Over-center hinge
First Claim
1. Over-center hinge for cabinet doors, having a jamb-related part which can be fastened to a door jamb of a cabinet, and a door-related part in the form of a recess-mounting cup to be fastened in a door of a cabinet, and a linkage mechanism joining said cup to the jamb-related part and having a linkage end and being movable from a closed position to an open position through a dead-center position and vice versa, a cam mounted in said cup for pivoting by a given angular amount about a pivot axis, a compression spring biasing said cam toward the cup interior, a contact surface provided in the area of the linkage end of the jamb-related hinge part and sliding on a profile surface of said cam which extends slantingly from a bottom area of the cup into the interior of the cup, during a portion of the movement between the closed position and the dead-center position, and forces the door to said closed position, a stop element in the form of a swivel arm fulcrumed within the cup in the area opposite the pivot axis of the cam and having a free end pointing toward the cam, said swivel arm terminating in a stop edge disposed parallel to the pivot axis and swingable upwardly in the interior of the cup, from a position in which the stop edge is below said profile surface to a position in which the stop edge holds the cam precisely in said dead-center position, in the interior of the cup there being provided a resilient element engaging said swivel arm under bias, said element urging said swivel arm into the position locking the cam in the dead-center position.
1 Assignment
0 Petitions
Accused Products
Abstract
An over-center self-closing hinge for furniture. In the door-related part of the hinge, which is in the form of a cup to be set in a mortise, there is provided a resiliently biased, pivotingly mounted cam which, in cooperation with a contact surface on the jamb-related part of the hinge, forms the over-center mechanism. Within the hinge cup there is provided a swivel arm which can be swung upwardly to a position in which it holds the resiliently biased cam in its dead-center position. With the swivel arm there is associated a resilient element which seeks to swing it up into the raised position. The resilient element is preferably an elastically flexible arm reaching beneath the swivel arm and joined fixedly to the cam adjacent the pivot axis thereof.
30 Citations
20 Claims
- 1. Over-center hinge for cabinet doors, having a jamb-related part which can be fastened to a door jamb of a cabinet, and a door-related part in the form of a recess-mounting cup to be fastened in a door of a cabinet, and a linkage mechanism joining said cup to the jamb-related part and having a linkage end and being movable from a closed position to an open position through a dead-center position and vice versa, a cam mounted in said cup for pivoting by a given angular amount about a pivot axis, a compression spring biasing said cam toward the cup interior, a contact surface provided in the area of the linkage end of the jamb-related hinge part and sliding on a profile surface of said cam which extends slantingly from a bottom area of the cup into the interior of the cup, during a portion of the movement between the closed position and the dead-center position, and forces the door to said closed position, a stop element in the form of a swivel arm fulcrumed within the cup in the area opposite the pivot axis of the cam and having a free end pointing toward the cam, said swivel arm terminating in a stop edge disposed parallel to the pivot axis and swingable upwardly in the interior of the cup, from a position in which the stop edge is below said profile surface to a position in which the stop edge holds the cam precisely in said dead-center position, in the interior of the cup there being provided a resilient element engaging said swivel arm under bias, said element urging said swivel arm into the position locking the cam in the dead-center position.
Specification