EP3649894A1 - Sitz mit vorrichtung zum spannen der sitzfläche - Google Patents

Sitz mit vorrichtung zum spannen der sitzfläche Download PDF

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Publication number
EP3649894A1
EP3649894A1 EP19207187.6A EP19207187A EP3649894A1 EP 3649894 A1 EP3649894 A1 EP 3649894A1 EP 19207187 A EP19207187 A EP 19207187A EP 3649894 A1 EP3649894 A1 EP 3649894A1
Authority
EP
European Patent Office
Prior art keywords
seat
edge
guide member
housing
shaped
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
EP19207187.6A
Other languages
English (en)
French (fr)
Other versions
EP3649894B1 (de
EP3649894C0 (de
Inventor
Jean-Noël PERNET
Corrado Roani
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.)
Lafuma Mobilier SAS
Original Assignee
Lafuma Mobilier 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
Application filed by Lafuma Mobilier SAS filed Critical Lafuma Mobilier SAS
Publication of EP3649894A1 publication Critical patent/EP3649894A1/de
Application granted granted Critical
Publication of EP3649894B1 publication Critical patent/EP3649894B1/de
Publication of EP3649894C0 publication Critical patent/EP3649894C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • A47C5/00—Chairs of special materials
    • A47C5/04—Metal chairs, e.g. tubular
    • A47C5/06—Special adaptation of seat upholstery or fabric for attachment to tubular chairs

Definitions

  • the present invention relates to the field of furniture and more particularly the field of seats comprising a seat in stretchable and stretched material.
  • the present invention relates to seats intended for outdoor or indoor use.
  • the term seat means an object for domestic use to sit one or more people, comprising at least one seat.
  • the seat can have in addition to a seat, a backrest, legs, armrests or a single seat.
  • a seat within the meaning of the invention can therefore be a chair, a sun lounger, a deckchair, a sofa, a bergère, an armchair, a sofa, a stool, a bench or even an ottoman.
  • the seat of a seat when the latter is made of a flexible material and mounted directly on a frame or legs supporting only the ends or the periphery of said seat. If the seat is not stretched, you cannot sit on it. Conventionally, the seat is held taut by screws fixed on the periphery of the seat and which secure the latter to the frame or the base of the seat. The screws pass directly through the seat material, which damages the seat material in a localized manner and which can weaken the holding of the seat if too much weight is applied to the seat causing tears and accelerated wear . In addition, the screwing does not control the tensioning of the seat during the first assembly or if the latter becomes slack over time. Furthermore, the fixing of the seat is not always optimal because it is difficult to visualize the locations dedicated to screwing through the canvas and thereby effect a good positioning of the stretched seat and the screws now l 'tight seat.
  • the object of the invention is to remedy all or part of the aforementioned drawbacks by proposing a seat the tensioning of the seat of which is simple, intuitive, rapid, reliable and which makes it possible to maintain the integrity of the seat over the time.
  • the edge of the seat retains its integrity thanks to the stiffening member and to its cooperation with the guide member which does not damage the material of the seat when it is placed against the first cross member.
  • the tensioning of the seat is carried out uniformly over the length of the first edge thanks to the elongated shape of the housing of the guide member.
  • the guide member allows the mechanical retention of the assembly before fixing and tensioning.
  • the first edge of the seat and preferably, at the first edge and the second edge of the seat, comprises a slide formed by a folding of the end of the edge of the seat, the slide being shaped to house the stiffening member within it.
  • the stiffening member is a rod.
  • the stiffening member can be made of metal or plastic or wood.
  • the seat is made of a stretchable material, for example a canvas which may be made of synthetic, natural material, or a mixture both.
  • the seat can be made for example of polyester sheathed in polyvinyl chloride.
  • the housing is in the form of a longitudinal groove.
  • the housing of the guide member is arranged in an upper portion of the guide member, relative to the direction of mounting of the guide member on the cross member of the seat frame.
  • the housing comprises stiffening spacers arranged in the housing transversely with respect to a longitudinal direction in which the guide member extends.
  • the spacers make it possible to stiffen the walls of the guide member.
  • the spacers are shaped to match on one portion the shape of the stiffening member and on another adjacent portion to match the shape of a lower portion of the first crosspiece.
  • a first housing part of the housing of the guide member is shaped to cooperate with the stiffening member and the first edge of the seat.
  • a second housing part of the housing of the guide member is shaped to cooperate with the first cross member, and particularly with a lower portion of the first cross member.
  • the guide member comprises at least one projecting indexing lug extending in a direction substantially perpendicular to the longitudinal direction in which the guide member extends.
  • the at least one indexing lug assists in positioning the fixing screws intended to fix the guide member on the first crosspiece.
  • the seat material gradually stretches and stretches since it is driven by the indexing lug.
  • the first edge and preferably the first and the second edge comprises at least one hole for passage of the indexing lug.
  • the indexing lug has a frustoconical shape, which allows insertion through the through hole of the edge of the seat, facilitated and progressive.
  • the guide member comprises a plurality of indexing pins distributed over the length of the guide member, which makes it possible to distribute the forces uniformly along the guide member and to guide correctly positioning of all the fixing screws and allowing their insertion into the orifices of the cross member almost simultaneously in order to gain assembly speed.
  • the indexing pins are distributed regularly over the length of the guide member.
  • the indexing pins are distributed so as to be each positioned opposite a bore formed on the cross-member. The pins thus inserted in the cross member, allow mechanical retention of the guide member before it is secured by screwing.
  • the indexing pins are distributed over the length of the guide member in the housing and alternately with orifices intended for the passage of fixing screws.
  • At least the first cross member, and preferably each cross member of the seat frame comprises at least one hole, and preferably a plurality of holes, shaped to receive at least one indexing lug or a screw of fixation within it.
  • the guide member comprises a portion opposite to the housing, comprising a first face, preferably substantially planar, and a second face arranged angularly, preferably substantially perpendicularly, relative to the first face, an angular leave being formed at the intersection of the first face and the second face.
  • this portion allows the stacking of one seat on another and has a spacer function allowing rapid and guided stacking.
  • the upper portion of a cross member of a first seat is intended to cooperate and more particularly to be housed in the portion opposite to the housing of the guide member of a second seat, said second seat being intended to be stacked on the first seat.
  • each guide member further comprises a hook-shaped end allowing it to be hung on an upright of the backrest or on a base at the level of the seat frame.
  • the seat is equipped with a second tensioning device according to the invention arranged at the second cross member of the seat frame.
  • the tensioning devices are identical and symmetrical.
  • the seat 1 according to the invention is illustrated in figures 1 to 4 .
  • This seat 1 is a chair in the example illustrated, but obviously the invention is not limited to this single example, the seat according to the invention can take any form, for example, it can be a sofa, a shepherdess, an armchair, a sofa, a stool, a bench or even an ottoman.
  • the seat 1 comprises a backrest 2, two legs 3, 4 each comprising two feet 5.
  • the seat 1 comprises a seat frame 6 and a seat 7.
  • the seat frame 6 comprises, as we can see in particular figure 2 , at least a first cross member 61 and a second cross member 62 opposite the first cross member 61 and positioned at a distance from the first cross member 61 so as to delimit a seating space 63.
  • the seat 7 is made of stretchable material and shaped to at least partially cover the seat space 63 delimited by the crosspieces 61, 62 of the seat frame 6.
  • the seat 7 is a canvas which can be in synthetic, natural, or a mixture of both.
