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WO2024170805A1 - Fall protection device - Google Patents

Fall protection device Download PDF

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Publication number
WO2024170805A1
WO2024170805A1 PCT/ES2023/070736 ES2023070736W WO2024170805A1 WO 2024170805 A1 WO2024170805 A1 WO 2024170805A1 ES 2023070736 W ES2023070736 W ES 2023070736W WO 2024170805 A1 WO2024170805 A1 WO 2024170805A1
Authority
WO
WIPO (PCT)
Prior art keywords
protection device
rope
fall protection
section
sheet
Prior art date
Application number
PCT/ES2023/070736
Other languages
Spanish (es)
French (fr)
Inventor
Alberto Cabeza Delgado
Original Assignee
Alberto Cabeza Delgado
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 Alberto Cabeza Delgado filed Critical Alberto Cabeza Delgado
Publication of WO2024170805A1 publication Critical patent/WO2024170805A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/02—Devices for lowering persons from buildings or the like by making use of rescue cages, bags, or the like
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/22—Devices for lowering persons from buildings or the like by making use of jumping devices, e.g. jumping-sheets, jumping-mattresses
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings

Definitions

  • This application relates to a fall protection device, applicable when work is carried out at specific points on the façade and especially in the case of possible suicide attempts.
  • Background of the invention The use of inflatable mattresses that are placed on the ground beneath potential suicides is known in the state of the art, so that they stop their fall without causing them too much damage.
  • a major problem with this tool is its size, which sometimes prevents its installation due to the presence of street furniture, trees, vehicles... or because they are small interior patios, sometimes with narrow stairs to access them or due to other inconveniences.
  • There are mattress models for different fall heights up to 60 metres, equivalent to a 20th floor), so they have to absorb the energy accumulated over that entire height.
  • the person may hit various objects (air conditioning units, awnings, balustrades, etc.) on the path that he or she would describe, which could deviate him or cause him or her damage. It is not surprising that there are buildings that are taller than 20 floors. It is preferable to be able to stop the person who falls at an intermediate point, before he or she gains too much speed so that it is possible to pick him or her up without damage.
  • the applicant has been granted the utility model with application number U202230840, publication number ES1292254, issue date 09/12/2022 and application filing date 05/20/2022. This model solves many of the problems that the prior art did not address.
  • the applicant aware of the needs of: 1.- adaptation to the façade of the opening where it is installed, 2.- lightness of the device and 3.- immediacy in its use for cases of attempted
  • the aim of the invention is to use the utility model cited to achieve an almost instant deployment system that adapts to different façade orographies (air conditioning units, pipes, distance from the perpendicular side wall, etc.) and that can be carried by a single person in a backpack.
  • façade orographies air conditioning units, pipes, distance from the perpendicular side wall, etc.
  • This is a time-dependent intervention in which a few seconds can be the difference between success and failure, having a system that is light enough to be carried by a single person (either in an elevator or by stairs if there is no elevator) is of vital importance, as is the capacity for immediate deployment that is achieved when the entire device is pre-assembled and folded.
  • the applicant is not aware of any device similar to the invention.
  • the invention consists of an anti-fall safety device according to the first claim and whose variants solve the problems of the state of the art.
  • This device is designed for use by 2 firefighters or people trained in its use.
  • This device is used in elevated structures, one or more floors below the suicidal person, as long as it is at a sufficient height so that it does not hit the ground when it is in operation. It comprises a support, a flexible sheet and a strong anchor.
  • the most preferred solution is that the sheet support is 2 "Z" shaped poles, independent of each other, arranged symmetrically one on each side of the sheet. Each pole is handled by one person.
  • Each "Z" shaped pole consists of 3 sections (handle section, intermediate section and support section), preferably telescopic and collapsible between themselves (to reduce the size and facilitate their transport and storage), with a mechanism to fix the sections forming a 90° angle with the adjacent section or even any other angle.
  • the first section, with handle functions, hereinafter “handle section” will end in a "T" shape on the side opposite the 90° angle, which will serve to counteract the force or moment of rotation generated by the weight of the device once deployed.
  • the two poles can be joined in a "Z" shape by means of a telescopic bar that is inserted into the "Ti" end of both “Z” poles, and another bar A telescopic pole connecting an intermediate point of the two handle sections to maintain distance, so that the possibility of the device being held by a single person is facilitated, freeing the other for different tasks.
  • the section of the "Z" pole opposite the handle section will be the one that supports the weight of the sheet, hereinafter “support section” and will be attached to the side of the sheet by means of frangible rings (closed with Velcro, snaps, breakable ties...) whose function is to release the sheet from the "Z" poles at the moment that the victim falls on the sheet.
  • frangible rings must be able to slide freely along said support section except for the frangible ring closest to the intermediate section of the "Z" pole, which will be immobile to prevent the flexible sheet from separating from the façade and creating a gap.
  • These frangible rings can be of several stages, since it is common for people attempting suicide to throw objects (for example shoes) before jumping into the void, which could trigger the release of the support sheet, leaving the victim unprotected.
  • the support section will end with a stop that prevents the frangible rings that connect to the flexible sheet from coming off.
  • the support section will preferably be telescopic by gravity (depending on the inclination of the support section, it will extend or retract, thus achieving an almost instantaneous positioning of the device) and have sufficient strength to hold the flexible sheet, but if it receives the direct impact of a body in free fall, it must break away without detaching from the "Z" pole to avoid becoming an object in free fall.
  • the rest of the sections must be telescopic and lockable to a certain measurement, that is, once its length is selected, it will be fixed and remain invariable.
  • the flexible sheet has a rope, strap or cable (hereinafter always "rope”) forming a ring around its contour that passes through both sides of the flexible sheet alternately.
  • This rope is free to move and is configured so that when the rope is pulled, for example when the flexible sheet picks up a body in free fall, the sheet slides along the rope leaving the body enclosed in the sheet and the whole hanging from the rope.
  • a point of the rope ring can also be fixed to the flexible sheet, for example in the area closest to the gap in the structure where it is installed and the rope anchored to the resistant structure. Preferably in double, so that it would travel less distance in detecting the body.
  • the rope can be fixed to a hook-shaped anchor that goes to a point of the resistant structure (for example embracing the entire window sill).
  • the connection between the rope and the anchor is through an energy dissipating device such as a shock absorber or an energy absorber.
  • the hook-shaped anchor can in turn be reassured by a rope to a resistant element.
  • the flexible sheet usually made of canvas or netting, can be concave in shape, preferably deeper at the end furthest from the anchor, and with sufficient strength so that it does not break when a person falls or when it rubs against sharp or cutting objects. It can also be padded.
  • the anchor will preferably be hook-shaped with a width sufficient to fit a conventional window sill into its groove. In this way, the time spent on its placement is minimal. It will have an anchor, preferably elongated, to anchor the sheet rope using a connector and an intermediate energy absorber or shock absorber.
