EP0087430A1 - Device for adjusting the angular position of a pivoting support surface. - Google Patents

Device for adjusting the angular position of a pivoting support surface.

Info

Publication number
EP0087430A1
EP0087430A1 EP82902435A EP82902435A EP0087430A1 EP 0087430 A1 EP0087430 A1 EP 0087430A1 EP 82902435 A EP82902435 A EP 82902435A EP 82902435 A EP82902435 A EP 82902435A EP 0087430 A1 EP0087430 A1 EP 0087430A1
Authority
EP
European Patent Office
Prior art keywords
frame
frames
torsion spring
opposite sides
axis
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
Application number
EP82902435A
Other languages
German (de)
French (fr)
Other versions
EP0087430B1 (en
Inventor
Hans Fickler
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT82902435T priority Critical patent/ATE20638T1/en
Publication of EP0087430A1 publication Critical patent/EP0087430A1/en
Application granted granted Critical
Publication of EP0087430B1 publication Critical patent/EP0087430B1/en
Expired 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
    • A47C20/048—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by fluid means
    • 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 invention relates to a device for adjusting the angular position of a pivotable support surface, in particular the support surface for the head end of the mattress in a bed frame.
  • Bed frames with an adjustable head and / or foot part of the frame are known, each of which is pivoted up by a thrust drive about an axis of rotation parallel to the lying surface. Because of the small amount of space available between the lying surface and the floor, long lever arms cannot be used for the pivoting movements and, accordingly, fairly powerful thrust drives are necessary, which represent the greatest cost factor in such beds. Bed frames of this type are used in particular in hospitals and for nursing care, but also in private households, but are very expensive because the adjustable head and / or foot section is integrated in the special construction of the bed frame. People in need of care should in particular be able to operate the adjustable head part themselves in order to be able to position themselves for eating or reading etc. without outside help, which is why a motor drive is necessary for the adjustable part.
  • the object underlying the present invention was to provide a device for raising a part of the lying surface, in particular the head part, which can be used in any normal bed frame, which is provided with a motor drive and is easy to transport to more than one bed frame to be able to use one after the other, and in particular it is considerably cheaper than the conventional devices of this type.
  • the device If the device is to be used for any normal bed frame, it can because of the variety of designs the support for the mattress in the form of a slatted frame or spring frame etc. the space below this support surface for the mattress for accommodating the drive and the adjusting device are not used.
  • the problem here is to accommodate all the elements necessary for swiveling a support surface up and down, including the drive, in the smallest of spaces, because when not in use, the support surface swiveled downwards of the devices inserted under the mattress should not impair lying comfort or not be noticeably noticeable make, which is why the device should be extremely flat.
  • the object is that two frames pivotally connected to one another by means of an axis of rotation on a wheel, one of which is intended to lie horizontally on a support and the other forms the support surface which can be adjusted in a variable angular position with respect to the horizontal, under the effect of at least one in the area of the rotating axis, between the two frames effective prestressed torsion spring bar and at least one between the two Frame supported gas spring are pushed apart in the sense of an angle enlargement and that both frames are connected to each other by flexible traction means, by means of which the frame for the purpose of continuously changing the angle with the aid of a drive means arranged on one frame and acting on the traction means against the action of torsion spring bar and gas spring are pullable against each other or can be pivoted apart under the action of which.
  • Two torsion spring rods which are arranged parallel to the axis of rotation and to one another, are held with one end on opposite sides of the one frame and pressed with one respective angled other end against rolling elements arranged on opposite sides of the other frame.
  • two gas springs are expediently articulated with their one end on opposite sides of the one frame and their other end on opposite sides of the other frame.
  • a torsion spring bar and a gas spring work together on opposite sides and cause the high the pivoting support surface forming frame is pushed up.
  • a torsion spring bar and a gas spring are each arranged on the same frame side in such a way that as the angle between the two frames decreases the spring force of the pretensioned torsion spring bar increases the moment exerted by the gas spring on the frame in the sense of increasing the angle.
  • the torsion spring rod which is expediently preloaded during installation with a rotation angle of 50 °, is tensioned by a further approx. 70 ° when the two frames are pulled together. This strong spring force decreases when the frame is swung open, if at the same time the gas spring acting in the same direction exerts an increasing moment on the frame with an increasing effective lever arm.
  • a steel cable to one frame on opposite sides as a flexible traction means, which two steel cables are guided over deflection rollers arranged on the other frame and are attached with their other ends parallel to one another on a pivot lever mounted in the other frame, which indicated by one in the other frame arranged electric lift motor with pivoted on the pivot lever threaded spindle.
