EP1454568A2 - Chair, particularly office-chair - Google Patents

Chair, particularly office-chair Download PDF

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Publication number
EP1454568A2
EP1454568A2 EP04004811A EP04004811A EP1454568A2 EP 1454568 A2 EP1454568 A2 EP 1454568A2 EP 04004811 A EP04004811 A EP 04004811A EP 04004811 A EP04004811 A EP 04004811A EP 1454568 A2 EP1454568 A2 EP 1454568A2
Authority
EP
European Patent Office
Prior art keywords
chair
support part
seat support
bolt
pivot axis
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
EP04004811A
Other languages
German (de)
French (fr)
Other versions
EP1454568B1 (en
EP1454568A3 (en
Inventor
Manfred Elzenbeck
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.)
Friedrich W Dauphin GmbH and Co
Dauphin Entwicklungs und Beteiligungs GmbH
Original Assignee
Friedrich W Dauphin GmbH and Co
Dauphin Entwicklungs und Beteiligungs GmbH
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 Friedrich W Dauphin GmbH and Co, Dauphin Entwicklungs und Beteiligungs GmbH filed Critical Friedrich W Dauphin GmbH and Co
Priority to PL04004811T priority Critical patent/PL1454568T3/en
Publication of EP1454568A2 publication Critical patent/EP1454568A2/en
Publication of EP1454568A3 publication Critical patent/EP1454568A3/en
Application granted granted Critical
Publication of EP1454568B1 publication Critical patent/EP1454568B1/en
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
    • 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
    • A47C1/03233—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 a rack-and-pinion or like gearing 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
    • A47C1/03205—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
    • A47C1/03261—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

Definitions

  • the invention relates to a chair, in particular an office chair, after Preamble of claim 1.
  • Such a chair is known from DE 43 24 545 A1.
  • a so-called synchronous mechanism at the backrest and seat in a certain predetermined ratio to be pivoted simultaneously.
  • a power storage in the form of a helical compression spring arranged, by means of between the front seat support part and the rear seat support member is generated a force which the backrest in its front end position and the rear area of the seat pushes in its upper position.
  • a so-called seesaw mechanism given that is, the user can against the restoring force of the backrest bobbing with your back.
  • the synchronous mechanism can be locked so that there is no relative movement between the seat support parts can be done more.
  • a catch or locking the synchronous mechanism takes place in situations in which the user does not want mobility of the backrest. If the locking is done in an upright position of the backrest, the resulting seating position can be adjusted by the user with the Time to be uncomfortable.
  • the invention is therefore based on the object, a better to the needs the user adapted locking device at a To create chair of the type mentioned.
  • the locking device rather, provides a plurality of discrete locking positions the seat support parts ready for each other. It is therefore possible the Synchronous mechanism if required in a relatively upright or in one compared to lock inclined position of the backrest. Of course, you can also have more than two locking positions pretend.
  • a stepless specification of locking positions by appropriate design of the locking device, for example, by a corresponding clamping mechanism, possible.
  • a locking device according to claim 2 can be constructive with realize little effort, the locking device in the single discrete locking positions also larger load forces can withstand. As a rule, there are some locking positions, For example, four locking positions, sufficient.
  • a locking device according to claim 3 is structurally simple and still safe.
  • the locking device according to claim 4 ensured that the bolt and the counter body in a change of Relative positions of the seat support parts before locking their distance not significantly change each other, so that the stroke of the locking movement from the predetermined relative position between the seat support parts is essentially independent. This increases the ease of use of Locking device.
  • a locking device In a locking device according to claim 5 is a specific Relative position between bar and counter-body of a relative position clearly assigned between the two seat support parts. This increases the Operating safety of the locking device.
  • the pivot axis between the components of the locking device, ie the counter body and the bolt, may, but need not, with the pivot axis between the two seat support parts coincide.
  • a coupling element can be a Translation between the relative pivoting of the components of the Locking device on the one hand and the seat support parts on the other pretend. Even with relatively far apart arranged Locking positions, as far as the locking device, can in this way finely graduated locking positions, what the Wegturimaschine anxx, realized.
  • Fig. 1 shows an office chair with a chair frame 1. This is with a Pedestal 2 provided, which is about rollers 3 with respect to the ground supported. On the pedestal 2 is a height-adjustable chair column. 4 attached, at whose upper end a seat support 5 is attached. The latter is designed in two parts; he has a front seat support part 6, the on the chair column 4 is fixed, and a rear seat support part 7, the above the chair column 4 by means of a rotatable about a pivot axis 8 Swivel joint is articulated on the front seat support part 6.
  • a support tube 9 is fixed, which is parallel to the pivot axis 8 extends. On this support tube 9 is based Seat 10 shortly behind its leading edge 11 from.
  • the support tube 9 therefore represents a front support portion for the seat 10.
  • the seat 10 is supported in its rear region on a support shaft 12 from the rear seat support part 7 is stored.
  • the support shaft 12 therefore provides a rear support portion for the seat 10.
  • At the rear seat support part 7 is still arranged a seat tilt adjustment 13.
  • a backrest height adjustment device 16 is provided.
  • the described embodiment of the seat support 5 with the arrangement of Seat 10 and the backrest 15 forms a so-called synchronous mechanism.
  • a total provided with 17 designated force variation device that still will be explained in detail.
  • Part of the force changing device 17 is a over the front seat support member 6 downwardly projecting adjusting nut 18, of which in Fig. 1, a freely rotatable cap 19 is visible.
  • the chair column 4 has the height adjustment of the seat support 5 with the seat 10 and the backrest 15 a known length-adjustable gas spring 21st on, which is shown in Fig. 3 in plan view.
  • the gas spring 21 is in a Cone formed clamping device 22 of the front seat support part. 6 held clamped. From the gas spring 21 projects upwards a valve actuating pin 23 out, when it is inserted into the gas spring 21 a there existing valve is opened, causing length adjustments of the gas spring 21 become possible.
  • Such gas springs are for example in the DE 18 12 282 C2 (corresponding to US Pat. No. 3,656,593).
  • valve operating lever 24 To actuate the valve actuating pin 23 is a two-armed Valve operating lever 24 is provided, which pivotally against the Swivel axis 8 is supported, as described for example in DE 43 24 545 A1 is.
  • a first lever arm 25 of the valve operating lever 24 is located against the valve actuating pin 23, while the second lever arm 26th be actuated by a known from DE 43 24 545 A 1 lever mechanism can.
  • a pivoting of the rear seat support part 7 relative to the front Seat support part 6 of the synchronous mechanism counteracts an energy storage 27, which is in the illustrated embodiment, a biased Screw compression spring 28 is.
  • a biased Screw compression spring 28 is.
  • the energy storage 27th a helical compression spring 28 passing through the guide rod 30.
  • the compression coil spring 28 is supported against a shoe 31 of the force changing device 17 from.
  • the sliding shoe 31 in turn abuts against a sliding surface 32, which at a first, short lever arm 33 of the rear seat support part 7 is formed.
  • the lever arm 33 is integrally formed with the rear seat support member 7 and extends from the pivot axis 8 from substantially downwards.
  • Geometric In this respect, the rear seat support part 7 is designed as an angle lever.
  • On the guide rod 30 of the slide shoe 31 along the helical compression spring 28 movable. At one of the abutment 29 opposite Adjustment section 34 of the guide rod 30 engages the force changing device 17 on. A adjoining the adjusting portion 34 connecting portion 35 of the guide rod 30 passes through the first lever arm 33 of the rear seat support member 7.
  • the screw compression spring 28 penetrating portion of the guide rod 30 Opposite the screw compression spring 28 penetrating portion of the guide rod 30 is the Connecting portion 35 toward the rear seat support member 7 angled.
  • the adjusting portion 34 of the guide rod 30 is therefore on the bent back seat support part 7 to and the seat support 5 adjacent arranged.
  • Part of the force changing device 17 is an adjusting screw 36, the on the adjusting portion 34 of the guide rod 30 via a pivot joint with Swivel axis 37 is pivotally articulated.
  • the distance between the pivot axis 8 between the seat support parts 6, 7 on the one hand and the central axis of the helical compression spring 28 on the other is designated in Fig. 5 with a.
  • the adjusting screw 36 engages in the adjusting nut 18, which in a lower Wall 38 of the front seat support member 6 rotatably, but in the direction of the screw 36 is mounted immovably.
  • the adjusting nut 18 On the cap 19 opposite End, the adjusting nut 18 has a straight toothed conical section 39 on. In the sprocket of this engages a likewise straight toothed Cone portion 40 of an end portion 41 of an actuating rotary handle 42 on.
  • the two cone sections 39, 40 thus form a straight-toothed Bevel gear.
  • a rotation axis 43 of the adjusting screw 36 and an axis of rotation 44 of the actuating rotary handle 42 are not aligned with each other, but intersect and close a right one with each other Angle.
  • the end portion 41 is in a side wall 45 of the front Seat support part 6 rotatably, but axially to the axis of rotation 44 of the actuating rotary handle 42 immovably stored.
  • the free end of the actuating rotary handle 42 is as an oval handle 46th formed with recessed grips 47.
  • the handle 46 has a central bore 48, which at the free end of the handle 46 by a depressed Cap 49 is closed. Introduced into the hole is a Connecting screw 50, which the handle 46 at the end portion 41 of Actuator rotary handle 42 holds.
  • the sliding surface 32 at least approximately a circular arc section lies whose center above the axis the pivot joint of the abutment 29 is formed, changes at a rotation of the actuating rotary handle 42 a distance b between the pivot axis of the abutment 29 and the penetration of the axis of the energy storage 27 by the sliding surface 32 only slightly. Therefore changes in such adjustments, the bias of the coil compression spring 28 practically not.
  • the sliding surface 32 formed by the abutment 29 Swivel joint is achieved that on the screw 36 is always a transmitted by the compression coil spring 28 mediated tensile force. This leads to to that the set screw 36 in the adjusting nut 18 always defined in such a way is guided, that in Fig. 5 overhead thread flanks of the thread the adjusting screw 36 to the corresponding thread flanks of the internal thread the adjusting nut 18 abut.
  • the of the helical compression spring 28 on the first lever arm 33 of the rear Seat support part 7 acting force is therefore not changed; it will merely by changing the distance a between the axis of Force accumulator 27 and the pivot axis 8 of the effective lever arm, the Overall, that is from the helical compression spring 28 on the rear Seat support part 7 and thus on the seat 10 and the backrest 15 acting Torque, changed.
  • This torque becomes smaller, the smaller the distance is a and vice versa.
  • the on the actuating handle 42nd applied adjusting forces over the entire adjustment of the shoe 31 can be kept constant, as frictional forces between the shoe 31 and the sliding surface 32 and also the actuating forces the mechanical coupling between the guide rod 30 and the actuating knob 42 practically do not change.
  • Locking device 50 To the joint pivoting of the seat 10 and the backrest 15 in the synchro-mechanics against the force of the helical compression spring To be able to switch off 28 is one shown in FIGS. 6 to 8 Locking device 50 is provided.
  • the locking device 50 includes a latch 51, which at the front seat support part 6 to a Swivel joint with pivot axis 52 is pivoted.
  • the Pivot axis 52 substantially coincides with that of abutment 29 together.
  • the bolt 51 At its free, remote from the pivot axis 52 end the bolt 51 has a horizontally arranged locking bolt 53, which is fixed to the bolt 51 and passes through it in such a way that it leads to both Sides over the bar 51 in the horizontal direction.
  • Part of the locking device 50 is a cooperating with the latch 51 Counter body 54. This is on the front seat support part 6 to a Swivel joint with pivot axis 55 pivotally articulated.
  • the Swivel axes 52, 55 are spaced apart and parallel.
  • the counterbody 54 has two spaced apart, parallel, vertical and Plates 56 arranged perpendicular to the pivot axis 55. These have in rough approximation, a triangular shape, wherein the pivot axis 55 opposite side as a bar-peripheral portion 57 approximated is located on a circular arc section whose center through the Swivel axis 55 is formed.
  • each substantially semi-circular latch receptacles 58 formed, wherein in each case two bolt receptacles in each one of the plates 56 in pairs with each other aligned.
  • the width of the bolt receptacles 58 is complementary to Lock bolt 53 of the bolt 51 dimensioned such that the locking bolt 53rd engage substantially free of play in a pair of bolt receptacles 58 can.
  • This engagement of the locking bolt 53 takes place in the bolt receptacles 58 such that in each case one of the two free ends of the locking bolt 53 in one of the two bolt receptacles 58 of the corresponding pair of Lock receptacles 58 engages.
  • a pivot joint with pivot axis 59 is on the counter body 54 as Coupling element articulated a connecting member 60.
  • the pivot axes 55 and 59 are spaced apart and parallel.
  • about another Swivel joint with pivot axis 61 is the connecting member 60 at the first, short lever arm 33 of the rear seat support part 7 hinged.
  • the Pivot axis 61 is in this case parallel to the pivot axes 8 and 59 and spaced apart from these.
  • Fig. 7 shows the locking device 50 in a position in which the Lock bolt 53 in the side view of Figs. 7 and 8 furthest Left illustrated latch receptacle 58 is assigned. In this position is the rear seat support member 7 with the backrest support 14 in the furthest upright position.
  • Fig. 8 shows the locking device 50 in a position in which the Latch bolt 53 of FIGS. 7 and 8 furthest to the right Latch receptacle 58 is assigned. In this position, the rear seat support part 7 with the backrest support 14 furthest back in a lying position inclined.
  • the connecting member 60 therefore acts as mechanical translation member, which is the pivoting of the counter body 54 in relation to the pivoting of the rear seat support part. 7 translated.
  • the locking device 50 is disabled, so that a synchronous relative movement between the seat support parts 6, 7 allows is. If the user overrides the synchronous mechanism, ie the seat support parts 6, 7 wants to lock against each other, he brings first by appropriate pressure on the backrest 15 and thus on the Backrest support 14 on the rear seat support part 7 latter in one desired relative position to the front seat support part 6. In connection the user actuates the operating handle 63 and moves the locking bolt 53 in the direction of the bolt peripheral portion 57 to.
  • the connecting member 60 ensures by its translation function here, that despite the not too small Distance of the bolt receptacles 58 in the circumferential direction of the bolt peripheral portion 57 to each other a fine gradation of discrete relative positions the seat support parts 6, 7 is given.
  • Figs. 5 to 8 and Figs. 10 and 11 show details of the seat tilt adjusting device 13.
  • the support axis 12 is for this purpose by a first lever arm 70 of a Ne Trentsverstellhebels 71, which is parallel to the pivot axis 8 Swivel axis 72 is pivotable.
  • a second lever arm 73 is via a pivot joint with also to the pivot axis 8 parallel Swivel axis 74 a tilt adjustment screw 75 hinged. This is axial slidably and non-rotatably mounted.
  • the tilt adjustment screw 75 engages in a tilt adjusting nut 76, which in a lower wall 77 of the rear Seat support part 7 rotatable, but in the direction of the tilt adjustment screw 75 is mounted immovably.
  • the tilt adjusting nut 76 has a spur gear Cone section 78 on.
  • the two cone sections 78, 79 thus form a straight bevel gear.
  • a rotation axis 82 the set screw 75 and a rotation axis 83 of the tilt-actuated rotary handle 81 do not curse with each other, but intersect and enclose a right angle with each other.
  • the end portion 80 is in a side wall 84 of a housing 85 which on the rear seat support part 7 is rotatable, but axially to the axis of rotation 83 of the tilt actuation rotary handle 81 immovably stored.
  • the free end of the tilt actuation knob 81 is like that of the actuating rotary handle 42 configured as an oval handle 46, so refer to the relevant description of the actuating rotary handle 42 can be.
  • a flexible Wave in particular a spring shaft.
  • Such flexible waves for Power transmission are known.
  • With such a flexible shaft can also a mechanical coupling of the rotational movements of the tilt actuation rotary handle 81 about the axis of rotation 83 on the one hand and the set screw 75 take place about the axis of rotation 82 on the other.

