The invention concerns a disco ball with an outer skin (3) which on the outside is fitted with mirror pieces (6) and has an expandable inner structure (2) comprising an inflatable inner skin which in expanded state is spherical and holds the outer skin (3) in a ball shape, characterized in that the outer skin (3) has a plurality of approximately lenticular segments (4) which are arranged next to each other, and adjacent lenticular segments (4) are releasably connected together to form the outer skin (3), and the lenticular segments (4) are each fitted with mirror pieces (6) on the outside.

The invention concerns a disco ball with an outer skin (3) which on the outside is fitted with mirror pieces (6) and has an expandable inner structure (2) comprising an inflatable inner skin which in expanded state is spherical and holds the outer skin (3) in a ball shape, characterized in that the outer skin (3) has a plurality of approximately lenticular segments (4) which are arranged next to each other, and adjacent lenticular segments (4) are releasably connected together to form the outer skin (3), and the lenticular segments (4) are each fitted with mirror pieces (6) on the outside.

A non-glued laminated ball includes an inner bladder, a yarn layer, a rubber layer and an outer cover layer. The yarn layer sticks to an outer surface of the inner bladder. The rubber layer is provided between the yarn layer and the outer cover layer. The outer cover layer includes a plurality of outer covers. Stalk lines are provided among the outer covers. Bottom layers of the outer covers are required to be loose. The outer covers bond to a rubber raw material of the rubber layer through a mold-closing pressurization bonding. Then, through vulcanizing, the rubber raw material permeates into the yarn layer and the loose bottom layers of the outer covers for integrating the inner bladder, the yarn layer, the rubber layer and the outer cover layer together. No glue, industrial gasoline or methylbenzene is provided between the outer cover layer and the rubber layer.

A non-glued laminated ball includes an inner bladder, a yarn layer, a rubber layer and an outer cover layer. The yarn layer sticks to an outer surface of the inner bladder. The rubber layer is provided between the yarn layer and the outer cover layer. The outer cover layer includes a plurality of outer covers. Stalk lines are provided among the outer covers. Bottom layers of the outer covers are required to be loose. The outer covers bond to a rubber raw material of the rubber layer through a mold-closing pressurization bonding. Then, through vulcanizing, the rubber raw material permeates into the yarn layer and the loose bottom layers of the outer covers for integrating the inner bladder, the yarn layer, the rubber layer and the outer cover layer together. No glue, industrial gasoline or methylbenzene is provided between the outer cover layer and the rubber layer.

A sport ball may include a casing and a bladder located within the casing. The casing may include a plurality of panel elements joined to each other with welds, and portions of the panel elements that include the welds may project toward an interior of the ball. A method of manufacturing a sport ball may include providing a plurality of casing elements that include a thermoplastic polymer material. Edges of the casing elements are welded to each other to join the casing elements. The casing elements may then be turned inside-out through an aperture formed by at least one of the casing elements, and the aperture may be sealed.

A sport ball may include a casing and a bladder located within the casing. The casing may include a plurality of panel elements joined to each other with welds, and portions of the panel elements that include the welds may project toward an interior of the ball. A method of manufacturing a sport ball may include providing a plurality of casing elements that include a thermoplastic polymer material. Edges of the casing elements are welded to each other to join the casing elements. The casing elements may then be turned inside-out through an aperture formed by at least one of the casing elements, and the aperture may be sealed.

A ball useful for basketball practice and a method for manufacturing the same are provided. The ball includes an inflatable bladder covered with one or more flexible elongate elements wound around the surface of the bladder. The ball also includes an outer covering with at least two outer panels separated by at least one strip of elastomeric material. The outer panels and the strip(s) are placed directly onto the wound flexible elongate element(s). The manufacture-method particularly involves covering the inflatable bladder with the flexible elongate element(s) wound on the surface of the bladder, and placing the outer covering, including the outer panels separated by the strip(s) of elastomeric material, directly onto the wound flexible elongate element(s).

A ball useful for basketball practice and a method for manufacturing the same are provided. The ball includes an inflatable bladder covered with one or more flexible elongate elements wound around the surface of the bladder. The ball also includes an outer covering with at least two outer panels separated by at least one strip of elastomeric material. The outer panels and the strip(s) are placed directly onto the wound flexible elongate element(s). The manufacture-method particularly involves covering the inflatable bladder with the flexible elongate element(s) wound on the surface of the bladder, and placing the outer covering, including the outer panels separated by the strip(s) of elastomeric material, directly onto the wound flexible elongate element(s).

A sport ball may include a casing that incorporates a plurality of joined panel elements, which include a first panel element with a first edge and a second panel element with a second edge. The first edge and the second edge are welded to each other. In some configurations, the first panel element has a first edge with a projection that extends outward from the first edge, the second panel element has a second edge that is located adjacent to the first edge, and the projection of the first edge is located between the second edge and the bladder. In another configuration, the first edge and the second edge are formed to have rounded configurations. The sport ball may also include an intermediate layer and a bladder within the casing.

A sport ball may include a casing that incorporates a plurality of joined panel elements, which include a first panel element with a first edge and a second panel element with a second edge. The first edge and the second edge are welded to each other. In some configurations, the first panel element has a first edge with a projection that extends outward from the first edge, the second panel element has a second edge that is located adjacent to the first edge, and the projection of the first edge is located between the second edge and the bladder. In another configuration, the first edge and the second edge are formed to have rounded configurations. The sport ball may also include an intermediate layer and a bladder within the casing.