MX2010013933A

MX2010013933A - Textile prewash system.

Info

Publication number: MX2010013933A
Application number: MX2010013933A
Authority: MX
Inventors: Luis Ballesteros Martinez; Oscar Barrios Flores; Cesar Eduardo Mancilla Hernandez; Edgar Rene Aranda Sanchez; Victor Manuel Gonzalez Hernandez
Original assignee: Mabe Sa De Cv
Priority date: 2010-12-15
Filing date: 2010-12-15
Publication date: 2012-06-15
Also published as: BRPI1107121A2; CA2760131A1

Abstract

A textile prewash system for a clothes washing machine comprising a cabinet, a tub, an agitating element and a driving system; wherein said prewash system comprises a prewash brush comprising a casing, which contains a motor with a rotating shaft to which a bristle brush head is detachably connected in order to provide rotating motion thereof, a fillable washing liquid container tank connected to a pump, actuated by a trigger mechanism to extract the liquid from said container and to propel it towards a spraying nozzle; said brush is connected by a feed line and a voltage transformer directly to the washing machine so as to be powered by the same; a brush support structure detachably coupled to the cabinet of the washing machine by means of at least one fastening element, which is designed specially to hold and support said prewash brush adjacent to the washing machine when not in use; said support structure comprising two structural parts, a first lower part shaped as a box to house therein the voltage transformer through which the brush is powered, and a second upper part attached through at least one fastener element to said first lower part and which functions to hold the prewash brush when not in use.

Description

TEXTILE PRE-WASHING SYSTEM.

Field of Invention The present invention relates to a textile washing machine that has a prewash system that helps to carve and remove heavily impregnated stains in specific parts of the textiles, prior to their normal washing in the washing machine. More specifically, it relates to a prewash brush which is removably supported and electrically connected to said washing machine by means of a support mechanically coupled thereto.

Description of the Prior Art.

Usually, when a garment or textile is stained with substances that are deeply impregnated in it, or in the case of specific parts of some types of clothing in particular that accumulate more dirt such as shirt collars for example, it is necessary that said parts are subject to a previous washing before the normal washing of the garment in the washing machine. Said pre-washing is normally done by hand-carving the garment against a hard and rough object such as a laundry, which not only implies a lot of time and effort on the part of the operator, but also causes a great deterioration thereof due to excessive wear of the fibers. At present, some alternatives have been developed to carry out said prewashing of the textiles using external or peripheral means of the washing machines, however, none of said systems turns out to be practical and efficient enough to cover all the necessities required by the user. a washing machine, and through which you can perform the washing of your clothes in an efficient manner.

For example, in U.S. Patent No. 7 363 673 a cleaning apparatus such as a motorized brush is disclosed which includes a housing or housing, a drive system disposed within the housing formed by a DC motor, a transmission by means of gears, a rotary output shaft and a cleaning accessory coupled to the rotary shaft; It also has a liquid supply system consisting of a pressurized liquid container, a pump and impulse pump and a supply nozzle; wherein said apparatus is used in the cleaning of various articles by spraying the cleaning liquid of the container on the surface to be cleaned and the subsequent cutting thereof by means of the brush. However, the brush motor of the present invention is powered by common or rechargeable batteries housed inside the same housing that forms said brush, which makes it necessary to increase the size and robustness thereof, besides representing an expense considerable money and time for the operator, the constant change of said batteries or their recharging. Also, said apparatus of the present invention is not specifically designed to be used in the washing of textiles, whereby the bristles of the cutting attachment, when used in all types of surfaces to carve all kinds of substances, are contaminated and can get to stain more textiles when used on them, or in their case they can go to mistreat textiles because such bristles are not special and suitable for such use. Coupled with the above, not being a specific brush to be used in the washing of textiles or be designed as a complement to a washing machine, it is not together with it and therefore does not have a special support to stay subject to the washing machine while it is not used, nor is it directly fed by it; having as a consequence that it is not part of a complete washing system and can not be considered as a textile prewash system.

