Exercise devices – Involving user translation or physical simulation thereof
Reexamination Certificate
2000-07-17
2001-08-21
Crow, Stephen R. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
C482S057000, C482S070000
Reexamination Certificate
active
06277054
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an exerciser, and more particularly to a stepping exerciser having an adjustable mechanism for adjusting the moving stroke or the moving path of the exerciser.
2. Description of the Prior Art
U.S. Pat. No. 5,383,829 to Miller discloses a typical exerciser having a pair of foot supports movable along an elliptical moving path which may not be adjusted. U.S. Pat. No. 5,779,599 to Chen discloses another typical exerciser having a pair of foot supports movable along an elliptical moving path. The elliptical moving path of the exerciser may be adjusted by threading and unthreading the fasteners which may not be quickly operated or may not be quickly threaded and unthreaded relative to the elements that are required to be adjusted.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional exercisers.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide an exerciser including an adjustable mechanism for easily and quickly adjusting the moving stroke or the moving path of the exerciser.
In accordance with one aspect of the invention, there is provided an exerciser comprising a base including a front portion having a post extended therefrom, and including a rear portion, the post including an upper portion, a pair of cranks rotatably secured to the rear portion of the base at a pivot shaft, the cranks each including a free end, a pair of bars pivotally secured to the upper portion of the post, the bars each including a middle portion and each including a bottom end having a first pulley provided thereon, a pair of tracks engaged and movably supported on the first pulleys, the tracks each including a first end rotatably secured to the free ends of the cranks respectively, a pair of levers each including a first end pivotally secured to the bars respectively at a pivot pin, and each including a second end slidably engaged on the tracks respectively, and each including a foot support provided thereon, a pair of slides slidably received in the bars respectively, a pair of links each including a first end rotatably secured to the free ends of the cranks respectively and each including a second end rotatably secured to the slides respectively, and adjusting means for adjusting the slides relative to the bars respectively. The adjusting means may provide one or more motor devices coupled to the slides for moving the slides along the respective bars and for adjusting the moving path of the foot supports.
The second ends of the levers each includes a second pulley provided thereon and engaged on the tracks respectively. The bars each includes a chamber formed therein for slidably receiving the slides respectively, the adjusting means includes a pair of bolts rotatably received in the bars respectively and threadedly coupled to the slides respectively, and rotating means for rotating the bolts to move and to adjust the slides along the bars respectively and thus to move and to adjust the second ends of the links along the bars respectively.
The slides each includes a tube coupled thereto and threadedly engaged with the bolts respectively. The rotating means includes a pair of motors secured to the bars respectively, and coupling means for coupling the motors to the bolts respectively to rotate the bolts. The coupling means includes a pinion attached to each of the motors, a gear attached to each of the bolts, and a reduction gearing mechanism coupled between the pinion and the gear for coupling the motors to the bolts respectively.
The bars each includes a sleeve slidably engaged thereon and secured to the slides and the second ends of the links respectively. The slides each includes a pole extended therefrom and engaged through the sleeve and the second end of the link. The bars each includes a slot formed therein for slidably receiving the poles of the slides respectively and for guiding the slides to move along the respective bars.
Further objectives and advantages of the present invention will become apparent from a careful reading of a detailed description provided hereinbelow, with appropriate reference to accompanying drawings.
REFERENCES:
patent: 5383829 (1995-01-01), Miller
patent: 5759136 (1998-06-01), Chen
patent: 5762588 (1998-06-01), Chen
patent: 5779599 (1998-07-01), Chen
patent: 6077198 (2000-06-01), Eschenbach
Baxley, Esq Charles E.
Crow Stephen R.
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