US 4,712,790 AGranted

Cycle exerciser

AssigneeSchwinn Bicycle Company

InventorEugene J. Szymski

Life of this patent

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Abstract

A cycle exerciser has a pedal-actuatable drive shaft and a pair of counter shafts rotatably mounted about spaced, parallel axes. First and second sprockets are mounted on the drive shaft and on one of the counter shafts, respectively. Third and fourth sprockets are mounted on the other counter shaft. A fifth sprocket is connected to an energy-absorbing wheel. The first and second sprockets are the same size and larger than the third sprocket. The fourth sprocket is larger than the fifth. A pair of oscillatable handle bar levers are connected to drive crank arms at opposite ends of the one counter shaft. A primary endless chain is in wraparound connecting engagement with the first, second, and third sprockets. A secondary endless chain is in wraparound connecting engagement with the fourth and fith sprockets. Energy is applied to the wheel through foot pedals and/or the handle bar levers.

Claims6

Dependent claims

In a cycle exerciser having a frame, a pedal-actuatable main drive shaft, a pair of counter shafts, and energy-absorbing means all rotatably mounted thereon, and a pair of handle bar levers oscillatably mounted thereon, the improvement wherein

said shafts are mounted about separate, spaced, parallel, substantially horizontal axes;
a first sprocket is mounted on said main drive shaft;
a second sprocket the same size as said first sprocket is mounted on one of said counter shafts;
a pair of drive crank means are secured to opposite ends of said one counter shaft and extended in opposite lateral directions;
third and fourth sprockets are mounted on the other counter shaft;
a fifth sprocket is in driving relation with said energy absorbing means;
a primary orbitally moveable endless chain is in wraparound connecting engagement with said first, second, and third sprockets;
a secondary orbitally moveable endless chain is in wraparound connecting engagement with said fourth and fifth sprockets;
and
said handle bar levers are connected to said drive crank arms;
whereby said energy-absorbing means may be rotatably driven by said pedals and said handle bar levers jointly or separately.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/040,341Filed 20 Apr 1987
Granted: 15 Dec 1987
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

A63B 22/001
Involving an exercising of arms: by simultaneously exercising arms and legs, e.g. diagonally in anti-phase
A63B 22/0605
With support elements performing a rotating cycling movement, i.e. a closed path movement: performing a circular movement, e.g. ergometers
A63B 23/03575
For limbs, i.e. upper or lower limbs, e.g. simultaneously: apparatus used for exercising upper and lower limbs simultaneously
Y10T 74/19102
Parallel: belt or chain