段差Ｓ付４５°合流塩ビ
製小口径ます５０を示している。[0004] The lengths of the receiving ports 52, 53, 54 and 56 are determined by a standard according to the nominal diameter of the receiving ports. The distance Z2 between the receiving port 56 and the stopper is 165 mm. The figure shows a small-diameter square 50 made of PVC with a 45 ° junction with a step S.

【０００５】一方、かかる４５°合流塩ビ製小口径ます
５０を改良して極狭小地にも容易に設置（布設）可能に
するため、図５に示すように、分流管用受口５６の受口
長さを規格長さより短縮し、この分流管用受口５６に４
５°エルボ５８をｆ矢印のように１８０°の範囲で回動
可能に、しかも、抜止め状にして設け、このエルボ受口
５９の向きを、主軸ａに対し平行から直交した状態まで
使用できる４５°合流塩ビ製小口径ます６０（これを第
２の従来例とする）が提案されている（特許第２６１４
９６４号公報または特許第２６５２３２９号公報参
照）。On the other hand, as shown in FIG. 5, a receiving port 56 for a branch pipe is provided to improve the small-diameter square 50 made of 45 ° confluent PVC so that it can be easily installed (laid) even on a very narrow ground. The length is shortened from the standard length, and 4
The 5 ° elbow 58 is provided so as to be rotatable in the range of 180 ° as shown by the arrow f and is in a retaining shape, and the direction of the elbow receiving port 59 can be used from the state parallel to the main axis a to the state perpendicular thereto. A 45 ° merging PVC small caliber 60 (this is referred to as a second conventional example) has been proposed (Japanese Patent No. 2614).
964 or Japanese Patent No. 2652329).

【０００６】かかる改良された４５°合流塩ビ製小口径
ます６０によると、従来の分流管用受口５６の受口長さ
を短縮しており、しかも、この分流管用受口５６にイン
クリ−ザ等の介在部品なしに直接４５°エルボ５８を設
けたので、上流側の主流管用受口５２とエルボ受口５９
との間隔Ｚ３を小にして、ひいては、狭小地に布設可能
とするものであり、特に、当該狭小地における布設作業
を容易にできるようにしている。According to the improved 45 ° merging PVC small diameter square 60, the length of the conventional diversion pipe receiving port 56 is shortened, and the diversion pipe receiving port 56 is provided with an enhancer or the like. Since the 45 ° elbow 58 is provided directly without any intervening parts, the main flow pipe port 52 and the elbow port 59 on the upstream side are provided.
The distance Z3 between them is made small, and as a result, the cable can be laid in a narrow land. In particular, the laying work in the narrow land can be easily performed.

【０００７】しかしながら、かかる極狭小地に布設可能
の４５°合流塩ビ製小口径ます６０では、エルボ受口５
９の向きを主軸ａに対し平行にすると、すなわち、平行
ますとして使用すると、当然この状態ではこのエルボ受
口５９と上流側の主流管用受口５２とは同一水平方向に
向けて開口している。However, in the small-diameter square 60 made of 45 ° merging PVC, which can be laid in such a very small area, the elbow socket 5
If the direction of 9 is parallel to the main axis a, that is, if it is used as parallel, in this state, the elbow port 59 and the main flow pipe port 52 on the upstream side open in the same horizontal direction in this state. .

【０００８】ところが、この種のエルボ受口５９は、往
々にして、宅内における階上の洗面所等の排水を流入す
ることに適用されるが、このエルボ受口５９は水平方向
に開口しているため、更に短管や９０°エルボ（不図
示）を必要とするので、これらの短管や９０°エルボの
接続作業が極狭小地にとってきわめて面倒になる。[0008] However, this type of elbow receiving port 59 is often applied to inflow of drainage from a lavatory or the like on a floor in a house, but this elbow receiving port 59 is opened horizontally. Therefore, since a short pipe and a 90 ° elbow (not shown) are further required, the connection work of these short pipes and a 90 ° elbow is extremely troublesome for a very small land.

【０００９】そのため、このエルボ受口５９付４５°エ
ルボ５８を止め、図６に示すように球形自在継手１Ａ付
４５°エルボ５Ａの塩ビ製小口径ます６０Ａ（これを説
明用想定例という）を用いることが考えられる。Therefore, the 45 ° elbow 58 with the elbow receiving port 59 is stopped, and as shown in FIG. 6, a 45 ° elbow 5A with a spherical universal joint 1A and a small-diameter PVC 60A (referred to as an example for explanation) are used. It can be used.

