EP0297907A1 - Tuyau de drainage en matière plastique et sa fabrication - Google Patents

Tuyau de drainage en matière plastique et sa fabrication Download PDF

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Publication number
EP0297907A1
EP0297907A1 EP88306029A EP88306029A EP0297907A1 EP 0297907 A1 EP0297907 A1 EP 0297907A1 EP 88306029 A EP88306029 A EP 88306029A EP 88306029 A EP88306029 A EP 88306029A EP 0297907 A1 EP0297907 A1 EP 0297907A1
Authority
EP
European Patent Office
Prior art keywords
pipe
water inlet
parts
drainage
corrugation
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.)
Withdrawn
Application number
EP88306029A
Other languages
German (de)
English (en)
Inventor
Klaus Hunnius
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PALOHEIMO Oy
Original Assignee
PALOHEIMO Oy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PALOHEIMO Oy filed Critical PALOHEIMO Oy
Publication of EP0297907A1 publication Critical patent/EP0297907A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B11/00—Drainage of soil, e.g. for agricultural purposes
    • E02B11/005—Drainage conduits

Definitions

  • the present invention relates to a plastics drainage pipe comprising laterally corrugated parts fixed one on top of the other, between which parts water inlet channels are formed.
  • the invention further relates to a method for manu­facture of such plastics drainage pipes.
  • plastics drainage pipes In underground drainage usually plastics drainage pipes are used, which are generally laterally corrugated so-called corrugated pipes. This corrugated form imparts rigidity to the pipes.
  • plastics drainage pipes In plastics drainage pipes there are holes so that water can enter the pipe.
  • the water inlet holes of the pipe are normally located around the pipe at the bottom of the corrugations. In the pipe there may be 4 - 10 rows of holes.
  • Drainage pipes usually lie in a trench on a bed of sand.
  • the sand acts as a filter material. If there are large holes in the drainage pipe then it is necessary to prevent sand from passing through these holes into the pipe and prevent the holes becoming blocked by the action of the sand.
  • a plastics drainage pipe of the type mentioned at the be­ginning of this description is known from the specification of EP Application 0 115 477.
  • Said drainage pipe comprises a complete, laterally corrugated inner pipe having water in­let holes in its upper part, and fitted on top of said inner pipe a laterally corrugated outer pipe.
  • This outer pipe is made from laterally corrugated pipe, the diameter of which corresponds to the diameter of the inner pipe, by cutting away about one-third of its periphery and then for­cing said outer pipe on top of the inner pipe.
  • a drawback of this solution disclosed in the specification of EP Application 0 115 477 is that for the manufacture of the drainage pipe disclosed therein two separate pipes, i.e. an inner pipe and an outer pipe, are required and taking into account that raw material costs constitute an appreciable part of the price of drainage pipe this drain­age pipe is not sensible from the economic point of view.
  • the water inlet holes are in the upper part of the inner pipe, so that the water has to rise through the chan­nel between the inner and outer pipes and along the peri­phery of the inner pipe up to its upper part. Consequently in the course of time impurities settle on the outer sur­face of the inner pipe, especially in the vicinity of the water inlet holes in its upper part, and said impurities impair the function of the drainage pipe and can even lead to blockage of the holes.
  • the purpose of the present invention is to provide a plastics drainage pipe in which the aforesaid defects and drawbacks have been eliminated and in which the water in­let holes are relatively numerous and large and in which blockage of said holes is effectively prevented.
  • a further purpose of the invention is to provide a method for manu­facture of such a plastics drainage pipe.
  • the drainage pipe of the invention is manufactured starting from a single laterally corrugated pipe, so that in respect of raw material consumption the drainage pipe of the inven­tion is equivalent to ordinary drainage pipe.
  • the pipe material is arranged so as to overlap in at least one zone along the length of the pipe, so that the overlapping pipe parts form between them water inlet channels.
  • the inlet holes of the water inlet channels are orientated downwards when the pipe is in its installed position.
  • the water then has to flow for some distance in the water inlet channel before it can run into the pipe it­self and as a consequence of this the water inlet channels are effectively protected from blockage and the filter material (sand) surrounding the pipe does not get into the pipe.
  • the material of the pipe wall is arranged overlapping so that the bottom of the corrugation of the inside part of the pipe and the ridge of the corrugation of the outside part of the pipe form between them the water inlet channel.
  • the drainage pipe of the invention differs mainly from prior-known drainage pipes in that the water does not enter the pipe directly via water inlet apertures (holes), but has to flow along the water inlet channels in order to en­ter the pipe.
  • the shape of the corrugations of the laterally corrugated pipe determines the size of the water inlet channels.
  • the size of the channels can be adjusted, for instance by changing the height of the ridges.
  • the height of the ridges can, for instance, change only at at those points where the parts of the pipe are overlapping.
  • the channels may even be very large, since as a consequence of the aforesaid orien­tation of the channels sand cannot rise into the channels.
  • the water inlet channels can be in one side of the pipe or also in both sides.
  • the drainage pipe of the invention is advantageously manu­factured by cutting laterally corrugated pipe open in the longitudinal direction or by already at the stage of manu­facture of the pipe forming a laterally corrugated pipe which is open along one line in the longitudinal direction. Thereafter and in the same manufacturing stage the free parts of the pipe are forced one on top of the other and the end coming from one side is at the same time forced to move in the longitudinal direction so that the bottom of the corrugation of one part of the pipe meets the top of the corrugation of the other part of the pipe and in this position the parts of the pipe are permanently joined to­gether in a manner considered appropriate.
  • the pipe can be manufactured by cutting a laterally corrugated pipe longitudinally into two parts essentially equal in size, after which these pipe halves are joined to­gether so that at the position of the joint on both sides the upper half covers the half below it and the halves are joined together so that the bottoms of the corrugations of the upper half touch the ridges of the corrugations of the lower half.
  • the joining together of the pipe halves can be carried out by glueing or welding or by some other method known per se.
  • the ridges of the corrugation of one half and the bottoms of the corrugation of the other half can be shaped so as to obtain the best possible sur­face contact. It is also possible by various profiles to arrange slip stops or to achieve a locking action by for­ing various lips on the pipe.
  • Figures 1 - 3 show a laterally corrugated plastics drainage pipe 1 in which the bottom 4 of the corrugation of the in­side part 10 of the pipe and the ridge 5 of the corrugation of the outside part 9 of the pipe form a water inlet chan­nel 8.
  • the ridge 6 of the corrugation of the inside part 10 of the pipe is joined to the bottom 7 of the corrugation of the outside part 9 of the pipe.
  • the length of the water in­let channel 8 depends on how much the lower, inside part 10 of the pipe and the upper, outside part 9 of the pipe are arranged to overlap.
  • Figures 4 - 6 show a laterally corrugated plastics drainage pipe which is formed of two pipe halves 2 and 3.
  • the end parts 11 and 13 of the upper pipe half 2 are fitted on top of the end parts 12 and 14 of the lower pipe half 3, so that the bottoms 4 of the corrugation of the inside pipe parts 13 and 14 and the ridges 5 of the corrugation of the outside pipe parts 11 and 13 form water inlet channels 8 on both the left and right sides.
  • the ridges 6 of the corruga­tion of the inside pipe parts 12 and 14 are joined to the bottoms 7 of the corrugation of the outside pipe parts 11 and 13.
  • the length of the water inlet channel 8 depends on how much the upper pipe half 2 and the lower pipe half 3 are joined overlapping.
  • water inlet holes 15 In the bottoms 4 of the corrugation of the inside parts 12 and 14 of the pipe there are water inlet holes 15, which are located in two rows along both sides of the length of the pipe.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
EP88306029A 1987-07-03 1988-07-01 Tuyau de drainage en matière plastique et sa fabrication Withdrawn EP0297907A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI872958A FI77076C (fi) 1987-07-03 1987-07-03 Draeneringsroer av plast och dess tillverkning.
FI872958 1987-07-03

