EP0465549A1 - Lit - Google Patents

Lit

Info

Publication number
EP0465549A1
EP0465549A1 EP19900905731 EP90905731A EP0465549A1 EP 0465549 A1 EP0465549 A1 EP 0465549A1 EP 19900905731 EP19900905731 EP 19900905731 EP 90905731 A EP90905731 A EP 90905731A EP 0465549 A1 EP0465549 A1 EP 0465549A1
Authority
EP
European Patent Office
Prior art keywords
backrest
stand
supporting member
arm
respect
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Withdrawn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
EP19900905731
Other languages
German (de)
English (en)
Inventor
Kenneth Leim
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.)
Nc Nielsen Holding AS
Original Assignee
Nc Nielsen Holding AS
Molnlycke Vafveri AB
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 Nc Nielsen Holding AS, Molnlycke Vafveri AB filed Critical Nc Nielsen Holding AS
Publication of EP0465549A1 publication Critical patent/EP0465549A1/fr
Withdrawn legal-status Critical Current

Links

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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/015—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame divided into different adjustable sections, e.g. for Gatch position

Definitions

  • the present invention relates to a bed and/or chair arrangement comprising a stand and an assembly forming support surfaces, which is divided into at least two members movable with respect to each other, viz a backrest and an at least seat supporting member, said backrest being pivotally arranged about a substantially horizontal pivot axis with respect to the stand, a power means being arranged to generate a pivoting movement of the backrest about said pivot axis between different inclination positions with respect to the stand.
  • a shirt on the person will be pulled upwardly along the back of the person on pivoting the backrest downwardly.
  • a mattress lying on the assembly forming support surfaces will be pressed together and form bumps and irregularities on a pivo ⁇ ting of the backrest upwardly.
  • the present invention aims to remedy these inconveniences by an appropriate construction of an arrangement of the type de ⁇ scribed in the introduction.
  • Fig 1 is a simplified side view of a first embodiment of a bed according to the invention
  • Fig 2 shows a portion of the bed according to Fig 1, which is longitudinally sectioned and enlarged.
  • Fig 3 is a perspective view obliquely from behind/below, which shows a part of the transmission device, parts of the bed being broken away,
  • Fig 4 is a side view similar to Fig 2 but with the backrest in a different inclination position, namely horizontal,
  • Fig 5 shows a longitudinally sectioned view of a bed according to the invention equipped with a power means
  • Fig 6 shows a longitudinally sectioned view of an intermediate portion of a bed according to the invention equipped with three power means
  • Fig 7 is a perspective view of an attachment member according to the invention for a moveable connection of the power means to the thigh supporting or calf supporting member of a bed according to the invention.
  • FIG. 1 A preferred embodiment of the arrangement according to the invention is shown in a side view in Fig 1 in the form of a bed for in particular disabled persons.
  • the bed comprises a stand 1, which in its turn comprises legs 3 bearing on the ground by means of wheels 2 and a frame work 4 for supporting the other parts of the bed, such as the assembly forming support surfaces, power means and so on.
  • the frame work 4 has a central box girder 5 extending in the longitudinal direction of the bed and a frame part 6 with outer dimensions substantially corresponding to the lying surface of the bed.
  • the assembly forming support surfaces comprises a backrest 7 pivotally arranged about a substantially horizontal axis with respect to the stand, a seat supporting member 8 fixed with respect to the stand, a thigh supporting member 9 pivotally arranged with respect to the stand and a calf supporting member 10 pivotally arranged at the free end of the member 9.
  • the members 8, 9 and 10 are pivotally interconnected by hinges 11 and 12, respectively, whereas the backrest 7 is arranged freely movable with respect to the seat supporting member 8.
  • the members 7-10 being parts of the assembly forming support surfaces form a frame for receiving transverse laths not shown, which are interconnected by elastic rubber bands. These laths are intended to support a mattress.
  • the only connection existing between the backrest 7 and the seat suppor ⁇ ting member 8 is the elastic rubber bands existing between adjacent laths in this region of the assembly forming support surfaces.
  • the width of the assembly forming support surfaces is smaller than the one of the frame part 6, and therefore the end of the calf supporting member has been provided with a broader piece 13, which has rollers 14 for bearing upon the frame part 6 and thereby displaceably bearing the member 10 upon the latter.
  • a portion of the foot end of the bed has been cut away in Fig 1 for space reasons.
  • a power means 15 of the type varying its length is at one of its ends pivotally connected to an attachment 16 fixed to the stand and at its other end pivotally connected to a second end 17 of a rigid first arm 18.
  • the power means 15 comprises in this case an electric motor which is arranged to rotate the piston rod of a screw cylinder 20.
  • a projection in the form of a rigid axle 22 extending substantially horizon ⁇ tally in the direction transverse to the bed is secured to the first end 21 of the first arm.
  • the rigid axle 22 extends on both sides of the arm 18 and is at both ends rotatably received in square blocks 23, which each are displaceably received in a track 24 in opposed vertical walls 25 of the box girder 5.
  • the box girder 5 has a mirror symmetry with respect to a longitu ⁇ dinal vertical plane passing through its centre, so that the two vertical walls 25 look identical (see especially Fig 3).
  • the rigid axle 22 is by means of bars 26 rigidly connected to cross beams 27, 28 of the backrest 7. This means that pivoting of the first arm 18 and thus the rigid axle 22 about the pivot axis passing through the centre of the blocks gives rise to a pivoting of the backrest between different inclination posi ⁇ tions. Such a pivoting can be achieved by shortening and prolongation of the screw cylinder 20, respectively.
  • a second rigid arm 29 is by a first end 30 rigidly connected to the first end 21 of the first arm, so that their common origin defines said pivot axis 31.
  • a projection 33 extending substantially in parallel with the axle 22 is secured to the second end 32 of the second arm.
  • the projection 33 extends on both sides of the second arm, and its extremities are in the position of the backrest shown in Fig 3 through rotatable rollers 33' received in tracks 34 in the vertical walls 25 of the box girder.
