Trailer Coupler Lock

FIG. 1 is a front, right and top perspective view of the trailer coupler lock showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a back, bottom and left perspective view thereof;

FIG. 9 is an alternate configuration in another front, right and top perspective view thereof; and,

FIG. 10 is an exploded perspective view thereof.

The broken lines throughout the drawing figures depict portions of the trailer coupler lock that form no part of the claimed design.