EP4335325A1 - Siège coulissant pour canapé ou fauteuil, intégré à un dossier réglable - Google Patents

Siège coulissant pour canapé ou fauteuil, intégré à un dossier réglable Download PDF

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Publication number
EP4335325A1
EP4335325A1 EP23179469.4A EP23179469A EP4335325A1 EP 4335325 A1 EP4335325 A1 EP 4335325A1 EP 23179469 A EP23179469 A EP 23179469A EP 4335325 A1 EP4335325 A1 EP 4335325A1
Authority
EP
European Patent Office
Prior art keywords
frame
seat
backrest
lower half
respect
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.)
Pending
Application number
EP23179469.4A
Other languages
German (de)
English (en)
Inventor
Barbara Mati
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.)
MF International Srl
Original Assignee
MF International Srl
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 MF International Srl filed Critical MF International Srl
Publication of EP4335325A1 publication Critical patent/EP4335325A1/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • 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
    • A47C7/36—Support for the head or the back
    • A47C7/38—Support for the head or the back for the head

Definitions

  • the present invention relates to the technical field of furnishings, in particular to the field of so-called upholstered seating such as sofas or armchairs.
  • the present invention relates to an assembly consisting of an extractable sliding seat integrated with an adjustable-conformation backrest.
  • Armchairs and sofas are large, comfortable upholstered seating with a backrest and usually also with armrests or lateral sides, also generally covered with upholstery, intended to accommodate one or more persons.
  • Such articles are known to have a dual function: on the one hand, they allow people to sit in a more comfortable and relaxing manner than a chair, and on the other hand, they are furnishing elements, used to embellish and decorate a room.
  • the term "seat” refers to a seating portion arranged substantially horizontally, above which one sits, and from which the backrest and armrests elevate.
  • the "recliner” or “relax” mechanism allows the user to change the arrangement of the seating to achieve a more relaxed and more restful position, basically lying down, by reclining the backrest backward while causing the seat to move forward and the footrest to rise.
  • Such a mechanism can be operated manually by means of a leverage, or by using an electric motor built into the structure of the armchair or sofa.
  • Seating of the aforementioned type are functional only in case the user wishes to assume a "conventional" posture, that is, positioning himself or herself in the centre of the seating with the body aligned with the longitudinal axis of the seating and with the head resting on the backrest.
  • the user prefers unconventional or somehow slouched postures: in some circumstances the user prefers to have his or her head slightly elevated and bent forward, for example, in order to be able to read a book; in other cases the user prefers to assume an oblique or crooked posture with respect to the seating, for example because he or she finds such a position more restful or in case he or she wishes to look towards a television screen or towards a person who is not directly in front of him or her, etc.
  • adjustable backrests have, in their upper portion, at least two independent movable elements, hinged to the top of a fixed frame, the latter being integral with the supporting structure of the seating itself.
  • An example of such a backrest is described in Italian patent no. 1417233 in which two independent movable elements allow the inclination of the upper right and upper left portions of the backrest to be adjusted separately from the fixed lower portion.
  • sliding seat or " extractable seat” mean a seat of the type commonly implemented in reclining armchairs and sofas equipped with a “recliner” or “relax” mechanism, i.e., a seat including an upper frame that slides with respect to a fixed lower frame resting on the ground.
  • the object of the present invention is to combine the advantages of an extractable sliding seat, typical of sofas and armchairs equipped with a "recliner” or “relax” mechanism, with the advantages of a backrest with an adjustable conformation.
  • the present invention allows both to change the arrangement of the seating, by reclining the backrest and translating the seat forward in order to assume a substantially lying position, and to change the conformation of the backrest, particularly by adjusting the inclination of the upper left portion independently of the upper right portion.
  • the object of the present invention is to provide an assembly of a seat and a backrest for upholstered seating, whose configuration can be modified by the user with the aim of better adapting it to the position he or she wishes to assume or even just for ornamental purposes, by changing the position and inclination of the seat and backrest, as well as the shape of the backrest itself.
  • a further object of the present invention is to provide a seat-backrest assembly for upholstered seating that is extremely versatile and adaptable and also simple and inexpensive to produce.
  • Not the least of the objects of the present invention is to provide a seat-backrest assembly for upholstered seating that is functional, quick, and extremely easy to adjust for any type of user.
  • an assembly consisting of an extractable sliding seat and an adjustable-conformation backrest, intended to form an integrated part of upholstered seating such as sofas or armchairs.
  • the seat object of the present invention includes an upper movable frame slidingly connected to a lower fixed frame resting on the ground.
