INNER BLADDER STRUCTURE FOR BALL
First Claim
1. An inner bladder structure for ball, particularly suitable for a seamless ball, comprising a bladder being in the form of a spherical bag and forming a main body structure of a seamless ball, a yarn layer being provided on an outer surface of the bladder, an emulsion layer being provided on an outer surface of the yarn layer to serve as a binding material, and a round and smooth ball cover layer bonded to an outer surface of the emulsion layer;
- the yarn layer being a single-layered web structure integrally knitted using a plurality of yarns to have a three-dimensional (3D) spherical shape with a plurality of voids formed between adjacent knitting yarns; and
the emulsion layer filling up the voids on the yarn layer to form a complete spherical body.
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Accused Products
Abstract
A ball inner bladder structure, particularly suitable for a seamless ball, includes a bladder in the form of a spherical bag, a yarn layer enclosing the bladder, an emulsion layer applied over the yarn layer, and a ball cover layer bonded to the emulsion layer. The yarn layer is an integrally knitted web structure having a 3D spherical shape. Knitted yarns subjected to pressure can displace relative to one another to finely adjust a surface configuration of the web structure for the same to completely bear against the bladder. The emulsion layer fills up voids on the yarn layer to provide a smooth spherical surface. The specifically knitted yarn layer can effectively control an expansion degree of the bladder when the same is inflated. And, expansion or compression pressure applied to the bladder is uniformly distributed over interlocking points of knitted yarns, preventing the bladder from deformation and breaking.
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Citations
11 Claims
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1. An inner bladder structure for ball, particularly suitable for a seamless ball, comprising a bladder being in the form of a spherical bag and forming a main body structure of a seamless ball, a yarn layer being provided on an outer surface of the bladder, an emulsion layer being provided on an outer surface of the yarn layer to serve as a binding material, and a round and smooth ball cover layer bonded to an outer surface of the emulsion layer;
- the yarn layer being a single-layered web structure integrally knitted using a plurality of yarns to have a three-dimensional (3D) spherical shape with a plurality of voids formed between adjacent knitting yarns; and
the emulsion layer filling up the voids on the yarn layer to form a complete spherical body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- the yarn layer being a single-layered web structure integrally knitted using a plurality of yarns to have a three-dimensional (3D) spherical shape with a plurality of voids formed between adjacent knitting yarns; and
Specification