US2008146417A1PendingUtilityA1

Leg fitness equipment motion guide

Assignee: CHANG SRETERPriority: Dec 15, 2006Filed: Feb 2, 2007Published: Jun 19, 2008
Est. expiryDec 15, 2026(~0.4 yrs left)· nominal 20-yr term from priority
Inventors:Sreter Chang
A63B 2022/206A63B 22/0015A63B 22/0064A63B 22/0664A63B 22/203A63B 2022/0676
46
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Claims

Abstract

A leg fitness equipment includes two cranks respectively connected to both sides of a transmission shaft of a transmission wheel; each crank being inserted to a transmission bracket; each transmission bracket being pivoted to a pull rod; a pedal being provided to each pull rod; a terminal of each pull rod being pivoted to a guide pulley bracket containing a guide pulley or pulley; both guide pulleys or pulley striding over two sidetracks provided to both sides of a base of the fitness equipment; a user stepping on the pair of pedals to alternatively stamp thereon for both pull rods to slide back and forth on the guide track by means of the guide pulley; each pull rod follows the turning of the cranks at one end of the crank to be driven to its ascending and descending positions while reciprocally traveling by following expansion or reducing of the guide track; both pull rods drive the pair of pedals to produce oval turning; a reinforced section defined by a link between both terminals of two sidetracks to prevent the guide track from shaking and deformation due to torsion applied by the pair of pedals; and a user may stamp the pair of pedals in a position either facing or facing away from the transmission wheel of the fitness equipment to select travel motion in a toe-out or toe-in fashion in exercising stable simulation of roller/in-line skating, skiing, treading, walking, or twisting motion for achieving fitness purpose.

Claims

exact text as granted — not AI-modified
1 . A leg fitness equipment motion guide includes a transmission wheel; a resistance control mechanism, a pair of pedals to drive the transmission wheel to turn around with the resistance control mechanism to control the size of resistance of the active transmission wheel; two pull rods respectively pivoted to a transmission bracket, a sleeve being disposed to the front end of the transmission bracket to receive insertion of a transmission shaft of a crank connected to the transmission wheel, and another end of each pull rod being pivoted to a guide pulley bracket containing a pulley, and the pedal being provided to each pull rod; a guide track comprised of two sidetracks respectively extending at a proper spacing and externally from a base of the fitness equipment with their terminals connected into a reinforced section to form a V-shaped guide track, a triangle guide track, or a parallel guide tracks for both guide pulleys of their respective guide pulley brackets; both pull rods producing free turning direction on the V-shaped guide track, the triangle guide track or both parallel side tracks of the guide track by applying both axial shafts on two guide pulley brackets and both pivots on two transmission brackets; both pull rods driving the pair of pedals to engage in oval turning; relatively a user of the fitness equipment alternatively stepping on the pair of pedals to execute reciprocal traveling in toe-in or toe-out fashion; the reinforced section defined by linking both terminals of two sidetracks on both side of the guide track preventing the guide track from shaking and deformation due to torsion applied by the pair of pedals to provide the user stable simulation of roller/in-line skating, skiing, treading, walking, and twisting to achieve fitness purpose. 
     
     
         2 . The leg fitness equipment motion guide as claimed in  claim 1 , wherein the transmission wheel drives the crank; each sleeve inserted to the transmission shaft drives the transmission bracket to oscillate up and down; the transmission bracket is pivoted to the front end of the pull rod by means of a pivot for the pull rod to engage in lateral swinging; another end of each pull rod is pivoted to a guide pulley bracket by means of an axial shaft; and the guide pulley of the guide pulley bracket automatically turns direction at the angle of the guide track while drawing the pull rod to swing. 
     
     
         3 . The leg fitness equipment motion guide as claimed in  claim 1 , wherein the user steps on the pair of pedals to engage in toe-out or toe-in traveling on the V-shaped or the triangle guide rail depending on whether the user if facing or facing away from the transmission wheel of the fitness equipment. 
     
     
         4 . The leg fitness equipment motion guide as claimed in  claim 1 , wherein two additional sections of tracks parallel with each other are disposed to the inner or outer sides of the sidetracks of the V-shape or the triangle guide track. 
     
     
         5 . The leg fitness equipment motion guide as claimed in  claim 1 , wherein a channel is provided on the guide track, and a pulley is axially disposed to the guide pulley bracket for both pulleys to engage in limited traveling back and forth in the channel. 
     
     
         6 . A leg fitness equipment motion guide includes a transmission wheel and a resistance control mechanism; a pair of pedals drive the transmission wheel to turn around; the resistance control mechanism controls the size of resistance to turn around the transmission wheel; one end of each of two pull rods directly connects to a sleeve disposed to a crank; the crank is inserted into a transmission shaft of the transmission wheel; a guide pulley bracket is fixed to another end of each pull rod, a pedal is disposed to each pull rod; and the pulley direct contacts a floor; both rods are pushed to drive the crank to engage in sliding back and forth for the user to simulate roller/in-line skating, skiing, treading, walking, or twisting motion. 
     
     
         7 . The leg fitness equipment motion guide as claimed in  claim 6 , wherein both pull rods and their respective sleeves are connected in a toe-out or a toe-in-fashion.

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