EP2016868A1 - Noyau pouvant être extrait pour matelas et coussins de meubles - Google Patents

Noyau pouvant être extrait pour matelas et coussins de meubles Download PDF

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Publication number
EP2016868A1
EP2016868A1 EP07405208A EP07405208A EP2016868A1 EP 2016868 A1 EP2016868 A1 EP 2016868A1 EP 07405208 A EP07405208 A EP 07405208A EP 07405208 A EP07405208 A EP 07405208A EP 2016868 A1 EP2016868 A1 EP 2016868A1
Authority
EP
European Patent Office
Prior art keywords
core
incisions
rows
orientation
mattress
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.)
Withdrawn
Application number
EP07405208A
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German (de)
English (en)
Inventor
Josef Stieger
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.)
DOC AG
Original Assignee
DOC AG
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 DOC AG filed Critical DOC AG
Priority to EP07405208A priority Critical patent/EP2016868A1/fr
Publication of EP2016868A1 publication Critical patent/EP2016868A1/fr
Withdrawn legal-status Critical Current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
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
    • A47C27/144—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities inside the mattress or cushion

Definitions

  • the present invention relates to a core for a mattress or a furniture upholstery and a mattress made therewith or a furniture upholstery fabricated therewith.
  • cores are often used from a foam plastic material or on the basis of vulcanized latex.
  • the core is usually provided with recesses or openings to ensure good air circulation. For this purpose, either elaborate shapes are necessary in the production, or the openings are subsequently cut or punched out, waste being obtained.
  • a mattress is known whose core has rows of parallel, equally spaced and equally long incisions which pass through the core through its thickness.
  • the incisions of adjacent rows are set against each other on the gap.
  • the core can be pulled apart in a pulling direction running transversely to the direction of the incisions, wherein the incisions form diamond-shaped openings.
  • the core is provided with openings for air circulation, without causing waste.
  • a disadvantage of this known mattress core is that the core must be kept permanently under a bias in the pulling direction, otherwise it would contract again by itself.
  • the core is held by a carrier which surrounds the core either as a rigid ring or is designed as a cover plate increased compressive strength.
  • a carrier which surrounds the core either as a rigid ring or is designed as a cover plate increased compressive strength.
  • a hard edge or a corresponding hard cover plate are usually undesirable.
  • the invention also provides a mattress made with such a core and a corresponding furniture cushion.
  • the core of the invention is made of an elastic material, preferably a foam material such as elastic polyurethane foam or a foam based on natural latex. He has a plurality of incisions, which enforce him in its thickness expansion.
  • the core is at least partially expandable in a pulling direction, wherein the incisions expand in openings of the core.
  • the elastic material of the core deforms in the vicinity of the incisions in a corresponding manner.
  • the invention is based on the recognition that the incisions can be formed and arranged so that there is at least one exploded state in which the mattress core is stable even without the application of a tensile force in the pulling direction.
  • the core is, so to speak, bistable, ie, there are at least two stable states in which the core has a different extent with respect to the pulling direction.
  • the incisions have a curved and / or bent plan view and are arranged in pairs of substantially transversely to the pulling direction and transverse to the thickness (cutting) extending, mutually parallel rows, the incisions of each of a pair of adjacent rows arranged interlocked are.
  • the pairs of rows can be straight or (slightly) curved.
  • teethed in the mathematical sense means that there is at least one straight line along the rows intersecting all the cuts of both the first and second rows. If the rows are curved, there is a corresponding "smooth" line that runs parallel to the rows and cuts all the cuts.
  • the incisions of each of a pair of adjacent rows have the same plan shape and dimensions, but are oppositely oriented, ie, the incisions within one of these rows have a first orientation substantially, while the incisions of the other row second, opposite Have orientation.
  • the material between the incisions of a pair of adjacent rows is then subdivided into a chain of regions that are substantially equal in shape in a particular embodiment. These areas are essentially limited by the cuts and thus separated from the remaining material by these cuts. They are also referred to below as "intermediate areas". In the contracted state of the core, these regions assume a first stable orientation relative to each other. As the core is pulled apart they change their relative orientation. In this case, the intermediate regions are arranged so that they tilt relative to each other in a second stable orientation when the core is pulled apart beyond a certain point.
  • the intermediate areas are in the contracted state of the core preferably orientated so that they are elastically compressed (compressed) when pulling the core transverse to the pulling direction.
  • This can be achieved by a zigzag arrangement of the intermediate regions, ie in that the regions each have an elongated shape and the longitudinal axes defined thereby enclose an angle of significantly less than 180 °, preferably less than 120 °.
  • the regions are then arranged and bonded to each other and to the surrounding material so as to be able to avoid the forces resulting from the compression in the direction of the second stable orientation when the core is pulled apart beyond a certain point.
  • the distance from one pair of adjacent rows to the next pair of adjacent rows be sufficiently large that the material be in the range between the pairs of adjacent rows (preferably at least one continuous, parallel to extending the rows of material strip) substantially retains its shape and orientation when pulling the core apart.
  • the pairs of rows are virtually “decoupled” from each other, ie, the length expansion when pulling apart takes place practically only within the row pairs, while the pairs do not influence each other when a row pair is pulled apart.
