Hinge of the soft type with braked open position

Details Hinge of the soft type with braked open position Hinge of the soft type with braked open position

1999-12-06

2001-05-29

Mah, Chuck Y. (Department: 3626)

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Hinge

Including means to hold or retard hinged members against...

C016S371000, C016S374000, C016S297000, C016S286000

Reexamination Certificate

active

06237191

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to an improved hinge for furniture with a spring closure.
Generally the most appreciated and employed spring closure mechanisms for furniture hinges are those enabling a so-called soft closure. These mechanisms are designed in such a manner that an intervention only takes place at the last closure degrees, leaving the door free at all other possible positions thereof, until its maximum opening allowed by the mechanical linkage.
Different systems for accomplishing mechanical linkages for closures having the above described features are known, but they all have a problem in common which is implicit in the definition itself of “soft closure”: since the spring does not work in the maximum-opening position, in this position the hinge arm or wing is idle, and this will make it difficult to mount the door to the piece of furniture, on fitting of the wing in its base which has been already fastened to the piece of furniture itself. In fact, during mounting of the door, the wing (which must stay close to the maximum-opening position in order to be fitted in the base) may accidentally touch the piece of furniture side and rotate to a position making mounting impossible.
Usually hinges have circular drawn or gauged shapes around the hole for pivotal mounting of the upper connecting rod to the bowl. These drawn shapes mainly aim at eliminating side clearances resulting from coupling between the connecting rod and bowl. However increase of the interference produced by these drawn shapes in order to offer a sufficient braking action to the wing rotation is impossible, because the hinge would be too much blocked in its closure position too, causing a loss of force in the spring mechanism and in its free movement between the open and closed positions.
It is a general aim of the present invention to obviate the above mentioned drawbacks, by providing a hinge with a soft mechanism offering an easier mounting.
SUMMARY OF THE INVENTION
In view of this aim, in accordance with the invention, a hinge for furniture has been conceived which comprises a bowl and a wing connected to each other by connecting rods pivotally mounted to enable a movement between a closed position and an open position of the hinge, an automatic closure mechanism urging the hinge to the closed position when said hinge is brought close to such a closed position, characterised in that the bowl comprises regions of interference with at least one connecting rod when the hinge is close to the open position to offer an increased resistance to said movement over a length thereof close to the open position.


REFERENCES:
patent: 1390579 (1921-09-01), Norquist
patent: 4449269 (1984-05-01), Sunderneier
patent: 4502182 (1985-03-01), Lautenschlager et al.
patent: 4716622 (1988-01-01), DeBruyn
patent: 5027474 (1991-07-01), Bowers
patent: 5029362 (1991-07-01), Prodan
patent: 5655261 (1997-08-01), Cress

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