EP3791846A1 - Securing device for motorised loading and/or extraction of a carriage supporting a stretcher, associated receiver and ambulance - Google Patents
Securing device for motorised loading and/or extraction of a carriage supporting a stretcher, associated receiver and ambulance Download PDFInfo
- Publication number
- EP3791846A1 EP3791846A1 EP20192779.5A EP20192779A EP3791846A1 EP 3791846 A1 EP3791846 A1 EP 3791846A1 EP 20192779 A EP20192779 A EP 20192779A EP 3791846 A1 EP3791846 A1 EP 3791846A1
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- EP
- European Patent Office
- Prior art keywords
- plate
- hook
- receiver
- keeper
- trolley
- 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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- 208000023178 Musculoskeletal disease Diseases 0.000 description 2
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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
- 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
- A61G3/0218—Loading or unloading stretchers
- A61G3/0245—Loading or unloading stretchers by translating the support
Definitions
- the invention relates to a device for securing a motorized loading and / or extraction of a trolley carrying a stretcher, that is to say a device for connecting a bar of a trolley carrying a stretcher to a receiver. motorized in an ambulance.
- the invention also relates to a motorized receiver and an ambulance incorporating the stowage device.
- the invention aims more particularly to allow the automated traction of the trolley by the receiver within the ambulance.
- An ambulance is a vehicle intended in particular to receive a trolley carrying a stretcher.
- ambulances are increasingly equipped with an automated receiver configured to automatically move the trolley carrying the stretcher when the trolley is inserted or removed from the ambulance.
- the devices allowing the loading and the extraction of the carriage are generally provided with a movable arm disposed under a reception table of the carriage, as for example described in the document WO 2009/135803 .
- the kinematics of movement of the arm imposes a large spacing between the reception table and the floor of the ambulance. Due to the presence of this arm, these tie-downs are very heavy and bulky. They can be integrated in a large volume ambulance, for example hospital ambulances, but it is currently not possible to integrate this type of device in a low volume ambulance, for example private ambulances.
- the movements of the trolley are ensured by hooks, movable on the receiver, which cooperate with a bar arranged at the front end of the trolley, such as for example described in the document WO 2009/135803 .
- a device is also sought for clamping or unclamping the connection between the hooks and the bar so that the latter does not run the risk of coming out of the hooks when a patient is introduced or extracted from the ambulance.
- the strike system can be mounted on the carriage and controlled as a function of the position of a front stand of the carriage.
- the trolley cannot be disengaged from the receiver and the stretcher cannot separate the trolley from the ambulance.
- this system requires the stretcher bearer to come and manually raise the front stand when inserting the trolley into the receiver.
- the technical problem of the invention is to be able to provide a system in which the clamping of the carriage and of the receiver can be carried out automatically.
- the invention proposes to mount a keeper on the receiver at the level of one or more hooks and to control the position of the keeper directly as a function of the position of a plate carrying the at least one hook.
- the strike is formed by a strike mounted on a pivot link, so that the strike can be moved between two positions: a closed position in which the strike is positioned in front of the hook, and an open position in which the strike is not placed in front of the hook.
- the keeper is moved between the two positions by means of a link, a first end of which is connected to the keeper and a second end is connected to a pin intended to cooperate with a stop placed on the path of the plate carrying the hook. In doing so, the movements of the plate cause the pin to cooperate with the stop, and they control the opening or closing of the strike.
- the keeper is preferably closed.
- a stretcher bearer wishes to load the trolley, he moves the bar of the trolley against the strike plate, which causes a displacement of the plate carrying the hook a few centimeters. The movement of the plate makes it possible to reach a position in which the strike is open.
- the stretcher bearer then continues his effort to move the trolley over a very short distance so that the bar of the trolley enters the hook and once again moves the plate.
- This second movement of the plate has the effect of closing the strike and indicating to the loading mechanism to ensure the traction of the carriage while being assured that the strike is effectively closed.
- the platen when extracting the carriage, the platen can be disposed at an exit position in which the strike is open, automatically releasing the carriage.
- the stretcher bearer therefore only has to accompany the movement of the cart. After the stage has been moved to the output position, that is to say after a predefined time delay, the stage is moved to the loading standby position.
- the invention thus makes it possible to obtain a securing device in which it is easy to define positions in which the keeper is open or closed by placing, at the desired locations, the stop making it possible to control the position of the keeper.
- the invention makes it possible to obtain a particularly robust and compact securing device.
- the invention makes it possible to form a receiver that is lighter and more compact than the existing receivers making it possible to ensure the loading and extraction of a trolley. In doing so, the invention makes it possible to obtain a receiver which can be integrated into all types of vehicle without requiring structural modifications.
- said at least one hook is articulated on at least one axis of said plate.
- This embodiment allows the hook to be retracted into a groove of the receiver when the hook is not in use, which allows paramedics to move around the receiver without hindrance.
- the rotational mobility of the hook also allows the lashing device to adapt to several types of trolleys because the height between the bar and the wheels in the folded position is variable between several trolleys.
- the securing device may have a single hook.
- the hook is preferably placed above the plate and centered between the side edges of the plate.
- the plate is provided with at least one upright extending perpendicularly to the plate so as to maintain an axis of rotation of the hook.
- the hook may have a central recess so that the post of the plate is disposed in the central recess and the axis of rotation of the hook is fixed to the internal edges of the central recess of the hook.
- the central recess can also be configured to hold the pin and the link.
- the pin extends through a central recess of the plate so as to cooperate with one or more stops arranged under the plate.
- the front end of the hook that is to say the end opposite the axis of rotation, preferably comprises a central axis on which the keeper is mounted.
- the cooperation of the pin with a stopper generates a displacement of the rod and a movement of the keeper between the closed position and the open position as previously described.
- the securing device comprises two hooks, said hooks being interconnected by a spacer arranged above the plate.
- the spacer prevents the hooks from touching the bottom of the grooves when they are in the retracted position.
- the spacer is configured to extend above a shuttle. of the receiver so as to come to bear on this shuttle when the hooks are in the retracted position.
- said at least one hook comprises a cam, articulated on an axis, said cam being intended to cooperate with at least one stop arranged on the path of said plate; in doing so, the movements of the plate cause the cam to cooperate with said stopper to control the movement of said at least one hook around the axis.
- This embodiment makes it possible to define positions in which the hook or hooks are raised to facilitate the insertion of the bar of a carriage into the housings of the hooks.
- the movement of the hooks can be provided by a single cam / stopper assembly for moving the hooks via the spacer or by two sets of two cams and two stops.
- the pin is mounted on the link on one of the sides of the latter, opposite to the side of said link opposite said cam.
- This embodiment makes it possible to juxtapose the two stops for the pin and for the cam in each groove of the receiver.
- the plate has a U-shape in which the pads are fixed to vertical uprights of said plate.
- the U-shape allows the plate to be inserted between a shuttle and a base of a receiver.
- the pads make it possible to cooperate with a rim of the shuttle so that the plate is only movable in translation on the shuttle.
- the side uprights also form a flange for two belts. The movements of the belts thus generate the translational movement of the plate.
- the invention can be implemented with other drive means, such as a winch.
- the shuttle is moved by means of a worm driven by a motor.
- the invention relates to an ambulance comprising a receiver according to the second aspect of the invention.