  • the motor swivels the swivel lever in one direction, the frame swung up under the action of the torsion spring bars and the gas springs is pulled down against the horizontal frame by pulling on the steel cables, while the frame held by the steel cables is reversed when the motor rotates and the direction of movement of the swivel lever is released for swinging up.
  • the device has a particular frame 1 to be placed on a horizontal base, in particular a bed frame (not shown in the drawing), on the one edge of which a further frame 3 of substantially the same size is pivotally attached by means of an axis of rotation 2.
  • a further frame 3 of substantially the same size is pivotally attached by means of an axis of rotation 2.
  • the frame 3 with the surface 5 forms the support surface against which the head-side end region of a mattress (not shown in the drawing) is supported, and which support surface should be set in any angular position relative to the horizontal frame 1, which should be possible by actuating a motor.
  • two torsion spring bars 6 and 7 extend in the lower frame 1 almost over the entire width of the frame 1 and can be passed through two bearing blocks 8 and 9.
  • the torsion spring bar 6 in the drawing is angled by 90 ° behind the bearing block 8 and its straight end is held in the bearing block 9 in a rotationally fixed manner, so that the entire length of the torsion spring bar can twist relative to this end that is held in place.
  • the torsion spring bar 7 behind it is angled by 90 ° in the drawing in front of the bearing block 9 and its free end is held in the bearing block 8 in a rotationally fixed manner.
  • the angled ends of the two torsion spring bars 6 and 7 are each pressed against a roller 10 and 11, which on the inside opposite sides of the frame 3 are mounted.
  • the angled ends of the two torsion spring bars move relative to the rollers.
  • the two torsion spring bars 6 and 7 are installed with a prestress corresponding to a swivel angle of 50 °.
  • the two torsion spring bars act in the sense of increasing the angle between the two frames, wherein they exert the greatest spring force when the two frames 1 and 3 lie parallel one above the other.
  • two gas springs 12 and 13 are attached to opposite sides of the two frames with one end on frame 1 and the other end on frame 3.
  • Each gas spring also works with a pressure of approx. 40 kg in the sense of increasing the angle between the two frames 1 and 3. If the two frames 1 and 3 lie one above the other in parallel, the gas spring can only be used act on the frame 3 with a very short effective lever arm. If the spring force of the two torsion spring bars 6 and 7 decreases with increasing angle between the frames starting from the position with frames 1 and 3 lying one above the other, the moment exerted by the two gas springs becomes increasingly larger due to the increasing effective lever arm, so that between the a slightly fluctuating force in the sense of increasing the angle between the frames is effective.
  • This force of the springs is counteracted by a cable pull, through which the two frames 1 and 3 are pulled against each other.
  • a first steel cable 14 is attached at one end to the frame 3 and guided over a deflection roller 15 which is rotatably mounted on the frame 1 at the level of the gas spring 12 and then via a further deflection roller 16 mounted in the corner of the frame 1 and finally via one on the longitudinal side of the frame arranged deflection roller 12 out.
  • the other end of this steel cable 14 is attached to a tensioning device 18, which is attached to a pivot lever 19.
  • This pivot lever 19 is pivotally mounted on the frame 1 by means of a pivot pin 20.
  • a second steel cable 21 is fastened at one end to the opposite side of the frame 3, guided over a deflection roller 22 mounted in the frame 1 at the level of the gas spring 13, then via a further deflection roller 23 arranged in the frame corner of the frame 1 and finally via a pulley 24 arranged on the longitudinal side of the frame, which is mounted on the same axis as the pulley 17 for the other steel cable 14.
  • the end of the steel cable 21 is fastened to a tensioning device which, like the tensioning device 18, is also fastened to the pivot lever 19.
  • a tensioning device which, like the tensioning device 18, is also fastened to the pivot lever 19.
  • the tensioning devices 18 and 25 are shown attached to one another on the swivel lever 19 for clarification, but in reality these fastening ends lie one above the other on the swivel lever, since the steel cables would otherwise be pulled unevenly.
  • the pivot lever 19 is pivoted with the aid of a lifting motor 26 in the direction of arrow 27, the frame 3 being pulled against the action of the two torsion spring bars 6 and 7 and by pulling on the two steel cables 14 and 21 both gas springs 12 and 13 is pulled against the lower frame 1.
  • the two frames 1 and 3 are parallel one above the other. From this end position, the frame 3 can be brought into any desired angular position with respect to the frame 1 by actuating the motor 26 in the opposite direction.
  • the lifting motor 26 is pivotally mounted in the frame 1 by means of a pivot pin 28 so that the motor can carry out the lateral movement caused by the movement of the connection point between the motor and the pivoting lever 19 on a circular arc.
  • a motor is selected which is somewhat too weak in relation to the required force and is therefore supported by a gas spring 29, which is connected in parallel to the motor 26 with one end likewise pivoted to the pivot lever 19 and with the other end to the frame 1 and exerts a force in the direction of movement on the pivot lever, which leads to a reduction in the angle between the frames.
  • the lifting motor 26 is connected to the mains via a cable 30. The direction of movement of the lifting motor can be reversed by actuating a switch 31.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