  • the expression that the material "substantially retains" its shape and extent is understood to mean that the material area in question changes its dimensions in each spatial direction by less than 1% when the length of the core in the pulling direction is increased by 10% ,
  • the incisions have a curved plan without kinks, in particular a substantially part-circular, in particular semicircular plan.
  • the present invention also relates to a mattress or a furniture cushion having a core according to the invention, which is preferably in an at least partially exploded state, and a coating surrounding the core.
  • the mattress preferably also comprises on one or both sides of the core a cover plate or cover layer, which rests flat on the core and at least partially connected thereto, in particular glued. Since the core itself is stable in the extended state, the cover plate does not need any, unlike the prior art To exempt longitudinal forces and can therefore be thin and / or flexible.
  • the Fig. 1 shows a functional pattern of a mattress core according to the invention in a perspective view.
  • the core is made of an elastic, not permanently deformable foam material, as it is commonly used for mattress cores, such as polyurethane cold foam.
  • the core can also be made of a different foam plastic material or of a natural foam material based on latex.
  • the core of a plurality of semicircular incisions 3, 4 through its entire thickness passes through.
  • the incisions are produced, for example, by punching with a roller punch or a bridge punch in a simple manner, preferably after the preparation of the starting material.
  • the cuts are arranged in pairs 2a, 2b, 2c of parallel rows extending transversely to the longitudinal direction of the mattress in the transverse direction (hereinafter also referred to as lateral direction).
  • all the incisions 3 of the first row of each pair are the same orientation, while the incisions 4 of the second row are oriented opposite thereto.
  • the orientations of the cuts are chosen so that the openings of the semicircles point in the longitudinal direction of the mattress.
  • the openings of the semicircles of the two rows of each pair to each other.
  • the incisions of the second row are arranged symmetrically offset from the incisions of the first row such that the ends of each two adjacent semicircles of the second row extend into the opening of a semicircle of the first row.
  • the incisions of the first and the second row viewed in plan view, are interlocked with one another, thus protruding into one another into the material regions delimited by them.
  • the minimum distance S 1 between the incisions of the two rows is relatively small in relation to the radius of the semicircles, here somewhat less than a quarter of the radius.
  • the lateral distance G of adjacent cuts of the same row relative to the radius of the semicircles is relatively small.
  • the distance G corresponds approximately to the distance S 1 and is about 5 mm, while the radius is 22.5 mm.
  • the intermediate regions 7, 8, 9 are thus connected to one another and to the surrounding material only by relatively narrow material bridges, while they are limited by incisions 3, 4 in a considerable area of their circumference.
  • the core is in the state of Fig. 3 stable, ie it does not retract automatically back into its contracted state when no more pulling power.
  • a first, contracted portion 51 is followed by a second, exploded portion 52, again followed by a third, contracted portion 53, by a fourth, again pulled-apart portion 54 and finally a fifth, contracted portion 55.
  • a mattress can be made which has different hardness in different sections.
  • the originally semicircular incisions 3, 4 enlarge to openings 3 ', 4'. These openings point towards the next pair of rows as before a semicircular boundary 21 on (since the material areas between the pairs of rows do not change their shape significantly).
  • the basic shape of the boundary 22, 23 of the apertures corresponds to two adjoining partial circles or arcs of the same length and different orientation.
  • the optimum value of S 1 preferably appears to be in the range of the value of G and in particular in the range of about 2 to 7 mm: at a smaller value of S 1 there is a risk of tearing, while at a great value no more bistability is guaranteed.
  • This range of values should also be more generally valid for other forms of intermediate areas, which spatially do not interfere with folding.
  • Such a mattress core can be equipped directly with a mattress cover, so as to obtain a complete mattress.
  • a cover layer or cover plate of the same or of a different material can be applied to the core and e.g. glued to the core.
  • the cover layer may e.g. be designed differently on the top or bottom. Since the cover layer does not need to absorb tensile forces, this layer can be correspondingly thin and / or flexible. You may also have openings or channels for the purpose of better ventilation.
  • a core according to the invention can be extended by 100% or more without loss of comfort, so that for a given length of the mattress a material saving of more than 50% is possible.
  • a core with optimal ventilation is created.
  • traditional Ways are made by punching, on the other hand falls the punched material as waste.
  • the waste volume is also reduced to virtually zero at the same time.
  • Production and handling of the core are very simple. The storage and transport of the cores can take place in the collapsed state, whereby the space requirement is reduced. In this way, the essence of the present invention allows for further cost savings and reduced environmental impact during transport.
  • the invention has been described above with reference to a mattress core. Instead, the invention can also be used for upholstery in upholstered furniture, etc., where it offers similar advantages.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
EP07405208A 2007-07-17 2007-07-17 Noyau pouvant être extrait pour matelas et coussins de meubles Withdrawn EP2016868A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07405208A EP2016868A1 (fr) 2007-07-17 2007-07-17 Noyau pouvant être extrait pour matelas et coussins de meubles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07405208A EP2016868A1 (fr) 2007-07-17 2007-07-17 Noyau pouvant être extrait pour matelas et coussins de meubles