  • the adjustable-conformation backrest includes a lower half-frame and an upper half-frame including at least two upper movable elements, each one rotationally connected to the lower half-frame of the backrest.
  • the lower half-frame of the backrest is rotationally connected to the rear portion of the upper movable frame of the seat.
  • the upper movable elements can be of various shapes and preferably, but not exclusively, have a planar conformation, suitable to be accommodated within the seating backrest.
  • Each of these movable elements includes a parallelepiped batten connected to the underlying lower half-frame by means of two articulated arms, or a suitably shaped tubular metal frame.
  • the movable elements are rotationally connected to the upper portion of the lower half-frame, according to axes of rotation substantially parallel to the transverse axis of the seat.
  • Each movable element is connected to the lower half-frame of the backrest, independently of the other movable elements, by known connecting means such as joints, hinges, pivots and the like.
  • Movable elements can be at least partially made of flexible or deformable materials, in which case the movable elements can be made integral with the upper portion of the lower half-frame, without employing joints or other connecting means.
  • the movable seat frame, the lower half-frame of the backrest, and the fixed seat frame are connected to each other by an articulated kinematic mechanism that allows the forward translation of the movable seat frame with respect to the fixed frame and simultaneously causes the backward inclination of the lower half-frame of the backrest with respect to the movable seat frame.
  • This kinematic mechanism allows the seat-backrest assembly to assume two different main configurations: a reclined position, suitable in case the user wants to assume a lying supine posture, and a sitting position, suitable in case the user simply wants to sit on the seat.
  • the movable seat frame In the reclined position, the movable seat frame is translated forward and protrudes from the front edge of the underlying fixed frame, while the lower half-frame of the backrest is inclined backward, forming an angle greater than 90° with respect to the movable seat frame.
  • the movable frame In the sitting position, on the other hand, the movable frame is retracted and does not protrude from the edge of the fixed lower frame, while the lower half-frame of the backrest is arranged in an essentially vertical plane forming an angle of about 90°, or however slightly more than a right angle, with respect to the movable seat frame.
  • the lower portion of the backrest is rotationally connected to the upper movable frame of the sliding seat and not to the fixed supporting structure of the seat instead.
  • This allows the user both to recline the seating to assume a lying posture and at the same time to shape the upper portion of the backrest to his or her liking by adjusting the movable elements, so the user is offered the possibility of configuring the seating in a much greater number of different conformations and positions than those made available by known state-of-the-art seating, thus increasing the comfort and adaptability of the seating.
  • the seat and backrest normally include an outer covering; the backrest is also complemented by a padding of soft material that covers the lower half-frame and the upper movable elements.
  • the seat can integrate an extractable footrest, placed on the front side of the seat and connected with the aforementioned movable frame through the same above-mentioned kinematic mechanism.
  • the footrest unfolds, translating forward and raising up, simultaneously with the forward translation of the movable seat frame, when the seat-backrest assembly is arranged from the sitting to the reclined position.
  • the assembly object of the present invention includes an extractable seat (1) for upholstered seating, in particular armchairs and sofas, integrated with an adjustable-conformation backrest (2).
  • the lower portion of said backrest (2) is connected, not integrally, but by means of a kinematic mechanism (3), to the rear portion of the sliding element of said extractable seat (1); the same kinematic mechanism (3) also connects the sliding element of the seat (1) to the fixed element of the seat (1) itself.
  • the seat (1) comprises a lower fixed frame (11) and an upper movable frame (12) slidable with respect to said fixed frame (11), the latter being provided below with means for resting on the ground.
  • the upper movable frame (12) is capable of translating with respect to the lower fixed frame (11) by passing from a fully retracted position, in which said movable frame (12) does not protrude with respect to the outline of the underlying fixed frame (11), to a fully extracted position, in which said movable frame (12) projects with respect to the front edge of said fixed frame (11).
  • the upper movable frame (12) moves forward, it also rotates slightly upward, so that when the upper frame (12) is in the fully extracted position, its front portion is slightly higher than the rear portion.
  • the backrest (2) comprises a lower half-frame (21) and two upper movable elements (22), each of which is hinged, independently of the other, to the upper portion of the lower half-frame (21).
  • Each of said upper movable elements (22) rotates according to an axis substantially parallel to the transverse axis of the seat (1).
  • the latter is connected to the rear portion of the movable frame (12) of said seat (1) by means of the aforementioned kinematic mechanism (3), which causes the lower half-frame (21) to rotate backward, that is, progressively increasing the width of the angle between the seat (1) and the lower half-frame (21), as the movable frame (12) of the seat (1) is translated forward with respect to the fixed frame (11).
