EP0582818A1 - Chaise, notamment chaise de bureau - Google Patents

Chaise, notamment chaise de bureau Download PDF

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Publication number
EP0582818A1
EP0582818A1 EP93110163A EP93110163A EP0582818A1 EP 0582818 A1 EP0582818 A1 EP 0582818A1 EP 93110163 A EP93110163 A EP 93110163A EP 93110163 A EP93110163 A EP 93110163A EP 0582818 A1 EP0582818 A1 EP 0582818A1
Authority
EP
European Patent Office
Prior art keywords
axle body
support frame
holding device
frame according
support
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
EP93110163A
Other languages
German (de)
English (en)
Other versions
EP0582818B1 (fr
Inventor
Hermann Locher
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.)
Giroflex Entwicklungs AG
Original Assignee
Giroflex Entwicklungs 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 Giroflex Entwicklungs AG filed Critical Giroflex Entwicklungs AG
Publication of EP0582818A1 publication Critical patent/EP0582818A1/fr
Application granted granted Critical
Publication of EP0582818B1 publication Critical patent/EP0582818B1/fr
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
    • 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
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • 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
    • 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
    • A47C1/03272—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
    • A47C1/03274—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 of torsion type
    • 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
    • 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
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers

Definitions

  • the invention relates to a support frame for a chair, in particular for an office chair adjustable in height and inclination, consisting of a stand, a support and pivoting device arranged thereon, a seat support and a backrest support, the seat support and the backrest support using the knee side and backrest side struts arranged on an axle body are mounted on the carrying and swiveling device and can be pivoted backwards against the restoring force of at least one first spring element about the horizontal axis of the carrying and swiveling device and can be locked and released in any position by a second spring element arranged parallel or transversely to the axis are.
  • EP-A 0 485 868 discloses an office chair which is adjustable in height and inclination and which essentially comprises a support frame formed from a seat support, a backrest support, a first and a second guide linkage, which is arranged on a support body arranged and fastened to a support column stored and together with the seat and backrest support can be tilted backwards against the restoring force of a torsion and torsion bar and can be locked in any position by a lockable and releasable gas pressure spring.
  • the invention is based on the object of designing and improving a chair of the generic type in such a way that, while maintaining the ergonomic requirements dependent on the user, no transverse forces are transmitted to the spring element compensating the backward and forwardly oriented pivoting movement and, moreover, a flawless, synchronous movement sequence is ensured becomes.
  • the chair according to the invention is characterized by a holding device which is arranged at the upper end of the pedestal and penetrated by the axle body, and has two coil springs which are arranged on both sides in the longitudinal direction of the axis and are arranged between the lateral struts and the holding device and are mounted on the axle body and which are used to adjust the spring restoring force are held with one spring end piece on a tensioning element mounted on the holding device and with the other end on a bearing element operatively connected to the backrest support.
  • the support frame 100 essentially comprises a support and pivoting device 80 for a seat support 1 and a backrest support 2 operatively connected to it via a first articulation point 3, 3 '.
  • the backrest support 2 is supported on the support and pivoting device 80 via a bearing device 30, 30' and mounted pivotably about a horizontal axis X of the carrying and pivoting device.
  • the supporting and swiveling device 80 which is operatively connected to two spring elements 40, 40 'arranged transversely to the seat direction, is fastened to a standing column 5, which is shown schematically and only partially, with a correspondingly designed holding device 10.
  • a spring element which is provided for the height adjustment of the support frame 100 oriented in the direction of the arrows Z and Z 'and which is preferably designed as a gas pressure spring (not shown), is arranged in the partially illustrated standing column 5.
  • a base frame known per se designed as a 5-star lower part, can be arranged.
  • the foot frame is preferably provided with wheels for the mobility of the office chair.