  • the tracks 34 have in the front an opening 35 downwards and at the back an opening 36 upwards, which are so wide that the ends of the projection 33 may pass therethrough.
  • the lower wall of the track 34 forms a shelf for the end in question of the projection 33, which at the opening 35 is continued forwardly by an arcuated shape 37. It has been found that a length of the shelf of about 70 mm is preferable, and this length will correspond to the maximum displacement of the pivot axis 31 with respect to the seat supporting member 8.
  • third arms 38 are at one of their ends secured to the rigid axle 22. At their other end the third arms have small projections 39, which are arranged to co-operate with arcuated guiding walls 40 on the vertical wall 25 in question.
  • the power means 15 will produce the following motion pattern of the backrest 7: when the screw cylinder 20 in the horizontal position of the backrest (Fig 4) starts to contract itself a pivoting of the first arm 18, and by that of the backrest 7 rigidly connected thereto, about the pivot axis 31 formed by the axle 22 is obtained.
  • the extremities of the projection 33 move along the arcuated guiding walls 37 and hold the pivot axis 31 in a fixed position.
  • an unintentional pivoting of the backrest forwards further than to this position preferably correspon ⁇ ding to the vertical position of the backrest, is also preven ⁇ ted.
  • Fig 5 illustrates how the power means 15 may influence the position of the thigh supporting member 9 and the calf suppor ⁇ ting member 10.
  • a rigid link 41 is at its one end pivotally connected to the first arm 18 and at its other end pivotally connected to one arm 42 of a double armed lever 43 pivotally connected to one of the vertical walls of the box girder and by that to the stand.
  • the second arm 44 of the double-armed lever pivotally receives a rigid piece 45, which in its turn, by means of a pivot pin, is pivotally connected to an attachment in the form of an ear 46 provided with a groove, secured to the thigh supporting member.
  • the rigid link, the double-armed lever and the rigid piece as well as the attachment 46 are preferably two in number and arranged in a mirror symmetry relationship with respect to the central plane of the bed, so that the thigh supporting member is supported by a rigid piece on each verti ⁇ cal wall of the box girder.
  • Fig 6 an embodiment variant with three power means is shown, the first of which not shown is designed and arranged in the same way as the power means 15 shown in for example Fig 2. It is possible to rapidly change from one of these embodiments to the other. This is achieved in the following way: starting from the embodiment shown in Fig 5 the rigid links 41 are removed, which are preferably secured by locking pins to the lever 43 and the first arm 18, respectively. Then the rigid piece 45 is pushed out of its engagement with the attachment 46. When this is done a first attachment member 47 is arranged on the under ⁇ side of the thigh supporting member and a second attachment member 48 is arranged on the underside of the calf supporting member.
  • the two attachment members are designed in a similar way, and the second attachment member 48 is shown in Fig 7 in order to explain the fastening of the attachment members on the members 9 and 10.
  • the attachment members has a plate 49, which at one end is terminated by a U-shaped piece 50.
  • a flange 51 is protruding in right angle from the plate. This flange has a bore 52 for the passage of a locking pin.
  • the attachment member has a pin 53.
  • the attachment members are applied to the members 9 and 10, respectively, by pushing the U-shaped piece 50 onto a cross beam 54 of the member in ques ⁇ tion and pressing the pin 53 into locking engagement with an ear 46, 55, which is arranged on a cross beam 56 of the same member located closer to the foot end of the bed.
  • a quick locking of the attachment members 47 and 48 to the members 9 and 10 is obtained.
  • the engagement of the pin 53 in the ear in question may if desired be supplemented by another locking pin or a similar means.
  • a second power means 57 is by means of locking pins pivotally connected through its one end to an attachment 58 secured to the stand and its other end pivotally arranged on the flange 59 protruding downwardly of the first attachment member 47.
  • a third power means 60 is pivotally connected by its one end to the flange 59 and its other end to the flange 51.
  • the second and third power means are of the type varying its length and comprise preferably, like the first power means, an electric motor and a screw cylinder driven thereby.
  • the piece 13 is now also removed from the foot end of the calf supporting member, so that the member 10 may freely pass downwardly between the lateral frame pieces of the frame part 6.
  • the first power means 15 will still cause the motion pattern defined above of the backrest when this is pivoted upwardly and downwardly.
  • the pivoting of the thigh supporting member 9 about t hinge 11 is now controlled by actuating the second power means 57, while the pivoting of the calf supporting member 10 about the hinge 12 is effected by the third power means 60.
  • the angle between the members 9 and 10 will remain constant, in spite of the member 9 pivoting around the hinge 11.
  • the third power means 60 then functions as a rigid link between the members 9 and 10.
  • the invention is of course not restricted to the preferred embodiments thereof described above, but several possibilities to modify them will be apparent to a man with skill in the art without departing from the basic idea of the invention.
  • the stand of the arrangement could be designed in many different ways.
  • the power means could be driven in other ways, for example be constituted of hydraulic pumps effecting hydraulic cylinders, but other types of power means, such as pneumatic ones, would also be possible.
  • bars 26 connecting the rigid axle 22 with the backrest could be replaced by some kind of supporting member, which is secured to the axle 22 and on which the backrest rests only by means of the force of gravity.
  • the different guiding means and attachment members being parts of the piece of furniture according to the invention may of course be replaced by analogous ones, like a projection running in a track being provided with a track and the track is replaced by a projection in the form of a rib and so on.
  • the members 8, 9 and 10 of the assembly forming support surfaces consist of one single member fixed to the stand with respect to which the backrest is displaceable.
  • the power means in the embodiment in Fig 5 to be arranged to act on another member in the transmission device than the first arm, for example on the double-armed lever, through which the long rigid link 41 then will transfer forces from the double-armed lever to the first arm instead of the reverse.

