JPH0535268Y2 - - Google Patents
Info
- Publication number
- JPH0535268Y2 JPH0535268Y2 JP4970088U JP4970088U JPH0535268Y2 JP H0535268 Y2 JPH0535268 Y2 JP H0535268Y2 JP 4970088 U JP4970088 U JP 4970088U JP 4970088 U JP4970088 U JP 4970088U JP H0535268 Y2 JPH0535268 Y2 JP H0535268Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipes
- wall
- pipe
- egg
- shaped
- 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.)
- Expired - Lifetime
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000011343 solid material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Sewage (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、合成樹脂製の、いわゆる卵形排水管
に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a so-called egg-shaped drain pipe made of synthetic resin.
一般に、下水管きよには、その断面形状とし
て、円形管、正方形きよ、馬蹄形きよ、卵形き
よ、放物線形きよ、楕円形きよ、およびＵ字形き
よなどが知られている。
In general, the cross-sectional shapes of sewer pipes are known as circular pipes, square pipes, horseshoe-shaped pipes, oval pipes, parabolic pipes, oval pipes, and U-shaped pipes.
一方、これらの下水管きよの断面形状を利用し
た排水管の一つに卵形排水管が知られており、こ
の卵形排水管は、低水時に流速が速く汚物の堆積
が少ないという利点を備えている（実開昭51−
83917号公報、実公昭52−43181号公報、実公昭58
−33350号公報など参照）。 On the other hand, an egg-shaped drain pipe is known as one of the drain pipes that utilizes the cross-sectional shape of these sewer pipes. (1977-)
Publication No. 83917, Publication No. 43181 of 1982, Publication No. 43181 of 1983
-Refer to Publication No. 33350, etc.).
すなわち、合成樹脂製の卵形排水管は、低勾
配、少流量のとき、円形断面と比べ水深が深く、
流速が大となるので、固形物を押し流す作用が強
く働き、汚物の搬送機能が高い。 In other words, an egg-shaped synthetic resin drainage pipe has a deeper water depth than a circular cross-section when the slope is low and the flow rate is small.
Since the flow velocity is high, the effect of washing away solid substances is strong, and the function of transporting waste is high.
そのため、かかる卵形の排水管について節水時
の汚物の堆積を回避するため、各種の提案が成さ
れている。例えば、実開昭54−89614号公報では、
合成樹脂製の卵形排水管において、内周長が235
mm以上641mm未満で、断面形状が左右対称をなす
非円形状であつて、その対称軸に交わる管内周壁
が半径19mm以上26mm以下の曲率で描かれた排水管
を提案している。この提案によれば、特に、外径
22mm、長さ80mm、比重1.05のポリビニルアルコー
ル製円柱状疑似汚物と、トイレツトペーパーとの
固形物の搬送機能に優れていると、いわれてい
る。 Therefore, various proposals have been made to avoid the accumulation of filth when saving water with respect to such egg-shaped drain pipes. For example, in Utility Model Application Publication No. 54-89614,
An egg-shaped drain pipe made of synthetic resin with an inner circumference of 235 mm.
We propose a drainage pipe whose cross-sectional shape is symmetrical and non-circular, with a diameter of 19 mm or more and less than 641 mm, and whose inner circumferential wall that intersects the axis of symmetry has a radius of curvature of 19 mm or more and 26 mm or less. According to this proposal, in particular, the outer diameter
It is said to have an excellent ability to transport solid materials such as 22 mm long, 80 mm long, and 1.05 specific gravity cylindrical pseudo-filth made of polyvinyl alcohol and toilet paper.
しかしながら、従来のいずれの卵形排水管にお
いても、その低水時の水深のみに着目して搬送機
能の向上を図つているが、本考案者らの試行錯誤
によれば、水深による搬送機能には限度があつ
て、その結果、本考案者らは、固形物の搬送機能
を更に高めるには、固形物と管内壁との付着性に
ついても配慮する必要性に想到したのである。 However, in all conventional egg-shaped drain pipes, the conveyance function has been improved by focusing only on the water depth at low water levels, but according to the trial and error of the present inventors, the conveyance function depends on the water depth. As a result, the inventors of the present invention came up with the necessity of considering the adhesion between the solids and the inner wall of the pipe in order to further enhance the solids transport function.
そこで本考案は、従来の卵形排水管の搬送機能
を更に向上させることを目的として、案出された
もので、その要旨とするところは、天井の曲率半
径より小の半径で描かれる管内壁の底部に、断面
波形を形成した合成樹脂製の卵形排水管にある。
Therefore, the present invention was devised with the aim of further improving the conveyance function of conventional egg-shaped drain pipes. At the bottom, there is an egg-shaped drainage pipe made of synthetic resin with a corrugated cross section.
本考案の構成を添付図面に示す第１の実施例に
より詳細に説明する。
The structure of the present invention will be explained in detail with reference to a first embodiment shown in the accompanying drawings.
添付図面は、本考案の第１の実施例の断面図を
示し、１は、硬質塩化ビニル樹脂製の断面形状が
卵形の排水管であつて、家庭などの敷地内に、直
管として埋設されるものである。この排水管１の
大きさは、図中、Ｈ＝240〜360mm、Ｗ＝165〜247
mm、r1＝76〜115mm、r2＝38〜57mm、r3＝227〜340
mmのものとなつている。 The attached drawing shows a cross-sectional view of the first embodiment of the present invention, and 1 is a drain pipe made of hard vinyl chloride resin and having an oval cross-sectional shape, which is buried as a straight pipe in the premises of a home or the like. It is something that will be done. In the figure, the size of this drain pipe 1 is H = 240 to 360 mm, W = 165 to 247
mm, r1 =76~115mm, r2 =38~57mm, r3 =227~340
It is now a mm item.