【００１０】この球形自在継手１Ａ付４５°エルボ５Ａ
を、短縮接続部５７に設けると、この球形自在継手１Ａ
が約３０°の範囲で首振り可能となって、上向きに１５
°の傾斜がとれ、階上の排水を都合よく導入できるもの
の、次のような新たな問題が判明した。This spherical universal joint 1A with 45 ° elbow 5A
Is provided in the shortened connection portion 57, this spherical universal joint 1A
Can be swung within a range of about 30 °, and
Although the inclination of ° could be taken and drainage on the floor could be introduced conveniently, the following new problems were found.

【０００１１す
なわち、図６において、エルボ５Ａにおける球形自在継
手１Ａは、ブロ−成形した扁平樽状のシェル２と、この
シェル２に密接摺動自在にゴム輪６を介して挿入し、か
つ、抜止めされた２分割状のコア３，４と、から構成
し、入口側のコア３に分流管（不図示）の差口を接着接
合し、奥側のコア４をストッパ−としたものである。 【００１１】そして、このシェル２の基部を４５°エル
ボ５Ａに一体成形しており、更に、この４５°エルボ５
Ａの基部は、前記の第２の従来例のエルボ受口５９付４
５°エルボ５８と同様、回動可能で、しかも、抜止め状
にした分流管用受口５６を介して、短縮接続部５７に設
けられている。That is, in FIG. 6, a spherical universal joint 1A in an elbow 5A is inserted into a blow-molded flat barrel-shaped shell 2 via a rubber ring 6 so as to be able to slide tightly on the shell 2, and is pulled out. The two cores 3 and 4 are stopped, and the spigot of a branch pipe (not shown) is adhesively bonded to the core 3 on the inlet side, and the core 4 on the back side is used as a stopper. . The base of the shell 2 is integrally formed with a 45 ° elbow 5A.
The base of A is the elbow socket 59 of the second conventional example.
Like the 5 ° elbow 58, it is rotatable, and is provided on the shortened connection portion 57 via a retaining pipe-shaped receiving port 56.

【００１２】[0012]

【発明が解決しようとする課題】しかしながら、この説
明用想定例の球形自在継手１Ａ付４５°エルボ５Ａで
は、第２の従来例のエルボ受口４９付４５°エルボ５８
に比べ、特に、受口と自在継手との形状の差からして、
その外径Ａおよび奥側のコア４の軸方向長さＢが大きく
占め、平行ますにした場合、上流側の主流管用受口５２
と干渉することから、球形自在継手１Ａを突出して配置
させる必要上、４５°エルボ５Ａを長寸にせざるを得
ず、ひいては、前記第１の従来例の４５°合流塩ビ製小
口径ます５０に４５°エルボ（不図示）を接続した構成
（例えば、上流側の主流管用受口５２の外端より４５°
エルボ外端を３７，９ｍｍだけ突出させる。この場合、
図５におけるＺ３の相当量は１６６．９ｍｍになってい
る）と略同一の据付スペ−スとなり、したがって、狭小
地用に改良したメリットを失い、換言すれば、図６で示
す４５°エルボ５Ａには球形自在継手１Ａを設けること
に困難性がある、という新しい問題が判明した。However, the 45 ° elbow 5A with the spherical universal joint 1A and the 45 ° elbow 58A with the elbow receiving port 49 of the second conventional example in the assumed example for explanation are used.
In particular, from the difference in shape between the socket and the universal joint,
When the outer diameter A and the axial length B of the core 4 on the back side occupy a large amount and are parallel, the main flow pipe receiving port 52 on the upstream side
Since the spherical universal joint 1A needs to be protruded and arranged, the 45 ° elbow 5A must be made longer, which in turn causes the 45 ° merging PVC 50 of the first conventional example to have a smaller diameter. A configuration in which a 45 ° elbow (not shown) is connected (for example, 45 ° from the outer end of the main flow pipe receptacle 52 on the upstream side)
The outer end of the elbow is projected by 37.9 mm. in this case,
The equivalent space of Z3 in FIG. 5 is 166.9 mm), which is almost the same as the installation space, and therefore loses the merit of the improvement for narrow land, in other words, the 45 ° elbow 5A shown in FIG. Has a difficulty in providing the spherical universal joint 1A.

