EP3804684B1 - Ensemble de levage - Google Patents

Ensemble de levage Download PDF

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Publication number
EP3804684B1
EP3804684B1 EP20199178.3A EP20199178A EP3804684B1 EP 3804684 B1 EP3804684 B1 EP 3804684B1 EP 20199178 A EP20199178 A EP 20199178A EP 3804684 B1 EP3804684 B1 EP 3804684B1
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EP
European Patent Office
Prior art keywords
linear actuator
pair
ground
lifting assembly
stabilising
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EP20199178.3A
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German (de)
English (en)
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EP3804684A1 (fr
Inventor
Samuel Thompson
Benjamin Ambrose
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Drive Devilbiss Healthcare Ltd
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Drive Devilbiss Healthcare Ltd
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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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • 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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/012—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame raising or lowering of the whole mattress frame

Definitions

  • the present invention relates to a lifting assembly for a bed, such as a care bed used in hospitals, care homes and a home care environment.
  • a low bed designed to place the patient as close to the floor as possible has a limited range of travel, which then presents a risk to carers due to the maximum platform height being too low/unsuitable for a carer to treat the patient.
  • Conventional care beds achieve height adjustment by a mechanism placed underneath the mattress platform. Height adjustment may be achieved by hydraulic or electronic linear actuators placed under the mattress platform such as in the system described in US3739406A . Actuators under the mattress platform in certain arrangements around a central pivot can also be used to tilt or angle the platform (see US3900906A ).
  • a main disadvantage of these mechanisms is their limited range of movement. The fixed components of the mechanism are under the platform and thus prevent lowering of the platform all the way to ground level. A greater range of movement requires longer linear actuators which increases the minimum height achievable.
  • US2018116884A discloses a lifting mechanism for a care bed which consists of a telescopic linear actuator mounted at an end of the bed which raises and lowers a headboard.
  • a mattress platform is slidably mounted to the headboard and may be lifted up relative to the headboard by a pulley system. This system therefore allows the mattress platform to be lowered to ground level by retracting the telescopic linear actuator to lower the headboard and then sliding the mattress platform to the lowest point on the headboard.
  • bedding and other articles may jam the pulley system and over time the ingress of dirt and debris may damage the pulleys.
  • the mattress platform changes position relative to the headboard. When the mattress is in a fully raised position there is minimal headboard available and this system does not therefore offer adequate head/back support and presents a potential risk of falls, due to the limited height of the head/foot board above the mattress.
  • CH 712 857 A2 Another lifting mechanism for a care bed is disclosed in CH 712 857 A2 .
  • the present invention seeks to provide a lifting assembly for a care bed which is capable of adjusting the height of a mattress platform across a wide vertical range from a fully lowered position adjacent the ground to a fully raised position.
  • the fully raised position may be greater than 800 mm above the ground.
  • the height of the mattress platform and the care bed can therefore be adjusted to suit requirements such as when moving patients in and out of bed or providing treatment, thus minimising the risk of falling or discomfort to patients or care staff.
  • the present invention also seeks to provide a lifting assembly which maintains the head and foot boards at the same height relative to the mattress platform over the entire range of vertical movement. This ensures that adequate safety is provided for the patient when the mattress platform is at any height.
  • the present invention provides a lifting assembly for a care bed comprising: a first end frame positioned at a head end of the assembly; a second end frame positioned at a foot end of the assembly, wherein each of the first end frame and the second end frame has an upper portion and a ground-engaging lower portion and is configured such that a vertical separation distance between the upper portion and the ground-engaging lower portion is adjustable; a mattress platform extending longitudinally between and connected to the upper portion of the first end frame and the upper portion of the second end frame; at least one actuator mechanism mounted on at least the first or second end frame; wherein the actuator mechanism has a first telescopic linear actuator and a second telescopic linear actuator, the first telescopic linear actuator having a first elongate housing and a first elongate rod slidably received in the first elongate housing and linearly extendable over a first stroke length between a retracted position and an extended position relative to the first elongate housing and the second telesco
  • reference to the 'sum' of the stroke lengths encompasses an arrangement in which the first and second actuators are oppositely positioned such that the elongate rod of the first actuator extends upwardly from the first housing and the second elongate rod of the second actuator extends downwardly from the second housing. It also encompasses an arrangement in which the first and second actuators both extend from their respective housings in the same direction but are vertically offset.
  • the telescopic linear actuators may be driven by any suitable means such as hydraulics, pneumatics or electronics. Preferably the telescopic linear actuators are electronically driven.
