Washing agent dispenser for a washing machine

Abstract

The invention relates to a cleaning agent (2, 2', 2", 2*), especially suitable for dispensing said cleaning agent (2, 2', 2", 2*) into a tank of a washing machine Dispensers (1, 1', 1", 1*) comprising at least one housing (3, 3', 3", 3*) and metering elements, said housing comprising at least one A reservoir (6, 6', 6", 6*) of a dose, said metering element being provided with at least one movable chamber capable of being positioned in a first position and a second position respectively corresponding to a supply state and a discharge state. Moving between two positions, in the supply state, the cleaning agent (2, 2', 2", 2*) is supplied from the reservoir (6, 6', 6", 6*) to the movable chamber, in the discharge state, said cleaning agent (2, 2', 2", 2*) is discharged from said movable chamber to said tank, characterized in that said dispenser (1, 1' , 1", 1*) including devices (59, 59', 59", 59*, 59^, 59"', 5, 5', 5", 5*, 5^, 5"', 55, 55' , 55", 55*, 55^, 55"'), said device is provided with at least one sliding surface suitable for facilitating the supply and / or discharge of said cleaning agent (2, 2', 2", 2*) (51, 51', 51", 51*, 51^, 51"', 52, 52', 52", 52*, 52^, 52"'). The invention also relates to a method for supplying and discharging cleaning agent through a distributor (1, 1', 1", 1*) comprising at least one housing (3, 3', 3", 3*) , the at least one housing comprises at least one cleaning agent reservoir (6, 6', 6", 6*) and a metering element provided with at least one movable chamber capable of corresponding to Movement between a first position and a second position of a supply state and a discharge state, in which said cleaning agent (2, 2', 2", 2*) passes the inlet (7B, 7B, preferably by gravity) ', 7B", 7B*, 7B^, 7B"') are supplied from the reservoir (6, 6', 6", 6*) into the movable chamber, and in the discharged state, the cleaning agent (2, 2', 2", 2*) are preferably discharged from said movable chamber to said Said tank, characterized in that said method comprises, when said cleaning agent is discharged, will collect in said movable chamber (5, 5', 5", 5*, 5^, 5"') step of discharging air into said reservoir (6, 6', 6", 6*), said air flowing upwards along the sliding surface (52, 52', 52", 52*, 52^, 52"') , the sliding surface is at least partially inclined with respect to the cleaning agent dripping direction (V) in the operating state of the dispenser (1, 1', 1", 1*).

Description

technical field [0001] The invention relates to a cleaning agent dispenser for a washing machine, such as a dishwasher, in particular according to at least the preamble of claim 1, and to a cleaning agent dispenser for supplying and discharging cleaning agent through the dispenser. A method, in particular a method according to at least the preamble of claim 15. Background technique [0002] As is known, washing machines, especially domestic washing machines such as dishwashers, are usually equipped with dispensers for cleaning agents, such as powder, liquid, solid or tablet cleaning agents or additives, which are released during the various washing steps into the sink of the washing machine. [0003] In the case of dishwashers, the detergent typically comprises detergent and / or rinse agent contained in respective reservoirs in communication with respective dispensers which meter and dispense at least one dose of detergent during a wash cycle. Feed into the sink. [0004] ...

AI Technical Summary

Problems solved by technology

[0013] Since the distributor has to be designed very large, this implies a drawback: in fact, taking into account the geometry and kinematics described above, the total volume and horizontal dimensions are more than twice the total volume and horizontal dimensions of the movable chamber. twice as big

[0017] Although this known solution offers several advantages, it is relatively complex and appears to be unsuitable for dispensing liquid cleaning agents, also due to said overpressure, liquid cleaning agents may leak through the metering element and / or the dispensing element and the dispenser housing A mating surface between bodies where the elements are movable, this usually lacks any gaskets or is provided with complex sealing elements

[0018] In this regard, the application mentions another drawback, which takes into account the fact that since the sealing elements (made of rubber or elastomer) are usually provided on mating surfaces between the metering piston and the housing of the translating distributor, they are usually Subjected to frictional wear, e.g. caused by relative sliding of sealing surfaces and / or penetration of powdered cleaning agents, resulting in permanent fracture, cracking or damage of said sealing elements

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