FR2386760A1 - Tubular hoop for supporting plastics greenhouse tunnels - has oval cross-section with curved upper and lower parts joined by large area flats - Google Patents

Tubular hoop for supporting plastics greenhouse tunnels - has oval cross-section with curved upper and lower parts joined by large area flats

Info

Publication number
FR2386760A1
FR2386760A1 FR7711185A FR7711185A FR2386760A1 FR 2386760 A1 FR2386760 A1 FR 2386760A1 FR 7711185 A FR7711185 A FR 7711185A FR 7711185 A FR7711185 A FR 7711185A FR 2386760 A1 FR2386760 A1 FR 2386760A1
Authority
FR
France
Prior art keywords
section
large area
lower parts
oval cross
curved upper
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Withdrawn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
FR7711185A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7711185A priority Critical patent/FR2386760A1/en
Publication of FR2386760A1 publication Critical patent/FR2386760A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A01G9/1407—Greenhouses of flexible synthetic material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Greenhouses (AREA)

Abstract

The tubular hoops are arranged to have two straight sides (3, 4) parallel with each other and two curved sides (1) and (2) at the opposite ends. The hoops are inserted at regular intervals under a plastics sheet to form a tunnel which can be supported at the ends by anchorages and along the sides by vertical supports.
FR7711185A 1977-04-07 1977-04-07 Tubular hoop for supporting plastics greenhouse tunnels - has oval cross-section with curved upper and lower parts joined by large area flats Withdrawn FR2386760A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7711185A FR2386760A1 (en) 1977-04-07 1977-04-07 Tubular hoop for supporting plastics greenhouse tunnels - has oval cross-section with curved upper and lower parts joined by large area flats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7711185A FR2386760A1 (en) 1977-04-07 1977-04-07 Tubular hoop for supporting plastics greenhouse tunnels - has oval cross-section with curved upper and lower parts joined by large area flats

Publications (1)

Publication Number Publication Date
FR2386760A1 true FR2386760A1 (en) 1978-11-03

Family

ID=9189375

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7711185A Withdrawn FR2386760A1 (en) 1977-04-07 1977-04-07 Tubular hoop for supporting plastics greenhouse tunnels - has oval cross-section with curved upper and lower parts joined by large area flats

Country Status (1)

Country Link
FR (1) FR2386760A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000025571A1 (en) * 1998-10-30 2000-05-11 Rovero Systems B.V. Building having joists and a gutter, and a gutter and joist for use therein
WO2017178797A1 (en) * 2016-04-14 2017-10-19 Haygrove Limited Polytunnel structure
PL131113U1 (en) * 2022-11-29 2024-06-03 Mabo Spółka Z Ograniczoną Odpowiedzialnością Profile

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488901A (en) * 1964-11-02 1970-01-13 Diversification Dev Inc Modular free-span curvilinear structures

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488901A (en) * 1964-11-02 1970-01-13 Diversification Dev Inc Modular free-span curvilinear structures

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000025571A1 (en) * 1998-10-30 2000-05-11 Rovero Systems B.V. Building having joists and a gutter, and a gutter and joist for use therein
WO2017178797A1 (en) * 2016-04-14 2017-10-19 Haygrove Limited Polytunnel structure
CN109152338A (en) * 2016-04-14 2019-01-04 黑革萝有限公司 Vinyl house structure
US20190136571A1 (en) * 2016-04-14 2019-05-09 Haygrove Limited Polytunnel structure
GB2549469B (en) * 2016-04-14 2019-12-25 Haygrove Ltd Polytunnel structure
PL131113U1 (en) * 2022-11-29 2024-06-03 Mabo Spółka Z Ograniczoną Odpowiedzialnością Profile

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Legal Events

Date Code Title Description
ST Notification of lapse