WO2019161868A1 - Châssis de siège et procédé de fonctionnement - Google Patents

Châssis de siège et procédé de fonctionnement Download PDF

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Publication number
WO2019161868A1
WO2019161868A1 PCT/DK2019/050065 DK2019050065W WO2019161868A1 WO 2019161868 A1 WO2019161868 A1 WO 2019161868A1 DK 2019050065 W DK2019050065 W DK 2019050065W WO 2019161868 A1 WO2019161868 A1 WO 2019161868A1
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WO
WIPO (PCT)
Prior art keywords
base unit
seating furniture
pivot linkage
furniture chassis
linear actuator
Prior art date
Application number
PCT/DK2019/050065
Other languages
English (en)
Inventor
Michael Jeppesen
Original Assignee
Global FabTech (Shanghai) Company Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Global FabTech (Shanghai) Company Limited filed Critical Global FabTech (Shanghai) Company Limited
Publication of WO2019161868A1 publication Critical patent/WO2019161868A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/14—Standing-up or sitting-down aids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/104—Devices for lifting or tilting the whole wheelchair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards

Definitions

  • the present invention relates to a seating furniture chassis, which seating furniture chassis comprises:
  • first end of the main console is pivotally connected to the base unit via a first pivot linkage
  • second end of the main console is pivotally connected to the tilt base unit via a second pivot linkage, which second pivot linkage is located at the first end of the tilt base unit
  • first end of the upper main console is connected pivotally to the base unit via a third pivot linkage
  • second end of the upper main console is connected pivotally to the tilt base unit via a fourth pivot linkage
  • fourth pivot linkage is located at the first end of the tilt base unit in a position closer to an intermediate part of the tilt base unit than the position of the second pivot linkage
  • main console and the upper main console and a part of the base unit and a part of the tilt base unit create a quadrilateral
  • the tilt base unit is arranged for performing a tilting motion relative to the base unit when the first linear actuator is activated, where the second end of the tilt base unit is moved in a substantially linear direction during the tilting motion.
  • the present invention relates to a method to operate a seating furniture chassis. The method allows ergonomic entry to and exit from a seat connected to the seating furniture chassis.
  • the device does not combine compact dimensions with low activation energy relative to the lifted weight. Furthermore, the device is only capable of lifting a point.
  • Seating furniture chassis according to the state of the art have limitations, which make them unsuitable for wheelchairs, as seating furniture chassis in wheelchairs face mul- tiple constraints. Firstly, compact outer dimensions in a closed, inactivated position are a necessity es- pecially for installation in wheelchairs, which have severely constrained space for installation.
  • the electrical power available in wheelchairs for operation of the seating furniture chassis is limited. Multiple factors contribute to this limitation, for example the available battery capacity and the usability with regard to recharging intervals and times as well as the power limitations of the control circuitry for activation of the seat- ing furniture chassis.
  • the tilting function allows a person in the seat to get into a comfortable reclined position.
  • the combination of tilting and lifting function allows easy and ergonomic entry into the chair and easy and ergonomic exit out of the chair. Furthermore, change of position, for example from sitting to standing, is assisted. Those needs are especially important for disabled and elderly persons.
  • the first linear actuator is located substantially parallel with the elongated tilt base unit
  • the first linear actua- tor comprises a first actively displaceable slider which is connected with a first lever which is pivotally connected to the upper main console via a fifth pivot linkage.
  • the seating furniture chassis can comprise a seat.
  • the seating furniture chassis can tilt the seat backwards in a tilting motion.
  • the seat is thus in a reclining position.
  • a re- clining position is also referred to as a comfort position.
  • the frame can be a wheeled frame or a stationary frame.
  • the wheeled frame can be a driving unit for a wheelchair.
  • the frame is for simplicity illustrated by a surface line in the figures.
  • the frame typically has a plane surface.
  • the substantially linear motion of the second end of the tilt base unit is typically oriented vertically to the plane surface of the frame.
  • the base unit has a plane surface for connection with the plane surface of the frame.
  • the first actively displaceable slider pushes and pulls on the first lever, when the first linear actuator is actuated.
  • a force is generated between the upper main console and the tilt base unit. This force brings about the tilting motion.
  • Pivot linkage is used as a synonym for point of interest and POI throughout this appli cation.
  • the seating furniture chassis can comprise two elongated main consoles.
  • the seating furniture chassis can comprise two elongated upper main consoles.
