EP0884964B1 - Siege, notamment siege de bureau - Google Patents

Siege, notamment siege de bureau Download PDF

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Publication number
EP0884964B1
EP0884964B1 EP97941778A EP97941778A EP0884964B1 EP 0884964 B1 EP0884964 B1 EP 0884964B1 EP 97941778 A EP97941778 A EP 97941778A EP 97941778 A EP97941778 A EP 97941778A EP 0884964 B1 EP0884964 B1 EP 0884964B1
Authority
EP
European Patent Office
Prior art keywords
carrier
chair
disposed
backrest
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.)
Expired - Lifetime
Application number
EP97941778A
Other languages
German (de)
English (en)
Other versions
EP0884964A1 (fr
Inventor
Wolfgang Emmenegger
Anton Erne
Jörg HUBER
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.)
ANTON ERNE
JOERG HUBER
WOLFGANG EMMENEGGER
Stoll Giroflex 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 EP0884964A1 publication Critical patent/EP0884964A1/fr
Application granted granted Critical
Publication of EP0884964B1 publication Critical patent/EP0884964B1/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
    • A47C1/03261—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
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • A47C1/03238—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
    • 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
    • A47C1/031—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
    • A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf 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
    • A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
    • A47C1/03279—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs of torsion type

Definitions

  • the invention relates to a chair, in particular to an office chair adjustable in height and inclination from one supported on a pedestal and with at least an arcuate in the direction of pivot Support body provided with cam track, one on the knee and transversely to the seat direction arranged on it in the form of a pivot axis a first joint point with at least one assigned Spring element, one against the restoring force of the same first articulation point swiveling seat support and an over a second articulated backrest support, which for the relative to the support body in the seat direction oriented pivoting movement via a third joint coupled with it.
  • one in height and Inclination adjustable office chair which one arranged a pedestal and with an approximately circular arc Support arm provided with a guideway, one on the knee side seat brackets arranged thereon and one mounted thereon Includes backrest support, the seat support via a Steering lever and a first one on the knee on the seat support Gas spring and the backrest support via a second Gas pressure spring each on one mounted in the guideway Sliding element are supported.
  • the depending on the Guideway-oriented movement of the seat carrier as well as the independent and relatively oriented movement of the backrest support takes place continuously against the restoring force the assigned in any position lockable Gas Spring.
  • An office chair is known from EP-A 0 539 733 B1, which one mounted on a pedestal and in the direction of the knee-side end oriented support body, an arranged thereon Seat support and one with a backrest and with provided at least one arcuate guide part Backrest support, which with the circular arc Section below the seat support at two at a distance bearing journals arranged with respect to one another and stationary on the supporting body is led.
  • the backrest support and the seat support so independently moved that when moving back to the rest position of the backrest support slightly stronger in relation to the seat support is lowered.
  • DE-A 2 642 091 is a pedestal, a supporting body arranged thereon for a seat plate and one with a backrest Backrest support, which with a molded and approximately arcuate section in an analog circular recess of the Carrier body is guided.
  • the backrest support with the circular arc-shaped section slidable in the recess and detectable accordingly.
  • the invention is based, for a chair according to the task the genus mentioned in the preamble of claim 1 a space-saving and simple, constructive and economical producible design of the functional elements specify by means of which with small relative movements ergonomic, ergonomic movement of the seat carrier and the associated backrest support and under Maintaining a comfortable and safe sitting position work or rest position freely selectable by the user (Relax position) is adjustable.
  • this object is achieved in that which in dependence on the circular arc curve Seated backwards and forwards Pivotal movement by a arranged on the support body and locking mechanism that can be brought into engagement with the backrest support lockable in several positions of your choice and is releasable.
  • Figures 1 to 3 is the first embodiment of the according to the invention and designated as a whole by 100 Office chair shown, which in Fig.1 in a schematic side view and in working position, in Fig.2 in schematic Side view and against the effect of at least one knee side arranged in a horizontal swivel body 40 Torsion element in a backward inclined position (relax position) and shown in Figure 3 in a schematic plan view is.
  • the individual functional units are shown in FIGS. 4 to 10 to achieve the adjustment movement and the locking of the movements mentioned.
  • the office chair 100 essentially comprises, as shown in FIG a seat 10, a pedestal 15, one mounted thereon Support body 20 and in the knee area on the Carried body 20 and with the not shown here Torsion element provided swivel body 40.
  • On the swivel body 40 is a seat support 45 and an associated one and arranged on the support body 20 backrest support 75.
  • the backrest support 75 serves to receive one schematically shown and designated in the entirety with 90 Backrest arranged on a support arm 92 Upholstery part 91.
  • Between the backrest-side surface 10 "of the seat 10 and the lower edge 91 'of the cushion part 91 is a functionally connected with an adjustment mechanism, not shown Push button 93 arranged. By pressing the Push button 93 can cushion member 91 relative to the seat 10 can be adjusted in height in the double arrow direction H.
  • the arrangement of the push button 93 on the inside of the support arm 92 between the seat 10 and the lower edge 91 'of the cushion part 91 has the advantage that the push button 93 of the users sitting on the office chair 100 easily with one Hand operated from left or right and with the other hand the cushion part 91 is adjusted in height according to the requirements can be.
  • the special configuration of the preferably adjustment mechanism integrated in support arm 92 is not Subject of this invention and therefore not shown in detail and described.
  • the seat support 45 is operatively connected to the swivel body 40 on the knee side by means of the one designated as the first articulation point 1 Swivel body 40 mounted on the support body 20.
  • the seat bracket 45 is close to a range the standing column 15 and with respect to that arranged on the backrest side second joint point 2 on the backrest support 75 stored.
  • the backrest support 75 has two in the direction of support arms 77 and 77 ', which each have a between the column 15 and the third articulation point arranged on the knee-side swivel body 40 3 are mounted on the support body 20.
  • the knee joint 1 forms, as shown in Fig.3, together with the swivel body 40 a largely horizontal over the entire width of the seat 10 Swivel axis X-X.
  • the seat designated as a whole by 10 has a seat plate 14 and a non-illustrated manner thereon attached padding 11.
  • the seat 10 is by means of bearing blocks 12 spaced apart from one another and 12 'are arranged on the seat support 45.
  • Seat plate 14 is not the subject of this invention and therefore not described in detail.
  • the standing column 15 partially shown in FIG. 1 has a Standpipe 17, in which a schematically shown and with an actuating mechanism 60 gas pressure spring operatively connected 16 is arranged.
  • the elements mounted on the pedestal 15 of the office chair 100 can Y in the double arrow direction a vertical axis 15 'rotated and by means of the gas pressure spring 16 adjusted in the direction of the double arrow Z and in with respect to the floor can be locked at any height.
  • the with the gas spring 16 operatively connected and mentioned above Actuating mechanism 60 will be described later in connection with Fig.4 described.
  • the in Fig.1 and Fig.2 in a schematic view and in Fig.3 Carrying body 20 shown in plan view has one for storage of the pedestal 15 and formed with a bearing housing 23 (Fig.4) provided head piece 25, two with respect to an axis of symmetry S-S arranged at a parallel distance from each other Side walls 21 and 21 ', which by a starting from the Headpiece 25 in the direction of the knee-side swivel body 40 oriented floor 24 are interconnected.
  • the floor 24 is in the area of the third joint 3 with a Bottom 24 penetrating recess 24 '(Fig.3).
  • the office chair 100 is enlarged and in a schematic Top view shown and you can see that on the axis of symmetry S-S arranged and with the head piece 25 in not shown in detail on the column Support body 20, which is two in the knee area at a distance to each other on the side walls 21, 21 'and has schematically illustrated bearings 27,27 '. Camps 27, 27 'are arranged to accommodate the S-S transverse to the axis of symmetry and essentially forming the pivot axis X-X Swivel body 40 formed. You can also see in Fig.
  • the seat support 45 has, for example two from the sections 49.49 'and 48.48' and 47,47 'formed longitudinal beams 45' and 45 ", in which the two sections 49, 49 'fastened to the swivel body 40 through those oriented obliquely in the direction of the symmetry axis S-S Pieces 48,48 'with the parallel distance to Axis of symmetry S-S arranged sections 47,47 'connected are.
  • the backrest support 75 has two at a parallel distance support arms 77 and arranged to the axis of symmetry S-S 77 ', which in the backrest area by a first Intermediate piece 76 and approximately in the area of the third joint point 3 connected to each other by a second intermediate piece 80 are.
  • This as a grid element corresponding to the swivel movement second intermediate piece 80 formed approximately in a circular arc is with the raster mechanism 65 arranged on the support body 20 Can be engaged for different seating positions.
  • a first one Embodiment of the raster mechanism 65 is shown below described in connection with Figures 5 to 7.
  • the backrest support 75 On the two support arms 77 and 77 'of the backrest support 75 are two spaced from each other and as Articulated bolts 78,78 'and 79,79' trained bearing parts arranged and attached in a manner not shown.
  • the both forming the third joint 3 and corresponding are arranged first hinge pins 79,79 'to each other with a respective slider 85 and 85 'in the associated guide 35,35 'mounted.
  • the both forming and corresponding to the second articulation point 2 are arranged to each other second hinge pins 78,78 ' via the parts 47 and 47 'of the seat support 45 provided bearing blocks 12 'connected to the seat plate 14.
  • a cross member 13 for storage and Attachment of armrests can be arranged on the seat support 45 , as in Fig.1 and Fig.3 shown schematically, a cross member 13 for storage and Attachment of armrests, not shown, can be arranged.
  • the actuating mechanism is on the support body 20 in the area of the head piece 25 60 arranged by means of which the in the Stand column 15 (Fig.1) arranged gas pressure spring 16 actuated can be.
  • the actuating mechanism 60 is in a corresponding trained recess on the head piece 25 of the support body 20 stored and is described below with reference to Figure 4.
  • Fig. 4 shows a section shown on a larger scale along the line IV-IV in Figure 3 with the one on the one Side wall 21 of the cantilevered support body 20 arranged Link guide 35 and a section of the actuating mechanism 60.
  • the link guide 35 has two in parallel Distance from each other and essentially circular arc trained guide bars 36 and 37.
  • the guide bars 36,37 are in the illustrated embodiment on the the pivot axis X-X (Fig.3) facing end by a first End stop 39 connected together.
  • cam track 38 is that on the axle beam 79 of the backrest support 75 (Fig.3) mounted slider 85.
  • the link guide 35 and 35 ' is designed and on the support arms 77, 77 'of the backrest support 75, that they each form the arcuate curved path 38.
