WO2019229279A1 - System for improving air quality around a blackboard via localised extraction of contaminated air - Google Patents

System for improving air quality around a blackboard via localised extraction of contaminated air Download PDF

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Publication number
WO2019229279A1
WO2019229279A1 PCT/ES2019/070316 ES2019070316W WO2019229279A1 WO 2019229279 A1 WO2019229279 A1 WO 2019229279A1 ES 2019070316 W ES2019070316 W ES 2019070316W WO 2019229279 A1 WO2019229279 A1 WO 2019229279A1
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WO
WIPO (PCT)
Prior art keywords
air
slate
environment
extraction
quality improvement
Prior art date
Application number
PCT/ES2019/070316
Other languages
Spanish (es)
French (fr)
Inventor
Rafael DÍEZ VEGA
Luis Manuel Navas Gracia
Daniel PÉREZ HERRERO
Francisco Javier REY MARTÍNEZ
Borja ROMÁN CAPELASTEGUI
Francico José VALBUENA GARCÍA
Marta LÓPEZ ANTUÑANO
Original Assignee
Universidad De Valladolid
Vega Ingeniería, S.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Universidad De Valladolid, Vega Ingeniería, S.L. filed Critical Universidad De Valladolid
Publication of WO2019229279A1 publication Critical patent/WO2019229279A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools, brushes, or analogous members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L21/00—Blackboard or slate cleaning devices
    • B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust

Definitions

  • the present invention relates to an air quality improvement system in the environment of a slate during its use by localized extraction of contaminated air, consisting of one or several devices whose essential purpose is to eliminate contaminants, whether solid particles or chemical contaminants, which are generated by writing on a board, erasing the board or cleaning the manual eraser used to erase the board, so that those contaminants are not inhaled by users of the board.
  • the interest of this invention is based on the fact that, although the pollutants generated on the board may not cause excessive damage to the air quality of the room where the boards are located, they can lead to health problems and welfare of teachers and users of the boards that use them for several hours a week, due to the intensity of their use and the high proximity of these people to the specific area of generation of pollutants, such as chalk, marker pen, whiteboard or manual eraser.
  • the present invention makes it possible to significantly improve the air quality of a user during the use of the board by using one or more of the devices described without incurring the high cost of an electronic board or requiring The complexity of its use.
  • the present invention describes a system for improving air quality in the environment of a slate by localized extraction of contaminated air.
  • the system can comprise a series of devices, all of them independent of each other, although complementary to each other, being able to share some type of connections or common elements, so that they are not installed redundantly.
  • devices are the following:
  • An erasing strip with erasing elements that are in contact with the board to carry out the erasure and an air intake for the extraction of the contaminated air which also comprises a fixing element at each end for the sliding along paths along the board,
  • a manual eraser consisting of a body and some erasing elements that form the erasing surface and an air intake for the extraction of contaminated air
  • Each of the aforementioned devices comprises a plenum or extraction chamber that communicates the room where the board is located with an outlet for the extraction of air through an extraction duct, so that the plenum is in depression with respect to the living room.
  • the communication of the plenum with the room is carried out as follows:
  • Each of the devices is capable of incorporating an extractor, for the extraction of air from the room to the extraction duct that ends at the outlet, a filter for the return of contaminated air already filtered outside, to the room or another space, or both together.
  • the system incorporates more than one device and the system needs to incorporate extractor, filter or both, the system can be configured to only include one of the elements and thus not be in redundancy which, despite being more efficient, It is less profitable.
  • the system incorporates an extractor or filter
  • these may be located in a position inside the plenum or in the extraction duct upstream of the outlet.
  • the devices need to incorporate an electrical connection for activation, which can be by means of a switch, a timer or a sensor that, in turn, can be face-to-face, contact, pressure or of movement.
  • the electrical connection for the activation of the air extractor can be by means of a connection to a mains outlet or by means of a battery that, in turn, can be rechargeable or of a single use.
  • the extraction duct that communicates the outlet with the plenum can be rigid, so that it is integral with the slat and the outlet is moved with the slat itself, or it can be flexible, so that is not integral to the bar and the outlet is fixed, for example, to a wall.
  • the extraction duct that communicates the outlet with the plenum can also be rigid or flexible, depending on whether it is intended to be integral to the manual eraser or to be fixed in a place independent of the eraser manual.
  • the strip instead of a single air intake and a continuous erase element, can incorporate a plurality of air intakes and erase elements.
  • the positions of the air intakes may be located alternating with the positions of the erasure elements or they may be coincident with the positions of the erasure elements, so that air enters the plenumum passing through the erasure elements. , causing the cleaning of the deletion elements.
  • the strip can also incorporate an internal air supply channel that communicates the erasure elements with an air impeller, so that the air passes through the erasure elements towards the outside of the plenum to be subsequently collected, in the blackboard environment, by air intakes.
  • the manual eraser may comprise an erasure element that encompasses the entire air intake or that the air intake is peripheral to the erasure element.
  • the manual eraser can also comprise an internal air supply channel that communicates the erase element with an air impeller, leaving the contaminated air out of the plenum, towards the board, to be collected by the air intake.
  • the extraction duct that communicates the outlet with the plenum can also be rigid or flexible, as in the case of the slat and the manual eraser, as it is intended to be integral with the cleaning port itself or that it is fixed in an independent place so that the cleaning port can be located in different areas, according to interest.
  • the extraction channel is in depression with respect to the room where the board is located. This depression is typically carried out by means of an air extractor that can incorporate a filter for the return of clean air to the environment. It is also configured to detect when a manual eraser has been deposited on the support surface, so that the extractor is activated.
  • FIG. 1 represents a perspective view of a perforated slate with holes in the writing surface and an extraction plenum connected to an outlet, indicating the entry and exit of the air.
  • FIG. 2 represents a sectional view of the slate of Figure 1, representing the direction of the air entering the board, exit and through the plenum.
  • FIG. 3 represents a perspective view of the slate of Figure 1 where an external duct has been incorporated into the slate plenum for the extraction of contaminated air that incorporates an air extractor and a filter before the outlet.
  • FIG. 4 represents a front view of a slate with a movable slat along guides for erasing the slate incorporating an extraction duct with an extractor and a filter before the air outlet.
  • FIG. 5 represents a front view of the board with the ribbon of Figure 4 where The extraction duct is a flexible tube.
  • FIG. 6 represents a side sectional view of the board with the ribbon of figure 4 showing the constituent elements and with the extraction duct located in a different position.
  • Figure 7 represents a partial sectional view of the area of the slat plenum of Figure 6, including several erasing elements and several air intakes.
  • Figure 8 represents the view of Figure 7 where the air intakes physically coincide with the erasing elements, so that the air absorbed into the plenum crosses the erasing surface.
  • FIG. 9 represents the view of Figure 7 where the plenum incorporates an internal air supply channel that communicates with the erasing elements so that the air is expelled outside by the manual drafts and is introduced into the plenum by the air intakes
  • FIG. 10 represents a sectional view of a manual eraser that incorporates a polluted air extraction channel connected to an extractor and a filter in the plenum before going outside through the outlet.
  • FIG. 11 represents a front view of a blackboard with a manual eraser that incorporates an extractor and an externally shaped filter connected by a flexible conduit.
  • Figure 12 represents a side sectional view of the manual eraser of Figure 11 showing the internal configuration of the plenum.
  • FIG. 13 represents a side sectional view of the manual eraser with air intakes peripherally surrounding the erasing elements.
  • Figure 14 represents the configuration of the manual eraser shown in Figure 13 where a supply channel that returns the air to the board through the erasing elements has been incorporated.
  • FIG. 15 represents a sectional view of a cleaning port for a manual eraser with the eraser on the perforated support surface with through holes showing the direction of air flow.
  • Figure 16 represents a view of Figure 15 incorporating an extractor and an air filter in the extraction duct before the outlet.
  • the invention consists of a system of improvement of the air quality in the environment of the slate by means of the localized extraction of the contaminated air, during its use, the system being able to be configured in different ways depending on of the devices you incorporate.
  • the system incorporates at least one of the devices mentioned below, being able to be several simultaneously:
  • the device incorporates an air extractor (6), which is responsible for aspirating the air from the room through the holes (8) of the perforated slate (T) ), passing through the plenum (2) to be expelled outside the device.
  • the device can incorporate an air filter (7) so that the contaminated air is filtered before leaving the device through the outlet (3).
  • Another way to solve the removal of contaminated air during the erasure of the board (1) is by incorporating into the system an erasing strip (10) that moves from one end of the board to the other (1), either horizontally, as depicted in figures 4 to 9, or also vertically.
  • an erasing strip (10) that moves from one end of the board to the other (1), either horizontally, as depicted in figures 4 to 9, or also vertically.
  • a pair of guides (9) located in parallel for the movement of the slat (10) are incorporated.
  • the slat (10) is vertical, for which two guides are available (9) horizontal next to the board (1), one above the top and one below the bottom, respectively, in areas located outside the writing area of the board (1).
  • the strip (10) is horizontal, for which there are two vertical guides (9) next to the board (1), one to the left of the left edge and one to the right of the right edge, respectively, in areas located outside the writing area of the board (1).
  • the slat (10) incorporates at each end a fixing element (4) which, preferably, incorporates a recess intended to accommodate the respective guide (9) for its sliding along said guides (9).
  • the fixing elements (4) can incorporate bearings or some type of mechanism that helps reduce friction during travel.
  • the cross-section of the hollow of the fixing element (4) and, therefore, of the guides (9) is circular.
  • the strip (10) comprises an erasure element (13) and an air extraction outlet (12) that sucks the air from the slate (1) towards a plenum of Extraction (2) located on the slat (10), as shown in Figure 6.
  • Both the erasing element (13) and the air extraction socket (12) occupy the entire height of the board (1) so that, in case of erasing the board (1) there is no area left without sweeping.