  • the seating furni ture chassis can comprise two elongated tilt base units.
  • the elongated consoles of elongated base units of the same type are mounted besides each other on a common axis at the pivot linkages. This has the advantage of providing an especially stable seating furniture chassis.
  • the seating furniture chassis is peculiar in that the fifth pivot linkage is located in a distance from a line connecting the third piv ot linkage and fourth pivot linkage, where said fifth pivot linkage is located on a side of said line on which the first pivot linkage and second pivot linkage are located.
  • the seating furniture chassis is peculiar in that the first actively displaceable slider comprises an internal thread, and that the first linear actuator comprises a first threaded spindle on which the first actively displacea- ble slider is displaced and a first motor for rotating the first threaded spindle and thereby effecting the displacement of the first actively displaceable slider.
  • the first threaded spindle and first actively displaceable slider convert torque from the motor into a linear driving force for tilting motion.
  • the seating furniture chassis can comprise a controller.
  • the controller controls the first linear actuator.
  • the seating furniture chassis can comprise a power source.
  • the power source delivers power to the controller and the first linear actuator.
  • the power source can be a battery.
  • the seating furniture chassis is peculiar in that the first linear actuator can actuate a load of 200 kg with an input force of 3000 to 7000 Newton, preferably 4000 to 6500 Newton, more preferably 6000 Newton.
  • the input force can be provided by the first motor or any other suitable means.
  • the seating furniture chassis is peculiar in that the first motor for rotating the first threaded spindle is connected to the first threaded spindle with a crown wheel and a pinion.
  • the first motor and the first threaded spindle can be connected using a planetary gear.
  • the seating furniture chassis is peculiar in that the seating furniture chassis further comprises:
  • a second linear actuator arranged parallel with the elongated lift base plate, and in that the tilt base unit and the elongated lift base plate are connected pivotally via a sixth pivot linkage, that the second linear actuator comprises a second actively displaceable slider, that the second actively displaceable slider is pivotally connected with the first end of the lifting lever via a seventh pivot linkage, and that the lifting lever at the second end is pivotally connected to the tilt base unit.
  • the seating furniture chassis allows a lifting motion to be performed by actuating the first and second linear actuators.
  • actuating the first actuator By actuating the first actuator only, a tilting motion is performed.
  • actuating the first and the second actuator a lift motion is performed.
  • Lifting motion in the present application refers to a substantially parallel displacement of the elongated lift base plate relative to the base unit, more specifically to the plane surface of the base unit.
  • the seating furniture chassis allows the seat to be tilted forward for easier entry and exit of the seating furniture.
  • the seating furniture allows the seat to be tilted back wards for a more relaxed seating position and for resting.
  • the seating furniture chassis allows a disabled person to get in a standing position, both for medical and social purposes.
  • the elongated lift base plate is at its first end connected pivotally to the tilt base plate.
  • the seating furniture chassis s peculiar in, that the second actively displaceable slider comprises an internal thread, and that the second linear actuator comprises at least a second threaded spindle on which the sec- ond actively displaceable slider is displaced and a second motor for rotating the at least second threaded spindle and thereby effecting the displacement of the second actively displaceable slider.
  • the second motor can be connected to the second spindle with a crown wheel and a pinion.
  • the second motor and the second threaded spindle can be con nected with a planetary gear.
  • the second motor can be positioned on a side of the seating furniture chassis. Prefera- bly the side the first motor is located on.
  • the seating furniture chassis can comprise a controller.
  • the controller can control the second linear actuator.
  • the seating furniture chassis can comprise a power source.
  • the power source can de- liver power to the controller and the second linear actuator.
  • the second spindle can be positioned in the middle of the seating furniture chassis.
  • the second spindle can be positioned on a side of the elongated lift base plate, preferably the side on which the second motor is located.
  • the seating furniture chassis can comprise a third threaded spindle.
  • the third threaded spindle can be connected to the second motor with a second crown wheel and a second pinion.
  • the third threaded spindle can be connected to the second motor with a planetary gear.
  • the second and third threaded spindles can be located on opposing sides of the elon gated lift base plate.
  • the seating furniture chassis can comprise a controller.
  • the controller controls the first linear actuator.
  • the seating furniture chassis can comprise a power source.
  • the power source delivers power to the controller and the first linear actuator.
  • the seating furniture chassis is peculiar in that the tilt base unit comprises a cam with its pivot axis outside of the tilt base unit, and in that the lifting lever at its second end is adapted to cooperate with the cam to pivot around the pivot axis of the cam.
