RU2541501C2 - Washing machine with improved circuit for supply of detergent/rinsing liquid - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: washing machine (1) contains: a washing tank (5) containing a rotary perforated drum (6); a detergent solution/rinsing liquid dispenser (8) containing a body (9) and a bin (10) detachably connected to the body (9) and equipped with one or several compartments (11a, 11b) to be filled with detergent agents and/or rinsing agents; the detergent agents/rinsing agents dispenser contains a water distributor (14) equipped with at least two inlet connections (15a, 15b) connected (upstream) to the water source and hydraulically connected (downstream) to an air gap (16); at least two channels (17a, 17b) branch out of such air gap; at least two channels are hydraulically connected to the inlet connections (15a, 15b) and intended for water transmission into the compartments (11a, 11b), a water supply line (13) hydraulically connected to the said hydraulically connected detergent agents/rinsing agents dispenser (8) and the said tank (5). The detergent agents/rinsing agents dispenser (8) contains a by-pass line (20), is hydraulically connected (upstream) to at least one of the inlet connections and continues significantly from the said air gap (16); the by-pass line is hydraulically separated from the channels (17a, 17b) and from the compartments (11a, 11b) and is intended for pure water flow supply from the detergent agents/rinsing agents dispenser (8) into the tank (5).

EFFECT: design improvement.

22 cl, 17 dwg

Description

The present invention relates to a washing machine with an improved washing / rinsing liquid supply circuit.

Currently, washing machines, including ″ simple ″ washing machines (i.e., washing machines that only wash and rinse the laundry) and washer-dryers (i.e. washing machines that can also dry the laundry) usually contain an outside a housing equipped with a loading / unloading door that provides access to a washing tub containing a rotatable perforated drum into which laundry can be placed.

Water and washing products or rinsing products (i.e. detergents, softeners, bleaches, etc.) are supplied to the tank and, therefore, to the rotating drum contained in the latter by a water supply circuit connected to a water supply system outside cars; After the washing and rinsing phases, the water is drained from the tank by the drain circuit.

The water supply circuit contains a first water conduit connected hydraulically, downstream, to the tank, and upstream, to the bottom of the housing connected to the housing containing a removable hopper equipped with different compartments for filling with detergents and / or rinses.

The water supply circuit also includes a water dispenser located above the hopper and connected hydraulically, upstream, usually through the corresponding electromagnetic inlet valves, with one or more water conduits hydraulically connected to the water supply.

The water dispenser is organized in such a way that, acting on the solenoid valves, it is possible to supply clean (or fresh) water coming from the water supply to one or more sections of the hopper to flush the funds contained in them, which as a result fall to the bottom of the body, and from there through the first conduit to the tank. Typically, the water dispenser contains a so-called ″ air gap ″ or ″ air gap ″, i.e. a gap or hole formed on the water path inside the water dispenser in such a way that only a stream of water of the corresponding direction can pass through this gap to the tank, and water from the tank into the water supply cannot pass through this gap (as can happen, for example, in in case of a malfunction of the drain circuit, if no air gap is provided).

A washing machine of this type is presented, for example, in EP 0597274, which discloses a household type washing machine for clothes, which comprises a washing tub, a drum for clothes for washing, a water pipe for supplying water from a water pipe, an electromagnetic valve in a water supply pipe, a first side water pipe located along the solenoid valve, which supplies water from the water supply to the detergent dispenser through the air gap; the dispenser is located above several compartments designed to accommodate detergents and rinses and interacting with a siphon located between the compartments and the washing tank, through a water conduit that transfers water to the siphon mixed with a washing solution or rinse that flows from the compartments.

This washing machine also contains a second side duct, equipped with an appropriate air gap and located between the solenoid valve and the air gap that goes into the duct connecting the compartments and the siphon. The air gap is formed by interruption generated by an injector located in the vertical lowering section of the second side duct; water leaving the injector enters the water conduit. However, this washing machine has such a drawback that it cannot guarantee that the laundry can be soaked with clean water before the mixed water and detergents are fed into the tank. In fact, since the second side conduit goes to the conduit connecting the compartments and the siphon, even if clean water is supplied to the second side conduit, it is possible that this clean water will be mixed with detergents and / or rinses before it enters the tank. that remain in the conduit or in the siphon.

However, soaking the laundry with clean water before the detergent is dispensed will be desirable since the effect of the detergent on the laundry soaked in clean water is faster and more effective. Moreover, the presence of a second side circuit increases the complexity of the washing machine, and also causes problems (for example, less space for other components inside the outer casing of the washing machine, difficulty in complying with external dimensions, etc.).

EP 1568814 discloses a detergent dispenser for a washing machine, comprising a box-shaped recess and a detergent hopper movably mounted in the recess; this hopper is equipped with several separate compartments for the placement of detergents and / or rinses, which are washed off by the incoming stream of water into the tank of the washing machine. As soon as water passes through the compartments, the mixture of water and detergent passes through the holes located in the back of the hopper and is transferred to the back of the recess, and then to the drain hole in the tank of the machine.