  • the seat 7 comprises at least a first edge 71 and a second edge 72 opposite, the first edge 71 being positioned on the first cross member 61 of the seat frame 6 and the second edge 72 being positioned on the second cross member 62 of the frame seat 6 as illustrated in figure 2 .
  • each cross member 61, 62 of the seat frame 6 comprises a plurality of holes shaped to receive either an indexing lug 85 or a fixing screw 9 therein, as will be described in the following description.
  • the seat 1 further comprises two identical tensioning devices 8 and each positioned respectively of the first cross member 61 or the second cross member 62 of the seat frame 6, as visible in figure 2 .
  • Each tensioning device 8 is fixed to a cross member 61, 62 of the seat frame 6 by fixing screws 9.
  • Each cross member 61, 62 of the seat frame 6, comprises at least one bore 63, and preferably a plurality of holes 63, shaped to receive at least one indexing lug 85 or a fixing screw 9 therein, respectively allowing the mechanical retention and the joining of the tensioning device 8 on the seat frame 6.
  • Each tensioning device 8 comprises a stiffening member 81 arranged on an edge 71, 72 of the seat 7. More particularly, the end of each edge 71, 72 of the seat 7 is folded so as to form a slide 73 in which the stiffening member 81 is inserted.
  • the stiffening member 81 is preferably a rod but can be in any other form suitable for being inserted in the slide 73 or suitable for being secured to the end of the edge 71, 72 of the seat 7.
  • the stiffening member 81 extending at least partially and preferably all along the edge 71, 72.
  • the stiffening member 81 of the tensioning device can be viewed at Figures 9 to 11 .
  • the tensioning device 8 further comprises an elongated guide member 82 configured to cooperate with the stiffening member 81.
  • the guide member 82 is illustrated in detail in Figures 5 to 8 . As shown in figure 11 , the guide member 82 of the tensioning device 8 is configured to press and block the edge 71, 72 of the seat 7 and the stiffening member 81 against a cross member 61, 62 of the seat frame 6.
  • the guide member 82 comprises a longitudinal housing 83 shaped to at least partially house the stiffening member 81, an edge 71, 72 of the seat 7 and a portion of the cross member 61, 62 corresponding to the edge 71, 72.
  • the housing 83 of the guide member 82 is arranged in an upper portion of the guide member 82 and is in the form of a longitudinal groove preferably extending over the entire length of the guide member 82.
  • the housing 83 of the guide member 82 comprises a first housing part P1 of the housing 83 of the guide member 82 is shaped to cooperate with the stiffening member 81 and an edge 71, 72 of the seat 7 and a second housing P2 housing 83 of the guide member 82 is shaped to cooperate with the cross member 61, 62, and particularly with a lower portion of the cross member 61, 62, as illustrated in figure 8 .
  • the housing 83 comprises stiffening spacers 84 arranged in the housing 83 transversely to a longitudinal direction XX in which the guide member 82 extends.
  • the spacers 84 are shaped to match the shape of the portion P1 stiffening member 81 and on another adjacent portion P2 to match the shape of a lower portion of the cross member 61, 62.
  • the guide member 82 comprises pins 89 configured to grip the first edge 71 of the seat 7. These pins 89 are preferably positioned around the orifices 87.
  • the guide member 82 is also configured to guide the insertion of the fixing screws 50 into the cross-member 61, 62 and thus ensure the fixing of the seat 7 on the seat frame 6 and the maintenance of the tensioning of the seat 7.
  • the guide member comprises at least one indexing lug 85, and more preferably a plurality of indexing lugs 85, as illustrated in particular in figure 7 .
  • the indexing lugs 85 are positioned in the housing 83 along the length of the guide member 82.
  • the indexing lugs 85 are projecting and extend in a direction substantially perpendicular to the longitudinal direction XX in which the l guide body 82.
  • each edge 71, 72 of the seat 7 comprises at least one through hole 74 through which an indexing lug 85 passes, as illustrated in figure 9 especially.
  • the guide member 82 is also configured to allow a stable and simple stacking of seats according to the invention.
  • the guide member 82 comprises a portion 86 opposite the housing 83, comprising a first face 86a substantially planar and a second face 86b arranged angularly with respect to the first face 86a, an angular leave being formed at the intersection of the first face 86a and the second face 86b.
  • this portion 86 allows the stacking of a seat 1 according to the invention on another as illustrated in figure 4 .
  • the first face 86a is shaped to receive an upper portion of a crosspiece 61, 62 of a first seat 1 is intended to cooperate and more particularly to be housed in the portion 86 opposite the housing 83 of the guide member 82 of a second seat 1, said second seat 1 being intended to be stacked on the first seat 1 as illustrated in figure 4 .
  • the guide member 82 comprises a plurality of fixing holes 87 through which the fixing screws 9 pass in order to secure the guide member 82 to a crosspiece 61, 62.
  • These fixing holes 87 are intended to be positioned opposite the holes 63 households on the sleepers 61, 62.
  • each guide member 82 further comprises a hook-shaped end 88 allowing it to be hung on an upright of the backrest 2 or on a base 3, 4 at the level of the seat frame 6, as illustrated in Figures 5 to 7 .
  • a mounting tool (not visible) which cooperates with cavities 90 formed on the guide member 82 on the portion opposite the housing 83 and preferably on the second face 86b.
  • the guide member 82 is positioned relative to the first edge 71 of the seat 7, by inserting the indexing pins 85 in through holes 74 formed on the first edge 71 of the seat 7.
  • the screw 9 is already mounted in the guide member 82 so that the screw head 91 is pressed against the first face 86a of the portion 86 opposite the housing 83 of the guide member 82 and so that the body 92 of the screw 9 extends into the housing 83 substantially perpendicularly.
  • a second step illustrated in figure 10 the indexing lug 85 is pushed through the through hole 74 until the stiffening member 81 surrounded by the slide 73 of the first edge 71 of the seat 7 is housed in the first housing portion P1 of the housing 83.
  • the first edge 71 of the seat is gripped by the pins 89 of the guide member 82 allowing the first edge 71 to be held in position.
  • the fixing screw 9 also penetrates a adjacent passage hole 74 formed on the first edge 71 of the seat 7.
  • a wall 83a of the housing is positioned in abutment against the first crosspiece 61. In this step, the indexing lug 85 reaches a bore 63 of the first cross 61.
  • the guide member 82 will be moved in a rotational movement, in particular thanks to the support of the wall 83a of the housing 83 on the crosspiece 61 so that as the indexing lug 85 penetrates the bore 63 of the first cross member 61, the material of the seat 7 stretches and tends gradually.
  • a third step illustrated in figure 11 the body 92 of the fixing screw 9 is fully inserted in the cross-member 61, the indexing lug 85 is partly retracted in the cross-member 61, a lower portion of the cross-member 61 is housed in the second housing portion P2 of the housing 83 of the guide member 82. It is then possible to secure the tensioning device 8 by tightening the fixing screw 9, the tightening completing the tensioning of the seat 7 and its maintenance at remains.
  • the screw 9 can be arranged in the guide member 82 from the first mounting step.
  • the seat is advantageously removable by loosening the screws and removing the guide member 82.

