WO2008148922A1 - Lifting device for wheelchair - Google Patents

Lifting device for wheelchair Download PDF

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Publication number
WO2008148922A1
WO2008148922A1 PCT/ES2008/070081 ES2008070081W WO2008148922A1 WO 2008148922 A1 WO2008148922 A1 WO 2008148922A1 ES 2008070081 W ES2008070081 W ES 2008070081W WO 2008148922 A1 WO2008148922 A1 WO 2008148922A1
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WO
WIPO (PCT)
Prior art keywords
chair
wheelchair
claw
base
guide
Prior art date
Application number
PCT/ES2008/070081
Other languages
Spanish (es)
French (fr)
Inventor
Juan Pineda Mariscal
Original Assignee
Juan Pineda Mariscal
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 Juan Pineda Mariscal filed Critical Juan Pineda Mariscal
Publication of WO2008148922A1 publication Critical patent/WO2008148922A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/104—Devices for lifting or tilting the whole wheelchair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • A61G3/02—Loading or unloading personal conveyances; Facilitating access of patients or disabled persons to, or exit from, vehicles
    • A61G3/06—Transfer using ramps, lifts or the like
    • A61G3/063—Transfer using ramps, lifts or the like using lifts separate from the vehicle, e.g. fixed on the pavement

Definitions

  • the object of the invention is, as its own title indicates, a wheelchair lift, standard since it can be attached to any type of wheelchair to allow the user (with or without disabilities), by simply attaching the contraption to its wheelchair, gain considerable height and thus achieve objects and views that otherwise would not be possible to achieve, providing the user with this much demanded freedom.
  • the lifting device object of this invention gives the user an extra height, thus allowing them to achieve their purpose (either reaching things or maintaining a visual line with their interlocutor), and all this at their own craving, in a safe way and anywhere he pleases.
  • the device fits perfectly to any existing chair in the market, since it has a standard system for attaching the chassis of the aforementioned wheelchairs. It is a robust device that manages to lift and support both the user's weight and its own weight (chair-lift package). By its own simple manufacturing, the system is reliable and safe for the function it performs, in addition to assuming a minimum economic and structural impact, for the users themselves.
  • JP2004231333 describes an elevator that can be attached to any wheelchair that comprises: a base which, due to its arrangement and construction characteristics, can be disassembled, which is rectangular in shape; a moving part that holds and holds the chair; a lifting arm, which contains a threaded shaft; a threaded cylinder by which the moving part is geared to the threaded shaft; a motor with gear system that develops a right and left turn of the threaded shaft of the arm; an electrical or electronic console initially located on the lifting arm but that functions as a remote control and therefore can control the operation of the motor in a certain range of action.
  • this device is designed for stretchers, it is not a self-supporting device, but rather a piece of furniture that is placed in a specific and specific place; Nor is it a retractable element adaptable to any chair.
  • the objective of this invention is not to create a specific type of chair, nor to improve an existing one, but to take another step, innovating in an elevator that fits any type of chair, whether mechanical or electrical, capable of placing the user at the desired height, maintaining the stability of the set, satisfying aesthetic requirements since apparently the chair does not modify its shape, but its functionality.
  • the lifting device object of the invention is mainly intended to place its users at unattainable heights from a conventional wheelchair, at the request of the person or a third party, and attachable to any type of wheelchair for people with disabilities or No, either mechanical or manual.
  • the present invention has been developed to solve the problematic architectural barriers set forth above, based on a simple but very effective solution, since it is based on the coupling of a portable gadget (elevator), to the aforementioned wheelchairs, capable of lift and maintain the weight corresponding to the user more than the conventional wheelchair at the desired height. It is attached to any type of wheelchair by the rear by an anchor system that unifies the elevator with the chassis of the chair, and remains unnoticed at all times until it becomes useful.
  • This wheelchair lifting device comprises a removable base, rectangular or similar, that occupies a space under the seat of the chair between its two major wheels, provided with a vertical arm that is located by the central-rear part of the backrest of the chair, equipped with a guide through which, by means of a motor located on said base, an "H" claw runs, whose branches are laterally and vertically extensible in order to adapt to any type of chair, which is provided at the ends of coupling means in the chassis of the chair, to move attached to it once coupled, keeping the support base in the resting position below the seat thereof, without touching the ground, and in position Operational lifting of the chair said base rests on the ground and the "H" claw is located in the upper area of the vertical arm keeping the chair in the air so that the user is at an equivalent height of one pe rsona standing.
