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US3289222A - Device for an adjustable bed or chair - Google Patents

Device for an adjustable bed or chair Download PDF

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Publication number
US3289222A
US3289222A US382026A US38202664A US3289222A US 3289222 A US3289222 A US 3289222A US 382026 A US382026 A US 382026A US 38202664 A US38202664 A US 38202664A US 3289222 A US3289222 A US 3289222A
Authority
US
United States
Prior art keywords
bearing surface
frame
chair
bed
support member
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.)
Expired - Lifetime
Application number
US382026A
Other languages
English (en)
Inventor
Nielsen Georg Peter Christian
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.)
FIRM ALLAN CHRISTENSEN AND CO
Original Assignee
FIRM ALLAN CHRISTENSEN AND CO
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 FIRM ALLAN CHRISTENSEN AND CO filed Critical FIRM ALLAN CHRISTENSEN AND CO
Application granted granted Critical
Publication of US3289222A publication Critical patent/US3289222A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head-, foot- or like rests for beds, sofas or the like
    • A47C20/04—Head-, foot- or like rests for beds, sofas or the like with adjustable inclination
    • A47C20/043—Head-, foot- or like rests for beds, sofas or the like with adjustable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
    • 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
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/46—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • 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 invention relates to a device for an adjustable bed or chair with bearing surfaces, the mutual angular position of which can be changed arbitrarily, one of the bearing surfaces being provided with a loin rest to support the spine of the user atthe lion vertebrae.
  • the last-mentioned supporting plate which is placed directly under the users back, can certainly serve to straighten the patients spine when he is lying fully stretched on his back, but it is not suitable for incorporation for instance into a chair an angularly adjustable rest for the back, or into a bed with bearing surfaces, which can be angularly adjusted in relation to one another.
  • An object of the invention is to provide such a device for an adjustable bed or chair of the kind mentioned in which the loin-rest in any position of the bearing surface supporting the users back will correctly support the spine in the place where it is most of all required, i.e. at the loin vertebrae,
  • a loin-rest composed of a transverse supporting element located under the mattress or cushion of the bed or the chair, said supporting element being coupled by means of linked connections between the frame of the articulated bearing surface and the fixed framework of the bed or chair such that it will be displaced in an upwards direction on the bearing surface gradually as the inclined position thereof is increased. It has been established that such a loin-rest in all angular positions of the bearing surface for the users back, affords a correct and comfortable support for the loins so that the supporting element practically cannot be felt, no matter whether the user of the bed or chair is resting directly on his back or more or less on one of his sides.
  • a preferred embodiment for the device according to the invention is characterized by an arm facing downwards which is rigidly fixed at either side of the frame for the, upwards swivelling bearing surface and carrying a piv- "ice otally mounted joint, the fulcrum ofwhich on the arm is adjustable, the said joint being at its opposite end rotatably connected to a swivel link of variable effective length which at one end is rotatable around an adjustable point at the fixed frame of the bed or chair, and which at its upposite end is pivotally connected with a movable slide carrying the supporting element.
  • the adjustable 'fulcra enable the distance of the loin-rest from the axis of rotation between the seat bearing surface and the back bearing surface to be positioned individually according to the needs of the user, and once the adjustment has been made, the supporting element will support the lumbar region correctly in any angular position of the back of the chair or the corresponding bearing surface of the bed. It has been proved that the supporting element, in order to operate satisfactorily, mustbe displaced to an increasing extent for a given angular movement when the'back bearing surface is turned upwards from the horizontal position into an inclined position, after which the proportion between displacement and angular movement must decrease again when the position of the back bearing surface becomes still steeper. This can be obtained by adequate adjustment of the fulcra of the link connection.
  • the link mechanism for displacement of the slide can be carried out in several different ways, for instance, according to the invention, an arm facing downwards on either side of the frame for the upwards swivelling bearing surface may be link-connected with a. movable slide for the supporting element through a toggle joint connection, the break point of which is guided in a curved guideway on the fixed framework of the bed or chair.
  • the slide may for instance be a tube enclosing the frame of the bearing surface.
  • the support may function as intended and afford a comfortable rest, even if the user is more or less hollow-backed, it is appropriate according to the invention that the supporting element is constituted by a pivotally mounted shaft on the slide with eccentrics for alteration of the shape of the loin-rest.
