EP2298132B1 - Seating furniture, in particular rotating office chair - Google Patents
Seating furniture, in particular rotating office chair Download PDFInfo
- Publication number
- EP2298132B1 EP2298132B1 EP09011822.5A EP09011822A EP2298132B1 EP 2298132 B1 EP2298132 B1 EP 2298132B1 EP 09011822 A EP09011822 A EP 09011822A EP 2298132 B1 EP2298132 B1 EP 2298132B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seat
- carrier
- seating furniture
- item
- backrest
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 230000001419 dependent effect Effects 0.000 description 5
- 238000004146 energy storage Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 210000002414 leg Anatomy 0.000 description 2
- 235000003332 Ilex aquifolium Nutrition 0.000 description 1
- 241000209027 Ilex aquifolium Species 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
- A47C1/023—Reclining or easy chairs having independently-adjustable supporting parts the parts being horizontally-adjustable seats ; Expandable seats or the like, e.g. seats with horizontally adjustable parts
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
- A47C1/03274—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs of torsion type
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/02—Seat parts
- A47C7/029—Seat parts of non-adjustable shape adapted to a user contour or ergonomic seating positions
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
Definitions
- the invention relates to a chair, in particular a chair, according to the preamble of patent claim 1.
- Such a piece of furniture is for example from the DE 198 23 632 C1 known.
- an energy accumulator in the form of a tension spring is formed, which is biased under load of the seat, so that this bias is dependent on the weight of the seated person. Since the backrest and thus the backrest is tilted against the action of the energy storage, thus the restoring force for the backrest is also dependent on the weight.
- the weight force is not effectively utilized in the known device, since in this device, the load of the force accumulator takes place over the front region of the seat, that is, the thigh area of the seated person.
- the present invention seeks to provide a chair with weight-dependent restoring force for the backrest, which is characterized by a simple structure and with which the weight can be used efficiently.
- the invention deviating from the known principle of biasing the energy storage by the weight of the seated person, and it is proposed in contrast, implement a tilting movement of the backrest and thus the backrest support in a lifting movement for the seat.
- a tilting movement of the backrest and thus the backrest support in a lifting movement for the seat.
- the implementation can be done for example via a lever mechanism or via a slotted guide of the seat or the seat support.
- a space-saving design results in particular by using coil springs as energy storage.
- Dynamic sitting is supported by the fact that the seat is flexible and has a web in the central region, wherein the rear portion of the seat is designed to be lowered.
- the seat cushion support in the side region slits extending from the edges towards the center, the slots in the middle to rear of the seat cushion support are arranged and the length of the slots with increasing distance becomes smaller to the trailing edge of the seat cushion support.
- the flexibility of the seat cushion support can be increased by, for example perforations are provided in the region of the ischial tuberosities, wherein the perforations are formed by slots which are parallel to the trailing edge of the seat cushion support, and / or slits which extend parallel to the side edges.
- the purely weight-dependent restoring force can be perceived as too large / small. Therefore, according to the invention, the use of a second force accumulator is proposed, which supports / obstructs the lifting movement if necessary, so that the restoring force is reduced / increased.
- the second energy storage is preferably adjustable.
- the energy store is pivotally mounted and can be biased at a pivoting or during a movement of the backrest.
- tension springs for example, tension springs, compression springs, gas pressure elements, torsion springs, torsion springs, etc.
- FIG. 4 shows a side view of a seat mechanism with a seat support 1 on which a seat (not shown) is mounted, with a panel 10, wherein on the seat support 1, a backrest support 3 is pivotally mounted via a coupling shaft 7.
- the backrest support 3 carries a backrest, not shown, in the representation of the FIG. 4 the seat mechanism is in the normal position, that is the upright backrest.
- FIG. 1 is an exploded perspective view and shows in addition to the backrest support 3 and the seat support 1, a main carrier 9 and a front link and a central link 17th
- the main carrier 9 carries the entire seat mechanism and is connected via a bore 11 in a conventional manner with a chair column.
