EP2010027A2 - Mecanisme pour une chaise - Google Patents

Mecanisme pour une chaise

Info

Publication number
EP2010027A2
EP2010027A2 EP07720098A EP07720098A EP2010027A2 EP 2010027 A2 EP2010027 A2 EP 2010027A2 EP 07720098 A EP07720098 A EP 07720098A EP 07720098 A EP07720098 A EP 07720098A EP 2010027 A2 EP2010027 A2 EP 2010027A2
Authority
EP
European Patent Office
Prior art keywords
axis
rotation
base
seat
backrest
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.)
Withdrawn
Application number
EP07720098A
Other languages
German (de)
English (en)
Inventor
Egon Bräuning
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.)
Vitra AG
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 EP2010027A2 publication Critical patent/EP2010027A2/fr
Withdrawn legal-status Critical Current

Links

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
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
    • 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
    • A47C1/023—Reclining or easy chairs having independently-adjustable supporting parts the parts being horizontally-adjustable seats ; Expandable seats or the like, e.g. seats with horizontally adjustable parts
    • 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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • 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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03266—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with adjustable elasticity
    • 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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
    • 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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03283—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with fluid springs

Definitions

  • the invention relates to a chair mechanism, in particular for a rotatable office chair with a vertically arranged in the base gas spring for adjustability of the height of the seat.
  • the chair mechanism causes with the backward inclination of the backrest, which initiates the user by shifting the weight, the seat synchronously lowered backwards.
  • Synchronous mechanisms for chairs are many, e.g. from the patent publications EP 0 592 369 B1, EP 0 839 478 B1, EP 1 039 816 B1, EP 1 358 821 A1 and WO 2005/120291 A1, and have become established as the standard for comfortable work chairs on the market.
  • the invention has for its object to propose a further improved chair mechanism that responds sensitively to weight transfers. Another object is to facilitate the adjustment of the bias of the mechanism for less weighty or heavier persons. A next task is to make the mechanics more universal in order to enable different types of connection of a backrest and armrests.
  • the mechanism is intended for a chair, in particular for a rotatable office chair with a vertically arranged in the base gas spring with a telescopically extendable piston rod to adjust the height of a seat.
  • the mechanism has a per se fixed base through which a fixed first axis of rotation extends and on which a tiltable seat support is mounted.
  • a front arranged connecting means which is articulated in a fixed third axis of rotation at the base and in a movable fourth axis of rotation.
  • a rear connection means is articulated on the one hand in a movable sixth axis of rotation and on the other hand in a movable further axis of rotation.
  • the mechanism at least a first, acting between the base and the seat carrier spring element is present, which is articulated in the fourth axis of rotation.
  • the first spring element is articulated on the other hand in a movable eighth axis of rotation, which can be changed by means of an externally operable by the user gearbox in position.
  • the transmission is articulated in a fixed second axis of rotation which extends through the base, in the eighth axis of rotation and in a movable ninth axis of rotation.
  • the eighth axis of rotation and the ninth axis of rotation In the rest position with at least in principle horizontally placed seat and vertically upright backrest are the second axis of rotation, the eighth axis of rotation and the ninth axis of rotation at least substantially perpendicular to each other.
  • the eighth axis of rotation moves in the direction of the third axis of rotation in front of the second axis of rotation and the ninth axis of rotation moves in the opposite direction behind the second axis of rotation.
  • the first spring element is a gas spring with a cylinder and a telescopically extendable piston rod, which is extended furthest in the rest position at the maximum downwardly directed eighth rotary axis and at the maximum upward eighth rotary axis is retracted furthest in the relaxed position.
  • the piston rod is articulated in the fourth axis of rotation.
  • pairwise spring units positioned, which are supported on the one hand in a bearing of the base and on the other hand below bearing strips in bearing blocks, the bearing strips are attached from both sides to the base.