- the figures 1 to 6 schematically illustrate a securing device 20a intended to provide the connection between a receiver of an ambulance and a bar of a trolley carrying a stretcher.
- the invention aims to motorize the insertion of a stretcher in an ambulance to avoid the stretcher bearers having to push or pull the stretcher for the purpose of inserting or extracting a patient in and out of an ambulance.
- the invention can be applied to different types of motorization of the movements of the stretcher in the receiver of the ambulance.
- the movements of the trolley carrying the stretcher can be ensured by a shuttle 27 moved by means of a worm 28.
- any other traction means of the trolley can be implemented without changing the invention, for example a traction by a winch.
- the invention relates more particularly to the securing device 20a making it possible to ensure the connection between the means for moving the receiver 21 of the ambulance and the bar arranged substantially at the front of a trolley carrying a stretcher (not shown). .
- the securing device 20a has two hooks 30a.
- the invention can be carried out with a single central hook.
- each hook 30a has a housing 31a intended to receive the bar of the carriage.
- the bar of the trolley is held in the housing 31a by means of a keeper 32a which closes the opening of the housing 31a and guarantees the positioning of the bar in the hooks 30a.
- the hooks 30a are articulated on an axis 40a connected to a plate 22a.
- This plate 22a is movable in translation on the receiver 21.
- the plate preferably has a "U" shape provided with two lateral uprights 24a extending in the direction of a base of the receiver 21.
- the lateral uprights 24a are intended to move in two parallel grooves 25 formed in a base of the receiver 21.
- Two belts 26 are arranged in these grooves 25 and allow the plate 22a to be moved.
- pads 23 are mounted on either side of the uprights 24a of this plate 22a and cooperate with a rim of the shuttle so that the plate is only movable in translation on the shuttle.
- These lateral uprights 24a also form a flange for each belt 26. The movements of the belts 26 thus generate the translational movement of the plate 22a.
- the belts 26 can be replaced by any type of tensioned loop mounted between two points of rotation.
- a cable whose ends are integral, can form the loop. This cable is then mounted between two pulleys.
- the cable is made of steel, aramid or polyester fibers in order to present a tension and a resistance avoiding the risk of breakage or the risk of elongation.
- any other type of transmissible mechanical action torsors can be used, such as a chain mounted between two sprockets.
- the movement of the belts 26 is controlled by the movement of the shuttle 27, so as to achieve a reduction in the travel of the plate 22a relative to the travel of the shuttle 27.
- the belts 26 have a stroke length greater than shuttle stroke length 27.
- the hooks 30a fall into the groove 25.
- a spacer 29 preferably connects the two hooks 30a to each other, so as to prevent the hooks 30a from touching the bottom of the groove 25.
- This retracted position illustrated on figure 3 , makes it possible to limit the impact of the presence of the securing device 20a when it is not used to tow a trolley.
- the receiver 21 can be used with a trolley which is not towed and which is moved manually in the groove 25 without the presence of the securing device 20a disturbing the manual movement of this trolley.
- the keeper 32a secures the bar of the trolley in each hook 30a.
- This keeper 32a is articulated on a pin 33a fixed in each hook 30a.
- a spring 39 is mounted so as to constrain the position of the keeper 32a in the closed position, that is to say in the positions illustrated on the figures 4 and 6 in which the keeper 32a blocks access to housing 31a. In doing so, the stowage of the bar of the cart in the receiver 21 of the ambulance is ensured.
- This keeper 32a is also connected to a link 34a by an attachment point 35a arranged under the axis 33a.
- This link 34a is mounted on a cam 38, itself fixed on a pin 36 mounted on the hooks 30a between the pin 40a and the pin 33a.
- This cam 38 is intended to cooperate with a stop 42 mounted in the groove 25 so as to force a rotational movement of the hooks 30a when the cam 38 rises along a slope formed on the stop 42.
- the securing device 20a is symmetrical and two stops 42 are arranged in the two grooves 25 to move the hooks 30a with two cams 38.
- the connecting rod 34a has a pin 41a disposed at one of its ends, opposite the end fixed with the keeper 32a.
- Each pin 41a is intended to cooperate with a stop 43 also provided in a groove 25.
- the link 34a is mounted against a button 37 limiting the movements in height of the link 34a and forcing this link 34a to move in translation when the stop 43 moves the pin 41a.
- the pin 41a extends opposite the cam 38 so that the stops 42 and 43 can be juxtaposed in each groove 25 to control the rotational movements of the hooks 30a or the openings of the keepers 32a.
- This method of controlling the height displacement of the hooks 30a and the opening or closing of the keeps 32a makes it possible to define the positions of the securing device 20a in which the hooks 30a are raised and the keeps 32a are open or closed.
- the plate 22a is disposed on the front end of the stops 42 and in front of the stops 43, the keeps 32a are then closed.
- a stretcher bearer wishes to load the trolley, he moves the bar of the trolley against the keepers 32a, which causes a displacement of the plate 22a carrying the hooks 30a over a few centimeters and the pins 41a rise along the stops 43.
- the displacement of the plate 22a makes it possible to reach a position, at the top of the stops 43, in which the keeps 32a are open.
- the stretcher bearer then continues his effort to move the trolley over a very short distance so that the bar of the trolley enters the hooks 30a and once again moves the plate 22a to the pulling position, illustrated on the figure. figure 4 .
- This second movement of the plate 22a has the effect of closing the keeps 32a and indicating to the loading mechanism to ensure the traction of the carriage while being assured that the keeps 32a are effectively closed.
- the hooks 30a remain in the high position since the height between the bar and the folded wheels of the trolley is fixed.
- the plate 22a is moved to the unloading position, illustrated on the figure. figure 5 , and the bar of the carriage is automatically extracted from the housings 31a.
- This embodiment described with reference to figures 1 to 6 uses two hooks 30a to make the connection between the securing device 20a and a bar of a trolley carrying a stretcher.
- only one hook 30b, 30c can be used.
- the securing device 20b consists of a single hook intended to be placed in the center of the receiver 21.
- the hook 30b is mounted on a plate 22b having lateral uprights 24b intended to guide the movements of the plate. 22b and to form a flange for the translation means of the plate 22b.
- the flange is preferably made with a part screwed into the bores 50 of the uprights 24b.
- the plate 22b also has a central opening 51 formed on the front part of the plate 22b.
- the rear part of the plate 22b is, for its part, occupied by a support part 54 making it possible to ensure the mechanical connection between the two sides of the plate 22b and to carry an axis 40b around which the hook 30b is movable.
- the hook 30b is in the form of a substantially parallelepipedal body 52 at the front end of which extends a lip 53 intended to form a housing 31b with the height of the body 52.
- the body 52 has a central avoidance making it possible to climb. the body 52 around the support part 54. More precisely, the body 52 is mounted on an axis 40b of the support part 54 so as to be movable in rotation with respect to the plate 22b.
- the hook 30b Opposite the lip 53, the hook 30b also has a keeper 32b movable between an open position and a closed position. To do this, the keeper 32b is mounted on a pin 33b fixed in the body 52. Furthermore, in this embodiment and as described with reference to figures 21 to 32 , the movements in height of the hook 30b are ensured by this axis 33b which extends on either side of the body 52 so as to cooperate with spatulas 62 of the carriage 60.
- the keep 32b and the front part of the body 52 form a housing 31b intended to receive a bar 61 of a carriage 60.
- this housing 31b also extends a counter-bearing piece 56 passing through a central slot of the body 52.