  • it can have another anchor to connect a cord that reaches the ground, which once tied to a fixed point a few meters from the façade (for example a tree or a lamppost) performs a double function: a) prevent the hook-shaped anchor from being released from the fixed point (windowsill) and b) serve as a guide in the path of the sheet once it has picked up the body in free fall and slightly separates it from the façade, avoiding impact with the façade due to the pendulum effect. To do this, some point of the sheet must be attached to the cord by means of a connector that slides freely along said cord.
  • Figure 1 Schematic exploded view of an exemplary embodiment.
  • Figure 2 Simplified side section of an example of a device coupled to a window recess.
  • Figure 3 A third exemplary embodiment, in perspective. Preferred embodiment of the invention.
  • Figure 1 shows an example of an embodiment consisting of a support, in this case formed by two "Z" poles (1).
  • the preferred pole consists of three telescopic sections that can be folded together for better transport and storage: support section (1.1), intermediate section (1.2) and handle section (1.3). At the points where one section of the "Z" pole joins another, there will be a mechanism to secure the sections forming an angle of 900 with the adjacent section or even any other angle.
  • the support section (1.1) will preferably be telescopic by gravity, that is, depending on the inclination of said section, it will be deployed or retracted, thus achieving an almost instantaneous deployment of the device. Additionally, it has a series of frangible rings (2) whose function is to releasably join the flexible sheet (4) with the support section (1.1).
  • frangible rings (2) can be closed by means of a Velcro fastener, brackets, breakable flanges or any other system that fulfills this function.
  • these frangible rings (2) must be joined to a specific point on the side of the flexible sheet (4), but they must be able to slide freely along the support section (1.1) of the "Z" pole (1), with the only exception of the frangible ring (2.1) closest to the intermediate section (1.2) of the "Z” pole, which will remain fixed to prevent the flexible sheet (4) from sliding to the end of the support section (1.1) generating a gap.
  • the support section (1.1) will have a stop (8) at its end to prevent the frangible rings (2) from coming out of the support section (1.1).
  • the handle section (1.3) will preferably end in a "T" shape (1.4) to manually counteract the force or moment of rotation caused by the weight of the device once deployed.
  • Both the intermediate section (1.2) and the handle section (1.3) must be telescopic and lockable to a certain measurement, that is, once its length is selected, it will be fixed and remain invariable.
  • the two "Z" poles (1) can be joined by means of a telescopic bar (5) that is inserted into the "T" end (1.4) of both poles and another telescopic bar (5.1) that connects an intermediate point of the two handle sections, keeping their separation constant, (1.3) so that the device is connected to the support section (1.1).
  • a piece of tape (9) or rope can be hung with the sole function of being stepped on by the person handling the "Z" pole to transfer the weight of the device to the foot and free a hand.
  • a flexible sheet (4) that can be substantially flat, but preferably has a concave shape, generally formed by a canvas or net, sufficiently strong so that it does not break when the person falls or by friction with sharp elements.
  • the flexible sheet (4) has a rope (3), strap or cable around its edge that passes through holes, passages in the net or mesh, eyelets... so that it passes through both sides of the flexible sheet (4) alternately.
  • the rope (3) can slide freely along the contour of the flexible sheet (4), so that when picking up a body in free fall, the sheet (4) slides along the rope (3) and is strangled by it at its upper part.
  • the flexible sheet (4) can be concave in shape, preferably with greater depth at the end furthest from the anchor. Additionally, it can be padded.
  • the rope (3) must be fixed to a resistant point that will support the impact force in stopping the fall, but this connection will be through an energy absorbing element (6) by cushioning or breaking seams, in order to protect the person picked up in the device.
  • the preferred resistant point will be the sill of a window or balcony railing.
  • an anchor will be used that will preferably be in the form of a hook (7) with a width sufficient for its throat to embrace the sill of a conventional window. It will have a ring (7.1), preferably elongated, to anchor, by means of a connector and an energy absorber (6) or intermediate shock absorber, the rope (3) of the flexible sheet (4).
  • connection point (7.5) of a cord (7.2) that reaches the ground and performs a double function once tied to a fixed point separated by a few meters from the facade (for example a tree): a) prevent the hook-shaped anchor (7) from being released from the fixed point (window sill) and b) serve as a guide in the path of the sheet once it has picked up the body in free fall and slightly separates it from the facade, avoiding the impact of the victim with the facade due to the pendulum effect.
  • some point of the sheet (4) must be connected to the cord (7.2) by means of a connector (7.3) that slides The device can be freely moved along the length of the cord (7.2).
  • the hook-shaped anchor (7) can have another strong ring (7.4) to re-secure the anchor to another strong element inside the building by means of a rope (for example, the railing of the stairwell).
  • a rope for example, the railing of the stairwell.
  • the device is placed at the point to be protected, one or more floors below the possible suicide or risk situation. As it is handled folded, pre-assembled and the assembly is transported in a bag for this purpose, it is easy to handle and pass through doors or windows. Once in place, two trained people set both the angle between the sections of the "Z" pole (1) and its correct length depending on the characteristics of the area to be protected and by gravity they deploy the support section (1.1) and the flexible sheet (4) almost instantly while placing the hook (7) on the windowsill or strong railing.
  • the two poles can be joined in a "Z" shape (1) by means of a telescopic bar (5) that is inserted into the "T" end (1.4) of both poles and another telescopic bar (5.1) that connects two intermediate points of both sections-handles and keeps them at a constant distance, so that the possibility of the device being held by a single person is facilitated, leaving the other available for different tasks. If a person falls, he or she is picked up by the sheet (4) and pushed downwards.
  • the device installed at a height, far from the ground but close to the person, means that the victim has not reached too much speed and the protection is more effective than with inflatable mattresses deployed on the ground.
  • the height of the building there is no limitation as to the height of the building.
  • the use of this tool is conceived in the context of a firefighter intervention: the firefighters install it.
  • the firefighters can lower the device with other tools from the which they already have or even lowered down the façade to the victim to proceed with the rescue.
  • the sheet (4) is prism-shaped, but with non-parallel bases. The lower base would be oblique, with the highest part at the end opposite the hook-shaped anchor (7) (figure 1). This allows the person to be picked up more quickly and to reduce the distance needed to stop.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Emergency Lowering Means (AREA)
  • Details Of Aerials (AREA)
  • Crushing And Grinding (AREA)

Abstract

The invention relates to a fall protection device, which can be deployed on an elevated structure, comprising a support (1) made of a flexible sheet (4) having a ring of rope (3) along its contour and passing through both sides of the flexible sheet (4) in an alternating manner, with freedom of movement and configured such that, with the relative movement between the sheet (4) and the rope (3), the sheet (4) is collected in a cinched manner in its upper part by the rope (3), while the rope (3) can be secured to a fixed point of the structure, while said support (1) is formed of two Z-shaped poles that are positioned facing one another symmetrically and with variable separation, with each of the Z-shaped poles (1) having 3 sections: support section (1.1), intermediate section (1.2) and handle section (1.3), formed in the same plane, connected to one another in an articulated manner and having mechanisms to fix adjacent sections at 90º and also at any other angle.