  • the holding device 10 and a tensioning element 20 are arranged in the upper area of the pedestal 5, as shown in FIG. 1, the holding device 10 and a tensioning element 20 are arranged.
  • the restoring force of both spring elements 40, 40 ' can be adjusted with the tensioning element 20.
  • the clamping element 20 is mounted on a pin 15 of the holding device 10 so as to be pivotable about an axis X ′ of the pin 15 and is adjustable relative to the holding device 10 by means of a threaded spindle 24.
  • the axis X ' is parallel to the axis X of the Carrying and pivoting device 80 arranged.
  • the threaded spindle 24, which can be actuated with a handle 25, is supported in a manner not shown on a stop piece 19 of the holding device 10.
  • the holding device 10 and the tensioning element 20 will be described in detail later in connection with FIGS. 5 to 8.
  • the holding device 10 arranged on the pedestal 5 is designed to receive and support the carrying and pivoting device 80 oriented transversely to the seat direction.
  • the backrest support 2 and the seat support 1 articulated thereon are supported on the carrying and pivoting device 80, for example in the area on the backrest side, via the first bearing devices 30 and 30 '.
  • the bearing device 30 comprises a first bracket 33 which is fastened to the backrest support 2 by means not shown, and a second bracket 34 which is connected to it in an articulated manner and fastened to the seat bracket 1 by means not shown.
  • the one bearing device 30 is via a lever arranged and fastened to the first bracket 33 32 is supported on a bushing 31 (FIG. 2) mounted on the carrying and pivoting device 80.
  • the other bearing device 30 ' (FIG. 2) is designed analogously and comprises the parts 31', 32 ', 33' and 34 '.
  • the seat support 1 is fastened to second bearing devices 75, 75 '.
  • the bearing devices 75, 75 ' essentially each form a second articulation point 4, 4' and are supported on the carrying and pivoting device 80 by means of articulated struts 46 and 46 '.
  • the carrying and swiveling device 80 has the horizontal axis X which is oriented transversely to the seat direction, about which the individual elements operatively connected thereto can be swiveled against the restoring force of the spring elements 40, 40 'for a corresponding movement of the seat support 1 and the backrest support 2.
  • the restoring force of the two spring elements designed as a helical spring is 40.40 'adjustable by means of the clamping element 20.
  • one of the spring elements 40 visible here is arranged with one end 41 in a holding device 35 and with the other end 42 on a shoe-shaped holding piece 23 of the clamping element 20.
  • the holding device 35 is mounted on the one hand on the carrying and pivoting device 80 with a toggle lever 36 and on the other hand is operatively connected to the lever 32 of the bearing device 30.
  • the arrangement and attachment of the other spring element 40 'to the tensioning element 20 and the associated second holding device 35' are designed analogously.
  • FIG. 2 shows the support frame 100 of the first exemplary embodiment (without seat and backrest support 1, 2) with the support and pivoting device 80 in a top view, and the holding device 10 with the tensioning element 20, which is arranged on the schematically illustrated stand column 5, can be seen.
  • An axle body 45 which essentially forms the horizontal axis X, is arranged and mounted in the holding device 10, the axle body 45 preferably being divided into two axle body sections 45 'and 45' '.
  • the strut 46, 46 ' is arranged and fastened to the outer ends of the axle bodies 45', 45 ''.
  • the holding device 10 and the two axle bodies 45 ', 45' 'and the two struts 46, 46' are non-rotatably in a manner not shown, e.g. positively connected with each other and together form a structural unit.
  • the two coil springs 40, 40' are arranged, each penetrated by the associated axle bodies 45 ', 45''and mounted on spaced-apart bushes 43, 44 and 27, 28.
  • the bushings 43, 44 and 27, 28 mounted on the two axle bodies 45 ', 45'' are each provided with a flange collar 43', 44 'which is integrally formed on the two side walls of the holding device 10 and on the struts 46, 46'. and 27 ', 28'.
  • the bushings 27, 28 and 43, 44 which are arranged on the axle bodies 45 ', 45' 'for mounting the coil springs 40, 40' are preferably made of a suitable plastic with good sliding properties, for example of PTFE.
  • FIG. 2 shows the bearing devices 30 and which are arranged in the region of the struts 46 and 46 ', are provided for the seat and backrest supports 1 and 2 and are formed from the parts 32, 33, 34 and 32', 33 ', 34' 30 ', which are mounted on the bushings 44 and 28 by means of appropriately designed bearing bodies 31 and 31'.
  • a correspondingly designed tab 47, 47 ' is arranged and fastened to each strut 46, 46' at a distance from the axis X.
  • the first and second lever systems 50, 50 ' which are operatively connected to the blocking device 65, are mounted on the tabs 47, 47'.
  • the lever system 50 comprises a first pair of toggle levers 51, 52, which is mounted with a first bolt 48 on the bracket 47 fastened to the strut 46.