- the seat carrier 1 is connected via the front link 15 with the main carrier 9, via bearing bores 19 which are aligned with bearing bores 21 on the main carrier, and bearing bores 23 which are aligned with corresponding bearings (not shown) on the seat support. Furthermore, in the assembled state, the backrest support 3 is pivotally mounted on the main support 9, via bearing bores 25 which are aligned with bearing bores 27 on the main support, these bearing bores having a main axis 13 (cf. FIG. 4 ) define.
- the backrest support 3 is attached via bearing eyes 26 to corresponding bearings on the seat support, so that the backrest support is pivotable with respect to the seat support.
- the bearing lugs 26 are offset from the bearing bores 25, so that the backrest support 3 itself forms a rear link.
- FIG. 2 shows the seat support 1 and the backrest support 3 in the assembled state. Also shown are coil springs 33, which are mounted in the backrest support 3 and whose legs are supported in an abutment 35 of the backrest support 3, wherein the legs at the other end of the coil springs are supported on the main carrier (not shown).
- spring assemblies 37 are pivotally received, wherein the spring assemblies on the one hand act on a displaceable axis 39, on the other hand on an abutment 43 of the main carrier 9 (FIG. FIG. 6 ).
- the displaceable axis 39 is mounted on both sides on cam tracks 47 and can be moved via an actuating lever 41 on the curved path.
- the cam track 47 has different distances in the course of the abutment 43, so that the spring assemblies 37 are loaded differently in different positions, for example, in three positions, that is, a first position without load, a second position with medium load and a third position with high Burden.
- the spring assemblies act as tension springs, and under load tensile forces between the seat support and the main carrier act.
- the inner structure of the spring assemblies 37 are designed so that spring elements are designed in the form of compression springs, since in this design, a higher load capacity and a longer service life can be achieved.
- FIG. 4 shows FIG. 4 the seat mechanism in the normal state, ie with upright backrest.
- FIG. 6 shows FIG. 6 the position of the seat mechanism with a maximum backwards inclined back
- the seat support 1 opposite FIG. 4 is raised in parallel, in the rear area on the rear link, as is apparent from the position of the axles 13 and 7, and in the front area on the front link 15, as is apparent from its position.
- the coil springs 35 are loaded and cause a restoring force on the backrest support 3, which is additionally reinforced via the front and the rear handlebars by acting on the seat weight, which, as mentioned, via the spring assemblies 37, the restoring force can be changed.
- the front arm 15 is mounted on the seat support in slots 49.
- the position of the handlebar 15 is locked in the slots 49 in the lower position of the elongated holes.
- This lock can be canceled, and the seat support can be tilted forward be like in FIG. 3 is shown.
- This seating position is particularly suitable for work on computer screens, etc. Since this position of the seat support is unfavorable when the backrest is tilted back, according to the invention, the seat support is forcibly moved to the horizontal position when the backrest support is pivoted.
- levers 51 are provided, which on the one hand act on the main carrier 9, on the other hand on the seat carrier 1, and which cause forcibly that the front edge of the seat carrier is raised.
- the front link can be locked in the lower region of the slots 49.
- the middle handlebar 17 each have a lever 51.
- the middle handlebar 17 is mounted in fastening tabs 31 which are fixed to the seat support.
- the levers 51 each carry at the end facing away from the attachment tabs 31 bearing journals 29, which are mounted in the main carrier.
- the seat mechanism shown here is particularly suitable for office swivel chairs, but can also be used in other seating such as 4-leg chairs, armchairs, sofas and the like.
- an seat chair includes the seat mechanism described, a seat 61 with a seat cushion support 65 and a seat cushion 63 and a back frame 67.
- the seat 61 is slidably mounted on the seat support 1 to the front or rear, wherein the back frame 67 on the backrest support with the main support connected to a chair column 73 is connected.
