US3305877A - Bed or chair with supporting surfaces having angular positions variable in relation to each other - Google Patents

Bed or chair with supporting surfaces having angular positions variable in relation to each other Download PDF

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Publication number
US3305877A
US3305877A US493771A US49377165A US3305877A US 3305877 A US3305877 A US 3305877A US 493771 A US493771 A US 493771A US 49377165 A US49377165 A US 49377165A US 3305877 A US3305877 A US 3305877A
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United States
Prior art keywords
frame
bed
seat
supporting surface
back supporting
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Expired - Lifetime
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US493771A
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English (en)
Inventor
Niclsen George 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.)
CHRISTENSEN ALLEN AND CO
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CHRISTENSEN ALLEN AND CO
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    • 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
    • A47C20/08—Head -, foot -, or like rests for beds, sofas or the like with means for adjusting two or more rests simultaneously
    • 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 bed or chair with supporting surfaces having angular positions variable arbitrarily in relation to each other, the supporting surfaces being supported by frames which are interconnected by links and which by means of at least one locking mechanism may be fixed in an adjusted position in relation to the bed prop-er.
  • An object of the invention is to provide a bed in which the inclining position of the back supporting surface in relation to a horizontal plane may readily be varied and fixed in any arbitrary position, preferably by a person lying in the bed, and in such manner that the adjustment requires no mechanical power or exertion of manual strength. It is a further object to make the bed in such manner that the user or patient has no tendency, as is otherwise the case, to slide down towards the foot of the bed when the back supporting surface has been turned up into a more or less inclining position.
  • a seat supporting surface is mounted substantially horizontally in a parallel guide consisting of at least one system of bars with two bars which are parallel with each other and pivotal about two fixed points of the bed structure located beneath a back supporting surface, each bar being furthermore pivotally connected with a downwardly extending arm that is rigidly connected with the seat supporting surface, the fixed center of rotation of the upper parallel bar being located on a pivotal axis for the frame of the back supporting surface; the said frame may in any angular position be locked to the bed structure by means of a locking mechanism, preferably operable from the bed.
  • the seat supporting surface When the locking mechanism is released by the person lying in the bed, the seat supporting surface will by the action of gravity move downwards, retaining its substantially horizontal position, and at the same time the frame of the back supporting surface which is linked to the seat supporting surface will swing upwards with the person in the bed raising the upper part of the body.
  • the locking mechanism is again operated so that the frame of the back supporting surface is locked in that position.
  • the seat supporting surface On moving downwards, the seat supporting surface carries with it the frame of the supporting surface for the thighbones so that this supporting surface is brought into an inclined position opposite to that of the back supporting surface.
  • the design is very suitable for use in connection with beds of the kind in which the supporting surfaces for back and thigh-bones are lamellae attached at one end to the supporting frame while at the other end they extend between corresponding lamellae that constitute the seat supporting surface.
  • An essential feature of one embodiment of the bed according to the invention having a bed structure with two longitudinal side members and a parallel guide at each side member is that the side members have a downwardly cranked or depressed section extending beneath the frame of the seat supporting surface and beneath parts of the frames for the back and thigh-bone supporting surfaces, the upper parallel bar of each guide being constituted by a bar beneath the side of the frame of the back supporting surface, which frame is pivotal about an axis through the side members directly beside the cranked sections.
  • the cranked section affords room for lowering of the seat supporting surface from lying to sitting position and the cranked section is well suited for attachment of supporting and "locking means.
  • the locking mechanism for fixing and releasing the back supporting surface should be as easily operable as possible. This is achieved in a bed with one or more locking mechanisms of the kind having a spindle that is axially displa'ceable by the action of a pressure member, the said spindle having transverse holes for fixing of transverse bars to outer supporting means.
  • the said bed has the essential feature that supporting bars pivotally mounted in the back supporting frame are passed through transverse holes provided in a pivotal tube mounted on the bed and that the pressure member at at least one end of the spindle is constitued by a longitudinally adjustable pressure screw mounted in a holder which may be swivelled by means of a handle.
  • the pressure screw When the said pressure screw is substantially coaxial with the spindle, the pressure screw may tread on a pressure rod that is freely displaceable in an axial bore of the spindle so as to wedge the nearest transverse supporting bar between the pressure rod and the hole edges of the tube attached to the bed structure, displacing the spindle in such manner that the remaining supporting bar or bars are locked between hole edges in the spindle and the pivotal tube, respectively.
  • the handle for operating the swingalble holder may without difficulty be passed rforward beside the bed and thus be operated by the person in the bed.
  • This enables, among other things, a nurse to fasten the back supporting surface in a definite inclined position by means of a locking member which cannot, or can only with difiioulty, be reached by a patient that is unable to operate the bed mechanism appropriately.