In CN 2186511 a multifunction electric brush with cleaning and polishing material for washing clothes and polishing shoes is disclosed, which consists of an outer cover or housing that houses a miniature motor connected to a transmission of gears to transmit rotary movement to a shaft to which a brush head is attached, a bottle or compressible container containing the cleaning material connected by means of a conduit with a supply outlet. According to the above, the main problem presented by the apparatus described in this document lies in the system of supply of cleaning material, since it does not have a pump or means of extraction and impulse of said material but it is necessary that the operator presses directly on the container to be compressed little by little and thus can be expelled this cleaning material, which in addition to making this process difficult and inefficient, it is not possible to extract all the material from the container representing a waste of the same. Additionally, this apparatus has the same drawbacks discussed in the document of the prior art, since it is also fed by batteries, is not designed exclusively for washing textiles, and, although it has a small projection in the form of an integral hook to the same to be able to hang, does not have a special support to stay firmly attached to the washing machine while it is not used, nor is it directly fed by it; having as a consequence that it is not part of a complete washing system and can not be considered as a textile prewash system.

In the CN document 2048867 discloses a cleaning brush driven by motor that is assembled to a washing machine which is used to carve seriously stained garments. Said brush consists mainly of a rotating brush head held by a housing and attached to a flexible rotating shaft connected via connection means to the motor of the washing machine which transmits movement to said brush head. In the first instance, it should be noted that the brush described in this document does not have means of supplying washing liquid for textiles, for which reason it is necessary to resort to external means of supply complicating the prewash process. Likewise, this system of transmission of movement complicates and above all it makes the brush system much more expensive, since it is necessary to install speed reducers, connection means and flexible movement transmission shafts, which are quite expensive elements and require periodic maintenance . In addition to the above, in the same way as the brush of the document previously analyzed, although it has a small projection in the form of an integral hook to the same to be hung, it does not have a special support to stay firmly attached to the washing machine while it is not used.

Finally, in US Pat. No. 6,886,371 a partial washing apparatus is disclosed for a washing machine having a supersonic resonator which is operated by an oscillator to generate supersonic vibration in a supersonic vibration horn, so that a liquid Washing is fed to the partial washing apparatus to be agitated by the supersonic waves and subsequently it is directed towards the article to be washed in order to achieve partial washing of the same. Said partial washing apparatus is detachably attached to the washing machine by means of a supporting member which partially houses it and which is fixed by magnetic means to the washing machine cabinet. According to the above, it is first necessary to point out that although this document refers to a system of prewash of textiles in a washing machine, it is a totally different cleaning technology since it does not count at all with a brush by means of the which is carved the garments to clean them and on the contrary supersonic means are used for this purpose, besides that in this case the washing liquid is not fed from a container part of the same cleaning device but is supplied from an external line that for the washing machine. It should be noted that although in this case the partial washing apparatus has a support member to hold it to the washing machine while it is not being used, said support member is only attachable by magnetic means to the cabinet of the washing machine and in any metallic part of the same, running the risk of falling off and falling as a result of an impact, being able to damage the partial cleaning device, or in certain cases being able to be placed in certain parts of the cabinet where there is the possibility that it interferes with any other item or device adjacent to the washer such as a dryer or door. In the same way, the support member disclosed in this document does not contemplate the possibility that, due to the shape and construction thereof, it may additionally serve to house and isolate the current transformer from AC to DC through which the brush is fed. pre-washed directly from the washing machine, which saves space, aesthetics and functionality are provided, but above all, user safety is provided.

Similarly, in the state of the art there are other types of manual or portable motorized cleaning brushes and with different means of supplying cleaning liquid, nevertheless none of them has all the necessary characteristics to form a prewash system for cleaning. textiles removably attached to a washing machine by means of a specially designed support coupled thereto, and wherein said brush is further electrically fed directly by the same washing machine, such as that described later in the present application .

Therefore, according to the above there is a need to have a textile prewash system that overcomes the drawbacks of the aforementioned state of the art.

Brief description of the invention.

