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EP0274008B1 - Wooden slat with a sheath of synthetic material for a bed frame - Google Patents

Wooden slat with a sheath of synthetic material for a bed frame Download PDF

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Publication number
EP0274008B1
EP0274008B1 EP87114334A EP87114334A EP0274008B1 EP 0274008 B1 EP0274008 B1 EP 0274008B1 EP 87114334 A EP87114334 A EP 87114334A EP 87114334 A EP87114334 A EP 87114334A EP 0274008 B1 EP0274008 B1 EP 0274008B1
Authority
EP
European Patent Office
Prior art keywords
covering
glass
wood
resilient
wood lath
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
EP87114334A
Other languages
German (de)
French (fr)
Other versions
EP0274008A1 (en
Inventor
Robert Dipl.-Ing. Kahl
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.)
Rokado Metall-Holz-Kunststoff & Co KG GmbH
Original Assignee
Rokado Metall-Holz-Kunststoff & Co KG 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
Priority claimed from DE19873700271 external-priority patent/DE3700271A1/en
Application filed by Rokado Metall-Holz-Kunststoff & Co KG GmbH filed Critical Rokado Metall-Holz-Kunststoff & Co KG GmbH
Priority to AT87114334T priority Critical patent/ATE64070T1/en
Publication of EP0274008A1 publication Critical patent/EP0274008A1/en
Application granted granted Critical
Publication of EP0274008B1 publication Critical patent/EP0274008B1/en
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

  • Plastic-coated spring wooden slats for bed frames are known, for example, from DE-C-23 12 049 by the applicant or from CH-A 518 080.
  • the plastic wrappers described there have in particular the purpose of protecting the wrapped spring wooden slats from the ingress of moisture, the plastic wrapper being used according to the first-mentioned literature reference to provide fastening elements for fastening such slats to the bed frame.
  • the plastic covering essentially has protective functions, such as painting or a color coating.
  • the slats themselves have to be made from high-quality spring wood in order to be able to meet the demands placed on them, in particular to ensure good spring behavior, a long service life and high durability.
  • the invention has for its object to be able to give the existing plastic sheath additional functions, in particular to improve the resilience and the strength of the female connector equipped in this way.
  • the invention provides for the solution of the object that the covering is provided with a reinforcement made of glass fibers, with at least some of the layers of less valuable woods being formed within the covering in the case of a multilayered wood structure.
  • Another significant advantage is that, in particular in the case of multilayer slat construction, as is known, at least some of the slices can be formed from inferior quality wood, which not only makes the individual slats cheaper, but also opens up the possibility of at least partially waste wood, wood granules or the like. To be able to use, which is of particular importance with the scarcer raw materials.
  • the invention can provide e.g. as types of wood beech or veneer made of fir or spruce e.g. to be used as short-fiber veneers.
  • spring wood slats according to the invention nevertheless have corresponding spring properties and strengths which can otherwise only be achieved with higher quality woods.
  • the invention provides that at least some of the adhesive layers between the wooden layers are provided with an addition of glass fibers or glass balls.
  • glass fibers or glass balls With the addition of glass in the form of fibers or spheres in the adhesive layer, for example directly when the glue is introduced between the individual veneer layers, it is achieved that a high load-bearing capacity is achieved even inside the last becomes.
  • the invention provides that all adhesive layers are provided with a glass fiber additive.
  • a further improvement in quality, in particular handling, can be achieved in that the outer covering provided with glass fibers or the like is additionally provided with a further reinforcement-free plastic covering.
  • the invention also provides that the outer plastic covering is provided with color additives.
  • a spring wood strip generally designated 1 consists of a wooden core 2, of a plurality of veneer layers 3 and a plastic sheathing 4, into which a reinforcement made of glass fibers is inserted, which is represented by dots in the cross-sectional drawings. This gain is designated 5.
  • the plastic sheathing 4 including the reinforcing glass fibers 5 completely encloses the spring wooden strip 1, i.e. also on the end faces 6, over which a cap 7 serving for assembly is put, the cap 7 being shown only in broken lines in FIG. 1.
  • Glue layers 8 are provided between the individual veneer layers 3, which in turn are equipped with a glass fiber additive, which is represented by the dots 9 in FIG. 2.
  • the spring wooden strip 1 is equipped with an additional outer plastic sheathing 10, which can be colored, this outer plastic sheathing 10 having no fibers.
  • the complete plastic sheathing 4 not only protects the wooden strip 2 from the ingress of moisture, but conversely also prevents the escape of, for example, solvents or impregnating agents, such as formaldehyde or the like. If such means should be present in the woods used.
  • the complete encapsulation of the end faces 6 also provides the possibility of having the stresses caused by the plastic with the glass fiber reinforcement 5 absorbed.
  • the described embodiment of the invention can be modified in many ways without departing from the basic idea.
  • the invention is not limited to a reinforcement made of glass fibers, other reinforcements of the plastic covering can also be provided here, e.g. Carbon fibers, metal nets and the like.
  • the additive to the adhesive layers between the individual veneers can also be made of other materials.