Le dispositif présente deux cadres (1, 3) reliés entre eux par un axe de rotation (2) et tenus écartés l'un de l'autre par des barres de torsion (6, 7) et par des ressorts pneumatiques (12, 13) précontraints et disposés près de l'axe (2). Le cadre supérieur incliné (3) sert d'appui pour la partie d'un matelas située près de la tête d'un sommier. Dans le but de modifier l'angle d'inclinaison du cadre supérieur (3), on prévoit, fixés sur celui-ci, des câbles en acier (14, 21), qui sont déviés par des poulies (15, 16, 17, 22, 23, 24) disposées sur l'autre cadre (1) et reliés à un levier pivotant (19) sur ce dernier cadre (1) et actionné par un moteur de levage (26). En actionnant le moteur de levage (26) dans un sens, les câbles (14, 21) font pivoter un cadre (1) contre l'autre (3) et contre la réaction des barres de torsion (6, 7) et des ressorts pneumatiques (12, 13). En l'actionnant dans le sens contraire, les cadres (1, 3) s'écartent l'un de l'autre sous l'effet des barres de torsion (6, 7) et des ressorts pneumatiques (12, 13).The device has two frames (1, 3) connected together by an axis of rotation (2) and held apart from each other by torsion bars (6, 7) and by pneumatic springs (12, 13 ) prestressed and arranged near the axis (2). The inclined upper frame (3) serves as a support for the part of a mattress located near the head of a box spring. In order to modify the angle of inclination of the upper frame (3), steel cables (14, 21) are provided, fixed thereto, which are deflected by pulleys (15, 16, 17, 22, 23, 24) arranged on the other frame (1) and connected to a pivoting lever (19) on this last frame (1) and actuated by a lifting motor (26). By operating the lifting motor (26) in one direction, the cables (14, 21) pivot one frame (1) against the other (3) and against the reaction of the torsion bars (6, 7) and springs tires (12, 13). By operating it in the opposite direction, the frames (1, 3) move away from each other under the effect of the torsion bars (6, 7) and the air springs (12, 13).