  • the imaginary center point D for the circular arc 38 of the link guide In this embodiment, 35, 35 ' is above the supporting body 20 arranged.
  • the imaginary center is D arranged such that it is in the working position of the chair 100 between the surface 9 of the support body 20 and the facing and essentially horizontal oriented underside 9 'of the seat support 45 is located (Fig.1).
  • the actuating mechanism 60 partially shown in FIG. 4 has a release lever provided with a pressure piece 63 ' 63, which by means of two spaced tabs 62 and 64 and an axle pin 61 is mounted on the support body 20.
  • the Tab 64 is shown schematically in FIG second tension and push member 6 operatively connected such that at a pulling movement according to arrow direction 8 '(Fig. 5) of the release lever 63 pivoted from the position shown and that Thrust piece 63 'with the plunger 16' of the gas pressure spring 16 in Intervention and with a pushing movement according to arrow direction 8 disengaged.
  • FIG. 5 is on a larger scale that on one side wall 21 'of the support body 20 arranged and not shown Middle attached grid mechanism 65 in a sectional view shown. Furthermore, you can see a section of the Support body 20 arranged and with the partially shown second pull and push member 6 operatively connected actuating mechanism 60 for the arranged in the pedestal 15 (Fig.1) Gas spring 16 and a portion of the backrest support 75 with the second designed as a locking element Intermediate piece 80.
  • the second intermediate piece 80 is not in detailed manner between the two in parallel Support arms 77 and 77 'arranged at a distance from one another (FIG. 3) of the backrest support 75 and arranged with not shown Means attached.
  • Intermediate piece 80 is spaced on both in the pivoting direction of the backrest support 75 ends arranged with respect to one another are provided with a web 81 and 81 '. Between the two webs 81 and 81 'are in the floor 80 'several, in the pivoting direction of the backrest support 75 spaced-apart recesses 82, 82 ' and 83.83 '. Between the preferably conical are tapered recesses 82,82 'and 83,83' corresponding webs 84, 84 'and 84 "are arranged.
  • grid mechanism essentially comprises a a lateral recess 66 "provided housing 70, a arranged thereon and fastened by means not shown Cover 66, a grid tab mounted in the housing 70 67, an associated pressure piece 74 and a raster head 71.
  • the individual functional elements of the raster mechanism 65 are described below.
  • the housing 70 has a first recess 70 'and one connected second recess 70 ".
  • first Recess 70 ' is the grid tab 67 and the pressure piece 74 arranged, wherein in the second recess 70 " arranged with the pressure piece 74 operatively connected raster head 71 is.
  • grid tab 67 has a a first tab part 68 provided with a cam 68 'and a second tab part 69 provided with a cam 69 ' with an approximately circular arc-shaped end edge 68 " first tab part 68 is in one on the inside of the cover 66 provided recess 66 'arranged.
  • the recess 66 ' has a front edge 68 "correspondingly formed Plant as well as two conically widening, not designated Side faces. That also with an arc Front edge 69 "provided second tab part 69 is in one Recess 74 "of the pressure piece 74 arranged, the recess 74 "roughly analogous to the recess arranged in the cover 66 66 'is formed.
  • the pressure piece 74 is molded on Guide part 74 'coaxially in a blind hole 72 of the raster head 71 arranged and with one in the recess 72 arranged first compression spring 73 operatively connected.
  • the raster head 71 is with a stepped guide part 71 ' guided in a recess of the housing 70, not designated as well as with a molded and tapered trained grid pin 71 ".
  • the grid head 71 is against depending on the actuated grid tab 67 the restoring force of the arranged in the blind hole 72 first compression spring 73 and one against the restoring force the guide part 71 'and in the second recess 70 "of the housing 70 supported second compression spring 73 'shifted in the axial direction such that the grid pin 71 "in one of the spaced apart on the intermediate piece 80 provided recesses 82.82 'or 83.83' locks.
  • the grid tab 67 is by means of the tension and push member 5 by a pulling movement oriented in the direction of arrow 7 ' pivoted about the pin 67 'so that the raster head 71 by the restoring force of the two compression springs 73, 73 ' that the grid pin is moved in the axial direction 71 "comes out of engagement of the intermediate piece 80.
  • the backrest support 75 relative to the support body 20 are freely pivoted.
  • the grid tab 67 is by means of the tension and push member 5 by the thrust movement oriented in the direction of arrow 7 pivoted about the pin 67 'so that the grid pin Snap 71 "into one of the recesses 82,82 'or 83,83' can, or as shown in Fig.7, on one of the between webs 84.84 'provided in the recesses 82.82' or 83.83 ' or 84 "in a so-called preset position as long as spring-loaded rests until the grid pin 71 "during a swivel movement of the backrest support 75 by the restoring force of the compression springs 73, 73 'and depending on the position in one of the recesses 82.82 'or 83.83' engages.
  • Fig. 8 shows on a larger scale and in sectional view front joint 1 (Fig. 1,2) and you can see the knee side arranged and mounted on the support body 20 pivot body 40 with the deformed tube part 41 'and the one arranged therein Torsion element 46, which the receiving tube 41 in penetrates in the axial direction.
  • the torsion element 46 has two superimposed arranged and rectangular in profile cross section Torsion bars 46 ', 46 ".
  • the two torsion bars 46', 46" are in the illustrated embodiment. preferably with the adjacent Long sides approximately horizontally in the swivel body 40 arranged.
  • a clamping lever 50 On the receiving tube 41 of the swivel body 40 is a clamping lever 50 which is attached to the the support bearing 30 of the support body 20 arranged clamping mechanism 55 is in operative connection.
  • the on the receiving tube 41 of the Swing body 40 arranged and fastened clamping lever 50 will be described later in connection with Fig.9.
  • FIG 8 is that shown in profile cross-section and trained for receiving and storing the clamping mechanism 55
  • Support bearing 30 shown.
  • the support bearing 30 has one an end wall 26 integrally formed abutment wall 31 and one formed on the bottom 24 of the support body 20 bottom part 32nd and an intermediate piece arranged parallel to it 32 '.
