EP0331558A1 - Stapelbarer Stuhl mit zusammenlegbarem Rückenteil und Armstützen - Google Patents

Stapelbarer Stuhl mit zusammenlegbarem Rückenteil und Armstützen Download PDF

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Publication number
EP0331558A1
EP0331558A1 EP89400490A EP89400490A EP0331558A1 EP 0331558 A1 EP0331558 A1 EP 0331558A1 EP 89400490 A EP89400490 A EP 89400490A EP 89400490 A EP89400490 A EP 89400490A EP 0331558 A1 EP0331558 A1 EP 0331558A1
Authority
EP
European Patent Office
Prior art keywords
backrest
axis
armrest
seat
bearing
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
EP89400490A
Other languages
English (en)
French (fr)
Other versions
EP0331558B1 (de
Inventor
Norbert Kleinklaus
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.)
Grosfillex SAS
Original Assignee
Grosfillex SAS
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9363844&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0331558(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Grosfillex SAS filed Critical Grosfillex SAS
Publication of EP0331558A1 publication Critical patent/EP0331558A1/de
Application granted granted Critical
Publication of EP0331558B1 publication Critical patent/EP0331558B1/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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/54—Supports for the arms
    • A47C7/543—Supports for the arms movable to inoperative position
    • 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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining 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
    • A47C1/026—Reclining 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
    • A47C1/0265—Reclining 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 positioned under the arm-rests
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/04—Stackable chairs; Nesting chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/407—Support for the head or the back for the back of collapsible type

