EP0488968A1 - Element zum Befestigen der Stützebene, die aus Bettfedern oder Latten gebildet ist, an einen Rammen eines Liege-Sitzmöbels oder Sofabetts - Google Patents

Element zum Befestigen der Stützebene, die aus Bettfedern oder Latten gebildet ist, an einen Rammen eines Liege-Sitzmöbels oder Sofabetts Download PDF

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Publication number
EP0488968A1
EP0488968A1 EP91830520A EP91830520A EP0488968A1 EP 0488968 A1 EP0488968 A1 EP 0488968A1 EP 91830520 A EP91830520 A EP 91830520A EP 91830520 A EP91830520 A EP 91830520A EP 0488968 A1 EP0488968 A1 EP 0488968A1
Authority
EP
European Patent Office
Prior art keywords
fastening element
fact
hollow
element according
section
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Withdrawn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
EP91830520A
Other languages
English (en)
French (fr)
Inventor
Renato Zorzetto
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.)
Stema Sas Di Zorzetto Renato & C
Original Assignee
Stema Sas Di Zorzetto Renato & C
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 Stema Sas Di Zorzetto Renato & C filed Critical Stema Sas Di Zorzetto Renato & C
Publication of EP0488968A1 publication Critical patent/EP0488968A1/de
Withdrawn legal-status Critical Current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
    • 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
    • A47C23/062—Slat supports
    • 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
    • A47C23/12—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using tensioned springs, e.g. flat type

Definitions

  • the present invention deals with an element for fastening the supporting plane, formed either as a bedspring or as a plurality of staves, to a chair-bed or sofa-bed frame.
  • the supporting plane of the above mentioned pieces of furniture may, at choice, consist of a bedspring or of staves generally made of wood.
  • a bedspring has been, for a long time, the only means adopted to provide the supporting plane of a chair-bed or of a sofa-bed, while the present tendency, gradually spreading, is to employ staves as therewith the supporting plane, even if having a certain resilience, is sufficiently rigid to give the user a comfort not attainable with the bedspring which, as it is well known, is too yielding.
  • the bedspring besides the above mentioned drawback, which is anyhow a subjective factor varying from a person to another, has a further drawback consisting in that its perimetric fastening to the chair-bed or sofa-bed frame has a limited resistance to the stresses.
  • the supporting plane with staves results to be more resistant, as the end itself of each stave is connected to the frame by sliding therein or by interposition of a connecting element having, on one side thereof, a seat suitable to receive the stave end while on the other side it has an appendix which is secured to the frame usually by means of a rivet or of a screw.
  • a further drawback of the realization by means of staves with intermediate element for the connection to the frame consists in that the securing of the element for the connection to the frame results scarcely resistant to the stresses.
  • a sofa supporting plane substantially rectangular but that could be also of different shape.
  • Said supporting plane comprises a bedspring 10 which is linked to the sofa frame 12 by means of a plurality of fastening elements according to the present invention which are referenced to as a whole by 14.
  • the frame 12 consists of a metal tubular section whose shape, in cross section, can be seen particularly in Fig. 2. From said figure it appears that frame 12 has a cross section of a suitable shape which, in the considered embodiment, is the one of the tubular section that formed the object of the countertop design application N. 21069 B/90 filed on 24.4.1990 by the same applicant. However it should be appreciated that this shape must be considered non-limiting as, although it is a preferred one, it could be different having nonetheless, according to the inventive concept of the present invention, a plurality of recesses and contiguous protrusions suitable to engage respectively with corresponding protrusions and recesses with which the fastening element according to the present invention is provided.
  • the bedspring 10 is advantageously formed as a net with a first plurality of metal wires 10a extending lengthwise parallel to each other and a second plurality of wires 10b extending parallel to each other in a transverse direction, which are welded to each other in the points of intersection.
  • the more external wires 10a and 10b of net 10 form the contour thereof and are connected to the fastening element 14 as shown for wires 10a in Fig.2, wires 10b being connected in the same way.
  • the fastening element 14 is formed, in a single body of predetermined length, by a first portion 16 for connection with the peripheral wires 10a or 10b of net 10 and by a second portion 18 to be secured on section 12.
  • the first portion 16 in particular is substantially U-shaped, one side of which extends into the second portion 18 which is substantially C-shaped.
  • first portion 16 On the bottom of first portion 16 there is obtained a seat 20 for receiving wire 10a or 10b. In cross section it has a substantially circular shape extending along an arc slightly greater than 180° thus holding firmly wire 10a or 10b.
  • the side 21 of portion 16, which is the upper one in operating conditions, has a thickness decreasing towards its end edge 23 for helping the wire 10a or 10b to fit into seat 20.
  • the second portion 18 of element 14 has such a shape to cover section 12 almost completely in its upper part with respect to a horizontal median line and partially, for an angle slightly less than 90°, in its lower part with respect to said median line.
  • section 12 has, symmetrically on its contour, four recesses 22 radiused with four corresponding adjacent protrusions 24 as described and illustrated in the above cited facility design application.
  • the internal surface of second portion 18 has correspondingly protrusions 26 and recesses 28 suited to engage respectively into recesses 22 and with protrusions 24 of section 12. This coupling makes particularly stable the securing of the fastening element 14 on section 12.
  • a means for securing the fastening element 14 to section 12 which, according to one of the characteristics of the element according to this invention, is suitable to snap-fit in corresponding hollows formed in said section 12 as more in detail hereunder described.
  • Said securing means comprises two radial appendixes whose internal side 31 is curved. Each of them ends with a catch 32 directed towards the outside of portions 18.
  • a protrusion 34 having a height substantially equal to the one of appendixes 30 and having a cross section which linearly decreases towards its free end.
  • appendixes 30 and by protrusion 34 are designed to be inserted into a hollow 36 of section 12.
  • the side 31 of appendixes 30 and the catches 32 are suited to snap engage with two opposite edges of said hollow 36 as it results from the following description of the way in which the fastening element 14 is secured to tubular section 12, with reference to Figs.5 to 7a.
  • Figs. 5 and 5a the fastening element 14 and the tubular section 12 are represented separated from each other and in particular in Fig. 5a there is seen that appendixes 30 are separated from the opposite walls of protrusion 34.
  • catches 32 engage with two opposite edges 38 of hollow 36, inwardly folded and having an essentially curved outline so as to create a slight narrowing of the cross section of hollow 36, such to cause appendixes 30 to bend towards protrusion 34.
  • Figs. 7 and 7a represent the fastening element 14 and the tubular section 12 locked to each other and in particular in Fig. 7a there is seen that catches 32, once disengaged from said edges 38 of hollow 36, engage with the lower end of edges 38 with a substantially snappy movement due to the fact that appendixes 30, thanks to the resilience of the material the element 14 is made of, can return to their initial position having now their sides 31 engaged with edges 38.
  • the material of which the fastening element 14 is made is plastics and preferably said material is thermoplastic polypropylene.
  • FIG. 8 there is schematically represented in a perspective view a sofa supporting plane employing staves 42.
  • the element for their fastening to the frame or tubular section 12 is now designated 14a because it differs from the element 14 for the fastening of bedspring 10, merely in two details extraneous to the concepts of the present invention.
  • the fastening element 14a has in fact, instead of the U-folded portion 16, a hollow appendix 44 adapted to form a seat for the end of stave 42.
  • portion 18 is provided with two groups of securing means, appendixes 30 and protrusion 34, instead of only one, due to the fact that the fastening element 14a will be wider than the fastening element 14.
  • FIGs.9 to 13a analogous to Figs. 2 to 7a, there is represented the fastening element 14a in operating conditions, in two perspective views and in the various operating steps of its application to section 12. Its detailed description as well as that for the application to section 12 are omitted being identical to those relating to the fastening element 14.
  • Figs. 9 to 13a the same elements of Figs. 2 to 7a are indicated with the same reference numbers.

