EP0315588B1 - Articulation for a bed with multiple bed sections - Google Patents

Articulation for a bed with multiple bed sections Download PDF

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Publication number
EP0315588B1
EP0315588B1 EP88810724A EP88810724A EP0315588B1 EP 0315588 B1 EP0315588 B1 EP 0315588B1 EP 88810724 A EP88810724 A EP 88810724A EP 88810724 A EP88810724 A EP 88810724A EP 0315588 B1 EP0315588 B1 EP 0315588B1
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EP
European Patent Office
Prior art keywords
housing
oscillating
linkage
fitting according
support part
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EP88810724A
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German (de)
French (fr)
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EP0315588A1 (en
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Josef Schätti
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Individual
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Individual
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Priority to AT88810724T priority Critical patent/ATE77218T1/en
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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
    • 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 an articulated fitting for the articulated connection of two elements, in particular for beds with a multi-part bed surface.
  • Articulated fittings are often used in the furniture industry to pivot movable parts such as doors, lids, backrests and the like.
  • Such joint fittings can also be used for other purposes, e.g. on gripper arms for robots etc.
  • the reclining surfaces are normally pivoted independently of one another and via hinge-like hinged fittings.
  • a couch has become known in which a backrest and a legrest are arranged in an articulated manner on a fixed intermediate piece.
  • the swiveling movement takes place independently of one another via a lever system with the help of a pendulum-mounted motor.
  • the swiveling movement of the lying surfaces is therefore not synchronized.
  • the relative position of the intermediate piece to the frame of the bed or to the pivoting bed surfaces remains unchanged, which is ergonomically unfavorable.
  • Synchronous movements are also possible with the lever mechanism according to FR-A-1,178,947.
  • At least one main lever with two lever arms is articulated on a plate and connected to the lying surfaces or to additional auxiliary levers via rods.
  • an auxiliary lever is also articulated on the plate and is articulated to one end of the main lever by means of a connecting lever. Further levers are hinged to the auxiliary lever, the ends of which are connected to elements of the bed that are to be moved. The other end of the main lever is also connected to part of the bed by a connecting lever.
  • the lever mechanism is not arranged directly between two elements to be moved, but is firmly connected via the plate to the side parts of the bed belonging to the substructure.
  • the hinge fitting should allow ergonomically favorable pivoting of the lying surfaces, especially in the case of couches. According to the invention, this object is achieved by a joint fitting with the features of claim 1.
  • the joint fitting thus represents an articulated gear with a degree of freedom, the gear being housed in the housing.
  • the gearbox consists of 6 links, namely the two rocker arms, the two couplers, the double rocker arm and the housing as a frame. If movement is initiated on one of the links, this leads to an inevitable synchronous movement of the other links.
  • the expression "housing” obviously does not have to refer to a body which is closed on all sides. It is important to have a common base plate for the different gear links.
  • the two rocker arms are particularly advantageously designed as opposite side walls of the housing, which can be pivoted from a basic position into an inclined position.
  • the rocker arms themselves form part of the housing and lock it in the basic position. If the housing has a rectangular outline and if the two rocker arms designed as side walls form parallel housing outsides in the basic position, the elements to be connected can be aligned in one plane in the basic position.
  • the rocker arms can be articulated either on the same housing side or on opposite housing sides. Depending on where the hinge point is, a counter-rotating or a counter-rotating swivel movement is achieved. Obviously, by changing the distance between individual articulation points, it can also be achieved that the two rocker arms do not perform a uniform but relative movement relative to one another.
  • the pivot angle of one rocker arm changes proportionally more or less with a certain pivoting movement of the opposite rocker arm. This can be particularly advantageous for seating or reclining furniture.
  • each rocker arm has an arcuate section, the center of which is the pivot point of the rocker arm and which extends at the end of the rocker arm against the interior of the housing, the arc length corresponding approximately to the maximum possible pivoting movement.
  • the housing always remains closed even when the rocker arm is pivoted out, so that no dirt can penetrate into the interior of the housing. This also practically eliminates the risk of an object being accidentally caught when swiveling back into the basic position.
  • the joint fitting according to the invention according to claims 1 to 10 is used particularly advantageously in a bed according to claims 11 to 15, since on the one hand it forms a central part between the back part and the leg part and therefore on the other hand enables a uniform or proportional movement of the latter parts to one another.
  • the middle part has the advantage that a mattress or covering lying on the lying surfaces is not curved at an angle, but with a radius. In this way, extreme kinks can be avoided, which is particularly advantageous with multi-layer mattresses. This increases lying comfort considerably.
  • the back part, leg part and middle part can be adjusted in equilibrium with one another in one guided movement. No articulation of the drive device on the frame is required.
  • the drive device thus does not exert any direct tensile or compressive forces on the frame, as a result of which it is considerably relieved.
  • Adjustment device and joint fitting or lying surfaces form an ergonomic unit that is adjustable in itself.
  • the drive device can of course also be a simple, manually operated lever mechanism.
  • a particularly advantageous position of the adjustable lying surfaces relative to the fixed, horizontal frame results when the back part is rotatably attached to the frame about an axis which is arranged at a distance from the hinge fitting, and when the leg part is arranged on the frame so as to be longitudinally displaceable by a support arrangement.
  • the swiveling movement does not take place at the level of the pelvis, but in the cross of the person lying down, the pelvic region being lowered when the back section is swung up.
  • This is particularly advantageous ergonomically and, among other things, also means that the center of gravity of the body, in particular the upper body, does not shift significantly relative to the fixed frame.
  • the lying surfaces can be moved with little effort even without an adjustment device.
  • the hinge fitting consists of a housing 1 with a bottom 6, a cover 7, the two longitudinal side walls 9 and 10 and the two end side walls 8 and 8 '.
  • the side wall 9 is firmly connected to the base 6 and the side wall 10 is firmly connected to the cover 7.
  • the cover 7 rests on a support shoulder 11 and on two fastening tabs 12. Screw holes 19 are provided on the support shoulder and on the fastening tabs, so that the cover with the side wall 10 can be screwed tightly to the other housing parts.
  • the two side walls 8 and 8 ' are designed as rocker arms 3 and 3', which are pivotable about the rocker arm axes 14, 14 '.
  • Fastening means 5 are arranged on both side walls, for example in the form of bolts, in order to connect the side walls to elements 18.
  • Each rocker arm 3 is provided with an arcuate portion 15, 15 'which extends from the side wall against the interior of the housing. This circular arc section is dimensioned such that it can be inserted between the base 6 and the cover 7 with a precise fit, as can be seen from FIG. 2a.
  • the housing end faces are completely closed by the two side walls 8 and 8 ', with the arcuate section 15 providing a closure against the interior of the housing when the side walls 8, 8' are pivoted out.
  • the double rocker arm is connected to the two couplers 4 and 4 ', each with a side wall 8 and 8'.
  • the coupling joint 16, 16 ' is located at the end of the rocker arm 3, 3' and the coupling joint 17 and 17 'is located at one end of the double rocker arm 2.
  • Couplings 4 of different lengths can also be used.
  • Double rocker arms with different lever lengths and with different lever angles or with adjustable lever angles can also be used.
  • each rocker arm 3 or 3 ' which cooperates with a stop 30 on the housing.
  • Figure 4 shows again schematically the arrangement of the transmission members with the fixed on the frame or on the housing 1 Joints. Since the two rocker arm axes 14 are arranged on the same side of the housing, an opposite pivoting movement in the direction of arrow X is achieved from the basic position.
  • the two rocker arm axes 14, 14 ' are arranged on opposite sides of the housing.
  • the two rocker arms 3 and 3 ' perform from the basic position in the same direction pivotal movement in the direction of arrow Y, so that they move parallelogram relative to each other.
  • a lever arm of the double rocker arm 2 is extended beyond the coupling joint 17 to e.g. to be able to attack with a force F. The same extension would also be conceivable in FIG. 4.
  • FIGS. 6 and 7 show a couch 20 in which the joint fitting according to the invention can be used particularly advantageously.
  • the bed consists of an outer frame 23, which rests on four feet 24, for example.
  • the actual lying surface is essentially formed by a back part 21 and a leg part 22.
  • the leg part 22 also has a lower leg part 27 for an angled lower leg bearing.
  • the lower leg part is articulated on the leg part 22 via a simple joint 33.
  • the angling of the lower leg part 27 relative to the leg part 22 is not explained in more detail here. It can either be done manually with the help of a wedge adjuster or also synchronously with the other lying surfaces, in which the lower leg part 22 is connected to another lying surface via a lever mechanism.
  • the individual lying surfaces are frame-like. Slatted frames, steel spring coverings or the like can be arranged in the individual frames, which serve as a support surface for a mattress or for another cover.
  • the back part 21 and the leg part 22 are connected to each other on their long sides via a joint fitting 25 and 25 '.
  • This hinge fitting has, for example, the configuration according to FIG. 1.
  • the two hinge fittings form the side cheeks of a central part 26, which can also be designed as a grate or the like.
  • the middle part 26 is a self-contained frame, with the hinge fittings 25 and 25 'and cross struts 34 and 35. These are preferably made of a rigid material to ensure torsional rigidity of the middle part 26.
  • the back part 21 is fastened to the frame 23 so as to be rotatable about a pivot axis 28.
  • the leg part 22 rests on slide supports 36 on the frame 23, so that it can perform a longitudinal displacement depending on the angular position.
  • rollers can also be used.
  • the attachment is swinging to compensate for changes in direction.
  • the end of the push rod 32 is articulated on the lever 34a of the cross strut 34.
  • the arrangement could also be reversed so that the drive device is attached to the lever 34a.
  • the drive device 29 is actuated, the push rod 32 is moved out or pulled back again.
  • the levers 34a, 35a are pressed apart or contracted, which causes a corresponding pivoting of the cross struts 34, 35 and the joint fittings 25, 25 ', as can be seen from FIG. 6.
  • the back part 21, the middle part 26 and the leg part 22 are in one plane, ie in the lower position indicated by dash-dotted lines. If, on the other hand, the push rod 22 is extended, the levers 34a, 35a are pressed apart, the back part 21 and the leg part 22 are moved upwards at the same or different angles in the opposite direction in the direction of the arrow X. folded until the desired position is reached.
  • the bed can thus be adjusted without a force-locking connection being established between the outer frame 23 and the back part 21 or leg part 22, as is the case with conventional wedge adjusters, which connection must absorb the driving forces when the motor is driven. Rather, the adjustment takes place exclusively via the introduction of force by the drive device 29 within the middle part 26.
  • leg part 22 Since the leg part 22 is supported and runs over slide supports 36, it is even possible to construct a bed which is so balanced in the distribution of the lever and weight ratios that the bed can be easily set up and lowered by hand or by a slight shift of weight without a motorized adjustment mechanism leaves.
  • the relatively wide middle part 26 (resulting from the relatively long joint fittings 25, 25 ') not only favors the ergonomics, but above all also the lowering of the center of gravity. Adjustable counterweights can intervene in the lever system to improve the state of equilibrium.
  • any other arrangement can of course also be used as the drive device 29, e.g. hydraulic or pneumatic drives. It is also conceivable to use two or more drive devices, which then e.g. can directly attack each of the hinge fittings 25, 25 'to bring about direct force application to the side walls 8, 8' (Fig. 1). This could e.g. Let less rigid cross struts 34, 35 be used, which take over the power transmission from the drive device 29 in the embodiment according to FIGS. 6 and 7. It would also be conceivable, especially in the case of wide loungers, to reinforce the middle part 26 in that in the middle, i.e. a further joint fitting is attached in the area of the drive device 29 (FIG. 7).
  • the lying surfaces can be designed as an insert frame which can be inserted into an existing fixed frame 23. Plug-in bolts can be used for movable fixation on the pivot axis 28.
  • FIG. 8 shows an articulated fitting with features similar to those shown in FIG. 1.
  • the double rocker arm 2 has lever arms 38 and 39 of different lengths, so that on the rocker arms 3 and 3 'a non-uniform movement is achieved.
  • the shorter lever arm 39 is hinged to a fork-like arch coupling 37, which in turn is attached to the coupling joint 16 '.
  • the coupling joint 16 ' is arranged approximately in the middle of the circular arc section 15.
  • no pins are provided on the side walls 8, 8 'of the rocker arm as fastening means.
  • U-shaped connecting plates 40 are arranged on the side walls, which can be screwed to the frame sides of the back part or leg part. Support shoulders 11 with threaded holes for attaching the cover are provided on both sides.
  • the invention creates a universally applicable joint fitting and a bed with a joint fitting, which offer significant advantages both in use and in lying / sitting comfort, and are also easy to manufacture and can be designed with adjustment mechanisms on the lying surfaces that work independently of the frame.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Special Chairs (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

