WO2022144056A1 - Piece of seating furniture having a telescoping leg-rest element - Google Patents
Piece of seating furniture having a telescoping leg-rest element Download PDFInfo
- Publication number
- WO2022144056A1 WO2022144056A1 PCT/DE2021/000214 DE2021000214W WO2022144056A1 WO 2022144056 A1 WO2022144056 A1 WO 2022144056A1 DE 2021000214 W DE2021000214 W DE 2021000214W WO 2022144056 A1 WO2022144056 A1 WO 2022144056A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seat part
- leg rest
- articulated
- lever
- articulated lever
- Prior art date
Links
- 230000008878 coupling Effects 0.000 claims abstract description 17
- 238000010168 coupling process Methods 0.000 claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 claims abstract description 17
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 2
- 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
- A47C1/035—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
- A47C1/034—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
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
- A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
- A47C7/5066—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation
- A47C7/5068—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation actuated by linkages
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.
- a piece of seating furniture has become known from publication WO2014/071924A1, in which this object is achieved by a two-part leg rest, the parts of the leg rest being displaceable in relation to one another when pivoted.
- the invention is based on the object of further developing a piece of seating furniture of the generic type in such a way that the lying comfort of the seating furniture item is improved.
- the features according to the invention make it possible to provide a piece of seating furniture of the generic type in which a legrest element is arranged so that it can be moved in the longitudinal direction of two rails articulated on the seat part in such a way that the legrest element is not or is only slightly adjusted relative to the rails.
- leg rest element Only in about the second half of the pivoting of the leg rest from the sitting to the lying position is the leg rest element shifted relative to the rails into an extended position according to the invention, which allows the use of a longer leg rest element compared to the seating furniture known from WO2014/071924A1.
- a lever geometry according to the invention of the lever adjustment mechanism used to pivot the legrest and to transfer the legrest element into the retracted/extended position enables a greater travel distance compared to the seating furniture known from WO2014/071924A1, so that the legrest element can be pulled out further compared to the rails.
- 1 shows a piece of furniture according to the invention in the lying position of the piece of furniture
- 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 according to FIG. 2, with the seat angle 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 the leg rest swiveled out;
- FIG. 6 shows a piece of seating furniture according to the invention according to FIG. 5 in a detailed view
- FIG. 7 a piece of seating furniture according to the invention according to FIG. 2 in a detailed view.
- 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 .
- 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 formed in two parts, one part of the leg rest 6 being pivoted by two rails 9 hinged to the seat part 3 and another part by a telescopic legrest element 2 is formed, which is arranged to be movable in the longitudinal direction of the rails 9, the telescoping legrest element 2 being retracted when the legrest 6 is pivoted in (Fig. 2, Fig. 3, Fig. 7) and when the legrest 6 is pivoted out to increase the length of the Leg rest 6 is extended (Fig. 1, Fig. 5).
- a first 10 and/or a second articulated lever 11 are/is articulated on the seat part 3, wherein, in the sitting position of the chair 1, 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 terms “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 of an articulated lever facing the seat part having a shorter distance to the seat part as an end pivot point of this articulated lever facing away from the seat part.
- 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.
- 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 a longitudinal axis formed 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 at an angle to the seat part 3 and the dem seat part 3
- the end articulation point 21 of this articulated lever that faces away is positioned closer to a vertical plane spanned by the front edge 15 of the seat part than 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 on the one hand on the coupling lever 16 and on the other hand with their , in the seated position of the piece of seating furniture 1 , the end articulation points
- 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 hand are arranged in such a way that during approximately the first half of the pivoting of the chair 1 from the sitting to the lying position, the coupling lever 16 is opposite the seat part 3 is lowered, with all sections of the fifth articulated lever 14 being raised relative to the coupling lever 16 at the same time.
- 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 displaced in the longitudinal direction of the rails 9 until the extended end position is reached (FIG. 1, FIG. 5, FIG. 6).
- 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 shortens during the adjustment movement of the seat part 3 in the direction of the front edge of the seating furniture item 1 (Fig. 2, figure 6).
- 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 (FIG. 6).
- 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).
- 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 in the sitting position of the chair 1, which means that a longer leg rest 6 can be used due to the greater pivoting space available.
- 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 be able to carry out an additional adjustment function, also referred to as the “lounge position”, compared to the seating item known from WQ2014/071924A1 (Fig. 3).
- 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 Seat furniture to be able to take a more relaxed 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, Fig. 6). .