- a backrest frame 77 is pivotally mounted, which is connected at its lower end to the trailing edge of the seat 61. Further, a lumbar support 75 is provided which is attached to a lumbar support of a cross member 81 and a longitudinal member 83.
- FIG. 9 shows the frame construction of the chair without seat cushion. From this representation it can be seen that the cross member 81 extends between two bars of the back frame 67. In the middle of the cross member 81 of the longitudinal member 83 is fixed, which is transverse to a Holm the backrest frame 77 extends. Furthermore, the longitudinal member 89 has a telescopic connection 85.
- the back frame 77 is in turn connected via a hinge connection 89 of lamellae with the back frame 77.
- FIG. 9 shows that the seat cushion support 65 is formed as a plate which is made of flexible material and in the middle has a front to rear extending web 91.
- the web 91 rests on the seat support 1 (FIG. 7), but may also be connected to it and to the seat mechanism 79. By resting and flexibility dynamic seating is promoted with changing right / left load.
- the seat cushion support is provided with slots 95 which extend parallel to the side edges of the seat cushion support, and with slots 97 extending parallel to its trailing edge to further increase flexibility.
- FIG. 8 shows the seat cushion support 65 in a middle position.
- the backrest support is provided with a covering, padding or the like.
- the seat cushion support 65 is attached to lateral guides 105 (FIG. FIG. 1 ) Slidably mounted on the seat mechanism, wherein in the normal position, that is, with not inclined backrest, the web 91 rests on the seat mechanism 79.
- the seat cushion support 65 is formed not as a flat plate but as a curved plate, in particular, the side portions of the seat cushion support 65 are curved in the normal position upwards.
- the land 91 rises from the surface of the seat mechanism 79, and the cambers are pressed down depending on the body weight of the seated person and thus balanced. This is assisted by the arrangement of the slots 99 and their shaping, so that the compensation takes place in particular in the rear region of the seat and thus the seat is lowered, in particular in the rear area, whereby the seat comfort is increased when leaning back.
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)
Description
Die Erfindung betrifft ein Sitzmöbel, insbesondere einen Stuhl, gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a chair, in particular a chair, according to the preamble of
Ein derartiges Sitzmöbel ist beispielsweise aus der
Andererseits wird die Gewichtskraft bei der bekannten Vorrichtung nicht effektiv ausgenutzt, da bei dieser Vorrichtung die Belastung des Kraftspeichers über den vorderen Bereich des Sitzes erfolgt, das heißt des Oberschenkelbereichs der sitzenden Person.On the other hand, the weight force is not effectively utilized in the known device, since in this device, the load of the force accumulator takes place over the front region of the seat, that is, the thigh area of the seated person.
Weitere Sitzmöbel nach dem Oberbegriff des Patentanspruchs 1 sind aus der
Demgegenüber liegt der Erfindung die Aufgabe zugrunde, ein Sitzmöbel mit gewichtsabhängiger Rückstellkraft für die Lehne anzugeben, die sich durch einen einfachen Aufbau auszeichnet und mit der die Gewichtskraft effizient genutzt werden kann.In contrast, the present invention seeks to provide a chair with weight-dependent restoring force for the backrest, which is characterized by a simple structure and with which the weight can be used efficiently.
Die Lösung dieser Aufgabe erfolgt durch die Merkmale des Patentanspruches 1; die abhängigen Ansprüche beziehen sich auf vorteilhafte Ausgestaltungen der Erfindung.The solution of this problem is achieved by the features of
Erfindungsgemäß wird von dem bekannten Prinzip, den Kraftspeicher durch die Gewichtskraft der sitzenden Person vorzuspannen, abgewichen, und es wird demgegenüber vorgeschlagen, eine Neigungsbewegung der Lehne und damit des Lehnenträgers in eine Hubbewegung für den Sitz umzusetzen. Somit wird bei einer Neigung der Lehne der gesamte Sitz mit der darauf sitzenden Person angehoben, so dass die gesamte Gewichtskraft zur Aufbringung der Rückstellkraft für die Lehne ausgenutzt werden kann.According to the invention, deviating from the known principle of biasing the energy storage by the weight of the seated person, and it is proposed in contrast, implement a tilting movement of the backrest and thus the backrest support in a lifting movement for the seat. Thus, at a tilt the back of the entire seat raised with the person sitting on it, so that the entire weight can be used to apply the restoring force for the backrest.
