EP0156814B1 - Siege articule - Google Patents

Siege articule Download PDF

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Publication number
EP0156814B1
EP0156814B1 EP84902922A EP84902922A EP0156814B1 EP 0156814 B1 EP0156814 B1 EP 0156814B1 EP 84902922 A EP84902922 A EP 84902922A EP 84902922 A EP84902922 A EP 84902922A EP 0156814 B1 EP0156814 B1 EP 0156814B1
Authority
EP
European Patent Office
Prior art keywords
seat
articulated
support
articulation
axis
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
Application number
EP84902922A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0156814A1 (fr
Inventor
Jacques Lescure
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.)
Ami Francaise SA
Original Assignee
Ami Francaise 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 Ami Francaise SA filed Critical Ami Francaise SA
Priority to AT84902922T priority Critical patent/ATE32418T1/de
Publication of EP0156814A1 publication Critical patent/EP0156814A1/fr
Application granted granted Critical
Publication of EP0156814B1 publication Critical patent/EP0156814B1/fr
Expired 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
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/14—Beach chairs ; Chairs for outdoor use, e.g. chairs for relaxation or sun-tanning
    • A47C1/143—Chaise lounges
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/035—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest

Definitions

  • the present invention relates to an articulated seat which allows the user to continuously modify the relative positions of the backrest and the seat, without significant effort and without having to get up from the seat.
  • a seat comprising at least one backrest and one seat articulated together along a movable axis, the backrest being articulated to a support along an axis parallel to the aforementioned axis, this file and this seat being continuously movable relative to each other between a position in which the file is substantially vertical and the seat substantially horizontal and a position in which the file and the seat are substantially horizontal.
  • this seat is characterized in that at least the displacement of the seat is guided opposite its axis of articulation on the back following a curve chosen so that when the back and the seat move between the two aforementioned positions, the center of gravity of the seat user's body deviates little from a horizontal plane and the user is therefore in a situation very close to equilibrium, which allows you to only need to exert a light pressure on the seat or on the backrest to change its position on the seat.
  • This seat allows its user to modify the relative positions of the backrest and seat by exerting on them efforts so minimal that they are acceptable even for the elderly and people with physical disabilities .
  • an articulated seat comprising at least one support, a back and a seat articulated together, this back and this seat being continuously movable relative to each other between a position in which the backrest is substantially vertical and the seat is substantially horizontal and a position in which the backrest and seat are substantially horizontal.
  • This seat further comprises a footrest articulated on the seat along an articulation parallel to the seat-back and back-support articulations and means for connecting, in an articulated manner, the footrest to a part of the back located beyond of the seat-back joint with respect to the back-support joint, so that any modification of the angular position of the backrest with respect to its support causes an angular modification of the footrest relative to the seat.
  • the connecting means between the footrest and the backrest comprise at least one link articulated at one of its ends to the footrest and connected in an articulated manner by its other end to the backrest.
  • the object of the invention is to remedy this drawback by creating a seat in which the passage between the sitting and lying positions and vice versa does not require any particular effort for the user, this seat further providing improvements compared to that described. in FR-A-2 527 061 of the applicant.
  • this seat is characterized in that at least the movement of the seat is guided opposite its axis of articulation relative to the backrest along a curve determined so that when the backrest and the seat move between the two aforementioned positions, the center of gravity of the seat user's body deviates little from a horizontal plane, in that the link is connected to the backrest by means of a slide articulated on the backrest and in that the end of the link opposite the articulation on the footrest comprises a stud moving in a groove provided on the slide.
  • This arrangement has a very advantageous advantage from an economic point of view since, for example, compared with the embodiment of FIG. 18 of FR-A-2 527 061, it eliminates a guide system consisting of rotary rollers mounted on the footrest and two complex grooves with several successive curves arranged on the large flanges of the seat, and replaces them by a system comprising simple articulations cooperating with elements already existing on the seat.