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  • Special Chairs (AREA)
  • Bedding Items (AREA)
EP91830520A 1990-11-27 1991-11-26 Element zum Befestigen der Stützebene, die aus Bettfedern oder Latten gebildet ist, an einen Rammen eines Liege-Sitzmöbels oder Sofabetts Withdrawn EP0488968A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2219190U IT220311Z2 (it) 1990-11-27 1990-11-27 Elemento d'aggancio del piano di sostegno, a rete metallica o a doghe,al telaio di una poltrona o divano letto.
IT2219190U 1990-11-27

Publications (1)

Publication Number Publication Date
EP0488968A1 true EP0488968A1 (de) 1992-06-03

Family

ID=11192836

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91830520A Withdrawn EP0488968A1 (de) 1990-11-27 1991-11-26 Element zum Befestigen der Stützebene, die aus Bettfedern oder Latten gebildet ist, an einen Rammen eines Liege-Sitzmöbels oder Sofabetts

Country Status (2)

Country Link
EP (1) EP0488968A1 (de)
IT (1) IT220311Z2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2063656A2 (es) * 1992-07-10 1995-01-01 Teyfmon S L Metodo y elemento de union correspondiente para el ensamblaje de muelles en fabricacion de bastidores para muebles de asiento.
EP0761138A1 (de) * 1995-08-24 1997-03-12 BICO Birchler & Co. AG Lattenrost für Liegemöbel
ES2154203A1 (es) * 1998-12-30 2001-03-16 Betere Fab Lucia Antonio Contera perfeccionada.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1916630B1 (de) * 1968-12-02 1970-08-20 Kahl Fa Robert Bettrahmenteil
US3802005A (en) * 1971-11-11 1974-04-09 Flex O Lators Furniture spring deck and cushion assembly incorporating same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1916630B1 (de) * 1968-12-02 1970-08-20 Kahl Fa Robert Bettrahmenteil
US3802005A (en) * 1971-11-11 1974-04-09 Flex O Lators Furniture spring deck and cushion assembly incorporating same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2063656A2 (es) * 1992-07-10 1995-01-01 Teyfmon S L Metodo y elemento de union correspondiente para el ensamblaje de muelles en fabricacion de bastidores para muebles de asiento.
EP0761138A1 (de) * 1995-08-24 1997-03-12 BICO Birchler & Co. AG Lattenrost für Liegemöbel
ES2154203A1 (es) * 1998-12-30 2001-03-16 Betere Fab Lucia Antonio Contera perfeccionada.

Also Published As

Publication number Publication date
IT220311Z2 (it) 1993-09-16
IT9022191U1 (it) 1992-05-27

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