EP0685191B1 - Locking mechanism - Google Patents

Locking mechanism Download PDF

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Publication number
EP0685191B1
EP0685191B1 EP95870045A EP95870045A EP0685191B1 EP 0685191 B1 EP0685191 B1 EP 0685191B1 EP 95870045 A EP95870045 A EP 95870045A EP 95870045 A EP95870045 A EP 95870045A EP 0685191 B1 EP0685191 B1 EP 0685191B1
Authority
EP
European Patent Office
Prior art keywords
profile
frame
notches
seat
backrest frame
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
EP95870045A
Other languages
German (de)
French (fr)
Other versions
EP0685191A1 (en
Inventor
Jean Brossier
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.)
Sedac Mecobel NV/SA
Original Assignee
Sedac Mecobel NV/SA
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 Sedac Mecobel NV/SA filed Critical Sedac Mecobel NV/SA
Priority to SI9530115T priority Critical patent/SI0685191T1/en
Publication of EP0685191A1 publication Critical patent/EP0685191A1/en
Application granted granted Critical
Publication of EP0685191B1 publication Critical patent/EP0685191B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/022Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/026Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C17/00Sofas; Couches; Beds
    • A47C17/04Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A47C17/16Seating furniture changeable to beds by tilting or pivoting the back-rest
    • A47C17/162Seating furniture changeable to beds by tilting or pivoting the back-rest with adjustable back-rest
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C20/00Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/04Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
    • A47C20/043Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
    • A47C20/045Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by means of peg-and-notch or pawl-and-ratchet mechanism urged into an operative or non-operative position at an end of stretch

Definitions

  • the present invention relates to a locking mechanism which allows positioning the backrest frame of a sleeper seat in at least three positions, i.e. a lying, relaxing or seat, relative to the seat frame of the sleeper seat connected by articulation with it, the mechanism comprising a pawl which can be pivoted relative to the seat frame under the influence of a spring, and being able to penetrate in at least two notches at the end of a profile belonging to the file-frame.
  • Such a mechanism is known and is often used to position the backrest frame of a sleeper seat in three positions.
  • three positions we mean a sitting position in which the backrest frame is vertically or substantially vertically, a relaxed position, i.e. a position between the usual sitting position and the position lying down, and finally a lying position in which the two profiles belonging to the two executives of the furniture and connected to each other by articulation are in mutual extension.
  • the ratchet mounted on the end of the seat frame of the sleeper seat so as to pivot, pivot easily, under the influence of a spring, in corresponding notches provided on the end of the profiles belonging to the file-frame and connected by articulation to the seat frame.
  • a profile change of the profile in which said notches are located is provided beyond said notches, considered in the direction in which the pawl moves by above these notches when the backrest frame is brought to the lying position, which change of profile having the shape of a recess whose depth is sufficient to prevent the pawl from falling still in contact with said profile belonging to frame-folder.
  • Figure 1 is a side view of the mechanism locking in a position in which a blockage may occur.
  • Figure 2 shows, on an enlarged scale by compared to FIG. 1, the position of the parts which cause said blockage.
  • Figure 3 shows the mechanism of locking according to the invention.
  • Figure 4 shows, on an enlarged scale by compared to figure 3, the parts of the mechanism lock according to the invention in which said blockage is prevented.
  • the locking mechanism according to the invention belongs to the types of locking mechanisms in which a profile 1, belonging to the seat frame is articulated at the height of point 2 with a profile 3 belonging to the file frame.
  • a swivel ratchet 4 with point hinge 5 is provided on the end of profile 1.
  • Said pawl has the shape of a square including one end is connected, at point 6, by a spring traction 7 at a point 8 of the same profile 1.
  • the pawl 4 is easy installation in and out of notches 9 and 10 by which position relaxes, respectively position seated, can be established.
  • tip shaped tip of the ratchet 4 is housed most of the time in its correct position.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Dentistry (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Seats For Vehicles (AREA)
  • Special Chairs (AREA)
  • Clamps And Clips (AREA)