  • the bearing strips are preferably made of plastic and bil- thus with the attached, preferably metallic components self-lubricating bearings.
  • the front-side connecting means is designed as a plate-shaped lever through which the third and fourth axes of rotation extend.
  • the rear connecting means comprises a sixth axle rod and a sleeve piece or a sixth axle rod connected thereto by arms and a seventh axle rod connected thereto by arms, through which the associated fifth, sixth and seventh axes of rotation extend.
  • a back support may be hinged within the base or a pair of uprights externally attached to the base to secure the backrest thereto.
  • the bearing strips have pins for penetration into the front lever and the intermediate piece.
  • the bearing rails have bearings for receiving the ninth axle rod, which penetrates the transmission, and for receiving the sixth axle rod.
  • a user-operable locking element is arranged on the intermediate piece.
  • the locking element acts on a guided in the piston rod of the gas spring valve rod.
  • Figure 1A a chair with the inventive mechanism using spars, in perspective view from below;
  • Figure 1B the chair according to Figure 1A in the rest position, in side view;
  • Figure 1 C the chair according to Figure 1A in relax position, in side view;
  • Figure 2A the main components of the mechanics, in an exploded view
  • Figure 2B the variants of back straps, back levers and upholstered plates and a pair of spars, in an exploded view
  • Figure 3A a base with a plurality of axle rods, in perspective view from above
  • FIG. 3B the base according to FIG. 3A, in perspective view from below;
  • Figure 4A a front lever, in perspective view from above;
  • Figure 4B the front lever according to Figure 4A, in perspective view from below;
  • Figure 5A a seat support, in perspective view from below;
  • Figure 5B the seat support according to Figure 5A, in a perspective view from above;
  • Figure 6A - a transmission with mounted gas spring and bolt, in an exploded view
  • FIG. 6D the arrangement according to FIG. 6C, in a changed perspective
  • FIG. 8A - a pair of bearing strips, in perspective view from below;
  • FIG. 8B shows the bearing strips according to FIG. 8A, in a perspective view from above;
  • FIG. 9A - a back support first variant, with Achsstäben, in perspective view from above;
  • FIG. 9B a back support second variant, with Achsstäben, in perspective view from above;
  • Figure 10A - a back lever first variant, with sockets, in perspective view
  • Figure 10B - a back lever second variant, with sockets, in perspective view
  • Figure 1 OC - a pair of spars, in perspective view
  • Figure 11A - a pad plate, unadjustable, in perspective view from above;
  • Figure 11 B a cushion plate, adjustable, in perspective view from above;
  • Figure 11C the cushion plate according to Figure 11 B, in perspective view from below;
  • Figure 12A a front lever with inserted intermediate piece and gas spring, in perspective view from above;
  • Figure 12 B the arrangement according to Figure 12A, in perspective view from below;
  • Figure 13A the mechanics in the first philosophical.hase, with a back support of the first variant
  • Figure 13B the mechanics in zwejte.r structuriph.ase, with a back support of the first variant
  • Figure 13C the mechanics in third . At construction stage, with a back support of the first variant;
  • Figure 13D the mechanics in yjerter . Build-up phase, with a back support and a back lever each first variant;
  • Figure 13E the mechanics in fifth. Build-up phase, with a back support and a back lever each first variant;
  • FIG. 13G the arrangement according to FIG. 13F, in a changed perspective
  • FIG. 13H the arrangement according to FIG. 13F, in perspective view from below;
  • FIG. 14A shows the mechanism with a back support of the second variant and a back lever of the first variant
  • FIG. 14B shows the arrangement according to FIG. 14A, with the seat support completed, in perspective view from above;
  • Figure 14C the arrangement according to Figure 14B, with a backrest completed, in perspective view from above;
  • Figure 14D the arrangement according to Figure 14C, in perspective view from below;
  • Figure 15A the mechanism with a back lever second variant and a pair of spars, in an exploded view
  • FIG 15C the arrangement according to Figure 15B, completed with a seat support, in perspective view from below;
  • FIG. 16A shows the mechanism with a back support of the second variant, in the rest position as a functional principle in vertical section
  • FIG. 16B shows the arrangement according to FIG. 16A, in offset vertical section
  • FIG. 16C shows the arrangement according to FIG. 16A, in a again offset vertical section
  • Figure 16D an axis diagram, in rest position
  • FIG. 17A - the arrangement according to FIG. 16A, in relax position as a functional principle in vertical section;
  • FIG. 17B shows the arrangement according to FIG. 17A, in offset vertical section
