ES2706518T3 - Mechanism of movement to move pieces of a sofa or reclining chair - Google Patents
Mechanism of movement to move pieces of a sofa or reclining chair Download PDFInfo
- Publication number
- ES2706518T3 ES2706518T3 ES16196494T ES16196494T ES2706518T3 ES 2706518 T3 ES2706518 T3 ES 2706518T3 ES 16196494 T ES16196494 T ES 16196494T ES 16196494 T ES16196494 T ES 16196494T ES 2706518 T3 ES2706518 T3 ES 2706518T3
- Authority
- ES
- Spain
- Prior art keywords
- upholstered furniture
- reclining
- mechanism according
- pair
- plates
- 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
Links
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
-
- 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
- A47C1/035—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest
- A47C1/0352—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest characterised by coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
Mecanismo de movimiento (M) para mover las piezas móviles (SE) de un mobiliario tapizado reclinable (MI), que comprende primeros medios de accionamiento (1, 2) provistos de al menos un grupo (1, 2) de componentes telescópicos extensibles (C1, C2) adaptados para soportar y mover al menos una de dichas piezas (SE) de dicho mobiliario tapizado reclinable (MI) entre una posición de cierre (PC) y una posición de extensión (PE) y segundos medios de accionamiento (7, 10, 13, 14) para accionar dichos componentes telescópicos extensibles (C1, C2); caracterizado por que dichos componentes telescópicos extensibles (C1, C2) comprenden una primera pareja (C1) de elementos perfilados (11, 11') adaptados para encerrar un miembro accionador (7) de dichos medios de accionamiento (7, 10, 13, 14), y una segunda pareja (C2) de placas (17, 17') adaptadas para encerrar un cuerpo central (10) de dicho miembro accionador (7).Movement mechanism (M) for moving the moving parts (SE) of a reclining upholstered furniture (MI), comprising first drive means (1, 2) provided with at least one group (1, 2) of extensible telescopic components ( C1, C2) adapted to support and move at least one of said pieces (SE) of said reclining upholstered furniture (MI) between a closing position (PC) and an extension position (PE) and second actuation means (7, 10, 13, 14) to operate said extensible telescopic components (C1, C2); characterized in that said extensible telescopic components (C1, C2) comprise a first pair (C1) of profiled elements (11, 11 ') adapted to enclose an actuating member (7) of said actuating means (7, 10, 13, 14 ), and a second pair (C2) of plates (17, 17 ') adapted to enclose a central body (10) of said actuating member (7).
Description
DESCRIPCIÓNDESCRIPTION
Mecanismo de movimiento para mover piezas de un sofá o silla reclinableMechanism of movement to move pieces of a sofa or reclining chair
La presente invención está relacionada con un mecanismo de movimiento.The present invention is related to a movement mechanism.
La presente invención se usa ventajosamente en el campo de mobiliario tapizado y es aplicable en silla reclinable o en un sofá con al menos un lugar reclinable, para mover piezas móviles, en particular el asiento del citado sillón o sofá reclinables, o incluso reposapiés, respaldos y similares, a los que la siguiente descripción hará referencia explícita sin de ese modo perder generalidad.The present invention is advantageously used in the field of upholstered furniture and is applicable in reclining chair or on a sofa with at least one reclining place, to move moving parts, in particular the seat of said reclining chair or sofa, or even footrest, backrests and the like, to which the following description will make explicit reference without thereby losing generality.
Generalmente, en la industria de mobiliario tapizado se conocen mecanismos para el movimiento de piezas móviles de una silla o un sofá reclinables definidos por palancas abisagradas articuladas tipo cuadrilátero para mover dichas piezas movibles entre una posición de cierre reclinada y una posición de apertura de máxima extensión adaptada para realizar una configuración de la silla o sofá conocida como posición de "relax".Generally, in the upholstered furniture industry, mechanisms are known for moving moving parts of a reclining chair or sofa defined by articulated, quadrilateral hinged levers to move said movable parts between a reclined closing position and a maximum extension opening position. adapted to perform a configuration of the chair or sofa known as the "relax" position.
Actualmente dichos mecanismos articulados hechos de material metálico son muy voluminosos, y están sometidos a fácil desgaste.Currently said articulated mechanisms made of metallic material are very bulky, and are subject to easy wear.
Adicionalmente, la palanca abisagrada y horquillas articuladas provocan problemas de seguridad relacionados con el peligro de cizalladura y corte: a fin de resolver estos problemas, el tapizado de la silla o sofá debe ingeniarse para que cubra el mecanismo e impedir que personas y mascotas se puedan dañar.Additionally, the hinged lever and articulated forks cause safety problems related to the danger of shearing and cutting: in order to solve these problems, the upholstery of the chair or sofa must be designed to cover the mechanism and prevent people and pets from being able to to damage.