  • the erasing element (13) has as main object the erasure of the slate (1) by separating the chalk particles or marker ink adhered thereto, while the air extraction socket (12) is intended the extraction of particles that have already been separated from the board (1) by the erasure element (13) to be led to the outlet (3) of the extraction duct through the plenum (2).
  • the air intakes (12) are positioned alternately with respect to the erasing elements (13), as shown in Figure 7, so that the contaminated air is absorbed into the plenum (2) by the air intakes (12) without passing through the erasing elements (13).
  • the deletion element (13) is in contact with the board (1) and performs the deletion action when the erasing strip (10) moves through the guides (9).
  • the air extraction outlet (12) is responsible for the flow of incoming air from the outside of the slat (10) to the extraction plenum (2) inside the slat (10).
  • the result is that the inlet air is absorbed into the air intakes (12) including chalk or marker dust that the erasing elements (13) have detached from the board (1) to be led to the outlet ( 3) of the extraction duct through the plenum (2).
  • the erasing strip (10) can incorporate an air extractor (6), which causes the movement of the room air towards the plenum (2) inside the slat (10) and, preferably, also a filter (7), for filtering the air before leaving the device through the air outlet (3) so that the air is returned clean to the room or to the environment in general.
  • an air extractor (6) which causes the movement of the room air towards the plenum (2) inside the slat (10) and, preferably, also a filter (7), for filtering the air before leaving the device through the air outlet (3) so that the air is returned clean to the room or to the environment in general.
  • both the extractor (6) and the filter (7) are at a fixed point, not integral to the slat (10), and connected to the slat (10) through a flexible conduit (11), as depicted in figure 5.
  • the extractor (6) and the filter (7) are integral with the slat (10) and move with it.
  • figure 7 it is represented how the contaminated inlet air is absorbed towards the air intakes (12) to be subsequently directed towards the outlet (3) of the extraction duct through the plenum (2).
  • the air intakes (12) are located alternately with respect to the erase elements (13) so that, although some air may pass through the erase elements (13), most of it will be directed through the air intakes (12 ).
  • the plenum (2) incorporates an internal air supply channel (14) that communicates with the erasure elements (13), as shown in Figure 9, where the impellers have not been represented.
  • the air flow circulates in the opposite direction, leaving the erasing elements (13) towards the board (1) from the inner air supply channel (14).
  • the strip (10) can incorporate a motor to activate the movement along the guides (9).
  • the manual eraser (5) can incorporate an air extractor (6) and, alternatively, also a filter (7), as shown in Figure 10.
  • both the extractor (6) as the filter (7) can be incorporated inside the plenum (2), in the body of the manual eraser (15), for better protection, or next to it, in a recordable or external area, for better access to maintenance works
  • an air extractor (6) and, alternatively, a filter (7) may be located in an area outside the manual eraser (5), as shown in Figure 11, where both elements (6, 7) communicate with the manual eraser (5) through a flexible tube (11).
  • the incorporation of a filter (7) ensures that the dust generated in the erase process is accumulated in the manual eraser (5) or in an area outside the manual eraser (5) instead of move into the environment
  • the removal of contaminated air from the room towards the plenum (2) of the manual eraser (5) can be done through the erasure element (13) that configure the porous surface of erasure, as shown in the figures 10 and 12, or through air extraction outlets (12) located perimeter to the erase element (13), but not coincident, as shown in Figures 13 and 14.
  • the air does not require passing through the deletion element (13), thus avoiding the loss of load that this may entail.
  • the aspiration is focused on the perimeter of the erase element (13), which is the area that receives the most dust during the erase, so that cleaning is facilitated by aspiration located near that dirtiest area.
  • the manual eraser (5) also incorporates an internal air supply channel (14) that communicates an impeller, not shown in the figure, with the deletion element (13), as shown in the Figure 14.
  • the manual eraser (5) incorporates an internal air discharge channel (14) with one of its ends directed towards the erasing element (13) of the manual eraser (5) and in which another end is located an air impeller, not shown in the figures, of so that the cleaning of the erasing element (13) can be facilitated by the air flow to the erasing surface.
  • the manual eraser (5) also incorporates an air extraction outlet (12), located peripherally to the erasing element (13), so that the air leaving the manual eraser (5) by the erasing elements (13), it is absorbed again by this air extraction outlet (12) without leaving the manual eraser (5) to the room.
  • the air extraction flow rate is greater than the flow rate.
  • a cleaning of the erase element (13) is achieved, which can be carried out simultaneously with the erase process or in an independent way.
  • the manual eraser (5) impregnated with chalk or marker dust, which has been used for cleaning a slate (1), is coupled to a support surface (17) that incorporates through holes (16) , so it is perforated, and is located at the entrance of the cleaning port (18).
  • the extraction of air is activated, which causes the air in the room where the board is located (1) to enter the manual eraser (5) through the area around the body of the eraser (15) to cross the erase element (13) and exit to go to the plenum (2) of the cleaning port (18) and then to an exit mouth (3), causing the erase element to be cleaned (13).
  • Air extraction occurs because the plenum (2) is in depression with respect to the room where the board is located (1). This depression is due to the fact that the extraction duct is connected to an element in depression or, preferably, by the location of an extractor (6) that is either inside the plenum (2) or outside it, in the extraction duct, so that the required depression occurs.
  • the cleaning port (18) can incorporate a filter (7) next to the extractor (6), so that the air that is returned to the room or the environment, in general, is clean of impurities
  • the extraction duct that connects the outlet (3) with the cleaning port (18) it can be rigid or it can be a flexible conduit (11), so that it can be located in the most suitable position that favors the required depression.
  • the system of the invention can have at least one of the described devices (1 ', 5, 10, 18) for removing contaminated air.
  • the connections will contemplate the use of a single extractor (6), with or without filter (7), for an efficient non-redundant form of the system.
  • the outlet (3) of the extraction duct can be connected to the room, returning the air, or another space that can be outside.
  • the device (1', 5, 10, 18) may incorporate, although they have not been represented in the figures, a switch, a timer or a sensor that can be of presence, contact, pressure or movement, so that the air extractor (6) is activated by a method that can be manual or automatic and electrically activated by connection to the mains or by batteries, whether rechargeable or single use.

Abstract

The invention relates to a system for improving air quality around a blackboard (1) via localised extraction of contaminated air, which comprises at least one of the following devices: - a blackboard (1') perforated with openings (8) on the surface, - an eraser (10) capable of sliding in respective guides (9) along the blackboard (1), - a manual eraser (5) with an air intake (12), - a cleaning port (18) with a bearing surface (17) perforated with through-holes (16) for leaving the manual eraser (5), wherein: - each device comprises a plenum (2) or extraction chamber that communicates the room in which the blackboard (1) is placed with an outlet mouth (3) for extracting the air via an extraction duct, such that the pressure inside the plenum (2) is lower than the pressure inside the room.

Description

SISTEMA DE MEJORA DE LA CALIDAD DEL AIRE EN EL ENTORNO DE LA PIZARRA MEDIANTE EXTRACCIÓN LOCALIZADA DEL AIRE CONTAMINADO  AIR QUALITY IMPROVEMENT SYSTEM IN THE BOARD ENVIRONMENT BY LOCALIZED EXTRACTION OF THE POLLUTED AIR
DESCRIPCIÓN DESCRIPTION
OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION
La presente invención se refiere a un sistema de mejora de la calidad del aire en el entorno de una pizarra durante su utilización mediante la extracción localizada del aire contaminado, compuesto por uno o varios dispositivos cuya finalidad esencial es eliminar los contaminantes, ya sean partículas sólidas o contaminantes químicos, que se generan en la escritura en una pizarra, en el borrado de la pizarra o en la limpieza del borrador manual que se utiliza para borrar la pizarra, de modo que esos contaminantes no sean inhalados por los usuarios de la pizarra.  The present invention relates to an air quality improvement system in the environment of a slate during its use by localized extraction of contaminated air, consisting of one or several devices whose essential purpose is to eliminate contaminants, whether solid particles or chemical contaminants, which are generated by writing on a board, erasing the board or cleaning the manual eraser used to erase the board, so that those contaminants are not inhaled by users of the board.
El interés de esta invención se basa en que, si bien los contaminantes generados en la pizarra pueden no provocar un perjuicio excesivo en la calidad del aire de la estancia en la que se encuentran las pizarras, sí que pueden dar lugar a problemas de salud y bienestar de los profesores y los usuarios de las pizarras que las utilicen durante varias horas a la semana, debido a la intensidad de su uso y a la alta proximidad de estas personas a la zona concreta de generación de los contaminantes, como son la tiza, el rotulador, la pizarra o el borrador manual. The interest of this invention is based on the fact that, although the pollutants generated on the board may not cause excessive damage to the air quality of the room where the boards are located, they can lead to health problems and welfare of teachers and users of the boards that use them for several hours a week, due to the intensity of their use and the high proximity of these people to the specific area of generation of pollutants, such as chalk, marker pen, whiteboard or manual eraser.
PROBLEMA TÉCNICO A RESOLVER Y ANTECEDENTES DE LA INVENCIÓN TECHNICAL PROBLEM TO BE RESOLVED AND BACKGROUND OF THE INVENTION
Desde que la pizarra de tiza se empezó a utilizar en las paredes de las aulas en el siglo XIX, el problema relacionado con el control de la emisión de polvo durante el borrado de la pizarra o de la limpieza del borrador manual solo ha tenido avances de moderado alcance que principalmente han estado enfocados en los materiales a utilizar, el modo de fabricación y el diseño, tanto de las tizas como de los borradores manuales. Salvo mejoras en la composición y fabricación de las tizas para que emitan una menor cantidad de polvo durante la escritura, no se conocen importantes avances en lo referente a disminución de la generación de partículas de tiza durante la escritura, durante el borrado y durante la limpieza del borrador manual ni en lo referente a evitar que el polvo generado sea respirado por los profesores o por otros usuarios.  Since the chalkboard began to be used on the walls of the classrooms in the 19th century, the problem related to the control of the emission of dust during the erasure of the board or the cleaning of the manual eraser has only made progress in moderate scope that have mainly been focused on the materials to be used, the mode of manufacture and the design, both of the chalks and of the manual drafts. Except for improvements in the composition and manufacture of chalks so that they emit a smaller amount of dust during writing, no significant progress is known in terms of reducing the generation of chalk particles during writing, during erasure and during cleaning of the manual draft or in relation to preventing the generated dust from being breathed by teachers or other users.
