Device for locking the porthole door of washing and drying machines

摘要

An electromagnetic door locking device for a washing machine and similar, adapted to lock a sliding cursor (30) cooperating with the end of a hook mounted on the machine porthole door through a blocking pawl (12). The device comprises two preloaded parallel and mechanically separate metal strips (16, 17), accomplishing the closing and the opening of the power circuit and of the open/closed door circuit, respectively, and that are maintained in the open position by said pawl (12) and by an actuator (13) operated by said cursor (30), when said door is open. (FIG. 1).

主权项

1. An electromagnetic door locking device for a washing machine, having a containment body, said device comprising:
an electromagnet adapted to operate a blocking pawl of a sliding cursor, a power contact strip accomplishing closing and opening of a power circuit of the machine, a door contact strip which detects closure of a door, the blocking pawl of the sliding cursor for blocking and releasing a machine door closing hook and for accomplishing the closing and the opening of the power contact strip, an actuator accomplishing the closing and the opening of the door contact strip, wherein said power and door contact strips are mechanically separate and arranged side by side,wherein said blocking pawl provides for a projection located in correspondence of a free end of the door contact strip for compressing and bending said door contact strip when the door is closed and the pawl is activated, and wherein said pawl is operated by a mechanism formed by a lever pivotable around a pivot pin, which in turn is connected to a slide subjected to the action of elastic means, and actuated by a core of said electromagnet and constrained by a hooking and releasing mechanism.