Description

VORRICHTUNG ZUM VERSTELLEN DER WINKELLAGE EINER SCHWENKBEWEGLICHEN STUETZFLAECHE DEVICE FOR ADJUSTING THE ANGLE POSITION OF A PIVOTING SUPPORTING SURFACE
Die Erfindung betrifft eine Vorrichtung zum Verstellen der Winkelllage einer schwenkbeweglichen Stützfläche, insbesondere der Auflagefläche für das kopfseitige Ende der Matratze in einem Bettgestell.The invention relates to a device for adjusting the angular position of a pivotable support surface, in particular the support surface for the head end of the mattress in a bed frame.
Es sind Bettgestelle mit einem verstellbaren Kopf- und/ oder Fussteil des Gestells bekannt, die jeweils durch einen Schubantrieb um eine zur Liegefläche parallele Drehachse hochgeschwenkt werden. Wegen des geringen zur Verfügung stehenden Platzes zwischen der Liegefläche und dem Boden können für die Schwenkbewegungen keine langen Hebelarme verwendet werden und dementsprechend sind ziemlich kräftige Schubantriebe notwenig, die den grössten Koεtenfaktor bei derartigen Betten darstellen. Bettgestelle dieser Art werden insbesondere in Spitälern und für Pflegefälle, aber auch im privaten Haushalt verwendet, sind jedoch sehr teuer, da der verstellbare Kopf- und/oder Fussteil in der Spezialkonstruktion des Bettgestells integriert ist. Pflegebedürftige Personen sollten insbesondere den verstellbaren Kopfteil selbst bedienen können, um sich zum Essen oder Lesen etc. ohne fremde Hilfe in die für sie günstige Position bringen zu können, weshalb ein motorischer Antrieb für den verstellbaren Teil notwenig ist.Bed frames with an adjustable head and / or foot part of the frame are known, each of which is pivoted up by a thrust drive about an axis of rotation parallel to the lying surface. Because of the small amount of space available between the lying surface and the floor, long lever arms cannot be used for the pivoting movements and, accordingly, fairly powerful thrust drives are necessary, which represent the greatest cost factor in such beds. Bed frames of this type are used in particular in hospitals and for nursing care, but also in private households, but are very expensive because the adjustable head and / or foot section is integrated in the special construction of the bed frame. People in need of care should in particular be able to operate the adjustable head part themselves in order to be able to position themselves for eating or reading etc. without outside help, which is why a motor drive is necessary for the adjustable part.
Die der vorliegenden Erfindung zugrundeliegende Aufgabe bestand darin, eine in jedem normalen Bettgestell verwendbare Vorrichtung zum Hochstellen eines Teils der Liegefläche, insbesondere des Kopfteils, zu schaffen, die mit einem motorischen Antrieb versehen ist und leicht zu transportieren ist, um sie bei mehr als einem Bettgestell nacheinander verwenden zu können, und die insbesondere wesentlich billiger als die herkömmlichen Einrichtungen dieser Art ist.The object underlying the present invention was to provide a device for raising a part of the lying surface, in particular the head part, which can be used in any normal bed frame, which is provided with a motor drive and is easy to transport to more than one bed frame to be able to use one after the other, and in particular it is considerably cheaper than the conventional devices of this type.
Wenn die Vorrichtung für jedes normale Bettgestell verwendbar sein soll, kann wegen der Vielzahl von Bauformen der Auflage für die Matratze in Gestalt eines Lattenrostes oder Sprungfederrahmens etc. der Platz unterhalb dieser Auflagefläche für die Matratze zum Unterbringen des Antriebs und der Verstell.einrichtung nicht verwendet werden. Das Problem besteht demnach hier in der Unterbringung aller für das Auf- und Abwärtsschwenken einer Stützfläche notwendigen Elemente einschliesslich Antrieb auf kleinstem Raum, denn bei Nichtgebrauch soll die nach unten geschwenket Stützfläche der unter die Matratze eingeschobenen Vorrichtungen den Liegekomfort nicht beeinträchtigen bzw. sich nicht störend bemerkbar machen, weshalb die Vorrichtung extrem flach ausgebildet sein soll.If the device is to be used for any normal bed frame, it can because of the variety of designs the support for the mattress in the form of a slatted frame or spring frame etc. the space below this support surface for the mattress for accommodating the drive and the adjusting device are not used. The problem here is to accommodate all the elements necessary for swiveling a support surface up and down, including the drive, in the smallest of spaces, because when not in use, the support surface swiveled downwards of the devices inserted under the mattress should not impair lying comfort or not be noticeably noticeable make, which is why the device should be extremely flat.
Die Lösung der Aufgabe besteht erfindungsgemäss darin, dass zwei mittels einer Drehachse an einem Rad schwenkbeweglich miteinander verbundene Rahmen, von denen einer horizontal auf einer Unterlage aufzuliegen bestimmt ist und der andere die gegenüber der Horizontalen in variabler Winkellage einstellbare Stützfläche bildet, unter der Wirkung mindestens eines imBereich der Drehbachse angeordneten, zwischen beiden Rahmen wirksamen vorgespannten Torsionsfederstabes und mindestens einer zwischen beiden Rahmen abgestützter Gasfeder im Sinne einer Winkelver grösserung auseinandergedrückt sind und dass beide Rahmen durch flexible Zugmittel miteinander verbunden sind, mittels welcher die Rahmen zwecks stufenloser Veränderung des Winkels mit Hilfe eines an dem einen Rahmen angeordneten und am Zugmittel angreifenden Antriebsmittel gegen die Wirkung von Torsionsfederstab und Gasfeder gegeneinander ziehbar bzw. unter deren Wirkung auseinander schwenkbar sind.According to the invention, the object is that two frames pivotally connected to one another by means of an axis of rotation on a wheel, one of which is intended to lie horizontally on a support and the other forms the support surface which can be adjusted in a variable angular position with respect to the horizontal, under the effect of at least one in the area of the rotating axis, between the two frames effective prestressed torsion spring bar and at least one between the two Frame supported gas spring are pushed apart in the sense of an angle enlargement and that both frames are connected to each other by flexible traction means, by means of which the frame for the purpose of continuously changing the angle with the aid of a drive means arranged on one frame and acting on the traction means against the action of torsion spring bar and gas spring are pullable against each other or can be pivoted apart under the action of which.
