EP1525867A1 - Auxiliary device intended for addition to an article of seating furniture for raising and/or tilting thereof - Google Patents
Auxiliary device intended for addition to an article of seating furniture for raising and/or tilting thereof Download PDFInfo
- Publication number
- EP1525867A1 EP1525867A1 EP04077850A EP04077850A EP1525867A1 EP 1525867 A1 EP1525867 A1 EP 1525867A1 EP 04077850 A EP04077850 A EP 04077850A EP 04077850 A EP04077850 A EP 04077850A EP 1525867 A1 EP1525867 A1 EP 1525867A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- auxiliary device
- article
- support
- relative
- 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
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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
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 Characterized By Structure (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Control And Safety Of Cranes (AREA)
- Invalid Beds And Related Equipment (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
Description
- Comfortable seating furniture is designed primarily to enable good seating, relaxation and rest. Many people, and particularly older people, are however limited in their mobility and motor functions and find it difficult to sit in such an article of furniture. Sitting down usually requires little effort, but the strength in arms and legs required for standing up again is often lacking. In order to obviate this drawback of normally comfortable seating furniture, adjustable armchairs have been specially developed for senior citizens and people with a physical disability: the so-called stand-up chairs. These adjustable chairs are characterized in that a construction is arranged in the chair under the seat which enables raising and tilting of the seat, and often also the seat back. Such stand-up chairs are described inter alia in EP-A-1 031 337, WO-A-98/29082, DE-A-198 44 240, GB-A-2 344 512.
- In these known constructions the raising movement of the chair is combined with the tilting of the chair seat and seat back. Owing to this combined movement the legs of the person sitting in the chair are stretched, while his or her back is pushed forward. Both movements together help the person to stand up without great effort. Conversely, a person standing in front of the chair can be helped into the sitting position by carrying out the combined movement in opposite direction.
- These known constructions have a number of drawbacks. The construction is formed integrally with the chair, is incorporated into the chair in the space under and/or adjacently of the seat. For the user this means that, when standing-up becomes more difficult, he or she must purchase another chair and cannot make use of his/her own familiar, comfortable chair. The choice from the range of stand-up furniture is limited and the investment in a new article of furniture is usually considerable.
- US-A-4 786 107 discloses an auxiliary device intended for addition to an article of seating furniture with a seat back, for instance a chair or settee, which auxiliary device comprises:
- a first frame for placing on the ground;
- a second frame disposed movably relative to the first frame;
- support means present on the second frame for supporting an article of seating furniture; and
- drive means operative between the first frame and the second frame for displacing the second frame relative to those zones of the first frame with which this latter can support on the floor.
-
- A high degree of flexibility in the application and use of the auxiliary device of said type is obtained with an auxiliary device of said type wherein the effective length and/or the effective width of the support means is adjustable.
- The auxiliary device is preferably embodied such that the drive means are adapted to raise and/or tilt the second frame relative to those zones of the first frame with which this latter can support on the floor.
- A very simple and inexpensive, but nevertheless mechanically very stable embodiment of the auxiliary device according to the invention has the special feature that the first frame comprises two frame parts which can swivel in mutually opposing directions, of which one comprises at least one wheel or roller and the other frame part has at least one fixed convex tilting surface such that, when these frame parts are swivelled toward each other, the second frame is displaced relative to those zones of the first frame with which this latter can support on the floor.
- When the position of the first and the second frame is changed, a tilting takes place wherein said frame part rolls over the convex tilting surface, while the other frame part rolls over the ground with the at least one wheel or the at least one roller.
- According to yet another aspect of the invention, the above stated auxiliary device can have the special feature that on its side remote from said wheel or said roller the second frame bears a number of wheels or rollers necessary for mechanical stability which in the lowest position of the second frame, together with said wheel or said wheels or roll or rollers, make the auxiliary device movable over the ground.
- With this embodiment the auxiliary device, optionally with a chair supported thereby, can be moved over the ground easily in said lowest position of the second frame. The wheels or rollers can be fixed or swivellable.
- According to yet another aspect of the invention, the auxiliary device has the special feature that the second frame is provided on its underside with a third frame which is disposed for rotation about a substantially vertical axis relative to the second frame and which supports on the ground in the lowest position of the second frame and in this position rotatably supports the first and second frame. The swivel angular position of the auxiliary device, and thereby that of a chair supported thereby, can hereby be adjusted as desired.