Abstract

The chair is equipped with a seat carrying construction (5) assembled of a swivel mounted (8) front and rear part (7). The seat can be adjusted regarding its level of inclination with a spring, adjustable in length and swivel mounted between front and rear part (7). The parts (7) can be locked in a pre-selected position as required by the particular user. The locking device is assembled of a latch (51) with a cylindrical extension (53) engaging with one of several recesses (58) located at the curved upper edge (57) of a triangular element (54) rotating around a transversally positioned bolt (55).

Description

Die Erfindung betrifft einen Stuhl, insbesondere einen Bürostuhl, nach dem Oberbegriff des Anspruchs 1.The invention relates to a chair, in particular an office chair, after Preamble of claim 1.

Ein derartiger Stuhl ist aus der DE 43 24 545 A1 bekannt. Bei der bekannten Ausgestaltung handelt es sich um eine sogenannte Synchron-Mechanik, bei der Rückenlehne und Sitz in einem bestimmten vorgegebenen Verhältnis gleichzeitig verschwenkt werden. Zwischen dem vorderen Sitzträgerteil und dem hinteren Sitzträgerteil ist ein Kraftspeicher in Form einer Schrauben-Druckfeder angeordnet, mittels der zwischen dem vorderen Sitzträgerteil und dem hinteren Sitzträgerteil eine Kraft erzeugt wird, welche die Rückenlehne in ihre vordere Endposition und den hinteren Bereich des Sitzes in seine obere Position drückt. Zudem ist eine sogenannte Wipp-Mechanik gegeben, das heißt der Benutzer kann gegen die Rückstellkraft der Rückenlehne mit dem Rücken wippen. Mittels einer Verriegelungseinrichtung kann die Synchron-Mechanik arretiert werden, so dass keine Relativbewegung zwischen den Sitzträgerteilen mehr erfolgen kann. Eine Arretierung beziehungsweise Verriegelung der Synchron-Mechanik erfolgt in Situationen, in denen der Benutzer keine Beweglichkeit der Rückenlehne wünscht. Wenn die Verrieglung in einer aufrechten Position der Rückenlehne erfolgt, kann die daraus sich ergebende Sitzposition vom Benutzer mit der Zeit als unangenehm empfunden werden.Such a chair is known from DE 43 24 545 A1. In the known Embodiment is a so-called synchronous mechanism, at the backrest and seat in a certain predetermined ratio to be pivoted simultaneously. Between the front seat support part and the rear seat support member is a power storage in the form of a helical compression spring arranged, by means of between the front seat support part and the rear seat support member is generated a force which the backrest in its front end position and the rear area of the seat pushes in its upper position. In addition, a so-called seesaw mechanism given, that is, the user can against the restoring force of the backrest bobbing with your back. By means of a locking device The synchronous mechanism can be locked so that there is no relative movement between the seat support parts can be done more. A catch or locking the synchronous mechanism takes place in situations in which the user does not want mobility of the backrest. If the locking is done in an upright position of the backrest, the resulting seating position can be adjusted by the user with the Time to be uncomfortable.