Definitions

  • the present invention relates to an indoor or outdoor armchair which comprises, on the one hand, a seat supported by two lateral pairs of legs extending above the seat to receive armrests and, on the other hand , a backrest articulated at its base relative to the rear of this seat, as well as above relative to the armrests, which are movable from front to back and vice versa to allow the inclination of the backrest to be adjusted.
  • French patent 2,593,686 describes a stackable chair of this type.
  • the legs of each pair converge upwards and are rigidly connected by a high crosspiece in order to be stackable; in addition, each armrest resting on the conjugate cross-member is fixed thereon in a removable manner and connected to the backrest by a hinge pin situated above the armrest considered at a distance from the hinge axis of the backrest on the seat such, relatively to the distance from this second axis to the anterior end of the above-mentioned conjugate cross-member, that the rear end of the armrest in question can cross the front end of said cross-member, during the folding of the backrest on the seat.
  • each armrest contains a rack cooperating with a finger of the conjugate crosspiece, finger which is trapped in the armrest over the entire adjustment stroke by means of which the backrest is adjustable in inclination, this armrest having a lower opening situated at the 'rear of the rack so that the finger can escape when said armrest is raised to fold the backrest.
  • the armrests are moved forward causing the backrest to tilt, then raised and advanced to escape first from the racks and then from the crosspieces of the legs of the legs, which has the effect of fold the backrest onto the seat and, at the same time, bring the armrests in front of it, the arms of these armrests abutting against said seat.
  • a disadvantage of this known chair is that its size in the stacking position is relatively large because the armrests extend far beyond the seat itself in the folded seat state which essentially comprises the base, the seat and the backrest folded over that -this. As a result, the filling rate of trucks or other vehicles is limited, which increases the cost of transport. It also follows that storing a battery at the user's place requires more space.
  • British patent 1,404,527 also describes a stackable armchair whose backrest can be folded over the seat and the armrests can be retracted.
  • each armrest is connected to the backrest by a sort of gimbal located in front of it.
  • a horizontal axis of this gimbal makes it possible to raise the armrest considered while a vertical axis of said gimbal makes it possible to fold the armrest raised against the front of the backrest. In this last position of the armrests, it is possible to fold the backrest on the seat and thus to stack.
  • the stacking is dubious and in any case unstable and relatively bulky, since the armrests must take place between the seat and the backrest, which cannot be completely folded since it abuts on the armrests forming spacers.
  • the present invention aims to remedy the drawbacks of these two known armchairs, while retaining their advantages.
  • the chair can be made of plastic with a very small number of components, therefore of molds, and can be mounted easily and quickly without special skill with a very small number of connecting axes. This leads to the cost price being reduced and allowing marketing in supermarkets.
  • the chair implements the combination of means known from the two aforementioned patents. Consequently, it comprises, on the one hand, a seat supported, on each side, by a pair of legs extending above the seat and converging towards a high cross-member intended to receive an armrest movable longitudinally and adjustable by means of a rack and pin device and, on the other hand, a pivotally mounted backrest relative to this seat, the backrest being further connected to each of the two armrests by a two-axis articulation device extending substantially along a line of greatest slope of this file, called the first axis and respectively a second axis substantially perpendicular to the first and parallel to the pivot axis of said file relative to the seat.
  • each articulation device is arranged at the rear of the backrest and protruding over a height sufficient to allow the passage of the corresponding armrest, by pivoting around the first axis, from a position external to a inner position relative to a marginal element of the backrest which carries the device in question, these two positions being offset by 180 degrees substantially and the aforementioned armrest being able to pivot in each at least of said two positions around the second axis, in the position outside, snap onto the conjugate cross member of the legs when the backrest is raised and, in the internal position, apply flat against the rear face of the backrest until it rests on the seat.
  • the corresponding armrest forms a body with a rod projecting laterally in a direction substantially perpendicular to its longitudinal axis and extended by a ball joint rotatably mounted around its center in a bearing of the abovementioned marginal element of the backrest, this bearing delimiting a slot which extends, along the aforementioned second axis so that the rod is guided and thus limits the pivoting of the ball joint around the first axis, while the edges of said bearing are likely to cooperate by abutment with the conjugate edge of the armrest considered to limit the pivoting of the ball joint around the second axis.
  • the chair has a seat 1 molded from plastic with two lateral pairs of legs 2, the legs of the same pair converging upward and extending above said sitting up to a cross 3 which connects them.
  • This monolithic partial seat is shaped so that several identical seats can be stacked to form a stack ( Figure 4).
  • the armchair also has a plastic backrest 4, which is removed from the rear.
  • the file then has lateral uprights 5 connected by an upper cross member 6 and a lower cross member 7 between which extend rising strips 8 thinner than said elements 5 to 7 which are U-shaped and open at the rear.
  • the uprights 5 of the backrest 4 have protruding, at their lower ends, ears 9 arranged against other ears 10 formed above and behind the sides of the seat 1, these ears 9 and 10 being crossed by aligned pivot axes 11.
