Adjustable elliptical exercise machine

a technology of adjustable elliptical and exercise machine, which is applied in the direction of gymnastic exercise, frictional force resistor, sport apparatus, etc., can solve problems such as the stress of the ankl

Active Publication Date: 2006-09-07
ESCHENBACH PAUL WILLIAM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016] A first actuator is provided to move the stride adjustment link which causes the rocker pivot of the rocker link to move along one end of the rocker link. This is accomplished with a gear centered about the rocker pivot on a gear shaft and a gear rack attached to the rocker link. A toothed belt and a pair of toothed belt gears cause the gear shaft to rotate when the stride adjustment link is moved such that the gear rotates along the rack. The relocation of the rocker pivot changes the stride length of the pedals. The stride length can be changed during operation or when the apparatus is stationary.

Problems solved by technology

Excessive pedal articulation causes ankle stress.

Method used

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  • Adjustable elliptical exercise machine
  • Adjustable elliptical exercise machine
  • Adjustable elliptical exercise machine

Examples

Experimental program
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Embodiment Construction

[0022] Referring to the drawings in detail, pedals 50 and 52 are shown in FIGS. 1 and 2 in the most forward and rearward positions of the preferred embodiment. Pedals 50 and 52 are supported by foot support members 54 and 56 and traverse an elongate closed loop path 5. Foot support members 54,56 are connected to drive links 24,26 at pivots 25,27 and supported by rollers 58,60 positioned intermediate the ends at pivots 51,53. Rollers 58,60 are in rollable contact with guides 114.

[0023] Drive links 24,26 are connected to crank arms 20,22 intermediate the ends at pivots 21,23. Crank arms 20,22 are joined as generally opposed at pivot axis 43 to form a crank. Rocker links 38,40 are connected to stride adjustment members 2,4 at gear shaft 41 and to coupler links 28,30 at pivots 33,35. As crank arms 20,22 complete a revolution, rockers 38,40 oscillate about gear shaft 41 acting as a pivot.

[0024] Connector links 34,36 are connected to rocker links 38,40 at pivots 37,39 and to drive links...

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PUM

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Abstract

The present invention relates to a standup exercise apparatus that simulates walking, jogging and climbing with arm exercise. More particularly, the present invention relates to an exercise machine having separately supported pedals for the feet and arm exercise coordinated with the motion of the feet. Elliptical cross trainers guide the feet along a generally elliptical shaped curve to simulate the motions of jogging and climbing. Existing elliptical cross trainers often use excessive pedal articulation which can overwork the ankle to achieve a longer stride. The present invention is an improved elliptical exercise machine capable of extended exercise with less pedal articulation that is more ankle friendly. One end of a foot support member has a pedal which follows elliptical motion while the other end is guided by a drive link to drive an alternator and flywheel. The resulting pedal motion is foot friendly. Handles are coordinated with the foot support members for arm exercise. Both the stride length and orientation of the pedal ellipse are adjustable.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field [0002] The present invention relates to a standup exercise apparatus that simulates walking, jogging and climbing with arm exercise. More particularly, the present invention relates to an exercise machine having separately supported pedals for the feet and arm exercise coordinated with the motion of the feet. The elliptical path provided by the pedals is adjustable in length and orientation. [0003] 2. State of the Art [0004] The benefits of regular exercise to improve overall health, appearance and longevity are well documented in the literature. For exercise enthusiasts the search continues for safe apparatus that provides full body exercise for maximum benefit in minimum time. [0005] Recently, a new category of exercise equipment has appeared on the commercial market called elliptical cross trainers. These cross trainers guide the feet along a generally elliptical shaped curve to simulate the motions of jogging and climbing. Generally th...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A63B22/04
CPCA63B21/0051A63B21/0053A63B21/0085A63B21/012A63B21/225A63B22/001A63B22/0015A63B22/0664A63B22/203A63B22/205A63B2022/0676
Inventor ESCHENBACH, PAUL WILLIAM
Owner ESCHENBACH PAUL WILLIAM
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