WO2023046239A1 - Piece of seating furniture with a dual-motor wallaway function and separate seat-depth and seat-inclination adjustment - Google Patents
Piece of seating furniture with a dual-motor wallaway function and separate seat-depth and seat-inclination adjustment Download PDFInfo
- Publication number
- WO2023046239A1 WO2023046239A1 PCT/DE2022/100701 DE2022100701W WO2023046239A1 WO 2023046239 A1 WO2023046239 A1 WO 2023046239A1 DE 2022100701 W DE2022100701 W DE 2022100701W WO 2023046239 A1 WO2023046239 A1 WO 2023046239A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seat part
- seat
- lever
- relative
- chassis
- Prior art date
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 36
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- A47C1/032—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
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
- A47C1/023—Reclining or easy chairs having independently-adjustable supporting parts the parts being horizontally-adjustable seats ; Expandable seats or the like, e.g. seats with horizontally adjustable 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
- A47C1/032—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
- A47C1/034—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
-
- 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 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 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.
- the disadvantage here is that it is not possible for the user to adjust the inclination of the seat part without swiveling the foot part out or in at the same time.
- a generic piece of seating furniture from the publication US 2019/0216221 A1 also enables a seat depth adjustment, but despite the use of three linear actuators for adjusting the seat part, the foot part and the back part, it is also not possible here to adjust the seat part inclination and the foot part independently operate from each other.
- the invention is based on the object of further developing a piece of seating furniture of the generic type in such a way that on the one hand the possibility of a seat depth adjustment is guaranteed and on the other hand a seat part inclination adjustment and a foot part adjustment can be carried out independently of one another.
- the seat depth adjustment and the seat part inclination adjustment should be able to be actuated both separately and in combination with one another.
- the seat part in a piece of seating furniture according to the invention has a front seat part fitting which is linearly displaced relative to a rear seat part fitting by means of a lever adjustment mechanism until the displacement movement of the front seat part fitting is blocked by contact of the lever adjustment mechanism with a stop element.
- the rear seat part fitting can be displaced relative to the chassis by means of a displacement unit in the form of articulated chains arranged according to the invention and can be adjusted in inclination.
- a first linear actuator has a first end coupled to the chassis and a second end coupled to a first cross brace coupled to the rear seat pan hardware.
- a second linear actuator has a first end coupled to the first cross member and a second end coupled to the foot portion adjustment mechanism via a second cross member coupled to the foot portion adjustment mechanism.
- the first linear actuator generates a linear stroke when actuated and causes at least a partial stroke to move the seat part relative to the chassis and at the same time to adjust the inclination of the seat part, with the foot part not pivoting out or in relative to the seat part during this partial stroke of the first linear actuator, wherein
- the second linear actuator When actuated, the second linear actuator produces a linear stroke consisting of a first and a second partial stroke, wherein
- the second linear actuator causes a displacement of the front seat part fitting relative to the rear seat part fitting and thus a seat depth adjustment with a first partial stroke, whereby during this partial stroke of the second linear actuator the foot part does not swivel out or in relative to the seat part, the second linear actuator with a first partial stroke following second
- Partial stroke causes the foot part to pivot relative to the seat part, with during This pivoting movement of the foot part does not adjust the inclination of the seat part.
- this adjustment process ensures that the seat part inclination adjustment and the foot part adjustment can be actuated independently of one another.
- the advantage of the seat part inclination adjustment of the seating furniture that can be operated separately according to the invention is the possibility for the user to carry out an additional adjustment function, also referred to as a “lounge position”, compared to the seating furniture known from DE 102014 103 536 A1 and DE 202004011 998 U1, in which the user can assume a more relaxed sitting position than the sitting position of the chair without the foot part being pivoted out.
- the seat part inclination adjustment and the seat depth adjustment can be actuated both separately and independently of one another and in combination with one another.