  • a maximum vertical separation distance between the upper portion and the ground-engaging lower portion may be the combination and sum of the first stroke length and the second stroke length. This may be achieved by orientating the first and second actuators in opposed position such that one actuator operates upwardly and the alternate actuator operates downwardly (with regard to telescopic extension). Additionally, the maximum vertical separation distance may be achieved by arranging the first and second linear actuators in a vertically offset configuration to avoid an overlap of the two elongate rods. This is advantageous as it maximises the range of vertical separation for a given size of linear actuator.
  • the upper portion may have a pair of transversely spaced apart leg housing tubes and the ground-engaging lower portion may have a pair of transversely spaced apart legs telescopically mounted respectively in the pair of leg housing tubes.
  • the actuator mechanisms act as the main load bearers for the upper portion
  • the legs provide extra support to the upper portion and prevent lateral deviation of the upper portion during vertical movement. They also define the corners of the assembly which may assist when positioning the assembly around other items of furniture and keeping the space underneath the mattress platform free from obstructions to permit lowering.
  • the spaced apart leg housing tubes and the spaced apart legs of the respective upper portion and ground-engaging lower portion may be parallel with respect to one another.
  • the leg housing tubes on the upper portion may provide a suitable attachment point for side rails which may run longitudinally and parallel to the mattress platform between the two end frames to provide additional protection against a patient falling from the care bed.
  • the first telescopic linear actuator may be rigidly connected to the second telescopic linear actuator by a first pair of stabilising rams and a second pair of stabilising rams.
  • Such rams may be mounted rigidly together in an offset side-by-side arrangement.
  • the stabilising rams reduce the load on the actuators, which may prolong the life of the actuators and reduce the risk of malfunction.
  • the stabilising rams also limit lateral movement of the actuator mechanism during vertical displacement.
  • Each stabilising ram may have a ram housing and a shaft received within the ram housing which is linearly extendable and retractable relative to the ram housing.
  • a distal end of each of the first pair of stabilising rams may be coupled to the upper portion and a distal end of each of the second pair of stabilising rams is coupled to the ground-engaging lower portion.
  • the distal end is the end of the linearly extendable shaft furthest from the ram housing.
  • the ram housings of the first and second pairs are positioned adjacent each other and mounted rigidly together with the shafts extending in opposite vertical directions.
  • a lower support brace may be fixed transversely between the first pair of stabilising rams and an upper support brace may be fixed transversely between the second pair of stabilising rams. This creates a rigid structure consisting of the first and second pairs of ram housings and the lower and upper support braces.
  • a lower end of the first elongate housing of the first telescopic linear actuator may be attached to the lower support brace and an upper end of the second elongate housing of the second telescopic linear actuator may be attached to the upper support brace.
  • the first telescopic linear actuator and the second telescopic linear actuator may be transversely spaced apart.
  • the first and second linear actuators may be vertically offset such that an uppermost end and/or a lowermost end of each respective housing may be to different position in the vertical height direction relative to the alternate linear actuator.
  • first and second linear actuators are arranged to extend and retract vertically in opposite directions.
  • first and second linear actuators are arranged to extend and retract vertically in opposite directions
  • a distal end of the first elongate rod may be connected to the upper portion and a distal end of the second elongate rod may be connected to the ground-engaging lower portion.
  • the distal end of the first elongate rod may be connected directly to the upper portion or may be connected to an upper transverse rail which is itself connected to the upper portion.
  • the distal end of the second elongate rod may be connected directly to the ground engaging lower portion or may be connected to a lower transverse rail which is itself connected to the ground engaging lower portion.
  • upper and lower transverse rails allows the entire actuator mechanism (including the distal ends of the shafts and elongate rods) to be attached and removed from the upper portion and ground engaging lower portions as a single unit. This enables easy replacement of the actuator mechanism or disassembly for transportation.
  • the first pair of ram housings may have at least one fastener for fastening a cover board to protect the actuator mechanism.
  • the fastener may be any suitable fastener such as a clip or a threaded hole suitable for receiving a bolt or screw.
  • the cover board advantageously prevents or limits the ingress of foreign objects into the actuator mechanism which may cause the mechanism to stick or become damaged.
  • the cover board is preferably removable to allow servicing or replacement of the actuator mechanism.
  • the first telescopic linear actuator is operable independently from the second linear actuator.
  • the second linear actuator may be temporarily disabled in a fully extended position for patients who do not require the care bed to be lowered to a fully lowered position in contact with the ground.
  • the linear actuators may be controllable with foot pedals positioned at one or both ends of the assembly. Alternatively the linear actuators may be controlled by an electronic control panel mounted on or near the assembly. The linear actuators may be controlled via a computer operating software designed to enable a user to manipulate the positions of one or multiple care beds.
  • a length the first elongate housing and the first elongate rod is greater than a length of second elongate housing and the second elongate rod such that the first stroke length is greater than or equal to the second stroke length.
