EP2808001A1 - Sitz-Vorrichtung mit Aufstehhilfe - Google Patents

Sitz-Vorrichtung mit Aufstehhilfe Download PDF

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Publication number
EP2808001A1
EP2808001A1 EP13005462.0A EP13005462A EP2808001A1 EP 2808001 A1 EP2808001 A1 EP 2808001A1 EP 13005462 A EP13005462 A EP 13005462A EP 2808001 A1 EP2808001 A1 EP 2808001A1
Authority
EP
European Patent Office
Prior art keywords
seat
armrest
holder
seating device
seating
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.)
Granted
Application number
EP13005462.0A
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English (en)
French (fr)
Other versions
EP2808001B1 (de
Inventor
Anthonius Johannes Tolboom
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2808001A1 publication Critical patent/EP2808001A1/de
Application granted granted Critical
Publication of EP2808001B1 publication Critical patent/EP2808001B1/de
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Anticipated expiration legal-status Critical

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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

Definitions

  • the invention relates to a seating device including holder, a seat borne by the holder and at least one armrest, wherein the seat is transferable between a normal position of use and a forwardly tilted rising position.
  • the invention particularly relates to a chair having such a seat.
  • WO 85/00006 shows a chair wherein the armrest is hinged at the rear to the backrest and is hinged at the front to a first rod of a pair of rods, the second rod of which is hinged to the frame of the chair and with one end is connected to the seat so as to slide.
  • the seat is furthermore hinged to another rod, which at the rear is connected to the frame and forms a kind of scissors with the said second rod.
  • WO 2011/141617 shows a chair having an operable seat, wherein by pressing the armrest downwards a four-rod mechanism forming the connection between seat and frame is operated in order to lift the seat and tilt it forward to some extent.
  • a seating device comprising a holder, a seat and at least one armrest, preferably two armrests, wherein the seat is movably attached to the holder for transfer between a substantially horizontal seating position and a forwardly tilted rising position, furthermore comprising an operation mechanism for the transfer of the seat from the seating position to the rising position, wherein the armrest is part of the operation mechanism and for that purpose is movably attached to the holder, in particular so as to move in a vertical plane, for transfer between a normal position of use and a starting position that is situated higher and from that position can be pressed downwards into an operation position that is situated lower than the starting position while transferring the seat into the rising position.
  • the armrest can be placed in a higher position for starting the operation, the user's hands can remain at a higher level during the process of pressing down the armrests, thus enhancing the user's stability while rising.
  • the armrest will usually extend substantially horizontally.
  • the holder in case of a chair will be a chair frame.
  • the holder is composed, for instance a wall to which the arm rest is attached and a floor on which the seat is supported. Toilet arrangements and shower seating arrangements can also be considered.
  • the armrests can in that case also be attached to a support for seat, which support is attached to the floor, such as a toilet bowl.
  • the armrest can be pressed downwards into an end operation position corresponding with the position of use.
  • the user's hands are thus in a stable end position, corresponding with that of a normal seating device, in particular a chair, and not (much) lower as is the case in the said known chairs.
  • the armrest is hinged to the holder. In the starting position the armrest can extend upwardly inclined from the hinge.
  • the armrest is attached to the holder near its rear end, as a result of which at the location where the user engages the armrest, in many cases at the front, the stroke can be large.
  • the seat is hinged to the holder near its front edge.
  • both armrests can be connected to each other to form an armrest set that can be moved as one unity, as a result of which the user's stability when rising can be enhanced.
  • both armrests are each individually hinged to the holder.
  • the operation mechanism is disposed on one side only, preferably however on both sides, in which case both armrests are part of operation mechanisms.
  • the seating device can be provided with a locking device for locking the armrest in the position of use and with operation means for unlocking the locking device.
  • the operation means may then comprise an operation member in the front end of the armrest. Thus inadvertent activation of the operation mechanism is prevented. The armrest cannot be lifted then.
  • the operation mechanism comprises an operation rod, which with its upper end is rotatably connected to the armrest and with its lower end is rotatably connected to a further part of the operation mechanism.
  • the further part of the operation mechanism can be accommodated in a chamber provided in the holder, adjacent the seat, thus reducing the risk of injury.
  • the upper end of the operation rod can be transferable along the armrest between a passive position and an active position, wherein in the active position of the upper end of the operation rod, the operation rod takes up an active orientation with an angle relative to the vertical that is larger than in the passive orientation of the operation rod in which the upper end is in the passive position.
  • the operation rod is placed in an orientation that is advantageous for transmission of forces during rising.
  • the rearwardly opening angle between the operation rod and the armrest preferably always exceeds 90 degrees. In the position of use, wherein the forces on the armrest are small, the operation rod can form a support for the armrest.
  • the active position of the upper end of the operation rod is situated closer to the front end of the armrest than the passive position thereof.
  • Said locking device can be active in locking the upper end of the operation rod in the passive position, in order to prevent inadvertent operation.
  • the seating device can be provided with a retaining member for keeping the upper end of the operation rod in the active position, wherein the upper end preferably comprises a retaining pin that can be moved in and out of the retaining member.
  • the seating device can be provided with release means for urging the upper end of the operation rod out of the retaining member, so that the upper end is able to move back again to the passive position for normal use or for a next rising action.
  • the release means comprise a release member that is prebiassed at accommodation of the upper end/retaining pin of the operation rod in the retaining member for generating a force urging said upper end, in particular the retaining pin, out of the retaining member. In that way it can be achieved that immediately following a rising action the operation mechanism is able to return to a passive orientation again.
  • the release means are operable by means of an auxiliary operation mechanism, which auxiliary operation mechanism comprises the armrest.
  • the auxiliary operation mechanism may in a further compact embodiment comprise an auxiliary operation rod movable along, in particular in, the armrest.
  • the release means are operable by the auxiliary operation mechanism for after reaching the position of use of the armrest urging the upper end of the operation rod out of the retaining member. In that way it can be achieved that immediately following a rising action the operation mechanism is able to return to a passive orientation again.
  • the other end, the lower end, of the operation rod can be rotatably connected to the one leg of a rocker lever, having two legs and in between is rotatably attached to the holder, and with the other leg is movably connected to the seat.
  • the downward motion of the armrest and thus the operation rod is converted by the rocker lever into an upward tilting motion of the seat.
  • the rocker lever with its other leg through intermediary of a sliding joint, can be connected to the seat so as to slide, wherein the sliding joint is attached to the seat by means of a hinge joint.
  • a shock absorber which can be part of the sliding joint, can be placed between the other leg and the seat.
  • the holder will be formed by a chair frame, wherein the chair frame furthermore comprises a back part, wherein the armrests are hinged to the back part.
  • the back part can be formed by upright frame parts, in between which for instance a cloth is stretched, or by a rigid backrest also functioning as a frame.
  • the armrests can be connected to each other by a transverse member situated behind the back part, which transverse member preferably is at least locally spaced apart from the back part. In that way a grip is provided for moving the chair.
  • the back part can furthermore be provided with a stop for the armrest against its downward movement relative to the normal position of use.
  • the invention provides a chair comprising a frame, a seat and at least one armrest, wherein near its front side the seat is hinged to the frame, for transfer between a substantially horizontal seating position and a forwardly tilted rising position, furthermore comprising an operation mechanism for the transfer of the seat from the seating position to the rising position, wherein the armrest is part of the operation mechanism and for that purpose is attached to the frame so as to move, in particular so as to hinge, in particular so as to move in a vertical plane, for transferring it downwards between a starting position and a lower end operation position while urging the seat into the rising position.
  • the starting position can be situated higher than the normal position of use and the end operation position can correspond with the normal position of use.
