Freestanding selectable free weight assembly

• US 7,862,487 B2
• Filed: 10/31/2008
• Issued: 01/04/2011
• Est. Priority Date: 02/01/2008
• Status: Expired due to Fees

• Current Assignee: Lawrence B. Olson
• Original Assignee: Lawrence B. Olson
• Inventors: Olson, Lawrence B.
• Primary Examiner(s): Thanh; Loan
• Assistant Examiner(s): Roland; Daniel F
• Application Number:
  US12/262,478
• Publication Number:
  US 20090197745A1
• Time in Patent Office: 795 Days
• Field of Search: 482 92- 98, 482104-109, 482/908, D21/681, D21/682
• US Class Current: 482/108
• CPC Class Codes: A63B 21/00065 by increasing or reducing the number of resistance units
• CPC Class Codes: A63B 21/00069 Setting or adjusting the resistance level; Compensating for a preload prior to use, e.g. changing length of resistance or adjusting a valve
• 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

This freestanding selectable free weight assembly includes an annular handle assembly that supports a weight set about each end. Each weight set includes end wedge assemblies with slanted interior faces and a set of slanted weight plates are sandwiched between the inner and outer slanted end wedge assemblies. Selectively movable rods are housed within the annular handle assembly. The user can actuate the movable rods to move underneath and support a defined number of weight plates to control the amount of weight disposed about each end of the handle. The weight plates are interconnected by a tang projecting to the side of each plate where each tang is adjacent to a locking slot. Each tang fits into a locking slot of each adjacent weight plate.

Claims

1. An adjustable weight set comprising:

(a) an annular hand graspable handle assembly having a pair of rod apertures;

(b) a pair of rack shafts disposed within said handle assembly each said rack shaft having a series of grooves disposed along its length;

(c) a pair of spaced apart weight assemblies disposed about said handle assembly to reveal a centrally disposed hand grip portion of said handle assembly, each weight assembly comprising;

(i) a inner wedge assembly and a outer wedge assembly in spaced apart relationship, each wedge assembly having an inner slanted face that can carry said handle assembly;

(ii) at least two slanted weight plates disposed between each of said outer and inner wedge assemblies;

(iii) each said slanted weight plate having a trapezoidally-shaped tang extending from the side and adjacent to a locking slot in the weight plate, each adjacent weight plate interlocking by a tang of one weight plate inserted into the locking slot of an adjacent weight plate;

there being a centrally disposed hole in each weight plate configured to receive said handle assembly;

(d) a knob assembly carried by each inner wedge assembly and comprising;

(i) a hand rotatable detented knob accessible by a user and carrying a series of detent depressions thereabout, each knob detent depression corresponding to one slanted weight plate;

(ii) a rod having an upper end affixed to said knob and a lower end extending through said handle assembly rod aperture and affixed to a rotatable notched pinion, said pinion notches matable with said rack shaft grooves where rotating said knob causes said pinion to rotate which in turn moves said rack shaft to move inside said handle assembly underneath said slanted weight plates;

whereby rotating each said knob causes each said rack shaft to move back and forth within said handle assembly to support a defined number of slanted weight plates for use by said user.

2. The adjustable weight set of claim 1, wherein said knob is detented with a detent assembly that is spring biased.

3. The adjustable weight set of claim 1, wherein said inner wedge assemblies, said outer wedge assemblies, and said weight plates are made from metal.

4. The adjustable weight set of claim 1, wherein each inner wedge assembly has a recess in which said rotatable knob is disposed.

5. The adjustable weight set of claim 1, wherein said handle assembly is terminated with a pair of handle collars that mate with said inner wedge assemblies.

6. The adjustable weight set of claim 1, wherein said tangs and said weight plates are formed from metal, and said tangs are welded onto said weight plates.

7. An adjustable weight set adjustable comprising:

(a) an annular hand graspable handle assembly having a pair of rod apertures;

(b) a pair of rack shafts disposed within said handle assembly each said rack shaft having a series of grooves disposed along its length;

(c) a pair of spaced apart weight assemblies disposed about said handle assembly to reveal a centrally disposed hand grip area of said handle assembly, each weight assembly comprising;

(i) a inner wedge assembly and a outer wedge assembly in spaced apart relationship, each wedge assembly having an inner slanted face that can carry said handle assembly;

(ii) a plurality of slanted weight plates disposed between each of said outer and inner wedge assemblies;

(iii) each said slanted weight plate having a trapezoidally-shaped tang bent to the side to leave a locking slot in the weight plate, each adjacent weight plate interlocking by a tang of one weight plate inserted into the locking slot of an adjacent weight plate;

there being a centrally disposed hole in each weight plate configured to receive said handle assembly;

(d) a knob assembly carried by each inner wedge assembly and comprising;

(i) a hand rotatable knob accessible by a user and carrying a series of detent depressions thereabout, each knob detent depression corresponding to one slanted weight plate;

(ii) a rod having an upper end affixed to said knob and a lower end extending through said handle assembly rod aperture and affixed to a rotatable notched pinion, said pinion notches matable with said rack shaft grooves where rotating said knob causes said pinion to rotate which in turn moves said rack shaft to move inside said handle assembly underneath said slanted weight plates;

(iii) a biased detent assembly disposed to mate with the detent depressions of said knob;

whereby rotating each said knob causes each said rack shaft to move back and forth within said handle assembly to support a defined number of slanted weight plates for use by said user.

8. The adjustable weight set of claim 7, wherein said detent assembly is spring biased.

9. The adjustable weight set of claim 7, wherein said inner wedge assemblies, said outer wedge assemblies, and said weight plates are made from metal.

10. The adjustable weight set of claim 7, wherein each inner wedge assembly has a recess in which said rotatable knob is disposed.

11. The adjustable weight set of claim 7, wherein said handle assembly is terminated with a pair of handle collars that mate with said inner wedge assemblies.