EP4154858A1 - Siège doté d'une aide à la levage - Google Patents

Siège doté d'une aide à la levage Download PDF

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Publication number
EP4154858A1
EP4154858A1 EP22196609.6A EP22196609A EP4154858A1 EP 4154858 A1 EP4154858 A1 EP 4154858A1 EP 22196609 A EP22196609 A EP 22196609A EP 4154858 A1 EP4154858 A1 EP 4154858A1
Authority
EP
European Patent Office
Prior art keywords
backrest
seat part
base frame
seating furniture
stand
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.)
Withdrawn
Application number
EP22196609.6A
Other languages
German (de)
English (en)
Inventor
Manfred Schoissengeyer
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.)
Joka Kapsamer GmbH
Original Assignee
Joka Kapsamer GmbH
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 Joka Kapsamer GmbH filed Critical Joka Kapsamer GmbH
Publication of EP4154858A1 publication Critical patent/EP4154858A1/fr
Withdrawn legal-status Critical Current

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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
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C9/00—Stools for specified purposes
    • A47C9/002—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects

Definitions

  • the invention relates to a piece of seating furniture with a stand-up aid comprising a base frame, a backrest and a seat surface that can be displaced relative to the base frame.
  • the DE202014009453U1 shows, for example, a chair with a base frame, the base frame having the four chair legs and a support surface for the seat.
  • the seat and backrest are designed in one piece and rest on a swivel joint arranged below the support surface between the left and right pair of chair legs and on a rigid cross brace.
  • This swivel joint is connected to a U-shaped bracket on each end face, the long legs of which run essentially parallel to the seat surface.
  • the upper leg of each bracket forms an armrest. If a seated user presses on the armrests, the seat and backrest tilt forward, making it easier for the user to stand up.
  • the disadvantage of the prior art is that the people for whom the stand-up aid is intended are usually not only restricted in terms of their mobility, but also in their motor skills and either cannot control or achieve the required pressure force to reach the stand-up position. If the required force for tilting cannot be applied to the armrests by the person, the stand-up position will not be reached. On the other hand, excessive forces can lead to excessive tilting and increase the risk of falling. Furthermore, the tipping also leads to a horizontal displacement of the seat plate, which changes the relative position of the person's center of gravity and their feet, which further increases the risk of falling.
  • the invention is therefore based on the object of designing a piece of seating furniture with a stand-up aid for people who are not only restricted in their mobility but also in their motor skills in such a way that they can stand up and sit down safely with little effort and simple design means.
  • the invention solves the problem in that a seat part forming the seat surface is mounted at a distance from the base frame so that it can pivot about an axis running parallel to the backrest between a seated position and a stand-up position, with the seat part in the stand-up position being positioned on the side of the axis facing away from the backrest Damping element and is supported in the sitting position on a lying on the side of the axis facing the backrest damping element on the base frame. Since the seat part is spaced from the base frame and is pivotably mounted, the seat part can be pivoted between the seated position and the stand-up position solely by shifting the body weight of the seated person. No other means, such as armrests, are absolutely necessary.
  • the front side of the seat part opposite the backrest is lower than the rear side of the seat part facing the backrest; in the sitting position, the rear side of the seat part is preferably lower than the front side. Since the seat portion is not deformed to change the posture but pivoted, the effort required to change the posture is small.
  • the spacing of the seat part from the base frame prevents part of the base frame from blocking the pivoting.
  • the damping element lying on the side of the axle facing away from the backrest forms a support
  • the damping element lying on the side of the axle facing the backrest forms the support.
  • the seat part If the seat part is swiveled into one of the two positions, its rotation is first gently slowed down by the respective damping element and with it the body of the person sitting loaded as little as possible. In the preferably stop-limited end position of the damping element, this forms a support for the seat part.
  • the braking of the rotation and the maximum pivoting angle assigned to the respective positions can be adjusted via the spacing of the seat part from the base frame and the size or damping of the damping elements.
  • the seat part is formed by a seat plate.
  • the seat part can be pivoted, for example, via a hinge.
  • the seating furniture may further include armrests mounted on the base frame or the seat portion.
  • the axis be arranged in the half of the seat part facing away from the backrest, preferably in the last third of the seat part facing away from the backrest.
  • the damping element can, for example, comprise damping bodies made from a correspondingly reversibly compressible foam.
  • the damping elements are selected in such a way that the position of the seat plate in the sitting position enables comfortable sitting and the position of the seat plate in the standing position makes it easier for the person sitting to get up.
  • the damping elements are arranged in such a way that, depending on the position, they support the seat part on opposite end sections of the seat part.
  • the seat part rests on both damping elements in a neutral position lying between the seated position and the stand-up position.
  • the neutral position of the seat part is preferably the position in which no external force causes the seat part to rotate. In the neutral position, the seat part only rests on the damping elements, but according to the invention these do not support the seat part in their end position.
  • the seat part is preferably always in contact with at least one damping element, regardless of its position, so that the seat part cannot pivot in an uncontrolled manner even when the position of the piece of seating furniture changes.
  • the damping of the damping elements and their arrangement chosen so that the seat surface of the seat part runs parallel to the ground in the neutral position.
