公开(公告)号：US20210188392A1

公开(公告)日：2021-06-24

申请号：US17057323

申请日：2019-03-27

申请人： DONGBIN ZENG

发明人： DONGBIN ZENG

IPC分类号： B62M1/10 ,  B62M9/04

摘要： Adjustable speed effort-saving bicycle, comprising a front wheel assembly, a rear wheel assembly, and a frame, the front wheel assembly and the rear wheel assembly mounted on either front or rear end of the frame, also comprising quad-connecting rod mechanism, a chain wheel, chain A, and a transmission mechanism converting rider weight into a rocking force. The quad-connecting rod mechanism is mounted on the frame. The chain wheel is on the frame and meshes with middle part of chain A. The chain wheel is connected to the rear wheel assembly via transmission apparatus. One end of chain A is connected to an output frame-connecting rod of the quad-connecting rod mechanism. A bent part extends from where the output frame-connecting rod joins the frame. Another end of chain A is connected to the bent part. A tensioner for tensioning chain A is between the bent part and the output frame-connecting rod.

公开(公告)号：US11702170B2

公开(公告)日：2023-07-18

申请号：US17041728

申请日：2019-02-27

申请人： Dongbin Zeng

发明人： Dongbin Zeng

IPC分类号： B62M1/20 ,  B62M1/10 ,  B62M1/12 ,  B62J1/14 ,  B62M25/06

CPC分类号： B62M1/20 ,  B62M1/10 ,  B62M1/12 ,  B62J1/14 ,  B62M25/06

摘要： Extreme labor-saving bicycle, comprising a front wheel assembly, a rear wheel assembly, a handle, a pedal, a frame, a connecting rod, a swinging rod, a seat and a transmission mechanism for transferring force of the swinging rod to the rear wheel assembly, wherein, the front wheel assembly and the rear wheel assembly are mounted at front end and rear end of the frame, the pedal is rotatably mounted at lower end of the middle of the frame, the swinging rod and the pedal are hinged to two ends of the connecting rod, the seat is fixed at a hinging end of the connecting rod and the swinging rod, and one end of the swinging rod away from the seat, is hinged to front end of the frame and connected with the rear wheel assembly through the transmission mechanism.

公开(公告)号：US20210114685A1

公开(公告)日：2021-04-22

申请号：US17041728

申请日：2019-02-27

申请人： DONGBIN ZENG

发明人： DONGBIN ZENG

IPC分类号： B62M1/20 ,  B62J1/14 ,  B62M1/10

摘要： Extreme labor-saving bicycle, comprising a front wheel assembly, a rear wheel assembly, a handle, a pedal, a frame, a connecting rod, a swinging rod, a seat and a transmission mechanism for transferring force of the swinging rod to the rear wheel assembly, wherein, the front wheel assembly and the rear wheel assembly are mounted at front end and rear end of the frame, the pedal is rotatably mounted at lower end of the middle of the frame, the swinging rod and the pedal are hinged to two ends of the connecting rod, the seat is fixed at a hinging end of the connecting rod and the swinging rod, and one end of the swinging rod away from the seat, is hinged to=front end of the frame and=connected with the rear wheel assembly through the transmission mechanism.