第１の実施例では、小曲率半径r2によつて描か
れる管内壁の底部ａに、若干の高さｈを有する波
形ｂを形成している。 In the first embodiment, a waveform b having a certain height h is formed on the bottom a of the inner wall of the tube, which is defined by a small radius of curvature r2 .
また、第２の実施例として、前記小曲率半径r2
によつて描かれる管内壁の底部ａに、図示しない
が、断面波形とする凹溝のみを形成してもよい。 Furthermore, as a second embodiment, the small radius of curvature r 2
Although not shown, only a concave groove having a corrugated cross section may be formed on the bottom a of the inner wall of the tube drawn by.
その結果、固形物２は排水管１の管内壁の底部
ａに沈下して付着しようとするが、その付着面積
が波形ｂの頂部または凹溝の頂部となり、その面
積が減少するとともに、波形ｂの溝内または凹溝
に排水が流れ、固形物２を浮上させようとする。
したがつて、排水管１の内壁に対する固形物２の
剥離性が増し、固形物の搬送機能を高めることが
できる。 As a result, the solids 2 tend to sink and adhere to the bottom a of the inner wall of the drain pipe 1, but the adhesion area becomes the top of the waveform b or the top of the groove, and the area decreases, Drainage water flows into the grooves or grooves and tries to float the solids 2.
Therefore, the peelability of the solid material 2 from the inner wall of the drain pipe 1 is increased, and the solid material conveyance function can be enhanced.
なお、これらの実施例の管内壁の底部ａを波形
または凹溝に構成した排水管１は、押出成形機の
マントルヘツドに波形または凹凸を形成すれば、
容易に成形できる。 The drain pipe 1 of these embodiments in which the bottom a of the inner wall of the pipe is formed into a corrugated or recessed groove can be produced by forming a corrugated or uneven groove on the mantle head of an extrusion molding machine.
Can be easily molded.
また、波形は、管軸方向全部に形成してもよい
が、軸方向にとびとびに形成し、波形中間には従
来と同様、平滑面としてもよい。更に、これらの
実施例は直管で説明したが、本考案はこれに限ら
ず、エルボなどにも応用できることはいう迄もな
い。この場合、エルボのスリーブ継手を構成すれ
ば、この継手部分のみには、波形を作らず従来通
り容易に接合できる。また、波形ｂの形成部分
は、必ずしも曲率半径r2のみに限らず、若干上方
にも形成されていてもよい。 Further, the corrugations may be formed in the entire tube axis direction, but they may also be formed at intervals in the axial direction, and a smooth surface may be provided in the middle of the corrugations as in the conventional case. Furthermore, although these embodiments have been explained using straight pipes, it goes without saying that the present invention is not limited to this and can be applied to elbows and the like. In this case, if an elbow sleeve joint is configured, only this joint portion can be easily joined as before without creating a corrugation. Furthermore, the portion where the waveform b is formed is not necessarily limited to the radius of curvature r2 , but may also be formed slightly above.
本考案では、排水管の内壁の底部を断面波形
（凹凸状）に構成したので、卵形による固形物搬
送機能向上に加え、排出中の固形物と管内壁の底
部との剥離性が良くなり、それだけ、固形物の搬
送機能がアツプすることになる。
In this invention, the bottom of the inner wall of the drain pipe has a corrugated cross-section (uneven shape), which not only improves the solids transport function due to the oval shape, but also improves the separation of the solids being discharged from the bottom of the inner wall of the pipe. , the solid material conveyance function will be improved accordingly.
特に、卵形の小曲率半径で描かれた管内壁に、
主として、波形を形成したので、その波形の高さ
を大きくすることなく、または溝を深くすること
なく、固形物と管内壁の底部との付着面積が減少
でき、ひいては管体の埋設強度に支障を与えるこ
とがない。 In particular, the inner wall of the tube, which is shaped like an oval with a small radius of curvature,
Mainly, since a corrugated shape is formed, the adhesion area between solids and the bottom of the pipe inner wall can be reduced without increasing the height of the corrugation or deepening the groove, which in turn affects the buried strength of the pipe body. Never give up.
添付図面は、本考案の実施例の断面図を示す。
１……排水管、ａ……管内壁の底部、ｂ……波
形、ｈ……高さ。
The accompanying drawings show cross-sectional views of embodiments of the invention. 1... Drain pipe, a... Bottom of pipe inner wall, b... Waveform, h... Height.
Claims (1)
の底部に、断面波形を形成した合成樹脂製の卵形
排水管。 An egg-shaped drainage pipe made of synthetic resin with a corrugated cross-section formed at the bottom of the inner pipe wall with a radius smaller than the radius of curvature of the ceiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4970088U JPH0535268Y2 (en) | 1988-04-13 | 1988-04-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4970088U JPH0535268Y2 (en) | 1988-04-13 | 1988-04-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01152187U JPH01152187U (en) | 1989-10-20 |
| JPH0535268Y2 true JPH0535268Y2 (en) | 1993-09-07 |
Family
ID=31275784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4970088U Expired - Lifetime JPH0535268Y2 (en) | 1988-04-13 | 1988-04-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0535268Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4536236B2 (en) * | 2000-09-19 | 2010-09-01 | クボタシーアイ株式会社 | Drain pipe |
-
1988
- 1988-04-13 JP JP4970088U patent/JPH0535268Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01152187U (en) | 1989-10-20 |
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