The present invention has been carried out in order to provide an effective solution to the aforementioned problems of the state of the art. The main object of the present invention is to provide a textile washing machine that has a prewash system that helps to carve and remove stains impregnated in specific parts of the textiles prior to their normal washing in the washing machine, whose characteristics allow a process of practical, efficient and safe prewash for the user. The present invention relates to a prewash brush which is removably attached to a washing machine by means of a support coupled thereto and specially designed for that purpose. Specifically, it refers to an electric prewash brush driven by means of a direct current (DC) motor which is fed directly by the washing machine through a voltage transformer. More specifically, it relates to a prewash brush manually manipulated by the operator, which also has a storage and spraying system for washing liquid (detergent mixture) that is spread over the area to be carved on the garment to facilitate washing and in this way guarantee the disappearance of stains impregnated deeply.

Said prewash brush essentially consists of a main body or casing preferably made of rigid plastic material, inside which both the brush drive system and its electrical connections are housed, as well as the storage and spraying system of the washing liquid thereof. . The impulse system comprises a direct current motor connected to a transmission system by means of gears which mainly serves to reduce the speed of rotation and increase the torque; said transmission system in turn is connected to a rotating output shaft to which the movement directly transmits. The DC motor can be variable speed and is electrically powered by a line that comes directly from the electrical system of the washing machine, passing before a voltage transformer which is responsible for converting alternating current (AC) of approximately 127 volts with which the washing machine system works, at a direct current of approximately 6 volts with which the brush operates. In a complementary manner, an interchangeable brushing head with bristles is detachably connected to said rotary output shaft of the brush to be driven and thus be able to perform the brushing function.

For its part, the system for storing and spraying the washing liquid of the brush consists mainly of a tank containing washing liquid which is fixed to the brush housing and is refillable through a removable plug installed therein; said tank is fluidly connected by means of a first pipeline section to a liquid extraction and impulse pump, preferably of the piston and spring type, operable by a sliding button or trigger to extract said liquid from the container tank and propel it to through a second section of duct towards a rolling nozzle conveniently installed in the front part of the casing.

On the other hand, the present invention also relates to a support structure of the prewash brush which is fixed by means of at least one fixing element to the assembly of the upper cover or lid of the washing machine cabinet, preferably in the back of it; to thereby support and detachably hold the prewash brush together with said washing machine while it is not being used, thus forming a practical and practical textile prewash system. According with the last, said support structure is specially designed for coupling with the prewash brush and for carrying out its function of holding it firmly while it is not being used, also allowing its easy decoupling when it is required by the operator. More specifically, said support structure is formed by two structural parts, a first lower part and a second upper part. Said first lower structural part has a box-shaped form open on its rear specially designed to house within it the voltage transformer by means of which the prewash brush is fed, this in order to protect said transformer from the weather, save space and provide greater aesthetics to the system, among others. Also, said first lower structural part is that which is fixed directly to the washing machine by means of at least one fixing element such as screws, rivets, staples, clamping screws by pressure, or any other suitable means, which is preferably placed in a flange formed around the open face of the box; so that said open face of the box is disposed against the surface of the upper cover of the washing machine and fixed thereto to leave the transformer completely enclosed; it being possible to additionally place an O-ring type packing around the edge of said flange in order to obtain a hermetic seal.

On the other hand, the second upper structural part has a substantially U-shaped channel design which bends longitudinally in a square, and is specially designed to coincide with the shape of the portion of the brush housing that will rest or seat. about her; further comprising a securing or locking means such as an upward hook-shaped projection, integral with a side edge of said channel, which serves to lock and hold the brush when it engages with the support structure until the The operator exercises a sufficient force to uncouple it and be able to use it. Finally, said second structural part is coupled on a specially designed protuberance on the upper part of the first structural part, both being fixed by means of at least one fastening element such as screws, rivets, staples, pressure fastening bolts. , or any other suitable means.

In this way, a textile prewash system specially designed to provide a pre-cut of the stains deeply impregnated in the garments is obtained, which has advantages over prior art systems since it is electrically fed directly by the washing machine through of a voltage transformer, has a support adhered to said washing machine specially designed to detachably securely hold the prewash brush of the system while it is not being used, wherein said support is also specially designed to house and protect the voltage transformer of the weather, in addition to saving space and providing greater aesthetics to the system; among other advantages which will be apparent when there is reference to the description taken in conjunction with the following figures.

Brief Description of the Figures.

