Closure device and self-closing pivot hinge
AssigneePortapivot BV
InventorsKoen Dries, Rudi Dries
Life of this patent
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Abstract
Self-closing pivot hinges and devices such as doors for closing off an opening between two rooms or in a building façade using such hinges include a spring that extends into a hinge housing along the longitudinal direction of the hinge housing, which lends a self-closing function, and a cam element and a ball that is pressed against the cam element by the spring. The cam element is shaped so that it creates support positions in which the ball rests.
Claims20
Device for closing an opening between two rooms or a façade opening of a building, the device comprising:
- a plate shaped element;
- and
- a first and a second pivot hinge provided on opposite sides of the plate shaped element for rotational hanging of the plate shaped element in the opening around a hinge axis,
- said first pivot hinge comprising:
- a hinge housing;
- a rotation column provided to be attached to a wall of the opening opposite a relevant side of the plate shaped element, wherein the housing is attached to rotate around the rotation column such that the housing is rotatable around the rotation column from a closed position, in which the plate shaped element closes the opening, in a first direction to a first open position and/or in a second direction, opposite to the first direction, to a second open position;
- a spring that extends into the hinge housing along the longitudinal direction of the hinge housing and which lends a self-closing function to the first pivot hinge;
- and
- a cam element that is part of the rotation column, and a ball that is pressed against the cam element by the spring, and wherein the cam element is shaped so that it creates support positions in which the ball rests when the plate shaped element is in the open and closed positions, and that the ball is pushed by spring force of the spring nearly from each position different from the support positions towards one of the support positions that corresponds with the closed position of the plate shaped element,
- wherein the support positions are formed by recesses in opposite surfaces of the cam element,
- wherein a damping element is included in the recess of the cam element that corresponds with the closed position of the plate shaped element so that, when the ball is pushed by the spring force into the recess that corresponds with the closed position of the plate shaped element, the damping element is deformed by the ball and the ball is slowed,
- wherein the damping element defines an elongated opening through the cam element to receive an elongated connection means for connecting the elements of the rotation column to each other.
Pivot hinge, for use with a plate shaped element of a device for closing an opening between two rooms or a façade opening of a building, wherein the pivot hinge is for rotational hanging of the plate shaped element in the opening around a hinge axis, wherein the pivot hinge comprises:
- a hinge housing;
- a rotation column provided to be attached to a wall of the opening opposite a relevant side of the plate shaped element, wherein the housing is attached to rotate around the rotation column such that the housing is rotatable around the rotation column from a closed position, in which the plate shaped element closes the opening, in a first direction to a first open position and/or in a second direction opposite to the first direction, to a second open position;
- a spring that extends into the hinge housing along the longitudinal direction of the hinge housing and which lends a self-closing function to the pivot hinge;
- and
- a cam element that is part of the rotation column, and a ball that is pressed against the cam element by the spring, and wherein the cam element is shaped so that it creates support positions in which the ball rests when the plate shaped element is in the open and closed positions, and that the ball is pushed by spring force of the spring nearly from each position different from the support positions towards one of the support position that corresponds with the closed position of the plate shaped element,
- wherein the support positions are formed by recesses in opposite surfaces of the cam element,
- wherein, a damping element is included in the recess of the cam element that corresponds with the closed position of the plate shaped element so that, when the ball is pushed by the spring force into the recess that corresponds with the closed position of the plate shaped element, the damping element is deformed by the ball and the ball is slowed.
Dependencies are inferred from the claim text.