- the movements of this counter-support piece 56 are guided in a slot 57 formed in the internal part of the body 52 with a stop 58 fixed in the body 52.
- This counter-support piece 56 drives a link 34b mounted between a manual displacement axis 55 and a point of attachment 35b of the keeper 32b.
- the movements of the counter-bearing piece 56 towards the rear of the body 52 cause a movement of the keeper 32b in the closed position.
- the movements of the keeper 32b and of the rod 34b are also guided by a pin 41b extending into the central opening 51 of the plate 22b.
- This pin 41b is also fixed at the level of the stop 58 and at the level of the manual displacement axis 55.
- a stop arranged on the path of the plate 22b can enter into cooperation with the pin 41b to move the rod 34b and order the opening or closing of the strike 32b.
- the keeper 32b forms a solid support for the bar 61 so that the traction of the plate 22b can be achieved without the risk of the bar 61 being extracted from the housing 31b.
- the receiver 21 also includes at least one position in which the opening of the keeper 32b is automated. To do this, a stop is arranged opposite the pin 41b and the movements of this pin 41b induce both an opening of the keeper 32b by the connecting rod 34b, and a displacement of the counter-bearing piece 56 towards the end. front of body 52.
- manual unlocking may be required in the event of an electrical malfunction of the receiver 21.
- the manual displacement axis 55 extends outside the body 52 and makes it possible to move both the strike 32b and the counter-support piece 56, so as to manually control the extraction of the bar 61 from the housing 31b.
- the kinematics of the movement of the hook 30b is not limiting and, even in the case of a central hook, other shapes and other means of movement can be implemented.
- figures 14 to 20 illustrate another embodiment of a securing device 20c with a central hook 30c.
- This securing device 20c comprises a large number of elements similar to those described with reference to figures 7 to 13 , such as the plate 22b, the body 52, the connecting pin 40b between the plate 22b and the hook 30c, the lip 53 or else the keeper 32b and the pin 33b of this keeper 32b.
- the strike 32b of figures 14 to 20 is moved to the closed position by means of two springs 73, a first end of which is fixed on a front part of the body 52 and a second end is fixed on a pin 74 disposed at the end of the connecting rod 34c, opposite the end 35b fixed with the strike 32b.
- This axis 74 of the connecting rod 34c is constrained to move in translation in a slot 75 formed in the body 52.
- This axis 74 can also be moved by a handle 77 connected to a wheel 76, so as to impose a displacement of the axis 74 towards the rear of the body 52 to obtain manual opening of the housing 31c in the event of electrical malfunctions of the receiver 21.
- the securing devices 20b and 20c do not include means for automatically moving the hooks 30b, 30c in rotation to adapt to the height of the bar 61 of a carriage 60.
- the axis 33b of the strike 32b extends on either side of the body 52 to cooperate with spatulas 62, as illustrated on the figures 21 to 32 .
- the purpose of the spatulas 62 and to match the height of the hook 30c with the height of the bar 61 of the carriage 60 illustrate a docking approach in which cart 60 and receiver 21 are at the same height, while the figures 29 to 32 illustrate a stowage approach in which an angle of 13 ° is imposed between the cart 60 and the receiver 21.
- an ambulance it is not uncommon for an ambulance to be parked on a sloping road or for the cart to be used. with an inclination angle suitable for keeping a patient safely on the trolley. It is therefore necessary that the trolley can be inserted into the ambulance with a variation of the angle of attack of at least 10 °.
- the bar of the carriage 60 is provided with spatulas 62 mounted in rotation on the bar 61 and on either side of the zone of the bar 61 intended to be inserted into the housing 31b.
- Each spatula 62 has a “C” shape with a lower part 63 larger than the upper part 64 and a central part forming a housing 68 intended to guide the movements of the axis 33c.
- a rear part 65 of the spatula 62 is intended to cooperate with a stop 66 of the carriage 60 so as to limit the possible rotational movements of the spatula 62 around the bar 61.
- the first element which comes into contact is formed by the lower parts 63 of the spatulas 62 and the axis 33b.
- These lower parts 63 have a bias intended to drive the axis 33b in the housing 68 formed by the C-shape of each spatula 62.
- the specific shape of the spatulas 62 causes a displacement. in rotation of the hook 30c relative to the plate 22b so as to adapt the height of the bar 33b with the height of the housing 68.
- the spatulas 62 make it possible to vary the height of the hook 30c by imposing a rotation of this hook 30c relative to the plate 22b.
- the embodiments of the figures 7 to 32 do not require a pin to automatically move the height of the securing device 20b or 20c because the spatulas 62 are responsible for automatically compensating for the variations in height.
- the invention thus makes it possible to efficiently tow a trolley carrying a stretcher while ensuring the connection between the trolley and the receiver 21.
- the invention also makes it possible to define positions in which the securing device 20a-20c authorizes loading or not. and unloading from a cart.
- tie -down device 20a-20c can retract into the grooves 25 of the receiver 21 when not in use.
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Abstract
Ce dispositif d'arrimage (20a) entre un récepteur (21) et un chariot, comporte :une platine (22a) destinée à être montée mobile en translation ; etau moins un crochet (30a) monté sur ladite platine (22a).Ledit dispositif d'arrimage (20a) comporte également, au niveau dudit crochet (30a), une gâche (32a) mobile entre une position fermée et une position ouverte ;ladite gâche (32a) étant déplacée par une biellette (34a) dont une première extrémité est reliée à ladite gâche (32a) et une seconde extrémité est reliée à un pion destiné à coopérer avec au moins une butée (43) disposée sur le trajet de ladite platine (22a) de sorte que les déplacements de ladite platine (22a) entrainent une coopération dudit pion et de ladite butée (43) pour commander l'ouverture ou la fermeture de ladite gâche (32a).This securing device (20a) between a receiver (21) and a trolley, comprises: a plate (22a) intended to be mounted to move in translation; andat least one hook (30a) mounted on said plate (22a). Said lashing device (20a) also comprises, at said hook (30a), a keeper (32a) movable between a closed position and an open position; keeper (32a) being moved by a link (34a), a first end of which is connected to said keeper (32a) and a second end is connected to a pin intended to cooperate with at least one stop (43) disposed on the path of said plate (22a) so that the movements of said plate (22a) cause cooperation of said pin and said stop (43) to control the opening or closing of said keeper (32a).
Description
L'invention concerne un dispositif d'arrimage de chargement et/ou d'extraction motorisés d'un chariot portant un brancard, c'est-à-dire un dispositif permettant de lier une barre d'un chariot portant un brancard à un récepteur motorisé disposé dans une ambulance. L'invention concerne également un récepteur motorisé et une ambulance intégrant le dispositif d'arrimage.The invention relates to a device for securing a motorized loading and / or extraction of a trolley carrying a stretcher, that is to say a device for connecting a bar of a trolley carrying a stretcher to a receiver. motorized in an ambulance. The invention also relates to a motorized receiver and an ambulance incorporating the stowage device.
L'invention vise plus particulièrement à permettre la traction automatisée du chariot par le récepteur au sein de l'ambulance.The invention aims more particularly to allow the automated traction of the trolley by the receiver within the ambulance.