Publications (1)

Publication Number Publication Date
EP2016868A1 true EP2016868A1 (fr) 2009-01-21

Family

ID=38567258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07405208A Withdrawn EP2016868A1 (fr) 2007-07-17 2007-07-17 Noyau pouvant être extrait pour matelas et coussins de meubles

Country Status (1)

Country Link
EP (1) EP2016868A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106263711A (zh) * 2016-11-04 2017-01-04 成都柒柒家祥科技有限公司 用于家具制造的拉伸式的格栅型网棉结构
DE202019100832U1 (de) 2018-02-25 2019-03-22 Rummel Matratzen Gmbh & Co. Kg Polsterkern
DE202018106523U1 (de) * 2018-11-16 2020-02-21 Rummel Matratzen Gmbh & Co. Kg Taschenfederkern und Polsterkern mit einem derartigen Taschenfederkern
DE202019101480U1 (de) 2019-03-15 2020-06-18 Rummel Matratzen Gmbh & Co. Kg Längenveränderlicher Polsterkern
DE202019105603U1 (de) * 2019-10-10 2021-01-12 Rummel Matratzen Gmbh & Co. Kg Polsterelement und Matratze

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1828545U (de) * 1960-12-09 1961-03-23 Wilhelm Neuner Schaumstoffplatte.
FR1440284A (fr) * 1964-06-19 1966-05-27 Pirelli Sapsa Societa Per Azio Article de rembourrage en matériau élastique spongieux
NL8302592A (nl) * 1983-07-20 1985-02-18 Enkev B V Werkwijze voor het vervaardigen van een matras, matras vervaardigd volgens deze werkwijze en uit polyether vervaardigd lichaam te gebruiken bij de vervaardiging van het matras.
DE202006011190U1 (de) * 2006-07-18 2006-09-28 Alvi Alfred Viehhofer Gmbh & Co. Matratze

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1828545U (de) * 1960-12-09 1961-03-23 Wilhelm Neuner Schaumstoffplatte.
FR1440284A (fr) * 1964-06-19 1966-05-27 Pirelli Sapsa Societa Per Azio Article de rembourrage en matériau élastique spongieux
NL8302592A (nl) * 1983-07-20 1985-02-18 Enkev B V Werkwijze voor het vervaardigen van een matras, matras vervaardigd volgens deze werkwijze en uit polyether vervaardigd lichaam te gebruiken bij de vervaardiging van het matras.
DE202006011190U1 (de) * 2006-07-18 2006-09-28 Alvi Alfred Viehhofer Gmbh & Co. Matratze

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106263711A (zh) * 2016-11-04 2017-01-04 成都柒柒家祥科技有限公司 用于家具制造的拉伸式的格栅型网棉结构
DE202019100832U1 (de) 2018-02-25 2019-03-22 Rummel Matratzen Gmbh & Co. Kg Polsterkern
DE202018106523U1 (de) * 2018-11-16 2020-02-21 Rummel Matratzen Gmbh & Co. Kg Taschenfederkern und Polsterkern mit einem derartigen Taschenfederkern
DE202019101480U1 (de) 2019-03-15 2020-06-18 Rummel Matratzen Gmbh & Co. Kg Längenveränderlicher Polsterkern
DE202019105603U1 (de) * 2019-10-10 2021-01-12 Rummel Matratzen Gmbh & Co. Kg Polsterelement und Matratze

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