Zwecksmässig sind zwei zur Drehachse und zu einander parallel angeordnete Torsionsfederstäbe mit jeweils einem Ende an einander gegenüberliegenden Seiten des einen Rahmens festgehalten und mit einem jeweils abgewinkelten anderen Ende gegen an einander gegenüberliegende Seiten des anderen Rahmens angeordnete Wälzkörper angedrückt.Two torsion spring rods, which are arranged parallel to the axis of rotation and to one another, are held with one end on opposite sides of the one frame and pressed with one respective angled other end against rolling elements arranged on opposite sides of the other frame.
Ferner sind zweckmässig zwei Gasfedern mit ihrem jeweils einen Ende an einander gegenüberliegenden Seiten des einen Rahmens und mit ihrem jeweils anderen Ende an einander gegenüberliegendenSeiten des anderen Rahmens gelenkig abgestützt. Damit wirken auf einander gegenüberliegenden Seiten jeweils ein Torsionsfederstab und eine Gasfeder zusammen und bewirken, dass der die hoch schwenkbare Stützfläche bildende Rahmen hochgedrückt wird. Dabei sind je ein Torsionsfederstab und eine Gasfeder auf der gleichen Rahmenseite derart zu einander angeordnet, dass bei mit zunehmendem Winkel zwischen den beiden Rahmen nachlassender Federkraft des vorgespannten Torsionsfederstabes das von der Gasfeder auf den Rahmen im Sinne der Winkelvergrösserung ausgeübte Moment fortlaufend zunimmt. Der beim Einbau zweckmässig mit einem Drehwinkel von 50° vorgespannte Torsionsfederstab wird beim Gegeneinanderziehen der beiden Rahmen um weitere ca. 70° gespannt. Diese starke Federkraft nimmt dann beim Aufschwenken der Rahmen ab, wenn gleichzeitig die in der gleichen Richtung wirkende Gasfeder mit einem zunehmenden wirksamen Hebelarm ein grösser werdendes Moment auf den Rahmen ausübt.Furthermore, two gas springs are expediently articulated with their one end on opposite sides of the one frame and their other end on opposite sides of the other frame. This means that a torsion spring bar and a gas spring work together on opposite sides and cause the high the pivoting support surface forming frame is pushed up. A torsion spring bar and a gas spring are each arranged on the same frame side in such a way that as the angle between the two frames decreases the spring force of the pretensioned torsion spring bar increases the moment exerted by the gas spring on the frame in the sense of increasing the angle. The torsion spring rod, which is expediently preloaded during installation with a rotation angle of 50 °, is tensioned by a further approx. 70 ° when the two frames are pulled together. This strong spring force decreases when the frame is swung open, if at the same time the gas spring acting in the same direction exerts an increasing moment on the frame with an increasing effective lever arm.
Ferner ist zweckmässig, an dem einen Rahmen an einander gegenüberliegenden Seiten als flexibles Zugmittel je ein Stahlseil befestigt, welche beiden Stahlseile über an dem anderen Rahmen angeordnete Umlenkrollen geführt und mit ihren anderen Enden parallel nebeneinander an einem in dem anderen Rahmen gelagerten Schwenkhebel befestigt sind, welcher durch einen in dem anderen Rahmen ange ordneten elektrischen Hubmotor mit an dem Schwenkhebel angelenkter Gewindespindel verschwenkbar ist. Wenn der Motor den Schwenkhebel in der einen Richtung verschwenkt, wird der unter der Wirkung der Torsionsfederstäbe und der Gasfedern hochgeschwenkte Rahmen durch Zug an den Stahlseilen gegen den horizontalen Rahmen heruntergezogen, während bei umgekehrter Drehrichtung des Motors und Bewegungsrichtung des Schwenkhebels der durch die Stahlseile gehaltene Rahmen zum Hochschwenken frei gegeben wird.It is also expedient to attach a steel cable to one frame on opposite sides as a flexible traction means, which two steel cables are guided over deflection rollers arranged on the other frame and are attached with their other ends parallel to one another on a pivot lever mounted in the other frame, which indicated by one in the other frame arranged electric lift motor with pivoted on the pivot lever threaded spindle. When the motor swivels the swivel lever in one direction, the frame swung up under the action of the torsion spring bars and the gas springs is pulled down against the horizontal frame by pulling on the steel cables, while the frame held by the steel cables is reversed when the motor rotates and the direction of movement of the swivel lever is released for swinging up.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend an Hand der Zeichnung erläutert, in der in schaubildlicher, nicht masstablicher Darstellung das Prinzip der Vorrichtung gezeigt ist.An embodiment of the invention is explained below with reference to the drawing, in which the principle of the device is shown in a diagrammatic, not to scale.
