Weight-lifting bar

摘要

A weight-lifting bar is provided. The weight-lifting bar includes a tubular member having a first end portion and a second end portion. The tubular member further includes an internal region. The weight-lifting bar further includes a plurality of balls disposed in the internal region of the tubular member that at least partially fills the internal region. The weight-lifting bar further includes a first endcap member configured to be coupled to the first end portion, and a second endcap member configured to be coupled to the second end portion.

主权项

1. A weight-lifting bar, comprising:
a metal tubular member having a first internal region; a plastic tubular member having a first end portion and a second end portion, the plastic tubular member further having a second internal region, the plastic tubular member being disposed in the first internal region, a length of the metal tubular member being equal to a length of the plastic tubular member; a first layer coupled to an exterior surface of the metal tubular member; a plurality of balls disposed in the second internal region of the plastic tubular member that at least partially fills the second internal region; a first endcap member configured to cover an opening in the first end portion, the first endcap member having a first body portion and a first cap portion, the first body portion of the first endcap member being disposed and press-fit into the first end portion of the plastic tubular member within the second internal region, the first body portion of the first endcap member being constructed of a rubber compound, the first cap portion of the first endcap member contacting an end of the first end portion and a first end of the metal tubular member; and a second endcap member configured to cover an opening in the second end portion.