ITCO20010018A1

ITCO20010018A1 - PADDED WITH EXTENDABLE SEAT AND LIFTING BACK, SEPARATELY, FOR TRANSLATION.

Info

Publication number: ITCO20010018A1
Application number: IT2001CO000018A
Authority: IT
Inventors: Giulio Manzoni
Original assignee: Giulio Manzoni
Priority date: 2001-06-27
Filing date: 2001-06-27
Publication date: 2002-12-27
Also published as: ITCO20010018A0

Description

Titolo : imbottito con sedile allungabile e schienale innalzabile, disgiuntamente, per traslazione. Title: padded with extendable seat and backrest that can be lifted, disjointly, by translation.

DESCRIZIONE DESCRIPTION

La presente invenzione si riferisce ad un imbottito con sedile allungabile e schienale innalzabile, disgiuntamente, per traslazione. Piu’ in particolare la presente invenzione riguarda un imbottito che presenta un piano con una sottostante coppia di carrucole che scorrono in guide ad U, tra loro ortogonali, sostenuto da due coppie di ruote rivolte verso l’alto. Con una semplice trazione, il piano ruota ortogonalmente ed avanza, guidato dalle carrucole, allungando il sedile. Il telaio, sagomato cosi da sostenere lo schienale/hbacciolo, contiene il cinematismo di innalzamento del cuscino-schienale contenente un pannello avvitato al cinematismo composto da una piastra incernierata ad un distanziale, solidale ad un capo di una coppia di piastre orizzontali, che all’altro capo sono snodate ad un supporto solidale allo schienale/bracciolo. L’innalzamento del cuscino-schienale, la sua traslazione e variazione dell’inclinazione, avviene spingendolo verso l’alto, anche da seduti, coadiuvato da molle a trazione ed a torsione presenti nel cinematismo. L’invenzione di cui sopra e’ volta a risolvere il problema costante nel campo dell’arredo ed in particolare in quello degli imbottiti di avere comodi divani e/o poltrone, che consentano sia la conversazione che un completo relax, cosi’ come diffusa e’ l’esigenza di avere imbottiti che offrano diverse soluzioni di componibilita’, con sedute normali e/o chaise-longue.. Numerose sono state, nel corso degli anni, le soluzioni proposte. Sono stati cosi’ realizzati imbottiti con poggiapiedi a scomparsa e/o con poggiatesta, piu’ o meno fissi o con schienali inclinabili od innalzabili, imbottiti particolarmente profondi con quantità’ infinita di cuscini buttati nel tentativo di modulare la profondità’, imbottiti con grande pouff mobile, imbottiti con chaise-longue, imbottiti a puzzle, trasformabili in vasche e cosi’ via. Le soluzioni fino ad oggi proposte hanno dato, cosi’, la possibilità’ al consumatore di avere imbottiti in grado di essere o di diventare sempre piu’ comodi fino a consentire un completo relax, ma, ciò’ nonostante, gli imbottiti esistenti non sempre racchiudono contemporaneamente in se’ le caratteristiche di valido imbottito sia per la conversazione che per il completo relax: Ulteriore inconveniente delle invenzioni note e’ che, anche quando un imbottito può’ venire utilizzato sia per la conversazione che per il relax, spesso o rivela la sua trasformabilità’, con notevole pregiudizio per l’estetica del prodotto, oppure si presenta valido esteticamente o solo quando imbottito da conversazione o solo quando imbottito da relax. Ulteriore inconveniente delle invenzioni note e’ che gli imbottiti esistenti spesso offrono o la possibilità’ di allungare la seduta, oppure quella di innalzare o di inclinare lo schienale, oppure hanno il movimento sincronizzato, cosi’ da dare solo due posizioni, quella da conversazione e quella relax e nessuna posizione intermedia. Ulteriore inconveniente delle invenzioni note e’ che alcuni imbottiti esistenti anche quando hanno la seduta allungabile con un movimento disgiunto da quello dello schienale, possono inclinare lo schienale, ma non innalzarlo ed il problema della testa viene eventualmente risolto con un ulteriore poggiatesta. Scopo della presente invenzione e’ quello di ovviare a questi e ad altri inconvenienti, realizzando un imbottito con sedile allungabile e schienale innalzabile, disgiuntamente, per traslazione. Piu’ in particolare, scopo della presente invenzione e’ quello di realizzare un imbottito che permetta di venire utilizzato sia con il sedile allungato, ma con lo schienale basso, sia con lo schienale alto, ma con la seduta normale, sia con lo schienale alto e il sedile allungato. Ulteriore scopo della presente invenzione e’ quello di realizzare un imbottito che consenta di movimentare il cuscino-schienale con un semplice gesto e rimanendo seduti. Ulteriore scopo della presente invenzione e’ quello di realizzare un imbottito che possa venire utilizzato da ciascun utente autonomamente, senza svantaggiose sincronie di allungo seduta che costringerebbero gli utenti di due sedute adiacenti ad alzarsi insieme per consentire la movimentazione dei sedili. Ulteriore scopo della presente invenzione e’ quello di realizzare un imbottito che si possa trasformare mediante meccanismi e movimenti semplici, facili e sicuri. Ulteriore scopo della presente invenzione e’ quello di realizzare un imbottito che in ogni sua posizione sia esteticamente piacevole. Questi ed altri scopi vengono raggiunti dall’ imbottito con sedile allungabile e schienale innalzabile, disgiuntamente, per traslazione secondo la presente invenzione, che fondamentalmente comprende: un piano di supporto per l’imbottitura del sedile cui e’ solidale una coppia di carrucole montate su piastre opportunamente dislocate cosi’ da scorrere una verticalmente, l’altra orizzontalmente nelle guide ad U, tra loro ortogonali e solidali rispettivamente al fianco ed ai longheroni in tubolare metallico della struttura portante dell’imbottito. Detto piano di supporto e’ sostenuto da due coppie di ruote pivottanti rivolte verso l’alto, solidali al telaio tramite opportune piastre di sostegno, cosi’ che, con una semplice trazione, ruoti di novanta gradi ed avanzi, guidato nel movimento dalla corsa delle carrucole all’ interno delle guide ad U, ottenendo cosi’ l’allungamento del sedile. Il fianco del telaio posteriormente e’ costituito da una L rovescia in tubolare metallico adeguatamente orientata cosi’ da sostenere il telaio dello schienale/bracciolo, in tubolare metallico, cui e’ solidale il cinematismo di innalzamento del cuscino-schienale e il piano sagomato di sostegno dell’imbottitura del bracciolo/schienale. Nel cuscino schienale e’ presente un pannello di supporto all’imbottitura avvitato alla piastra ad U del cinematismo dello schienale. Detto cinematismo e’ composto: da una piastra ad U in piatto metallico incernierata alle estremità’ ad un distanziale sagomato, al quale si avvita un capo della coppia di piastre orizzontali a J, all’altro capo snodate alla piastra sagomata verticale, solidale al telaio dello schienale/bracciolo. Tra la piastra ad U ed il distanziale sagomato e’ presente una molla a torsione, coassiale alla cerniera e montata sull’albero allungato della cerniera stessa, agente nel verso di chiusura della cerniera. La piastra ad U presenta un labbro di rifermo alla rotazione, per interferenza con il distanziale sagomato, cosi’ da impedire il ribaltamento del cuscino-schienale. Un’ulteriore molla a trazione e’ inserita tra la coppia di piastre a J e la coppia di piastre sagomate, cosi’ da facilitare l’innalzamento del cuscino-schienale. L’innalzamento del cuscino-schienale e la sua contemporanea traslazione all’indietro, con variazione dell’inclinazione, avviene semplicemente spingendo verso l’alto, anche da seduti, il cuscino stesso che si innalza ed arretra, coadiuvato dall’azione della molla a trazione interposta tra la piastra a J e la piastra sagomata, rifermandosi, innalzato ed arretrato, per l’interferenza tra il labbro della piastra a J e la piastra sagomata stessa. Contemporaneamente, l’azione della molla a torsione, interposta tra la piastra ad U e il distanziale sagomato, richiama il cuscino-schienale a rifermarsi contro la coppia di piastre a J, mantenendo cosi’ la inclinazione desiderata, determinata dalla posizione della coppia di piastre a J. Il trovato e’ applicabile ad ogni singolo posto a sedere. Nel caso che il piano seduta debordi, anche notevolmente, dalla struttura portante dell’imbottito, basterà’ semplicemente applicare una coppia di sostegni con ruota alla parte debordante del piano seduta stesso, cosi’ da ottenere l’allungamento contemporaneo del piano seduta dei tre posti ad angolo di una classica composizione angolare. Queste, nonché’ ulteriori caratteristiche dell’ imbottito con sedile allungabile e schienale innalzabile, disgiuntamente, per traslazione , oggetto della presente invenzione , verranno meglio evidenziate nel corso della descrizione che segue di una sua forma di esecuzione preferita e non limitativa, fatta con riferimento alle allegate tavole di disegno in cui si rapprentano: The present invention relates to a padded seat with an extendable seat and a back that can be lifted, disjointly, by translation. More specifically, the present invention relates to a padded item that has a top with an underlying pair of pulleys that slide in U-shaped guides, mutually perpendicular, supported by two pairs of wheels facing upwards. With a simple traction, the top rotates orthogonally and moves forward, guided by the pulleys, extending the seat. The frame, shaped so as to support the backrest / hinge, contains the lifting mechanism of the backrest cushion containing a panel screwed to the mechanism consisting of a plate hinged to a spacer, integral with one end of a pair of horizontal plates, which other item are articulated to a support integral with the backrest / armrest. The raising of the backrest cushion, its translation and variation of the inclination, takes place by pushing it upwards, even when seated, assisted by traction and torsion springs present in the kinematics. The above invention is aimed at solving the constant problem in the field of furniture and in particular in that of upholstered furniture to have comfortable sofas and / or armchairs, which allow both conversation and complete relaxation, as well as widespread and 'the need to have upholstered items that offer different modular solutions, with normal seats and / or chaise-longues. Over the years, the solutions proposed have been numerous. They have thus been made upholstered with retractable footrests and / or with headrests, more or less fixed or with reclining or liftable backrests, particularly deep padded with an infinite quantity of cushions thrown in an attempt to modulate the depth ', padded with large pouf mobile, padded with chaise-longue, padded with puzzles, convertible into tubs and so on. The solutions proposed so far have thus given the consumer the possibility of having upholstered items able to be or to become more and more comfortable to the point of allowing complete relaxation, but, nevertheless, the existing upholstery does not always contain at the same time in itself the characteristics of valid upholstery both for conversation and for complete relaxation: A further disadvantage of known inventions is that, even when an upholstery can be used both for conversation and for relaxation, often or reveals its transformability ', with considerable damage to the aesthetics of the product, or it is aesthetically valid or only when padded for conversation or only when padded for relaxation. A further drawback of the known inventions is that the existing upholstered items often offer either the possibility of extending the seat, or that of raising or tilting the backrest, or they have a synchronized movement, so as to give only two positions, that for conversation and that relaxation and no middle position. A further drawback of known inventions is that some existing upholstered items, even when they have an extendable seat with a movement separate from that of the backrest, can tilt the backrest, but not raise it and the problem of the head is eventually solved with an additional headrest. The purpose of the present invention is to obviate these and other drawbacks by creating a padded seat with an extendable seat and backrest that can be lifted, disjointly, by translation. More particularly, the purpose of the present invention is to provide a pad that allows it to be used both with the seat extended, but with a low back, and with a high back, but with a normal seat, and with a high back. and the elongated seat. A further purpose of the present invention is to make a pad that allows you to move the backrest cushion with a simple gesture and while remaining seated. A further purpose of the present invention is to create an upholstery that can be used by each user independently, without disadvantageous seat extension synchronicities that would force the users of two adjacent seats to get up together to allow the seats to be moved. A further purpose of the present invention is to create an upholstery that can be transformed by means of simple, easy and safe mechanisms and movements. A further purpose of the present invention is to make an upholstery that is aesthetically pleasing in any position. These and other purposes are achieved by the upholstery with extensible seat and backrest that can be lifted, disjointly, by translation according to the present invention, which basically comprises: a support surface for the padding of the seat to which a pair of pulleys mounted on plates is integral. suitably displaced so as to slide one vertically, the other horizontally in the U-shaped guides, orthogonal to each other and integral respectively to the side and to the tubular metal side members of the supporting structure of the upholstery. Said support surface is supported by two pairs of pivoting wheels facing upwards, integral with the frame by means of suitable support plates, so that, with a simple traction, it rotates ninety degrees and advances, guided in the movement by the stroke of the pulleys inside the U-shaped guides, thus obtaining the lengthening of the seat. The side of the frame at the rear consists of an inverted L in metal tubing suitably oriented so as to support the tubular metal backrest / armrest frame, to which the raising mechanism of the backrest cushion and the shaped support surface are integral. of the armrest / backrest padding. In the back cushion there is a support panel for the padding screwed to the U-shaped plate of the backrest kinematics. Said kinematic mechanism is composed of: a U-shaped plate in a metal plate hinged at the ends to a shaped spacer, to which one end of the pair of horizontal J-shaped plates is screwed, at the other end articulated to the vertical shaped plate, integral with the frame of the backrest / armrest. Between the U-shaped plate and the shaped spacer there is a torsion spring, coaxial to the hinge and mounted on the elongated shaft of the hinge itself, acting in the direction of closure of the hinge. The U-shaped plate has a lip referring to the rotation, by interference with the shaped spacer, so as to prevent the back cushion from overturning. An additional traction spring is inserted between the pair of J-plates and the pair of shaped plates, so as to facilitate the raising of the backrest cushion. The raising of the backrest cushion and its simultaneous backward translation, with variation of the inclination, occurs simply by pushing upwards, even when seated, the cushion itself which rises and retracts, assisted by the action of the spring. traction interposed between the J-plate and the shaped plate, stopping, raised and withdrawn, due to the interference between the lip of the J-shaped plate and the shaped plate itself. At the same time, the action of the torsion spring, interposed between the U-shaped plate and the shaped spacer, calls the backrest cushion to rest against the pair of J-plates, thus maintaining the desired inclination, determined by the position of the pair of plates. a J. The invention is applicable to every single seat. In the event that the seat surface overflows, even considerably, from the supporting structure of the upholstery, it will be sufficient to simply apply a pair of supports with wheels to the protruding part of the seat surface itself, so as to obtain the simultaneous elongation of the seat surface of the three seats. corner of a classic corner composition. These, as well as further characteristics of the upholstery with extensible seat and backrest that can be raised, disjointly, by translation, object of the present invention, will be better highlighted in the course of the following description of a preferred and non-limiting embodiment thereof, made with reference to the attached drawing tables showing:

