US 12,440,726 B2
Bottom-free stationary bike
Shih-Wei Liu, Taipei (TW); and Wei-Hsiang Lin, Changhua County (TW)
Assigned to Dyaco International Inc., Taipei (TW)
Filed by Dyaco International Inc., Taipei (TW)
Filed on Feb. 7, 2024, as Appl. No. 18/435,874.
Claims priority of application No. 113102095 (TW), filed on Jan. 18, 2024.
Prior Publication US 2025/0235742 A1, Jul. 24, 2025
Int. Cl. A63B 22/06 (2006.01); A63B 21/00 (2006.01); A63B 22/00 (2006.01)
CPC A63B 22/0605 (2013.01) [A63B 21/4034 (2015.10); A63B 21/4035 (2015.10); A63B 22/0046 (2013.01); A63B 2225/09 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A stationary bike, comprising:
a first movable structure comprising a first end in contact with a ground and a second end suspended above the ground, wherein the first movable structure is turnable with its first end as a fulcrum;
a second movable structure comprising a first end in contact with the ground and a second end suspended above the ground, wherein the second movable structure is turnable with its first end as a fulcrum, and the second end of the first movable structure and the second end of the second movable structure are pivotally connected at a pivot;
a frame being connected to the first movable structure and comprising a handle support and a seat support;
a resistance device comprising an axis;
two cranks being arranged on a left side and a right side of the resistance device, and each of the two cranks comprises a first end connected to the axis;
two pedals being respectively connected to a second end of one of the two cranks; and
a linear mechanism being connected between the handle support and the second movable structure or being connected between the seat support and the second movable structure, wherein a length of the linear mechanism is adjusted to change an angle between the first movable structure and the ground and an angle between the second movable structure and the ground.