Barbell system
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Life of this patent
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Abstract
A barbell system includes a grip having an axial length and an axial bore with a diameter and planar end faces and a contoured exterior surface. The contoured exterior surface has a maximum diameter at its radial central plane and at its ends and a minimum diameter at its radial intermediate planes symmetrically positioned between the central plane and the ends. The exterior surface is formed with three circumferentially positioned regions around the periphery to form flat ovals. The central ovals are all located in three planes 120 degrees from each other with a major axis parallel with the axis of the grip and shaft and a minor axis transverse to the axis of the grip and shaft.
Claims7
A new and improved barbell system with improved gripability comprising, in combination:
- a cylindrical shaft having a circular cross section with a diameter of about 3/4 inch and having an axial length of about 91/4 inches, the shaft having end regions of about 2 inches each and a central region of about 51/4 inches, the end regions being provided with threads thereon;
- a pair of generally cylindrical weights, each having a central bore of about 3/4 inch and an axial length of about 1 inch adapted to be received and supported on the end regions of the cylindrical shaft with threaded collars to releasably retain the weights to the shaft, each of the weights being formed with a periphery having a plurality of planar faces symmetrically oriented there around;
- and
- a grip fabricated in one piece of an elastomeric material, plastic or rubber, natural or synthetic, or blends thereof, having an axial length of about 51/4 inches and an axial bore with a diameter of about 3/4 inch positioned over the central extent of the cylindrical shaft, the grip having planar end faces adapted to contact and position the weights on the shaft and a contoured exterior surface, the contoured exterior surface having a maximum diameter of about 11/2 inches at its radial central plane and at its ends with a minimum diameter of 13/16 inches at its radial intermediate planes symmetrically positioned between the central plane and the ends, the exterior surface being formed with three circumferentially positioned regions around the periphery to form three flat central ovals and six flat end semi-ovals, the central ovals all being located in three planes 120 degrees from each other with a 23/8 inch long major axis parallel with the axis of the grip and shaft and a 11/16 inch long minor axis transverse thereto and with the semi-ovals being formed with two per set coplanar with the three central ovals at the ends of the grip each having an axial major axis of about 1/2 inch in length and a transverse minor axis of about 3/4 inch in length, the planar end faces of the grip having a cross-sectional size and shape as the cross-sectional size and share at the axial center of the strip.
A grip for use with a barbell system having an axial length and a bore and planar end faces and a contoured exterior surface, the contoured exterior surface having a maximum circumference at its radial central plane and at its ends with a minimum circumference at its radial intermediate planes symmetrically positioned between the central plane and the ends, the exterior surface being formed with three circumferentially positioned regions around the periphery to form three flat central ovals and six flat semi-cylindrical end ovals, the central ovals and end ovals all being located in three planes 120 degrees from each other with a major axis parallel with the axis of the grip and shaft and a minor axis transverse thereto, the planar end faces of the grip having a cross-sectional size and share as the cross-sectional size and shape at the axial center of the grip.
Dependencies are inferred from the claim text.