EP0568957A1 - Dispositif d'actionnement, notamment pour lits d'hôspitaux articulés - Google Patents

Dispositif d'actionnement, notamment pour lits d'hôspitaux articulés Download PDF

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Publication number
EP0568957A1
EP0568957A1 EP93107167A EP93107167A EP0568957A1 EP 0568957 A1 EP0568957 A1 EP 0568957A1 EP 93107167 A EP93107167 A EP 93107167A EP 93107167 A EP93107167 A EP 93107167A EP 0568957 A1 EP0568957 A1 EP 0568957A1
Authority
EP
European Patent Office
Prior art keywords
actuator assembly
casing
actuating units
bed
fact
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Withdrawn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
EP93107167A
Other languages
German (de)
English (en)
Inventor
Brunello Zapponi
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.)
VG SA
Original Assignee
VG SA
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 VG SA filed Critical VG SA
Publication of EP0568957A1 publication Critical patent/EP0568957A1/fr
Withdrawn legal-status Critical Current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
    • A47C20/041—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by electric motors

Definitions

  • the present invention relates to an actuator assembly, particularly for articulated hospital beds.
  • Hospital beds in particular are known to comprise a fixed frame, and a supporting surface normally divided into a fixed portion connected to the frame, and one or more movable portions, each located at a respective end of the supporting surface and designed to rotate, about a respective axis perpendicular to the longitudinal axis of the bed, into a tilted position in relation to the fixed portion of the supporting surface.
  • Each movable portion normally presents a number of brackets extending downwards from the end of the movable portion facing the fixed portion, and supporting a bar extending perpendicular to the longitudinal axis of the bed and connected in rotary manner to the bed frame.
  • the cross bar defines the rotation axis of the respective movable portion, and is normally fitted integral with a radial lever cooperating with an actuator assembly for rotating the movable portion about said axis of rotation.
  • the actuator assemblies currently employed on articulated beds of the aforementioned type are normally as described and illustrated in International Patent Application PCT/DE89/00290, which relates to an actuator assembly fittable to beds with two movable end sections, and comprising an elongated casing housing two opposed linear actuators.
  • Each actuator comprises a motor housed centrally inside the casing; and a piston connected to the motor and moving back and forth, along a longitudinal guide formed inside the casing, to and from a respective end portion of the casing.
  • the casing comprises a bottom cup-shaped body, and a top cover by which the two end portions of the casing are left exposed and accessible from outside.
  • the bottom body presents two openings extending downwards from the top edges of the respective lateral walls of the bottom body, and housing a respective cross bar of a respective movable section of the bed.
  • the casing also comprises two end covers for closing the end portions of the casing at the top.
  • the known actuator assembly described above is fitted to the bed by removing the end covers; positioning the casing underneath the bed, between the two cross bars of the two movable sections, and substantially parallel to the longitudinal axis of the bed; raising the casing so as to insert the operating levers of the two cross bars inside the end portions of the casing, connect the levers to the respective pistons, and engage each cross bar inside a respective pair of said openings; and replacing the two end covers so that the casing is suspended on the cross bars.
  • the casing is suspended on the cross bars by means of the end covers, which, especially when made of plastic material, are subject to breakage, thus resulting in detachment of the actuator assembly from the bed.
  • the above known actuator assembly allows of absolutely no variation in the distance between the two cross bars, which must fit accurately inside respective pairs of openings formed on the bottom body of the casing. In other words, therefore, a specific casing is required for each type of bed.
  • each movable section comprises a portion of the supporting surface of the bed; a cross bar connected to and defining the axis of rotation of said supporting surface portion; and externally-operated lever means for rotating said supporting surface portion about said axis of rotation;
  • the actuator assembly being connectable to said lever means, and being characterized by the fact that, for each said movable section, it comprises an independent actuating unit in turn comprising an elongated casing, a linear actuator housed inside the casing, and a piston moved axially by the linear actuator along a guide formed in the casing; the casing presenting a transverse front end recess; the piston, in use, engaging said respective lever means when the front recess is engaged by said respective fixed cross bar; and the front recess constituting the point at which the actuating unit is connected to the bed.
  • the actuator assembly described above comprises two said actuating units fittable to respective movable sections of the bed; and means for mutually connecting the two actuating units; the actuating units being identical and opposed to each other; said connecting means comprising hinge means for mutually connecting the two actuating units in rotary manner about at least one axis perpendicular to the longitudinal axis of the actuator assembly, and lock means for locking the two actuating units in a substantially mutually aligned position; and the front recesses of the two actuating units presenting, when the actuating units are aligned, a center distance substantially equal to that of said cross bars.
  • Said connecting means preferably comprise a central body interposed between the two actuating units and connected to each by a said hinge means and a said lock means; said central body preferably being selectable from a number of central bodies differing in size in a direction parallel to the longitudinal axis of the actuating units.
  • Number 1 in Fig.1 indicates an actuator assembly fitted in removable manner to the fixed frame 2 of a bed 3, the supporting surface 4 of which comprises a fixed central section 5, a top or head section 6, and a bottom or foot section 7.
  • Sections 6 and 7 present respective pairs of brackets 8 and 9 for connecting them to respective cross bars 10 and 11 located close to the opposite ends of central section 5 of supporting surface 4, and connected to frame 2 so as to rotate, in relation to frame 2, about respective axes 12 and 13.
  • each bar 10, 11 presents a substantially L-shaped lever 14 extending substantially radially outwards from respective bar 10, 11, and comprising a square end arm 15 cooperating with actuator assembly 1 for determining the angular position of respective bar 10, 11 about respective axis 12, 13 and in relation to frame 2.
