EP4266950A1 - Seating furniture item with telescopic leg support element and separate seat inclination adjustment means - Google Patents
Seating furniture item with telescopic leg support element and separate seat inclination adjustment meansInfo
- Publication number
- EP4266950A1 EP4266950A1 EP21854739.6A EP21854739A EP4266950A1 EP 4266950 A1 EP4266950 A1 EP 4266950A1 EP 21854739 A EP21854739 A EP 21854739A EP 4266950 A1 EP4266950 A1 EP 4266950A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seat part
- articulated
- leg rest
- articulated lever
- lever
- 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
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 230000001186 cumulative 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
- A47C1/034—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
-
- 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 seating furniture with a telescopic leg rest element, with a seat part, a back part, a chassis and a leg rest pivotably connected to the seat part and/or to the chassis, the seating furniture being adjustable between a sitting and a lying position, the leg rest being in the seated position is pivoted in essentially below the seat part and in the reclining position is pivoted out in front of the seat part in such a way that the seat part is extended by the legrest, the legrest comprising two rails which are pivotably articulated on the seat part and on which the telescoping legrest element is arranged so that it can be moved in the longitudinal direction of the rails is, the legrest element being retracted when the legrest is pivoted in and being extended when the legrest is pivoted out to increase the length of the legrest.
- Such seating furniture usually has a continuous upholstery extending over the seat part and leg rest.
- the adjustment fitting of the seating furniture must be designed in such a way that the upholstery is tightened when the leg rest is folded out.
- leg rest In order to achieve this, the leg rest must be pivoted and extended at the same time when it is unfolded.
- the pivoting of the legrest relative to the seat part is coupled with a simultaneous displacement and inclination adjustment of the seat part relative to the chassis, so that an adjustment of the inclination of the seat part always causes the legrest to pivot out or inwards synchronously with the movement.
- the disadvantage here is that it is not possible for the user to adjust the inclination of the seat part and the leg rest independently of one another.
- the invention is based on the object of further developing a piece of seating furniture of the generic type in such a way that an adjustment of the inclination of the seat part and an adjustment of the leg rest can be actuated independently of one another.
- the features according to the invention make it possible, starting from the seating position of the seating furniture item, in a first adjustment step effected by a first partial stroke of a linear actuator, for the seat part to be displaced forwards and the rear area of the seat part to be lowered and the front area of the seat part to be raised, so that the inclination of the seat part is adjusted relative to the sitting position, the leg rest not yet being swung out in this first intermediate position of the seating furniture item, also known as the “lounge position”.
- a second adjustment step caused by a second partial stroke of the linear actuator, the leg rest is swiveled out in front of the seat part without further adjustment of the seat part, whereby a second intermediate position, also referred to as a "relax position", is reached.
- a piece of seating furniture according to the present invention offers the advantage of an additional function, in that the user can adopt a more relaxed sitting posture compared to the sitting position of the piece of seating furniture without the leg rest being swiveled out, thereby increasing the adjustment comfort of a piece of seating furniture according to the invention compared to the seating furniture known from DE102014103536A1 and DE202004011998U1 is increased.
- Fig. 1 a piece of furniture according to the invention, in the lying position of the piece of furniture (right
- FIG. 2 shows a piece of furniture according to the invention, in the seating position of the piece of furniture
- FIG. 3 shows a piece of seating furniture according to the invention as shown in FIG. 2, the seat inclination adjusted
- FIG. 4 shows a piece of seating furniture according to the invention as shown in FIG. 3, with a partially pivoted
- FIG. 5 shows a piece of seating furniture according to the invention with the seat part adjusted in inclination and leg rest swung out ("relax position");
- FIG. 6 a piece of seating furniture according to the invention according to FIG. 1 , in a detailed view;
- Fig. 7 a piece of seating furniture according to the invention in a sectional view, in the sitting position of the
- FIG. 8 shows a piece of seating furniture according to the invention according to FIG. 7, with the seat angle adjusted
- FIG. 9 shows a piece of seating furniture according to the invention in a sectional view, with the inclination of the seat part adjusted and the leg rest swiveled out (“relaxation position”);
- a piece of seating furniture 1 consists of a chassis 5, a seat part 3, a back part 4 and a legrest 6 pivotably connected to the seat part 3, the seating furniture item 1 being moved from a sitting position (Fig. 2) to the rear edge of the seating furniture item 1, in which the legrest 6 is pivoted essentially below the seat part 3, can be adjusted into a reclining position (Fig. 1) shifted towards the front edge of the piece of seating furniture 1, in which the leg rest 6 is swiveled out in front of the seat part 3 in such a way that the seat part 3 is extended by the leg rest 6 .
