초록 ▼

A shading and heating insulating device, especially for greenhouses, has two films of flexible plastic material interconnected to form a type of pouch enclosing a hollow space, which is preferably divided into a plurality of tunnels. A supply pipe is operatively quick-coupled to one end of a distrib

A shading and heating insulating device, especially for greenhouses, has two films of flexible plastic material interconnected to form a type of pouch enclosing a hollow space, which is preferably divided into a plurality of tunnels. A supply pipe is operatively quick-coupled to one end of a distribution conduit, the jacket of which is operatively connected to one edge of the hollow space for feeding a pourable heat insulating material into the hollow space. A return pipe may be operatively quick-coupled to a collection conduit, the jacket of which is operatively connected to an opposite edge of the hollow space for withdrawing the pourable insulating material out of the hollow space and returning it to a storage container. When the hollow space is empty, the pouch may be rolled up, for example by rotating one of the conduits, or the pouch may be folded after release of at least one quick-coupling member.

대표청구항 ▼

A shading and heat insulating device, comprising pouch means made of flexible material forming two walls enclosing a hollow space, said pouch means having an inlet leading into said hollow space along first edges formed by said two walls, an outlet providing an exit out of said hollow space between

A shading and heat insulating device, comprising pouch means made of flexible material forming two walls enclosing a hollow space, said pouch means having an inlet leading into said hollow space along first edges formed by said two walls, an outlet providing an exit out of said hollow space between second edges formed by said two walls, said pouch means further having third and fourth edges, a reservoir for holding pourable particles of heat insulating material, a distribution conduit having a longitudinal first channel connected to said inlet, a collection conduit having a longitudinal second channel connected to said outlet, pipe means for connecting said reservoir to said distribution conduit and to said collection conduit, pump means including motor means for driving said pump means arranged for transporting pourable particles of heat insulating material into said hollow space and for removing pourable particles of heat insulating material from said hollow space to empty said pouch means, quick-coupling means for coupling and uncoupling said pipe means to and from at least one of said distribution and collection conduits to permit rolling up or folding of said pouch means, and support means for normally supporting said distribution conduit and said collection conduit at a constant distance from each other and for defining a plane on which at least one of said conduits is displaceable for rolling-up or unrolling said flexible pouch means when said flexible pouch means are empty by rotating and moving said one conduit relative to the other conduit.