Der Erfindung liegt daher die Aufgabe zugrunde, eine besser an die Bedürfnisse der Benutzer angepasste Verriegelungseinrichtung bei einem Stuhl der eingangs genannten Art zu schaffen. The invention is therefore based on the object, a better to the needs the user adapted locking device at a To create chair of the type mentioned.

Diese Aufgabe ist erfindungsgemäß gelöst durch die im Kennzeichnungsteil des Anspruchs 1 angegebenen Merkmale.This object is achieved by the in the characterizing part of claim 1 specified features.

Erfindungsgemäß wurde erkannt, dass es keine bestimmte Relativposition zwischen den Sitzträgerteilen gibt, bei denen die divergierenden Wünsche nach einer bequemen Sitzposition einerseits und einer ausreichenden Unterstützung bei aufrechter Körperposition andererseits bei verriegelter Synchron-Mechanik erfüllt werden können. Die erfindungsgemäße Verriegelungseinrichtung stellt vielmehr eine Mehrzahl diskreter Verriegelungspositionen der Sitzträgerteile zueinander bereit. Es ist daher möglich, die Synchron-Mechanik bei Bedarf in einer relativ aufrechten oder auch in einer im Vergleich hierzu geneigteren Stellung der Rückenlehne zu verriegeln. Natürlich lassen sich auch mehr als zwei Verriegelungspositionen vorgeben. Gegebenenfalls ist auch eine stufenlose Vorgabe von Verriegelungspositionen durch entsprechende Gestaltung der Verriegelungseinrichtung, zum Beispiel durch einen entsprechenden Klemmmechanismus, möglich.According to the invention, it has been recognized that there is no specific relative position between the seat carrier parts, where the divergent wishes for a comfortable sitting position on the one hand and a sufficient support in upright body position on the other hand with locked synchronous mechanism can be met. The locking device according to the invention rather, provides a plurality of discrete locking positions the seat support parts ready for each other. It is therefore possible the Synchronous mechanism if required in a relatively upright or in one compared to lock inclined position of the backrest. Of course, you can also have more than two locking positions pretend. Optionally, a stepless specification of locking positions by appropriate design of the locking device, for example, by a corresponding clamping mechanism, possible.

Eine Verriegelungseinrichtung nach Anspruch 2 lässt sich konstruktiv mit geringem Aufwand realisieren, wobei die Verriegelungseinrichtung in den einzelnen diskreten Verriegelungspositionen auch größeren Belastungskräften standhalten kann. In der Regel sind einige Verriegelungspositionen, zum Beispiel vier Verriegelungspositionen, ausreichend.A locking device according to claim 2 can be constructive with realize little effort, the locking device in the single discrete locking positions also larger load forces can withstand. As a rule, there are some locking positions, For example, four locking positions, sufficient.

Eine Verriegelungseinrichtung nach Anspruch 3 ist konstruktiv einfach und trotzdem sicher.A locking device according to claim 3 is structurally simple and still safe.

Bei einer Ausgestaltung der Verriegelungseinrichtung nach Anspruch 4 ist sichergestellt, dass der Riegel und der Gegenkörper bei einer Änderung der Relativpositionen der Sitzträgerteile vor der Verriegelung ihren Abstand zueinander nicht wesentlich ändern, so dass der Hub der Verriegelungsbewegung von der vorgegebenen Relativposition zwischen den Sitzträgerteilen im Wesentlichen unabhängig ist. Dies erhöht den Bedienkomfort der Verriegelungseinrichtung.In one embodiment of the locking device according to claim 4 ensured that the bolt and the counter body in a change of Relative positions of the seat support parts before locking their distance not significantly change each other, so that the stroke of the locking movement from the predetermined relative position between the seat support parts is essentially independent. This increases the ease of use of Locking device.

Bei einer Verriegelungseinrichtung nach Anspruch 5 ist eine bestimmte Relativposition zwischen Riegel und Gegenkörper einer Relativposition zwischen den beiden Sitzträgerteilen eindeutig zugeordnet. Dies erhöht die Bediensicherheit der Verriegelungseinrichtung. Die Schwenkachse zwischen den Komponenten der Verriegelungseinrichtung, also dem Gegenkörper und dem Riegel, kann, muss aber nicht, mit der Schwenkachse zwischen den beiden Sitzträgerteilen zusammenfallen.In a locking device according to claim 5 is a specific Relative position between bar and counter-body of a relative position clearly assigned between the two seat support parts. This increases the Operating safety of the locking device. The pivot axis between the components of the locking device, ie the counter body and the bolt, may, but need not, with the pivot axis between the two seat support parts coincide.

Wird gemäß Anspruch 6 ein Kupplungselement vorgesehen, lässt sich eine Übersetzung zwischen den Relativverschwenkungen der Komponenten der Verriegelungseinrichtung einerseits und den Sitzträgerteilen andererseits vorgeben. Auch bei relativ weit auseinanderliegend angeordneten Verriegelungspositionen, was die Verriegelungseinrichtung angeht, können auf diese Weise fein abgestufte Verriegelungspositionen, was die Sitzträgerteile angeht, realisiert werden.Is provided according to claim 6, a coupling element, can be a Translation between the relative pivoting of the components of the Locking device on the one hand and the seat support parts on the other pretend. Even with relatively far apart arranged Locking positions, as far as the locking device, can in this way finely graduated locking positions, what the Sitzträgerteile angeht, realized.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Es zeigt

Fig. 1
einen Stuhl in perspektivischer Gesamtdarstellung,
Fig. 2
eine teilweise geschnittene Draufsicht auf einen Sitzträger des Stuhles nach Fig. 1,
Fig. 3
eine zur Fig. 2 ähnliche, unterbrochene und nicht geschnittene Draufsicht auf den Sitzträger,
Fig. 4
einen Schnitt gemäß Linie IV-IV in Fig. 2,
Fig. 5
einen Schnitt gemäß Linie V-V in Fig. 2 in einer im Vergleich zu Fig. 4 weiter herausgedrehten Position einer Stellschraube,
Fig. 6
eine zu Fig. 3 ähnliche Draufsicht auf den Sitzträger, welche einen anderen Abschnitt von diesem zeigt,
Fig. 7
einen Schnitt gemäß Linie VII-VII in Fig. 6,
Fig. 8
einen zur Fig. 7 ähnlichen Schnitt in einer anderen Relativstellung zweier Sitzträgerteile des Stuhls,
Fig. 9
eine zur Fig. 2 ähnliche Draufsicht auf einen Sitzträger eines alternativen Stuhls,
Fig. 10
einen Schnitt gemäß Linie X-X in Fig. 9 und
Fig. 11
einen Schnitt gemäß Linie XI-XI in Fig. 10.
An embodiment of the invention will be explained in more detail with reference to the drawing. It shows
Fig. 1
a chair in perspective overall view,
Fig. 2
1 is a partially sectioned plan view of a seat support of the chair of FIG. 1,
Fig. 3
a similar to FIG. 2, broken and not cut plan view of the seat support,
Fig. 4
a section along line IV-IV in Fig. 2,
Fig. 5
3 shows a section according to line VV in FIG. 2 in a position of a set screw that is further rotated in comparison to FIG. 4,
Fig. 6
3 is a plan view similar to FIG. 3 of the seat support, showing another portion thereof,
Fig. 7
a section along the line VII-VII in Fig. 6,
Fig. 8
7 similar section in another relative position of two seat support parts of the chair,
Fig. 9
2 similar to a plan view of a seat support of an alternative chair,
Fig. 10
a section along line XX in Fig. 9 and
Fig. 11
a section along line XI-XI in Fig. 10.