To prevent the accumulation of detergent residues in the front and rear sections of the recess, this recess has a channel on the lower surface on the side that represents the supply end of the section fed by the water dispenser and a curved second end of the section that directs the flow of water to the front and lower sections of the recess; fresh water supplied to the final section of the channel as a result is sent to the front and lower sections of the recess, cleaning the area from residues of detergent.

And again, in this case, there is a problem, which is that it is not guaranteed that the laundry is soaked with clean water before the water mixed with detergents is fed into the tank; in fact, the channel for clean water goes to the front and bottom of the recess, where there may be residues of detergents that can mix with fresh water.

EP 0719884 A1 describes a washing machine equipped with a detergent supply mechanism, which comprises at least one fresh water inlet, an outdoor air channel located downstream, a water supply channel for supplying fresh water to the detergent chamber and a drainage channel fresh water connected to the above channel after the outdoor air channel with respect to the flow direction through the air inlet channel and the above channel. Preferably, the drain channel is connected to a water passage for the preliminary chamber of the detergent. Preferably, the machine has a front loading door with a window, and the outlet channel is connected to a nozzle directed from above to the inner surface of the window.

However, this washing machine also has a drawback; in fact, the side channel is hydraulically connected to the detergent pre-chamber, and the supply of fresh water to the side channel always includes the fresh water supply also to the detergent pre-chamber, in which there may be residues of detergent that can enter the fresh water tank. As a result, it is impossible to supply only fresh water to the side channel, and in this case, the possibility of soaking the laundry only with fresh water is not guaranteed until the water mixed with the detergent is fed into the tank. Moreover, the presence of a side channel increases the complexity of the washing machine and causes problems.

EP 1595991 A1 describes a washing machine for washing fabrics, which comprises: a common water distribution manifold, several solenoid valves located after the water distribution manifold and connected to respective outlet lines, an additional chamber into which a water stream is generated by crossing the outlet lines, while the nozzle located in the bellows is fed by a stream of water in the fifth channel, which has an appropriate air gap and begins before crossing lines; the initial sections of the discharge lines and the fifth channel in front of the air gaps are a separate integral component that is connected to the node of the flat water conveyors and the above fifth channel for the air gaps.

Thus, it is an object of the present invention to provide a washing machine that selectively adds clean or fresh water to a tank without risking contact of the water with a detergent or rinse prior to being supplied to the tank. Another objective of the present invention is the addition of clean or fresh water to the tank without increasing the complexity or size of the water and / or detergent circuit in the tank.

Another objective of the present invention is to reduce the cost of assembling a circuit for adding water and / or detergents to the tank.

Thus, the aim of the present invention is to solve the above problems, which eliminates the disadvantages of the above prior art.

The applicant has determined that by using a bypass line connected hydraulically to a water source, extending mainly from the air gap in the water distributor of the washing solution / liquid dispenser for rinsing the washing machine, and hydraulically separated from the channels designed to supply water to the compartments for filling detergents and / or rinses, you can selectively supply clean or fresh water to the tank without risk of the latter coming into contact with a detergent or agent rinse before entering the tank.

Namely, the above goals and objectives, as well as other goals and objectives that will become more obvious in the future, are achieved and solved by a washing machine, characterized by the features of paragraph 1 of the claims.

The detergent / rinse aid dispenser comprises a bypass line connected hydraulically upstream with at least one of the inlet fittings and extending generally from the air gap, the bypass line is hydraulically separated from the channels and from the compartments and is intended to supply a stream clean water from the dispenser of the washing solution / rinse liquid to the tank.

Advantageously, the bypass line comprises a first section of the channel extending generally from the air gap to the section of the water distributor that the channels do not touch, the first section of the channel is connected hydraulically, upstream, to one or more inlet fittings, and is hydraulically separated from one or more compartments.

In the first embodiment, the first section of the channel extends from the air gap, generally longitudinal along the water distributor to the frontal end of the water distributor.

In a further embodiment, the first channel portion extends to the rear end of the water distributor.

Advantageously, the bypass line comprises a second channel section hydraulically connected upstream to the first channel section and, downstream to the tank, the second channel section is hydraulically separated from one or more compartments.

Advantageously, the second section of the channel is located on / on the side wall of the housing.

Advantageously, a second channel portion is formed adjacent to the front end of the housing, opposite the inlet fitting.

In another embodiment, the second channel portion extends generally longitudinally along the side wall of the housing.

In a further embodiment, a second channel portion is provided at least partially in / on the housing and at least partially in / on the hopper.

In a further embodiment, the second channel section is completely in / on the hopper.

Advantageously, the second section of the channel is located between the bottom of the hopper and the outer tray attached to such a bottom.

In a further embodiment, the second duct section is an integral structure with a hopper, so that the second duct section is hydraulically separated from the compartments.

Preferably, the second section of the channel is connected hydraulically, downstream, to the water supply line, through an opening in the housing.

In accordance with another aspect of the present invention, the water supply line comprises one or more integral elements comprising a first water conduit hydraulically connected to one or more compartments and a tank, and a second water conduit separated hydraulically from the first conduit, the second water conduit is hydraulically connected upstream, with a bypass line, and is connected hydraulically, downstream, with the tank, the first and second water conduits represent an integral design.

