WO2023046242A1 - Sitzmöbel mit lediglich einer verlagerungseinheit für sitz- und rückenteilverstellung - Google Patents
Sitzmöbel mit lediglich einer verlagerungseinheit für sitz- und rückenteilverstellung Download PDFInfo
- Publication number
- WO2023046242A1 WO2023046242A1 PCT/DE2022/100704 DE2022100704W WO2023046242A1 WO 2023046242 A1 WO2023046242 A1 WO 2023046242A1 DE 2022100704 W DE2022100704 W DE 2022100704W WO 2023046242 A1 WO2023046242 A1 WO 2023046242A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lever
- seat
- chassis
- seating furniture
- seat part
- Prior art date
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 40
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 description 2
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
-
- 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, 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
Definitions
- the invention relates to seating furniture with a chassis, a seat part that can be pivoted in terms of inclination and a back part that can be swiveled relative to the seat part, the seating furniture being adjustable between an upright seating position and a lying position, for which purpose the seat part is moved relative to the chassis in order to adjust the seating furniture into a lying position is shifted forward.
- 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.
- a piece of seating furniture with such a wallaway function is known from publication EP 3 143 902 A1 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 up to an intermediate position of the seating furniture item, also referred to as a “lounge position”.
- the disadvantage here is that two mutually attached displacement units are required to achieve the two-stage movement process mentioned, namely on the one hand in the form of a four-joint swivel guide for adjusting the seat part inclination and on the other hand in the form of a lever adjustment mechanism for the essentially linear displacement of the seat part and the back part adjustment coupled thereto.
- the invention is based on the object of further 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 adjusted first and only then the back part, is adjusted by means of just one displacement unit can be achieved.
- a displacement unit according to the invention articulated on the one hand on the chassis and on the other hand on the seat part has a first and a second chassis lever articulated on the chassis and a first and a second seat lever articulated on the seat part.
- the first chassis lever is connected to a second pivot point at a second pivot point of the first seat lever and the second chassis lever is connected to a second pivot point at a second pivot point of the second seat lever.
- a coupling lever is connected on the one hand to a third articulation point of the first seat lever and on the other hand to a third articulation 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 articulated at its free end to a first end of a control lever, the second end of which is articulated to a central area of the coupling lever.
- the back part is pivotably connected to the seat part via a back part adjusting mechanism, the back part adjusting mechanism being connected on the one hand to the back part and on the other hand to the chassis.
- the seat part is moved forward relative to the chassis from an upright sitting position to a reclining position of the piece of seating furniture by means of the articulated chains of the displacement unit.
- 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 seat furniture item, the predominant part of the inclination adjustment of the seat part takes place and the back part is only slightly pivoted in relation to the seat part.
- the seat part is tilted to a much lesser extent than during the first third, with this smaller inclination adjustment being perceived by the user as a linear displacement of the seat part.
- the back part is simultaneously pivoted in relation to the seat part in inclination by means of the back part adjusting mechanism up to the reclining position of the chair.
- a first adjustment step the seat part is pushed forward and the inclination is adjusted at the same time until a so-called “lounge position" is reached, in which case the back part is not or only slightly pivoted relative to the seat part, and -
- a second adjustment step the seat part is moved further forward and essentially linearly and the back part is pivoted relative to the seat part into the reclining position, only one displacement unit is required instead of two successively pivoting displacement units as previously known from the prior art.
- FIG. 1 shows a piece of seating furniture according to the invention in an upright sitting position
- FIG. 2 shows a detailed view of the piece of seating furniture according to the invention in an upright sitting position
- FIG 3 shows the item of seating furniture according to the invention in an intermediate position with the seat part pivoted in the inclination ("lounge position") and
- FIG. 4 shows a detailed view of the chair according to the invention in the 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 adjusting mechanism 10, the seating furniture item 1 being able to be moved between an upright sitting position shown in Figs. 1 and 2 and a reclining position shown in FIG. 4 can be pivoted, wherein in the reclining 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 relative to the chassis 5 by a displacement distance from an upright sitting position displaced to the rear edge of the seating furniture 1 to a reclining position of the seating furniture 1 displaced to the front edge of the seating furniture 1 and at the same time the inclination is 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 displacement unit 2 shown in FIGS. 2 and 4 (the chassis 5 is hidden in these figures for the sake of clarity) has a first 7 and a second 9 chassis lever articulated on the chassis 5 and a first 8 and a second 10 each on the seat part fitting 3a, the first chassis lever 7 and the first seat lever 8 being 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 with a second articulation point to a second articulation point of the first seat lever 8 and the second chassis lever 9 is connected to a second articulation point at a second articulation point of the second seat lever 10 .