The articulation has a housing (1), in which a double rocker lever (2) is mounted in an articulated manner. Two opposite housing sidewalls (8, 8') are constructed as rocker levers (3, 3') and hinged to the housing on both sides of the double rocker lever (2). Each rocker lever is connected by a coupler (4, 4') to one end of the double rocker lever. The articulation is particularly advantageously suitable for beds with multiple bed sections which can be adjusted synchronously by means of the articulation. <IMAGE>

Description

Die Erfindung betrifft einen Gelenkbeschlag für die gelenkige Verbindung von zwei Elementen, insbesondere für Liegen mit mehrteiliger Liegefläche. Gelenkbeschläge werden in der Möbelindustrie häufig eingesetzt, um bewegliche Teile wie Türen, Deckel, Rückenlehnen und dergleichen verschwenkbar zu führen. Solche Gelenkbeschläge können aber auch für andere Zwecke eingesetzt werden, so z.B. an Greifarmen für Roboter usw.The invention relates to an articulated fitting for the articulated connection of two elements, in particular for beds with a multi-part bed surface. Articulated fittings are often used in the furniture industry to pivot movable parts such as doors, lids, backrests and the like. Such joint fittings can also be used for other purposes, e.g. on gripper arms for robots etc.

Bei Sitz- oder Liegemöbeln werden die Liegeflächen normalerweise unabhängig voneinander und über scharnierartig wirkende Gelenkbeschläge verschwenkt. Durch die DE-A-1,529,431 ist eine Liege bekanntgeworden, bei der eine Rückenlehne und eine Beinstütze gelenkig an einem festen Zwischenstück angeordnet sind. Die Schwenkbewegung erfolgt unabhängig voneinander über ein Hebelsystem mit Hilfe je eines pendelnd aufgehängten Motors. Die Schwenkbewegung der Liegeflächen erfolgt somit nicht synchron. Ausserdem bleibt die Relativlage des Zwischenstücks zum Rahmen der Liege bzw. zu den verschwenkbaren Liegeflächen unverändert, was ergonomisch ungünstig ist.In the case of seating or reclining furniture, the reclining surfaces are normally pivoted independently of one another and via hinge-like hinged fittings. From DE-A-1,529,431 a couch has become known in which a backrest and a legrest are arranged in an articulated manner on a fixed intermediate piece. The swiveling movement takes place independently of one another via a lever system with the help of a pendulum-mounted motor. The swiveling movement of the lying surfaces is therefore not synchronized. In addition, the relative position of the intermediate piece to the frame of the bed or to the pivoting bed surfaces remains unchanged, which is ergonomically unfavorable.