Publications (1)

Publication Number Publication Date
EP0297907A1 true EP0297907A1 (fr) 1989-01-04

Family

ID=8524767

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88306029A Withdrawn EP0297907A1 (fr) 1987-07-03 1988-07-01 Tuyau de drainage en matière plastique et sa fabrication

Country Status (2)

Country Link
EP (1) EP0297907A1 (fr)
FI (1) FI77076C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000011269A1 (fr) * 1998-08-21 2000-03-02 Boehm Arthur Tuyau pour drainer de l'eau ou des eaux usees
WO2012148879A1 (fr) * 2011-04-28 2012-11-01 Corning Cable Systems Llc Ensemble de fibres présentant une caractéristique de plateau

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110714449A (zh) * 2019-10-20 2020-01-21 苏州筑园景观规划设计股份有限公司 一种市政绿化用盲管及其制造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1180201B (de) * 1953-07-21 1964-10-22 Nobel Bozel Fa Berieselungsschlauch
DE2642623A1 (de) * 1976-09-22 1978-03-23 Interplant Plantana Holding Ag Schlauch fuer berieselungs- oder begasungszwecke, insbesondere fuer troepfchen- oder unterfeldbewaesserung
US4163619A (en) * 1977-09-30 1979-08-07 Rainer Isolierrohrfabrik Max Drossbach Corrugated drainage tubing with helically arranged drainage openings
EP0033570A1 (fr) * 1980-01-25 1981-08-12 Wavin B.V. Tuyau ondulé en matière plastique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1180201B (de) * 1953-07-21 1964-10-22 Nobel Bozel Fa Berieselungsschlauch
DE2642623A1 (de) * 1976-09-22 1978-03-23 Interplant Plantana Holding Ag Schlauch fuer berieselungs- oder begasungszwecke, insbesondere fuer troepfchen- oder unterfeldbewaesserung
US4163619A (en) * 1977-09-30 1979-08-07 Rainer Isolierrohrfabrik Max Drossbach Corrugated drainage tubing with helically arranged drainage openings
EP0033570A1 (fr) * 1980-01-25 1981-08-12 Wavin B.V. Tuyau ondulé en matière plastique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000011269A1 (fr) * 1998-08-21 2000-03-02 Boehm Arthur Tuyau pour drainer de l'eau ou des eaux usees
WO2012148879A1 (fr) * 2011-04-28 2012-11-01 Corning Cable Systems Llc Ensemble de fibres présentant une caractéristique de plateau

Also Published As

Publication number Publication date
FI77076B (fi) 1988-09-30
FI77076C (fi) 1989-01-10
FI872958A0 (fi) 1987-07-03

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