US 5,689,855 AGranted

Door hinge structure

AssigneeChuan Mau Products Co., Ltd.

InventorJung-Chuan Tang

Life of this patent

Estimating the term…

Abstract

A door hinge structure including a first door hinge and a second door hinge connected between a door panel and a door frame at different elevations, for permitting the door panel to be turned relative to the door frame, each door hinge including two leaves having a respective eccentric hole, two bushings respectively mounted in the eccentric holes of the leaves and fixed in position by a respective tightening up screw and having a respective eccentric through hole, and a pivot pin fastened to the eccentric through holes of the bushings to connect the leaves together, permitting the leaves to be turned relative to each other.

Claims4

Dependent claims

A door hinge structure comprising a first door hinge and a second door hinge connected between a door panel and a door frame at different elevations, for permitting the door panel to be turned relative to the door frame, wherein:

said first door hinge comprises a first leaf having a flat leaf body at one end and a leaf base at an opposite end, the leaf body of the first leaf of said first door hinge having a plurality of screw holes adapted for fastening to the door frame, the leaf base of the first leaf of said first door hinge having one end obliquely connected to the leaf body of the first leaf of said first door hinge, and an opposite end terminating in a half-round portion, the half-round portion of the first leaf of said first door hinge having a vertically disposed eccentric hole and a horizontal screw hole perpendicularly disposed in communication with the eccentric hole;
a first bushing mounted within the eccentric hole of the first leaf of said first door hinge and having an eccentric through hole;
a first tightening up screw threaded into the horizontal screw hole of the first leaf of said first door hinge to fix the first bushing of said first door hinge in place;
a second leaf having a flat leaf body at one end and a leaf base at an opposite end, the leaf body of the second leaf of said first door hinge having a plurality of screw holes adapted for fastening to the door panel, the leaf base of the second leaf of said first door hinge having one end obliquely connected to the leaf body of the second leaf of said first door hinge;
and an opposite end terminating in a half-round portion, the half-round portion of the second leaf of said first door hinge having a vertically disposed eccentric hole and a horizontal screw hole perpendicularly disposed in communication with the eccentric hole;
a second bushing mounted within the eccentric hole of the second leaf of said first door hinge and having an eccentric through hole;
a second tightening up screw threaded into the horizontal screw hole of the second leaf of said first door hinge to fix the second bushing of said first door hinge in place;
and a pivot pin fastened to the eccentric through holes of the first bushing and second bushing of said first door hinge to secure the first leaf and second leaf of said first door hinge together, permitting them to be turned relative to each other;
said second door hinge comprises a first leaf having a flat leaf body at one end and a leaf base at an opposite end, the leaf body of the first leaf of said second door hinge having a plurality of screw holes adapted for fastening to the door panel, the leaf base of the first leaf of said second door hinge having one end obliquely connected to the leaf body of the first leaf of said second door hinge, and an opposite end terminating in a half-round portion, the half-round portion of the first leaf of said second door hinge having a vertically disposed eccentric hole and a horizontal screw hole perpendicularly disposed in communication with the eccentric hole;
a first bushing mounted within the eccentric hole of the first leaf of said second door hinge and having an eccentric through hole;
a first tightening up screw threaded into the horizontal screw hole of the first leaf of said second door hinge to fix the first bushing of said second door hinge in place;
a second leaf having a flat leaf body at one end and a leaf base at an opposite end, the leaf body of the second leaf of said second door hinge having a plurality of screw holes adapted for fastening to the door frame, the leaf base of the second leaf of said second door hinge having one end connected to the leaf body of the second leaf of said second door hinge at an angle, and an opposite end terminating in a half-round portion, the half-round portion of the second leaf of said second door hinge having a vertically disposed eccentric hole and a horizontal screw hole perpendicularly disposed in communication with tile eccentric hole;
a second bushing mounted within the eccentric hole of the second leaf of said second door hinge and having an eccentric through hole;
a second tightening up screw threaded into the horizontal screw hole of the second leaf of said second door hinge to fix the second bushing of said second door hinge in place;
and a pivot pin fastened to the eccentric through holes of the first bushing and second bushing of said second door hinge to secure the first leaf and second leaf of said second door hinge together, permitting them to be turned relative to each other.

12 more elements

Dependencies are inferred from the claim text.

patentgrep

Loading patent…

Abstract

said first door hinge comprises a first leaf having a flat leaf body at one end and a leaf base at an opposite end, the leaf body of the first leaf of said first door hinge having a plurality of screw holes adapted for fastening to the door frame, the leaf base of the first leaf of said first door hinge having one end obliquely connected to the leaf body of the first leaf of said first door hinge, and an opposite end terminating in a half-round portion, the half-round portion of the first leaf of said first door hinge having a vertically disposed eccentric hole and a horizontal screw hole perpendicularly disposed in communication with the eccentric hole;
a first bushing mounted within the eccentric hole of the first leaf of said first door hinge and having an eccentric through hole;
a first tightening up screw threaded into the horizontal screw hole of the first leaf of said first door hinge to fix the first bushing of said first door hinge in place;
a second leaf having a flat leaf body at one end and a leaf base at an opposite end, the leaf body of the second leaf of said first door hinge having a plurality of screw holes adapted for fastening to the door panel, the leaf base of the second leaf of said first door hinge having one end obliquely connected to the leaf body of the second leaf of said first door hinge;
and an opposite end terminating in a half-round portion, the half-round portion of the second leaf of said first door hinge having a vertically disposed eccentric hole and a horizontal screw hole perpendicularly disposed in communication with the eccentric hole;
a second bushing mounted within the eccentric hole of the second leaf of said first door hinge and having an eccentric through hole;
a second tightening up screw threaded into the horizontal screw hole of the second leaf of said first door hinge to fix the second bushing of said first door hinge in place;
and a pivot pin fastened to the eccentric through holes of the first bushing and second bushing of said first door hinge to secure the first leaf and second leaf of said first door hinge together, permitting them to be turned relative to each other;
said second door hinge comprises a first leaf having a flat leaf body at one end and a leaf base at an opposite end, the leaf body of the first leaf of said second door hinge having a plurality of screw holes adapted for fastening to the door panel, the leaf base of the first leaf of said second door hinge having one end obliquely connected to the leaf body of the first leaf of said second door hinge, and an opposite end terminating in a half-round portion, the half-round portion of the first leaf of said second door hinge having a vertically disposed eccentric hole and a horizontal screw hole perpendicularly disposed in communication with the eccentric hole;
a first bushing mounted within the eccentric hole of the first leaf of said second door hinge and having an eccentric through hole;
a first tightening up screw threaded into the horizontal screw hole of the first leaf of said second door hinge to fix the first bushing of said second door hinge in place;
a second leaf having a flat leaf body at one end and a leaf base at an opposite end, the leaf body of the second leaf of said second door hinge having a plurality of screw holes adapted for fastening to the door frame, the leaf base of the second leaf of said second door hinge having one end connected to the leaf body of the second leaf of said second door hinge at an angle, and an opposite end terminating in a half-round portion, the half-round portion of the second leaf of said second door hinge having a vertically disposed eccentric hole and a horizontal screw hole perpendicularly disposed in communication with tile eccentric hole;
a second bushing mounted within the eccentric hole of the second leaf of said second door hinge and having an eccentric through hole;
a second tightening up screw threaded into the horizontal screw hole of the second leaf of said second door hinge to fix the second bushing of said second door hinge in place;
and a pivot pin fastened to the eccentric through holes of the first bushing and second bushing of said second door hinge to secure the first leaf and second leaf of said second door hinge together, permitting them to be turned relative to each other.

12 more elements