Landscapes

  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chairs Characterized By Structure (AREA)

Abstract

Aménagement de lit et/ou de chaise qui comprend une base (1) et un ensemble qui forme des surfaces de support, divisé en au moins deux organes, chacun mobile par rapport à l'autre, c'est-à-dire un dossier (7) et au moins un organe de support du siège (8), ledit dossier étant monté par un axe de pivotement (31) sensiblement horizontal par rapport à la base, un moyen d'entraînement (15) étant adapté à la génération d'un mouvement de pivotement dudit dossier (7) par ledit axe de pivotement entre des positions d'inclinaison différentes par rapport à la base. L'axe de pivotement (31) du dossier et l'extrémité de l'organe de support du siège au moins le plus proche peuvent être déplacés réciproquement dans le sens longitudinal de l'aménagement. Un dispositif de transmission est aménagé de manière à faire agir l'organe d'entraînement (15) entre le dossier (7) et l'organe de support du siège pour produire le déplacement mutuel, de sorte que l'axe de pivotement et l'extrémité sont espacés plus loin l'un de l'autre lorsque le dossier est pivoté vers le haut depuis une position sensiblement horizontale à une position plus élevée, et sont plus proches lors du pivotement dans le sens opposé.
EP19900905731 1989-03-30 1990-03-12 Lit Withdrawn EP0465549A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8901122 1989-03-30
SE8901122A SE465250B (sv) 1989-03-30 1989-03-30 Ligg- och/eller sittmoebel

Publications (1)

Publication Number Publication Date
EP0465549A1 true EP0465549A1 (fr) 1992-01-15

Family

ID=20375505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900905731 Withdrawn EP0465549A1 (fr) 1989-03-30 1990-03-12 Lit

Country Status (4)

Country Link
EP (1) EP0465549A1 (fr)
FI (1) FI914593A0 (fr)
SE (1) SE465250B (fr)
WO (1) WO1990011748A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505312A1 (fr) * 1991-03-22 1992-09-23 N.C. Nielsen Holding A/S Lit
WO1996029970A1 (fr) * 1995-03-27 1996-10-03 Scandinavian Mobility Ec-Høng A/S Lit
ES2156571B1 (es) * 1999-10-07 2002-05-16 Flex Equipos De Descanso Sa Mecanismo de pivotamiento de los planos de un somier abatible.
KR100659910B1 (ko) * 2004-08-25 2006-12-26 남궁민우 운동수단을 갖는 의료용 침대
EP3009051B1 (fr) * 2014-10-16 2018-11-07 De Werth Group AG Dispositif d'appui réglable à moteur électrique
CN104546341A (zh) * 2015-01-07 2015-04-29 黄怀 一种升降起立床

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH625689A5 (fr) * 1979-08-11 1981-10-15 Valhaus Trust Reg
US4376316A (en) * 1980-12-31 1983-03-15 Joerns Furniture Company Hinge for adjustable beds and the like
DE3309580A1 (de) * 1983-03-17 1984-09-20 Hans Peter 2359 Kisdorf Baranowski Krankenbett

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9011748A1 *

Also Published As

Publication number Publication date
SE8901122D0 (sv) 1989-03-30
SE465250B (sv) 1991-08-19
FI914593A0 (fi) 1991-09-30
WO1990011748A1 (fr) 1990-10-18
SE8901122L (sv) 1990-10-01

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19910926

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE DK ES FR GB

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: N.C. NIELSEN HOLDING A/S

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19931001