  • the swingable holder may in a preferred embodiment according to the invention be passed slightly beyond the position in which the holder is coaxial with the spindle to rest in contact with a stop which according to the invention is conveniently constituted by an adjustable screw projecting from the swingable holder and forming a stop for the holder in the said locked position.
  • FIGURE 1 shows an embodiment of the bed according to the invention, viewed from the side
  • FIGURE 2 is a top view of the same, certain parts being removed for the sake of clarity,
  • FIGURE 3 is a locking mechanism for fixing the position of the back supporting surface, viewed towards the head of the bed, on an enlarged scale, and
  • FIGURE 4 a part of the mechanism shown in FIG- URE 3, viewed from above.
  • the bed shown in FIGURES 1 and 2 has a base frame or structure including longitudinal side members 1 for supporting a number of supporting surfaces linked to each other, each having a closed supporting frame. Side members 1 are provided with depressed section D.
  • the said supporting frames are all hinged together along axes extending transversely of the bed, and a frame 2 of the seat supporting surface is at each side member carried by a parallel guide consisting of two bars 3 and 4 and a downwardly extending arm 5 in fixed connection with the frame 2 which is superposed above section D.
  • the seat supporting surface may perform a translatory movement upwards and downwards, the bars 3 and 4 turning about pivot points 6 and 7 on either side member.
  • the upper bar 3 of the parallel guide forms the side in the frame 8 of the back supporting surface so that the said frame pivots about the transverse axis through the points 6 and thus, in its unlocked position, will swing upwards about the said axis when the person lying in the bed raises the upper part of his body and thus by his weight forces the seat supporting surface downwards.
  • Frame 8 is partially superposed above and can tilt into section D.
  • the frame 10 of the thigh bone supporting surface is also turned, whereby this surface 'is brought into an upwardly inclining position preventing the user of the bed from sliding forward.
  • the bed illustrated is of the kind in which the back and thigh-bone supporting surfaces are constituted by lamellae 9 which are attached at one end to the frames 3 and 10, respectively, their other end being passed into spaces between lamellae 9' which are attached to the frame 2 and constitute a seat supporting surface.
  • the seat supporting surface may. be fixed in the desired level by means of a locking mechanism 11 for locking upwardly extending suppoting bars 11' attached to the frame. ing locking mechanisms 11 with supporting bars 11 are provided at the other frames of the bed.
  • the effective length of the seat supporting surface may be adjusted by transverse bars 12 which support the lamellae 9 being displaced in racks (not shown) provided beneath the frame 2.
  • a locking mechanism of the kind shown in FIGURES 3 and 4.
  • a bow 14 At the side member on one side of the bed is attached a bow 14 in which a longitudinally adjustable pressure screw or thrust device 13 is pivotally mounted by means of a swingable holder 13'.
  • the pressure screw 13 When the pressure screw 13 is at right angles to the longitudinal direction of the bed, it is in alignment with an axially displaceable spindle 15 mounted in a pivotal tube on the bed.
  • FIGURES 1 and 2 For the sake of clarity the locking mechanism is not shown in detail in FIGURES 1 and 2, but from FIGURE 1 it will be appreciated how a handle 22 for turning the pressure screw 13 may be passed forward beside the bed.
  • the swingable holder 13 carries a projecting adjustable screw 21 constituting a stop for the holder in the locked Correspondposition, in which the pressure screw 13 is turned slightly beyond the position in which it is coaxial with the spindle 15, so that the locking mechanism is not liable to release itself, the abutting ends of the pressure screw 13 and the pressure rod 17 being formed as hard ball surfaces.
  • a female thread for a pressure screw that may tread on the transverse bar 18 so that the back supporting surface may also be fastened from this side of the bed.
  • the locking mechanisms 11 for the other supporting frames may be designed in corresponding manner.
  • An article, of furniture comprising a base frame means, a back supporting frame superposed relative to said base frame means, pivot means connecting the back supporting frame at an intermediate position of its length to the base frame means, a horizontal seat frame superposed over said frame means, link means supported from said base frame means and coupling said seat and back supporting frames so that, as the back supporting frame pivots on said base frame means, said seat frame is raised and lowered relative to said base frame while maintaining its horizontal attitude, a downwardly extending arm rigidly on said seat frame, said link means including a link extending parallel to said back supporting frame and having one end pivotally coupled to said arm at a location in vertical alignment with the pivot connection between the seat frame and the back supporting frame, and an opposite end pivotally connected with said base frame means at a location in vertical alignment below said pivot means, to constitute a parallelogram for raising and lowering the seat frame While maintaining the horizontal attitude thereof, and locking means to lock said frames in fixed position relative to said base frame means.
  • An article of furniture as claimed in claim 1 comprising a thigh-support frame coupled to said seat frame and tiltably supported on said base frame means whereby to follow movements of the seat frame and to change inclination relative to said base frame means.
  • said locking means comprises a hollow spindle on said base frame means, a bar pivoted to said back supporting frame and extending diametrally through said spindle, an axially displaceable rod in the spindle to thrust axially against the bar to lock the same in position, and pivotal thrust means pivotal on an axis perpendicular to said rod to engage andexert an axial force on the latter.
  • rod and pivotal thrust means include engaging portions which have relative dead center positions of maximum engagement, comprising stop means for stopping the pivotal thrust means after the latter moves past the dead center position whereby to lock the pivotal thrust means in position.