Landscapes

  • Laminated Bodies (AREA)
  • Springs (AREA)
  • Golf Clubs (AREA)

Abstract

The wooden slat is to be improved particularly in terms of its loading capacity and strength. This is achieved in that the sheath (4) is provided with a reinforcement made of glass fibres (5) or the like. <IMAGE>

Description

Kunststoffummantelte Federholzleisten für Bettrahmen sind beispielsweise aus der DE-C-23 12 049 der Anmelderin oder aus der CH-A 518 080 bekannt. Die dort beschriebenen Kunststoffumhüllungen haben insbesondere den Sinn, die umhüllten Federholzleisten vor dem Eindringen von Feuchtigkeit zu schützen, wobei die Kunststoffumhüllung nach der erstgenannten Literaturstelle zugleich dazu herangezogen wird, Befestigungselemente zur Befestigung derartiger Leisten an den Bettrahmen bereitzustellen.Plastic-coated spring wooden slats for bed frames are known, for example, from DE-C-23 12 049 by the applicant or from CH-A 518 080. The plastic wrappers described there have in particular the purpose of protecting the wrapped spring wooden slats from the ingress of moisture, the plastic wrapper being used according to the first-mentioned literature reference to provide fastening elements for fastening such slats to the bed frame.

Bei den bekannten kunststoffumhüllten Federholzleisten hat die Kunststoffumhüllung im wesentlichen Schutzfunktionen etwa wie ein Anstrich oder eine Farblackierung. Dies bedeutet, daß die Federleisten selbst aus hochwertigen Federhölzern gefertigt sein müssen, um den an sie gestellten Anforderungen gerecht werden zu können, insbesondere um ein gutes Federverhalten, eine lange Lebensdauer und eine hohe Strapazierfähigkeit zu gewährleisten.In the known plastic-coated spring wood slats, the plastic covering essentially has protective functions, such as painting or a color coating. This means that the slats themselves have to be made from high-quality spring wood in order to be able to meet the demands placed on them, in particular to ensure good spring behavior, a long service life and high durability.

Der Erfindung liegt die Aufgabe zugrunde, der vorhandenen Kunststoffumhüllung zusätzliche Funktionen verleihen zu können, insbesondere die Belastbarkeit und die Festigkeit der so ausgerüsteten Federleiste zu verbessern.The invention has for its object to be able to give the existing plastic sheath additional functions, in particular to improve the resilience and the strength of the female connector equipped in this way.

Um derartigen zusätzlichen Funktionen gerecht zu werden, sieht zur Lösung der Aufgabe die Erfindung vor, daß die Umhüllung mit einer Verstärkung aus Glasfasern versehen ist, wobei bei mehrschichtigem Holzaufbau innerhalb der Umhüllung wenigstens einige der Schichten aus qualitativ weniger wertvollen Hölzern gebildet sind.In order to meet such additional functions, the invention provides for the solution of the object that the covering is provided with a reinforcement made of glass fibers, with at least some of the layers of less valuable woods being formed within the covering in the case of a multilayered wood structure.

