EP0001846B1 - Reclining device for seats - Google Patents

Reclining device for seats Download PDF

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Publication number
EP0001846B1
EP0001846B1 EP78200139A EP78200139A EP0001846B1 EP 0001846 B1 EP0001846 B1 EP 0001846B1 EP 78200139 A EP78200139 A EP 78200139A EP 78200139 A EP78200139 A EP 78200139A EP 0001846 B1 EP0001846 B1 EP 0001846B1
Authority
EP
European Patent Office
Prior art keywords
axis
seat
locking
backrest
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP78200139A
Other languages
German (de)
French (fr)
Other versions
EP0001846A1 (en
Inventor
Manfred Flum
Horst Ziegler
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.)
Christof Stoll GmbH and Co KG
Original Assignee
Christof Stoll GmbH and Co KG
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 Christof Stoll GmbH and Co KG filed Critical Christof Stoll GmbH and Co KG
Publication of EP0001846A1 publication Critical patent/EP0001846A1/en
Application granted granted Critical
Publication of EP0001846B1 publication Critical patent/EP0001846B1/en
Expired 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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/026—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, 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
    • A47C1/03205—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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting chairs
    • 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
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/441—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with adjustable elasticity
    • 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
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/443—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs
    • 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
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/445—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with bar or leaf springs