Landscapes

  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Special Chairs (AREA)
US493771A 1964-10-16 1965-10-07 Bed or chair with supporting surfaces having angular positions variable in relation to each other Expired - Lifetime US3305877A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK513364AA DK107377C (da) 1964-10-16 1964-10-16 Seng eller stol med bæreflader, hvis indbyrdes vinkelstilling kan ændres.
FR81383A FR1497759A (fr) 1964-10-16 1966-10-24 Lit ou siège pourvu de surfaces de support présentant des positions angulaires variables l'une par rapport à l'autre

Publications (1)

Publication Number Publication Date
US3305877A true US3305877A (en) 1967-02-28

Family

ID=42634792

Family Applications (1)

Application Number Title Priority Date Filing Date
US493771A Expired - Lifetime US3305877A (en) 1964-10-16 1965-10-07 Bed or chair with supporting surfaces having angular positions variable in relation to each other

Country Status (9)

Country Link
US (1) US3305877A (da)
BE (1) BE670947A (da)
CH (1) CH428122A (da)
DE (1) DE1529469A1 (da)
DK (1) DK107377C (da)
FR (1) FR1497759A (da)
GB (1) GB1061350A (da)
NL (1) NL6513364A (da)
SE (1) SE308181B (da)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4996731A (en) * 1989-04-19 1991-03-05 Kruyt Robert A Adjustable bed
WO1996008983A1 (en) * 1994-09-23 1996-03-28 Oestergaard Steen A piece of furniture having an adjustable seat
US6050642A (en) * 1996-05-13 2000-04-18 Erb; Scott C. Multi-direction reclining and stretching chair
US6694549B2 (en) * 2001-04-20 2004-02-24 Hill-Rom Services, Inc. Bed frame with reduced-shear pivot
US20070180621A1 (en) * 2006-01-19 2007-08-09 Hill-Rom Services, Inc. Patient support apparatus having auto contour
EP1913919A1 (en) 2006-10-16 2008-04-23 Jensen Mobler as Adjustable bed bottom, bed and adjustable headboard
US20240023720A1 (en) * 2022-07-21 2024-01-25 Chuan-Hang Shih Electric bed