Description

La présente invention se rapporte à un mécanisme de verrouillage qui permet de positionner le cadre-dossier d'un siège-couchette dans au moins trois positions, c'est-à-dire une position couchée, relaxe ou assise, par rapport au cadre-siège du siège-couchette relié par articulation avec celui-ci, le mécanisme comprenant un cliquet pivotable par rapport au cadre-siège sous l'influence d'un ressort, et pouvant pénétrer dans aux moins deux crans à l'extrémité d'un profil appartenant au cadre-dossier.The present invention relates to a locking mechanism which allows positioning the backrest frame of a sleeper seat in at least three positions, i.e. a lying, relaxing or seat, relative to the seat frame of the sleeper seat connected by articulation with it, the mechanism comprising a pawl which can be pivoted relative to the seat frame under the influence of a spring, and being able to penetrate in at least two notches at the end of a profile belonging to the file-frame.

Un tel mécanisme est connu et est souvent utilisé pour positionner le cadre-dossier d'un siège-couchette dans trois positions. Avec trois positions, on veut dire une position assise dans laquelle le cadre-dossier se trouve verticalement ou sensiblement verticalement, une position relaxe, c'est-à-dire une position entre la position assise usuelle et la position couchée, et finalement une position couchée dans laquelle les deux profils appartenant aux deux cadres du meuble et reliés l'un à l'autre par articulation se trouvent en prolongement mutuel. Dans la position utilisée, le cliquet, monté sur l'extrémité du cadre-siège du siège-couchette de façon à pivoter, pivote facilement, sous l'influence d'un ressort, dans les crans correspondants prévus sur l'extrémité des profils appartenant au cadre-dossier et reliés par articulation au cadre-siège.Such a mechanism is known and is often used to position the backrest frame of a sleeper seat in three positions. With three positions, we mean a sitting position in which the backrest frame is vertically or substantially vertically, a relaxed position, i.e. a position between the usual sitting position and the position lying down, and finally a lying position in which the two profiles belonging to the two executives of the furniture and connected to each other by articulation are in mutual extension. In the position used, the ratchet, mounted on the end of the seat frame of the sleeper seat so as to pivot, pivot easily, under the influence of a spring, in corresponding notches provided on the end of the profiles belonging to the file-frame and connected by articulation to the seat frame.

Dans la position couchée, les profils appartenant aux deux cadres reliés l'un à l'autre par articulation se trouvent en prolongement mutuel et ceci se passe sans intervention du cliquet du mécanisme de verrouillage.In the lying position, the profiles belonging to the two frames linked to each other by articulation are in mutual extension and this happens without intervention of the pawl of the mechanism locking.

On a cependant constaté que dans certaines circonstances, entre autre lorsque le cadre-dossier est légèrement soulevé à partir de la position couchée tout juste dite, un contact entre le cliquet et le bord du profil appartenant au cadre-dossier peut bloquer le mécanisme de façon à ce que la remise du cadre-siège dans la position couchée proprement dite ne soit plus possible.However, it has been found that in some circumstances, inter alia when the file manager is slightly raised from the lying position while just said, contact between the pawl and the edge of the profile belonging to the folder-frame can block the mechanism so that the delivery of the seat frame in the lying position proper is no longer possible.

Afin de remédier à cet inconvénient, un changement de profil du profil dans lequel lesdits crans sont situés est prévu au delà desdits crans, considéré dans le sens dans lequel le cliquet se déplace par dessus ces crans lorsque le cadre-dossier est apporté à la position couchée, lequel changement de profil ayant la forme d'un évidement dont la profondeur est suffisante afin d'empêcher le cliquet de se mettre encore en contact avec ledit profil appartenant au cadre-dossier.In order to remedy this drawback, a profile change of the profile in which said notches are located is provided beyond said notches, considered in the direction in which the pawl moves by above these notches when the backrest frame is brought to the lying position, which change of profile having the shape of a recess whose depth is sufficient to prevent the pawl from falling still in contact with said profile belonging to frame-folder.