a fig. 1 : una vista in pianta del cinematismo del sedile, to fig. 1: a plan view of the seat kinematics,

a fig. 2: ima sezione del particolare di piano di supporto, carrucole, guide ad U e ruote pivottanti. to fig. 2: a section of the detail of the support surface, pulleys, U-shaped guides and pivoting wheels.

a fig. 3: una sezione del particolare del sistema di rifermo del piano di sostegno. to fig. 3: a section of the detail of the reference system of the support plan.

a fig. 4: una sezione trasversale dell’imbottito con cinematismo del cuscino-schienale. to fig. 4: a cross section of the upholstery with kinematics of the backrest cushion.

a fig. 5.: una sezione del particolare del cinematismo del cuscino-schienale. to fig. 5 .: a section of the detail of the kinematics of the back cushion.

a fig. 6.: ima vista prospettica sezionata del cinematismo del cuscino-schienale. to fig. 6 .: a sectional perspective view of the kinematics of the backrest cushion.

a fig. 7. : una composizione angolare, to fig. 7.: a corner composition,

a fig. 8.: esempio di composizione. to fig. 8 .: example of composition.

Con riferimento alle citate figure Γ imbottito con sedile allungabile e schienale innalzabile, disgiuntamente, per traslazione, secondo l’invenzione, presenta basilarmente: un piano di supporto 1, costituito ad es. da un pannello in legno, atto a ricevere la consueta imbottitura per sedile, al quale sono avvitate le piastre 2 e 3 cui sono solidali le carrucole 4 e 5 che scorrono rispettivamente nelle guide ad U 6 e 7 tra loro solidali ortogonalmente ed ancorate tramite viti rispettivamente al fianco 8 ed ai longheroni 9 e 10 in tubolare metallico, costituenti la struttura portante dell’imbottito. Detto piano I e’ sostenuto dalle ruote pivottanti 11,12,13,14, rivolte verso l’alto ed ancorate al telaio tramite le piastre di sostegno 15,16,17,18. Vantaggiosamente al piano di supporto 1 sono avvitate le piastre sagomate 19 e 20 con funzione di riscontro del piano 1 rispettivamente nella posizione chiusa ed aperta contro le staffe ad L 21 e 22, solidali rispettivamente al fianco 8 ed al longherone posteriore 10. Il piano di supporto 1 con una semplice trazione ruota di novanta gradi ed avanza, guidato nel movimento dalla corsa delle carrucole 4 e 5 all’interno delle guide ad U 6 e 7 . La carrucola 5 si muove all’indietro lungo la guida 7, fino a rifermarsi contro il perno smontabile 23 posto all’altra estremità’ della guida 7, mentre la carrucola 4 si muove lungo la guida 6, ottenendo cosi’, dalla combinazione di due moti rettilinei ortogonali, la rotazione di novanta gradi del piano di supporto 1 ed il suo riposizionamento avanzato, realizzando cosi’ l’allungamento del sedile. Vantaggiosamente la piastra sagomata 20 si riposiziona sotto la staffe 22 con funzione di ancoraggio del piano di supporto 1 aperto. Il riposizionamento del piano di supporto 1 avverrà’ compiendo le operazioni a ritroso, cosi’, vantaggiosamente, la piastra sagomata 19 si riposiziona sotto la staffe 21 con funzione di ancoraggio del piano di supporto 1 chiuso. Il fianco 8 posteriormente presenta un sostegno 24 ad L rovescia in tubolare metallico adeguatamente orientato su cui si ancora il telaio ad U dello schienale/bracciolo 25, realizzato in tubolare metallico, tramite le coppie di viti 26 e 27. A detto telaio 25 viene avvitato sulle coppie di staffe 28,29,30,31, il pannelo sagomato 32 di sostegno per l’imbottitura dello schienale/braccioto. Il cuscino-schienale 33 presenta posteriormente un pannello di supporto 34, costituito, ad es., da un palmello in legno, avvitato alla piastra 35 ad U in piatto metallico di adeguate dimensioni snodato alle estremità’, tramite la coppia di cerniere 36, ad un piatto distanziale 37 adeguatamente sagomato, alle cui estremità’ si avvita un capo della coppia di piastre orizzontali a J 38, all’altro capo snodate, tramite la cerniera 39, alla coppia di piastre verticali 40 in piatto metallico, solidale al telaio dello schienale/braccioto 25 in tubolare metallico. Tra la piastra 35 ad U ed il piatto