EP2705817A1 - Evacuation chair with adjustment of the seat portion - Google Patents
Evacuation chair with adjustment of the seat portion Download PDFInfo
- Publication number
- EP2705817A1 EP2705817A1 EP13182866.7A EP13182866A EP2705817A1 EP 2705817 A1 EP2705817 A1 EP 2705817A1 EP 13182866 A EP13182866 A EP 13182866A EP 2705817 A1 EP2705817 A1 EP 2705817A1
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- EP
- European Patent Office
- Prior art keywords
- frame
- chair
- caterpillar
- seat support
- locking
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
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- 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
- A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
- A61G5/066—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps with endless belts
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- 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
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
- A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
- A61G5/085—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction folding up and down, e.g. reducing or expanding the overall height of the wheelchair
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- 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
- A61G5/1056—Arrangements for adjusting the seat
- A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards
Definitions
- the invention relates to an evacuation chair for evacuating a person.
- It relates more particularly to an evacuation chair that can move on flat surfaces such as floor, sidewalk and the like, but also to go up or down steps, stairs or ramps.
- the evacuation chair according to the invention is intended particularly, but not exclusively, for persons or structures likely to rescue people such as firefighters, the SMUR hospitals, emergency services or infirmaries of companies or public buildings as well as medical facilities dealing with people with mobility difficulties.
- Escape chairs are distinguished from conventional wheelchairs by the fact that they generally comprise two rolling bases: a first wheel base formed of wheels to allow the movement of the chair on a "classic" floor (floor, etc.) and a second rolling base formed of two crawler belts to allow movement of the chair on a non-planar surface (stairs, steps, etc.).
- the machine comprises a mechanism for lifting the machine and moving the track system in a vertical movement to bring it into contact with the ground, the crawler system replacing the wheel system and vice versa.
- the machine further comprises a connection mechanism with connecting rods and levers connecting the seat to the mechanism for the substitution of the systems relative to each other while changing the positioning of the seat.
- the evacuation chair described in the aforementioned patent application has a complex connecting mechanism. It is also heavy and bulky.
- the invention aims to remedy these problems by providing a simplified structure of evacuation chair, more compact and lighter while maintaining an adjustment of the position of the seat according to the bearing base used (wheels or belts -CHENILLES).
- the invention proposes an evacuation chair adapted to move on a flat surface and a non-planar surface such as a staircase comprising a seat support mounted on a frame and comprising two side assemblies, each comprising a first and a second amount mounted hinged relative to each other on the one hand and the frame on the other hand, one of the uprights being further slidably mounted along the frame, a seat member hingedly connected to the seat support, a set of wheels on which the frame is mounted so as to form a first rolling base, a set of crawler-belts connected to the frame to form a second rolling base for the movement of the evacuation chair on a non-flat surface, the set of crawler straps being movably mounted relative to the frame between a passive position and a use position in which the frame mble-caterpillar tracks replaces the first rolling base, and means for moving the caterpillar-belt assembly from its passive position to its position of use, and vice versa, said means being coupled to the seat support.
- the movement of the seat support on the frame is coupled to the movement of the caterpillar-belt assembly, thereby conditioning the position of the cradle. seat member relative to the support at the position in which the set of caterpillar belts is located.
- the positioning of the seat member is indexed to the position of the second rolling base relative to the first base.
- the frame comprises two side rails each forming a slide, the uprights of each lateral assembly being slidably mounted on the frame via a cross member extending between the slideways, the crossbar forming the moving means. of the caterpillar-belt assembly from one position to another.
- the set of caterpillar belts is pivotally mounted on the frame about a transverse pivot axis between its passive position in which the crawler system is inclined with respect to the plane of the first rolling base and its position of use in the track-belt assembly is substantially parallel to the running surface of the first base.
- the set of caterpillar belts is held in a passive position by means of return means.
- the set of caterpillar-belts In order to ensure an elevation of the first rolling base when the set of caterpillar-belts is in the use position, it can be provided to offset the transverse pivot axis connecting the set of caterpillar-belts to the frame of the axis. wheels of the first rolling base.
- the evacuation chair comprises locking means of the seat support on the frame adapted to block the seat support in a first seating position for moving the evacuation chair on a flat surface and in a second seating position for moving the evacuation chair on a non-planar surface.
- the locking means comprise a locking arm pivotally mounted on the chassis around a transverse pivot axis so as to pass from a locking position in which the locking arm is arranged in a substantially parallel plane. to that of the chassis to a release position in which the locking arm is inclined relative to the chassis.
- the locking arm comprises a first and a second groove for positioning and locking the cross member in a position determined relative to the frame, the first groove being arranged to lock the cross member in a position corresponding to the first seating position. of the support, the second groove being arranged to block the cross member in a position corresponding to the second seating position of the support.
