US 20110083478 A1
An automatic washing machine has an overlying lid attached to the fixed drum of the washing machine drum set, so as to provide a more homogeneous distribution of the powder detergent used in the washing of clothes.
1. An automatic washing machine comprising:
an internal drum comprising a fixed drum holding a concentric rotating drum inside said fixed drum;
a dispenser attached to a top panel of the washing machine above said drum, said dispenser mixing water and detergent that is poured into the washing machine; and
an overlying lid attached to the fixed drum by latches, said lid being located between the dispenser and the internal drum, said lid having a semi-circular projection located beneath the dispenser and having oblong orifices.
Applicant claims priority under 35 U.S.C. §119 of Brazilian Patent Application No. MU 8901999-7 filed Sep. 23, 2009.
This invention relates to an improvement made to an automatic washing machine. More precisely, the invention relates to a constructive device applied to the lid over the washing machine drum, in order to provide a more homogeneous distribution of the powder detergent and prevent stains on the clothes.
The automatic washing machines known to this date contain a dispenser coupled to the top panel, whose function is to store the powder detergent and have it mixed and dissolved in the clothes washing water.
Usually, this container is located at the top panel, above the water drum containing the clothes to be washed, and receive an amount of water propelled by the local water piping through a solenoid valve, so as to mix the powder detergent to the washing water and thereby form a mix of water and dissolved detergent to clean the clothes in the drum.
The washing machine drum is formed by a concentric set comprised of a fixed drum and a rotating drum.
However, it is known that these dispensers coupled to the top panel over the washing machine drum simply pour the mix of water and detergent directly onto the clothes placed inside the drum. The powder detergent in the water mix poured onto the clothes is not always dissolved and, consequently, some detergent grains fall onto the clothes and spread over them, as some pieces or parts of clothes are not fully submerged in the washing water. In this case, it takes longer for the powder detergent to dissolve, which decreases the efficiency of the washing and creates the possibility of stains the clothes, depending on the type of fabric used.
Due to such inconvenience, an improvement was developed on the part located on the edge of the washing machine drum and above the dispenser, specially designed to promote a more homogeneous distribution of the water and powder detergent, preventing the undissolved detergent powder from falling onto the clothes that are not submerged in the washing machine drum water.
The improvement made to the lid placed over the washing machine drum is explained in details in the attached images.
As shown in
As shown in
The latches (6) on the overlying lid (3) are meant to fix the overlying lid onto the fixed drum (5).
The description above demonstrates the best use provided by the new constructive device applied to an overlying lid (3) to the drum set (1) of automatic washing machines.