Adjustable dumbbell methods and apparatus

• US 6,872,173 B2
• Filed: 04/03/2002
• Issued: 03/29/2005
• Est. Priority Date: 02/06/1998
• Status: Expired due to Fees

• Current Assignee: Core Health & Fitness LLC
• Original Assignee: Mark Krull
• Inventors: Krull, Mark A.
• Primary Examiner(s): Yu, Justine R.
• Assistant Examiner(s): Hwang, Victor K.
• Application Number:
  US10/116,344
• Publication Number:
  US 20020115539A1
• Time in Patent Office: 1,091 Days
• Field of Search: 482/104, 482106-108, 482/93, 482/94, 482/97, 482/98
• US Class Current: 482/108
• CPC Class Codes: A63B 21/00065 by increasing or reducing the number of resistance units
• 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

Abstract

An exercise dumbbell includes a handle and weights that are selectively latched to opposite ends of the handle. A base is provided to support the handle and the weights when not in use.

Claims

1. A method of facilitating weight adjustment on an exercise dumbbell, comprising the steps of:

providing a handle assembly having a first plate, a second plate, a handle interconnected between the first plate and the second plate, a first bar projecting outward from the first plate in a first direction away from the handle, and a second bar projecting outward from the second plate in a second, opposite direction away from the handle;

providing a first weight that is configured to be secured in place between the first plate and a distal end of the first bar with the first bar occupying a downwardly opening slot in the first weight;

providing a second weight that is configured to be secured in place between the second plate and a distal end of the second bar with the second bar occupying a downwardly opening slot in the second weight;

providing a base having an upwardly facing support surface configured to support the handle assembly in a desired handle orientation with each said plate having a lower edge resting in a stable orientation on the support surface, and having a discrete portion configured to support each said weight independent of the handle assembly and in a desired weight orientation with each said slot opening downward; and

requiring each said weight to be lifted upward from the bass for movement between the handle assembly and the discrete portion of the base.

2. The method of claim 1, further comprising the steps of:

lifting the first weight upward from the discrete portion of the base, and holding the first weight so that the slot in the first weight opens downward toward the first bar;

sliding the first weight downward onto an exposed and uninterrupted section of the first bar that is long enough to accommodate both the first weight and another said first weight, and releasably securing the first weight against movement relative to the handle assembly with the first bar occupying the slot in the first weight;

lifting the second weight upward from the discrete portion of the base, and holding the second weight so that the slot in the second weight opens downward toward the second bar; and

sliding the second weight downward onto an exposed and uninterrupted section of the second bar that is long enough to accommodate both the second weight and another said second weight, and releasably securing the second weight against movement relative to the handle assembly with the second bar occupying the slot in the second weight, wherein the handle assembly and each said weight define a loaded handle assembly.

3. The method of claim 2, wherein the handle assembly is provided with a first fastener on a distal end of the first bar to limit movement of the first weight in a direction parallel to a longitudinal axis defined by the first bar, and with a second fastener on a distal end of the second bar to limit movement of the second weight in a direction parallel to a longitudinal axis defined by the second bar.

4. The method of claim 3, wherein the handle assembly is provided with each said fastener rigidly secured to a respective said bar, and at least one weight receiving space is defined between the first fastener and the first plate, and at least one weight receiving space is defined between the second fastener and the second plate.

5. The method of claim 4, wherein the handle assembly is provided with each said bar rigidly secured to the handle, thereby defining a fixed length for each said weight receiving space.

6. The method of claim 2, further comprising the steps of providing an additional first weight with a downwardly opening slot configured to receive the first bars lifting the additional first weight and holding the additional first weight so that the slot in the additional first weight opens downward toward the first bars;

and sliding the third additional first weight downward about onto the exposed and uninterrupted section of the first bar in such a manner that each said first weight bears against the other said first weight to maintain its position along the first bar, and releasably securing the additional first weight against movement relative to the handle assembly with the first bar occupying the slot in the third additional first weight.

7. The method of claim 6, wherein the first weight and the additional first weight are releasably secured to the handle assembly without any intervening structure disposed between any portion of the first weight and any portion of the additional first weight.

8. The method of claim 1, wherein the handle assembly is provided with each said bar axially aligned with the handle and integrally connected to the handle.

9. The method of claim 1, wherein the discrete portion of the base is configured to support more than one said weight without any intervening structure disposed therebetween, and without requiring any one said weight to be lifted prior to another said weight.

10. The method of claim 9, wherein the handle assembly is configured to support more than one said weight in a respective uninterrupted space along each said bar, and further comprising the steps of lifting one said first weight and another said first weight upward from the base;

and securing each said first weight on the first bar in respective positions bearing against each other to remain in said respective positions.

11. The method of claim 1, wherein the handle assembly is provided with a first fastener on a distal end of the first bar at a distance from the first plate suitable for holding three five pound weights therebetween, and with a second fastener on a distal end of the second bar at a distance from the second plate suitable for holding three five pound weights therebetween.

12. The method of claim 1, wherein each said weight is selectively mounted on the handle assembly in a perpendicular orientation relative to the first direction and the second direction with each said slot opening downward, and each said weight occupies a perpendicular orientation relative to the first direction and the second direction with each said slot opening downward when the handle assembly is resting on the support surface.

13. The method of claim 12, further comprising the step of providing a second said handle assembly, wherein the base is provided with a second upwardly facing support surface configured to support the second handle assembly and for each said handle assembly, moving at least one said weight from the discrete portion to a respective said handle assembly in a direction perpendicular to the first direction and the second direction.

14. The method of claim 1, wherein the base is configured to maintain each said weight on the handle assembly in a common orientation with each said weight on the discrete portion of the base, so any said weight is movable between a position on the of the base without requiring a change in orientation of the any said weight.

15. The method of claim 1, wherein the base is configured to hold each said weight on the handle assembly in co-planar relationship to with each said weight on the discrete portion of the base, so any said weight is movable between a position on the handle assembly and an alternative position on the discrete portion of the base without altering the co-planar relationship.

16. The method of claim 1, further comprising the steps of:

lifting the first weight upward from the bases;

sliding the first weight downward onto the first bar; and

securing the first weight in place on the first bar, wherein the lifting, sliding, and securing steps are performed in succession without requiring any change in orientation of the first weight.

17. The method of claim 16, wherein each said plate is provided with a respective said lower edge defining a flat bottom surface, and further comprising the steps of:

removing all said weight from the handle assembly; and

resting the handle assembly on the base with each said flat bottom surface resting on the upwardly facing support surface.

18. The method of claim 16, wherein each said weight is provided with a flat bottom surface, and further comprising the steps of:

securing the first weight and the second weight to the handle assembly; and

resting the handle assembly on the base with each said flat bottom surface resting on the upwardly facing support surface.

19. The method of claim 1, wherein each said plate is provided with a respective said lower edge defining a flat bottom surface, and further comprising the steps of:

removing all said weight from the handle assembly; and

resting the handle assembly on the base with each said flat bottom surface resting on the upwardly facing support surface.

20. The method of claim 1, wherein each said weight is provided with a flat bottom surface, and further comprising the steps of:

securing the first weight and the second weight to the handle assembly; and

resting the handle assembly on the base with each said flat bottom surface resting on the upwardly facing support surface.