Fig. 1 zeigt einen Bürostuhl mit einem Stuhlgestell 1. Dieses ist mit einem Fußgestell 2 versehen, welches sich über Laufrollen 3 gegenüber dem Boden abstützt. Auf dem Fußgestell 2 ist eine höhenverstellbare Stuhlsäule 4 angebracht, an derem oberen Ende ein Sitzträger 5 befestigt ist. Letzterer ist zweiteilig ausgestaltet; er weist einen vorderen Sitzträgerteil 6, der auf der Stuhlsäule 4 befestigt ist, und einen hinteren Sitzträgerteil 7 auf, der oberhalb der Stuhlsäule 4 mittels eines um eine Schwenkachse 8 drehbaren Schwenkgelenks am vorderen Sitzträgerteil 6 angelenkt ist. Im vorderen Bereich des vorderen Sitzträgerteils 6 ist ein Tragrohr 9 befestigt, das parallel zur Schwenkachse 8 verläuft. Auf diesem Tragrohr 9 stützt sich ein Sitz 10 kurz hinter seiner Vorderkante 11 ab. Das Tragrohr 9 stellt daher einen vorderen Auflageabschnitt für den Sitz 10 dar. Der Sitz 10 stützt sich in seinem hinteren Bereich auf eine Stützachse 12 ab, die im hinteren Sitzträgerteil 7 gelagert ist. Die Stützachse 12 stellt daher einen hinteren Auflageabschnitt für den Sitz 10 dar. Am hinteren Sitzträgerteil 7 ist weiterhin eine Sitzneigungs-Verstelleinrichtung 13 angeordnet.Fig. 1 shows an office chair with a chair frame 1. This is with a Pedestal 2 provided, which is about rollers 3 with respect to the ground supported. On the pedestal 2 is a height-adjustable chair column. 4 attached, at whose upper end a seat support 5 is attached. The latter is designed in two parts; he has a front seat support part 6, the on the chair column 4 is fixed, and a rear seat support part 7, the above the chair column 4 by means of a rotatable about a pivot axis 8 Swivel joint is articulated on the front seat support part 6. In the front Area of the front seat support part 6, a support tube 9 is fixed, which is parallel to the pivot axis 8 extends. On this support tube 9 is based Seat 10 shortly behind its leading edge 11 from. The support tube 9 therefore represents a front support portion for the seat 10. The seat 10 is supported in its rear region on a support shaft 12 from the rear seat support part 7 is stored. The support shaft 12 therefore provides a rear support portion for the seat 10. At the rear seat support part 7 is still arranged a seat tilt adjustment 13.

Einstückig mit dem hinteren Sitzträgerteil 7 ist ein von diesem hochragender Rückenlehnen-Träger 14 ausgebildet, auf dem eine Rückenlehne 15 angebracht ist. Um deren Höhe relativ zum Sitz 10 verstellen zu können, ist eine Rückenlehnen-Höhenverstelleinrichtung 16 vorgesehen.Integral with the rear seat support part 7 is a towering from this Backrest support 14 is formed on which a backrest 15th is appropriate. In order to adjust their height relative to the seat 10, is a backrest height adjustment device 16 is provided.

Die geschilderte Ausgestaltung des Sitzträgers 5 mit der Anordnung des Sitzes 10 und der Rückenlehne 15 bildet eine sogenannte Synchron-Mechanik. Um die bei einem Verstellen oder beim Wippen durch einen Benutzer zu überwindenden Kräfte verändern zu können, ist eine insgesamt mit 17 bezeichnete Kraftveränderungs-Einrichtung vorgesehen, die noch im Einzelnen erläutert wird. Teil der Kraftveränderungs-Einrichtung 17 ist eine über den vorderen Sitzträgerteil 6 nach unten überstehende Stellmutter 18, von der in Fig. 1 eine frei drehbare Abdeckkappe 19 sichtbar ist. The described embodiment of the seat support 5 with the arrangement of Seat 10 and the backrest 15 forms a so-called synchronous mechanism. To those in an adjustment or when rocking by a To be able to change users to overcome forces is a total provided with 17 designated force variation device that still will be explained in detail. Part of the force changing device 17 is a over the front seat support member 6 downwardly projecting adjusting nut 18, of which in Fig. 1, a freely rotatable cap 19 is visible.

Benachbart zur Vorderkante 11 des Sitzes 10 auf den äußeren Enden des Tragrohrs 9 sind Armlehnen 20 angebracht. Von diesen ist in der Seitenansicht der Fig. 1 nur eine erkennbar.Adjacent to the leading edge 11 of the seat 10 on the outer ends of the Support tube 9 armrests 20 are attached. Of these is in the side view of Fig. 1 only one recognizable.

Die Stuhlsäule 4 weist zur Höhenverstellung des Sitzträgers 5 mit dem Sitz 10 und der Rückenlehne 15 eine bekannte längenverstellbare Gasfeder 21 auf, die in Fig. 3 in Aufsicht dargestellt ist. Die Gasfeder 21 ist in einer als Konus ausgebildeten Klemmeinrichtung 22 des vorderen Sitzträgerteils 6 klemmend gehalten. Aus der Gasfeder 21 ragt nach oben ein Ventilbetätigungsstift 23 heraus, bei dessen Einschieben in die Gasfeder 21 ein dort vorhandenes Ventil geöffnet wird, wodurch Längenverstellungen der Gasfeder 21 möglich werden. Derartige Gasfedern sind beispielsweise in der DE 18 12 282 C2 (entspricht US-Patent 3,656,593) dargestellt und beschrieben. Zur Betätigung des Ventilbetätigungsstifts 23 ist ein zweiarmiger Ventilbetätigungs-Hebel 24 vorgesehen, der sich schwenkbar gegen die Schwenkachse 8 abstützt, wie zum Beispiel in der DE 43 24 545 A1 beschrieben ist. Ein erster Hebelarm 25 des Ventil-Betätigungshebels 24 liegt gegen den Ventilbetätigungsstift 23 an, während der zweite Hebelarm 26 über eine aus der DE 43 24 545 A 1 bekannte Hebelmechanik betätigt werden kann.The chair column 4 has the height adjustment of the seat support 5 with the seat 10 and the backrest 15 a known length-adjustable gas spring 21st on, which is shown in Fig. 3 in plan view. The gas spring 21 is in a Cone formed clamping device 22 of the front seat support part. 6 held clamped. From the gas spring 21 projects upwards a valve actuating pin 23 out, when it is inserted into the gas spring 21 a there existing valve is opened, causing length adjustments of the gas spring 21 become possible. Such gas springs are for example in the DE 18 12 282 C2 (corresponding to US Pat. No. 3,656,593). To actuate the valve actuating pin 23 is a two-armed Valve operating lever 24 is provided, which pivotally against the Swivel axis 8 is supported, as described for example in DE 43 24 545 A1 is. A first lever arm 25 of the valve operating lever 24 is located against the valve actuating pin 23, while the second lever arm 26th be actuated by a known from DE 43 24 545 A 1 lever mechanism can.

Einer Verschwenkung des hinteren Sitzträgerteils 7 relativ zum vorderen Sitzträgerteil 6 der Synchron-Mechanik wirkt ein Kraftspeicher 27 entgegen, bei dem es sich im dargestellten Ausführungsbeispiel um eine vorgespannte Schrauben-Druckfeder 28 handelt. Diese stützt sich über ein insbesondere in den Fig. 2 und 5 dargestelltes schwenkbares Widerlager 29 gegen den vorderen Sitzträgerteil 6 in einem der Vorderkante 11 des Sitzes 10 benachbarten Bereich von diesem ab. Hierzu weist der Kraftspeicher 27 eine die Schrauben-Druckfeder 28 durchsetzende Führungsstange 30 auf. A pivoting of the rear seat support part 7 relative to the front Seat support part 6 of the synchronous mechanism counteracts an energy storage 27, which is in the illustrated embodiment, a biased Screw compression spring 28 is. This relies on a particular in Figs. 2 and 5 shown pivotable abutment 29 against the front seat support part 6 in one of the front edge 11 of the seat 10 adjacent area from this. For this purpose, the energy storage 27th a helical compression spring 28 passing through the guide rod 30.

Mit ihrem anderen Ende stützt sich die Schrauben-Druckfeder 28 gegen einen Gleitschuh 31 der Kraftveränderungs-Einrichtung 17 ab. Der Gleitschuh 31 wiederum liegt gegen eine Gleitfläche 32 an, die an einem ersten, kurzen Hebelarm 33 des hinteren Sitzträgerteils 7 ausgebildet ist. Der Hebelarm 33 ist einstückig mit dem hinteren Sitzträgerteil 7 ausgebildet und verläuft von der Schwenkachse 8 aus im Wesentlichen nach unten. Geometrisch ist insofern der hintere Sitzträgerteil 7 als Winkelhebel ausgebildet. Auf der Führungsstange 30 ist der Gleitschuh 31 längs der Schrauben-Druckfeder 28 verschiebbar. An einem dem Widerlager 29 entgegengesetzten Stellabschnitt 34 der Führungsstange 30 greift die Kraftveränderungs-Einrichtung 17 an. Ein sich an den Stellabschnitt 34 anschließender Verbindungsabschnitt 35 der Führungsstange 30 durchsetzt den ersten Hebelarm 33 des hinteren Sitzträgerteils 7. Gegenüber dem die Schrauben-Druckfeder 28 durchsetzenden Abschnitt der Führungsstange 30 ist der Verbindungsabschnitt 35 in Richtung auf das hintere Sitzträgerteil 7 zu abgewinkelt. Der Stellabschnitt 34 der Führungsstange 30 ist daher auf den hinteren Sitzträgerteil 7 zu abgekröpft und dem Sitzträger 5 benachbart angeordnet.With its other end, the compression coil spring 28 is supported against a shoe 31 of the force changing device 17 from. The sliding shoe 31 in turn abuts against a sliding surface 32, which at a first, short lever arm 33 of the rear seat support part 7 is formed. The lever arm 33 is integrally formed with the rear seat support member 7 and extends from the pivot axis 8 from substantially downwards. Geometric In this respect, the rear seat support part 7 is designed as an angle lever. On the guide rod 30 of the slide shoe 31 along the helical compression spring 28 movable. At one of the abutment 29 opposite Adjustment section 34 of the guide rod 30 engages the force changing device 17 on. A adjoining the adjusting portion 34 connecting portion 35 of the guide rod 30 passes through the first lever arm 33 of the rear seat support member 7. Opposite the screw compression spring 28 penetrating portion of the guide rod 30 is the Connecting portion 35 toward the rear seat support member 7 angled. The adjusting portion 34 of the guide rod 30 is therefore on the bent back seat support part 7 to and the seat support 5 adjacent arranged.

