Patent ID: 8079114

Claim:
A height adjustment device for a door hinge, the device configured to be co-operative with the door hinge having hinge leaves attachable to a door leaf and a door frame, respectively, wherein the height adjustment device is configured to be installed on either the door leaf or the door frame to engage a dedicated one of the hinge leaves there at, wherein a rotary height adjustment mechanism of said device upon such engagement is adapted to bear against an adjacent, longitudinal edge on the dedicated one of the hinge leaves, and wherein the height adjustment mechanism comprises a rotary height adjustment member with a plurality of selectable adjustment features located at respective different distances from a rotation center of the rotary height adjustment member, the rotary height adjustment mechanism comprises a limitedly movable slide and the rotary height adjustment member, wherein the slide has a first end configured for abutment against said longitudinal edge of the hinge leaf; and that the rotary height adjustment member has a rotor with the plurality of radially directed, angularly separated features of different lengths, wherein an end portion of such a feature, upon rotation of the rotary height adjustment member to a required rotary position, is adapted to releasably engage with an engaging portion at a second end of the slide that is opposite said first end of the slide, wherein the slide insulates the rotary height adjustment member from the one of the hinge leaves.