- the invention is not limited to the exemplary embodiment, but is variable in many ways within the scope of the disclosure.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180087806.7A CN116829031A (en) | 2020-12-28 | 2021-12-27 | Seating furniture with telescopic leg rest element |
DE112021006693.5T DE112021006693A5 (en) | 2020-12-28 | 2021-12-27 | Seating furniture with telescopic leg rest element |
EP21854740.4A EP4266949A1 (en) | 2020-12-28 | 2021-12-27 | Piece of seating furniture having a telescoping leg-rest element |
US18/215,358 US20230337824A1 (en) | 2020-12-28 | 2023-06-28 | Piece of seating furniture having a telescoping leg-rest element |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202020005305 | 2020-12-28 | ||
DE202020005305.8 | 2020-12-28 | ||
DE102021004871 | 2021-09-25 | ||
DE102021004871.7 | 2021-09-25 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/215,358 Continuation US20230337824A1 (en) | 2020-12-28 | 2023-06-28 | Piece of seating furniture having a telescoping leg-rest element |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022144056A1 true WO2022144056A1 (en) | 2022-07-07 |
Family
ID=80218324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2021/000214 WO2022144056A1 (en) | 2020-12-28 | 2021-12-27 | Piece of seating furniture having a telescoping leg-rest element |
Country Status (4)
Country | Link |
---|---|
US (1) | US20230337824A1 (en) |
EP (1) | EP4266949A1 (en) |
DE (1) | DE112021006693A5 (en) |
WO (1) | WO2022144056A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004016889U1 (en) * | 2004-10-29 | 2004-12-30 | Josef Steltemeier Gmbh | Chair has fixed seat and adjustable backrest linked by lever action to telescopic leg-rest located under seat |
WO2014071924A1 (en) | 2012-11-12 | 2014-05-15 | Michael Schuster | Chair with a functional fitting |
-
2021
- 2021-12-27 WO PCT/DE2021/000214 patent/WO2022144056A1/en active Application Filing
- 2021-12-27 EP EP21854740.4A patent/EP4266949A1/en active Pending
- 2021-12-27 DE DE112021006693.5T patent/DE112021006693A5/en active Pending
-
2023
- 2023-06-28 US US18/215,358 patent/US20230337824A1/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004016889U1 (en) * | 2004-10-29 | 2004-12-30 | Josef Steltemeier Gmbh | Chair has fixed seat and adjustable backrest linked by lever action to telescopic leg-rest located under seat |
WO2014071924A1 (en) | 2012-11-12 | 2014-05-15 | Michael Schuster | Chair with a functional fitting |
Also Published As
Publication number | Publication date |
---|---|
EP4266949A1 (en) | 2023-11-01 |
US20230337824A1 (en) | 2023-10-26 |
DE112021006693A5 (en) | 2024-02-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2051606B1 (en) | Armchair | |
EP3965616B1 (en) | Seating furniture having a wall-away function and a foot part that can be pivoted out | |
EP3965617B1 (en) | Seating furniture having dual-motor wall-away function | |
DE2601691C3 (en) | Lever adjustment gear for reclining chairs | |
DE202016104973U1 (en) | Articulated lever system for a swing-out footrest of a seat | |
WO2014124638A1 (en) | Fitting system for adjusting a seat and seat with such a fitting system | |
DE102015001833A1 (en) | Seating furniture with swing-out footrest and Hebelverstellgetriebe for this | |
WO2022144056A1 (en) | Piece of seating furniture having a telescoping leg-rest element | |
DE102018108897A1 (en) | Seating furniture with swing-out footboard | |
EP1974633A2 (en) | Seating | |
EP4266950A1 (en) | Seating furniture item with telescopic leg support element and separate seat inclination adjustment means | |
WO2014071924A1 (en) | Chair with a functional fitting | |
WO2007019893A1 (en) | Armchair with extendable legrest | |
WO2023046238A1 (en) | Piece of seating furniture with a single-motor wallaway function and a co-rotating backrest gear | |
WO2023046239A1 (en) | Piece of seating furniture with a dual-motor wallaway function and separate seat-depth and seat-inclination adjustment | |
WO2018046065A1 (en) | Chair with pivotable foot rest | |
WO2023046242A1 (en) | Piece of seating furniture with just one displacement unit for seat-part and back-part adjustment | |
DE102016116893A1 (en) | Seating furniture with swing-out footrest | |
WO2023046243A1 (en) | Item of seating furniture with separate seat depth, seat incline and footrest adjustment | |
DE102016116894A1 (en) | Seating furniture with swing-out footrest | |
DE102016116891A1 (en) | Seating furniture with swing-out footrest | |
WO2023046240A1 (en) | Item of seating furniture with a seat-backrest lounge module and a concurrent backrest drive | |
DE2801307A1 (en) | Adjustable reclining chair with extending leg rest - incorporates parallelogram lever system swivel connected to three-section lever system | |
DE202020106493U1 (en) | Seating furniture or seating and reclining furniture | |
DE102014002139B4 (en) | Adjustable gear for a swing-out footrest of a chair and seating with such a variable speed |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21854740 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202180087806.7 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2021854740 Country of ref document: EP Ref document number: 112021006693 Country of ref document: DE |
|
ENP | Entry into the national phase |
Ref document number: 2021854740 Country of ref document: EP Effective date: 20230728 |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: R225 Ref document number: 112021006693 Country of ref document: DE |