In a further embodiment, a recirculation loop is provided for draining the washing liquid / rinse liquid from the bottom of the tank and re-supplying this circulating washing liquid / rinse liquid to the upper part of the tank, the recirculation loop is connected hydraulically to the second conduit of one of the one or more integral elements so that the circulating washing liquid / rinse is supplied to the tank through the second water line.

The features and advantages of the present invention will be better understood from the description, which is presented below by way of non-limiting example with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of a washing machine in accordance with this invention, in which some internal components that are not visible from the outside are represented by dashed lines;

FIG. 2 is a side view, partially in section, of the washing machine of FIG. one;

FIG. 3 is a perspective view, partially in section, of a particular washing machine illustrated in FIG. 1 and 2;

FIG. 4 is a plan view of a dispenser of a washing solution / liquid for rinsing a washing machine shown in the previous figures;

FIG. 5 is a perspective view of a dispenser of a washing solution / rinse liquid of FIG. 4, in a section through the plane V-V of FIG. four;

FIG. 6 is a perspective view of a dispenser of a washing solution / rinse liquid of FIG. 4, in a section through the plane VI-VI of FIG. four;

FIG. 7 is a plan view of a second embodiment of a washing solution / rinse dispenser for rinsing a washing machine in accordance with this invention;

FIG. 8 is a perspective view of a dispenser of a washing solution / rinse liquid of FIG. 7, in the context of the plane VIII-VIII of FIG. 7;

FIG. 9 is a perspective view of a dispenser of a washing solution / rinse liquid of FIG. 7, in the context of the plane IX-IX of FIG. 7;

FIG. 10 is a plan view of a third embodiment of a detergent solution / rinse dispenser for rinsing a washing machine in accordance with this invention;

FIG. 11 is a perspective view of a dispenser of a washing solution / rinse liquid of FIG. 10, in sectional view of the plane XI-XI of FIG. eleven;

FIG. 12 is an enlarged detail of FIG. eleven;

FIG. 13 is a perspective view of a dispenser of a washing solution / rinse liquid of FIG. 10, in the context of the plane XIII-XIII of FIG. 10;

FIG. 14 is a first perspective and exploded view of a detergent / rinse dispenser dispenser of FIG. 10;

FIG. 15 is a second perspective and exploded view of a detergent / rinse dispenser dispenser of FIG. 10;

FIG. 16 is a perspective view of a detail of a further embodiment of a washing machine in accordance with this invention;

FIG. 17 is a perspective view, partially in section, of a detail of the washing machine of FIG. 16.

In accordance with the invention, there is provided a washing machine 1, comprising an outer casing 2, in which there is a loading hatch 3, equipped with a loading / unloading door 4, which provides access to the washing tub 5 contained in the outer casing 2, and which, in turn, contains a rotating , a perforated drum 6, in which laundry is loaded, not illustrated in the figures.

In the embodiments illustrated in the attached figures, the washing machine 1 is a ″ simple ″ washing machine (i.e., a washing machine that can only wash and rinse the laundry), with a front loading type, in the following, non-illustrated embodiment of the present invention, a washing machine it can be a ″ simple ″ top-loading washing machine, or also a washer-dryer (i.e. washing machines that can also dry clothes) of the front and top loading types.

Referring to the attached figures, the tank 5 of the washing machine 1 is connected to the outer casing 2 through a flexible seal 7, located between the front, open surface of the tank 5, facing the loading hatch 3, and the edge of the latter.

The washing machine 1 comprises a dispenser of the washing solution / rinsing liquid 8 (i.e., a device for supplying water and / or water mixed with detergents or rinsing agents), which has a box body 9 connected to the outer case 2, inner side to the latter, preferably with suitable fastening means, representing, for example, bolts or rivets, not illustrated, as well as glue or welding.

In the attached figures, the casing 9 is basically a parallelepiped, and it is connected to the front surface 2a of the outer casing 2, preferably in the upper part of the latter, located above the tank 5. The casing 9 contains a removable hopper 10, which can be removed from the casing 9 so that it protrudes from the outer casing 2 in the loading position illustrated, for example, in FIG. 2, or can be fully inserted into the housing 9 in the operating position illustrated, for example, in FIG. 1 and 3. The hopper 10 is equipped with one or more compartments 11a, 11b intended to be filled with non-illustrated detergents and / or rinses, such as, for example, powder or softener.

In the embodiment illustrated in FIG. 4, 5 and 6, there are two compartments, 11a and 11b, one for receiving detergent for washing clothes, and the other for receiving a softener; in another embodiment, not illustrated, there may be, for example, another compartment intended, for example, to fill the detergent used before washing.

The compartments 11a, 11b are hydraulically connected to the bottom 9a of the housing 9, namely, to the frontal section of the bottom 9a, in which an outlet 12 is formed, which is designed to output the fluid flow to the water supply line 13, the description of which will be presented later by connecting the washing solution dispenser / rinsing liquids 8 with a tank 5.

