Exercise resistance methods and apparatus
First Claim
Patent Images
1. A method of adjusting resistance to exercise involving a dumbbell, comprising the steps of:
- providing a weight supporting member having opposite end portions and an intermediate member extending therebetween;
providing a plurality of weight plates in respective stable positions in alignment with the opposite end portions of the weight supporting member;
movably mounting first and second selector rods within the intermediate member;
selectively moving the selector rods in opposite directions to engage respective weight plates at respective end portions of the weight supporting member; and
lifting the weight supporting member upward together with a first subset of the weight plates engaged by the selector rods, while leaving behind a complementary, second subset of the weight plates in their respective stable positions.
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Accused Products
Abstract
First weights are disposed beneath a base member, and a selector rod is rotated into engagement with a desired number of the first weights. Second weights are disposed on opposite sides of a base member, and selector rods are selectively moved into engagement with the desired number of first weights. Various combinations of these arrangements may be used to provide adjustable resistance to exercise.
90 Citations
23 Claims
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1. A method of adjusting resistance to exercise involving a dumbbell, comprising the steps of:
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providing a weight supporting member having opposite end portions and an intermediate member extending therebetween; providing a plurality of weight plates in respective stable positions in alignment with the opposite end portions of the weight supporting member; movably mounting first and second selector rods within the intermediate member; selectively moving the selector rods in opposite directions to engage respective weight plates at respective end portions of the weight supporting member; and lifting the weight supporting member upward together with a first subset of the weight plates engaged by the selector rods, while leaving behind a complementary, second subset of the weight plates in their respective stable positions. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of adjusting resistance to exercise involving a dumbbell, comprising the steps of:
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providing a weight supporting member having opposite end portions and at least one intermediate member extending therebetween, and a handle that extends between the opposite end portions at a distance apart from the intermediate member; providing a plurality of weight plates proximate respective opposite end portions of the weight supporting member; movably mounting first and second selector rods within the at least one intermediate member; and selectively moving the selector rods in opposite directions to engage respective weight plates proximate respective end portions of the weight supporting member. - View Dependent Claims (8, 9, 10)
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11. A method of adjusting resistance to exercise involving a dumbbell, comprising the steps of:
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providing a weight supporting member having opposite end portions and at least one intermediate member extending therebetween; providing a plurality of weights having respective bars rigidly interconnected between respective first end and second end weight plates aligned with respective opposite end portions of the weight supporting member; movably mounting at least one selector rod on the weight supporting member; rotatably mounting at least one knob on the weight supporting member; and selectively rotating the at least one knob to move the at least one selector rod into engagement with the weights. - View Dependent Claims (12, 13, 14)
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15. A method of adjusting resistance to exercise involving a dumbbell, comprising the steps of:
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providing a weight supporting member having opposite end portions and at least one intermediate member extending therebetween; providing a plurality of weight plates proximate respective opposite end portions of the weight supporting member; movably mounting at least one selector rod on the weight supporting member; and rotatably mounting at least one gear on the weight supporting member, and linking rotation of the gear to movement of the at least one selector rod. - View Dependent Claims (16, 17, 18, 19)
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20. A method of adjusting resistance to exercise involving a dumbbell, comprising the steps of:
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providing a weight supporting member having opposite end portions and at least one intermediate member extending therebetween, and a handle extending between the opposite end portions at a distance apart from the at least one intermediate member; providing a plurality of weight plates proximate respective opposite end portions of the weight supporting member; movably mounting at least one selector rod within the at least one intermediate member; providing at least one user operated member on an external portion of the weight support member; linking the at least one user operated member to the at least one selector rod; and operating the at least one user operated member to selectively move the at least one selector rod into engagement with the weight plates at least one end of the weight supporting member. - View Dependent Claims (21, 22, 23)
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Specification