US 12,285,647 B2
Rotation exercising ball structure swinging smoothly
Yu-Lun Tsai, Taichung (TW)
Filed by Yu-Lun Tsai, Taichung (TW)
Filed on Jun. 6, 2023, as Appl. No. 18/329,683.
Prior Publication US 2024/0408437 A1, Dec. 12, 2024
Int. Cl. A63B 21/22 (2006.01); A63B 21/00 (2006.01); A63B 43/00 (2006.01); A63B 43/02 (2006.01)
CPC A63B 21/222 (2015.10) [A63B 21/4035 (2015.10); A63B 43/004 (2013.01); A63B 43/02 (2013.01); A63B 2209/08 (2013.01); A63B 2220/58 (2013.01); A63B 2225/50 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A rotation exercising ball structure comprising:
two shells, two pivot seats, two holding members, a weight unit, and two handle protecting members;
wherein:
the two shells are combined together to construct a hollow ball;
each of the two shells has an interior provided with a space;
the space has a bottom provided with a fixing hole;
the fixing hole is located at a center of the bottom of the space and penetrates each of the two shells;
each of the two pivot seats is formed on the bottom of the space and directed toward an opening of one of the two shells;
each of the two pivot seats is provided with a pivot pillar;
the pivot pillar has a center provided with a through hole;
the through hole penetrates each of the two pivot seats and extends to the fixing hole;
the two holding members are mounted on the two shells respectively;
each of the two holding members covers the fixing hole of one of the two shells;
each of the two holding members has an inner side and an outer side;
the weight unit includes a mandrel, a rotation member, two bearings, a weight, and at least one auxiliary weight;
the mandrel has two ends each of which extends through the through hole of one of the two pivot seats;
each of the two ends of the mandrel is secured in the through hole of one of the two pivot seats;
the rotation member has a first end provided with a mounting hole;
the two bearings are mounted in the mounting hole of the rotation member;
the rotation member is radially mounted on a central position of the mandrel through the mounting hole;
the weight connects a second end of the rotation member and is located opposite to the mandrel;
the rotation member and the weight are rotated in the hollow ball radially and centrifugally with the mandrel served as an axis;
the at least one auxiliary weight is removably mounted on the weight; and
the two handle protecting members are mounted on the two shells of the hollow ball respectively and align with the two holding members respectively.