  • the coupling means of the claw in "H” in the existing guide in the vertical arm have a certain degree of freedom of tilting in a longitudinal direction with respect to the chair in order to adapt to any model existing in the market in conjunction with the possibility of varying the length and width of the arms of the "H" shaped claw.
  • the movements of the elevator are controlled by an easy-to-use console that is placed in a place accessible to the user or a third person.
  • the invention in question adopts the adjective of portable by having a system of accumulated energy that feeds the system that causes the desired movement. Lifting or maintenance is possible when the wheelchair is at rest, and that is when the user can perform the action to lift and / or maintain the wheelchair in which it is located. Once the user places the chair at the desired height, the elevator Ia keeps breaking that architectural barrier so little desired. Description of the figures
  • Figure 1 shows a detail of the coupling and standardization of the invention to any tube or surface belonging to the chassis of the wheelchair.
  • Figures 2 and 3 correspond to both front and side views of the device of the invention.
  • Figure 4 shows a detail of the elevator coupling to a conventional wheelchair (12) in a position of maximum elevation seen from the rear.
  • the standard lift for any type of wheelchair of the invention is coupled to the chassis of the wheelchair (12) by means of clamps (3), whether metallic or of plastic material, adjustable with rotation Crazy blockers by a pin screw, placed on the four ends of the "H" shaped adjustable grip system (1).
  • the elevator adopts its equilibrium position by resting on a base (8) with a rectangular or similar shape, removable in several parts for a better movement, equipped with blocks of non-slip material on its entire support surface. It has an arm (9), provided with a guide (10), located orthogonally to its base, vertically, whose functionality is to hold and join the anchoring system (1) with the base (8), applying the movement to said system throughout the entire guide (10).
  • This arm has a threaded rod held at its two ends by two cylindrical bearings integral to the shaft of the rod, thus possessing freedom of rotation.
  • the aforementioned bearings are anchored at the ends of the arm (9), which is structurally a rectangular or similar tube, inside which the rod or guide (10) is housed and the joint that it has with the anchoring system.
  • the anchoring system (1) to the chassis of the chair is a movable structure shaped "H", which can be moved at the request of the user along the guide (10) reaching the desired height.
  • the clamping nut (3) In the center of the anchoring system is the clamping nut (3) that is crossed by the threaded rod.
  • the outer body of the nut rectangular or similar, is internal to the tube that forms the structure of the guide arm, and runs in solidarity with it when the rod is rotated in any of its directions.
  • the rotation of the central rod of the guide arm proposes a movement of the anchoring system, since the nut, which remains welded in the central part of said system, is locked in the tube (9) of said arm.
  • the anchoring system has four grip points, with the chassis of the chair, which are located at the four ends of the mentioned structure in the form of "H" (1), thus ensuring the perfect union and avoiding any type of accident.
  • the grip (6) itself is attached to the structure with a shaft with crazy rotation locked at any angle of rotation by means of a captive screw.
  • the coupling system that has said grip consists of two semicircles that end up joining with two screws that have inside square notches, in which the corresponding tubes of the chair chassis will remain anchored
  • the arms (2) of the structure in the form of "H" are extensible and therefore can be shortened in extension in a horizontal direction (5).
  • the arms (4) are telescopic (7), thus ensuring their extension or shortening in the vertical direction, with which the coupling to any wheelchair existing in the market can be carried out.
  • the operation of the device is carried out by means of an electric motor (11) with the possibility of turning in both directions, with self-locking brake to the lack of power.
  • Said motor is coupled to a gearbox that favors a minimum speed of rotation, in addition to a sufficient torque to raise the chair.
  • the motor is powered by a rechargeable battery.
  • the electrical or electronic control of the operation of this motor and therefore of the device is carried out by means of a console located in one of the armrests of the chair (12), which consists of several buttons that allow controlling the movements of the device.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Handcart (AREA)

Abstract

Lifting device for wheelchair, wherein the principal function is to manage to situate the users of said seats at heights which are not possible in a standard wheelchair, and comprising a device linkable to the chair itself and transportable therewith, said device including a dismountable base (8) located beneath the seat of the chair (12), equipped with a vertical arm (9) situated behind the seat back and equipped with a guide (10) along which a H-shaped grab travels; the guide arms are laterally and vertically extendible for adaption to any type of chair and equipped with means for coupling (6) to the chair chassis.