Durch die US-A-3,261,639 ist zwar bereits eine Liege bekannt geworden, bei welcher die Bewegung der Rückenlehne und der Beinstütze synchron erfolgt. Der dazu erforderliche Hebelmechanismus ist jedoch in die Armlehnen integriert und ausserdem fest mit dem Unterbau der Liege verbunden. Diese Konstruktion vermag schon aus ästhetischer Sicht nicht zu befriedigen. Sie ist aber auch relativ aufwendig und erlaubt keine Trennung von Liegefläche und Unterbau.From US-A-3,261,639 a couch has already become known, in which the movement of the backrest and the legrest takes place synchronously. However, the lever mechanism required for this is integrated in the armrests and is also firmly connected to the base of the bed. This construction is unsatisfactory from an aesthetic point of view. But it is also relatively complex and does not allow separation of the lying surface and the substructure.

Synchrone Bewegungen sind auch mit dem Hebelmechanismus gemäss FR-A-1,178,947 möglich. Wenigstens ein Haupthebel mit zwei Hebelarmen ist auf einer Platte angelenkt und über Gestänge mit den Liegeflächen bzw. mit weiteren Hilfshebeln verbunden. Gemäss einer Ausführungsform ist ein Hilfshebel ebenfalls auf der Platte angelenkt und mittels eines Verbindungshebels gelenkig mit einem Ende des Haupthebels verbunden. Am Hilfshebel sind weitere Hebel angelenkt, deren Enden mit zu bewegenden Elementen der Liege verbunden sind. Auch das andere Ende des Haupthebels ist über einen Verbindungshebel mit einem Teil der Liege verbunden. In allen Fällen ist der Hebelmechanismus jedoch nicht unmittelbar zwischen zwei zu bewegenden Elementen.angeordnet, sondern über die Platte fest mit den zum Unterbau gehörenden Seitenteilen der Liege verbunden.Synchronous movements are also possible with the lever mechanism according to FR-A-1,178,947. At least one main lever with two lever arms is articulated on a plate and connected to the lying surfaces or to additional auxiliary levers via rods. According to one embodiment, an auxiliary lever is also articulated on the plate and is articulated to one end of the main lever by means of a connecting lever. Further levers are hinged to the auxiliary lever, the ends of which are connected to elements of the bed that are to be moved. The other end of the main lever is also connected to part of the bed by a connecting lever. In all cases, however, the lever mechanism is not arranged directly between two elements to be moved, but is firmly connected via the plate to the side parts of the bed belonging to the substructure.

Es ist daher eine Aufgabe der Erfindung, einen Gelenkbeschlag der eingangs genannten Art zu schaffen, der bei einfacher Konstruktion und kompakter Bauweise eine synchrone Schwenkbewegung der beiden Elemente relativ zum Beschlag ermöglicht. Der Gelenkbeschlag soll insbesondere bei Liegen eine ergonomisch günstige Verschwenkung der Liegeflächen erlauben. Diese Aufgabe wird erfindungsgemäss durch einen Gelenkbeschlag mit den Merkmalen von Anspruch 1 gelöst.It is therefore an object of the invention to provide an articulated fitting of the type mentioned at the outset which, with a simple construction and compact construction, enables a synchronous pivoting movement of the two elements relative to the fitting. The hinge fitting should allow ergonomically favorable pivoting of the lying surfaces, especially in the case of couches. According to the invention, this object is achieved by a joint fitting with the features of claim 1.

Der Gelenkbeschlag stellt somit mechanisch gesehen ein Gelenkgetriebe mit einem Freiheitsgrad dar, wobei das Getriebe im Gehäuse untergebracht ist. Das Getriebe besteht aus 6 Gliedern, nämlich den beiden Schwinghebeln, den beiden Koppeln, dem Doppelschwinghebel und dem Gehäuse als Gestell. Wenn an einem der Glieder eine Bewegung eingeleitet wird, führt dies zu einer zwangsläufigen synchronen Bewegung der übrigen Glieder. Der Ausdruck "Gehäuse" muss sich ersichtlicherweise nicht auf einen allseits geschlossenen Körper beziehen. Wichtig ist eine gemeinsame Grundplatte für die verschiedenen Getriebeglieder.From a mechanical point of view, the joint fitting thus represents an articulated gear with a degree of freedom, the gear being housed in the housing. The gearbox consists of 6 links, namely the two rocker arms, the two couplers, the double rocker arm and the housing as a frame. If movement is initiated on one of the links, this leads to an inevitable synchronous movement of the other links. The expression "housing" obviously does not have to refer to a body which is closed on all sides. It is important to have a common base plate for the different gear links.

Besonders vorteilhaft sind dabei die beiden Schwinghebel als gegenüberliegende Seitenwände des Gehäuses ausgebildet, die aus einer Grundstellung in eine Schräglage verschwenkbar sind. Die Schwinghebel bilden so selbst einen Bestandteil des Gehäuses und schliessen dieses in der Grundstellung ab. Wenn das Gehäuse einen rechteckigen Grundriss aufweist und wenn die beiden als Seitenwände ausgebildeten Schwinghebel in der Grundstellung parallele Gehäuseaussenseiten bilden, können die zu verbindenden Elemente in der Grundstellung in einer Ebene ausgerichtet werden.The two rocker arms are particularly advantageously designed as opposite side walls of the housing, which can be pivoted from a basic position into an inclined position. The rocker arms themselves form part of the housing and lock it in the basic position. If the housing has a rectangular outline and if the two rocker arms designed as side walls form parallel housing outsides in the basic position, the elements to be connected can be aligned in one plane in the basic position.

Die Schwinghebel können entweder auf der gleichen Gehäuseseite oder auf gegenüberliegenden Gehäuseseiten angelenkt sein. Je nach dem wo der Gelenkpunkt liegt, wird eine gegenläufige oder eine gleichläufige Schwenkbewegung erzielt. Ersichtlicherweise kann durch eine Veränderung der Distanz zwischen einzelnen Gelenkpunkten auch erreicht werden, dass die beiden Schwinghebel keine gleichförmige, sondern eine proportionale Bewegung relativ zueinander ausführen. Dabei verändert sich der Schwenkwinkel des einen Schwinghebels proportional mehr oder weniger bei einer bestimmten Schwenkbewegung des gegenüberliegenden Schwinghebels. Dies kann gerade bei Sitz- oder Liegemöbeln vorteilhaft sein.The rocker arms can be articulated either on the same housing side or on opposite housing sides. Depending on where the hinge point is, a counter-rotating or a counter-rotating swivel movement is achieved. Obviously, by changing the distance between individual articulation points, it can also be achieved that the two rocker arms do not perform a uniform but relative movement relative to one another. The pivot angle of one rocker arm changes proportionally more or less with a certain pivoting movement of the opposite rocker arm. This can be particularly advantageous for seating or reclining furniture.