distanziale sagomato 37 e’ presente una coppia di molle a torsione 41, coassiali alla coppia di cerniere 36 e montate sull’albero allungato delle cerniere stesse, agenti nel verso di chiusura delle cerniere. Le cerniere 36 sono posizionate sulla piastra ad U 35 cosicché’ l’estremità’ di detta piastra le sopravanzi, venendosi cosi’ a creare un labbro con funzione di rifermo alla rotazione per interferenza con il piatto distanziale 37. Viene cosi’ impedito il ribaltamento del cuscino-schienale 33. Un’ulteriore coppia di molle a trazione 42 e’ agganciata, ad un lato, sullla coppia di perni 43, solidali alla coppia di piastre verticali 40 ed, all’altro, al foro 44 presente sull’estremità’ ricurva della coppia di piastre a J 38, cosi’ da facilitare l’innalzamento del cuscino-schienale 33. L’innalzamento del cuscino-schienale 33 e la sua contemporanea traslazione al’indietro con variazione dell’inclinazione, avviene semplicemente spingendo verso l’alto, anche da seduti, il cuscino stesso 33 che si innalza ed arretra, coadiuvato dall’azione della coppia di molle a trazione 42 interposta tra la piastra a J 38 e la piastra sagomata 40, rifermandosi, innalzato ed arretrato, per l’interferenza tra il labbro posteriore curvo della piastra a J 38 e la stessa piastra sagomata 40. Contemporaneamente, l’azione della coppia di molle a torsione 41, interposta tra la piastra ad U 35 e il distanziale sagomato 37, richiama il cuscino-schienale 33 a rifermarsi contro la coppia di piastre a J 38, mantenendo cosi’ la inclinazione desiderata, determinata dalla posizione della coppia di piastre a J 38. Il trovato e’ applicabile ad ogni singolo posto a sedere. Nel caso che il piano seduta debordi, anche notevolmente, dalla struttura portante dell’imbottito, cosi’ come esemplificativamente raffigurato in fig.7. (nella quale e’ rappresentato uno schema di composizione angolare) basterà’ semplicemente applicare una coppia di sostegni con ruota 45 alla parte debordante del piano seduta stesso, cosi’ da ottenere l’allungamento contemporaneo del piano seduta dei tre posti ad angolo di una classica composizione angolare. Nella fig.8 e’ rappresentata una delle innumerevoli possibilità’ compositive che il trovato permette di realizzare in finizione delle peculiarità’ sia dinamiche che estetiche dello stesso. L’invenzione, cosi’ come descritta, e’ stata proposta a puro titolo esemplificativo, intendendosi che essa potrà’ essere suscettibile di numerose modifiche o varianti, tutte rientranti nell’ambito della presente invenzione; apportando leggere o piu’ sofisticate modifiche, rettifiche ed accorgimenti, il trovato potrà’ avere applicazioni, anche in altri campi. With reference to the aforementioned figures Γ padded with extendable seat and backrest that can be lifted, disjointly, by translation, according to the invention, basically presents: a support surface 1, consisting for example from a wooden panel, suitable for receiving the usual seat padding, to which the plates 2 and 3 are screwed to which the pulleys 4 and 5 are integral, which slide respectively in the U-shaped guides 6 and 7 mutually integral orthogonally and anchored by screws respectively to the side 8 and to the longitudinal members 9 and 10 in metal tubing, constituting the load-bearing structure of the upholstery. Said plane I is supported by the pivoting wheels 11,12,13,14, facing upwards and anchored to the frame through the support plates 15,16,17,18. Advantageously, the shaped plates 19 and 20 are screwed to the support surface 1 with the function of checking the surface 1 respectively in the closed and open position against the L-shaped brackets 21 and 22, integral respectively to the side 8 and to the rear side member 10. support 1 with a simple traction rotates ninety degrees and moves forward, guided in movement by the stroke of the pulleys 4 and 5 inside the U-shaped guides 6 and 7. The pulley 5 moves backwards along the guide 7, until it stops against the removable pin 23 placed at the other end of the guide 7, while the pulley 4 moves along the guide 