  • FIG. 17C shows the arrangement according to FIG. 17A, in a again offset vertical section
  • Figure 17D an axis diagram, in relax position
  • Figure 18 - a superimposed axis scheme of rest and relaxation position.
  • FIGS. 1A to 1C The mechanism 2 according to the invention is placed on a vertical gas spring 12 which, with its standpipe 11, is inserted in a leg 10, which is typically provided with bottom elements 13, in particular in roll form.
  • the star-shaped foot 10 forms with the standpipe 11, theuitengasfeder 12 and the bottom elements 13 a base 1.
  • the upper end of the tribalngasfeder 12 inserted in a basically cup-shaped base 20, which is the lowest component of the mechanism 2 and the seat carrier set thereon 22 takes up.
  • a plate-shaped front lever 21, into which a locking element 218 projects, is hinged on the one hand to the front area of the base 20 and, on the other hand, underlies the front area of the seat support 22.
  • the seat support 22 projects a first lever 31 for adjusting the preload of the mechanism 2, while after the other side, a second lever 32 for adjusting the seat depth of the seat 4 and a third lever 30 for actuating thenaturengasfeder 12 depart.
  • the seat 4 consists essentially of a lower pad plate 40 and the pad 46 disposed thereon.
  • a spar 6 hinged which extends angled upwards and each carrying a backrest support 71 to which a Armrest 7 is attached to the upper pad 70. Between the spars 6, the backrest 5 is added.
  • the top of the seat 4 is in the quasi-horizontal seat tilt So and the backrest 5 has the associated almost vertical backrest inclination RQ.
  • the relaxation position according to FIG 1C the upper side of the seat 4 has moved into the maximum seat inclination S max , and the backrest 5 has assumed the maximum backrest inclination R m ax in synchronism therewith.
  • the inclination of the seat 4 is thus variable over the seat angle ⁇ while the inclination of the backrest 5 varies over the backrest angle ⁇ .
  • FIGS. 2A and 2B are identical to FIGS. 2A and 2B.
  • the mechanism 2 consists essentially of the following components: - a base 20 with the two first Achsstäben A1, the bounce 209 and the two caps 2033;
  • the base 20 initially has a bottom 200, a first side wall 201 adjoining thereto, an opposite second side wall 202, a front wall 203 and the rear centrally positioned cone receptacle 204, which is revolved in a U-shape by the middle wall 205.
  • a bearing 207 Between each bearing bar 206 and the adjacent thereto side wall 201,202 is a bearing 207, which is formed from the bottom 200 rising, hollowed-out ribs, which end well below the holes 2060.
  • the mutually aligned holes 2012,2080,2050 form with the eye 2081 each have a receptacle for the two first Achsstäbe A1 on the first axis of rotation D1.
  • a block-shaped support 2082 is positioned between the cone seat 204 and the second side wall 202.
  • the two side walls 201, 202 each terminate in a spring 2031 between which the front wall 203 lies.
  • a cap 2033 is provided in each case.
  • the plate-shaped front lever 21 consists essentially first of the bottom 210, the angles thereto attaching sidewalls 211, which have a triangular cut in principle, and on the underside of the bottom 210 mutually parallel two longitudinal webs 212.
  • On the one hand go the longitudinal webs 212 in each case in a first eye 214 and on the other hand in each case in a second eye 216 via.
  • Between the two first eyes 214 extends an outwardly curved, shell-shaped axle web 213, wherein each eye 214 has a hole 215 and passes through two mutually aligned holes 215, the third axis of rotation D3.
  • Each second eye 216 has a hole 217, both holes 217 are aligned with each other and the fourth axis of rotation D4 extends therethrough. From the region of the second eyes 216, the height of the side walls 211 increases in the direction of the first eyes 214. The bottom 210 has between the two second eyes 216 has a recess 2100, in which the locking member 218 comes to rest.
  • FIGS. 5A and 5B are identical to FIGS. 5A and 5B.
  • the seat support 22 with the bottom 220, the two downwardly extending side walls 221, 222 and the side walls 221, 222 connecting on one side of the rear wall 223 forms the base 20 is a kind of cover.
  • the side walls 221,222 set perpendicular to the bottom of the bottom 220, offset from the outer edges inwardly to.
  • Parallel to the rear wall 223 rises from the bottom of the bottom 220 a stop bar 226 lesser height and further 220 reinforcing ribs 225 are provided between the side walls 221,222 and the underside of the bottom.
  • a multiplicity of first screw holes 229 extend through the bottom 220, and a counter contour 2299 rises above the rear wall 223 on the upper side.
  • the first side wall 221 has a passage 224.
  • FIGS. 6A to 6D are identical to FIGS. 6A to 6D
  • the transmission 25 consists of a first housing part 250, a second housing part 251, a drive element 252, a spindle screw 253, an eighth axis rod A8 with the internal thread 254 and two second sockets 255 and two third sockets 256.