Description

DISPOSITIVO DE PROTECCIÓN ANTICAÍDAS Descripción Sector de la técnica La presente solicitud se refiere a un dispositivo de seguridad anticaídas, aplicable cuando se hacen trabajos en puntos concretos de la fachada y especialmente en el caso de posibles intentos de suicidio. Antecedentes de la invención Se conoce en el estado de la técnica el uso de colchones hinchables que se sitúan en el suelo debajo de posibles suicidas, de forma que detienen su caída sin que sufran demasiados daños. Un problema importante de esta herramienta es su tamaño que, en ocasiones, impide su instalación por la presencia de mobiliario urbano, árboles, vehículos... o por tratarse de patios interiores pequeños, a veces con escaleras angostas para acceder a ellos o por otros inconvenientes. Existen modelos de colchones para distintas alturas de caída (hasta de 60 metros, equivalente a una 20a planta) , por lo que tienen que absorber la energía acumulada en toda esa altura. Además, en la trayectoria que describiría la persona, ésta puede golpearse con distintos objetos (máquinas de aire acondicionado, toldos, balaustradas, etc.) lo que puede desviarla o producirle daños. No por obvio hay que dejar de mencionar que hay edificios con mayor altura que 20 plantas. Es preferible poder detener a la persona que cae en un punto intermedio, antes de que coja demasiada velocidad para que sea posible recogerle sin daños. El solicitante tiene concedido el modelo de utilidad con n° de solicitud U202230840, n° de publicación ES1292254, fecha de expedición 12/09/2022 y fecha de presentación de la solicitud 20/05/2022. En dicho modelo se solucionan buena parte de los problemas que el estado de la técnica anterior no abordaba. El solicitante, conocedor de las necesidades de: 1.- adaptación a la fachada del hueco donde se instale, 2.- de ligereza del dispositivo y 3.- de inmediatez en su uso para los casos de intento de suicidio, pretende, partiendo del modelo de utilidad citado, conseguir un sistema de despliegue casi instantáneo, que se adapte a distintas orografías de la fachada (aparatos de aire acondicionado, tuberías, distancia a la pared perpendicular lateral...) y que pueda ser transportado por una sola persona en una mochila. Al tratarse de una intervención tiempodependiente en la que unos pocos segundos pueden ser la diferencia entre el éxito y el fracaso, disponer de un sistema tan ligero como para poder transportarlo una sola persona (tanto en un ascensor como por unas escaleras en caso de carecer de ascensor) es de vital importancia, así como la capacidad de despliegue inmediato que se consigue al estar todo el dispositivo premontado y plegado. El solicitante no conoce ningún dispositivo similar a la invención. Explicación de la invención La invención consiste en un dispositivo de seguridad anticaídas según la reivindicación primera y cuyas variantes resuelven los problemas del estado de la técnica. En un contexto de emergencia, está concebida para su uso por 2 bomberos o personas entrenados en su utilización. Este dispositivo se aplica en estructuras elevadas, una o varias plantas por debajo de la persona con idea suicida, siempre que quede a una altura suficiente para que no incida contra el suelo en su funcionamiento. Comprende un soporte, una lámina flexible y un anclaje resistente. La solución más preferida hace que el soporte de la lámina sean 2 pértigas en forma de "Z", independientes entre sí, dispuestas de forma simétrica una a cada lado de la lámina. Cada pértiga es manejada por una persona. Cada pértiga en "Z" consta de 3 tramos (tramo-mango, tramo intermedio y tramo-soporte) , preferiblemente telescópicos y plegables entre si (para reducir el tamaño y facilitar su transporte y guardado) , con mecanismo para fijar los tramos formando un ángulo de 90° con el tramo contiguo o incluso cualquier otra angulación. El primer tramo, con funciones de mango, en adelante "tramo-mango" acabará en forma de "T" en el lado opuesto al ángulo 90°, que servirá para contrarrestar la fuerza o momento de rotación generada por el peso del dispositivo una vez desplegado. Adicionalmente y una vez desplegado el dispositivo, se podrán unir las dos pértigas en "Z" mediante una barra telescópica que se inserte en la terminación en "Ti de ambas pértigas en "Z", y otra barra telescópica que conecte un punto intermedio de los dos tramos-mangos para mantener la distancia, de modo que se facilite la posibilidad de que el dispositivo sea sujetado por una única persona, liberando a la otra para tareas diversas. El tramo de la pértiga en "Z" opuesto al tramo-mango será el que soporte el peso de la lámina, en adelante "tramo-soporte" y estará unido al lateral de la lámina mediante anillos frangibles (cerrados con velcro, corchetes, bridas rompibles...) cuya función es liberar la lámina de las pértigas en "Z" en el momento que la víctima caiga sobre la lámina. Dichos anillos frangibles deben poder deslizar libremente por dicho tramo-soporte a excepción del anillo frangible más próximo al tramo intermedio de la pértiga en "Z" que será inmóvil para evitar que la lámina flexible se separe de la fachada y se genere un hueco. Estos anillos frangibles pueden ser de varias etapas ya que es habitual que las personas en tentativa de suicidio, antes de lanzarse al vacío, arrojen objetos (por ejemplo los zapatos) que podrían desencadenar la liberación de la lámina del soporte quedando la víctima desprotegida. El tramo-soporte terminará con un tope que impida salirse a los anillos frangibles de unión con la lámina flexible. El tramo-soporte preferiblemente será telescópico por gravedad (dependiendo de la inclinación del tramo-soporte se extenderá o se recogerá consiguiendo así un emplazamiento casi instantáneo del dispositivo) y tener suficiente resistencia para sujetar la lámina flexible, pero si recibe el impacto directo de un cuerpo en caída libre debe partir sin desprenderse de la pértiga en "Z" para evitar convertirse en un objeto en caída libre. El resto de tramos deben ser telescópicos enclavables a una medida determinada, es decir, una vez seleccionada su longitud, quedar fija y permanecer invariable. La lámina flexible tiene una cuerda, correa o cable (en adelante siempre "cuerda") formando un anillo por su contorno que pasa por ambas caras de la lámina flexible de forma alterna. Esta cuerda tiene libertad de desplazamiento y está configurada para que al tirar de la cuerda, por ejemplo cuando la lámina flexible recoja un cuerpo en caída libre, la lámina deslice por la cuerda quedando el cuerpo encerrado en la lámina y el conjunto pendiendo de la cuerda. Alternativamente, también se puede fijar un punto del anillo de cuerda a la lámina flexible, por ejemplo en la zona más próxima al hueco de la estructura donde esté instalado y anclar la cuerda a la estructura resistente. Preferiblemente en doble, de modo que recorrería menos distancia en la detección del cuerpo. La cuerda es fijable a un anclaje en forma de gancho que va a un punto de la estructura resistente (por ejemplo abrazando todo el alfeizar de la ventana) . La unión entre la cuerda y el anclaje es a través de un dispositivo disipador de energía como un amortiguador o un absorbedor de energía. El anclaje en forma de gancho puede ir a su vez reasegurado mediante una cuerda a un elemento resistente del interior del edificio (por ejemplo a una barandilla del tiro de escalera) . La lámina flexible, generalmente formada por una lona o red, puede tener forma cóncava, preferiblemente de mayor profundidad en el extremo más alejado del anclaje, y con una resistencia suficiente