Landscapes

  • Seats For Vehicles (AREA)
  • Connection Of Plates (AREA)
EP19207187.6A 2018-11-08 2019-11-05 Sitz mit vorrichtung zum spannen der sitzfläche Active EP3649894B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1860261A FR3088184B1 (fr) 2018-11-08 2018-11-08 Siege avec dispositif de mise en tension d’assise

Publications (3)

Publication Number Publication Date
EP3649894A1 true EP3649894A1 (de) 2020-05-13
EP3649894B1 EP3649894B1 (de) 2024-07-10
EP3649894C0 EP3649894C0 (de) 2024-07-10

Family

ID=65685681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19207187.6A Active EP3649894B1 (de) 2018-11-08 2019-11-05 Sitz mit vorrichtung zum spannen der sitzfläche

Country Status (2)

Country Link
EP (1) EP3649894B1 (de)
FR (1) FR3088184B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863698A (en) * 1973-03-10 1975-02-04 Uchida Sharyo Co Chair with a detachable seat
US5338091A (en) * 1991-11-07 1994-08-16 Miller Elmo E Welt lock furniture construction
US5716101A (en) * 1996-07-12 1998-02-10 Bjip, Inc. Seat rail attachment device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6254190B1 (en) * 1999-09-29 2001-07-03 Peter G. G. Gregory Chair having a seat with differential front and rear support portions
KR100885152B1 (ko) * 2007-07-16 2009-02-23 듀오백코리아 주식회사 의자의 메쉬형 쿠션 어셈블리 및 이의 조립 방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863698A (en) * 1973-03-10 1975-02-04 Uchida Sharyo Co Chair with a detachable seat
US5338091A (en) * 1991-11-07 1994-08-16 Miller Elmo E Welt lock furniture construction
US5716101A (en) * 1996-07-12 1998-02-10 Bjip, Inc. Seat rail attachment device

Also Published As

Publication number Publication date
EP3649894B1 (de) 2024-07-10
FR3088184B1 (fr) 2021-04-23
EP3649894C0 (de) 2024-07-10
FR3088184A1 (fr) 2020-05-15

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