Bidirectional resistance apparatus for exercise equipment
First Claim
Patent Images
1. An exercise apparatus comprising:
- a resistance source coupled to a cable between first and second ends of the cable;
a rotational resistance mechanism comprising;
a shaft;
a first rotatable member rotatable about the shaft and coupled to the first end of the cable, the first rotatable member having a protrusion; and
a second rotatable member rotatable about the shaft and coupled to the second end of the cable, the second rotatable member having a slot to allow the protrusion to pass through the second rotatable member; and
a selector plate rotatable about the shaft and comprising a stop; and
an exercise arm to rotate the selector plate in first and second directions, wherein the stop is to engage the protrusion to rotate the first rotatable member when the exercise arm is rotated in the first direction.
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Abstract
Bidirectional resistance apparatus for exercise equipment are disclosed. An example exercise apparatus comprises a resistance source coupled to a cable between first and second ends of the cable, a rotational resistance mechanism coupled to the first and second ends of the cable, and an exercise arm coupled to the rotational resistance mechanism to rotate in first and second directions, the rotational resistance mechanism to apply a substantially constant resistance to the exercise arm when the exercise arm is rotated in the first and second directions.
51 Citations
25 Claims
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1. An exercise apparatus comprising:
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a resistance source coupled to a cable between first and second ends of the cable; a rotational resistance mechanism comprising; a shaft; a first rotatable member rotatable about the shaft and coupled to the first end of the cable, the first rotatable member having a protrusion; and a second rotatable member rotatable about the shaft and coupled to the second end of the cable, the second rotatable member having a slot to allow the protrusion to pass through the second rotatable member; and a selector plate rotatable about the shaft and comprising a stop; and an exercise arm to rotate the selector plate in first and second directions, wherein the stop is to engage the protrusion to rotate the first rotatable member when the exercise arm is rotated in the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A bidirectional resistance apparatus for use with an exercise machine, the bidirectional resistance apparatus comprising:
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a cable; a first pulley rotatable about an axis, a first end of the cable attached to the first pulley at a first side of the bidirectional resistance apparatus; a second pulley rotatable about the axis, a second end of the cable attached to the second pulley at a second side of the bidirectional resistance apparatus; an exercise arm rotatable about the axis to rotate the first pulley when the exercise arm is rotated in a first direction and to rotate the second pulley when the exercise arm is rotated in a second direction; and a selector plate comprising a first stop, wherein the exercise arm comprises a selector pin to cause the selector plate to rotate about the axis when the exercise arm is rotated, and wherein the first pulley comprises a first protrusion, the first stop to act against the first protrusion to rotate the first pulley when the exercise arm is rotated in the first direction. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification