EP3324790B1 - Armature d'assise - Google Patents

Armature d'assise Download PDF

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Publication number
EP3324790B1
EP3324790B1 EP16745432.1A EP16745432A EP3324790B1 EP 3324790 B1 EP3324790 B1 EP 3324790B1 EP 16745432 A EP16745432 A EP 16745432A EP 3324790 B1 EP3324790 B1 EP 3324790B1
Authority
EP
European Patent Office
Prior art keywords
frame
drive shaft
sliding frame
seat
seat 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.)
Active
Application number
EP16745432.1A
Other languages
German (de)
English (en)
Other versions
EP3324790A1 (fr
Inventor
Andreas CEBULSKY
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.)
Dewertokin GmbH
Original Assignee
Dewertokin GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dewertokin GmbH filed Critical Dewertokin GmbH
Priority to PL16745432T priority Critical patent/PL3324790T3/pl
Publication of EP3324790A1 publication Critical patent/EP3324790A1/fr
Application granted granted Critical
Publication of EP3324790B1 publication Critical patent/EP3324790B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • A47C7/5066—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation
    • A47C7/5068—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation actuated by linkages
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/0242—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by electric motors
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/0342—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movable backrest-seat unit or back-rest
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/14—Standing-up or sitting-down aids

Definitions

  • the invention relates to a seat fitting for a chair, with a base frame, a sliding frame, which is arranged relatively movable to the base frame, at least one acting on an associated drive shaft linear drive for pivoting a component or assembly of the seat fitting, such as foot, back or stand-up, between a deployed position and a retraction position back and forth relative to the base frame and / or the sliding frame, wherein the base frame, sliding frame, drive shaft and linear drive form a functional base unit which is mounted in a modular design to a complete seat fitting with footboard and backrest.
  • US 5,992,931 A and US 2013/0062914 A1 disclose seat fittings each with a base frame, sliding frame and acting on a drive shaft linear drive for adjusting the foot part. To adjust the back part while a relatively complex construction is provided in each case.
  • the invention has for its object to avoid these disadvantages, at least partially and in particular to further develop a seat fitting of the type mentioned, so that this variable is gestaltbar and can be easily adjusted later on demand.
  • the stated object is already achieved in that in the complete seat fitting a back part is provided, which is assigned to the back drive designed as tilttile linear drive, acting on the back drive shaft designed as a drive shaft acting linear drive.
  • a core idea of the invention is therefore that, the modular basic unit in the finished seat fitting at least or possibly also for the movement of the back part uses a drive shaft, which is operatively connected to a linear drive.
  • the back part is movable, in particular pivotable, preferably arranged directly on the base unit, in particular held on the sliding frame.
  • the back part drive shaft is arranged on the side facing away from the foot part of the push frame.
  • the back part is non-rotatable, in particular directly, connected to the back part drive shaft. Immediately means without interposed lever arrangement or gear-like connecting links.
  • the back part can be connectable by means of, in particular, a plug-in or plug-in catch connection with the connection part.
  • the basic unit is designed so that it is functional.
  • the essential for moving the component or the components or assembly or assemblies of the seat fitting basic components, such as footboard, backrest, seat frame or stand-up, with linear drive Drive shaft and the two frames with the base frame as a scaffold and the sliding frame as a moving part, are preassembled to the base unit.
  • the linear drive comprises other parts necessary for operation, such as lines and control or regulation.
  • the functional base unit does not include an intended padding in order to simplify the assembly. This can, as described below, subsequently clipped example, and thus be easily replaced as well.
  • the padding can already be carried out in the pre-assembly of the respective component or group of components.
  • no consideration has to be paid in particular to drives and their electrical system with control and power supply, nor do they need to be at least partially integrated into the upholstery, since the necessary drives and electrics are already preassembled in the basic unit and thus not part of the areas of the seat fitting to be upholstered Seating furniture or seat reclining furniture are.
  • the individual components or component groups can be arranged connected to the respective associated drive shaft torque-effective. They can be connected via connecting means, in particular via a lever arrangement or driven by the respectively associated drive axle coupling gear with the base unit.
  • At least one of the components or assemblies in particular all via a detachable connection, in particular at least partially connectable via a latching connection and here preferably via a snap-in connection with the base unit. This facilitates final assembly and allows easy replacement of these components or assemblies.
  • the individual components or component groups can each be prefabricated to form a module.
  • they can be prefabricated as modules already provided with the respectively associated connection means.
  • the drive shaft may serve as a transverse reinforcement of at least one of the frames.
  • the drive shaft can be attached to this frame rotatable radially and axially against displacement.
  • the drive shaft or, in the case of several linear drives, the drive shafts can be arranged in the transverse direction of the basic unit. It is preferably provided that the relative movements of the base frame to the sliding frame and that of the individual components or groups of components to the base unit takes place at least predominantly in a plane of movement perpendicular to the transverse direction. Preferably, this movement plane is arranged perpendicular to the transverse direction.
  • the drive shaft can be attached without bending moment or at least substantially free of bending moment to the relevant frame.
  • the drive shaft can be arranged so that it transmits at most a reduced bending moment.
  • the base frame and sliding frame are each independent components.
  • the base frame and the sliding frame can be arranged to be movable, in particular pivotable relative to each other. This relative pivoting of the base frame and sliding frame can be the same, especially evenly and synchronously.
  • the parts of the base frame and / or the sliding frame can be moved uniformly and synchronously.
  • the drive can be done via an associated drive shaft. This counteracts twisting of the frame and the resulting stiffness of the seat fitting.
  • the base frame and sliding frame can be arranged so that by the movement, in particular by the pivoting of the sliding frame in all its parts relative to all the parts of the base frame is moved.
  • linear drives can be provided with a motor, in particular a reversible electric motor.
  • a speed reduction gear can be provided on the output side to the engine.
  • a linear drive train may be arranged in the form of a threaded nut gear.
  • the threaded spindle nut transmission comprises a linearly displaceably guided in a longitudinal direction slide, which is arranged connected via an operative connection with an output member to cause a linear displacement of the slider in the longitudinal direction, a rotation of the output element here about the drive shaft.
  • a torque can be coupled into the drive shaft.
  • the operative connection between slide and output element may comprise an interlocking toothing.
  • the driven element can extend with a driven section in a transverse direction above the meshing toothing.
  • the interlocking toothing may be provided on a transversely lower end portion of the slider.
  • Structurally simple can alternatively be provided for converting the linear motion generated by the linear drive into a torque radially away from the drive shaft wegêtr and firmly connected to the same projection, with the output side of the linear drive is mechanically coupled.
  • the linear drive engages with its output element with respect to the associated drive shaft radially outside. The conversion of the linear movement into a torque can thus take place via a radially away from the drive shaft and fixedly connected to the same projection on which the linear drive on the output side eccentric to the drive shaft in particular engages radially on the outside of the projection.
  • the projection may further fixedly and rigidly secured to the drive shaft and be actuated by means of the output element, such as the free end of a threaded rod, the linear drive.
  • the projection may be positively, materially or frictionally connected to the drive shaft.
  • the drive shaft may be formed as a round profile, wherein the projection is arranged fixed to an attachment point of the drive shaft, for example via a drive shaft and projection radially projecting or at least partially projecting bolts, in particular screw with the drive shaft.
  • the output element and its associated slide of the other exchange group can be different than the output element and slide a exchange group.
  • the other exchange group may comprise output element and slide, which are equal or preferably more resistant to wear than the exchange group to be exchanged.
  • Such adjusting drives can also be understood as a rotary drive, since the adjusting drive generates a rotary movement on the drive shaft, although the adjusting drive itself has a linear drive train.
  • Other adjusting drives have gear trains or epicyclic gear, which also produce a rotating adjustment on the drive shaft.
  • Such adjusting drives can also be used as rotary drives be designated.
  • the adjustment is arranged directly coupled to the base frame and with the sliding frame.
  • the adjusting drive can engage with the base frame in a first connection point and with the sliding frame in a second connection point.
  • the two connection points can move relative to each other. This results in a movement of the sliding frame relative to the base frame.
  • At least one of the connection points may be formed, for example, as a clevis or fork joint or ball joint.
  • the drive shaft can be provided.
  • This can preferably have at least one, in particular per slide frame side part a firmly attached rotary lever whose respective free end is mechanically coupled to the respective sliding frame side member. It can be moved by the drive shaft, all elements of the sliding frame and these in turn relative to the base frame in a uniform and synchronous movement, in particular to be moved.
  • For bending moment freedom of the drive shaft can be provided that in the conversion of linear motion generated by the linear drive in a torque acting on the drive shaft bending moments substantially perpendicular to the longitudinal extension of the drive shaft are received by a bearing of the drive shaft to the housing.
  • the at least one linear drive can have a housing, through which the associated drive shaft is guided and mounted radially, in particular radially-axially, on the same.
  • the housing may be reinforced for receiving bending moments exerted by the linear drive on the drive shaft.
  • the housing may have a reinforcement.
  • Structurally simple can be provided laterally stiffening flanges. These can overlap the housing on the front side, in particular clasp-like. In this way, at least the predominant part of the bending moments exerted by the linear drive on the drive shaft can be received by the housing.
  • the drive shaft can serve at least predominantly for transmitting a torque, which is ultimately transmitted to the associated component or the associated component group. This measure makes it possible that the frame on which the drive shaft is mounted, is minimally loaded and only has to be designed according to simple.
  • the base frame of the seat fitting two basic frame side parts and, arranged between them, a transverse reinforcement, in particular a cross-member or cross bracing has.
  • the base frame side parts may be arranged perpendicular to the transverse direction.
  • the sliding frame may comprise two sliding frame side portions which are relatively movably attached to the base frame thereon.
  • the sliding frame side parts may be pivotably mounted on the base frame side parts, in particular with respect to a plane perpendicular to the transverse direction.
  • a stabilization of the sliding frame can, as described below, be effected by an additional drive shaft for a provided back part and / or the placement of a seat frame on the sliding frame.
  • the base frame side parts can be connected and spaced apart in the transverse direction be arranged. Since the drive shafts can also serve as a transverse reinforcement, no further sliding frame parts are necessary.
  • the sliding frame side parts can be arranged on the side of the base frame side parts in a way that is favorable in terms of force mechanics.
  • transverse reinforcement and drive shaft or, in the case of several linear drives, the drive shafts can additionally serve for stiffening the sliding frame and for spacing the sliding frame side parts in the transverse direction.
  • At least one of the drive shafts may preferably be rotatably mounted interlockingly on both ends in each case in an opening provided on a frame side part jaw-like bearing opening.
  • the same slot-like with a respect to the drive shaft radial engagement direction input-side constriction may be formed. This constriction may be slightly less, i. preferably by a few Zentelmillimeter less than the outer diameter of the associated drive shaft.
  • the mouth-like bearing opening may be formed open in a direction oblique to the seat plane and in the height direction.
  • the drive shaft can be designed in a development as a hollow shaft, which is guided on a radially inner axis.
  • the axle is fixedly connected to the associated frame.
  • the base frame side parts and / or the slide frame side parts are plate-shaped. These can force-favorable with their planes transverse and preferably extend in the retracted position of the seat fitting in particular perpendicular to the seat plane.
  • Basic frame side parts and / or sliding frame side parts can each be designed as a mounting plate.
  • all openings and receptacles can already be introduced on the mounting plate, which are necessary for mounting the individual modules, such as the back part, foot part, stand-up aid and / or seat frame are.
  • the seat fitting may be arranged counteracted in simplification of the same at least one linear drive on the sliding frame.
  • the at least one linear drive is arranged laterally flanged on one of the sliding frame side parts, in particular pivotably.
  • linear drives for moving the back part and the foot part are connected to the sliding frame side part.
  • the seat fitting may be developed so that, insofar as the foot part, the back and the stand-up are provided in the complete seat fitting, the foot part or the sliding frame designed as a sliding frame linear drive acting on a trained as a sliding frame shaft drive shaft linear drive, and / or the stand-up a trained as Aufsteh Anlagenlinearantrieb, are assigned to acting as Aufsteh Anlagenantriebswelle drive shaft acting linear drive.
  • the sliding frame can be arranged on its sliding frame side parts to be held pivotably relative to the base frame via pivot levers.
  • the pivoting movement can take place via sliding frame side parts and base frame side parts pivotally connecting pivot levers.
  • each sliding frame side part can be assigned a basic frame side part.
  • Sliding frame side part and basic frame side part, to form a pair of side panels be arranged in pairs to each other. They can advantageously pivot easily via pivot lever be arranged coupled.
  • the pivot lever together with the sliding frame drive shaft and the paired frame side parts associated with each other form a coupling gear, in particular a not fully recirculating rocker arm.
  • the coupling mechanism or the rocker arm of each side panel pair is structurally and mechanically advantageously the same.
  • the pivoting of the links of the individual rocker arms can be driven by the same drive shaft, in particular the same sliding frame drive shaft.
  • two pivot levers can be provided per sliding frame side part.
  • the pivoting can take place in a plane of movement perpendicular to the transverse direction.
  • the two pivoting levers associated with a sliding frame side part can be arranged with one end to pivot on the respective sliding frame side element.
  • At the other end of a pivot lever can be at least rotationally fixed to the sliding frame shaft and the other pivot lever pivotally attached to the base frame, in particular on the associated to this slide frame side member base frame side part.
  • the pivot levers are not arranged parallel to each other. They can be arranged so as to taper upward in the height direction in such a way that the sliding frame is moved with its method into the extended position on the first side intended for the foot part along a height direction.
