FR2416644A1 - Ventilation system for greenhouses covered with plastic sheets - with overlapping edges of sheets drawn apart by cables pulled by electric motor - Google Patents
Ventilation system for greenhouses covered with plastic sheets - with overlapping edges of sheets drawn apart by cables pulled by electric motorInfo
- Publication number
- FR2416644A1 FR2416644A1 FR7803932A FR7803932A FR2416644A1 FR 2416644 A1 FR2416644 A1 FR 2416644A1 FR 7803932 A FR7803932 A FR 7803932A FR 7803932 A FR7803932 A FR 7803932A FR 2416644 A1 FR2416644 A1 FR 2416644A1
- Authority
- FR
- France
- Prior art keywords
- sheets
- electric motor
- ventilation system
- edges
- overlapping edges
- 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
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
-
- 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
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/241—Arrangement of opening or closing systems for windows and ventilation panels
- A01G9/242—Arrangement of opening or closing systems for windows and ventilation panels for greenhouses with flexible coverings
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Greenhouses (AREA)
Abstract
A greenhouse or cloche has a frame covered by plastic sheets which normally overlap at their edges. The edges of the sheets are fastened by clips to endless cables which pass around pulleys. One pulley is mounted on the output shaft of a reduction gear box driven by an electric motor. Operation of the motor draws the edges of the sheets apart to allow controlled ventilation of the greenhouse. The motor may be at one edd of the greenhouse and a counterweight at the other end may be fitted to restore the sheets to closed positions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7803932A FR2416644A1 (en) | 1978-02-13 | 1978-02-13 | Ventilation system for greenhouses covered with plastic sheets - with overlapping edges of sheets drawn apart by cables pulled by electric motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7803932A FR2416644A1 (en) | 1978-02-13 | 1978-02-13 | Ventilation system for greenhouses covered with plastic sheets - with overlapping edges of sheets drawn apart by cables pulled by electric motor |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2416644A1 true FR2416644A1 (en) | 1979-09-07 |
FR2416644B3 FR2416644B3 (en) | 1980-10-10 |
Family
ID=9204504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7803932A Granted FR2416644A1 (en) | 1978-02-13 | 1978-02-13 | Ventilation system for greenhouses covered with plastic sheets - with overlapping edges of sheets drawn apart by cables pulled by electric motor |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2416644A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4348833A (en) * | 1981-02-18 | 1982-09-14 | Seiwa Kagaku Kabushiki Kaisha | Opening and closing a flexible screen in a greenhouse or the like |
ES2044755A2 (en) * | 1991-07-15 | 1994-01-01 | Inst Recerca I Tecnologia Agroalimentaries | Greenhouse with roll-up roof. |
FR2834745A1 (en) * | 2002-01-16 | 2003-07-18 | Sarl Barre | Element for protection against bad weather to be mounted on carrying structure is formed by two panels superposed on marginal zones which can slide relative to each other and be separated to form release opening |
-
1978
- 1978-02-13 FR FR7803932A patent/FR2416644A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4348833A (en) * | 1981-02-18 | 1982-09-14 | Seiwa Kagaku Kabushiki Kaisha | Opening and closing a flexible screen in a greenhouse or the like |
ES2044755A2 (en) * | 1991-07-15 | 1994-01-01 | Inst Recerca I Tecnologia Agroalimentaries | Greenhouse with roll-up roof. |
FR2834745A1 (en) * | 2002-01-16 | 2003-07-18 | Sarl Barre | Element for protection against bad weather to be mounted on carrying structure is formed by two panels superposed on marginal zones which can slide relative to each other and be separated to form release opening |
Also Published As
Publication number | Publication date |
---|---|
FR2416644B3 (en) | 1980-10-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
AR | Application made for restoration | ||
BR | Restoration of rights |