EP4387490B1 - Sitzmöbel mit lediglich einer verlagerungseinheit für sitz- und rückenteilverstellung - Google Patents

Sitzmöbel mit lediglich einer verlagerungseinheit für sitz- und rückenteilverstellung Download PDF

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Publication number
EP4387490B1
EP4387490B1 EP22798059.6A EP22798059A EP4387490B1 EP 4387490 B1 EP4387490 B1 EP 4387490B1 EP 22798059 A EP22798059 A EP 22798059A EP 4387490 B1 EP4387490 B1 EP 4387490B1
Authority
EP
European Patent Office
Prior art keywords
lever
seat
chassis
seating furniture
seat part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP22798059.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4387490A1 (de
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
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Filing date
Publication date
Application filed by M Schuster Patentverwertungs GmbH filed Critical M Schuster Patentverwertungs GmbH
Publication of EP4387490A1 publication Critical patent/EP4387490A1/de
Application granted granted Critical
Publication of EP4387490B1 publication Critical patent/EP4387490B1/de
Active 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
    • A47C1/035—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
    • 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 actuated by linkages, e.g. lazy-tongs mechanisms
    • 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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • A47C1/03211—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination by electric motors
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
    • 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
    • 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 characterised by coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers

Definitions

  • the invention relates to a piece of seating furniture with a chassis, a seat part which can be pivoted in its inclination and a back part which can be pivoted relative to the seat part, wherein the seating furniture is adjustable between an upright sitting position and a lying position, for which purpose the seat part is moved forward relative to the chassis in order to adjust the seating furniture to a lying position.
  • the present invention relates to seating furniture in which the backrest can be swiveled without obstructing the wall, which is therefore colloquially referred to as "sofas with wall-away function.” This means that when swiveling into a reclining position, the backrest moves forward along with the seat relative to the chassis, so that the backrest does not protrude, or only slightly protrudes, beyond the rear edge of the seating furniture in any swivel position.
  • the WO 2021/000994 A1 shows a piece of seating furniture with a seat section that is adjustable relative to a chassis of the seating furniture.
  • the seating furniture also includes a footrest and a backrest that can be operated independently of each other.
  • the US 4 244 620 A discloses a manually operated piece of seating furniture with a seat part that is adjustable relative to a chassis of the seating furniture and, in particular, is horizontally and linearly displaceable. Because the seat part is displaceable relative to the chassis, the seating furniture can be placed close to a wall without a backrest colliding with the wall when the seating furniture is moved into a reclining position.
  • the invention is based on the object of developing a piece of seating furniture with a wall-away function of the generic type in such a way that a two-stage movement sequence, in which the inclination of the seat part is first adjusted and only then the back part is adjusted, can be achieved by means of only one displacement unit.
  • a displacement unit according to the invention which is hinged on the one hand to the chassis and on the other hand to the seat part, has a first and a second chassis lever, each hinged on the chassis, and a first and a second seat lever, each hinged on the seat part.
  • a coupling lever is connected on the one hand to a third joint point of the first seat lever and on the other hand to a third joint point of the second seat lever.
  • the first chassis lever is extended beyond the area of its pivot point on the first seat lever and is pivoted with its free end to a first end of a control lever, the second end of which is pivotally connected to a central area of the coupling lever.
  • the backrest is pivotally connected to the seat section via a backrest adjustment mechanism, with the backrest adjustment mechanism being connected to the backrest on one side and to the chassis on the other.
  • the seat part is moved forward from an upright sitting position to a lying position of the seating furniture relative to the chassis.
  • the movement sequence of the displacement unit is controlled in such a way that during approximately the first third of the displacement distance of the seat part between the upright sitting and the lying position of the seating furniture, the predominant part of the inclination adjustment of the seat part takes place and the back part is only slightly pivoted relative to the seat part.
  • the seat section's inclination adjustment is significantly smaller than during the first third, with this smaller inclination adjustment being perceived by the user as a linear displacement of the seat section.
  • the back part is simultaneously tilted relative to the seat part by means of the back part adjustment gear until the seating furniture is in a reclining position.
  • the seating furniture 1 consists of a chassis 5, a seat part fitting 3a coupled to a seat part 3 and a back part 4 which can be pivoted relative to the seat part fitting 3a by means of a back part adjustment gear 10, wherein the seating furniture 1 can be pivoted between a Fig. 1 and 2 shown upright sitting position and one in Fig. 4 shown lying position, wherein in the lying position the back part 4 is pivoted further backwards relative to the seat part fitting 3a than in the upright sitting position.
  • the seat part 3 is displaced by means of at least one displacement unit 2 by a displacement distance from an upright sitting position displaced towards the rear edge of the seating furniture 1 into a reclining position of the seating furniture 1 displaced towards the front edge of the seating furniture 1 relative to the chassis 5 and at the same time the inclination is adjusted.
  • front edge of the seat and “back edge of the seat” refer to the perspective of a person sitting on the seat with their legs pointing forward and their back pointing backward.
  • the displacement unit 2 shown (the chassis 5 is hidden in these figures for better clarity) has a first chassis lever 7 and a second chassis lever 9, each hinged to the chassis 5, and a first seat lever 8 and a second seat lever 10, each hinged to the seat part fitting 3a, wherein the first chassis lever 7 and the first seat lever 8 are positioned closer to a vertical plane spanned by the front edge 11 of the seat part 3 than the second chassis lever 9 and the second seat lever 10.
  • the first chassis lever 7 is connected to a second articulation point of the first seat lever 8 by a second articulation point and the second chassis lever 9 is connected to a second articulation point of the second seat lever 10 by a second articulation point.
  • the first chassis lever 7 is extended beyond the area of its articulation point on the first seat lever 8 and is articulated with its free end to a first end of a control lever 13, the second end of which is articulated to a central area of the coupling lever 12.
  • each pivoting movement of the first chassis lever 7 relative to the chassis 5 causes a forced pivoting of the first seat lever 8 relative to the seat part fitting 3a as well as a forced Pivoting of the second chassis lever 9 and the second seat lever 10, whereby a displacement of the seat part 3 relative to the chassis 5 takes place in synchronism with these pivoting movements.
  • the second seat lever 10 has a greater length than the first seat lever 8.
  • the longitudinal axis of the first seat lever 8 is more inclined to a vertical plane than the longitudinal axis of the second seat lever 10.
  • the first chassis lever 7 is pivoted relative to the first seat lever 8 and the second chassis lever 9 is pivoted relative to the second seat lever 10 by an angle of more than 130°, wherein the first chassis lever 7 is pivoted relative to the first seat lever 8 by a greater angular amount than the second chassis lever 9 is pivoted relative to the second seat lever 10.
  • This characteristic of the seat part 3 adjustment in which during a first third of the displacement of the seat part 3, the inclination of the seat part 3 is preferably adjusted by an angle that is more than twice as large as during a last third of this displacement, forms a basis for a desired two-stage movement sequence of the seating furniture 1, in which first the inclination of the seat part 3 is adjusted to a "lounge position" and only then the back part 4.
  • the back part 4 is pivotally connected to the seat part fitting 3a by means of a back part adjustment gear 14, wherein the seat part fitting 3a is provided with an adjustment lever 15, which is connected to the chassis 5 via a first connecting lever 16 and to the back part 4 via a second connecting lever 17.
  • This characteristic of the backrest 4 adjustment in relation to the seat 3 inclination adjustment forms a further component for the desired two-stage movement sequence of the seating furniture 1, in which the inclination of the seat 3 is adjusted first and essentially only then the backrest 4.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP22798059.6A 2021-09-27 2022-09-21 Sitzmöbel mit lediglich einer verlagerungseinheit für sitz- und rückenteilverstellung Active EP4387490B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202021003061 2021-09-27
PCT/DE2022/100704 WO2023046242A1 (de) 2021-09-27 2022-09-21 Sitzmöbel mit lediglich einer verlagerungseinheit für sitz- und rückenteilverstellung

