US 11,988,020 B2
Modular door-lock system
Fabrizio Promutico, Turin (IT)
Assigned to BITRON S.P.A., Turin (IT)
Filed by BITRON S.P.A., Turin (IT)
Filed on Nov. 9, 2021, as Appl. No. 17/454,062.
Claims priority of application No. 102020000026906 (IT), filed on Nov. 11, 2020.
Prior Publication US 2022/0145665 A1, May 12, 2022
Int. Cl. E05B 47/00 (2006.01); E05B 65/00 (2006.01); E05C 3/02 (2006.01); F24C 15/02 (2006.01)
CPC E05B 47/0012 (2013.01) [E05B 65/00 (2013.01); E05C 3/02 (2013.01); F24C 15/022 (2013.01); E05B 2047/0016 (2013.01); E05B 2047/0017 (2013.01); E05B 2047/002 (2013.01); E05B 2047/0068 (2013.01); E05B 2047/0069 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A door-lock system(s) for a household appliance, wherein said household appliance is of the type comprising a frame and a door hinged to said frame, and wherein said door-lock system(s) comprises:
an engaging member, fixable to said door of said household appliance, and comprising a prong and a security member arranged substantially parallel to said prong; and
a door-lock device, comprising
a containment casing fixable to the frame of said household appliance,
a blocking group, intended to engage with and hold said engaging member, the blocking group comprises:
a rotating hook arranged within said containment casing, and capable of rotating from a resting position, in which said prong is not engaged with said rotating hook, to an operating position, in which said prong is engaged and blocked by said rotating hook, so as to hold said door closed;
a blocking member, related to said rotating hook, such that, when said rotating hook is in said resting position, said blocking member assumes a closing position, preventing the insertion of said security member within said containment casing, and that, when said rotating hook is in said operating position, said blocking member assumes an opening position, allowing the insertion of said security member within said containment casing;
a security detecting unit configured to interact with said security member, so as to detect when said security member is inserted or not inserted within the containment casing;
wherein said containment casing comprises a base and a lid, arranged on said base, for closing said containment casing, wherein said base has a first opening and a second opening arranged alongside said first opening;
wherein said prong is insertable in said first opening, and said security member is insertable in said second opening;
wherein said blocking member is arranged in the proximity of said second opening and is connected to said rotating hook;
wherein said base of said containment casing comprises a sliding guide fixed to said base;
wherein said blocking member comprises a first portion having an opening, and a second portion, fixed to said first portion and comprising a guide for said rotating hook, and
wherein said first portion is constrained to slide along said sliding guide so that, when said blocking member is in said closing position, said second opening and said opening are not overlapping with each other, thereby preventing insertion of the security member through the second opening, and that, when said blocking member is in said opening position, said second opening and said opening are at least partially overlapping with each other, thereby allowing insertion of said security member through the second opening and said opening.