Eine Verstärkung der Umhüllung mit Glasfasern hat eine Fülle von Vorteilen, die insbesondere darin bestehen, daß die Festigkeit und Belastbarkeit der einzelnen Federholzleiste erheblich erhöht werden kann. Die Kunststoffumhüllung übernimmt dabei nicht nur Schutzfunktion, z.B. gegen das Eindringen von Feuchtigkeit, wie dies bekannt ist, darüber hinaus übernimmt sie vielmehr auch Festigkeitsfunktionen, da glasfaserverstärkte Kunststoffe hohen Anforderungen gerecht werden könnenReinforcing the cladding with glass fibers has a wealth of advantages, which consist in particular in the fact that the strength and resilience of the individual spring wood strip can be increased considerably. The plastic covering does not only take on a protective function, e.g. against the penetration of moisture, as is known, moreover, it also takes on strength functions, since glass fiber reinforced plastics can meet high requirements

Ein weiterer wesentlicher Vorteil besteht darin, daß insbesondere bei mehrschichtigem Leistenaufbau, wie er bekannt ist, wenigstens einige der Schichten aus qualitativ minderwertigen Hölzern gebildet werden können, was nicht nur die einzeinen Leisten preiswerter macht, sondern auch die Möglichkeit eröffnet, wenigstens teilweise Abfallhölzer, Holzgranulate od. dgl. mit einsetzen zu können, was bei den knapper werdenden Rohstoffen von besonderer Bedeutung ist.Another significant advantage is that, in particular in the case of multilayer slat construction, as is known, at least some of the slices can be formed from inferior quality wood, which not only makes the individual slats cheaper, but also opens up the possibility of at least partially waste wood, wood granules or the like. To be able to use, which is of particular importance with the scarcer raw materials.

An dieser Stelle sei bemerkt, daß es bei Federleisten aus miteinander verleimten Funieren bekannt ist, auf der Oberseite der Federleiste eine zusätzliche Schicht aus einem glasfaserverstärkten Kunstharz vorzusehen, wie dies in der DE-A-22 09 448 beschrieben ist. Eine ähnliche Lösung zeigt auch die DE-U 8 219 053, wobei bei den bekannten Lösungen gemeinsam ist, daß die Kunstharze mit der Glasfaserverstärkung eine sehr harte Einheit bilden, wobei die Kunstharze die Glasfasern vor dem Zerbrechen schützen sollen. Harte Kunstharze sind aber bei der Lösung der hier gestellten Aufgabe unerwünscht.At this point it should be noted that it is known in the case of female connectors made of glued together funnels to provide an additional layer of a glass fiber reinforced synthetic resin on the upper side of the female connector, as described in DE-A-22 09 448. A similar solution is also shown in DE-U 8 219 053, it being common in the known solutions that the synthetic resins form a very hard unit with the glass fiber reinforcement, the synthetic resins being intended to protect the glass fibers from breaking. Hard synthetic resins are undesirable in solving the task set here.

In Ausgestaltung kann dabei die Erfindung vorsehen, z.B. als Holzarten Buche oder Furniere aus Tanne oder Fichte z.B. als kurzfasrige Furniere einzusetzen. Trotz der Kurzfasrigkeit derartiger Furniere weisen Federholzleisten nach der Erfindung gleichwohl entsprechende Federeigenschaften und Festigkeiten auf, die sonst nur mit hochwertigeren Hölzern erreichbar sind.In an embodiment, the invention can provide e.g. as types of wood beech or veneer made of fir or spruce e.g. to be used as short-fiber veneers. Despite the short-grain nature of such veneers, spring wood slats according to the invention nevertheless have corresponding spring properties and strengths which can otherwise only be achieved with higher quality woods.