- a coupling lever 12 is connected on the one hand to a third articulation point of the first seat lever 8 and on the other hand to a third articulation point of the second seat lever 10 .
- the first chassis lever 7 is extended beyond the area of its pivot point on the first seat lever 8 and is articulated with its free end on a first end of a control lever 13 whose second end is articulated on 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 and a forced Pivoting of the second chassis lever 9 and the second seat lever 10, whereby movement of the seat part 3 relative to the chassis 5 takes place synchronously with these pivoting movements.
- the second seat lever 10 is longer 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 relative to the second seat lever 10 by an angle of more than 130°, with the first chassis lever 7 is pivoted by a greater angle relative to the first seat lever 8 than the second chassis lever 9 relative to the second seat lever 10.
- This characteristic of the seat part 3 adjustment in which during a first third of the displacement distance of the seat part 3 this is adjusted in inclination by an angular amount that is preferably more than twice as large as during a last third of this displacement distance, forms a basis for a desired two-stage movement sequence of seating furniture 1, in which first the seat part 3 is adjusted in inclination up to a "lounge position" and only then is the back part 4 adjusted.
- the back part 4 is pivotally connected to the seat part fitting 3a by means of a back part adjusting mechanism 14, the seat part fitting 3a being connected to an adjusting lever 15 is coupled, 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 .
- the back part adjustment mechanism 14 is coupled to the displacement unit 2 according to the invention in such a way that during the adjustment of the chair 1 from the upright sitting position to the lying position,
- the back part 4 is adjusted by an angular amount b relative to the seat part 3 in inclination, wherein
- the back part 4, with a tilt adjustment of the seat part 3 of 70% of the angular amount a, is adjusted by less than 30%, preferably by less than 15% of the angular amount b relative to the seat part 3 in inclination.
- This characteristic of the back part 4 adjustment as a function of the seat part 3 inclination adjustment forms a further component for the desired two-stage movement sequence of the seating furniture 1, in which first the seat part 3 is adjusted in inclination and essentially only then is the back part 4 adjusted.
- the seat part 3 is pushed forward and the inclination is adjusted at the same time until a "lounge position" that the user finds comfortable is reached, with the back part 4 being pivoted only slightly relative to the seat part 3 in this adjustment position, and
- the seat part 3 is displaced further forward and substantially linearly, during this displacement movement of the seat part 3, the back part 4 is pivoted relative to the seat part 3 until the lying position of the piece of seating furniture 1 is reached.
- the invention is not limited to the exemplary embodiments, 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
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280065037.5A CN117999016A (zh) | 2021-09-27 | 2022-09-21 | 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 |
EP22798059.6A EP4387490A1 (de) | 2021-09-27 | 2022-09-21 | Sitzmöbel mit lediglich einer verlagerungseinheit für sitz- und rückenteilverstellung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202021003061 | 2021-09-27 | ||
DE202021003061.1 | 2021-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023046242A1 true WO2023046242A1 (de) | 2023-03-30 |
Family
ID=84045050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2022/100704 WO2023046242A1 (de) | 2021-09-27 | 2022-09-21 | Sitzmöbel mit lediglich einer verlagerungseinheit für sitz- und rückenteilverstellung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4387490A1 (de) |
CN (1) | CN117999016A (de) |
WO (1) | WO2023046242A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4244620A (en) * | 1978-03-22 | 1981-01-13 | Mohasco Corporation | Wall-proximity reclining chair |
EP3143902A1 (de) | 2015-09-15 | 2017-03-22 | Ciar S.P.A. | Wandbündige rücklehne |
WO2021000994A1 (de) * | 2019-06-29 | 2021-01-07 | Michael Schuster | Sitzmöbel mit zweimotoriger wallaway-funktion |
CN213097009U (zh) * | 2020-09-24 | 2021-05-04 | 张孝兆 | 座椅活动机构、座椅架体及座椅 |
-
2022
- 2022-09-21 WO PCT/DE2022/100704 patent/WO2023046242A1/de active Application Filing
- 2022-09-21 CN CN202280065037.5A patent/CN117999016A/zh active Pending
- 2022-09-21 EP EP22798059.6A patent/EP4387490A1/de active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4244620A (en) * | 1978-03-22 | 1981-01-13 | Mohasco Corporation | Wall-proximity reclining chair |
EP3143902A1 (de) | 2015-09-15 | 2017-03-22 | Ciar S.P.A. | Wandbündige rücklehne |
WO2021000994A1 (de) * | 2019-06-29 | 2021-01-07 | Michael Schuster | Sitzmöbel mit zweimotoriger wallaway-funktion |
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 |
---|---|
CN117999016A (zh) | 2024-05-07 |
EP4387490A1 (de) | 2024-06-26 |
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