Bra cups without sewing seams

The present invention relates to a bra cup which includes an outer layer and an inner layer which is connected to the outer layer by heat-pressing.

A conventional bra generally includes two cups connected by a connection plate and two side plates respectively extend from the two cups so as to be hooked with each other on the back of the wearers. Two shoulder straps are connected between the corresponding pair of cup and side plate. The cups each include a foam lining, a shape wire located at a lower edge of each cup, an inner layer and an outer layer. The foam lining is sandwiched between the inner layer and the outer layer which is sewed to the outer layer. Although the sewing provides better connection to the inner layer and the outer layer, seams are visible if the wearers wear a tight top and the threads could be loosened or broken after repeatedly washing.

The present invention intends to provide a cup structure of a bra and the inner layer and the outer layer are connected with each other by way of heat-pressing which creates a non-seam outer surface for the cups.

The present invention relates to cup structure for bras and the cup includes an outer layer, a middle layer which is sandwiched between the outer layer and an inner layer. The middle layer includes a lining with two curved edges and a connection plate which includes two concave curved recesses such that the lining is sewn to the connection plate by sewing the two curved convex edges along the two curved recesses. The outer layer is connected to the inner layer by heat-pressing.

The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.

FIG. 1 is an exploded view to show the bra of the present invention;

FIG. 2 is a cross sectional view to show the lining of the middle layer of the bra of the present invention;

FIG. 3 is a perspective view, seen from outside of the bra of the present invention, and

FIG. 4 is a perspective view, seen from inside of the bra of the present invention.

Referring to FIGS. 1 to 4 , the bra of the present invention comprises two cups and each cup includes an outer layer 10 , a middle layer 30 and an inner layer 20 , wherein the middle layer 30 is sandwiched between the outer layer 10 and the inner layer 20 . The middle layer 30 includes a lining 31 with two curved convex edges 313 and a connection plate 33 which includes two concave curved recesses 331 so that the lining 31 is sewed to the connection plate 33 by sewing the two curved convex edges 313 along the two concave recesses 331 . The lining 31 includes two surface cotton sheets 311 , 311 and a fiber texture layer 312 is located between the two surface cotton sheets 311 , 311 . Two shape wires 321 are received in two tubes 32 which are secured to the two curve curved edges 313 of the lining 31 so as to provide support to the cups.

The outer layer 10 is connected to the inner layer 20 by heat-pressing or gluing which creates non-seam outer surface. Ultra-sonic wave is used to trim the periphery of the cups.

The bras can be made much easier and quicker than the conventional ones. There will be no worry for the threads visible or loosened. The bras of the present invention are suitable for mass production and the fiber texture layer 312 of the lining 31 prevents the bras from being deformed.

While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.