  • the operation mechanism can be built in accordance with the embodiments thereof described above.
  • the invention provides a seating device comprising a holder, a seat and at least one armrest, wherein near the front side the seat is hinged to the holder for transfer between a substantially horizontal seating position and a forwardly tilted rising position, further comprising an operation mechanism for the transfer of the seat from the seating position to the rising position, wherein the armrest is part of the operation mechanism and for that purpose above the rear side of the seat is attached to the holder so as to move, in particular so as to hinge, in particular so as to move in a vertical plane, for by exerting pressure thereon transferring it downwards between a starting position and a lower end operation position while urging the seat into the rising position.
  • the starting position can be situated higher than the normal position of use and the end operation position can correspond with the normal position of use.
  • the operation mechanism can be built in accordance with the embodiments thereof described above.
  • the seating device according to the invention designed like a chair, can be designed lightweight and can be compact. Contrary to motor-driven rising chairs, the invention is particularly suitable for use in dining room chairs, waiting room chairs and meeting room chairs.
  • US 3.259.427 shows a chair without armrests, the seat of which is provided with projecting rods at the front side, which rods form levers for allowing the seat to tilt upwards, in one embodiment by exerting downward pressure on the levers, in another embodiment by exerting an upward pull on the levers.
  • a chair having a seat that can be adjusted relative to the frame, wherein the seat can be tilted rearward by means of a gas jack that is activated by means of a lever that is hinged to the armrest.
  • FR 2.639.807 shows a chair having armrests that are able to tilt forward over a small distance about a hinge situated below the seat, for releasing a gas jack for tilting the seat forward.
  • US 2010/0141003 describes a chair having an armrest that can be vertically pushed down with which a cable-pulley system is operated for tilting the seat forward.
  • the chair 80 of figure 1 comprises a frame 81 having legs 82, a backrest 18, a seat 21 and armrests 1.
  • the seat 21 is attached to the frame 81 by means of hinges 14 for a swinging motion in directions F and with its rear edge it freely supports on a stop 19 that is fixed to the frame 81.
  • the armrests 1 are attached by hinges 10 to the backrest 18 (or a part of the frame 81 if it is situated there to support a backrest attached thereto) and they can be swung in directions A. Behind hinges 10 and behind backrest 19 the armrests 1 can be connected to each other by a transverse member 1 a, so that they form one U-shaped unity. Alternatively they can be attached by means of a hinge to an armrest end portion, that is stationarily attached to the backrest. Behind the backrest 18, the transverse member 1a may form a free grip for a hand. At locations further to the fore the armrests 1 are supported by a link rod or operation rod 8, yet to be discussed. In the operation position shown, the armrests 1 near the backrest 18 rest on fixed stops or support surfaces 20. The rearwardly opening angle ⁇ between each rod 8 and armrest 1 is obtuse.
  • each of the armrests 1 a slot 6 is accommodated in which slot a pin-shaped upper end 5 of the rod 8 is accommodated so as to slide in directions C1,2.
  • the slot 6 is provided with an upwardly turned retaining end 7, in which the pin 5 can be retained.
  • both (preferably hollow) armrests 1 is furthermore accommodated (preferably in a chamber formed in the armrest) a release mechanism for urging the said pin 5 out of the retaining end 7.
  • Said release mechanism comprises an unblocking pull rod 9, which at the one end is provided with a spring lip 9a and at the other end with a drive plate 9b which at the location of 9d is hinged (directions B) to the armrest 1 and on which a pin 9e is attached extending in stationary slot 9f in backrest 18 and can be slid in there in directions K.
  • each armrest 1 thus has a facility to extend the stroke length of the respective unblocking pull rod 9 with springy element 9a.
  • the rod 9 can be transferred within the said armrest 1 in the directions G.
  • each armrest 1 is furthermore accommodated a locking/unlocking rod 3, which is tiltable about hinge 4 in directions H1,2 and at the one end, the front end, is provided with an operation knob 2 and at the opposite rear end is provided with a stop 3a for in the locking position securing the pin 5 in the rear end of the slot 6, the passive position.
  • a locking/unlocking rod 3 which is tiltable about hinge 4 in directions H1,2 and at the one end, the front end, is provided with an operation knob 2 and at the opposite rear end is provided with a stop 3a for in the locking position securing the pin 5 in the rear end of the slot 6, the passive position.
