US 12,390,685 B2
Multifunctional core training device
Lung-Fei Chuang, Taichung (TW)
Filed by Lung-Fei Chuang, Taichung (TW)
Filed on Jan. 23, 2024, as Appl. No. 18/419,578.
Claims priority of application No. 202321340702.5 (CN), filed on May 30, 2023.
Prior Publication US 2024/0399200 A1, Dec. 5, 2024
Int. Cl. A63B 23/02 (2006.01); A63B 21/00 (2006.01)
CPC A63B 23/0216 (2013.01) [A63B 23/0211 (2013.01); A63B 21/00185 (2013.01); A63B 21/4035 (2015.10); A63B 2225/09 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A multifunctional core training device, comprising:
a first frame body comprising a pivoting device;
a second frame body pivotally disposed on the first frame body and comprising a pivoting portion and a distal portion, and the pivoting portion pivotally disposed on the pivoting device;
a holding device disposed on one end portion of the first frame body;
two elastic elements disposed on the first frame body; and
two forcing elements respectively connected to the two elastic elements, wherein each of the two forcing elements is connected to one end of one of the two elastic elements, and the other end of the one of the two elastic elements is connected to the first frame body;
a sliding structure movably disposed on the first frame body; and
a switch disposed on the sliding structure, wherein the switch is for positioning a position of the sliding structure relative to the first frame body;
wherein when the second frame body pivots relative to the first frame body along a first circumferential direction with the pivoting device as an axis center, the distal portion of the second frame body gradually approaches the first frame body, so that the first frame body and the second frame body are arranged side by side, and then the sliding structure moves reciprocally along a major axis of the first frame body;
wherein when the second frame body pivots relative to the first frame body along a second circumferential direction with the pivoting device as the axis center, the distal portion of the second frame body is gradually away from the first frame body, so that the other end portion of the first frame body and the distal portion of the second frame body respectively abut against a ground, and then the sliding structure moves reciprocally along the major axis of the first frame body or is positioned on the first frame body.