  • each damping element can have two damping bodies which are arranged at two adjacent corners of the base frame.
  • the damping bodies can be arranged on the side of the seat part facing the base frame.
  • a particularly robust and at the same time simple and cost-effective pivoting of the seat part can be achieved in that the seat part is pivotably mounted by squared timber with a triangular cross-section resting on the base frame.
  • the squared timber is connected to the base frame with one side of the shell, so that the edge opposite this side of the shell forms the support for the seat part.
  • a pivotable mounting of the seat part can be achieved with particularly simple constructive means, which above all facilitates series production of the chair according to the invention and reduces the maintenance effort.
  • the compression hardness of the damping element on the side of the axle facing the backrest exceeds the compression hardness of the damping element on the side of the axle facing away from the backrest.
  • the compression hardness is the pressure that is required to compress the damping element to 40% of its normal height. Due to the higher compressive strength of the damping element lying on the rear side, ie the side of the axle facing the backrest, the seat plate does not pivot backwards too much in the sitting position due to the body weight of the seated person and thus enables a Sitting in a natural posture.
  • the lower compressive strength of the damping element on the front side ie on the side of the axis facing away from the backrest, enables this damping element to be compressed more easily by the body weight of the seated person and thus makes it easier to pivot the seat plate into the stand-up position.
  • the rear damping element is preferably prestressed and, due to its higher compression hardness than the front damping element, facilitates pivoting into the standing position, since the decompression force released by the rear damping element exceeds the compression force to be applied to the front damping element.
  • the compression hardness of the damping element lying on the side of the axle facing the backrest can preferably be 4-9 kPa, more preferably 5-7 kPa.
  • the density of the damping element lying on the side of the axle facing the backrest can preferably be 20-90 kg/m 3 , more preferably 40-70 kg/m 3 .
  • the compressive strength of the damping element on the side of the axle facing away from the backrest can preferably be 0.5-4 kPa, more preferably 2.5-4 kPa.
  • the density of the damping element lying on the side of the axle facing away from the backrest can preferably be 5-70 kg/m 3 , more preferably 25-50 kg/m 3 .
  • the backrest and base frame are firmly connected to one another. This reduces the number or the mass of the parts to be pivoted, which makes it easier, in particular, for people with a low body weight to pivot the seat part between the positions.
  • the connection between the backrest and the base frame makes production easier, since only the seat plate that forms the seat part has to be mounted on the base frame.
  • an armrest pivoted on the backrest can be supported on the seat part. This allows the sitter to press down on the armrest exert more force to pivot into the stand-up position on the seat. Since the backrest is firmly connected to the base frame, the counteracting force that occurs when you press on the armrest is introduced into the backrest and the base frame, allowing the seat part to pivot.
  • the armrest can be articulated both on the backrest and on the seat part.
  • one or more armrests can be provided for the chair without great manufacturing effort if an armrest is provided which is fixedly connected to the seat part.
  • the armrest does not have to include any moving parts and can be pre-assembled directly onto the seat part.
  • the seat part is pivoted together with the armrest, with a weight force on the side of the armrest facing away from the backrest favoring pivoting of the seat part in the stand-up position.
  • the backrest and seat part are firmly connected to one another.
  • another person who is, for example, next to or behind the backrest can pull on the backrest or press against it. This exerted force is transmitted via the backrest to the seat part that is firmly connected to it and makes it easier for the person sitting to pivot.
  • one or more armrests can be provided without great manufacturing effort if both the backrest and the seat part are firmly connected to an armrest.
  • the armrest can be easily mounted on the backrest and the seat part, since their position relative to one another does not change. As a result, the seat part, backrest and armrest are pivoted together.
  • An inventive piece of seating furniture with a stand-up aid comprises a base frame 1 and a seat part 3 having a seat surface 2.
  • This seat part 3 can be pivoted about an axis 4 which is spaced apart from the base frame 1 and runs parallel to a backrest 5 of the seat furniture item. Accordingly, the seat part 3 is mounted at a distance from the base frame 1 so that it can pivot about the axis 4 .
  • the seat part 3 is between a in the Fig. 1b seated position shown and one in the 1c Stand-up position shown displaceable, wherein for the seat part 3 damping elements 6, 7 are provided, which support the seat part 3 in the sitting or standing position.
  • the damping element 6 lying on the side of the axis 4 facing away from the backrest 5 forms a support and in the seated position, the damping element 7 lying on the side of the axis 4 facing the backrest 5 forms the support.
  • the axis 4 is arranged in the half of the seat part 3 facing away from the backrest 5, preferably in the last third of the seat part 3 facing away from the backrest 5, since this makes unintentional pivoting between the positions more difficult.
  • a squared timber 8 rests on the base frame 1, which has a preferably triangular cross-section and forms the bearing for the seat part 3.
  • figs 1a - 1c are backrest 5 and seat part 3 firmly connected.
  • the backrest 5 is fixedly connected to the base frame 1, and according to a preferred embodiment, an armrest 9 is rotatably articulated on the backrest 5 and supported on the seat part 3, preferably also articulated.
  • the armrest 9 can be firmly connected to both the backrest 5 and the seat part 3, so that both the backrest 5, the seat part 3 and the armrest 9 can be pivoted together about the axis 4.
  • the backrest 5 is analogous to the embodiment of FIG figs 2a - 2c firmly connected to the base frame 1.
  • the armrest 9 is not connected to the backrest 5, but only to the seat part 3.