  • the rod 8 With its lower end the rod 8 is rotatably attached by hinge 8a to the front arm 11 a of a rocker lever 11, which at the location of 12 is attached to the frame 81 so as to hinge in directions E.
  • the right arm 11 b of the rocker lever 11 is provided with a pin 13, which is slidable in directions J in a slot 15 provided on the seat 21.
  • the pin 13 is furthermore rotatably attached to the end of a shock absorber 16, which at the other end is attached to the seat 21 by a stationary hinge 17.
  • the hinge 8a, the rocker lever 11 and the shock absorber 16 can be accommodated in a chamber (not shown) in the frame 81.
  • both seat 21 and armrests 1 are blocked because the locking 3a in question blocks pin 5 in slot 6 of the rod 8.
  • the armrests 1 cannot be moved downwards because of stopping against stops or support surfaces 20.
  • the seat 21 cannot be moved upwards because the rods 8 stop the rocker levers 11 from rocking so that the arms 11 b and thus the pins 13 retain their positions.
  • each drive plate 9b will furthermore move the respective unblocking pull rod 9 with springy element 9a forward (G1, figure 2C ) by rotating (B1) the drive plate 9b about hinge point 9d on armrest 1, urged by fixed pin 9e which will follow the slot 9f in the backrest 18.
  • the springy element 9a on unblocking pull rod 9 will now release the retaining end 7 in armrest 1, so that the pin 5 is able to get in front of or in the retaining end 7.
  • the pins 13 remain in their places in the rear end of the slots 15 and the seat 21 remains supported on stop 19.
  • each pin 5 reliably, direction C3, arrives in its active position in retaining end 7 and due to downward rotation (A2) of the armrests (which as a result of the transverse member 1 a move as one unity and therefore synchronously) on both sides, via operation rod 8, the rocker lever 11 in question will be rotated about hinge point 12, direction E1.
  • the forwardly tilted, more vertical orientation of the rods 8 here enhances the transmission of forces. Due to the tilting of the rocker lever 11 the seat 21, and with it (via shock absorber 16) pin 13, will be moved upwards from the seating position of figure 1 , tilt, about hinge point 14, direction F1.
  • pin 13 is able to move forwards (J1) in slot 15 the connection between hinges 12 and 17 may increase in length in order to permit a rotation of the seat 21 about hinge 14. Due to the forward motion of pin 13 in slot 15, pin 13, pulls out the shock absorber 16 that is also attached to seat 21 via attachment point 17.
  • each armrest 1 contacts blocking surface 20 because of the downward force, see figures 4 and 4A , the unblocking pull rod 9 with springy element 9a is pulled into blocking recess 7 above blocking cam 5 of pressure rod 8 via drive plate 9b. At reduction or ending the downward force on armrests 1 exerted by the user, each springy element 9a will push (C4) blocking cam 5 of pressure 8 out of the blocking recess 7.
  • both armrests 1 support on stops or support surfaces 20, in an orientation corresponding with that of the position of use.
  • the path of pressing the armrests 1 down is in this case above the position of use of the armrests, so that the user when rising does not need to go down with his/her arms too much, as is the case in the known chairs, which would be disadvantageous for the transmission of forces and the user's posture.
  • the pin 5 of pressure rod 8 is now able to move freely rearward in slot 6 of armrest 1, direction C2, see figure 5 and 5A , which is induced by the seat 2 tilting back as a result of gravity and urges the stop 3a out of the way (H1) which after the pin 5 has arrived at the end of the slot 6 snaps back again, H2.
  • the pin 13 is moved back in slot 15 (J2) so that the shock absorber 16 becomes active and the seat 21 is able to hinge back about hinge point 14 in a cushioned manner to the initial position or resting orientation of figure 1 .
  • Figures 6A-D show another, simple release mechanism in an armrest 101, preferably in both armrests, of a seating device, in this case chair, according to the invention.
  • Said release mechanism comprises an elongated leaf spring 109 having a free end 109a and an end 109b that in a clamped manner is attached in the armrest 101.
  • the leaf spring 109 is elastically deformable in the plane of the drawing, wherein figure 6A shows the relaxed position.
  • the pin 105 can be slid in the directions C1,2 within the slot 106 in the armrest 101.
  • the end of the slot 106 that is distal relative to the backrest 118 is provided with a retaining end 107 having an inclined run-in edge 107a and an upright stop edge 107b for stopping the pin 105 in proximal direction.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Seats For Vehicles (AREA)
EP13005462.0A 2012-11-23 2013-11-21 Sitz-Vorrichtung mit Aufstehhilfe Active EP2808001B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1039910A NL1039910C2 (nl) 2012-11-23 2012-11-23 Opstahulp.

