IP Library › Granted Patent US 8,733,802
Granted Patent B2
US 8,733,802 · App. 13/481,805 · Granted May 27, 2014

Door-locking device for locking the door of household appliance

Inventors: Fabrizio Promutico (Turin, IT); Gianpaolo Barone (Turin, IT); Andrea Saccocci (Turin, IT)
Assignee: Bitron S.p.A.
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Quick Facts
Patent No.
US 8,733,802
App. No.
13/481,805
Granted
May 27, 2014
Kind
B2
Abstract

A door-locking device for locking a door of a household appliance, the door providing a closure hook, and at least a gasket provided on the door and/or on the household appliance. The device providing a locking hook, coupling with the household appliance closure hook, a slider, movable along a direction substantially parallel to a household appliance wall on which the door is provided, a recovery lever compensating for clearance of the gasket sealing closure, and a mechanical coupling for the locking hook and the recovery lever, the locking hook being rotably coupled with the mechanical coupling and being movable according to a direction substantially perpendicular with respect to the movement direction of the slider, an elastic arm being further provided in a second embodiment, aiming to maintain the mechanical coupling in a door closure position, and interaction elements arranged between the slider and the mechanical coupling for locking each other in the door closure position.

Claims (31)

1. A door-locking device comprising:

a locking hook having at one end a coupling slot configured to engage a door closure hook and also having a slidable appendix at an opposite end;

a slider having at one end a slot configured to receive the appendix therein and also having a seat formed thereunder;

a locking pin configured to engage the seat and stop movement of the slider when the slider moves over the pin;

a clearance recovery lever;

a mechanical coupling configured to connect the locking hook to the lever; and

a spring configured to push the mechanical coupling upwardly;

wherein said locking hook is rotatably coupled with said mechanical coupling and movable between an opening position, where said locking hook is disengaged from said door closure hook, and a closing position, where said locking hook is engaged with said door closure hook; and

wherein said appendix of said locking hook is movable in a direction substantially perpendicular with respect to said slot.

2. The door-locking device according to claim 1 , wherein the mechanical coupling has a front seat configured to couple with the locking hook.

3. The door-locking device according to claim 1 , wherein the mechanical coupling has a central seat configured to receive the slider.

4. The door-locking device according to claim 1 , wherein the mechanical coupling has a projection mounted thereon.

5. The door-locking device according to claim 4 , wherein the slider has mounted on a side thereof a projection configured to interact with the projection mounted on the mechanical coupling.

6. The door-locking device according to claim 1 , further comprising:

a base element configured to support the lever.

7. The door-locking device according to claim 6 , further comprising:

a pivoting pin mounted on the base element and configured to allow rotation of the lever thereabout.

8. The door-locking device according to claim 1 , wherein the mechanical coupling has a seat formed thereunder and configured to receive the locking pin.

9. The door-locking device according to claim 8 , wherein the slider has mounted on a side thereof a relief piece configured to interact with the seat formed under the mechanical coupling.

10. The door-locking device according to claim 9 , wherein the relief piece has a triangular shape.

11. The door-locking device according to claim 9 , wherein the slider includes an elastic arm configured to connect the relief piece thereto.

12. The door-locking device according to claim 11 , wherein the relief piece has a triangular shape.

13. A door-locking device comprising:

a locking hook having at one end a coupling slot configured to engage a door closure hook and also having a slidable appendix at an opposite end;

a slider having at one end a slot configured to receive the appendix therein and also having a seat formed thereunder;

a locking pin configured to engage the seat and stop movement of the slider when the slider moves over the pin;

a clearance recovery lever;

a mechanical coupling configured to connect the locking hook to the lever; and

a spring configured to push the mechanical coupling upwardly;

wherein said locking hook is movable between an opening position, where said locking hook is disengaged from said door closure hook, and a closing position, where said locking hook is engaged with said door closure hook; and

wherein said appendix of said locking hook is movable in a direction substantially perpendicular with respect to said slot.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 16, 2012
From: PROMUTICO, FABRIZIO; BARONE, GIANPAOLO; SACCOCCI, ANDREA
To: BITRON S.P.A.
Reel/Frame 028561/0357 →
Priority Claims (1)
IT RM2009A0622 · Nov 26, 2009 · national
Continuity (2)
Continuation PCTIT2010000426 · Oct 21, 2010
Related Publication 20120292924A1 · Nov 22, 2012