- the locking arm comprises a third groove arranged to lock the cross member in a position corresponding to a storage position of the seat support.
- the evacuation chair comprises return means arranged to maintain the locking arm in its locking position.
- an evacuation chair 1 adapted to move on a flat surface such as a floor, a floor, etc., and a non-planar surface such as a staircase, steps and the like.
- the evacuation chair 1 comprises a seat support 2 mounted on a frame, a seat member 3 mounted hinged to the seat support 2 and locking means 7 of the seat support 2 adapted to block the support of sitting in a first sitting position when the evacuation chair 1 is moved on a flat surface and in a second sitting position when the evacuation chair 1 is moved on a non-removable surface. plane. The transition from one to the other of these positions will be described later.
- first position by “flat seat position”
- the second position by "non-plane seat position”.
- the evacuation chair 1 further comprises a set of wheels 50, 51 for rolling on the flat floor, said wheels being mounted on the frame 4 to form a first rolling base 5.
- the set of wheels comprises two wheels 50 mounted at the rear of the frame 4 via fixing plates and two wheels 51 mounted free to rotate about an axis perpendicular to the plane of the frame 4 at the front of the latter.
- the rollers 51 are each provided with a locking latch for blocking their rotational movement.
- the evacuation chair 1 also comprises a set of caterpillar belts 6 intended to roll on a non-flat surface, the caterpillar-belt unit being connected to the chassis to form a second rolling base.
- the seat support 2 comprises two first uprights 20a, 20b parallel to each other, which are slidably mounted at their lower end along the frame 4 in the longitudinal direction of the latter, their upper end being connected. between it by at least one spacer 23 forming a handle.
- the seat support 2 further comprises second amounts forming spacers 21a, 21b, each spacer being hingedly connected firstly to one of the first uprights 20a, 20b of the seat support 2 and other 4.
- the spacers 21a, 21b are connected to the first uprights 20a, 20b and to the chassis 4 by means of fixing plates.
- the evacuation chair 1 comprises a cross member 80 connecting the lower ends of the first uprights 20a, 20b between them.
- the cross member 80 forms displacement means 8 of the caterpillar-belt assembly 6 from one position to the other.
- the seat element 3 is hingedly mounted on the uprights 20a, 20b of the seat support 2. More particularly, in the example illustrated, the seat element 3 is articulated around each hinge point connecting the first amounts concerned 20a, 20b with the spacers 21a, 21b associated.
- the chassis 4 comprises two side rails 40a, 40b each forming a slideway. More particularly, each lateral spar 40a, 40b has a sliding slot 41a, 41b extending over all or part of the length of the side members 40a, 40b.
- the sliding slots 41a, 41b of each of the side members 40a, 40b are arranged facing each other. In the example shown, the sliding slot 41a, 41b opens on either side of the side faces of the side members 40a, 40b.
- the two side members 40a, 40b are interconnected by two cross members 42, 43, one being disposed at the front and the other at the rear.
- the two side members 40a, 40b are arranged to receive the cross member 80 connecting the first uprights 20a, 20b of the seat support 2.
- the sliding slots 41a, 41b and the cross member 80 are sized to allow the sliding of the crossbar in said sliding slots 41a, 41b.
- the set of caterpillar belts 6 comprises meanwhile two pairs of carrier plates 60a, 60b, each pair of carrier plates being connected at each of its ends by a track pulley 61a, 61b, the assembly thus consisting of plates carriers and pulleys being surrounded by a chenille belt 63a, 63b.
- the pairs of carrier plates 60a, 60b are connected by a spacer 64 located at the front of the evacuation chair 1.
- the set of caterpillar belts 6 is movably mounted relative to the frame 4 to allow the passage from a passive position to a position of use in which the caterpillar-belt assembly 6 is substituted for the first rolling base 5.
- the set of caterpillar belts 6 is hingedly mounted on the rear part of the frame 4 about a transverse pivot axis A2, while it is integrally connected to the front part of the frame 2 by means of return means, for example one or more spring (s), which are arranged to maintain the front portion of the track belt assembly 6 near the frame 4).
- the return means 9 comprise a spring 90 connected by one of its ends to the inner face of one of the carrier plates 60a, 60b (in the example illustrated the carrier plate 60), at the axis of the crawler pulley 62b and at the other end thereof to the strut 64 ( figure 1 ).
- the spring 90 is arranged to extend in a plane substantially perpendicular to the spacer 64.
- the set of caterpillar belts 6 is kept inclined with respect to the plane of the first rolling base 5, ie. compared to the chassis provided with wheels as shown on the figures 3 , 5 and 6 while in the position of use, the set of caterpillar belts 6 is substantially parallel to the rolling plane of the first base as illustrated in FIGS. figures 4 , 7 and 8 .
