Device and method for continuous production of a three dimensional fabric for making panels
AssigneeNat Style Limited
InventorAchille Pio Tamanini
Life of this patent
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Abstract
Method and device for continuous production of three dimensional fabrics (50) made up of two or more external layers (51,52) of fabric connected to each other using thread strands (53) starting from separate pieces of fabric, overlapping and joining them and proceeding to sewing using strands (53), said sewing using strands (53) being performed using two pieces of fabric lying and sliding on the opposite faces of a spacer comb-like structure (6), that determines the length of the thread strands (53).
Claims17
Method for continuous production of three dimensional fabrics (50) having two external layers (51,52) of fabric having lateral edges where said two external layers of fabric (51,52) are arranged parallel and are connected to each other by means of connection strands (53) arranged perpendicular to said external layers of fabric (51,52), said method comprising:
- (a) providing:
- two bobbins (1,2),each having a layer of fabric (51,52) thereon that will form said two external layers (51,52)of the three dimensional fabric (50), said method further comprising:
- (b) connecting the two layers of fabric (51,52) by overlapping and joining their lateral edges (51a,52a);
- and
- (c) sewing said two layers of fabric (51,52) with a first sewing unit (10) using connection strands (53) to connect said layers of fabric (51,52), said sewing with connection strands (53) being performed with the two layers of fabric (51,52) lying and sliding respectively on two opposite faces of a spacer comb-like structure (6), which comprise a plurality of bars (7) arranged in the longitudinal direction and spaced from each other with a pitch corresponding to the space desired between successive longitudinal lines of connection strands (53), the height of said bars (7) corresponding to the desired length for the connection strands (53).
Device (100) for continuous production of three dimensional fabrics (50) made up of two external layers (51,52) of fabric parallel and connected to each other using connection thread strands (53) arranged perpendicular to said external layers, comprising connecting the layers of fabric (51,52) by overlapping and joining lateral edges (51a,52a) of said layers of fabric and one or more rows of second sewing units (20) for sewing said layers of fabric using connection strands (53) to connect said layers of fabric (51,52) while maintaining the lateral edges (51a,52a) of said layers of fabric (51,52) overlapped and joined, said one or more rows of second sewing units (20) for sewing using connection strands (53) are operated with the two layers of fabric lying and sliding respectively on two opposite faces of a spacer comb-like structure (6), which comprise a plurality of bars (7) arranged in a longitudinal direction and spaced with respect to each other using a pitch corresponding to the desired space between successive longitudinal lines of connection strands (53), the height of the bars (7) corresponding to a length desired for connection strands (53).
Dependencies are inferred from the claim text.