It should be noted that this application states that the first component is ″ separated hydraulically ″ from the second component so that liquid from the first component cannot enter the second component and vice versa; and vice versa, if it is said that the first component is ″ hydraulically connected ″ with the second component, this means that liquid can flow from the first component to the second component and vice versa.

Advantageously, the detergent / rinse agent dispenser 8 comprises a water distributor 14 connected to the housing 9 and placed above the hopper 10 so as to supply a stream of water to one or more compartments 11a, 11b. Advantageously, the water distributor 14 comprises two or more inlet fittings 15a, 15b connected upstream to a water supply source, which may be the plumbing system of the building in which the washing machine 1 is installed.

It should be noted that in this application, the terms ″ upstream ″ and ″ downstream ″ indicate the direction of fluid flow during standard operation of the washing machine; for example, if it is said that the first component is connected hydraulically, upstream, with the second component, this means that during the standard operation of the washing machine, liquid enters first into the second component, and then into the first component; if it is said that the first component is connected hydraulically, downstream, to the second component, this means that during the standard operation of the washing machine, liquid flows first into the first component and then into the second component.

Advantageously, the inlet fittings 15a, 15b can be connected to a water source through adjustable valves 40, preferably of an electromagnetic type, mainly controlled by an electronic control device, also not illustrated, for controlling the operation of the washing machine 1. In the embodiments illustrated in the attached figures, two inlet fittings 15a, 15b; each inlet fitting 15a, 15b may be connected through a dedicated adjustable valve 40 to a water source for supplying cold water.

In the embodiment illustrated in the attached figures, there is also an additional inlet fitting 15 s connected upstream through a dedicated adjustable valve to a water source; warm or hot water supplied, for example, by a solar thermal collector, can be supplied through an additional inlet fitting 15 s, the next un illustrated embodiment may have more than one additional inlet fitting which are connected to one or more water sources.

Advantageously, the inlet fittings 15a, 15b are connected hydraulically, downstream, to the “air gap” or “air gap” 16, from which at least two channels 17a, 17b, which are connected hydraulically to the inlet fittings 15a, 15b, and each of which is hydraulically connected to another section 18a, 18b of the water distributor 14, which is located so as to be located above a specific compartment 11a, 11b of the hopper 10 when the latter is above the above working position; sections 18a and 18b of the water distributor 14 have one or more openings 19, designed for the passage of water from the channels 17a, 17b into the downstream compartment 11a, 11b. As will be explained in detail below, by acting on the adjustable valves, it is possible to selectively supply water from a water source to one or the other channels 17a or 17b.

In another non-illustrated embodiment, in the hopper 10 there are more than two compartments, and in the water distributor 14 there are the same number of channels, each of which is connected hydraulically to another section of the water distributor 14, which is positioned so as to be located above the other compartment of the hopper 10, when the last It is installed in the above working position; also in this case, acting on the adjustable valves, it is possible to selectively supply water to the desired channel from the water source.

In the embodiments illustrated in the attached figures, there is also an additional nozzle 15c into which warm or cold water can be supplied, for example, from a solar thermal collector, hydraulically connected to a portion 18a of the water distributor 14 in such a way as to also supply warm or hot water to the located below compartment 11a.

Advantageously, the detergent / rinse agent dispenser 8 also comprises a bypass line 20 connected hydraulically upstream with at least one of the inlet nozzles, preferably protruding (i.e., continuing, formed) from the air gap or the air gap 16, and hydraulically separated from compartments 11a, 11b; the bypass line is also designed to supply a stream of clean (or fresh) water from the water distributor 14 to the tank 5 through the dispenser 8 of the washing solution / rinse liquid.

The fact that the bypass line 20 is hydraulically separated from the compartments 11a, 11b means that the bypass line 20 is formed so that a stream of clean (or fresh) water coming from one or more inlet fittings 15a, 15b and passing through the air gap or air the gap 16, can enter the bypass line 20, without entering one of the channels 17A, 17b.

As will be explained in detail below, by acting on the adjustable valves 40 connected to the inlet fittings 15a, 15b, water coming from the water source can be supplied to the bypass line 20.

In the embodiment illustrated in the attached figures, when only the adjustable valve 40 connected to the inlet fitting 15b is opened, a stream of clean or fresh water enters the water distributor 14, passes through the air gap 16 and enters the bypass line 20. As a result, the bypass line 20 through the dispenser of the washing solution / rinse liquid 8 provides a supply of clean or fresh water coming from the water supply and sent to the tank 5, thereby ensuring that this water does not come into contact with the detergent or the mind softener, which may be in the dispenser of washing solution / rinse 8.

Advantageously, as will be described in detail below, the bypass line 20 comprises a first section of the channel 21 located in the area of the water distributor 14, to which the channels 17a and 17b are not connected, and hydraulically connected, upstream, to one or more inlet fittings 15a, 15b; the first portion of the channel 21 is preferably hydraulically separated from the compartments 11a, 11b.

Advantageously, the first portion of the channel 21 also comprises a tubular portion 21a protruding towards the underlying hopper 9; it is obvious that the tubular portion 21a may not be included.

