EP4387491A1 - Siège à fonction inclinable protège-mur à moteur unique et comprenant un mécanisme de réglage de dossier à rotation - Google Patents

Siège à fonction inclinable protège-mur à moteur unique et comprenant un mécanisme de réglage de dossier à rotation

Info

Publication number
EP4387491A1
EP4387491A1 EP22797644.6A EP22797644A EP4387491A1 EP 4387491 A1 EP4387491 A1 EP 4387491A1 EP 22797644 A EP22797644 A EP 22797644A EP 4387491 A1 EP4387491 A1 EP 4387491A1
Authority
EP
European Patent Office
Prior art keywords
lever
seating furniture
chassis
displacement unit
articulated
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
EP22797644.6A
Other languages
German (de)
English (en)
Inventor
Michael Schuster
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.)
M Schuster Patentverwertungs GmbH
Original Assignee
M Schuster Patentverwertungs 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 M Schuster Patentverwertungs GmbH filed Critical M Schuster Patentverwertungs GmbH
Publication of EP4387491A1 publication Critical patent/EP4387491A1/fr
Pending legal-status Critical Current

Links

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
    • A47C1/035—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
    • A47C1/0355—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 actuated by linkages, e.g. lazy-tongs mechanisms

Definitions

  • the invention relates to seating furniture with a chassis, a seat part that can be pivoted in terms of inclination, a back part that is articulated on the seat part, and a swing-out foot part, the seating furniture being adjustable between an upright seating position and a lying position, for which purpose the seat part is used to adjust the seating furniture into a lying position moved forward relative to the chassis.
  • the present invention relates to seating furniture in which the back part can be swiveled without a wall and which is therefore also colloquially referred to as “sofa with wallaway function”. This means that when swiveling into a reclining position, the back part moves forward together with the seat part relative to the chassis, so that the back part does not or only slightly protrudes beyond the rear edge of the chair in any swiveling position.
  • Seating furniture is known from the publications DE202016104352U1 and EP3311700A1 which, in addition to such a wallaway function, also has a floor-free design with a footrest that is swiveled in approximately parallel below the seat section and a slim design in the front seat area.
  • the adjustment of the seat, back and foot sections can be carried out by means of just one linear actuator.
  • the back mechanism provided for pivoting the back part is articulated with at least one lever on the chassis and this articulation point remains in an area behind the back part when the seat and back parts are moved forwards, as a result it is necessary for aesthetic reasons to cover this area located between the back part and the rear edge of the chair with upholstery.
  • the invention is based on the object of further developing a piece of seating furniture with a wall-away function and a floor-free design such that, when using only one linear actuator to adjust the seat part, the back part and the foot part, there is creative freedom for the upholstery Design can be made available in the backrest area and thus the aesthetics of the seating furniture is improved.
  • the seat part is displaced forwards relative to the chassis during the adjustment of the seating furniture item from the upright seating position to the lying position via two displacement units attached to one another.
  • One of the displacement units is formed by a lever adjustment mechanism and has at least one chassis lever articulated on the chassis according to the invention is coupled via a first connecting lever to a rotary lever articulated on the seat part, a second connecting lever being connected on the one hand to the rotary lever and on the other hand to the back part.
  • the back mechanism of the chair according to the invention formed by the rotary lever, the second connecting lever and the back piece articulated on the seat part, is thus designed to “run along” with all the mechanism parts with the seat piece, and not, as is known in the case of the generic chair, articulated with at least one lever on the chassis.
  • FIG. 1 shows a piece of furniture according to the invention in the seating position of the piece of furniture
  • FIG. 2 shows the piece of furniture according to the invention with the seat part adjusted in inclination and the foot part swiveled out;
  • FIG. 3 shows the piece of seating furniture according to the invention according to FIG. 2, in a detailed view with the seat part hidden;
  • FIG. 4 shows the piece of seating furniture according to the invention according to FIG. 2, in a detailed partial view
  • FIG 5 shows the seating furniture according to the invention in the lying position of the seating furniture.
  • the seating furniture 1 consists of a chassis 5, a seat part 3, a back part 4 articulated on the seat part 3 and a swing-out foot part 6, wherein the seating furniture 1 can be swiveled between a seated position shown in FIG. 1 and a lying position shown in FIG.
  • the foot part 6 is connected to the seat part 3 via at least one foot part adjusting mechanism 2 .
  • the seat part 3 can be displaced relative to the chassis 5 by means of a first 10 and a second displacement unit 11 from a sitting position displaced towards the rear edge of the seating furniture 1 into a lying position displaced towards the front edge of the seating furniture 1 and the inclination can be adjusted.
  • front edge of the seat and “rear edge of the seat” refer to the perspective of a person sitting on the seat with their legs pointing forward and their back pointing back.
