US 12,251,612 B2
Stabilized training apparatus
Doug Hoang, Costa Mesa, CA (US)
Assigned to Hykso Inc., Costa Mesa, CA (US)
Filed by Hykso Inc., Costa Mesa, CA (US)
Filed on Feb. 16, 2023, as Appl. No. 18/110,850.
Claims priority of provisional application 63/342,069, filed on May 14, 2022.
Prior Publication US 2023/0364482 A1, Nov. 16, 2023
Int. Cl. A63B 69/22 (2006.01)
CPC A63B 69/224 (2022.08) [A63B 2214/00 (2020.08); A63B 2225/093 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A shaft assembly comprising:
a gimbal bearing;
a flexible member;
a shaft extending upward from the flexible member and comprising a first end to mate with the gimbal bearing and a second end to mate with the flexible member, the shaft, in response to a force in a first direction perpendicular to the shaft, performs an angular motion in a first plane;
a set of ball bearings;
a sliding plate cover comprising one or more recesses dimensioned to receive the set of ball bearings;
a sliding plate affixed to the flexible member, the sliding plate mates, via the set of ball bearings, with the sliding plate cover, the flexible member translates the angular motion into a lateral motion in the first direction; and
a shaft spring to dampen the lateral motion.