| 摘要 |
A barbell assembly includes a plurality of magnetic weights selectively positioned on opposite end portions of an axially elongated bar. A single weight or group of weights on each end of the bar is retained between an inner collar mounted in fixed position on the bar and an outer collar releasably secured to the bar by a locking device. Each outer collar is magnetically coupled to an associated weight or group of weights and aids in positioning the weights so that no axial play occurs between the weights and the collars. Each inner collar may also be magnetically coupled to the weight or weights associated with it. Alternatively, both the inner and outer collars may be magnetically coupled to the weights and to each other and to the supporting bar.
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