6, thus obtaining, from the combination of two rectilinear orthogonal motions, the rotation of ninety degrees of the support surface 1 and its advanced repositioning, thus realizing the elongation of the seat. Advantageously, the shaped plate 20 is repositioned under the stirrups 22 with the function of anchoring the open support surface 1. The repositioning of the support surface 1 will take place by performing the operations backwards, thus, advantageously, the shaped plate 19 is repositioned under the brackets 21 with the function of anchoring the closed support surface 1. The side 8 at the rear has an inverted L-shaped support 24 in suitably oriented metal tubing on which the U-shaped frame of the backrest / armrest 25, made of metal tubing, is anchored by means of the pairs of screws 26 and 27. To said frame 25 it is screwed on the pairs of brackets 28,29,30,31, the shaped support panel 32 for the padding of the backrest / armrest. The backrest cushion 33 has at the rear a support panel 34, consisting, for example, of a wooden palm, screwed to the U-shaped plate 35 in a metal plate of adequate size, articulated at the ends, by means of the pair of hinges 36, to a suitably shaped spacer plate 37, at the ends of which one end of the pair of horizontal J-shaped plates 38 is screwed, at the other end articulated, by means of the hinge 39, to the pair of vertical plates 40 in a metal plate, integral with the frame of the backrest / arm 25 in tubular metal. Between the U-shaped plate 35 and the shaped spacer plate 37 there is a pair of torsion springs 41, coaxial to the pair of hinges 36 and mounted on the elongated shaft of the hinges themselves, acting in the closing direction of the hinges. The hinges 36 are positioned on the U-shaped plate 35 so that the 'end' of said plate overhangs them, thus creating a lip with the function of referring to the rotation by interference with the spacer plate 37. The overturning of the back cushion 33. A further pair of traction springs 42 is hooked, on one side, to the pair of pins 43, integral with the pair of vertical plates 40 and, on the other, to the hole 44 present on the curved end of the pair of J-shaped plates 38, so as to facilitate the raising of the backrest cushion 33. The raising of the backrest cushion 33 and its simultaneous translation backwards with variation of the inclination, takes place simply by pushing upwards , even when seated, the cushion itself 33 which rises and retracts, assisted by the action of the pair of tension springs 42 interposed between the J-shaped plate 38 and the shaped plate 40, stopping, raised and withdrawn, due to the interference between the curved rear lip of the J-plate 38 and the same shaped plate 40. At the same time, the action of the pair of torsion springs 41, interposed between the U-shaped plate 35 and the shaped spacer 37, calls the backrest cushion 33 to rest against the pair of J-shaped plates 38, thus maintaining the desired inclination, determined by the position of the pair of J-shaped plates 38. The invention is applicable to every single seating position. In the event that the seat surface overflows, even considerably, from the supporting structure of the upholstery, as illustrated by way of example in fig.7. (in which an angular composition scheme is shown) it will be sufficient to simply apply a pair of supports with wheel 45 to the protruding part of the seat surface itself, so as to obtain the simultaneous elongation of the seat surface of the three corner seats of a classic angular composition. Fig. 8 shows one of the innumerable compositional possibilities that the invention allows to realize both dynamic and aesthetic peculiarities of the same. The invention, as described, has been proposed purely by way of example, it being understood that it may be susceptible to numerous modifications or variations, all falling within the scope of the present invention; by making slight or more sophisticated modifications, corrections and expedients, the invention may have applications, even in other fields.

