Leg fitness equipment motion guide
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.
(a) Field of the Invention
The present invention is related to a motion guide, and more particularly to one adapted to a leg fitness equipment that offers its user treading forward or backward to exercise toe in, toe out, or lateral movement to simulate roller/in-line skating, treading, walking, twisting, and foot racing including two guide tracks respectively and externally extending from both sides of a base of the equipment at a proper spacing, a reinforced section being defined by linking both terminals of those two guide tracks; a pair of pedals being stamped alternatively to push and turn a crank to further drive a transmission bracket; the transmission bracket then drawing two freely swinging pull rods; and two freely swinging guide pulley disposed on two guide pulley brackets respectively disposed on terminals of those two pull rods following the guide provided by those two guide tracks to engage reciprocal travel.
(b) Description of the Prior Art
The present invention is related to an improved structure of the prior art applied by the same applicant of the present invention for patent in the following numbers of applications: Taiwan: 094207180, Taiwan: 094208488, China: 200420012546.0, Korea: 20-2004-0029098, USA: U.S. Ser. No. 10/963,506, and Germany: 2005004979.4. Each of two sliding tracks of the prior art is secured to a base of the fitness equipment with one end of a single linear sliding track while leaving another end suspending in the air for a pulley to travel back and forth on the linear sliding track; and by adjusting toe-in and toe-out between those two sliding tracks to simulate roller/in-line skating, skiing, treading, walking, and twisting motion requirements.
SUMMARY OF THE INVENTIONThe primary purpose of the present invention is to provide solutions to correct the following problems found with the prior art:
1. Complicated structure of technical configuration resulting in higher production cost;
2. Consuming larger space required for operation and preventing easy storage; and
3. Inconvenient use since adjustment needed for each exchange between exercise modes.
The present invention provides the following solutions:
1. The present invention related to a unit of leg fitness equipment is essentially comprised of two guide tracks respectively and externally extending from both sides of a base of the equipment at a proper spacing in the same direction, both terminals of those two guide track are linked to become V-shaped or a triangle, or parallel guide tracks; a pair of pedals being alternatively stamped to push a crank, the crank then driving a transmission bracket to draw two pull rods to swing freely; and two guide pulleys each from a guide pulley bracket mounted to the terminal of each pull rod reciprocally traveling along both guide tracks. The linkage between both terminals of those two guide tracks disposed on both sides in V-shaped, triangle or parallel functions to reinforce the strength of both guide tracks so to prevent from deformation due to shaking or torsion while a user is treading the pair of pedals. Meanwhile, according to the treading direction is selected by the use either facing or turning back on the leg fitness equipment, both guide tracks in V-shaped, triangle, or parallel allow the treading in toe-out or toe-in exercise mode to simulate roller/in-line skating, skiing, treading, walking, twisting, or foot racing motion.
2. In the present invention, one end of each pull rod is pivoted to the transmission bracket; each transmission bracket is pivoted to a crank on one side of a transmission wheel with a sleeve; and another end of each pull road the guide pulley bracket is pivoted to the terminal of the pull rod by means of an axial. Accordingly, both ends of each pull rod are capable of engaging in free off-center swinging through the pivot of the transmission bracket and the axial of the guide pulley bracket to allow both pull rods to reciprocally travel in off-center swinging fashion by following the angles of those two guide tracks disposed in V-shaped, triangle, or parallel with each other.
3. When the user stamps on the pair of pedals of the present invention in a position facing away from the transmission wheel, the V-shaped, the triangle or the parallel guide tracks becomes in an inverse V-shaped, triangle, or parallel guide tracks to allow both pull rods to engage in reciprocal toe-in, toe-out or parallel traveling motion for the user to achieve fitness effects by simulating roller/in-line skating, skiing, treading, walking, twisting, and foot racing.
4. The V-shaped, triangle, or parallel tracks in the present invention may be made into a channel and a pulley is axially provided to the guide pulley bracket by compromising the channel for the pulley to be confined in the channel to engage in limited travel back and forth.
5. Two additional guide tracks may be provided to the inner side or the outer side of the V-shaped, triangle, or parallel guide tracks to allow automatic turning direction during the traveling back and forth for achieving the exercise purpose of walking and foot racing according to the guidance provided by the guide pulley or pulley applied in the pivot of the transmission bracket and the guide pulley on each of those two parallel guide tracks.
6. When the present invention is placed on a flat and smooth floor, both pull rods may be forthwith made to connect both sleeves adapted to their respectively transmission crank with both pull rods being connected into a toe-in, toe-out or parallel fashion and both pulleys being respectively fixed to terminals of both pull rods directly contact the floor; the user may stamp on the pair of pedals to directly apply those two pulleys to slide forth and back on the floor while pushing to turn the crank and being subject to the resistance adjustment by a resistance control mechanism to achieve the same fitness results of simulating roller/in-line skating, skiing, ice skating, treading, twisting, walking, and foot racing.
Referring to
Now referring to
On the contrary, when the user steps on the pair of pedals 1131 in a position facing away from the transmission wheel 11 travels in a toe-in fashion to simulate treading or twisting motion as guided by the inverse V-shaped guide track 3 as illustrated in
As illustrated in
A triangle guide track 3′ is formed by two sidetracks 31′ respectively extending from the mid of the base 10 and the reinforced section 32 to follow the similar routes of those sidetracks 31 for both guide pulleys 1151 or the pulleys 1151′ to execute traveling back and forth in a toe-in or toe-out fashion for the user to simulate roller/in-line skating, skiing, ice skating or twisting motion depending on whether the user stepping on the pair of pedals 1141 faces or faces away from the transmission wheel 11.
Referring to
Now referring to
Claims
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.
Type: Application
Filed: Feb 2, 2007
Publication Date: Jun 19, 2008
Inventor: Sreter Chang (Hemei Township)
Application Number: 11/701,557
International Classification: A63B 22/20 (20060101);