EP0395531A1 - Gelenkmechanismus für die Teile eines mehrfach verstellbaren Sofas - Google Patents

Gelenkmechanismus für die Teile eines mehrfach verstellbaren Sofas Download PDF

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Publication number
EP0395531A1
EP0395531A1 EP90401156A EP90401156A EP0395531A1 EP 0395531 A1 EP0395531 A1 EP 0395531A1 EP 90401156 A EP90401156 A EP 90401156A EP 90401156 A EP90401156 A EP 90401156A EP 0395531 A1 EP0395531 A1 EP 0395531A1
Authority
EP
European Patent Office
Prior art keywords
flange
seat
ratchet
mechanism according
wing
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.)
Granted
Application number
EP90401156A
Other languages
English (en)
French (fr)
Other versions
EP0395531B1 (de
Inventor
Edouard Doriry
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.)
Nouvelle Meral Ste
Original Assignee
Nouvelle Meral Ste
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 Nouvelle Meral Ste filed Critical Nouvelle Meral Ste
Publication of EP0395531A1 publication Critical patent/EP0395531A1/de
Application granted granted Critical
Publication of EP0395531B1 publication Critical patent/EP0395531B1/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
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A47C17/16—Seating furniture changeable to beds by tilting or pivoting the back-rest
    • A47C17/17—Seating furniture changeable to beds by tilting or pivoting the back-rest with coupled movement of back-rest and seat
    • A47C17/175—Seating furniture changeable to beds by tilting or pivoting the back-rest with coupled movement of back-rest and seat with tilting or lifting seat-back-rest pivot
    • A47C17/1756—Seating furniture changeable to beds by tilting or pivoting the back-rest with coupled movement of back-rest and seat with tilting or lifting seat-back-rest pivot by pivoted linkages

Definitions

  • the invention relates to a hinge mechanism for the seat element and the back element of a convertible bench seat, allowing the installation thereof in several positions, for example a bed position, a position seat and an intermediate position called relaxed seat position.
  • the mechanism according to the invention which is in the form of a removable module which can be interchangeable, is designed to operate in pairs, one copy being associated with each of the two sides of the bench. It is of the type comprising a first square-shaped flange fixed to the backrest element of the bench seat, a second square-shaped flange fixed to the seat element of the bench seat, articulated connection means between said flanges, and a notched ratchet allowing the relative immobilization of the back and seat elements in one or more positions, for example in seat and relaxed seat positions.
  • This mechanism is characterized in that the connection between the two flanges is carried out by means of links articulated to the two flanges so that the latter, in the bed position of the bench seat elements, come in a partially superimposed arrangement.
  • the vertical wing of the first flange is arranged above the horizontal wing of this flange fixed by its inner face to the underside of the backrest element, while the vertical flange of the second flange is arranged below the horizontal flange of this flange on the outer face of which the lower face of the seat element is fixed, so that the joint is of the non-protruding type having no component which protrudes in the part reserved for the sleeping surface or in the rear part of the backrest.
  • the fixing of the back and seat elements by their lower face to the corresponding flanges prevents any risk of shearing and therefore of destruction of the assembly by the appearance of play.
  • the axes of articulation of the connecting rods to the first flange are located above the horizontal wing of this flange, while the axes of articulation of said connecting rods to the second flange are arranged below the horizontal wing of this flange.
  • This arrangement is advantageous when the mattress is placed on the seat and backrest elements, because it allows, during transition maneuvers between the different positions, to release the seat element without compression of the mattress. In addition, this allows the angle between the seat element and the back element to be changed, in the seat position or in the intermediate position, without thereby modifying the seat slope which remains at the desired angle.
  • the vertical wing of the first flange can also be arranged below the horizontal wing of this flange, the outer face of which is then fixed to the backrest element.
  • the notched ratchet is articulated to the second flange and has on its upper face one or more notches intended to selectively engage one end of the first flange under the action of a spring while this spring can cooperate with a notch the underside of the ratchet to immobilize it in an erasing position allowing the arrangement of the elements of the bench in the bed position.
  • the engagement of the end of the first flange in the notch (s) of the ratchet produces an audible signal announcing to the user that the mechanism has reached the desired position, for example the position of seat or of relaxed seat.
  • the articulation is carried laterally, from the base of the cabinet, by pivoting rods and one of these rods carries a stop which, in the seat or relaxed seat position of the bench, is engaged by the underside of the ratchet by providing positive and irreversible locking of the chosen relative position of the seat and back elements.
  • the articulation according to the invention allows rotation between the seat and back planes from a fictitious axis located above all the thicknesses to be folded, which allows a connection between the mattress and the seat and back elements, without sliding movement between them. This therefore keeps the profile of the furniture intact during the transition between the various positions, in particular between the extreme positions of bed and seat. Until then only the protruding joints, with the drawbacks which ensued, allowed such a result.
  • the articulation according to the invention allows the user to actuate the mechanism while facing the furniture, by acting on the seat element, therefore in a place which obviously is always accessible (which does not is not always the case when this actuation must be carried out from the rear, by acting on the backrest element).
  • a convertible bench comprising a back element 1 and a seat element 2 each receiving a mattress element, respectively 3 and 4.
  • the backrest 1 and seat 2 elements are connected together and to the base 5 of the piece of furniture by two articulation linkages arranged on each side of the piece of furniture, these two linkages being symmetrical with respect to the median longitudinal vertical plane.
  • Each articulation linkage comprises a support flank 6, fixed on the side of the base 5 and on which the ends of two main links 7,8 are articulated.
  • the opposite ends of the links 7,8 are articulated to the vertical wing of a flange 9 on the horizontal wing of which is fixed the back element 1.
  • the links 7,8 form with the side 6 and the flange 9 a deformable parallelogram and allow, according to their angle of rotation, the change of position of the flange 9.
  • a spring 10, hung on the side 6 and on the rod 7, ensures the return of the crankshaft in its front position corresponding to the position of bed.
  • the ends of two connecting rods 11,12 are articulated on the vertical wing of a flange 13 in the form of an angle whose horizontal wing is fixed to the seat element 2.
  • the seat element 2 is fixed to the outer face of the horizontal wing of the flange 13 (disposed above the vertical wing of this flange)
  • the backrest element 1 is fixed to the inner face of the horizontal flange of the flange 9 (disposed below the vertical flange of this flange) so that in the bed position, while the flanges 9 and 13 are partially superimposed, the mattress elements 3 and 4 are in the extension of one another.
  • the length of the links 11,12 and the location of their points of articulation on the flanges 9 and 13 are chosen so that these links form a deformable parallelogram allowing the flanges 9,13 to be brought closer or further apart at angles different.
  • a notching ratchet 15 having on its upper face two successive notches 16, 17 intended to selectively engage the end 18, of corresponding shape, of the flange 9.
  • the notch 16 of the ratchet 15 ends with a spout 16 ′.
  • the spring 19 has a hook-shaped end 20 which, in a pushed-back position of the ratchet 15, can engage in a notch 21 on the underside thereof, to immobilize the ratchet 15 in a released position (position of Figure 4).
  • a pushed-back position of the ratchet 15 can engage in a notch 21 on the underside thereof, to immobilize the ratchet 15 in a released position (position of Figure 4).
  • the ratchet 15 comes to bear on a stop 22 carried by the link 7 while ensuring a positive and irreversible locking of the position (seat or relax ) chosen between the flanges 9 and 13.
  • a cover 23 for example of plastic, which puts the ratchet 15 and the spring 19 out of contact with the bedding.
  • This cover 23 serves at the same time as protection, reinforcement and guide for the engagement of the end 18 of the flange 9 on the ratchet 15.
  • the back element 1 and more particularly the upper part of the latter follows a practically vertical downward movement of rectilinear. This makes it possible to pass from one to the other of the positions of the bench seat without the need to separate it from a wall against which it would be placed.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Special Chairs (AREA)
  • Seats For Vehicles (AREA)
  • Eye Examination Apparatus (AREA)
  • Threshing Machine Elements (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
EP90401156A 1989-04-27 1990-04-27 Gelenkmechanismus für die Teile eines mehrfach verstellbaren Sofas Expired - Lifetime EP0395531B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8905608 1989-04-27
FR8905608A FR2646331B1 (fr) 1989-04-27 1989-04-27 Mecanisme d'articulation pour les elements d'une banquette convertible a plusieurs positions