【００１３】そこで本発明は、かかる新しい問題点の知
見に基づいて創作されたものである。Therefore, the present invention has been made based on the knowledge of such a new problem.

【００１４】[0014]

【課題を解決するための手段】かかる目的を達成するた
め、本発明は、１）ます本体の主軸上に、上、下主流管
用接続部を設け、該主軸に直交して地表側に点検筒用接
続部を設け、該ます本体の横側に、前記主軸に対し上流
側に４５°傾斜した副軸上に設け、かつ、その切口が主
軸に対し４５°傾斜した分流管用接続口を設け、該分流
管用接続口に、１８０°の範囲で正逆転可能とする４５
°エルボを接続した極狭小地に布設容易な塩ビ製小口径
ますにおいて、前記４５°エルボのエルボ受口の代りに
球形自在継手を、該球形自在継手の首振り角の略半分の
角度で上向きに一体的に形成することにより、該球形自
在継手と前記上主流管用接続部とを平行にしたとき、該
球形自在継手をます本体に可及的に接近させて配置した
ことを特徴とする極狭小地に布設容易な塩ビ製小口径ま
すにあり、また、２）請求項１の上、下主流管用接続部
間の分流管用接続口側が上方に位置する段差を設けた極
狭小地に布設容易な塩ビ製小口径ますを要旨とするもの
である。In order to achieve this object, the present invention provides: 1) a connecting portion for an upper and lower main flow pipes on a main shaft of a main body, and an inspection cylinder on a surface side orthogonal to the main shaft. A connecting portion is provided, on the lateral side of the main body, provided on a sub-shaft inclined 45 ° upstream with respect to the main shaft, and a cut-off port provided with a connecting port for a diversion pipe inclined at 45 ° relative to the main shaft, The connection port for the diverter pipe can be rotated forward and reverse within a range of 180 °.
° In a small-diameter PVC pipe that can be easily laid on a very narrow ground with an elbow connected, a spherical universal joint is turned upward at an angle of approximately half the swing angle of the spherical universal joint in place of the elbow socket of the 45 ° elbow. The spherical universal joint is arranged as close as possible to the main body when the spherical universal joint and the connection portion for the upper main flow pipe are made parallel to each other. In a small-diameter PVC slab that is easy to lay in a narrow ground, and 2) in a very narrow ground with a step where the branch pipe connecting port side between the upper and lower main flow pipe connecting parts is located above. The gist is a small PVC masque.

【００１５】したがって、本発明には、次の実施態様が
含まれる。 本発明において、上、下主流管用接続部および点検筒
用接続部をそれぞれ受口で構成して簡素化・安価とし、
第１の従来例の４５°合流塩ビ製小口径ます（規格品）
の金型を可及的に利用できるようにして生産費を低減す
るもの。Therefore, the present invention includes the following embodiments. In the present invention, the connection portion for the upper and lower main flow pipes and the connection portion for the check tube are each configured with a receiving port to simplify and reduce the cost,
The first conventional example of 45 ° merging PVC small diameter square (standard product)
The production dies can be used as much as possible to reduce production costs.

【００１６】本発明において、球形自在継手を従来の
１５°曲管型自在継手に構成して、単なる平行ますの使
用時にも、上主流管用受口との段差を可及的に生じさせ
ないもの。In the present invention, the spherical universal joint is configured as a conventional 15 ° curved pipe universal joint so that a step with the upper main flow pipe port is not generated as much as possible even when using a simple parallel square.

【００１７】[0017]

【発明の実施の形態】本発明を、添付図面に示す実施の
形態例により詳細に述べる。図１は本発明の実施の形態
例の一部切断側面図、図２は図１の一部省略平面図であ
る。なお、従来例ないし説明用想定例を示す図３〜図６
と同一または同等部分は同一符号を付し、その説明を簡
略化する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to embodiments shown in the accompanying drawings. FIG. 1 is a partially cutaway side view of an embodiment of the present invention, and FIG. 2 is a partially omitted plan view of FIG. 3 to 6 showing a conventional example or an assumed example for explanation.
The same or equivalent parts are denoted by the same reference numerals, and description thereof will be simplified.