  • the first displacement unit 10 is formed by a linear or an approximately linear guide system, preferably by a lever adjustment mechanism 15 articulated on the chassis 5, wherein the guide system, starting from the sitting position of the chair 1, along a movement path relative to the chassis 5 can be moved forward , wherein the path of travel is preferably linear and the path of travel increases in the forward direction.
  • the mobility of the first displacement unit 10 relative to the chassis 5, in the direction of the rear edge of the chair 1, is blocked by a chassis-side stop element 18.
  • the second displacement unit 11 has a pivot guide, with a front
  • the first displacement unit 10 and the second displacement unit 11 are attached to one another, with the intermediate carrier 12 being articulated on two pivoting levers of the lever adjustment mechanism 15, as a result of which the second displacement unit 11 is guided in a displaceable manner relative to the chassis 5.
  • the second displacement unit 11 is subjected to a force by means of at least one tension spring 19 , the tension spring 19 acting between the intermediate carrier 12 of the second displacement unit 11 and the seat part 3 .
  • the lever adjustment mechanism 15 has at least one chassis lever 9 articulated on the chassis 5 .
  • a first connecting lever 13 is articulated, on the one hand, to the chassis lever 9 and, on the other hand, to a first end of a rotary lever 14 .
  • the rotary lever 14 is articulated with its preferably middle region on the seat part 3 and with its second end on a first end of a second connecting lever 16 .
  • the second connecting lever 16 is connected to the back part 4 in an articulated manner with its second end.
  • the articulated chain described forms the back mechanism of the chair 1 according to the invention, which, in contrast to the known chair of the generic type, is not articulated with at least one lever on the chassis, but is designed with all the mechanism parts “running along” with the seat part.
  • the front link lever 7 is positioned closer to the front edge of the piece of seating furniture 1 than the rear link lever 8 and is extended beyond the area of its pivot point on the seat part 3 and is linked with its free end to a first end of a control lever 20, with the control lever 20 being connected with its second End is connected in an articulated manner to a middle region of a jointed lever 21 of the foot part adjustment mechanism 2 which is articulated on the seat part 3 .
  • Only one linear actuator 22 is provided for adjusting the seat part 3, the foot part 6 and the back part 4 between the upright sitting and lying position of the piece of seating furniture 1, with a first end of the linear actuator 22 being connected to the chassis 5 and a second end of the linear actuator 22 is coupled to the foot part adjusting gear 2 via a cross brace connected to the foot part adjusting gear 2 .
  • the linear actuator 22 acting between the chassis 5 and the foot part adjustment mechanism 2 holds the foot part 6 in the pivoted-in end position; the first displacement unit 10 is held in its initial position by a pivoting lever of the lever adjustment mechanism 15 is kept in contact with the chassis-side stop element 18, and the second displacement unit 11 is defined by the defined positions of the foot part 6 and the first displacement unit 10 in its pivoting position.
  • a first adjustment step of the item of seating furniture 1 from the upright sitting to the lying position caused by a first partial stroke of the linear actuator 22 the seat part 3 is pushed forwards by means of the second displacement unit 11 and the rear area of the seat part 3 is lowered and the front area of the seat part 3 is raised so that the inclination of the seat part 3 is adjusted relative to the sitting position and at the same time the foot part 6 is extended until an articulated lever of the foot part adjusting mechanism 2 articulated on the seat part 3 comes into contact with the stop element 17 on the seat part side and thereby blocks the second displacement unit 11 is (Fig. 2).
  • the tension spring 19 shortens during the first adjustment step of the seat 1 and thereby supports the adjustment movement of the seat part 3 and the foot part 6.
  • the back part 4 is only insignificantly pivoted relative to the seat part 3 during the first adjustment step of the chair 1 from the upright sitting position to the lying position.
  • a second adjustment step of the item of seating furniture 1 caused by a second partial stroke of the linear actuator 22 from the upright sitting position to the lying position takes place due to the blocked second displacement unit 11, while maintaining the position of the foot part 6 relative to the seat part 3 achieved at the end of the first partial stroke Displacement of the seat part 3 relative to the chassis 5 forward and coupled with the displacement movement of the seat part 3 pivoting of the back part 4 relative to the seat part 3 until the reclining position of the chair 1 is reached (FIG. 5).
  • the sequence of movements of the chair 1 described between the upright sitting position and the reclining position is in principle identical to the known chairs with a single-motor wall-away function and a floor-free design.
  • the "running" back mechanism according to the invention of the seat 1 according to the invention makes it possible to design the back part completely freely in terms of upholstery, as a result of which modern seat furniture designs with slim upholstered backrests can be realized in particular.
  • the invention is not limited to the exemplary embodiment, but is variable in many ways within the scope of the disclosure.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

