Adjustable weight exercise methods and apparatus

• US 6,997,856 B1
• Filed: 05/23/2003
• Issued: 02/14/2006
• Est. Priority Date: 05/23/2002
• Status: Expired due to Fees

• Current Assignee: Core Health & Fitness LLC
• Original Assignee: Mark Krull
• Inventors: Krull, Mark A.
• Primary Examiner(s): Huson, Gregory L.
• Assistant Examiner(s): BAKER, LORI LYNN
• Application Number:
  US10/445,115
• Time in Patent Office: 998 Days
• Field of Search: 482104-109, 482/148
• US Class Current: 482/104
• 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
• CPC Class Codes: A63B 21/075 with variable weights , e.g. weight systems with weight selecting means for bar-bells or dumb-bells

Abstract

An exercise dumbbell includes a handle assembly and weight plates maintained in spaced relationship relative thereto. At each end of the dumbbell, a weight selector is maneuverable into and out of engagement with desired weight plates to secure same relative to the handle assembly. The weight selector includes both a first selector rod segment that is configured to selectively engage at least a first one of the weight plates, and a second selector rod segment that is configured to selectively engage at least a second, discrete one of the weight plates.

Claims

1. A method of adjusting weight resistance to exercise, comprising the steps of:

providing a weight lifting member having weight supports and defining a longitudinal axis;

providing weights sized and configured to be supported by the weight supports;

providing a weight selector assembly having a rod that is sized and configured for insertion into at least some of the weights, and a block that is rotatably mounted on the rod;

selectively rotating the block between a first orientation relative to the rod and a second orientation relative to the rod; and

moving the selector assembly into a latched position relative to the lifting member to connect a first selection of the weights to the lifting member when the block occupies the first orientation relative to the rod, and to alternatively connect a discrete, second selection of the weights to the lifting member when the block occupies the second orientation relative to the rod.

2. The method of claim 1, further comprising the step of providing a base to support the weights in a rest position.

3. The method of claim 1, wherein the weight lifting member is provided with a handle, and a first group of the weight supports is disposed at one end of the handle, and a second group of the weight supports is disposed at an opposite end of the handle.

4. The method of claim 3, further comprising the step of providing a base to support a first group of the weights at a fixed distance apart from a second group of the weights.

5. The method of claim 3, further comprising the step of selectively rotating the rod relative to the lifting member before moving the selector assembly to a latched position relative to the lifting member, wherein when the rod occupies a first orientation relative to the lifting member, the first selection of weights is selectively connected to the lifting member when the selector assembly is moved to a latched position relative to the lifting member, and when the rod occupies a second orientation relative to the lifting member, a third selection of the weights is selectively connected to the lifting member when the selector assembly is moved to a latched position relative to the lifting member.

6. The method of claim 1, wherein the block is provided with a selector peg, and when the block occupies the second orientation relative to the rod, the moving step involves aligning the peg with a hole in one of the weights and inserting the peg into the hole to underlie said one of the weights.

7. An exercise dumbbell, comprising:

a handle assembly having a handle that defines a longitudinal axis, and weight supports secured to opposite ends of the handle;

first weights and second weights sized and configured to be supported by the weight supports at respective ends of the handle; and

a first weight selector assembly and a second weight selector assembly, wherein each said weight selector assembly includes a rod that is movably mounted on the handle assembly, and a block that is movably mounted on the rod, and each said weight selector assembly is selectively maneuverable into engagement with different combinations of respective said weights, including a first combination wherein the block occupies a first position relative to the rod, and a discrete, second combination wherein the block occupies a discrete, second position relative to the rod.

8. The exercise dumbbell of claim 7, further comprising a base configured to support the weights in a rest position at a fixed distance apart from one another.

9. The exercise dumbbell of claim 7, wherein each said rod is generally J-shaped, and includes a first, relatively longer end portion that is slidably and rotatably connected to the handle assembly, and a second, relatively shorter end portion that is configured for insertion into at least some respective said weights.

10. The exercise dumbbell of claim 9, wherein the block is rotatably mounted on an intermediate portion of the rod that extends perpendicular to each said end portion.