  • said kinematic mechanism (3) consists of a system of mechanical elements connected by joints and articulated connections that enable motion to be transmitted among the different parts of the mechanism, also converting the rectilinear motion of one element into a circular motion of a second element.
  • the kinematic mechanism (3) is integrally connected to the lower fixed frame (11) of the seat (1) and is associated with both the movable frame (12) of the seat (1) itself and the lower half-frame (21) of the backrest (2) by means of connecting means which allow the forward translation of the movable frame (12) with respect to the fixed frame (11) simultaneously causing the backward rotation of the lower half-frame (21) of the backrest (2) with respect to the movable frame (12) of the seat (1); said rotation is carried out according to an axis substantially parallel to the transverse axis of the seat (1).
  • the seat-backrest assembly can be configured according to two different basic positions: a fully reclined position, suitable in case the user wants to assume a lying supine posture, and a sitting position, suitable in case the user wants to simply sit on top of the seat.
  • the movable frame (12) of the seat (1) In the reclined position, the movable frame (12) of the seat (1) is translated forward and protrudes from the front edge of the underlying fixed frame (11), while the lower half-frame (21) of the backrest (2) is inclined backward, forming an angle larger than 90° with respect to said movable frame (12) of the seat (1).
  • the movable frame (12) In the sitting position, the movable frame (12), on the other hand, is retracted and does not protrude from the edge of the underlying fixed frame (11), while the lower half-frame (21) of the backrest (2) is arranged in an essentially vertical plane forming an angle of about 90°, or however slightly more than a right angle, with respect to the movable frame (12) of the seat (1).
  • each upper movable element (22) is composed of an elongated element (222) of essentially parallelepiped shape connected to the underlying lower half-frame (21) of the backrest (2) by means of a pair of articulated arms (221).
  • Each articulated arm (221) is composed of an upper half-arm, integrally connected with a respective lateral side of the aforementioned elongated element (222), and a lower half-arm, integral with the lower half-frame (21) of the backrest (2) and connected to the upper half-arm by means of a joint (223) allowing the mutual rotation of the two half-arms around an axis substantially parallel to the transverse axis of the seat.
  • said elongated element (222) is a parallelepiped-shaped batten; in a possible alternative embodiment said elongated element (222) is a hollow tubular profile with a rectangular cross-section.
  • the joint (223) preferably includes an automatic friction mechanism which allows the mutual rotation of the two half-arms composing each articulated arm (221) only when a predetermined value of torque is exceeded; the automatic friction mechanism can then be disengaged simply by applying to the upper movable element (22) a stress sufficient to overcome this limiting torque, while in the case of stresses arising from the body resting on the upper movable element (22) such mechanism remains engaged, preventing any rotation of the upper movable element (22).
  • other means of known type can be implemented to control the rotation of the articulated arms (221), either of manual or automatic or motorized type.
  • each of said upper movable elements (22) can rotate independently of the other movable element (22) by an angle of 180° or more; in Figure 4 , a first upper movable element (22) is arranged in a substantially vertical plane, aligned with the lower half-frame (21) of the backrest, while a second movable element (22) is arranged in a substantially horizontal plane, forming an angle of about 90° with respect to the first upper movable element (22).
  • the two upper movable elements (22) are connected on the upper side by a band (23) of flexible, elastically deformable material that wraps both elongated elements (222) and deforms adapting itself to the different angular configurations of the two upper movable elements (22).
  • the backrest (2) is complemented by a padding of soft, yielding material covering the lower half-frame (21), the upper movable elements (22), and the band (23); a covering wraps this padding externally.
  • the seat (1) is also complemented by an outer covering and, preferably but not exclusively, by a padding, the latter covering at least superiorly the movable frame (12).
  • an armchair or sofa comprising the seat-backrest assembly object of the present invention may further comprise side armrests and one or more cushions.
  • the seat-backrest assembly object of the present invention further includes an extractable footrest (4) whose unfolding is controlled by the same kinematic mechanism (3) connecting the lower half-frame (21) of the backrest (2), the movable frame (12) of the seat (1) and the fixed frame (11) of the seat (1) itself.
  • the translation of the movable frame (12) of the seat (1) from the retracted position to the extracted position also causes the footrest (4) to unfold, which translates and rotates from a rest position, in which it is arranged vertically adjacent to the front side of the seat (1), to a fully extracted position, in which it is arranged in front of the seat (1) on a nearly horizontal plane, at approximately the same height from the ground of the front portion of the seat (1) itself.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP23179469.4A 2022-09-06 2023-06-15 Siège coulissant pour canapé ou fauteuil, intégré à un dossier réglable Pending EP4335325A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT202200018216 2022-09-06