- According to another aspect of the invention, the auxiliary device has the special feature that the effective length and/or the effective width of the first frame is adjustable. It is important that this adjustability can be used such that the first frame substantially does not protrude outside the support means or outside the chair supported thereby. This prevents the possibility of a user or other people bumping against the first frame. It is however recommended to make said length and/or width as great as possible. This enhances the stability of the auxiliary device in combination with the seating furniture supported thereby.
- Attention is generally drawn to the fact that the length and width of the support means, and optionally of the first frame, at the front and the rear can be adjusted together or, if desired, on an individual basis.
- In yet another embodiment, the auxiliary device has the special feature that it comprises fixation means for fixing an article of seating furniture supported by the support means to these support means. Such fixation means can in some circumstances enhance the mechanical stability of the combination of the auxiliary device according to the invention and a chair supported thereby. These fixation means are attached on one side to the article of furniture, for instance to the legs, and on the other side to the support means.
- The invention further relates to an assembly of at least two auxiliary devices as according to the above stated specification for jointly supporting an article of multi-seat furniture. This assembly according to the invention has the special feature that the auxiliary devices are coupled electrically and/or mechanically such that the movements of the second frames relative to the first frames are substantially the same.
- The auxiliary device can be constructed with small overall dimensions. A relatively narrow zone on two sides of the second frame can be used to support a chair. A small remaining zone in the middle of the upper part of the second frame can be higher and provides space for drive means, for instance a hydraulic or electric actuator, which provides for the relative displacement of the second frame and the first frame.
- The invention will now be elucidated with reference to the accompanying drawings of a number of exemplary embodiments, to which the invention is not limited.
- In the drawings:
- Fig. 1, 2 and 3 show side views of an auxiliary device according to the invention in respectively the lowest position or rest position, a raised position and a highest position, in which the second frame is not only raised but has also undergone a forward tilting, wherein the seat back part of a chair is raised further than the front part of the chair;
- Fig. 4, 5 and 6 show side views of the auxiliary devices of Fig. 1, 2 and 3 on smaller scale, wherein a chair is supported by the auxiliary device;
- Fig. 7 shows a more detailed perspective view of a preferred embodiment of the auxiliary device according to the invention;
- Fig. 8 and 9 show respectively the raised and the low or rest position of an auxiliary device, on the one side of which the first frame is provided with a set of wheels and on the other side of which the second frame is provided with a set of wheels;
- Fig. 10 and 11 show respectively the raised and the low or rest position of an auxiliary device, the second frame of which is provided on its underside with a turntable base; and
- Fig. 12 and 13 are perspective views of tubes with support plates for the legs of a chair in two mutually differing, laterally adjusted positions.
-
- The operating principle of the mechanism of
auxiliary device 1 is described with reference to Fig. 1, 2 and 3.Drive 4 is placed between twotorsion tubes torsion tube 2 is one pair ofrods 5, the outer ends of which end in tilting supports 6. Ontorsion tube 3 is mounted one pair ofrods 7, the outer ends of which are provided withsupport wheels 8. From the low or rest position drawn in Fig. 1 the drive rotates the twotorsion tubes support wheels 8 move in the direction of tilting supports 6. The tilting supports tilt about a fixed point. The movement of both pairs ofrods torsion tubes rods 9 provides for the synchronization of the movements of the pair ofrods 5 and the pair ofrods 7. A raised position of the mechanism is drawn in Fig. 2. Fig. 3 shows the highest position of the mechanism. The characteristic of the auxiliary device can be set subject to the lengths of the tworod pairs torsion tubes rotation points - Fig. 4, 5 and 6 show the practical use of
auxiliary device 1 as stand-up aid for use under a comfortable article ofseating furniture 30. From the low or rest position (Fig. 4) the raising and tilting movement are initiated simultaneously at the chosen characteristic of the auxiliary device (Fig. 5). In the highest position (Fig. 6) the chair is raised about 10 cm and the seat part is tilted through an angle of about 15 degrees.Actuator 4 for moving the auxiliary device can take a mechanical or electrical form, with a preference for electrical. The movement of the stand-up aid is controlled by the user seated in the article of furniture. In order to prevent wear to the floor surface by the tilting or wheel supports under the auxiliary device, a wear-resistant strip or shallow U-shaped channel can be arranged on the path of the wheel supports. - Fig. 7 shows the preferred embodiment of the auxiliary device for use as stand-up aid under seating furniture. The support surface for the chair is formed by two