- the pairs of carrier plates 60a, 60b are arranged between them at a distance less than the distance separating the two side rails 40a, 40b of the chassis so that the second rolling base is inserted into the first rolling base.
- the evacuation chair further comprises means for moving the caterpillar-belt assembly from its passive position to its position of use, and conversely, said means being coupled to the seat support 2 and arranged with the belt assembly. 6 during the passage from the flat seating position to the non-planar seating position, the moving means jointly drives the entire caterpillar-belts from its passive position to its position of use.
- the displacement means comprise the cross member 80 connecting the lower ends of the first uprights of the seat support 2.
- the locking means of the seat support 2 on the frame 4 comprise a locking arm 7 formed by two symmetrical side plates 73a, 73b connected by two spacers 74, 75, one connecting the front ends of the side plates, the other connecting the rear ends of the side plates.
- each side plate 73a, 73b comprises grooves for positioning and locking the cross member in a determined position during the movement of the seat support 2 relative to the frame 4.
- the grooves of each side plate 73a, 73b are arranged symmetrically. with the grooves of the plate arranged vis-à-vis.
- the locking arm comprises three sets of positioning and locking grooves 70, 71, 72.
- the first series formed of the grooves 70 being arranged to lock the seat support 2 in the flat seating position ( figure 3 and figure 5 ), the second series formed of the grooves 71 arranged to lock the seat support 2 in the non-planar seating position ( figure 4 and figure 8 ), the third series formed grooves 72 arranged to lock the seat support in a storage position as illustrated on the figure 9 .
- the locking arm 7 is pivotally mounted on the frame 4 about a transverse pivot axis A3 to thereby pass from a locking position in which the locking arm 7 is disposed in a plane substantially parallel to the frame 4 ( figures 4 , 5 , 8 ) at a release position in which the locking arm 7 is inclined ( figures 3 , 6 , 7 ), the front end being raised, and vice versa.
- the pivot connection is made in the rear part of the frame near the transverse pivoting axes of the caterpillar-belt assembly and that of the support relative to the frame.
- the three transverse pivoting axes provided at the rear of the frame are distinct. It could of course be provided common pivot axes without departing from the scope of the invention.
- return means such as for example one or more springs, are arranged to hold the locking arm 7 in its locking position.
- return means such as for example one or more springs, are arranged to hold the locking arm 7 in its locking position.
- return means such as for example one or more springs, are arranged to hold the locking arm 7 in its locking position.
- the Figures 5 to 8 illustrate the passage of the evacuation chair arranged in flat surface rolling mode to a non-planar surface running mode.
- the set of caterpillar belts 6 is positioned in its so-called passive position in which the front part of the caterpillar-belt assembly is raised, the latter being the seat support 2, meanwhile, is locked in its flat seating position by the locking arm 7 placed in its locking position, the cross member 80 being retained in the first positioning grooves 70 of the locking arm 7 ( figure 5 ).
- the locking arm 7 is placed in the release position by pressing the spacer 75.
- the locking arm 7 pivots around the pivot axis A3, its front part rising to release the cross member 80 of the seat support 2 ( figure 6 ).
- the cross member 80 slides along the longitudinal members 40a, 40b, in the slots 41a , 41b, up to the level of the second positioning grooves 71 of the locking arm 7.
- the cross-member 80 comes into contact with the part of the set of caterpillar-belts 6 arranged opposite said slots, causing in its movement the caterpillar-belt assembly towards its position of use by pressing on the caterpillar belts 63a, 63b.
- the use position is then reached when the crosspiece comes in contact with the second positioning grooves 71 ( figure 7 ).
- the pressure exerted on the spacer 75 is released, the locking arm 7 then resuming its blocking position thanks to the return spring placed between the spacer 75 and the frame 2.
- the support 2 is then locked in its non-planar seating position by the locking arm 7, the cross-member 80 being retained in the second positioning grooves 71 of the locking arm ( figure 8 ).
- the evacuation chair is described above in an implementation according to the two modes of rolling (rolling on the surface and rolling on non-planar surface). It is of course obvious that the evacuation chair can be used in only one or other of the rolling modes.
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Abstract
Description
L'invention concerne une chaise d'évacuation pour évacuer une personne.The invention relates to an evacuation chair for evacuating a person.
Elle concerne plus particulièrement une chaise d'évacuation pouvant se déplacer sur des surfaces planes telles que plancher, trottoir et similaire, mais également de monter ou de descendre des marches, des escaliers ou des rampes.It relates more particularly to an evacuation chair that can move on flat surfaces such as floor, sidewalk and the like, but also to go up or down steps, stairs or ramps.