Die Umsetzung kann dabei beispielsweise über einen Hebelmechanismus oder über eine Kulissenführung des Sitzes beziehungsweise des Sitzträgers erfolgen.The implementation can be done for example via a lever mechanism or via a slotted guide of the seat or the seat support.
Ein platzsparender Aufbau ergibt sich insbesondere durch Verwendung von Wendelfedern als Kraftspeicher.A space-saving design results in particular by using coil springs as energy storage.
Dynamisches Sitzen wird dadurch unterstützt, dass der Sitz flexibel ausgebildet ist und einen Steg im mittleren Bereich aufweist, wobei der hintere Bereich des Sitzes absenkbar ausgestaltet ist. Um die Absenkung im hinteren Bereich des Sitzes zu ermöglichen, weist ein flexibler Sitzpolsterträger im Seitenbereich Schlitze auf, die von den Kanten in Richtung zur Mitte verlaufen, wobei die Schlitze im mittleren bis hinteren Bereich des Sitzpolsterträgers angeordnet sind und die Länge der Schlitze mit wachsendem Abstand zur Hinterkante des Sitzpolsterträgers kleiner wird.Dynamic sitting is supported by the fact that the seat is flexible and has a web in the central region, wherein the rear portion of the seat is designed to be lowered. In order to allow the lowering in the rear of the seat, has a flexible seat cushion support in the side region slits extending from the edges towards the center, the slots in the middle to rear of the seat cushion support are arranged and the length of the slots with increasing distance becomes smaller to the trailing edge of the seat cushion support.
Die Flexibilität des Sitzpolsterträgers kann erhöht werden, indem beispielsweise im Bereich der Sitzbeinhöcker Perforationen vorgesehen sind, wobei die Perforationen durch Schlitze gebildet sind, die parallel zur Hinterkante des Sitzpolsterträgers verlaufen, und/oder Schlitze, die parallel zu den Seitenkanten verlaufen.The flexibility of the seat cushion support can be increased by, for example perforations are provided in the region of the ischial tuberosities, wherein the perforations are formed by slots which are parallel to the trailing edge of the seat cushion support, and / or slits which extend parallel to the side edges.
Insbesondere bei schweren/leichten Personen kann die rein Gewichtskraft abhängige Rückstellkraft als zu groß/klein empfunden werden. Erfindungsgemäß wird deshalb der Einsatz eines zweiten Kraftspeichers vorgeschlagen, der bei Bedarf die Hubbewegung unterstützt/behindert, so dass die Rückstellkraft verkleinert/vergrößert wird.Especially with heavy / light persons, the purely weight-dependent restoring force can be perceived as too large / small. Therefore, according to the invention, the use of a second force accumulator is proposed, which supports / obstructs the lifting movement if necessary, so that the restoring force is reduced / increased.
Dazu ist der zweite Kraftspeicher vorzugsweise einstellbar.For this purpose, the second energy storage is preferably adjustable.
In einer bevorzugten Ausführungsform ist der Kraftspeicher verschwenkbar gelagert und kann bei einer Verschwenkung oder bei einer Bewegung der Lehne vorgespannt werden.In a preferred embodiment, the energy store is pivotally mounted and can be biased at a pivoting or during a movement of the backrest.