  • On the bottom part 32 is one with a recess 33 'provided web 33 formed.
  • the arranged in the approximately housing-shaped support bearing 30 Clamping mechanism 55 has a not shown Hub piece 56 with laterally mounted rollers 57 and 57 '.
  • the hub piece 57 is provided with a bearing part 29 on the inside 31 'of the contact wall 31 supported adjusting screw 59 permeated, which with the other not closer designated end stored in the recess 33 'of the web 33 is.
  • the adjusting screw 59 is with the adjusting wheel 58 operatively connected that by a around the axis 59 'in the direction of the arrow Y 'oriented rotation of the hub 56 with the two laterally mounted rollers 57, 57 'either in Arrow direction Z 'or Z "is shifted by the arrow direction
  • the two rollers 57 become Z 'oriented and 57 'against one provided with an elongated recess 51' Plate 51 of the clamping lever 50 pressed and thereby the resilient restoring force of the in the swivel body 40 arranged torsion element 46 biased.
  • At the in Direction of arrow Z "oriented movement can be the elastic Restoring force of the torsion element 46 is reduced again or be relaxed.
  • Fig. 9 shows a part of the plan view and in larger Scale shown swivel body 40, which is essentially forms the front pivot axis X-X.
  • the swivel body 40 includes the receiving tube 41, which in the area of the partially shown axis of symmetry S-S of the chair 100 (Fig. 3) to the outer contour of the two torsion bars 46 ' and 46 "is provided with the form-fitting tube part 41 ' (Fig.8).
  • the two bridges 52,53 each engage with the outside diameter of the Receiving tube 41 adapted, approximately semicircular section 52 'and 53' over the receiving tube 41 and are not in shown attached to it. Between the two bridges 52 and 53 is the one with the elongated recess 51 'for the set screw 59 provided plate 51 which attached to the webs 52, 53 and to the receiving tube 41 is. Furthermore, one can be seen in FIG. 9 at one end of the receiving tube 41 arranged clamping sleeve 42 with the arranged and fastened section 49 of the seat support 45 (Fig.3).
  • the clamping sleeve 42 is at the outer end with one the outer contour of the two torsion bars 46 'and 46 "conformed to the shape Section 42 'provided.
  • the other, opposite End of the receiving tube 41 is formed analogously and provided with an adapter sleeve 43, which at the outer end has a form-fitting section 43 '(FIG. 3).
  • the one attached to the two clamping sleeves 42, 43 of the swivel body 40 Seat support 45 and the second articulation point 2 on the seat support 45 and the third articulation point 3 on the arm-shaped support arm 20 articulated backrest support 75 can counter the adjustable, spring-elastic Restoring force of the arranged in the swivel body 40 and form-fitting with the receiving tube 41 and with the two Adapter sleeves 42, 43 operatively connected torsion element 46 around the horizontal pivot axis X-X of the first articulation point 1 is pivoted become.
  • FIG. 11 shows as a second embodiment a schematic Side view of a section of an office chair 200 and you can see a partially shown pedestal 115, one attached to it and in the knee area a first joint point 1 'provided support body 120, a mounted thereon and designed to receive a seat body 110 Seat support 145 and a backrest support 175.
  • the seat bracket 145 has two at a parallel distance from one another arranged boom 146 and 148, which at the knee end each with a sleeve body 147 and 149 attached to it are provided. Between the two sleeve bodies 147 and 149 is the one with a hollow cylindrical bearing part 126 (Fig. 12) provided support body 120 arranged. Partially in Fig.
  • Stand column 115 shown comprises a standpipe 117 and a gas pressure spring 116 arranged therein, which with a Actuation mechanism 130 is operatively connected.
  • the one on the pillar 115 stored elements of the office chair 200 can, such as above in connection with the office chair 100 according to FIG. 1 described, on the one hand height-adjusted in the double arrow direction Z. and on the other hand in the double arrow direction Y around the vertical Axis 115 'of the column 115 in the horizontal plane be rotated.
  • the one with the plunger 116 'of the gas pressure spring 116 engaging actuation mechanism 130 is preferred analogous to that described in connection with Fig.4 and Fig.5 Actuating mechanism 60 formed.
  • the backrest support 175 includes the two in the direction of the support arms 177 and 178, which has a second joint 2 'with the two Booms 146 and 148 of the seat support 145 are operatively connected as well mounted on the support body 120 via a third joint 3 ' are.
  • On the support body 120 is in the knee area a substantially the horizontal pivot axis X'-X ' Swivel device 140 and a schematically shown Support bearing 123 arranged, which for receiving a clamping mechanism 153, not shown is.
  • the tensioning mechanism 153 for adjusting the resilient Restoring force of the arranged in the swivel device 140 Spring elements 141, 141 '(FIG.
  • the 12 comprise one by one Axis 152 ', adjusting wheel 152 rotatable in the double arrow direction Y' and an adjusting screw 151.
  • the adjusting screw 151 is with a clamping element 150 of the swivel device 140 is operatively connected.
  • the office chair 200 is shown in a top view in FIG one recognizes the and arranged on the axis of symmetry S'-S ' with the head piece 125 on the column 115 (Fig.11) Support body 120.
  • the support body 120 has two by one Bottom 124 interconnected and spaced apart arranged side walls 121 and 121 '.
  • a bearing pin 122 and 122 ' is arranged in each case 121, 121' and attached in a manner not shown.
  • To the each bearing pin 122 and 122 ' is a sliding block 136,136 'stored and secured by means not shown.
  • the supporting body is in the front, knee-side area 120 with the bearing part oriented transversely to the axis of symmetry S'-S ' 126 provided.
  • the bearing part 126 has a recess 126 'in which the Clamp 150 arranged and in a manner not shown is stored.
  • the arms 146 and 148 of the seat support 145 are arranged, which in the knee area with the attached one Sleeve body 147 and 149 are provided.
  • the sleeve body 147 and 149 are shown schematically for inclusion in FIG Torsion bars 141 and 141 'are formed.