  • the cam can be a partial circle.
  • the cam can be bolted to a side of the tilt base unit.
  • the seating furniture chassis is peculiar in that the second linear actuator can actuate a load of 200 kg with an input force of 3000 to 7000 Newton, preferably 4000 to 6500 Newton, more preferably 6000 Newton.
  • the low input force requirement of the second linear actuator reduces power require- ments for driving the second linear actuator. This is especially important for wheel- chairs where the available battery capacity and amperage of a control circuit can be limited.
  • the input force can be provided by the second motor or any other suitable means.
  • the input force can vary depending on the centre of gravity of the load. If the centre of gravity of the load is located close to the first end of the elongated lift base plate, the first load on the first actuator will be maximised, while there is less load on the second actuator. If the centre of gravity of the load is located close to the second end of the elongated lift base plate, the load on the second actuator is maximised, while there is less load on the first actuator.
  • a further aspect of the invention is a method to operate a seating furniture chassis according to the invention which is peculiar in that the method comprises the follow- ing steps:
  • the tilting angle is measured between a plane containing the plane surface of the base unit and a plane containing a plane surface of the elongated lift base plate.
  • the method can be performed in reverse, where performing a tilting motion reducing the value of the tilting angle is performed. Then a lowering motion is performed.
  • the lowering motion is the opposite of the above described lift motion.
  • the technical effect achieved with this method is a more ergonomic entry and exit of a person from the seating furniture.
  • the seat On exit of a person from the seat, the seat is first lifted and tilted.
  • the lift and tilt re Jerusalem the bend on the knees of the person in the wheelchair prior to the weight of the person being transferred from the seat of the wheelchairs to the legs. This reduces the stress on the knees and the required strength of the legs of the person getting out of the wheelchair.
  • Fig. 1 shows an embodiment of the seating furniture chassis according to the inven tion seen from the side
  • Fig. 2 shows the same embodiment as shown in Fig. 1 seen from another side
  • Fig. 3 shows the same embodiment as shown in Fig. 1-3 seen from the back
  • Fig. 4 shows the same embodiment as shown in Fig. 1-3 seen from the front
  • Fig. 5 shows the same embodiment as shown in Fig. 1-4 seen from the top
  • Fig. 6 shows the same embodiment as shown in Fig. 1-5 seen from the bottom
  • Fig. 7 shows the same embodiment as shown in Fig. 1-6 seen in a perspective view
  • Fig. 8 shows the same embodiment as shown in Fig. 1-7 seen in another perspective view
  • Fig. 9 shows the same embodiment as shown in Fig. 1-8 in a folded or closed posi tion
  • Fig. 10 shows the same embodiment as shown in Fig. 1-9 in a tilted position
  • Fig. 11 shows another embodiment of the seating furniture chassis according to the invention seen from the side
  • Fig. 12 shows the same embodiment as shown in Fig. 11 seen from another side
  • Fig. 13 shows the same embodiment as shown in Fig. 11-12 seen from the back
  • Fig. 14 shows the same embodiment as shown in Fig. 11-13 seen from the front
  • Fig. 15 shows the same embodiment as shown in Fig. 11-14 seen from the top
  • Fig. 16 shows the same embodiment as shown in Fig. 11-15 seen from the bottom
  • Fig. 17 shows the same embodiment as shown in Fig. 11-16 seen in a perspective view
  • Fig. 18 shows the same embodiment as shown in Fig. 11-17 seen in another perspec tive view
  • Fig. 19 shows the same embodiment as shown in Fig. 11-18 seen in another perspec tive view and with some parts removed,
  • Fig. 20 shows the same embodiment as shown in Fig. 11-19 in a position which is lifted and partially tilted forward
  • Fig. 21 shows the same embodiment as shown in Fig. 11-20 in a position which is lifted and tilted backwards
  • Fig. 22a-c show different positions of a seating furniture chassis according to the in vention in different positions
  • Fig. 23 a-c show a seating furniture chassis according to the invention in different positions
  • Fig. 24 shows another embodiment of a seating furniture chassis according to the invention
  • Fig. 25 shows another embodiment of a seating furniture chassis according to the invention
  • Fig. 26 shows the embodiment of a seating furniture chassis shown in Fig. 1 with a possible orientation of a seat
  • Fig. 27 shows the embodiment of a seating furniture chassis shown in Fig. 11 with a possible orientation of a seat
  • Fig. 28a-c show different positions of a seating furniture chassis during a method to operate a seating furniture chassis according to the invention.