【００１８】本実施の形態例の自在継手１付塩ビ製小口
径ます１００は、前記図３および図４で述べた寸法と同
じように、点検筒用受口５４の呼び径が１５０ｍｍφの
場合、直線状の主軸ａ上に設けた上、下流側の主管用受
口５２，５３の呼び径Ｌが１００ｍｍφとなっており、
部品点数を節減しながら、宅地、特に極狭小地に設置可
能とし、布設作業をきわめて容易にしようとするもので
ある。The small-diameter frame 100 made of PVC with the universal joint 1 according to the present embodiment has the same size as that described with reference to FIGS. The nominal diameter L of the main pipe sockets 52, 53 on the downstream side, which is provided on the linear main shaft a, is 100 mmφ,
It is intended to be able to be installed on a residential land, particularly on a very small land, while reducing the number of parts, thereby making the installation work extremely easy.

【００１９】図１および図２において、この自在継手１
は球形自在継手とも呼ばれ、塩ビブロ−成形した扁平樽
状（球体を上下平行に切断した形状）のシェル２と、こ
のシェル２に密接摺動自在に、かつ、ゴム輪６を介在し
て、挿入・抜止めされた２分割状のコア３，４とから構
成し、入口側のコア３に流入側の分流管７の差口を接着
接合し、奥側のコア４を、この分流管７のストッパ−と
したもので、これを通常、接着受口自在継手と呼んでい
る。In FIG. 1 and FIG.
Is also referred to as a spherical universal joint, and is a flat barrel-like (shape obtained by cutting a sphere in a vertically parallel shape) shell 2 molded with PVC, and is slidably in close contact with the shell 2 and with a rubber ring 6 interposed therebetween. , And the insertion / removal-prevented two-part cores 3 and 4, the inlet of the inflow-side branch pipe 7 is adhesively bonded to the inlet-side core 3, and the back-side core 4 is connected to this branch pipe. 7, which is usually called an adhesive port universal joint.

【００２０】そして、特に、このシェル２の基部は、ブ
ロ−成形時に、４５°エルボ５に１５°の上向きに一体
成形される。すなわち、自在継手１の首振り角（３０
°）の半分で上向きに一体的に成形されている。したが
って、これを更に、接着受口自在継手１５°曲管型４５
°エルボ５と呼ぶことができる。In particular, the base of the shell 2 is integrally formed with the 45 ° elbow 5 upward by 15 ° at the time of blow molding. That is, the swing angle of the universal joint 1 (30
°) It is integrally molded upward in half. Therefore, this is further converted to a 15 ° curved tube type 45
° Elbow 5 can be called.

【００２１】そして本来、この種の球形自在継手一般に
おいて、１５°上向きの首振りをさせて使用した場合、
シェル２の底部に汚物溜を形成して好ましくないが、こ
の接着受口自在継手１５°曲管型４５°エルボ５による
と、上向き曲管により、かかる汚物溜を解消することが
できる。Originally, in this type of spherical universal joint, when it is used by swinging upward by 15 °,
Although it is not preferable to form a waste container at the bottom of the shell 2, according to the adhesive receiving universal joint 15 ° curved tube type 45 ° elbow 5, the waste reservoir can be eliminated by the upward curved pipe.

【００２２】そして、この４５°エルボ５の基部は、前
記の第２の従来例のエルボ受口５９付４５°エルボ５８
や説明用想定例の自在継手１Ａ付４５°エルボ５Ａと同
様、回動自在で、しかも、抜止め状にした分流管用受口
５６を介して短縮接続部５７に設けられる。The base of the 45 ° elbow 5 is provided with a 45 ° elbow 58 with an elbow receiving port 59 of the second conventional example.
Similarly to the 45 ° elbow 5A with the universal joint 1A of the assumed example for explanation, it is rotatable and is provided at the shortened connection portion 57 via the receiving port 56 for the diversion pipe which is formed in a retaining shape.

【００２３】更に、上、下流側の主流管用受口５２，５
３に所定の勾配があるものの、段差を形成しないます本
体５１に、この短縮接続部５７を形成し、しかも、この
短縮接続部５７のみに、例えば３０ｍｍの段差Ｓ（図４
参照）を設けてインバ−ト８に臨ませる。Further, the main flow pipe receiving ports 52, 5 on the upstream and downstream sides.
3 has a predetermined gradient, but does not form a step. The shortened connecting portion 57 is formed in the main body 51, and only the shortened connecting portion 57 has a step S of, for example, 30 mm (FIG. 4).
(See FIG. 2) to face the inverter 8.