Une ambulance est un véhicule notamment destiné à recevoir un chariot portant un brancard. Pour limiter les troubles musculo-squelettiques des brancardiers, les ambulances sont de plus en plus fréquemment pourvues d'un récepteur automatisé configuré pour déplacer automatiquement le chariot portant le brancard lorsque le chariot est inséré ou extrait de l'ambulance.An ambulance is a vehicle intended in particular to receive a trolley carrying a stretcher. To limit musculoskeletal disorders in stretcher bearers, ambulances are increasingly equipped with an automated receiver configured to automatically move the trolley carrying the stretcher when the trolley is inserted or removed from the ambulance.
Les dispositifs permettant le chargement et l'extraction du chariot sont généralement pourvus d'un bras mobile disposé sous une table de réception du chariot, tel que par exemple décrit dans le document
D'autres dispositifs de chargement sont réalisés avec un treuil et présentent un encombrement et un poids plus réduit. Cependant, ces dispositifs ne permettent pas d'assister l'extraction du chariot et le brancardier est toujours soumis à des troubles musculo-squelettiques lors de cette phase d'extraction.Other loading devices are made with a winch and have a smaller size and weight. However, these devices do not make it possible to assist the extraction of the trolley and the stretcher bearer is still subject to musculoskeletal disorders during this extraction phase.
Quel que-soit le type de dispositif mis en œuvre, bras motorisé ou treuil, les déplacements du chariot sont assurés par des crochets, mobiles sur le récepteur, qui coopèrent avec une barre disposée à l'extrémité avant du chariot, tel que par exemple décrit dans le document
En outre, il est également recherché un dispositif pour brider ou débrider la liaison entre les crochets et la barre de sorte que cette dernière ne risque pas de s'extraire des crochets lorsqu'un malade est introduit ou extrait de l'ambulance.In addition, a device is also sought for clamping or unclamping the connection between the hooks and the bar so that the latter does not run the risk of coming out of the hooks when a patient is introduced or extracted from the ambulance.
Tel que décrit dans le document
Le problème technique de l'invention est de pouvoir fournir un système dans lequel le bridage du chariot et du récepteur peut être réalisée automatiquement.The technical problem of the invention is to be able to provide a system in which the clamping of the carriage and of the receiver can be carried out automatically.
Pour résoudre ce problème, l'invention propose de monter une gâche sur le récepteur au niveau d'un ou plusieurs crochets et de contrôler la position de la gâche directement en fonction de la position d'une platine portant l'au moins un crochet. Pour ce faire, la gâche est formée par une gâche montée sur une liaison pivot, de telle sorte que la gâche soit mobile entre deux positions : une position fermée dans laquelle la gâche est positionnée devant le crochet, et une position ouverte dans laquelle la gâche n'est pas disposée devant le crochet. La gâche est déplacée entre les deux positions au moyen d'une biellette dont une première extrémité est reliée à la gâche et une seconde extrémité est reliée à un pion destiné à coopérer avec une butée disposée sur le trajet de la platine portant le crochet. Ce faisant, les déplacements de la platine entrainent une coopération du pion avec la butée, et ils commandent l'ouverture ou la fermeture de la gâche.To solve this problem, the invention proposes to mount a keeper on the receiver at the level of one or more hooks and to control the position of the keeper directly as a function of the position of a plate carrying the at least one hook. To do this, the strike is formed by a strike mounted on a pivot link, so that the strike can be moved between two positions: a closed position in which the strike is positioned in front of the hook, and an open position in which the strike is not placed in front of the hook. The keeper is moved between the two positions by means of a link, a first end of which is connected to the keeper and a second end is connected to a pin intended to cooperate with a stop placed on the path of the plate carrying the hook. In doing so, the movements of the plate cause the pin to cooperate with the stop, and they control the opening or closing of the strike.
Il est ainsi possible de définir des positions dans lesquelles la gâche est ouverte ou fermée. Par exemple, dans une position d'attente de chargement, la gâche est préférentiellement fermée. Lorsqu'un brancardier souhaite procéder au chargement du chariot, il déplace la barre du chariot contre la gâche, ce qui entraine un déplacement de la platine portant le crochet sur quelques centimètres. Le déplacement de la platine permet d'atteindre une position dans laquelle la gâche est ouverte.It is thus possible to define positions in which the strike is open or closed. For example, in a loading standby position, the keeper is preferably closed. When a stretcher bearer wishes to load the trolley, he moves the bar of the trolley against the strike plate, which causes a displacement of the plate carrying the hook a few centimeters. The movement of the plate makes it possible to reach a position in which the strike is open.
Le brancardier continue alors son effort de déplacement du chariot sur une très faible distance afin que la barre du chariot pénètre dans le crochet et déplace une nouvelle fois la platine. Ce second déplacement de la platine a pour effet de fermer la gâche et d'indiquer au mécanisme de chargement d'assurer la traction du chariot en étant assuré que la gâche est effectivement fermée.The stretcher bearer then continues his effort to move the trolley over a very short distance so that the bar of the trolley enters the hook and once again moves the plate. This second movement of the plate has the effect of closing the strike and indicating to the loading mechanism to ensure the traction of the carriage while being assured that the strike is effectively closed.
En outre, lors de l'extraction du chariot, la platine peut être disposée au niveau d'une position de sortie dans laquelle la gâche est ouverte, libérant automatiquement le chariot. Le brancardier a donc uniquement à accompagner le mouvement du charriot. Après le déplacement de la platine au niveau de la position de sortie, c'est-à-dire après une temporisation prédéfinie, la platine est déplacée au niveau de la position d'attente de chargement.In addition, when extracting the carriage, the platen can be disposed at an exit position in which the strike is open, automatically releasing the carriage. The stretcher bearer therefore only has to accompany the movement of the cart. After the stage has been moved to the output position, that is to say after a predefined time delay, the stage is moved to the loading standby position.
A cet effet, selon un premier aspect, l'invention concerne un récepteur monté au sein d'une ambulance comprenant:
- une base présentant deux gorges parallèles entre elles ;
- une navette mobile en translation sur ladite base ; et
- un dispositif d'arrimage déplacé par ladite navette, ledit dispositif d'arrimage comprenant :
- ▪ une platine mobile en translation sur ledit récepteur de sorte à permettre un déplacement automatique dudit chariot ; la platine étant déplacée en translation par deux courroies entrainées par ladite navette de sorte à obtenir une démultiplication entre le déplacement de ladite navette et le déplacement de ladite platine ; et
- ▪ au moins un crochet monté sur ladite platine, ledit au moins un crochet comportant un logement destiné à recevoir une barre du chariot ; et
- ▪ une gâche mobile entre deux positions :
- ∘ une position fermée dans laquelle ladite gâche est positionnée devant ledit logement ; et
- ∘ une position ouverte dans laquelle ladite gâche n'est pas disposée devant ledit logement ;
- a base having two grooves parallel to each other;
- a shuttle movable in translation on said base; and
- a securing device moved by said shuttle, said securing device comprising:
- ▪ a plate movable in translation on said receiver so as to allow automatic movement of said carriage; the plate being moved in translation by two belts driven by said shuttle so as to obtain a reduction between the movement of said shuttle and the movement of said plate; and
- ▪ at least one hook mounted on said plate, said at least one hook comprising a housing intended to receive a bar of the carriage; and
- ▪ a movable strike between two positions:
- ∘ a closed position in which said strike is positioned in front of said housing; and
- ∘ an open position in which said striker is not disposed in front of said housing;
L'invention permet ainsi d'obtenir un dispositif d'arrimage dans lequel il est facile de définir des positions dans lesquelles la gâche est ouverte ou fermée en disposant, aux endroits recherchés, la butée permettant de commander la position de la gâche.The invention thus makes it possible to obtain a securing device in which it is easy to define positions in which the keeper is open or closed by placing, at the desired locations, the stop making it possible to control the position of the keeper.