  • the housing part 250 extends horizontally first axle hole 2502 and the second axle hole 2503, which are in alignment with the ninth axis of rotation D9 and the second axis of rotation D2.
  • a cylindrical projection 2500 extends horizontally outwards, which has a central passage 2501. There are screw holes 2507 on the inside.
  • the second housing part 251 has through bolt holes 2517 and a first, located on the axis of rotation D9 axle hole 2512 and a second, lying on the rotation axis D2 axle hole 2513, which are congruent to the screw holes 2507 and the axle holes 2502,2503.
  • a collar 2514 rises from the inside and underneath is a hollowed-out guide 2515 and beneath it a slot 2516.
  • the screw holes 2507, 257 serve to connect both housing parts 250, 251.
  • the first bevel gear 2524 of the drive element 252 lies in the bearing recess 2504 and its shaft 2520 protrudes into the cylinder projection 2500, so that the internal polyhedron 2521 in the shaft 2520 is accessible via the passage 2501.
  • the collar 2514 holds the drive element 252 in position and the second bevel gear 2534 of the spindle screw 253 engages the first bevel gear 2524, wherein the spindle screw 253 is located in the guide 2515 and engages with its external thread 2535 in the internal thread 254 of the Achsstabes A8.
  • the axle rod A9 penetrates the axle holes 2502, 2512 and projects out of the housing parts 250, 251, respectively.
  • the third sockets 256 are each externally inserted into the second axle holes 2503,2513 plugged.
  • the gas spring 26 to be guided on the gear 25 in the eighth axis of rotation D8 has at one end a U-shaped clamp part 261, in whose through holes the axle rod A8 is inserted, which is thickened in the middle and has a threaded pin 2540 on the outside.
  • a second bushing 255 is screwed, so that the clamp part 261 is clamped, wherein in each case a socket head 2550 in the slot 2516 or in the complementary slot of the first housing part 250 comes to rest.
  • To the clamp member 261 sets the elongated cylinder 260 of the gas spring 26, from which the piston rod 262 exits, which is attached thereto by means of a connector 263 which belongs to the intermediate piece 27.
  • the intermediate piece 27 initially has a horizontal bolt 274, on each of which a blind hole 270 is present on both sides. In the extension direction of the two blind holes 270, the fourth axis of rotation D4 runs. Center of the bolt 274 extends a fork segment 271 downwards, which has at the free ends of the two wings parallel to each other two holes, which serve to receive the first and second axle pins 272.273. With the second axle pin 273, a rocker 219 is tiltably fixed between the two wings of the fork segment 271, within a recess. The rocker 219 protrudes into a centrally positioned recess on the bolt 274 and ends in alignment with the piston rod 262.
  • the locking element 218 is tiltably mounted.
  • the rocker 219 is provided with an adjusting screw 2190 which is directed towards the end of the piston rod 262 of the gas spring 26 and presses thereon on the valve rod guided in the piston rod 262, which is spring-biased.
  • a spring unit 28 consists of a first spring guide 280, a second spring guide 285 and the coil spring 289 received therebetween.
  • the second spring guide 285 has a second bearing head 286, to which the second Shank 287 attaches, which has an axial hole 288.
  • the pin 283 is axially movable in the hole 288 and the ends of the coil spring 289 sit on the shafts 282,287.
  • the leading edges of the shafts 282,287 abut each other and thus limit the further spring travel.
  • the outer ends of the bearing heads 281, 286 are rounded, the eleventh axis of rotation D11 extending through the first bearing head 281 and the tenth axis of rotation D10 extending through the second bearing head 286.
  • a third eye 294 Before the second eye 297 is located at the bottom of the bottom 290, a third eye 294 the hole 295 through which the rotation axis D9 passes. On both sides of the third eye 294 reinforcing ribs 2900 extend to the side wall 291. In the side wall 291 of the right bearing bar 29 is near the second eye 297, a passage 2910. Near the two outer eyes 292,297 a screw hole 299 in the bottom 290 is present, while the middle eye 294 has a screw hole 299 on both sides. Another screw hole 299 opens on the top of the bottom 290 and extends into the bearing block 293 inside.
  • the back support 23 of the first variant is, in principle, a U-shaped sheet-metal part with the bottom 230 and on both sides outside, mutually parallel Abkantun- gene, the side walls 231 form.
  • the side walls 231 each extend two mutually aligned front axle holes 232 and rear axle holes 235.
  • the back support 23 'of the second variant is an angle piece with the bottom 230' and on both sides with external, mutually parallel folds which form sidewalls 231 '.
  • first leg 237' In the region of the first leg 237 'extending through the two side walls 231' in each case two mutually aligned front axle holes 232 'and rear axle holes 235'.
