EP0315588A1 - Articulation en particulier pour lit à surface multiple - Google Patents

Articulation en particulier pour lit à surface multiple Download PDF

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Publication number
EP0315588A1
EP0315588A1 EP88810724A EP88810724A EP0315588A1 EP 0315588 A1 EP0315588 A1 EP 0315588A1 EP 88810724 A EP88810724 A EP 88810724A EP 88810724 A EP88810724 A EP 88810724A EP 0315588 A1 EP0315588 A1 EP 0315588A1
Authority
EP
European Patent Office
Prior art keywords
articulated
housing
rocker arm
rocker arms
fitting
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
EP88810724A
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German (de)
English (en)
Other versions
EP0315588B1 (fr
Inventor
Josef Schätti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT88810724T priority Critical patent/ATE77218T1/de
Publication of EP0315588A1 publication Critical patent/EP0315588A1/fr
Application granted granted Critical
Publication of EP0315588B1 publication Critical patent/EP0315588B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/08—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 couches with a multi-part lying 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.
  • the hinge fitting should allow an ergonomically favorable pivoting of the lying surfaces, especially in the case of couches.
  • 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 is used particularly advantageously in a bed, 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 to be longitudinally displaceable by a support arrangement on the frame.
  • the swiveling movement thus 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 part 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. In the basic position, the housing end faces are thus 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 fixedly arranged on the frame or on the housing 1 neten 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 ' the.
  • 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 therefore 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 hinge fitting and a bed with a hinge 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.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Special Chairs (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
EP88810724A 1987-11-04 1988-10-24 Articulation en particulier pour lit à surface multiple Expired - Lifetime EP0315588B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810724T ATE77218T1 (de) 1987-11-04 1988-10-24 Gelenkbeschlag, insbesondere fuer liegen mit mehrteiliger liegeflaeche.

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=4273519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810724A Expired - Lifetime EP0315588B1 (fr) 1987-11-04 1988-10-24 Articulation en particulier pour lit à surface multiple

Country Status (3)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0491667A1 (fr) * 1990-12-17 1992-06-24 M.D.F. S.a.s. DI CIPELLI SERGIO & C. Structure articulée et motorisée pour cadres de lit
FR2714805A1 (fr) * 1994-01-12 1995-07-13 Dievart Rene Charles Sommier de lit à profil longitudinal réglable.
EP1161907A1 (fr) 2000-06-09 2001-12-12 Schätti AG Dispositif d'actionnement d'une section pivotant pour un meuble d'assise et/ou de couchage
WO2004008917A1 (fr) * 2002-07-22 2004-01-29 Dewert Antriebs- Und Systemtechnik Gmbh & Co. Kg Element de repos

Citations (3)

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

Patent Citations (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 (de) * 1965-04-23 1966-09-30 Altorfer Hans Bettgestell

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0491667A1 (fr) * 1990-12-17 1992-06-24 M.D.F. S.a.s. DI CIPELLI SERGIO & C. Structure articulée et motorisée pour cadres de lit
FR2714805A1 (fr) * 1994-01-12 1995-07-13 Dievart Rene Charles Sommier de lit à profil longitudinal réglable.
EP1161907A1 (fr) 2000-06-09 2001-12-12 Schätti AG Dispositif d'actionnement d'une section pivotant pour un meuble d'assise et/ou de couchage
WO2004008917A1 (fr) * 2002-07-22 2004-01-29 Dewert Antriebs- Und Systemtechnik Gmbh & Co. Kg Element de repos
US7318625B2 (en) 2002-07-22 2008-01-15 Dewert Antriebs- Und Systemtechnik Gmbh & Co. Kg Reclining element

Also Published As

Publication number Publication date
ATE77218T1 (de) 1992-07-15
DE3872168D1 (de) 1992-07-23
EP0315588B1 (fr) 1992-06-17

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