Advantageously, the bypass line 20 also comprises a second section of the channel 22, connected hydraulically, upstream, with the first section of the channel 21 located above; the second section of the channel 22 is connected hydraulically, downstream, to the tank 5, and is separated hydraulically from the compartments 11a, 11b.

In the first embodiment illustrated in FIG. 1-6, the first section of the channel 21 protrudes (i.e., continues, forms) mainly from the air gap or the air gap 16 and extends substantially along the water distributor 14, almost to the frontal end 14a of the water distributor 14. In this case, the second section of the channel 22 is predominantly located on / on the side wall 9b of the housing 9, mainly adjacent to the frontal end 9c of the housing 9 opposite the inlet fitting 15a, 15b.

Advantageously, the second portion of the channel 22 illustrated in the embodiment of FIG. 1-6, is formed along the non-illustrated axis, substantially perpendicular to the bottom 9a of the housing 9.

Advantageously, in the embodiment illustrated in FIG. 1-6, the second section of the channel 22 is formed in the form of an integral structure with the housing 9, so that it is hydraulically separated from the compartments 11a, 11b.

In a further, non-illustrated embodiment, the second portion of the channel 22 may be a suitable external element (e.g., pipe or tube) (not illustrated) attached to the side wall 9b of the housing 9, for example by adhesive or welding, or fastening.

In the second embodiment illustrated in FIG. 7-9, the first section of the channel 21 is very short and preferably extends to the rear end 14b of the water distributor 14. Also in this case, the first section of the channel 21 mainly comprises a tubular section 21a, protruding to the underlying bunker 9; it seems obvious that the tubular portion 21a may also not be provided.

Advantageously, as shown in FIG. 7, in this second embodiment, the first portion of the channel 21 in plan view is generally semi-circular.

Advantageously also in this second embodiment, the second portion of the channel 22 is located on / on the side wall 9b of the housing 9; in this case, the second section of the channel 22 extends longitudinally along the side wall 9b of the housing 9.

Advantageously also in the embodiment illustrated in FIG. 7-9, the second portion of the channel 22 is formed as a one-piece structure with the housing 9 so as to be hydraulically separated from the compartments 11a, 11b.

In a further, non-illustrated embodiment, the second portion of the channel 22 may be a corresponding external element (e.g., pipe or tube) (not illustrated) attached to the side wall 9b of the housing 9, for example by glue or welding, or fastening.

In the third embodiment illustrated in FIG. 10-15, the first portion of the channel 21 is in plan view substantially similar to the portion illustrated in FIG. 7-9, and also contains a tubular section 21A, protruding towards the underlying bunker 9.

Advantageously, but not necessarily, the tubular portion 21a may be formed as an integral structure with a water distributor 14. In an embodiment, the second portion of the channel 22 is provided on / on the hopper 10 and is formed so that it is hydraulically connected upstream when the hopper 10 is in the operating position illustrated, for example, in FIG. 11 and 12, with the tubular portion 21a of the first portion of the channel 21, and downstream of the tank 5.

In the embodiment illustrated in FIG. 10-15, a second portion of the channel 22 is formed between the bottom 10a of the hopper 10 and the outer tray 50 attached to the specified bottom 10a; in a further unexemplified embodiment, the second section of the channel 22 is formed as an integral structure with a hopper 10, so that this second section of the channel 22 is hydraulically separated from the compartments 11a, 11b.

In this third embodiment, the second portion of the channel 22 is connected hydraulically, downstream, to the water supply line 13 through a corresponding hole 24 formed in the housing 9 and hydraulically separated from the outlet 12.

The hole 24 is formed in such a way that it is provided for the flow of clean or fresh water coming from the second section of the channel 22; in the embodiment illustrated in FIG. 10-15, the opening 24 is preferably formed in the housing 9 in a position above the outlet 12, so that the liquid present on the bottom 9a of the housing 9 can exit into the outlet 12, but not into the hole 24.

Obviously, the first section of the channel 21 formed in the water distributor 14 can generally have any design (provided that it is formed in the area of the water distributor 14 not affected by the channels 17a and 17b, i.e., connected hydraulically, upstream, to one or more inlet fittings 15a, 15b, and that it is hydraulically separated from compartments 11a, 11b).

Similarly, the second section of the channel 22 can be formed only in the housing 9, partially in the housing 9 and partially in the hopper 10, or completely in the hopper 10, and it can have any shape (provided that it is connected hydraulically, upstream, with the overlapping first section of the channel 21, connected hydraulically, downstream with the tank 5, and hydraulically separated from the compartments 11a, 11b).

Thus, in all of the above embodiments, the bypass line 20 formed in the detergent / rinse dispenser 8 is hydraulically separated from the compartments 11a, 11b, and allows fresh or clear water flowing towards it to flow from adjustable valve connected to a water source.

Advantageously, the above-mentioned water supply line 13 connecting hydraulically the bottom 9a of the housing 9 to the tank 5 so that the water flow mixed with detergents and rinses contained in the compartments 11a, 11b, enters the tank 5, contains one or more integral elements (for example, the elements indicated with reference numbers 13a and 13b in the attached figures) comprising a first channel 25 hydraulically connecting the compartments 11a, 11b and tank 5, and a second channel 27 hydraulically separated from the first channel 25, hydraulically connected, upstream y, with the water source, and connected hydraulically downstream of a tank 5.

