Push-pull closing device
AssigneeElettrotecnica Rold S.R.L.
InventorOnofrio Rocchitelli
Life of this patent
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Abstract
The invention regards a locking device for the closing door of a washing and drying machine, constituted of a body of containment that houses a locking wheel for the door latch, subject to the action of elastic means, a sliding bolt capable of preventing the rotation of said wheel and a time-delay mechanism fitted with a locking pawl for said sliding bolt. The wheel is fitted with a cavity that presents a surface tilted with respect to the plane of rotation, so as to resolve the force it exerts on the bolt, when a pulling is exerted on the door while the device is in a closed and locked position.
Claims4
A locking device for the door of household appliances, comprising a body of containment that houses a door latch locking wheel subject to the action of elastic means, a sliding bolt capable of preventing the rotation of said wheel and a time-delay mechanism to actuate a locking pawl for said sliding bolt, characterized by the fact that the wheel is fitted with a cavity that presents a surface tilted with respect to the plane of rotation, so as to interact with the contoured extremity of the sliding bolt, which is likewise tilted so as to resolve the force exerted by the wheel on the sliding bolt while pulling the door, into two components, one working in the direction of translating the sliding bolt, which is capable of causing the sliding bolt to withdraw and therefore the opening of the door from the inside of the household appliance when the door is closed before actuating the door locking pawl.
Dependencies are inferred from the claim text.