  • first sockets 236 are in turn set with their flange side from the outside to the front axle holes 232 ', wherein the Buchsen2020fte are intended for insertion into the eyes 2981 and receiving the Achsstäbe A1, which come to rest on the axis of rotation D1.
  • the rear axle holes 235 ' also serve to receive the axle rod A5 harboring the rotary axis D5.
  • the back lever 24 of the first variant consists of the axle rod A6, through which the rotation axis D6 extends, and the sleeve piece 240 arranged parallel thereto, wherein the axle rod A6 and the sleeve piece 240 are connected by two mutually parallel, upwardly bent arms 242.
  • a passage 241 and the axis of rotation D5 extends.
  • the flange sides limit the insertion depth of the sockets 246.
  • the back lever 24 'of the second variant consists of the axle rod A6, through which the rotation axis D6 extends, and the axle rod A7 arranged parallel thereto, wherein the axle rods A6.A7 are connected by two mutually parallel, upwardly bent arms 242'.
  • the ends of the axle rods A6, A7 project beyond the arms 242 1 on both sides, the axle rod A7 terminating on both sides as a tapered pin 241 ".
  • the paired spars 6 are divided into a first branch 60 and a second branch 63 bent upward thereof, which has a connection contour 630 for fastening the backrest 5.
  • a horizontally introduced blind hole 610 is present, the extension of which lies on the axis of rotation D1.
  • Approximately in the middle of the first branch 60 is an inwardly facing pin 62 with the existing blind hole 620 from whose extension lies on the axis of rotation D7.
  • This rectangular pad plate 40 is used when not desired seat depth adjustment. At the top of the two longitudinal outer edges each have a deeper gradation 43 is present. On each gradation 43 two threaded cones 44 with internal thread and adjacent holes 48 are present.
  • FIGS 11 B and 11 C This also rectangular pad plate 40 'is used in the desired seat depth adjustment.
  • long holes 41 ' are positioned, which have a keyhole-shaped contour on the bottom.
  • Adjacent to the oblong holes 41 "opens on the underside a screw hole 42 '.
  • the cushion plate 40 On the rear narrow side, the cushion plate 40 "has a securing contour 45" for cooperation with the counter contour 2299 on the upper side of the seat carrier 22.
  • FIGS. 13A to 13H This sequence of figures illustrates the successive assembly of the mechanism 2 and the interaction of the components thereof in combination with the back support 23 of the first variant.
  • the front lever 21 is positioned with the axle web 213 and the two first eyes 214 between the two front eyes 2031 on the base, so that the holes 2032, 215 are aligned with each other and the axle rod A3 can be inserted, whereby the rotation axis D3 comes into operation and the front lever 21 can pivot.
  • first bushings 236 are positioned between the front eyes 2031 and the first eyes 214 and slid onto the axle rod A3. To cover the inserted axle rod A3, the caps 2033 are pressed into the holes 2032.
  • the back support 23 with the front axle holes 232 advanced so far inserted that these axle holes 232 are aligned with the holes 2012,2050,2080 and can be inserted from both sides of the Achsstäbe A1 to form the axis of rotation D1.
  • the first bushes 236 are positioned between the side walls 231 and the inner walls 208 and slid onto the axle rods A1.
  • the back support 23 can now be pivoted about the axis of rotation D1.
  • the rod 300 of the third lever 30 for actuating thecanngasfeder 12 is fixed by means of a hold-down 301, wherein the rod 300 projects through the passage 2021 to the outside.
  • a bounce part 209 is inserted between the bearing webs 206 and in front of the cone seat 204. In the rest position bounces the stopper 233 against the center wall 205 and thus prevents the forward inclination of seat 4 and backrest. 5
  • the previously assembled transmission 25 with the gas spring 26 mounted and the intermediate piece 27 are positioned between the bearing webs 206 so that the second axle holes 2503, 2513 are aligned with the holes 2060 to insert the axle rod A2.
  • the transmission 25 is movable about the rotation axis D2.
  • the attached to the gas spring 26 spacer 27 is located between the second eyes 216.
  • To reduce friction bushes 236 between the second eyes 216 and the pin 274 of the intermediate piece 27 are inserted.
  • the attachment of the intermediate piece 27 between the second eyes 216 is explained in Figure 13E.
  • the back lever 24 To insert the back lever 24 in the back support 23 of the passage 241 are brought into alignment with the rear axle holes 235, so that the axle rod A5 can be inserted. To reduce friction between see the sleeve piece 240 and the side walls 231 jacks 246 used. Thus, the back lever 24 can pivot about the rotation axis D5, while the axle rod A6 of the back lever 24 will form the rotation axis D6.