  • the foot part can be held movable, in particular pivotable and / or displaceable relative to the base unit. Promoting a compact design, the sliding frame drive shaft can be arranged on the foot part of the intended first side of the base unit.
  • the foot part can be connected via a scissor-type lever arrangement on the first side of the base unit on the one hand to the sliding frame and on the other hand to the base frame.
  • the foot part can be pivotally connected to the associated sliding frame side part and the associated base frame side member.
  • the foot part on the scissor-type lever arrangement between the deployed position, in which the foot part is arranged approximately at the level of the seat plane, and a retraction position, in which the foot part is arranged under the base frame method, relative to the frame be moved back and forth.
  • It can be provided per side part a scissor-type lever assembly.
  • the foot part can be connected by means of a plug-in connection, in particular with a plug-and-detent connection with the lever arrangement.
  • the foot part and the scissor-type lever arrangement can be prefabricated as a module according to the modular design.
  • the foot part but also the back part in a simple manner can be mounted or exchanged.
  • the seat fitting may be provided for forming the stand-up a base support on which the base unit is arranged to be movably held in particular in the plane of movement.
  • the base support may be arranged downstream of the sliding frame starting with respect to a sequence of movements to the base frame.
  • An extension of the stand-up aid can predominantly mean a lifting of the base frame together with the sliding frame or a lifting of the base unit.
  • connecting elements For extending and retracting the base frame by operating the Aufsteh Anlagenlinearantriebs with Aufsteh Anlagenantriebswelle together with the sliding frame relative to the base support, connecting elements can be provided.
  • these parts may be a lever arrangement.
  • This lever assembly may kinematically move and translate with respect to the frame itself and / or between the frame and the base support.
  • the lever arrangement for the stand-up can be designed as a multi-member planar coupling gear, in particular as a 5- or 7-membered second coupling gear. This can also form a non-fully functional rocker arm.
  • the base support and the lever arrangement according to the modular design can be prefabricated as a module.
  • each base frame side part may be associated with an engaging second coupling gear.
  • the at least two second coupling gears can then be driven the same, with the same effect and at the same time become.
  • the base support or, if such is not provided, the base frame can preferably be designed to be rotatable in a conventional manner to a stand base or a seat frame scaffolding.
  • the base frame can define a receiving space.
  • Advantageous in terms of a compact design can be arranged in the receiving space of the sliding frame, the at least one linear drive and the associated drive shaft.
  • all linear drives can be arranged with the associated drive shafts in the receiving space.
  • the seat frame may be arranged in the height direction above the sliding frame on the sliding frame.
  • the seat frame may be detachably arranged on the sliding frame.
  • the seat frame may define a seating plane.
  • the seat plane can be moved in parallel with extension of the seat frame connected to the sliding frame.
  • the seat plane can be raised above the stand-up aid and / or pivoted about a pivot axis arranged parallel to the transverse direction of the fitting and in a central region with respect to the longitudinal direction.
  • the basic unit for producing a stool or stool-like seating furniture can be provided only with the stand-up with associated drive.
  • This seat fitting can be used in particular in the sanitary area to raise a patient, for example, for treatment.
  • it may preferably be optionally provided that the lifting of the seat plane in the vertical direction takes place as a parallel displacement, in particular via a parallel guide. It can also be with the method of the seat level in the height direction upward preferably stronger tendency of the seat plane to the first side of the Basic unit to be provided.
  • a seat can be provided with the seat fitting according to one of the previously and / or subsequently described embodiments.
  • FIGS. 1 . 2 and 6 in each case a view of an embodiment of a chair 1 with a functional basic unit 2 having seat fitting 3, however, shown without padding, while in the Figures 3-5 in each case a perspective view of an embodiment of the basic unit 2 is partially shown with additional modules 4 attached.
  • the basic unit 2 comprises a base frame 21, a sliding frame 22 arranged relatively movably relative to the base frame 21, and at least one linear drive 6 acting on an associated drive shaft 5 for reciprocating a component or group of components of the seat shock 3, such as the foot part 41, back part 42 and stand-up aid 43, between an open position ( Figures 2 . 3b and 5 ) and a retraction position ( FIGS. 1 . 3a and 4 ) relative to the frames 21, 22.
  • the base frame 21 has two base frame side parts 23 and transversely thereto, a cross member 24 which connects the base frame side parts 23 spaced from each other.
  • the sash 22 is constructed of two sash side portions 25 which are relatively movably attached to the base frame 21 thereon, whereby the base frame 21 is mechanically stabilized and reinforced.