Teil der Kraftveränderungs-Einrichtung 17 ist eine Stellschraube 36, die am Stellabschnitt 34 der Führungsstange 30 über ein Schwenkgelenk mit Schwenkachse 37 schwenkbar angelenkt ist.Part of the force changing device 17 is an adjusting screw 36, the on the adjusting portion 34 of the guide rod 30 via a pivot joint with Swivel axis 37 is pivotally articulated.

Der Abstand zwischen der Schwenkachse 8 zwischen den Sitzträgerteilen 6, 7 einerseits und der Mittelachse der Schrauben-Druckfeder 28 andererseits ist in Fig. 5 mit a bezeichnet.The distance between the pivot axis 8 between the seat support parts 6, 7 on the one hand and the central axis of the helical compression spring 28 on the other is designated in Fig. 5 with a.

Die Stellschraube 36 greift in die Stellmutter 18 ein, die in einer unteren Wand 38 des vorderen Sitzträgerteils 6 drehbar, aber in Richtung der Stellschraube 36 unverschiebbar gelagert ist. Am der Abdeckkappe 19 gegenüberliegenden Ende weist die Stellmutter 18 einen geradverzahnten Kegelabschnitt 39 auf. In den Zahnkranz von diesem greift ein ebenfalls geradverzahnter Kegelabschnitt 40 eines Endabschnitts 41 eines Betätigungs-Drehgriffs 42 ein. Die beiden Kegelabschnitte 39, 40 bilden somit ein geradverzahntes Kegelradgetriebe. Eine Drehachse 43 der Stellschraube 36 und eine Drehachse 44 des Betätigungs-Drehgriffs 42 fluchten nicht miteinander, sondern schneiden sich und schließen miteinander einen rechten Winkel ein. Der Endabschnitt 41 ist in einer Seitenwand 45 des vorderen Sitzträgerteils 6 drehbar, aber axial zur Drehachse 44 des Betätigungs-Drehgriffs 42 unverschiebbar gelagert.The adjusting screw 36 engages in the adjusting nut 18, which in a lower Wall 38 of the front seat support member 6 rotatably, but in the direction of the screw 36 is mounted immovably. On the cap 19 opposite End, the adjusting nut 18 has a straight toothed conical section 39 on. In the sprocket of this engages a likewise straight toothed Cone portion 40 of an end portion 41 of an actuating rotary handle 42 on. The two cone sections 39, 40 thus form a straight-toothed Bevel gear. A rotation axis 43 of the adjusting screw 36 and an axis of rotation 44 of the actuating rotary handle 42 are not aligned with each other, but intersect and close a right one with each other Angle. The end portion 41 is in a side wall 45 of the front Seat support part 6 rotatably, but axially to the axis of rotation 44 of the actuating rotary handle 42 immovably stored.

Das freie Ende des Betätigungs-Drehgriffs 42 ist als ovaler Handgriff 46 mit Griffmulden 47 ausgebildet. Der Handgriff 46 weist eine zentrale Bohrung 48 auf, die am freien Ende des Handgriffs 46 durch eine eingedrückte Verschlusskappe 49 verschlossen ist. In die Bohrung eingeführt ist eine Verbindungsschraube 50, welche den Handgriff 46 am Endabschnitt 41 des Betätigungs-Drehgriffs 42 haltert.The free end of the actuating rotary handle 42 is as an oval handle 46th formed with recessed grips 47. The handle 46 has a central bore 48, which at the free end of the handle 46 by a depressed Cap 49 is closed. Introduced into the hole is a Connecting screw 50, which the handle 46 at the end portion 41 of Actuator rotary handle 42 holds.

Bei einer Drehung des Betätigungs-Drehgriffs 42 wird diese Drehung über die ineinandergreifenden Kegelabschnitte 39, 40 in eine axiale Stellbewegung der Stellschraube 36 längs der Drehachse 43 überführt. Die Kegelabschnitte 39, 40 stellen daher ein Kupplungs-Element dar, über welches der Betätigungs-Drehgriff 42 mit der Stellschraube 36 als Stell-Element verbunden ist. Bei einer Drehung des Betätigungs-Drehgriffs 42 wird daher über das Schwenkgelenk mit der Schwenkachse 37 die Führungsstange 30 um das Schwenkgelenk des Widerlagers 29 verschwenkt. Der Gleitschuh 31 wird hierbei auf der Gleitfläche 32 des ersten Hebelarms 33 verschoben, wodurch sich der Abstand a der Achse des Kraftspeichers 27 von der Schwenkachse 8 ändert. Da die Gleitfläche 32 zumindest angenähert auf einem Kreisbogenabschnitt liegt, dessen Mittelpunkt oberhalb der Achse des Schwenkgelenks des Wiederlagers 29 gebildet wird, ändert sich bei einer Verdrehung des Betätigungs-Drehgriffs 42 ein Abstand b zwischen der Schwenkachse des Widerlagers 29 und der Durchdringung der Achse des Kraftspeichers 27 durch die Gleitfläche 32 nur gering. Daher ändert sich bei derartigen Verstellungen die Vorspannung der Schrauben-Druckfeder 28 praktisch nicht. Durch die oben beschriebene leichte Dezentrierung der Gleitfläche 32 zum durch das Widerlager 29 gebildeten Schwenkgelenk wird erreicht, dass an der Stellschraube 36 immer eine durch die Schrauben-Druckfeder 28 vermittelte Zugkraft anliegt. Dies führt dazu, dass die Stellschraube 36 in der Stellmutter 18 immer definiert derart geführt ist, dass die in Fig. 5 obenliegenden Gewindeflanken des Gewindes der Stellschraube 36 an den entsprechenden Gewindeflanken des Innengewindes der Stellmutter 18 anliegen.Upon rotation of the actuating knob 42, this rotation is over the interlocking cone portions 39, 40 in an axial adjusting movement the adjusting screw 36 along the axis of rotation 43 transferred. The cone sections 39, 40 therefore represent a coupling element, over which the Actuating rotary handle 42 connected to the screw 36 as a control element is. Upon rotation of the actuating knob 42 is therefore via the pivot joint with the pivot axis 37, the guide rod 30th pivoted about the pivot joint of the abutment 29. The sliding shoe 31 is thereby displaced on the sliding surface 32 of the first lever arm 33, whereby the distance a of the axis of the energy storage 27 of the Swivel axis 8 changes. Since the sliding surface 32 at least approximately a circular arc section lies whose center above the axis the pivot joint of the abutment 29 is formed, changes at a rotation of the actuating rotary handle 42 a distance b between the pivot axis of the abutment 29 and the penetration of the axis of the energy storage 27 by the sliding surface 32 only slightly. Therefore changes in such adjustments, the bias of the coil compression spring 28 practically not. By the above-described slight decentering the sliding surface 32 formed by the abutment 29 Swivel joint is achieved that on the screw 36 is always a transmitted by the compression coil spring 28 mediated tensile force. this leads to to that the set screw 36 in the adjusting nut 18 always defined in such a way is guided, that in Fig. 5 overhead thread flanks of the thread the adjusting screw 36 to the corresponding thread flanks of the internal thread the adjusting nut 18 abut.

Die von der Schrauben-Druckfeder 28 auf den ersten Hebelarm 33 des hinteren Sitzträgerteils 7 wirkende Kraft wird also nicht verändert; es wird lediglich durch Veränderung des Abstands a zwischen der Achse des Kraftspeichers 27 und der Schwenkachse 8 der wirksame Hebelarm, das heißt insgesamt das von der Schrauben-Druckfeder 28 auf den hinteren Sitzträgerteil 7 und damit auf den Sitz 10 und die Rückenlehne 15 wirkende Drehmoment, verändert. Dieses Drehmoment wird umso kleiner, je kleiner der Abstand a ist und umgekehrt. Die am Betätigungs-Drehgriff 42 aufzubringenden Verstellkräfte über den gesamten Verstellweg des Gleitschuhs 31 können konstant gehalten werden, da sich Reibungskräfte zwischen dem Gleitschuh 31 und der Gleitfläche 32 und auch die Betätigungskräfte der mechanischen Kupplung zwischen der Führungsstange 30 und dem Betätigungs-Drehgriff 42 praktisch nicht ändern. The of the helical compression spring 28 on the first lever arm 33 of the rear Seat support part 7 acting force is therefore not changed; it will merely by changing the distance a between the axis of Force accumulator 27 and the pivot axis 8 of the effective lever arm, the Overall, that is from the helical compression spring 28 on the rear Seat support part 7 and thus on the seat 10 and the backrest 15 acting Torque, changed. This torque becomes smaller, the smaller the distance is a and vice versa. The on the actuating handle 42nd applied adjusting forces over the entire adjustment of the shoe 31 can be kept constant, as frictional forces between the shoe 31 and the sliding surface 32 and also the actuating forces the mechanical coupling between the guide rod 30 and the actuating knob 42 practically do not change.