  • Figure 1-8 shows an embodiment of the seating furniture chassis 100 according to the invention from different viewpoints.
  • Fig. 1 shows the seating furniture chassis from one side.
  • Fig. 2 shows the seating furniture chassis from another side.
  • Fig. 3 shows the seating furniture chassis from the back.
  • Fig. 4 shows the seating furniture chassis from the front.
  • Fig. 5 shows the seating furniture chassis from the top.
  • Fig. 6 shows the seating furniture chassis from the bottom.
  • Fig. 7 shows the seating furniture chassis in a perspective view.
  • Fig. 8 shows the seating furniture chassis in another perspective view.
  • the seating furniture chassis is shown in a partially tilted position.
  • the seating furniture chassis comprises:
  • the first end of the main console 104 is pivotally connected to the base unit 108 via a first pivot linkage 150, and the second end l04b of the main console 104 is pivotally connected to the tilt base unit 107 via a second pivot linkage 153.
  • the base unit has a plane surface for connection with the plane surface of the frame 105.
  • the second pivot linkage 153 is located at the first end l07a of the tilt base unit 107.
  • the first end of the upper main console 103 is connected pivotally to the base unit 108 via a third pivot linkage 151.
  • the frame 105 can be a wheeled frame or a stationary frame.
  • the wheeled frame can be a driving unit for a wheelchair.
  • the frame 105 is for simplicity illustrated by a surface line in the figures.
  • the second end of the upper main console 103 is connected pivotally to the tilt base unit 107 via a fourth pivot linkage 154.
  • the fourth pivot linkage 154 is located at the first end of the tilt base unit 107 in a position closer to an intermediate part 107c of the tilt base unit 107 than the position of the second pivot linkage 153.
  • the main console 104 and the upper main console 103 and a part of the base unit 108 and a part of the tilt base unit 107 create a quadrilateral.
  • the third pivot linkage 151 is located at a higher level 180 above the frame 105 - in the figures the frame 105 is for convenience represented by the plane surface thereof - than a level for 170 the first pivot linkage 150.
  • the tilt base unit 107 is arranged for performing a tilting motion relative to the base unit 108 when the first linear actuator 106 is activated, where the second end l07b of the tilt base unit 107 is moved in a substantially linear direction during the tilting mo- tion.
  • the first linear actuator 106 is located substantially parallel with the elongated tilt base unit 107.
  • the first linear actuator 106 comprises a first actively displaceable slider 101 which is connected with a first lever 102 which is pivotally connected to the upper main con sole 103 via a fifth pivot linkage 152.
  • the frame 105 typically has a plane surface.
  • the substantially linear motion of the second end of the tilt base unit is typically oriented vertically to the plane surface of the frame.
  • the seating furniture chassis 100 comprises two elongated main consoles 104.
  • the seating furniture chassis 100 comprises two elongated upper main consoles 103.
  • the seating furniture chassis can comprise two elongated tilt base units 107.
  • the elongated consoles of elongated base units of the same type are mounted besides each other on a common axis at the pivot linkages. This has the advantage of providing an especially stable seating furniture chassis.
  • the fifth pivot linkage 152 is located in a distance 220 from a line 230 connecting the third pivot linkage 151 and fourth pivot linkage 154.
  • the fifth pivot linkage 152 is located on a side of said line 230 on which the first pivot linkage 150 and second pivot linkage 153 are located.
  • the first actively displaceable slider 101 comprises an internal thread.
  • the first linear actuator 106 comprises a first threaded spindle 121 on which the first actively dis placeable slider 101 is displaced and a first motor 125 for rotating the first threaded spindle and thereby effecting the displacement of the first actively displaceable slider 101
  • the first linear actuator 106 can actuate a load of 200 kg with an input force of 3000 to 7000 Newton, preferably 4000 to 6500 Newton, more preferably 6000 Newton.
  • the first motor 125 for rotating the first threaded spindle 121 is connected to the first threaded spindle with a first crown wheel 126 and a first pinion 127.
  • the first motor and the first threaded spindle can be connected using a planetary gear.
  • Fig. 9 and 10 show the same embodiment of the seating furniture chassis as shown in Fig. 1-8.
  • Fig. 9 the seating furniture chassis is shown in a folded position. This position can also be referred to as lowered position.