Desde que las pizarras blancas de rotuladores se empezaron a comercializar en la década de los sesenta, salvo algunas mejoras en la composición de los rotuladores, no se conocen importantes avances en lo referente a disminución de la generación de contaminantes durante la escritura principalmente ni en lo referente a evitar que los contaminantes emitidos sean respirados por los profesores o por otros usuarios. Since white marker pens began to be marketed in the decade Of the sixties, except for some improvements in the composition of the markers, there are no known important advances in terms of decreasing the generation of pollutants during writing, mainly in relation to preventing the emitted pollutants from being breathed by teachers or by Other users.
Los efectos en la salud y el bienestar de profesores y otros usuarios de pizarras son generales, aunque se diferencian en función de que la pizarra sea de tiza o de rotuladores, de forma que, en el caso de pizarras para tizas se traducen en un mayor riesgo de padecer enfermedades o afecciones respiratorias como la afonía, sibilancia, bronquitis crónica, irritación del tracto respiratorio y caolinosis, mientras que, en el caso de pizarras para rotuladores, los problemas en la salud y en el bienestar se traducen en un mayor riesgo de padecer molestias olfativas, irritación respiratoria, náuseas y mareos, e incluso intoxicaciones en caso de inhalación excesiva. The effects on the health and well-being of teachers and other blackboard users are general, although they differ depending on whether the blackboard is made of chalk or markers, so that, in the case of chalk boards, they translate into greater risk of suffering from diseases or respiratory conditions such as aphonia, wheezing, chronic bronchitis, respiratory tract irritation and kaolinosis, while, in the case of whiteboards for markers, problems in health and well-being translate into a greater risk of suffer from olfactory discomfort, respiratory irritation, nausea and dizziness, and even poisoning in case of excessive inhalation.
Actualmente se intenta la sustitución de estas pizarras mediante la incorporación de pizarras electrónicas cuyo uso no emite polvo ni productos químicos contaminantes, aunque la complejidad de utilización y su alto coste en comparación con las pizarras tradicionales da lugar a que la utilización de las pizarras tradicionales, ya sea de tiza o de rotuladores, sigan incorporándose y utilizándose en centros de enseñanza de todos los niveles en todo el mundo, así como en edificios utilizados por empresas, instituciones e incluso en viviendas. Currently, the substitution of these slates is being attempted through the incorporation of electronic whiteboards whose use does not emit dust or contaminating chemicals, although the complexity of use and their high cost compared to traditional slates results in the use of traditional slates, either chalk or markers, continue to be incorporated and used in schools of all levels around the world, as well as in buildings used by companies, institutions and even homes.
La presente invención permite mejorar de un modo notable la calidad del aire a un usuario durante el uso de la pizarra mediante la utilización de uno o de varios de los dispositivos descritos sin necesidad de incurrir en el alto coste de una pizarra electrónica ni de requerir de la complejidad de su utilización. The present invention makes it possible to significantly improve the air quality of a user during the use of the board by using one or more of the devices described without incurring the high cost of an electronic board or requiring The complexity of its use.
DESCRIPCIÓN DE LA INVENCIÓN DESCRIPTION OF THE INVENTION
Con el fin de alcanzar los objetivos y evitar los inconvenientes mencionados anteriormente, la presente invención describe un sistema de mejora de la calidad del aire en el entorno de una pizarra mediante extracción localizada del aire contaminado.  In order to achieve the objectives and avoid the aforementioned drawbacks, the present invention describes a system for improving air quality in the environment of a slate by localized extraction of contaminated air.
El sistema puede comprender una serie de dispositivos, todos ellos independientes entre sí, aunque complementarios entre ellos, pudiendo compartir algún tipo de conexiones o elementos comunes, de forma que no se instalen de forma redundante. Entre los dispositivos se encuentran los siguientes: The system can comprise a series of devices, all of them independent of each other, although complementary to each other, being able to share some type of connections or common elements, so that they are not installed redundantly. Among the devices are the following:
- Una pizarra perforada con orificios en la superficie para la extracción del material contaminante, ya sea polvo de tiza o restos de rotulador,  - A perforated slate with holes in the surface for the extraction of the contaminating material, either chalk dust or marker residue,
- Un listón de borrado con unos elementos de borrado que están en contacto con la pizarra para llevar a cabo el borrado y una toma de aire para la extracción del aire contaminado, que también comprende un elemento de fijación en cada uno de los extremos para el deslizamiento por sendas guías a lo largo de la pizarra,  - An erasing strip with erasing elements that are in contact with the board to carry out the erasure and an air intake for the extraction of the contaminated air, which also comprises a fixing element at each end for the sliding along paths along the board,
- Un borrador manual, formado por un cuerpo y unos elementos de borrado que forman la superficie de borrado y una toma de aire para la extracción del aire contaminado,  - A manual eraser, consisting of a body and some erasing elements that form the erasing surface and an air intake for the extraction of contaminated air,
- Un puerto de limpieza para el borrador manual con una superficie de apoyo, para el depósito del borrador manual, perforada con huecos pasantes para la extracción del material contaminante, ya sea polvo de tiza o restos de rotulador.  - A cleaning port for the manual eraser with a support surface, for the deposit of the manual eraser, perforated with through holes for the extraction of the contaminating material, either chalk dust or marker residue.
Cada uno de los dispositivos mencionados comprende un plénum o cámara de extracción que comunica la sala donde se encuentra la pizarra con una boca de salida para la extracción del aire mediante un conducto de extracción, de forma que el plénum se encuentra en depresión con respecto a la sala. Each of the aforementioned devices comprises a plenum or extraction chamber that communicates the room where the board is located with an outlet for the extraction of air through an extraction duct, so that the plenum is in depression with respect to the living room.
La comunicación del plénum con la sala se lleva a cabo de la siguiente manera: The communication of the plenum with the room is carried out as follows:
- en la pizarra perforada, a través de los orificios,  - on the perforated slate, through the holes,
- en el listón y en el borrador manual, a través de la toma de aire, y  - on the ribbon and on the manual eraser, through the air intake, and
- en el puerto de limpieza, a través de los huecos pasantes.  - in the cleaning port, through the through holes.
Cada uno de los dispositivos está capacitado para incorporar un extractor, para la extracción del aire desde la sala hacia el conducto de extracción que termina en la boca de salida, un filtro para la devolución del aire contaminado ya filtrado al exterior, a la sala o a otro espacio, o ambos conjuntamente. En caso de que el sistema incorpore más de un dispositivo y el sistema necesite incorporar extractor, filtro o ambos, el sistema puede configurarse para que únicamente incluya uno de los elementos y así no encontrarse en redundancia que, a pesar de poder ser más eficiente, es menos rentable. Each of the devices is capable of incorporating an extractor, for the extraction of air from the room to the extraction duct that ends at the outlet, a filter for the return of contaminated air already filtered outside, to the room or another space, or both together. In case the system incorporates more than one device and the system needs to incorporate extractor, filter or both, the system can be configured to only include one of the elements and thus not be in redundancy which, despite being more efficient, It is less profitable.
En los casos en que el sistema incorpore un extractor o filtro, estos pueden estar ubicados en una posición en el interior del plénum o en el conducto de extracción aguas arriba de la boca de salida. Por otro lado, en caso de incorporar extractor de aire, los dispositivos necesitan incorporar una conexión eléctrica para la activación, que puede ser mediante un interruptor, un temporizador o un sensor que, a su vez, puede ser presencial, de contacto, de presión o de movimiento. In cases where the system incorporates an extractor or filter, these may be located in a position inside the plenum or in the extraction duct upstream of the outlet. On the other hand, in case of incorporating an air extractor, the devices need to incorporate an electrical connection for activation, which can be by means of a switch, a timer or a sensor that, in turn, can be face-to-face, contact, pressure or of movement.
La conexión eléctrica para la activación del extractor de aire puede ser mediante una conexión a una toma de red o mediante batería que, a su vez, puede ser recargable o de un solo uso. The electrical connection for the activation of the air extractor can be by means of a connection to a mains outlet or by means of a battery that, in turn, can be rechargeable or of a single use.
Haciendo referencia al listón, el conducto de extracción que comunica la boca de salida con el plénum puede ser rígido, de forma que se encuentre solidario con el listón y la boca de salida se desplace con el propio listón, o puede ser flexible, de forma que no sea solidario al listón y la boca de salida se encuentre fija, por ejemplo, a alguna pared. Referring to the slat, the extraction duct that communicates the outlet with the plenum can be rigid, so that it is integral with the slat and the outlet is moved with the slat itself, or it can be flexible, so that is not integral to the bar and the outlet is fixed, for example, to a wall.
Esto mismo ocurre con el borrador manual, donde el conducto de extracción que comunica la boca de salida con el plénum también puede ser rígido o flexible, según se persiga que sea solidario al propio borrador manual o que se encuentre fijo en un lugar independiente del borrador manual. The same applies to the manual eraser, where the extraction duct that communicates the outlet with the plenum can also be rigid or flexible, depending on whether it is intended to be integral to the manual eraser or to be fixed in a place independent of the eraser manual.