Insbesondere bei Arbeiten an Computerbildschirmen wird es als angenehm empfunden, wenn der Sitz des Sitzmöbels nach vorne abgesenkt werden kann. Die Erfinder haben erkannt, dass beim Zurücklehnen in der geneigten Position des Sitzes ein unangenehmes Gefühl des "Herausrutschens" aus dem Sitz entstehen kann. Erfindungsgemäß wird deshalb vorgeschlagen, eine Rückstellvorrichtung vorzusehen, die bei einer Hubbewegung des Sitzträgers die Absenkung zwangsweise aufhebt, wobei die Rückstellvorrichtung vorzugsweise einen Hebelmechanismus aufweist.Especially when working on computer screens, it is perceived as pleasant when the seat of the chair can be lowered to the front. The inventors have recognized that when leaning back in the reclined position of the seat, an uncomfortable feeling of "slipping out" of the seat may result. According to the invention, therefore, it is proposed to provide a return device which forcibly releases the lowering during a lifting movement of the seat carrier, the return device preferably having a lever mechanism.
Abhängig von der konkreten Ausgestaltung können als Kraftspeicher beispielsweise Zugfedern, Druckfedern, Gasdruckelemente, Torsionsfedern, Schenkelfedern etc. eingesetzt werden.Depending on the specific configuration can be used as energy storage, for example, tension springs, compression springs, gas pressure elements, torsion springs, torsion springs, etc.
Ein Ausführungsbeispiel der Erfindung wird anhand der beigefügten Zeichnungen erläutert. Dabei zeigen
Figur 1- eine Explosionsdarstellung der Grundelemente einer Sitzmechanik,
Figur 2- eine perspektivische Draufsicht auf die montierte Sitzmechanik,
- Figuren 3-6
- verschiedene Seiten- bzw. Seitenschnittdarstellungen,
Figur 7- ein Mittelschnitt des Bürodrehstuhls,
- Figur 8
- eine Seitendarstellung des Bürodrehstuhls ohne Sitzpolster,
- Figur 9
- eine Perspektivdarstellung des Rahmenaufbaus des Bürodrehstuhls und
- Figur 10
- eine Draufsicht auf die Rahmenkonstruktion.
- FIG. 1
- an exploded view of the basic elements of a seat mechanism,
- FIG. 2
- a perspective top view of the mounted seat mechanism,
- Figures 3-6
- different side and side views,
- FIG. 7
- a middle section of the office swivel chair,
- FIG. 8
- a side view of the office swivel chair without seat pad,
- FIG. 9
- a perspective view of the frame structure of the office swivel chair and
- FIG. 10
- a plan view of the frame construction.
In dem vorstehenden Text ergeben sich die Definitionen von "vorne", "hinten", "oben" etc. aus der Normalposition des Stuhls.In the above text, the definitions of "front", "back", "top", etc. result from the normal position of the chair.
Der Hauptträger 9 trägt die gesamte Sitzmechanik und wird über eine Bohrung 11 in an sich bekannter Weise mit einer Stuhlsäule verbunden.The main carrier 9 carries the entire seat mechanism and is connected via a bore 11 in a conventional manner with a chair column.