Publications (2)

Publication Number Publication Date
EP4387490A1 EP4387490A1 (de) 2024-06-26
EP4387490B1 true EP4387490B1 (de) 2025-05-21

Family

ID=84045050

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22798059.6A Active EP4387490B1 (de) 2021-09-27 2022-09-21 Sitzmöbel mit lediglich einer verlagerungseinheit für sitz- und rückenteilverstellung

Country Status (5)

Country Link
EP (1) EP4387490B1 (pl)
CN (1) CN117999016A (pl)
DK (1) DK4387490T3 (pl)
PL (1) PL4387490T3 (pl)
WO (1) WO2023046242A1 (pl)

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
EP3143902B2 (en) 2015-09-15 2023-04-26 Ciar S.P.A. Wall hugger recliner
CN114025644B (zh) * 2019-06-29 2024-02-13 M·舒斯特专利实施有限责任公司 具有双电机离墙功能的座椅家具
CN213097009U (zh) * 2020-09-24 2021-05-04 张孝兆 座椅活动机构、座椅架体及座椅

Also Published As

Publication number Publication date
PL4387490T3 (pl) 2025-09-08
DK4387490T3 (da) 2025-08-18
CN117999016A (zh) 2024-05-07
EP4387490A1 (de) 2024-06-26
WO2023046242A1 (de) 2023-03-30

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