EP3965617B1 - Sitzmöbel mit zweimotoriger wallaway-funktion - Google Patents

Sitzmöbel mit zweimotoriger wallaway-funktion Download PDF

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Publication number
EP3965617B1
EP3965617B1 EP20750574.4A EP20750574A EP3965617B1 EP 3965617 B1 EP3965617 B1 EP 3965617B1 EP 20750574 A EP20750574 A EP 20750574A EP 3965617 B1 EP3965617 B1 EP 3965617B1
Authority
EP
European Patent Office
Prior art keywords
seat part
relative
seating furniture
adjustment
linear actuator
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
EP20750574.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3965617A1 (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
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 EP3965617A1 publication Critical patent/EP3965617A1/de
Application granted granted Critical
Publication of EP3965617B1 publication Critical patent/EP3965617B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • 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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/002—Chair or stool bases
    • 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
    • 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
    • A47C1/0345—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 characterised by foot-rests actuated by lazy-tongs
    • 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
    • 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
    • A47C1/036—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a head-rest
    • A47C1/037—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a head-rest in combination with a leg-rest or foot-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
    • A47C7/02—Seat parts
    • 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—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/46—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
    • 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
    • A47C7/506—Supports for the feet or the legs of adjustable type
    • 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
    • A47C7/506—Supports for the feet or the legs of adjustable type
    • A47C7/5066—Supports for the feet or the legs of adjustable type by rotation
    • A47C7/5068—Supports for the feet or the legs of adjustable type by rotation actuated by linkages
    • 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
    • A47C7/56—Parts or details of tipping-up chairs, e.g. of theatre chairs
    • A47C7/58—Hinges, e.g. for mounting chairs in a curved row