In montiertem Zustand ist der Sitzträger 1 über den vorderen Lenker 15 mit dem Hauptträger 9 verbunden, und zwar über Lagerbohrungen 19, die mit Lagerbohrungen 21 am Hauptträger fluchten, und über Lagerbohrungen 23, die mit entsprechenden Lagern (nicht dargestellt) am Sitzträger fluchten. Des Weiteren ist im montierten Zustand der Lehnenträger 3 am Hauptträger 9 schwenkbar befestigt, und zwar über Lagerbohrungen 25, die mit Lagerbohrungen 27 am Hauptträger fluchten, wobei diese Lagerbohrungen eine Hauptachse 13 (vergleiche
Des Weiteren ist der Lehnenträger 3 über Lageraugen 26 an entsprechenden Lagern am Sitzträger befestigt, so dass der Lehnenträger bezüglich des Sitzträgers schwenkbar ist. Die Lageraugen 26 sind gegen die Lagerbohrungen 25 versetzt angeordnet, so dass der Lehnenträger 3 selbst einen hinteren Lenker bildet.Furthermore, the
Im Sitzträger 1 sind Federpakete 37 verschwenkbar aufgenommen, wobei die Federpakete einerseits an einer verschiebbaren Achse 39 angreifen, andererseits an einem Widerlager 43 des Hauptträgers 9 (
Wie bereits erläutert, zeigt
Wie insbesondere aus der
Wie insbesondere aus der
Die hier dargestellte Sitzmechanik ist insbesondere für Bürodrehstühle geeignet, kann aber auch bei anderen Sitzmöbeln wie 4-Beinstühlen, Sesseln, Sofas und dergleichen eingesetzt werden.The seat mechanism shown here is particularly suitable for office swivel chairs, but can also be used in other seating such as 4-leg chairs, armchairs, sofas and the like.
Gemäß
Am Lehnenrahmen 67 ist schwenkbar ein Lehnenunterrahmen 77 angebracht, der an seinem unteren Ende mit der Hinterkante des Sitzes 61 verbunden ist. Ferner ist eine Lordosestütze 75 vorgesehen, die an einem Lordosestützenträger aus einem Querträger 81 und einem Längsträger 83 angebracht ist.On the
Die Anordnung der letztgenannten Elemente ist insbesondere aus der perspektivischen Darstellung der
Der Lehnenrahmen 77 ist seinerseits über eine Gelenkverbindung 89 aus Lamellen mit dem Lehnenrahmen 77 verbunden.The
Im Bereich der Sitzbeinhöcker ist der Sitzpolsterträger mit Schlitzen 95 versehen, die sich parallel zu den Seitenkanten des Sitzpolsterträgers erstrecken, sowie mit Schlitzen 97, die sich parallel zu dessen Hinterkante erstrecken, um die Flexibilität weiter zu erhöhen.In the region of the ischial tuberosities, the seat cushion support is provided with slots 95 which extend parallel to the side edges of the seat cushion support, and with
Im Bereich der Seitenkanten ist der Sitzpolsterträger 65 mit Schlitzen 99 versehen, die sich von der Seitenkante in Richtung auf den Steg 91 erstrecken. Die Länge dieser Schlitze 99 nimmt zu, je näher sie an die Hinterkante des Sitzpolsterträgers 65 angeordnet sind.In the region of the side edges of the
Wie durch den Doppelpfeil in
Hierzu sei noch angemerkt, dass im Gebrauchszustand des Stuhls der Lehnenträger mit einer Bespannung, Polsterung oder dergleichen versehen ist.It should be noted that in the state of use of the chair, the backrest support is provided with a covering, padding or the like.
Der Sitzpolsterträger 65 ist an seitlichen Führungen 105 (
Insbesondere aus
Claims (9)
- Item for seating furniture, in particular office swivel chair with a seat mechanism with a movable seat carrier (1) and a backrest carrier (3), which are mounted on a main carrier (9), wherein the backrest carrier (3) can be pivoted about a horizontal pivot axis (13) counter to the action of a force accumulator, the seat carrier (1) and backrest carrier (3) are coupled to each other, and a lifting mechanism (15, 17) converts pivoting of the backrest carrier (3) into a lifting movement of the seat carrier (1), characterized by a seat (61) which is mounted on the seat carrier (1), and can be lowered in the rear region, wherein the seat (61) has a flexible seat cushion carrier (65) with a web (91) in the central region, wherein the seat cushion carrier has, in the side region, slots (99) which run from the edges toward the center, wherein the slots are arranged in the center to rear region of the seat cushion carrier and wherein the slots (99) become shorter in length with increasing distance from the rear edge of the seat cushion carrier (65) .