Ferner sieht die Erfindung vor, daß wenigstens ein Teil der Klebstoffschichten zwischen den Holzschichten mit einem Zusatz aus Glasfasern oder Glaskugeln versehen ist. Mit dem Zusatz von Glas in Faser- oder Kugelform in die Klebstoffschicht, z.B. direkt beim Einbringen des Leimes zwischen den einzelnen Furnierschichten wird erreicht, daß auch bereits im Leisteninneren eine hohe Belastbarkeit erzielt wird.Furthermore, the invention provides that at least some of the adhesive layers between the wooden layers are provided with an addition of glass fibers or glass balls. With the addition of glass in the form of fibers or spheres in the adhesive layer, for example directly when the glue is introduced between the individual veneer layers, it is achieved that a high load-bearing capacity is achieved even inside the last becomes.

In weiterer Ausgestaltung sieht die Erfindung vor, daß alle Klebstoffschichten mit einem Glasfaserzusatz versehen sind.In a further embodiment, the invention provides that all adhesive layers are provided with a glass fiber additive.

Eine weitere Qualitätsverbesserung, insbesondere der Handhabung, läßt sich dadurch erreichen, daß die mit Glasfasern oder dgl. versehene Außenumhüllung zusätzlich mit einer weiteren verstärkungsfreien Kunststoffumhüllung versehen ist.A further improvement in quality, in particular handling, can be achieved in that the outer covering provided with glass fibers or the like is additionally provided with a further reinforcement-free plastic covering.

Um den Leisten zusätzlich ein besonderes optisches Erscheinungsbild geben zu können, sieht die Erfindung auch vor, daß die äußere Kunststoffumhüllung mit Farbzusätzen versehen ist.In order to be able to additionally give the strips a special visual appearance, the invention also provides that the outer plastic covering is provided with color additives.

Die Erfindung ist nachstehend anhand der Zeichnung beispielsweise näher erläutert. Diese zeigt in

  • Fig. 1 einen Schnitt durch das tigerende einer Leiste, sowie in
  • Fig. 2 einen vergrößerten Querschnitt durch eine Leiste
The invention is explained below with reference to the drawing, for example. This shows in
  • Fig. 1 shows a section through the tiger end of a bar, and in
  • Fig. 2 shows an enlarged cross section through a bar

Eine allgemein mit 1 bezeichnete Federholzleiste besteht aus einem Holzkern 2, aus einer Mehrzahl von Furnierlagen 3 und einer Kunststoffummantelung 4, in die eine Verstärkung aus Glasfasern eingelegt ist, was durch Punkte in den Querschnittszeichnungen dargestellt ist. Diese Verstärkung ist mit 5 bezeichnet.A spring wood strip, generally designated 1, consists of a wooden core 2, of a plurality of veneer layers 3 and a plastic sheathing 4, into which a reinforcement made of glass fibers is inserted, which is represented by dots in the cross-sectional drawings. This gain is designated 5.

Wie aus Fig. 2 ersichtlich, umschließt die Kunststoffummantelung 4 einschließlich den verstärkenden Glasfasern 5 die Federholzleiste 1 vollständig, d.h. auch an den Stirnseiten 6, über die eine der Montage dienende Kappe 7 gestülpt ist, wobei in Fig. 1 die Kappe 7 lediglich gestrichtelt dargestellt ist.As can be seen from Fig. 2, the plastic sheathing 4 including the reinforcing glass fibers 5 completely encloses the spring wooden strip 1, i.e. also on the end faces 6, over which a cap 7 serving for assembly is put, the cap 7 being shown only in broken lines in FIG. 1.

Zwischen den einzelnen Furnierschichten 3 sind Leimschichten 8 vorgesehen, die ihrerseits mit einem Glasfaserzusatz ausgerüstet sind, was durch die Pünktchen 9 in der Fig. 2 wiedergegeben ist.Glue layers 8 are provided between the individual veneer layers 3, which in turn are equipped with a glass fiber additive, which is represented by the dots 9 in FIG. 2.

