Multipurpose Exercise Machine Utilizing Vacuum Springs
First Claim
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1. A multipurpose exercise machine comprising:
- a frame,a plurality of vacuums spring comprising;
a. two substantially rigid end pieces having interlocking surfaces in their center that substantially eliminate any open space between them when positioned next to each other,b. a flexible membrane forming a closed loop and having two ends and a concave shape with the apex of the concave pointing generally toward the middle of the loop,c. a means for coupling the two ends of the flexible membrane and the two end pieces together whereby an air tight seal is formed between the end pieces and the flexible membrane,and whereby when the two end pieces are pulled apart a vacuum is formed in the region in between the two end pieces and the flexible membrane which opposes the motion of the two end pieces moving apart and assists the motion of the two end pieces when they move toward each other,a means for attaching one end piece of each vacuum spring to the frame,a rotatable shaft mounted on the frame,a large diameter pulley coupled to the shaft,a plurality of flexible linkages,a plurality of cams coupled to the shaft having an attachment for the flexible linkages and having an outside surface whose distance from its axis of rotation to the point where the flexible linkage separates decreases when the pulley is rotated through a forward stroke and increases when the pulley rotates through a reverse stroke,a foundation for mounting the frame on,a device for attaching the frame to the foundation,a cable for wrapping around the large diameter pulley whereby a user can pull on the cable and force the pulley to rotate.
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Abstract
A multipurpose exercise machine comprising a compact movable frame, a large diameter pulley and a plurality of novel low friction vacuum springs for generating a force is disclosed. The vacuum springs are comprised of two rigid end pieces that are movable relative to each other. A flexible membrane couples the two rigid end pieces to each other and encloses a hermetically sealed region in between the movable bodies and the flexible membrane. A user operating the machine exerts a force that pulls the two end pieces are apart which forms a vacuum that opposes the motion.
24 Citations
10 Claims
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1. A multipurpose exercise machine comprising:
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a frame, a plurality of vacuums spring comprising; a. two substantially rigid end pieces having interlocking surfaces in their center that substantially eliminate any open space between them when positioned next to each other, b. a flexible membrane forming a closed loop and having two ends and a concave shape with the apex of the concave pointing generally toward the middle of the loop, c. a means for coupling the two ends of the flexible membrane and the two end pieces together whereby an air tight seal is formed between the end pieces and the flexible membrane, and whereby when the two end pieces are pulled apart a vacuum is formed in the region in between the two end pieces and the flexible membrane which opposes the motion of the two end pieces moving apart and assists the motion of the two end pieces when they move toward each other, a means for attaching one end piece of each vacuum spring to the frame, a rotatable shaft mounted on the frame, a large diameter pulley coupled to the shaft, a plurality of flexible linkages, a plurality of cams coupled to the shaft having an attachment for the flexible linkages and having an outside surface whose distance from its axis of rotation to the point where the flexible linkage separates decreases when the pulley is rotated through a forward stroke and increases when the pulley rotates through a reverse stroke, a foundation for mounting the frame on, a device for attaching the frame to the foundation, a cable for wrapping around the large diameter pulley whereby a user can pull on the cable and force the pulley to rotate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification