US 11,938,369 B2
Treadmill with anti-entrapment function
Wen-Tu Li, Taichung (TW); and Ssu-Shun Yang, Taichung (TW)
Assigned to REXON INDUSTRIAL CORP., LTD., Taichung (TW)
Filed by REXON INDUSTRIAL CORP., LTD., Taichung (TW)
Filed on May 17, 2022, as Appl. No. 17/746,208.
Prior Publication US 2022/0362627 A1, Nov. 17, 2022
Int. Cl. A63B 22/02 (2006.01)
CPC A63B 22/0235 (2013.01) [A63B 2220/833 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A treadmill with an anti-entrapment function, allowing a user to stand thereon, the treadmill with the anti-entrapment function comprising:
a running unit including a main base, two lateral bases, a driving roller, a driven roller, and a running belt, wherein the lateral bases extend rearward from the main base and are spaced apart from each other, the driving roller and the driven roller are pivotally provided between the lateral bases, the running belt is provided between the lateral bases, is looped around the driving roller and the driven roller, and allows the user to stand on the running belt, each said lateral base extends in a direction defined as a front-rear axial direction, each said lateral base has a front section adjacent to the main base and a rear section extending away from the front section along the front-rear axial direction, and each said rear section has a top end portion higher than the running belt and a bottom end portion lower than the running belt;
a driving unit provided at the main base and configured to drive the driving roller into rotation and consequently the running belt into rotation around the driving roller and the driven roller, thereby allowing the user to run forward on the running belt in the front-rear axial direction;
a control unit in signal communication with the driving unit; and
a sensing unit including a guard bar and at least one sensing member, wherein the guard bar is movably provided at bottom end portions of the running unit and is at least partially located at a back end of the running belt, the at least one sensing member is provided at the running unit, the guard bar has a side located at the back of the running belt and an opposite side extending forward, provided at the bottom end portions, and adjacent to the at least one sensing member, such that when the guard bar is subjected to an external force and is thus moved with respect to the bottom end portions, an end of the guard bar that is adjacent to the at least one sensing member drives the at least one sensing member to send a warning signal to the control unit, in order for the control unit to control a rotation speed of the driving roller accordingly.