  • a second pair of toggle levers 53, 54 is arranged on the first pair of toggle levers 51, 52 on a second bolt 49.
  • the second pair of toggle levers 53, 54 is via a third bolt 56 on a bracket 57 one on the front End of the strut 46 arranged slider 60 mounted. As shown in FIG.
  • the slider 60 is arranged in an elongated hole 63 of the strut 46 and is displaceably guided in the strut 46 in the longitudinal direction denoted by the double arrow Y, Y '.
  • the slider 60 is held on the strut 46 with two correspondingly designed guide pieces 61, 62 held together by screw connections, not shown.
  • FIG 1 shows the lever system 50 described above with the individual parts 48, 49, 51, 52, 55 and 56 partially in view.
  • the first pair of toggle levers 51, 52 of the first lever system 50 is also, as shown in FIG. 2, operatively connected to one end of a spring element designed as a gas pressure spring 64.
  • the gas pressure spring 64 has a piston rod 66 and a fastening tab 67 arranged thereon at the front end, with which the gas pressure spring 64 is operatively connected to the first pair of toggle levers 51, 52 via a fourth bolt 55.
  • the gas pressure spring 64 is operatively connected to the bolt 55 'of the opposite pair of toggle levers 51', 52 'of the second lever system 50' by means of an actuation device, designated 70 in its entirety.
  • the second lever system 50 ' arranged corresponding to the first lever system 50 and having the parts 47'; 48 '; 49'; 51 '; 52'; 53 '; 54'; 55 'and 56' is designed analogously to the first lever system 50.
  • One pair of toggle levers 51 '; 52' is operatively connected to the actuating device 70 via a bolt 55 '.
  • the other pair of toggle levers 53 '; 54' is connected to the bracket 57 'of the slider 60' by a bolt 56 '.
  • the two lever systems 50; 50 ' which are operatively connected to the gas pressure spring 64 and the lever systems 50; 50' which are operatively connected thereto and arranged on the struts 46; 46 'so as to be displaceable in the direction of the arrow Y; Y' Sliders 60; 60 'and bearing journals 58; 58' arranged thereon are mirror images and analogous to one another.
  • the two journals 58; 58 ' essentially form the second articulation point 4,4'.
  • a bracket 76.76' designed to fasten the seat support 1 is further arranged, a profiled body connector 77 (partially shown) being arranged between the two bearing blocks 76.76 'and on the bearing blocks 76,76 'is attached in a manner not shown.
  • the actuating device 70 for the blocking device 65 shown in FIG. 2 comprises a tubular intermediate piece 72 which is arranged at one end on the gas pressure spring 64 and at the other end on a connecting piece 69.
  • the connecting piece 69 is operatively connected to the associated second lever system 50 'via the bolt 55'.
  • a tab 71 and a lever 74 penetrating the tubular intermediate piece 72 in the radial direction are arranged on the intermediate piece 72.
  • the lever 74 can be pivoted relative to the bracket 71 on a bearing piece 73 arranged on the intermediate piece 72 in the direction of arrow 74 '.
  • the plunger 68 of the gas pressure spring 64 is actuated by the lever 74 which can be pivoted by actuating elements (handle and Bowden cable) which are not shown in order to release or block the gas pressure spring 64.
  • FIG. 3 shows the support frame 100 with the support and pivoting device 80 of the first exemplary embodiment, which is shown in a sectional view in accordance with the line III-III shown in FIG. 2, and the seat support 1 can be seen, the backrest support 2 operatively connected thereto via the articulation point 3 ', the bearing device 30 'and the holding device 35' for the helical spring 40 'operatively connected thereto.
  • the bearing device 30 ' comprises the two fastening tabs 33 ', 34' and the lever 32 'which is arranged and fastened on the tab 33' and on the bearing body 31 '.
  • the holding device 35 ' has a toggle lever 36', on which a tube piece 8 'is arranged on one lever part 38' and a bearing piece 39 'is arranged on the other lever part 37'.
  • the toggle lever 36 ' is mounted on the bearing body 31' so as to be pivotable about the horizontal axis X by means of the integrally formed bearing piece 39 '.
  • One lever part 38 'of the toggle lever 36' is provided with an elongated hole 29 'and in the upper region with the pipe section 8' into which one end 41 'of the coil spring 40' is inserted.
  • the toggle lever 36 ' is operatively connected to the lever 32' of the bearing device 30 'by means of a screw connection 7' penetrating the slot 29 '.
  • FIG. 3 also shows a lever system 50 'in view, and one can see the tab 47' arranged on the strut 46 ', the first pair of toggle levers which are arranged at a distance from one another by bush-shaped intermediate pieces 78, 78' and are mounted on the bolt 48 ' 51 ', 52'. At a distance from this, the second pair of toggle levers 53 ', 54' mounted on the pin 49 'is arranged between the first pair of toggle levers 51', 52 '. Furthermore, one can see the connection piece 69 of the blocking device (FIG.