  • actuator assembly 1 comprises two identical opposed actuating units 16 mutually connected in removable and mutually separable manner, connected in removable manner to frame 2, and located between bars 10 and 11 beneath central section 5 of bed 3.
  • each actuating unit 16 comprises an outer casing 17 substantially in the form of a rectangular parallelepipedon with its longitudinal axis perpendicular to bars 10 and 11, and having, close to one end, a lateral projection 18 extending substantially parallel to bars 10 and 11.
  • casing 17 comprises a bottom cup-shaped body 19 closed at the top by a cover 20 defined by a first cup-shaped portion 21 extending over the top half of projection 18, and by a second cup-shaped portion 22 extending over the portion of casing 17 adjacent to projection 18.
  • bottom body 19 presents a sunken end portion 23 projecting beyond the corresponding end of portion 22 of cover 20, and defines, together with portion 22, a transverse front frame 24 defined at the top by the top wall of portion 22 of cover 20, and laterally by the lateral walls of portion 22 and bottom body 19.
  • the lateral walls of frame 24 present two aligned recesses, which combine to define a front transverse recess 25 having a semicylindrical section and formed half on cover 20 and half on bottom body 19.
  • Recess 25 presents a substantially rectangular, circular-ended section, and is deeper than the radius of respective bar 10, 11, so as to house, in use, over half of the circumference of respective bar 11, 12, and act as the connecting point of casing 17 to bar 10, 11.
  • each bar 10, 11 engages a recess 26 defined by two aligned recesses formed in the lateral walls of a front frame 27 of a cup-shaped cover 28 movable, in relation to the bottom body, between a closed position (continuous line in Fig.4) wherein cover 28 is positioned over sunken portion 23 with front frame 27 contacting front frame 24, and an open position (dotted line in Fig.4) wherein cover 28 is turned down in front of the free end of portion 23 to enable access to recess 25 from the outside.
  • cover 28 presents two coaxial inner lateral pins 29 (only one shown), each mounted so as to rotate and slide transversely inside a respective guide slot 30 (only one shown) formed in a respective upper lateral longitudinal appendix 31 (only one shown) of sunken portion 23.
  • Portions 21 and 22 of cover 20 are connected to bottom body 19 of casing 17 by respective screws 32, 33, so as to define, with body 19, a substantially L-shaped chamber 34, a first portion 35 of which extends inside lateral projection 18, and, as shown more clearly in Fig.3, houses the reversible motor 36 of a linear actuator 37.
  • the intermediate portion of a second portion 38 of chamber 34 extending along the longer longitudinal axis of casing 17 and substantially perpendicular to respective bar 10, 11, houses a U-shaped guide 39 of a piston 40 constituting the output member of actuator 37 and having a substantially square section. Piston 40 is moved by motor 36 to and from sunken portion 23 of bottom body 19 in direction 41 perpendicular to respective bar 10, 11.
  • motor 36 is connected to a reduction gear 42 housed inside an initial portion of portion 38 of chamber 34 and having an output consisting of a screw 43, which engages an internally-threaded axial hole 44 in piston 40, and is connected to piston 40 by a screw-nut screw coupling.
  • said intermediate portion of chamber 34 houses an intermediate longitudinal transverse plate 45 connected by screws 46 to bottom body 19, contacting the flat lateral surface of piston 40 opposite that contacting guide 39, and supporting electronic components (not shown) for controlling actuator 37.
  • Chamber 34 presents an end portion 47 extending inside sunken portion 23 of bottom body 19, accessible from the outside by opening cover 28, and housing respective lever 14, the free end of arm 15 of which is positioned, in use, contacting the free end of respective piston 40.
  • casing 17 is closed by an end wall 48 perpendicular to direction 41 and fitted on its outer surface with a comb type connecting device 49 defined by a number of pairs of superimposed tabs 50 and 51.
  • Top tabs 50 present respective coaxial through holes 52 designed to receive a common hinge pin 53 (Fig.2); and bottom tabs 51 present respective coaxial through holes 54 parallel to holes 52 and recess 25, and designed to receive a common lock pin 55 (Fig.2) parallel to pin 53.
  • Each pair of superimposed tabs 50 and 51 defines, together with each adjacent pair of tabs 50 and 51, a groove 56 extending along the outer surface of wall 48, perpendicular to pins 53 and 55, and substantially equal in width to the thickness of tabs 50 and 51.
  • the two actuating units 16 of assembly 1 are connected to each other by a central bracket 57, which may be made integral with frame 2 by means of known connecting elements (not shown), and is selected from a number of central brackets 57 similar to one another but differing in width parallel to the longitudinal axis of respective actuating units 16.
  • the width of central bracket 57 is so selected as to achieve a given length of actuator assembly 1, and such that the center distance of the two opposite front recesses 25 of assembly 1 is substantially equal to the center distance of bars 10 and 11.
  • central bracket 57 presents two comb type connecting devices 58, each similar to device 49 and comprising at least two pairs of superimposed tabs 59 and 60 (Fig.1), each of which engages a respective groove 56 and is engaged by respective pins 53 and 55 for connecting actuating units 16 integral with each other.
  • the Fig.6 variation shows an actuator assembly 61 substantially identical to assembly 1, except that central bracket 57 is dispensed with, and comb type connecting devices 47 of actuating units 16 are connected directly by a top pin 53 and a bottom pin 55.
  • assembly 1 is placed beneath bed 3, in the space between bars 10 and 11; covers 28 are opened; and at least one of pins 55 is withdrawn to enable actuating units 16 to be set to the angular position shown in Fig.6 relative to assembly 61.
  • the angle formed by actuating units 16 is such as to enable levers 14 to be inserted inside end portion 47 of chamber 34, and recesses 25 to be positioned facing respective bars 10 and 11.
  • Units 16 are then aligned, and pin 55 (or both pins 55) assembled so as to insert bars 10 and 11 inside respective recesses 25 and so firmly connect assembly 1 to bed 3.
  • actuator assembly 61 without central bracket 57 may be employed.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Invalid Beds And Related Equipment (AREA)
EP93107167A 1992-05-04 1993-05-03 Dispositif d'actionnement, notamment pour lits d'hôspitaux articulés Withdrawn EP0568957A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH141892 1992-05-04
CH1418/92 1992-05-04

Publications (1)

Publication Number Publication Date
EP0568957A1 true EP0568957A1 (fr) 1993-11-10

Family

ID=4209994

Family Applications (1)

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EP93107167A Withdrawn EP0568957A1 (fr) 1992-05-04 1993-05-03 Dispositif d'actionnement, notamment pour lits d'hôspitaux articulés

Country Status (1)

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EP (1) EP0568957A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4433934A1 (de) * 1994-09-23 1996-03-28 Micas Gmbh & Co Kg Vorrichtung zur automatischen Verstellung von Möbelteilen
WO2001017399A1 (fr) * 1999-09-02 2001-03-15 Linak A/S Dispositif de commande rotatif, specialement conçu pour le montage de meubles reglables, de sommiers de lit et de lits separes
WO2001045536A3 (fr) * 1999-12-23 2001-12-27 Cimosys Ag Support reglable par moteur et destine au rembourrage d"un siege et/ou d"un meuble destine a s"allonger, par exemple d"un matelas ou d"un lit
WO2003045195A1 (fr) * 2001-11-26 2003-06-05 Linak A/S Mecanisme de commande pour mobilier, a moteur electrique pour mobilier, servant a deplacer mutuellement des parties d'un meuble
EP1190651A3 (fr) * 2000-09-22 2003-07-30 Franke GmbH & Co. KG Dispositif de réglage pour un siège ou pour un lit avec au moins une pièce pivotante par barre de torsion connectée au lit ou siège
US6742205B2 (en) 1999-12-23 2004-06-01 Cimosys Ag Adjustable padding device for a piece of furniture used for sitting and/or lying upon
US6763536B2 (en) 2000-04-11 2004-07-20 Cimosys Ag Motor adjustable support device for the upholstery of a piece of furniture that is used for sitting and/or laying upon
US6961971B2 (en) 1999-12-23 2005-11-08 Cimosys Ag Motor adjustable support device for the upholstery of a seat and/or reclining furniture
US7198325B2 (en) 2003-01-15 2007-04-03 Deon Ag Adjustable piece of seating furniture
US7386901B2 (en) 2003-06-05 2008-06-17 Cimosys Ag Modular system for assembling a motorized adjustable support apparatus for the upholstery of furniture for sitting and/or lying
WO2011006599A1 (fr) * 2009-07-15 2011-01-20 Linrot Holding Ag Mécanisme d’entraînement à moteur électrique pour meuble permettant de régler les éléments d’un meuble les uns par rapport aux autres, en particulier pour un sommier à lattes d’un lit
US11089881B2 (en) 2017-12-15 2021-08-17 Nanthealth, Inc. Modular mattress and bedframe system with surface positioning actuators

