| 摘要 |
An exercise device comprises a frame, two pedals, two first swing arms, two second swing arms, a resistance device, two link rods, two cranks, two limiting rods, and a stride-adjusting device. Each first swing arm has two ends, in which one end pivotally connects to the frame, and the other connects to one second swing arm. Each second swing arm has two ends, in which one end connects to one first swing arm, and the other connects to one pedal. Each crank includes an end connecting to an axle of the resistance device and another end connecting to one link rod. Each link rod includes two ends, in which one end connects to one crank, and the other connects to an area of one second swing arm. Each pedal sildely couples with one corresponding limiting rod, and an end of each limiting rod movably couples with the stride-adjusting device. |
| 主权项 |
1. An exercise device, comprising:
a frame; two first swing arms respectively arranged at a left side and a right side of the frame, each first swing arm having a first end pivotally coupling with the frame; two second swing arms coupling with the two first swing arms, each first swing arm having a second end pivotally coupling with a first end of one corresponded second swing arm; two pedals coupling with the two second swing arms, each second swing arm having a second end coupling with one corresponded pedal; a resistance device pivoted to the frame by an axle for providing a resistance; two cranks respectively arranged at a left side and a right side of the resistance device, each crank having a first end coupling with the axle of the resistance device; two link rods coupling with the two cranks and the two second swing arms, each link rod having a first end and a second end, the first end of each link rod coupling with a second end of one corresponded crank, the second end of each link rod coupling with a portion of one corresponded second swing arm; two limiting rods, each limiting rod having a first end pivotally coupling with the frame, the two pedals slidably coupling with two limiting rods; a stride-adjusting device having a first end coupling with the frame and a second end movably coupling with a second end of each of the two limiting rods. |