  • the torsion bars 141 and 141 'are at one end to the clamp 150 connected and with the other end in one Clamping bushing 142 and 142 'arranged and against rotation secured.
  • Deviating from the first exemplary embodiment according to FIG. 1 to 4 is in the second embodiment according to Fig.11 and Fig.12 which are parallel to the axis of symmetry S'-S 'oriented guide 135 and 135' to the two support arms 177 and 178 of the backrest support 175 arranged.
  • the link guide 135 and provided with an arcuate curved path 172 and 173 135 ' is that on the support body by means of the hinge pin 122, 122' 120 mounted sliding block 136 and 136 'arranged.
  • the imaginary center D ' for the arcuate curved path of the link guide 135 and 135 'above the top edge 177' and 178 ' the two starting from the second joint 2 'in the direction the third joint 3 'inclined support arms 177 and 178 of the backrest support 175 arranged.
  • the imaginary center D ' is arranged in such a way that this is in the working position of the chair 200 (Fig. 11) between the essentially horizontally oriented surface 146 'and 148' of the two arms 146 and 148 of the Seat support 145 and the upper edge 177 'and 178' of the inclined Support arms 177 and 178 of the backrest support 175 are arranged is.
  • the two support arms are in the backrest area 177 and 178 by a backrest part 176 and by one bottom 176 '(FIG. 12) formed thereon.
  • Fig. 13 shows one shown on a larger scale Section along the line B-B in Fig.11 and you can see the between the two arms 146 and 148 of the seat support 145 arranged backrest support 175, which with the two Support arms 177 and 178 on the bearing bolts 144 and 144 'of two arms 146,148 is mounted.
  • a base part 179 177,178 is on the inside 177 "of the support arm 177 Paragraph 179 'provided in which the circular arc Curve 172 formed recess for the backdrop guide 135 is arranged.
  • a shoulder 179 is provided, in which the curved path 173 trained recess for the slide guide 135 ' is arranged.
  • the sliding blocks 136 and 136 ' are each by one at the paragraphs 179 'and 179 "slide plate secured by screws 138, 138' 137 and 137 'in the cam track of the link guide 135 and 135 'held.
  • the two sliding plates 137, 137 ' are preferably as shown in Fig. 14 and Fig. 15, analogous to circular curve 172, 173 concave.
  • Fig. 13 between the two side walls 121, 121 'of the supporting body 120 arranged raster mechanism 155, which has a grid head connected to it 170 with one on the bottom part 179 of the backrest support 175 arranged grid segment 181 can be brought into engagement.
  • the grid segment provided with a toothing (Fig. 16a to 16b) 181 is in one on the bottom part 179 of the backrest support 175 provided recess 180 arranged and through lateral webs 180 'and 180 "fixed to the bottom part 179 Function and details of the grid mechanism 155 is in Connection described with Figures 16a to 16c.
  • the section of the office chair 200 is in the back shown inclined position and one recognizes the inclined Boom 148 and the relative to the fixed Support arm 178 pivoted around the bearing 174 ' of the backrest support 175.
  • Tilt position (relax position) is the swiveling movement of the Support arm 178 through the other side wall 173 'of the cam track 173 limited.
  • FIG. 16a to 16c is dependent on the desired Position of the backrest support 175 which is engaged bringable and arranged on the fixed support body 120 Raster mechanics 155 shown in different positions.
  • the backrest support 175 is in relation blocked on the support body 120 in the sitting and working position and in Fig. 16b in a so-called freewheeling position and in Fig. 16c in a backward inclined and blocked position (Relax position) shown.
  • the grid segment 181 is with one between two End pieces 182 and 182 'arranged toothing 183, which starting from the blocked position according to Fig. 16a in the direction of the arrow P 'according to FIG. 16b Swiveling movement of the backrest support 175 up to the blocked one Position according to Fig. 16c in additional intermediate positions can be blocked.
  • the raster segment 181 can be relative to the support body 120 pivotable backrest support 175 in total be blocked in six positions.
  • the grid segment 181 can, however, also be used with a larger or smaller number of teeth of the toothing 183 be trained.
  • the one in Fig.16a to Fig.16c in view and partially Raster mechanism 155 shown in section comprises a bearing plate 156, a first ratchet lever pivotally mounted thereon 160, a second ratchet lever articulated to it 165 and one arranged in a guide bushing 171 Raster head 170.
  • the one provided with a flange 171 ' Guide bushing 171 is in a at the bottom 124 of the support body 120 provided, for example molded nozzle 128 arranged.
  • the two locking levers 160 and 165 are over one Tension and push member 5 'operatively connected.
  • On the bearing plate 156 are two spaced apart Cam 156 'and 156 "and two spaced apart Flanges 157 and 157 ', each with a recess 157 "are provided.
  • the first grid lever 160 has a cylindrical axle body 162, which on the both ends with a washer 162 'and 162 " is (Fig. 13).
  • the first locking lever 160 is with the axle body 162 in the recess 157 "of the two flanges 157, 157 '.
  • On the axle body 162 are two spaced apart first tabs 161,161 'arranged, which with in between arranged second tabs 164,164 'of the second raster lever 165 are operatively connected via a journal 163.
  • the second locking lever 165 is arranged on it cylindrical axle body 166 in a bearing plate 167 of the grid head 170 stored.
  • the grid head 170 is on the second grid lever 165 facing side with the bearing plate 167, which with a stop 167 'and with one for mounting the cylindrical Axle body 166 correspondingly formed recess (not designated) is provided.
  • At the other end of the raster head 170 are, for example, two at a distance from one another arranged grid pin 168 arranged with the teeth 183 of the raster segment 181 engaged or disengaged are feasible.
  • the one arranged in the guide bushing 171 Raster head 170 is by means of one end the bearing plate 167 of the grid head 170 and with the other End supported on the bottom 124 of the support body 120 compression spring 169 pressed against the second raster lever 165.

