The present invention relates to a ball structure and a method for making the same. The ball structure includes an inner bladder and a plurality of covers. The covers surround the inner bladder. Each of the covers includes a base fabric and a resin layer. The resin layer has a recess portion at the periphery of the cover, so that the recess portions of adjacent covers defines a groove. The base fabric includes a first portion and a second portion. The first portion corresponds to the recess portion, and the second portion is away from the recess portion. The thickness of the first portion is substantially equal to the thickness of the second portion.

The present invention relates to a ball structure and a method for making the same. The ball structure includes an inner bladder and a plurality of covers. The covers surround the inner bladder. Each of the covers includes a base fabric and a resin layer. The resin layer has a recess portion at the periphery of the cover, so that the recess portions of adjacent covers defines a groove. The base fabric includes a first portion and a second portion. The first portion corresponds to the recess portion, and the second portion is away from the recess portion. The thickness of the first portion is substantially equal to the thickness of the second portion.

A training ball includes a resilient shell having an outer surface and an inner surface defining an interior chamber therein. Weighted filler material is disposed within the chamber. A valve stem extends radially inwardly from the shell inner surface and into the interior chamber. An opening along the valve stem extending from the interior chamber to the outer surface of the shell, with a valve disposed in the opening. A transition between the valve stem and an inner surface of the outer shell is curved, tapered, or otherwise graduated to reduce stress at the transition such that a widest portion of the transition is at least twice as wide as a narrowest portion of the valve stem. The transition can be curved with a fillet radius of between about 5-15% of the outer diameter of the ball, and/or between about 4-10 mm.

A channelless basketball includes a bladder body without projection ribs and a bladder body which includes a plurality of cover panels attached on the bladder body in edge to edge manner to completely cover the bladder body. At least some of the cover panels are provided with gripping bands each of which is provided along the peripheral adjoining edge of the respective cover panel for providing good gripping and holding ability for the channelless basketball.

A channelless basketball includes a bladder body without projection ribs and a bladder body which includes a plurality of cover panels attached on the bladder body in edge to edge manner to completely cover the bladder body. At least some of the cover panels are provided with gripping bands each of which is provided along the peripheral adjoining edge of the respective cover panel for providing good gripping and holding ability for the channelless basketball.

A gravity training ball includes a ball core unit having a predetermined weight specification, a buffer unit covering the ball core unit and made of a material having a shock absorbing effect, and an outer cover unit covering said buffer unit. The outer cover unit includes an outer cover layer covering the buffer unit.

A gravity training ball includes a ball core unit having a predetermined weight specification, a buffer unit covering the ball core unit and made of a material having a shock absorbing effect, and an outer cover unit covering said buffer unit. The outer cover unit includes an outer cover layer covering the buffer unit.

A yoga paddleboard may include a yoga board body having a hole extending therethrough. The hole may be formed at the approximate lateral and longitudinal center of the paddleboard. The hole may be sized and configured to support a yoga ball pressed in the hole to establish an interfacing friction connection therebetween. The yoga ball may be used to perform yoga exercises while floating on the paddleboard. Alternative embodiments may include yoga ball supports configured to support yoga balls of different sizes and/or multiple yoga balls for use with the paddleboard.

The present disclosure is relates to a TPU ball structure and a manufacturing method thereof. The TPU ball structure includes a ball bladder layer, a yarn layer and a surface layer. The ball bladder layer is made of TPU material. The yarn layer is made of TPU material, and the yarn layer is disposed to cover the ball bladder layer. The surface layer is made of TPU material, and the surface layer is disposed to cover the yarn layer. The above layers of the TPU ball structure are made of TPU material to satisfy a requirement for environmental protection, and are recyclable. There is no need to use adhesive to adhere the above layers of the TPU ball structure. Therefore, the peeling strength between the layers of the TPU ball structure can be increased so that the whole peeling strength of the TPU ball structure can be increased.

A method for manufacturing sports ball having a high-performance cover formed from a plurality of panels with foam provided internally.