  • FIG. 4 shows a top view and along the line IV-IV in FIG. 3, the holding device 35 ', shown partly in section, which is operatively connected to the lever 32' of the bearing device 30 'by means of the fastening screw 7'. Furthermore, one can see the arranged on the one axle body 45 ′′ and with the collar 28 'on the strut 46' bearing bush 28 and the bearing body 31 'with the attached lever 32'. At a distance from the lever 32 ', the toggle lever 36' mounted with the part 39 'on the part 31' is arranged, the tube piece 8 'designed to receive the end piece 41' of the helical spring 40 '(FIG. 2) being fastened to the toggle lever 36' is.
  • the toggle lever 36 'provided with the elongated hole 29' is adjustable relative to the lever 32 'of the bearing device 30' and can be fixed in the required position by the fastening screw 7 '(fixation).
  • the holding device 10 and the tensioning element 20 mounted thereon for the support frame 100 are shown as a first exemplary embodiment and in FIG. 6 in a top view.
  • the holding device 10 comprises a holding piece 12 provided with a rear wall 11 and two side walls 11 ', 11''arranged thereon, two intermediate pieces 16 and 17 provided with bores 6 and 6' for receiving the pedestal 5 and a stop piece 19.
  • the two intermediate pieces 16 , 17, as shown in FIG. 6, are each divided into sections 16 ', 16''and17', 17 '' by a recess 9 and 9 'in the front area.
  • the rear wall 11, on which the side walls 11 'and 11'are formed, is preferably designed in the shape of a circular arc (FIG. 6).
  • an arc piece 14, 14' penetrated by the bearing pin 15 is formed in the lower region.
  • the axle bodies 45 ′, 45 ′′, which are preferably designed as hollow bodies, can For example, have a profile cross section designed as a polygonal tube, the profile cross section of which the openings 18, 18 'in the side walls 11 and 11' are adapted accordingly.
  • the clamping element 20 can be seen, which is mounted with two side parts 21 and 21 ', as shown in FIG. 6, on the two laterally protruding end pieces 15' and 15 '' of the bearing pin 15.
  • the essentially shoe-shaped holding piece 23, 23 'for the end pieces 42, 42' of the helical spring 40, 40 '(FIG. 2) is arranged and fastened on each side part 21, 21'.
  • a connecting web 26 for receiving the threaded spindle 24 (FIG. 1) is arranged and fastened between the two side parts 21, 21 '.
  • the holding device 10 is shown in a sectional view, and you can see the holding piece 12 with the rear wall 11 and the one side wall 11 ''.
  • the two intermediate pieces 16 and 17 are arranged on the rear wall 11 in the front area, which are preferably integrally formed on the rear wall 11.
  • the intermediate pieces 16, 17 separated by the gap 9, 9 ' are designed in accordance with the shape of the axle bodies 45 and 45' inserted into the openings 18, 18 '.
  • the corresponding end pieces 16 ', 17' and 16 '', 17 '' which are arranged at a distance from one another and, in the assembled state, encompass the axle bodies 45 ', 45' 'are each, as shown in FIG.
  • the clamping device 20 is partially shown in a sectional view, and one can see the one with a recess 22 'for the bearing pin 15 provided side part 21', the connecting web 26 with a threaded bore 26 'for the threaded spindle 24 (Fig.1) and the holding piece 23' attached to the front part on the side part 21 'for the end piece 42' of the coil spring 40 ' (Fig.2).
  • the opposite side part 21 with the holding piece 23 is, as shown in FIG. 6, analogous to the side part 21 '.
  • the above-described support frame 100 ensures an exact transmission of the pivoting movement, which is also dependent on the body weight of the user, to the spring elements.
  • the restoring force of the two coil springs 40, 40 ' can be adjusted to the body weight of the user with relatively little effort.
  • the movements are transmitted in a straight line to the gas pressure spring 64 via the lever system 50, 50 ', as a result of which the seals in the gas pressure spring are loaded much less and more uniformly.
  • the support frame 200 comprises a support and swivel device 180, on which two backrest supports 102, 102 'arranged at a distance from one another in the axial direction of the support and swivel device 180 and two struts 146, 146' are mounted.
  • a support and swivel device 180 on which two backrest supports 102, 102 'arranged at a distance from one another in the axial direction of the support and swivel device 180 and two struts 146, 146' are mounted.
  • struts 146, 146 ′ At the knee-side end of the struts 146, 146 ′, correspondingly designed articulation points 4, 4 ′ are provided for mounting a seat carrier 101.
  • the seat support 101 provided with bearing blocks 177, 177 'is mounted on a connecting piece 103 which penetrates the bearing blocks 177, 177'.
  • the part 103 connecting the two backrest supports 102, 102 'with the two bearing blocks 177, 177' forms approximately the articulation points 3, 3 'on the backrest side.
