Hinge with reduced bulkiness for vertical-movement doors

• US 20080115322A1
• Filed: 11/23/2007
• Published: 05/22/2008
• Est. Priority Date: 11/22/2006
• Status: Active Grant

• Current Assignee: Agostino Ferrari S.p.A.
• Original Assignee: Agostino Ferrari S.p.A.
• Inventors: Migli, Carlo
• Granted Patent: US 8,082,629 B2
• Time in Patent Office: Days
• US Class Current: 16/283
• CPC Class Codes: E05D 15/46 with two pairs of pivoted arms
• CPC Class Codes: E05D 3/14 with four parallel pins and two arms
• CPC Class Codes: E05F 1/1091 with a gas spring E05F1/1292 takes precedence
• CPC Class Codes: E05Y 2201/416 for counterbalancing
• CPC Class Codes: E05Y 2900/20 for furnitures, e.g. cabinets

Abstract

A parallelogram hinge for vertical-movement doors comprises a first plate designed to be fastened to the furniture flank, a second plate designed to be fastened to the door and two superposed arms pivotally mounted to the plates to form an articulated parallelogram. A spring for movement balancing is connected to the upper arm at an intermediate position between the arm extremities hinged to the plates and is connected to the first plate at a point below the pivot point of the lower arm on the first plate. This enables very reduced bulkiness in the direction of the furniture depth, achievement of a great opening angle and better operation of the spring embodied by a gas piston.

Claims

1. A parallelogram hinge for vertical movement doors, comprising a first plate designed to be fastened to the furniture flank, a second plate designed to be fastened to the door, two superposed arms being pivotally mounted between the first and second plates to form an articulated parallelogram with the plates, a spring for movement balancing being linked between the first plate and one of the arms, characterized in that the spring is connected to the upper arm at an intermediate position between the hinged extremities of the arm to the plates and is connected to the first plate at a point below the pivot point of the lower arm on the first plate.

2. A hinge as claimed in claim 1, characterized in that the pivot points of the arms and the spring on the first plate are substantially aligned with each other in the plate plane.

3. A hinge as claimed in claim 1, characterized in that the pivot point of the spring on the upper arm is offset towards the lower arm relative to the line joining the pivot points of the upper arm to the two plates.

4. A hinge as claimed in claim 1, characterized in that the spring is a piston spring mounted with its rod facing downwards.