La chaise d'évacuation selon l'invention est destinée notamment, mais non exclusivement, aux personnes ou structures susceptibles de secourir des personnes telles que les pompiers, le SMUR des hôpitaux, les services de secours ou les infirmeries d'entreprises ou de bâtiments publics ainsi qu'à des structures médicalisées s'occupant de personnes présentant des difficultés de mobilité.The evacuation chair according to the invention is intended particularly, but not exclusively, for persons or structures likely to rescue people such as firefighters, the SMUR hospitals, emergency services or infirmaries of companies or public buildings as well as medical facilities dealing with people with mobility difficulties.
En cas de situation d'urgence dans un bâtiment, comme par exemple lors d'un incendie, les escaliers sont utilisés pour l'évacuation d'urgence, même en présence d'un ascenseur, pour des raisons de sécurité et d'un point de vue réglementaire.In the event of an emergency situation in a building, such as during a fire, the stairs are used for emergency evacuation, even in the presence of an elevator, for security reasons and a point regulatory perspective.
Afin de permettre une évacuation rapide et sécurisée des personnes présentes dans un bâtiment dans lequel intervient une situation d'urgence, et en particulier les personnes nécessitant de l'aide pour descendre les escaliers du fait des circonstances ou bien les personnes à mobilité réduite, il a été développé le concept de chaises d'évacuation.In order to allow a rapid and secure evacuation of the persons present in a building in which an emergency situation occurs, and in particular the persons requiring assistance to descend the stairs because of the circumstances or the persons with reduced mobility, was developed the concept of evacuation chairs.
Les chaises d'évacuation se distinguent des chaises roulantes classique par le fait qu'elles comportent en général deux embases roulantes : une première embase roulante formée de roues pour permettre le déplacement de la chaise sur un sol « classique » (plancher, etc.) et une deuxième embase roulante formée de deux courroies-chenilles pour permettre le déplacement de la chaise sur une surface non plane (escaliers, marches, etc.).Escape chairs are distinguished from conventional wheelchairs by the fact that they generally comprise two rolling bases: a first wheel base formed of wheels to allow the movement of the chair on a "classic" floor (floor, etc.) and a second rolling base formed of two crawler belts to allow movement of the chair on a non-planar surface (stairs, steps, etc.).
Parmi les chaises d'évacuation développées, il est connu de la demande
La chaise d'évacuation décrite dans la demande de brevet susmentionnée présente cependant un mécanisme de liaison complexe. Elle est en outre lourde et encombrante.The evacuation chair described in the aforementioned patent application, however, has a complex connecting mechanism. It is also heavy and bulky.
L'invention vise à remédier à ces problèmes en proposant une chaise d'évacuation de structure simplifiée, plus compacte et plus légère tout en conservant un ajustement de la position de l'assise en fonction de l'embase de roulement utilisée (roues ou courroies-chenilles).The invention aims to remedy these problems by providing a simplified structure of evacuation chair, more compact and lighter while maintaining an adjustment of the position of the seat according to the bearing base used (wheels or belts -CHENILLES).
A cet effet, et selon un premier aspect, l'invention propose une chaise d'évacuation apte à se déplacer sur une surface plane et une surface non plane telle qu'un escalier comprenant une support d'assise monté sur un châssis et comprenant deux ensembles latéraux, chacun comportant un premier et un deuxième montant montés articulés l'un par rapport à l'autre d'une part et sur le châssis d'autre part, l'un des montants étant en outre monté coulissant le long du châssis, un élément d'assise relié de manière articulé au support d'assise, un ensemble de roues sur lequel est monté le châssis de sorte à former une première embase roulante, un ensemble de courroies-chenilles relié au châssis pour constituer une deuxième embase roulante destinée au déplacement de la chaise d'évacuation sur une surface non plane, l'ensemble de courroies-chenilles étant monté mobile par rapport au châssis entre une position passive et une position d'utilisation dans laquelle l'ensemble courroies-chenilles se substitue à la première embase roulante, et des moyens de déplacement de l'ensemble courroies-chenille de sa position passive à sa position d'utilisation, et inversement, lesdits moyens étant couplés au support d'assise.For this purpose, and according to a first aspect, the invention proposes an evacuation chair adapted to move on a flat surface and a non-planar surface such as a staircase comprising a seat support mounted on a frame and comprising two side assemblies, each comprising a first and a second amount mounted hinged relative to each other on the one hand and the frame on the other hand, one of the uprights being further slidably mounted along the frame, a seat member hingedly connected to the seat support, a set of wheels on which the frame is mounted so as to form a first rolling base, a set of crawler-belts connected to the frame to form a second rolling base for the movement of the evacuation chair on a non-flat surface, the set of crawler straps being movably mounted relative to the frame between a passive position and a use position in which the frame mble-caterpillar tracks replaces the first rolling base, and means for moving the caterpillar-belt assembly from its passive position to its position of use, and vice versa, said means being coupled to the seat support.