Para la extracción del aire contaminado de la sala, el listón, en lugar de una única toma de aire y un elemento de borrado continuo, puede incorporar una pluralidad de tomas de aire y de elementos de borrado. En estos casos, las posiciones de las tomas de aire pueden encontrarse ubicadas alternando con las posiciones de los elementos de borrado o pueden encontrarse coincidentes con las posiciones de los elementos de borrado, de forma que el aire entra al plénum pasando por los elementos de borrado, provocando la limpieza de los elementos de borrado. For the removal of contaminated air from the room, the strip, instead of a single air intake and a continuous erase element, can incorporate a plurality of air intakes and erase elements. In these cases, the positions of the air intakes may be located alternating with the positions of the erasure elements or they may be coincident with the positions of the erasure elements, so that air enters the plenumum passing through the erasure elements. , causing the cleaning of the deletion elements.
Como componente adicional, el listón también puede incorporar un canal interior de impulsión de aire que comunica los elementos de borrado con un impulsor de aire, de forma que el aire atraviese los elementos de borrado hacia el exterior del plénum para ser posteriormente recogido, en el entorno de la pizarra, por las tomas de aire. As an additional component, the strip can also incorporate an internal air supply channel that communicates the erasure elements with an air impeller, so that the air passes through the erasure elements towards the outside of the plenum to be subsequently collected, in the blackboard environment, by air intakes.
Por su parte, el borrador manual puede comprender un elemento de borrado que abarca toda la toma de aire o bien que la toma de aire sea periférica al elemento de borrado. Al igual que el listón, el borrador manual también puede comprender un canal interior de impulsión de aire que comunica el elemento de borrado con un impulsor de aire, saliendo el aire contaminado hacia el exterior del plénum, hacia la pizarra, para ser recogido por la toma de aire. For its part, the manual eraser may comprise an erasure element that encompasses the entire air intake or that the air intake is peripheral to the erasure element. Like the ribbon, the manual eraser can also comprise an internal air supply channel that communicates the erase element with an air impeller, leaving the contaminated air out of the plenum, towards the board, to be collected by the air intake.
En el puerto de limpieza, el conducto de extracción que comunica la boca de salida con el plénum también puede ser rígido o flexible, al igual que en el caso del listón y del borrador manual, según se persiga que sea solidario al propio puerto de limpieza o que se encuentre fijo en un lugar independiente de forma que el puerto de limpieza pueda ubicarse en diferentes zonas, según interese. El canal de extracción se encuentra en depresión con respecto a la sala donde se ubica la pizarra. Esta depresión típicamente se lleva a cabo mediante un extractor de aire que puede incorporar un filtro para la devolución del aire limpio al medio ambiente. También está configurado para detectar cuando un borrador manual ha sido depositado en la superficie de apoyo, de forma que se active el extractor. In the cleaning port, the extraction duct that communicates the outlet with the plenum can also be rigid or flexible, as in the case of the slat and the manual eraser, as it is intended to be integral with the cleaning port itself or that it is fixed in an independent place so that the cleaning port can be located in different areas, according to interest. The extraction channel is in depression with respect to the room where the board is located. This depression is typically carried out by means of an air extractor that can incorporate a filter for the return of clean air to the environment. It is also configured to detect when a manual eraser has been deposited on the support surface, so that the extractor is activated.
BREVE DESCRIPCIÓN DE LAS FIGURAS BRIEF DESCRIPTION OF THE FIGURES
Para completar la descripción de la invención y con objeto de ayudar a una mejor comprensión de sus características, de acuerdo con un ejemplo preferente de realización de la misma, se acompaña un conjunto de dibujos en donde, con carácter ilustrativo y no limitativo, se han representado las siguientes figuras:  To complete the description of the invention and in order to help a better understanding of its characteristics, in accordance with a preferred example of its realization, a set of drawings is attached where, for illustrative and non-limiting purposes, represented the following figures:
- La figura 1 representa una vista en perspectiva de una pizarra perforada con orificios en la superficie de escritura y un plénum de extracción conectado a una boca de salida, indicando la entrada y salida del aire. - Figure 1 represents a perspective view of a perforated slate with holes in the writing surface and an extraction plenum connected to an outlet, indicating the entry and exit of the air.
- La figura 2 representa una vista en sección de la pizarra de la figura 1 , representando la dirección del aire de entrada en la pizarra, de salida y a través del plénum.  - Figure 2 represents a sectional view of the slate of Figure 1, representing the direction of the air entering the board, exit and through the plenum.
- La figura 3 representa una vista en perspectiva de la pizarra de la figura 1 donde se ha incorporado un conducto externo al plénum de la pizarra para la extracción del aire contaminado que incorpora un extractor de aire y un filtro antes de la boca de salida.  - Figure 3 represents a perspective view of the slate of Figure 1 where an external duct has been incorporated into the slate plenum for the extraction of contaminated air that incorporates an air extractor and a filter before the outlet.
- La figura 4 representa una vista frontal de una pizarra con un listón desplazable a lo largo de unas guías para el borrado de la pizarra incorporando un conducto de extracción con un extractor y un filtro antes de la boca de salida del aire.  - Figure 4 represents a front view of a slate with a movable slat along guides for erasing the slate incorporating an extraction duct with an extractor and a filter before the air outlet.
- La figura 5 representa una vista frontal de la pizarra con el listón de la figura 4 donde el conducto de extracción es un tubo flexible. - Figure 5 represents a front view of the board with the ribbon of Figure 4 where The extraction duct is a flexible tube.
- La figura 6 representa una vista en sección lateral de la pizarra con el listón de la figura 4 mostrando los elementos constitutivos y con el conducto de extracción ubicado en una posición diferente.  - Figure 6 represents a side sectional view of the board with the ribbon of figure 4 showing the constituent elements and with the extraction duct located in a different position.
- La figura 7 representa una vista parcial seccionada de la zona del plénum del listón de la figura 6, incluyendo varios elementos de borrado y varias tomas de aire.  - Figure 7 represents a partial sectional view of the area of the slat plenum of Figure 6, including several erasing elements and several air intakes.
- La figura 8 representa la vista de la figura 7 donde las tomas de aire coinciden físicamente con los elementos de borrado, de forma que el aire absorbido hacia el plénum atraviesa la superficie de borrado.  - Figure 8 represents the view of Figure 7 where the air intakes physically coincide with the erasing elements, so that the air absorbed into the plenum crosses the erasing surface.
- La figura 9 representa la vista de la figura 7 donde el plénum incorpora un canal interior de impulsión de aire que comunica con los elementos de borrado de forma que el aire se expulsa al exterior por los borradores manuales y se introduce en el plénum por las tomas de aire.  - Figure 9 represents the view of Figure 7 where the plenum incorporates an internal air supply channel that communicates with the erasing elements so that the air is expelled outside by the manual drafts and is introduced into the plenum by the air intakes
- La figura 10 representa una vista en sección de un borrador manual que incorpora en el plénum un canal de extracción de aire contaminado conectado a un extractor y un filtro antes de salir al exterior por la boca de salida.  - Figure 10 represents a sectional view of a manual eraser that incorporates a polluted air extraction channel connected to an extractor and a filter in the plenum before going outside through the outlet.
- La figura 11 representa una vista frontal de una pizarra con un borrador manual que incorpora un extractor y un filtro de forma externa unidos mediante un conducto flexible.  - Figure 11 represents a front view of a blackboard with a manual eraser that incorporates an extractor and an externally shaped filter connected by a flexible conduit.
- La figura 12 representa una vista en sección lateral del borrador manual de la figura 11 mostrando la configuración interna del plénum.  - Figure 12 represents a side sectional view of the manual eraser of Figure 11 showing the internal configuration of the plenum.
- La figura 13 representa una vista en sección lateral del borrador manual con unas tomas de aire rodeando periféricamente a los elementos de borrado.  - Figure 13 represents a side sectional view of the manual eraser with air intakes peripherally surrounding the erasing elements.
- La figura 14 representa la configuración del borrador manual representado en la figura 13 donde se ha incorporado un canal de impulsión que devuelve el aire hacia la pizarra a través de los elementos de borrado.  - Figure 14 represents the configuration of the manual eraser shown in Figure 13 where a supply channel that returns the air to the board through the erasing elements has been incorporated.
- La figura 15 representa una vista en sección de un puerto de limpieza para un borrador manual con el borrador en la superficie de apoyo perforada con huecos pasantes mostrando la dirección del flujo de aire.  - Figure 15 represents a sectional view of a cleaning port for a manual eraser with the eraser on the perforated support surface with through holes showing the direction of air flow.
- La figura 16 representa una vista de la figura 15 incorporando un extractor y un filtro de aire en el conducto de extracción antes de la boca de salida.  - Figure 16 represents a view of Figure 15 incorporating an extractor and an air filter in the extraction duct before the outlet.
A continuación se facilita un listado de las referencias empleadas en las figuras: The following is a list of the references used in the figures:
1. Pizarra.  1. Blackboard.
1’. Pizarra perforada. 2. Plénum de extracción. 1'. Perforated slate. 2. Extraction plenum.