para que no se rompa con la caída de la persona o por rozamiento con elementos punzantes o cortantes. Adicionalmente puede ser acolchada. El anclaje tendrá preferiblemente forma de gancho con una anchura suficiente para que en su garganta quepa el alfeizar de una ventana convencional. De esta manera el tiempo empleado en su colocación es mínimo. Contará con un anclaje, preferiblemente con forma alargada, para anclar, mediante un conector y un absorbedor de energía o amortiguador intermedio, la cuerda de la lámina. Adicionalmente puede llevar otro anclaje para vincular un cordino que llegue al suelo, que una vez atado a un punto fijo separado unos metros de la fachada (por ejemplo un árbol o una farola) cumple una doble función: a) impedir que el anclaje con forma de gancho se libere del punto fijo (alfeizar) y b) servir de gula en el recorrido de la lámina una vez haya recogido el cuerpo en caída libre y lo separe ligeramente de la fachada evitando el impacto con la fachada por efecto péndulo. Para ello debe ir unido algún punto de la lámina al cordino mediante un conector que deslice libremente a lo largo de dicho cordino. Adicionalmente el anclaje con forma de gancho puede llevar en su zona superior un anillo resistente para reasegurar el anclaje a otro elemento resistente del interior del edificio mediante una cuerda (por ejemplo la barandilla del tiro de escalera) .
Figure imgf000006_0001
Para una mejor comprensión de la invención, se incluyen las siguientes figuras. Figura 1: Vista explosionada esquemática de un ejemplo de realización. Figura 2: Sección lateral simplificada de un ejemplo de dispositivo acoplado a un hueco de ventana. Figura 3: Un tercer ejemplo de realización, en perspectiva. Realización preferente de la invención A continuación, se pasa a describir de manera breve un modo de realización de la invención, como ejemplo ilustrativo y no limitativo de ésta. En la figura 1 se aprecia un ejemplo de realización formado por un soporte, en este caso formado por dos pértigas en "Z" (1) . La pértiga preferida consta de tres tramos telescópicos y plegables entre sí para un mejor transporte y guardado: tramo-soporte (1.1) , tramo intermedio (1.2) y tramo-mango (1.3) . En los puntos de unión de un tramo con otro de la pértiga en "Z", habrá mecanismo para fijar los tramos formando un ángulo de 900 con el tramo contiguo o incluso cualquier otra angulación. El tramo- soporte (1.1) será preferiblemente telescópico por gravedad, es decir en función de la inclinación de dicho tramo, se desplegará o se recogerá, de este modo se consigue un despliegue del dispositivo casi instantáneo. Adicionalmente lleva una serie de anillos frangibles (2) cuya función es unir de forma liberable la lámina flexible (4) con el tramo- soporte (1.1) . Estos anillos frangibles (2) pueden estar cerrados mediante velero, corchetes, bridas rompibles o cualquier otro sistema que cumpla esta función. Además estos anillos frangibles (2) deben estar unidos a un punto concreto del lateral de la lámina flexible (4) , pero deben poder deslizar libremente a lo largo del tramo-soporte (1.1) de la pértiga en "Z" (1) , con la única excepción del anillo frangible (2.1) más próximo al tramo intermedio (1.2) de la pértiga en "Z", que quedará fijo para evitar que la lámina flexible (4) se deslice hasta el final del tramo-soporte (1.1) generando un hueco. Adicionalmente, el tramo-soporte (1.1) contará en su extremo con un tope (8) para evitar que los anillos frangibles (2) salgan del tramo-soporte (1.1) . El tramo-mango (1.3) preferiblemente terminará en forma de "T" (1.4) para contrarrestar manualmente la fuerza o momento de rotación que provoca el peso del dispositivo una vez desplegado. Tanto el tramo intermedio (1.2) como el tramo-mango (1.3) , deben ser telescópicos enclavables a una medida determinada, es decir, una vez seleccionada su longitud, quedar fija y permanecer invariable. Adicionalmente y una vez desplegado el dispositivo, se podrán unir las dos pértigas "Z" (1) mediante una barra telescópica (5) que se inserte en la terminación en "T" (1.4) de ambas pértigas y otra barra telescópica (5.1) que conecte un punto intermedio de los dos tramos-mangos manteniendo constante su separación, (1.3) de modo que se facilite la posibilidad de que el dispositivo sea sujetado por una única persona, liberando a la otra para tareas diversas. Para ayudar en el montaje de la barra telescópica (5) , próximo a la unión del tramo-mango (1.3) con la terminación en T (1.4) puede colgar un trozo de cinta (9) o cuerda con la única función de al ser pisada por la persona que maneja la pértiga en "Z" transferir el peso del dispositivo al pie y liberar una mano. Entre los tramos- soporte (1.1) de las pértigas en "Z" se dispone una lámina (4) flexible que puede ser sustancialmente plana, pero preferiblemente tiene forma cóncava, generalmente formada por una lona o red, suficientemente resistente para que no se rompa con la caída de la persona o por rozamiento con elementos cortantes. La lámina (4) flexible tiene en su contorno una cuerda (3) , correa o cable que atraviesa orificios, pasos de la red o malla, ojales... de forma que pasa por ambas caras de la lámina (4) flexible de forma alterna. La cuerda (3) tiene libertad de deslizamiento por el contorno de la lámina flexible (4) , de forma que al recoger un cuerpo en caída libre, la lámina (4) se desliza por la cuerda (3) y queda estrangulada por ella en su parte superior. La lámina (4) flexible puede tener forma cóncava, preferiblemente de mayor profundidad en el extremo más alejado del anclaje. Adicionalmente puede ser acolchada. Por otro lado, la cuerda (3) debe fijarse a punto resistente que será el que soporte la fuerza de choque en la detención de la caída, pero esta unión será a través de elemento absorbedor de energía (6) por amortiguación o rotura de costuras, para de este modo proteger a la persona recogida en el dispositivo. El punto resistente preferido será el alfeizar de una ventana o barandilla de un balcón. Para la unión de la cuerda (3) con el punto resistente se utilizará un anclaje que tendrá preferiblemente forma de gancho (7) con una anchura suficiente para que su garganta abrace el alfeizar de una ventana convencional. Contará con una argolla (7.1) preferiblemente de forma alargada, para anclar, mediante un conector y un absorbedor de energía (6) o amortiguador intermedio, la cuerda (3) de la lámina (4) flexible. Adicionalmente puede llevar punto de conexión (7.5) de un cordino (7.2) que llegue al suelo y cumpla una doble función una vez atado a un punto fijo separado unos metros de la fachada (por ejemplo un árbol) : a) impedir que el anclaje con forma de gancho (7) se libere del punto fijo (alfeizar) y b) servir de guía en el recorrido de la lámina una vez haya recogido el cuerpo en caída libre y lo separe ligeramente de la fachada evitando el impacto de la víctima con la fachada por efecto péndulo. Para ello debe ir unido algún punto de la lámina (4) al cordino (7.2) mediante un conector (7.3) que deslice libremente a lo largo de dicho cordino (7.2) . Adicionalmente el anclaje con forma de gancho (7) puede llevar otra argolla (7.4) resistente para reasegurar el anclaje a otro elemento resistente del interior del edificio mediante una cuerda (por ejemplo la barandilla del tiro de escalera) . En uso, el dispositivo se dispone en el punto a proteger, una o varias plantas por debajo del posible suicida o situación de riesgo. Como se maneja plegado, premontado y trasportado el conjunto en bolsa al efecto, es posible manejarlo fácilmente y pasarlo por puertas o