US 12,377,302 B2
Fitness pull device
Xingxing Wang, Zhejiang (CN)
Assigned to HANGZHOU YUSHU TECHNOLOGY CO., LTD., Zhejiang (CN)
Appl. No. 17/640,254
Filed by Xingxing Wang, Zhejiang (CN)
PCT Filed Jul. 23, 2020, PCT No. PCT/CN2020/103718
§ 371(c)(1), (2) Date Mar. 3, 2022,
PCT Pub. No. WO2020/253888, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 201920905356.8 (CN), filed on Jun. 17, 2019.
Prior Publication US 2022/0305320 A1, Sep. 29, 2022
Int. Cl. A63B 21/005 (2006.01); A63B 21/00 (2006.01); A63B 24/00 (2006.01); H02K 7/106 (2006.01)
CPC A63B 21/0054 (2015.10) [A63B 21/0058 (2013.01); A63B 21/153 (2013.01); H02K 7/106 (2013.01); A63B 2024/0093 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A fitness pull device, comprising a torque-controllable motor and a pull mechanism, wherein
the motor has an output shaft and a stator end;
the pull mechanism comprises a housing which covers the motor, a motor base fixed in an inner cavity of the housing, a winding piece rotatably provided on the output shaft of the motor so as to rotate about an axis of the output shaft, and a rope wound on the winding piece;
the stator end of the motor is fixed to the motor base, the housing is provided with a wire hole through which the rope passes, and the position of the wire hole matches a mounting position of the winding piece; and
the motor is configured to transfer torque to the rope on the winding piece, so that a size of the force is configured to be changed according to actual usage requirements of the user,
the motor drives, by means of a reducer, the winding piece, and the reducer comprises a planetary reducer and a fixed frame, an end portion of the fixed frame is fixedly connected to the motor base, with a space for mounting the planetary reducer,
the winding piece is positioned between the planetary reducer and the motor base,
the output shaft of the motor is fixedly connected to a sun gear of the planetary reducer, and the winding piece is integrated with or fixedly connected to an output planet carrier of the planetary reducer.