  • Fig. 10 shows the seating furniture chassis in a tilted position.
  • a seat can be mounted on the elongated tilt base unit.
  • the first actively displaceable slider pushes and pulls on the first lever, when the first linear actuator 106 is actuated.
  • a force is generated between the upper main con sole 103 and the tilt base unit 107. This force brings about the tilting motion.
  • Fig. 11 shows another embodiment of a seating furniture chassis according to the in vention.
  • FIG 11-19 show another embodiment of the seating furniture chassis 200 according to the invention from different viewpoints.
  • This embodiment is a seating furniture chassis 100 comprising further elements as explained in detail below.
  • Fig. 11 shows the seating furniture chassis from one side.
  • Fig. 12 shows the seating furniture chassis from another side.
  • Fig. 13 shows the seating furniture chassis from the back.
  • Fig. 14 shows the seating furniture chassis from the front.
  • Fig. 15 shows the seating furniture chassis from the top.
  • Fig. 16 shows the seating furniture chassis from the bottom.
  • Fig. 17 shows the seating furniture chassis in a perspective view.
  • Fig. 18 and 19 show the seating furniture chassis in perspective views. In Fig. 19 parts of the seating furniture chassis are hidden for better visibility of the second threaded spindle 204 and third threaded spindle 214.
  • Fig. 11-19 show the seating furniture chassis in a partially lifted position.
  • the seating furniture chassis 200 comprises:
  • the tilt base unit 107 and the elongated lift base plate 203 are connected pivotally via a sixth pivot linkage 205.
  • the second linear actuator 206 comprises a second actively displaceable slider 211.
  • the elongated lift base plate 203 has a first end 203a and a second end 203b.
  • the piv ot linkage 205 is located at the first end 203a of the elongated lift base plate.
  • the elongated lift base plate 203 comprises an intermediate part.
  • the second actively displaceable slider 211 is pivotally connected with the first end 202a of the lifting lever 202 via a seventh pivot linkage 201.
  • the lifting lever 202 is at the second end 202b pivotally connected to the tilt base unit 107.
  • the seating furniture chassis 200 allows a lifting motion to be performed by actuating the first 106 and second 206 linear actuators. By actuating the first linear actuator 106 only, a tilting motion is performed. By actuating the first 106 and the second linear actuator 206 a lift motion is performed.
  • the seating furniture chassis allows the seat to be tilted forward for easier entry and exit of the seating furniture.
  • the seating furniture allows the seat to be tilted back wards for a more relaxed seating position and for resting.
  • the seating furniture chassis comprises a controller 260.
  • the controller controls the first linear actuator 106 and the second linear actuator 206.
  • the seating furniture chassis comprises a power source 270.
  • the power source 270 delivers power to the controller 260 and the first 106 and second 206 linear actuator.
  • the power source 270 can be a battery.
  • the tilt base unit 107 comprises a cam 240 with its pivot axis 241 outside of tilt base unit 107.
  • the lifting lever 202 is at its second end 202b adapted to cooperate with the cam 240 to pivot around the pivot axis 241 of the cam.
  • the cam 240 is a partial circle.
  • the cam is bolted to a side of the tilt base unit 107.
  • the cam can consist of two concentric partial circles.
  • the second linear actuator 206 can actuate a load of 200 kg with an input force of 3000 to 7000 Newton, preferably 4000 to 6500 Newton, more preferably 6000 New ton.
  • the low input force requirement of the second linear actuator 206 reduces power re- quirements for driving the second linear actuator. This is especially important for wheelchairs where the available battery capacity and amperage of a control circuit can be limited.
  • the input force can be provided by the second motor 212 or any other suitable means.
  • the second actively displaceable slider 211 comprises an internal thread.
  • the second linear actuator 206 comprises at least a second threaded spindle 204, on which the second actively displaceable slider 211 is displaced.
  • the second linear actuator comprises a second motor 212 for rotating the at least sec- ond threaded spindle 204 and thereby effecting the displacement of the second active- ly displaceable slider 211.
  • the second linear actuator comprises a third threaded spindle 214.
  • the second 204 and third threaded spindle 214 are connected to the second motor 212 with a second crown wheel 216 and a second pinion 217.
  • the second threaded spindle 204 and the third threaded spindle 214 can be connected to the sec- ond motor 212 with a planetary gear.