  • the first linear actuator may be used to adjust the position of the mattress platform across a normal range, with the second linear actuator being usable to lower the mattress platform below the normal range down to ground level.
  • the normal range may be defined as a mattress platform height above ground of between slightly under 400 mm and slightly above 800 mm.
  • the present actuating mechanism and care bed arrangement is configured to lower the mattress platform towards ground level to provide a separation distance of less than 100 mm.
  • this minimum clearance above ground may be in a range 50 mm to 100 mm.
  • the mattress platform is connected to the upper portion of the first end frame and the upper portion of the second end frame via angled connectors. This ensures that the mattress platform can be lowered into contact with the ground.
  • the at least one actuator mechanism comprises a first actuator mechanism mounted on the first end frame and a second actuator mechanism mounted on the second end frame.
  • the first and second actuator mechanisms may be controlled by the same or independent control units.
  • both actuator mechanisms are controlled and operated in-parallel to provide a combined raising and lowering of the mattress platform in a coordinated manner.
  • the first elongate housing of the first telescopic linear actuator is rigidly connected to the second elongate housing of the second telescopic linear actuator.
  • the mechanical connection between the housings of the respective first and second telescopic linear actuators may be via a connecting frame arrangement and/or part of a frame connecting the stabilising rams to the respective first and second telescopic linear actuators.
  • the lifting assembly 1 has a first end frame 3 positioned at a head end and a second end frame 4 positioned at a foot end. Extending between the first and second end frames 3, 4 is a mattress platform 2.
  • the mattress platform 2 has two parallel, spaced apart longitudinal bars 5 connected by parallel, spaced apart transverse bars 6.
  • the longitudinal and transverse bars 5, 6 define a substantially planar upper surface 8 (best illustrated by Figures 6 and 7 ) upon which a standard single mattress (width 90 cm, length 199 cm) and associated bedding is placed in use to constitute the care bed.
  • the longitudinal bars 5 of the mattress platform 2 are each connected to the first and second end frames 3, 4 via angled connectors 7 at their respective ends.
  • the planar upper surface 8 is below the connection point between the angled connectors 7 and the first and second end frames 3, 4. This allows the mattress platform 2 to be adjacent to the ground when the assembly is in a fully lowered position as shown in Figure 2 .
  • a plurality of feet 9 are attached to the transverse bars 6. The feet 9 contact the ground when the mattress platform 2 is in the fully lowered position.
  • the planar upper surface 8 of the mattress platform 2 is approximately 70 mm above the ground when the lifting assembly 1 is in the fully lowered position.
  • Each of the first and second end frames 3, 4 has an upper portion 10 and a ground-engaging lower portion 20.
  • the upper portion 10 has a pair of parallel, transversely spaced apart leg housing tubes 12.
  • the angled connectors 7 are connected near a lower end of the leg housing tubes 12.
  • the leg housing tubes 12 are hollow cylinders and are capped at an upper end by a plastic cap 15.
  • the pair of leg housing tubes 12 are connected by a plurality of transverse cross bars 14.
  • Mounted on an inward facing side of the leg housing tubes 12 and the transverse cross bars 14 is a cover board 18.
  • the cover board 18 is composed of a wood material/solid board.
  • a C-shaped mounting bar 16 protrudes from an outward facing side of an uppermost transverse cross bar 14.
  • An upper surface of the mounting bar 16 supports a table 17 on which the user can store small items such as a cup or a book.
  • the table 17 is composed of the same material as the cover board 18.
  • the ground-engaging lower portion 20 has a transverse mounting bar 24 extending between and connected to a pair of parallel, transversely spaced apart legs 27.
  • the lifting assembly 1 therefore has four legs 27 disposed substantially rectangularly. Each leg 27 has a square cross-section.
  • the transverse mounting bar 24 has a raised central portion and tapers downwardly at each end. This allows the mounting of two casters 22 underneath the transverse mounting bar 24.
  • Each leg 27 is slidably received in one of the leg housing tubes 12 of the upper portion 10.
  • a bearing 13 is provided at the lower end of each leg housing tube 12 to prevent lateral movement of the leg 27 within the leg housing tube 12 and to prevent the leg 27 being withdrawn from the leg housing tube 12.
  • an actuator mechanism 30 Between the upper portion 10 and the ground-engaging lower portion 20 of each end frame 3, 4 is mounted an actuator mechanism 30. Specifically, the actuator mechanism 30 is connected to the ground-engaging lower portion 20 at the transverse mounting bar 24 and to the upper portion 10 at the C-shaped mounting bar 16 as described below.
  • the actuator mechanism 30 has a first telescopic linear actuator 32 and a second telescopic linear actuator 36 which are transversely and longitudinally spaced apart and vertically offset.
  • the first and second linear actuators 32 and 36 are electronically operated and controlled by a control panel provided at or near to the lifting assembly 1.
  • the first linear actuator 32 has an elongate housing 33 and an elongate rod 34 which is received in the elongate housing 33.
  • the second linear actuator 36 has an elongate housing 37 and an elongate rod 38 which is received in the elongate housing 37.
  • a lower end of the elongate housing 33 of the first linear actuator 32 is attached to a lower support brace 41a.
  • An upper end of the elongate housing 37 of the second linear actuator 36 is attached to an upper support brace 41b.
  • the first and second linear actuators 32 and 36 are arranged to extend and retract vertically in opposite directions.
