EP0397978B1 - Federleiste für einen Lattenrost od.dgl. - Google Patents

Federleiste für einen Lattenrost od.dgl. Download PDF

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Publication number
EP0397978B1
EP0397978B1 EP90104572A EP90104572A EP0397978B1 EP 0397978 B1 EP0397978 B1 EP 0397978B1 EP 90104572 A EP90104572 A EP 90104572A EP 90104572 A EP90104572 A EP 90104572A EP 0397978 B1 EP0397978 B1 EP 0397978B1
Authority
EP
European Patent Office
Prior art keywords
spring
female connector
resilient layer
loaded strip
layers
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.)
Expired - Lifetime
Application number
EP90104572A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0397978A1 (de
Inventor
Günter c/o Teutoburger Sperrholzwerk Don
Ulrich Zobel
Karl Becker
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.)
Huelsta Werke Huels GmbH and Co KG
Original Assignee
Huelsta Werke Huels GmbH and Co KG
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 Huelsta Werke Huels GmbH and Co KG filed Critical Huelsta Werke Huels GmbH and Co KG
Priority to AT90104572T priority Critical patent/ATE84950T1/de
Publication of EP0397978A1 publication Critical patent/EP0397978A1/de
Application granted granted Critical
Publication of EP0397978B1 publication Critical patent/EP0397978B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/06—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using wooden springs, e.g. of slat type ; Slatted bed bases
    • A47C23/061—Slat structures

Definitions

  • the invention relates to a female connector according to the preamble of the main claim.
  • CH-PS 504 860 describes a "Luschli”, in particular for seating and reclining furniture, in which a solid plastic layer is introduced between the upper and lower layers of veneer wood, which preferably consists of a thermosetting plastic.
  • This thick intermediate layer made of plastic is intended to avoid the disadvantage of pre-stressed "Luschtli", which is seen in the fact that, after use, they weaken after relatively few load changes and thus lose their suspension properties.
  • the solid plastic layer introduced is said to have better flexural strength than European hardwood.
  • a plastic female connector for pads of upholstery, in particular mattresses which has a flat underside and a height decreasing from its transverse median plane to its two ends.
  • This female connector is made entirely of plastic and also with this female connector, the top flange and bottom flange are connected to each other in a shear-proof manner so that the desired homogeneity is not achieved.
  • DE-GM-76 21 595 describes a female connector made of plywood layers, with additional wooden slats firmly inserted in the central area, which prevent the undesired, downward-facing, frequently permanent deformations that occur during prolonged use should avoid.
  • all layers of veneer wood are firmly glued to one another and thus connected in a shear-resistant manner, and the strip always maintains its dimension in terms of material thickness.
  • a female connector for a bed or slatted frame which consists of an upper and a lower reinforcing layer extending in the longitudinal direction of the skirting board made of plastic-bonded glass fibers, carbon fibers or the like. These two reinforcement layers are connected to each other via a foam layer.
  • the known female connector is designed to be constant over its entire length and thus has no homogeneity when viewed over the longitudinal axis of the connector, i.e. the layers can shift against each other under load and thus with deflection.
  • the upper and lower reinforcement layers are not connected to each other in a shear-resistant manner.
  • the invention has for its object to provide a female connector which has a suspension behavior as homogeneous as possible seen over its length - at least in the central region.
  • the female connector according to the invention consists of an upper chord and a lower chord, the two belts each consisting of layers of veneer wood that are firmly glued together.
  • the thrust bond between the upper chord and lower chord is removed in the central area - apart from the end areas of the female connector - so that the upper chord and lower chord can move separately from one another in the central area.
  • a volume-elastic mass is filled in as an elastic layer in this area between the upper chord and lower chord, which keeps the upper chord and lower chord at a certain defined distance from one another when there is no load.
  • this elastic layer advantageously has the additional feature that its thickness increases continuously or in steps towards the middle of the bar and decreases towards the ends of the bar.
  • the elastic layer is firmly glued to the underside of the top flange and to the top of the bottom flange.
  • a foam made of natural or synthetic material is used as the elastic layer and it is preferably proposed according to the invention that the volume-elastic material, which of course also has to be form-elastic, is a polyurethane.
  • Polyurethane elastomers are high-molecular organic materials that have the characteristic elastic properties of natural or synthetic rubber. Polyurethane foam is widely known in the art as a cushioning material, insulating material and also in medicine as a cotton substitute.
  • This polyurethane foam used according to the invention has low rigidity, is volume-elastic and its rebound resilience is damped. When the tension subsides, the original dimension is fully restored, but this takes a longer time, i.e. the desired vibration damping is achieved.
  • the new female connector has the main advantage that its suspension behavior over the load path can be designed.
  • a female connector 1 is shown, which can be fixed by means of bearing blocks 2 and 3 on grate frame parts 4, wherein the bearing blocks 2 and 3 are only shown as exemplary embodiments.
  • bearing blocks 2 and 3 are only shown as exemplary embodiments.
  • specially designed bearing blocks are preferably used.
  • the female connector 1 has end regions 5 and 6.
  • the female connector 1 is constructed from an upper chord 12 and a lower chord 14, between which there is an elastic layer 11.
  • Upper chord 12 and lower chord 14 each consist of layers of veneer wood 8, which can be surface-coated up or down by a synthetic resin film 9.
  • a moisture-impermeable thermoset layer 10 is used in the upper chord 12 immediately before its lowermost plywood layer 1, which is designed to be shear and tensile resistant at least in the transverse direction of the veneer wood layers 8 and is arranged as close as possible to the neutral fiber of the upper chord 12.
  • the top flange 12 and bottom flange 14 are firmly glued to one another in the same way as the individual veneer wood layers 8 are glued and pressed together.
  • the elastic layer 11 is used, which preferably consists of a polyurethane foam and is volume-elastic, ie can be compressed elastically.
  • the transition from the center 7 to the end regions 5 and 6 is stepless.
  • the upper chord 12 and lower chord 14 are kept at a defined distance from one another when there is no load and the thrust bond between the upper chord 12 and lower chord 14 is canceled, so that the upper chord 12 and lower chord 14 can move separately from one another in the central region.
  • Fig. 4 shows the spring behavior of a pure plywood strip and it can be seen that this spring behavior is linear.
  • Fig. 5 shows the spring behavior of a top bar 12 and bottom chord 14 and elastic layer 11 spring bar and it can be seen that the spring bar designed in this way yields relatively little at the beginning of the load, but then when the elastic layer 11 is compressed, becomes more flexible .
  • This configuration creates a female connector 1 which behaves more homogeneously than the previous female connectors and which, regardless of the area in which a load is exerted on the female connector, leads to the same amount of deflection over the entire length of the female connector. In addition, the swinging of the female connector is significantly reduced.

Landscapes

  • Laminated Bodies (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
EP90104572A 1989-05-17 1990-03-10 Federleiste für einen Lattenrost od.dgl. Expired - Lifetime EP0397978B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90104572T ATE84950T1 (de) 1989-05-17 1990-03-10 Federleiste fuer einen lattenrost od.dgl.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3916042 1989-05-17
DE3916042 1989-05-17
DE3939024A DE3939024A1 (de) 1989-05-17 1989-11-25 Federleiste fuer einen lattenrost o. dgl.
DE3939024 1989-11-25

Publications (2)

Publication Number Publication Date
EP0397978A1 EP0397978A1 (de) 1990-11-22
EP0397978B1 true EP0397978B1 (de) 1993-01-27

Family

ID=25880950

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90104572A Expired - Lifetime EP0397978B1 (de) 1989-05-17 1990-03-10 Federleiste für einen Lattenrost od.dgl.

Country Status (3)

Country Link
EP (1) EP0397978B1 (enrdf_load_stackoverflow)
DE (2) DE3939024A1 (enrdf_load_stackoverflow)
ES (1) ES2040522T3 (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994014359A1 (de) * 1992-12-22 1994-07-07 Rudolf Wuggenig Auf- oder einlage für matratzen
DE4303640A1 (de) * 1993-02-09 1994-08-11 Werzalit Ag & Co Federleiste aus Schichtholz
EP0663168B1 (de) * 1994-01-12 1998-05-27 Werzalit Ag + Co. Federleiste aus Schichtholz
DE19632960A1 (de) * 1996-08-16 1998-02-19 Rummel Matratzen Gmbh & Co Elastische Kunststoffleiste, insbesondere für Lattenroste von Liegemöbeln
DE19930215C2 (de) * 1999-06-30 2002-06-27 Rudolf Haddick Liege- und Sitzelement
DE102011056024B4 (de) * 2011-12-05 2016-12-01 Lorenz Kunststofftechnik Gmbh Federleiste
CN104862216B (zh) * 2014-02-21 2017-01-04 宁波大学 高通量可视化全密闭分体式lamp-lfd检测芯片装置
DE202015106032U1 (de) * 2015-11-10 2016-10-12 Recticel Schlafkomfort Gmbh Federleiste für eine Sitz- oder Liegemöbelunterfederung sowie Unterfederung mit zumindest einer solchen Federleiste

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8502892U1 (de) * 1985-05-02 Texmato GmbH & Co, 4500 Osnabrück Kunststoff-Federleiste für Auflagen von Polstern
FR889892A (fr) * 1942-06-10 1944-01-21 Sommier à lames flexibles en bois
CH504860A (de) * 1969-03-07 1971-03-31 Metzger Josef Lättli, insbesondere für Sitz- und Liegemöbel
DE7621595U1 (de) * 1976-07-08 1977-09-01 Teutoburger Sperrholzwerk Georg Nau Gmbh, 4930 Detmold Federleiste als unterfederung fuer sitz- und/oder liegemoebel
DE2703199C2 (de) * 1977-01-27 1978-09-07 Haro Gmbh, 4755 Holzwickede Federleiste für Bettrahmen mit querverlaufender Profilierung
DE7930103U1 (de) * 1979-10-24 1980-01-31 Sigmund Scherdel Sport- Und Freizeit Gmbh, 8590 Marktredwitz Latte fuer bett- oder lattenrost
CH650911A5 (en) * 1981-03-02 1985-08-30 Jos Metzger Liegemoebelfabrik Slat for slatted couch

Also Published As

Publication number Publication date
ES2040522T3 (es) 1993-10-16
DE3939024A1 (de) 1990-11-22
EP0397978A1 (de) 1990-11-22
DE3939024C2 (enrdf_load_stackoverflow) 1991-03-14
DE59000808D1 (de) 1993-03-11

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