Publications (1)

Publication Number Publication Date
EP4335325A1 true EP4335325A1 (fr) 2024-03-13

Family

ID=84360032

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Application Number Title Priority Date Filing Date
EP23179469.4A Pending EP4335325A1 (fr) 2022-09-06 2023-06-15 Siège coulissant pour canapé ou fauteuil, intégré à un dossier réglable

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EP (1) EP4335325A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008028623A1 (de) * 2008-06-18 2009-12-24 Stanzwerk Wetter Sichelschmidt Gmbh & Co. Kg Sitzmöbel
WO2012053022A1 (fr) * 2010-10-19 2012-04-26 Iacobucci Hf Electronics S.P.A Siège inclinable
WO2013061259A1 (fr) * 2011-10-26 2013-05-02 Natuzzi S.P.A. Dispositif permettant le mouvement de composants de repos d'un canapé, d'une chaise et analogues
WO2014162292A1 (fr) * 2013-04-05 2014-10-09 Edra S.P.A. Pièce présentant une configuration réglable afin de réaliser des accoudoirs ou des dossiers pour des sièges

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008028623A1 (de) * 2008-06-18 2009-12-24 Stanzwerk Wetter Sichelschmidt Gmbh & Co. Kg Sitzmöbel
WO2012053022A1 (fr) * 2010-10-19 2012-04-26 Iacobucci Hf Electronics S.P.A Siège inclinable
WO2013061259A1 (fr) * 2011-10-26 2013-05-02 Natuzzi S.P.A. Dispositif permettant le mouvement de composants de repos d'un canapé, d'une chaise et analogues
WO2014162292A1 (fr) * 2013-04-05 2014-10-09 Edra S.P.A. Pièce présentant une configuration réglable afin de réaliser des accoudoirs ou des dossiers pour des sièges

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