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)
  • Special Chairs (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

L'invention concerne un siège, notamment un siège de bureau (100) de hauteur et d'inclinaison réglables, comprenant essentiellement un support (20) fixé à une colonne (15), un corps pivotant (40) fixé au support côté genou, une assise (45) pivotante autour d'une première articulation (1) située côté genou et un dossier (75) relié par liaison de forme à l'assise par une seconde articulation (2). Le dossier (75), couplé au support (20) par une troisième articulation (3), est pourvu de coulisseaux (85, 85') au moyen desquels il est monté dans des coulisses (35, 35') courbes, lesquelles sont fixées au support (20) entre la première articulation (1) côté genou et la colonne (15). Le mouvement de bascule du dossier (75) et de l'assise (45), reliée par liaison de forme au dossier (75), mouvement à guidage forcé le long de la coulisse (35, 35'), peut être bloqué dans plusieurs positions que l'on peut choisir ou bien désenclenché à l'aide d'un mécanisme à enclenchement (65) monté sur le support (20) et pouvant être mis en prise avec le dossier (75).

Claims (16)

  1. Siège, en particulier siège de bureau dont la hauteur et l'inclinaison sont réglables, composé d'un corps de support (20 ; 120) logé au niveau d'un piétement(15 ; 115) et pourvu d'au moins un chemin incurvé (38, 38'; 172, 173) en forme d'arc de cercle orienté dans la direction de pivotement, d'un axe de pivotement, disposé côté genoux et contre celui-ci perpendiculairement à la direction d'assise, sous la forme d'un premier point d'articulation (1 ; 1') auquel est associé au moins un élément à ressort, d'un support d'assise (45 ; 145) pouvant pivoter contre la force de rappel de celui-ci autour du premier point d'articulation, et d'un support de dossier (75 ; 175) qui y est relié activement par un second point d'articulation (2 ; 2'), lequel y est couplé, pour le mouvement de pivotement orienté par rapport au corps de support (20 ; 120) dans la direction d'assise, par un troisième point d'articulation (3 ; 3'), caractérisé en ce que le mouvement de pivotement orienté dans la direction du siège vers l'arrière ou de nouveau vers l'avant, en fonction du chemin incurvé en forme d'arc de cercle (38, 38'; 172, 173), peut être bloqué et à nouveau retiré dans plusieurs positions pouvant être sélectionnées d'une façon quelconque par le biais d'un mécanisme d'encliquetage (65 ; 155) disposé au niveau du corps de support (20 ; 120) et pouvant venir en prise avec le support de dossier (75 ; 175).
  2. Siège selon la revendication 1, caractérisé par des guides de coulisse (35, 35') disposés des deux côtés du corps de support (20) et pourvus du chemin incurvé (38, 38'), dans lesquels sont respectivement disposés des coulisseaux (85, 85') logés au niveau d'un bras porteur (77, 77') du support de dossier (75) et amenés, lors du mouvement de pivotement du support de dossier (75) orienté par rapport au corps de support (20), le long du chemin incurvé (38, 38').
  3. Siège selon la revendication 2, caractérisé en ce que les deux coulisseaux (85, 85') sont logés respectivement au niveau d'un boulon articulé (79, 79') disposé au niveau du bras porteur (77, 77') du support de dossier (75).
  4. Siège selon la revendication 3, caractérisé en ce que le boulon articulé (79, 79') disposé respectivement au niveau du bras porteur (77, 77') du support de dossier (75) est conçu sous la forme d'un coulisseau pouvant être amené le long du chemin incurvé (38, 38').
  5. Siège selon la revendication 1, caractérisé par un guide de coulisse (135 ; 135') disposé au niveau de chaque bras porteur (177, 178) du support de dossier (175) et équipé du chemin incurvé (172, 173), dans lequel sont amenés des coulisseaux (136 ; 136') logés des deux côtés du corps de support (120) lors du mouvement de pivotement, orienté par rapport au corps de support (120), du support de dossier (175) le long du chemin incurvé (172, 173).
  6. Siège selon la revendication 5, caractérisé en ce que les deux coulisseaux (136, 136') disposés dans le guide de coulisse (135, 135') sont logés respectivement au niveau d'un boulon articulé (122, 122') disposé au niveau du corps de support (120).
  7. Siège selon la revendication 6, caractérisé en ce que le boulon articulé (122, 122') disposé respectivement au niveau du bras porteur (177, 178) du support de dossier (175) est conçu sous la forme d'un coulisseau amené le long du chemin incurvé (172, 173).