Um die gemeinsame Verschwenkbarkeit des Sitzes 10 und der Rückenlehne 15 bei der Synchro-Mechanik gegen die Kraft der Schrauben-Druckfeder 28 ausschalten zu können, ist eine in den Fig. 6 bis 8 dargestellte Verriegelungseinrichtung 50 vorgesehen. Die Verriegelungseinrichtung 50 umfasst einen Riegel 51, der am vorderen Sitzträgerteil 6 um ein Schwenkgelenk mit Schwenkachse 52 verschwenkbar angelenkt ist. Die Schwenkachse 52 fällt mit derjenigen des Widerlagers 29 im Wesentlichen zusammen. An seinem freien, von der Schwenkachse 52 abgewandten Ende weist der Riegel 51 einen horizontal angeordneten Riegelbolzen 53 auf, der am Riegel 51 festgelegt ist und diesen derart durchtritt, dass er zu beiden Seiten über den Riegel 51 in horizontaler Richtung übersteht.To the joint pivoting of the seat 10 and the backrest 15 in the synchro-mechanics against the force of the helical compression spring To be able to switch off 28 is one shown in FIGS. 6 to 8 Locking device 50 is provided. The locking device 50 includes a latch 51, which at the front seat support part 6 to a Swivel joint with pivot axis 52 is pivoted. The Pivot axis 52 substantially coincides with that of abutment 29 together. At its free, remote from the pivot axis 52 end the bolt 51 has a horizontally arranged locking bolt 53, which is fixed to the bolt 51 and passes through it in such a way that it leads to both Sides over the bar 51 in the horizontal direction.

Teil der Verriegelungseinrichtung 50 ist ein mit dem Riegel 51 zusammenarbeitender Gegenkörper 54. Dieser ist am vorderen Sitzträgerteil 6 um ein Schwenkgelenk mit Schwenkachse 55 verschwenkbar angelenkt. Die Schwenkachsen 52, 55 sind zueinander beabstandet und parallel. Der Gegenkörper 54 weist zwei zueinander beabstandete, parallele, vertikale und senkrecht zur Schwenkachse 55 angeordnete Platten 56 auf. Diese haben in grober Näherung eine dreiecksförmige Gestalt, wobei die der Schwenkachse 55 gegenüberliegende Seite als Riegel-Umfangsabschnitt 57 angenähert auf einen Kreisbogenabschnitt liegt, dessen Mittelpunkt durch die Schwenkachse 55 gebildet wird.Part of the locking device 50 is a cooperating with the latch 51 Counter body 54. This is on the front seat support part 6 to a Swivel joint with pivot axis 55 pivotally articulated. The Swivel axes 52, 55 are spaced apart and parallel. The counterbody 54 has two spaced apart, parallel, vertical and Plates 56 arranged perpendicular to the pivot axis 55. These have in rough approximation, a triangular shape, wherein the pivot axis 55 opposite side as a bar-peripheral portion 57 approximated is located on a circular arc section whose center through the Swivel axis 55 is formed.

Im Riegel-Umfangsabschnitt 57 der Platten 56 sind jeweils vier im Wesentlichen halbkreisförmige Riegelaufnahmen 58 ausgebildet, wobei jeweils zwei Riegelaufnahmen in je einer der Platten 56 paarweise miteinander fluchten. Die Weite der Riegelaufnahmen 58 ist komplementär zum Riegelbolzen 53 des Riegels 51 derart bemessen, dass der Riegelbolzen 53 im Wesentlichen spielfrei in ein Paar von Riegelaufnahmen 58 eingreifen kann. Dieser Eingriff des Riegelbolzens 53 in die Riegelaufnahmen 58 erfolgt derart, dass jeweils eines der beiden freien Enden des Riegelbolzens 53 in eine der beiden Riegelaufnahmen 58 des entsprechenden Paares von Riegelaufnahmen 58 eingreift.In the latch peripheral portion 57 of the plates 56, four are each substantially semi-circular latch receptacles 58 formed, wherein in each case two bolt receptacles in each one of the plates 56 in pairs with each other aligned. The width of the bolt receptacles 58 is complementary to Lock bolt 53 of the bolt 51 dimensioned such that the locking bolt 53rd engage substantially free of play in a pair of bolt receptacles 58 can. This engagement of the locking bolt 53 takes place in the bolt receptacles 58 such that in each case one of the two free ends of the locking bolt 53 in one of the two bolt receptacles 58 of the corresponding pair of Lock receptacles 58 engages.

Über ein Schwenkgelenk mit Schwenkachse 59 ist am Gegenkörper 54 als Kupplungselement ein Verbindungsglied 60 angelenkt. Die Schwenkachsen 55 und 59 sind zueinander beabstandet und parallel. Über ein weiteres Schwenkgelenk mit Schwenkachse 61 ist das Verbindungsglied 60 am ersten, kurzen Hebelarm 33 des hinteren Sitzträgerteils 7 angelenkt. Die Schwenkachse 61 ist hierbei zu den Schwenkachsen 8 und 59 parallel und zu diesen beabstandet.About a pivot joint with pivot axis 59 is on the counter body 54 as Coupling element articulated a connecting member 60. The pivot axes 55 and 59 are spaced apart and parallel. About another Swivel joint with pivot axis 61 is the connecting member 60 at the first, short lever arm 33 of the rear seat support part 7 hinged. The Pivot axis 61 is in this case parallel to the pivot axes 8 and 59 and spaced apart from these.

Über einen Kupplungsbolzen 62, der mittels eines Auflagebocks am vorderen Sitzträgerteil 6 befestigt ist, kann der Riegel 51 mittels eines seitlich aus dem Tragrohr 9 herausgeführten Betätigungsgriff 63 betätigt werden, der in Fig. 1 dargestellt ist.Via a coupling pin 62, which by means of a support bracket at the front Seat support part 6 is fixed, the latch 51 by means of a laterally be actuated from the support tube 9 led out handle 63, which is shown in Fig. 1.

Fig. 7 zeigt die Verriegelungseinrichtung 50 in einer Stellung, bei der der Riegelbolzen 53 der in der Seitenansicht der Fig. 7 und 8 am weitesten links dargestellten Riegelaufnahme 58 zugeordnet ist. In dieser Stellung ist der hintere Sitzträgerteil 7 mit dem Rückenlehnen-Träger 14 in der am weitesten aufrechten Position.Fig. 7 shows the locking device 50 in a position in which the Lock bolt 53 in the side view of Figs. 7 and 8 furthest Left illustrated latch receptacle 58 is assigned. In this position is the rear seat support member 7 with the backrest support 14 in the furthest upright position.

Fig. 8 zeigt die Verriegelungseinrichtung 50 in einer Stellung, bei der der Riegelbolzen 53 der in den Fig. 7 und 8 am weitesten rechts dargestellten Riegelaufnahme 58 zugeordnet ist. In dieser Stellung ist der hintere Sitzträgerteil 7 mit dem Rückenlehnen-Träger 14 am weitesten nach hinten in eine Liegeposition geneigt.Fig. 8 shows the locking device 50 in a position in which the Latch bolt 53 of FIGS. 7 and 8 furthest to the right Latch receptacle 58 is assigned. In this position, the rear seat support part 7 with the backrest support 14 furthest back in a lying position inclined.

Da der Abstand zwischen den Schwenkachsen 8 und 61 größer ist als derjenige zwischen den Schwenkachsen 55 und 59, führt eine Verschwenkung des hinteren Sitzträgerteils 7 um die Schwenkachse 8 zu einer im Verhältnis dieser Abstände zueinander größeren Verschwenkung des Gegenkörpers 54 um die Schwenkachse 55. Das Verbindungsglied 60 wirkt daher als mechanisches Übersetzungsglied, welches die Verschwenkung des Gegenkörpers 54 im Verhältnis zur Verschwenkung des hinteren Sitzträgerteils 7 übersetzt.Since the distance between the pivot axes 8 and 61 is greater than that between the pivot axes 55 and 59, performs a pivoting the rear seat support part 7 about the pivot axis 8 to a relative these distances to each other greater pivoting of the counter body 54 about the pivot axis 55. The connecting member 60 therefore acts as mechanical translation member, which is the pivoting of the counter body 54 in relation to the pivoting of the rear seat support part. 7 translated.