Die Vorrichtung weist einen auf einer horizontalen Unterlage, insbesondere einem in der Zeichnung nicht dargestellten Bettgestell aufzuliegenden bestimmten Rahmen 1 auf, an dessen einem Rand mittels einer Drehachse 2 ein weiterer, im wesentlichen gleich grosser Rahmen 3 schwenkbeweglich befestigt ist. An jedem Rahmen 1 und 3, dessen parallel zur Drehachse 2 gemessene Breite etwa der Breite eines Bettgestells entspricht, ist an der Aussen seite eine Verkleidungsfläche 4 bzw. 5 befestigt, sodass die Vorrichtung äusserlich mit einem ganz flachen Koffer vergleichbar ist. Der Rahmen 3 mit der Fläche 5 bildet die Stützfläche, gegen die sich der kopfseitige Endbereich einer in der Zeichnung nicht dargestellten Matratze abstützt, und welche Stützfläche in beliebiger Winkellage gegenüber dem horizontalen Rahmen 1 einzustellen sein soll, was durch Betätigung eines Motors möglich sein soll.The device has a particular frame 1 to be placed on a horizontal base, in particular a bed frame (not shown in the drawing), on the one edge of which a further frame 3 of substantially the same size is pivotally attached by means of an axis of rotation 2. On each frame 1 and 3, whose width measured parallel to the axis of rotation 2 corresponds approximately to the width of a bed frame, is on the outside side a cladding surface 4 or 5 attached, so that the device is externally comparable to a very flat case. The frame 3 with the surface 5 forms the support surface against which the head-side end region of a mattress (not shown in the drawing) is supported, and which support surface should be set in any angular position relative to the horizontal frame 1, which should be possible by actuating a motor.
Parallel zur Drehachse 2 erstrecken sich im unteren Rahmen 1 zwei Torsionsfederstäbe 6 und 7 nahezu über die ganze Breite des Rahmens 1 und sind dabei durch zwei Lagerklötze 8 und 9 hindurchführbar. Der in der Zeichnung vordere Torsionsfederstab 6 ist hinter dem Lagerklotz 8 um 90° abgewinkelt und sein gerades Ende ist im Lagerklotz 9 drehfest gehalten, sodass die gesamte Länge desTorsionsfederstabes sich gegenüber diesem festgehaltenen Ende verdrehen kann. Der dahinter liegende Torsionsfederstab 7 ist in der Zeichnung vor dem Lagerklotz 9 um 90° abgewinkelt und sein freies Ende ist im Lagerklotz 8 drehfest gehalten. Die abgewinkelten Enden der beiden Torsionsfederstäbe 6 und 7 sind jeweils gegen eine Rolle 10 und 11 angedrückt, die an der Innenseite auf einander gegenüberliegenden Seiten des Rahmens 3 gelagert sind. Beim Verschwenken des Rahmens 3 bewegen sich die abgewinkelten Enden der beiden Torsionsfederstäbe relativ zu den Rollen. In der ih der Zeichnung dargestellten SchwenkStellung des Rahmens 3 mit einem Winkel zwischen den beiden Rahmen von ca. 70° sind die beiden Torsionsfederstäbe 6 und 7 mit einer Vorspannung entsprechend einem Drehweinkel von 50° eingebaut. Die beiden Torsionsfederstäbe wirken im Sinne einer Vergrosserung des Winkels zwischen den beiden Rahmen, wobei sie die grösste Federkraft ausüben, wenn die beiden Rahmen 1 und 3 parallel übereinander liegen.Parallel to the axis of rotation 2, two torsion spring bars 6 and 7 extend in the lower frame 1 almost over the entire width of the frame 1 and can be passed through two bearing blocks 8 and 9. The torsion spring bar 6 in the drawing is angled by 90 ° behind the bearing block 8 and its straight end is held in the bearing block 9 in a rotationally fixed manner, so that the entire length of the torsion spring bar can twist relative to this end that is held in place. The torsion spring bar 7 behind it is angled by 90 ° in the drawing in front of the bearing block 9 and its free end is held in the bearing block 8 in a rotationally fixed manner. The angled ends of the two torsion spring bars 6 and 7 are each pressed against a roller 10 and 11, which on the inside opposite sides of the frame 3 are mounted. When the frame 3 is pivoted, the angled ends of the two torsion spring bars move relative to the rollers. In the swivel position of the frame 3 shown in the drawing, with an angle between the two frames of approximately 70 °, the two torsion spring bars 6 and 7 are installed with a prestress corresponding to a swivel angle of 50 °. The two torsion spring bars act in the sense of increasing the angle between the two frames, wherein they exert the greatest spring force when the two frames 1 and 3 lie parallel one above the other.
Zusätzlich sind zwei Gasfedern 12 und 13 an einander gegenüberliegenden Seiten der beiden Rahmen mit dem einen Ende am Rahmen 1 und mit dem jeweils anderen Ende am Rahmen 3 befestigt.In addition, two gas springs 12 and 13 are attached to opposite sides of the two frames with one end on frame 1 and the other end on frame 3.
Jede Gasfeder wirkt mit einem Druck von ca. 40 kg ebenfalls im Sinne einer Vergrosserung des Winkels zwischen den beiden Rahmen 1 und 3. Wenn die beiden Rahmen 1 und 3 parallel übereinander liegen, kann die Gasfeder nur mit einem sehr kurzen wirksamen Hebelarm auf den Rahmen 3 einwirken. Wenn von der Stellung mit prallel überein anderliegenden Rahmen 1 und 3 ausgehend die Federkraft der beiden Torsionsfederstäbe 6 und 7 mit zunehmenden Winkel zwischen den Rahmen abnimmt, wird das von den beiden Gasfedern ausgeübte Moment auf Grund des grösser werdenden wirksamen Hebelarms zunehmend grösser, sodass zwischen den beiden Rahmen eine nur wenig schwankende Kraft im Sinne einer Vergrosserung des Winkels zwischen den Rahmen wirksam ist.Each gas spring also works with a pressure of approx. 40 kg in the sense of increasing the angle between the two frames 1 and 3. If the two frames 1 and 3 lie one above the other in parallel, the gas spring can only be used act on the frame 3 with a very short effective lever arm. If the spring force of the two torsion spring bars 6 and 7 decreases with increasing angle between the frames starting from the position with frames 1 and 3 lying one above the other, the moment exerted by the two gas springs becomes increasingly larger due to the increasing effective lever arm, so that between the a slightly fluctuating force in the sense of increasing the angle between the frames is effective.