Ainsi, en couplant les moyens de déplacement de l'ensemble courroies-chenilles au support d'assise, le mouvement du support d'assise sur le châssis est couplé au mouvement de l'ensemble courroies-chenilles, conditionnant ainsi la position de l'élément d'assise par rapport au support à la position dans laquelle se trouve l'ensemble courroies-chenilles. Ainsi, le positionnement de l'élément d'assise est indexé sur la position de la deuxième embase roulante par rapport à la première embase.Thus, by coupling the means of displacement of the caterpillar-belt assembly to the seat support, the movement of the seat support on the frame is coupled to the movement of the caterpillar-belt assembly, thereby conditioning the position of the cradle. seat member relative to the support at the position in which the set of caterpillar belts is located. Thus, the positioning of the seat member is indexed to the position of the second rolling base relative to the first base.
Selon une configuration particulière, le châssis comporte deux longerons latéraux formant chacun une glissière, les montants de chaque ensemble latéral étant montés coulissant sur le châssis par l'intermédiaire d'une traverse s'étendant entre les glissières, la traverse formant les moyens de déplacement de l'ensemble courroies-chenille d'une position à l'autre.According to a particular configuration, the frame comprises two side rails each forming a slide, the uprights of each lateral assembly being slidably mounted on the frame via a cross member extending between the slideways, the crossbar forming the moving means. of the caterpillar-belt assembly from one position to another.
Avantageusement, l'ensemble courroies-chenilles est monté pivotant sur le châssis autour d'un axe de pivotement transversal entre sa position passive dans laquelle le système de chenille est incliné par rapport au plan de la première embase roulante et sa position d'utilisation dans laquelle l'ensemble courroies-chenilles est sensiblement parallèle au plan de roulement de la première embase.Advantageously, the set of caterpillar belts is pivotally mounted on the frame about a transverse pivot axis between its passive position in which the crawler system is inclined with respect to the plane of the first rolling base and its position of use in the track-belt assembly is substantially parallel to the running surface of the first base.
Avantageusement, l'ensemble courroies-chenilles est maintenu en position passive par l'intermédiaire de moyens de rappel.Advantageously, the set of caterpillar belts is held in a passive position by means of return means.
Afin d'assurer une surélévation de la première embase roulante lorsque l'ensemble courroies-chenilles est en position d'utilisation, il peut être prévu de décaler l'axe de pivotement transversal reliant l'ensemble courroies-chenilles au châssis de l'axe des roues de la premières embase roulante.In order to ensure an elevation of the first rolling base when the set of caterpillar-belts is in the use position, it can be provided to offset the transverse pivot axis connecting the set of caterpillar-belts to the frame of the axis. wheels of the first rolling base.
Avantageusement, la chaise d'évacuation comporte des moyens de blocage du support d'assise sur le châssis aptes à bloquer le support d'assise dans une première position d'assise pour le déplacement de la chaise d'évacuation sur une surface plane et dans une deuxième position d'assise pour le déplacement de la chaise d'évacuation sur une surface non plane.Advantageously, the evacuation chair comprises locking means of the seat support on the frame adapted to block the seat support in a first seating position for moving the evacuation chair on a flat surface and in a second seating position for moving the evacuation chair on a non-planar surface.
Selon une configuration particulière, les moyens de blocage comportent un bras de blocage monté pivotant sur le châssis autour d'un axe de pivotement transversal de sorte à passer d'une position de blocage dans laquelle le bras de blocage est disposé dans un plan sensiblement parallèle à celui du châssis à une position de libération dans laquelle le bras de blocage est incliné par rapport au châssis.According to a particular configuration, the locking means comprise a locking arm pivotally mounted on the chassis around a transverse pivot axis so as to pass from a locking position in which the locking arm is arranged in a substantially parallel plane. to that of the chassis to a release position in which the locking arm is inclined relative to the chassis.
Avantageusement, le bras de blocage comporte une première et une deuxième gorges de positionnement et de blocage de la traverse dans une position déterminée par rapport au châssis, la première gorge étant agencée pour bloquer la traverse dans une position correspondant à la première position d'assise du support, la deuxième gorge étant agencée pour bloquer la traverse dans une position correspondant à la deuxième position d'assise du support.Advantageously, the locking arm comprises a first and a second groove for positioning and locking the cross member in a position determined relative to the frame, the first groove being arranged to lock the cross member in a position corresponding to the first seating position. of the support, the second groove being arranged to block the cross member in a position corresponding to the second seating position of the support.
Il peut être également prévu que le bras de blocage comporte une troisième gorge agencée pour bloquer la traverse dans une position correspondant à une position de rangement du support d'assise.It may also be provided that the locking arm comprises a third groove arranged to lock the cross member in a position corresponding to a storage position of the seat support.
Avantageusement, la chaise d'évacuation comporte des moyens de rappel agencés pour maintenir le bras de blocage dans sa position de blocage.Advantageously, the evacuation chair comprises return means arranged to maintain the locking arm in its locking position.