  • the carrying and pivoting device which is operatively connected to two spring elements 140, 140 'arranged transversely to the seat direction 180 is arranged and fastened by means of a holding device 110, which is approximately in the form of a housing, to a schematically and only partially illustrated support column 105.
  • the restoring force of the two spring elements 140, 140 'held at one end in a bearing part 130, 130' can be adjusted via a tensioning element 120, which is supported on the holding device 110 and is operatively connected to a threaded spindle 124 and a handwheel 125.
  • the pedestal 105 is essentially analogous to the pedestal 5 described above in connection with FIG. 1 and is height-adjustable in the direction of the arrows Z and Z 'using a spring element (gas spring), not shown.
  • a spring element 164 designed as a gas pressure spring can be seen in FIG. 9, which is mounted in the knee-side area by means of a fastening tab 167 and a bearing bolt 174 on two bearing blocks 175, 175 '(FIG. 10) arranged at a distance from one another on the underside of the seat support 102.
  • the spring element 164 is mounted on the holding device 110.
  • the connecting piece 158 essentially forms the knee joint 4, 4 ', the bolt-shaped connecting piece 158 together with the two sliding pieces 160, 160' each in the struts 146, 146 ', which are approximately [-shaped in profile cross section and each provided with an elongated hole 163, 163'. is guided.
  • the sliding movement oriented in the direction of arrow Y or Y ′ takes place when the parts 101 and 102 are pivoted.
  • the support frame 200 of the second embodiment (without seat and backrest support 101, 102) with the The carrying and pivoting device 180 is shown in a top view, and the holding device 110 arranged on the schematically illustrated stand column 105 and the tensioning device 120 can be seen.
  • an axle body 145 essentially forming the horizontal axis X is arranged in the holding device 110.
  • the axle body 145 is divided, for example, into two sections 145 ′ and 145 ′′, which are operatively connected to one another in the area of the holding device 110 by a coupling or connecting piece 144.
  • the axle body 145 or the two sections 145 ′, 145 ′′ consist, for example, of a hollow profile body having a polygonal cross section (FIG. 11).
  • the strut 146 and 146 ' is arranged and fastened to the outer ends of the axle bodies 145', 145 ''.
  • the holding device 110 with the two axle bodies 145 'and 145''and the two struts 146 and 146' are rotatably connected to each other in a manner not shown and together form a structural unit.
  • the bushings 150, 155 and 150 ', 155' each have an integrally formed flange which bears against the two side walls of the holding device 110 and against the struts 146, 146 '.
  • the flanges designated 154.154' are each provided with a circular circumferential groove 153.153 '.
  • the clamping device 120 is mounted in the grooves 153, 153 'with two side parts 121, 121' about the axis X-X of the axle body sections 145 ', 145' '.
  • the bushings 150, 150 'and 155, 155' provided for mounting the coil springs 140, 140 'and the clamping device 120 are preferably made of suitable plastic with good sliding properties, for example made of PTFE.
  • FIG. 10 shows the bearing elements 130, 130 'arranged in the area of the two struts 146, 146', each with a first hub piece 131, 131 'for the associated spring end piece 141, 141' and a second hub piece 132, 132 'and a rear wall 133, 133' connecting the hub pieces together.
  • the individual bearing elements 130, 130 ' are fastened to the associated struts 146, 146' with a fastening member 148, 148 '(rivet or screw connection) penetrating the second hub pieces 132, 132'.
  • the individual backrest supports 102, 102' On the side facing the backrest supports 102, 102 'there is a recess (not shown in more detail) for the respective backrest support 102, 102' which is delimited by side walls 134, 134 ', the individual backrest supports 102, 102' using appropriately designed holding pieces 135, 135 'and means (not shown) (screw connection) on the Bearing elements 130, 130 'are attached and held.
  • FIG. 10 shows the connecting piece 103 arranged in the spaced apart and schematically illustrated bearing blocks 177, 177 ', with which the two backrest supports 102, 102' are connected to one another in the area on the backrest side.
  • the two struts 146, 146 ' are operatively connected to one another by the connecting piece 158 arranged in the bearing blocks 176, 176'.
  • the rod-shaped connecting piece 158 is displaceably guided by sliding pieces 160, 160 'arranged at the ends in the struts 146, 146' provided with corresponding recesses 163, 163 '.
  • the spring element 164 which is pivotally mounted with a bearing piece 168 in the holding device 110 about the axis X 'of a bolt 168' and which is released from an actuating device 170 (not shown in more detail) and can be blocked.
  • the spring element 164 and the actuating device 170 together form a so-called blocking device 165 which is known per se.