  • the elongate rod 34 of the first linear actuator 32 extends upwardly and is fixed at a distal end to an upper transverse rail 35.
  • the upper transverse rail 35 is attached to the C-shaped mounting bar 16 of the upper portion 10.
  • the elongate rod 38 of the second linear actuator 36 extends downwardly and is fixed at a distal end to a lower transverse rail 39.
  • the lower transverse rail 39 is attached to the transverse mounting bar 24 of the ground-engaging lower portion 20.
  • each actuator mechanism 30 also has a first pair of stabilising rams 40 which are transversely spaced apart and a second pair of stabilising rams 42 which are transversely spaced apart.
  • the first pair of stabilising rams 40 and the second pair of stabilising rams 42 are mounted rigidly together in a vertically offset, longitudinally side-by-side arrangement.
  • Each stabilising ram 40, 42 has a ram housing 43 and a shaft 44 slidably received within the ram housing 43.
  • the shafts 44 of the first pair of stabilising rams 40 extend upwardly whereas the shafts 44 of the second pair of stabilising rams 42 extend downwardly.
  • a bearing 45 is disposed in one end of the ram housing 43 to prevent lateral movement or over-extension of the shaft 44.
  • the lower support brace 41a is fixed transversely between the ram housings 43 of the first pair of stabilising rams 40.
  • the upper support brace 41b is fixed transversely between the ram housings 43 of the second pair of stabilising rams 42.
  • the upper and lower support braces 41a, b ensure that the ram housings 43 and the elongate housings 33, 37 have a rigid structure and are able to move together.
  • each shaft 44 At a distal end of each shaft 44 is fixed a coupling block 46.
  • the coupling blocks 46 on the respective shafts 44 of the first pair of stabilising rams 40 are fixed at each end of the upper transverse rail 35 (which itself is attached to the C-shaped mounting bar 16 of the upper portion 10).
  • the coupling blocks 46 on the respective shafts 44 of the second pair of stabilising rams 42 are fixed at each end of the lower transverse rail 39 (which itself is attached to the transverse mounting bar 24 of the ground-engaging lower portion 20).
  • the ram housings 43 of the first pair of stabilising rams 40 each have two fixation points 47 to allow a cover (not shown) to be secured over the actuator mechanism 30. This improves the visual appearance of the lifting assembly 1 and helps to prevent any foreign objects such as bedsheets getting caught in the actuator mechanism 30.
  • the actuator mechanisms 30 mounted at each end frame 3, 4 are operated cooperatively to raise and lower the mattress platform 2 and upper portions 10. By operating at the same speed, the actuator mechanisms 30 ensure the mattress platform 2 remains in a horizontal or nearly horizontal position during movement.
  • the second linear actuator 36 at each end frame 3, 4 is activated so that the elongate rod 38 extends.
  • This pushes the elongate housing 37 upwards together with those components of the actuator mechanism 30 which are rigidly connected to the elongate housing 37, namely the support braces 41a, 41b, the elongate housing 33 of the first linear actuator 32 and the ram housings 43 of the first and second pair of stabilising rams 40, 42.
  • the first pair of stabilising rams 40 is connected to the upper portion 10, the upper portion 10 is caused to move upwards together with the mattress platform 2.
  • the shafts 44 of the second pair of stabilising rams 42 are fixed to the ground-engaging lower portion 20 and therefore extend from their ram housings 43 as the elongate housing 38 of the second linear actuator 36 is driven to extend.
  • the legs 27 extend from the leg housing tubes 12 as the upper portion 10 is lifted.
  • the second linear actuator 36 has a stroke length (defined as the difference in the total length of the actuator between a fully extended position and a fully retracted position) of slightly less than 400 mm.
  • the second linear actuator 36 is therefore capable of lifting the mattress platform 2 from the fully lowered position (where the planar upper surface 8 is approximately 70 mm above the ground) to a mid-height position where the planar upper surface 8 is slightly less than 400 mm above the ground. This enables the mattress to be lowered from a standard height to a position adjacent the ground to allow patients with restricted mobility to be moved on or off the mattress with a lower risk of falling.
  • the first linear actuators 32 When the mattress platform 2 is in the fully lowered position, the mid-height position or a height between these positions, the first linear actuators 32 remain fully retracted.
  • the mattress platform 2 can be raised above the mid-height position by activating the first linear actuator 32 at each end frame 3, 4 to extend.
  • the elongate rod 34 of the first linear actuator 32 pushes upwards on the C-shaped mounting bar 16 which lifts the upper portion 10 and mattress platform 2.
  • the shafts 44 of the first pair of stabilising rams 40 are fixed to the upper portion 10 and therefore extend from their ram housings 43 as the first linear actuator 32 is driven to extend.
  • the legs 27 extend further from the leg housing tubes 12 as the upper portion 10 is lifted.
  • the first linear actuator 32 has a stroke length of around 410 mm which is slightly longer than the stroke length of the second linear actuator 36. This advantageously allows the first linear actuator 32 to cover a range of heights for the mattress platform 2 between the mid-height position and a fully raised position where the planar upper surface 8 is greater than 800 mm above the ground. Accordingly, the first linear actuators 32 alone provide a vertical range of movement from just below 400 mm to above 800 mm. The second linear actuators 36 need only be re-activated when lowering to ground level is required.
  • the overall effect of their consecutive activation is that the stroke length of the first and second linear actuators 32, 36 is cumulative (ie additive or combined) allowing a desired height to be selected over a significant range.
  • the cover boards 18 may be used to support a sitting patient and to ensure their privacy and support is maintained when the mattress platform 2 is at any height.