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP19175439.9 Division-Into 2019-05-20

Publications (2)

Publication Number Publication Date
EP2808001A1 true EP2808001A1 (de) 2014-12-03
EP2808001B1 EP2808001B1 (de) 2020-04-29

Family

ID=47790424

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13005462.0A Active EP2808001B1 (de) 2012-11-23 2013-11-21 Sitz-Vorrichtung mit Aufstehhilfe

Country Status (4)

Country Link
EP (1) EP2808001B1 (de)
DK (1) DK2808001T3 (de)
ES (1) ES2807892T3 (de)
NL (1) NL1039910C2 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9861542B2 (en) 2015-06-19 2018-01-09 Senior Life Llc Lift-assist chair
DE102017114813A1 (de) * 2017-07-03 2019-01-03 René Heller Aufsetzbarer toilettensitz
EP3988067A1 (de) 2020-10-21 2022-04-27 Anthonius Johannes Tolboom Sitz-vorrichtung
US11957282B2 (en) 2021-06-03 2024-04-16 Home Furnishings Resource Group Inc. Lift assist device for a bathroom

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US170293A (en) * 1875-11-23 Improvement in reclining rocking-chairs
US3259427A (en) 1965-10-18 1966-07-05 Ray S Wiest Leverage seat lifts
WO1985000006A1 (en) 1983-06-18 1985-01-03 Paul Andrew Boardman Armchair with tiltable seat
FR2639807A1 (fr) 1988-12-01 1990-06-08 Jouk Leon Siege a assise pivotante
US20050040688A1 (en) 2003-06-19 2005-02-24 Laffin Francois Xavier Body support chair with automatic modification of the back inclination
US20050039302A1 (en) 2003-06-19 2005-02-24 Laffin Francois Xavier Universal handle and body-supporting chair utilizing same
GB2460685A (en) 2008-06-05 2009-12-09 Susan Walsh Chair having a support structure to facilitate ease of exit from and entry to the chair
US20100141003A1 (en) 2008-12-09 2010-06-10 Combs John A Chair lift
WO2011141617A1 (en) 2010-05-14 2011-11-17 Jorma Eerola Seat assembly

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US170293A (en) * 1875-11-23 Improvement in reclining rocking-chairs
US3259427A (en) 1965-10-18 1966-07-05 Ray S Wiest Leverage seat lifts
WO1985000006A1 (en) 1983-06-18 1985-01-03 Paul Andrew Boardman Armchair with tiltable seat
FR2639807A1 (fr) 1988-12-01 1990-06-08 Jouk Leon Siege a assise pivotante
US20050040688A1 (en) 2003-06-19 2005-02-24 Laffin Francois Xavier Body support chair with automatic modification of the back inclination
US20050039302A1 (en) 2003-06-19 2005-02-24 Laffin Francois Xavier Universal handle and body-supporting chair utilizing same
GB2460685A (en) 2008-06-05 2009-12-09 Susan Walsh Chair having a support structure to facilitate ease of exit from and entry to the chair
US20100141003A1 (en) 2008-12-09 2010-06-10 Combs John A Chair lift
WO2011141617A1 (en) 2010-05-14 2011-11-17 Jorma Eerola Seat assembly

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9861542B2 (en) 2015-06-19 2018-01-09 Senior Life Llc Lift-assist chair
US10327970B2 (en) 2015-06-19 2019-06-25 Senior Life, LLC Lift-assist chair
DE102017114813A1 (de) * 2017-07-03 2019-01-03 René Heller Aufsetzbarer toilettensitz
DE102017114813B4 (de) * 2017-07-03 2019-02-07 René Heller Aufsetzbarer toilettensitz
EP3988067A1 (de) 2020-10-21 2022-04-27 Anthonius Johannes Tolboom Sitz-vorrichtung
US11957282B2 (en) 2021-06-03 2024-04-16 Home Furnishings Resource Group Inc. Lift assist device for a bathroom

Also Published As

Publication number Publication date
NL1039910C2 (nl) 2014-05-27
DK2808001T3 (da) 2020-07-20
ES2807892T3 (es) 2021-02-24
EP2808001B1 (de) 2020-04-29

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