Weitere Vorteile können erzielt werden, wenn jeder Schwinghebel einen kreisbogenförmigen Abschnitt aufweist, dessen Mittelpunkt der Drehpunkt des Schwinghebels ist und der sich am Ende des Schwinghebels gegen das Gehäuseinnere erstreckt, wobei die Bogenlänge etwa der maximal möglichen Schwenkbewegung entspricht. Auf diese Weise bleibt das Gehäuse auch bei ausgeschwenktem Schwinghebel durch den kreisbogenförmigen Abschnitt immer geschlossen, so dass kein Schmutz ins Gehäuseinnere eindringen kann. Auch die Gefahr, dass ein Gegenstand beim Zurückschwenken in die Grundstellung versehentlich eingeklemmt wird, kann dadurch praktisch beseitigt werden.Further advantages can be achieved if each rocker arm has an arcuate section, the center of which is the pivot point of the rocker arm and which extends at the end of the rocker arm against the interior of the housing, the arc length corresponding approximately to the maximum possible pivoting movement. In this way, the housing always remains closed even when the rocker arm is pivoted out, so that no dirt can penetrate into the interior of the housing. This also practically eliminates the risk of an object being accidentally caught when swiveling back into the basic position.

Der erfindungsgemässe Gelenkbeschlag nach den Ansprüchen 1 bis 10 wird besonders vorteilhaft bei einer Liege gemäß den Ansprüchen 11 bis 15 eingesetzt, da er einerseits ein Mittelteil zwischen dem Rückenteil und dem Beinteil bildet und daher anderseits eine gleichförmige oder proportionale Bewegung der letztern Teile zueinander ermöglicht. Das Mittelteil hat den Vorteil, dass eine auf den Liegeflächen aufliegende Matratze oder Bespannung nicht winkelartig, sondern mit einem Radius gekrümmt wird. Auf diese Weise können extreme Knickstellen vermieden werden, was gerade bei mehrschichtigen Matratzen besonders vorteilhaft ist. Dies erhöht den Liegekomfort ganz erheblich. Mit einer einzigen Antriebsvorrichtung, die an beiden Seiten des Gelenkbeschlags direkt oder indirekt angreift, können Rückenteil, Beinteil und Mittelteil im Gleichgewicht zueinander in einer geführten Bewegung verstellt werden. Dabei ist keine Anlenkung der Antriebsvorrichtung am Rahmen erforderlich. Die Antriebsvorrichtung übt somit keine unmittelbare Zug- oder Druckkräfte auf den Rahmen aus, wodurch er erheblich entlastet wird. Verstellvorrichtung und Gelenkbeschlag bzw. Liegeflächen bilden eine in sich selbst verstellbare, ergonomische Einheit. Die Antriebsvorrichtung kann selbstverständlich auch ein einfacher, von Hand zu betätigender Hebelmechanismus sein.The joint fitting according to the invention according to claims 1 to 10 is used particularly advantageously in a bed according to claims 11 to 15, since on the one hand it forms a central part between the back part and the leg part and therefore on the other hand enables a uniform or proportional movement of the latter parts to one another. The middle part has the advantage that a mattress or covering lying on the lying surfaces is not curved at an angle, but with a radius. In this way, extreme kinks can be avoided, which is particularly advantageous with multi-layer mattresses. This increases lying comfort considerably. With a single drive device, which acts directly or indirectly on both sides of the joint fitting, the back part, leg part and middle part can be adjusted in equilibrium with one another in one guided movement. No articulation of the drive device on the frame is required. The drive device thus does not exert any direct tensile or compressive forces on the frame, as a result of which it is considerably relieved. Adjustment device and joint fitting or lying surfaces form an ergonomic unit that is adjustable in itself. The drive device can of course also be a simple, manually operated lever mechanism.

Eine besonders vorteilhafte Position der verstellbaren Liegeflächen relativ zum feststehenden, horizontalen Rahmen ergibt sich, wenn das Rückenteil um eine Achse drehbar am Rahmen befestigt ist, welche im Abstand zum Gelenkbeschlag angeordnet ist, und wenn das Beinteil durch eine Stützanordnung am Rahmen längsverschiebbar angeordnet ist. Die Schwenkbewegung erfolgt somit nicht auf der Höhe des Beckens, sondern im Kreuz des Liegenden, wobei sich die Beckenregion beim Hochschwenken des Rückenteils absenkt. Dies ist ergonomisch besonders vorteilhaft und führt unter anderem auch dazu, dass sich der Schwerpunkt des Körpers, insbesondere des Oberkörpers relativ zum festen Rahmen nicht wesentlich verschiebt. Die Liegeflächen können dabei auch ohne Verstellvorrichtung mit geringer Kraftaufwendung verlagert werden.A particularly advantageous position of the adjustable lying surfaces relative to the fixed, horizontal frame results when the back part is rotatably attached to the frame about an axis which is arranged at a distance from the hinge fitting, and when the leg part is arranged on the frame so as to be longitudinally displaceable by a support arrangement. The swiveling movement does not take place at the level of the pelvis, but in the cross of the person lying down, the pelvic region being lowered when the back section is swung up. This is particularly advantageous ergonomically and, among other things, also means that the center of gravity of the body, in particular the upper body, does not shift significantly relative to the fixed frame. The lying surfaces can be moved with little effort even without an adjustment device.

Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden nachstehend genauer beschrieben. Es zeigen:

  • Figur 1 Eine Draufsicht auf einen Gelenkbeschlag in Grundstellung mit abgehobenem Deckel,
  • Figur 2 eine Draufsicht auf den Gelenkbeschlag gemäss Figur 1 mit ausgeschwenkten Schwinghebeln,
  • Figur 2a eine Teilansicht auf den Gelenkbeschlag gemäss
  • Figur 2 in Pfeilrichtung B,
  • Figur 3 einen Schnitt durch die Ebene A-A gemäss Figur 1,
  • Figur 4 eine schematische Darstellung der Getriebefunktion des Gelenkbeschlags gemäss Figur 1,
  • Figur 5 die schematische Darstellung der Getriebefunktion eines abgewandelten Ausführungsbeispiels,
  • Figur 6 die Seitenansicht einer Liege,
  • Figur 7 eine Draufsicht auf die Liege gemäss Figur 6 und
  • Figur 8 eine Draufsicht auf eine alternative Ausführungsform eines Gelenkbeschlages.
Embodiments of the invention are shown in the drawings and are described in more detail below. Show it:
  • FIG. 1 shows a top view of a hinge fitting in the basic position with the cover removed,
  • FIG. 2 shows a top view of the joint fitting according to FIG. 1 with the rocker arms pivoted out,
  • Figure 2a is a partial view of the hinge fitting according to
  • FIG. 2 in the direction of arrow B,
  • FIG. 3 shows a section through the plane AA according to FIG. 1,
  • FIG. 4 shows a schematic illustration of the gear function of the joint fitting according to FIG. 1,
  • FIG. 5 shows the schematic representation of the gear function of a modified exemplary embodiment,
  • FIG. 6 shows the side view of a couch,
  • Figure 7 is a plan view of the couch according to Figure 6 and
  • Figure 8 is a plan view of an alternative embodiment of a hinge fitting.

Wie aus den Figuren 1 und 3 ersichtlich ist, besteht der Gelenkbeschlag aus einem Gehäuse 1 mit einem Boden 6, einem Deckel 7, den beiden längsseitigen Seitenwände 9 und 10 und den beiden stirnseitigen Seitenwänden 8 und 8′. Die Seitenwand 9 ist beim vorliegenden Ausführungsbeispiel fest mit dem Boden 6 und die Seitenwand 10 fest mit dem Deckel 7 verbunden. Der Deckel 7 liegt dabei auf einer Stützschulter 11 und auf zwei Befestigungslaschen 12 auf. An der Stützschulter und an den Befestigungslaschen sind Schraubenlöcher 19 angebracht, so dass der Deckel mit der Seitenwand 10 fest mit den übrigen Gehäuseteilen verschraubt werden kann.As can be seen from Figures 1 and 3, the hinge fitting consists of a housing 1 with a bottom 6, a cover 7, the two longitudinal side walls 9 and 10 and the two end side walls 8 and 8 '. In the present exemplary embodiment, the side wall 9 is firmly connected to the base 6 and the side wall 10 is firmly connected to the cover 7. The cover 7 rests on a support shoulder 11 and on two fastening tabs 12. Screw holes 19 are provided on the support shoulder and on the fastening tabs, so that the cover with the side wall 10 can be screwed tightly to the other housing parts.

Die beiden Seitenwände 8 und 8′ sind als Schwinghebel 3 und 3′ ausgebildet, die um die Schwinghebelachsen 14, 14′ verschwenkbar sind. An beiden Seitenwänden sind Befestigungsmittel 5 beispielsweise in der Form von Bolzen angeordnet, um die Seitenwände mit Elementen 18 zu verbinden. Jeder Schwinghebel 3 ist mit einem kreisbogenförmigen Abschnitt 15, 15′ versehen, der sich von der Seitenwand her gegen das Gehäuseinnere erstreckt. Dieser Kreisbogenabschnitt ist so dimensioniert, dass er sich passgenau zwischen den Boden 6 und den Deckel 7 einschieben lässt, wie aus Figur 2a ersichtlich ist. In der Grundstellung werden so die Gehäusestirnseiten durch die beiden Seitenwände 8 und 8′ vollständig abgeschlossen, wobei bei ausgeschwenkten Seitenwänden 8, 8′ der Kreisbogenabschnitt 15 für einen Abschluss gegen das Gehäuseinnere sorgt.The two side walls 8 and 8 'are designed as rocker arms 3 and 3', which are pivotable about the rocker arm axes 14, 14 '. Fastening means 5 are arranged on both side walls, for example in the form of bolts, in order to connect the side walls to elements 18. Each rocker arm 3 is provided with an arcuate portion 15, 15 'which extends from the side wall against the interior of the housing. This circular arc section is dimensioned such that it can be inserted between the base 6 and the cover 7 with a precise fit, as can be seen from FIG. 2a. In the basic position, the housing end faces are completely closed by the two side walls 8 and 8 ', with the arcuate section 15 providing a closure against the interior of the housing when the side walls 8, 8' are pivoted out.

Etwa in der Mitte des Bodens 6 ist eine Mittelachse 13 befestigt, an der ein Doppelschwinghebel 2 drehbar gelagert ist. Der Doppelschwinghebel ist mit den beiden Koppeln 4 bzw. 4′ mit je einer Seitenwand 8 bzw. 8′ verbunden. Das Koppelgelenk 16, 16′ befindet sich am Ende des Schwinghebels 3, 3′ und das Koppelgelenk 17 bzw. 17′ befindet sich an je einem Ende des Doppelschwinghebels 2. In bestimmten Fällen ist es zweckmässig, verschiedene Anlenkpunkte für die Koppelgelenke 16 vorzusehen, so dass auf diese Weise unterschiedliche Auslenkwinkel erzielt werden können. Es können dabei auch unterschiedlich lange Koppeln 4 eingesetzt werden. Es können auch Doppelschwinghebel mit unterschiedlicher Hebellänge und mit unterschiedlichem Hebelwinkel bzw. mit einstellbarem Hebelwinkel eingesetzt werden.A central axis 13, on which a double rocker arm 2 is rotatably mounted, is fastened approximately in the middle of the base 6. The double rocker arm is connected to the two couplers 4 and 4 ', each with a side wall 8 and 8'. The coupling joint 16, 16 'is located at the end of the rocker arm 3, 3' and the coupling joint 17 and 17 'is located at one end of the double rocker arm 2. In certain cases, it is advisable to provide different articulation points for the coupling joints 16, so that different deflection angles can be achieved in this way. Couplings 4 of different lengths can also be used. Double rocker arms with different lever lengths and with different lever angles or with adjustable lever angles can also be used.

Beim Betätigen eines der Getriebeglieder, insbesondere eines Schwinghebels 3 führen die anderen Getriebeglieder und insbesondere der gegenüberliegende Schwinghebel 3′ eine synchrone Bewegung aus. Je nach Verwendungszweck des Gelenkbeschlages wäre es denkbar, die Bewegung an einer der Koppeln oder am Doppelschwinghebel, beispielsweise über die Mittelachse 13 einzuleiten. Ein Hebelarm des Doppelschwinghebels könnte auch durch das Gehäuse hindurch verlängert sein, um daran eine Kraft angreifen zu lassen. Bei der Darstellung gemäss Figur 2 sind die beiden Schwinghebel bzw. Seitenwände 8, 8′ etwa zur Hälfte des maximal möglichen Weges ausgeschwenkt. Je nach Anwendungsfall kann dieser Weg durch Veränderung der Getriebeglieder vergrössert oder verkleinert werden. Es wäre selbstverständlich auch denkbar, dass die beiden Seitenwände 8 und 8′ bereits in der Grundstellung eine Schräglage haben. Zur Begrenzung der Schwenkbewegung ist an jedem Schwinghebel 3 bzw. 3′ eine Nase 31 vorgesehen, die mit einem Anschlag 30 am Gehäuse zusammenwirkt.When one of the gear members, in particular a rocker arm 3 is actuated, the other gear members and in particular the opposite rocker arm 3 'perform a synchronous movement. Depending on the intended use of the hinge fitting, it would be conceivable to initiate the movement on one of the couplings or on the double rocker arm, for example via the central axis 13. A lever arm of the double rocker arm could also be extended through the housing to allow a force to act on it. In the illustration according to Figure 2, the two rocker arms or side walls 8, 8 'are pivoted out about half of the maximum possible path. Depending on the application, this route can be enlarged or reduced by changing the gear links. It would of course also be conceivable that the two side walls 8 and 8 'already have an inclined position in the basic position. To limit the pivoting movement a nose 31 is provided on each rocker arm 3 or 3 ', which cooperates with a stop 30 on the housing.

Figur 4 zeigt nochmals schematisch die Anordnung der Getriebeglieder mit den fest am Gestell bzw. am Gehäuse 1 angeordneten Gelenken. Da die beiden Schwinghebelachsen 14 auf der gleichen Gehäuseseite angeordnet sind, wird aus der Grundstellung eine gegensinnige Schwenkbewegung in Pfeilrichtung X erreicht.Figure 4 shows again schematically the arrangement of the transmission members with the fixed on the frame or on the housing 1 Joints. Since the two rocker arm axes 14 are arranged on the same side of the housing, an opposite pivoting movement in the direction of arrow X is achieved from the basic position.

Bei der schematischen Darstellung gemäss Figur 5 sind die beiden Schwinghebelachsen 14, 14′ auf gegenüberliegenden Gehäuseseiten angeordnet. Die beiden Schwinghebel 3 und 3′ führen dabei aus der Grundstellung eine gleichsinnige Schwenkbewegung in Pfeilrichtung Y aus, so dass sie sich relativ zueinander parallelogrammartig bewegen. Ein Hebelarm des Doppelschwinghebels 2 ist über das Koppelgelenk 17 hinaus verlängert, um z.B. mit einer Kraft F angreifen zu können. Die gleiche Verlängerung wäre auch bei Figur 4 denkbar.In the schematic representation according to Figure 5, the two rocker arm axes 14, 14 'are arranged on opposite sides of the housing. The two rocker arms 3 and 3 'perform from the basic position in the same direction pivotal movement in the direction of arrow Y, so that they move parallelogram relative to each other. A lever arm of the double rocker arm 2 is extended beyond the coupling joint 17 to e.g. to be able to attack with a force F. The same extension would also be conceivable in FIG. 4.

Die Figuren 6 und 7 zeigen eine Liege 20, bei der der erfindungsgemässe Gelenkbeschlag besonders vorteilhaft verwendet werden kann. Die Liege besteht aus einem äusseren Rahmen 23, der beispielsweise auf vier Füssen 24 aufliegt. Die eigentliche Liegefläche wird im wesentlichen durch ein Rückenteil 21 und ein Beinteil 22 gebildet. Das Beinteil 22 weist noch ein unteres Beinteil 27 für eine abgewinkelte Unterschenkellagerung auf. Das untere Beinteil ist über ein einfaches Gelenk 33 am Beinteil 22 angelenkt. Die Abwinklung des unteren Beinteils 27 relativ zum Beinteil 22 wird hier nicht näher erläutert. Sie kann entweder manuell mit Hilfe eines Keilstellers oder ebenfalls synchron mit den übrigen Liegeflächen erfolgen, in dem das untere Beinteil 22 über einen Hebelmechanismus mit einer anderen Liegefläche verbunden ist.FIGS. 6 and 7 show a couch 20 in which the joint fitting according to the invention can be used particularly advantageously. The bed consists of an outer frame 23, which rests on four feet 24, for example. The actual lying surface is essentially formed by a back part 21 and a leg part 22. The leg part 22 also has a lower leg part 27 for an angled lower leg bearing. The lower leg part is articulated on the leg part 22 via a simple joint 33. The angling of the lower leg part 27 relative to the leg part 22 is not explained in more detail here. It can either be done manually with the help of a wedge adjuster or also synchronously with the other lying surfaces, in which the lower leg part 22 is connected to another lying surface via a lever mechanism.

Die einzelnen Liegeflächen sind rahmenartig ausgebildet. In den einzelnen Rahmen können Lattenroste, Stahlfederbespannungen oder dergleichen angeordnet sein, die als Auflagefläche für eine Matratze oder für eine andere Bespannung dienen. Das Rückenteil 21 und das Beinteil 22 sind an ihren Längsseiten über je einen Gelenkbeschlag 25 und 25′ miteinander verbunden. Dieser Gelenkbeschlag hat beispielsweise die Konfiguration gemäss Figur 1. Die beiden Gelenkbeschläge bilden die Seitenwangen eines Mittelteils 26, das ebenfalls als Rost oder dergleichen ausgebildet sein kann. Das Mittelteil 26 ist ein in sich geschlossener Rahmen, mit den Gelenkbeschlägen 25 und 25′ sowie Querstreben 34 und 35. Diese sind vorzugsweise aus einem biegesteifen Material hergestellt, um Verwindungssteifigkeit des Mittelteils 26 zu gewährleisten.The individual lying surfaces are frame-like. Slatted frames, steel spring coverings or the like can be arranged in the individual frames, which serve as a support surface for a mattress or for another cover. The back part 21 and the leg part 22 are connected to each other on their long sides via a joint fitting 25 and 25 '. This hinge fitting has, for example, the configuration according to FIG. 1. The two hinge fittings form the side cheeks of a central part 26, which can also be designed as a grate or the like. The middle part 26 is a self-contained frame, with the hinge fittings 25 and 25 'and cross struts 34 and 35. These are preferably made of a rigid material to ensure torsional rigidity of the middle part 26.

Das Rückenteil 21 ist um eine Schwenkachse 28 drehbar am Rahmen 23 befestigt. Das Beinteil 22 liegt auf Gleitstützen 36 am Rahmen 23 auf, so dass es je nach Winkelstellung eine Längsverschiebung ausführen kann. Anstelle der Gleitstützen können auch Rollen verwendet werden.The back part 21 is fastened to the frame 23 so as to be rotatable about a pivot axis 28. The leg part 22 rests on slide supports 36 on the frame 23, so that it can perform a longitudinal displacement depending on the angular position. Instead of the slide supports, rollers can also be used.

Eine Antriebseinrichtung 29, beispielsweise ein Elektromotor mit einer linear verschiebbaren Schubstange 32, ist mit einem Hebel 35a unmittelbar an der Querstrebe 35 des Mittelteils 26 befestigt. Die Befestigung erfolgt dabei pendelnd, um Richtungsänderungen auszugleichen. Das Ende der Schubstange 32 ist gelenkig am Hebel 34a der Querstrebe 34 befestigt. Selbstverständlich könnte die Anordnung auch umgedreht werden, so dass die Antriebsvorrichtung am Hebel 34a befestigt ist. Bei Betätigung der Antriebsvorrichtung 29 wird die Schubstange 32 herausgefahren oder wieder zurückgezogen. Dabei werden die Hebel 34a, 35a auseinander gedrückt oder zusammengezogen, was ein entsprechendes Verschwenken der Querstreben 34, 35 und der Gelenkbeschläge 25, 25′ bewirkt, wie aus Figur 6 ersichtlich ist. Im total eingefahrenen Zustand der Schubstange 32 befinden sich Rückenteil 21, Mittelteil 26 und Beinteil 22 in einer Ebene, d.h. in der strichpunktiert angedeuteten Absenklage. Wird dagegen die Schubstange 22 ausgefahren, werden die Hebel 34a, 35a auseinander gedrückt, das Rückenteil 21 und das Beinteil 22 werden unter jeweils gleichem oder unterschiedlichem Winkel in einer gegensinnigen Bewegung in Pfeilrichtung X nach oben geklappt, bis die gewünschte Position erreicht ist. Das Verstellen der Liege kann also erfolgen, ohne dass wie bei herkömmlichen Keilstellern zwischen äusserem Rahmen 23 und Rückenteil 21 oder Beinteil 22 eine kraftschlüssige Verbindung hergestellt wird, welche bei motorischem Antrieb die Antriebskräfte aufnehmen muss. Vielmehr erfolgt die Verstellung ausschliesslich über Krafteinleitung durch die Antriebsvorrichtung 29 innerhalb des Mittelteils 26. Dies ermöglicht stark vereinfachte Bauweise des Rahmens 23 und vermindert vor allem auch Wartungs- und Verschleissprobleme durch Kraftübertragung zwischen dem Rahmen 23 und dem Kopfteil 21, wie es bei konventionellen Liegen erforderlich ist. Die zweifache Abwinkelung der Gelenkbeschläge 25, 25′ gewährleistet einerseits ergonomische Sitz- und Liegelage und reduziert andererseits die für die Verstellung erforderlichen Antriebskräfte. Dies wird durch die Tieferlegung des Körperschwerpunktes, d.h. durch die Vergrösserung des Abstands zwischen der Schwenkachse 28 und dem Drehpunkt des Gelenkbeschlages erreicht. (Aus Figur 6 ist ersichtlich, dass der rechte Drehpunkt 14′ relativ grossen Abstand zur Schwenkachse 28 aufweist; dies führt infolge der Kraftübertragung über die Gelenkbeschläge 25 und 25′ zu einer Verlängerung des Hebelarms unterhalb der Schwenkachse 28 und somit zu ausgeglicheneren Gewichts- und Kraftverhältnissen im beweglichen System.)A drive device 29, for example an electric motor with a linearly displaceable push rod 32, is attached directly to the cross strut 35 of the central part 26 with a lever 35a. The attachment is swinging to compensate for changes in direction. The end of the push rod 32 is articulated on the lever 34a of the cross strut 34. Of course, the arrangement could also be reversed so that the drive device is attached to the lever 34a. When the drive device 29 is actuated, the push rod 32 is moved out or pulled back again. The levers 34a, 35a are pressed apart or contracted, which causes a corresponding pivoting of the cross struts 34, 35 and the joint fittings 25, 25 ', as can be seen from FIG. 6. In the completely retracted state of the push rod 32, the back part 21, the middle part 26 and the leg part 22 are in one plane, ie in the lower position indicated by dash-dotted lines. If, on the other hand, the push rod 22 is extended, the levers 34a, 35a are pressed apart, the back part 21 and the leg part 22 are moved upwards at the same or different angles in the opposite direction in the direction of the arrow X. folded until the desired position is reached. The bed can thus be adjusted without a force-locking connection being established between the outer frame 23 and the back part 21 or leg part 22, as is the case with conventional wedge adjusters, which connection must absorb the driving forces when the motor is driven. Rather, the adjustment takes place exclusively via the introduction of force by the drive device 29 within the middle part 26. This enables a greatly simplified construction of the frame 23 and, above all, also reduces maintenance and wear problems due to power transmission between the frame 23 and the head part 21, as is required with conventional couches is. The double bending of the joint fittings 25, 25 'ensures ergonomic sitting and lying positions on the one hand and reduces the driving forces required for the adjustment on the other hand. This is achieved by lowering the body's center of gravity, ie by increasing the distance between the pivot axis 28 and the pivot point of the joint fitting. (From Figure 6 it can be seen that the right pivot point 14 'has a relatively large distance from the pivot axis 28; this leads to an extension of the lever arm below the pivot axis 28 as a result of the force transmission via the joint fittings 25 and 25' and thus to more balanced weight and force ratios in the mobile system.)