- FIG. 1 shows a piece of furniture according to the invention in the upright sitting position of the piece of furniture
- FIG. 2 shows the seating furniture according to the invention according to FIG. 1 from a different perspective
- FIG. 3 shows the piece of seating furniture according to the invention according to FIG. 1 in a detailed view
- FIG. 4 the seating furniture according to the invention according to FIG. 1 adjusted in the seat depth
- FIG. 5 shows the seating furniture according to the invention in an intermediate “lounge” position
- FIG. 6 shows the seating furniture according to the invention according to FIG. 5 from a different perspective
- FIG. 7 shows the piece of seating furniture according to the invention according to FIG. 1 in a detailed partial view
- FIG. 8 shows the seating furniture according to the invention according to FIG. 5 in a detailed view
- FIG. 9 shows the seating furniture according to the invention according to FIG. 8 adjusted in the seat depth
- FIG. 10 shows the piece of furniture according to the invention, adjusted in terms of seat depth and seat inclination, with the foot part pivoted out;
- FIG. 11 shows the piece of seating furniture according to the invention according to FIG. 10 from a different perspective
- FIG. 12 shows the piece of furniture according to the invention in a reclining position of the piece of furniture with the seat part adjusted in depth and the foot part swiveled out;
- FIG. 13 shows the piece of seating furniture according to the invention according to FIG. 12, in a detailed view
- FIG. 14 shows the seating furniture according to the invention according to FIG. 12 from a different perspective.
- the seating furniture item 1 consists of a chassis 5, a back part 4, a seat part 3 and a foot part 6 which can be swiveled out and in relative to the seat part 3, with the seating furniture item 1 being able to be swiveled between an upright sitting position and a reclining position, with the back part being in the reclining position 4 is pivoted further backwards relative to the seat part 3 than in the upright sitting position.
- the seat part 3 has a front seat part fitting 3a, which by means of at least one linear or approximately linear guide system, preferably in the form of a Lever adjustment gear 14, is slidably guided relative to a rear seat part fitting 3b.
- a front seat part fitting 3a which by means of at least one linear or approximately linear guide system, preferably in the form of a Lever adjustment gear 14, is slidably guided relative to a rear seat part fitting 3b.
- the foot part 6 is connected to the front seat part fitting 3a of the seat part 3 via at least one foot part adjusting mechanism 9 .
- An articulated lever 18 of the foot part adjusting mechanism 9, which is articulated on the front seat part fitting 3a, has a foot part-side stop element 19, with the adjustment movement of the foot part 6 in the direction of the swiveled-in position being initiated by contact of the foot part-side stop element 19 on a stop surface of a seat part strap 20 connected to the front seat part fitting 3a is blocked.
- the back part 4 is pivotally connected to the rear seat part fitting 3b via a back part adjustment mechanism 10 .
- the back part adjusting mechanism 10 has a fastening plate 21 which is firmly connected to the rear seat part fitting 3b and has an adjusting lever 22 articulated thereon, which is connected to the chassis 5 via a first connecting lever 23 and to the back part 4 via a second connecting lever 24 .
- the seat part 3 is shifted by means of at least one displacement unit 2 from an upright sitting position shifted to the rear edge of the seating furniture 1 to a reclining position of the seating furniture 1 shifted to 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 “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 backwards.
- the displacement unit 2 shown in Figures 3 and 13 has a first 7 and a second 25 chassis lever articulated on the chassis 5, respectively, and a first 8 and a second 26 respectively on the rear Seat part fitting 3b hinged seat lever.
- 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 25 is connected to a second articulation point at a second articulation point of the second seat lever 26 .
- a coupling lever 27 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 26 .
- 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 to a first end of a control lever 28 whose second end is articulated to a central area of the coupling lever 27 .
- a pivoting of the first chassis lever 7 in relation to the chassis 5 causes a simultaneous pivoting of the first seat lever 8 in relation to the rear seat part fitting 3b and a forced pivoting of the second chassis lever 25 and the second seat lever 26, as a result of which movement synchronous with the pivoting movements the chassis and seat levers 7, 8, 25, 26, a defined displacement and pivoting of the rear seat part fitting 3b relative to the chassis 5 takes place.
- the displacement unit 2 is controlled according to the invention in such a way that, during the adjustment of the seating furniture item 1 from the upright sitting position to the lying position, the rear seat part fitting 3b is pushed forward by a displacement distance and the inclination is adjusted by an angular amount, with during a first Third of this displacement distance, the rear seat part fitting 3b 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.
