Dumbbell

• US 8,715,143 B2
• Filed: 11/27/2008
• Issued: 05/06/2014
• Est. Priority Date: 11/29/2007
• Status: Active Grant

• Current Assignee: Personality Gym AB
• Original Assignee: Tomas Svenberg
• Inventors: Svenberg, Tomas, Hglund, Per
• Primary Examiner(s): Thanh, Loan H
• Assistant Examiner(s): GANESAN, SUNDHARA M
• Application Number:
  US12/744,972
• Publication Number:
  US 20100304939A1
• Time in Patent Office: 1,986 Days
• Field of Search: 482/50, 482/92, 482/93, 482/94, 482/97, 482/98, 482/104, 482/105, 482/106, 482/107, 482/108, 482/109, 482/148, 482/908, D21/681, 211/85.7
• 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. Neighboring 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, comprising

the base assembly,

a plurality of weight discs adapted to stand upright in the base assembly,

the dumbbell, the dumbbell comprising a handle having opposing ends, wherein, at each end of the handle, a selectable number of the weight disks standing upright in the base assembly are securable to the handle,

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, in an axial direction of the dumbbell, interconnect neighboring weight disks so that neighboring weight disks are not axially displaceable relative to each other, but in a radial direction permit separation of one weight disk from a neighboring weight disk, wherein the weight disks have a closed peripheral edge entirely surrounding the through-going openings, and

the handle having pin members projectable in opposing axial directions and insertable into the through-going openings in the weight disks,

wherein, by selection of axial projection lengths of the pin members, a number of weight disks on the dumbbell is selectable from zero up to a desired number of weight disks, wherein the handle has, in the opposing ends, handle connecting means for cooperation with the connecting, means on the mutually most proximally located weight disks in the base assembly, a space between the handle connecting means is clear of structure except for the handle, and the through-going openings are centrally located on the weight disks, and wherein the handle has a diameter that is less than a diameter of any weight disc of the plurality of weight discs.

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 sides of the housings and facing away from one another;

the base assembly has seats for accommodating the housings, and 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 3, 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 a central region of the handle in relation to the housings of the handle.

5. The dumbbell as claimed in claim 2, 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 a central region of the handle in relation to the housings of the handle.

6. The dumbbell as claimed in claim 2, wherein the connecting means of the weight disks are located on both sides of the openings of the weight disks.

7. The dumbbell as claimed in claim 2, wherein the peripheral edge of the weight disks is substantially circular peripheral edge.

8. The dumbbell as claimed in claim 7, 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 of the openings in the plurality of weight disks when the plurality of weigh disks stand upright in the base assembly.

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

10. The dumbbell as claimed in claim 1, wherein the connecting means of the weight disks are located on both sides of the openings of the weight disks.

11. The dumbbell as claimed in claim 1, wherein the peripheral edge of the weight disks is 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 of the openings in the plurality of weight disks when the plurality of weight disks stand upright in the base assembly.

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

14. The dumbbell as claimed in claim 1, wherein the base assembly has seats for supporting the handle.

15. The dumbbell as claimed in claim 1, wherein the base assembly has structures that engage with the handle.