Handheld exercise device and method for personal fitness training

Abstract

A handheld exercise device includes an elongated handle and first and second stability heads. The stability heads are located at opposite ends of the handle, and each has a generally dome-shaped top side and generally planar underside. An arrangement of surface-engaging rollers projects from the planar underside of each stability head. The roller arrangement includes first and second inline rollers substantially aligned with a longitudinal axis of the handle, and a third roller laterally offset from the longitudinal axis of the handle.

Claims

1. A handheld exercise device comprising: an elongated handle; first and second stability heads located at opposite ends of said handle, each stability head having a generally dome-shaped top side and generally planar underside, and wherein said handle defines a longitudinal axis extending through said first and second stability heads; a roller arrangement of surface-engaging rollers projecting from the planar underside of each stability head, and wherein said roller arrangement comprises first and second inline rollers aligned co-linear with the longitudinal axis of said handle and a third roller laterally offset from the longitudinal axis of said handle.

2. The handheld exercise device according to claim 1, and comprising an ergonomic swivel grip applied to said handle and adapted for being gripped by a user.

3. The handheld exercise device according to claim 2, and comprising at least one roller bearing located between said swivel grip and said handle.

4. The handheld exercise device according to claim 3, wherein said roller bearing comprises a needle roller bearing.

5. The handheld exercise device according to claim 4, and comprising first and second spaced apart needle roller bearings located between said swivel grip and said handle.

6. The handheld exercise device according to claim 2, wherein said swivel grip is fabricated of synthetic rubber.

7. The handheld exercise device according to claim 6, wherein said synthetic rubber comprises neoprene.

8. The handheld exercise device according to claim 1, wherein the underside of each stability head is annular.

9. The handheld exercise device according to claim 8, wherein a diameter of the underside of each stability head is between 10-12 cm.

10. The handheld exercise device according to claim 1, wherein said first, second and third rollers are equally spaced apart from one another and reside at respective points of a notional triangle.

11. A handheld exercise device comprising: an elongated handle; first and second stability heads located at opposite ends of said handle, each stability head having a generally dome-shaped top side and generally planar underside, and wherein said handle defines a longitudinal axis extending through said first and second stability heads; a roller arrangement of surface engaging rollers projecting from the planar underside of each stability head, and wherein said arrangement of surface engaging rollers consists of first and second inline rollers aligned co-linear with the longitudinal axis of said handle and a third roller laterally offset from the longitudinal axis of said handle.

12. The handheld exercise device according to claim 11, and comprising an ergonomic swivel grip applied to said handle and adapted for being gripped by a user.

13. The handheld exercise device according to claim 12, and comprising at least one roller bearing located between said swivel grip and said handle.

14. The handheld exercise device according to claim 13, wherein said roller bearing comprises a needle roller bearing.

15. The handheld exercise device according to claim 14, and comprising first and second spaced apart needle roller bearings located between said swivel grip and said handle.

16. The handheld exercise device according to claim 12, wherein said swivel grip is fabricated of synthetic rubber.

17. The handheld exercise device according to claim 16, wherein said synthetic rubber comprises neoprene.

18. The handheld exercise device according to claim 11, wherein the underside of each stability head is annular.

19. The handheld exercise device according to claim 11, wherein said first, second and third rollers are equally spaced apart from one another and reside at respective points of a notional triangle.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Exemplary embodiments of the present disclosure will hereinafter be described in conjunction with the following drawing figures, wherein like numerals denote like elements, and wherein:

(2) FIGS. 1 and 2 are perspective views of the present handheld exercise device according to one exemplary embodiment;

(3) FIG. 3 is a side view of the exemplary exercise device;

(4) FIG. 4 is a bottom (underside) view of the exemplary exercise device;

(5) FIG. 5 is a view demonstrating use of the exemplary exercise device while performed a floor exercise;

(6) FIG. 6 is an exploded perspective view of the exemplary exercise device;

(7) FIG. 7 is a cross-sectional view of the exemplary exercise device taken substantially along line 7-7 of FIG. 4;

(8) FIGS. 8 and 9 are perspective views of an alternative handheld exercise device of the present disclosure; and

(9) FIG. 10 is a view demonstrating use of the alternative exercise device while performed a floor exercise.