  • the base frame 21 defines a receiving space 26, in which laterally on the base frame side parts, the sliding frame side parts 25 and on the inside thereof, the or the linear drives 6 are arranged.
  • the linear drives 6 each have a housing 61, is guided by or on which the respective associated drive shaft 5 and radially and axially displaceable in a Radiaxlagerung. Further, the drive shaft 5 extends or extend the drive shafts 5 in the transverse direction q through the receiving space 26, wherein it is in each case rotatably mounted on one of the frames 21,22 or are.
  • the linear drives 6 each engage with a drive end on the associated drive shaft 5 and are each about their housing 61 on the Base frame 21 mounted pivotally. For a particularly compact design of the basic unit 2 is achieved. Furthermore, drive shafts 5 and linear drives 6 increase the strength, in particular torsional strength of the base frame 21 and thus that of the base unit 2.
  • the housing 61 of the linear drives 6 is also reinforced by using additional lateral stiffening flanges 65 (FIG. FIG. 3b ) having. These lateral stiffening flanges 65 reinforce the wall of the housing 21 in particular at the points at which the drive shaft 5 is guided by the housing 61 and mounted on the housing 61. This makes it possible to store the drive shaft 5 in the Radiaxlagerung that this bending forces that act through the conversion of the linear movement of the linear drive 6 in a rotational movement substantially perpendicular to the drive shaft 5, at least predominantly be absorbed by the housing 61.
  • the base frame side parts 23 and slide frame side parts 25 are plate-shaped, with their planes here approximately perpendicular to the seat plane S and perpendicular to the transverse direction q and longitudinal direction l of the respective associated frame 21, 22 extend. Furthermore, in particular the Figures 3-6 clearly removable, are the plate-shaped base frame side panels 23 and sliding frame side parts 25 each designed as a mounting plate by already in this all openings and receptacles are introduced, which are necessary for mounting the individual modules 4. This means that no further work on the frame side parts 23, 25 is necessary for the final assembly of the seat fitting.
  • a foot part 41, a back part 42 and / or a stand-up aid 43 generally associated with the foot part 41 designed as a sliding frame linear drive 62 linear drive 6, which exerts a torque on a drive shaft 5 formed as a sliding frame drive shaft 5
  • the back part 42 is assigned a trained as scholarteillinearantrieb 63 linear drive 6, which acts on a formed as a back drive shaft 53 drive shaft 5.
  • the stand-up aid 43 is associated with a trained as Aufsteh Anlagenlinearantrieb 64 linear drive, which acts on a trained as Aufsteh Anlagenantriebswelle 53 drive shaft 5.
  • all linear drives 6 are identical in the embodiments of the seat fitting 2 shown here.
  • the sliding frame drive shaft 51 and the back part drive shaft 52 are each formed as a solid shaft, which are rotatably mounted in a locking receptacle 27 in the respective associated frame 21, 22, wherein the locking receptacle 27th is formed open in the height direction h substantially.
  • the drive shaft 5 are each laterally outwardly beyond the associated frame 21, 22 before (see FIG. 3 ).
  • FIG. 5a how is FIG. 5a can be removed, the Aufsteh Anlagenantriebswelle 53 formed in two parts by having an inner support shaft 54 which is fixedly connected to at least one basic frame side part 23 is.
  • this support shaft 54 is a hollow shaft 55 radiax-stored between the base frame side parts 23, which is driven by the Aufsteh bamboolinearantrieb 64.
  • the modules 4 are provided for final assembly here in each case with the connection means 7 necessary for connection to the base unit 2, wherein the connecting means 7 are formed differently depending on their function.
  • the slide frame 22 is pivotally supported on the slide frame side parts 25 via pivot levers 71 to the base frame 21. It is per sliding frame side member 25, a pair of levers with two pivot levers 71 is provided, which together with the sliding frame drive shaft 51 and the associated base frame side member 23 a flat four-member first linkage 721 with four hinge points G1-G4 form (see FIG. 3b , wherein a pivot lever forward between G1 and G2 is omitted for better clarity of the structure).
  • This first coupling gear 721 is driven via the sliding frame drive shaft 51.
  • Each sliding frame side part 25 is assigned a basic frame side part 23.
  • the seat fitting 3 here two first coupling gear 721, which are of identical design and are driven via the same sliding frame drive shaft 51.
  • the pivoting of the slide frame side parts 25 to the base frame side parts 23 is the same, even and synchronous.
  • the two pivot levers 71 of a lever pair run apart at the top. This results in a rocker construction, according to the in the deployed position of the foot part 41 (FIG. Fig. 2 ) the foot portion 41 adjacent first side 281 of the sliding frame 22 relative to the base frame 21 higher than in the retraction position ( Fig. 1 ) is employed, since in the Ausstellposition of the first side 281 associated pivot lever 71 is vertical.
  • the foot part 41 is connected via a scissor-type lever arrangement 73 the first side 281 of the base unit 2 on the one hand with the sliding frame 22 and on the other hand pivotally connected to the base frame 21. Like that FIGS. 1 and 2 removed, the foot part 41 is arranged in the extended position approximately at the height of the seat plane S, while it is arranged in the retraction position under the base frame 21 method. There is per side part 23, 25, a scissor-type lever assembly 73 is provided, which are arranged spaced apart in the transverse direction q. The foot part 41 is connected by means of a plug-and-snap connection with the two lever arrangement 73.
  • the back part 42 is here via angle pieces 74 fixedly connected to the back part drive shaft 52.
  • the back part drive shaft 52 is, similar to the sliding frame drive shaft 51, radially attached to the slide frame side parts 25 via jaw-shaped locking receptacles 27 here.
  • the angle pieces 74 are arranged at the ends of the back part drive shaft 52 fixedly connected to the same, wherein the sliding frame drive shaft 51 in the transverse direction q projects laterally beyond the frames 21, 22.
  • the seat frame 44 is mounted on the sash 22 with the seat frame 44 projecting forwardly and laterally beyond the frames 21,22. On the seat frame 44, however, no further component engages, so that the seat frame 44 is mechanically unloaded except for its own weight and the weight of a user, not shown here. Since the seat frame 44 can be mounted as a module, it can be prefabricated completely beforehand with any padding not shown here. Both, the low mechanical load and the possible prefabrication, also apply to the back part 42 and the foot part 41.
  • the seat fitting 3 In addition to the foot part 41 and the back part 42, it has a stand-up aid 43.
  • the stand-up aid 43 By means of the stand-up aid 43, the base unit 2 and thus the seat frame 44 can be raised with the seat plane S and around a with respect to the longitudinal direction l central pivot axis s are pivoted, with the location of the pivot axis s displaced during the lifting of the seat frame 44.
  • a base support 45 is provided, which is arranged downstream of the base frame 21 with respect to the sliding frame 22.
  • a further lever arrangement 73 is provided between the positions of the stowed position and retraction position, which is here designed as a 7-membered planar second coupling mechanism 722 and driven by the Aufsteh Anlagenlinearantrieb 64 with the Aufsteh Anlagenantriebswelle 53.
  • FIG. 6b is the second linkage 722 shown with its hinge points P1-P7, wherein the dashed lines connecting these hinge points P1-P7 schematically represent the gear members.
  • the hinge points P1 and P2 on the base support 45 can be considered as stationary housing movement points.
  • the two basic frame side parts 23 are each associated with the levers acting between the articulation points P1-P3 and P1 and P7.
  • a stand-up position is to be understood by the deployed position, in which the basic unit 2 is arranged substantially in the height direction h and at a distance from the base support 45.
  • a second coupling gear 722 acts on each basic frame side part 23, these then being driven by the same standing up auxiliary drive shaft 64 via the common stand-up auxiliary drive shaft 53.
  • the movement of the coupling gear 722 is equal and synchronous.
  • a comparison of the coupling gear 721, 722 according to FIG. 3b or 6b shows that the two joint points G3 and P4 can match.
  • FIG. 6 are all except for the stand base 11 of the chair 1 disturbing or for the representation of the function of the second linkage 722 superfluous components of the seat 1 and the seat fitting 3 omitted.
  • FIG. 6b can be removed, goes from the pivot point P2 from a three-point lever 75, which is rotatably mounted at the pivot point P3 on the here acting as a transverse axis 76 sliding frame drive shaft 51 and engages in P4 at a connecting axis 77.
  • a radial lever 78 is rotatably disposed, which is hingedly connected at the end with a radially acting on the connecting axis 77 lever 79.
  • connection axis 77 is acted upon radially.