Este requisito de seguridad requiere la construcción de estructuras tapizadas estéticamente forzadas y pesadas porque tienen que cubrir el mecanismo.This safety requirement requires the construction of aesthetically forced and heavy upholstered structures because they have to cover the mechanism.
Además, las formas de dichos mecanismos a menudo no son satisfactorias desde el punto de vista estético, y no se integran bien con los rasgos de diseño de los sillones o sofás que soportan dichos mecanismos.Furthermore, the shapes of such mechanisms are often unsatisfactory from the aesthetic point of view, and do not integrate well with the design features of the armchairs or sofas that support said mechanisms.
Un ejemplo de un mecanismo de movimiento se describe en el documento DE202006018505 U1.An example of a movement mechanism is described in document DE202006018505 U1.
La finalidad de la presente invención es por lo tanto proporcionar un mecanismo de movimiento que esté libre de los inconvenientes de la técnica anterior especificados anteriormente.The purpose of the present invention is therefore to provide a movement mechanism that is free from the drawbacks of the prior art specified above.
En particular, la intención de la presente invención es proporcionar un mecanismo de movimiento eficiente y duradero, para reducir drásticamente la posibilidad de desgaste y rotura durante operación funcional, así como problemas de seguridad de usuarios.In particular, the intention of the present invention is to provide an efficient and durable movement mechanism, to drastically reduce the possibility of wear and tear during functional operation, as well as user safety issues.
Un objeto adicional de la presente invención es proporcionar un mecanismo de movimiento que se integre perfectamente y óptimamente con las formas estéticas de los diseños de sillones o sofás.A further object of the present invention is to provide a movement mechanism that integrates perfectly and optimally with the aesthetic forms of the designs of armchairs or sofas.
La invención se define en la reivindicación 1.The invention is defined in claim 1.
Las características estructurales y funcionales de la presente invención y sus ventajas se volverán incluso más caras y evidentes a partir de las reivindicaciones subyacentes, y en particular de un examen de la descripción que sigue, haciendo referencia a las figuras adjuntas, que muestran una realización preferida pero no limitativa del mecanismo en objeto, en el que:The structural and functional features of the present invention and their advantages will become even more expensive and apparent from the underlying claims, and in particular from an examination of the following description, with reference to the accompanying figures, which show a preferred embodiment but not limiting the mechanism in object, in which:
- la figura 1 muestra una vista esquemática en perspectiva que ejemplifica una estructura de bastidor de un mecanismo reclinable que soporta el mecanismo en objeto y en una posición de funcionamiento cerrada;Figure 1 shows a schematic perspective view exemplifying a frame structure of a reclining mechanism that supports the mechanism in object and in a closed operating position;
- la figura 2 muestra una vista esquemática en perspectiva en despiece ordenado y en escala agrandada de una realización preferida del mecanismo de movimiento en objeto;Figure 2 shows a schematic exploded perspective view and enlarged scale of a preferred embodiment of the object movement mechanism;
- la figura 3 muestra una vista esquemática en perspectiva en despiece ordenado y en escala agrandada de algunos componentes del mecanismo de la figura 1;Figure 3 shows a schematic exploded perspective view and enlarged scale of some components of the mechanism of Figure 1;
- la figura 4 muestra una vista esquemática en perspectiva en despiece ordenado y en escala agrandada de algunos componentes del mecanismo de la figura 3;- figure 4 shows a schematic exploded perspective view and enlarged scale of some components of the mechanism of figure 3;
las figuras 5a, 5b y 5c muestran vistas esquemáticas laterales respectivas de tres posiciones diferentes de funcionamiento del mecanismo de la presente invención e ilustrado en las figuras 2 a 4.Figures 5a, 5b and 5c show respective side schematic views of three different operating positions of the mechanism of the present invention and illustrated in Figures 2 to 4.
Con referencia a la figura 1, con T se indica generalmente una estructura de bastidor (tronco) de un tapizado de mecanismo reclinable móvil MI, tal como una silla o sofá reclinables con piezas movibles, dicho bastidor T, también provisto de reposabrazos (conocido y no se muestra), se adapta para llevar montado un mecanismo de movimiento M según la presente invención para mover en particular el asiento tapizado SE (también se incluye reposapiés) del tapizado de mecanismo reclinable móvil MI. With reference to Figure 1, with T is generally indicated a frame structure (trunk) of an upholstery of mobile reclining mechanism MI, such as a reclining chair or sofa with movable parts, said frame T, also provided with armrests (known and not shown), it is adapted to carry mounted a movement mechanism M according to the present invention to move in particular the upholstered seat SE (footrest is also included) of the upholstery of mobile reclining mechanism MI.