  • Fig. 20 shows the embodiment of the seating furniture shown in Fig. 11-19 in a par tially raised and partially tilted forward position.
  • Fig. 21 shows the embodiment of the seating furniture shown in Fig. 11-19 in a posi tion which assists the user in getting out of the chair.
  • the seating furniture chassis is in a raised or lifted positon.
  • the seating furniture chassis is also tilted.
  • the tilting po sition is an extreme position. Positions with a lower tilting angle can be used to assist the user in getting out of the chair..
  • Fig. 22a-c show the embodiment of the seating furniture chassis 200 shown in Fig. 11- 21 in different positions.
  • Fig. 22a shows the seating furniture chassis 200 in a closed or folded position. In this position a seat surface (not shown) is in the lowest position.
  • Fig. 22b and Fig. 22c show the seating furniture chassis 200 in two different comfort positions.
  • Fig. 22b the seating furniture chassis 200 is in a partially lifted and partially tilted position. If a seat (not shown) is mounted on the seating furniture chassis in the orien tation shown in Fig. 27, the tilt would be backwards oriented. A user (not shown) seated in the seat (not shown) would be in a reclined position.
  • Fig. 22b shows the seating furniture chassis 200 in an extreme position. If a seat (not shown) is mounted on the seating furniture chassis in the orientation shown in Fig. 27, the tilt would be backwards oriented. A user (not shown) seated in the seat (not shown) would be in a fully reclined position.
  • Fig. 23 a-c show a seating furniture chassis 200 according to the invention in different positions.
  • Fig. 23a shows the seating furniture chassis in closed or folded position.
  • Fig. 23b shows the seating furniture chassis in a partially lifted position.
  • Fig. 23c shows the seating furniture chassis in fully lifted position.
  • Fig. 24 and 25 show two further embodiments of the invention. The description above applies to these embodiments as well.
  • Fig. 26 shows the embodiment of the seating furniture chassis 100 shown in Fig. 1 with a possible orientation of a seat 280.
  • the seat 280 comprises a seat surface 281 and a backrest 282.
  • the seat 280 further comprises an optional leg rest 283 and an optional footrest 284.
  • the seat 280 is in a reclined position. This position is also referred to as comfort posi- tion.
  • the backrest 282 can pivot relative to the seat surface 281 during operation of the seating furniture chassis 100. This assures an ergonomic position of the user of the seat at all times during the operation of the seating furniture chassis 100.
  • the leg rest 283 and footrest 282 can pivot relative to the seat surface 281 during op- eration of the seat furniture chassis 100. This assures an ergonomic position of the user of the seat at all times during the operation of the seating furniture chassis 100.
  • Fig. 27 shows the embodiment of the seating furniture chassis 200 shown in Fig. 11 with a possible orientation of a seat 280.
  • the seat 280 comprises a seat surface 281 and a backrest 282.
  • the seat 280 further comprises an optional leg rest 283 and an optional footrest 284.
  • the seat 280 is in upright position.
  • the backrest 282 can pivot relative to the seat surface 281 during operation of the seating furniture chassis 200. This assures an ergonomic position of the user of the seat at all times during the operation of the seating furniture chassis 200.
  • the leg rest 283 and footrest 282 can pivot relative to the seat surface 281 during op- eration of the seat furniture chassis 200. This assures an ergonomic position of the user of the seat at all times during the operation of the seating furniture chassis 200.
  • the seat can also be rotated 180 degrees relative to the position of the seat 280 shown in fig. 26 and Fig. 27.
  • Fig. 28a-c show different positions of a seating furniture chassis during a method to operate a seating furniture chassis according to the invention.
  • the method comprises the following step:
  • Fig. 28a shows the seating furniture chassis in its closed or folded position.
  • the seating furniture chassis 200 is transformed into the position shown in fig. 28b.
  • the method further comprises the following step:
  • the technical effect achieved with this method is a more ergonomic entry and exit of a person from the seating furniture.
  • the seat On exit, the seat is first lifted and tilted.