The particular features and advantages of the invention, as well as other objects of the invention, will be apparent from the following description, taken in conjunction with the accompanying figures, in which: Figure 1 is a conventional perspective view of a textile washing machine having the prewash system of the present invention coupled thereto.

Figure 2 is a cross section of a washing machine without cabinet showing the internal elements thereof.

Figure 3 is a rear perspective view of the washing machine of Figure 1.

Figure 4 is a rear view of the washing machine of Figure 1.

Figure 5 is a right side view of the washing machine of Figure 1.

Figure 6 is a left side view of the washing machine of Figure 1.

Figure 7 is a front perspective view of an approach of the rear part of the washing machine just where the prewash system of the invention is fixed.

Figure 8 is a side perspective view of the approach of Figure 7.

Figure 9 is the view of Figure 7 with the disassembled cep of the prewash and concealed system.

Figure 10 is the view of Figure 8 with the brush disassembled from the prewash and concealed system.

Figure 11 is the view of Figure 7 with the support structure of the prewash system disassembled and separated from the washing machine.

Figure 12 is an exploded rear perspective view of the support structure of the disassembled prewash system and separate from the washing machine.

Figure 13 is a rear perspective view of the support structure of the prewash system housing voltage transformer.

Figure 14 is a conventional perspective view of the support structure of the prewash system.

Figure 15 is a top view of the support structure of Figure 14.

Figure 16 is a front view of the support structure of Figure 14.

Figure 17 is a left side view of the support structure of Figure 14.

Figure 18 is a rear perspective view of the first lower structural part of the support structure of the prewash system.

Figure 19 is a left side view of the first lower structural part of Figure 18.

Figure 20 is a rear view of the first lower structural part of Figure 18.

Figure 21 is a rear perspective view of the second upper structural part of the support structure of the prewash system.

Figure 22 is a bottom perspective view of the second upper structural part of the support structure of the prewash system.

Figure 23 is a conventional perspective view of the prewash brush of the prewash system of the present invention.

Figure 24 is a rear perspective view of the prewash brush of Figure 23.

Figure 25 is a front view of the prewash brush of Figure 23.

Figure 26 is a top view of the prewash brush of Figure 23.

Figure 27 is a rear view of the prewash brush of Figure 23.

Figure 28 is a side view of the prewash brush of Figure 23.

Figure 29 is a conventional perspective view of the prewash brush of the prewash system of the present invention with a part of the casing disassembled and concealed.

Figure 30 is an exploded conventional perspective view of the prewash brush of the prewash system of the present invention.

Figure 31 is an exploded rear perspective view of the prewash brush of the prewash system of the present invention.

Figure 32 is a conventional perspective view of the washing liquid impulse extraction and pump of the storage and spraying system for washing liquid of the prewash brush.

Fig. 33 is an electrical block diagram illustrating an alternative embodiment of the brush drive control by means of the washing machine directly.

Fig. 34 is an electrical block diagram illustrating a second alternative embodiment of the brush drive control by means of the washing machine directly.

Figure 35 is an electrical block diagram illustrating a third alternative embodiment of the brush drive control by means of the washing machine directly.

Figure 36 is a conventional perspective view of a first embodiment of the prewash surface.

Figure 37 is a conventional perspective view of a second embodiment of the prewash surface.

Detailed Description of the Invention.