【００２４】その結果、上流側の主流管用受口５２と、
この自在継手１とを平行状態にして使用する場合（平行
ますで使用する場合）、これらが特に上下方向に齟齬す
ることになり、ひいては、自在継手１をます本体５１に
可及的に接近させて取付けることができ（例えば、図５
におけるＺ３相当量は、１３８．９５ｍｍと接近できる
ので、第１の従来例の１６６．９ｍｍより相当短縮でき
る。そのとき、自在継手１の外端は、自在継手でありな
がら、上主流管用受口５２の外端より４６．１１ｍｍ突
出したにすぎない）、したがって、据付スペ−スを縮小
化することができる。As a result, the upstream mainstream pipe receiving port 52,
When the universal joint 1 is used in a parallel state (when used in a parallel state), these contradict each other particularly in the vertical direction. As a result, the universal joint 1 is brought closer to the main body 51 as much as possible. (See, for example, FIG. 5).
Can be approached to 138.95 mm, which is considerably shorter than 166.9 mm of the first conventional example. At that time, the outer end of the universal joint 1 is only 46.11 mm protruding from the outer end of the upper main flow pipe port 52 while being a universal joint.) Therefore, the installation space can be reduced. .

【００２５】勿論、この段差がなくても、平行ますにし
た場合、自在継手１は上流側の主管用受口５２と干渉す
ることはない。Of course, even if there is no step, the universal joint 1 will not interfere with the main pipe receiving port 52 on the upstream side if it is made parallel.

【００２６】なお、自在継手１付４５°エルボ５と短縮
接続部５７との接続は、前掲の公報にもあるように、Ｏ
リングを介して樹脂変形を利用した圧力ばめ等からなる
分流管用受口５６により接続している。The connection between the 45 ° elbow 5 with the universal joint 1 and the shortened connecting portion 57 is made by an O.
The connection is made through a ring by a branch pipe receiving port 56 made of a pressure fit or the like utilizing resin deformation.

【００２７】すなわち、４５°エルボ５の反自在継手１
側に４つの樹脂変形可能のエルボ側舌片９を設け、短縮
接続部５７には全外周に亘り係止フランジ１０を設け、
エルボ側舌片９を変形させながら係止フランジ１０を乗
り越えて、押込み嵌合する。That is, the anti-universal joint 1 of the 45 ° elbow 5
The four resin-deformable elbow-side tongue pieces 9 are provided on the side, and the locking flange 10 is provided on the shortened connection portion 57 over the entire outer periphery.
The elbow-side tongue piece 9 is deformed and gets over the locking flange 10 to be pushed and fitted.

【００２８】また、４５°エルボ５のエルボ側舌片９の
ある開口端縁には、１８０°に亘り切欠１１を設け、こ
の切欠段部が短縮接続部５７の視認可能のストッパ−用
突起１２に当接するようにしている。なお、１３は下流
側の主流管用受口５３に接続した主流管を示す。A notch 11 is formed at an opening edge of the 45 ° elbow 5 where the tongue piece 9 on the elbow side is located at 180 °. So that it abuts. Reference numeral 13 denotes a main flow pipe connected to the main flow pipe receiving port 53 on the downstream side.

【００２９】したがって、この接着受口自在継手１５°
曲管型４５°エルボ５によると、短縮接続部５７で１８
０°の範囲で、地上側空間において（地下側ではその必
要がない）、円錐状にストッパ−用突起１２に当接する
迄正逆転させることができるのは勿論、前記のように主
軸ａに対し、自在継手１は１５°上向きの状態で平行に
したり、また、１５°上向きの状態で直交状にしたり、
また、その中間状態にしたりすることができる。[0029] Therefore, this adhesive port universal joint 15 °
According to the curved tube type 45 ° elbow 5, 18
In the range of 0 °, in the above-ground space (there is no need for the underground side), it is possible to rotate forward and reverse until it comes into contact with the stopper projection 12 in a conical shape, and of course, as described above, with respect to the main shaft a. , The universal joint 1 is parallel at 15 ° upward, or orthogonal at 15 ° upward,
In addition, it can be in an intermediate state.