El mecanismo M es de componentes tipo extensible con modo telescópico y comprende, preferiblemente pero sin limitación, dos grupos de movimiento 1 y 2 acoplados al bastidor T, en particular un grupo 1 montado en un lado L1 del bastidor T y el otro grupo 2 montado en un lado opuesto L2 del bastidor T, luego con forma especular.The mechanism M is of extensible type components with telescopic mode and comprises, preferably but without limitation, two groups of movement 1 and 2 coupled to the frame T, in particular a group 1 mounted on one side L1 of the frame T and the other group 2 mounted on an opposite side L2 of the frame T, then with specular shape.
Como se muestra en la figura 2, cada grupo 1, 2 comprende una pareja 3 de elementos perfilados 4 y 4' adaptados para formarse para tener, cada uno, en correspondencia de una superficie interior Si, de alojamientos huecos curvilíneos 5 y 6.As shown in Figure 2, each group 1, 2 comprises a pair 3 of profiled elements 4 and 4 'adapted to be formed to have, each one, in correspondence of an inner surface Si, of curvilinear hollow spaces 5 and 6.
Los elementos 4 y 4' se acoplan en el lado opuesto lateralmente al miembro accionador 7 proporcionado con rodillos rotatorios libremente 8 y 9 y para que sobresalgan a ambos lados del mismo miembro accionador 7, de modo que dichos rodillos 8 y 9 van a ser insertados dentro de los respectivos alojamientos 5 y 6 de cada elemento 4 y 4' para deslizar, en uso, dentro de los mismos asientos 5.The elements 4 and 4 'are coupled on the opposite side laterally to the actuating member 7 provided with freely rotating rollers 8 and 9 and so that they protrude on both sides of the same actuating member 7, so that said rollers 8 and 9 are to be inserted within the respective housings 5 and 6 of each element 4 and 4 'to slide, in use, within the same seats 5.
Como se muestra más claramente en la figura 3, el miembro accionador 7 comprende un accionador de cuerpo central 10 acoplado y cerrado lateralmente por dos elementos perfilados 11 y 11' que soportan externamente los rodillos 8 y 9 y que definen una pareja de elementos C1.As shown more clearly in Figure 3, the actuator member 7 comprises a central body actuator 10 coupled and laterally closed by two profiled elements 11 and 11 'which externally support the rollers 8 and 9 and which define a pair of elements C1.
Los dos elementos 11 y 11' de la pareja C1 se forman para tener, cada uno, en correspondencia con su propia superficie interior Sii, un alojamiento hueco curvilíneo 12.The two elements 11 and 11 'of the pair C1 are formed to have, each one, in correspondence with its own inner surface Sii, a curvilinear hollow housing 12.
Como se muestra más claramente en la figura 4, el cuerpo de accionador 10 es de tipo lineal y comprende un elemento de vástago roscado 13 conectado a un motor eléctrico de impulsión 14 para mover dicho elemento 13, en dirección de rotación en sentido horario o, como alternativa, en una dirección opuesta en sentido antihorario, para llevar un bloque 15, provisto de un pasador 16 que sobresale de ambos lados de dicho bloque 15 y desliza sobre dicho elemento 13, para que deslice acercándose y alejándose del motor eléctrico 14 en el cuerpo central 10. El cuerpo central 10 es cerrado lateralmente por una pareja c 2 de placas 17, 17', cada una de dichas placas 17, 17' monta en un extremo libre 18, 19 un elemento de brazo pivotable 20, 21 que soporta una pareja 22, 23 de elementos, preferiblemente pero sin limitación rodillos R1 y R2 rodillos para soportar un reposapiés abrible (no se muestra), mientras el extremo opuesto 24, 25 con respecto al extremo 18, 19 cada placa 17, 17' se provee de un alojamiento hueco 26, 27 dispuesto transversalmente con respecto a la placa 17, 17' respectiva.As shown more clearly in Figure 4, the actuator body 10 is of the linear type and comprises a threaded rod element 13 connected to an electric drive motor 14 for moving said element 13, in the direction of rotation in the clockwise direction or, alternatively, in a counterclockwise opposite direction, to carry a block 15, provided with a pin 16 protruding from both sides of said block 15 and sliding on said element 13, so that it slides towards and away from the electric motor 14 in the central body 10. The central body 10 is closed laterally by a pair c 2 of plates 17, 17 ', each of said plates 17, 17' mounts on a free end 18, 19 a pivotable arm element 20, 21 that supports a pair 22, 23 of elements, preferably but not limited to rollers R1 and R2 rollers for supporting an openable footrest (not shown), while the opposite end 24, 25 with respect to the end 18, 19 each plate 17, 17 'is it provides a hollow housing 26, 27 arranged transversely with respect to the respective plate 17, 17 '.