  • first bearing heads 281 of the two spring units 28 are positioned in the bearing recesses 2930 on the underside of the bearing strip 29 and thereby yield the axis of rotation D11.
  • the bearing strips 29 are made of plastic, while the components connected thereto are metallic, so that virtually self-lubricating bearing points are formed.
  • the seat support 22 is mounted, wherein the Versch rob take from above through the lying in the inner region in the bottom 220 first screw holes 229, the distribution is congruent with the screw holes located in the bearing strips 29 299.
  • the rod 310 (see Figure 2A) was pushed into the passage 2501 and further into the internal polygon 2521.
  • the drive member 252 in rotation, which entrains the spindle screw 253 and thereby the Achsstab A8 upwards or downwards move and ultimately to adjust the leverage ratios in the mechanism 2.
  • the chair is set to lighter persons, while the maximum high-rotation axis D8 is the setting for heavier persons.
  • the paired on each side of the seat support 22 third screw holes 2292 are reserved for the optional attachment of armrests 7.
  • the pairwise existing second screw holes 228 are used for screwing from below with the non-adjustable pad plate 40.
  • the use of the back carrier 23 "second variant is shown, which is also installed in combination with the back lever 24 first variant.
  • the linkage on the axes of rotation D1, D5 is identical in principle, but from the back support 23 'the upwardly projecting second Leg 238 "is used to attach the backrest 5, while the back support 23 first variant, the connection to the backrest 5 is done with the straight expiring end.
  • An alternative attachment of the backrest 5 provides the use of the spars 6 in conjunction with a back lever 24 'second variant.
  • the outer ends of the axle rod A6 are also received in the holes 298 of the second eyes 297 in the bearing strips 29 and form there the axis of rotation D6.
  • the outer pin 241 'of the Achsstabes A7 stuck with insertion of sockets 246 in the blind holes 620 of the pins 62 on the spars 6 and form the axis of rotation D7.
  • the heads 61 with their blind holes 610 of the Holms 6 are articulated on the rotational axis D1 on the outer sides of the two side walls 201, 202 of the base 20.
  • FIGS. 16A to 16D The base 20 is fixed in any position except for height adjustment and free rotation on the undercarriage 1.
  • the seat support 22 In the rest position, the seat support 22 is in a horizontal position and the backrest 5 approximately in a vertical orientation.
  • the axis of rotation D4 is upstream of the fixed axis of rotation D3 and the front lever 21 assumes a minimum inclination relative to the horizontal.
  • the axis of rotation D11 is upstream of the axis of rotation D10 and the spring units 28 assume a minimum inclination relative to the horizontal.
  • the axis of rotation D9, the fixed axis of rotation D2 and the axis of rotation D8 are in principle perpendicular to each other.
  • the axis of rotation D6 is at the maximum height level above the fixed axis of rotation D1 with the slightest vertical offset to the axis of rotation D5 currently at the maximum height level.
  • the piston rod 262 of the gas spring 26 is maximally extended and the lever arm between the axes of rotation D2, D8 also maximum, so that a lower force to the rear by sitting on the chair person to move to the relaxation position is sufficient.
  • FIGS. 17A to 17D are identical to FIGS. 17A to 17D.
  • the seat support 22 rises in front, lowers at the back and moves towards the backrest 5, thus assuming a synchronous inclined position to the reclined backrest 5.
  • the axis of rotation D4 is less upstream of the fixed axis of rotation D3 and the front lever 21 takes against the Horizontal a maximum inclination.
  • the axis of rotation D11 is slightly upstream of the axis of rotation D10 and the spring units 28 take a maximum inclination relative to the horizontal.
  • the axis of rotation D9 has moved behind the invariable axis of rotation D2, while the axis of rotation D8 is now upstream of the axis of rotation D2.
  • the axis of rotation D6 is located at a minimum height level above the invariable axis of rotation D1 with the greatest vertical offset to the momentarily at the lowest height level axis of rotation D5.
  • the spring units 28 are maximally compressed and the piston rod 262 of the gas spring 26 is retracted at maximum, so that at defined load reduction, the backrest 5 and the seat support 22 with the seat 4 are automatically pushed back into the rest position.
  • This axis scheme superimposed between the rest and relaxation position illustrates the invariable axes of rotation D1, D2, D3, which are still drawn in solid black, and the positions of the variable essential axes of rotation D4, D5, D6, D8, D9 which move around them. Not shown here are lying in the spring units 28 axis D11, which also changed. However, hardly changes the lower axis D10, which passes through the spring 28 units. When using a pair of spars 6, the position of the rotation axis D7 changes.

