Detachably attachable weight clip for barbells

1 . A weight clip system for detachable attachment of a free weight to a barbell comprising:

said barbell and said free weight;

a weight clip comprising:

a mounting collar configured for sliding on said barbell having an interior surface configured to extend around said barbell;

a collar set screw that extends through the mounting collar and configured to secure the mounting collar to said barbell;

a shaft extending from the mounting collar and having a collar end coupled to the mounting collar and a hook end opposite to the collar end;

a hook, wherein the hook is connected to the hook end of the shaft and configured for hanging a free weight thereon;

a hook set screw that extends through the hook and configured to secure said free weight to the hook;

a hook-shaft coupling configured to allow rotation of the hook relative to the shaft;

a swivel-lock configured on the hook to extend over the shaft and configured to prevent rotation of the hook with respect to the mounting collar.

2 . The weight clip system in accordance with claim 1 , wherein the interior surface of the mounting collar forms a ring.

3 . The weight clip system in accordance with claim 1 , wherein the interior surface of the mounting collar comprises an interior liner.

4 . The weight clip system in accordance with claim 3 , wherein the interior liner is an elastomeric material configured to dampen vibration of the free weight detachably attached to the weight clip.

5 . The weight clip system in accordance with claim 4 , wherein the hook is a J-hook having a cradle that curves a radius from a hook extension to an extended end of the hook at least 140 degrees.

6 . The weight clip system in accordance with claim 5 , wherein the hook comprises a hook liner configured in the cradle of the hook.

7 . The weight clip system in accordance with claim 6 , wherein the hook liner is an elastomeric material configured to dampen vibration of the free weight detachably attached to the weight clip.

8 . The weight clip system in accordance with claim 1 , wherein the shaft has shaft threads and wherein the swivel-lock has threads that engage with the shaft threads; whereby tightening the swivel-lock by rotation of the swivel-lock prevents the hook from rotating with respect to the mounting collar.

9 . The weight clip system in accordance with claim 1 , wherein the free weight is a dumbbell.

10 . The weight clip system in accordance with claim 1 , wherein the free weight is a kettlebell.

11 . The weight clip system in accordance with claim 1 , wherein the hook is a J-hook having a cradle that curves a radius from a hook extension to an extended end of the hook at least 140 degrees.

12 . The weight clip system in accordance with claim 11 , wherein the J-hook has a hook extension that includes a planar portion between the shaft and the cradle.

13 . The weight clip system in accordance with claim 1 , wherein the collar set screw has thumb flanges to enable manual tightening of the collar set screw.

14 . The weight clip system in accordance with claim 13 , wherein the hook set screw has thumb flanges to enable manual tightening of the hook set screw against said free weight.

15 . The weight clip system in accordance with claim 14 , wherein the shaft has shaft threads and wherein the swivel-lock has threads that engage with the shaft threads; whereby tightening the swivel-lock by rotation of the swivel-lock prevents the hook from rotating with respect to the mounting collar.

16 . The weight clip system in accordance with claim 1 , wherein the hook set screw has thumb flanges to enable manual tightening of the hook set screw against said free weight.

17 . The weight clip system in accordance with claim 1 , wherein the weight clip is made from a material selected from the group consisting of: cast iron, tool steel, carbon alloy, high-density polyethylene.

18 . A weight clip system for detachable attachment of a free weight to a barbell, comprising:

said barbell and said free weight;

a weight clip comprising:

a mounting collar configured for sliding on said barbell having an interior surface configured to extend around said barbell;

a collar set screw that extends through the mounting collar and configured to secure the mounting collar to said barbell;

a shaft extending from the mounting collar and having a collar end coupled to the mounting collar and a hook end opposite to the collar end;

a hook, wherein the hook is connected to the hook end of the shaft configured for hanging a free weight thereon;

a hook set screw that extends through the hook to secure said free weight to the hook;

wherein the collar set screw has thumb flanges to enable manual tightening of the collar set screw against said barbell;

a hook-shaft coupling configured to allow rotation of the hook relative to the shaft;

a swivel-lock configured on the hook to extend over the shaft and configured to prevent rotation of the hook with respect to the mounting collar;

a collar set screw extending through the mounting collar and configured to secure the weight clip to said barbell; and

a hook set screw extending through the hook and configured to secure said free weight to the hook;

wherein the hook set screw has thumb flanges to enable manual tightening of the hook set screw;

wherein the interior surface of the mounting collar forms a ring;

wherein the interior surface of the mounting collar comprises an interior liner that is an elastomeric material configured to dampen vibration of the free weight detachably attached to the weight clip; and

wherein the shaft has shaft threads and wherein the swivel-lock has threads that engage with the shaft threads; whereby tightening the swivel-lock by rotation of the swivel-lock prevents the hook from rotating with respect to the mounting collar.

19 . A method of securing a free weight to a barbell comprising:

a) providing the weight clip according to claim 1 ;

b) providing a barbell and a free weight;

c) sliding the mounting collar over an extended end of said barbell;

d) securing the mounting collar to the barbell by tightening the collar set screw;

e) placing a free weight on the hook; and

f) securing the free weight to the hook by tightening the hook set screw.

20 . The method of claim 19 , further comprising:

rotating the hook to a hook rotational position with respect to the mounting collar; and

securing the hook in said hook rotational position with respect to mounting collar by tightening the swivel-lock.