WO2008049255A1 - Chaise - Google Patents

Chaise Download PDF

Info

Publication number
WO2008049255A1
WO2008049255A1 PCT/CH2007/000520 CH2007000520W WO2008049255A1 WO 2008049255 A1 WO2008049255 A1 WO 2008049255A1 CH 2007000520 W CH2007000520 W CH 2007000520W WO 2008049255 A1 WO2008049255 A1 WO 2008049255A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
zone
toothing
base part
height
Prior art date
Application number
PCT/CH2007/000520
Other languages
German (de)
English (en)
Inventor
Egon Bräuning
Original Assignee
Vitra Patente Ag
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 Vitra Patente Ag filed Critical Vitra Patente Ag
Publication of WO2008049255A1 publication Critical patent/WO2008049255A1/fr

Links

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
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
    • 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
    • A47C1/03—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests
    • A47C1/0303—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests adjustable rectilinearly in vertical direction
    • A47C1/0305—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests adjustable rectilinearly in vertical direction by peg-and-notch or pawl-and-ratchet mechanism

Definitions

  • the invention relates to a chair with a mechanism applied to a base, a seat shell carried by the mechanism for forming a seat, a back shell provided for forming a backrest and height-adjustable armrests arranged laterally of the seat.
  • the subject matter is the seat shell, the armrest construction, a seat cover and the lumbar support adjustment.
  • the chair initially has a patch on a base mechanism and a supported by this to form a seat shell.
  • a back shell is present.
  • Height-adjustable armrests are arranged to the side of the seat. From a sitting zone of the seat rises in one piece on both sides of the seating zone each have an arm zone in which the respective associated armrest is guided.
  • the following features relate to specific embodiments of the invention:
  • the armrest comprises a height-movable base part, in which two downwardly facing bolts are fixedly inserted.
  • a guide is provided for each bolt.
  • a toothing is arranged in the arm zone, in the locked state engages a lever system supported thereon, which blocks the lowering of the armrest and can be disengaged by means of an actuating element.
  • the lever system is composed of two downwardly V-shaped levers, which are interconnected by an axle, which is located on the base part in an axle box.
  • the toothing is mirror-symmetrical to one another on two opposite walls.
  • the scissors-like interconnected levers end up each with a spreading nose and below each with a bouncing lug.
  • a spring acts on both levers to spread the two bouncing lugs from each other and thus press into the toothing.
  • the base part loaded by the user thus receives a triangular support on the axle and twice in the toothing.
  • a spreading member is present, which moves when depressing the adjusting element between the expansion lugs on the lever system and thereby brings the two bouncing lugs out of engagement of the toothing.
  • the actuator has a switching member which is accessible on the top of a cushion pad.
  • the arm zone ends at the top of a circumferential collar, the upper edge of which represents a stop for the lowering of the base part to the minimum setting height.
  • the bolts are provided at the lower end with a securing element, which form a stop for pulling the base member to the maximum setting height.
  • the toothing has between the intended for the placement of the bouncing lugs steps inclined towards each other upward from both walls of the toothing, and therefore when pulling up the base part without actuation of the actuating element, the bouncing lugs of the toothing push away against the action of the spring.
  • the seat shell with seat zone and arm zones is covered by a seat cover in the form of a one-piece, sack-shaped molded knit part.
  • a seat cover in the form of a one-piece, sack-shaped molded knit part.
  • Figure 1A - a complete chair in the form of an office swivel chair with height-adjustable armrests, in momentarily minimal adjustment height, in a perspective front view;
  • Figure 1 B the chair according to Figure 1A, with the armrests at maximum height;
  • FIG. 2A shows the chair according to Figure 1A without upholstery and covers
  • FIG. 2B shows the chair according to FIG. 1A, without a complete underframe, in a transparent side view;
  • Figure 4A an arm zone with transition to the seat zone on the seat, in a perspective side view from above;
  • Figure 4B the seat of Figure 3, in a perspective side view;
  • Figure 5 components of the armrest, in partial exploded view
  • Figure 6A the operating principle of the armrest, with dissolved lever system, in a minimum setting height
  • Figure 6B the principle of operation of the armrest, with locked lever system, in medium height
  • Figure 6C the principle of operation of the armrest, with locked lever system, in maximum adjustment height
  • the chair initially consists of a base frame 1, the mechanism 2 set thereon, the seat shell 3 supported by it, which is surrounded by a padding 6 and externally by a seat cover 4 and thus forms the seat. Laterally, the two arms 5, which can be changed by actuation of a switching member 520 between a maximum adjusting height h max and Requiring a minimum set-up height h m j n charge.
  • the backrest consists essentially of a back shell 7, which is also surrounded by a padding 6 and externally may have a reference 9.
  • the seat shell 3 as a one-piece plastic injection-molded part has a seating zone 30, which merges into an ascending arm zone 31 on both sides, and accommodates therein the armrest 5, which has a cushion pad 50 at the top, through which the switching member 520 is accessible as part of the control element 52. Below the cushion support 50 is located to cover a shoe-shaped cap 51.
  • the open to the side arm zone 31 of the seat 3 can be with a cover 56, which comes to rest under the seat cover 4, strig.
  • the back shell 7 is also a one-piece plastic injection molded part and has located in the lower center a tongue portion 70 which is U-shaped surrounded by a first cutout 71 and below a second cutout 73 has.
  • the seat cover 4 is a one-piece, sack-shaped molded knit part, which can pass over the seat shell 3 provided with the upholstery 6, thereby covering the seat with its sitting zone 40 and at the same time straddling both arm zones 31.
  • the raised base part 53 see Figure 5
  • the higher elastic backrest zone 41 in the seat cover 4 extends.
  • a rear bracket-like extending back support 20 extends to which the backrest is fastened with its connection portion 72 as a whole.
  • an actuator 82 e.g. a knob on the back of the backrest accessible by means of which an abutment 8 can be adjusted.
  • a slider 80 moves up or down, so that in this case the support element 81 rests at the upper end of the slider 80 on the limited flexible tongue region 70 at a selectable height. With actuation of the actuator 82 thus the intensity and effective position of the lumbar support can be varied.
  • the mobility of the tongue region 70 is achieved decisively by the free cuts 71, 73.
  • FIGS. 4A and 4B are identical to FIGS. 4A and 4B.
  • the arm zone 31 is closed, but open towards the outside.
  • a toothing 312 which is formed mirror-symmetrically on two opposite wall webs, wherein between there is a cavity.
  • the arm zone 31 terminates with a circumferentially closed collar 310, the upper edge of which forms the boundary for the base part 53, which has been lowered to a minimum setting height h mm .
  • the armrest 5 first includes the aforementioned pad 50, in which there is a hole 500 to the passage of the switching element 520.
  • the cap 51 has a top surface 510 on which the cushion pad 50 comes to lie.
  • In this top surface 510 are a first hole 511 for the switching element 520 and two second holes 512 for receiving the uppermost edges of two bearing esters 530, which are arranged in the base part 53.
  • Third holes 513 in the cap 51 are for screwing. Downwardly, the top surface 510 is surrounded by an edge 516 which continues in the rear region in a further downwardly extending heel 517.
  • the actuator 52 has the shape of a rocker with the button-shaped switching organ 520 at one end and a nose 522 at the other end. Below the switching element 520 sits a spring 525. On the underside of the adjusting element 52 is a wedge-shaped, rounded spreader 521. In the bearing Nests 530 locking members 531 are installed to form with the complementary to the underside of the cushion pad 50 organs snap connections. From the bottom of the base 53, eyelets 533 extend to secure the cap 51 thereto. At the bottom of the base part 53, an engagement 534 is arranged and through an opening 535 leads to a journal bearing 532.
  • the lever system 55 is composed of two individual levers 551, which are connected to each other on an axis 550 like a scissor and open downwards V-shaped. Through both levers 551 extends an axle hole 554 for receiving the shaft 550, which carries a spring 556, wherein each spring extension is fixed in a bed 555 on each lever 551, so that the lever system 55 has a tendency to spread. Below the levers 551 end with a bounce lip 552 and above each with a spreading nose 553, wherein both expansion lugs 553 occupy an upwardly open V-shape.
  • the lifting system 55 spreads and the bouncing lugs 552 sit on both sides of the toothing 312 at the selected setting height h (see FIG. 6B).
  • a very stable support results over a triangle, namely on the axis 550 and twice with the bouncing lugs 552 on the toothing 312.
  • the base part 53 carrying the cushioning support 50 has moved furthest upwards and the bouncing lugs 552 are seated at the upper end of the toothing 312 (see FIG. 6C).
  • the securing elements 540 on the bolt 54 reach a stop and block a further upward movement.
  • the backrest zone 41 of the seat cover 4, which spans the base part 53, is stretched most intensively.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