  • the lift and tilt reduce the bend on the knees of the person in the wheelchair prior to the weight of the person being transferred from the seat of the wheelchairs to the legs. This reduces the stress on the knees and the required strength of the legs of the person getting out of the wheelchair.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un châssis de siège (100), lequel châssis de siège comprend : - un cadre (105) , - une unité de base (108), - un système d'inclinaison, qui comprend : - une unité de base inclinée allongée (107) ayant une première (107a) et une seconde (107b) extrémité, - une console principale allongée (104) ayant une première extrémité (104a) et une seconde extrémité (104b), - une console principale supérieure allongée (103) ayant une première (103a) et une seconde (103b) extrémité, - un premier actionneur linéaire (106). La première extrémité (104a) de la console principale est reliée de manière pivotante à l'unité de base (108) par l'intermédiaire d'une première liaison pivot (150). La seconde extrémité (104b) de la console principale est reliée de manière pivotante à l'unité de base inclinée par l'intermédiaire d'une deuxième liaison pivot (153), laquelle deuxième liaison pivot est située au niveau de la première extrémité (107a) de l'unité de base inclinée (107). La première extrémité (103a) de la console principale supérieure est reliée de manière pivotante à l'unité de base (108) par l'intermédiaire d'une troisième liaison pivot (151) et la seconde extrémité (103b) de la console principale supérieure (103) est reliée de manière pivotante à l'unité de base inclinée (107) par l'intermédiaire d'une quatrième liaison pivot (154), laquelle quatrième liaison pivot est située au niveau de la première extrémité de l'unité de base inclinée (107) dans une position plus proche d'une partie intermédiaire (107c) de l'unité de base inclinée (107) que la position de la deuxième liaison pivot (153). Le premier actionneur linéaire (106) est situé à proximité et sensiblement parallèlement à l'unité de base inclinée allongée (107) dans une direction d'extrémité à extrémité. Le premier actionneur linéaire (106) comprend une première glissière déplaçable activement (101) qui est reliée à un premier levier (102) qui est relié de manière pivotante à la console principale supérieure (103) par l'intermédiaire d'une cinquième liaison pivot (152).
PCT/DK2019/050065 2018-02-26 2019-02-21 Châssis de siège et procédé de fonctionnement WO2019161868A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201800092 2018-02-26
DKPA201800092 2018-02-26

Publications (1)

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WO2019161868A1 true WO2019161868A1 (fr) 2019-08-29

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215386A (en) * 1964-04-10 1965-11-02 Milsco Mfg Co Pneumatic seat support
US4083599A (en) * 1976-04-16 1978-04-11 Gaffney Edward J Lift chair with rocker and wheel frame attachments
JPS61187859A (ja) * 1985-02-18 1986-08-21 株式会社　吉田製作所 治療台の昇降機構
US5004206A (en) * 1990-01-26 1991-04-02 Scott Anderson Vehicle seat mounting structure
WO1992015271A1 (fr) * 1991-03-01 1992-09-17 Hand-Pro As Systeme de chaise roulante
US6155642A (en) * 1998-07-02 2000-12-05 Oohiro Works, Ltd. Barber/beauty chair
US6354556B1 (en) * 1999-02-04 2002-03-12 Freightliner Llc Seat suspension method
US6371456B1 (en) * 1999-02-04 2002-04-16 Freightliner Llc Seat suspension system
US20090218784A1 (en) * 2006-04-03 2009-09-03 Francois Porcheron Multi-Position Wheelchair for Handicapped People
US20170296411A1 (en) * 2015-01-15 2017-10-19 Innotec Motion GmbH Seating furniture chassis having a height-adjustment seat surface

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215386A (en) * 1964-04-10 1965-11-02 Milsco Mfg Co Pneumatic seat support
US4083599A (en) * 1976-04-16 1978-04-11 Gaffney Edward J Lift chair with rocker and wheel frame attachments
JPS61187859A (ja) * 1985-02-18 1986-08-21 株式会社　吉田製作所 治療台の昇降機構
US5004206A (en) * 1990-01-26 1991-04-02 Scott Anderson Vehicle seat mounting structure
WO1992015271A1 (fr) * 1991-03-01 1992-09-17 Hand-Pro As Systeme de chaise roulante
US6155642A (en) * 1998-07-02 2000-12-05 Oohiro Works, Ltd. Barber/beauty chair
US6354556B1 (en) * 1999-02-04 2002-03-12 Freightliner Llc Seat suspension method
US6371456B1 (en) * 1999-02-04 2002-04-16 Freightliner Llc Seat suspension system
US20090218784A1 (en) * 2006-04-03 2009-09-03 Francois Porcheron Multi-Position Wheelchair for Handicapped People
US20170296411A1 (en) * 2015-01-15 2017-10-19 Innotec Motion GmbH Seating furniture chassis having a height-adjustment seat surface

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