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US 5,423,729 AGranted
Collapsible exercise machine with arm exercise
OwnerPaul W. Eschenbachinventor
Life of this patent
Estimating the term…
Abstract
An exercise apparatus having a collapsible frame that simulates running and climbing depending upon where the foot is positioned along the elongate pedal. The user is able to maintain a standing posture while elongate pedals supporting each foot move through an exercise cycle having a different mode for each foot position that includes translating and non-parallel angular motion generated by a linkage mechanism. Arm exercise is provided by rocker extensions which are phased with the crank to use arm force for moving the crank through dead center positions.
Claims19
A collapsible exercise machine comprising:
- a pedal means, said pedal means having a pedal adjustable length means whereby a first pedal support member is operably associated with a second pedal support member to have adjustable distance between pedal support pivots;
- a rocker means, said rocker means rotatably attached to the said second pedal support member on one end and rotatably connected to an upright support means;
- an upright support means rotatably connected to said rocker means and pivotally connected to a frame and maintained rigid in one or more different positions relative to a frame during operation by a locking means;
- a frame, said frame having a first support member and a second support member, whereby an adjustment means controls the position of said second support member relative to said first support member a third support member pivotally connected to said second support member, a fourth support member pivotally connected to said first support member at one end and rotatably connected to said third support member at the other end, a crankshaft bearing housing connected to said fourth support member and having a crank means projecting outwardly therefrom on both sides thereof, said first pedal support member connected to the end of each crank means, said second pedal support member being operably associated with said rocker means to allow said pedal means to move relative to said upright support means when the foot of the user is rotating said crank means and,
- a locking means on each pedal means maintaining said first pedal support members and said second pedal support members in fixed positions relative to each other until said locking means are released to allow said second pedal support members to move relative to said first pedal support members, whereafter said upright support locking means is released and said adjustment means is adjusted to collapse said exercise machine.
2 more elements
The collapsible exercise machine according to claim 8 wherein the adjustable load resistance means is a friction brake operably coupled to said crank means and said fourth support member.
A collapsible exercise machine comprising:
- a pedal means, said pedal means having a hollow pedal member and a rod pedal member telescoped within said hollow pedal member;
- a rocker means, said rocker means rotatably attached to said rod pedal member on one end and rotatably connected to an upright support means whereby the other end of the said rocker means is available for arm exercise;
- an upright support means rotatably connected to said rocker means and pivotally connected to a frame and maintained rigid in one or more different positions relative to a frame during operation by a locking means;
- a frame, said frame having one or more side members, said side members having an adjustable length means, said side members connected on one end to a first support member and connected on the other end to a second support member, a third support member pivotally connected to said second support member, a fourth support member pivotally connected to said first support member at one end and rotatably connected to said third support member at the other end, a crankshaft bearing housing connected to said fourth support member and having a crank means projecting outwardly therefrom on both sides thereof, said hollow pedal member connected to the end of each crank means, said rod pedal member being operably associated with said rocker means to allow said pedal means to move relative to said upright support means when the foot of the user is rotating said crank means, the foot surface of said pedal means becomes generally parallel to said side members when the crank means is in the bottom position of rotation while the foot surface of said pedal means on the other side remains inclined and,
- a locking means on each pedal means maintaining said hollow pedal members and said rod pedal members in fixed positions until said locking means are released to allow said rod pedal members to slide relative to said hollow pedal members, whereafter said upright support locking means is released and said side member length is adjusted to collapse said exercise machine.
2 more elements
Dependencies are inferred from the claim text.