  • the backrest is, on the other hand, articulated on the support by a fixed axis and, on the other hand, connected to the seat by an intermediate surface on which it is articulated by a axis integral with said surface, the latter itself being articulated at its other end, both on the seat and on one of the ends of a connecting rod whose other end is articulated on the support along a fixed axis located near the fixed axis on which the backrest is articulated.
  • a first advantage of this embodiment is the flexibility and comfort that the intermediate surface between the backrest and seat gives in the angle changes between them when moving from one position to another, and a second advantage is that the seat guide grooves are straight because they no longer need to have a particular curvature.
  • the means for guiding the seat comprise a connecting rod, one of the ends of which is articulated along a fixed axis on the support, the other end being articulated on an axis integral with said seat.
  • the means for guiding the seat comprise two connecting rods articulated on the same free axis in a fixed groove on the seat, the other end of one of the two connecting rods being articulated along a fixed axis on the support and the other end of the other connecting rod being articulated on the backrest along an axis located on the backrest beyond the backrest-seat joint with respect to the backrest-support joint, this arrangement having the same advantage as the previous one as regards the reduction of friction.
  • the means for guiding the seat include a deformable parallelogram, one of the four sides of which is formed by a part of the seat and one of the articulations of which merges with the back-seat articulation, the articulation opposite to this articulation carrying at least one roller rolling on a fixed ramp secured to the support, the fact of replacing axes moving in grooves by rollers rolling on ramp bringing an additional reduction in friction.
  • the backrest 100 is articulated on the rear legs 103 along a fixed horizontal axis X-X 'and on the seat 102 along an axis Y-Y' also horizontal but mobile.
  • the feet 104 carry rollers which can be mounted on ball bearings or be coated with an anti-friction material and which cooperate with grooves 105 provided in the flanges 106 of the seat 102 to allow a certain displacement of the latter, when the backrest 100 changes from the vertical position to the horizontal position or vice versa.
  • This displacement is such that the center of gravity of the user's body moves a sufficiently small distance in the vertical plane so that the forces necessary to move from one position to the other are acceptable even for an elderly person or disabled.
  • This comprises two ears 132 which are articulated on the one hand on the seat 102 along the horizontal axis N-N 'and on the other hand on the two links 133 along the horizontal axis P-P'.
  • the other end of the links 133 is articulated on the slide 134 along the horizontal axis M-M ', the slide 134 itself being articulated on the backrest 100 along the horizontal axis Q-Q'.
  • the slide 134 has, like the rods 4a of Figures 2 and 3 of the main patent, grooves 105b. But in the present case, these are grooves which cooperate with the rollers of the feet 104 to ensure the movement of said slide 134 relative to the seat 102.
  • the seat 102 When the backrest 100 is in the vertical position (see FIG. 3), the seat 102 is in the low position, the rollers 107 fixed to the feet 104 being in high abutment on the end of the grooves 105. As for the slide 134, it is in the maximum rear position and the links 133 ensure the vertical positioning of the footrest 131 while maintaining the axis PP 'in its extreme position towards the rear of the seat 102.
  • the assembly consisting of the seat 102, the slide 134 and the footrest 131 begins to rotate around the fixed axis XX ′.
  • the seat 102 by the combined action of the rollers 107 and the grooves 105, begins a rocking movement around the axis Y-Y ', a movement which causes its front to rise somewhat.
  • the slide 134 by the rocking movement of the seat 102 on which it is articulated and by the combined action of the rollers 107 and the grooves 105b, has its own rocking movement around the axis Q-Q ', and since this axis is located, relative to the fixed axis XX' further than the axis Y-Y ', its linear displacement is greater than that of the axis YY' for the same angular displacement.
  • the result of this greater displacement is that it advances the slide 134 relative to the seat 102. Thanks to this forward movement, the links 133 operate on the axis P-P ', which causes the rotation of the footrest 131 which therefore makes movement towards the horizontal position.
  • the angular displacement of the footrest if it is linked to that of the backrest, is not identical to it. It is also a function of the distance between the joints NN 'and PP' and of the path difference of the joints QQ 'and Y-Y', which difference is itself a function of the distances of these joints from the fixed axis X-X '.
