EP4292477A1 - Meuble d'assise - Google Patents

Meuble d'assise Download PDF

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Publication number
EP4292477A1
EP4292477A1 EP23178981.9A EP23178981A EP4292477A1 EP 4292477 A1 EP4292477 A1 EP 4292477A1 EP 23178981 A EP23178981 A EP 23178981A EP 4292477 A1 EP4292477 A1 EP 4292477A1
Authority
EP
European Patent Office
Prior art keywords
connecting element
seating furniture
receiving opening
arrangement
strips
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
Application number
EP23178981.9A
Other languages
German (de)
English (en)
Inventor
Michael Toth
Mag. PROBST (FH) Thomas
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.)
Ada Moebelfabrik GmbH
Original Assignee
Ada Moebelfabrik 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 Ada Moebelfabrik GmbH filed Critical Ada Moebelfabrik GmbH
Publication of EP4292477A1 publication Critical patent/EP4292477A1/fr
Pending legal-status Critical Current

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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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/448—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with resilient blocks
    • 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—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/405—Support for the head or the back for the back with double backrests
    • 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—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/445—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with bar or leaf springs

Definitions

  • the invention relates to seating furniture according to the preamble of claim 1.
  • seating furniture In addition to the actual seat, seating furniture also has a backrest. This backrest is firmly connected to the seat. In order to be compatible with people of different physical builds, these backrests have a padded backrest. The so-called softness is achieved through appropriately designed padding.
  • the upper part of the backrest in particular adapts very little to different people sitting on the seating furniture.
  • the backrest corresponds to a cantilever beam clamped on one side.
  • the upper area therefore has a deformation under load in relation to the lower area of the backrest.
  • this deformation - due to the required mechanical load-bearing capacity of the backrest - is so small that people hardly notice it. This slight deformation does not result in any adaptation of the seating furniture to the individual physique of different people.
  • the object of the invention is therefore to provide a seating furniture of the type mentioned, with which the disadvantages mentioned can be avoided, and which adapts flexibly to different people in the back area.
  • the back area or the backrest arrangement adapts individually and flexibly to different people who have sat on the corresponding seating furniture and whose backs rest on the backrest arrangement.
  • Such seating furniture can therefore be used in particular in areas in which the type of people sitting on it is expected to constantly change and where comfortable sitting is important is placed, for example in a theater or a lecture hall.
  • this seating furniture is advantageous for people who change over time, who grow or become smaller or whose weight changes significantly, for example due to illness.
  • the Fig. 1 to 3 show a preferred embodiment of a piece of seating furniture 1 comprising at least one seat arrangement 2 and at least one backrest arrangement 3, the backrest arrangement 3 having at least one strip 4, 8, 13, 14, the seat arrangement 2 comprising at least one receiving opening 5, and an end region 6 of the Strip 4, 8, 13, 14 is fastened within the receiving opening 5, a connecting element 7 being arranged between the end region 6 and the receiving opening 5, the connecting element 7 enclosing the end region 6, and the strip 4, 8, 13, 14 has a higher rigidity than the connecting element 7.
  • the back area or the backrest arrangement 3 adapts individually and flexibly to different people who have sat on the corresponding seating furniture and whose backs are leaning on the backrest arrangement 3.
  • Such seating furniture 1 can therefore be used in particular in areas in which a constantly changing type of people sitting on it is to be expected and value is placed on comfortable seating, for example in a theater or a lecture hall.
  • this seating furniture 1 is advantageous for people who change over time, who grow or become smaller or whose weight changes significantly, for example due to illness.
  • the seating furniture 1 is a device or an object which is intended for people to sit on and which has an area on one side against which the sitting person can lean with their back.
  • the seating furniture 1 is preferably an armchair and/or a chair and/or a bench and/or a sofa.
  • the seating is a piece of furniture that is free-standing and/or movable or can be freely positioned.
  • the seating furniture preferably has at least one supporting leg 15, in particular a predeterminable number of supporting legs 15.
  • the seating furniture 1 is firmly secured in a building or a vehicle, such as an airplane, ship, train and/or automobile.
  • the seating furniture then preferably has no legs 15.
  • a corresponding lower part can also be designed as a chest.
  • the seating furniture has a seat arrangement 2, which is intended to support the body part of a person intended for sitting, therefore the buttocks or podex.
  • a seat arrangement 2 which is intended to support the body part of a person intended for sitting, therefore the buttocks or podex.
  • this base part has a central opening, which is preferably not absolutely necessary.
  • a padded contact part (not shown) is arranged on the seat surface arrangement 2 shown, which can also be referred to as padding or padding part.
  • the seat arrangement 2 does not have such a large opening as in the Fig. 1 to 3 shown.
  • the seating furniture 1 is intended and designed accordingly so that a person sitting on it can lean backwards. Since in most cases this is done with the back of the person concerned, the corresponding part of the seating furniture 1 is referred to as the backrest arrangement 3.
  • the backrest arrangement 3 has at least one bar 4, 8, 13, 14.
  • the backrest arrangement 3 preferably has a first bar 4, a second bar 8, a third bar 13 and a fourth bar 14.
  • the backrest arrangement 3 can also include a smaller or a larger predeterminable number of strips 4, 8, 13, 14.
  • the strips 4, 8, 13, 14 can have different shapes. Each bar 4, 8, 13, 14 preferably has a straight longitudinal extension. Therefore, the strips 4, 8, 13, 14 are not rounded or angled - without being subjected to the force of a seated person.
  • the strips 4, 8, 13, 14 can have different cross-sectional shapes and different cross-sectional areas. All strips 4, 8, 13, 14 of one and the same piece of seating furniture 1 preferably have the same or the same cross-sectional shapes and/or the same or the same cross-sectional areas.
  • the preferred embodiment according to Fig. 1 to 3 has a partially round, in particular essentially circular or elliptical, central cross-section, which is expanded on two sides by a first and a second rectangular cross-section. This preferred embodiment can simply be made from two metal strips, in particular sheet metal strips, which have previously been correspondingly mechanically deformed.
  • the strips 4, 8, 13, 14 are preferably each made of the same material.
  • the strips 4, 8, 13, 14 are formed comprising a metal, preferably a steel or an aluminum alloy, and/or a plastic.
  • the strips are particularly preferred as a fiber composite material, in particular comprising glass fibers and/or aramid fibers and/or carbon fibers, educated.
  • the fibers made of glass, in particular fiberglass, aramid and/or carbon are embedded circumferentially in a plastic. The fibers thus form a core of the strips 4, 8, 13, 14 and are covered by the plastic or bordered on the sides.
  • the strip 4, 8, 13, 14 can also be designed as a sandwich construction.
  • the fibers preferably glass, in particular fiberglass, aramid and/or carbon, form a jacket which is arranged on a plastic core or whose individual fibers are spaced apart by the plastic core.
  • An outer surface structure of the jacket is preferably covered by a material, in particular a plastic.
  • the strips 4, 8, 13, 14 can also be made from wood, in particular bamboo. Wood fibers can form the core of the strips 4, 8, 13, 14, which are covered by a plastic. Furthermore, composite materials and composite structures made of several different materials can also preferably be provided.
  • the strips 4, 8, 13, 14 run essentially perpendicularly or vertically.
  • Each bar 4, 8, 13, 14 is preferably attached - each in a two-dimensional measuring surface - at a substantially right angle of 80 to 100 degrees to the seat arrangement.
  • An - independent - inclination of the strips 4, 8, 13, 14 always runs away from the seat arrangement 2.
  • each strip 4, 8, 13, 14 is only connected to the seat surface arrangement 2 in a mechanically load-bearing manner. This means that the strips 4, 8, 13, 14 are arranged in a mechanically connected manner to one another. This includes all connections that are deliberately intended for power transmission, but does not include padding or similar, in particular mainly visually effective, covers, which are preferably provided and permitted.
  • the seat arrangement 2 has at least one receiving opening 5.
  • the seat surface arrangement 2 preferably has such a receiving opening for each bar 4, 8, 13, 14.