The present invention relates to a textile washing machine 1 having a prewash system 100 which helps to carve and remove stains impregnated on specific parts of the textiles prior to their normal washing in the washing machine. The washing machine 1 object of the present invention is of the top loading type or vertical axis, and that has a cabinet 10. As shown in Figure 2, four suspension bars 11 supporting the weight are held from said cabinet 10. of the tub 12 together with the rest of its accessories of the mentioned cabinet 10, besides acting as a shock absorber of the vibrations that originate during the washing process. Thus, the tub 12 is suspended from said suspension bars 11 by means of lugs arranged in the lower part of said tub 12. On said tub 12 the rest of the peripheral equipment is mounted, as is the motor 13, optionally a planetary reduction box 14, which in an alternative embodiment of the present invention can be omitted, by adjusting the ratio of the pulleys 15, 16, that is, the pulley 15 with larger diameter will fit on the internal arrow 17 which will receive energy coming from the electric motor 13 thanks to the arrangement of pulleys 15,16 and band. Optionally, the arrow 17 at its upper end is coupled to a planetary box 18, in order to reduce the angular velocity and thus obtain greater torque, the output arrow of the planetary case 18 is reintegrated into an arrow 17, which at its upper end sits the agitator 19. Optionally, the internal arrow 17 in its lower end has the pulley 15 of greater diameter coupled and at its upper end the agitator 19 is coupled. The hollow arrow 20 houses inside the internal arrow 17. Said hollow arrow 20 is mechanically coupled to a clutch 21 which can make both arrows 17, 20 rotate together or independently. Said hollow arrow 20 is mechanically coupled to the center of basket 22 or to the "hub", so that when the arrows 17, 20 are engaged rotating together, the hollow arrow 20 will transmit energy to the basket 22 so that it rotates together with the agitator 19. The basket 22 is topped with a balance ring 23 which counteracts the imbalance caused by the accommodation within the basket 22 of the objects to be washed. The tub 12 on the other hand, has assembled at its upper end a cover tub (tub cover) 24 which houses a grid, as well as a spray baffle. For its part, the cabinet 10 is covered by the main upper cover or cover 30 that covers the upper part of the washing machine 1. Said main cover 30 serves as support for a tuft 31 where the electronic components of the washing machine are housed, as well as to the washing machine door 32 through which the objects to be washed have to be introduced.

On the other hand, as illustrated in Figures 1 to 12, the textile prewash system 100 of the present invention is attached to the cabinet 10 of the washing machine 1 described above; specifically, it is attached to the upper cover assembly or cover 30 of the cabinet, and preferably to the rear thereof for practical and space-saving purposes. Said textile prewash system 100 that works in conjunction with the washing machine 1 to achieve a better and more efficient washing of the garments, is mainly comprised of a motorized prewash brush 110 and a supporting or holding structure 160 for the same . The prewash brush 110 is removably attached to the washing machine 1 by means of the support structure 160 coupled thereto, which is specially designed for that purpose.

As can be seen from figures 23 to 32, said prewash brush 110 is an electric brush driven by means of a direct current (DC) motor 121 which is fed directly by the washing machine 1 through a voltage transformer. 140. More specifically, it is a prewash brush manually manipulated by the operator, which also has a storage and spraying system for washing liquid (detergent mixture) 130 that is spread over the area to be carved on the garment to facilitate its washing and in this way guarantee the elimination of deeply impregnated stains.

Said prewash brush 110 consists essentially of a main body or casing 111 preferably made of rigid plastic material and formed by two covers, one upper 112 and one lower 113, assembled together by means of fixing elements such as screws, rivets, staples (snaps), etc. Within said housing 111 both the brush drive system 120 and its electrical connections, as well as the storage and spraying system of washing liquid 130 thereof, are housed. The impulse system 120 comprises a direct current motor 121 connected to a transmission system by means of gears 122 which serves mainly to reduce the speed of rotation and increase the torque; said transmission system 122 in turn is connected to an output rotary shaft 123 to which the movement directly transmits it. The DC motor 121 can be variable speed and is electrically powered by means of a line or cable 124 that comes directly from the electrical system of the washing machine 1, passing before by a voltage transformer 140 which is responsible for converting the current alternating (AC) of approximately 127 volts with which the system of said washing machine 1 works, at a direct current of approximately 6 volts with which the brush 110 operates; said power supply being controlled to the engine 121 by means of an on / off button 125 disposed inside the casing 111 and operable by the operator from the outside thereof. In a complementary manner, an interchangeable brushing head 150 with bristles 151 is detachably connected to said rotating output shaft 123 of the brush 110 to be driven and thus be able to perform the brushing function. Said brushing head 150 is chosen and exchanged in the brush 110 according to the type of textile to be cut, the type, size, hardness and quantity of bristles 151 that said head 150 has in order to avoid damaging the garments can be chosen. made with soft fabrics, carving them with very hard bristles or, if necessary, not being able to remove any stains on thick fabrics by using very soft bristles.

