Yieldable restraining members for barbell weights
OwnerCharles L. Metzinventor
Life of this patent
Estimating the term…
Abstract
Collars are provided for yieldingly restraining weights from leaving the ends of a barbell. Each collar surrounds the barbell shaft and contains a set of grooves which receive snugly O-rings made of resilient material. In the unstressed condition of each O-ring, the interior diameter is less than that of the barbell shaft. Preferably, the grooves have a generally square or trapezoidal cross-section, with a slightly widened mouth. A part of the collar can be gripped with the fingers to remove friction-platelock collars from the barbell.
Claims5
The combination of a barbell shaft, a weight and apparatus for yieldingly securing the weight against falling from an end of said barbell shaft, said apparatus comprising:
- a set of O-rings of resilient material having in their unstressed condition an interior diameter less than that of the barbell shaft, and
- a friction-platelock collar member adapted to surround said barbell shaft and having therein a bore for the passage of said barbell shaft therethrough, said friction-platelock member having therein a set of spaced annular grooves which are of such dimensions as to receive snugly said O-rings when they are in an as-stressed condition from having been caused to surround said shaft of said barbell.
In a barbell including a weight removably received on a barbell shaft, the combination thereof and an apparatus for yieldingly securing the weight against falling from an end of the barbell shaft, said apparatus comprising:
- at least one endless annular resilient member having in its unstressed condition an interior opening less than that of the cross-section of the barbell shaft, and
- a friction-platelock collar member adapted to surround said barbell shaft and having therein a bore for the passage of said barbell shaft therethrough, said friction-platelock member having therein at least one groove which is of such dimensions as to retain said member of resilient material in an as-stressed condition when engaged with said shaft of said barbell.
Dependencies are inferred from the claim text.