3. Boca de salida.  3. Outlet.
4. Elementos de fijación.  4. Fixing elements.
5. Borrador manual.  5. Manual draft.
6. Extractor de aire.  6. Air extractor.
7. Filtro de aire.  7. Air filter.
8. Orificios.  8. Holes.
9. Guías.  9. Guides.
10. Listón de borrado.  10. Clearing strip.
11. Tubo flexible.  11. Flexible tube.
12. Tomas de aire.  12. Air intakes.
13. Elementos de borrado.  13. Deletion elements.
14. Canal interior de impulsión de aire.  14. Inside air discharge channel.
15. Cuerpo del borrador manual.  15. Manual eraser body.
16. Huecos pasantes.  16. Through holes.
17. Superficie de apoyo.  17. Support surface.
18. Puerto de limpieza.  18. Cleaning port.
DESCRIPCIÓN DE UNA REALIZACIÓN PREFERENTE DE LA INVENCIÓN DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION
Para lograr los objetivos indicados en anteriores apartados, la invención consiste en un sistema de mejora de la calidad del aire en el entorno de la pizarra mediante la extracción localizada del aire contaminado, durante su utilización, pudiendo el sistema estar configurado de diferentes formas en función de los dispositivos que incorpore. Para ello, el sistema incorpora al menos uno de los dispositivos que se citan a continuación, pudiendo ser varios simultáneamente:  In order to achieve the objectives indicated in previous sections, the invention consists of a system of improvement of the air quality in the environment of the slate by means of the localized extraction of the contaminated air, during its use, the system being able to be configured in different ways depending on of the devices you incorporate. For this, the system incorporates at least one of the devices mentioned below, being able to be several simultaneously:
- Una pizarra perforada (T) para absorción de contaminantes mediante la extracción del aire a través de los orificios (8) de su superficie. - A perforated slate (T) for absorption of contaminants by extracting the air through the holes (8) of its surface.
- Un listón (10) que se desplaza linealmente para el borrado de la pizarra (1).  - A ribbon (10) that moves linearly to erase the board (1).
- Un borrador manual (5) con aspiración para el borrado de la pizarra (1).  - A manual eraser (5) with aspiration for erasing the board (1).
- Un puerto de limpieza (18) para el borrador manual (5) de la pizarra (1).  - A cleaning port (18) for the manual eraser (5) of the board (1).
A continuación se hace una descripción de cada uno de estos dispositivos (T, 5, 10, 18). Below is a description of each of these devices (T, 5, 10, 18).
A) PIZARRA PERFORADA (1’) PARA ABSORCIÓN DE CONTAMINANTES MEDIANTE LA EXTRACCIÓN DEL AIRE A TRAVÉS DE LOS ORIFICIOS (8) DE SU SUPERFICIE. Según se representa en las figuras 1 a 3, la extracción del aire contaminado durante la escritura en la pizarra (1), independientemente de que sea blanca o de tiza, se puede solucionar mediante la disposición de una pizarra perforada (T) que incorpora orificios (8) en la superficie de escritura. El aire contaminado de la superficie de la pizarra perforada (T) es extraído desde la sala en la que se ubica la pizarra perforada (T) a través de los orificios (8) ubicados en la superficie de la pizarra perforada (T) para pasar a un plénum de extracciónA) PERFORATED SLATE (1 ') FOR CONTAMINANT ABSORPTION THROUGH THE AIR EXTRACTION THROUGH THE HOLES (8) OF ITS SURFACE. As shown in Figures 1 to 3, the removal of contaminated air during writing on the board (1), regardless of whether it is white or chalk, can be solved by the provision of a perforated board (T) that incorporates holes (8) on the writing surface. Contaminated air from the surface of the perforated slate (T) is extracted from the room in which the perforated slate (T) is located through the holes (8) located on the surface of the perforated slate (T) to pass to an extraction plenum
(2) ubicado en la zona posterior de la pizarra perforada (T), que se encuentra en depresión con respecto a la sala para ser extraído a través de un conducto de extracción hasta una boca de salida (3). De esta forma, el aire arrastra en su desplazamiento los gases de los rotuladores o el polvo de tiza, en función del tipo de pizarra (1) de que se trate. (2) located in the back area of the perforated slate (T), which is in depression with respect to the room to be extracted through an extraction duct to an outlet (3). In this way, the air carries in its displacement the gases of the markers or the chalk dust, depending on the type of slate (1) in question.
En una primera forma de realización, según se representa en la figura 2, la boca de salidaIn a first embodiment, as shown in Figure 2, the outlet
(3) para la extracción del aire contaminado del plénum de extracción (2) se encuentra directamente conectada a un conducto en depresión o elemento de aspiración de aire, no representado en la figura, externo al dispositivo. (3) for the extraction of contaminated air from the extraction plenum (2) it is directly connected to a duct in depression or air intake element, not shown in the figure, external to the device.
En una segunda forma de realización, según se representa en la figura 3, el dispositivo incorpora un extractor de aire (6), que se encarga de aspirar el aire de la estancia a través de los orificios (8) de la pizarra perforada (T), pasando por el plénum (2) para ser expulsado al exterior del dispositivo. In a second embodiment, as shown in Figure 3, the device incorporates an air extractor (6), which is responsible for aspirating the air from the room through the holes (8) of the perforated slate (T) ), passing through the plenum (2) to be expelled outside the device.
En cualquiera de las diferentes formas de realización, el dispositivo puede incorporar un filtro de aire (7) de modo que el aire contaminado sea filtrado antes de abandonar el dispositivo por la boca de salida (3). In any of the different embodiments, the device can incorporate an air filter (7) so that the contaminated air is filtered before leaving the device through the outlet (3).
B) LISTÓN DE BORRADO (10) QUE SE DESPLAZA A LO LARGO DE LA PIZARRA (1).B) DELETE LIST (10) THAT MOVES THROUGH THE SLATE (1).
Otra forma de solucionar la extracción del aire contaminado durante el borrado de la pizarra (1) es mediante la incorporación en el sistema de un listón de borrado (10) que se desplaza de un extremo a otro de la pizarra (1), ya sea horizontalmente, según se representa en las figuras 4 a 9, o también verticalmente. Para el deslizamiento del listón (10), exteriormente a la pizarra (1) y en dos lados opuestos se incorporan un par de guías (9) ubicadas en paralelo para el movimiento del listón (10). Another way to solve the removal of contaminated air during the erasure of the board (1) is by incorporating into the system an erasing strip (10) that moves from one end of the board to the other (1), either horizontally, as depicted in figures 4 to 9, or also vertically. For the sliding of the slat (10), externally to the board (1) and on two opposite sides a pair of guides (9) located in parallel for the movement of the slat (10) are incorporated.
En una forma de realización, el listón (10) es vertical, para lo que se dispone de dos guías (9) horizontales junto a la pizarra (1), una por encima de la parte superior y otra por debajo de la parte inferior, respectivamente, en unas zonas ubicadas fuera de la zona de escritura de la pizarra (1). In one embodiment, the slat (10) is vertical, for which two guides are available (9) horizontal next to the board (1), one above the top and one below the bottom, respectively, in areas located outside the writing area of the board (1).
En otra forma de realización, el listón (10) es horizontal, para lo que se dispone de dos guías (9) verticales junto a la pizarra (1), una a la izquierda del borde izquierdo y otra a la derecha del borde derecho, respectivamente, en zonas ubicadas fuera de la zona de escritura de la pizarra (1). In another embodiment, the strip (10) is horizontal, for which there are two vertical guides (9) next to the board (1), one to the left of the left edge and one to the right of the right edge, respectively, in areas located outside the writing area of the board (1).
Por su parte, el listón (10) incorpora en cada extremo un elemento de fijación (4) que, preferiblemente, incorpora un hueco destinado a alojar a la respectiva guía (9) para su deslizamiento a lo largo de dichas guías (9). Para facilitar el deslizamiento, los elementos de fijación (4) pueden incorporar rodamientos o algún tipo de mecanismo que ayude a reducir el rozamiento durante el desplazamiento. On the other hand, the slat (10) incorporates at each end a fixing element (4) which, preferably, incorporates a recess intended to accommodate the respective guide (9) for its sliding along said guides (9). To facilitate sliding, the fixing elements (4) can incorporate bearings or some type of mechanism that helps reduce friction during travel.
Preferiblemente, la sección transversal del hueco del elemento de fijación (4) y, por tanto, de las guías (9) es circular. En cualquier caso, ni los huecos tienen por qué ser circulares, ni los elementos de fijación (4) tienen por qué incorporar huecos, pudiendo incorporar alternativamente cualquier otra forma de fijación con formas complementarias para el deslizamiento de los elementos de fijación (4) a lo largo de las guías (9) como, por ejemplo, unas ruedas que se desplazan por unos carriles. Preferably, the cross-section of the hollow of the fixing element (4) and, therefore, of the guides (9) is circular. In any case, neither the holes have to be circular, nor the fixing elements (4) have to incorporate holes, being able to alternatively incorporate any other form of fixing with complementary shapes for the sliding of the fixing elements (4) to along the guides (9), for example, wheels that move along rails.
Para llevar a cabo el borrado de la pizarra (1), el listón (10) comprende un elemento de borrado (13) y una toma de extracción de aire (12) que succiona el aire de la pizarra (1) hacia un plénum de extracción (2) ubicado en el listón (10), según se representa en la figura 6. Tanto el elemento de borrado (13) como la toma de extracción de aire (12) ocupan toda la altura de la pizarra (1) de forma que, en caso de borrar la pizarra (1) no quede ninguna zona sin barrer. El elemento de borrado (13) tiene por objeto principal el borrado de la pizarra (1) mediante la separación de las partículas de tiza o de tinta de rotulador adheridos a ella, mientras que la toma de extracción de aire (12) tiene por objeto la extracción de las partículas que ya han sido separadas de la pizarra (1) por el elemento de borrado (13) para ser conducidas hacia la boca de salida (3) del conducto de extracción a través del plénum (2). To carry out the erasure of the slate (1), the strip (10) comprises an erasure element (13) and an air extraction outlet (12) that sucks the air from the slate (1) towards a plenum of Extraction (2) located on the slat (10), as shown in Figure 6. Both the erasing element (13) and the air extraction socket (12) occupy the entire height of the board (1) so that, in case of erasing the board (1) there is no area left without sweeping. The erasing element (13) has as main object the erasure of the slate (1) by separating the chalk particles or marker ink adhered thereto, while the air extraction socket (12) is intended the extraction of particles that have already been separated from the board (1) by the erasure element (13) to be led to the outlet (3) of the extraction duct through the plenum (2).