【００３０】そして特に、これらの１５°上向きの状態
を、コア３，４を摺動させて首振りを行わせ、４５°エ
ルボ５の曲管状態を水平状（例えば、図５や図６のもの
と同様の水平状）に修正することができる。すなわち、
単なる平行ますや直交ますに使用することができる。つ
まり、用途の多様化を図ることができる。In particular, the 15 ° upward state is swung by sliding the cores 3 and 4, and the curved state of the 45 ° elbow 5 is changed horizontally (for example, in FIGS. 5 and 6). Horizontal (similar to the one). That is,
It can be used for simple parallel or orthogonal. That is, diversification of uses can be achieved.

【００３１】次に、本実施の形態例の自在継手１付塩ビ
製小口径ます１００の作用を述べる。Next, the operation of the PVC small diameter square 100 with the universal joint 1 of this embodiment will be described.

【００３２】例えば、湿地状態の狭小地に設けた掘削溝
内に、この小口径ます１００を水準器を用いて水平状に
設置する。そのとき、この自在継手１に接着接合する分
流管７は階上の排水を流入させるため、自在継手１の１
５°の上向きと、４５°エルボ５に形成した上向き１５
°の曲管による上向きの合成角３０°によって斜め配管
することができる。その結果、従来の水平の短管や上向
き９０°エルボの接着接合作業を省き、極狭小地での工
事が容易にできる。For example, a small caliber 100 is installed horizontally using a level in a digging groove provided in a narrow land in a wetland state. At this time, the branch pipe 7 bonded and joined to the universal joint 1 allows the drainage on the floor to flow in.
5 ° upward and 45 ° upward formed on the elbow 5
An oblique pipe can be formed with an upward composite angle of 30 ° by a curved pipe of °. As a result, it is possible to omit the conventional work of bonding and joining a horizontal short pipe and an upward 90 ° elbow, and it is possible to easily perform construction on a very narrow ground.

【００３３】なお、本実施の形態例の塩ビ製小口径ます
１００における自在継手１は接着受口自在継手であった
が、本発明はこれに限らず、ゴム輪受口自在継手（シェ
ルとコアを止めるゴム輪と、分流管７をシ−ルするゴム
輪とをもつもの）であってもよい。また、４５°エルボ
と自在継手１との上向き接続は必ずしも１５°とは限ら
ない。Although the universal joint 1 in the small-diameter PVC 100 made of PVC of the present embodiment is an adhesive joint universal joint, the present invention is not limited to this, and the rubber ring universal joint (shell and core) is not limited thereto. And a rubber ring that seals the branch pipe 7). The upward connection between the 45 ° elbow and the universal joint 1 is not always limited to 15 °.

【００３４】[0034]

【発明の効果】本発明によると、 １つの小口径ますでありながら、その分流管用接続口
に接続された球形自在継手を主軸に対し平行と直交した
向き（その中間も可）に形成できるので、階上からの接
続用小口径ますと階下専用の接続用小口径ますの２通り
に兼用できるのは勿論、４５°エルボのエルボ受口の代
りに球形自在継手を設け、特に、この球形自在継手の首
振り角の略半分の角度でもって４５°エルボを上向きに
設けたので、通常（規格上）のエルボ受口より外径およ
び軸長で長寸の球形自在継手でありながら、球形自在継
手を上流側の主流管用接続部に平行にしたときも、当該
球形自在継手をます本体に可及的に接近できるよう一体
的に形成でき、ひいては、コンパクト化となって据付ス
ペ−スを縮小化できる。According to the present invention, the spherical universal joint connected to the connection port for the branch pipe can be formed in a direction perpendicular to and parallel to the main axis (the middle thereof is also possible) even though the diameter is one small diameter. In addition to the small diameter for connecting from the upper floor and the small diameter for connecting only for the lower floor, of course, a spherical universal joint is provided instead of the 45 ° elbow elbow socket. The 45 ° elbow is provided upward at an angle of approximately half the swing angle of the joint, so it is a spherical joint with a longer outer diameter and shaft length than the normal (standard) elbow port, but it is spherically adjustable Even when the joint is parallel to the connection for the mainstream pipe on the upstream side, the spherical universal joint can be integrally formed so as to be as close as possible to the main body, and as a result, the installation space is reduced and the installation space is reduced. Can be

【００３５】球形自在継手の首振り角でもって上向き
に分流管が接続でき、階上の配管を簡素化できると共
に、球形自在継手のシェルに形成する汚物溜りをなくす
ことができる。The branch pipe can be connected upward by the swing angle of the spherical universal joint, so that the piping on the floor can be simplified, and the waste pool formed on the shell of the spherical universal joint can be eliminated.