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

Claims (15)

  1. Un ensemble de levage pour un lit de soins comprenant :
    un premier cadre d'extrémité (3) positionné au niveau d'une extrémité de tête de l'ensemble ;
    un deuxième cadre d'extrémité (4) positionné au niveau d'une extrémité de pied de l'ensemble, chaque cadre parmi le premier cadre d'extrémité (3) et le deuxième cadre d'extrémité (4) ayant une partie supérieure (10) et une partie inférieure en contact avec le sol (20) et étant configuré de telle sorte qu'une distance de séparation verticale entre la partie supérieure (10) et la partie inférieure en contact avec le sol (20) est réglable ;
    une plateforme pour matelas (2) s'étendant longitudinalement entre la partie supérieure (10) du premier cadre d'extrémité (3) et la partie supérieure (10) du deuxième cadre d'extrémité (4) et raccordée à celles-ci, la plateforme pour matelas (2) ayant une surface supérieure (8) plane pour soutenir un matelas ;
    au moins un mécanisme actionneur (30) monté sur au moins le premier ou le deuxième cadre d'extrémité (3, 4) ;
    caractérisé en ce que :
    le mécanisme actionneur (30) a un premier actionneur linéaire télescopique (32) et un deuxième actionneur linéaire télescopique (36), le premier actionneur linéaire télescopique (32) ayant un premier boîtier allongé (33) et une première tige allongée (34) reçue de façon à pouvoir coulisser dans le premier boîtier allongé (33) et pouvant s'étendre linéairement sur une première longueur de course entre une position rétractée et une position étendue par rapport au premier boîtier allongé (33), et le deuxième actionneur linéaire télescopique (36) ayant un deuxième boîtier allongé (37) et une deuxième tige allongée (38) reçue de façon à pouvoir coulisser dans le deuxième boîtier allongé (37) et pouvant s'étendre linéairement sur une deuxième longueur de course entre une position rétractée et une position étendue par rapport au deuxième boîtier allongé (37) ;
    dans lequel le premier actionneur linéaire télescopique (32) est raccordé à la partie supérieure (10) et le deuxième actionneur linéaire télescopique (36) est raccordé à la partie inférieure en contact avec le sol (20) de telle sorte qu'un réglage de la distance de séparation verticale entre la partie supérieure (10) et la partie inférieure en contact avec le sol (20) pour fournir un réglage correspondant de la hauteur de la plateforme pour matelas (2) est la somme des longueurs de course du premier actionneur linéaire télescopique (32) et du deuxième actionneur linéaire télescopique (36) ;
    l'ensemble de levage est à même de régler la hauteur d'une plateforme pour matelas (2) sur toute une plage verticale de telle sorte que :
    a) la surface supérieure (8) plane de la plateforme pour matelas (2) peut être déplacée jusqu'à une position entièrement abaissée pour fournir une distance de séparation avec un sol plat plus petite que 100 mm et
    b) la surface supérieure (8) plane de la plateforme pour matelas (2) peut être déplacée jusqu'à une position entièrement relevée pour fournir une distance de séparation avec un sol plat plus grande que 800 mm.
  2. L'ensemble de levage tel que revendiqué dans la revendication 1, dans lequel une distance de séparation verticale maximale entre la partie supérieure (10) et la partie inférieure en contact avec le sol (20) est la combinaison de chaque longueur parmi la première longueur de course et la deuxième longueur de course.
  3. L'ensemble de levage tel que revendiqué dans la revendication 1 ou la revendication 2 dans lequel la partie supérieure (10) de chacun des cadres d'extrémité (3, 4) a une paire de tubes formant boîtiers de jambes (12) espacés transversalement l'un de l'autre et la partie inférieure en contact avec le sol (20) de chacun des cadres d'extrémité (3, 4) a une paire de jambes espacées transversalement l'une de l'autre montées respectivement de façon télescopique dans la paire de tubes formant boîtiers de jambes (12).