- the terms “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 leg rest 6 is designed in two parts, one part of the leg rest 6 being formed by two rails 9 pivotably linked to the seat part 3 and another part being formed by a telescoping leg rest element 2 which is arranged to be movable in the longitudinal direction of the rails 9, the telescoping leg rest element 2 being retracted with the leg rest 6 pivoted in (FIGS. 2, 3, 7, 8, 10) and extended with the leg rest 6 pivoted out to increase the length of the leg rest 6 (FIGS. 1, 5, 6, 9).
- the seat part 3 is pushed forwards relative to the chassis 5 via a pivoting guide 26 and at the same time the inclination is adjusted, with the pivoting guide 26 having a front 7 and a rear link lever 8 has, which form a four-bar linkage with the seat part 3 and the chassis 5 (Fig. 5).
- the swivel guide 26 is subjected to a force by means of at least one tension spring 25, the tension spring 25 acting between the seat part 3 and the chassis 5 in such a way that the tension spring 25 is shortened during the adjustment movement of the seat part 3 in the direction of the front edge of the seat furniture item 1 (Fig. 2, 6).
- a first 10 and/or a second articulated lever 11 are/is articulated on the seat part 3, wherein, when the chair 1 is in the sitting position, a joint between the two end articulation points 18, 19 of at least one of the first 10 and/or the second articulated lever 11 is formed longitudinal axis is arranged obliquely to the seat part 3 and the end articulation point 18 of this articulated lever facing the seat part 3 is positioned closer to a vertical plane spanned by the front edge 15 of the seat part than the end articulation point 19 of this articulated lever facing away from the seat part 3.
- At least one of the first 10 and/or the second articulated lever 11 has a stop element 28 which, during the pivoting movement of the leg rest 6, comes into contact with a stop surface of a seat part strap 29 connected to the front area of the seat part 3 (Fig. 2).
- the end articulation point facing the seat part and “the end articulation point facing away from the seat part” mean the shortest distance between an end articulation point of an articulated lever and the seat part, with an end articulation point facing the seat part of a Articulated lever has a shorter distance to the seat part than a seat part facing away from the end hinge point of this articulated lever.
- the first 10 and/or the second articulated lever 11 are/is coupled to the telescoping leg rest element 2 in such a way that an adjustment of one of the first 10 and/or the second articulated lever 11 relative to the seat part 3 causes the leg rest 6 to swivel out or in relative to the seat part 3 and a simultaneous displacement of the telescopic leg rest element 2 along the rails 9 causes.
- a linear actuator 23 is coupled at a first end to the chassis 5 and at a second end to the first 10 and/or the second articulated lever 11 via a cross brace 24 connected to the first 10 or the second articulated lever 11 (FIGS. 6, 7, 8, 9).
- the linear actuator 23 articulated between the chassis 5 and the cross brace 24 causes the leg rest 6 to be in the pivoted-in end position by means of the stop element 28 acting between the seat part bracket 29 and the first 10 and/or the second articulated lever 11 held.
- the linear actuator 23 When actuated, the linear actuator 23 generates a linear stroke, consisting of at least a first and a second partial stroke, with the linear actuator 23 using a first partial stroke, starting from the seating position of the seating furniture item 1, using the pivot guide 26 to move the seat part 3 relative to the chassis front and a simultaneous inclination adjustment of the seat part 3 until the rear link lever 8 of the swivel guide 26 comes into contact with the chassis-side stop element 27 and the swivel guide 26 is thereby blocked, with the leg rest 6 not swiveling out or in relative to the seat part during this first partial stroke of the linear actuator 23 3 takes place (Fig. 3, 8).
- the tension spring 25 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 leg rest 6 pivoting relative to the seat part 3.
- the front edge of the seat part 3 is at a greater distance from the support plane of the chair 1 than when the chair 1 is in the sitting position, which means that a longer leg rest 6 can be used due to the greater pivoting space available.
- the further advantage of this first intermediate position of the seating item 1, which is reached at the end of the first adjustment step, is the possibility for the user to carry out an additional adjustment function, also referred to as a “lounge position” compared to the seating items known from DE102014103536A1 and DE202004011998U1 (Fig. 3, 8).
- a piece of seating furniture of the present invention offers in a structurally simple manner on the one hand the advantage of a longer leg rest 6 compared to the generic seating furniture and thus improved lying comfort, and on the other hand the advantage of improved seating comfort due to the possibility for the user of a more relaxed seating position compared to the seating furniture to be able to take a sitting position.