D'autres détails et avantages de l'invention apparaítront de la description qui suit d'un mécanisme de verrouillage selon l'invention. Cette description est seulement donnée à titre d'exemple et ne limite pas l'invention. Les notations de référence se rapportent aux dessins annexés.Other details and advantages of the invention will appear from the following description of a mechanism lock according to the invention. This description is only given as an example and does not limit the invention. Reference ratings refer to to the accompanying drawings.

La figure 1 est une vue latérale du mécanisme de verrouillage dans une position dans laquelle un blocage peut se produire.Figure 1 is a side view of the mechanism locking in a position in which a blockage may occur.

La figure 2 montre, à échelle agrandie par rapport à la figure 1, la position des pièces qui provoquent ledit blocage.Figure 2 shows, on an enlarged scale by compared to FIG. 1, the position of the parts which cause said blockage.

La figure 3 montre le mécanisme de verrouillage selon l'invention. Figure 3 shows the mechanism of locking according to the invention.

La figure 4 montre, à échelle agrandie par rapport à la figure 3, les pièces du mécanisme de verrouillage selon l'invention dans laquelle ledit blocage est empêché.Figure 4 shows, on an enlarged scale by compared to figure 3, the parts of the mechanism lock according to the invention in which said blockage is prevented.

Le mécanisme de verrouillage selon l'invention appartient aux types de mécanismes de verrouillage dans lesquels un profil 1, appartenant au cadre-siège est relié par articulation à la hauteur du point 2 avec un profil 3 appartenant au cadre-dossier.The locking mechanism according to the invention belongs to the types of locking mechanisms in which a profile 1, belonging to the seat frame is articulated at the height of point 2 with a profile 3 belonging to the file frame.

Un cliquet pivotable 4 avec point d'articulation 5 est prévu sur l'extrémité du profil 1. Ledit cliquet a la forme d'une équerre dont une extrémité est relié, au point 6, par un ressort de traction 7 à un point 8 du même profil 1.A swivel ratchet 4 with point hinge 5 is provided on the end of profile 1. Said pawl has the shape of a square including one end is connected, at point 6, by a spring traction 7 at a point 8 of the same profile 1.

En déplaçant le cadre-dossier auquel appartient le profil 3 vers le haut, le cliquet 4 se pose sans difficulté dans et hors des crans 9 et 10 par lesquels la position relaxe, respectivement la position assise, peut être établie.By moving the folder-frame to which belongs the profile 3 upwards, the pawl 4 is easy installation in and out of notches 9 and 10 by which position relaxes, respectively position seated, can be established.

En rabattant brusquement le cadre-dossier vers le bas vers la position couchée, l'extrémité en forme de pointe du cliquet 4 vient se loger la plupart du temps dans sa position correcte.By suddenly folding the backrest frame towards bottom to lying position, tip shaped tip of the ratchet 4 is housed most of the time in its correct position.

Il arrive cependant plus souvent que, lorsqu'on soulève brièvement le cadre-dossier et qu'on le laisse se rabattre, un phénomène de blocage se produit parce que le cliquet se met alors en contact avec la partie 11 (figures 1 et 2) du profil 3 faisant partie du cadre-dossier.However, it happens more often that, when the backrest is briefly raised and lets it fold down, a blocking phenomenon occurs produced because the pawl then comes into contact with part 11 (Figures 1 and 2) of profile 3 making part of the frame-file.

Selon l'invention, on propose donc de prévoir à la hauteur du bord 11 du profil 3 un évidement 12 qui doit alors être suffisamment profond afin d'empêcher tout contact inutile entre l'extrémité du cliquet 4 et ce bord 11 afin que cette partie puisse donc également se déplacer librement. According to the invention, it is therefore proposed to provide at the edge 11 of the profile 3 a recess 12 which must then be deep enough to prevent any unnecessary contact between the end of the pawl 4 and this edge 11 so that this part can therefore also move freely.

