Hinge with adjustable friction
AssigneeElesa S.p.A.
InventorAlberto Bertani
Life of this patent
Estimating the term…
Abstract
Hinge for moving a door with respect to a stationary wall characterized in that it is composed of two opposing wings provided with through fixing holes and provided with a mutual engagement area, the mutual engagement area including shaped and complementary bushings protruding from one of the walls of each of the wings, the bushings housing, respectively a matching and friction system composed of a wedge-shaped matching element and a bushing-shaped matching element opposed to each other, kept in mutual connection by a screw-nut system.
Claims8
A hinge for moving a door with respect to a stationary wall, the hinge comprising:
- two opposing wings each provided with through fixing holes,
- and
- a mutual engagement area including shaped and complementary bushings each protruding from one wing of said opposing wings,
- wherein said bushings are together configured to house a matching and friction system composed of a wedge-shaped matching element and a bushing-shaped matching element opposed to each other, kept in mutual connection by a screw-nut system,
- wherein, during an operation of the hinge, the wedge-shaped matching element is configured to contact and broaden a portion of the bushing-shaped matching element,
- wherein the broadening of the portion of the bushing-shaped matching element creates a friction surface against the bushings of said opposing wings, and
- wherein said wedge-shaped matching element is composed of a cylindrical head provided with four equally spaced protruding ribs, a frustoconical cone appendix extending downwards from the bottom surface of said cylindrical head.
A hinge for moving a door with respect to a stationary wall, the hinge comprising:
- two opposing wings each provided with through fixing holes,
- and
- a mutual engagement area including shaped and complementary bushings each protruding from one wing of said opposing wings,
- wherein said bushings are together configured to house a matching and friction system composed of a wedge-shaped matching element and a bushing-shaped matching element opposed to each other, kept in mutual connection by a screw-nut system,
- wherein, during an operation of the hinge, the wedge-shaped matching element is configured to contact and broaden a portion of the bushing-shaped matching element,
- wherein the broadening of the portion of the bushing-shaped matching element creates a friction surface against the bushings of said opposing wings,
- wherein said bushing-shaped matching element is opposite to said wedge-shaped matching element, said bushing-shaped matching element being composed of a cylindrical elongated element, provided with ribs along the side wall in correspondence with the bottom surface, said ribs being suitable to be engaged with complementary grooves arranged inside said bushings, and
- wherein the top surface of said bushing-shaped matching element at its top displays four longitudinal slots.
Dependencies are inferred from the claim text.