US 12,257,468 B2
Fan bike providing magnetically controlled resistance
Xiaowu Chen, Fujian (CN)
Filed by Xiamen Klifesport Co., Ltd., Fujian (CN)
Filed on Jul. 17, 2023, as Appl. No. 18/223,012.
Prior Publication US 2023/0356018 A1, Nov. 9, 2023
Int. Cl. A63B 21/00 (2006.01); A63B 22/06 (2006.01)
CPC A63B 21/00192 (2013.01) [A63B 22/0605 (2013.01); A63B 2022/0611 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A fan bike providing magnetically controlled resistance, comprising a fan wheel and a micro adjustment assembly, both installed on a bike frame;
the fan wheel is rotatably mounted on the bike frame; one side of the fan wheel is fixedly connected sequentially with an iron ring and an aluminum ring; the iron ring and the aluminum ring are co-axial with the fan wheel;
the micro adjustment assembly comprises a fixed seat, a movable seat, at least one neodymium magnet, an adjustment handle, and a pulling wire; the fixed seat is mounted inside the bike frame; the movable seat and the fixed seat are slidably connected; the neodymium magnet is mounted on the movable seat, and faces towards a side of the aluminum ring facing opposite to the iron ring; the adjustment handle is movably mounted outside the bike frame; two ends of the pulling wire are connected to the movable seat and the adjustment handle respectively.