Stepper

Abstract

The invention provides a stepper, comprising an underframe, two rocking tubes, two pedal tubes, two pedals, a resistance device, two crank arms, two linking tubes, an upper frame, two swing tubes, and an adjusting device. One end of each rocking tube is pivoted to the underframe, the other end of each rocking tube is pivoted to one end of the corresponding pedal tube, and the other end of the pedal tube is connected to the corresponding pedal. One end of each crank arm is connected to a pivot of the resistance device, the other end of each crank arm is connected to one end of the corresponding linking tube, and the other end of the linking tube is pivoted to one area of the corresponding pedal tube. One end of the upper frame is pivoted to the underframe and has two fulcrums. The first end of each swing tube is pivoted to the corresponding fulcrum of the upper frame, the second end of each swing tube is pivoted to one part of the corresponding pedal tube, and the adjusting device is used for adjusting distances between the pivot of the resistance device and the fulcrums. The movement trajectories of the pedals are ergonomic such that the trajectories are close to that of actual stepping, bestriding or climbing movements.

Description

Technical field [0001] The invention relates to an exercise device, especially a stepper. Background technique [0002] A stepper is a kind of exercise equipment that can increase the heart rate, burn calories, and increase the endurance of the heart muscle. [0003] In the traditional stepper design, the user stands on two pedals with predetermined resistance, and the two pedals are alternately lifted by applying force on both feet, and the footsteps move as if continuously up the stairs to exercise the muscles of the legs and buttocks. Compared with treadmills, steppers have less impact on the legs, but care must be taken to avoid knee injuries. [0004] Figure 1A versus Figure 1C Is the structure of two traditional steppers, Figure 1B for Figure 1A Pedal motion trajectory, Figure 1D for Figure 1C Trajectory of pedal movement. Figure 1A Is a fixed-axis single-link structure, and Figure 1B It is a fixed-axis double-link structure. The pedal 20 is fixed to the connecting rod 2...

AI Technical Summary

Problems solved by technology

In the above-mentioned structure, the thrust of pedal ascending is insufficient, and it is difficult to simulate actual stepping, striding, or mountain climbing

[0006] In addition, the conventional steppers cannot adjust the size and angle of the stride for different users

[0007] In addition, in the prior art stepper, the pedal slides along the limited track, which will produce abnormal sound

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