rear plates 12 and twofront plates 13. The right-hand front plate has been removed in Fig. 7. Adjustment of the auxiliary device to the dimensions of the chair is possible in thatrear plates 12 can be displaced relative tofront plates 13 by slidingtubes 14a in or out oftubes 14. In width direction of the chair displacement of the left-hand side of the auxiliary device relative to the right-hand side takes place by slidingtubes 2a, 15a and 3a in or out oftubes Tubes 2a, 3a, 15a can be fixed in a chosen position relative totubes screws same manner tube 14a can be fixed in a chosen position relative totube 14 by means of lockingscrews - In Fig. 8 the preferred embodiment of
auxiliary device 1 for use as stand-up aid under an article of seating furniture is provided with one additional pair ofwheels 16. When the auxiliary device is moved from an active position as shown in Fig. 8 to the lowest position, thesewheels 16 will make contact at a given moment with the floor surface and the auxiliary device will begin to support on thesewheels 16. The arranging of theadditional wheels 16 makes the stand-up aid with chair movable in the lowest or rest position as shown in Fig. 9. - In Fig. 10 the preferred embodiment of
auxiliary device 1 for use as stand-up aid under an article of seating furniture is provided with aturntable base 17. As the auxiliary device is moved from a raised position as shown in Fig. 10 to the lowest position, thisturntable base 17 will make contact at a given moment with the floor surface andauxiliary device 1 will begin to support on thisturntable base 17. The arranging ofturntable base 17 under the stand-up aid with chair provides the option, in the lowest or rest position as shown in Fig. 11, of first rotating the article of furniture before setting the stand-up aid into operation to enable standing up from the chair. When the chair is used at a dining table or writing table, the turntable base provides the opportunity to turn to a position in which there is sufficient space to stand up. - Fig. 12 shows the
tube 14a which bearsrear plate 12 such that it is laterally adjustable as according toarrow 19. This lateral adjustability is realized by making use of aplate 18 which is rigidly coupled totube 14a and provided with continuous slottedholes 20 which extend in transverse direction and are used to securerear plate 12 in a chosen transverse position by means of screw bolts. - Not drawn are clamps which are clamped fixedly to the legs of the article of furniture and fastened by means of screws to the four
plates 18 which support these legs. - Fig. 7 in particular shows clearly that according to the invention the effective length and the effective width of the support means as well as the effective length and the effective width of the first frame are adjustable in this embodiment.
Claims (8)
- Auxiliary device intended for addition to an article of seating furniture with a seat back, for instance a chair or settee, which auxiliary device comprises:a first frame for placing on the ground;a second frame disposed movably relative to the first frame;support means present on the second frame for supporting an article of seating furniture; anddrive means operative between the first frame and the second frame for displacing the second frame relative to those zones of the first frame with which this latter can support on the floor,
the effective length and/or the effective width of the support means is adjustable. - Auxiliary device as claimed in claim 1, wherein the drive means are adapted to raise and/or tilt the second frame relative to those zones of the first frame with which this latter can support on the floor.
- Auxiliary device as claimed in claim 1, wherein the first frame comprises two frame parts which can swivel in mutually opposing directions, of which one comprises at least one wheel or roller and the other frame part has at least one fixed convex tilting surface such that, when these frame parts are swivelled toward each other, the second frame is displaced relative to those zones of the first frame with which this latter can support on the floor.
- Auxiliary device as claimed in claim 3, wherein on its side remote from said wheel or said roller the second frame bears a number of wheels or rollers necessary for mechanical stability which in the lowest position of the second frame, together with said wheel or said wheels or roll or rollers, make the auxiliary device movable over the ground.
- Auxiliary device as claimed in claim 1, wherein the second frame is provided on its underside with a third frame which is disposed for rotation about a substantially vertical axis and which supports on the ground in the lowest position of the second frame and in this position rotatably supports the first and second frame.