ventanas. Una vez en el lugar, dos personas entrenadas fijan tanto el ángulo entre los tramos de la pértiga en "Z" (1) como su longitud correcta en función de las características de la zona a proteger y por gravedad despliegan los tramo-soporte (1.1) y la lámina (4) flexible casi instantáneamente a la vez que colocan el gancho (7) en el alféizar de la ventana o barandilla resistente. Una vez desplegado y pisando la cinta (9) (liberando una mano al transferir el peso del dispositivo al pie) , se pueden unir las dos pértigas en "Z" (1) mediante una barra telescópica (5) que se inserte en la terminación en "T" (1.4) de ambas pértigas y otra barra telescópica (5.1) que conecte dos puntos intermedios de ambos tramos-mangos y los mantenga a una distancia constante, de modo que se facilite la posibilidad de que el dispositivo sea sujetado por una única persona, disponiendo a la otra para tareas diversas. Si se produce la caída de una persona, ésta es recogida por la lámina (4) y la empuja hacia abajo. Este empuje desacopla los anillos frangibles (2) que unían el tramo-soporte (1.1) con la lámina (4) provocando el cierre de la lámina (4) al deslizarse por la cuerda (3) que está conectada a punto resistente (el alfeizar) a través de un absorbedor de energía (6) conectado al anclaje con forma de gancho (7) . Al estar cerrada la lámina (4) se evita que la persona se vuelva a precipitar al vacío. Todo queda colgado de la cuerda y separado de la pared ya que la trayectoria de la caída ha sido dirigida por el cordino (7.2) (previamente tensado y atado a un elemento del suelo como un árbol o una farola) que al estar unido a la lámina (4) mediante un conector (7.3) se evita que la persona se golpee contra la pared por efecto péndulo y le provoque lesiones de distinta consideración. El dispositivo al instalarse en altura, lejos del suelo pero cerca de la persona, la víctima no ha llegado a tomar demasiada velocidad y la protección es más efectiva que con los colchones hinchables desplegados en el suelo. Además no existe limitación en cuanto a la altura del edificio. El uso de esta herramienta se concibe en el contexto de una intervención de bomberos: los bomberos la instalan. En caso de recogida de una víctima en el dispositivo, los bomberos pueden descender el conjunto con otras herramientas de las que ya disponen o incluso descolgarse por la fachada hasta la víctima para proceder a su rescate. En una realización, la lámina (4) tiene forma de prisma, pero con bases no paralelas. La base inferior quedaría oblicua, con la parte de mayor altura en el extremo opuesto al anclaje con forma de gancho (7) (figura 1) . Esto permite recoger más rápidamente a la persona y poder recortar la distancia necesaria para frenar. FALL PROTECTION DEVICE Description Technical field This application relates to a fall protection device, applicable when work is carried out at specific points on the façade and especially in the case of possible suicide attempts. Background of the invention The use of inflatable mattresses that are placed on the ground beneath potential suicides is known in the state of the art, so that they stop their fall without causing them too much damage. A major problem with this tool is its size, which sometimes prevents its installation due to the presence of street furniture, trees, vehicles... or because they are small interior patios, sometimes with narrow stairs to access them or due to other inconveniences. There are mattress models for different fall heights (up to 60 metres, equivalent to a 20th floor), so they have to absorb the energy accumulated over that entire height. In addition, the person may hit various objects (air conditioning units, awnings, balustrades, etc.) on the path that he or she would describe, which could deviate him or cause him or her damage. It is not surprising that there are buildings that are taller than 20 floors. It is preferable to be able to stop the person who falls at an intermediate point, before he or she gains too much speed so that it is possible to pick him or her up without damage. The applicant has been granted the utility model with application number U202230840, publication number ES1292254, issue date 09/12/2022 and application filing date 05/20/2022. This model solves many of the problems that the prior art did not address. The applicant, aware of the needs of: 1.- adaptation to the façade of the opening where it is installed, 2.- lightness of the device and 3.- immediacy in its use for cases of attempted The aim of the invention is to use the utility model cited to achieve an almost instant deployment system that adapts to different façade orographies (air conditioning units, pipes, distance from the perpendicular side wall, etc.) and that can be carried by a single person in a backpack. As this is a time-dependent intervention in which a few seconds can be the difference between success and failure, having a system that is light enough to be carried by a single person (either in an elevator or by stairs if there is no elevator) is of vital importance, as is the capacity for immediate deployment that is achieved when the entire device is pre-assembled and folded. The applicant is not aware of any device similar to the invention. Explanation of the invention The invention consists of an anti-fall safety device according to the first claim and whose variants solve the problems of the state of the art. In an emergency context, it is designed for use by 2 firefighters or people trained in its use. This device is used in elevated structures, one or more floors below the suicidal person, as long as it is at a sufficient height so that it does not hit the ground when it is in operation. It comprises a support, a flexible sheet and a strong anchor. The most preferred solution is that the sheet support is 2 "Z" shaped poles, independent of each other, arranged symmetrically one on each side of the sheet. Each pole is handled by one person. Each "Z" shaped pole consists of 3 sections (handle section, intermediate section and support section), preferably telescopic and collapsible between themselves (to reduce the size and facilitate their transport and storage), with a mechanism to fix the sections forming a 90° angle with the adjacent section or even any other angle. The first section, with handle functions, hereinafter "handle section" will end in a "T" shape on the side opposite the 90° angle, which will serve to counteract the force or moment of rotation generated by the weight of the device once deployed. Additionally, and once the device is deployed, the two poles can be joined in a "Z" shape by means of a telescopic bar that is inserted into the "Ti" end of both "Z" poles, and another bar A telescopic pole connecting an intermediate point of the two handle sections to maintain distance, so that the possibility of the device being held by a single person is facilitated, freeing the other for different tasks. The section of the "Z" pole opposite the handle section will be the one that supports the weight of the sheet, hereinafter "support section" and will be attached to the side of the sheet by means of frangible rings (closed with Velcro, snaps, breakable ties...) whose function is to release the sheet from the "Z" poles at the moment that the victim falls on the sheet. These frangible rings must be able to slide freely along said support section except for the frangible ring closest to the intermediate section of the "Z" pole, which will be immobile to prevent the flexible sheet from separating from the façade and creating a gap. These frangible rings