En outre, l'invention permet d'obtenir un dispositif d'arrimage particulièrement robuste et compact. Ainsi, l'invention permet de former un récepteur plus léger et compact que les récepteurs existants permettant d'assurer le chargement et l'extraction d'un chariot. Ce faisant, l'invention permet d'obtenir un récepteur pouvant être intégré dans tous les types de véhicule sans nécessiter de modifications structurelles.In addition, the invention makes it possible to obtain a particularly robust and compact securing device. Thus, the invention makes it possible to form a receiver that is lighter and more compact than the existing receivers making it possible to ensure the loading and extraction of a trolley. In doing so, the invention makes it possible to obtain a receiver which can be integrated into all types of vehicle without requiring structural modifications.
Selon un mode de réalisation, ledit au moins un crochet est articulé sur au moins un axe de ladite platine. Ce mode de réalisation permet d'escamoter le crochet dans une gorge du récepteur lorsque le crochet n'est pas utilisé, ce qui permet aux ambulanciers d'évoluer sans encombre sur le récepteur. En outre, la mobilité en rotation du crochet permet également au dispositif d'arrimage de s'adapter à plusieurs types de chariot car la hauteur entre la barre et les roues dans la position repliée est variable entre plusieurs chariots.According to one embodiment, said at least one hook is articulated on at least one axis of said plate. This embodiment allows the hook to be retracted into a groove of the receiver when the hook is not in use, which allows paramedics to move around the receiver without hindrance. In addition, the rotational mobility of the hook also allows the lashing device to adapt to several types of trolleys because the height between the bar and the wheels in the folded position is variable between several trolleys.
Le dispositif d'arrimage peut comporter un seul crochet. Dans ce mode de réalisation, le crochet est préférentiellement disposé au-dessus de la platine et centré entre les bords latéraux de la platine. Pour ce faire, la platine est pourvue d'au moins un montant s'étendant perpendiculairement à la platine de sorte à maintenir un axe de rotation du crochet. Par exemple, le crochet peut présenter un évidement central de sorte que le montant de la platine soit disposé dans l'évidement central et que l'axe de rotation du crochet soit fixé sur les bords internes de l'évidement central du crochet. L'évidement central peut également être configuré pour maintenir le pion et la biellette. De préférence, le pion s'étend à travers un évidement central de la platine de sorte à coopérer avec une ou plusieurs butées disposées sous la platine. L'extrémité avant du crochet, c'est-à-dire l'extrémité opposée à l'axe de rotation, comporte préférentiellement un axe central sur lequel est monté la gâche. Dans ce mode de réalisation, la coopération du pion avec une butée engendre un déplacement de la biellette et un mouvement de la gâche entre la position fermée et la position ouverte tel que précédemment décrit.The securing device may have a single hook. In this embodiment, the hook is preferably placed above the plate and centered between the side edges of the plate. To do this, the plate is provided with at least one upright extending perpendicularly to the plate so as to maintain an axis of rotation of the hook. For example, the hook may have a central recess so that the post of the plate is disposed in the central recess and the axis of rotation of the hook is fixed to the internal edges of the central recess of the hook. The central recess can also be configured to hold the pin and the link. Preferably, the pin extends through a central recess of the plate so as to cooperate with one or more stops arranged under the plate. The front end of the hook, that is to say the end opposite the axis of rotation, preferably comprises a central axis on which the keeper is mounted. In this embodiment, the cooperation of the pin with a stopper generates a displacement of the rod and a movement of the keeper between the closed position and the open position as previously described.
En variante, le dispositif d'arrimage comporte deux crochets, lesdits crochets étant reliés entre eux par une entretoise disposée au-dessus de la platine. L'entretoise permet d'éviter que les crochets ne touchent le fond des gorges lorsqu'ils sont en position escamotée. Pour ce faire, l'entretoise est configurée pour s'étendre au-dessus d'une navette du récepteur de sorte à venir en appui sur cette navette lorsque les crochets sont en position escamotée.As a variant, the securing device comprises two hooks, said hooks being interconnected by a spacer arranged above the plate. The spacer prevents the hooks from touching the bottom of the grooves when they are in the retracted position. To do this, the spacer is configured to extend above a shuttle. of the receiver so as to come to bear on this shuttle when the hooks are in the retracted position.
De préférence, ledit au moins un crochet comporte une came, articulée sur un axe, ladite came étant destinée à coopérer avec au moins une butée disposée sur le trajet de ladite platine ; ce faisant, les déplacements de la platine entrainent une coopération de la came avec ladite butée pour commander le déplacement dudit au moins un crochet autour de l'axe. Ce mode de réalisation permet de définir des positions dans lesquelles le ou les crochets sont remontés pour faciliter l'insertion de la barre d'un chariot dans les logements des crochets. Le déplacement des crochets peut être assuré par un seul ensemble came/butée pour déplacer les crochets par l'intermédiaire de l'entretoise ou par deux ensembles de deux cames et de deux butées.Preferably, said at least one hook comprises a cam, articulated on an axis, said cam being intended to cooperate with at least one stop arranged on the path of said plate; in doing so, the movements of the plate cause the cam to cooperate with said stopper to control the movement of said at least one hook around the axis. This embodiment makes it possible to define positions in which the hook or hooks are raised to facilitate the insertion of the bar of a carriage into the housings of the hooks. The movement of the hooks can be provided by a single cam / stopper assembly for moving the hooks via the spacer or by two sets of two cams and two stops.
De préférence, le pion est monté sur la biellette sur l'un des côtés de cette dernière, opposé au côté de ladite biellette en regard de ladite came. Ce mode de réalisation permet de juxtaposer les deux butées pour le pion et pour la came dans chaque gorge du récepteur.Preferably, the pin is mounted on the link on one of the sides of the latter, opposite to the side of said link opposite said cam. This embodiment makes it possible to juxtapose the two stops for the pin and for the cam in each groove of the receiver.
Selon un mode de réalisation, la platine présente une forme de U dans laquelle des patins sont fixés sur des montants verticaux de ladite platine. Le forme de U permet d'insérer la platine entre une navette et une base d'un récepteur. Les patins permettent de coopérer avec un rebord de la navette de sorte que la platine est uniquement mobile en translation sur la navette. Les montants latéraux forment également une bride pour deux courroies. Les déplacements des courroies engendrent ainsi le déplacement en translation de la platine.According to one embodiment, the plate has a U-shape in which the pads are fixed to vertical uprights of said plate. The U-shape allows the plate to be inserted between a shuttle and a base of a receiver. The pads make it possible to cooperate with a rim of the shuttle so that the plate is only movable in translation on the shuttle. The side uprights also form a flange for two belts. The movements of the belts thus generate the translational movement of the plate.
En variante, l'invention peut être mise en œuvre avec d'autres moyens d'entrainements, tels qu'un treuil.As a variant, the invention can be implemented with other drive means, such as a winch.
De préférence, la navette est déplacée au moyen d'une vis sans fin actionnée par un moteur.Preferably, the shuttle is moved by means of a worm driven by a motor.
