Locking string tuner

1 . A locking string tuner, comprising:

a string post; and

an engagement member that is moveably associated with the string post;

the engagement member is moveably associated with the string post by a pivot pin that operates as a fulcrum member.

2 . The locking string tuner as set forth in claim 1 , wherein:

the string post is a single piece unit.

3 . The locking string tuner as set forth in claim 1 , wherein:

the string post includes:

a string engagement section that accommodates the engagement member, and

a gearing engagement section that is associated with a gearing mechanism.

4 . The locking string tuner as set forth in claim 3 , wherein:

the string engagement section is comprised of:

a recessed slot for housing the engagement member.

5 . The locking string tuner as set forth in claim 4 , wherein:

the engagement member is moveably housed within the recessed slot by a pivot pin.

6 . The locking string tuner as set forth in claim 4 , wherein:

the recessed slot is comprised of:

a bottom surface,

an engagement surface, and

a top surface.

7 . The locking string tuner as set forth in claim 6 , wherein:

a top distal end of the string engagement section of the string post includes an eccentrically positioned upper through-hole oriented parallel a central longitudinal axis of the string post, with the upper through-hole leading into the recessed slot via the top surface of the recessed slot; and

the bottom surface of the recessed slot of the string engagement section of the string post includes an eccentrically positioned, lower blind-hole oriented parallel the longitudinal axis of the string post;

the lower blind-hole is aligned with the upper through-hole.

8 . The locking string tuner as set forth in claim 7 , wherein:

the pivot pin is inserted through upper through-hole, an eccentrically positioned through-hole of the engagement member, and into the lower blind-hole.

9 . The locking string tuner as set forth in claim 6 , wherein:

the engagement surface of the recessed slot of the string engagement section of the string post has one of a flat and convex curve configuration.

10 . The locking string tuner as set forth in claim 5 , wherein:

the engagement member is moveably housed within the recessed-slot by a pivot pin that functions as a fulcrum to allow the engagement member to operate as a freely moveable lever with an in-plane rotational motion.

11 . The locking string tuner as set forth in claim 5 , wherein:

the engagement member is comprised of an ingress end and an egress end;

the engagement member has:

an engagement side, and

a reeling side.

12 . The locking string tuner as set forth in claim 11 , wherein:

the engagement side of the engagement member is comprised of:

a grip surface and

a relief surface.

13 . The locking string tuner as set forth in claim 12 , wherein:

the grip surface of the engagement side is offset, forming the relief surface of the engagement side.

14 . The locking string tuner as set forth in claim 12 , wherein:

the grip surface and the relief surface form parallel, but offset planes.

15 . The locking string tuner as set forth in claim 14 , wherein:

the grip surface is sloped at an angle Φ, slanted, and tapered towards a transverse egress edge of the grip surface, with a transverse rise edge of the rise at the grip surface at a higher level than transverse egress edge;

the relief surface is sloped at an angle Ω, slanted, and tapered towards an ingress end of the engagement member, with a transverse run-edge of the rise of the relief surface at a higher level than ingress end;

the transverse egress edge is at a higher level than ingress end of the engagement member.

16 . The locking string tuner as set forth in claim 14 , wherein:

the ingress end of the engagement member has reduced mass configured as a fillet edge that forms as relief surface to facilitate insertion of the string;

the fillet edge of the ingress end has a rounded convex curved configuration that facilitates winding of the string around the reeling side of the engagement member to thereby prevent severing of the wound string.

17 . The locking string tuner as set forth in claim 11 , wherein:

the engagement member further includes:

an eccentrically positioned through-hole.

18 . A locking string tuner, comprising:

an engagement member having an ingress end and an egress end;

the engagement member has:

an engagement side that includes a grip surface and a relief surface; and

a reeling side;

wherein: the grip surface has serrations;

wherein: the serrations are transversely oriented along a longitudinal axis of the grip surface, pointing towards the egress end of the engagement member, and transversely engaging the string.

19 . The locking string tuner as set forth in claim 18 , wherein:

the reeling side includes a groove that forms a channel that dictates the direction of travel and alignment of the string on the engagement member.

20 . The locking string tuner as set forth in claim 19 , wherein:

the groove is circumferentially oriented around part of the reeling side of the engagement member, ending near egress end of the reeling side of the engagement member, with egress end of the reeling side of the engagement member having no groove, allowing the reeling side of the engagement member near the egress end to be circumferentially flush with string post, leading the string onto circumferential surface of the cylindrical string post.

21 . The locking string tuner as set forth in claim 18 , wherein:

the engagement side has a concave configuration.