EP2243399A1 - Mécanisme pour canapés-lits et similaires - Google Patents

Mécanisme pour canapés-lits et similaires Download PDF

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Publication number
EP2243399A1
EP2243399A1 EP10159762A EP10159762A EP2243399A1 EP 2243399 A1 EP2243399 A1 EP 2243399A1 EP 10159762 A EP10159762 A EP 10159762A EP 10159762 A EP10159762 A EP 10159762A EP 2243399 A1 EP2243399 A1 EP 2243399A1
Authority
EP
European Patent Office
Prior art keywords
frame
mechanism according
legs
levers
bedspring
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Withdrawn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
EP10159762A
Other languages
German (de)
English (en)
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 Srl
Original Assignee
Stema Srl
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 ITMI2009A000650A external-priority patent/IT1401445B1/it
Priority claimed from ITMI2009A000651A external-priority patent/IT1401446B1/it
Application filed by Stema Srl filed Critical Stema Srl
Publication of EP2243399A1 publication Critical patent/EP2243399A1/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Withdrawn legal-status Critical Current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
    • 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
    • A47C17/22—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds with means for uncovering a previously hidden mattress or similar bed part
    • A47C17/225—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds with means for uncovering a previously hidden mattress or similar bed part with hidden separate full size mattress frame unfolded out of the base frame