DESCRIPTION OF EXEMPLARY EMBODIMENTS AND BEST MODE

(10) The present invention is described more fully hereinafter with reference to the accompanying drawings, in which one or more exemplary embodiments of the invention are shown. Like numbers used herein refer to like elements throughout. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be operative, enabling, and complete. Accordingly, the particular arrangements disclosed are meant to be illustrative only and not limiting as to the scope of the invention, and any and all equivalents thereof. Moreover, many embodiments, such as adaptations, variations, modifications, and equivalent arrangements, will be implicitly disclosed by the embodiments described herein and fall within the scope of the present invention.

(11) Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. Unless otherwise expressly defined herein, such terms are intended to be given their broad ordinary and customary meaning not inconsistent with that applicable in the relevant industry and without restriction to any specific embodiment hereinafter described. As used herein, the article “a” is intended to include one or more items. Where only one item is intended, the term “one”, “single”, or similar language is used. When used herein to join a list of items, the term “or” denotes at least one of the items, but does not exclude a plurality of items of the list.

(12) For exemplary methods or processes of the invention, the sequence and/or arrangement of steps described herein are illustrative and not restrictive. Accordingly, it should be understood that, although steps of various processes or methods may be shown and described as being in a sequence or temporal arrangement, the steps of any such processes or methods are not limited to being carried out in any particular sequence or arrangement, absent an indication otherwise. Indeed, the steps in such processes or methods generally may be carried out in various different sequences and arrangements while still falling within the scope of the present invention.

(13) Additionally, any references to advantages, benefits, unexpected results, or operability of the present invention are not intended as an affirmation that the invention has been previously reduced to practice or that any testing has been performed. Likewise, unless stated otherwise, use of verbs in the past tense (present perfect or preterit) is not intended to indicate or imply that the invention has been previously reduced to practice or that any testing has been performed.

(14) Referring now specifically to the drawings, a handheld exercise device according to one exemplary embodiment of the present disclosure is illustrated in FIGS. 1-4 and shown generally at broad reference numeral 10. The exemplary exercise device 10 resembles a conventional dumbbell, and incorporates a short elongated handle 11 and first and second weighted stability heads 12, 14. The exercise device 10 may be constructed in any number of overall weight sizes including 2.5 lbs, 5 lbs, 10 lbs and others. The stability heads 12, 14 are located at opposite ends of the handle 11, and each has a generally dome-shaped top 15 and generally planar underside 16. The dome-shaped top 15 of each stability head 12, 14 may be fabricated of a molded solid neoprene rubber or other such material. As described further below, an arrangement of surface-engaging rollers 18 projects from the planar underside 16 of each stability head 12, 14 and functions to enable the exercise device 10 to freely roll atop a floor or other flat surface.

(15) An ergonomic rubber swivel grip 21 may be applied to the handle 11 and may extend substantially from one stability head 12 to the other head 14. The swivel grip 21 combines with the rollers 18 of each stability head 12, 14 to create substantial imbalance when the device 10 is held against the floor surface by an exercising user in a prone position—as demonstrated in FIG. 5. This imbalance functions to strengthen and tone the abdominal muscles, back and shoulders, while also stretching out the torso and improving flexibility. Users may exercise with a device 10 held in both hands, as shown in FIG. 5, or with the device 10 in a single hand, or with multiple devices 10 held in one or both hands and positioned underneath one or both feet (toes or back of heels). In other exemplary exercises, users may place a hand on one or both of the dome-shaped tops 15 of the stability heads 12, 14 of a single exercise device 10 to perform a full-body extension or other various body movements and stretches.