For its part, the system for storing and spraying washing liquid 130 of the brush 110 is mainly formed by a tank 131 containing washing liquid which is fixed to the housing 111 of the brush and is refillable through a removable plug 132 installed in it; said tank 131 being preferably made of transparent rigid plastic to be able to observe through it the water level inside it, and can also have, in an alternative modality, a scale for measuring liquid remaining content. Said tank 131 is fluidly connected by means of a first section of semiflexible duct 133 to a liquid extraction and impulse pump 134, preferably of the piston and spring type, operable by means of a tilting part or trigger 135 to extract said liquid content in the tank 131 and propelling it through a second section of semiflexible duct 136 towards a roll nozzle 137 conveniently installed in a cavity 114 in the front of the housing 111 to facilitate and make more practical the spraying of the textiles during their prewash. Said liquid extraction and pulse pump 134 illustrated in more detail in Figure 32, is preferably a pump with a cylindrical pumping chamber 138 within which a plunger (not shown) reciprocates to introduce the liquid at first. instance within said chamber to then push it out of it; said displacement is caused by means of a trigger mechanism 135 operated by the operator by means of a slide button 115 cooperatively arranged on the housing 111, and in the opposite direction by means of a return spring (not shown) disposed inside the chamber 138 In addition to the foregoing, as shown mainly in Figures 13 to 22, the support structure 160 of the prewash brush is fixed by means of at least one fixing element 161 to the assembly of the upper cover or cover 30 of the cabinet 10 of the washing machine 1, preferably in the rear part thereof; to thereby fulfill its objective of supporting and releasably holding the prewash brush 110 together with said washing machine while it is not being used, thus forming a functional and practical textile prewash system 100. According to the foregoing, said support structure 160 is specially designed for coupling with the prewash brush 110 and for carrying out its function of holding it firmly while it is not being used, also allowing its easy decoupling when it is required by the operator. Specifically, said support structure 160 is formed by two structural parts, a first lower part 170 and a second upper part 180. Said first lower structural part 170 has a box shape 171 open on its rear part specially designed to house inside the same to the voltage transformer 140 by which the prewash brush 110 is fed, this in order to protect said transformer 140 from the weather, save space and provide greater aesthetics to the system, among others. Also, said first lower structural part 170 is that which is fixed directly to the washing machine 1 by means of at least one fixing element 161 such as screws, rivets, staples, clamping screws by pressure, or any other suitable means, which is preferably placed in a flange 172 formed around the open face of the box 171; so that said open face of the box 171 is disposed against the surface of the upper cover 30 of the washing machine and fixed thereto to leave the transformer 140 completely enclosed; it being possible to additionally place a seal-type polymer packing (O-ring) 173 around the edge of said flange 172 in order to obtain a hermetic seal.

On the other hand, the second upper structural part 180 has a substantially U-shaped channel design 181 which is longitudinally bent into a square, and is specially designed to coincide with the shape of the housing portion 111 of the brush 110. who will rest or settle on it; further comprising a securing or locking means 182 such as an upward hook-shaped projection, integral with a side edge 183 of said channel 181, which serves to lock and hold the brush 110 when it engages with the structure of 160 support until the operator exerts enough force to uncouple it and be able to use it. Finally, said second structural part 160 is coupled on a protuberance 174 specially designed on the upper part of the first structural part 170, both being fixed by means of at least one fastening element 162 such as screws, rivets, staples, bolts. of clamping by pressure, or any other suitable means.

Also, in the lower part of the first structural part 170 in the form of a box 171, a perforation 175 is made through which the power cable 124 goes from the transformer 140 therein, up to the prewash brush 110, preferably being a telephone type spiral cable to facilitate the manipulation of said brush 110 to places further away from the washing machine 1 such as a bucket, a laundry, etc.

In a complementary manner and as an alternative embodiment of the above-described prewash brush drive system, there is the possibility that the direct current motor of said brush is directly connected to the main control card of the washing machine and is controlled by the same, so that the button to turn on and off the brush is arranged on the control panel of the washing machine. This is achieved (as illustrated in Figure 33) by means of a handler (such as a MOSFET), a TRIAC, Relay, Relay, Thyristor, Transistor, etc.) connected directly to the main control board of the washing machine and to the brush motor, so that said driver energizes or allows energy to pass to the brush motor when it receives a Control signal or pulse train of the electronic control or card. It should be noted that for this mode of connection of the brush to the washing machine can dispense with the voltage transformer, because the voltage supply suitable for the motor is obtained directly from the control card.