- a second adjustment step of the item of seating furniture 1 from the sitting to the reclining position which is effected by a second partial stroke of the linear actuator 23, while maintaining the tilted and displaced position of the seat part 3 relative to the chassis 5 achieved at the end of the first partial stroke and maintaining the position of the back part 4 relative to the seat part 3, the leg rest 6 swings out relative to the seat part 3 until the leg rest 6 has reached the swung-out end position and the seating furniture 1 has reached a second intermediate position, also referred to as a “relaxation position” (Fig. 5, 9).
- the leg rest 6 is pivoted by means of a lever adjustment mechanism articulated on the seat part 3, the first articulated lever 10 and the second articulated lever 11 being articulated on the one hand in each case on a front region of the seat part 3 and on the other hand in each case on a coupling lever 16, with , a third 12 and a fourth articulated lever 13 have an orientation in which one between the two end articulation points 20, 21 of at least one of the third 12 and/or the fourth articulated lever 13 is arranged obliquely to the seat part 3 and the end articulation point 21 of this articulated lever facing away from the seat part 3 is positioned closer to a vertical plane spanned by the seat part front edge 15 is the end articulation point 20 of this articulated lever that faces the seat part 3, with the third articulated lever 12 and the fourth articulated lever 13 being connected on the one hand to the coupling lever 16 and on the other hand to their end articulation points 20, 22 that face the seat part 3 when the item of seating furniture 1 is in the sitting position are each
- a middle area of the articulated lever does not mean the exact geometric center, but rather the entire area of an articulated lever lying between the two end articulation points.
- the first 10 and/or the second articulated lever 11 are pivoted in such a way that the coupling lever 16 is pushed forward in relation to the seat part 3, with the third 12 and the fourth articulated lever 13 be pivoted relative to the coupling lever 16 and the fifth articulated lever 14 relative to the coupling lever 16 is pushed forward.
- the first 10 and/or the second articulated lever 11 on the one hand and the third 12 and/or the fourth articulated lever 13 on the other are arranged in such a way that during approximately the first half of the pivoting of the seating furniture item 1 from the sitting to the lying position, the coupling lever 16 is opposite the seat part 3 is lowered, at the same time all sections of the fifth articulated lever 14 relative to the coupling lever 16 are raised.
- the lowering of the coupling lever 16 is thus more or less compensated for by a simultaneous lifting of the fifth articulated lever 14 relative to the coupling lever 16, which has the effect that the articulation point of the fifth articulated lever 14 on the telescoping legrest element 2 during a first phase of pivoting from the seat to the Lying position of an almost linear, or a "flat" movement curve near the front edge of the seat part 15 follows.
- the legrest 6 is pivoted during approximately the first half of the adjustment of the chair 1 from the sitting to the lying position and the legrest element 2 is not shifted or is only slightly shifted relative to the rails 9 (FIG. 4).
- leg rest element 2 Only when the leg rest 6 is pivoted further in the direction of the lying position of the chair 1 is the leg rest element 2 shifted in the longitudinal direction of the rails 9 until it reaches the extended end position (FIGS. 1, 5, 6, 9).
- 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
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202020005303 | 2020-12-28 | ||
DE102021004872 | 2021-09-25 | ||
PCT/DE2021/000213 WO2022144055A1 (en) | 2020-12-28 | 2021-12-27 | Seating furniture item with telescopic leg support element and separate seat inclination adjustment means |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4266950A1 true EP4266950A1 (en) | 2023-11-01 |
Family
ID=80218442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21854739.6A Pending EP4266950A1 (en) | 2020-12-28 | 2021-12-27 | Seating furniture item with telescopic leg support element and separate seat inclination adjustment means |
Country Status (4)
Country | Link |
---|---|
US (1) | US20230337823A1 (en) |
EP (1) | EP4266950A1 (en) |
DE (1) | DE112021006690A5 (en) |
WO (1) | WO2022144055A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10441081B2 (en) * | 2017-06-07 | 2019-10-15 | Ciar S.P.A. | Seating and lounging furniture |
Family Cites Families (3)
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 |
WO2014071924A1 (en) * | 2012-11-12 | 2014-05-15 | Michael Schuster | Chair with a functional fitting |
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 |
-
2021
- 2021-12-27 EP EP21854739.6A patent/EP4266950A1/en active Pending
- 2021-12-27 WO PCT/DE2021/000213 patent/WO2022144055A1/en active Application Filing
- 2021-12-27 DE DE112021006690.0T patent/DE112021006690A5/en active Pending
-
2023
- 2023-06-28 US US18/215,366 patent/US20230337823A1/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10441081B2 (en) * | 2017-06-07 | 2019-10-15 | Ciar S.P.A. | Seating and lounging furniture |
Also Published As
Publication number | Publication date |
---|---|
WO2022144055A1 (en) | 2022-07-07 |
DE112021006690A5 (en) | 2024-02-29 |
US20230337823A1 (en) | 2023-10-26 |
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