  • the armchair includes armrests 12 resting, adjustable in the anteroposterior direction, on the crosspieces 3 of the legs 2 and connected at the rear to the uprights 5 of the backrest by articulation devices 13.
  • the articulation devices 13 are designed so that, as shown in Figures 5 to 7: the backrest 4 can pivot in the direction of the arrow F1 (FIG. 5) in order to cause the complete advancement of the armrests 12, advancement which is accompanied by a slight pivoting of the said armrests around a substantially horizontal axis (arrow F2 ) thanks to the devices 13 and which at the end of the stroke releases an internal rack 14 of each armrest relative to a finger 15 of the conjugate cross member 3 of the base, this being described in the following with reference to FIG. 8.
  • each armrest 12 which normally extends flat on the conjugate cross member 3 of the base in an anteroposterior direction, can pivot according to the arrow F2 (FIG.
  • the armrest considered 12 can then pivot flat in the direction of arrow F3 (FIG. 6) around a substantially vertical axis thanks to the device 13, until it no longer extends forwards, but towards the rear in a direction substantially parallel to the cross-member 3 of the base, - Said armrest 12 can finally pivot flat in the direction of arrow F4 (FIG. 6) around the above-mentioned substantially horizontal axis to apply flat on the slats 8 of the backrest 4 along the corresponding upright 5.
  • each articulation device 13 must have at least two pivot axes, one horizontal and the other vertical, and that each armrest 12 must be able to be maneuvered around the upright 5 of the backrest corresponding over at least 180 degrees while in the position of use, on the outside of the upright, towards the front, and in the final folding phase, on the inside, towards the rear and then towards the front.
  • Each articulation device 13 is then placed at the rear of the corresponding upright 5 of the backrest and protruding over a sufficient height depending on the embodiment chosen.
  • each articulation device 13 Two embodiments of each articulation device 13 are shown in FIGS. 9 to 12, but before describing them, it is necessary to return to the adjustable connection of each armrest 12 on the corresponding cross member 3 of the base.
  • the armrest 12 considered is U-shaped and has an internal projection beneath its top of the transverse ribs 16 regularly spaced and constituting the teeth of the aforementioned rack 14.
  • the armrest defines under it a corridor 17 for the passage of the aforementioned finger 15; this finger projects from the two sides of a tab 18 molded with the cross members 3 of the base; the sides of the armrest form a body with two flanges 19 delimiting between them a slot 20 for access to the corridor; during the adjustment of the longitudinal position of this armrest and, consequently, of the inclination of the backrest, the tab 18 is disposed between the flanges 19 and, the armrest 12 being raised so that the projecting end portions of the finger 15 rest on these edges, said finger is placed under the rack 14 in the corridor 17.
  • the armrest is trapped in the finger 15, but is free to move in translation being guided by the flanges 19.
  • the chosen position having been reached, it suffices to drop the armrest and the finger 15 engages with the selected rib 16 of the rack 14.
  • the edges 19 are interrupted and the sides of the armrest 12 delimit between them a passage 21 through which the finger 15 can pass.
  • the armrests 12 are pulled forward and at the end of the stroke, are raised to escape the fingers 15 thanks to the passages 21.
  • the folding operation described in the foregoing with reference to FIGS. 5 to 7 can then take place.
  • each armrest 12 has come from molding with a rod 22 projecting from the interior side near its rear end and extending in a direction substantially perpendicular to its longitudinal axis, the rod being extended by a ball joint 23.
  • the corresponding amount 5 of the back came from molding with a bearing body 24 in which fits a cover 25 of molded plastic.
  • a tube 26 projects, the upper annular end of which constitutes a seat 27 for the ball joint 23 which is held pressed against this seat by a bearing 28 of the cover 25.
  • the ball joint 23 is trapped in the bearing 24, 25 of the fact that the cover 25 is fixed to the body 24 by means of screws 29 locked in sleeves 30 of the armrest. These screws are arranged on either side of a slot 31 formed in the cover 25 to allow the rod 22 to pivot around the longitudinal axis 32 of the upright 5 of the backrest by about 180 degrees.
  • the armrest can occupy either the abovementioned interior position shown in solid lines in FIG. 9, or the exterior position shown in phantom.
  • the pivoting of the ball joint 23 is limited to a pivoting around a transverse axis 33 perpendicular to the axis 32 and parallel to the pivot axes 11 of the backrest, given that the edges 34 and 35 of the bearing 24, 25 cooperate by abutment and friction with the conjugate edge 36 of the armrest 12.
  • each articulation device 13 comprises a monolithic tee 37 having a pin 38 extending along the aforementioned transverse axis 33 and two other pins 39, 40 aligned along the longitudinal axis 32 above.
  • the pin 38 is rotatably mounted in a sleeve 41 molded in the armrest 12 and there it is immobilized in translation by a flange 42 and a removable ring 43 known on the name of circlip.
  • the pins 39, 40 are mounted to rotate and immobilized in translation in a bearing constituted, as in the first embodiment, by a body 24 molded with the corresponding amount 5 of the backrest 4 and by a cover 25 made of plastic, the cover being fixed on the body by means of screws 29 blocked in sleeves 30 of the upright.
  • the tube 26 has, at its free end, a cylindrical seat 47 and the cover delimits, on either side of the slot 31 provided for the passage of the pin 38, semi-cylindrical bearings 45, the pins 39, 40 being guided between the seat 44 and the bearing surfaces 45.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP89400490A 1988-03-02 1989-02-22 Stapelbarer Stuhl mit zusammenlegbarem Rückenteil und Armstützen Expired - Lifetime EP0331558B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8802653 1988-03-02
FR8802653A FR2627969B1 (fr) 1988-03-02 1988-03-02 Fauteuil empilable a dossier et accoudoirs repliables

