发明名称 Method for manufacturing an inflatable ball and a ball made with the method
摘要 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.
申请公布号 US2006068951(A1) 申请公布日期 2006.03.30
申请号 US20040955764 申请日期 2004.09.30
申请人 CHANG YEN-LI 发明人 CHANG YEN-LI
分类号 A63B41/00 主分类号 A63B41/00
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