  4. L'ensemble de levage tel que revendiqué dans n'importe quelle revendication précédente dans lequel le premier actionneur linéaire télescopique (32) est raccordé de façon rigide au deuxième actionneur linéaire télescopique (36) par une première paire de vérins stabilisateurs (40) et une deuxième paire de vérins stabilisateurs (42).
  5. L'ensemble de levage tel que revendiqué dans la revendication 4 dans lequel chaque vérin stabilisateur (40, 42) a un boîtier de vérin (43) et un arbre reçu à l'intérieur du boîtier de vérin (43) qui peut s'étendre et se rétracter linéairement par rapport au boîtier de vérin (43).
  6. L'ensemble tel que revendiqué dans la revendication 4 ou la revendication 5 dans lequel la première paire de vérins stabilisateurs (40) et la deuxième paire de vérins stabilisateurs (42) sont montées de façon rigide selon un agencement côte à côte.
  7. L'ensemble de levage tel que revendiqué dans la revendication 5 ou la revendication 6 dans lequel une extrémité distale de chaque vérin de la première paire de vérins stabilisateurs (40) est couplée à la partie supérieure (10) et une extrémité distale de chaque vérin de la deuxième paire de vérins stabilisateurs (42) est couplée à la partie inférieure en contact avec le sol (20).
  8. L'ensemble de levage tel que revendiqué dans n'importe lesquelles des revendications 4 à 7 dans lequel une entretoise de soutien inférieure (41a) est fixée transversalement entre la première paire de vérins stabilisateurs (40) et une entretoise de soutien supérieure (41b) est fixée transversalement entre la deuxième paire de vérins stabilisateurs (42).
  9. L'ensemble de levage tel que revendiqué dans la revendication 8 dans lequel une extrémité inférieure du premier boîtier allongé (33) du premier actionneur linéaire (32) est attachée à l'entretoise de soutien inférieure (41a) et une extrémité supérieure du deuxième boîtier allongé (37) du deuxième actionneur linéaire (36) est attachée à l'entretoise de soutien supérieure (41b).
  10. L'ensemble de levage tel que revendiqué dans n'importe quelle revendication précédente dans lequel le premier actionneur linéaire télescopique (32) et le deuxième actionneur linéaire télescopique (36) sont espacés transversalement l'un de l'autre et verticalement décalés.
  11. L'ensemble de levage tel que revendiqué dans n'importe quelle revendication précédente dans lequel les premier et deuxième actionneurs linéaires (32, 36) sont agencés pour s'étendre et se rétracter verticalement dans des directions opposées.
  12. L'ensemble tel que revendiqué dans la revendication 11 dans lequel une extrémité distale de la première tige allongée (34) est raccordée à la partie supérieure (10) et une extrémité distale de la deuxième tige allongée (38) est raccordée à la partie inférieure en contact avec le sol (20).
  13. L'ensemble de levage tel que revendiqué dans n'importe quelle revendication précédente dans lequel le premier actionneur linéaire télescopique (32) peut être mis en fonctionnement indépendamment du deuxième actionneur linéaire (36).
  14. L'ensemble de levage tel que revendiqué dans n'importe quelle revendication précédente, dans lequel une longueur du premier boîtier allongé (33) et de la première tige allongée (34) est plus grande qu'une longueur du deuxième boîtier allongé (37) et de la deuxième tige allongée (38) de telle sorte que la première longueur de course est plus grande que ou égale à la deuxième longueur de course.
  15. L'ensemble tel que revendiqué dans n'importe quelle revendication précédente, dans lequel l'au moins un mécanisme actionneur (30) comprend un premier mécanisme actionneur monté sur le premier cadre d'extrémité (3) et un deuxième mécanisme actionneur monté sur le deuxième cadre d'extrémité (4).
EP20199178.3A 2019-10-09 2020-09-30 Ensemble de levage Active EP3804684B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1914576.2A GB2588139B (en) 2019-10-09 2019-10-09 Lifting Assembly

