| 摘要 |
The subject of the present invention is an anti-snow device for horticultural greenhouses. The device is intended for greenhouses of all types, the roof of which is made from a plastic film. It consists of a combination of shoes (1) which are equipped with cutting blades (2) and slide along guides installed under the roof, by means of cables (8) drawn by pulleys (7) actuated by a longitudinal shaft (6) situated in the top part of the main arch, the sections (profiles) being arranged on either side of the ridge of the greenhouse, between the trusses (5) of the roof frame, in such a manner that rotation of the said shaft makes it possible to cut the layer of snow transversely at the same time as the plastic film simultaneously, in the centre of each module of the greenhouse, over the entire length of the roof. It is intended for greenhouses of all types, the roof of which is formed from a plastic film. <IMAGE>
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