Im Normalfall ist die Verriegelungseinrichtung 50 außer Funktion, so dass eine Synchron-Relativbewegung zwischen den Sitzträgerteilen 6, 7 ermöglicht ist. Wenn der Benutzer die Synchron-Mechanik außer Kraft setzt, also die Sitzträgerteile 6, 7 gegeneinander verriegeln will, bringt er zunächst durch entsprechenden Druck auf die Rückenlehne 15 und damit über den Rückenlehnen-Träger 14 auf das hintere Sitzträgerteil 7 letzteres in eine gewünschte Relativposition zum vorderen Sitzträgerteil 6. In Anschluss daran betätigt der Benutzer den Betätigungsgriff 63 und bewegt den Riegelbolzen 53 in Richtung auf den Riegel-Umfangsabschnitt 57 zu. Der Riegelbolzen 53 kommt dann entweder sofort mit der ihm benachbarten Riegelaufnahme 58 in Eingriff oder der Benutzer führt noch eine Feinverstellung der Sitzträgerteile 6, 7 zueinander durch entsprechenden Druck auf die Rückenlehne 15 durch, bis der Riegelbolzen 53 in das entsprechende Paar von Riegelaufnahmen 58 einrückt. Sobald dies geschehen ist, ist die Synchron-Mechanik in der gewünschten Relativposition der Sitzträgerteile 6, 7 zueinander verriegelt. Das Verbindungsglied 60 gewährleistet durch seine Übersetzungsfunktion hierbei, dass trotz des nicht zu geringen Abstandes der Riegelaufnahmen 58 in Umfangsrichtung des Riegel-Umfangsabschnitts 57 zueinander eine feine Abstufung diskreter Relativpositionen der Sitzträgerteile 6, 7 gegeben ist.Normally, the locking device 50 is disabled, so that a synchronous relative movement between the seat support parts 6, 7 allows is. If the user overrides the synchronous mechanism, ie the seat support parts 6, 7 wants to lock against each other, he brings first by appropriate pressure on the backrest 15 and thus on the Backrest support 14 on the rear seat support part 7 latter in one desired relative position to the front seat support part 6. In connection the user actuates the operating handle 63 and moves the locking bolt 53 in the direction of the bolt peripheral portion 57 to. Of the Latch bolt 53 then comes either immediately with his neighbor Bolt receptacle 58 engaged or the user still performs a fine adjustment the seat support parts 6, 7 to each other by appropriate pressure on the backrest 15 by until the locking bolt 53 in the corresponding Pair of bolt receptacles 58 engages. Once this is done, that is the synchronous mechanism in the desired relative position of the seat support parts 6, 7 locked to each other. The connecting member 60 ensures by its translation function here, that despite the not too small Distance of the bolt receptacles 58 in the circumferential direction of the bolt peripheral portion 57 to each other a fine gradation of discrete relative positions the seat support parts 6, 7 is given.

Fig. 5 bis 8 sowie 10 und 11 zeigen Details der Sitzneigungs-Verstelleinrichtung 13. Zur Sitzneigungs-Verstellung ist die Höhe der Stützachse 12, auf der sich der hintere Bereich des Sitzes abstützt, verstellbar. Die Stützachse 12 wird hierzu von einem ersten Hebelarm 70 eines Neigungsverstellhebels 71 getragen, der um eine zur Schwenkachse 8 parallele Schwenkachse 72 verschwenkbar ist. An einem zweiten Hebelarm 73 ist über ein Schwenkgelenk mit ebenfalls zur Schwenkachse 8 paralleler Schwenkachse 74 eine Neigungs-Stellschraube 75 angelenkt. Diese ist axial verschiebbar und drehfest gelagert. Die Neigungs-Stellschraube 75 greift in eine Neigungs-Stellmutter 76 ein, die in einer unteren Wand 77 des hinteren Sitzträgerteils 7 drehbar, aber in Richtung der Neigungs-Stellschraube 75 unverschiebbar gelagert ist. Am der Schwenkachse 74 gegenüberliegenden Ende weist die Neigungs-Stellmutter 76 einen geradverzahnten Kegelabschnitt 78 auf. In den Zahnkranz von diesem greift ein ebenfalls geradverzahnter Kegelabschnitt 79 eines Endabschnitts 80 eines Neigungs-Betätigungs-Drehgriffs 81 ein. Die beiden Kegelabschnitte 78, 79 bilden somit ein geradverzahntes Kegelradgetriebe. Eine Drehachse 82 der Stellschraube 75 und eine Drehachse 83 des Neigungs-Betätigungs-Drehgriffs 81 fluchten nicht miteinander, sondern schneiden sich und schließen miteinander einen rechten Winkel ein. Die Drehachsen 44 und 83 der Betätigungs-Drehgriffe 42 und 81, die auf der gleichen Seite über den Sitzträger 5 überstehen, sind zueinander parallel. Der Endabschnitt 80 ist in einer Seitenwand 84 eines Gehäuses 85, welches am hinteren Sitzträgerteil 7 befestigt ist, drehbar, aber axial zur Drehachse 83 des Neigungs-Betätigungs-Drehgriffs 81 unverschiebbar gelagert. Figs. 5 to 8 and Figs. 10 and 11 show details of the seat tilt adjusting device 13. For seat tilt adjustment, the height of the support axle 12, on which the rear portion of the seat is supported, adjustable. The support axis 12 is for this purpose by a first lever arm 70 of a Neigungsverstellhebels 71, which is parallel to the pivot axis 8 Swivel axis 72 is pivotable. At a second lever arm 73 is via a pivot joint with also to the pivot axis 8 parallel Swivel axis 74 a tilt adjustment screw 75 hinged. This is axial slidably and non-rotatably mounted. The tilt adjustment screw 75 engages in a tilt adjusting nut 76, which in a lower wall 77 of the rear Seat support part 7 rotatable, but in the direction of the tilt adjustment screw 75 is mounted immovably. At the pivot axis 74 opposite End, the tilt adjusting nut 76 has a spur gear Cone section 78 on. In the sprocket of this attacks a likewise straight toothed cone portion 79 of an end portion 80 of a Tilt actuation rotary handle 81 a. The two cone sections 78, 79 thus form a straight bevel gear. A rotation axis 82 the set screw 75 and a rotation axis 83 of the tilt-actuated rotary handle 81 do not curse with each other, but intersect and enclose a right angle with each other. The axes of rotation 44 and 83 the actuating handles 42 and 81, on the same side over the Seat support 5 survive, are parallel to each other. The end portion 80 is in a side wall 84 of a housing 85 which on the rear seat support part 7 is rotatable, but axially to the axis of rotation 83 of the tilt actuation rotary handle 81 immovably stored.

Das freie Ende des Neigungs-Betätigungs-Drehgriffs 81 ist wie dasjenige des Betätigungs-Drehgriffs 42 als ovaler Handgriff 46 ausgestaltet, sodass auf die diesbezügliche Beschreibung des Betätigungs-Drehgriffs 42 verwiesen werden kann.The free end of the tilt actuation knob 81 is like that of the actuating rotary handle 42 configured as an oval handle 46, so refer to the relevant description of the actuating rotary handle 42 can be.

Bei einer Drehung des Neigungs-Betätigungs-Drehgriffs 81 wird diese Drehung über die ineinandergreifenden Kegelabschnitte 78, 79 in eine axiale Stellbewegung der Stellschraube 75 längs der Drehachse 82 überführt. Die Kegelabschnitte 78, 79 stellen daher ein Kupplungselement dar, über welches der Neigungs-Betätigungs-Drehgriff 81 mit der Stellschraube 75 als Stell-Element verbunden ist. Bei einer Drehung des Neigungs-Betätigungs-Drehgriffs 81 wird daher über das Schwenkgelenk mit der Schwenkachse 74 der Neigungs-Verstellhebel 71 um die Schwenkachse 72 verschwenkt. Hierdurch wird die Höhe der Stützachse 12 über dem Boden und damit die Neigung des Sitzes 10 eingestellt. Je höher die Stützachse 12 eingestellt ist, desto stärker ist der Sitz 10 in Richtung seiner Vorderkante 11 nach unten geneigt.Upon rotation of the tilt-operation rotary handle 81, this becomes Rotation over the intermeshing cone portions 78, 79 in an axial Adjusting movement of the adjusting screw 75 along the axis of rotation 82 transferred. The cone sections 78, 79 therefore represent a coupling element, via which the tilt-actuated rotary handle 81 with the screw 75th connected as a control element. Upon rotation of the tilt actuation knob 81 is therefore on the pivot joint with the Pivot axis 74 of the tilt adjustment lever 71 about the pivot axis 72nd pivoted. As a result, the height of the support shaft 12 above the ground and thus adjusted the inclination of the seat 10. The higher the support axis 12 is set, the stronger is the seat 10 in the direction of its leading edge 11 inclined downwards.

Bei einer nicht dargestellten weiteren Ausführungsform erfolgt eine mechanische Kupplung der Drehbewegungen des Betätigungs-Drehgriffs 42 um die Drehachse 44 einerseits und der Stellschraube 36 um die Drehachse 43 andererseits nicht durch ein Kegelradgetriebe, sondern durch eine flexible Welle, insbesondere eine Feder-Welle. Derartige flexible Wellen zur Kraftübertragung sind bekannt. Mit einer solchen flexiblen Welle kann auch eine mechanische Kupplung der Drehbewegungen des Neigungs-Betätigungs-Drehgriffs 81 um die Drehachse 83 einerseits und der Stellschraube 75 um die Drehachse 82 andererseits erfolgen.In a further embodiment, not shown, a mechanical Coupling the rotational movements of the actuating rotary handle 42 about the axis of rotation 44 on the one hand and the adjusting screw 36 about the axis of rotation 43 on the other hand not by a bevel gear, but by a flexible Wave, in particular a spring shaft. Such flexible waves for Power transmission are known. With such a flexible shaft can also a mechanical coupling of the rotational movements of the tilt actuation rotary handle 81 about the axis of rotation 83 on the one hand and the set screw 75 take place about the axis of rotation 82 on the other.