Advantageously, the first and second channels of each integral element are formed into an integral structure, preferably by injection molding of a plastic material, so that the first and second channels form a single housing.

Mostly, but not necessarily, the first and second conduits of a single element are substantially parallel to each other.

Advantageously, at least one or more integral elements can be formed into an integral structure with a housing 9; alternatively, at least one of the one or more integral elements can be attached to the housing, preferably by welding and / or glue, and / or fastening.

For example, in the embodiments illustrated in the attached figures, the water supply line 13 comprises two integral elements 13a, 13b connected in series so that the first water ducts 25 are hydraulically connected to each other and the second water ducts 27 are hydraulically connected to each other.

In these embodiments, the integral element 13a is advantageously formed into the integral structure with the housing 9, and is connected hydraulically, downstream, to the integral element 13b, which in turn is connected downstream with the corresponding hole 26, preferably formed in the upper portion of the seal 7.

The second conduit 27 of the integral element 13a is advantageously connected hydraulically to the bypass line 20, downstream of the latter, so that clean or fresh water can flow from the bypass line 20 to the second conduit 27.

Advantageously, the outlet 27a of the second water conduit 27 of the integral element 13b is formed in such a way that the flow of clean or fresh water exiting from it is oriented towards the upper central portion of the rotating perforated drum 6; this can be obtained by forming a suitable outlet shape 27a or a suitable un illustrated illustrated outlet connected hydraulically to the terminal 27a, or a suitable design of a seal 7 or hole 26 formed in the latter.

In the example illustrated in the attached figures, the outlet 27a of the second water conduit 27 of the integral element 13b is positioned substantially in accordance with the upper portion of the seal 7; such an arrangement of terminal 27a is preferred rather than mandatory.

Advantageously, two adjacent integral elements (for example, the integral elements 13a and 13b illustrated in the attached figures) are attached to each other by a waterproof fastener, preferably by welding and / or glue, and / or a fastener.

Advantageously, between two adjacent integral elements (for example, the integral elements 13a and 13b illustrated in the attached figures) there is an un illustrated sealing element.

In another non-illustrated embodiment, there may be more than two solid elements connected in series with each other.

In a further embodiment, also not illustrated, the water supply line 13 contains only one integral element, combined in this case with the water supply line 13, formed in an integral structure with the housing 9.

In the following also not illustrated embodiment, the water supply line 13 contains only one integral element, also combined in this case with the water supply line 13, which can be formed, for example, by injection molding of plastic material, and which can be attached to the housing 9, for example, by welding and / or glue and / or fastening.

In any case, in all the embodiments illustrated in this application, regardless of the number of integral elements connected in series, the second conduits 27 of one or more integral elements 13 are hydraulically connected, upstream, with a bypass line 20, and, downstream, with the tank 5 so that a stream of fresh or clean water can flow from the bypass line 20 to the second water conduit 27.

However, it must be emphasized that the second water conduits 27 of one or more integral elements 13 can also be connected hydraulically, upstream, directly to the water source, i.e. without connection to the bypass line; in this case, these second water conduits 27 may be connected to a water source, for example, through a corresponding pipe or pipe.

In the following embodiment, illustrated in FIGS. 16 and 17, the washing machine 1 also comprises a recirculation loop for draining the washing / rinsing liquid (i.e., water or water mixed with detergents and rinses) from the bottom of the tank 5 and re-supplying this circulating detergent / rinse liquid to the top of the tub 5 to improve the wetting of the laundry in the tub 5.

Advantageously, the recirculation loop comprises an un-illustrated drain circuit connected to the bottom of the tank 5 and equipped with a pump (not illustrated) for removing the washing liquid / rinsing liquid from the bottom of the tank 5 and re-supplying the circulating washing liquid / rinsing liquid to the rotary perforated drum 6 , usually from the top of the latter to the inlet tube 28.

In the washing machine 1 in accordance with this invention, the inlet pipe 28 is mainly poured into the second water duct 27 or the integral element 13b; in this case, the second conduit 27 of the integral element 13b can also be used to overflow into the circulating washing liquid / rinsing fluid 6.

Obviously, if the water supply line 13 contains more than one integral element, the inlet pipe 28 can flow into the second water line of any of such integral elements contained in the water supply line 13.

The operation of the washing machine in accordance with this invention is as follows; with reference to the attached figures, by opening the adjustable valve 40 connected to the inlet fitting 15b, clean and fresh water coming from a water source enters the water distributor 14, crosses the air gap or air gap 16 and enters the bypass line 20 from which it flows into the second conduits 27 of the water supply line 13, and finally enters the tank 5, and as a result into the drum 6, through the hole 26 formed in the seals 7.

This clean or fresh water enters the drum 6 from the upper frontal zone of the latter, soaks the laundry in it.