In addition to the above, it is also possible to have a mode in which it is possible to vary the speed of rotation of said direct current motor with some suitable means and from the same control panel of the washing machine. This is achieved (as illustrated in Figure 34) by a pulse generator connected between the main control board and the handler; thus the control or control card sends a signal to the pulse generator so that it generates a train of pulses with a given frequency and width of pulses, and that corresponds to a determined speed of the motor, if the knob or keypad is modified, the control or control card detects the position of these and determines if it should increase or decrease the speed and what percentage or quantity, thus sends a signal back to the pulse generator so that it generates the appropriate pulse train at the new speed required, the aforementioned train of pulses drives the handler so that this in turn allows the passage of energy to the motor and this finally moves in the desired direction and speed.

Finally, in another alternative mode, (as illustrated in Figure 35) the motor can be a stepper motor connected to the main control board of the washing machine and controlled by means of a handler or in another alternative mode by means of a integrated circuit (ULN2003) or a bridge H, so that in this way can vary the speed of rotation of the engine according to the required by the user, which is chosen from a control type knob or keypad arranged in the control panel of the washing-machine; thus the control or control card determines when picking up the position of the knob or pushbutton, the speed at which the motor must turn, and then sending a signal to a pulse generator which will send a determined pulse train for each of them. transistors, gates or dampers piloted of the bridge H, so that these in turn allow the flow of energy to the engine to obtain the direction of rotation and speed of the engine.

It is important to note that it is extremely useful for the user of the prewash system of the present invention to have the possibility of varying the speed of rotation of the brush according to the type of fabric to be cut, in order not to mistreat a type of fabric delicate with a very fast twist of the brush; whereby there is a great advantage over the prior art because no characteristic of the prewash systems or brushes has been disclosed or suggested in any document of the state of the art.

Finally and as a complement to the prewash system 100 of the present invention, the possibility of including a prewash surface 40 preferably arranged as part of the washing machine 1 is also contemplated; this in order to have a reliable support surface at the time of carving the garments with the prewash brush 110, achieving a better and more practical operation of the prewash system. In a first embodiment, said prewash surface is part of the same upper cover 30 of the washing machine (for example in a corner thereof), wherein the prewash surface is a rough or small protruding surface 41 that facilitate the clamping of the garment on said support surface while the carving is carried out by means of the prewash brush 110 (thus preventing the garment from slipping off the surface); it should be noted that this surface can be an integral part of the upper cover 30 of the washing machine or in its case it can be a tray type piece or mat adhered to it. In another alternative embodiment of the prewash surface, it can be formed by a tray preferably made of plastic 42, slidably or articulatedly coupled to the upper cover 30 of the washing machine 1, in order to be able to retract when it is not used and extend when you want to support a garment for prewash by brush; said surface of the tray is also preferred to be rough to prevent the clothes from sliding on it.

Alterations of the structure of the system described herein, may be foreseen by those with art in the matter. However, it should be understood that the present disclosure relates to the preferred embodiments of the invention, which is for illustrative purposes only, and should not be construed as a limitation of the invention. All modifications that do not depart from the spirit of the invention, such as alternatives to feeding and control systems of the prewash brush of the present invention, should be considered within the scope of the appended claims.

Claims

1. A laundry washing machine of the type comprising mainly a cabinet, a tub, a stirring element and a drive system; wherein said washing machine further comprises: a prewash brush consisting of a housing containing a motor with a rotating shaft to which a brushing head with bristles can be detachably connected to rotate it rotatably, a refillable washing liquid container tank connected to a pump driven by means of a trigger mechanism for extracting the liquid from said container and propelling it towards a rolling nozzle; said brush is connected by means of a power line and a voltage transformer directly to the washing machine to be energized thereby; a brush support structure removably attached to the washing machine cabinet by means of at least one fastening element, which is specially designed to hold and support said prewash brush next to the washing machine when not in use; said support structure is formed of two structural parts, a first box-shaped lower part which serves to house within it the voltage transformer by means of which the brush is energized, and a second upper part joined by means of at least a fastening element to said first lower part and serving to hold the brush < ie prewash when not in use.

