A - Human Necessities – 01 – K
Patent
A - Human Necessities
01
K
43/13
A01K 73/05 (2006.01)
Patent
CA 2035882
The purpose of the device is to ensure that the trawl opens satisfactorily whatever the trawling speed, while being reliable and easy to use. It consists of a structure (11) comprising at least two flexible superimposed wings (12, 13) connected by a plurality of partitions (14) transversal in relation to said wings. Securing means (15a, 15b) are also fitted to rig the structure on the trawl near the aperture so that the wings are incident in relation to the flow and so that the partitions are set in the direction of flow. In addition to an excellent lifting action at customary trawling speeds, the device of the invention has the advantages of being very easy to rig and of little bulk.
PRECIS DE LA DIVULGATION: Le dispositif a pour but d'assurer une ouverture satisfaisante du chalut, quelle que soit la vitesse de chalutage, tout en étant fiable et d'utilisation aisée. Il consiste en une structure (11) comprenant au moins deux ailes souples superposées (12, 13) réunies par une pluralité de cloisons (14), transversales par rapport auxdites ailes. Des moyens de fixation (15a, 15b) sont en outre prévus pour gréer la structure sur le chalut, près de l'ouverture, de manière que les ailes soient incidentes par rapport à l'écoulement, et que les cloisons soient orientées dans la direction d'écoulement. Outre d'excellentes performances de sustentation aux vitesses habituelles de chalutage, le dispositif de l'invention a comme avantages d'être très facile à gréer et d'avoir un encombrement négligeable.
Guigo Herve
Kerrest Bernard
Theret Francois
Institut Francais de Recherche Pour L'exploitation de La Mer - I
Robic
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