D'autres objets et avantages de l'invention apparaîtront au cours de la description qui suit, faite en référence aux dessins annexés, dans lesquels :
- la
figure 1 représente une vue en perspective de dessus d'une chaise d'évacuation selon l'invention ; - la
figure 2 représente une vue éclatée de la chaise de lafigure 1 ; - les
figures 3 et 4 représentent une vue de côté de la chaise d'évacuation de lafigure 1 , respectivement en position d'assise plane et en position d'assise non plane ; - les
figures 4 à 8 illustre le mouvement mis en oeuvre des éléments constitutifs de la chaise d'évacuation de lafigure 1 lors du passage de la position d'assise plane à la position d'assise non plane, la chaise d'évacuation étant vue de l'intérieur; - La
figure 9 représente la chaise d'évacuation de lafigure 1 en position de rangement (repliée).
- the
figure 1 represents a perspective view from above of an evacuation chair according to the invention; - the
figure 2 represents an exploded view of the chair of thefigure 1 ; - the
Figures 3 and 4 represent a side view of the evacuation chair from thefigure 1 respectively in a flat seating position and in a non-planar seating position; - the
Figures 4 to 8 illustrates the movement implemented of the constituent elements of the chair evacuation of thefigure 1 when moving from the flat seating position to the non-flat sitting position, the evacuation chair being viewed from the inside; - The
figure 9 represents the evacuation chair of thefigure 1 in storage position (folded).
Pour plus de clarté, les éléments identiques ou similaires des différents modes de réalisation sont repérés par des signes de référence identiques sur l'ensemble des figures.For the sake of clarity, identical or similar elements of the various embodiments are marked with identical reference signs throughout the figures.
En relation avec les
La chaise d'évacuation 1 comporte un support d'assise 2 monté sur un châssis, un élément d'assise 3 monté articulé sur le support d'assise 2 et des moyens de blocage 7 du support d'assise 2 aptes à bloquer le support d'assise dans une première position d'assise lors d'un déplacement de la chaise d'évacuation 1 sur une surface plane et dans une deuxième position d'assise lors d'un déplacement de la chaise d'évacuation 1 sur une surface non plane. Le passage de l'une à l'autre de ces positions sera décrit plus loin. Afin de simplifier la lecture de ce qui suit, on nommera la première position par « position d'assise plane » et la deuxième position par « position d'assise non plane ».The evacuation chair 1 comprises a
La chaise d'évacuation 1 comporte en outre un ensemble de roues 50, 51 destinées à rouler sur le sol plan, lesdites roues étant montées sur le châssis 4 pour constituer une première embase roulante 5. L'ensemble de roues comporte deux roues 50 montées à l'arrière du châssis 4 via des platines de fixation et deux roulettes 51 montées libres en rotation autour d'un axe perpendiculaire au plan du châssis 4 à l'avant de ce dernier. Avantageusement, les roulettes 51 sont pourvues chacune d'un loquet de verrouillage permettant de bloquer leur mouvement de rotation.The evacuation chair 1 further comprises a set of
La chaise d'évacuation 1 comporte également un ensemble de courroies-chenilles 6 destinées à rouler sur une surface non plane, l'ensemble courroies-chenilles étant relié au châssis pour constituer une deuxième embase roulante.The evacuation chair 1 also comprises a set of
Dans le mode de réalisation décrit, le support d'assise 2 comporte deux premiers montants 20a, 20b parallèles entre eux, lesquels sont montés coulissants par leur extrémité inférieure le long du châssis 4 suivant la direction longitudinale de ce dernier, leur extrémité supérieure étant reliée entre elle par au moins une entretoise 23 formant poignée.In the embodiment described, the
Le support d'assise 2 comporte en outre des deuxièmes montants formant des entretoises 21a, 21b, chaque entretoise étant reliée de manière articulée d'une part à l'un des premiers montants 20a, 20b du support d'assise 2 et d'autre part au châssis 4. Dans l'exemple illustré, les entretoises 21a, 21b sont reliées aux premiers montants 20a, 20b et au châssis 4 par l'intermédiaire de platines de fixation.The
Avantageusement, la chaise d'évacuation 1 comporte une traverse 80 reliant les extrémités inférieures des premiers montants 20a, 20b entre eux. Comme on le verra plus loin, la traverse 80 forme des moyens de déplacement 8 de l'ensemble courroies-chenille 6 d'une position à l'autre.Advantageously, the evacuation chair 1 comprises a
L'élément d'assise 3 est monté articulé sur les montants 20a, 20b du support d'assise 2. Plus particulièrement, dans l'exemple illustré, l'élément d'assise 3 est monté articulé autour de chaque point d'articulation reliant les premiers montants concernés 20a, 20b avec les entretoises 21a, 21b associées.The
Avantageusement, le châssis 4 comporte deux longerons latéraux 40a, 40b formant chacun une glissière. Plus particulièrement, chaque longeron latéral 40a, 40b comporte une fente de glissement 41a, 41b s'étendant sur tout ou partie de la longueur des longerons latéraux 40a, 40b. Les fentes de glissement 41a, 41b de chacun des longerons latéraux 40a, 40b sont disposées en vis-à-vis l'une de l'autre. Dans l'exemple illustré, la fente de glissement 41a, 41b débouche de part et d'autre des faces latérales des longerons latéraux 40a, 40b.Advantageously, the
Les deux longerons latéraux 40a, 40b sont reliés entre eux par deux traverses 42, 43, l'une étant disposée en partie avant et l'autre en partie arrière.The two