Dieser Kraft der Federn wird durch einen Seilzug entgegengewirkt, durch den die beiden Rahmen 1 und 3 gegeneinander gezogen werden. Ein erstes Stahlseil 14 ist mit einem Ende am Rahmen 3 befestigt und über eine am Rahmen 1 auf der Höhe der Gasfeder 12 drehbar gelagerte Umlenkrolle 15 geführt und anschliessend über eine weitere in der Rahmenecke des Rahmens 1 gelagerte Umlenkrolle 16 und schliesslich über eine an der Rahmenlängsseite angeordnete Umlenkrolle 12 geführt. Das andere Ende dieses Stahlseils 14 ist an einer Spannvorrichtung 18 befestigt, welche an einem Schwenkhebel 19 befestigt ist. Dieser Schwenkhebel 19 ist mittels eines Drehzapfens 20 am Rahmen 1 schwenkbar gelagert. Ein zweites Stahlseil 21 ist mit dem einen Ende auf der gegenüberliegenden Seite des Rahmens 3 befestigt, über eine im Rahmen 1 auf der Höhe der Gasfeder 13 gelagerte Umlenkrolle 22 geführt, anschliessend über eine in der Rahmenecke des Rahmens 1 angeordnete weitere Umlenkrolle 23 und schliesslich über eine an der Rahmenlängsseite angeordnete Umlenkrolle 24 geführt, die auf der gleichen Achse wie die Umlenkrolle 17 für das andere Stahlseil 14 gelagert ist.This force of the springs is counteracted by a cable pull, through which the two frames 1 and 3 are pulled against each other. A first steel cable 14 is attached at one end to the frame 3 and guided over a deflection roller 15 which is rotatably mounted on the frame 1 at the level of the gas spring 12 and then via a further deflection roller 16 mounted in the corner of the frame 1 and finally via one on the longitudinal side of the frame arranged deflection roller 12 out. The other end of this steel cable 14 is attached to a tensioning device 18, which is attached to a pivot lever 19. This pivot lever 19 is pivotally mounted on the frame 1 by means of a pivot pin 20. A second steel cable 21 is fastened at one end to the opposite side of the frame 3, guided over a deflection roller 22 mounted in the frame 1 at the level of the gas spring 13, then via a further deflection roller 23 arranged in the frame corner of the frame 1 and finally via a pulley 24 arranged on the longitudinal side of the frame, which is mounted on the same axis as the pulley 17 for the other steel cable 14.
Das Ende des Stahlseils 21 ist an einer Spannvorrichtung befestigt, welche ebenfalls wie die Spannvorrichtung 18 an demSchwenkhebel 19 befestigt ist. In der Zeichnung sind zur Verdeutlichung die SpannVorrichtungen 18 und 25 nebeneinander am Schwenkhebel 19 befestigt dargestellt, jedoch liegen in Wirklichkeit diese Befestigungsenden am Schwenkhebel übereinander, da die Stahlseile sonst ungleich gezogen würden.The end of the steel cable 21 is fastened to a tensioning device which, like the tensioning device 18, is also fastened to the pivot lever 19. In the drawing, the tensioning devices 18 and 25 are shown attached to one another on the swivel lever 19 for clarification, but in reality these fastening ends lie one above the other on the swivel lever, since the steel cables would otherwise be pulled unevenly.
Der Schwenkhebel 19 wird mit Hilfe eines .Hubmotors 26 in Richtung des Pfeils 27 verschwenkt, wobei durch Zug an den beiden Stahlseilen 14 und 21 der Rahmen 3 gegen die Wirkung der beiden Torsionsfederstäbe 6 und 7 und der beiden Gasfedern 12 und 13 gegen den unteren Rahmen 1 gezogen wird. In der Endlage liegen die beiden Rahmen 1 und 3 parallel übereinander. Aus dieser Endlage kann durch Betätigung des Motors 26 in Gegenrichtung der Rahmen 3 in jede gewünschte Winkellage bezüglich des Rahmens 1 gebracht werden. Der Hubmotor 26 ist mittels eines Drehzapfens 28 im Rahmen 1 schwenkbeweglich gelagert, damit der Motor die durch die Bewegung der Verbindungsstelle zwischen Motor und Schwenkhebel 19 auf einem Kreisbogen bedingte seitliche Bewegung ausführen kann. Damit ein zwischen den beiden Rahmen 1 und 3 bzw. den beiden Flächen 4 und 5 unterzubringender Hobmotor einen möglichst kleinen Durchmesser hat, ist ein Motor gewählt, der in Bezug auf die erforderliche Kraft etwas zu schwach ist und deshalb durch eine Gasfeder 29 unterstützt wird, die zum Motor 26 parallel geschaltet mit dem einen Ende ebenfalls am Schwenkhebel 19 und mit dem anderen Ende am Rahmen 1 angelenkt ist und auf den Schwenkhebel eine Kraft in der Bewungsrichtung ausübt, die zu einer Verkleinerung des Winkels zwischen den Rahmen führt. Um die Vorrichtung in Betrieb zu setzen, wird der Hubmotor 26 über ein Kabel 30 an das Stromnetz angeschlossen. Durch Betätigung eines Schalters 31 lässt sich die Bewegungsrichtung des Hubmotors umkehren. The pivot lever 19 is pivoted with the aid of a lifting motor 26 in the direction of arrow 27, the frame 3 being pulled against the action of the two torsion spring bars 6 and 7 and by pulling on the two steel cables 14 and 21 both gas springs 12 and 13 is pulled against the lower frame 1. In the end position, the two frames 1 and 3 are parallel one above the other. From this end position, the frame 3 can be brought into any desired angular position with respect to the frame 1 by actuating the motor 26 in the opposite direction. The lifting motor 26 is pivotally mounted in the frame 1 by means of a pivot pin 28 so that the motor can carry out the lateral movement caused by the movement of the connection point between the motor and the pivoting lever 19 on a circular arc. So that a hob motor to be accommodated between the two frames 1 and 3 or the two surfaces 4 and 5 has the smallest possible diameter, a motor is selected which is somewhat too weak in relation to the required force and is therefore supported by a gas spring 29, which is connected in parallel to the motor 26 with one end likewise pivoted to the pivot lever 19 and with the other end to the frame 1 and exerts a force in the direction of movement on the pivot lever, which leads to a reduction in the angle between the frames. In order to put the device into operation, the lifting motor 26 is connected to the mains via a cable 30. The direction of movement of the lifting motor can be reversed by actuating a switch 31.