Tanto el elemento de borrado (13) como la toma de aire (12), en lugar de estar configurados por un único elemento individual, pueden estar formados por varios, pudiendo haber varios elementos de borrado (13) y también varias tomas de aire (12), según se representa en las figuras 7 y 8. De hecho, las posiciones de las tomas de aire (12) pueden coincidir físicamente con las posiciones de los elementos de borrado (13), según se representa en la figura 8. El resultado de esta configuración es que el aire contaminado es absorbido hacia las tomas de aire (12) y forzado a pasar por los elementos de borrado (13) antes de llegar al plénum de extracción (2) del interior del listón. En caso contrario, las tomas de aire (12) se encuentran posicionadas alternadamente con respecto a los elementos de borrado (13), según se representa en la figura 7, de forma que el aire contaminado es absorbido hacia el plénum (2) por las tomas de aire (12) sin pasar por los elementos de borrado (13). Both the erase element (13) and the air intake (12), instead of being configured by a single individual element, they can be formed by several, being able to be several erasing elements (13) and also several air intakes (12), as shown in figures 7 and 8. In fact, the positions of the air intakes air (12) can physically coincide with the positions of the erase elements (13), as shown in figure 8. The result of this configuration is that the contaminated air is absorbed into the air intakes (12) and forced to go through the deletion elements (13) before reaching the extraction plenum (2) inside the slat. Otherwise, the air intakes (12) are positioned alternately with respect to the erasing elements (13), as shown in Figure 7, so that the contaminated air is absorbed into the plenum (2) by the air intakes (12) without passing through the erasing elements (13).
El elemento de borrado (13) está en contacto con la pizarra (1) y realiza la acción de borrado al desplazarse el listón (10) de borrado por las guías (9). Por su parte, la toma de extracción de aire (12) se encarga del flujo de aire de entrada desde el exterior del listón (10) hacia el plénum de extracción (2) en el interior del listón (10). El resultado es que el aire de entrada es absorbido hacia las tomas de aire (12) incluyendo polvo de tiza o de rotulador que los elementos de borrado (13) han desprendido de la pizarra (1) para ser conducidos hacia la boca de salida (3) del conducto de extracción a través del plénum (2). The deletion element (13) is in contact with the board (1) and performs the deletion action when the erasing strip (10) moves through the guides (9). For its part, the air extraction outlet (12) is responsible for the flow of incoming air from the outside of the slat (10) to the extraction plenum (2) inside the slat (10). The result is that the inlet air is absorbed into the air intakes (12) including chalk or marker dust that the erasing elements (13) have detached from the board (1) to be led to the outlet ( 3) of the extraction duct through the plenum (2).
El listón de borrado (10) puede incorporar un extractor de aire (6), que provoca el movimiento del aire de la sala hacia el plénum (2) del interior del listón (10) y, preferentemente, también un filtro (7), para el filtrado del aire antes de salir del dispositivo por la boca de salida de aire (3) de forma que el aire se devuelva limpio a la sala o al medio ambiente en general. The erasing strip (10) can incorporate an air extractor (6), which causes the movement of the room air towards the plenum (2) inside the slat (10) and, preferably, also a filter (7), for filtering the air before leaving the device through the air outlet (3) so that the air is returned clean to the room or to the environment in general.
En una forma de realización, tanto el extractor (6) como el filtro (7) se encuentran en un punto fijo, no solidario al listón (10), y conectados al listón (10) a través de un conducto flexible (11), según se representa en la figura 5. In one embodiment, both the extractor (6) and the filter (7) are at a fixed point, not integral to the slat (10), and connected to the slat (10) through a flexible conduit (11), as depicted in figure 5.
En otra forma de realización, según se representa en las figuras 4 y 6, el extractor (6) y el filtro (7) son solidarios al listón (10) y se desplazan con él. In another embodiment, as shown in Figures 4 and 6, the extractor (6) and the filter (7) are integral with the slat (10) and move with it.
En la figura 7 se representa como el aire de entrada contaminado es absorbido hacia las tomas de aire (12) para dirigirse posteriormente hacia la boca de salida (3) del conducto de extracción a través del plénum (2). En este caso, las tomas de aire (12) se encuentran ubicadas alternadamente con respecto a los elementos de borrado (13) de forma que, a pesar de que algo de aire podrá pasar a través de los elementos de borrado (13), la mayor parte se dirigirá a través de las tomas de aire (12). In figure 7 it is represented how the contaminated inlet air is absorbed towards the air intakes (12) to be subsequently directed towards the outlet (3) of the extraction duct through the plenum (2). In this case, the air intakes (12) are located alternately with respect to the erase elements (13) so that, although some air may pass through the erase elements (13), most of it will be directed through the air intakes (12 ).
Una forma de realización alternativa es la representada en la figura 8 donde se hace coincidir las tomas de aire (12) con los elementos de borrado (13), de forma que las partículas de polvo de tiza o de tinta desprendidas de la pizarra (1) se vean atraídas hacia los elementos de borrado (13) y tiendan a adherirse o a atravesar los mismos antes de llegar al plénum de extracción (2). An alternative embodiment is that shown in Figure 8 where the air intakes (12) coincide with the erasing elements (13), so that the chalk or ink dust particles detached from the slate (1 ) are attracted to the erasure elements (13) and tend to adhere or pass through them before reaching the extraction plenum (2).
En otra forma de realización alternativa, el plénum (2) incorpora un canal interior de impulsión de aire (14) que comunica con los elementos de borrado (13), según se representa en la figura 9, donde los impulsores no han sido representados. En esta forma de realización, el flujo de aire circula en dirección contraria, saliendo por los elementos de borrado (13) hacia la pizarra (1) desde el canal interior de impulsión de aire (14). El resultado de esta configuración es que el aire de entrada es absorbido hacia las tomas de aire (12) incluyendo polvo de tiza o de rotulador que los elementos de borrado (13) han desprendido de la pizarra, pudiendo estar ayudado o complementado este proceso por la impulsión, desde los canales interiores de impulsión de aire (14), del aire que atraviesa los elementos de borrado (13) y que provoca que, partículas de polvo de tiza o de tinta de rotulador adheridas a los elementos de borrado (13), se desprendan de estos elementos y sean absorbidos a través de las tomas de aire (12) hacia el plénum de extracción (2) del interior del listón (10), produciéndose de ese modo la limpieza de los elementos de borrado (13). Cabe señalar que el caudal de aire de impulsión que sale al exterior del listón (10) por los elementos de borrado (13) es inferior al caudal de aire que entra en el listón (10) por las tomas de aire (12). In another alternative embodiment, the plenum (2) incorporates an internal air supply channel (14) that communicates with the erasure elements (13), as shown in Figure 9, where the impellers have not been represented. In this embodiment, the air flow circulates in the opposite direction, leaving the erasing elements (13) towards the board (1) from the inner air supply channel (14). The result of this configuration is that the incoming air is absorbed into the air intakes (12) including chalk or marker dust that the erasing elements (13) have detached from the board, this process can be helped or complemented by the discharge, from the internal air supply channels (14), of the air that passes through the erasure elements (13) and which causes chalk particles or marker ink particles adhered to the erasure elements (13) , they detach from these elements and are absorbed through the air intakes (12) towards the extraction plenum (2) inside the slat (10), thereby cleaning the erasing elements (13). It should be noted that the flow of discharge air exiting the slat (10) by the erasing elements (13) is lower than the flow of air entering the lath (10) by the air intakes (12).
El listón (10) puede incorporar un motor para activar el desplazamiento a lo largo de las guías (9). The strip (10) can incorporate a motor to activate the movement along the guides (9).
C) BORRADOR MANUAL (5) CON ASPIRACIÓN PARA EL BORRADO DE LA PIZARRAC) MANUAL DRAFT (5) WITH SUCTION FOR DELETING THE BOARD
( (
Otra forma de solucionar la extracción del aire contaminado durante el borrado de la pizarra (1) es mediante la incorporación en el sistema de un borrador manual (5) conectado a una toma de extracción de aire, de modo que el aire entra desde la sala al plénum (2) del borrador manual (5) y es dirigido hacia la boca de salida (3) del conducto de extracción. Este dispositivo se representa en las figuras 10 a 14. Another way to solve the removal of contaminated air during the erasure of the board (1) is by incorporating into the system a manual eraser (5) connected to an air extraction outlet, so that the air enters from the room to the plenum (2) of manual eraser (5) and is directed towards the outlet (3) of the extraction duct. This device is depicted in figures 10 to 14.
En una forma de realización, el borrador manual (5) puede incorporar un extractor de aire (6) y, alternativamente, también un filtro (7), según se representa en la figura 10. En estos casos, tanto el extractor (6) como el filtro (7) pueden estar incorporados en el interior del plénum (2), en el cuerpo del borrador manual (15), para su mejor protección, o junto a él, en una zona registrable o externa, para un mejor acceso para labores de mantenimiento In one embodiment, the manual eraser (5) can incorporate an air extractor (6) and, alternatively, also a filter (7), as shown in Figure 10. In these cases, both the extractor (6) as the filter (7) can be incorporated inside the plenum (2), in the body of the manual eraser (15), for better protection, or next to it, in a recordable or external area, for better access to maintenance works
En otra forma de realización, un extractor de aire (6) y, también de forma alternativa, un filtro (7) pueden estar ubicados en una zona externa al borrador manual (5), como se representa en la figura 11 , donde ambos elementos (6, 7) se comunican con el borrador manual (5) a través de un tubo flexible (11). In another embodiment, an air extractor (6) and, alternatively, a filter (7) may be located in an area outside the manual eraser (5), as shown in Figure 11, where both elements (6, 7) communicate with the manual eraser (5) through a flexible tube (11).