After pre-soaking by adjusting the adjustable valves 40, water can also be supplied to the channels 17a and / or 17b, from which it reaches one or both of the sections 18a, 18b, and then to one or both of the compartments 11, 11b.

For example, with reference to FIG. 4, when only the adjustable valve associated with the inlet fitting 15a is opened, pure water coming from the water source enters the water distributor 14, crosses the air gap 16 and enters the channel 17a.

When you open both adjustable valves connected to the inlet fittings 15a and 15b, two streams (un illustrated) of clean water coming from the water source enter the water distributor 14 and are combined with each other, largely in accordance with the air gap 16, to form one jet, which enters the channel 17b.

In the compartments 11a, 11b, the water is mixed with the detergents and / or rinses contained in them, and then enters the tank 5 through the first conduits 25 of the water supply line 13.

As indicated above, if the washing machine 1 is equipped with a recirculation circuit, the washing / rinsing phases can be circulated to provide better soaking of the laundry with water as described above, the washing / rinsing liquid can be discharged from the bottom of the tub 5 and again fed into it through the second conduit 27 of the integral element 13b.

As a result, it is clear how the invention achieves its goals and solves the problems, thus, a washing machine is proposed, which can be a “simple” washing machine, as well as a washer-dryer, which, thanks to the bypass line, is hydraulically separated from the compartment to be filled detergents and rinses, allows you to selectively supply clean or fresh water to the tank without the risk that it will come into contact with rinsing or rinsing before entering the tank. Thanks to this bypass line, clean or fresh water can be directly supplied to the tank, and the laundry will be soaked faster and more evenly. Moreover, the presence of a bypass line inside the detergent / rinse agent dispenser, and the special design of the water supply line connecting the hydraulic detergent / rinse agent dispenser and the tank, allows clean and fresh water to be fed into the tank, without increasing the complexity or size of the circuit for supplying water and / or detergents to the tank, and reducing assembly costs for supplying water and / or detergents to the tank.

In addition, if the washing machine is equipped with a recirculation circuit, the connection of the inlet tube to the second channel of one of the one or more integral elements can reduce complexity and eliminate the disadvantages of the recirculation circuit.

Claims (22)