can be of several stages, since it is common for people attempting suicide to throw objects (for example shoes) before jumping into the void, which could trigger the release of the support sheet, leaving the victim unprotected. The support section will end with a stop that prevents the frangible rings that connect to the flexible sheet from coming off. The support section will preferably be telescopic by gravity (depending on the inclination of the support section, it will extend or retract, thus achieving an almost instantaneous positioning of the device) and have sufficient strength to hold the flexible sheet, but if it receives the direct impact of a body in free fall, it must break away without detaching from the "Z" pole to avoid becoming an object in free fall. The rest of the sections must be telescopic and lockable to a certain measurement, that is, once its length is selected, it will be fixed and remain invariable. The flexible sheet has a rope, strap or cable (hereinafter always "rope") forming a ring around its contour that passes through both sides of the flexible sheet alternately. This rope is free to move and is configured so that when the rope is pulled, for example when the flexible sheet picks up a body in free fall, the sheet slides along the rope leaving the body enclosed in the sheet and the whole hanging from the rope. Alternatively, a point of the rope ring can also be fixed to the flexible sheet, for example in the area closest to the gap in the structure where it is installed and the rope anchored to the resistant structure. Preferably in double, so that it would travel less distance in detecting the body. The rope can be fixed to a hook-shaped anchor that goes to a point of the resistant structure (for example embracing the entire window sill). The connection between the rope and the anchor is through an energy dissipating device such as a shock absorber or an energy absorber. The hook-shaped anchor can in turn be reassured by a rope to a resistant element. The flexible sheet, usually made of canvas or netting, can be concave in shape, preferably deeper at the end furthest from the anchor, and with sufficient strength so that it does not break when a person falls or when it rubs against sharp or cutting objects. It can also be padded. The anchor will preferably be hook-shaped with a width sufficient to fit a conventional window sill into its groove. In this way, the time spent on its placement is minimal. It will have an anchor, preferably elongated, to anchor the sheet rope using a connector and an intermediate energy absorber or shock absorber. Additionally, it can have another anchor to connect a cord that reaches the ground, which once tied to a fixed point a few meters from the façade (for example a tree or a lamppost) performs a double function: a) prevent the hook-shaped anchor from being released from the fixed point (windowsill) and b) serve as a guide in the path of the sheet once it has picked up the body in free fall and slightly separates it from the façade, avoiding impact with the façade due to the pendulum effect. To do this, some point of the sheet must be attached to the cord by means of a connector that slides freely along said cord. Additionally, the hook-shaped anchor can have a resistant ring in its upper area to resecure the anchor to another resistant element inside the building by means of a rope (for example the railing of the stairwell).
Figure imgf000006_0001
For a better understanding of the invention, the following figures are included. Figure 1: Schematic exploded view of an exemplary embodiment. Figure 2: Simplified side section of an example of a device coupled to a window recess. Figure 3: A third exemplary embodiment, in perspective. Preferred embodiment of the invention A brief description of an embodiment of the invention is provided below, as an illustrative and non-limiting example of the invention. Figure 1 shows an example of an embodiment consisting of a support, in this case formed by two "Z" poles (1). The preferred pole consists of three telescopic sections that can be folded together for better transport and storage: support section (1.1), intermediate section (1.2) and handle section (1.3). At the points where one section of the "Z" pole joins another, there will be a mechanism to secure the sections forming an angle of 900 with the adjacent section or even any other angle. The support section (1.1) will preferably be telescopic by gravity, that is, depending on the inclination of said section, it will be deployed or retracted, thus achieving an almost instantaneous deployment of the device. Additionally, it has a series of frangible rings (2) whose function is to releasably join the flexible sheet (4) with the support section (1.1). These frangible rings (2) can be closed by means of a Velcro fastener, brackets, breakable flanges or any other system that fulfills this function. In addition, these frangible rings (2) must be joined to a specific point on the side of the flexible sheet (4), but they must be able to slide freely along the support section (1.1) of the "Z" pole (1), with the only exception of the frangible ring (2.1) closest to the intermediate section (1.2) of the "Z" pole, which will remain fixed to prevent the flexible sheet (4) from sliding to the end of the support section (1.1) generating a gap. Additionally, the support section (1.1) will have a stop (8) at its end to prevent the frangible rings (2) from coming out of the support section (1.1). The handle section (1.3) will preferably end in a "T" shape (1.4) to manually counteract the force or moment of rotation caused by the weight of the device once deployed. Both the intermediate section (1.2) and the handle section (1.3) must be telescopic and lockable to a certain measurement, that is, once its length is selected, it will be fixed and remain invariable. Additionally, and once the device is deployed, the two "Z" poles (1) can be joined by means of a telescopic bar (5) that is inserted into the "T" end (1.4) of both poles and another telescopic bar (5.1) that connects an intermediate point of the two handle sections, keeping their separation constant, (1.3) so that the device is connected to the support section (1.1). facilitate the possibility of the device being held by a single person, freeing the other for various tasks. To help in the assembly of the telescopic bar (5), close to the junction of the handle section (1.3) with the T-end (1.4) a piece of tape (9) or rope can be hung with the sole function of being stepped on by the person handling the "Z" pole to transfer the weight of the device to the foot and free a hand. Between the support sections (1.1) of the "Z" poles there is a flexible sheet (4) that can be substantially flat, but preferably has a concave shape, generally formed by a canvas or net, sufficiently strong so that it does not break when the person falls or by friction with sharp elements. The flexible sheet (4) has a rope (3), strap or cable around its edge that passes through holes, passages in the net or mesh, eyelets... so that it passes through both sides of the flexible sheet (4) alternately. The rope (3) can slide freely along the contour of the flexible sheet (4), so that when picking up a body in free fall, the sheet (4) slides along the rope (3) and is strangled by it at its upper part. The flexible sheet (4) can be concave in shape, preferably with greater depth at the end furthest from the anchor. Additionally, it can be padded. On the other hand, the rope (3) must be fixed to a resistant point