Jig for drilling fixing holes for hinge elements of windows, doors and other closures

摘要

The jig is made up of two elements (11,12) arranged to cooperate with and self adjust to the looped forming node form of a hinge of a window shutter or other closure. The lower element (11) forms the base of the jig and presents a body (11.1) in a cylindrical form with a transverse opening (11.2) and a vertical threaded hole (11.4) on the line of the axis of the body. The upper element (12) contains a clamping head (12.1) extending at its lower section with a tubular body (11.3) of a smaller diameter and finishing with a threaded shaft (12.4) which penetrates inside the threaded hole (11.4) for adjustment.