- Item of seating furniture according to Claim 1, characterized in that the lifting mechanism has levers which connect the seat carrier (1) to the main carrier (9) .
- Item of seating furniture according to Claim 1 or 2, characterized in that the force accumulator (33) has at least one leg spring which acts at one end on the backrest carrier (3) and at the other end on the main carrier (9).
- Item of seating furniture according to one of Claims 1 to 3, characterized by a second force accumulator (37) which acts at one end on the seat carrier (1) and at the other end on the main carrier (9).
- Item of seating furniture according to Claim 4, characterized in that the action of the second force accumulator (37) is adjustable.
- Item of seating furniture according to either of Claims 4 and 5, characterized in that the second force accumulator is arranged pivotably.
- Item of seating furniture according to Claim 6, characterized in that the second force accumulator is mounted at one end in a pivot axis and at the other end on a curved guide (47) .
- Item of seating furniture according to one of Claims 1 to 7, characterized by an inclination device for lowering the front edge of the seat (61) mounted on the seat carrier (1), and a resetting device (51) which inevitably cancels the lowering upon a lifting movement of the seat carrier (1).
- Item of seating furniture according to Claim 8, characterized in that the resetting device has at least one lever which acts at one end on the main carrier (9) and at the other end on the seat carrier.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09011822T ES2363706T1 (en) | 2009-09-16 | 2009-09-16 | MECHANICAL SEAT UNIT FOR SEAT FURNITURE, IN PARTICULAR ROTATING CHAIR OF OFFICE. |
EP09011822.5A EP2298132B1 (en) | 2009-09-16 | 2009-09-16 | Seating furniture, in particular rotating office chair |
US12/878,608 US20110062759A1 (en) | 2009-09-16 | 2010-09-09 | Seat Mechanism for an Item of Seating Furniture, in Particular Office Swivel Chair |
CA2714758A CA2714758A1 (en) | 2009-09-16 | 2010-09-13 | Seat mechanism for an item of seating furniture, in particular office swivel chair |
RU2010138230/12A RU2010138230A (en) | 2009-09-16 | 2010-09-15 | MECHANISM OF SEAT FOR FURNITURE FOR SEATING, IN PARTICULAR OFFICE OF THE TURNING CHAIR |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09011822.5A EP2298132B1 (en) | 2009-09-16 | 2009-09-16 | Seating furniture, in particular rotating office chair |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2298132A1 EP2298132A1 (en) | 2011-03-23 |
EP2298132B1 true EP2298132B1 (en) | 2018-06-13 |
Family
ID=41800556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09011822.5A Active EP2298132B1 (en) | 2009-09-16 | 2009-09-16 | Seating furniture, in particular rotating office chair |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110062759A1 (en) |
EP (1) | EP2298132B1 (en) |
CA (1) | CA2714758A1 (en) |
ES (1) | ES2363706T1 (en) |
RU (1) | RU2010138230A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1403471B1 (en) * | 2010-12-03 | 2013-10-17 | Imarc Spa | MECHANISM FOR OFFICE CHAIRS PROVIDED WITH A SWINGING FORCE ADJUSTMENT DEVICE. |
JP5863352B2 (en) * | 2011-09-16 | 2016-02-16 | 株式会社イトーキ | Chair |
USD697726S1 (en) | 2012-09-20 | 2014-01-21 | Steelcase Inc. | Chair |
US9527413B1 (en) | 2013-11-12 | 2016-12-27 | The United States Of America As Represented By The Secretary Of The Army | Reclining seat to mitigate the effects of mine blast load on spine and lower leg injuries |