Les deux longerons latéraux 40a, 40b sont agencées pour recevoir la traverse 80 reliant les premiers montants 20a, 20b du support d'assise 2. A cet effet, les fentes de glissement 41a, 41b et la traverse 80 sont dimensionnées pour permettre le coulissement de la traverse dans lesdites fentes de glissement 41a, 41b.The two
L'ensemble courroies-chenilles 6 comporte quant à lui deux paires de plaques porteuses 60a, 60b, chaque paire de plaques porteuses étant reliée au niveau de chacune de ses extrémités par une poulie-chenille 61a, 61b, l'ensemble ainsi constitué de plaques porteuses et de poulies-chenilles étant entouré par une courroie chenille 63a, 63b. Les paires de plaques porteuses 60a, 60b sont reliées par une entretoise 64 située en partie avant de la chaise d'évacuation 1.The set of
L'ensemble courroies-chenilles 6 est monté mobile par rapport au châssis 4 pour permettre le passage d'une position passive à une position d'utilisation dans laquelle l'ensemble courroies-chenilles 6 vient se substituer à la première embase roulante 5.The set of
Dans le monde de réalisation décrit, l'ensemble courroies-chenilles 6 est monté articulé sur la partie arrière du châssis 4 autour d'un axe de pivotement transversal A2, tandis qu'il est relié de manière solidaire à la partie avant du châssis 2 par l'intermédiaire de moyens de rappel, par exemple un ou plusieurs ressort(s), lesquels sont agencés pour maintenir la partie avant de l'ensemble courroies chenilles 6 à proximité du châssis 4). Dans le mode de réalisation décrit, les moyens de rappel 9 comportent un ressort 90 relié par l'une de ses extrémités à la face interne de l'une des plaques porteuses 60a, 60b (dans l'exemple illustré la plaque porteuse 60), au niveau de l'axe de la poulie chenille 62b et par l'autre de ses extrémités à l'entretoise 64 (
Ainsi, en position passive, l'ensemble courroies-chenilles 6 est maintenu incliné par rapport au plan de la première embase roulante 5, ie. par rapport au châssis pourvu de roues comme illustré sur les
Afin de permettre un léger surélèvement de l'ensemble des roues de la première embase roulante 5 lors du passage en position d'utilisation de l'ensemble courroies-chenilles 6, il est prévu que l'axe des poulies-chenilles arrières de l'ensemble courroies-chenilles 6 soit décalé légèrement vers le bas par rapport à l'axe des roues 50, 51 de la première embase roulante 5.In order to allow a slight raising of all the wheels of the
Les paires de plaques porteuses 60a, 60b sont disposées entre elles à une distance inférieure à la distance séparant les deux longerons latéraux 40a, 40b du châssis de sorte que la deuxième embase roulante s'insère dans la première embase roulante.The pairs of
La chaise d'évacuation comporte en outre des moyens de déplacement de l'ensemble courroies-chenille de sa position passive à sa position d'utilisation, et inversement, lesdits moyens étant couplés au support d'assise 2 et agencés avec l'ensemble courroies-chenilles 6 pour que, lors du passage de la position d'assise plane à la position d'assise non plane, les moyens de déplacement entraine conjointement l'ensemble courroies-chenilles de sa position passive à sa position d'utilisation. Dans l'exemple illustré, les moyens de déplacement comportent la traverse 80 reliant les extrémités inférieures des premiers montants du support d'assise 2.The evacuation chair further comprises means for moving the caterpillar-belt assembly from its passive position to its position of use, and conversely, said means being coupled to the
Avantageusement, les moyens de blocage du support d'assise 2 sur le châssis 4 comportent un bras de blocage 7 formé par deux plaques latérales 73a, 73b symétriques reliées par deux entretoises 74, 75, l'une reliant les extrémités avants des plaques latérales, l'autre reliant les extrémités arrières des plaque latérales.Advantageously, the locking means of the
Avantageusement, chaque plaque latérale 73a, 73b comporte des gorges de positionnement et de blocage de la traverse dans une position déterminée lors du mouvement du support d'assise 2 par rapport au châssis 4. Les gorges de chaque plaque latérales 73a, 73b sont disposées symétriquement avec les gorges de la plaque disposée en vis-à-vis. Dans l'exemple illustré, le bras de blocage comporte trois séries de gorges de positionnement et blocage 70, 71, 72. La première serie formée des gorges 70 étant agencée pour bloquer le support d'assise 2 dans la position d'assise plane (
Le bras de blocage 7 est monté pivotant sur le châssis 4 autour d'un axe de pivotement transversal A3 pour passer ainsi d'une position de blocage dans laquelle le bras de blocage 7 est disposé dans un plan sensiblement parallèle au châssis 4 (
La liaison pivot est réalisée en partie arrière du châssis à proximité des axes de pivotement transversaux de l'ensemble courroies-chenilles et celui du support par rapport au châssis. Dans l'exemple illustré, les trois axes de pivotements transversaux prévus à l'arrière du châssis sont distincts. Il pourrait bien entendu être prévu des axes de pivotement communs sans pour autant sortir du cadre de l'invention.The pivot connection is made in the rear part of the frame near the transverse pivoting axes of the caterpillar-belt assembly and that of the support relative to the frame. In the example shown, the three transverse pivoting axes provided at the rear of the frame are distinct. It could of course be provided common pivot axes without departing from the scope of the invention.