Selon un second aspect, l'invention concerne une ambulance comportant un récepteur selon le second aspect de l'invention.According to a second aspect, the invention relates to an ambulance comprising a receiver according to the second aspect of the invention.
D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence aux dessins annexés, dans lesquels :
- La
figure 1 illustre une vue schématique en perspective d'une étape de montage d'un dispositif d'arrimage entre un récepteur d'une ambulance et un chariot portant un brancard selon un premier mode de réalisation de l'invention ; - La
figure 2 est une vue schématique en perspective éclatée du dispositif d'arrimage de lafigure 1 ; - La
figure 3 est une vue schématique en perspective du dispositif d'arrimage de lafigure 1 monté sur un récepteur et disposé dans une position escamotée ; - La
figure 4 est une vue schématique en perspective du dispositif d'arrimage de lafigure 1 dans une position de traction ; - La
figure 5 est une vue schématique en perspective du dispositif d'arrimage de lafigure 1 dans une position de déchargement ; - La
figure 6 est une vue schématique en perspective du dispositif d'arrimage de lafigure 1 dans une position de charge ; - La
figure 7 est une vue schématique en perspective d'un dispositif s'arrimage selon un second mode de réalisation de l'invention ; - La
figure 8 est une vue schématique en section du dispositif de lafigure 7 dans une position d'attente de chargement ; - La
figure 9 est une vue schématique en section du dispositif de lafigure 7 dans une première position de liaison entre une barre d'un charriot et un logement du dispositif de lafigure 7 ; - La
figure 10 est une vue schématique en section du dispositif de lafigure 7 dans une seconde position de liaison entre une barre d'un charriot et un logement du dispositif de lafigure 7 ; - La
figure 11 est une vue schématique en section du dispositif de lafigure 7 dans une troisième position de liaison entre une barre d'un charriot et un logement du dispositif de lafigure 7 ; - La
figure 12 est une vue schématique en section du dispositif de lafigure 7 dans une quatrième position de liaison entre une barre d'un charriot et un logement du dispositif de lafigure 7 ; - La
figure 13 est une vue schématique en section du dispositif de lafigure 7 dans une cinquième position de liaison entre une barre d'un charriot et un logement du dispositif de lafigure 7 ; - La
figure 14 est schématique une vue en perspective d'un dispositif s'arrimage selon un troisième mode de réalisation de l'invention ; - La
figure 15 est une vue schématique en section du dispositif de lafigure 14 dans une position fermée ; - La
figure 16 est une vue schématique en section du dispositif de lafigure 14 dans une position ouverte ; - La
figure 17 est une vue schématique de dessus du dispositif de lafigure 14 dans la position ouverte ; - La
figure 18 est une vue schématique en perspective du dispositif de lafigure 14 en position ouverte ; - La
figure 19 est une vue schématique de dessus du dispositif de lafigure 14 en position fermée ; - La
figure 20 est une vue schématique en perspective du dispositif de lafigure 14 dans la position fermée ; - La
figure 21 est une vue schématique en perspective de trois-quarts du dispositif de lafigure 14 arrimé avec un charriot ; - La
figure 22 est une vue schématique en perspective de dessous du dispositif de lafigure 14 arrimé avec un charriot ; - La
figure 23 est une schématique vue en section du dispositif de lafigure 14 dans une première position de liaison avec une barre d'un charriot sans différence de hauteur ; - La
figure 24 est une vue schématique en section du dispositif de lafigure 14 dans une deuxième position de liaison avec une barre d'un charriot sans différence de hauteur ; - La
figure 25 est une vue schématique en section du dispositif de lafigure 14 dans une troisième position de liaison avec une barre d'un charriot sans différence de hauteur ; - La
figure 26 est une vue schématique en section du dispositif de lafigure 14 dans une quatrième position de liaison avec une barre d'un charriot sans différence de hauteur ; - La
figure 27 est une vue schématique en section du dispositif de lafigure 14 dans une cinquième position de liaison avec une barre d'un charriot sans différence de hauteur ; - La
figure 28 est une vue schématique en section du dispositif de lafigure 14 dans une sixième position de liaison avec une barre d'un charriot sans différence de hauteur ; - La
figure 29 est une vue schématique en section du dispositif de lafigure 14 dans une première position de liaison avec une barre d'un charriot avec différence de hauteur ; - La
figure 30 est une vue schématique en section du dispositif de lafigure 14 dans une deuxième position de liaison avec une barre d'un charriot avec différence de hauteur ; - La
figure 31 est une vue schématique en section du dispositif de lafigure 14 dans une troisième position de liaison avec une barre d'un charriot avec différence de hauteur ; - La
figure 32 est une vue schématique en section du dispositif de lafigure 14 dans une quatrième position de liaison avec une barre d'un charriot avec différence de hauteur.
- The
figure 1 illustrates a schematic perspective view of an assembly step of a device for securing between a receiver of an ambulance and a trolley carrying a stretcher according to a first embodiment of the invention; - The
figure 2 is a schematic exploded perspective view of the securing device of thefigure 1 ; - The
figure 3 is a schematic perspective view of the securing device of thefigure 1 mounted on a receiver and disposed in a retracted position; - The
figure 4 is a schematic perspective view of the securing device of thefigure 1 in a pull position; - The
figure 5 is a schematic perspective view of the securing device of thefigure 1 in an unloading position; - The
figure 6 is a schematic perspective view of the securing device of thefigure 1 in a load position; - The
figure 7 is a schematic perspective view of a docking device according to a second embodiment of the invention; - The
figure 8 is a schematic sectional view of the device of thefigure 7 in a loading waiting position; - The
figure 9 is a schematic sectional view of the device of thefigure 7 in a first connection position between a bar of a trolley and a housing of the device of thefigure 7 ; - The
figure 10 is a schematic sectional view of the device of thefigure 7 in a second connection position between a bar of a trolley and a housing of the device of thefigure 7 ; - The
figure 11 is a schematic sectional view of the device of thefigure 7 in a third connection position between a bar of a trolley and a housing of the device of thefigure 7 ; - The
figure 12 is a schematic sectional view of the device of thefigure 7 in a fourth position of connection between a bar of a trolley and a housing of the device of thefigure 7 ; - The
figure 13 is a schematic sectional view of the device of thefigure 7 in a fifth connection position between a bar of a trolley and a housing of the device of thefigure 7 ; - The
figure 14 is a schematic perspective view of a docking device according to a third embodiment of the invention; - The
figure 15 is a schematic sectional view of the device of thefigure 14 in a closed position; - The
figure 16 is a schematic sectional view of the device of thefigure 14 in an open position; - The
figure 17 is a schematic top view of the device of thefigure 14 in the open position; - The
figure 18 is a schematic perspective view of the device of thefigure 14 in open position; - The
figure 19 is a schematic top view of the device of thefigure 14 in closed position; - The
figure 20 is a schematic perspective view of the device of thefigure 14 in the closed position; - The
figure 21 is a schematic three-quarter perspective view of the device of thefigure 14 stowed with a cart; - The
figure 22 is a schematic perspective view from below of the device of thefigure 14 stowed with a cart; - The
figure 23 is a schematic sectional view of the device of thefigure 14 in a first position of connection with a bar of a trolley without difference in height; - The
figure 24 is a schematic sectional view of the device of thefigure 14 in a second position of connection with a bar of a carriage without difference in height; - The
figure 25 is a schematic sectional view of the device of thefigure 14 in a third position of connection with a bar of a trolley without difference in height; - The
figure 26 is a schematic sectional view of the device of thefigure 14 in a fourth position of connection with a bar of a carriage without difference in height; - The
figure 27 is a schematic sectional view of the device of thefigure 14 in a fifth position of connection with a bar of a carriage without difference in height; - The
figure 28 is a schematic sectional view of the device of thefigure 14 in a sixth position of connection with a bar of a carriage without difference in height; - The
figure 29 is a schematic sectional view of the device of thefigure 14 in a first position of connection with a bar of a trolley with difference in height; - The
figure 30 is a schematic sectional view of the device of thefigure 14 in a second position of connection with a bar of a trolley with difference in height; - The
figure 31 is a schematic sectional view of the device of thefigure 14 in a third position of connection with a bar of a trolley with difference in height; - The
figure 32 is a schematic sectional view of the device of thefigure 14 in a fourth position of connection with a bar of a carriage with difference in height.