- This movement sequence of the rear seat part fitting 3b in which during a first third of the displacement distance of the rear seat part fitting 3b between the upright sitting and the lying position of the chair 1, the predominant part of the inclination adjustment of the rear seat part fitting 3b and During the further approximately two-thirds of the displacement distance, an essentially linear displacement of the rear seat part fitting 3b takes place, enabling a desired two-stage movement sequence of the seating furniture 1, in which first the seat part 3 is inclined up to a so-called "lounge position" and only then the back part 4 is adjusted.
- a tension spring 11 is coupled on the one hand to the front seat part fitting 3a and on the other hand to the rear seat part fitting 3b in such a way that a displacement of the front seat part fitting 3a relative to the rear seat part fitting 3b, in the direction of the front edge of the seating furniture item 1, causes the tension spring 11 to be shortened.
- a first linear actuator 12 is coupled at a first end to the chassis 5 and at a second end to the rear seat part fitting 3b.
- a second linear actuator 13 is coupled at a first end to the rear seat part fitting 3b and at a second end to the foot part adjustment mechanism 9 .
- the first linear actuator 12 is coupled at a first end to the chassis 5 and at a second end to the rear seat part fitting 3b via a first cross brace 16 connected to the rear seat part fitting 3b, and
- the second linear actuator 13 is coupled at a first end to the first cross brace 16 and at a second end to the foot part adjustment gear 9 via a second cross brace 17 connected to the foot part adjustment gear 9 .
- the inventive arrangement of the linear actuators 12, 13 and the displacement unit 2 makes it possible, in contrast to the seating known from DE 20 2016 104 352 U1 and US 2019/0216221 A1, to be able to carry out a seat part inclination adjustment and a foot part adjustment independently of one another.
- the displacement unit 2 In the starting position or the upright seating position of the item of seating furniture 1, the displacement unit 2 is held in its starting position by the first linear actuator 12 articulated between the chassis 5 and the first crossbar 16, and by the second linear actuator acting between the first 16 and the second crossbar 17 13, the foot part 6 is held in the pivoted-in end position by means of the foot part-side stop element 19 acting between the seat part bracket 20 and the foot part adjusting mechanism 9, and the front seat part fitting 3a is in its displacement position relative to the rear seat part fitting 3b defined (Fig. 1, 2, 3).
- the first linear actuator 12 When actuated, the first linear actuator 12 generates a linear stroke consisting of a first and a second partial stroke, with the seat part 3 being moved by the displacement unit in an adjustment step of the seating furniture item 1 caused by the first partial stroke of the first linear actuator 12 from the upright sitting position to the lying position 2 is shifted forward and the rear area of the seat part 3 is lowered so that the seat part 3 is adjusted in inclination relative to the upright sitting position of the chair 1 (FIGS. 5, 6, 8, 9, 10, 11).
- This intermediate position of the item of seating furniture also referred to as the “lounge position”, caused by the first partial stroke of the first linear actuator 12, is the possibility of assuming a sitting position that the user feels is comfortable and more relaxed compared to the seating position of the item of seating furniture 1.
- the displacement unit 2 is used to move the seat part 3 further, essentially linearly, forwards relative to the chassis 5 and at the same time adjust the inclination of the back part 4 relative to the seat part 3 until it is reached the lying position of the chair 1 (Fig. 12, 13, 14).
- the second linear actuator 13 When actuated, the second linear actuator 13 generates a linear stroke consisting of a first and a second partial stroke, with one through the first partial stroke of the second linear actuator 13 brought about an adjustment step of the seating furniture item 1, while increasing the distance between the first transverse strut 16 and the second transverse strut 17, a seat depth adjustment takes place, in which the seat part 3, while increasing the distance from the back part adjustment mechanism 10, relative to the rear seat part fitting 3b is shifted (Figs. 4, 6, 9, 10, 11, 12, 13, 14).
- the tension spring 11 shortens during the adjustment step brought about by the first partial stroke of the second linear actuator 13 and thereby initially supports a displacement of the front seat part fitting 3a relative to the rear seat part fitting 3b until the depth adjustment of the seat part 3 is blocked by contact of the lever adjustment mechanism 14 with a stop element 15 on the seat part (Fig. 6).