Description

DESCRIPCIÓN DESCRIPTION
Dispositivo elevador de sillas de ruedas.Wheelchair lifting device.
Objeto de Ia invenciónObject of the invention
La invención tiene por objeto, como su propio título indica, un elevador de sillas de ruedas, estándar ya que puede acoplarse a cualquier tipo de silla de ruedas para permitirle al usuario (con o sin discapacidad), mediante el simple acoplamiento del artilugio a su silla de ruedas, ganar una altura considerable y así alcanzar objetos y vistas que de otro modo no serían posibles de conseguir, dotando al usuario de esta libertad tan demandada.The object of the invention is, as its own title indicates, a wheelchair lift, standard since it can be attached to any type of wheelchair to allow the user (with or without disabilities), by simply attaching the contraption to its wheelchair, gain considerable height and thus achieve objects and views that otherwise would not be possible to achieve, providing the user with this much demanded freedom.
Una de las trabas principales que todo usuario de sillas de ruedas aqueja sobre éstas, es Ia altura insuficiente de las que se les dota en el mundo en que vivimos, diseñado específicamente para bípedos erectos.One of the main obstacles that every user of wheelchairs afflicts on them, is the insufficient height that they are given in the world in which we live, designed specifically for erect bipeds.
El mecanismo en cuestión posibilita Ia elevación de cualquier silla de ruedas existente en el mercado, tanto mecánicas como manuales, con el propósito de que sus usuarios, tengan o no alguna discapacidad, puedan tanto acceder a sitios inalcanzables debido a Ia baja altura de las convencionales sillas, como ampliar su campo de visión, salvando de esta forma barreras arquitectónicas que hoy por hoy dificultan su vida cotidiana. Es sabida Ia problemática que tienen dichos usuarios, tanto en su propio hogar como en su vida en Ia calle, a Ia hora, por ejemplo, de acceder al estante superior de un electrodoméstico tan básico como puede ser un frigorífico, o al operar en un cajero automático de una sucursal bancaria, o mantener una conversación alguien que se encuentre sentado tras un mostrador,. Esta problemática se soluciona muy favorablemente con el dispositivo elevador objeto de esta invención, ya que dota al usuario de una altura extra, permitiendo así conseguir su propósito (ya sea alcanzar cosas o mantener una línea visual con su interlocutor), y todo ello a su propio antojo, de una forma segura y en cualquier lugar que Ie plazca. Además de Io mencionado anteriormente, el artilugio se acopla perfectamente a cualquier silla existente en el mercado, ya que posee un sistema estándar de acople a los chasis de las mencionadas sillas de ruedas. Es un aparato robusto, que consigue elevar y sostener tanto el peso del usuario como su propio peso (paquete silla-elevador). Por su propia y sencilla fabricación, el sistema es fiable y seguro para Ia función que desempeña, además de suponer un mínimo impacto tanto económico como estructural, para los propios usuarios.The mechanism in question makes it possible to lift any existing wheelchair on the market, both mechanical and manual, so that its users, whether or not they have a disability, can both access unattainable sites due to the low height of conventional chairs, such as broadening your field of vision, thus saving architectural barriers that today hinder your daily life. It is known the problem that these users have, both in their own home and in their life on the street, at the time, for example, of accessing the upper shelf of an appliance as basic as a refrigerator, or when operating in a ATM of a bank branch, or having a conversation someone who is sitting behind a counter. This problem is solved very favorably with the lifting device object of this invention, since it gives the user an extra height, thus allowing them to achieve their purpose (either reaching things or maintaining a visual line with their interlocutor), and all this at their own craving, in a safe way and anywhere he pleases. In addition to the aforementioned, the device fits perfectly to any existing chair in the market, since it has a standard system for attaching the chassis of the aforementioned wheelchairs. It is a robust device that manages to lift and support both the user's weight and its own weight (chair-lift package). By its own simple manufacturing, the system is reliable and safe for the function it performs, in addition to assuming a minimum economic and structural impact, for the users themselves.
Estado de Ia técnicaState of the art