Claims

CLAIMS 1) Upholstered with extendable seat and backrest that can be lifted, separately, for translation.

2) Padded with extensible seat and backrest that can be lifted, separately, by translation according to claim n. 1, characterized by the fact that the upholstery consists of: a support surface for seat upholstery to which a pair of pulleys mounted on plates suitably displaced so as to slide one vertically, the other horizontally in the guides is integral. U, orthogonal to each other and integral respectively to the side and to the tubular metal longitudinal members of the supporting structure of the upholstery. Said support surface is supported by two pairs of pivoting wheels facing upwards, integral with the frame by means of suitable support plates, so that, with a simple traction, it rotates ninety degrees and advances, guided in the movement by the stroke of the pulleys inside the U-shaped guides, thus obtaining the elongation of the seat.

3) Upholstered with extendable seat and backrest that can be lifted separately, by translation, according to one or more of the preceding claims, characterized by the fact that the side of the frame at the rear is constituted by an inverted L in metal tubing suitably oriented so as to support the frame of the backrest / armrest, in metal tubing, to which the lifting mechanism of the backrest cushion and the shaped support surface of the armrest / backrest padding are integral. In the back cushion there is a padding support panel screwed to the U-shaped plate of the backrest kinematics. Said kinematic mechanism is composed of: a U-shaped plate in a metal plate hinged at the ends to a shaped spacer, to which one end of the pair of horizontal J-shaped plates is screwed, at the other end articulated to the vertical shaped plate, integral with the frame of the backrest / armrest. Between the U-shaped plate and the shaped spacer there is a torsion spring, coaxial to the hinge and mounted on the elongated shaft of the hinge itself, acting in the direction of closure of the hinge. The U-shaped plate has a lip referring to the rotation, by interference with the shaped spacer, so as to prevent the back cushion from overturning. An additional traction spring is inserted between the pair of J-plates and the pair of shaped plates, so as to facilitate the raising of the backrest cushion.

4) Upholstered with extendable seat and backrest that can be lifted, disjointly, by translation, according to one or more of the preceding claims, characterized by the fact that simply by pushing upwards, even when seated, the cushion itself which rises and retracts, assisted by the action of the traction spring interposed between the J-shaped plate and the shaped plate, stopping, raised and set back, due to the interference between the lip of the J-plate and the shaped plate itself. At the same time, the action of the torsion spring, interposed between the U-shaped plate and the shaped spacer, calls the backrest cushion to rest against the pair of J-plates, thus maintaining the desired inclination, determined by the position of the pair of plates. a J. The invention is applicable to every single seat. In the event that the seat surface overflows, even considerably, from the supporting structure of the upholstery, it will be sufficient to simply apply a pair of supports with wheels to the protruding part of the seat surface itself, so as to obtain the simultaneous elongation of the seat surface of the three seats. corner of a classic corner composition.

5) Padded with extendable seat and backrest that can be lifted, disjointly, by translation, according to one or more of the preceding claims, characterized by the fact that, as indicated in figures 1 to 8, it basically has: a support surface 1, consisting for example from a wooden panel, suitable for receiving the usual seat padding, to which the plates 2 and 3 are screwed to which the pulleys 4 and 5 are integral, which slide respectively in the U-shaped guides 6 and 7 mutually integral orthogonally and anchored by screws respectively to the side 8 and to the longitudinal members 9 and 10 in metal tubing, constituting the load-bearing structure of the upholstery. Said plane 1 is supported by the pivoting wheels 11,12,13,14, facing upwards and anchored to the frame through the support plates 15,16,17,18. Advantageously, the shaped plates 19 and 20 are screwed to the support surface 1 with the function of abutting the surface 1 respectively in the closed and open position against the L-shaped brackets 21 and 22, integral respectively to the side 8 and to the rear side member 10.