Les
L'invention peut s'appliquer à différents types de motorisation des déplacements du brancard dans le récepteur de l'ambulance. Tel qu'illustré sur la
L'invention concerne plus particulièrement le dispositif d'arrimage 20a permettant d'assurer la liaison entre les moyens de déplacement du récepteur 21 de l'ambulance et la barre disposée sensiblement à l'avant d'un chariot portant un brancard (non représenté). Pour assurer la liaison entre cette barre et le récepteur 21, tel qu'illustré sur les
Une extrémité de chaque crochet 30a présente un logement 31a destiné à réceptionner la barre du chariot. Lorsque le chariot est tracté sur le récepteur 21, la barre du chariot est maintenue dans le logement 31a au moyen d'une gâche 32a qui vient obturer l'ouverture du logement 31a et garantir le positionnement de la barre dans les crochets 30a. One end of each
Les crochets 30a sont articulés sur un axe 40a relié à une platine 22a. Cette platine 22a est mobile en translation sur le récepteur 21. Pour ce faire, la platine présente préférentiellement une forme de « U » munie de deux montants latéraux 24a s'étendant en direction d'une base du récepteur 21. Les montants latéraux 24a sont destinés à se déplacer dans deux gorges 25 parallèles formées dans une base du récepteur 21. Deux courroies 26 sont disposées dans ces gorges 25 et permettent de déplacer la platine 22a. Pour ce faire, des patins 23 sont montés de part et d'autres des montants 24a de cette platine 22a et coopèrent avec un rebord de la navette de sorte que la platine est uniquement mobile en translation sur la navette. Ces montants latéraux 24a forment également une bride pour chaque courroie 26. Les déplacements des courroies 26 engendrent ainsi le déplacement en translation de la platine 22a. The
En variante, les courroies 26 peuvent être remplacées par tout type de boucles tendues montées entre deux points de rotation. Par exemple, un câble dont les extrémités sont solidaires, peut former la boucle. Ce câble est alors monté entre deux poulies. De préférence, le câble est réalisé en fibres d'acier, d'aramide ou de polyester afin de présenter une tension et une résistance évitant le risque de rupture ou le risque d'allongement. En outre, tout autre type de torseurs d'actions mécaniques transmissibles peut être utilisé, tel qu'une chaîne montée entre deux pignons.As a variant, the
De préférence, le déplacement des courroies 26 est commandé par le déplacement de la navette 27, de sorte à réaliser une démultiplication de la course de la platine 22a par rapport à la course de la navette 27. Pour ce faire, les courroies 26 présentent une longueur de course supérieure à la longueur de course de la navette 27. Preferably, the movement of the
Tel qu'illustré sur la
Dans la cas d'un chariot dont la traction est automatisée, la gâche 32a assure la fixation de la barre du chariot dans chaque crochet 30a. Cette gâche 32a est articulée sur un axe 33a fixé dans chaque crochet 30a. Sur cet axe 33a, un ressort 39 est monté de sorte à contraindre la position de la gâche 32a en position fermée, c'est-à-dire dans les positions illustrées sur les
Cette came 38 est destinée à coopérer avec une butée 42 montée dans la gorge 25 de sorte à contraindre un déplacement en rotation des crochets 30a lorsque la came 38 monte le long d'une pente ménagée sur la butée 42. Dans l'exemple des
L'ouverture ou la fermeture de la gâche 32 est commandée par la biellette 34a. Pour ce faire, la biellette 34a présente un pion 41a disposé à l'une de ses extrémités, opposée à l'extrémité fixée avec la gâche 32a. Chaque pion 41a est destiné à coopérer avec une butée 43 également ménagée dans une gorge 25. The opening or closing of the
Pour ce faire, la biellette 34a est montée contre un bouton 37 limitant les déplacements en hauteur de la biellette 34a et contraignant cette biellette 34a à se déplacer en translation lorsque la butée 43 déplace le pion 41a. To do this, the link 34a is mounted against a
Lorsque le pion 41a entre au contact avec la butée 43a, et que la platine 22a est déplacée vers l'avant du récepteur 21, la biellette 34a déplace la gâche 32a et ouvre le logement 31a pour permettre l'insertion d'une barre d'un chariot portant un brancard.When the
Le pion 41a s'étend à l'opposé de la came 38 si bien que les butées 42 et 43 peuvent être juxtaposées dans chaque gorge 25 pour commander les déplacements en rotation des crochets 30a ou l'ouvertures des gâches 32a. The
Ce mode de commande du déplacement en hauteur des crochets 30a et d'ouverture ou de fermeture des gâches 32a permet de définir des positions du dispositif d'arrimage 20a dans lesquelles les crochets 30a sont relevés et les gâches 32a sont ouvertes ou fermées.This method of controlling the height displacement of the
Il est ainsi possible de définir des positions dans lesquelles la gâche est ouverte ou fermée. Par exemple, dans une position d'attente de chargement, non illustrée, la platine 22a est disposée sur l'extrémité avant des butées 42 et devant les butées 43, les gâches 32a sont alors fermées. Lorsqu'un brancardier souhaite procéder au chargement du chariot, il déplace la barre du chariot contre les gâches 32a, ce qui entraine un déplacement de la platine 22a portant les crochets 30a sur quelques centimètres et les pions 41a montent le long des butées 43. Le déplacement de la platine 22a permet d'atteindre une position, en haut des butées 43, dans laquelle les gâches 32a sont ouvertes.It is thus possible to define positions in which the strike is open or closed. For example, in a loading waiting position, not shown, the
Le brancardier continue alors son effort de déplacement du chariot sur une très faible distance afin que la barre du chariot pénètre dans les crochets 30a et déplace une nouvelle fois la platine 22a jusqu'à la position de traction, illustrée sur la
Ainsi, tel qu'illustré sur la
A l'inverse, lorsqu'un brancardier souhaite extraire un chariot du récepteur, la platine 22a est déplacée jusqu'à la position de déchargement, illustrée sur la
En effet, dans cette position de déchargement, les pions 41a coopèrent avec les butées 43 pour ouvrir les gâches 32a. Indeed, in this unloading position, the
Ce mode de réalisation décrit en référence aux
Dans le mode de réalisation des
La platine 22b présente également une ouverture centrale 51 formée sur la partie avant de la platine 22b. La partie arrière de la platine 22b est, quant à elle, occupée par une pièce de support 54 permettant d'assurer la liaison mécanique entre les deux côtés de la platine 22b et de porter un axe 40b autour duquel le crochet 30b est mobile. Le crochet 30b se présente sous la forme d'un corps 52 sensiblement parallélépipédique à l'extrémité avant duquel s'étend une lèvre 53 destinée à former un logement 31b avec la hauteur du corps 52. Le corps 52 présent un évitement central permettant de monter le corps 52 autour de la pièce de support 54. Plus précisément, le corps 52 est monté sur un axe 40b de la pièce de support 54 de sorte à être mobile en rotation par rapport à la platine 22b. The