Selon l'invention, la chaise comprend une mécanique (2) placée sur un châssis inférieur (1) et une enveloppe d'assise (3) supportée par ladite mécanique, ceci permettant la création d'un siège. L'objectif de l'invention est de produire un dossier. A cet effet, une enveloppe de dossier (7) est mise en place. Des accoudoirs (5), réglables en hauteur, sont disposés latéralement, de part et d'autre du siège. Une zone pour les bras (31) s'élève, d'une seule pièce, et de part et d'autre de la zone d'assise (30), à partir de la zone assise (30) de l'enveloppe assise (3), un accoudoir (5) étant placé dans cette zone pour les bras. L'accoudoir (5) comprend une base (53) mobile en hauteur, dans laquelle deux axes (54) descendant vers le bas sont fixés. Dans la zone pour les bras (31), une coulisse (311) est prévue pour chaque axe (54). De plus, un engrènement (312) est disposé dans cette partie, dans lequel, à l'arrêt, un système de levier (55) pouvant s'appuyer sur celui-ci, s'enclenche, ce qui bloque la descente de l'accoudoir (5) et il peut être désenclenché sous l'action d'un élément de réglage (52).
PCT/CH2007/000520 2006-10-24 2007-10-22 Chaise WO2008049255A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006016475.8 2006-10-24
DE202006016475U DE202006016475U1 (de) 2006-10-24 2006-10-24 Stuhl

Publications (1)

Publication Number Publication Date
WO2008049255A1 true WO2008049255A1 (fr) 2008-05-02

Family

ID=37670557

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2007/000520 WO2008049255A1 (fr) 2006-10-24 2007-10-22 Chaise

Country Status (2)

Country Link
DE (1) DE202006016475U1 (fr)
WO (1) WO2008049255A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869623A (en) * 1957-06-03 1959-01-20 Poulin Peter Chair with liftable arm rests
CA2084794A1 (fr) * 1992-12-08 1994-06-09 Gary King Neil Accoudoir
US20030230918A1 (en) * 2002-06-18 2003-12-18 Hector Serber Dynamically balanced seat assembly having independently and arcuately movable seat and backrest and method
NL1024189C2 (nl) * 2003-08-29 2005-03-01 Hartman Groep Bv Zetel met veilige armlegger.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869623A (en) * 1957-06-03 1959-01-20 Poulin Peter Chair with liftable arm rests
CA2084794A1 (fr) * 1992-12-08 1994-06-09 Gary King Neil Accoudoir
US20030230918A1 (en) * 2002-06-18 2003-12-18 Hector Serber Dynamically balanced seat assembly having independently and arcuately movable seat and backrest and method
NL1024189C2 (nl) * 2003-08-29 2005-03-01 Hartman Groep Bv Zetel met veilige armlegger.

Also Published As

Publication number Publication date
DE202006016475U1 (de) 2007-01-04

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