  • the piston rod 166 with the fastening tab 167 which is held with the bearing pin 174 on the two bearing blocks 175, 175 'which are arranged at a distance from one another is.
  • the holding device 110 has a housing 111 with a housing cover 115.
  • the parts 111 and 115 are connected to one another by corresponding fastening screws (not shown).
  • the standing column 105 is arranged in a bore of the housing 111, which is not designated, in such a way that the plunger 106 of the gas pressure spring 105 ', which extends into a recess 118 in the housing cover 115, is easily accessible for the assignment of an actuating device, not shown.
  • the housing 111 has a first head piece, designated as a whole by 114, which is formed with a recess 112 for mounting the axle body 145.
  • the housing cover 115 has a second head piece, designated as a whole by 116, which is formed with a recess 112 ′ for mounting the axle body 145.
  • the two recesses 112, 112 'arranged corresponding to one another in the head pieces 114 and 116 form a recess oriented in the longitudinal direction of the axle body 145 and adapted to the outer contour of the axle body 145, which in the assembled state of the parts 111 and 115 engages around the axle body 145 in a form-fitting manner.
  • the axle body formed from the two parts 145 ', 145'' is, for example, a hollow profile body with multiple edges in the profile cross section, preferably a hexagonal hollow profile body.
  • the connecting piece 144 by means of which the two axle body parts 145 ′ and 145 ′′ are connected to one another in a clutch-like manner, is preferably also designed as a polygonal hollow profile body.
  • a recess In the two head pieces 114, 116 there is a recess, generally designated 109, in the front area, which is delimited by side walls 113, 113 'and 117, 117'.
  • a bearing piece 168 which is operatively connected to the piston rod 166 of the gas pressure spring 164 is arranged in the recess 109 and is mounted in the side walls by means of a bolt 168 '.
  • FIG. 12 shows a section of the supporting frame in a sectional view along the line XII-XII in FIG. 10, and the strut 146 'arranged on the axle body 145' can be seen, which on its end piece 147 'is analogous to the axle body designed as a hexagonal hollow profile body in the profile cross section 145 'is adjusted.
  • the end piece 147 'of the strut 146' encompasses the axle body 145 in a form-fitting manner.
  • the bearing part 130 ' operatively connected to the rivet or screw connection 148' with the strut 146 'with the end piece 141' and the coil spring 140 '(FIG. 10) mounted thereon, as well as the one backrest support 102'.
  • the tensioning element 120 for the two coil springs 140 and 140 ' is shown in a perspective view, which essentially has a connecting web 126 with two tabs 127, 127' arranged on the side thereof and a threaded spindle 124 (FIG. 9) not shown here in FIG Engaged handwheel 125 includes.
  • the side parts 121, 121 ' are each provided with an arcuate recess 122, 122'.
  • the recesses 122, 122 ' correspond to the inner diameter of those provided in the bushes 155, 155' Grooves 153, 153 '(Fig. 10) adjusted.
  • an outwardly bent holding piece 123, 123 ' is formed, which holding pieces each serve as a counter-bearing for the end pieces 142 and 142' of the two coil springs 140, 140 '(Fig. 10).
  • axle body sections 145, 145 arranged in the holding device 110 which are positively operatively connected to the struts 146 and 146 'and are designed as a hexagon, are arranged such that the two mutually corresponding edges K, K', as shown in FIG .12 schematically shown, forms an axis NN for the inclined position of the backrest support 102, 102 '.
  • the gas pressure springs arranged in the support column 5 or 105, as well as gas pressure springs 64 or 164 arranged in the seat direction or transversely thereto, for releasing or fixing the individual elements, are connected to an actuating device (not shown) via Bowden tension members.
  • the Bowden tension members, not shown, are advantageously guided through the axle body 45 or 145 designed as a hollow profile body or through one or both axle body sections.
  • the support frame 200 described above also ensures an exact transmission of the swiveling movement, which is also dependent on the body weight of the user, to the spring elements.
  • the restoring force of the two coil springs 140, 140 ' can be adjusted to the body weight of the user with relatively little effort.
  • the movements of the seat and backrest support are transmitted in a straight line to the gas pressure spring 164, so that the seals in the gas pressure spring are loaded much less and more uniformly.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
EP93110163A 1992-07-16 1993-06-25 Chaise, notamment chaise de bureau Expired - Lifetime EP0582818B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH02251/92A CH690019A5 (de) 1992-07-16 1992-07-16 Traggestell für einen Stuhl, insbesondere für einen in der Höhe und Neigung verstellbaren Bürostuhl.
CH2251/92 1992-07-16