Um die Rauhigkeit der äußeren Kunststoffumhüllung 4 abzumildern, ist die Federholzleiste 1 mit einer zusätzlichen äußeren Kunststoffumhüllung 10, die farbig gestaltet sein kann, ausgerüstet, wobei diese äußere Kunststoffumhüllung 10 keine Fasern aufweist.In order to alleviate the roughness of the outer plastic sheathing 4, the spring wooden strip 1 is equipped with an additional outer plastic sheathing 10, which can be colored, this outer plastic sheathing 10 having no fibers.

Wie bekannt, schützt die vollständige Kunststoffummantelung 4 die Holzleiste 2 nicht nur vor dem Eintritt von Feuchtigkeit, sie verhindert umgekehrt auch den Austritt von z.B. Lösungs- oder Imprägnierungsmitteln, wie Formaldehyd od. dgl., falls derartige Mittel in den eingesetzten Hölzern vorhanden sein sollten. Auch sorgt die vollständige Umhüllung auch der Stirnseiten 6 für die Möglichkeit, die auftretenden Belastungen durch den Kunststoff mit der Glasfaserverstärkung 5 aufnehmen zu lassen.As is known, the complete plastic sheathing 4 not only protects the wooden strip 2 from the ingress of moisture, but conversely also prevents the escape of, for example, solvents or impregnating agents, such as formaldehyde or the like. If such means should be present in the woods used. The complete encapsulation of the end faces 6 also provides the possibility of having the stresses caused by the plastic with the glass fiber reinforcement 5 absorbed.

Natürlich ist das beschriebene Ausführungsbeispiel der Erfindung noch in vielfacher Hinsicht abzuändern, ohne den Grundgedanken zu verlassen. So ist die Erfindung insbesondere nicht auf eine Armierung aus Glasfasern beschränkt, hier können auch andere Armierungen der Kunststoffumhüllung vorgesehen sein, z.B. Kohlenstoffasern, Metallnetze und dgl. Der Zuschlagstoff zu den Klebeschichten zwischen den einzelnen Furnieren kann ebenfalls aus anderen Materialen sein.Of course, the described embodiment of the invention can be modified in many ways without departing from the basic idea. In particular, the invention is not limited to a reinforcement made of glass fibers, other reinforcements of the plastic covering can also be provided here, e.g. Carbon fibers, metal nets and the like. The additive to the adhesive layers between the individual veneers can also be made of other materials.

Claims (6)

1. Resilient wood lath with a complete covering of plastics material for bedsteads, characterised in that the plastics covering (4) is provided with a reinforcement of glass fibres (5), wherein, with many-layered wood construction, at least some of the layers (3) inside the complete covering (4) are formed of less high-quality woods.
2. Resilient wood lath according to Claim 1, characterised in that veneer layers (3) of beech and/or pine and/or fir or the like are placed inside the glass fibre-reinforced plastics covering (4).
3. Resilient wood lath according to Claim 1 or 2, characterised in that at least some of the adhesive layers (8) between the plies of wood (3) have an additive (9) of glass fibres or fine glass balls.
4. Resilient wood lath according to Claim 3, characterised in that all adhesive layers (8) have an additive (9) of glass fibres or glass balls.
5. Resilient wood lath according to Claim 1, or one of the subsequent claims, characterised in that the outer covering (4) provided with glass fibres or the like is additionally provided with a further, reinforcement-free plastics covering (10).
6. Resilient wood lath according to Claim 5, characterised in that the outer plastics coating (10) has colour additives.
EP87114334A 1987-01-07 1987-10-01 Wooden slat with a sheath of synthetic material for a bed frame Expired - Lifetime EP0274008B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87114334T ATE64070T1 (en) 1987-01-07 1987-10-01 BASE STRETCH WITH PLASTIC COVER FOR BED FRAMES.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3700271 1987-01-07
DE19873700271 DE3700271A1 (en) 1987-01-07 1987-01-07 Spring-wood strip with a plastic cover for bed frames
DE3703910 1987-02-09
DE19873703910 DE3703910A1 (en) 1987-01-07 1987-02-09 Spring wood strip with a plastic cover for bedframes