Cada alojamiento 26, 27 se adapta para ser acoplado por una parte respectiva del pasador 16 que sobresale del bloque 15 para mover hacia delante o hacia atrás las placas 17, y 17' de la pareja C2.Each housing 26, 27 is adapted to be engaged by a respective portion of the pin 16 projecting from the block 15 to move the plates 17, 17 'of the pair C2 forward or backward.
Como se muestra en las figuras 5a a 5c, en uso, el mecanismo M así estructurado, con las superficies superiores de los elementos 4, 4' y 11, 11' que soportan el mencionado asiento SE g del móvil reclinable MI y bajo el empuje del motor eléctrico 14 manejado adecuadamente por un usuario del móvil MI, se adapta para mover el propio asiento SE entre una posición de cierre PC (figura 5a), que corresponde al busto del usuario sustancialmente erecto, y una posición de extensión abierta PE, y luego se reclina (figura 5c) conocido como "relax", que pasa a través de una posición sustancialmente intermedia PI (figura 5b) extendida únicamente de manera parcial.As shown in FIGS. 5 a to 5 c, in use, the mechanism M thus structured, with the upper surfaces of the elements 4, 4 'and 11, 11' supporting said seat SE of the mobile recliner MI and under the thrust of the electric motor 14 suitably operated by a user of the mobile MI, is adapted to move the seat SE itself between a closed position PC (figure 5a), which corresponds to the bust of the user substantially erect, and an open extension position PE, and it then reclines (figure 5c) known as "relax", which passes through a substantially intermediate position PI (figure 5b) extended only partially.
En otras palabras, al controlar la impulsión del motor 14 que activa el miembro accionador 7, se obtiene en primer lugar el movimiento progresivo de los elementos 11, 11' de la pareja C1 hasta una configuración de extensión máxima de los mismos elementos 11, 11' en dicha posición intermedia PI, luego gradualmente el movimiento de las placas 17, 17' de la pareja C2 hasta una configuración de máxima extensión de los mismos elementos 17, 17' en la posición de extensión PE mencionada anteriormente, y viceversa para devolver el asiento SE a la posición de cierre PC.In other words, by controlling the drive of the motor 14 which activates the actuator member 7, the progressive movement of the elements 11, 11 'of the couple C1 to a configuration of maximum extension of the same elements 11, 11 is obtained first of all. 'in said intermediate position PI, then gradually the movement of the plates 17, 17' of the pair C2 to a configuration of maximum extension of the same elements 17, 17 'in the position of extension PE mentioned above, and vice versa to return the SE seat to the PC closing position.
Cabe señalar que, en correspondencia de la citada posición de extensión PE, el reposapiés mencionado anteriormente se puede rotar hacia arriba alrededor del eje de R2 para de ese modo aumentar aún más la extensión del asiento SE del mobiliario tapizado MI.It should be noted that, in correspondence with said extension position PE, the footrest mentioned above can be rotated upwards around the axis of R2 to thereby further increase the extension of the seat SE of the upholstered furniture MI.
Al cuerpo central 10 también se conecta mecánicamente, a través de un pasador 29 del mismo cuerpo central 10, un elemento conocido abisagrado tipo barra 28 (figura 2 y figuras 5a - 5c) adaptado para soportar, de una manera conocida y no ilustrada, un respaldo (también conocido y no ilustrado) de tal manera que las citadas posiciones PC y PE corresponden a un movimiento similar del respaldo concordante con la del asiento SE, es decir, con el elemento 28 que varía su inclinación permitiendo al respaldo conectado a él reclinarse hacia atrás, simultáneamente a la extensión del asiento SE o únicamente más tarde para permitir obtener la posición llamada de "TV" (piernas del usuario arriba y busto erecto para ver una pantalla de TV).The central body 10 is also connected mechanically, through a pin 29 of the same central body 10, a known element hinged bar type 28 (Figure 2 and Figures 5a-5c) adapted to support, in a known manner and not illustrated, a backrest (also known and not illustrated) in such a way that the mentioned positions PC and PE correspond to a similar movement of the backrest concordant with that of the seat SE, that is to say, with the element 28 that varies its inclination allowing the backrest connected to it to recline backwards, simultaneously to the extension of the SE seat or only later to allow obtaining the so-called "TV" position (user's legs up and erect bust to see a TV screen).
