Process and system for the manufacture of windows/doors

1. A process for the manufacture of windows/doors ( 1 ), wherein said process comprises the following steps:

providing at least one inner panel ( 2 ) for windows/doors;

providing a plurality of plastic profiled elements ( 3 ) for windows/doors, each of said profiled elements ( 3 ) comprising at least two areas to seal ( 5 ), coupleable to the areas to seal ( 5 ) of the other profiled elements ( 3 ), and at least one longitudinal slot ( 6 ), in which a respective perimeter side ( 4 ) of said inner panel ( 2 ) is insertable;

wherein said profiled elements ( 3 ) comprise at least a first longitudinal portion ( 7 ), a second longitudinal portion ( 8 ) and a third longitudinal portion ( 9 ) mutually arranged substantially in a C pattern, with said first longitudinal portion ( 7 ) and said second longitudinal portion ( 8 ) which extend from said third longitudinal portion ( 9 ) and define said longitudinal slot ( 6 ) between them, wherein said longitudinal profiled elements ( 7 , 8 , 9 ) are made separately from each other and assembled later;

performing a step of mechanical machining by chip removal on at least one of said areas to seal ( 5 ), which comprises the step of forming a groove ( 11 ) at at least one of said areas to seal ( 5 );

heating said areas to seal ( 5 );

coupling said heated areas to seal ( 5 ) to one another by pressing said profiled elements ( 3 ) one against the other to maintain said areas to seal ( 5 ) in mutual contact and define the frame for windows/doors, said coupling taking place with said inner panel ( 2 ) inserted in said longitudinal slots ( 6 ) to define a window/door ( 1 ) which is composed by said frame and by said inner panel ( 2 ) contained in said frame said step of coupling the areas to seal ( 5 ) comprising a sub-step of melting the areas to seal ( 5 ) between them to define a sealing bead and a sub-step of making a containing compartment defined by said groove ( 11 ), in which said sealing bead is made inside said containing compartment;

wherein said step of forming a groove ( 11 ) is implemented by an operation by chip removal on a peripheral edge of at least one of said profiled elements ( 3 );

wherein said groove ( 11 ) is formed only on said second longitudinal portion ( 8 ) and on said third longitudinal portion ( 9 ), while said first longitudinal portion ( 7 ) is completely leveled at the same working depth corresponding to the working depth of said groove ( 11 ), said profiled elements ( 3 ) being sealed together by melting and mutual union of said second longitudinal portions ( 8 ) and of said third longitudinal portions ( 9 ), while said first longitudinal portions ( 7 ) are not heated and, during said step of coupling, approach substantially snugly without melting.

2. The process according to claim 1 , wherein said process comprises the steps of:

placing said inner panel ( 2 ) in an insertion configuration in which said inner panel ( 2 ) is substantially coplanar to the lying plane ( 10 ) of said longitudinal slots ( 6 ); and

moving said profiled elements ( 3 ) from a position of mutual spacing away to a position of mutual approach, said moving being adapted to insert said inner panel ( 2 ) in said longitudinal slots ( 6 ).

3. The process according to claim 1 , wherein said coupling takes place substantially by pressing all said profiled elements ( 3 ) at the same time one against the other.

4. The process according to claim 1 , wherein said step of heating takes place with said inner panel ( 2 ) arranged to the outside of said longitudinal slots ( 6 ), between said heating and said coupling elapsing a coupling time of less than 2 seconds during which said inner panel ( 2 ) is inserted in said longitudinal slots ( 6 ).

5. The process according to claim 1 , wherein said heating occurs with said inner panel ( 2 ) arranged partially inserted inside at least one of said longitudinal slots ( 6 ), between said heating and said coupling elapsing a coupling time of less than 2 seconds during which the profiled element ( 3 ) corresponding to said at least one of said longitudinal slots ( 6 ) moves from a position of partial insertion to a position of full insertion.

6. The process according to claim 1 , wherein said heating takes place with said inner panel ( 2 ) arranged completely inserted inside at least one of said longitudinal slots ( 6 ), between said heating and said coupling elapsing a coupling time of less than 2 seconds during which the profiled element ( 3 ) corresponding to said at least one of said longitudinal slots ( 6 ) remains substantially stationary with respect to said inner panel ( 2 ).

7. The process according to claim 1 , wherein said process comprises the step of stretching apart said first longitudinal portion ( 7 ) and said second longitudinal portion ( 8 ) to facilitate the insertion of said inner panel ( 2 ) in said longitudinal slots ( 6 ).

8. The process according to claim 1 , wherein said profiled elements ( 3 ) comprise at least one seal element ( 15 ) associated with at least one of said first longitudinal portion ( 7 ) and said second longitudinal portion ( 8 ).

9. The process according to claim 1 , wherein said inner panel ( 2 ) comprises at least a seal element ( 15 ) associated with said perimeter sides ( 4 ).

10. The process according to claim 1 , wherein said process comprises the interposing of at least one seal element ( 15 ) between at least one of said profiled elements ( 3 ) and at least one of said perimeter sides ( 4 ) of the inner panel ( 2 ), said seal element ( 15 ) comprising at least a first longitudinal band ( 20 ) interposable between said first longitudinal portion ( 7 ) and said inner panel ( 2 ), in which said first longitudinal band ( 20 ) has a cross section divided into:

at least a first base sector ( 21 ) adapted to remain attached to said inner panel ( 2 ); and

at least a first sealing sector ( 22 ) protruding with respect to said first base sector ( 21 ) and having a first sharp edge ( 22 a ) and a first actuating edge ( 22 b ), said first sealing sector ( 22 ) being joined to said first base sector ( 21 ) in a movable manner between a rest position, in which said first sharp edge ( 22 a ) is moved away from said inner panel ( 2 ), and an operating position, in which said first sharp edge ( 22 a ) rests on said inner panel ( 2 ), the insertion of said inner panel ( 2 ) in said longitudinal slots ( 6 ) being adapted to bring said first actuating edge ( 22 b ) in contact with said first longitudinal portion ( 7 ) and to move said first sealing sector ( 22 ) from said rest position to said operating position.

11. The process according to claim 10 , wherein said seal element ( 15 ) comprises at least a second longitudinal band ( 23 ) interposable between said second longitudinal portion ( 8 ) and said inner panel ( 2 ) and at least a third longitudinal band ( 24 ) interposable between said third longitudinal portion ( 9 ) and said inner panel ( 2 ), said first longitudinal band ( 20 ), said second longitudinal band ( 23 ) and said third longitudinal band ( 24 ) being arranged substantially in a C pattern.

12. The process according to claim 11 , wherein said second longitudinal band ( 23 ) has a cross section divided into:

at least a second base sector ( 26 ) adapted to remain attached to said inner panel ( 2 ); and

at least a second sealing sector ( 27 ) protruding with respect to said second base sector ( 26 ) and having a second sharp edge ( 27 a ) and a second actuating edge ( 27 b ), said second sealing sector ( 27 ) being joined to said second base sector ( 26 ) in a movable manner between a rest position, in which said second sharp edge ( 27 a ) is moved away from said inner panel ( 2 ), and an operating position, in which said second sharp edge ( 27 a ) rests on said inner panel ( 2 ), the insertion of said inner panel ( 2 ) in said longitudinal slots ( 6 ) being adapted to bring said second actuating edge ( 27 b ) in contact with said second longitudinal portion ( 8 ) and to move said second sealing sector ( 27 ) from said rest position to said operating position.