  • a further lever 79 extends from the base support 45 approximately parallel to the three-point lever 75 to the associated base frame side member 23 to which it is pivotally mounted in the pivot point P7, wherein the pivot point P7 in FIG. 6b is obscured by the preceding standing-up auxiliary linear drive 53. Finally, there is further leverage between the pivot points P6 and P7.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Seats For Vehicles (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Claims (14)

  1. Armature d'assise pour un meuble de siège (1), comprenant une partie de pied (41), une partie arrière (42), un cadre de base (21), un cadre coulissant (22) disposé de manière à pouvoir être déplacé par rapport au cadre de base (21), et au moins un entraînement linéaire (6) qui agit sur un arbre d'entraînement (5) associé pour le mouvement réciproque d'un composant ou d'un ensemble de l'armature d'assise (3), tel que la partie de pied (41), la partie arrière (42) ou une aide pour se lever (43), entre une position étendue et une position rétractée par rapport au cadre de base (21) et/ou au cadre coulissant (22), le cadre de base (21), le cadre coulissant (22), l'arbre d'entraînement (5) et l'entraînement linéaire (6) formant une unité de base fonctionnelle (2) qui peut être montée dans une construction modulaire pour former une armature d'assise complète (3) avec la partie de pied (41) et la partie arrière (42),
    caractérisé en ce que la partie arrière (42) est prévue dans l'armature d'assise complète et à laquelle l'éntraînement linéaire (6) conçu comme entraînement linéaire de partie arrière (63) est associé et agisse sur l'arbre d'entraînement (5) conçu comme arbre d'entraînement de partie arrière (52), l'arbre d'entraînement de partie arrière (52) de la partie arrière (42) étant disposé sur un côté (282) du cadre coulissant (22) détourné de la partie de pied (41) et en ce que la partie arrière (42) est reliée de façon fixe en rotation avec l'arbre d'entraînement de partie arrière (52).
  2. Armature d'assise selon la revendication 1, caractérisée en ce que l'arbre d'entraînement (5) sert de renfort transversal d'au moins un des cadres (21, 22) de l'unité de base (2), l'arbre d'entraînement (5) étant monté de manière rotative sur ce cadre (21, 22).
  3. Armature d'assise selon l'une des revendications précédentes, caractérisée en ce que le cadre de base (21) de l'armature d'assise (3) présente deux parties latérales du cadre de base (23) et, disposées entre elles, un renforcement transversal, en particulier une traverse (24) ou une entretoise transversale, et en ce que le cadre coulissant (22) comprend deux parties latérales du cadre coulissant (25) qui sont fixées sur le cadre de base (21) pour être mobiles par rapport à ce dernier.
  4. Armature d'assise selon la revendication 3, caractérisée en ce que les parties latérales du cadre de base (23) et/ou les parties latérales du cadre coulissant (25) sont en forme de plaque, dont les plans s'étendent transversalement, en particulier perpendiculairement au plan du siège (S).
  5. Armature d'assise selon l'une des revendications précédentes, caractérisée en ce que l'au moins un entraînement linéaire (6) présente un carter (61) à travers lequel est guidé l'arbre d'entraînement (5) associé et est monté radialement, en particulier radialement-axialement, sur celui-ci, le carter (61) en particulier étant en construction renforcée pour recevoir les moments de flexion exercés par l'entraînement linéaire (6) sur l'arbre d'entraînement (5).
  6. Armature d'assise selon l'une des revendications précédentes, caractérisée en ce que dans la mesure où la partie de pied (41), la partie arrière (42) et une aide pour se lever (43) sont prévues dans l'armature d'assise complète (3), la partie de pied (41) présente un entraînement linéaire (6) associée à celle-ci sous forme d'entraînement linéaire de cadre coulissant (51) agissant sur un arbre d'entraînement (5), et/ou l'aide pour se lever (43) présente un entraînement linéaire (6) associée à celle-ci sous forme d'entraînement linéaire d'aide de levage (64) agissant sur un arbre d'entraînement (5) conçu comme arbre d'entraînement d'aide pour se lever (43).
  7. Armature d'assise selon la revendication 6, caractérisée en ce que le cadre coulissant (22) est maintenu sur ses parties latérales de cadre coulissant (25) de manière mobile en pivotement par rapport au cadre de base (21) par des leviers de pivotement (71).
  8. Armature d'assise selon la revendication 7, caractérisée en ce que sont prévus deux leviers de pivotement (71) par partie latérale du cadre coulissante (25) qui forment avec l'arbre d'entraînement de cadre coulissante (51) et la partie latérale de cadre de base (23) une transmission d'accouplement (721) qui est entraîné via l'arbre d'entraînement de cadre coulissante (51).
  9. Armature d'assise selon l'une des revendications précédentes, caractérisée en ce que la partie de pied (41) est reliée d'une part au cadre coulissant (22) et d'autre part au cadre de base (21) par un ensemble de levier (73) en forme de ciseaux sur un premier côté (281) de l'élément de base (2) adjacent à la partie de pied (41).
