Method for manufacturing an inflatable ball and a ball made with the method
First Claim
1. A method for manufacturing an inflatable ball, the method comprising acts of:
- obtaining an inflatable bladder having an inner space, a winding layer surrounding the inflatable bladder and an injecting nozzle communicating with the inner space;
coating thermoplastic glue on the winding layer of the inflatable bladder;
obtaining multiple thickened panels, wherein each thickened panel is made of a leather layer and has an inner face, a thickened middle area and multiple thinned edges around the thickened middle area;
coating thermoplastic glue on the inner face of each thickened panel;
arranging the multiple thickened panels inside a mold;
placing the inflatable bladder into the mold;
injecting compressed warm air into the inflatable bladder to make the winding layer abut the multiple thickened panels until the thermoplastic glue combines the inflatable bladder and multiple thickened panels together to achieve the ball; and
removing the ball from the mold.
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Abstract
A method for manufacturing an inflatable ball has the following acts of: obtaining an inflatable bladder with a winding layer; coating thermoplastic glue on the winding layer; obtaining multiple thickened panels; coating thermoplastic glue on the thickened panels; arranging the thickened panels and the inflatable bladder inside a mold; and injecting thermal air into the inflatable bladder to make the winding layer combine with the multiple thickened panels. Wherein, each thickened panel is made of a leather layer and an optional filling layer and has a thickened middle area and multiple thinned edges around the thickened middle area. By eliminating the rubber layer in the prior arts, vulcanization is avoided. Moreover, heating the inflatable ball from inside of the mold avoids thermal deformation of outer pebbled patterns of the panels.
23 Citations
13 Claims
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1. A method for manufacturing an inflatable ball, the method comprising acts of:
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obtaining an inflatable bladder having an inner space, a winding layer surrounding the inflatable bladder and an injecting nozzle communicating with the inner space;
coating thermoplastic glue on the winding layer of the inflatable bladder;
obtaining multiple thickened panels, wherein each thickened panel is made of a leather layer and has an inner face, a thickened middle area and multiple thinned edges around the thickened middle area;
coating thermoplastic glue on the inner face of each thickened panel;
arranging the multiple thickened panels inside a mold;
placing the inflatable bladder into the mold;
injecting compressed warm air into the inflatable bladder to make the winding layer abut the multiple thickened panels until the thermoplastic glue combines the inflatable bladder and multiple thickened panels together to achieve the ball; and
removing the ball from the mold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification