DUMBBELL

• US 20100304939A1
• Filed: 11/27/2008
• Published: 12/02/2010
• Est. Priority Date: 11/29/2007
• Status: Active Grant

• Current Assignee: Personality Gym AB
• Original Assignee: Tomas Svenberg
• Inventors: Svenberg, Tomas, Höglund, Per
• Granted Patent: US 8,715,143 B2
• Time in Patent Office: Days
• US Class Current: 482/108
• CPC Class Codes: A63B 21/00058 Mechanical means for varying the resistance A63B21/06 takes precedence
• CPC Class Codes: A63B 21/00065 by increasing or reducing the number of resistance units
• CPC Class Codes: A63B 21/062 including guide for vertical or non-vertical weights or array of weights to move against gravity forces
• CPC Class Codes: A63B 21/0628 for vertical array of weights
• CPC Class Codes: A63B 21/063 Weight selecting means
• CPC Class Codes: A63B 21/072 Dumb-bells, bar-bells or the like , e.g. weight discs having an integral peripheral handle
• CPC Class Codes: A63B 21/0728 with means for fixing weights on bars, i.e. fixing olympic discs or bumper plates on bar-bells or dumb-bells
• CPC Class Codes: A63B 21/075 with variable weights , e.g. weight systems with weight selecting means for bar-bells or dumb-bells

Abstract

A dumbbell with a selectable number of weight disks includes a handle with pins projectable in opposing directions, a base assembly for accommodating two sets of weight disks standing upright, and having through-going openings. Neighbouring weight disks have mutually cooperating connecting arrangements which axially interconnect the weight disks but which permit radial separation. The projection lengths of the pins are stepwise selectable in order thereby to permit selection of the number of weight disks carried on the handle. The handle has, in opposing ends, connecting arrangements for interconnecting with the connecting arrangements of the innermost weight disks in the base assembly. Further, the space between the connecting arrangements of the handle is free through 360° about the handle throughout its entire length, the openings of the weight disks being centrally located.

Claims

1. A dumbbell with a base assembly, where, at each end of a handle, there are securable a selectable number of weight disks standing upright in the base assembly, the weight disks having through-going openings which are disposed in alignment with one another, when the weight disks stand in the base assembly, and the weight disks have mutually cooperating connecting means which are disposed, in the axial direction of the dumbbell, to interconnect neighbouring weight disks, but in a radial direction to permit separation of one weight disk from a neighbouring weight disk, and the handle having pin members projectable in opposing axial directions and insertable into the weight disks, whereby, by selection of the axial projection lengths of the pin members, the number of weight disks on the dumbbell is selectable, wherein the handle has, in opposing ends, connecting means for cooperation with the connecting means on the mutually most proximally located weight disks in the base assembly;

and that the space between the connecting means is free through 360°

about the handle throughout the entire length thereof; and

that the weight disks have the through-going openings centrally located.

2. The dumbbell as claimed in claim 1, wherein the handle has, at its opposing ends, housings which have the connecting means of the handle at their sides facing away from one another;

that the base assembly has seats for accommodating the housings; and

that the housings and the seats have means for positional determination of the handle in a direction of rotation about the longitudinal axis of the handle.

3. The dumbbell as claimed in claim 2, wherein the housings are substantially cylindrical and coaxial with the handle.

4. The dumbbell as claimed in claim 1, wherein the pin members are substantially coaxial with one another and projectable by means of a screw device by rotation of a rotary portion at the central region of the handle in relation to the housings of the handle.

5. The dumbbell as claimed in claim 1, wherein the connecting means of the weight disks, in the permitted, radial displacement direction, are of such an extent that they are located on both sides of the central openings of the weight disks.

6. The dumbbell as claimed in claim 1, wherein the weight disks have a closed and substantially circular peripheral edge.

7. The dumbbell as claimed in claim 6, wherein the weight disks and the base assembly are provided with means for positional determination of the weight disks in a direction of rotation about a common longitudinal axis for the openings in a number of weight disks standing upright in the base assembly in relation to the base assembly.

8. The dumbbell as claimed in claim 1, wherein the permitted radial displacement direction of the connecting means coincides for all weight disks and the handle.

9. The dumbbell as claimed in claim 1, wherein the pin members—

are substantially coaxial with one another and projectable by means of a screw device by rotation of a rotary portion at the central region of the handle in relation to the housings—

of the handle.

10. The dumbbell as claimed in claim 2, wherein the connecting means of the weight disks, in the permitted, radial displacement direction, are of such an extent that they are located on both sides of the central openings of the weight disks.

11. The dumbbell as claimed in claim 2, wherein the weight disks—

have a closed and substantially circular peripheral edge.

12. The dumbbell as claimed in claim 11, wherein the weight disks and the base assembly are provided with means for positional determination of the weight disks in a direction of rotation about a common longitudinal axis for the openings—

in a number of weight disks standing upright in the base assembly in relation to the base assembly.

13. The dumbbell as claimed in claim 2, wherein the permitted radial displacement direction of the connecting means coincides for all weight disks and the handle.