Selectorized dumbbell
DCFirst Claim
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1. An exercise dumbbell system, comprising:
- a base assembly including a handle having a longitudinal axis;
left and right weight plates disposed on opposite sides of said base assembly;
a first means, connected to said base assembly, for securing said weight plates against axial movement relative to said base assembly;
a second means, connected to said base assembly, for selectively securing a desired number of said weight plates against radial movement relative to said base assembly while said second means remains connected to said base assembly; and
a knob rotatably mounted on said base assembly and connected to said second means in such a manner that said second means engages said desired number of weight plates in response to rotation of said knob.
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Abstract
Weights are disposed on opposite sides of a base member, and selector rods are selectively moved into engagement with the desired number of weights on each side of the base member. Upon rotation of a knob, the selector rods move in opposite directions to engage the desired number of weights.
168 Citations
20 Claims
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1. An exercise dumbbell system, comprising:
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a base assembly including a handle having a longitudinal axis;
left and right weight plates disposed on opposite sides of said base assembly;
a first means, connected to said base assembly, for securing said weight plates against axial movement relative to said base assembly;
a second means, connected to said base assembly, for selectively securing a desired number of said weight plates against radial movement relative to said base assembly while said second means remains connected to said base assembly; and
a knob rotatably mounted on said base assembly and connected to said second means in such a manner that said second means engages said desired number of weight plates in response to rotation of said knob. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A first weight plate and a second weight plate in combination with a dumbbell handle having axially spaced dividers, each weight plate comprising:
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a main body having a mean thickness bounded by parallel flat surfaces, wherein the body is interrupted by an upwardly opening slot which extends parallel to the mean thickness;
shoulders protruding axially outward from at least one of the flat surfaces, along opposite edges of the body, wherein when the first weight plate is positioned adjacent weight plate with respective slots aligned, an upwardly opening cavity is defined between the body of the first weight plate, the body of the second weight plate, and the shoulders disposed therebetween, and the cavity is sized and configured to guide one of the dividers into a desired position between the first weight plate and the second weight plate. - View Dependent Claims (19, 20)
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Specification