A pesar de ser un elemento prescindible, la incorporación de un filtro (7) consigue que el polvo generado en el proceso de borrado sea acumulado en el propio borrador manual (5) o en una zona externa al borrador manual (5) en lugar de pasar al ambiente. Despite being a dispensable element, the incorporation of a filter (7) ensures that the dust generated in the erase process is accumulated in the manual eraser (5) or in an area outside the manual eraser (5) instead of move into the environment
Por otro lado, la extracción del aire contaminado desde la sala hacia el plénum (2) del borrador manual (5) se puede realizar a través del elemento de borrado (13) que configuran la superficie porosa de borrado, según se representa en las figuras 10 y 12, o a través de tomas de extracción de aire (12) ubicadas perimetralmente al elemento de borrado (13), pero no coincidentes, según se representa en las figuras 13 y 14. En esta última configuración, el aire no requiere pasar por el elemento de borrado (13), evitando de este modo la pérdida de carga que esto puede suponer. Por otra parte, la aspiración se focaliza en el perímetro del elemento de borrado (13), que es la zona que recibe más polvo durante el borrado, por lo que se facilita la limpieza mediante la aspiración localizada cerca de esa zona más sucia. On the other hand, the removal of contaminated air from the room towards the plenum (2) of the manual eraser (5) can be done through the erasure element (13) that configure the porous surface of erasure, as shown in the figures 10 and 12, or through air extraction outlets (12) located perimeter to the erase element (13), but not coincident, as shown in Figures 13 and 14. In this last configuration, the air does not require passing through the deletion element (13), thus avoiding the loss of load that this may entail. On the other hand, the aspiration is focused on the perimeter of the erase element (13), which is the area that receives the most dust during the erase, so that cleaning is facilitated by aspiration located near that dirtiest area.
En una forma de realización alternativa, el borrador manual (5) también incorpora un canal interior de impulsión de aire (14) que comunica un impulsor, no representado en la figura, con el elemento de borrado (13), según se representa en la figura 14. De esta forma, por un lado el borrador manual (5) incorpora un canal interior de impulsión de aire (14) con uno de sus extremos dirigido hacia el elemento de borrado (13) del borrador manual (5) y en cuyo otro extremo se encuentra ubicado un impulsor de aire, no representado en las figuras, de modo que se pueda facilitar la limpieza del elemento de borrado (13) mediante la impulsión de aire hacia la superficie de borrado. Por otro lado, el borrador manual (5) también incorpora una toma de extracción de aire (12), ubicada periféricamente al elemento de borrado (13), de forma que el aire que sale del borrador manual (5) por los elementos de borrado (13), se vuelve a absorber por esta toma de extracción de aire (12) sin que salga del borrador manual (5) a la sala. Se debe notar que el caudal de extracción de aire es mayor que el de impulsión. En esta forma de realización se consigue una limpieza del elemento de borrado (13) que puede realizarse de un modo simultáneo al proceso de borrado o de un modo independiente. In an alternative embodiment, the manual eraser (5) also incorporates an internal air supply channel (14) that communicates an impeller, not shown in the figure, with the deletion element (13), as shown in the Figure 14. In this way, on the one hand the manual eraser (5) incorporates an internal air discharge channel (14) with one of its ends directed towards the erasing element (13) of the manual eraser (5) and in which another end is located an air impeller, not shown in the figures, of so that the cleaning of the erasing element (13) can be facilitated by the air flow to the erasing surface. On the other hand, the manual eraser (5) also incorporates an air extraction outlet (12), located peripherally to the erasing element (13), so that the air leaving the manual eraser (5) by the erasing elements (13), it is absorbed again by this air extraction outlet (12) without leaving the manual eraser (5) to the room. It should be noted that the air extraction flow rate is greater than the flow rate. In this embodiment, a cleaning of the erase element (13) is achieved, which can be carried out simultaneously with the erase process or in an independent way.
D) PUERTO DE LIMPIEZA (18) PARA EL BORRADOR MANUAL (5) DE LA PIZARRA (1). Otra forma de solucionar la extracción del aire contaminado durante el borrado de la pizarra (1) es mediante la incorporación en el sistema de un puerto de limpieza (18) para el borrador manual (5) de la pizarra (1). D) CLEANING PORT (18) FOR THE MANUAL DRAFT (5) OF THE BLACKBOARD (1). Another way to solve the removal of contaminated air during the erasure of the board (1) is by incorporating into the system a cleaning port (18) for the manual eraser (5) of the board (1).
De esta forma el borrador manual (5), impregnado de tiza o de polvo de rotulador, que se ha utilizado para la limpieza de una pizarra (1), se acopla en una superficie de apoyo (17) que incorpora huecos pasantes (16), por lo que se encuentra perforada, y está ubicada en la boca de entrada del puerto de limpieza (18). En el momento del acoplamiento, se activa la extracción de aire, lo que provoca que el aire de la sala donde se ubica la pizarra (1) entre al borrador manual (5) por la zona de alrededor del cuerpo del borrador (15) para atravesar el elemento de borrado (13) y salir para dirigirse hacia el plénum (2) del puerto de limpieza (18) y posteriormente hacia una boca de salida (3), provocando la limpieza del elemento de borrado (13). In this way the manual eraser (5), impregnated with chalk or marker dust, which has been used for cleaning a slate (1), is coupled to a support surface (17) that incorporates through holes (16) , so it is perforated, and is located at the entrance of the cleaning port (18). At the time of coupling, the extraction of air is activated, which causes the air in the room where the board is located (1) to enter the manual eraser (5) through the area around the body of the eraser (15) to cross the erase element (13) and exit to go to the plenum (2) of the cleaning port (18) and then to an exit mouth (3), causing the erase element to be cleaned (13).
La extracción de aire se produce porque el plénum (2) se encuentra en depresión con respecto a la sala donde se ubica la pizarra (1). Esta depresión se debida a que el conducto de extracción se encuentra conectado a un elemento en depresión o, preferiblemente, por la ubicación de un extractor (6) que se encuentra, bien en el interior del plénum (2) o bien fuera de él, en el conducto de extracción, de forma que se produzca la depresión requerida. En cualquiera de los dos casos, el puerto de limpieza (18) puede incorporar un filtro (7) junto al extractor (6), de forma que el aire que se devuelva a la sala o al medio ambiente, de forma general, esté limpio de impurezas. Air extraction occurs because the plenum (2) is in depression with respect to the room where the board is located (1). This depression is due to the fact that the extraction duct is connected to an element in depression or, preferably, by the location of an extractor (6) that is either inside the plenum (2) or outside it, in the extraction duct, so that the required depression occurs. In either case, the cleaning port (18) can incorporate a filter (7) next to the extractor (6), so that the air that is returned to the room or the environment, in general, is clean of impurities
Además, el conducto de extracción que une la boca de salida (3) con el puerto de limpieza (18) puede ser rígido o puede ser un conducto flexible (11), de forma que pueda ubicarse en la posición más idónea que le favorezca la depresión requerida. In addition, the extraction duct that connects the outlet (3) with the cleaning port (18) it can be rigid or it can be a flexible conduit (11), so that it can be located in the most suitable position that favors the required depression.
Con esta configuración se consigue una limpieza del borrador manual (5) sin emisión de polvo al ambiente, lo que es interesante, ya que el proceso de limpieza del borrador manual (5) por métodos tradicionales es uno de los que más polvo genera al ambiente y más molestias genera al usuario que lo realiza debido a la aspiración involuntaria de ese polvo. With this configuration a cleaning of the manual eraser (5) without dust emission to the environment is achieved, which is interesting, since the process of cleaning the manual eraser (5) by traditional methods is one of the ones that generates more dust to the environment and more inconvenience generates the user who performs it due to the involuntary aspiration of that dust.
De esta forma, el sistema de la invención puede presentar al menos uno de los dispositivos (1’, 5, 10, 18) de extracción de aire contaminado descritos. En el caso de presentar más de un dispositivo (1’, 5, 10, 18), las conexiones contemplarán el uso de un único extractor (6), con o sin filtro (7), para una forma eficiente no redundante del sistema. In this way, the system of the invention can have at least one of the described devices (1 ', 5, 10, 18) for removing contaminated air. In the case of presenting more than one device (1 ’, 5, 10, 18), the connections will contemplate the use of a single extractor (6), with or without filter (7), for an efficient non-redundant form of the system.
De forma genérica, la boca de salida (3) del conducto de extracción puede estar comunicada con la sala, retornando el aire, o con otro espacio que puede ser exterior. In general, the outlet (3) of the extraction duct can be connected to the room, returning the air, or another space that can be outside.
Además, en cualquiera de las formas de realización de los diferentes dispositivos (1’, 5, 10, 18) descritos para su incorporación en el sistema, el dispositivo (1’, 5, 10, 18) puede incorporar, aunque no han sido representados en las figuras, un interruptor, un temporizador o un sensor que puede ser de presencia, de contacto, de presión o de movimiento, de modo que el extractor de aire (6) se active por un método que puede ser manual o automático y activado eléctricamente mediante conexión a la red eléctrica o por baterías, ya sean recargables o de un solo uso. In addition, in any of the embodiments of the different devices (1 ', 5, 10, 18) described for incorporation into the system, the device (1', 5, 10, 18) may incorporate, although they have not been represented in the figures, a switch, a timer or a sensor that can be of presence, contact, pressure or movement, so that the air extractor (6) is activated by a method that can be manual or automatic and electrically activated by connection to the mains or by batteries, whether rechargeable or single use.
Por último, debe tenerse en cuenta que la presente invención no debe verse limitada a la forma de realización aquí descrita. Otras configuraciones pueden ser realizadas por los expertos en la materia a la vista de la presente descripción. En consecuencia, el ámbito de la invención queda definido por las siguientes reivindicaciones. Finally, it should be noted that the present invention should not be limited to the embodiment described herein. Other configurations can be made by those skilled in the art in view of the present description. Accordingly, the scope of the invention is defined by the following claims.

