Patent ID: 8740755
Filing Date: 2014-06-03
Classification: A63B

Abstract:
1. An elliptical exercise apparatus, comprising: a body having a base frame and two supporting frames at two opposite sides of the base frame; a pair of swing sleeves each pivotally connected with one of the two supporting frames; a pair of sliding arms each having a top portion slidably inserted through one of the swing sleeves, and a bottom portion extending transversely and coupled with a treadle; a pair of swing arms each having an end pivotally coupled with the base frame; a pair of sliding sleeves each axially slidably sleeved onto one of the swing arms and pivotally connected with the bottom portion of one of the sliding arms through a pivot; a rotational shaft having two ends is transversely and rotationally coupled with the base frame; and two links each having an end vertically coupled with one of the two ends of the rotational shaft, and an opposite end pivotally connected with a lower portion of one of the sliding sleeves; whereby when the treadles are pushed, the swing sleeves and the swing arms respectively swing back and forth, the sliding arms and the sliding sleeves slide vertically along the swing sleeves and the swing arms respectively, and the links synchronously rotate about the rotational shaft, causing the treadles to move along an elliptical exercise track.