  • the supporting. element may be arranged on top of the bearing surface immediately under the mattress or cushion, but in order that the dished areas of the resting surface may come to be curved as uniformly as possible in the. longitudinal as well as the transverse direction it is appropriate according to the invention that the supporting element is placed under lamellae fitted. on the bearing surface, said lamellae being arranged in the longitudinal direction of the bed or chair and extending in a manner, in itself known, between corresponding lamellae in a neighboring bearing surface.
  • the resistance of the lamellae to displacement of the supporting element is les-sthan it would be if the lamellae were attached to the end of the frame facing the axis of rotation.
  • FIGURE 1 shows in side view a part of a bed incorporating the device according to the invention
  • FIGURE 2 is a top view of the same.
  • the bed shown has a fixed framework 1, on which is arranged a bearing surface with a frame 2 to support the patients seat.
  • a frame 3 is pivotally supported in relation to the aforesaid bearing surface by means of hinges 16 to constitute a bearing surface for supporting the patients back and head.
  • the frame 3 is swung upwards by hand and is supported. in a known manner by clamps 4, which are engageable in respective toothed rods R.
  • clamps 4 which are engageable in respective toothed rods R.
  • the frame 3 can also be suitably swung upwards by means of hydraulic or electric driving mechanisms.
  • Longitudinal lamellae 5 are attached to a transverse bar 6 in the frame 3 and extend into spaces between corresponding lamellae 7 in the frame 2.
  • Lamellae are supported by eccentrics 8 on a transverse shaft 9 forming a loin-rest whereas lamellae 5' rest directly on shaft 9.
  • three eccentrics 8 are shown, the central one of which is lower than the two outer ones, so that a mattress placed upon the bed will assume a slight curvature in the transverse direction. Possibly the central eccentric may be left out altogether.
  • the shaft 9 is rotatable in bearings in a slide 10 on either side of the frame and to adjust the position of the eccentrics and thereby of the lamellae 5.
  • the shaft 9 can be clamped in adjusted position by tightening means such as nuts 17.
  • the slide 10 is connected by a pivot 18 with a telescopic link 11 having at its opposite end a fulcrum 12, which can be displaced in the vertical direction and engaged in holes in an arm 13 arranged downwards from the frame 1.
  • the telescopic link is composed of a conventional piston-cylinder arrangement in which piston 11A is slidable in cylinder 11B.
  • a telescopic link there may be used a rigid joint with a longitudinal slit sliding over a bolt in the fulcrum 12.
  • the telescopic link 11 is at a distance from its upper end pivotally connected at 19 with a further link 14, the opposite end of which is pivotally connected. at 20 with a downward arm welded at either side of the frame 3.
  • the pivot between the link 14 and the arm 15 is adjustable along the last-mentioned arm, which may for instance be provided with a number of holes as shown.
  • the distance between the axis of rotation between the frames 2 and 3 and the shaft 9 forming the loin-rest may be varied and adapted individually to the patient, and moreover, the extent of the displacement of the loin-rest which is produced by a given angular movement can be altered hereby.
  • the change in the angular position of the frame 3 will be associated with a displacement of slide 10 and a consequent displacement of the shaft 9 whereby the position of the loin-rest afforded by said shaft 9 will also be modified. It is this displacement of the loin-rest by the link mechanism comprised. of links 11, 14 and 15 which enables the bed to furnish the desired support for the spine of the user for all angular positions of frame 3.
  • the device according to the invention also can be used in connection with chairs, the back of which must be adjustable from a seating position backwards into a resting position-such as for instance is the case with the seats in aircraft and long-trip buses.
  • An article of furniture comprising a back frame and a seat frame said frames being secured together for pivotal movement, a support member slidably supported on the back frame, means secured on said back frame and defining a bearing surface which is supported on the support member, and linkage means connected to said frames and to the support member to displace the support member on said back frame relative to the bearing surface in correspondence with the degree of pivotal movement of the frames.
  • An "article of furniture as claimed in claim 1 comprising means on said support member for adjusting the curvature of the bearing surface for any relative angular position of the frames.
  • said linkage means includes interconnected links respectively connected to the support member and to the frames to displace the support member on said back frame as said frames are relatively rotated and vary the position of the eccentrics relative to the bearing surface.
  • An article of furniture as claimed in claim 6 comprising means on said frames for adjustably supporting the first and third links for pivotable movement.
  • said means defining the bearing surface comprises a plurality of longitudinal lamellae secured to said back frame and resting on the eccentrics which control the curvature of said lamellae.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)
US382026A 1963-11-04 1964-07-13 Device for an adjustable bed or chair Expired - Lifetime US3289222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK516263AA DK104477C (da) 1963-11-04 1963-11-04 Indstillelig seng eller stol.