Publications (2)

Publication Number Publication Date
EP0274008A1 EP0274008A1 (en) 1988-07-13
EP0274008B1 true EP0274008B1 (en) 1991-06-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114334A Expired - Lifetime EP0274008B1 (en) 1987-01-07 1987-10-01 Wooden slat with a sheath of synthetic material for a bed frame

Country Status (4)

Country Link
EP (1) EP0274008B1 (en)
AT (1) ATE64070T1 (en)
DE (2) DE3703910A1 (en)
DK (1) DK525987A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105559411A (en) * 2016-01-29 2016-05-11 傲科塑料制品（张家港）有限公司 Elastoplastic batten for elastic bed plate
CN105559418A (en) * 2016-01-29 2016-05-11 傲科塑料制品（张家港）有限公司 Elastic plastic backing batten for bedstead
CN105559421A (en) * 2016-01-29 2016-05-11 傲科塑料制品（张家港）有限公司 Elastic bed board bar for bedstead
CN105559412A (en) * 2016-01-29 2016-05-11 傲科塑料制品（张家港）有限公司 Elastic plastic bed batten for sleeping bed
CN105559419A (en) * 2016-01-29 2016-05-11 傲科塑料制品（张家港）有限公司 Elastic bed batten for sleeping bed
CN105559410A (en) * 2016-01-29 2016-05-11 傲科塑料制品（张家港）有限公司 Elastic batten used for bedstead

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992006623A1 (en) * 1990-10-11 1992-04-30 Iloma Automatisierungstechnik Gmbh Resilient frame made of synthetic material
ATE166548T1 (en) * 1994-01-12 1998-06-15 Werzalit Ag & Co SPRING BARS MADE OF LAYERED WOOD
DE19936915A1 (en) * 1999-06-23 2000-12-28 Thomas Gmbh & Co Technik Innovation Kg Profile strip and use and method for manufacturing the same
US6641904B1 (en) 2000-08-14 2003-11-04 Thomas Gmbh & Co. Technik & Innovation Kg Profiled bar and use and method for its production
ATE531298T1 (en) 2007-06-15 2011-11-15 Szabo Imre Dr ENERGY STORING SPRING MADE OF WOODEN

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8219053U1 (en) * 1982-11-18 Th. Goldschmidt Ag, 4300 Essen Spring bar as an element of a slatted frame
NL7108205A (en) * 1971-06-15 1972-12-19
DE2209448A1 (en) * 1972-02-29 1973-09-06 Werz Furnier Sperrholz SPRING BAR MADE OF VENEER GLUED TOGETHER

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105559411A (en) * 2016-01-29 2016-05-11 傲科塑料制品（张家港）有限公司 Elastoplastic batten for elastic bed plate
CN105559418A (en) * 2016-01-29 2016-05-11 傲科塑料制品（张家港）有限公司 Elastic plastic backing batten for bedstead
CN105559421A (en) * 2016-01-29 2016-05-11 傲科塑料制品（张家港）有限公司 Elastic bed board bar for bedstead
CN105559412A (en) * 2016-01-29 2016-05-11 傲科塑料制品（张家港）有限公司 Elastic plastic bed batten for sleeping bed
CN105559419A (en) * 2016-01-29 2016-05-11 傲科塑料制品（张家港）有限公司 Elastic bed batten for sleeping bed
CN105559410A (en) * 2016-01-29 2016-05-11 傲科塑料制品（张家港）有限公司 Elastic batten used for bedstead

Also Published As

Publication number Publication date
DE3703910A1 (en) 1988-11-03
ATE64070T1 (en) 1991-06-15
DK525987D0 (en) 1987-10-07
DE3770605D1 (en) 1991-07-11
EP0274008A1 (en) 1988-07-13
DK525987A (en) 1988-07-08

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