  • the different positions of the backrest 100 and of the seat 102 can be blocked by clamping levers 109. But, moreover, these also block the footrest 131 by blocking the slide. 134.
  • the seat shown diagrammatically comprises a backrest 151, a seat 152 and a support 153 with four legs 154 and 155.
  • An intermediate bearing surface 156 is provided between the backrest 151 and the seat 152. It is articulated at 157 on the base of the backrest 151 and at 158 on the rear of the seat 152.
  • the backrest 151 is articulated on the support 153 along a fixed axis 159 and the seat 152 carries two rollers 160, one on each side, which circulate in grooves 161 forming part of the support 153.
  • Two links 162, one on each side, are articulated, on the one hand on the support 153 along a fixed axis 163 and, on the other hand, on the articulation 158 connecting the intermediate bearing surface 156 and the seat 152 .
  • the backrest 151 by tilting backwards during its passage from the vertical position to the horizontal position, moves the seat 152 opposite which, thanks to the inclination of the grooves 161, comes to rest first in its front part, then in its rear part, at the level of the backrest when it reaches its horizontal position.
  • the intermediate surface 156 and to the connecting rods 162 are greater flexibility and greater comfort for the user when moving from one position to another.
  • the seat guide grooves have become rectilinear.
  • the seat includes a backrest 171, a seat 172 and a four-legged support 173 174, 175.
  • the backrest 171 is articulated on the support 173 along a fixed axis 176.
  • the seat 172 and the backrest 171 are articulated one on the other at 177.
  • Two connecting rods 178 are articulated at one of their ends on the feet 174 of the support 173 along a fixed axis 180, the other end of the connecting rods being articulated at 179 on the seat 172.
  • this system has the advantage of having very reduced friction compared to that of axes or rollers guided in grooves.
  • the seat comprises a backrest 191, a seat 192 and a four-legged support 193 194, 195.
  • the backrest 191 is articulated on the support 193 along a fixed axis 196.
  • the seat 192 and the backrest 191 are articulated one on the other in 197.
  • a stick 200 continues the file beyond the axis 197 and constitutes one of the sides of a deformable parallelogram whose three other sides are formed by the part 203 of the seat 192 and two rods 201 and 202.
  • the rod 201 is articulated at one of its ends on the seat 192 along an axis 204, while the rod 202 is articulated on the stock 200 along an axis 206, the two rods being moreover articulated one on the another along an axis 205 carrying at least one roller 199 which rolls on a ramp 198 fixed on the support 193.
  • the stick 200 forming an integral part of the backrest 191 rotates with it around the fixed axis 196, pushing forward the rod 202 and therefore the rotating roller 199 which rolls on the ramp 198.
  • the parallelogram formed by the butt 200, the rod 202, the rod 201 and the part 203 of the seat is deformable, the cam movement caused by the roller 199 while rolling on the ramp 198, raises the front of the seat 192, which is thus in the normal position when the backrest 191 reaches the position horizontal at the same time as the rear of the seat.
  • FIG. 6 shows precisely an alternative embodiment of the seat illustrated in FIGS. 1 to 5.
  • each link 133 carries a stud 135 which moves in a groove 136 disposed on the slide 134. Thanks to its weight, the footrest puts the nipples 135 into abutment at the ends of the grooves 136, which allows the slide to transmit its action, the advantage of the grooves being allowing the chair to be folded under less size.
  • FIG. 10 also shows another embodiment which constitutes a variant of FIG. 8.
  • the backrest 211 is articulated on the support 213 along a fixed axis 216 and the seat 212 is articulated at 217 on the backrest 211.
  • a connecting rod system comprising a first connecting rod 218 articulated at one of its ends on the feet 214 of the support 213 along a fixed axis 222, the other end being carried by a joint 220.
  • the articulation 220 which moves in a light 221 secured to the seat 212, also carries one end of a second connecting rod 219 the other end of which is articulated at 223 on an extension of the backrest 211.
  • the articulation 220 carrying one end of the two connecting rods 218 and 219 is located in the rear part of the lumen 221.
  • the articulation 220 will therefore move forward inside the lumen 221 until it comes to the end of the travel, in abutment.
  • the connecting rod 218 went from an inclined position at the start to a substantially vertical position at the end of the movement, thus playing the same role as the connecting rod 178 in FIG. 8.
  • the invention can also be applied to any other type of seat, provided that it comprises at least one backrest, a seat and possibly a footrest.
  • the movement of the various articulated elements could be motorized by means of a low power motor controlled by the user and the invention can be applied to a bed base.