Publications (2)

Publication Number Publication Date
EP0582818A1 true EP0582818A1 (fr) 1994-02-16
EP0582818B1 EP0582818B1 (fr) 1998-04-29

Family

ID=4229405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93110163A Expired - Lifetime EP0582818B1 (fr) 1992-07-16 1993-06-25 Chaise, notamment chaise de bureau

Country Status (7)

Country Link
US (1) US5499861A (fr)
EP (1) EP0582818B1 (fr)
JP (1) JP3433299B2 (fr)
KR (1) KR100303247B1 (fr)
BR (1) BR9302874A (fr)
CH (1) CH690019A5 (fr)
DE (1) DE59308463D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1066775A1 (fr) * 1999-07-06 2001-01-10 Röder, Peter Chaise
DE10026531A1 (de) * 2000-05-27 2001-12-06 Roeder Peter Stuhl
CH696379A5 (de) 2002-10-15 2007-05-31 Stoll Giroflex Ag Sitzmöbel.
EP1825780A1 (fr) * 2006-02-24 2007-08-29 Ideassociates (IOM) Limited Un dispositif de charnière pour assembler deux objets de maniere articulée et à ressort
US8100477B2 (en) 2006-10-23 2012-01-24 Ideassociates (Iom) Ltd. Synchronizing device for an office chair

Families Citing this family (16)