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8800360U1 (de) * 1988-01-14 1988-05-26 Niko Gesellschaft für Antriebstechnik mbH, 5253 Lindlar Antrieb für Lattenroste (II)
WO1989010715A1 (fr) * 1988-05-07 1989-11-16 Eckhart Dewert Agencement de reglage de grilles en lattes
US5063623A (en) * 1990-10-15 1991-11-12 Bathrick Leeland M Power module for an ariculated bed
DE9210801U1 (de) * 1992-08-20 1992-10-22 Dewert Antriebs- und Systemtechnik GmbH & Co. KG, 4983 Kirchlengern Verstelleinrichtung für ein Lattenrost

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8800360U1 (de) * 1988-01-14 1988-05-26 Niko Gesellschaft für Antriebstechnik mbH, 5253 Lindlar Antrieb für Lattenroste (II)
WO1989010715A1 (fr) * 1988-05-07 1989-11-16 Eckhart Dewert Agencement de reglage de grilles en lattes
US5063623A (en) * 1990-10-15 1991-11-12 Bathrick Leeland M Power module for an ariculated bed
DE9210801U1 (de) * 1992-08-20 1992-10-22 Dewert Antriebs- und Systemtechnik GmbH & Co. KG, 4983 Kirchlengern Verstelleinrichtung für ein Lattenrost

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4433934A1 (de) * 1994-09-23 1996-03-28 Micas Gmbh & Co Kg Vorrichtung zur automatischen Verstellung von Möbelteilen
WO2001017399A1 (fr) * 1999-09-02 2001-03-15 Linak A/S Dispositif de commande rotatif, specialement conçu pour le montage de meubles reglables, de sommiers de lit et de lits separes
US6961971B2 (en) 1999-12-23 2005-11-08 Cimosys Ag Motor adjustable support device for the upholstery of a seat and/or reclining furniture
US6742205B2 (en) 1999-12-23 2004-06-01 Cimosys Ag Adjustable padding device for a piece of furniture used for sitting and/or lying upon
US6754922B2 (en) 1999-12-23 2004-06-29 Cimosys Ag Motor-driven, adjustable supporting device for the upholstery of seating and/or reclining furniture, for example of a mattress or a bed
EP1410743A3 (fr) * 1999-12-23 2004-12-15 Cimosys AG Support réglable par moteur et destiné au rembourrage d'un meuble d'assise et/ou de couchage, par exemple d'un matelas ou d'un lit
WO2001045536A3 (fr) * 1999-12-23 2001-12-27 Cimosys Ag Support reglable par moteur et destine au rembourrage d"un siege et/ou d"un meuble destine a s"allonger, par exemple d"un matelas ou d"un lit
US6763536B2 (en) 2000-04-11 2004-07-20 Cimosys Ag Motor adjustable support device for the upholstery of a piece of furniture that is used for sitting and/or laying upon
EP1190651A3 (fr) * 2000-09-22 2003-07-30 Franke GmbH & Co. KG Dispositif de réglage pour un siège ou pour un lit avec au moins une pièce pivotante par barre de torsion connectée au lit ou siège
WO2003045195A1 (fr) * 2001-11-26 2003-06-05 Linak A/S Mecanisme de commande pour mobilier, a moteur electrique pour mobilier, servant a deplacer mutuellement des parties d'un meuble
CN100389706C (zh) * 2001-11-26 2008-05-28 利纳克有限公司 用于相对彼此调节家具的各部分的电动的家具驱动装置
US7198325B2 (en) 2003-01-15 2007-04-03 Deon Ag Adjustable piece of seating furniture
US7386901B2 (en) 2003-06-05 2008-06-17 Cimosys Ag Modular system for assembling a motorized adjustable support apparatus for the upholstery of furniture for sitting and/or lying
WO2011006599A1 (fr) * 2009-07-15 2011-01-20 Linrot Holding Ag Mécanisme d’entraînement à moteur électrique pour meuble permettant de régler les éléments d’un meuble les uns par rapport aux autres, en particulier pour un sommier à lattes d’un lit
US11089881B2 (en) 2017-12-15 2021-08-17 Nanthealth, Inc. Modular mattress and bedframe system with surface positioning actuators

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