Se conocen diferentes tipos de sillas que colocan al usuario en posición vertical-bípeda, al igual que mecanismos cuyo fin es apoyar los pies sobre los reposapiés de Ia propia silla o amarrar literalmente a los usuarios por las extremidades inferiores y bascular algunas de las partes de Ia silla, como puede ser el asiento o asiento-respaldo. También se conocen sillas con mecanismos de elevación y descenso de, únicamente, el asiento (ES- 1046189-U). Por otro lado también existen invenciones de sillas de ruedas para enfermos e impedidos que facilitan el traslado del paciente desde Ia cama a Ia silla y viceversa (ES-1027358-U). Dentro del ámbito de sillas de ruedas enderezables (que intentan ganar altura) que antes hemos mencionado se pueden enumerar varios documentos, entre ellos cabe destacar una silla de ruedas enderezable sin motor eléctrico (EP-0159562) o con motor eléctrico (ES-2128192-T3). Siguientes mejoras se encuentran reflejadas en los documentos EP-0065129 y en el EP-0159562. Otro tipo de silla de ruedas enderezable puede obtenerse en Ia patente FR-A-2697418, uniendo el reposapiés en dos piezas articuladas con el asiento.Different types of chairs are known that place the user in a vertical-bipedal position, as well as mechanisms whose purpose is to support the feet on the footrests of the chair itself or literally tie the users by the lower extremities and swing some of the parts of The chair, such as the seat or seat-backrest. Chairs with lifting and lowering mechanisms of only the seat are also known (ES-1046189-U). On the other hand there are also wheelchair inventions for the sick and disabled that facilitate the transfer of the patient from the bed to the chair and vice versa (ES-1027358-U). Within the scope of straightening wheelchairs (trying to gain height) that we have mentioned above, several documents can be listed, among them a straightable wheelchair without an electric motor (EP-0159562) or with an electric motor (ES-2128192- T3). Following improvements are reflected in documents EP-0065129 and EP-0159562. Another type of straightening wheelchair can be obtained in patent FR-A-2697418, joining the footrest in two articulated parts with the seat.
El documento JP2004231333 describe un elevador acoplable a cualquier silla de ruedas que comprende: una base que por su disposición y características constructivas es susceptible de ser desmontada, que tiene forma rectangular; una pieza móvil que sujeta y sostiene a Ia silla; un brazo elevador, que contiene un eje roscado; un cilindro roscado mediante el que se engrana Ia pieza móvil al eje roscado; un motor con sistema de engranajes que desarrolla un giro tanto a derechas como a izquierdas del eje roscado del brazo; una consola eléctrica o electrónica situada inicialmente en el brazo elevador pero que funciona como mando a distancia y por tanto puede controlar el funcionamiento del motor en un cierto radio de acción. Además de que este dispositivo está pensado para camillas, no se trata de un dispositivo autoportante si no de un elemento de mobiliario que se sitúa en un lugar concreto y específico; tampoco es un elemento retráctil adaptable a cualquier silla.JP2004231333 describes an elevator that can be attached to any wheelchair that comprises: a base which, due to its arrangement and construction characteristics, can be disassembled, which is rectangular in shape; a moving part that holds and holds the chair; a lifting arm, which contains a threaded shaft; a threaded cylinder by which the moving part is geared to the threaded shaft; a motor with gear system that develops a right and left turn of the threaded shaft of the arm; an electrical or electronic console initially located on the lifting arm but that functions as a remote control and therefore can control the operation of the motor in a certain range of action. In addition to the fact that this device is designed for stretchers, it is not a self-supporting device, but rather a piece of furniture that is placed in a specific and specific place; Nor is it a retractable element adaptable to any chair.
Por eso el objetivo de esta invención no es crear un tipo específico de silla, ni mejorar una existente, sino dar un paso más, innovando en un elevador que se acople a cualquier tipo de silla, ya sea mecánica o eléctrica, capaz de situar al usuario a Ia altura deseada, manteniendo Ia estabilidad del conjunto, satisfaciendo exigencias estéticas ya que aparentemente Ia silla no modifica su forma, pero sí su funcionalidad.That is why the objective of this invention is not to create a specific type of chair, nor to improve an existing one, but to take another step, innovating in an elevator that fits any type of chair, whether mechanical or electrical, capable of placing the user at the desired height, maintaining the stability of the set, satisfying aesthetic requirements since apparently the chair does not modify its shape, but its functionality.
Descripción de Ia invenciónDescription of the invention