- Auxiliary device as claimed in claim 1, wherein the effective length and/or the effective width of the first frame is adjustable.
- Auxiliary device as claimed in claim 1, comprising fixation means for fixing an article of seating furniture supported by the support means to these support means.
- Assembly of at least two auxiliary devices as claimed in any of the foregoing claims, for jointly supporting an article of multi-seat furniture, wherein the auxiliary devices are coupled electrically and/or mechanically such that the movements of the second frames relative to the first frames are substantially the same.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1024576 | 2003-10-21 | ||
NL1024576A NL1024576C2 (en) | 2003-10-21 | 2003-10-21 | Auxiliary device, intended to be added to a seat, for lifting and / or tilting thereof. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1525867A1 true EP1525867A1 (en) | 2005-04-27 |
EP1525867B1 EP1525867B1 (en) | 2007-05-30 |
Family
ID=34386860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04077850A Not-in-force EP1525867B1 (en) | 2003-10-21 | 2004-10-18 | Auxiliary device intended for addition to an article of seating furniture for raising and/or tilting thereof |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060103210A1 (en) |
EP (1) | EP1525867B1 (en) |
AT (1) | ATE363262T1 (en) |
DE (1) | DE602004006688T2 (en) |
NL (1) | NL1024576C2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2486280A (en) * | 2010-12-11 | 2012-06-13 | Willowbrook Furniture Holdings Ltd | A recliner or lift-recliner mechanism for adjustable furniture |
CN104783525A (en) * | 2015-05-06 | 2015-07-22 | 海盐全影家具科技有限公司 | Telescopic device |
WO2019180654A1 (en) * | 2018-03-21 | 2019-09-26 | Benoit Systemes | Device for helping the transition from a seated position to a standing position, and vice versa, mobility platform for seat comprising such a device, and wheelchair |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2551700A (en) * | 2016-06-20 | 2018-01-03 | Motus Mech Limited | Seat back for an article of adjustable furniture |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4786107A (en) * | 1986-11-06 | 1988-11-22 | Foy Crockett | Lifting apparatus for a seating structure |
US4790716A (en) * | 1986-06-03 | 1988-12-13 | Mcconnell Sylvia J | Device for handling a wheelchair |
US5294179A (en) * | 1992-05-11 | 1994-03-15 | Hand Machine Company, Inc. | Retrofittable chair lifting and tilting device |
FR2695813A1 (en) * | 1992-09-24 | 1994-03-25 | Jouk Leo | Seat providing assistance in lifting a person with reduced mobility from the sitting position. |
US5641201A (en) * | 1993-03-02 | 1997-06-24 | American Dream International | Universal lift frame for a chair |
WO1998029082A1 (en) * | 1996-12-19 | 1998-07-09 | Johansson Aake | A chair with a standing-up and a sitting-down aid |
US5895093A (en) * | 1996-05-07 | 1999-04-20 | Casey; Kenneth | Recliner lift chair with swivel base |
DE19844240A1 (en) * | 1998-09-26 | 2000-04-06 | Sichelschmidt Stanzwerk | Arm-chair incorporating an aid for standing up from a sitting position has a housing with seat, frame, back-rest, foot-rest and stand, with two cross-bars possessing adjusting levers connected to drive motors and operating levers |
GB2344512A (en) * | 1998-12-09 | 2000-06-14 | Sichelschmidt Stanzwerk | Chair with standing aid |
EP1031337A1 (en) * | 1999-02-22 | 2000-08-30 | Soweco N.V. | Adjustable chair |
US6478529B1 (en) * | 2000-03-07 | 2002-11-12 | Wheelchair Recline, Inc. | Reclining platform wheelchair support |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4850645A (en) * | 1986-11-06 | 1989-07-25 | Foy Crockett | Lifting apparatus for a seating structure |