Todas las piezas del mecanismo M descrito anteriormente, con la excepción del elemento de vástago 13 hecho de acero o equivalente, pueden ser implementadas ventajosamente en diversos tipos de material, también no metálicas tales como plástico, teflón, diversos materiales compuestos tales como fibra de carbono o equivalente, para asegurar resistencia y excelente durabilidad y dando al mismo tiempo ligereza y fiabilidad. All parts of the mechanism M described above, with the exception of the stem element 13 made of steel or equivalent, can be advantageously implemented in various types of material, also non-metallic such as plastic, Teflon, various composite materials such as carbon fiber or equivalent, to ensure strength and excellent durability while giving lightness and reliability.
Claims (8)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15192435 | 2015-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2706518T3 true ES2706518T3 (en) | 2019-03-29 |
Family
ID=57288145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES16196494T Active ES2706518T3 (en) | 2015-10-30 | 2016-10-30 | Mechanism of movement to move pieces of a sofa or reclining chair |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3167762B1 (en) |
| ES (1) | ES2706518T3 (en) |
| PL (1) | PL3167762T3 (en) |
| PT (1) | PT3167762T (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4007720B1 (en) * | 2019-07-31 | 2024-08-28 | Safran Seats USA LLC | Cradling passenger seat assembly |
| US11825959B1 (en) | 2022-09-29 | 2023-11-28 | Benjamin Sorbin | Attachment for recliner chair |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202006018505U1 (en) * | 2006-12-05 | 2008-04-17 | Dewert Antriebs- Und Systemtechnik Gmbh | Electromotive linear drive |
| ITRM20110166U1 (en) * | 2011-10-26 | 2013-04-27 | Natuzzi Spa | DEVICE STRUCTURE FOR THE HANDLING OF SUPPORTING COMPONENTS OF A SOFA, AN ARMCHAIR OR SIMILAR |
| US9635943B2 (en) * | 2014-03-28 | 2017-05-02 | L&P Property Management Company | Wall-proximity reclining mechanism with consistent-height seat |
-
2016
- 2016-10-30 ES ES16196494T patent/ES2706518T3/en active Active
- 2016-10-30 EP EP16196494.5A patent/EP3167762B1/en active Active
- 2016-10-30 PL PL16196494T patent/PL3167762T3/en unknown
- 2016-10-30 PT PT16196494T patent/PT3167762T/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP3167762A1 (en) | 2017-05-17 |
| EP3167762B1 (en) | 2018-10-17 |
| PT3167762T (en) | 2019-01-28 |
| PL3167762T3 (en) | 2019-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2881470T3 (en) | Adjustable furniture | |
| AU2019201565B2 (en) | Furniture Member With Powered Mechanism Providing Lift And Zero Gravity Positions | |
| ES2653934T3 (en) | Furniture item mechanism | |
| ES2556609T3 (en) | Enhanced compatibility for a link mechanism | |
| ES2957138T3 (en) | Sitting furniture with swing function with two motors | |
| TR201604021A2 (en) | VEHICLE SEAT WITH EXTENSIBLE SUPPORT AND THIGH SUPPORT | |
| ES2706518T3 (en) | Mechanism of movement to move pieces of a sofa or reclining chair | |
| CA2857617C (en) | Covered leg rest linkage for furniture member | |
| US10952535B2 (en) | Furniture member having lumbar adjustment mechanism | |
| TR201815359T4 (en) | Improved configurable car seat. | |
| KR20190041205A (en) | Medical bed having arm rests | |
| KR101492896B1 (en) | A sliding chair | |
| CA2857616C (en) | Furniture member with center support leg rest | |
| BR102015025314A2 (en) | REAR SEATING PAD WITH JOINT IN POINT H | |
| EP2465384B1 (en) | An armchair convertible into a chaise longue | |
| JP2010162337A (en) | Chair | |
| TW201332488A (en) | Backrest inclination structure for lumbar support | |
| KR101332823B1 (en) | Chair with variable waist supporter | |
| WO2011067968A1 (en) | Chair | |
| TWM501781U (en) | Height and inclination angle adjustment device for sofa back | |
| ITMC20090078A1 (en) | ARMCHAIR EQUIPPED WITH A MOTORIZED TILTING BACKREST | |
| JP2019150217A (en) | Standing auxiliary chair | |
| BRPI0405507B1 (en) | armchair and / or sofa bed improvement | |
| PL242233B1 (en) | Movable seat | |
| ITMI20010048A1 (en) | SOFA BED SOFA OR TRANSFORMABLE ARMCHAIR |