Pivot hinge for an apparatus cover hood

Details Pivot hinge for an apparatus cover hood Pivot hinge for an apparatus cover hood

1975-04-29

1976-01-06

Hall, George T.

Receptacles

Closures

Having means for securing or retaining closure in its closed...

B65D 4108

Patent

active

039305945

ABSTRACT:
A pivot hinge for an apparatus cover hood comprising sleeves concentric to the pivot axis and axially displaceably yet non-rotatably arranged relative to the housing bottom part on the latter, and the face sides of the sleeves, respectively, being formed with curved courses. A cam is pivotally mounted about the pivot axis and with respect to the cover hood rotates therewith. Compression springs press the axially displaceable sleeves, respectively, with their curved courses against the cam, whereby the inclination of the curved courses relative to the radial plane of the sleeves and the measure or adjustment of the compression springs being selected such that within a predetermined rotation range of the cam about the axis, which corresponds substantially to the opening movement of the cover hood, there is produced a rotational moment with respect to the axis which corresponds in every position within the rotation range substantially to the rotational moment which is produced by the cover hood as a consequence of its gravity force, yet in an opposite rotational sense.

REFERENCES:
patent: 3548446 (1970-12-01), Hocq
patent: 3888386 (1975-06-01), Svensson

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