Publications (1)

Publication Number Publication Date
US3289222A true US3289222A (en) 1966-12-06

Family

ID=8140011

Family Applications (1)

Application Number Title Priority Date Filing Date
US382026A Expired - Lifetime US3289222A (en) 1963-11-04 1964-07-13 Device for an adjustable bed or chair

Country Status (5)

Country Link
US (1) US3289222A (da)
DK (1) DK104477C (da)
GB (1) GB1030933A (da)
NO (1) NO118870B (da)
SE (1) SE301037B (da)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480323A (en) * 1968-02-06 1969-11-25 Louis Propus Resilient ventilated back and seat support
US3484878A (en) * 1966-10-14 1969-12-23 Litollo As Adjustable bed or chair
US3646896A (en) * 1969-07-16 1972-03-07 Ruth Derujinsky Sunbather{3 s rotatable platform
US3724144A (en) * 1969-12-12 1973-04-03 W Schuster Reinforcing structure for bodies with curved load-supporting surfaces
EP0153390A1 (en) * 1983-08-15 1985-09-04 Robin Morgenstern BACKREST WITH ADJUSTABLE PROFILE FOR THE LUMBAR AND SACRAL SPIRIT AREA.
US5029349A (en) * 1990-05-18 1991-07-09 Valerie Hamilton Pregnancy supporting chair assembly
US5678264A (en) * 1993-04-08 1997-10-21 Comfort & Care Limited Recliner
US6015189A (en) * 1991-11-05 2000-01-18 Genus Medical Inc. Adjustable chair
US20060083355A1 (en) * 2004-10-15 2006-04-20 Siemens Aktiengesellschaft Device for support of the head
US20060255646A1 (en) * 2005-04-08 2006-11-16 Banyan Licensing Lc Portable support cushion
US20070214571A1 (en) * 2003-09-26 2007-09-20 Piraino Mario C Adjustable Support Means for a Bed
US20080052829A1 (en) * 2006-09-06 2008-03-06 Bram De Vries Reclining table with an adjustable back rest
CN110507111A (zh) * 2019-08-29 2019-11-29 杭州煜伟科技有限公司 一种用于脊柱弯曲人群的矫正脊柱的昂首斜面护脊床垫
US10959532B2 (en) * 2016-12-30 2021-03-30 Zhejiang Sidoo Electrical Appliances Co., Ltd. Back adjustable electrical bed frame
USD1050786S1 (en) * 2021-06-08 2024-11-12 Keeson Technology Corporation Limited Bed frame

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3713117A1 (de) * 1987-04-16 1988-11-03 Rudolf Thomas Schneider Verwandelbares sitz- liegemoebel zum gebrauch im haus und im freien
GB2287401A (en) * 1994-03-12 1995-09-20 Mangar International Ltd Lifting device for beds

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152734A (en) * 1938-07-22 1939-04-04 Harry H Leiter Hyperextension frame
US2863495A (en) * 1955-03-01 1958-12-09 La Z Boy Chair Co Reclining chair with adjustable back
US2942651A (en) * 1957-11-12 1960-06-28 Market Forge Company Auxiliary seat

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152734A (en) * 1938-07-22 1939-04-04 Harry H Leiter Hyperextension frame
US2863495A (en) * 1955-03-01 1958-12-09 La Z Boy Chair Co Reclining chair with adjustable back
US2942651A (en) * 1957-11-12 1960-06-28 Market Forge Company Auxiliary seat

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3484878A (en) * 1966-10-14 1969-12-23 Litollo As Adjustable bed or chair
US3480323A (en) * 1968-02-06 1969-11-25 Louis Propus Resilient ventilated back and seat support
US3646896A (en) * 1969-07-16 1972-03-07 Ruth Derujinsky Sunbather{3 s rotatable platform
US3724144A (en) * 1969-12-12 1973-04-03 W Schuster Reinforcing structure for bodies with curved load-supporting surfaces
EP0153390A1 (en) * 1983-08-15 1985-09-04 Robin Morgenstern BACKREST WITH ADJUSTABLE PROFILE FOR THE LUMBAR AND SACRAL SPIRIT AREA.
EP0153390A4 (en) * 1983-08-15 1986-01-28 Robin Morgenstern BACKREST WITH ADJUSTABLE PROFILE FOR THE LUMBAR AND SACRAL SPIRIT AREA.
US5029349A (en) * 1990-05-18 1991-07-09 Valerie Hamilton Pregnancy supporting chair assembly
US6015189A (en) * 1991-11-05 2000-01-18 Genus Medical Inc. Adjustable chair
US5678264A (en) * 1993-04-08 1997-10-21 Comfort & Care Limited Recliner
US7540048B2 (en) * 2003-09-26 2009-06-02 Mario Cladinoro Piraino Adjustable support means for a bed
US20070214571A1 (en) * 2003-09-26 2007-09-20 Piraino Mario C Adjustable Support Means for a Bed
US7472444B2 (en) * 2004-10-15 2009-01-06 Siemens Aktiengesellschaft Device for support of the head
US20060083355A1 (en) * 2004-10-15 2006-04-20 Siemens Aktiengesellschaft Device for support of the head
US20060255646A1 (en) * 2005-04-08 2006-11-16 Banyan Licensing Lc Portable support cushion
US20080052829A1 (en) * 2006-09-06 2008-03-06 Bram De Vries Reclining table with an adjustable back rest
US7478445B2 (en) * 2006-09-06 2009-01-20 Sinmed Holding International B.V. Reclining table with an adjustable back rest
US10959532B2 (en) * 2016-12-30 2021-03-30 Zhejiang Sidoo Electrical Appliances Co., Ltd. Back adjustable electrical bed frame
CN110507111A (zh) * 2019-08-29 2019-11-29 杭州煜伟科技有限公司 一种用于脊柱弯曲人群的矫正脊柱的昂首斜面护脊床垫
USD1050786S1 (en) * 2021-06-08 2024-11-12 Keeson Technology Corporation Limited Bed frame
USD1050785S1 (en) * 2021-06-08 2024-11-12 Keeson Technology Corporation Limited Bed frame

Also Published As

Publication number Publication date
GB1030933A (en) 1966-05-25
SE301037B (da) 1968-05-20
NO118870B (da) 1970-02-23
DK104477C (da) 1966-05-23

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