En regard de la lèvre 53, le crochet 30b présente également une gâche 32b mobile entre une position ouverte et une position fermée. Pour ce faire, la gâche 32b est montée sur un axe 33b fixé dans le corps 52. En outre, dans ce mode de réalisation et tel que décrit en référence aux
La gâche 32b et la partie avant du corps 52 forment un logement 31b destiné à recevoir une barre 61 d'un chariot 60. En outre, dans ce logement 31b, s'étend également une pièce de contre-appui 56 traversant une lumière centrale du corps 52. Les déplacements de cette pièce de contre-appui 56 sont guidés dans une lumière 57 ménagée dans la partie interne du corps 52 avec une butée 58 fixée dans le corps 52. Ainsi, les déplacements de cette pièce de contre-appui 56 sont autorisés uniquement dans la longueur du corps 52. Cette pièce de contre-appui 56 entraîne une biellette 34b montée entre un axe de déplacement manuel 55 et un point de fixation 35b de la gâche 32b. Ainsi, les déplacements de la pièce de contre-appui 56 vers l'arrière du corps 52 entraînent un déplacement de la gâche 32b dans la position fermée.The keep 32b and the front part of the
Les déplacements de la gâche 32b et de la biellette 34b sont également guidés par un pion 41b s'étendant dans l'ouverture centrale 51 de la platine 22b. Ce pion 41b est également fixé au niveau de la butée 58 et au niveau de l'axe de déplacement manuel 55. Ainsi, une butée disposée sur le trajet de la platine 22b peut entrer en coopération avec le pion 41b pour déplacer la biellette 34b et commander l'ouverture ou la fermeture de la gâche 32b. The movements of the
Tel qu'illustré sur les
Ainsi, dans la position illustrée sur la
En outre, un déverrouillage manuel peut être requis en cas de dysfonctionnement électrique du récepteur 21. Pour ce faire, l'axe de déplacement manuel 55 s'étend à l'extérieur du corps 52 et permet de déplacer à la fois la gâche 32b et la pièce de contre-appui 56, de sorte à commander manuellement l'extraction de la barre 61 du logement 31b. In addition, manual unlocking may be required in the event of an electrical malfunction of the
Bien entendu, la cinématique du déplacement du crochet 30b n'est pas limitative et, même dans le cas d'un crochet central, d'autres formes et d'autres moyens de déplacement peuvent être mis en œuvre.Of course, the kinematics of the movement of the
Par exemple, les
La différence avec le mode de réalisation des
Contrairement à l'utilisation d'une pièce de contre-appui 56, tel qu'illustré sur les
Cet axe 74 de la biellette 34c est contraint en déplacement en translation dans une lumière 75 ménagée dans le corps 52. Cet axe 74 peut également être déplacé par une poignée 77 reliée à une roue 76, de sorte à imposer un déplacement de l'axe 74 vers l'arrière du corps 52 pour obtenir une ouverture manuelle du logement 31c en cas de dysfonctionnements électriques du récepteur 21. This
Dans ces deux modes de réalisation illustrés aux
Tel qu'illustré sur les
Tel qu'illustré sur la
Même dans le cas d'une différence d'angle entre le récepteur 21 et le chariot 60, les spatules 62 permettent de faire varier la hauteur du crochet 30c en imposant une rotation de ce crochet 30c par rapport à la platine 22b. Ainsi, lorsque le chariot 60 n'est pas à la même hauteur que le récepteur 21, les modes de réalisation des
L'invention permet ainsi de tracter efficacement un chariot portant un brancard tout en assurant la liaison entre le chariot et le récepteur 21. L'invention permet également de définir des positions dans lesquelles le dispositif d'arrimage 20a-20c autorise ou non le chargement et le déchargement d'un chariot.The invention thus makes it possible to efficiently tow a trolley carrying a stretcher while ensuring the connection between the trolley and the
En outre, le dispositif d'arrimage 20a-20c peut s'effacer dans les gorges 25 du récepteur 21 lorsqu'il n'est pas utilisé.In addition, the tie -
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1910157A FR3100712A1 (en) | 2019-09-13 | 2019-09-13 | MOTORIZED LOADING AND / OR EXTRACTION SECURING DEVICE OF A TROLLEY CARRYING A STRETCHER, RECEIVER AND ASSOCIATED AMBULANCE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3791846A1 true EP3791846A1 (en) | 2021-03-17 |
EP3791846B1 EP3791846B1 (en) | 2021-12-29 |
Family
ID=69104652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20192779.5A Active EP3791846B1 (en) | 2019-09-13 | 2020-08-26 | Securing device for motorised loading and/or extraction of a carriage supporting a stretcher, associated receiver and ambulance |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3791846B1 (en) |
ES (1) | ES2904777T3 (en) |
FR (1) | FR3100712A1 (en) |
PT (1) | PT3791846T (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019028194A1 (en) * | 2017-08-01 | 2019-02-07 | Austin Lulit Power Lift Systems, Inc. | Power lift |
US11896535B1 (en) | 2018-04-23 | 2024-02-13 | Uriah S. Akers, Jr. | Power lift |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009135803A1 (en) | 2008-05-08 | 2009-11-12 | Stem S.R.L. | A stretcher and a patient transport system |
EP2974704A1 (en) * | 2014-07-17 | 2016-01-20 | Groupe GIFA | Stretcher transport vehicle with a boarding assistance device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60033064T2 (en) * | 2000-10-27 | 2007-11-15 | Stryker Corp., Kalamazoo | HOLDING DEVICE FOR A TRANSPORT LIEGE |
EP1768634B1 (en) * | 2004-06-30 | 2013-05-01 | Ferno-Washington, Inc. | Combination cot loading and fastening system |
US8308212B2 (en) * | 2007-07-06 | 2012-11-13 | Ferno-Washington, Inc. | Cot fastening system |
-
2019
- 2019-09-13 FR FR1910157A patent/FR3100712A1/en not_active Withdrawn
-
2020
- 2020-08-26 PT PT201927795T patent/PT3791846T/en unknown
- 2020-08-26 EP EP20192779.5A patent/EP3791846B1/en active Active
- 2020-08-26 ES ES20192779T patent/ES2904777T3/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009135803A1 (en) | 2008-05-08 | 2009-11-12 | Stem S.R.L. | A stretcher and a patient transport system |
EP2974704A1 (en) * | 2014-07-17 | 2016-01-20 | Groupe GIFA | Stretcher transport vehicle with a boarding assistance device |
Also Published As
Publication number | Publication date |
---|---|
EP3791846B1 (en) | 2021-12-29 |
ES2904777T3 (en) | 2022-04-06 |
PT3791846T (en) | 2022-01-11 |
FR3100712A1 (en) | 2021-03-19 |
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