1. A washing machine (1) comprising
a washing tank (5), including a rotating perforated drum (6),
a dispenser (8) of a washing solution / rinsing liquid, comprising a housing (9) and a hopper (10), removably connected to the specified housing (9), equipped with one or more compartments (11a, 11b), designed to be filled with washing and rinsing products, the specified dispenser (8) of the washing solution / rinsing liquid, contains a water distributor (14) and is equipped with at least two inlet fittings (15a, 15b) connected upstream to a water source and hydraulically connected downstream air gap (16), from which branches, at least least two channels (17a, 17b), is hydraulically connected with said inlet fitting (15a, 15b) and intended for transmitting water into said compartment (11a, 11b),
a water supply line (13) hydraulically connecting said dispenser (8) and said tank (5),
characterized in that
said dispenser (8) comprises a bypass line (20) hydraulically connected upstream with at least one of said inlet fittings (15a, 15b) and extending from said air gap (16), said bypass line (20) is hydraulically separated from said channels (17a, 17b) so that a stream of clean water coming from one or more inlet fittings (15a), (15b) can enter the bypass line (20) without entering the channels (17a) , (17b), and the bypass line (20) is hydraulically separated from the compartments (11a), (11b) and is designed to supply a stream of oh water from said Dispenser of washing solution / rinse (8) to said tank (5). 2. A washing machine according to claim 1, characterized in that said bypass line (20) comprises a first section of a channel (21) extending from said air gap (16) to a section of said water distributor (14) that these channels do not touch (17a) , 17b), wherein said first section of the channel (21) is connected hydraulically, upstream, to one or more of said inlet fittings (15a, 15b), and is hydraulically separated from said one or more compartments (11, 11b). 3. The washing machine according to claim 2, characterized in that said first section of the channel (21) extends longitudinally from said air gap (16) through said water distributor (14) towards the frontal end (11a) of said water distributor (14). 4. A washing machine according to claim 2, characterized in that said first section of the channel (21) extends to the rear end (14b) of said water distributor (14). 5. A washing machine according to any one of claims 1 to 4, characterized in that said bypass line (20) comprises a second section of the channel (22), connected hydraulically, upstream, to the first section of the channel (21), and below the stream, with the specified tank (5), the specified second section of the channel (22) is separated hydraulically from the specified one or more compartments (11, 11b). 6. The washing machine according to claim 5, characterized in that the said second section of the channel (22) is placed on / on the side wall (9b) of the specified housing (9). 7. A washing machine according to claim 6, characterized in that the said second section of the channel (22) is formed near the frontal end (9c) of the indicated body (9), opposite the specified inlet fitting (15a, 15b). 8. A washing machine according to claim 6, characterized in that said second section of channel (22) extends longitudinally along said side wall (9b) of said housing (9). 9. A washing machine according to claim 5, characterized in that said second section of the channel (22) is formed at least partially in / on said housing (9) and at least partially in / on said hopper (10) . 10. A washing machine according to claim 5, characterized in that said second section of the channel (22) is formed completely on / on said hopper (10). 11. A washing machine according to claim 10, characterized in that the said second section of the channel (22) is formed between the bottom (10a) of the indicated hopper (10) and the outer tray (50) attached to the specified bottom (10a). 12. A washing machine according to claim 10, characterized in that said second section of the channel (22) is formed in the form of an integral structure with said hopper (10) and is hydraulically separated from said compartments (11a, 11b). 13. The washing machine according to any one of paragraphs. 9, 10, 11, 12, characterized in that the said second section of the channel (22) is connected hydraulically, downstream, with the specified water supply line (13) through the hole (24) formed in the specified housing (9). 14. A washing machine (1) according to any one of claims 1 to 4, 6-12, characterized in that said water supply line (13) contains one or more integral elements (13, 13a, 13b) containing a first water conduit (25 ) hydraulically connected to said one or more compartments (11, 11b) and said tank (5), and a second water conduit (27) separated hydraulically from said first water conduit (25), said second water conduit (27) is connected hydraulically, above flow, with the specified bypass line (20), and is connected hydraulically, downstream, with the specified tank (5), the first and second water water formed in a single piece. 15. A washing machine (1) according to claim 5, characterized in that said water supply line (13) contains one or more integral elements (13, 13a, 13b) containing a first water conduit (25) hydraulically connected to said one or more compartments (11, 11b) and the specified tank (5), and the second conduit (27), separated hydraulically from the specified first conduit (25), the specified second conduit (27) is connected hydraulically, upstream, with the specified bypass line (20 ), and is connected hydraulically, downstream, with the indicated tank (5), the indicated first and second water conduits of the form us in one-piece construction. 16. A washing machine (1) according to claim 13, characterized in that said water supply line (13) comprises one or more integral elements (13, 13a, 13b) comprising a first water conduit (25) hydraulically connected to said one or more compartments (11, 11b) and the specified tank (5), and the second conduit (27), separated hydraulically from the specified first conduit (25), the specified second conduit (27) is connected hydraulically, upstream, with the specified bypass line (20 ), and is connected hydraulically, downstream, with the indicated tank (5), the indicated first and second water conduits of the form Ans in one piece design. 17. A washing machine (1) according to any one of claims 1 to 4, 6-12, characterized in that it contains a recirculation loop for draining the washing liquid / rinse liquid from the bottom of the specified tank (5) and for re-supply of this detergent liquids / rinses to the top of said tank (5), wherein said recirculation loop is connected hydraulically to a second water conduit (27) of one of said one or more integral elements (13, 13a, 13b), so that said circulating washing liquid / rinse liquid is served in the decree nny tank (5) through said second conduit (27). 18. The washing machine (1) according to claim 5, characterized in that it contains a recirculation circuit designed to drain the washing liquid / rinse liquid from the bottom of the specified tank (5) and to re-supply this washing liquid / rinse liquid to the upper part the specified tank (5), while the specified recirculation circuit is connected hydraulically to the second conduit (27) of one of the specified one or more integral elements (13, 13a, 13b), so that the specified circulating washing liquid / rinse is fed into the specified tank (5) cher of said second conduit (27). 19. A washing machine (1) according to claim 13, characterized in that it comprises a recirculation circuit for draining the washing liquid / rinse liquid from the bottom of the indicated tank (5) and for re-supplying this washing liquid / rinse liquid to the upper part the specified tank (5), while the specified recirculation loop is connected hydraulically to the second conduit (27) of one of the specified one or more integral elements (13, 13a, 13b) so that the specified circulating washing liquid / rinse is fed into the specified tank ( 5) cher of said second conduit (27). 20. The washing machine (1) according to 14, characterized in that it contains a recirculation circuit designed to drain the washing liquid / rinse liquid from the bottom of the specified tank (5) and to re-supply this washing liquid / rinse liquid in the upper part the specified tank (5), while the specified recirculation loop is connected hydraulically to the second conduit (27) of one of the specified one or more integral elements (13, 13a, 13b) so that the specified circulating washing liquid / rinse is fed into the specified tank ( 5) cher of said second conduit (27). 21. The washing machine (1) according to claim 15, characterized in that it comprises a recirculation circuit for draining the washing liquid / rinsing liquid from the bottom of the indicated tank (5) and for re-supplying this washing liquid / rinsing liquid to the upper part the specified tank (5), while the specified recirculation loop is connected hydraulically to the second conduit (27) of one of the specified one or more integral elements (13, 13a, 13b) so that the specified circulating washing liquid / rinse is fed into the specified tank ( 5) cher of said second conduit (27). 22. A washing machine (1) according to claim 16, characterized in that it comprises a recirculation circuit for draining the washing liquid / rinsing liquid from the bottom of the indicated tank (5) and for re-supplying this washing liquid / rinsing liquid to the upper part the specified tank (5), while the specified recirculation loop is connected hydraulically to the second conduit (27) of one of the specified one or more integral elements (13, 13a, 13b) so that the specified circulating washing liquid / rinse is fed into the specified tank ( 5) cher of said second conduit (27).

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