【００３６】球形自在継手に分流管を接続するので、
分流管の接続方向が合成角を含めて任意の角度で接続さ
れ、極狭小地にとって特に都合がよい。Since the branch pipe is connected to the spherical universal joint,
The connection direction of the branch pipes is connected at an arbitrary angle including the combined angle, which is particularly convenient for an extremely narrow land.

【００３７】球形自在継手を、その首振り角の略半分
の角度で上向きに設けているが、その上向きの角度は、
球形自在継手の首振り角によって修正でき、図５に示す
ような単なる平行ますおよび直交ますに用いることがで
きる。The spherical universal joint is provided upward at an angle approximately half of the swing angle of the spherical universal joint.
It can be modified by the swing angle of the spherical universal joint, and can be used for simple parallel and orthogonal as shown in FIG.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の実施の形態例の一部切断側面図であ
る。FIG. 1 is a partially cut-away side view of an embodiment of the present invention.

【図２】図１の一部省略平面図である。FIG. 2 is a partially omitted plan view of FIG. 1;

【図３】第１の従来例の平面図である。FIG. 3 is a plan view of a first conventional example.

【図４】図３の側面図である。FIG. 4 is a side view of FIG. 3;

【図５】第２の従来例の平面図である。FIG. 5 is a plan view of a second conventional example.

【図６】説明用想定例の平面図である。FIG. 6 is a plan view of a hypothetical example for explanation.

【符号の説明】[Explanation of symbols]

１…自在継手、５…４５°エルボ、７…分流管、５１…
ます本体、５２…上流側の主流管用受口、５３…下流側
の主流管用受口、５４…点検筒用受口、５６…分流管用
受口、５７…短縮接続部DESCRIPTION OF SYMBOLS 1 ... Universal joint, 5 ... 45 degree elbow, 7 ... Dividing pipe, 51 ...
Main body, 52: upstream mainstream pipe receptacle, 53 ... downstream mainstream pipe receptacle, 54 ... check pipe receptacle, 56 ... branch pipe receptacle, 57 ... shortened connection part

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 ます本体の主軸上に、上、下主流管用接
続部を設け、該主軸に直交して地表側に点検筒用接続部
を設け、該ます本体の横側に、前記主軸に対し上流側に
４５°傾斜した副軸上に設け、かつ、その切口が主軸に
対し４５°傾斜した分流管用接続口を設け、該分流管用
接続口に、１８０°の範囲で正逆転可能とする４５°エ
ルボを接続した極狭小地に布設容易な塩ビ製小口径ます
において、 前記４５°エルボのエルボ受口の代りに球形自在継手
を、該球形自在継手の首振り角の略半分の角度で上向き
に一体的に形成することにより、該球形自在継手と前記
上主流管用接続部とを平行にしたとき、該球形自在継手
をます本体に可及的に接近させて配置したことを特徴と
する極狭小地に布設容易な塩ビ製小口径ます。1. A connecting part for an upper and lower main flow pipe is provided on a main shaft of a main body, and a connecting part for a check tube is provided on a surface side of the main body orthogonal to the main shaft. On the other hand, provided on the sub-shaft inclined at 45 ° to the upstream side, and provided with a connection port for a diversion pipe whose cut end is inclined at 45 ° with respect to the main axis, and the connection port for the diversion pipe can be rotated forward and reverse within a range of 180 ° In a small-diameter PVC made easy to lay on a very narrow ground with a 45 ° elbow connected, use a spherical universal joint instead of the elbow socket of the 45 ° elbow at an angle approximately half the swing angle of the spherical universal joint. By forming the spherical universal joint and the connection portion for the upper main flow pipe in parallel with each other by forming the spherical universal joint upward, the spherical universal joint is disposed as close to the main body as possible. Easy to lay in very narrow ground. 【請求項２】 請求項１の上、下主流管用接続部間の分
流管用接続口側が上方に位置する段差を設けた極狭小地
に布設容易な塩ビ製小口径ます。2. A small-diameter PVC pipe which can be easily laid on a very narrow ground where a step is provided between the upper and lower main flow pipe connecting portions, and the branch pipe connecting port side is located above.