(16) Referring to FIGS. 4, 6 and 7, each stability head 12, 14 of the exemplary device 10 further comprises a rigid cylindrical housing 25 integrally formed with the dome-shaped top 15 and defining equally-spaced roller openings 26 in the planar underside 16 of the head 12,14. In the exemplary embodiment, the planar underside 16 is annular and has a diameter of between 10-12 cm. Roller retainers 28 are mounted inside the housing 25 and function to carry and locate the rollers 18 at respective openings 26 formed with the underside 16. The rollers 18 of each stability head 12, 14 are configured to freely roll within the retainers 28 as the exercise device 10 is moved over the floor surface. As best shown in FIG. 4, the arrangement of rollers 18 in each stability head 12, 14 includes first and second inline rollers 18A, 18B substantially aligned with a longitudinal axis “A” of the handle 11, and a third roller 18C laterally offset from the longitudinal axis “A” of the handle 11. In an exemplary embodiment, the first, second and third rollers 18A, 18B, 18C are equally spaced apart from one another and reside at respective points of a notional equilateral triangle “T”.

(17) The ergonomic swivel grip 21 of the exemplary exercise device 10 is best shown in FIGS. 6 and 7. The swivel grip 21 is applied to the handle 11 and freely rotates about the longitudinal axis “A” (FIG. 4), such that the swivel motion of the handle 11 when gripped by the user combines with the rollers 18 to increase imbalance in various exercise movements. In the exemplary embodiment, first and second spaced apart needle roller bearings 31, 32 are located between the swivel grip 21 and handle 11. The swivel grip 21 may be fabricated of any suitable material including a durable synthetic rubber (e.g., neoprene) or the like.

(18) A further exemplary embodiment of the present disclosure is illustrated in FIGS. 8-10. The handheld exercise device 50 comprises a single stability head 52 having a generally dome-shaped top 55 and generally planar underside 56. The dome-shaped top 55 may be fabricated of a molded solid neoprene rubber or other such material, as previously described. An arrangement of surface-engaging rollers 58 projects from the planar underside 56 of the stability head 52 and functions to enable the exercise device 50 to freely roll atop a floor surface. The exemplary rollers 58 may be spaced-apart, housed and retained as previously described. An attached flexible and adjustable strap 59 is applied to the exemplary stability head 52 to releasably secure the exercise device 50 to the hand of the user while exercising—as demonstrated in FIG. 10.

(19) For the purposes of describing and defining the present invention it is noted that the use of relative terms, such as “substantially”, “generally”, “approximately”, and the like, are utilized herein to represent an inherent degree of uncertainty that may be attributed to any quantitative comparison, value, measurement, or other representation. These terms are also utilized herein to represent the degree by which a quantitative representation may vary from a stated reference without resulting in a change in the basic function of the subject matter at issue.

(20) Exemplary embodiments of the present invention are described above. No element, act, or instruction used in this description should be construed as important, necessary, critical, or essential to the invention unless explicitly described as such. Although only a few of the exemplary embodiments have been described in detail herein, those skilled in the art will readily appreciate that many modifications are possible in these exemplary embodiments without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention as defined in the appended claims.

(21) In the claims, any means-plus-function clauses are intended to cover the structures described herein as performing the recited function and not only structural equivalents, but also equivalent structures. Thus, although a nail and a screw may not be structural equivalents in that a nail employs a cylindrical surface to secure wooden parts together, whereas a screw employs a helical surface, in the environment of fastening wooden parts, a nail and a screw may be equivalent structures. Unless the exact language “means for” (performing a particular function or step) is recited in the claims, a construction under 35 U.S.C. § 112(f) [or 6th paragraph/pre-AIA] is not intended. Additionally, it is not intended that the scope of patent protection afforded the present invention be defined by reading into any claim a limitation found herein that does not explicitly appear in the claim itself.