L'invention concerne un siège (1) qui comprend un châssis (5), une partie d'assise (3) pouvant pivoter dans son inclinaison, une partie dossier (4) pouvant pivoter par rapport à la partie d'assise (3), et une partie repose-pieds pivotante (6) reliée à la partie d'assise (3) par l'intermédiaire d'au moins un mécanisme de réglage de partie repose-pieds (2); le siège (1) pouvant être ajusté entre une position assise verticale et une position couchée, à cet effet, au moins pendant une phase partielle de l'ajustement du siège (1) de la position assise verticale à la position couchée, la partie d'assise (3) étant poussée vers l'avant par rapport au châssis (5) par l'intermédiaire d'une première unité de déplacement (10) et de préférence d'une deuxième unité de déplacement (11); la première unité de déplacement (10) étant formée par un mécanisme de réglage à levier (15) et comprenant au moins un levier de châssis (9) articulé au châssis (5), et un premier levier de liaison (13) étant articulé au levier de châssis (9); le premier levier de liaison (13) étant articulé par son extrémité libre à une première extrémité d'un levier rotatif (14), le levier rotatif (14) étant articulé par sa zone, de préférence centrale, à la partie d'assise (3); le levier rotatif (14) étant articulé par sa deuxième extrémité à une première extrémité d'un deuxième levier de liaison (16), le deuxième levier de liaison (16) étant accouplé à la partie dossier (4).
EP22797644.6A 2021-09-27 2022-09-21 Siège à fonction inclinable protège-mur à moteur unique et comprenant un mécanisme de réglage de dossier à rotation Pending EP4387491A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202021003056 2021-09-27
PCT/DE2022/100700 WO2023046238A1 (fr) 2021-09-27 2022-09-21 Siège à fonction inclinable protège-mur à moteur unique et comprenant un mécanisme de réglage de dossier à rotation

Publications (1)

Publication Number Publication Date
EP4387491A1 true EP4387491A1 (fr) 2024-06-26

Family

ID=84044952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22797644.6A Pending EP4387491A1 (fr) 2021-09-27 2022-09-21 Siège à fonction inclinable protège-mur à moteur unique et comprenant un mécanisme de réglage de dossier à rotation

Country Status (3)

Country Link
EP (1) EP4387491A1 (fr)
CN (1) CN118042961A (fr)
WO (1) WO2023046238A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4244620A (en) * 1978-03-22 1981-01-13 Mohasco Corporation Wall-proximity reclining chair
US4740031A (en) * 1986-09-05 1988-04-26 Parma Corporation Mechanism for a reclining chair or sofa module
DE202016104352U1 (de) 2016-08-08 2016-08-18 Ciar S.P.A. Sitzgelegenheit
CN106263778B (zh) 2016-10-19 2018-12-18 礼恩派(嘉兴)有限公司 机械伸展装置及包括该机械伸展装置的座椅单元

Also Published As

Publication number Publication date
CN118042961A (zh) 2024-05-14
WO2023046238A1 (fr) 2023-03-30

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