Publications (2)

Publication Number Publication Date
EP0331558A1 true EP0331558A1 (de) 1989-09-06
EP0331558B1 EP0331558B1 (de) 1991-04-24

Family

ID=9363844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89400490A Expired - Lifetime EP0331558B1 (de) 1988-03-02 1989-02-22 Stapelbarer Stuhl mit zusammenlegbarem Rückenteil und Armstützen

Country Status (7)

Country Link
US (1) US4906046A (de)
EP (1) EP0331558B1 (de)
CA (1) CA1297773C (de)
DE (1) DE68900062D1 (de)
ES (1) ES2022754B3 (de)
FR (1) FR2627969B1 (de)
GR (1) GR3001964T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995015099A1 (fr) * 1993-12-03 1995-06-08 Gilles Fantino Siege dont le dossier articule fait office de couverture de protection pour l'assise lorsqu'il est rabattu

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5560675A (en) * 1994-01-13 1996-10-01 Bemis Manufacturing Company Folding rocking chair
AUPN376995A0 (en) * 1995-06-23 1995-07-20 Sebel Furniture Limited A school chair
ES2214924B1 (es) * 2001-05-25 2005-06-01 Carme Balliu Falgueras Tumbona mejorada.
NL1024189C2 (nl) * 2003-08-29 2005-03-01 Hartman Groep Bv Zetel met veilige armlegger.
US7059670B2 (en) * 2004-10-01 2006-06-13 Virco Mgmt. Corporation Stackable chair-desk frame
USD509970S1 (en) * 2005-01-21 2005-09-27 Adams Mfg. Corp. Folding chair
US20120280549A1 (en) * 2011-05-06 2012-11-08 Jgr Copa, Llc Chair adjustment mechanism
US9173495B2 (en) 2011-05-06 2015-11-03 Jgr Copa, Llc Chair adjustment mechanism
USD784116S1 (en) 2014-06-18 2017-04-18 Jgr Copa, Llc Folding chair arm adjustment bracket and stem
USD1005714S1 (en) * 2022-09-08 2023-11-28 Taizhou Sukk Technology Co., Ltd. Folding chair

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2334612A1 (de) * 1972-07-31 1975-01-23 Kettler Metallwaren Heinz Sitzmoebel mit schwenkbarer rueckenlehne
FR2391680A1 (fr) * 1977-05-23 1978-12-22 Bremshey Ag Siege muni d'une table rabattable, en particulier siege de voyageur
FR2579435A1 (fr) * 1985-03-27 1986-10-03 Chappaz Sa Manufacture Claude Tablette-ecritoire mobile de siege

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2916086A (en) * 1958-07-07 1959-12-08 Hampden Specialty Products Inc Ratchet mechanism for swingable back-rest
US2920686A (en) * 1958-10-09 1960-01-12 Morton I Thomas Folding chair with concealed back adjustment
DE8436612U1 (de) * 1984-12-14 1985-05-23 Heinz Kettler Metallwarenfabrik Gmbh & Co, 4763 Ense Klappsessel
FR2593686B1 (fr) * 1986-01-30 1988-06-03 Grosfillex Sarl Fauteuil empilable dont le dossier est reglable en inclinaison et pliable
US4784432A (en) * 1987-08-07 1988-11-15 Rubbermaid Incorporated Adjustable chair

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2334612A1 (de) * 1972-07-31 1975-01-23 Kettler Metallwaren Heinz Sitzmoebel mit schwenkbarer rueckenlehne
FR2391680A1 (fr) * 1977-05-23 1978-12-22 Bremshey Ag Siege muni d'une table rabattable, en particulier siege de voyageur
FR2579435A1 (fr) * 1985-03-27 1986-10-03 Chappaz Sa Manufacture Claude Tablette-ecritoire mobile de siege

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995015099A1 (fr) * 1993-12-03 1995-06-08 Gilles Fantino Siege dont le dossier articule fait office de couverture de protection pour l'assise lorsqu'il est rabattu
FR2713064A1 (fr) * 1993-12-03 1995-06-09 Fantino Gilles Siège dont le dossier articulé fait office de couverture de protection pour l'assise lorsqu'il est rabattu.

Also Published As

Publication number Publication date
GR3001964T3 (en) 1992-11-23
US4906046A (en) 1990-03-06
DE68900062D1 (de) 1991-05-29
FR2627969B1 (fr) 1990-08-17
EP0331558B1 (de) 1991-04-24
CA1297773C (en) 1992-03-24
FR2627969A1 (fr) 1989-09-08
ES2022754B3 (es) 1991-12-01

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