Modular footwear protuberance assembly

1. A method for manufacturing a footwear device, the method comprising assembling together:

at least one protuberance assembly comprising a base and a cap which are configured to rotatively align;

a locking fixture configured to lock and unlock the alignment of said base and cap; and

producing a fastening fixture configured to fasten said base to a track at a pre-selected position in an outsole of said device,

wherein said fastening fixture comprises a track nut movably disposed in said track and a screw configured to be screwed in said nut, and

wherein said base comprises a screw bore positioned in an eccentric manner with respect to said protuberance assembly, said screw bore configured to allow fastening of said base to said track in said selected position by said screw and said track nut, and

wherein said cap comprises a bore positioned correspondingly to said screw bore configured to allow access to said screw through said cap.

2. The method of claim 1 , further comprising assembling said footwear device to a footwear.

3. The method of claim 2 , wherein said footwear device further comprises a securing fixture configured to secure said footwear device to the footwear, wherein said securing fixture is selected from a list consisting of straps, buckles, and shoelaces.

4. The method of claim 1 , wherein said cap is configured to be replaceable by:

unlocking the alignment of the base and cap;

rotating the cap on said base to remove the cap from the base while the base is kept firmly mounted to said selected position;

rotating another cap on said base until an alignment of said another cap with said base is achieved; and

locking said alignment of said another cap and said base.

5. The method of claim 1 , wherein said base further comprises a socket ending with an opening in a peripheral wall of said base, said socket configured to accommodate the locking fixture.

6. The method of claim 5 , wherein said locking fixture comprises a locking pin and a spring, and wherein said locking fixture is configured to lock said alignment of said base and cap when placed in said socket.

7. The method of claim 6 , wherein rotation of the cap is configured to gradually push the locking pin and thereby compress the spring, such that a tip portion of the locking pin is inserted into a first locking channel, thereby allowing rotation of the cap over the base.

8. The method of claim 5 , rotation of the cap is configured to align a second locking channel with the first locking channel, allowing the tip portion of the locking pin to be pushed into the second locking channel by the compressed spring 350 , thereby fixedly aligning the cap and the base.