| 摘要 |
An exercise bar device comprises a first hollow bar, a second hollow bar, a massage sleeve extending proximally from the second hollow bar, a first foam tube enclosing the first hollow bar, a second foam tube enclosing the second hollow bar, a switch cover covering a distal end of the second hollow bar, a hexagonal rod inserted in the first hollow bar, a brake ring and a friction disk disposed on the hexagonal rod, a nut engaging with an outer thread of a threaded end of the hexagonal rod, a large number of protrusions disposed on an outer periphery of the massage sleeve, an inner sleeve disposed in the massage sleeve and connected to the second hollow bar, a spacing defined between the second hollow bar and the massage sleeve, a motor disposed in the inner sleeve, and a coiled spring and an elastic plate disposed in the spacing. The first hollow bar has an end disk. The end disk couples with the elastic plate. The rod is rotated to increase or decrease the torsion resistance between the hollow bars.
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