Da das Beinteil 22 über Gleitstützen 36 abgestützt ist und abläuft, lässt sich sogar eine Liege konstruieren, die derart ausgeglichen in der Verteilung der Hebel- und Gewichtsverhältnisse ist, dass sich die Liege ohne motorischen Verstellmechanismus von Hand bzw. durch leichte Gewichtsverlagerung einfach aufstellen und absenken lässt. Das relativ breite Mittelteil 26 (resultierend aus den relativ langen Gelenkbeschlägen 25, 25′) begünstigt dabei nicht nur die Ergonomie, sondern vor allem auch die Tieferlegung des Schwerpunkts. Zur Verbesserung des Gleichgewichtszustands können verstellbare Gegengewichte in das Hebelsystem eingreifen.Since the leg part 22 is supported and runs over slide supports 36, it is even possible to construct a bed which is so balanced in the distribution of the lever and weight ratios that the bed can be easily set up and lowered by hand or by a slight shift of weight without a motorized adjustment mechanism leaves. The relatively wide middle part 26 (resulting from the relatively long joint fittings 25, 25 ') not only favors the ergonomics, but above all also the lowering of the center of gravity. Adjustable counterweights can intervene in the lever system to improve the state of equilibrium.

Als Antriebsvorrichtung 29 lässt sich selbstverständlich auch eine beliebige andere Anordnung einsetzen, wie z.B. hydraulische oder pneumatische Antriebe. Auch ist es denkbar, zwei oder mehrere Antriebsvorrichtungen zu verwenden, die dann z.B. direkt an jedem der Gelenkbeschläge 25, 25′ angreifen können, um direkte Krafteinleitung auf die Seitenwände 8, 8′ (Fig. 1) zu bewirken. Dadurch könnten sich z.B. weniger steife Querstreben 34, 35 verwenden lassen, welche beim Ausführungsbeispiel gemäss Figuren 6 und 7 die Kraftübertragung von der Antriebsvorrichtung 29 übernehmen. Auch wäre es denkbar, vor allem bei breiten Liegen, das Mittelteil 26 dadurch zu verstärken, dass in der Mitte, d.h. im Bereich der Antriebsvorrichtung 29 (Fig. 7) noch ein weiterer Gelenkbeschlag angebracht wird.Any other arrangement can of course also be used as the drive device 29, e.g. hydraulic or pneumatic drives. It is also conceivable to use two or more drive devices, which then e.g. can directly attack each of the hinge fittings 25, 25 'to bring about direct force application to the side walls 8, 8' (Fig. 1). This could e.g. Let less rigid cross struts 34, 35 be used, which take over the power transmission from the drive device 29 in the embodiment according to FIGS. 6 and 7. It would also be conceivable, especially in the case of wide loungers, to reinforce the middle part 26 in that in the middle, i.e. a further joint fitting is attached in the area of the drive device 29 (FIG. 7).

Ein weiterer Vorteil der erfindungsgemässen Anordnung liegt darin, dass die Liegeflächen als Einlegerahmen beschaffen sein können, der in einen bestehenden festen Rahmen 23 eingelegt werden kann. Zur beweglichen Fixierung an der Schwenkachse 28 können steckbare Bolzen eingesetzt werden.Another advantage of the arrangement according to the invention is that the lying surfaces can be designed as an insert frame which can be inserted into an existing fixed frame 23. Plug-in bolts can be used for movable fixation on the pivot axis 28.

Beim Ausführungsbeispiel gemäss Figur 6 ist gleichzeitiges Anheben des Rückenteils 21 und des Beinteils 22 gezeigt. Sofern der erfindungsgemässe Gelenkbeschlag z.B. für einen Liegestuhl vorgesehen werden soll, bei welchem das Anheben des Rückenteils mit einem Absenken des Fussteils einhergeht, um Sitzposition zu erreichen, kann z.B. ein gegenläufiger Gelenkbeschlag verwendet werden, wie er in Figur 5 schematisch dargestellt ist. Dabei ist es z.B. auch denkbar, durch Verbreiterung des Mittelteils 26 eine Sitzfläche zu bilden.In the exemplary embodiment according to FIG. 6, simultaneous lifting of the back part 21 and the leg part 22 is shown. If the joint fitting according to the invention e.g. should be provided for a deck chair in which the lifting of the back part is accompanied by a lowering of the foot part in order to reach the sitting position, e.g. an opposing hinge fitting can be used, as shown schematically in Figure 5. It is e.g. also conceivable to form a seat by widening the central part 26.