  • the seat surface arrangement 2 comprises at least one receiving opening support part 11. This receiving opening support part 11 is attached to an upper side of the base part of the seat surface arrangement 2, in particular comprising screw connections. If a receiving opening supporting part 11 is present, the at least one receiving opening 5 is arranged in the receiving opening supporting part 11.
  • the seat surface arrangement 2 includes a support bearing part 12.
  • This support bearing part 12 - whose construction and purpose will be discussed later - is preferably attached to the receiving opening support part 11.
  • the receiving opening support part 11 is arranged - at least in some areas - between the top of the seat surface arrangement 2 and the support bearing part 12.
  • the support bearing part 12 only extends over one of the two longer sides of the receiving opening support part 11, which can also be referred to as the rear side of the receiving opening support part 11 from the perspective of the sitting person.
  • the at least one strip 4, in particular each of the plurality of strips 4, 8, 13, 14, has an end region 6, which is located on the positioning underside of the strip 4, 8, 13, 14. To fasten the strip 4, 8, 13, 14, the respective end region 6 is arranged within the respective receiving opening 5.
  • a connecting element 7 is arranged between the end region 6 and the receiving opening 5, and that the connecting element 7 encloses the end region 6.
  • the strip 4, 8, 13, 14 or their end region 6 therefore have no direct mechanical contact with the receiving opening 5, but only have contact with the connecting element 7.
  • the end region 6 is enclosed by the connecting element 7 in particular in a form-fitting manner.
  • the connecting element 7 itself is a hollow body whose outer shape corresponds to the inner dimensions and the corresponding shape of the receiving opening 5.
  • the inner shape of the connecting element 7 or its opening is adapted to the outer structure of the bar 4, 8, 13, 14 or the end region 6 of the bar 4, 8, 13, 14, which bar 4, 8, 13, 14 to it is intended to be held in the corresponding connecting element 7.
  • the opening of the connecting element 7 can be designed as a through opening. It is preferably provided that the opening of the connecting element 7 is closed on its underside. This has the advantage that the resistance on the lower end face of the bar 4, 8, 13, 14 can be kept low, thereby supporting the displacement of the bar 4, 8, 13, 14 under the influence of force. In particular, this can prevent the lower end face of the bar 4, 8, 13, 14 from digging into the seat arrangement 2. Such physical penetration would counteract the change in position or the tilting of the connecting element 7 and instead lead to long-term damage to the seat arrangement 2. This can be prevented by a lower closure or a blind hole-like shape of the corresponding opening of the connecting element 7.
  • the strip 4, 8, 13, 14, the receiving opening 5 and the connecting element 7 preferably have surface structures which resist movement of these parts relative to one another.
  • the bar 4, 8, 13, 14 has a higher rigidity than the connecting element 7.
  • the bar 4, 8, 13, 14 has a first rigidity, in particular a bending rigidity.
  • the connecting element 7 has a second rigidity, in particular a rigidity relating to bending deformation.
  • the first stiffness is greater than the second stiffness.
  • the bending angle of the bar 4, 8, 13, 14 is to be determined relative to the local longitudinal extent of the end region 6, even if its position shifts itself - due to loading and deformation of the connecting element 7.
  • the deformation of the connecting element 7 can be determined by the angle by which the position of the end region 6 has changed under the influence of the load.
  • the connecting element 7 preferably has a Shore A hardness between 60 and 100, preferably between 70 and 90, in particular essentially approximately 80. It has been shown that these hardeners enable both a certain dimensional stability and deformability.
  • the connecting element 7 has a modulus of elasticity of less than 10 GPa or 10,000 N/mm 2 . This can specifically ensure that the connecting element 7 deforms sufficiently and tilting of the bar 4, 8, 13, 14 as a whole is supported.
  • the connecting element 7 is designed to be viscoelastic and/or rubber-elastic. These properties have proven themselves in practice.
  • the connecting element 7 is designed as an elastomer. This ensures a high level of flexibility.
  • the connecting element 7 is designed as a thermoplastic elastomer. This thermoplastic elastomer preferably has a Shore A hardness of 80.