Publications (2)

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EP3804684A1 EP3804684A1 (fr) 2021-04-14
EP3804684B1 true EP3804684B1 (fr) 2024-03-27

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EP (1) EP3804684B1 (fr)
AU (1) AU2020250283B2 (fr)
GB (1) GB2588139B (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA713429B (en) 1970-09-16 1972-01-26 Stiegelmeyer & Co Gmbh Adjustable bed
US3900906A (en) 1974-04-18 1975-08-26 Century Mfg Co Adjustable bed
JP2007215823A (ja) * 2006-02-17 2007-08-30 Mitsuba Corp 医療・介護用ベッド
FR2951372B1 (fr) * 2009-10-20 2011-12-09 Hill Rom Sas Lit d'hopital ou d'hebergement a plan de couchage reglable
WO2012074297A2 (fr) * 2010-11-30 2012-06-07 한국생산기술연구원 Support de douche adapté aux personnes âgées
WO2014057313A1 (fr) * 2012-10-12 2014-04-17 Ideassociates (Iom) Limited Lit
DE202015101357U1 (de) * 2015-03-17 2016-06-22 Hermann Bock Gmbh Höhenverstellbares Bett
CH712857A2 (de) * 2016-08-29 2018-03-15 Smart Assist Gmbh Höhenverstellbares Pflegebett mit gleitfreien Hebern.
US10188566B2 (en) 2016-10-31 2019-01-29 Accora Limited Lifting mechanism

Also Published As

Publication number Publication date
GB2588139B (en) 2021-12-08
EP3804684A1 (fr) 2021-04-14
GB2588139A (en) 2021-04-21
GB201914576D0 (en) 2019-11-20
AU2020250283B2 (en) 2021-11-11
AU2020250283A1 (en) 2021-04-29

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