In Figur 8 ist ein Gelenkbeschlag mit ähnlichen Merkmalen wie gemäss Figur 1 dargestellt. Der Doppelschwinghebel 2 hat jedoch Hebelarme 38 und 39 von unterschiedlicher Länge, so dass an den Schwinghebeln 3 und 3′ eine ungleichförmige Bewegung erzielt wird. Der kürzere Hebelarm 39 ist an eine gabelartige Bogenkoppel 37 angelenkt, die ihrerseits am Koppelgelenk 16′ befestigt ist. Das Koppelgelenk 16′ ist hier etwa in der Mitte des Kreisbogenabschnittes 15 angeordnet. Im Gegensatz zu Figur 1 sind als Befestigungsmittel keine Zapfen an den Seitenwänden 8, 8′ der Schwinghebel vorgesehen. Vielmehr sind an den Seitenwänden z.B. U-förmige Verbindungsplatten 40 angeordnet, die mit den Rahmenseiten des Rückenteils bzw. Beinteils verschraubt werden können. Stützschultern 11 mit Gewindelöchern zum Befestigen des Deckels sind auf beiden Seiten vorgesehen.FIG. 8 shows an articulated fitting with features similar to those shown in FIG. 1. The double rocker arm 2, however, has lever arms 38 and 39 of different lengths, so that on the rocker arms 3 and 3 'a non-uniform movement is achieved. The shorter lever arm 39 is hinged to a fork-like arch coupling 37, which in turn is attached to the coupling joint 16 '. The coupling joint 16 'is arranged approximately in the middle of the circular arc section 15. In contrast to Figure 1, no pins are provided on the side walls 8, 8 'of the rocker arm as fastening means. Rather, U-shaped connecting plates 40 are arranged on the side walls, which can be screwed to the frame sides of the back part or leg part. Support shoulders 11 with threaded holes for attaching the cover are provided on both sides.

Insgesamt schafft die Erfindung einen universell anwendbaren Gelenkbeschlag sowie eine Liege mit einem Gelenkbeschlag, die sowohl in der Anwendung und im Liege-/Sitzkomfort wesentliche Vorteile bieten, als auch einfach herstellbar und mit unabhängig vom Rahmen arbeitenden Verstellmechanismen an den Liegeflächen ausbildbar sind.Overall, the invention creates a universally applicable joint fitting and a bed with a joint fitting, which offer significant advantages both in use and in lying / sitting comfort, and are also easy to manufacture and can be designed with adjustment mechanisms on the lying surfaces that work independently of the frame.

Claims (15)

1. Linkage fitting for the articulated connection of two elements (18), in particular for reclining, with a multiple part reclining surface, with which a double oscillating lever (2) and on each side of the double oscillating lever one oscillating arm (3, 3′) is coupled on a common base plate (6), the ends of the oscillating arms, each with a connecting rod (4, 4′), being connected to articulate with one end of the double oscillating lever (2), and the base plate (6) being a component part of a housing (1) for the different gear members, and a means of fastening (5) being arranged on the oscillating arms (3, 3′) for fastening of the elements.
2. Linkage fitting according to claim 1, characterized in that both the oscillating arms (3, 3′) are formed as opposing side walls (8, 8′) of the housing (1) which are able to be pivoted out of a basic position (Figure 1) into an inclined position (Figure 2).
3. Linkage fitting according to claim 2, characterized in that the housing (1) possesses a rectangular layout and that both the oscillating arms (3, 3'), which are formed as side walls (8, 8′), form parallel outer sides of the housing in the basic position.
4. Linkage fitting according to one of the claims 1 to 3, characterized in that the oscillating arms (3, 3′) are coupled on the same side of the housing (9) in relation to the link axis of the double oscillating lever.
5. Linkage fitting according one of to the claims 1 to 3, characterized in that the oscillating arms (3, 3′) are coupled on diametrically opposed sides of the housing (9, 10) in relation to the link axis of the double oscillating lever.
6. Linkage fitting according to one of the claims 2 to 5, characterized in that each oscillating arm (3, 3′) possesses a segment formed as the arc of a circle (15, 15′) whose middle point is the point of rotation (14) of the oscillating arm and which extends, on the end of the oscillating arm, towards the inside of the housing, the length of the arc corresponding approximately to the maximum possible pivoting movement.
7. Linkage fitting according to claim 6, characterized in that each connecting rod (4, 4′) is linked to the end of the segment formed as the arc of a circle (15, 15′) which is oriented towards the inside of the housing.
8. Linkage fitting according to one of the claims 1 to 7, characterized in that the housing (1) possesses a removable cover (7) which extends parallel to the plane of movement of the linkage members.
9. Linkage fitting according to one of the claims 1 to 8, characterized in that the means of fastening (5) is bolts.
10. Linkage fitting according to one of the claims 1 to 8, characterized in that the means of fastening (5) is connecting plates (40).
11. Couch (20) with at least one linkage fitting according to one of the claims 1 to 10 and with a multiple part reclining surface, comprising at least one back support part (21) and one leg support part (22) which are fastened to a frame (23) to be able to pivot in relation to one another, characterized in that the back support part (21) is fastened to one oscillating arm and the leg support part (22) is fastened to the other oscillating arm.
12. Couch according to claim 11, characterized in that at least two linkage fittings (25, 25′) are formed as side cheeks and are connected by transverse struts (34, 35) to a frame (centre part 26), the transverse struts engaging directly or indirectly in the oscillating arms (3, 3′) and being able to be pivoted, together with the oscillating arms, relative to the housing (1) of the linkage fittings, and that the back support part (21) and the leg support part (22) are mounted on the transverse struts and/or on the linkage fittings (25, 25′).
13. Couch according to claims 11 or 12, characterized in that the reclining surfaces (21, 22, 26) are able to be adjusted by means of a drive device (29) which takes effect directly or indirectly between the oscillating arms (3, 3′).
14. Couch according to claims 12 and 13, characterized in that the drive device (29) is an electric motor which is mounted in a pendulum fashion on one transverse strut (34 or 35) and which possesses a linearly adjustable push rod (32), the end of which is connected to articulate with the neighbouring transverse strut in order to pivot the oscillating arms outwards or inwards.
15. Couch according to one of the claims 11 to 14, characterized in that the back support part (21) is fastened to the frame (23) to be able to rotate about an axis (28) which is arranged at a distance from the linkage fitting (25, 25′), and that the leg support part (22) is mounted on the frame by a mounting arrangement (36) to be longitudinally displaceable.
EP88810724A 1987-11-04 1988-10-24 Articulation for a bed with multiple bed sections Expired - Lifetime EP0315588B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810724T ATE77218T1 (en) 1987-11-04 1988-10-24 JOINT FITTING, PARTICULARLY FOR LOUNGERS WITH MULTI-PART LYING SURFACE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4300/87 1987-11-04
CH430087 1987-11-04

Publications (2)

Publication Number Publication Date
EP0315588A1 EP0315588A1 (en) 1989-05-10
EP0315588B1 true EP0315588B1 (en) 1992-06-17

Family

ID=4273519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810724A Expired - Lifetime EP0315588B1 (en) 1987-11-04 1988-10-24 Articulation for a bed with multiple bed sections

Country Status (3)

Country Link
EP (1) EP0315588B1 (en)
AT (1) ATE77218T1 (en)
DE (1) DE3872168D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT222274Z2 (en) * 1990-12-17 1995-02-06 M D F Di Cipelli Sergio & C Sa STRUCTURE FOR BED AND MOTORIZED BED NET.
FR2714805B1 (en) * 1994-01-12 1996-03-29 Dievart Rene Charles Bed base with adjustable longitudinal profile.
EP1161907A1 (en) 2000-06-09 2001-12-12 Schätti AG Actuating device of a pivoting section for sitting and/or lying furniture
DE20211071U1 (en) 2002-07-22 2003-12-11 Dewert Antriebs- Und Systemtechnik Gmbh & Co Kg Lying unit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3261639A (en) * 1963-12-26 1966-07-19 Robert E Phillips Lounge device
US3253285A (en) * 1965-01-04 1966-05-31 Seng Co Bed lounge mechanism
CH421382A (en) * 1965-04-23 1966-09-30 Altorfer Hans Bed frame

Also Published As

Publication number Publication date
DE3872168D1 (en) 1992-07-23
ATE77218T1 (en) 1992-07-15
EP0315588A1 (en) 1989-05-10

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