6) Upholstered with extendable seat and backrest that can be lifted, disjointly, by translation, according to one or more of the preceding claims, characterized by the fact that the support surface 1 rotates ninety degrees with a simple traction and moves forward, guided in movement by the stroke of the pulleys 4 and 5 inside the U-guides 6 and 7. The pulley 5 moves backwards along the guide 7, until it stops against the removable pin 23 placed at the other end of the guide 7, while the pulley 4 moves along the guide 6, thus obtaining, from the combination of two rectilinear orthogonal motions, the rotation of ninety degrees of the support surface 1 and its advanced repositioning, thus realizing the elongation of the seat. Advantageously, the shaped plate 20 is repositioned under the stirrups 22 with the function of anchoring the open support surface 1. The repositioning of the support surface 1 will take place by performing the operations backwards, thus, advantageously, the shaped plate 19 is repositioned under the bracket 21 with the function of anchoring the closed support surface 1.

7) Upholstered with extendable seat and backrest that can be lifted, disjointly, by translation, according to one or more of the preceding claims, characterized by the fact that the side 8 at the rear has an inverted L-shaped support 24 in suitably oriented metal tubing on which the frame is anchored U-shaped of the backrest / armrest 25, made of tubular metal, by means of the pairs of screws 26 and 27. The shaped support panel 32 for padding the backrest is screwed onto the pairs of brackets 28,29,30,31 on said frame 25 /armrest.

8) Upholstered with extendable seat and backrest that can be lifted separately, by translation, according to one or more of the preceding claims, characterized by the fact that the backrest cushion 33 has at the rear a support panel 34, consisting, for example, of a panel in wood, screwed to the U-shaped plate 35 in a metal plate of adequate size, jointed at the ends', by means of the pair of hinges 36, to a spacer plate 37 suitably shaped, at the ends of which one end of the pair of horizontal J-shaped plates is screwed 38, at the other end articulated, by means of the hinge 39, to the pair of vertical plates 40 in metal plate, integral with the frame of the backrest / armrest 25 in metal tubing. Between the U-shaped plate 35 and the shaped spacer plate 37 there is a pair of torsion springs 41, coaxial to the pair of hinges 36 and mounted on the elongated shaft of the hinges themselves, acting in the closing direction of the hinges. The hinges 36 are positioned on the U-shaped plate 35 so that the 'end' of said plate overhangs them, thus creating a lip with the function of referring to the rotation by interference with the spacer plate 37. The overturning of the back cushion 33. A further pair of traction springs 42 is hooked, on one side, to the pair of pins 43, integral with the pair of vertical plates 40 and, on the other, to the hole 44 present on the curved end of the pair of J-shaped plates 38, so as to facilitate the raising of the backrest cushion 33.

9) Upholstered with extendable seat and backrest that can be lifted, disjointly, by translation, according to one or more of the preceding claims, characterized by the fact that the raising of the backrest cushion 33 and its simultaneous translation backwards with variation of the inclination, occurs simply by pushing upwards, even when seated, the cushion itself 33 which rises and retracts, assisted by the action of the pair of traction springs 42 interposed between the J-shaped plate 38 and the shaped plate 40, stopping, raised and backward, due to the interference between the curved rear lip of the J-plate 38 and the same shaped plate 40. At the same time, the action of the pair of torsion springs 41, interposed between the U-shaped plate 35 and the shaped spacer 37, recalls the backrest cushion 33 to rest against the pair of J-shaped plates 38, thus maintaining the desired inclination, determined by the position of the pair of J-shaped plates 38.

10) Padded with extendable seat and backrest that can be lifted, separately, by translation, according to one or more of the preceding claims, characterized by the fact that the invention is applicable to each individual seating position.

11) Upholstered with extensible seat and backrest that can be lifted, separately, by translation according to one or more of the preceding claims, characterized by the fact that in the event that the seat surface overhangs, even considerably, from the load-bearing structure of the upholstery, as illustrated by way of example in fig. 7. (in which an angular composition scheme is shown) it will be sufficient to simply apply a pair of supports with wheel 45 to the protruding part of the seat surface itself, so as to obtain the simultaneous elongation of the seat surface of the three corner seats of a classic angular composition. Fig. 8 schematically represents one of the countless compositional possibilities that the invention allows to create according to its dynamic and aesthetic peculiarities.

12) Upholstered with extendable seat and backrest that can be lifted, separately, by translation, according to one or more of the preceding claims, characterized by the fact that the invention, as described above, has been proposed as a proposal purely by way of example, meaning that it may be susceptible of numerous modifications or variations, all of which fall within the scope of the present invention; by making slight or more sophisticated modifications, adjustments and tricks, it may have applications, as well as in the field of upholstery, also in other fields.

13) Padded with extendable seat and backrest that can be lifted, disjointly, by translation according to one or more of the previous claims, as described, illustrated by way of example and for the specified purposes.