that will support the impact force in stopping the fall, but this connection will be through an energy absorbing element (6) by cushioning or breaking seams, in order to protect the person picked up in the device. The preferred resistant point will be the sill of a window or balcony railing. To join the rope (3) to the resistant point, an anchor will be used that will preferably be in the form of a hook (7) with a width sufficient for its throat to embrace the sill of a conventional window. It will have a ring (7.1), preferably elongated, to anchor, by means of a connector and an energy absorber (6) or intermediate shock absorber, the rope (3) of the flexible sheet (4). Additionally, it can have a connection point (7.5) of a cord (7.2) that reaches the ground and performs a double function once tied to a fixed point separated by a few meters from the facade (for example a tree): a) prevent the hook-shaped anchor (7) from being released from the fixed point (window sill) and b) serve as a guide in the path of the sheet once it has picked up the body in free fall and slightly separates it from the facade, avoiding the impact of the victim with the facade due to the pendulum effect. For this, some point of the sheet (4) must be connected to the cord (7.2) by means of a connector (7.3) that slides The device can be freely moved along the length of the cord (7.2). Additionally, the hook-shaped anchor (7) can have another strong ring (7.4) to re-secure the anchor to another strong element inside the building by means of a rope (for example, the railing of the stairwell). In use, the device is placed at the point to be protected, one or more floors below the possible suicide or risk situation. As it is handled folded, pre-assembled and the assembly is transported in a bag for this purpose, it is easy to handle and pass through doors or windows. Once in place, two trained people set both the angle between the sections of the "Z" pole (1) and its correct length depending on the characteristics of the area to be protected and by gravity they deploy the support section (1.1) and the flexible sheet (4) almost instantly while placing the hook (7) on the windowsill or strong railing. Once deployed and stepping on the tape (9) (freeing one hand by transferring the weight of the device to the foot), the two poles can be joined in a "Z" shape (1) by means of a telescopic bar (5) that is inserted into the "T" end (1.4) of both poles and another telescopic bar (5.1) that connects two intermediate points of both sections-handles and keeps them at a constant distance, so that the possibility of the device being held by a single person is facilitated, leaving the other available for different tasks. If a person falls, he or she is picked up by the sheet (4) and pushed downwards. This push disengages the frangible rings (2) that joined the support section (1.1) with the sheet (4) causing the sheet (4) to close as it slides along the rope (3) that is connected to a resistant point (the windowsill) through an energy absorber (6) connected to the hook-shaped anchor (7). When the sheet (4) is closed, the person is prevented from falling back into the void. Everything remains hanging from the rope and separated from the wall since the trajectory of the fall has been directed by the cord (7.2) (previously stretched and tied to an element on the ground such as a tree or a lamppost) which, when attached to the sheet (4) by means of a connector (7.3), prevents the person from hitting the wall due to the pendulum effect and causing injuries of varying severity. The device, installed at a height, far from the ground but close to the person, means that the victim has not reached too much speed and the protection is more effective than with inflatable mattresses deployed on the ground. In addition, there is no limitation as to the height of the building. The use of this tool is conceived in the context of a firefighter intervention: the firefighters install it. In the event of a victim being picked up in the device, the firefighters can lower the device with other tools from the which they already have or even lowered down the façade to the victim to proceed with the rescue. In one embodiment, the sheet (4) is prism-shaped, but with non-parallel bases. The lower base would be oblique, with the highest part at the end opposite the hook-shaped anchor (7) (figure 1). This allows the person to be picked up more quickly and to reduce the distance needed to stop.

Claims

Reivindicaciones 1ª Dispositivo de protección anticaídas, desplegable en una estructura elevada, caracterizado por que comprende un soporte (1) de una lámina (4) flexible que posee un anillo de cuerda (3) por su contorno y que pasa por ambas caras de la lámina (4) flexible de forma alterna, con libertad de desplazamiento y configurada para que con el movimiento relativo entre la lámina (4) y la cuerda (3), la lámina (4) se recoge estrangulada en su parte superior por la cuerda (3), siendo la cuerda (3) fijable a un punto fijo de la estructura. 2ª Dispositivo de protección anticaídas, según la reivindicación 1, caracterizado por que el soporte (1) está compuesto por dos pértigas en "Z" que se posicionan enfrentadas entre sí de forma simétrica y con separación variable. 3ª Dispositivo de protección anticaídas, según la reivindicación 2, caracterizado por que cada pértiga en "Z" (1) tiene 3 tramos: tramo-soporte (1.1), tramo intermedio (1.2) y tramo-mango (1.3), desarrollados en el mismo plano. Los tramos están articulados entre sí y disponen de mecanismos para fijarlos a 90º de articulación entre tramos contiguos e incluso cualquier otra angulación. 4ª Dispositivo de protección anticaídas, según la reivindicación 3, caracterizado por que cada tramo de la pértiga en "Z" es telescópico. Pudiendo ser el tramo-soporte (1.1) telescópico por gravedad (en función de su inclinación, se alargará o recogerá) y los otros dos tramos (1.2 y 1.3) telescópicos enclavables a una medida determinada, es decir, una vez seleccionada su longitud, quedar fija y permanecer invariable. 5ª Dispositivo de protección anticaídas, según la reivindicación 3, caracterizado por: a) el extremo del tramo-manga (1.3) termina en forma de "T" (1.4) para contrarrestar manualmente la fuerza o momento de rotación producida por el peso del dispositivo; y b) el extremo del tramo-soporte (1.1) tiene un tope (8) para evitar que los anillos frangibles (2) se salgan de dicho tramo-soporte (1.1). 6ª Dispositivo de protección anticaídas, según la reivindicación 2, caracterizado porque una vez desplegado, las dos pértigas en "Z" (1) pueden ser unidas por una barra telescópica (5) que se inserte en las terminaciones en "T" (1.4) y por otra barra telescópica (5.1) que conecte dos puntos intermedios de los tramos mango (1.3) manteniendo constante su separación, con el objeto de facilitar la sujeción del dispositivo por una sola persona. 7ª Dispositivo de protección anticaídas, según las reivindicaciones 1, 2 y 3, caracterizado por que la unión entre el soporte (1) y la lámina (4) flexible es mediante una serie de anillos frangibles unidos a los laterales de la lámina (4) y que rodean al tramo-soporte (1.1) y deslizan libremente a lo largo de él, a excepción del anillo frangible (2.1) más próximo al tramo intermedio (1.2) que no deslizará sino quedará inmóvil. 8ª Dispositivo de protección anticaídas, según la reivindicación 1, caracterizado por que la lámina (4) flexible tiene forma cóncava, con mayor altura en el lado opuesto al anclaje (7). 