El dispositivo elevador objeto de Ia invención está destinado principalmente a conseguir situar a sus usuarios a alturas inalcanzables desde una silla de ruedas convencional, a petición de Ia propia persona o de una tercera, y acoplable a cualquier tipo de silla de ruedas para personas discapacitadas o no, ya sea mecánica o manual. La presente invención ha sido elaborada para solucionar las problemáticas barreras arquitectónicas expuestas anteriormente, en base a una solución sencilla pero muy eficaz, ya que se basa en el acople de un artilugio, (elevador) portable, a las mencionadas sillas de ruedas, capaz de elevar y mantener el peso correspondiente al usuario más al de Ia silla de ruedas convencional a Ia altura deseada. Se sujeta a cualquier tipo de silla de ruedas por Ia parte posterior mediante un sistema de anclajes que unifica al elevador con el chasis de Ia silla, y permanece inadvertido en todo momento hasta que se hace útil. Este dispositivo elevador de sillas de ruedas, comprende una base desmontable, de forma rectangular o similar, que ocupa un espacio debajo del asiento de Ia silla entre sus dos ruedas mayores, provista de un brazo vertical que queda situado por Ia parte central-posterior del respaldo de Ia silla, dotado de una guía por Ia que discurre, mediante accionamiento de un motor situado en dicha base, una garra en "H" , cuyas ramas son extensibles lateral y verticalmente a fin de adaptarse a cualquier tipo de silla, que está provista en los extremos de unos medios de acoplamiento en el chasis de Ia silla, para desplazarse unido a ella una vez acoplado, manteniendo en posición de reposo Ia base de apoyo por debajo del asiento de Ia misma, sin tocar el suelo, y en posición operativa de izado de Ia silla dicha base apoya en el suelo y Ia garra en "H" se sitúa en Ia zona superior del brazo vertical manteniendo Ia silla en el aire para que el usuario se sitúe a una altura equivalente de una persona de pie.The lifting device object of the invention is mainly intended to place its users at unattainable heights from a conventional wheelchair, at the request of the person or a third party, and attachable to any type of wheelchair for people with disabilities or No, either mechanical or manual. The present invention has been developed to solve the problematic architectural barriers set forth above, based on a simple but very effective solution, since it is based on the coupling of a portable gadget (elevator), to the aforementioned wheelchairs, capable of lift and maintain the weight corresponding to the user more than the conventional wheelchair at the desired height. It is attached to any type of wheelchair by the rear by an anchor system that unifies the elevator with the chassis of the chair, and remains unnoticed at all times until it becomes useful. This wheelchair lifting device comprises a removable base, rectangular or similar, that occupies a space under the seat of the chair between its two major wheels, provided with a vertical arm that is located by the central-rear part of the backrest of the chair, equipped with a guide through which, by means of a motor located on said base, an "H" claw runs, whose branches are laterally and vertically extensible in order to adapt to any type of chair, which is provided at the ends of coupling means in the chassis of the chair, to move attached to it once coupled, keeping the support base in the resting position below the seat thereof, without touching the ground, and in position Operational lifting of the chair said base rests on the ground and the "H" claw is located in the upper area of the vertical arm keeping the chair in the air so that the user is at an equivalent height of one pe rsona standing.
Se ha previsto que los medios de acoplamiento de Ia garra en "H" en Ia guía existente en el brazo vertical presenten un cierto grado de libertad de basculamiento en sentido longitudinal con respecto a Ia silla a fin de adaptarse a cualquier modelo existente en el mercado en conjunción con Ia posibilidad de variar Ia longitud y Ia anchura de los brazos de Ia garra con forma de "H".It is provided that the coupling means of the claw in "H" in the existing guide in the vertical arm have a certain degree of freedom of tilting in a longitudinal direction with respect to the chair in order to adapt to any model existing in the market in conjunction with the possibility of varying the length and width of the arms of the "H" shaped claw.
