US 12,220,613 B2
Freewheel adjustable wheel and exercise bicycle including same
Sunggyu Koh, Seoul (KR); Min Seok Kim, Seoul (KR); Dongkyu Choi, Seoul (KR); and Yong-Hee Lee, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 18/025,152
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Sep. 8, 2021, PCT No. PCT/KR2021/012245
§ 371(c)(1), (2) Date Mar. 7, 2023,
PCT Pub. No. WO2022/055263, PCT Pub. Date Mar. 17, 2022.
Claims priority of application No. 10-2020-0115098 (KR), filed on Sep. 9, 2020.
Prior Publication US 2023/0321481 A1, Oct. 12, 2023
Int. Cl. A63B 22/06 (2006.01); A63B 21/00 (2006.01); A63B 21/005 (2006.01); A63B 21/22 (2006.01); A63B 23/04 (2006.01); B60B 27/04 (2006.01)
CPC A63B 22/0605 (2013.01) [A63B 21/0058 (2013.01); A63B 21/151 (2013.01); A63B 21/157 (2013.01); A63B 21/225 (2013.01); A63B 23/0494 (2013.01); A63B 2022/0641 (2013.01); B60B 27/047 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A freewheel adjustable wheel comprising:
a pulley rotatable by power transmitted from a pedal;
a rotation gear part rotatable together with the pulley secured to an outside thereof, and comprising a circular gear provided along an outer circumference of the rotational gear part;
a case rotatably supporting the rotation gear part;
a first power transmission part connected to the rotation gear part and the case and rotatably supporting the rotation gear part, and configured to transmit power transmitted to the rotation gear to the case when the rotation gear part is rotated in a forward direction; and
a second power transmission part provided in the case and engaged with the circular gear by operation by an external force, and configured to transmit power transmitted to the rotation gear part to the case when the rotation the rotation gear part is rotated in a reverse direction.