11. The exercise dumbbell of claim 10, wherein a peg projects outward from the block and is configured for insertion into at least one of said weights.

12. The exercise dumbbell of claim 7, wherein said first weights include a first weight plate, a second weight plate, and a third weight plate, and the rod is configured and arranged to selectively underlie different combinations of the first weight plate and the second weight plate, and the block is configured and arranged to underlie the third weight plate when the block occupies the second position.

13. The exercise dumbbell of claim 12, wherein the rod is configured and arranged to span the third weight plate without underlying the third weight plate.

14. The exercise dumbbell of claim 12, wherein a peg projects outward from the block and is configured for insertion beneath at least a portion of the third weight plate.

15. The exercise dumbbell of claim 7, further comprising a latching means for latching each said weight selector assembly in a weight engaging position relative to the handle assembly.

16. An adjustable weight exercise system, comprising:

a handle assembly having a handle that defines a longitudinal axis, and weight supports secured to opposite ends of the handle;

first weights and second weights sized and configured to be supported by the weight supports at respective ends of the handle;

a base sized and configured to support the first weights and the second weights at a fixed distance apart from one another;

a first selector rod and a second selector rod, wherein each said selector rod is movably mounted on the handle assembly for selective engagement of different combinations of respective said weights; and

a first selector block and a second selector block, wherein each said selector block is movably mounted on a respective selector rod for engagement of additional combinations of respective said weights when the selector block is selectively repositioned relative to the rod.

17. The adjustable weight exercise system of claim 16, wherein each said selector rod is configured and arranged for movement axially relative to the handle assembly, and for rotation about the axis relative to the handle assembly.

18. The adjustable weight exercise system of claim 16, wherein at least one peg projects outward from each said selector block.

19. The adjustable weight exercise system of claim 18, wherein each said peg is configured and arranged for insertion into at least one of the weights at a first radial distance from the axis.

20. The adjustable weight exercise system of claim 19, wherein each said selector rod is configured and arranged for insertion into at least one of the weights at a second, relatively greater radial distance from the axis.

21. An exercise dumbbell, comprising:

a handle that defines a longitudinal axis;

weight supports mounted on opposite ends of the handle;

weights sized and configured to be supported in respective, axially spaced positions defined by the weight supports; and

a weight selector on the handle assembly, wherein the weight selector includes a first selector rod segment configured to engage a first subset of the weights upon insertion into a first passage defined by at least one of the weight supports, and a second selector rod segment configured to simultaneously engage a second subset of the weights upon insertion into a second passage defined by at least one of the weight supports, wherein the second selector rod segment is linked to the first selector rod segment, and the first passage is disposed at a first distance from the axis, and the second passage is disposed at a second, relatively smaller distance from the axis.

22. The exercise dumbbell of claim 21, wherein at least one additional passage is disposed at the first distance from the axis to alternatively receive the first selector rod segment, and at least one additional passage is disposed at the second distance from the axis to alternatively receive the second selector rod segment.

23. The exercise dumbbell of claim 21, wherein the weight selector further includes a third selector rod segment configured to engage a third subset of the weights upon insertion into a third passage defined by at least one of the weight supports.

24. The exercise dumbbell of claim 21, further comprising a base configured to support the weights in a rest position.

25. An adjustable weight exercise system, comprising:

a lifting member having spaced apart weight supports;

weights sized and configured to be supported by the weight supports;

a base sized and configured to support the weights; and

a weight selecting means for selectively connecting different combinations of the weights to the lifting member, wherein the weight selecting means includes a first selector rod segment and a second selector rod segment that are maneuverable into different arrangements relative to the lifting member, including a first arrangement wherein the first selector rod segment engages a first one of the weights, and the second selector rod segment engages a second one of the weights, and a second arrangement, wherein the first selector rod segment engages the first one of the weights, and the second selector rod segment is disengaged from the second one of the weights, and a third position, wherein the first selector rod segment is disengaged from the first one of the weights, and the second selector rod segment engages the second one of the weights, and in each said arrangement, a common distance is defined between the first selector rod segment and the second selector rod segment.