Claims

REIVINDICACIONES
1.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1) mediante extracción localizada del aire contaminado caracterizado por que comprende al menos uno de los siguientes dispositivos: 1.- System of improvement of the quality of the air in the surroundings of a slate (1) by means of localized extraction of the polluted air characterized by that it comprises at least one of the following devices:
- Una pizarra perforada (1’) que comprende una superficie con orificios (8),  - A perforated slate (1 ’) comprising a surface with holes (8),
- Un listón (10) de borrado que comprende un elemento de fijación (4) en cada uno de los extremos para el deslizamiento por sendas guías (9) a lo largo de la pizarra (1), unos elementos de borrado (13) en contacto con la pizarra (1) para llevar a cabo el borrado y una toma de aire (12),  - An erasing strip (10) comprising a fixing element (4) at each of the ends for sliding along paths (9) along the board (1), erasing elements (13) in contact with the board (1) to carry out the erasure and an air intake (12),
- Un borrador manual (5) que comprende un cuerpo (15) y una superficie de borrado con elementos de borrado (16) y una toma de aire (12),  - A manual eraser (5) comprising a body (15) and an erasing surface with erasing elements (16) and an air intake (12),
- Un puerto de limpieza (18) para el borrador manual (5) que comprende una superficie de apoyo (17) perforada con huecos pasantes (16) para el depósito del borrador manual (5),  - A cleaning port (18) for the manual eraser (5) comprising a support surface (17) perforated with through holes (16) for the deposit of the manual eraser (5),
donde: where:
- cada uno de los dispositivos (1’, 5, 10, 18) comprende un plénum (2) de extracción que comunica la sala donde se encuentra la pizarra (1) con una boca de salida (3) para la extracción del aire mediante un conducto de extracción, de forma que el plénum (2) se encuentra en depresión con respecto a la sala,  - each of the devices (1 ', 5, 10, 18) comprises an extraction plenum (2) that communicates the room where the board is (1) with an outlet (3) for the extraction of air by an extraction duct, so that the plenum (2) is in depression with respect to the room,
de forma que: so that:
- la comunicación del plénum (2) con la sala es a través de los orificios (8) en la pizarra perforada (1’), a través de la toma de aire (12) en el listón (10) y en el borrador manual (5) y a través de los huecos pasantes (16) en el puerto de limpieza (18).  - the communication of the plenum (2) with the room is through the holes (8) on the perforated board (1 '), through the air intake (12) on the strip (10) and in the manual eraser (5) and through the through holes (16) in the cleaning port (18).
2.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 1 , caracterizado por que al menos uno de los dispositivos (1’, 5, 10, 18) comprende un elemento a seleccionar entre un extractor (6) para la extracción del aire desde la sala hacia la boca de salida (3) del conducto de extracción, un filtro (7) para la devolución del aire contaminado ya filtrado a un espacio a seleccionar entre el exterior, la sala y otro espacio, y ambos. 2. Air quality improvement system in the environment of a slate (1), according to claim 1, characterized in that at least one of the devices (1 ', 5, 10, 18) comprises an element to be selected between a extractor (6) for the extraction of air from the room to the outlet (3) of the extraction duct, a filter (7) for the return of contaminated air already filtered to a space to be selected from outside, the room and other space, and both.
3.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 2, caracterizado por que tanto el extractor (6) como el filtro (6) están ubicados en una posición a seleccionar entre dentro del plénum (2) y en el conducto de extracción aguas arriba de la boca de salida (3). 3. Air quality improvement system in the environment of a slate (1), according to claim 2, characterized in that both the extractor (6) and the filter (6) are located in a position to be selected from within of the plenum (2) and in the conduit of extraction upstream from the outlet (3).
4.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 2, caracterizado por que al menos uno de los dispositivos (1’, 5, 10, 18) comprende un elemento a seleccionar entre un interruptor, un temporizador y un sensor para la activación del extractor de aire (6). 4. Air quality improvement system in the environment of a slate (1), according to claim 2, characterized in that at least one of the devices (1 ', 5, 10, 18) comprises an element to be selected between a switch, a timer and a sensor for the activation of the air extractor (6).
5.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 4, caracterizado por que el sensor es a seleccionar entre presencial, de contacto, de presión y de movimiento. 5. Air quality improvement system in the environment of a slate (1), according to claim 4, characterized in that the sensor is to be selected between face-to-face, contact, pressure and movement.
6.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 4, caracterizado por que la activación del extractor de aire (6) se realiza por medios eléctricos a seleccionar entre una conexión eléctrica a una toma de red y una batería. 6. Air quality improvement system in the environment of a slate (1), according to claim 4, characterized in that the activation of the air extractor (6) is carried out by electrical means to be selected from an electrical connection to a power outlet and a battery.
7.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 6, caracterizado por que la batería es a seleccionar entre recargable y de un solo uso. 7. Air quality improvement system in the environment of a slate (1), according to claim 6, characterized in that the battery is to be selected between rechargeable and single use.
8.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 1 , caracterizado por que el conducto de extracción que comunica la boca de salida (3) con el plénum (2) en un dispositivo a seleccionar entre el listón (10) y el borrador manual (5) es a seleccionar entre rígido y flexible. 8. Air quality improvement system in the environment of a slate (1), according to claim 1, characterized in that the extraction duct that communicates the outlet (3) with the plenum (2) in a Device to be selected between the slat (10) and the manual eraser (5) is to be selected between rigid and flexible.
9.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 1 , caracterizado por que el listón (10) comprende una pluralidad de tomas de aire (12) y de elementos de borrado (13). 9. Air quality improvement system in the environment of a slate (1), according to claim 1, characterized in that the strip (10) comprises a plurality of air intakes (12) and erasure elements ( 13).
10.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 9, caracterizado por que las posiciones de las tomas de aire (12) alternan con las posiciones de los elementos de borrado (13). 10. Air quality improvement system in the environment of a slate (1), according to claim 9, characterized in that the positions of the air intakes (12) alternate with the positions of the erasure elements (13 ).
11.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 9, caracterizado por que las posiciones de las tomas de aire (12) coinciden con las posiciones de los elementos de borrado (13), de forma que el aire entra al plénum (2) pasando por los elementos de borrado (13), provocando la limpieza de los elementos de borrado (13). 11. Air quality improvement system in the environment of a slate (1), according to claim 9, characterized in that the positions of the air intakes (12) coincide with the positions of the erase elements (13), so that the air enters the plenum (2) passing through the erase elements (13), causing the cleaning of the erase elements (13).
12.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 9, caracterizado por que el listón (10) comprende un canal interior de impulsión de aire (14) que comunica los elementos de borrado (13) con un impulsor de aire. 12. System for improving the quality of air in the environment of a slate (1), according to claim 9, characterized in that the slat (10) comprises an internal air supply channel (14) that communicates the elements of erased (13) with an air impeller.
13.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 9, caracterizado por que el listón (10) es a seleccionar entre horizontal y vertical y las guías (9) por las que se desplaza son, respectivamente, verticales y horizontales y se ubican externamente a la pizarra (1). 13. Air quality improvement system in the environment of a slate (1), according to claim 9, characterized in that the slat (10) is to be selected between horizontal and vertical and the guides (9) by which Scrolls are, respectively, vertical and horizontal and are located externally to the board (1).
14.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 1 , caracterizado por que el borrador manual (5) comprende un elemento de borrado (13) que abarca toda la toma de aire (12). 14. Air quality improvement system in the environment of a slate (1), according to claim 1, characterized in that the manual eraser (5) comprises an erasure element (13) that covers the entire air intake (12).
15.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 1 , caracterizado por que el borrador manual (5) comprende una toma de aire (12) periférica al elemento de borrado (13). 15. Air quality improvement system in the environment of a slate (1), according to claim 1, characterized in that the manual eraser (5) comprises an air intake (12) peripheral to the deletion element (13 ).
16.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 14 o 15, caracterizado por que el borrador manual (5) comprende un canal interior de impulsión de aire (14) que comunica el elemento de borrado (13) con un impulsor de aire. 16. Air quality improvement system in the environment of a slate (1), according to claim 14 or 15, characterized in that the manual eraser (5) comprises an internal air supply channel (14) that communicates the erase element (13) with an air impeller.
17.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 1 , caracterizado por que el puerto de limpieza (18) comprende un extractor (6). 17. Air quality improvement system in the environment of a slate (1), according to claim 1, characterized in that the cleaning port (18) comprises an extractor (6).
18.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según la reivindicación 1 o 17, caracterizado por que el puerto de limpieza (18) comprende un filtro (7) en el canal de extracción. 18. Air quality improvement system in the environment of a slate (1), according to claim 1 or 17, characterized in that the cleaning port (18) comprises a filter (7) in the extraction channel.
19.- Sistema de mejora de la calidad del aire en el entorno de una pizarra (1), según las reivindicaciones 17 o 18, caracterizado por que el puerto de limpieza (18) está configurado para activar el extractor (6) al detectar el depósito del borrador manual (5) sobre la superficie de apoyo (17). 19.- Air quality improvement system in the environment of a slate (1), according to the claims 17 or 18, characterized in that the cleaning port (18) is configured to activate the extractor (6) upon detecting the deposit of the manual eraser (5) on the support surface (17).
PCT/ES2019/070316 2018-06-01 2019-05-14 System for improving air quality around a blackboard via localised extraction of contaminated air WO2019229279A1 (en)

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ESP201830530 2018-06-01
ES201830530A ES2738403A1 (en) 2018-06-01 2018-06-01 AIR QUALITY IMPROVEMENT SYSTEM IN THE BLACKBOARD ENVIRONMENT BY LOCALIZED EXTRACTION OF CONTAMINATED AIR (Machine-translation by Google Translate, not legally binding)

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