Los movimientos del elevador se controlan mediante una consola de fácil manejo que se coloca en un lugar accesible para el usuario o para una tercera persona. La invención en cuestión adopta el adjetivo de portable al poseer un sistema de energía acumulada que alimenta al sistema que provoca el movimiento deseado. La elevación o mantenimiento se hace posible cuando Ia silla de ruedas se encuentra en reposo, y es entonces cuando el usuario puede realizar Ia acción para elevar y/o mantener a Ia silla de ruedas en Ia que se encuentra emplazado. Una vez el usuario sitúa Ia silla a Ia altura deseada, el elevador Ia mantiene rompiendo así esa barrera arquitectónica tan poco deseada. Descripción de las figurasThe movements of the elevator are controlled by an easy-to-use console that is placed in a place accessible to the user or a third person. The invention in question adopts the adjective of portable by having a system of accumulated energy that feeds the system that causes the desired movement. Lifting or maintenance is possible when the wheelchair is at rest, and that is when the user can perform the action to lift and / or maintain the wheelchair in which it is located. Once the user places the chair at the desired height, the elevator Ia keeps breaking that architectural barrier so little desired. Description of the figures
A modo de complemento a Ia descripción que se está realizando y con objeto de ayudar a una mejor comprensión de las particularidades de Ia invención, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado Io siguiente:As a complement to the description that is being made and in order to help a better understanding of the particularities of the invention, in accordance with a preferred example of practical implementation thereof, a game is accompanied as an integral part of said description. of drawings where, for the purposes of illustration and not limitation, the following has been represented:
La figura 1 muestra un detalle del enganche y estandarización de Ia invención a cualquier tubo o superficie perteneciente al chasis de Ia silla de ruedas.Figure 1 shows a detail of the coupling and standardization of the invention to any tube or surface belonging to the chassis of the wheelchair.
Las figuras 2 y 3 se corresponden con sendas vistas frontal y lateral del dispositivo de Ia invención.Figures 2 and 3 correspond to both front and side views of the device of the invention.
La figura 4 muestra un detalle del acople del elevador a una silla de ruedas convencional (12) en posición de máxima elevación visto desde Ia parte posterior.Figure 4 shows a detail of the elevator coupling to a conventional wheelchair (12) in a position of maximum elevation seen from the rear.
Realización preferente de Ia invenciónPreferred embodiment of the invention
Como se puede apreciar en las figuras adjuntas el elevador estándar para cualquier tipo de silla de ruedas de Ia invención se acopla al chasis de Ia silla de ruedas (12) mediante abrazaderas (3), ya sean metálicas o de material plástico, ajustables con giro loco blocantes por un tornillo pasador, colocadas en los cuatro extremos del sistema de agarre ajustable en forma de "H" (1). El elevador adopta su posición de equilibrio apoyándose sobre una base (8) con forma rectangular o similar, desmontable en varias partes para un mejor traslado, dotada de tacos de material antideslizante en toda su superficie de apoyo. Posee un brazo (9), provisto de una guía (10), situado en posición ortogonal a su base, verticalmente, cuya funcionalidad es Ia de sostener y unir al sistema de anclaje (1) con Ia base (8), aplicando el movimiento a dicho sistema a Io largo de toda Ia guía (10). Este brazo posee una varilla roscada sujeta en sus dos extremos mediante dos rodamientos cilindricos solidarios al eje de Ia varilla, poseyendo así libertad de giro. Los rodamientos antes mencionados son anclados en los extremos del brazo (9), que estructuralmente es un tubo rectangular o similar, en cuyo interior se encuentra alojada Ia varilla o guía (10) y discurre Ia unión que ésta tiene con el sistema de anclaje.As can be seen in the attached figures, the standard lift for any type of wheelchair of the invention is coupled to the chassis of the wheelchair (12) by means of clamps (3), whether metallic or of plastic material, adjustable with rotation Crazy blockers by a pin screw, placed on the four ends of the "H" shaped adjustable grip system (1). The elevator adopts its equilibrium position by resting on a base (8) with a rectangular or similar shape, removable in several parts for a better movement, equipped with blocks of non-slip material on its entire support surface. It has an arm (9), provided with a guide (10), located orthogonally to its base, vertically, whose functionality is to hold and join the anchoring system (1) with the base (8), applying the movement to said system throughout the entire guide (10). This arm has a threaded rod held at its two ends by two cylindrical bearings integral to the shaft of the rod, thus possessing freedom of rotation. The aforementioned bearings are anchored at the ends of the arm (9), which is structurally a rectangular or similar tube, inside which the rod or guide (10) is housed and the joint that it has with the anchoring system.