Publications (2)

Publication Number Publication Date
EP0395531A1 true EP0395531A1 (de) 1990-10-31
EP0395531B1 EP0395531B1 (de) 1994-01-12

Family

ID=9381197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90401156A Expired - Lifetime EP0395531B1 (de) 1989-04-27 1990-04-27 Gelenkmechanismus für die Teile eines mehrfach verstellbaren Sofas

Country Status (7)

Country Link
EP (1) EP0395531B1 (de)
JP (1) JPH0368308A (de)
AT (1) ATE99894T1 (de)
DE (2) DE395531T1 (de)
DK (1) DK0395531T3 (de)
ES (1) ES2019252T3 (de)
FR (1) FR2646331B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU209037U1 (ru) * 2021-08-19 2022-01-28 Общество с ограниченной ответственностью "ЖИВЫЕ ДИВАНЫ" Пружинный замок механизма трансформации мягкой мебели

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621339A (en) * 1948-03-29 1952-12-16 Murray J Rymland Combined couch and daybed hinge
GB838898A (en) * 1958-04-18 1960-06-22 Arnold Frohwein Improvements in linkages for convertible settees
DE1230978B (de) * 1964-11-26 1966-12-22 Peitz & Co Stanzwerk Beschlag fuer Sitz- und Rueckenpolsterrahmen aufweisende Bettcouches

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621339A (en) * 1948-03-29 1952-12-16 Murray J Rymland Combined couch and daybed hinge
GB838898A (en) * 1958-04-18 1960-06-22 Arnold Frohwein Improvements in linkages for convertible settees
DE1230978B (de) * 1964-11-26 1966-12-22 Peitz & Co Stanzwerk Beschlag fuer Sitz- und Rueckenpolsterrahmen aufweisende Bettcouches

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU209037U1 (ru) * 2021-08-19 2022-01-28 Общество с ограниченной ответственностью "ЖИВЫЕ ДИВАНЫ" Пружинный замок механизма трансформации мягкой мебели

Also Published As

Publication number Publication date
EP0395531B1 (de) 1994-01-12
DE395531T1 (de) 1991-04-11
ES2019252A4 (es) 1991-06-16
FR2646331A1 (fr) 1990-11-02
DK0395531T3 (da) 1994-05-24
DE69005889D1 (de) 1994-02-24
JPH0368308A (ja) 1991-03-25
ATE99894T1 (de) 1994-01-15
DE69005889T2 (de) 1994-08-11
ES2019252T3 (es) 1994-05-01
FR2646331B1 (fr) 1994-03-11

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