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)

Abstract

L'invention concerne un mécanisme conçu pour une chaise, notamment une chaise de bureau rotative comportant un ressort à gaz placé verticalement dans son bâti inférieur, et une tige de piston déployable télescopique pour ajuster la hauteur d'un siège, qui synchronise le réglage de l'inclinaison du dossier avec le réglage de l'inclinaison du siège. Le mécanisme présente une base (20) fixe, à travers laquelle s'étend un premier axe de rotation fixe (D1) et sur laquelle est monté un support de siège inclinable. Entre la base (20) et le support de siège est disposé un moyen de connexion (21) du côté avant, qui est articulé autour d'un troisième axe de rotation fixe (D3) à la base (20) et autour d'un quatrième axe de rotation mobile (D4). En outre, ce mécanisme présente un moyen de connexion (24) du côté arrière, qui est articulé d'une part autour d'un sixième axe de rotation mobile (D6) et d'autre part autour d'un axe de rotation mobile supplémentaire (D5). Le mécanisme contient au moins un premier élément ressort (26) agissant entre la base (20) et le support de siège, qui est articulé autour du quatrième axe de rotation (D4). Ce premier élément ressort (26) est d'autre part articulé autour d'un huitième axe de rotation mobile (D8), dont la position peut être modifiée au moyen d'une transmission (25) extérieure, actionnable par l'utilisateur. Le premier élément ressort (26) est avantageusement un ressort à gaz, qui peut être bloqué au moyen d'un élément de blocage (218) actionnable par l'utilisateur, avec lequel le siège et le dossier sont bloqués dans la position de repos.
EP07720098A 2006-04-27 2007-04-27 Mecanisme pour une chaise Withdrawn EP2010027A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH7002006 2006-04-27
PCT/CH2007/000201 WO2007124609A2 (fr) 2006-04-27 2007-04-27 Mecanisme pour une chaise

Publications (1)

Publication Number Publication Date
EP2010027A2 true EP2010027A2 (fr) 2009-01-07

Family

ID=38655857

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Application Number Title Priority Date Filing Date
EP07720098A Withdrawn EP2010027A2 (fr) 2006-04-27 2007-04-27 Mecanisme pour une chaise

Country Status (5)

