Adjustable elliptical exercise machine
AssigneeMichael LIN
InventorsMing Nan Chen, Hsuan Fu Huang
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Abstract
An elliptical exercise machine includes a frame pivotally attached to a base, a pivotal coupling device pivotally coupling the base and the frame together, a retractable device having an outer tube pivotally coupled to the base, and an inner shaft slidably engaged in the outer tube and pivotally coupled to the pivotal coupling device for allowing the inner shaft to be moved into the outer tube or to be moved out of the outer tube when the frame is pivoted to the base, and a latching device for latching the inner shaft to the outer tube at any selected position and for allowing the elliptical exercise machine to be easily adjusted to different moving strokes and to be easily operated by the user.
Claims12
An elliptical exercise machine comprising:
- a base,
- a frame including a first end pivotally attached to said base with a spindle for allowing said frame to be pivoted and moved relative to said base, and including a second end for moving up and down relative to said base, said frame including two tracks,
- a pivotal coupling device pivotally coupling said base and said frame together,
- a retractable device including an outer tube pivotally coupled to said base, and including an inner shaft slidably engaged in said outer tube and having a free end pivotally coupled to said pivotal coupling device for allowing said inner shaft to be moved into said outer tube when said frame is pivoted downwardly toward said base, and for allowing said inner shaft to be moved out of said outer tube when said frame is pivoted upwardly away from said base, and
- a latching device for latching said inner shaft to said outer tube at a selected position.
Dependencies are inferred from the claim text.