Avantageusement, des moyens de rappel, comme par exemple un ou plusieurs ressorts, sont agencés de manière à maintenir le bras de blocage 7 dans sa position de blocage. A cet effet, il est prévu par exemple au moins un ressort reliant le châssis 4 et l'extrémité arrière du bras de blocage 7 de manière à exercer une force sur le bras de blocage pour le maintenir dans la position de blocage.Advantageously, return means, such as for example one or more springs, are arranged to hold the
Les
La chaise d'évacuation est décrite précédemment dans une mise en oeuvre selon les deux modes de roulement (roulement sur surface place et roulement sur surface non plane). Il est bien entendu évident que la chaise d'évacuation pourra être utilisée dans seulement l'un ou l'autre des modes de roulement.The evacuation chair is described above in an implementation according to the two modes of rolling (rolling on the surface and rolling on non-planar surface). It is of course obvious that the evacuation chair can be used in only one or other of the rolling modes.
L'invention est décrite dans ce qui précède à titre d'exemple. Il est entendu que l'homme du métier est à même de réaliser différentes variantes de réalisation de l'invention sans pour autant sortir du cadre de l'invention.The invention is described in the foregoing by way of example. It is understood that the skilled person is able to achieve different embodiments of the invention without departing from the scope of the invention.
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1258379A FR2995208B1 (en) | 2012-09-07 | 2012-09-07 | EVACUATION CHAIR WITH SEAT ADJUSTMENT |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2705817A1 true EP2705817A1 (en) | 2014-03-12 |
Family
ID=47356070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13182866.7A Withdrawn EP2705817A1 (en) | 2012-09-07 | 2013-09-03 | Evacuation chair with adjustment of the seat portion |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2705817A1 (en) |
FR (1) | FR2995208B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114126563A (en) * | 2019-07-23 | 2022-03-01 | 科尔本公司 | Device for lifting and transporting a person |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2538245A1 (en) * | 1982-12-28 | 1984-06-29 | Sunwa Sharyo Mfg Co | EMERGENCY TRANSPORT DEVICE FOR SICK |
FR2540061A1 (en) | 1983-01-25 | 1984-08-03 | Pagett Jeffery | ROLLING MACHINE SUCH AS THE SEAT FOR HANDICAP |
US20030116927A1 (en) * | 2001-12-11 | 2003-06-26 | Quigg Robert T. | Stair-climbing wheelchair |
-
2012
- 2012-09-07 FR FR1258379A patent/FR2995208B1/en active Active
-
2013
- 2013-09-03 EP EP13182866.7A patent/EP2705817A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2538245A1 (en) * | 1982-12-28 | 1984-06-29 | Sunwa Sharyo Mfg Co | EMERGENCY TRANSPORT DEVICE FOR SICK |
FR2540061A1 (en) | 1983-01-25 | 1984-08-03 | Pagett Jeffery | ROLLING MACHINE SUCH AS THE SEAT FOR HANDICAP |
US20030116927A1 (en) * | 2001-12-11 | 2003-06-26 | Quigg Robert T. | Stair-climbing wheelchair |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114126563A (en) * | 2019-07-23 | 2022-03-01 | 科尔本公司 | Device for lifting and transporting a person |
Also Published As
Publication number | Publication date |
---|---|
FR2995208B1 (en) | 2015-06-19 |
FR2995208A1 (en) | 2014-03-14 |
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