Claims

P A T E N T A N S P R U E C H E PATENT CLAIMS
1. Vorrichtung zum Verstellen der Winkellage einer schwenk beweglichen Stützfläche, insbesondere der Auflagefläche für das kopfseitige Ende der Matratze in einem Bettgestell, dadurch gekennzeichnet, dass zwei mittels einer Drehachse (2) an einem Rand schwenkbeweglich miteinander verbundene Rahmen (1,3), von denen einer (1) horizontal auf einer Unterlage aufzuliegen bestimmt ist und der andere die gegenüber der Horizontalen in variabler Winkellage einstellbareStützflache bildet, unter der Wirkung mindestens eines im Bereich der Drehachse (2) angeordneten, zwischen beiden Rahmen (1,3) wirksamen Torsionsfederstabes (6,7) und mindestens einer zwischen beiden Rahmen abgestützten Gasfeder (12,13) im Sinne einer Winkelvergrösserung auseinandergedrückt sind und dass beide Rahmen (1,3) durch flexible Zugmittel (14,21) miteinander verbunden sind, mittels welcher die Rahmen (1,3) zwecks stufenloser Veränderung des Winkels mit Hilfe eines an dem einen Rahmen angeordneten und am Zugmittel angreifenden Antriebsmittels (19,26) gegen die Wirkung von Torsionsfederstab und Gasfeder gegeneinander ziehbar bzw. unter deren Wirkung auseinander schwenkbar sind.1. Device for adjusting the angular position of a pivotally movable support surface, in particular the support surface for the head-side end of the mattress in a bed frame, characterized in that two frames (1, 3) pivotally connected to one another by an axis of rotation (2) at one edge one (1) of which is intended to lie horizontally on a base and the other of which forms the support surface that can be adjusted in a variable angular position relative to the horizontal, under the action of at least one torsion spring rod (2) arranged in the region of the axis of rotation (2) and acting between the two frames (1,3) 6.7) and at least one gas spring (12, 13) supported between the two frames are pressed apart in the sense of an angular enlargement and that both frames (1, 3) are connected to one another by flexible traction means (14, 21) by means of which the frame (1,3) for the purpose of stepless change of the angle with the aid of a drive means (19, 26) arranged on the frame and engaging the traction means against the action of the torsion spring bar and gas spring can be pulled against one another or pivoted apart under their effect.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass zwei zueinander und zur Drehachse (2) parallel angeordnete Torsionsfederstäbe (6,7) mit jeweils einem Ende an einander gegenüberliegenden Seiten des einen Rahmens (1) festgehalten sind und mit einem jeweils abgewinkelten anderen Ende gegen an einander gegenüberliegenden Seiten des anderen Rahmens ( 3) angeordnete Wälzkörper (10,11) angedrückt sind.2. Device according to claim 1, characterized in that two torsion spring bars (6, 7) arranged parallel to one another and to the axis of rotation (2) are each held with one end on opposite sides of the one frame (1) and with an angled other end are pressed against rolling elements (10, 11) arranged on opposite sides of the other frame (3).
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass zwei Gasfedern (12,13) mit ihrem jeweils einen Ende an einander gegenüberliegenden Seiten des einen Rahmens (1) und mit ihrem anderen Ende an einander gegenüberliegenden Seiten des anderen Rahmens (3) gelenkig abgestützt sind. 3. Device according to claim 1, characterized in that two gas springs (12, 13) are supported in an articulated manner with their respective one end on opposite sides of the one frame (1) and with their other end on opposite sides of the other frame (3) are.
4. Vorrichtung nach den Ansprüchen 2 und 3, dadurch gekennzeichnet, dass je ein abgewinkeltes Torsionsfederstab ende (6,7) und eine Gasfeder (12,13) auf der gleichen Rahmenseite derart zueinander angeordnet sind, dass bei mit zunehmenden Winkel zwischen den Rahmen (1,3) nachlassender Federkraft des vorgespannten Torsionsfeder stabes das von der Gasfeder auf den Rahmen im Sinne der Winkelvergrösserung ausgeübte Moment zunimmt.4. Device according to claims 2 and 3, characterized in that an angled torsion spring rod end (6,7) and a gas spring (12,13) are arranged on the same frame side in such a way that with increasing angle between the frame ( 1.3) diminishing spring force of the prestressed torsion spring bar increases the moment exerted by the gas spring on the frame in the sense of increasing the angle.
5. Vorrichtung nach Anspruch 1, dadurch gekannzeichnet, dass an dem einen Rahmen (3) an einander gegenüberliegenden Seiten als flexible Zugmittel je ein Stahlseil (14,21) befestigt ist, welche Stahlseile über an dem anderen Rahmen (1) angeordneten ümlenkrollen (15,16,17,22,23,24) geführt und mit den jeweils anderen Enden parallel nebeneinander an einem in dem anderen Rahmen (1) gelagerten Schwenkhebel (19) befestigt sind, welche durch einen in dem anderen Rahmen (1) angeordneten Hubmotor (26) mit an dem Schwenkhebel (19) angelenkter .Gewindespindel verschwenkbar ist. 5. The device according to claim 1, characterized in that a steel cable (14, 21) is attached to the one frame (3) on opposite sides as flexible traction means, which steel cables are arranged on the other frame (1) by deflecting pulleys (15 , 16, 17, 22, 23, 24) and are fastened with the other ends in parallel next to one another on a pivot lever (19) mounted in the other frame (1), which is operated by a lifting motor () in the other frame (1). 26) with the threaded spindle articulated on the swivel lever (19).
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass an dem Schwenkhebel (19) eine die Wirkung des Hubmotors (26) unterstützende Gasfeder (29) angelenkt ist, deren anderes Ende an dem den Schwenkhebel tragenden Rahmen (1) abgestützt ist und dass von der Gasfeder (29) und dem Hubmotor (26) zusammen auf den Schwenkhebel (19) ausgeübte Moment in jeder Winkellage des verschwenkbaren Rahmens (3) grösser ist als das von den im Bereich der Drehachse angeordneten Torsionsfederstäben (6,7). und Gasfedern (12,13) über die Stahlseile (14,21) auf den Schwenkhebel (19) einwirkende Moment. 6. The device according to claim 5, characterized in that on the pivot lever (19) an effect of the lifting motor (26) supporting gas spring (29) is articulated, the other end of which is supported on the frame carrying the pivot lever (1) and that the gas spring (29) and the lifting motor (26) together on the swivel lever (19) the torque exerted in each angular position of the swivel frame (3) is greater than that of the torsion spring bars (6, 7) arranged in the region of the axis of rotation. and gas springs (12, 13) via the steel cables (14, 21) acting on the swivel lever (19).
EP82902435A 1981-09-09 1982-08-25 Device for adjusting the angular position of a pivoting support surface Expired EP0087430B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82902435T ATE20638T1 (en) 1981-09-09 1982-08-25 DEVICE FOR ADJUSTING THE ANGLE POSITION OF A PIVOTABLE SUPPORT SURFACE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5816/81A CH651739A5 (en) 1981-09-09 1981-09-09 DEVICE FOR ADJUSTING THE ANGLE POSITION OF A PIVOTING SUPPORT AREA.
CH5816/81 1981-09-09

Publications (2)

Publication Number Publication Date
EP0087430A1 true EP0087430A1 (en) 1983-09-07
EP0087430B1 EP0087430B1 (en) 1986-07-09

Family

ID=4299771

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Application Number Title Priority Date Filing Date
EP82902435A Expired EP0087430B1 (en) 1981-09-09 1982-08-25 Device for adjusting the angular position of a pivoting support surface

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US (1) US4458370A (en)
EP (1) EP0087430B1 (en)
JP (1) JPS58501410A (en)
AU (1) AU8768282A (en)
CA (1) CA1196751A (en)
CH (1) CH651739A5 (en)
DE (1) DE3271936D1 (en)
IT (1) IT1155235B (en)
WO (1) WO1983000805A1 (en)

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GB2305851B (en) * 1995-09-13 1999-09-08 Nesbit Evans Limited Improvements relating to backrests
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Also Published As

Publication number Publication date
CA1196751A (en) 1985-11-19
JPS58501410A (en) 1983-08-25
CH651739A5 (en) 1985-10-15
IT1155235B (en) 1987-01-21
AU8768282A (en) 1983-03-28
DE3271936D1 (en) 1986-08-14
US4458370A (en) 1984-07-10
JPH038204B2 (en) 1991-02-05
WO1983000805A1 (en) 1983-03-17
IT8249089A0 (en) 1982-09-08
EP0087430B1 (en) 1986-07-09

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