Patent ID: 7862482
Filing Date: 2011-01-04
Classification: A63B

Abstract:
1. An adjustable elliptical trainer comprising: a base having a front end; a rear end; a centerline defined from the front end to the rear end to divide the base into two segments symmetrically; a wheel frame mounted on the front end of the base on the centerline and having a top end; a shaft hole formed through the wheel frame; and a fulcrum shaft mounted rotatably through the top end of the wheel frame; a transmitting wheel mounted rotatably on the base and having a transmitting shaft mounted through the shaft hole of the wheel frame and having two outer ends; and two transmitting levers respectively mounted radially on the outer ends of the transmitting shaft, and extending respectively toward two directions opposite to each other, and each having a connecting end; two link assemblies respectively set on two sides of the base, being symmetrical to the centerline, and mounted pivotally on the transmitting levers and the fulcrum shaft, and each having: a bottom lever having a front end mounted pivotally on the outer end of the transmitting lever, a rear end, and a middle part defined between the front end and the rear end of the bottom lever; a front lever having a bottom end directly mounted pivotally on the middle part of the bottom lever, and a top end; and an upper lever having a front end directly mounted pivotally on the top end of the front lever, a rear end, and a fulcrum part defined near the rear end of the upper lever and mounted rotatably on the fulcrum shaft; a rear lever having a top end directly mounted pivotally on the upper lever between the front end and the fulcrum part of the upper lever, a bottom end, and an adjusting element mounted on the rear lever between the top end and the bottom end of the rear lever, and connected to the rear end of the bottom lever, and making the bottom lever adjusting along a line parallel with the rear lever; a pedal lever having a front end mounted pivotally on the bottom end of the rear lever, a rear end, a middle part defined between the front end and the rear end of the pedal lever; and a swinging lever having a top end mounted pivotally on the rear end of the upper lever, and a bottom end mounted pivotally on the middle part of the pedal lever; and two pedals, each mounted on the rear end of the pedal lever.