  • the connecting element 7 is designed as plastic. This means that there is a wide range of possibilities for manufacturability and a possibility of influencing the properties of the seating furniture 1 simply by selecting a specific plastic.
  • each bar 4, 8, 13, 14 has an end region 6, that the seat surface arrangement 2 has a predeterminable plurality of receiving openings 5, that each end region 6 is arranged in a separate receiving opening 5, and that each End region 6 is fastened within the respectively assigned receiving opening 5 by means of a connecting element 7.
  • a connecting element 7 In the Fig. 1 to 3 is an embodiment with four strips 4, 8, 13, 14 are shown, which are placed in four receiving openings 5 and are each held by a connecting element 7.
  • each receiving opening 5 It is possible for a separate or individual or physically independent connecting element 7 to be arranged in each receiving opening 5. As a result, the receiving opening support part 11 can be attached directly to the top of the seat assembly 2. Furthermore, this makes it possible to use connecting elements 7 that are different in terms of material technology.
  • At least a first separate connecting element 7 has a first rigidity, in particular a first modulus of elasticity, and that at least a second separate connecting element 7 has a second rigidity, in particular a second modulus of elasticity, and that the first Stiffness is different from the second stiffness.
  • the first separate connecting element 7 consists of a first material and the second separate connecting element 7 consists of a second material.
  • the two inner strips 4, 13 of the four strips 4, 8, 13, 14 consist of a first material with a first modulus of elasticity
  • the two outer strips 8, 14 of the four strips 4, 8, 13, 14 consist of a second material with a second modulus of elasticity, and that the second modulus of elasticity is greater than the first modulus of elasticity.
  • the connecting elements 7 are each designed as a portion of a common connecting element body 16.
  • the individual connecting elements 7 are each designed as a part or a partial area of the entire connecting element body 16, therefore of the same body or object. Consequently, these connecting elements 7 are all made of the same material and have the same properties.
  • Fig. 3 It is clearly visible how the connecting element body 16 extends on its underside on both sides beyond the parts that rise upwards or in the direction of the bar 4. The connecting element body 16 therefore has a large lower one
  • the receiving opening support part 11 itself holds or fastens the connecting element body 16 to the top of the seat assembly 2.
  • the support bearing part 12 is also clearly visible in a sectional view.
  • the support bearing part 12 is shaped and arranged in such a way that it is very close to the side of the strips 4, 8, 13, 14.
  • the strips 4, 8, 13, 14 do not touch the support bearing part 12 in the unloaded state.
  • Direct physical contact between the strips 4, 8, 13, 14 and the support bearing part 12 can therefore be completely ruled out as long as the strips 4, 8, 13, 14 are not subject to a predetermined load.
  • a predeterminable load or force can be caused in particular by the back of a sitting text person.
  • the upper edge of the support bearing part 12 represents a support for the bending or deformation process of the bar 4, 8, 13, 14. This can reduce the load and, above all, the deformation of the connecting element 7 can be reduced and its lifespan increased.
  • the connecting element 7 is therefore clearly subjected to pressure on one side only and over its entire surface. Without the support bearing part 12, the support would be undefined within the connecting element 7, which is then heavily loaded on both sides directly on the bearing.
  • the present invention also includes a corresponding arrangement with only a single strip 4.

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  • Special Chairs (AREA)
EP23178981.9A 2022-06-15 2023-06-13 Meuble d'assise Pending EP4292477A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT500962022 2022-06-15

Publications (1)

Publication Number Publication Date
EP4292477A1 true EP4292477A1 (fr) 2023-12-20

Family

ID=86764568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23178981.9A Pending EP4292477A1 (fr) 2022-06-15 2023-06-13 Meuble d'assise

Country Status (1)

Country Link
EP (1) EP4292477A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4869552A (en) * 1988-09-14 1989-09-26 Shelby Williams Industries, Inc. Flexible backrest assembly for a chair
KR200175104Y1 (ko) * 1999-10-20 2000-03-15 조정범 쿠션의자

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4869552A (en) * 1988-09-14 1989-09-26 Shelby Williams Industries, Inc. Flexible backrest assembly for a chair
KR200175104Y1 (ko) * 1999-10-20 2000-03-15 조정범 쿠션의자

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