El sistema de anclaje (1 ) al chasis de Ia silla, es una estructura movible con forma de "H", que puede ser desplazada a petición del usuario a Io largo de Ia guía (10) alcanzando Ia altura deseada. En el centro del sistema de anclaje se encuentra Ia tuerca de sujeción (3) que es atravesada por Ia varilla roscada. El cuerpo exterior de Ia tuerca, de forma rectangular o similar, es interior al tubo que forma Ia estructura del brazo guía, y transcurre de forma solidaria a éste al ser girada Ia varilla en alguno de sus sentidos. Lógicamente, el giro de Ia varilla central del brazo guía propone un movimiento del sistema de anclaje, ya que Ia tuerca, que permanece soldada en Ia parte central de dicho sistema, se encuentra aprisionada de giro dentro del tubo (9) del mencionado brazo.The anchoring system (1) to the chassis of the chair, is a movable structure shaped "H", which can be moved at the request of the user along the guide (10) reaching the desired height. In the center of the anchoring system is the clamping nut (3) that is crossed by the threaded rod. The outer body of the nut, rectangular or similar, is internal to the tube that forms the structure of the guide arm, and runs in solidarity with it when the rod is rotated in any of its directions. Logically, the rotation of the central rod of the guide arm proposes a movement of the anchoring system, since the nut, which remains welded in the central part of said system, is locked in the tube (9) of said arm.
El sistema de anclaje posee cuatro puntos de agarre, con el chasis de Ia silla, que se encuentran en los cuatros extremos de Ia mencionada estructura en forma de "H" (1 ), procurando así Ia perfecta unión y evitando cualquier tipo de accidente. El agarre (6) en sí se encuentra unido a Ia estructura con un eje con giro loco bloqueado en cualquier ángulo de giro mediante un tornillo prisionero. El sistema de acople que posee dicho agarre consta de dos semicircunferencias que terminan uniéndose con dos tornillos que poseen en su interior sendas muescas cuadradas, en las cuales permanecerán anclados los tubos correspondientes del chasis de Ia sillaThe anchoring system has four grip points, with the chassis of the chair, which are located at the four ends of the mentioned structure in the form of "H" (1), thus ensuring the perfect union and avoiding any type of accident. The grip (6) itself is attached to the structure with a shaft with crazy rotation locked at any angle of rotation by means of a captive screw. The coupling system that has said grip consists of two semicircles that end up joining with two screws that have inside square notches, in which the corresponding tubes of the chair chassis will remain anchored
(12).(12).
Los brazos (2) de Ia estructura en forma de "H", son extensibles y por tanto pueden acortarse en extensión en sentido horizontal (5). Así mismo, los brazos (4) son telescópicos (7), asegurándose así su extensión o acortamiento en sentido vertical, con Io cual se puede efectuar el acoplamiento a cualquier silla de ruedas existente en el mercado.The arms (2) of the structure in the form of "H", are extensible and therefore can be shortened in extension in a horizontal direction (5). Likewise, the arms (4) are telescopic (7), thus ensuring their extension or shortening in the vertical direction, with which the coupling to any wheelchair existing in the market can be carried out.
El funcionamiento del dispositivo se efectúa por medio de un motor eléctrico (11 ) con posibilidad de giro en ambos sentidos, con freno autoblocante a Ia falta de alimentación. Dicho motor está acoplado a una caja reductora que propicia una mínima velocidad de giro, además de un par motor suficiente para elevar a Ia silla. La alimentación del motor se efectúa por medio de una batería recargable. El control eléctrico o electrónico del funcionamiento de este motor y por tanto del dispositivo se realiza por medio de una consola ubicada en uno de los reposamanos de Ia silla (12), que consta de varios botones que permitan controlar los movimientos del dispositivo. The operation of the device is carried out by means of an electric motor (11) with the possibility of turning in both directions, with self-locking brake to the lack of power. Said motor is coupled to a gearbox that favors a minimum speed of rotation, in addition to a sufficient torque to raise the chair. The motor is powered by a rechargeable battery. The electrical or electronic control of the operation of this motor and therefore of the device is carried out by means of a console located in one of the armrests of the chair (12), which consists of several buttons that allow controlling the movements of the device.