Grâce à cette disposition, il ne faut dès lors plus craindre que, lorsqu'on soulèvement légèrement le cadre-dossier, il serait ensuite impossible de mettre ce cadre-dossier dans la position couchée, c'est-à-dire dans la position horizontale absolue, au prolongement du cadre-siège.Thanks to this arrangement, therefore, fear that when you lift the frame-folder, it would then be impossible to put this backrest frame in the lying position, i.e. in the absolute horizontal position, at the extension of the seat frame.

L'invention n'est pas limitée à la forme de réalisation décrite ci-dessus et bien des modifications pourraient y être apportées, pour autant qu'elles tombent dans le cadre de la revendication annexée.The invention is not limited to the form of realization described above and many modifications could be made, as long as they fall in the context of the appended claim.

Claims (1)

  1. Locking mechanism which makes it possible to position the backrest frame (3) of a couchette seat in at least three positions, that is to say a lying, relied or seated position, with respect to the seat frame (1) of the couchette seat connected thereto by articulation (2), the mechanism comprising a catch (4) which is pivotable with respect to the seat frame (1) under the influence of a spring (7), and able to enter at least two notches (9, 10) at the end of a profile forming part of the backrest frame, characterised in that a change in profile for the profile in which the said notches (9, 10) are situated is provided beyond the said notches (9, 10), considered in the direction in which the catch (4) moves over these notches when the backrest frame (3) is brought to the lying position, the said change in profile having the form of a recess (12) whose depth is sufficient to prevent the catch (4) from coming into contact again with the said profile forming part of the backrest frame (3).
EP95870045A 1994-05-04 1995-05-03 Locking mechanism Expired - Lifetime EP0685191B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9530115T SI0685191T1 (en) 1994-05-04 1995-05-03 Locking mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9400458 1994-05-04
BE9400458A BE1008239A6 (en) 1994-05-04 1994-05-04 LOCKING MECHANISM.

Publications (2)

Publication Number Publication Date
EP0685191A1 EP0685191A1 (en) 1995-12-06
EP0685191B1 true EP0685191B1 (en) 1998-07-22

Family

ID=3888139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95870045A Expired - Lifetime EP0685191B1 (en) 1994-05-04 1995-05-03 Locking mechanism

Country Status (7)

Country Link
EP (1) EP0685191B1 (en)
CN (3) CN2246209Y (en)
BE (1) BE1008239A6 (en)
DE (1) DE69503568T2 (en)
DK (1) DK0685191T3 (en)
ES (1) ES2119350T3 (en)
SI (1) SI0685191T1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBA20010006A1 (en) * 2001-01-16 2002-07-16 Gruppo Ind Styling Srl INNOVATIVE MECHANISM FOR SOFAS - BED.
CN105361488B (en) * 2011-03-30 2018-09-07 美国皮革制品经营有限责任公司 Chair and furniture
BE1023810B1 (en) * 2012-10-20 2017-07-27 Sedac-Mecobel S.A. HINGE FOR A SITTING FURNITURE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1115422B (en) * 1957-08-21 1961-10-19 Stromeyer & Co G M B H L Joint for collapsible tent beds and chairs
DE9105323U1 (en) * 1991-04-30 1991-08-01 Ferdinand Lusch Gmbh & Co Kg, 4800 Bielefeld Locking fitting for adjustable backrest or support parts

Also Published As

Publication number Publication date
CN1444890A (en) 2003-10-01
EP0685191A1 (en) 1995-12-06
CN2246209Y (en) 1997-01-29
DE69503568D1 (en) 1998-08-27
SI0685191T1 (en) 1998-10-31
CN1124100C (en) 2003-10-15
BE1008239A6 (en) 1996-02-20
DE69503568T2 (en) 1999-01-21
DK0685191T3 (en) 1999-04-26
ES2119350T3 (en) 1998-10-01
CN1123642A (en) 1996-06-05

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