Definitions

  • the present invention relates to a mechanism for sofa-beds and the like, which can lift and extend a bedspring for mattresses divided into several frames which are mutually pivoted.
  • the present invention also relates to a sofa- or chair-bed comprising said mechanism.
  • GB 771259 , GB 777347 , DE 10121763 , US 4800598 and US 4918770 disclose mechanisms wherein two further legs are pivoted to the first frame for supporting the bedspring when it is open.
  • the legs When the bedspring is folded in the base the legs are arranged in a substantially horizontal position with the ends turned backward, so that it is necessary to create a space in the base under the bedspring for allowing the rotation of the legs forward and downward when the bedspring is opened, with consequent problems of overall dimensions and relative complexity of the lever systems.
  • the mechanism according to the present invention is relatively simple and compact.
  • the legs support in a stable manner the bedspring not only when it is open, but also when it is closed, since they can rest on the floor at least during a portion of the movement of the bedspring.
  • the legs are preferably provided with wheels and/or the bedspring is preferably provided with cursors with wheels which run along particular guides of the base, so as to make the mechanism movement smooth, thereby further decreasing its complexity.
  • the base is preferably connected to the bedspring by means of particular rear levers which allow to fold in an advantageous position the rear frame of the bedspring, when it is divided into at least four frames, so as to further decrease the overall dimensions of the mechanism and thus of the sofa-bed.
  • the mechanism can further support a mobile front wall which covers the front portion of the base for improving the aesthetics of the sofa-bed also when the front portion of the base is open for the movement of the legs.
  • the stability and the smoothness of the mechanism are further improved by particular levers which connect the bedspring frames to each other, to the legs, to the base and/or to the cursors.
  • the mechanism according to the present embodiment of the invention comprises in a known way a substantially parallelepiped-shaped base 1, in which at least one bedspring 2 divided into three or more frames 3, 4, 5, 6 mutually pivoted two by two can be folded.
  • a rear frame 3 is pivoted to a first intermediate frame 4 and a second intermediate frame 5 is pivoted between the first intermediate frame 4 and a front frame 6.
  • Rear frame 3 and front frame 6 are provided with parapets 7, 8, respectively, for containing a mattress 9 (shown with broken lines) which can be arranged on bedspring 2 and folded in the latter.
  • Base 1 can be partially closed by one or two side walls 10 and/or by a rear wall 11 for hiding bedspring 2 folded in base 1.
  • Bedspring 2 is mechanically connected to base 1 by means of one or more first lever systems A suitable for lifting bedspring 2 from base 1 for passing from the day position to the night position, and vice versa.
  • First lever systems A are mechanically connected to base 1 by means of at least one pair of cursors 12, preferably provided with wheels, which run along guides 13 arranged along the sides of base 1.
  • Cursors 12 are mechanically connected to bedspring 2 by means of first levers 14 pivoted to the sides of rear frame 3.
  • Cursors 12 are mutually connected by a first crossbar 15.
  • Second levers 16 are pivoted between first levers 14 and the sides of first intermediate frame 4, so that first levers 14, second levers 16, rear frame 3 and first intermediate frame 4 form an articulated quadrilateral.
  • Guides 13 have a substantially horizontal rear portion and a front portion which bends upward starting from the rear portion. The depth of the rear portion of guides 13 is substantially equal to the depth of rear frame 3.
  • One or more third levers 17 are pivoted between base 1 and rear frame 3.
  • a pair of third levers 17 are mutually connected by a second crossbar 18 and are pivoted to the rear portion of base 1 and to the rear portion of rear frame 3.
  • Elastic means, in particular one or more springs 19, tend to rotate third levers 17 upward for lifting rear frame 3 from base 1.
  • the pivoting point of third levers 17 to rear frame 3 is spaced from the plane of this frame by means of plates 20 fastened to the sides of rear frame 3.
  • One or more legs 21 are pivoted to the sides of first intermediate frame 4 for supporting bedspring 2 when it is open.
  • Fourth levers 22 are pivoted between legs 21 and front frame 3, so that legs 21, fourth levers 22, rear frame 3 and first intermediate frame 4 form an articulated quadrilateral.
  • the end of legs 21 is preferably provided with a wheel 23 for running on the same floor which supports base 1, so as to support bedspring 2 at least during a portion of its movement.
  • Fourth levers 22 are mutually connected by a third crossbar 24.
  • Distance D between the pivoting points of legs 21 and of second intermediate frame 5 to first intermediate frame 4 is substantially equal to the length of legs 21.
  • the mechanism according to the present embodiment of the invention further comprises one or more second lever systems B suitable for extending one or more further legs 25 for supporting bedspring 2 when it is extended. Due to the substantial horizontal symmetry of the mechanism according to the present embodiment of the invention, figure 2 and the subsequent figures show only one first lever system A and one second lever system B of pairs of first and second lever systems A and B arranged symmetrically on both sides of bedspring 2. Legs 25 of lever systems B are mutually connected by a first crossbar 26.
  • Legs 25 are pivoted to the sides of front frame 6, while first levers 27 of lever systems B are pivoted between legs 25 and second intermediate frame 5, so that legs 25, first levers 27, front frame 6 and second intermediate frame 5 form an articulated quadrilateral.
  • the pivoting point of legs 25 to front frame 6 is spaced from the plane of this frame by means of plates 28 fastened to the sides of front frame 6.
  • a support 29 suitable for supporting a seat 30 is mechanically connected to front frame 6 by means of second levers 31 and third levers 32 of lever systems B, which levers are pivoted between support 29 and front frame 6, so that second levers 31, third levers 32, support 29 and front frame 6 form an articulated quadrilateral.
  • the pivoting point of third levers 32 to front frame 6 is spaced from the plane of this frame by means of plates 28.
  • Fourth levers 33 of lever systems B are pivoted between legs 25 and third levers 32, so as to mutually synchronize the movements of legs 25 and support 29.
  • first levers 27 and fourth levers 33 of lever systems B are pivoted to legs 25 at the same pivoting point.
  • first levers 27 of lever systems B are pivoted between first levers 27 and first intermediate frame 4, so that first levers 27, fifth levers 34, first intermediate frame 4 and second intermediate frame 5 form an articulated quadrilateral.
  • the pivoting point of first levers 27 to second intermediate frame 5 is comprised between the pivoting point of fifth levers 34 to first levers 27 and the pivoting point of legs 25 to first levers 27.
  • Second intermediate frame 5 is provided with one or more brackets 36 for supporting a front wall 37 suitable for covering the front portion of base 1.
  • the front portion of base 1 is open, namely is not provided with crossbars or other frontal connection members.
  • the sides of base 1 are indeed mutually connected by rear crossbars 38 and/or by at least one lower crossbar 39.
  • first lever systems A and of second lever systems B are mutually synchronized, in particular by means of the mechanical connection between legs 21 of lever systems A and sixth levers 35 of lever systems B, so that frames 3, 4, 5, 6 of bedspring 2 rotate one with respect to the other and bedspring 2 runs along guides 13 toward the rear portion of base 1.
  • the ends of legs 21 of lever systems A rotate forward, thereby running on wheels 23, support 29 moves toward the front portion of front frame 6, while mattress 9 is folded in three portions, substantially parallel to rear frame 3, to first intermediate frame 4 and to front frame 6 of base 2.
  • FIG. 10 it is seen that when bedspring 2 is folded in base 1, rear frame 3 and second intermediate frame 5 are arranged in a substantially vertical position above first intermediate frame 4, while front frame 6 and support 29 are arranged in a substantially horizontal position above first intermediate frame 4, in turn arranged in a substantially horizontal position.
  • Legs 21 of lever systems A are rotated and arranged in a substantially horizontal position with the ends provided with wheels 23 turned forward, while legs 25 of lever systems B are arranged in a substantially horizontal position with the ends turned backward.
  • Front wall 37 covers the front portion of base 1, seat 30 is arranged above support 29 and a back 40 can be supported on seat 30 and/or on rear wall 11 of base 1.
  • Rear wall 11 is preferably shaped for housing at least partially rear frame 3 of bedspring 2.
  • levers of lever systems A and/or B can have different shapes, also non-rectilinear.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Special Chairs (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
EP10159762A 2009-04-20 2010-04-13 Mécanisme pour canapés-lits et similaires Withdrawn EP2243399A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI2009A000650A IT1401445B1 (it) 2009-04-20 2009-04-20 Meccanismo per divani letto e simili
ITMI2009A000651A IT1401446B1 (it) 2009-04-20 2009-04-20 Meccanismo per divani letto e simili
DE202013007216U DE202013007216U1 (de) 2009-04-20 2013-08-13 Mechanismus für Schlafsofas und dergleichen

