Three-part door hinge adjustable in three dimensions (3D)

A three-part door hinge enabling pivoting of a leaf element in relation to a frame and about a pivot axis of the door hinge, comprising:

• a pin having a lower pin section, the middle pin section, and an upper pin section;
• a frame hinge part for fixing on a frame, the frame hinge part having an upper housing and a lower housing which are fixed at a defined distance and concentrically in relation to one another;
• an adjusting screw configured for adjusting an axial position of the pin relative to the frame hinge part;
• and
• a leaf hinge part for fastening on a leaf element, the leaf hinge part having a middle housing, which is arranged between the upper and the lower housings,
• wherein the pin extends through all housings,
• wherein the adjusting screw provides an adjustability of the door hinge in a first dimension parallel to the pivot axis,
• wherein two eccentricities of an eccentric bushing and the middle pin section are provided within a middle housing of the leaf hinge part, which interact such that a middle longitudinal axis of the middle housing is shiftable parallel to the pivot axis to any arbitrary point inside a virtual circular plane defined by the two eccentricities and aligned orthogonally to the pivot axis, resulting in an adjustability in two further dimensions orthogonal to the pivot axis,
• wherein the middle pin section is formed eccentrically with respect to the upper and the lower pin sections,
• wherein the middle pin section is enclosed by the eccentric bushing,
• wherein the eccentric bushing is in turn enclosed by the middle housing of the leaf hinge part,
• wherein the middle pin section, the eccentric bushing, and the middle housing of the leaf hinge part are connectable to one another in a rotationally-fixed manner, the pin being mounted such that the upper pin section is located in the upper housing and the lower pin section is located in the lower housing so that the pin is rotatable about the pivot axis,
• wherein the lower pin section has a larger diameter than the middle pin section which has a larger diameter than the upper pin section,
• wherein the eccentric bushing rests with a lower end face on a lower shoulder of the pin and the middle housing has a collar which rests at least partially on the upper end face of the eccentric bushing,
• wherein the pin has a thread that accommodates a lock element on its upper end, the lock element being a lock nut or a first lock screw, and
• wherein the pin is fixedly held together with a driver bushing, the middle housing, and the eccentric bushing in a rotationally-fixed manner by the lock element, which is arranged inside the upper housing and is screwed together with the thread at the upper end of the pin, wherein the lock element presses against an offset of the driver bushing upon tightening.

A three-part door hinge for the purpose of enabling pivoting of a leaf element in relation to a frame and about a pivot axis of the door hinge, comprising:

• a pin;
• a frame hinge part for fixing on a frame, the frame hinge part having an upper housing and a lower housing, which are fixed at a defined distance and concentrically in relation to one another;
• and
• a leaf hinge part for fastening on a leaf element, the leaf hinge part having a middle housing, which is arranged between the upper and the lower housings;
• wherein the pin extends through all housings,
• wherein the door hinge further comprises an adjusting screw configured for adjusting an axial position of the pin relative to the frame hinge part, which results in an adjustability of the door hinge in a first dimension parallel to the pivot axis,
• wherein two eccentricities of an eccentric bushing and a middle pin section of the pin are provided within the middle housing of the leaf hinge part, which interact such that a middle longitudinal axis of the middle housing is shiftable parallel to the pivot axis to any arbitrary point inside a virtual circular plane defined by the two eccentricities and aligned orthogonally to the pivot axis, resulting in an adjustability in two further dimensions orthogonal to the pivot axis,
• wherein the pin has a lower pin section, the middle pin section, and an upper pin section, wherein the middle pin section is formed eccentrically with respect to the upper and the lower pin sections,
• wherein the middle pin section is enclosed by the eccentric bushing,
• wherein the eccentric bushing is in turn enclosed by the middle housing of the leaf hinge part,
• wherein the middle pin section, the eccentric bushing, and the middle housing of the leaf hinge part are connectable to one another in a rotationally-fixed manner, the pin being mounted such that the upper pin section is located in the upper housing and the lower pin section is located in the lower housing so that the pin is rotatable about the pivot axis,
• wherein the upper pin section in the upper housing is enclosed by a driver bushing and the driver bushing and the eccentric bushing are connected to one another by at least one tongue-and-groove connection such that a rotational adjustment of one bushing is transferred to the other bushing.