The laundry washing machine according to claim 1, wherein: said fastening elements can be screws, rivets, bolts, adhesive means, magnetic means, or any other suitable means.

The laundry washing machine according to claim 1, wherein: said brush washing liquid container tank has a plug detachable thereto by means of which it can be filled with washing liquid.

The laundry washing machine according to claim 1, wherein: the brush head with bristles of the prewash brush is interchangeable depending on the type of fabric to be brushed.

The laundry washing machine according to claim 4, wherein: the bristles of the brushing head can vary in amount, hardness, diameter and length.

The laundry washing machine according to claim 1, wherein: the support structure of the prewash brush is held on the main top cover or cabinet cover of the washing machine.

The laundry washing machine according to claim 1, wherein: the support structure of the prewash brush is held on the back of the main top cover or cabinet cover of the washing machine, for practicality and space purposes.

The laundry washing machine according to claim 1, characterized in that it further comprises: a seal ring or O-ring type packing placed between the bonding surface between the brush support structure and the upper cover or cabinet cover of the washing machine .

The laundry washing machine according to claim 1, wherein: the prewash brush drive motor is directly connected to and controlled by the main control board of the washing machine from the washing machine control board, being able to do without the voltage transformer.

The laundry washing machine according to claim 9, wherein: the motor is driven directly by the main control card by means of a handler (such as a MOSFET, a TRIAC, Relay, Relay, Trigger, Transistor, etc.) connected directly to both, so that said driver energizes or passes energy to the brush motor when it receives a control signal or pulse train from the electronic control or card, and is driven from the panel.

The laundry washing machine according to claim 9, wherein: it is possible to vary the speed of the motor from a digital or analog control arranged in the control panel of the washing machine.

The laundry washing machine according to claim 11, wherein: the speed variation of the motor is achieved by a pulse generator connected between the main control board and the handler; so that the control or control card sends a signal to the pulse generator so that it generates a train of pulses with a given frequency and width of pulses, and that corresponds to a determined speed of the motor.

13. The laundry washing machine according to claim 9, wherein: the motor is a stepper motor connected to the main control board of the washing machine and controlled by means of a handler or, where appropriate, by means of an integrated circuit or bridge H; in order to thus be able to vary the speed of rotation of the motor according to that required by the user, which is chosen from a control type knob or keypad arranged in the control panel of the washing machine.

14. In addition, it comprises: a textile prewash surface that serves as a support surface for the garments to be cut by the prewash brush.

15. The laundry washing machine according to claim 14, wherein: said textile prewash surface is rough or has small non-slip protrusions.

16. The laundry washing machine according to claim 15, wherein: said textile prewash surface is a tray or mat formed integrally or adhered to the upper cover of the washing machine.

17. The laundry washing machine according to claim 15, wherein: said textile prewash surface is a preferably plastic tray slidably or hingedly coupled to the upper cover of the washing machine, which can be extended or retracted .. Summary . A textile prewash system for a laundry washing machine of the type comprising mainly a cabinet, a tub, a stirring element and a drive system; wherein said prewash system comprises a prewash brush consisting of a housing containing a motor with a rotary shaft to which a brushing head with bristles is rotatably connected to rotate it, a refillable washing liquid container tank connected to a pump actuated by means of a trigger mechanism to extract the liquid from said container and propel it towards a rolling nozzle; said brush is connected by means of a power line and a voltage transformer directly to the washing machine to be energized thereby; a brush support structure removably attached to the washing machine cabinet by means of at least one fastening element, which is specially designed to hold 1 and support said prewash brush next to the washing machine when not in use; said supporting structure is formed of two structural parts, a first box-shaped lower part which serves to house within it the voltage transformer by means of which the brush is energized, and a second upper part joined by means of at least one fastening element to said first lower part and serving to hold the prewash brush when it is not in use.