  8. Siège selon l'une des revendications 1 à 7, caractérisé en ce que chaque chemin incurvé (38, 38'; 172, 173) du guide de coulisse (35, 35'; 135, 135') présente un axe médian théorique en forme d'arc de cercle (R', R") dont le point médian (D ; D') est situé, dans la position de repos du siège (100 ; 200,) entre les parois orientées les unes vers les autres du corps de support (20 ; 120) et le support d'assise (45 ; 145).
  9. Siège selon la revendication 1, caractérisé par un corps de pivotement (40 ; 140) formant l'axe de pivotement horizontal côté genoux et relié activement au corps de support (20 ; 120), ainsi qu'un mécanisme de serrage (55 ; 153) agissant conjointement avec et au moyen duquel la force de rappel par déformation élastique de l'élément à ressort disposé dans le corps de pivotement (40; 140) est réglable.
  10. Siège selon la revendication 9, caractérisé en ce que l'élément à ressort disposé dans le corps de pivotement (40 ; 140) est conçu en tant que ressort de torsion (46 ; 141), qui présente au moins deux barres de torsion (46', 46"; 141', 141") conçues en forme de rectangle en coupe de profil et adjacentes sur leur largeur, et en ce que la force de rappel par déformation élastique de celles-ci peut être réglée au moyen du mécanisme de serrage (55 ; 153).
  11. Siège selon les revendications 9 et 10, caractérisé en ce que le mécanisme de serrage (55 ; 153) présente une vis de réglage (59 ; 151), disposée dans un palier d'appui (30; 120) du corps de support (20 ; 120) et agissant sur un levier de serrage (50) qui lui est coordonné et relié activement aux barres de torsion (46', 46"; 141', 141"), au moyen de laquelle la force de rappel par déformation élastique peut être réglée.
  12. Siège selon la revendication 1, caractérisé en ce que le support de dossier (75; 175) présente, dans la zone du corps de support (20, 120) équipé d'un fond (24 ; 124), un élément intermédiaire (80; 179) reliant ensemble les deux bras porteurs (77, 77'; 177, 178), au niveau duquel est disposé le mécanisme d'encliquetage (65 ; 155) conçu pour bloquer le mouvement de pivotement du support de dossier (75; 175) orienté par rapport au corps de support (20 ; 120).
  13. Siège selon les revendications 1 et 12, caractérisé en ce que le mécanisme d'encliquetage (65) présente une tête d'encliquetage (71) chargée par ressort et équipée d'un tourillon d'encliquetage façonné (71"), laquelle, en fonction du mouvement de pivotement du support de dossier (75), peut être amenée en prise par conjonction de forme avec au moins un évidement (82, 82'; 83, 83') disposé dans l'élément intermédiaire (80) du corps de support (20).
  14. Siège selon les revendications 1 et 12, caractérisé en ce que le mécanisme d'encliquetage (165) présente, au niveau de la face interne de l'élément intermédiaire (179), un segment d'encliquetage (181) pourvu d'une denture (183) disposée perpendiculairement à la direction de pivotement, lequel segment, en fonction du mouvement de pivotement du support de dossier (175), peut être amené en prise par conjonction de formes avec une tête d'encliquetage (170) disposée au niveau du corps de support (120).
  15. Siège selon la revendication 14, caractérisé en ce que la tête d'encliquetage (170) présente au moins un tourillon d'encliquetage (168) conçu de façon analogue à la denture (183) et pouvant par conséquent être encliqueté par conjonction de formes.
  16. Siège selon l'une des revendications 13 à 15, caractérisé en ce que le mécanisme d'encliquetage (65 ; 165) disposé dans le corps de support (20 ; 120) présente respectivement une bride d'encliquetage (67 ; 160, 165) pouvant pivoter autour d'un axe et reliée activement à un élément de traction et poussée (5 ; 5'), au moyen de laquelle la tête d'encliquetage (71 ; 171) qui y est reliée activement peut, en fonction de la direction de mouvement, être amenée par conjonction de forme en prise ou hors de prise avec les évidements ou avec la denture de l'élément intermédiaire (80 ; 179).
EP97941778A 1996-10-11 1997-10-07 Siege, notamment siege de bureau Expired - Lifetime EP0884964B1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
CH247996 1996-10-11
CH247996 1996-10-11
CH2237/97 1997-09-23
CH223797 1997-09-23
CH2479/96 1997-09-23
CH223797 1997-09-23
PCT/CH1997/000378 WO1998016138A1 (fr) 1996-10-11 1997-10-07 Siege, notamment siege de bureau