WO2015161281A1 (en) | 2014-04-17 | 2015-10-22 | Hni Technologies Inc. | Chair and chair control assemblies, systems, and methods |
CN106901531B (en) * | 2017-04-15 | 2019-11-29 | 诸暨易和项目投资有限公司 | A kind of adjustable tip-up set in classroom |
US20190281988A1 (en) * | 2018-03-16 | 2019-09-19 | Chih-Cheng Su | Auxiliary backrest for a chair |
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US20020149247A1 (en) * | 1999-04-09 | 2002-10-17 | Niels Diffrient | Ergonomic chair |
US20040051358A1 (en) * | 2002-09-12 | 2004-03-18 | Bodnar David A. | Control mechanism for seating unit |
US20050146184A1 (en) * | 2003-12-30 | 2005-07-07 | Machael Jay R. | Chair with backward and forward passive tilt capabilities |
DE202006005645U1 (en) * | 2006-04-06 | 2007-08-09 | Sander, Armin | Office chair, has seat guided by seat guides to backrest support according to type of coupling drive, and support coupled with one of guides such that backward directed tilting movement of support is transferred into upward pivoting of seat |
EP2288275A1 (en) * | 2008-06-17 | 2011-03-02 | CO.FE.MO. Industrie S.R.L. | Adjustment device for chairs |
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US3411824A (en) * | 1967-03-17 | 1968-11-19 | Gen Motors Corp | Rubber diaphragm support for bucket seats |
DE9100572U1 (en) * | 1991-01-20 | 1992-06-11 | Fritz Hansens Eft. A/S, Alleroed | Seat shell |
JP3330145B2 (en) * | 1991-05-21 | 2002-09-30 | 株式会社イトーキ | Interlocking support mechanism for chair back and seat |
US6082824A (en) * | 1996-11-08 | 2000-07-04 | Chow; William W. | Therapeutic sling seat |
DE19823632C1 (en) | 1998-05-27 | 1999-09-30 | Roeder Peter | Office chair |
JP3738964B2 (en) * | 2000-10-31 | 2006-01-25 | 株式会社イトーキ | Cover mounting structure for chairs |
DE10126001A1 (en) * | 2001-05-18 | 2002-11-21 | Bock 1 Gmbh & Co | Preloaded spring arrangement, in particular for spring loading of synchronous mechanisms in office chairs |
US20030132653A1 (en) * | 2001-10-18 | 2003-07-17 | Doug Thole | Tension control mechanism for a chair |
JP5004152B2 (en) * | 2006-03-28 | 2012-08-22 | コクヨ株式会社 | Chair |
-
2009
- 2009-09-16 ES ES09011822T patent/ES2363706T1/en active Pending
- 2009-09-16 EP EP09011822.5A patent/EP2298132B1/en active Active
-
2010
- 2010-09-09 US US12/878,608 patent/US20110062759A1/en not_active Abandoned
- 2010-09-13 CA CA2714758A patent/CA2714758A1/en not_active Abandoned
- 2010-09-15 RU RU2010138230/12A patent/RU2010138230A/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020149247A1 (en) * | 1999-04-09 | 2002-10-17 | Niels Diffrient | Ergonomic chair |
US20040051358A1 (en) * | 2002-09-12 | 2004-03-18 | Bodnar David A. | Control mechanism for seating unit |
US20050146184A1 (en) * | 2003-12-30 | 2005-07-07 | Machael Jay R. | Chair with backward and forward passive tilt capabilities |
DE202006005645U1 (en) * | 2006-04-06 | 2007-08-09 | Sander, Armin | Office chair, has seat guided by seat guides to backrest support according to type of coupling drive, and support coupled with one of guides such that backward directed tilting movement of support is transferred into upward pivoting of seat |
EP2288275A1 (en) * | 2008-06-17 | 2011-03-02 | CO.FE.MO. Industrie S.R.L. | Adjustment device for chairs |
Also Published As
Publication number | Publication date |
---|---|
US20110062759A1 (en) | 2011-03-17 |
EP2298132A1 (en) | 2011-03-23 |
RU2010138230A (en) | 2012-03-20 |
ES2363706T1 (en) | 2011-08-12 |
CA2714758A1 (en) | 2011-03-16 |
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