Publications (1)

Publication Number Publication Date
EP2243399A1 true EP2243399A1 (fr) 2010-10-27

Family

ID=49882718

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10159762A Withdrawn EP2243399A1 (fr) 2009-04-20 2010-04-13 Mécanisme pour canapés-lits et similaires
EP10159765A Withdrawn EP2243400A1 (fr) 2009-04-20 2010-04-13 Mécanisme pour canapés er similaires

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10159765A Withdrawn EP2243400A1 (fr) 2009-04-20 2010-04-13 Mécanisme pour canapés er similaires

Country Status (2)

Country Link
EP (2) EP2243399A1 (fr)
DE (1) DE202013007216U1 (fr)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1543103A (en) 1923-01-03 1925-06-23 Joseph M Heale Bed couch
GB373254A (en) 1931-02-18 1932-05-18 William Charles Garrett Improvements in collapsible beds and the like
GB391570A (en) 1932-02-17 1933-05-04 Daniel Coorsh Improvements relating to bed settees
US2407864A (en) * 1945-05-09 1946-09-17 Arzt Louis Chair bed
FR916688A (fr) 1945-10-31 1946-12-12 Système mécanique sans bielles ni glissières pour canapé-lit
GB771259A (en) 1954-11-10 1957-03-27 Bebry Bedding Corp Improvements in bed-settees
GB777347A (en) 1954-06-03 1957-06-19 Samuel Cram Gordon Improvements in and relating to bed-settees and collapsible springs therefor
US4800598A (en) 1987-12-01 1989-01-31 Leggett & Platt, Incorporated Anti-tilt sofa sleeper mechanism
US4918770A (en) 1988-11-21 1990-04-24 Super Sagless Corp. Sofa bed with closing and opening assist
EP0628269A1 (fr) 1993-06-11 1994-12-14 Lampolet S.P.A. Lit-divan avec structure articulée repliable
EP0808590A1 (fr) 1996-04-17 1997-11-26 Lampolet S.P.A. Lit-divan
EP1190649A1 (fr) 2000-09-21 2002-03-27 Stema S.r.l. Mécanisme pour canapé-lits et analogues
DE10121763A1 (de) 2001-05-04 2002-11-07 Sedac Mecobel S A Sitz- und Liegemöbel
EP1316278A1 (fr) 2001-11-30 2003-06-04 Stema S.r.l. Mécanisme pour canapé-lits et analogues
WO2008117318A1 (fr) 2007-03-26 2008-10-02 Stema S.R.L. Mécanisme pour canapés-lits et analogues

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10322838B3 (de) 2003-05-19 2004-08-19 Sedac-Mecobel S.A. Sitz-Bett-Faltgestell

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1543103A (en) 1923-01-03 1925-06-23 Joseph M Heale Bed couch
GB373254A (en) 1931-02-18 1932-05-18 William Charles Garrett Improvements in collapsible beds and the like
GB391570A (en) 1932-02-17 1933-05-04 Daniel Coorsh Improvements relating to bed settees
US2407864A (en) * 1945-05-09 1946-09-17 Arzt Louis Chair bed
FR916688A (fr) 1945-10-31 1946-12-12 Système mécanique sans bielles ni glissières pour canapé-lit
GB777347A (en) 1954-06-03 1957-06-19 Samuel Cram Gordon Improvements in and relating to bed-settees and collapsible springs therefor
GB771259A (en) 1954-11-10 1957-03-27 Bebry Bedding Corp Improvements in bed-settees
US4800598A (en) 1987-12-01 1989-01-31 Leggett & Platt, Incorporated Anti-tilt sofa sleeper mechanism
US4918770A (en) 1988-11-21 1990-04-24 Super Sagless Corp. Sofa bed with closing and opening assist
EP0628269A1 (fr) 1993-06-11 1994-12-14 Lampolet S.P.A. Lit-divan avec structure articulée repliable
EP0808590A1 (fr) 1996-04-17 1997-11-26 Lampolet S.P.A. Lit-divan
EP1190649A1 (fr) 2000-09-21 2002-03-27 Stema S.r.l. Mécanisme pour canapé-lits et analogues
DE10121763A1 (de) 2001-05-04 2002-11-07 Sedac Mecobel S A Sitz- und Liegemöbel
EP1316278A1 (fr) 2001-11-30 2003-06-04 Stema S.r.l. Mécanisme pour canapé-lits et analogues
WO2008117318A1 (fr) 2007-03-26 2008-10-02 Stema S.R.L. Mécanisme pour canapés-lits et analogues

Also Published As

Publication number Publication date
EP2243400A1 (fr) 2010-10-27
DE202013007216U1 (de) 2013-08-27

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