Patent ID: 7497051

Claim:
Plastic greenhouse of the type that is composed of a framework that has a roof, side walls and optionally a front wall and a rear wall, which comprises: curved struts ( 1 ) formed by curved sections ( 3 ) which make up the roof and, the side walls in one possible embodiment, vertical uprights ( 2 ) formed by vertical sections ( 4 ) which make up the front wall, the rear wall and, the side walls in another possible embodiment, horizontal cross members ( 7 ) formed by horizontal sections ( 6 ) linear connectors ( 5 ) which fit together the curved sections ( 3 ) and/or the vertical sections ( 4 ), cross connectors ( 8 ) which fit together the curved sections ( 3 ) or the vertical sections ( 4 ) and the horizontal sections ( 6 ), characterised in that the horizontal sections ( 6 ) comprise a front side ( 18 ) and a rear side ( 19 ) attached by bracing ribs ( 20 ) provided with a series of lugs ( 17 ) adjacent to the side edges, also the curved sections ( 3 ) and vertical sections ( 4 ) comprise a front side ( 9 ) and a rear side ( 10 ) Linked by bracing ribs ( 11 ) on which there are lugs ( 12 ), arranged in a line adjoining the top and bottom edges respectively, on which is press-fitted the linear connector ( 5 ) that establishes the coupling between consecutive curved sections ( 3 ) and/or vertical sections ( 4 ), additionally the curved sections ( 3 ) and the vertical sections ( 4 ) are provided at their end edges with a half lug ( 14 ) that, along with the other half lug ( 14 ′) of the consecutive curved section forms a whole lug, on which a fastening cap ( 15 ) is fitted to assure fastening and collinearity between consecutive curved sections ( 3 ) and/or vertical sections ( 4 ) and also in that the front side ( 9 ) and the rear side ( 10 ) of the curved sections ( 3 ) and the vertical sections ( 4 ) are provided with intermediate lugs ( 16 ) on which are fitted the cross connectors ( 8 ), which also engage on the lugs ( 17 ) of the horizontal section ( 6 ), establishing the fastening between the curved sections ( 3 ) or the vertical sections ( 4 ) and the horizontal sections ( 6 ).