Country Link
US (1) US20090021065A1 (fr)
EP (1) EP2010027A2 (fr)
JP (1) JP2009534134A (fr)
CN (1) CN101384195A (fr)
WO (1) WO2007124609A2 (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009208948A (ja) * 2008-03-06 2009-09-17 Ntn Corp フレーム付きテークアップユニット
US7841664B2 (en) * 2008-06-04 2010-11-30 Steelcase Inc. Chair with control system
US20100244523A1 (en) * 2009-03-27 2010-09-30 Min-Chun Ho Office chair
CH701715A2 (de) 2009-08-26 2011-02-28 Vitra Patente Ag Mechanik für einen Stuhl.
CN102905579B (zh) * 2010-05-26 2016-06-08 鹰野株式会社 椅子的靠背用反力机构及安装有该机构的椅子
TW201141422A (en) * 2010-05-31 2011-12-01 Wen-Shan Ke Chair adjustment device
US9592914B2 (en) 2011-10-07 2017-03-14 Bombardier Inc. Aircraft seat
US9714095B2 (en) 2011-10-07 2017-07-25 Bombardier Inc. Aircraft seat
US9714862B2 (en) 2011-10-07 2017-07-25 Bombardier Inc. Aircraft seat
JP6009891B2 (ja) * 2011-11-04 2016-10-19 株式会社岡村製作所 椅子
US9458905B2 (en) * 2012-09-20 2016-10-04 Steelcase Inc. Spring assembly and method
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering
USD697726S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
CA2962585C (fr) 2014-09-25 2022-07-26 Bombardier Inc. Siege d'aeronef
US11259637B2 (en) 2015-04-13 2022-03-01 Steelcase Inc. Seating arrangement
US10194750B2 (en) 2015-04-13 2019-02-05 Steelcase Inc. Seating arrangement
USD852525S1 (en) 2017-05-25 2019-07-02 Steelcase Inc. Seating arrangement
USD829033S1 (en) 2017-05-25 2018-09-25 Steelcase Inc. Seating arrangement arm structure
USD851417S1 (en) 2017-05-25 2019-06-18 Steelcase Inc. Seating arrangement
USD852524S1 (en) 2017-05-25 2019-07-02 Steelcase Inc. Seating arrangement
USD851952S1 (en) 2017-05-25 2019-06-25 Steelcase Inc. Seating arrangement
USD852526S1 (en) 2017-05-25 2019-07-02 Steelcase Inc. Seating arrangement
USD846294S1 (en) 2017-05-25 2019-04-23 Steelcase Inc. Seating arrangement
USD851418S1 (en) 2017-05-25 2019-06-18 Steelcase Inc. Seating arrangement
CA3086225A1 (fr) 2017-12-21 2019-06-27 Bombardier Inc. Siege passager inclinable
EP3927215A4 (fr) 2019-02-21 2023-03-15 Steelcase Inc. Ensemble support corporel et procédés d'utilisation et d'assemblage de cet ensemble
USD907383S1 (en) 2019-05-31 2021-01-12 Steelcase Inc. Chair with upholstered back
USD907935S1 (en) 2019-05-31 2021-01-19 Steelcase Inc. Chair
US11357329B2 (en) 2019-12-13 2022-06-14 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
JP1716410S (ja) * 2020-07-22 2022-06-01 椅子
CA3178812A1 (fr) 2021-10-08 2023-04-08 Bombardier Inc. Siege inclinable a configurations multiples

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19823632C1 (de) * 1998-05-27 1999-09-30 Roeder Peter Stuhl, insbesondere Bürostuhl
JP3874392B2 (ja) * 1998-07-09 2007-01-31 株式会社岡村製作所 椅子
DE10219478B4 (de) * 2002-04-30 2006-07-13 Klöber GmbH Stuhl mit vom Benutzergewicht abhängigen Kraftspeicher
DE10241562A1 (de) * 2002-09-07 2004-03-18 Bock-1 Gmbh & Co. Synchronmechanik für Bürostühle
DE10309921A1 (de) * 2003-03-07 2004-09-16 Dauphin Entwicklungs- Und Beteiligungs-Gmbh Stuhl, insbesondere Bürostuhl
DE20306014U1 (de) * 2003-04-14 2003-06-26 Vitra Patente Ag, Muttenz Mechanik für einen Stuhl mit einer Gasfeder zur synchronen Steuerung der Neigung von Sitz und Rückenlehne
US7322653B2 (en) * 2003-06-13 2008-01-29 Vlad Dragusin Integrated videogaming and computer workstation
US7147285B2 (en) * 2004-01-20 2006-12-12 Tung Yu Oa Co., Ltd. Reclining apparatus for chair

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007124609A2 *

Also Published As

Publication number Publication date
US20090021065A1 (en) 2009-01-22
JP2009534134A (ja) 2009-09-24
WO2007124609A3 (fr) 2008-03-20
CN101384195A (zh) 2009-03-11
WO2007124609A2 (fr) 2007-11-08

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