  10. Armature d'assise selon l'une des revendications précédentes, caractérisée en ce qu'il est prévu un support de base (45) pour former une ou ladite aide pour se lever (43), lequel support de base étant disposé en aval du cadre de base (21) par rapport au cadre coulissant (22), et en ce qu'un ensemble de levier (73) pour faire sortir et rétracter le cadre de base (21) avec le cadre coulissant (22) est disposé entre le support de base (45) pour le pivotement relatif de ce dernier.
  11. Armature d'assise selon la revendication 10, caractérisée en ce que l'ensemble de levier (73) est réalisé sous la forme d'une transmission d'accouplement à plusieurs éléments, en particulier sous la forme d'une deuxième transmission d'accouplement à 7 éléments (722).
  12. Armature d'assise selon l'une des revendications précédentes, caractérisée en ce que le cadre de base (21) définit un espace de réception (26) dans lequel est disposé le cadre coulissant (22) et/ou l'au moins un entraînement linéaire (6).
  13. Armature d'assise selon l'une des revendications précédentes, caractérisée en ce que l'unité de base (2) peut être montée de manière modulaire pour former une armature d'assise complète (3) comportant une partie de pied (41), une partie arrière (42) et un cadre de siège (44) prévu pour le cadre coulissant (22), et en ce que le cadre de siège (44) définit un plan de siège (S), le cadre de siège (44) étant disposé sur le cadre coulissant (22) au-dessus de celui-ci dans la direction de la hauteur (h) et étant maintenue audit cadre coulissant (22).
  14. Armature d'assise selon la revendication 13, caractérisée en ce que le plan de siège (S) est pivoté et/ou déplacé autour d'un axe de pivotement (s) disposé parallèlement à la direction transversale (q) de l'armature d'assise (3) et dans une zone centrale par rapport à la direction longitudinale (1) lors de la sortie du cadre de siège (44) relié au cadre coulissant (22) ainsi que/ou par l'aide pour se lever (43).
EP16745432.1A 2015-07-23 2016-07-21 Armature d'assise Active EP3324790B1 (fr)

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PL16745432T PL3324790T3 (pl) 2015-07-23 2016-07-21 Okucie siedziska

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DE202015103862.3U DE202015103862U1 (de) 2015-07-23 2015-07-23 Sitzbeschlag
PCT/EP2016/067433 WO2017013215A1 (fr) 2015-07-23 2016-07-21 Ferrure de siège

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EP3324790A1 EP3324790A1 (fr) 2018-05-30
EP3324790B1 true EP3324790B1 (fr) 2019-07-03

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US (1) US20180206643A1 (fr)
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DE (1) DE202015103862U1 (fr)
DK (1) DK3324790T3 (fr)
ES (1) ES2746148T3 (fr)
PL (1) PL3324790T3 (fr)
WO (1) WO2017013215A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10537177B2 (en) 2017-09-20 2020-01-21 La-Z-Boy Incorporated Furniture member with adjustable seat depth
US10561244B2 (en) 2017-09-20 2020-02-18 La-Z-Boy Incorporated Furniture member with recline and tilt
US10285502B2 (en) * 2017-09-20 2019-05-14 La-Z-Boy Incorporated Furniture member with adjustable seat height
US10492613B2 (en) 2017-09-20 2019-12-03 La-Z-Boy Incorporated Legrest mechanism for furniture member

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5992931A (en) * 1991-10-11 1999-11-30 La-Z-Boy Incorporated Modular power reclining chair
DE20106560U1 (de) 2001-04-14 2002-08-29 Dewert Antriebs Systemtech Sitz-Liegesesselbeschlag motorisch verstellbar
DE20200499U1 (de) 2002-01-15 2002-05-16 Dewert Antriebs Systemtech Möbelbeschlag zur Sitzhöhen- und Sitztiefenverstellung
US8608240B2 (en) * 2011-09-09 2013-12-17 La-Z-Boy Incorporated Mechanism and chair for powered combined and independent seat back and leg rest motion
US20140265502A1 (en) * 2013-03-15 2014-09-18 Stryker Corporation Medical support apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
THOMAS BRINKMANN: "Produktentwicklung mit Kunststoffen", 31 December 2007 (2007-12-31), XP055492220, ISBN: 978-3-446-22892-4, Retrieved from the Internet <URL:http://www.beck-shop.de/fachbuch/leseprobe/9783446442306_Excerpt_001.pdf> [retrieved on 20180712] *

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DE202015103862U1 (de) 2016-10-25
ES2746148T3 (es) 2020-03-04
EP3324790A1 (fr) 2018-05-30
US20180206643A1 (en) 2018-07-26
DK3324790T3 (da) 2019-10-07
WO2017013215A1 (fr) 2017-01-26
PL3324790T3 (pl) 2020-03-31

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