Landscapes

  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)
  • Seats For Vehicles (AREA)
  • Massaging Devices (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Luminescent Compositions (AREA)
  • Mechanical Operated Clutches (AREA)
  • Table Devices Or Equipment (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Sewing Machines And Sewing (AREA)
  • Finger-Pressure Massage (AREA)
  • Chairs Characterized By Structure (AREA)
EP84902922A 1983-09-14 1984-08-01 Siege articule Expired EP0156814B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84902922T ATE32418T1 (de) 1983-09-14 1984-08-01 Gegliederter sitz.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8314600A FR2551637B2 (fr) 1983-09-14 1983-09-14 Siege articule
FR8314600 1983-09-14

Publications (2)

Publication Number Publication Date
EP0156814A1 EP0156814A1 (fr) 1985-10-09
EP0156814B1 true EP0156814B1 (fr) 1988-02-10

Family

ID=9292201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84902922A Expired EP0156814B1 (fr) 1983-09-14 1984-08-01 Siege articule

Country Status (13)

Country Link
EP (1) EP0156814B1 (fi)
JP (1) JPS60502188A (fi)
AT (1) ATE32418T1 (fi)
AU (1) AU3216284A (fi)
BR (1) BR8407066A (fi)
DE (2) DE156814T1 (fi)
DK (1) DK207185A (fi)
FI (1) FI851845A0 (fi)
FR (1) FR2551637B2 (fi)
IT (1) IT1178425B (fi)
NO (1) NO851804L (fi)
OA (1) OA08094A (fi)
WO (1) WO1985001196A1 (fi)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634665A1 (de) * 1996-08-28 1998-03-05 Jungjohann Thomas Sitzmöbelelement, insbesondere Polstermöbelelement, mit einer gekoppelten Rückenlehnen- und Sitzverstellung
DE19638075C1 (de) * 1996-08-29 1998-02-26 Jungjohann Thomas Bremseinrichtung für ein bewegliches Bauteil eines Möbelelementes, insbesondere Polstermöbelelementes
ES2161117B1 (es) * 1998-11-10 2002-06-16 Figueras Int Seating Sa Butaca con respaldo y reposapies abatibles.
SG94322A1 (en) * 1999-04-07 2003-02-18 Fuji Iryoki Kk A chair

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR711928A (fr) * 1931-02-24 1931-09-21 Meillet Et Lemarchand Soc Mécanisme pour fauteuils à inclinaison variable et fauteuils comportant ce mécanisme
FR734243A (fr) * 1932-03-26 1932-10-18 Meillet Et Lemarchand Fauteuil à inclinaison variable
FR1596508A (fi) * 1968-07-18 1970-06-22

Also Published As

Publication number Publication date
DK207185D0 (da) 1985-05-09
JPS60502188A (ja) 1985-12-19
DK207185A (da) 1985-05-09
DE156814T1 (de) 1986-01-16
DE3469264D1 (en) 1988-03-17
OA08094A (fr) 1987-03-31
FR2551637B2 (fr) 1986-01-24
IT8448829A1 (it) 1986-03-12
FR2551637A2 (fr) 1985-03-15
EP0156814A1 (fr) 1985-10-09
AU3216284A (en) 1985-04-11
BR8407066A (pt) 1985-08-13
FI851845L (fi) 1985-05-09
ATE32418T1 (de) 1988-02-15
NO851804L (no) 1985-05-07
FI851845A0 (fi) 1985-05-09
WO1985001196A1 (fr) 1985-03-28
IT1178425B (it) 1987-09-09
IT8448829A0 (it) 1984-09-12

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