US5024486A (en) * | 1990-04-03 | 1991-06-18 | Auel Carl C | All-purpose rocking, swiveling, reclining, and lifting chair |
DE9112558U1 (en) * | 1991-10-09 | 1993-02-04 | Stanzwerk Wetter Sichelschmidt & Co, 5802 Wetter, De | |
US6332232B1 (en) * | 1998-11-16 | 2001-12-25 | Paul F. Neal | Portable easy lifting device |
US20030180132A1 (en) * | 2002-02-14 | 2003-09-25 | Steven Morreim | Mobile lift |
US6997424B2 (en) * | 2003-03-18 | 2006-02-14 | Atkinson Jr Ronald Neil | Lifting apparatus |
US7090297B2 (en) * | 2004-10-13 | 2006-08-15 | La-Z-Boy Incorporated | Heavy lift chair |
-
2003
- 2003-10-21 NL NL1024576A patent/NL1024576C2/en not_active IP Right Cessation
-
2004
- 2004-10-18 EP EP04077850A patent/EP1525867B1/en not_active Not-in-force
- 2004-10-18 DE DE602004006688T patent/DE602004006688T2/en active Active
- 2004-10-18 AT AT04077850T patent/ATE363262T1/en not_active IP Right Cessation
- 2004-10-21 US US10/970,846 patent/US20060103210A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4790716A (en) * | 1986-06-03 | 1988-12-13 | Mcconnell Sylvia J | Device for handling a wheelchair |
US4786107A (en) * | 1986-11-06 | 1988-11-22 | Foy Crockett | Lifting apparatus for a seating structure |
US5294179A (en) * | 1992-05-11 | 1994-03-15 | Hand Machine Company, Inc. | Retrofittable chair lifting and tilting device |
FR2695813A1 (en) * | 1992-09-24 | 1994-03-25 | Jouk Leo | Seat providing assistance in lifting a person with reduced mobility from the sitting position. |
US5641201A (en) * | 1993-03-02 | 1997-06-24 | American Dream International | Universal lift frame for a chair |
US5895093A (en) * | 1996-05-07 | 1999-04-20 | Casey; Kenneth | Recliner lift chair with swivel base |
WO1998029082A1 (en) * | 1996-12-19 | 1998-07-09 | Johansson Aake | A chair with a standing-up and a sitting-down aid |
DE19844240A1 (en) * | 1998-09-26 | 2000-04-06 | Sichelschmidt Stanzwerk | Arm-chair incorporating an aid for standing up from a sitting position has a housing with seat, frame, back-rest, foot-rest and stand, with two cross-bars possessing adjusting levers connected to drive motors and operating levers |
GB2344512A (en) * | 1998-12-09 | 2000-06-14 | Sichelschmidt Stanzwerk | Chair with standing aid |
EP1031337A1 (en) * | 1999-02-22 | 2000-08-30 | Soweco N.V. | Adjustable chair |
US6478529B1 (en) * | 2000-03-07 | 2002-11-12 | Wheelchair Recline, Inc. | Reclining platform wheelchair support |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2486280A (en) * | 2010-12-11 | 2012-06-13 | Willowbrook Furniture Holdings Ltd | A recliner or lift-recliner mechanism for adjustable furniture |
WO2012076857A1 (en) * | 2010-12-11 | 2012-06-14 | Willowbrook Furniture (Holdings) Limited | An integrated recliner or lift-recliner mechanism for adjustable furniture |
GB2486280B (en) * | 2010-12-11 | 2015-11-18 | Willowbrook Furniture Holdings Ltd | Recliner or lift-recliner mechanism for adjustable furniture |
CN104783525A (en) * | 2015-05-06 | 2015-07-22 | 海盐全影家具科技有限公司 | Telescopic device |
WO2019180654A1 (en) * | 2018-03-21 | 2019-09-26 | Benoit Systemes | Device for helping the transition from a seated position to a standing position, and vice versa, mobility platform for seat comprising such a device, and wheelchair |
FR3079119A1 (en) * | 2018-03-21 | 2019-09-27 | Benoit Systemes | ASSEMBLY DEVICE FOR ASSEMBLY OF THE SEAT POSITION AT THE STAND POSITION, AND REVERSE, MOBILITY PLATFORM FOR A SEAT COMPRISING SUCH A DEVICE, AND A ROLLING SEAT |
Also Published As
Publication number | Publication date |
---|---|
NL1024576C2 (en) | 2005-04-22 |
DE602004006688T2 (en) | 2008-01-24 |
ATE363262T1 (en) | 2007-06-15 |
DE602004006688D1 (en) | 2007-07-12 |
US20060103210A1 (en) | 2006-05-18 |
EP1525867B1 (en) | 2007-05-30 |
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