| 摘要 |
A method for making a football includes the steps of cutting rubber material to a predetermined dimension; vulcanizing the rubber material; attaching a sponge layer to a fabric layer; attaching the sponge layer and the fabric layer to the rubber material; cutting the combined rubber material, sponge layer and the fabric layer into elliptical pieces; sewing the elliptical pieces to form an ellipsoid body and defining an inlet opening, wherein edges of the elliptical pieces are sewed together and thus a ellipsoid is formed; defining holes in adjacent pieces of the ellipsoid body; turning the ellipsoid body inside-out and inserting a bladder into the ellipsoid body through the inlet opening; and lacing the holes together with a plastic lace.
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