Claims (6)

Stuhl, insbesondere Bürostuhl, mit einem Fußgestell (2), mit einem darauf mittels einer Stuhlsäule (4) abgestützten Sitzträger (5), der einen vorderen Sitzträgerteil (6) und einen mit diesem über eine im Wesentlichen horizontal verlaufende Schwenkachse (8) verbundenen und relativ zu diesem um die Schwenkachse (8) verschwenkbaren, hinteren Sitzträgerteil (7) aufweist, mit einem auf den Sitzträgerteilen (6, 7) abgestützten Sitz (10), mit einer an dem hinteren Sitzträgerteil (7) befestigten Rückenlehne (15), mit einem an den Sitzträgerteilen (6, 7) im Abstand von ihrer Schwenkachse (8) angelenkten, längenverstellbaren Kraftspeicher (27) zur gegenseitigen Verstellung von Rückenlehne (15) und Sitz (10), mit einer Verriegelungseinrichtung (50) zur Verriegelung des vorderen Sitzträgerteils (6) relativ zum hinteren Sitzträgerteil (7),
dadurch gekennzeichnet, dass die Verriegelungseinrichtung (50) derart ausgebildet ist, dass durch sie eine Mehrzahl von Verriegelungspositionen des vorderen Sitzträgerteils (6) relativ zum hinteren Sitzträgerteil (7) vorgebbar ist. Chair, especially office chair, with a pedestal (2), with a seat support (5) supported thereon by means of a chair column (4), having a front seat support part (6) and a rear pivot connected thereto via a substantially horizontally extending pivot axis (8) and pivotable relative thereto about the pivot axis (8) Having seat carrier part (7), with a seat (10) supported on the seat support parts (6, 7), with a backrest (15) attached to the rear seat support part (7), with a length-adjustable energy store (27), articulated on the seat support parts (6, 7) at a distance from its pivot axis (8), for the mutual adjustment of the backrest (15) and the seat (10), with a locking device (50) for locking the front seat support part (6) relative to the rear seat support part (7),
characterized in that the locking device (50) is designed such that a plurality of locking positions of the front seat support part (6) relative to the rear seat support part (7) can be predetermined by it. Stuhl nach Anspruch 1, gekennzeichnet durch eine Verriegelungseinrichtung (50) mit einer Mehrzahl diskreter Verriegelungspositionen.Chair according to claim 1, characterized by a locking device (50) with a plurality of discrete locking positions. Stuhl nach Anspruch 2, dadurch gekennzeichnet, dass die Verriegelungseinrichtung (50) einen Riegel (51) sowie einen Gegenkörper (54) mit einer Mehrzahl von Riegelaufnahmen (58) aufweist. Chair according to claim 2, characterized in that the locking device (50) has a bolt (51) and a counter-body (54) with a plurality of bolt receptacles (58). Stuhl nach Anspruch 3, dadurch gekennzeichnet, dass die Riegelaufnahmen (58) in einem zumindest halbkreisförmigen Umfangsabschnitt (57) des Gegenkörpers (54) ausgebildet sind, wobei die Verriegelungseinrichtung (50) derart ausgebildet ist, dass der Riegel (51) und der Gegenkörper (54) bei der Verschwenkung des vorderen Sitzträgerteils (6) zum hinteren Sitzträgerteil (7) eine Relativbewegung um eine koaxial zum Umfangsabschnitt (57) angeordnete Achse (55) durchführen.Chair according to claim 3, characterized in that the bolt receptacles (58) in an at least semicircular peripheral portion (57) of the counter body (54) are formed, wherein the locking device (50) is formed such that the bolt (51) and the counter body ( 54) during the pivoting of the front seat support part (6) to the rear seat support part (7) perform a relative movement about a coaxial with the peripheral portion (57) arranged axis (55). Stuhl nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass der Gegenkörper (54) und/oder der Riegel (51) an einer Schwenkachse (55) derart an einem Stuhlträgerteil (6) angelenkt ist, dass er bei einer Verschwenkung des vorderen Stuhlträgerteils (6) zum hinteren Stuhlträgerteil (7) um die Schwenkachse (55) verschwenkt wird.Chair according to claim 3 or 4, characterized in that the counter body (54) and / or the bolt (51) on a pivot axis (55) is articulated to a chair support member (6) such that it upon pivoting of the front chair support member (6 ) is pivoted to the rear chair support part (7) about the pivot axis (55). Stuhl nach Anspruch 5, dadurch gekennzeichnet, dass die Schwenkachse (8) des vorderen Stuhlträgerteils (6) zum hinteren Stuhlträgerteil (7) einerseits und die Schwenkachse (55) des Gegenkörpers (54) und/oder des Riegels (51) zum Stuhlträgerteil (6) andererseits nicht zusammenfallen, wobei ein Kupplungselement (60) vorgesehen ist, welches die Verschwenkung des Gegenkörpers (54) und/oder des Riegels (51) zum Stuhlträgerteil (6) gegenüber der Verschwenkung des vorderen Stuhlträgerteils (6) zum hinteren Stuhlträgerteil (7) übersetzt.Chair according to claim 5, characterized in that the pivot axis (8) of the front chair support part (6) to the rear chair support part (7) on the one hand and the pivot axis (55) of the counter body (54) and / or the bolt (51) to the chair support part (6 ) on the other hand do not coincide, wherein a coupling element (60) is provided, which the pivoting of the counter body (54) and / or the bolt (51) to the chair support part (6) against the pivoting of the front chair support part (6) to the rear chair support part (7) translated.
EP04004811A 2003-03-07 2004-03-02 Chair, particularly office-chair Expired - Lifetime EP1454568B1 (en)

Priority Applications (1)

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PL04004811T PL1454568T3 (en) 2003-03-07 2004-03-02 Chair, particularly office-chair

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DE10309922A DE10309922A1 (en) 2003-03-07 2003-03-07 Chair, especially office chair
DE10309920 2003-03-07
DE10309920A DE10309920A1 (en) 2003-03-07 2003-03-07 Chair, especially office chair
DE10309921A DE10309921A1 (en) 2003-03-07 2003-03-07 Chair, especially office chair

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EP1454568A2 true EP1454568A2 (en) 2004-09-08
EP1454568A3 EP1454568A3 (en) 2005-01-19
EP1454568B1 EP1454568B1 (en) 2008-07-02

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EP04004811A Expired - Lifetime EP1454568B1 (en) 2003-03-07 2004-03-02 Chair, particularly office-chair
EP04004812A Expired - Lifetime EP1454566B1 (en) 2003-03-07 2004-03-02 Chair, particularly office chair

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EP (3) EP1454569B1 (en)
CN (3) CN100486483C (en)
AT (3) ATE399490T1 (en)
DE (6) DE10309920A1 (en)
DK (3) DK1454569T3 (en)
ES (3) ES2255691T3 (en)
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Also Published As

Publication number Publication date
HK1069296A1 (en) 2005-05-20
EP1454568B1 (en) 2008-07-02
ATE338492T1 (en) 2006-09-15
ZA200401853B (en) 2004-09-08
DE10309922A1 (en) 2004-09-16
ZA200401855B (en) 2004-09-08
US7036882B2 (en) 2006-05-02
US6945603B2 (en) 2005-09-20
CN1526345A (en) 2004-09-08
DK1454566T3 (en) 2007-01-15
US20040174059A1 (en) 2004-09-09
EP1454569A1 (en) 2004-09-08
ZA200401854B (en) 2004-09-08
ATE399490T1 (en) 2008-07-15
PL1454568T3 (en) 2008-12-31
CN1526347A (en) 2004-09-08
DE10309921A1 (en) 2004-09-16
DE502004007465D1 (en) 2008-08-14
EP1454566A1 (en) 2004-09-08
ES2273107T3 (en) 2007-05-01
EP1454566B1 (en) 2006-09-06
DE502004000132D1 (en) 2005-12-22
ATE309721T1 (en) 2005-12-15
US20040212235A1 (en) 2004-10-28
DK1454568T3 (en) 2008-10-27
DK1454569T3 (en) 2006-03-20
CN100486482C (en) 2009-05-13
HK1069298A1 (en) 2005-05-20
DE10309920A1 (en) 2004-09-16
CN100486483C (en) 2009-05-13
US20040174057A1 (en) 2004-09-09
DE502004001375D1 (en) 2006-10-19
ES2255691T3 (en) 2006-07-01
ES2309407T3 (en) 2008-12-16
EP1454569B1 (en) 2005-11-16
PL1454566T3 (en) 2007-01-31
CN1526346A (en) 2004-09-08
EP1454568A3 (en) 2005-01-19

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