WEIGHTLIFTING DEVICE WITH MECHANISM FOR DISENGAGING WEIGHT PLATES

• US 20110045956A1
• Filed: 07/30/2010
• Published: 02/24/2011
• Est. Priority Date: 07/31/2009
• Status: Active Grant

• Current Assignee: Icon-Ip Pty Limited
• Original Assignee: Icon-Ip Pty Limited
• Inventors: Colledge, Matthew, Olson, Michael
• Granted Patent: US 8,298,125 B2
• Time in Patent Office: Days
• US Class Current: 482/107
• 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

Exercise weight bars are disclosed that provide an easy and efficient way for a user to quickly remove, add, and secure weight plates to the exercise weight bars. The exercise weight bars provide weight locks that may remain attached to the exercise weight bar during the interchange of weight plates. The exercise weight bars can accept one or more weight plates on the ends thereof. The weight locks includes extension members that engage the weight plates when the weight locks are rotated to a locked position, thereby securing the weight plates to the exercise weight bar. When the weight locks are rotated to an unlocked position, the extension members are retracted to disengage the weight plates, thereby allowing the weight plates to be removed from the exercise weight bar.

Claims

1. An exercise weight bar adapted to have weight plates selectively secured thereto for exercise, the exercise weight bar comprising:

a handle having a first end and a second end; and

a first weight plate mount linked to the first end of the handle and a second weight plate mount linked to the second end of the handle, wherein each of the first and second weight plate mounts has at least one slot formed therein, each of the first and second weight plate mounts comprising;

a rotatable weight lock having at least one extension member that corresponds with the at least one slot, wherein the rotatable weight lock is rotatable between a locked position and an unlocked position, wherein the at least one extension member extends through the at least one slot when the rotatable weight lock is in the locked position, and wherein the at least one extension member does not extend through the at least one slot when the rotatable weight lock is in the unlocked position.

2. The exercise weight bar recited in claim 1, wherein the first weight plate mount has a generally triangular configuration.

3. The exercise weight bar recited in claim 1, wherein the rotatable weight lock further comprises a handle that facilitates rotation of the rotatable weight lock between the unlocked and locked positions.

4. The exercise weight bar recited in claim 1, wherein each of the first and second weight plate mounts comprises a hard stop that prevents the weight plates from sliding onto the handle.

5. The exercise weight bar recited in claim 1, wherein each of the first and second weight plate mounts comprises a housing.

6. The exercise weight bar recited in claim 5, wherein the at least one slot is formed in the housing.

7. The exercise weight bar recited in claim 6, wherein the rotatable weight lock is at least partially positioned within the housing

8. The exercise weight bar recited in claim 7, wherein rotation of the rotatable weight lock between the unlocked and locked positions enables the at least one extension member to extend out of the housing through the at least one slot or be refracted within the housing through the at least one slot.

9. An exercise weight bar configured to have weight plates quickly and efficiently secured thereto, the exercise weight bar comprising:

a handle having a first end and a second end;

a housing linked to the first end of the handle, the housing having a first end, a second end positioned further away from the handle than the first end, and a plurality of slots positioned between the first and second ends of the housing, wherein the housing is adapted to have one or more weight plates positioned thereon;

a hard stop disposed at the first end of the housing to prevent the weight plates from moving onto the grip; and

a rotatable weight lock positioned at least partially within the housing, the rotatable weight lock being adapted for rotation between a locked position and an unlocked position to selectively engage or disengage weight plates positioned on the housing, the rotatable weight lock comprising;

a plurality of extension members configured to extend through the plurality of slots of the housing to selectively engage the weight plates when the rotatable weight lock is rotated to the locked position, and wherein the plurality of extension members is configured to be refracted through the plurality of slots into the housing and to disengage the weight plates when the rotatable weight lock is rotated to the unlocked position.

10. The exercise weight bar recited in claim 9, further comprising a housing, a hard stop, and a weight lock disposed at the second end of the handle.

11. The exercise weight bar recited in claim 9, wherein the housing has a cross-sectional shape that generally corresponds to the cross-sectional shape of an aperture in a weight plate that is received on the housing.

12. The exercise weight bar recited in claim 9, wherein the plurality of slots includes two or more slots that are longitudinally spaced apart between the first and second ends of the housing.

13. The exercise weight bar recited in claim 12, wherein the plurality of extension members includes two or more longitudinally spaced apart extension members, wherein the two or more longitudinally spaced apart extension members correspond to the two or more slots such that the two or more longitudinally spaced apart extension members extend out of the two or more slots when the rotatable weight lock is rotated to the locked position.

14. The exercise weight bar recited in claim 9, wherein the plurality of slots extend generally parallel to the circumference of the bar.

15. The exercise weight bar recited in claim 9, wherein rotation of the rotatable weight lock between the unlocked and locked positions is generally about a longitudinal axis of the exercise weight bar.

16. A weightlifting device, comprising:

a handle having a first end and a second end;

a plurality of weight plates that correspond to the first end and a plurality of weight plates that correspond to the second end; and

a first latching mechanism associated with the first end and a second latching mechanism associated with the second end, wherein each of the first and second latching mechanisms comprises;

a hollow portion having a wall and being configured to receive one or more of the plurality of weight plates;

a plurality of slots formed within the wall;

a rotatable locking mechanism that rotates within the hollow portion, the rotatable locking mechanism having a locked position and an unlocked position, wherein the rotatable locking mechanism extends through the plurality of slots and engages one or more of the plurality of weight plates when in the locked position, and wherein the rotatable locking mechanism does not extend through the plurality of slots when in the unlocked position.

17. The weightlifting device recited in claim 16, wherein the wall of the hollow portion has a generally triangular configuration.

18. The weightlifting device recited in claim 16, wherein the plurality of slots are longitudinally spaced apart along the length of the hollow portion wall such that a weight plate of the plurality of weight plates can be positioned between the plurality of slots.

19. The weightlifting device recited in claim 16, wherein the rotatable locking mechanism further comprises a handle to enable a user to rotate the rotatable locking mechanism between the unlocked and locked positions.

20. The weightlifting device recited in claim 16, wherein rotatable locking mechanism handle extends past a cross-sectional profile of the hollow portion when the locking mechanism is in the locked position.