DOOR HINGE

Abstract

A door hinge has a first leaf assembly having a base frame, a second leaf assembly, and a link assembly connecting the leaf assemblies pivotally to each other. A first end of the link is pivoted on the seat block in the first leaf assembly. The seat block is movable in the base frame for adjustment in a first direction, and a guide formation preventing movement of the seat block in a second direction relative to the base frame.

Claims

1. A door hinge comprising: a first leaf assembly having a base frame; a second leaf assembly; a link connecting the leaf assemblies pivotally to each other; a seat block in the first leaf assembly and on which a first end of the link is pivoted, the seat block being movable in the base frame for adjustment in a first direction; and a guide formation preventing movement of the seat block in a second direction relative to the base frame.

2. The door hinge according to claim 1, wherein the base frame has at least one groove extending in the first direction and in which the guide formation engages, the groove having a greater length than a length of the guide formation for a slide fit.

3. The door hinge according to claim 1, wherein the groove is an opening in the base frame.

4. The door hinge according to claim 2, wherein the groove is formed in a lateral wall of the base frame.

5. The door hinge according to claim 2, wherein at least two grooves are provided, in each of which a respective guide formation of the seat block engages. cm 6. The door hinge according to claim 5, wherein the grooves each have a length of between 8 and 20 mm.

7. The door hinge according to claim 5, wherein the grooves are spaced from each other in the first direction, the spacing being between 40 and 70 mm.

8. The door hinge according to claim 1, wherein the guide formation has a length of between 5 and 10 mm.

9. The door hinge according to claim 1, further comprising: a screw fastener for locking the seat block to the base frame.

10. The door hinge according to claim 9, wherein the seat block has at least one slot in which in a loosened state the respective screw fastener is guided along the first direction.

11. The door hinge according to claim 1, further comprising: upper and lower mounts detachably fastened to the seat block, the link being rotatably supported on the mounts.

12. The door hinge according to claim 1, wherein the first direction is transverse to the second direction.

13. The door hinge according to claim 12, wherein the first direction is vertical an d the second direction is horizontal.

Description

BRIEF DESCRIPTION OF THE DRAWING

[0021] The above and other objects, features, and advantages will become more readily apparent from the following description, reference being made to the accompanying drawing in which:

[0022] FIG. 1 is an isometric view of the door hinge according to the invention;

[0023] FIG. 2 is a detail front view of the first leaf assembly;

[0024] FIG. 3 is a front view of the essential components of the first leaf assembly; and

[0025] FIG. 4 is a side view of the base frame and the seat block of the first leaf assembly.

SPECIFIC DESCRIPTION OF THE INVENTION

[0026] FIG. 1 shows the door hinge according to the invention with a first leaf assembly 1 and a second leaf assembly 2, the first leaf assembly 1 being mounted in a mortise in a reveal side of an unillustrated door frame and the second leaf assembly 2 in a mortise in an edge of an unillustrated door panel. This is thus a concealed arrangement of the door hinge between the door panel and the door frame with the components of the door hinge in a closed state of the door not visible from outside. This applies equally also for the pivot assembly that pivots the leaf assemblies 1, 2 on each other.

[0027] The leaf assemblies 1, 2 are pivoted on each other via a link arrangement consisting of a first link 3 and a second link 4 that are rotatably connected to each other at an axis a parallel to a first vertical direction x. Furthermore the two links 3, 4 are rotatable on the respective leaf assemblies 1, 2, the second link 4 being only rotatable and the first link 3 being both rotatable as well as longitudinally movable in the second leaf assembly 2. The second link 4 consists moreover of two pivotally interconnected to each other link parts, a first link part being mounted in the first leaf assembly 1 and a second link part being mounted in the second leaf assembly 2.

[0028] For connection of the links 3, 4, the leaf assemblies 1, 2 have respective upper mounts 5a, 5b and lower mounts 6a, 6b in that are detachably mounted on the leaf assemblies 1, 2.

[0029] In the context of the invention, the design of the leaf assembly 1 is of particular significance and is shown in detail in FIG. 2. It is clear this leaf assembly 1 essentially has four detachably interconnected components. Thus, first of all, there is a base frame 7 is provided that is secured through holes 8 to the door panel. The frame 7 thus forms a housing holding the further components. A cavity of the base frame 7 holds a seat block 9 that is formed from an upper section 10, a lower section 11 and a middle section 12. It is thus a one-piece component that is fixed via screw fasteners 13 to the base frame 7. In this context it is noted that the view of FIG. 2 only shows fasteners in the upper half of the illustrated leaf assembly 1, whereas screw fasteners 13 are also provided for the lower half.

[0030] In order that the seat block 9 can be adjusted along the first direction x, the screw fastener or fasteners 13 are guided in respective firsts slot 14 that are elongated in the first direction x and whose lengths define the possible adjustment paths. Also the mounts 5, 6 are fastened via second screw fasteners 15 at second slots 16 to the seat block 9, the second slot 16 extending in a third horizontal direction z perpendicular to a plane of the door panel, so that adjustment in this third direction z is enabled.

[0031] A special feature of the first leaf assembly 1 is the manner and how the seat block 9 is held on the base frame 7. This can be determined in particular from a comparison of FIGS. 3 and 4, where FIG. 3 shows the essential components of the first leaf assembly 1, namely the base frame 7, the seat block 9 and the mounts 5a and 6a in side exploded view in a second direction y parallel to the door panel. FIG. 4 clarifies on the other hand a different side view without mounts 5a and 6a It becomes clear that the seat block has laterally projecting formations 17 that fit complementarily in grooves 18 of the base frame 7 and for inhibiting relative movement in the second horizontal direction y. Here the ridge formations 17 and the grooves 18 are so dimensioned displacement of the seat block in the first direction x is possible. The positive fit in the second direction y prevents the seat block 9 from tilting in the base frame 7 after loosening of the screw fasteners 13.

[0032] Although the grooves 18 can be formed in different ways, in the illustrated embodiment they are openings in the lateral wall 19 of the base frame 7.

[0033] FIG. 4 clearly shows that both the base frame 7 as well as the seat block 9 are formed as stepped bodies with the slots 14 formed in projecting upper and lower sections of the seat block 9.