Definitions

  • the invention relates to a piece of seating furniture with a chassis, a seat part that can be pivoted in terms of inclination, a back part that can be swiveled relative to the seat part, and a foot part that can be swiveled out and is connected to the seat part via at least one foot part adjustment mechanism, with the seating furniture being adjusted from an upright sitting position to a Lying position, the seat part is shifted forward relative to the chassis, the foot part being pivoted in the sitting position essentially below the seat part and being pivoted out in front of the seat part in the lying position in such a way that the seat part is extended by the foot part.
  • the present invention relates to seating furniture in which the backrest can be pivoted without a wall and which is therefore also colloquially referred to as sofas with a wall-away function.
  • a first adjustment step the seat part is pushed forwards and the rear area of the seat part is lowered and the front area of the seat part is raised, so that the seat part is adjusted in inclination relative to the sitting position, in this first, also known as the "lounge position". designated intermediate position of the chair, the footboard is not yet extended.
  • a second adjustment step the foot part is extended in front of the seat part without further adjustment of the seat part, whereby a second intermediate position, also referred to as a "relaxation position", is reached.
  • the seat part is then pushed further forward and the back part is pivoted into a lying position synchronously with the movement.
  • EP3143902A1 two linear actuators required, with a foot part linear actuator between the seat part and the Foot section adjustment gear and a back section linear actuator between the seat section and the chassis, whereby, during the adjustment of the seating furniture from the sitting to the lying position, the back section linear actuator is first actuated in an electronically controlled sequence in order to incline the seat section adjust and thus create a greater distance from the front edge of the seat part to the ground in order to be able to extend the longest possible foot part.
  • the foot part linear actuator is then actuated in order to extend the foot part. Only after the foot section has been fully extended is the back section linear actuator operated using the electronic control unit in order to adjust the angle of the backrest.
  • the disadvantage here is that due to the electronically controlled adjustment process, it is not possible for the user to adjust the back part and the foot part independently of one another, despite the use of two linear actuators.
  • the length of the foot part would then be restricted, since when the foot part is adjusted, it would then have to pass the floor even in a seat part position that was not adjusted in inclination.
  • the invention is based on the object of further developing a piece of seating furniture of the generic type in such a way that, when using two linear actuators for adjusting the seat part, the back part and the foot part with two intermediate positions located between the sitting and the lying position according to the pamphlet EP3143902A1 , the back part and the foot part can be adjusted independently of each other without having to limit the length of the foot part.
  • the features according to the invention make it possible to provide a piece of seating furniture of the generic type which ensures that the back part and the foot part can be adjusted independently of one another and that the back part and the seat part can also be adjusted independently of one another.
  • the foot part is not limited in length and can be the same length as that of the EP3143902A1 have known seating furniture.
  • the foot part linear actuator between the foot part adjustment mechanism and a cross strut that is guided so that it can be displaced both relative to the chassis and relative to the seat part
  • the back part linear actuator acts between the chassis and the cross strut that is guided so that it can be displaced both relative to the chassis and relative to the seat part
  • an electronic control system such as that shown in FIG EP3143902A1 known, can be dispensed with without restricting the length of the foot part.
  • a piece of seating furniture 1 consists of a chassis 5, a seat part 3, a back part 4 connected to the seat part 3 and/or the chassis 5 via at least one back part adjustment mechanism 2, and a swing-out foot part 6, with the seating furniture item 1 between an in figure 1 shown seating position and an in figure 8 shown lying position is pivotable.
  • the foot part 6 is connected to the seat part 3 via at least one foot part adjusting mechanism 9, preferably in the form of at least five four-bar linkage chains arranged one behind the other.
  • the foot part adjustment mechanism 9 has a first 25 and a second 26 articulated lever each articulated on the seat part 3, with at least one of the first 25 and the second articulated lever 26 having a stop element 24 which, during the pivoting movement of the foot part 6, comes into contact with a stop surface of one with the front area of the seat part 3 connected seat part strap 27 comes into contact.
  • the back part adjusting mechanism 2 has a fastening plate 20 firmly connected to the seat part 3 with an adjusting lever 21 articulated thereon, which is also connected to the chassis 5 via a first connecting lever 22 and to the back part 4 via a second connecting lever 23 .
  • 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 has a swivel guide, with a front 7 and a rear link lever 8 forming a four-bar linkage chain with the seat part 3 and an intermediate support 14 connected to the second displacement unit 11 .
  • the pivoting movement of the first displacement unit 10 in the direction of the front edge of the chair 1 is blocked by a stop element 18 on the seat part side.
  • the second displacement unit 11 is formed by a linear or an approximately linear guide system, preferably by a lever adjustment mechanism 16 articulated on the chassis 5 or by a rack and pinion mechanism or by sliding blocks or rollers that can be moved in a form-fitting manner in a C-profile, with the guide system, starting from the Sitting position of the chair 1, along a path of movement relative to the chassis 5 is movable forward, wherein the path of movement is preferably linear and / or the path of movement increases in the forward direction.
  • the first 10 and the second displacement unit 11 are attached to one another, with the intermediate carrier 14 being articulated on two pivoting levers 28 of the lever adjustment mechanism 16, as a result of which the first displacement unit 10 is guided in a displaceable manner relative to the chassis 5.
  • the first displacement unit 10 is subjected to a force by means of a tension spring 17 .
  • the tension spring 17 is preferably coupled to the seat part 3 on the one hand and preferably to the intermediate carrier 14 of the first displacement unit 10 on the other hand.
  • a first linear actuator 12 is coupled to the chassis 5 at a first end and to the first displacement unit 10 at a second end via a first cross brace 15 connected to the intermediate carrier 14 of the first displacement unit 10 .
  • the first transverse strut 15 is guided in a displaceable manner both relative to the chassis 5 and relative to the seat part 3 .
  • a second linear actuator 13 is coupled at a first end to the first cross brace 15 and at a second end to the foot part adjustment gear 9 via a second cross brace 19 connected to the foot part adjustment gear 9 .
  • the first linear actuator 12 which is articulated between the chassis 5 and the first crossbar 15, holds the second displacement unit 11 in its starting position, as well as the second linear actuator acting between the first 15 and the second crossbar 19 13, the foot part 6 is held in the pivoted-in end position by means of the stop element 24 acting between the seat part bracket 27 and the foot part adjusting mechanism 9, and the first displacement unit 10 is held in place by the defined position of the foot part 6 and by means of the second linear actuator 13 is defined in its pivoting position ( 1 , 2 ).
  • the second linear actuator 13 When actuated, the second linear actuator 13 generates a linear stroke consisting of at least a first and a second partial stroke, whereby in a first adjustment step of the seating furniture item 1 caused by the first partial stroke of the second linear actuator 13 from the sitting to the lying position, the seat part 3 is moved by means of the first displacement unit 10 is pushed forward 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 seat part 3 is adjusted in inclination relative to the sitting position of the piece of seating furniture 1 until the rear link lever 8 of the first displacement unit 10 comes into contact with the stop element 18 on the seat part side and the pivoting movement of the first displacement unit 10 is thereby blocked.
  • the foot part 6 is not yet extended ( 3 , 4 , 5 ).
  • the tension spring 17 shortens during this first adjustment step and thereby supports the adjustment movement of the seat part 3, as a result of which the seat part 3 is adjusted first without the foot part 6 pivoting relative to the seat part 3 ( 3 , 4 , 5 ).
  • the front edge of the seat part 3 is at a greater distance from the support plane of the seating furniture item 1 than when the seating furniture item 1 is in the sitting position, as a result of which a greater pivoting space is made available for the foot part 6, which extends after this first intermediate position has been reached, and thus the use of a longer foot part 6 is made possible.
  • the further advantage of this first intermediate position of the chair 1 is the possibility for the user to assume a more relaxed sitting position than the seated position of the chair 1 without the foot part 6 already extending.
  • the foot part 6 is first retracted until the stop element 24 comes into contact with the stop surface of the seat part bracket 27, and then the seat part 3 against the spring force of the Tension spring 17 adjusted to the starting position.
  • a linear stroke generated by actuation of the first linear actuator 12 causes a third adjustment step of the seating furniture item 1 from the sitting to the lying position, whereby during this adjustment step, the position of the foot part 6 relative to the seat part 3 is shifted by means of the lever adjustment mechanism 16 of the seat part 3 relative to the chassis 5 forward and a pivoting of the back part 4 relative to the seat part 3 coupled with the displacement movement of the seat part 3 takes place ( 8 , 9 ).
  • All of the aforementioned adjustment steps effected by the first 12 and the second linear actuator 13 can be carried out separately and in any order or, if necessary, simultaneously, with an adjustment of the back part 4 and the foot part 6 to be actuated independently of one another and an adjustment of the back part 4 and the seat part 3 is guaranteed, so that in every adjustment position of the seat part 3 or the foot part 6, a smooth adjustment of the back part 4 is possible in any desired pivoting position and in every adjustment position of the back part 4 the seat part 3 or the foot part 6 in any desired Position can be pivoted.
  • a chair 1 of the present invention allows many more, the comfort of the chair 1 increasing adjustment combinations of the seat part 3, the foot part 6 and the back part 4, for example, as in the Figures 10a, 10b shown, in the case of a seat part 3 that is not or only partially adjusted in inclination, the back part 4 can be adjusted relative to the seat part 3 without a wall.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chairs Characterized By Structure (AREA)
EP20750574.4A 2019-06-29 2020-06-28 Sitzmöbel mit zweimotoriger wallaway-funktion Active EP3965617B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019117625 2019-06-29
PCT/DE2020/100560 WO2021000994A1 (de) 2019-06-29 2020-06-28 Sitzmöbel mit zweimotoriger wallaway-funktion