- the advantage of the seat depth adjustment effected by the second linear actuator 13 is, on the one hand, the possibility for the user to adjust the seat depth according to the body size or the wishes of the user, and, on the other hand, the possibility of extending the lying length of the chair when the foot part is in the swiveled-out position in such a way that that a full contact surface for the user's feet is guaranteed.
- the inclination of the seat part 3 can be adjusted without pivoting the foot part 6 out or in, and a depth adjustment of the seat part 3 can be actuated both separately and independently of one another (FIGS. 4, 5, 8) and in combination with one another (FIGS. 6, 9, 10, 11, 12, 13, 14).
- the foot part 6 In the opposite direction of adjustment, due to the spring force of the tension spring 11 to be overcome, the foot part 6 first swivels in relative to the seat part 3 until the stop element 19 on the foot part comes into contact with the stop surface of the seat part strap 20, and then the seat part 3, against the spring force of the tension spring 11 moved relative to the rear seat part fitting 3b in the starting position.
- the invention is not limited to the exemplary embodiment, but is variable in many ways within the scope of the disclosure.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202021003057 | 2021-09-27 | ||
DE202021003057.3 | 2021-09-27 |
Publications (1)
Publication Number | Publication Date |
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WO2023046239A1 true WO2023046239A1 (en) | 2023-03-30 |
Family
ID=84043978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/DE2022/100701 WO2023046239A1 (en) | 2021-09-27 | 2022-09-21 | Piece of seating furniture with a dual-motor wallaway function and separate seat-depth and seat-inclination adjustment |
Country Status (1)
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WO (1) | WO2023046239A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004011998U1 (en) | 2004-07-30 | 2004-10-07 | Kintec Solution Gmbh | Chair has reclining back rest, seat and foot rest, seat being mounted on quasi-parallel lever system and foot rest being connected to tension belt which returns it to its initial position |
DE102014103536A1 (en) | 2014-03-14 | 2015-09-17 | Ferdinand Lusch Gmbh & Co Kg | Seating furniture with a chassis and a foot part which can be swiveled in relation to the chassis |
US20150272329A1 (en) * | 2014-03-28 | 2015-10-01 | L&P Property Management Company | Wall-proximity reclining mechanism with consistent-height seat |
DE202016104352U1 (en) | 2016-08-08 | 2016-08-18 | Ciar S.P.A. | seat |
US20190216221A1 (en) | 2018-01-12 | 2019-07-18 | L&P Property Management Company | Recliner seating mechanism with seat extension |
WO2021000994A1 (en) * | 2019-06-29 | 2021-01-07 | Michael Schuster | Seating furniture having dual-motor wall-away function |
WO2021000993A1 (en) * | 2019-06-29 | 2021-01-07 | Michael Schuster | Seating furniture having a wall-away function and a foot part that can be pivoted out |
-
2022
- 2022-09-21 WO PCT/DE2022/100701 patent/WO2023046239A1/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004011998U1 (en) | 2004-07-30 | 2004-10-07 | Kintec Solution Gmbh | Chair has reclining back rest, seat and foot rest, seat being mounted on quasi-parallel lever system and foot rest being connected to tension belt which returns it to its initial position |
DE102014103536A1 (en) | 2014-03-14 | 2015-09-17 | Ferdinand Lusch Gmbh & Co Kg | Seating furniture with a chassis and a foot part which can be swiveled in relation to the chassis |
US20150272329A1 (en) * | 2014-03-28 | 2015-10-01 | L&P Property Management Company | Wall-proximity reclining mechanism with consistent-height seat |
DE202016104352U1 (en) | 2016-08-08 | 2016-08-18 | Ciar S.P.A. | seat |
US20190216221A1 (en) | 2018-01-12 | 2019-07-18 | L&P Property Management Company | Recliner seating mechanism with seat extension |
WO2021000994A1 (en) * | 2019-06-29 | 2021-01-07 | Michael Schuster | Seating furniture having dual-motor wall-away function |
WO2021000993A1 (en) * | 2019-06-29 | 2021-01-07 | Michael Schuster | Seating furniture having a wall-away function and a foot part that can be pivoted out |
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