Publications (2)

Publication Number Publication Date
EP0884964A1 EP0884964A1 (fr) 1998-12-23
EP0884964B1 true EP0884964B1 (fr) 2002-06-05

Family

ID=25689869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97941778A Expired - Lifetime EP0884964B1 (fr) 1996-10-11 1997-10-07 Siege, notamment siege de bureau

Country Status (9)

Country Link
US (1) US5971481A (fr)
EP (1) EP0884964B1 (fr)
JP (1) JP3947934B2 (fr)
BR (1) BR9706831A (fr)
DE (1) DE59707419D1 (fr)
DK (1) DK0884964T3 (fr)
ES (1) ES2174286T3 (fr)
TW (1) TW360509B (fr)
WO (1) WO1998016138A1 (fr)

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NO982788L (no) * 1998-06-17 1999-12-20 Ring Mekanikk As Stolbeslag
IT1308075B1 (it) * 1999-06-04 2001-11-29 Pro Cord Srl Sedia con sedile oscillante
DE20004361U1 (de) * 2000-03-10 2001-04-12 FROLI Kunststoffwerk Heinrich Fromme oHG, 33758 Schloß Holte-Stukenbrock Sitz für eine Stehhilfe oder für einen Büro- bzw. Werkstattstuhl
WO2001070074A1 (fr) 2000-03-24 2001-09-27 Giroflex-Entwicklungs-Ag Systeme d'assise et de dossier pour des sieges, notamment pour des chaises de bureau
US6450578B1 (en) 2000-08-18 2002-09-17 Michael Blake Taggett Ergonomic chair
AU783829B2 (en) 2000-09-28 2005-12-08 Formway Furniture Limited A reclinable chair
USD445580S1 (en) 2000-09-28 2001-07-31 Formway Furniture Limited Chair
USD463144S1 (en) 2000-09-28 2002-09-24 Formway Furniture Limited Chair
AUPR054400A0 (en) 2000-09-29 2000-10-26 Formway Furniture Limited A castor
DE10125994A1 (de) * 2001-05-18 2002-11-21 Bock 1 Gmbh & Co Synchronmechanik für eine korrelierte Sitz-Rückenlehnen-Bewegung eines Bürostuhles
DE60333462D1 (de) * 2002-06-25 2010-09-02 L & P Property Management Co Stütze für kipp- oder synchronisierte stühle
EP1855567B1 (fr) * 2005-03-01 2015-09-23 Haworth, Inc. Mecanisme de controle d'inclinaison d'un fauteuil
US7234779B2 (en) * 2005-04-08 2007-06-26 Steelcase Development Corporation Armrest with height adjustment mechanism
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US8172324B2 (en) * 2008-06-06 2012-05-08 Knoll, Inc. Preference control mechanism
DE102011001811A1 (de) * 2011-04-05 2012-10-11 Wilkhahn Wilkening + Hahne Gmbh + Co. Kg Stuhl
US20160128481A1 (en) * 2014-11-11 2016-05-12 Pro-Cord S.P.A. Chair with seat and backrest movable in a synchronized way
US9883746B2 (en) * 2014-11-11 2018-02-06 Pro-Cord S.P.A. Chair with seat and backrest movable in a synchronized way
US11259637B2 (en) 2015-04-13 2022-03-01 Steelcase Inc. Seating arrangement
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US10966527B2 (en) 2017-06-09 2021-04-06 Steelcase Inc. Seating arrangement and method of construction
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Also Published As

Publication number Publication date
ES2174286T3 (es) 2002-11-01
WO1998016138A1 (fr) 1998-04-23
BR9706831A (pt) 2001-10-16
US5971481A (en) 1999-10-26
TW360509B (en) 1999-06-11
EP0884964A1 (fr) 1998-12-23
DE59707419D1 (de) 2002-07-11
JP3947934B2 (ja) 2007-07-25
JP2000502278A (ja) 2000-02-29
DK0884964T3 (da) 2002-07-15

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