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US5765914A (en) 1995-06-07 1998-06-16 Herman Miller, Inc. Chair with a tilt control mechanism
US5909923A (en) * 1997-10-24 1999-06-08 Steelcase Inc. Chair with novel pivot mounts and method of assembly
US6250715B1 (en) 1998-01-21 2001-06-26 Herman Miller, Inc. Chair
US6007150A (en) 1998-03-08 1999-12-28 Milsco Manufacturing Company Motorcycle seat with adjustable backrest
US6598936B1 (en) 2001-04-11 2003-07-29 Michael N. Klein Multi-task mid-pivot chair control mechanism
DE10200355A1 (de) * 2002-01-08 2003-07-17 Dauphin Friedrich W Gmbh Stuhl
DE10219478B4 (de) * 2002-04-30 2006-07-13 Klöber GmbH Stuhl mit vom Benutzergewicht abhängigen Kraftspeicher
US6880886B2 (en) * 2002-09-12 2005-04-19 Steelcase Development Corporation Combined tension and back stop function for seating unit
US6742843B2 (en) * 2002-10-25 2004-06-01 Knoll, Inc. Cable control with overload protection device
CN102772051B (zh) 2007-01-29 2016-05-18 赫尔曼米勒有限公司 座位结构及其使用方法
US8172324B2 (en) * 2008-06-06 2012-05-08 Knoll, Inc. Preference control mechanism
US9693632B2 (en) * 2012-06-01 2017-07-04 Aaron Duke Chair and chair tilt control assembly
MY192314A (en) * 2012-09-05 2022-08-17 Godrej & Boyce Mfg Co Ltd Chair with adjustable backrest and seat
KR101504525B1 (ko) * 2014-06-02 2015-03-24 (주)퍼스트삼융 사무용 회전의자
NO339052B1 (no) * 2014-10-27 2016-11-07 Sykkylven Staal As Anordning ved sittemøbel
IT201800002761U1 (it) * 2018-06-14 2019-12-14 Poltroncina per ufficio con schienale e sedile mobili in sincronia.

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GB2195238A (en) * 1986-09-24 1988-04-07 Giroflex Entwicklungs Ag Chair frame
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CH676417A5 (fr) * 1988-07-15 1991-01-31 Giroflex Entwicklungs Ag
DE3930361C2 (de) * 1989-09-12 1993-11-04 Simon Desanta Stuhl, insbesondere buerostuhl
DE4036381C1 (fr) * 1990-11-15 1991-08-14 Degussa Ag, 6000 Frankfurt, De

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DE673442C (de) * 1933-10-31 1939-03-22 Bassick Co Gelenk mit einem unter Vorspannung zwischen den beiden Sitzlagerteilen von federnd neigbaren Sitz- und Liegemoebeln eingepressten Gummikoerper
EP0010990A1 (fr) * 1978-11-06 1980-05-14 Steelcase Inc. Mécanismes de réglage pour sièges
GB2195238A (en) * 1986-09-24 1988-04-07 Giroflex Entwicklungs Ag Chair frame
EP0485868A1 (fr) * 1990-11-14 1992-05-20 Giroflex-Entwicklungs AG Chaise, en particulier chaise d'office

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1066775A1 (fr) * 1999-07-06 2001-01-10 Röder, Peter Chaise
DE10026531A1 (de) * 2000-05-27 2001-12-06 Roeder Peter Stuhl
DE10026531C2 (de) * 2000-05-27 2002-06-13 Roeder Peter Stuhl
CH696379A5 (de) 2002-10-15 2007-05-31 Stoll Giroflex Ag Sitzmöbel.
EP1825780A1 (fr) * 2006-02-24 2007-08-29 Ideassociates (IOM) Limited Un dispositif de charnière pour assembler deux objets de maniere articulée et à ressort
WO2007095960A1 (fr) * 2006-02-24 2007-08-30 Ideassociates (Iom) Ltd Dispositif d'articulation pour chaise de bureau et chaise de bureau
US8100477B2 (en) 2006-10-23 2012-01-24 Ideassociates (Iom) Ltd. Synchronizing device for an office chair

Also Published As

Publication number Publication date
BR9302874A (pt) 1994-02-22
JPH06154055A (ja) 1994-06-03
KR940001844A (ko) 1994-02-16
EP0582818B1 (fr) 1998-04-29
KR100303247B1 (ko) 2001-11-30
US5499861A (en) 1996-03-19
DE59308463D1 (de) 1998-06-04
CH690019A5 (de) 2000-03-31
JP3433299B2 (ja) 2003-08-04

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