9ª Dispositivo de protección anticaídas, según la reivindicación 1, caracterizado por que la unión de la cuerda (3) con el punto fijo (el alfeizar) se hace mediante un anclaje con forma de gancho (7). 10ª Dispositivo de protección anticaídas, según la reivindicación 9, caracterizado por que el gancho (7) tiene: a) punto (7.5) para conexión de cordino (7.2) y punto (7.1) (preferiblemente alargado) para conexión de la cuerda (3) y b) punto (7.4) para reaseguramiento del anclaje. 11ª Dispositivo de protección anticaídas, según las reivindicaciones 1, 9 y 10, caracterizado por que la unión entre la cuerda (3) y el gancho (7) se hace a través de un sistema de absorción de energía (6). 12ª Dispositivo de protección anticaídas, según las reivindicaciones 1, 8 y 10, caracterizado por que la lámina (4) está unida a cordino (7.2) mediante un conector (7.3) que desliza libremente a lo largo del cordino (7.2). 13ª Dispositivo de protección anticaídas, según la reivindicación 3, caracterizado por que un punto próximo a la unión entre el tramo-soporte (1.1) y el tramo intermedio (1.2) es un punto de fractura, con la suficiente resistencia como para soportar el peso del dispositivo y las fuerzas producidas en su uso más habitual, pero que si incide directamente un cuerpo en caída libre contra el tramo-soporte (1.1), este se partiría pero sin desprenderse de la pértiga en (1) para no convertirse en un objeto en caída libre. 14º Dispositivo de protección anticaídas, según reivindicación 5, caracterizado por quede un punto próximo a la unión entre el tramo-mango (1.3) y la terminación en "T" (1.4), cuelga un trozo de cinta (9) o cuerda para que al ser pisada transfiera al pie el peso del dispositivo. 1st Fall protection device, deployable on an elevated structure, characterized in that it comprises a support (1) of a flexible sheet (4) that has a rope ring (3) around its contour and that passes through both sides of the flexible sheet (4) alternately, with freedom of movement and configured so that with the relative movement between the sheet (4) and the rope (3), the sheet (4) is collected strangled at its upper part by the rope (3), the rope (3) being fixable to a fixed point of the structure. 2nd Fall protection device, according to claim 1, characterized in that the support (1) is composed of two "Z" poles that are positioned facing each other symmetrically and with variable separation. 3rd Fall protection device, according to claim 2, characterized in that each "Z" pole (1) has 3 sections: support section (1.1), intermediate section (1.2) and handle section (1.3), developed in the same plane. The sections are articulated with each other and have mechanisms to fix them at 90º of articulation between adjacent sections and even any other angle. 4th Fall protection device, according to claim 3, characterized in that each section of the "Z" pole is telescopic. The support section (1.1) can be telescopic by gravity (depending on its inclination, it will lengthen or retract) and the other two sections (1.2 and 1.3) can be telescopic and can be interlocked to a certain measurement, that is, once its length is selected, it can be fixed and remain invariable. 5th Fall protection device, according to claim 3, characterized by: a) the end of the sleeve section (1.3) ends in a "T" shape (1.4) to manually counteract the force or moment of rotation produced by the weight of the device; and b) the end of the support section (1.1) has a stop (8) to prevent the frangible rings (2) from coming out of said support section (1.1). 6th Fall protection device, according to claim 2, characterized in that once deployed, the two "Z" poles (1) can be joined by a telescopic bar (5) that is inserted into the "T" ends (1.4) and by another telescopic bar (5.1) that connects two intermediate points of the handle sections (1.3) 7. Fall protection device, according to claims 1, 2 and 3, characterized in that the connection between the support (1) and the flexible sheet (4) is by means of a series of frangible rings attached to the sides of the sheet (4) and which surround the support section (1.1) and slide freely along it, except for the frangible ring (2.1) closest to the intermediate section (1.2) which will not slide but will remain motionless. 8. Fall protection device, according to claim 1, characterized in that the flexible sheet (4) has a concave shape, with greater height on the side opposite the anchor (7). 9. Fall protection device, according to claim 1, characterized in that the connection of the rope (3) to the fixed point (the windowsill) is made by means of a hook-shaped anchor (7). 10th Fall protection device, according to claim 9, characterized in that the hook (7) has: a) point (7.5) for connecting the cord (7.2) and point (7.1) (preferably elongated) for connecting the rope (3) and b) point (7.4) for reassuring the anchor. 11th Fall protection device, according to claims 1, 9 and 10, characterized in that the connection between the rope (3) and the hook (7) is made through an energy absorption system (6). 12th Fall protection device, according to claims 1, 8 and 10, characterized in that the sheet (4) is attached to the cord (7.2) by means of a connector (7.3) that slides freely along the cord (7.2). 13th Fall protection device, according to claim 3, characterized in that a point close to the junction between the support section (1.1) and the intermediate section (1.2) is a fracture point, with sufficient strength to support the weight of the device and the forces produced in its most common use, but if a body in free fall directly hits the support section (1.1), it would break. but without detaching itself from the pole at (1) so as not to become an object in free fall. 14th Fall protection device, according to claim 5, characterized in that a piece of tape (9) or rope hangs from a point close to the junction between the handle section (1.3) and the "T" end (1.4) so that when stepped on it transfers the weight of the device to the foot.
PCT/ES2023/070736 2023-02-15 2023-12-07 Fall protection device WO2024170805A1 (en)

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ES202300084U ES1299172Y (en) 2023-02-15 2023-02-15 fall protection device
ESU202300084 2023-02-15

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1244391A (en) * 1968-09-06 1971-09-02 Pedley Knowles & Co Safety device and method of using the same
EP0546674A1 (en) * 1991-11-08 1993-06-16 Nusbaum, Robert Safety net arrangement for building elevator shafts
JP2011241624A (en) * 2010-05-19 2011-12-01 Nakamura Densetsu Kogyo Co Ltd Guard net
ES1292254U (en) * 2022-05-20 2022-06-27 Delgado Alberto Cabeza Anticaudda Safety Device (Machine-translation by Google Translate, not legally binding)
CN115030542A (en) * 2022-07-21 2022-09-09 刘爽 Anti-falling-from-high-altitude security device for building engineering reserved window and using method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1244391A (en) * 1968-09-06 1971-09-02 Pedley Knowles & Co Safety device and method of using the same
EP0546674A1 (en) * 1991-11-08 1993-06-16 Nusbaum, Robert Safety net arrangement for building elevator shafts
JP2011241624A (en) * 2010-05-19 2011-12-01 Nakamura Densetsu Kogyo Co Ltd Guard net
ES1292254U (en) * 2022-05-20 2022-06-27 Delgado Alberto Cabeza Anticaudda Safety Device (Machine-translation by Google Translate, not legally binding)
CN115030542A (en) * 2022-07-21 2022-09-09 刘爽 Anti-falling-from-high-altitude security device for building engineering reserved window and using method

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ES1299172Y (en) 2023-07-11

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