Dumbbell with rounded rims
AssigneeNIKE, Inc.
InventorsGabrielle A. Rudd, Andrew P. Conant
Life of this patent
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Abstract
The present disclosure includes an article of exercise equipment, such as, to a dumbbell having an ergonomic design. In some embodiments, the dumbbell may comprise an exposed metal handle having a central longitudinal axis extending through the handle; two heads located at opposite ends of the handle, with each of the heads including an outer end face and an inner end face positioned closer to the handle than the outer end face, and a plurality of side faces disposed between the outer end face and the inner end face; and a plurality of rims. Each of the plurality of side faces may face radially outward away from the central longitudinal axis, and each rim of the plurality of rims may include a fillet.
Claims19
A dumbbell comprising:
- an exposed metal handle having a central longitudinal axis extending through the handle;
- and
- two heads located at opposite ends of the handle, each of the heads including:
- an outer end face;
- an inner end face positioned closer to the handle than the outer end face;
- a plurality of side faces disposed between the outer end face and the inner end face, each of the plurality of side faces facing radially outward away from the central longitudinal axis;
- and
- a plurality of rims, wherein one of the plurality of rims is disposed at each interface of:
- a) the outer end face and each of the plurality of side faces of a given head;
- b) the inner end face and each of the plurality of side faces of a given head;
- and
- c) circumferentially adjacent side faces,
- wherein each rim of the plurality of rims includes a fillet, and
- wherein, an arc length of each rim of the plurality of rims is from about 3-15 degrees, wherein the arc length is measured about a polar axis, wherein the polar axis has a center point along a central longitudinal axis extending through the handle and the two heads.
A dumbbell comprising:
- an exposed metal handle having a central longitudinal axis extending through the handle;
- and
- two heads located at opposite ends of the handle, each of the heads including:
- an outer end face,
- an inner end face positioned closer to the handle than the outer end face, and
- a plurality of side faces disposed between the outer end face and the inner end face forming a plurality of interfaces, each of the plurality of side faces facing radially outward away from the central longitudinal axis,
- wherein each of the following interfaces within each of the two heads includes a rounded edge:
- a) the outer end face and each of the plurality of side faces of a given head;
- b) the inner end face and each of the plurality of side faces of a given head;
- and
- c) circumferentially adjacent side faces, and
- wherein, an arc length of each of the interfaces within each of the two heads is from 3-15 degrees, wherein the arc length is measured about a polar axis, wherein the polar axis has a center point along a central longitudinal axis extending through the exposed metal handle and the two heads.
A dumbbell comprising:
- an exposed metal handle having a central longitudinal axis extending through the handle;
- and
- two rubber-coated heads located at opposite ends of the handle, wherein each head includes six outer side faces extending around a circumference of the given head, and no interface between circumferentially adjacent faces has a straight edge or straight corner,
- wherein the two rubber-coated heads each include at least one rim disposed between at least two circumferentially adjacent faces, and
- wherein the at least one rim has an arc length from 3-15 degrees, wherein the arc length is measured about a polar axis, and wherein the polar axis has a center point along a central longitudinal axis extending through the handle and the two heads.
Dependencies are inferred from the claim text.