Claims

REIVINDICACIONES
1.- Dispositivo elevador de sillas de ruedas, cuya función principal es conseguir situar a los usuarios de dichas sillas a alturas que no son posibles en una silla de ruedas convencional, caracterizado porque comprende una base desmontable (8), de forma rectangular o similar, que ocupa un espacio debajo del asiento de Ia silla (12) entre sus dos ruedas mayores, provista de un brazo vertical (9) que queda situado por Ia parte central-posterior del respaldo de Ia silla, dotado de una guía (10) por Ia que discurre, mediante accionamiento de un motor (11 ) situado en dicha base (8) comandado desde una consola fijada en Ia propia silla, una garra en "H" (1 ), cuyas ramas son extensibles lateral y verticalmente a fin de adaptarse a cualquier tipo de silla, que está provista en los extremos de unas bridas o medios similares de acoplamiento (6) al chasis de Ia silla, para desplazarse unido a ella una vez acoplado, manteniendo en posición de reposo Ia base de apoyo (8) por debajo del asiento de Ia misma, sin tocar el suelo, y en posición operativa de izado de Ia silla dicha base (8) apoya en el suelo y Ia garra en "H" (1 ) se sitúa en Ia zona superior del brazo vertical (9) manteniendo Ia silla en el aire para que el usuario se sitúe a una altura equivalente de una persona de pie.1.- Wheelchair lifting device, whose main function is to place the users of said chairs at heights that are not possible in a conventional wheelchair, characterized in that it comprises a removable base (8), rectangular or similar , which occupies a space under the seat of the chair (12) between its two major wheels, provided with a vertical arm (9) that is located by the central-rear part of the back of the chair, provided with a guide (10) through which, by driving a motor (11) located in said base (8) commanded from a console fixed in the chair itself, a claw in "H" (1), whose branches are laterally and vertically extensible in order to adapt to any type of chair, which is provided at the ends of some flanges or similar coupling means (6) to the chassis of the chair, to move attached to it once coupled, keeping the support base (8) in rest position ) below the seat or of the same, without touching the ground, and in operative position of raising the chair said base (8) rests on the ground and the claw in "H" (1) is located in the upper area of the vertical arm (9) keeping the chair in the air so that the user is at an equivalent height of a person standing.
2.- Dispositivo elevador de sillas de ruedas, según Ia reivindicación anterior, caracterizado porque caracterizado los medios de acoplamiento de Ia garra en "H" (1) en Ia guía (10) existente en el brazo vertical (9) presentan un cierto grado de libertad de basculamiento en sentido longitudinal con respecto a Ia silla a fin de adaptarse a cualquier modelo de chasis de silla, en conjunción con Ia posibilidad de variar Ia longitud y Ia anchura de los brazos de Ia garra en "H" (1 ). 2. Wheelchair lifting device, according to the preceding claim, characterized in that the coupling means of the claw in "H" (1) in the guide (10) existing in the vertical arm (9) have a certain degree of freedom of tilting in the longitudinal direction with respect to the chair in order to adapt to any model of chair chassis, in conjunction with the possibility of varying the length and width of the arms of the claw in "H" (1).
PCT/ES2008/070081 2007-06-06 2008-04-24 Lifting device for wheelchair WO2008148922A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200701771 2007-06-06
ES200701771A ES2358489B1 (en) 2007-06-06 2007-06-06 WHEELCHAIR ELEVATOR DEVICE.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100950561B1 (en) 2009-08-31 2010-04-01 용 최 A lifting apparatus
WO2012071518A1 (en) * 2010-11-24 2012-05-31 Katezlift, Inc. Wheel chair lift system and method

Citations (5)

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Publication number Priority date Publication date Assignee Title
US4886288A (en) * 1988-03-25 1989-12-12 Dysarz Edward D Device and method to safely elevate stabilize and lower a wheel chair
US4934723A (en) * 1988-03-25 1990-06-19 Dysarz Edward D Elevating wheel chair with safety feet
US5209322A (en) * 1991-04-01 1993-05-11 Mcmahon Robert Elevated wheelchair device
US5613697A (en) * 1994-11-18 1997-03-25 Johnson; David D. Elevatable wheelchair
US20020149168A1 (en) * 2001-04-17 2002-10-17 Brown David Keith Elevating manual wheelchair

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886288A (en) * 1988-03-25 1989-12-12 Dysarz Edward D Device and method to safely elevate stabilize and lower a wheel chair
US4934723A (en) * 1988-03-25 1990-06-19 Dysarz Edward D Elevating wheel chair with safety feet
US5209322A (en) * 1991-04-01 1993-05-11 Mcmahon Robert Elevated wheelchair device
US5613697A (en) * 1994-11-18 1997-03-25 Johnson; David D. Elevatable wheelchair
US20020149168A1 (en) * 2001-04-17 2002-10-17 Brown David Keith Elevating manual wheelchair

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100950561B1 (en) 2009-08-31 2010-04-01 용 최 A lifting apparatus
WO2012071518A1 (en) * 2010-11-24 2012-05-31 Katezlift, Inc. Wheel chair lift system and method
US9333132B2 (en) 2010-11-24 2016-05-10 Katezlift Wheelchair lift system and method

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Publication number Publication date
ES2358489B1 (en) 2012-05-11
ES2358489A1 (en) 2011-05-11

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