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)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Special Chairs (AREA)
EP22196609.6A 2021-09-22 2022-09-20 Siège doté d'une aide à la levage Withdrawn EP4154858A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50750/2021A AT525504A1 (de) 2021-09-22 2021-09-22 Sitzmöbel mit einer Aufstehhilfe

Publications (1)

Publication Number Publication Date
EP4154858A1 true EP4154858A1 (fr) 2023-03-29

Family

ID=83398265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22196609.6A Withdrawn EP4154858A1 (fr) 2021-09-22 2022-09-20 Siège doté d'une aide à la levage

Country Status (2)

Country Link
EP (1) EP4154858A1 (fr)
AT (1) AT525504A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US79656A (en) * 1868-07-07 Edson haetwell
DE102006029085A1 (de) * 2006-03-16 2007-09-20 Ernst-Ulrich Mathieu Sitz mit zweigeteilter Pendelsitzfläche
US20070252419A1 (en) * 2004-09-03 2007-11-01 Yukie Takahashi Seating Mechanism and Chair
DE202014009453U1 (de) 2014-11-27 2015-02-05 Etage8 Gmbh Stuhl als Aufstehhilfe mit kippbarer Sitzschale durch Herunterdrücken der Armlehnen
CN105725558A (zh) * 2016-03-24 2016-07-06 徐州猎奇商贸有限公司 一种办公用椅
EP3437519A1 (fr) * 2017-08-05 2019-02-06 BOCK 1 GmbH & Co. KG Mécanisme basculant

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060284462A1 (en) * 2005-06-15 2006-12-21 Cheng Yu W Medical chair
WO2016040164A1 (fr) * 2014-09-08 2016-03-17 Splane Design Associates, Inc. Dispositif d'assistance de siège
KR101894492B1 (ko) * 2016-04-07 2018-09-03 금오공과대학교 산학협력단 가스실린더와 탄성체를 이용한 기립보조의자
KR102306638B1 (ko) * 2019-09-27 2021-09-30 경북보건대학교 산학협력단 기립보조의자

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US79656A (en) * 1868-07-07 Edson haetwell
US20070252419A1 (en) * 2004-09-03 2007-11-01 Yukie Takahashi Seating Mechanism and Chair
DE102006029085A1 (de) * 2006-03-16 2007-09-20 Ernst-Ulrich Mathieu Sitz mit zweigeteilter Pendelsitzfläche
DE202014009453U1 (de) 2014-11-27 2015-02-05 Etage8 Gmbh Stuhl als Aufstehhilfe mit kippbarer Sitzschale durch Herunterdrücken der Armlehnen
CN105725558A (zh) * 2016-03-24 2016-07-06 徐州猎奇商贸有限公司 一种办公用椅
EP3437519A1 (fr) * 2017-08-05 2019-02-06 BOCK 1 GmbH & Co. KG Mécanisme basculant

Also Published As

Publication number Publication date
AT525504A1 (de) 2023-04-15

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