US 6,286,185 B1Granted

Hinge for metal cupboard doors

OwnerDieter Ramsauerinventor

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Abstract

A hinge for metal cupboard doors or the like, comprising a first hinged piece such as a hinge plate with one or several counterbored holes for fixing screws and a second hinge piece articulated on the first hinge piece such as a hinge frame or hinge plate, which is also provided with several counterbored holes for fixing screws, wherein the holes of the at least one hinge part are configured as oblong holes. The hinge is provided with a fixing screw bushing which can be fitted into the oblong hole, and whose part fitting into the counterbored area of the oblong hole has a cross-section which differs from a circular form, i.e. a quadratic cross-section, preferably a longitudinally extended rectangular, rectangular with added semicircles of an oval cross-section, and whose longitudinal extension is (the same or) greater than the transversal extension of the counterbored area of the oblong hole and whose inner counter matches the shape of the fixing screw.

Claims20

Dependent claims

A hinge for sheet-metal cabinet doors, machine casings, housing covers, or the like, comprising:

a first hinge part, such as a hinge leaf with one or more countersunk openings for fastening screws;
a second hinge part articulated at the first hinge part, including one of a hinge support or another hinge leaf provided with one or more openings for fastening screws;
wherein the countersunk openings of the at least one hinge part being constructed as elongated holes;
a fastening screw bushing which can be received so as to fit in the countersunk elongated hole and having a portion which projects into the hinge leaf;
said portion which extends into the countersunk area of the elongated hole having an outer cross section having a shape which differs from a circular shape, and is selected from a group consisting of a square outer cross section, an elongated outer cross section such as a rectangular outer cross section, a rectangular outer cross section with added semicircular portions, and an oval outer cross section;
said bushing having a longitudinal extension at least equal to the transverse extension of the countersunk area of the elongated hole;
said fastening screw bushing having a contour which is adapted to the shape of the fastening screw;
said countersunk area of the elongated hole having, in cross section, side walls which are parallel to the axis of the opening and base surfaces which are perpendicular to these side walls;
said portion of the bushing extending into the countersunk area of the elongated hole comprising a disk-shaped body whose circumference forms two oppositely located parallel portions whose radial distance from one another is equal to or slightly less than the clearance between the longitudinal walls of the countersunk area;
the countersunk area of the opening of the hinge leaf having a base surface and the disk surface of the bushing supported thereon which surfaces are roughened and form a ribbing;
said bushing forming a flange whose outer contour is selected in such a way that it covers the countersunk opening in every possible position of the bushing with respect to the elongated hole;
and wherein said bushing forms a shoulder extending through the elongated hole opening.

9 more elements

A hinge for sheet-metal cabinet doors, machine casings, housing covers, or the like, comprising:

a first hinge part, such as a hinge leaf with one or more countersunk openings for fastening screws;
a second hinge part articulated at the first hinge part, including one of a hinge support or another hinge leaf provided with one or more openings for fastening screws;
wherein the countersunk openings of the at least one hinge part being constructed as elongated holes;
a fastening screw bushing which can be received so as to fit in the countersunk elongated hole and having a portion which projects into the hinge leaf;
said portion which extends into the countersunk area of the elongated hole having an outer cross section having a shape which differs from a circular shape, and is selected from a group consisting of a square outer cross section, an elongated outer cross section such as a rectangular outer cross section, a rectangular outer cross section with added semicircular portions, and an oval outer cross section;
said bushing having a longitudinal extension at least equal to the transverse extension of the countersunk area of the elongated hole;
said fastening screw bushing having a contour which is adapted to the shape of the fastening screw;
said countersunk area of the elongated hole having, in cross section, side walls which are parallel to the axis of the opening and base surfaces which are perpendicular to these side walls;
said portion of the bushing extending into the countersunk area of the elongated hole comprising a disk-shaped body whose circumference forms two oppositely located parallel portions whose radial distance from one another is equal to or slightly less than the clearance between the longitudinal walls of the countersunk area;
the countersunk area of the opening of the hinge leaf having a base surface and the disk surface of the bushing supported thereon which surfaces are roughened and form a ribbing;
said bushing forming a flange whose outer contour is selected in such a way that it covers the countersunk opening in every possible position of the bushing with respect to the elongated hole;
and
wherein the outer surface of the flange of the bushing has a mark such as an arrow which indicates the center transverse axis of the elongated profile of the disk and wherein the hinge part has a mark which indicates the center transverse axis of the elongated hole opening.

10 more elements

A hinge for sheet-metal cabinet doors, machine casings, housing covers, or the like, comprising:

a first hinge part, such as a hinge leaf with one or more countersunk openings for fastening screws;
a second hinge part articulated at the first hinge part, including one of a hinge support or another hinge leaf provided with one or more openings for fastening screws;
wherein the countersunk openings of the at least one hinge part being constructed as elongated holes;
a fastening screw bushing which can be received so as to fit in the countersunk elongated hole and having a portion which projects into the hinge leaf;
said portion which extends into the countersunk area of the elongated hole having an outer cross section having a shape which differs from a circular shape, and is selected from a group consisting of a square outer cross section, an elongated outer cross section such as a rectangular outer cross section, a rectangular outer cross section with added semicircular portions, and an oval outer cross section;
said bushing having a longitudinal extension at least equal to the transverse extension of the countersunk area of the elongated hole;
said fastening screw bushing having a contour which is adapted to the shape of the fastening screw;
said countersunk area of the elongated hole having, in cross section, side walls which are parallel to the axis of the opening and base surfaces which are perpendicular to these side walls;
said portion of the bushing extending into the countersunk area of the elongated hole comprising a disk-shaped body whose circumference forms two oppositely located parallel portions whose radial distance from one another is equal to or slightly less than the clearance between the longitudinal walls of the countersunk area;
the countersunk area of the opening of the hinge leaf having a base surface and the disk surface of the bushing supported thereon which surfaces are roughened and form a ribbing;
and
said bushing forming a flange whose outer contour is selected in such a way that it covers the countersunk opening in every possible position of the bushing with respect to the elongated hole;
wherein a cap nut is provided;
and
wherein the cap nut forms a countersink in which the free end of the shoulder can be received so as to be rigid against rotation.

12 more elements

Dependencies are inferred from the claim text.