Publications (2)

Publication Number Publication Date
EP3965617A1 EP3965617A1 (de) 2022-03-16
EP3965617B1 true EP3965617B1 (de) 2023-08-02

Family

ID=71943890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20750574.4A Active EP3965617B1 (de) 2019-06-29 2020-06-28 Sitzmöbel mit zweimotoriger wallaway-funktion

Country Status (8)

Country Link
US (1) US11737561B2 (da)
EP (1) EP3965617B1 (da)
CN (1) CN114025644B (da)
DE (1) DE112020003152A5 (da)
DK (1) DK3965617T3 (da)
ES (1) ES2957138T3 (da)
PL (1) PL3965617T3 (da)
WO (1) WO2021000994A1 (da)

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DE102021122430A1 (de) * 2021-08-31 2023-03-02 Ferdinand Lusch Gmbh Schwenkbeschlag eines sitzmöbels zum verstellen eines fussteils und sitzmöbel mit verstellbarem fussteil
WO2023046239A1 (de) * 2021-09-27 2023-03-30 Michael Schuster Sitzmöbel mit zweimotoriger wallaway-funktion und separater sitztiefen- und sitzneigungsverstellung
DE112022004695A5 (de) * 2021-09-27 2024-07-11 M. Schuster Patentverwertungs Gmbh SITZMÖBEL MIT SEPARATER SITZTIEFEN-, SITZNEIGUNGS- UND FUßTEILVERSTELLUNG
CN117999016A (zh) * 2021-09-27 2024-05-07 M·舒斯特专利实施有限责任公司 带有仅一个用于坐席部和靠背件调整的移位单元的座椅家具
US12022949B2 (en) 2022-10-13 2024-07-02 Hidden Lake 822, Llc Drive motor-linear actuator system for powered lift or powered reclining chairs
US12532966B2 (en) * 2022-10-31 2026-01-27 Ultra-Mek, Inc. Reciprocating-reclining seating unit with power actuators
US20240315452A1 (en) * 2023-03-23 2024-09-26 L&P Property Management Company High-leg recliner seating mechanism
US20240315453A1 (en) * 2023-03-23 2024-09-26 L&P Property Management Company High-leg recliner seating mechanism
PL449846A1 (pl) 2024-09-18 2026-03-23 Andrzej Iwanicki Mebel z wysuwanym siedziskiem

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Also Published As

Publication number Publication date
CN114025644A (zh) 2022-02-08
PL3965617T3 (pl) 2024-01-22
CN114025644B (zh) 2024-02-13
ES2957138T3 (es) 2024-01-11
EP3965617A1 (de) 2022-03-16
DK3965617T3 (da) 2023-10-30
DE112020003152A5 (de) 2022-03-17
WO2021000994A1 (de) 2021-01-07
US11737561B2 (en) 2023-08-29
US20220312968A1 (en) 2022-10-06

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