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL85442A (en) * 1988-02-17 1992-11-15 Oded Sheinfeld Combined bed and relaxation chair
DE9301415U1 (de) * 1993-02-02 1993-03-11 Stanzwerk Wetter Sichelschmidt & Co, 5802 Wetter Sitz-Liegemöbel in Form einer Ottomane oder Recamière

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3003160A (en) * 1958-12-01 1961-10-10 Goodman Robert Foldable bed frame-bed to contour chair
US3127783A (en) * 1961-06-08 1964-04-07 Anderson Co Adjustable holding mechanism
US3175229A (en) * 1962-09-27 1965-03-30 Merex Furniture Company Ltd Hospital bed
US3184765A (en) * 1961-04-07 1965-05-25 Super Sagless Spring Corp Beds
US3211495A (en) * 1962-03-26 1965-10-12 Nielsen Georg Peter Christian Bed or chair with supporting surfaces having angular positions variable in relation to each other

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3003160A (en) * 1958-12-01 1961-10-10 Goodman Robert Foldable bed frame-bed to contour chair
US3184765A (en) * 1961-04-07 1965-05-25 Super Sagless Spring Corp Beds
US3127783A (en) * 1961-06-08 1964-04-07 Anderson Co Adjustable holding mechanism
US3211495A (en) * 1962-03-26 1965-10-12 Nielsen Georg Peter Christian Bed or chair with supporting surfaces having angular positions variable in relation to each other
US3175229A (en) * 1962-09-27 1965-03-30 Merex Furniture Company Ltd Hospital bed

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4996731A (en) * 1989-04-19 1991-03-05 Kruyt Robert A Adjustable bed
WO1996008983A1 (en) * 1994-09-23 1996-03-28 Oestergaard Steen A piece of furniture having an adjustable seat
US6050642A (en) * 1996-05-13 2000-04-18 Erb; Scott C. Multi-direction reclining and stretching chair
US6694549B2 (en) * 2001-04-20 2004-02-24 Hill-Rom Services, Inc. Bed frame with reduced-shear pivot
US20040158923A1 (en) * 2001-04-20 2004-08-19 Hill-Rom Services, Inc. Patient support having a siderail
US20070180621A1 (en) * 2006-01-19 2007-08-09 Hill-Rom Services, Inc. Patient support apparatus having auto contour
US8069513B2 (en) 2006-01-19 2011-12-06 Hill-Rom Services, Inc. Patient support apparatus having auto contour
US8387184B2 (en) 2006-01-19 2013-03-05 Hill-Rom Services, Inc. Auto contour handle apparatus
US8910329B2 (en) 2006-01-19 2014-12-16 Hill-Rom Services, Inc. Patient support having auto contour
EP1913919A1 (en) 2006-10-16 2008-04-23 Jensen Mobler as Adjustable bed bottom, bed and adjustable headboard
US20240023720A1 (en) * 2022-07-21 2024-01-25 Chuan-Hang Shih Electric bed
US12114781B2 (en) * 2022-07-21 2024-10-15 Chuan-Hang Shih Electric bed

Also Published As

Publication number Publication date
FR1497759A (fr) 1967-10-13
BE670947A (da) 1966-01-31
CH428122A (de) 1967-01-15
GB1061350A (en) 1967-03-08
DE1529469A1 (de) 1969-12-18
NL6513364A (da) 1966-04-18
DK107377C (da) 1967-05-22
SE308181B (da) 1969-02-03

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