Definitions

  • the invention relates to an inclination device for seating furniture according to the preamble of claim 1.
  • Such a tilt device is known from US-A-2321385.
  • the known device is voluminous and consists of a large number of individual parts which are openly mounted under the seat. It is therefore not only expensive to manufacture, but also requires maintenance in use and is also aesthetically unacceptable. It also does not meet modern ergonomic requirements, since it only enables swinging sitting and does not allow the seat and the backrest to be locked at a certain angle.
  • a locking device for the foldable backrest of a car seat is known from US-A-2 827 951. It has holes which are arranged successively in a plane perpendicular to the pivot axis of the backrest, and pins which snap into the holes. The pins can be disengaged via an actuating lever or a Bowden cable that is accessible to the user, so that the inclination of the backrest can be adjusted or tilted forward.
  • the known locking device is specially designed for car seats and can only be transferred to conventional seating to a limited extent.
  • a tilt device for seating is also known from DE-U-7527802. It has a housing located beneath the seat, mounted on the base frame of the seating furniture, in which the seat support is pivotally mounted around a horizontal axis in the area of the front edge of the seat, and in which towards the area of the center of the seat there is a further mounting for the leg of an angle arm-like backrest support and a spring element in the form of a lockable gas spring is also provided.
  • a piece of furniture in which the seat in the area of the front edge of the seat is pivotally mounted about a horizontal axis in support arms mounted on the underframe, and a mechanical locking device and a tension spring are provided in an armrest, the locking device lockable or detachable in stages and the tension spring acts between the locking device and the seat against the force exerted by the user.
  • a piece of seating furniture in which the seat in the area of the front edge of the seat is pivotally mounted about a horizontal axis in support arms mounted on the underframe, while the rear seat part is supported by rollers on swivel levers provided on the support arms, whereby the user load is absorbed by an adjustable tension spring acting between the pivot axis and the pivot levers.
  • a piece of seating furniture in which the inclination of the backrest can be adjusted by means of a locking device which, on the one hand, consists of negative locking elements which are successively arranged in several planes perpendicular to the inclination axis, and on the other hand into which negative locking elements there are snap-in positive locking elements.
  • a basic module is available in which all non-moving parts of the tilting device according to the invention are integrated. That way will be working steps saved in production, an aesthetically compact form and, at the same time, a high level of stability with low material consumption.
  • This basic building block can still be used both for a simpler embodiment with a rigid, integral seat backrest and for more comfortable models with a positively controlled, separately movable backrest.
  • the entire movement mechanism is dust and touch-proof sealed in the housing, which eliminates the risk of injury and maintenance work is unnecessary.
  • the tension springs have spring characteristics that meet user requirements, and can be adapted to the respective user load with little effort using the adjustment element.
  • the special locking mechanism is highly compact and robust, but still enables a very fine adjustment of the inclination with little material.
  • the user can either choose a fixed locked work or rest position or finely adjustable 7 intermediate positions between the seat and the backrest, or alternatively sit “dynamically” between work and rest position against a spring action acting on the back.
  • the angle between the seat and backrest which determines the body angle, changes in a force-controlled manner depending on the respective inclination of the seat, so that a smaller, and in, physiologically favorable manner in the working position the rest position results in a large seat angle.
  • FIGS. 1-4 are shown at a) above in a partially sectioned side view, below at b) in a top view with the seat removed.
  • a preferably frame-shaped seat support 1 is mounted via an axis 2 in bearings 2a of a housing 3.
  • the usually padded seat attached to the seat support 1 is designated with la.
  • the bearings 2a are arranged in the area of the front edge 1b of the seat, as a result of which the height remains constant when the seat support 1 is adjusted and the thighs of the user mounted on the seat la are avoided.
  • the housing 3 is mounted on the support column 17 of the base frame in a height-adjustable manner by means of a cone receptacle 14 via a gas spring which can be actuated by means of an actuating lever 15, and is preferably made of sheet metal.
  • a gas spring which can be actuated by means of an actuating lever 15, and is preferably made of sheet metal.
  • another height adjustment device can also be provided, e.g. a grid mechanism.
  • the housing 3 has a bearing 8a for receiving the lower leg of a movable backrest support. Furthermore, for reasons of clarity only shown in FIG. 4, it includes a guide for horizontally movable, spring-loaded locking bolts 11 in the form of a locking box 19.
  • the parts described so far represent the basic building block of the tilting device according to the invention, from which one can then arrive at simpler or more convenient models in a production-technically advantageous manner, preferably only in the final assembly.
  • Tension springs 5b, 5c are used as spring elements.
  • the bias of the tension springs 5b, 5c can be set by the user in a simple manner by actuating the actuating button 7a.
  • the threaded eye 3a is integrated in the housing 3, so that the number of parts and the size thereof are significantly reduced.
  • the locking plate 10 is attached to the seat support 1. By actuating the lever 13, either one of the locking bolts 11 is locked in a locking hole 28 of the locking plate 10, so that the inclination of the seat support 1 is locked in the selected position, or all locking bolts 11 are locked out, so that the user of the seat against the force the Spring elements can sit swinging "dynamically".
  • the axis 2 of the seat support 1 has a plurality of levers 4, on the ends of which spring elements in the form of tension springs 5b, 5c are suspended, the other ends of which are partly fixed to fastening eyes 6, partly to a strip 24.
  • the tension springs 5c fixed to the strip 24 can be adjusted in their pretension by means of the adjusting element 7 by actuating the actuating button 7a according to the individual needs of the user, the tension springs 5b, on the other hand, are not adjustable.
  • tension springs 5b, 5c which are as identical as possible, has two advantages in particular: On the one hand, the installation space can be kept short and short despite the large total spring forces. On the other hand, it is sufficient to make only one or two tension springs 5c adjustable to match the spring forces to the constitution of the user, which results in low operating forces and a simple design of the adjustment device.
  • the seat support 1 is movably connected on its side remote from the axis to the backrest leg 8 via a bracket 9.
  • the location of this connection is chosen such that the distance between the axis 2 of the seat support 1 and the bracket 9 is approximately twice as large as the distance between the bracket 9 and the axis 8b of the backrest bracket leg 8.
  • This positively controlled inclination adjustment takes into account today's knowledge of optimal ergonomics.
  • the housing 3 can be made very flat in its front part, and that the mechanical loads are largely avoided due to the impact loads occurring when the housing is seated.
  • Fig. 3 and Fig. 4 the locking device only indicated in the other figures, the locking plate 10 and the locking pin 11 is shown in more detail.
  • two locking bolts 11 are guided in a horizontally movable manner in a locking box 19 fixed in the housing 3, and are pressed by means of locking springs 27 against the locking plate 10 fastened to the end of the backrest arm leg remote from the axis.
  • the locking plate 10 has a row of successive locking holes 28 for each bolt 11, but the rows of holes are offset by half in each case, so that only one of the locking bolts 11 lying in the same horizontal plane can snap into a locking hole 28.
  • the horizontal movement of the locking bolts 11 is brought about in that horizontal forces are exerted on the unlocking bolts 21 attached to the locking bolts 11 during the upward and downward movement thereof via the inclined plane 20 of the unlocking slide 12.
  • the locking bolts 11 cannot accidentally jump out of a position locked in a locking hole 28, they each have a nose 30, so that they can only be guided out of their locking hole 28 when the actuating lever 13 is actuated, when the user pushes back on the backrest and thereby lowers the locking plate 10 a little.
  • the tilting device according to the invention is an independent, compact attachment element to be attached under the seat and can be attached under a wide variety of chair and armchair upper parts, which can be designed with or without armrests.
  • the locking device works fully mechanically and positively, which makes it robust and durable.
  • the compensation and return spring system consists entirely of reliable and inexpensive mechanical springs.

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  • 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)
  • Seats For Vehicles (AREA)

Description

Die Erfindung betrifft eine Neigungsvorrichtung für Sitzmöbel nach dem Oberbegriff des Anspruchs 1.The invention relates to an inclination device for seating furniture according to the preamble of claim 1.

Eine solche Neigungsvorrichtung ist bekannt aus US-A-2321385. Die bekannte Vorrichtung ist jedoch voluminös und besteht aus einer grossen Anzahl offen unter dem Sitz angebrachter Einzelteile. Sie ist daher nicht nur kostenträchtig bei der Herstellung, sondern auch wartungsbedürftig im Gebrauch, und überdies ästhetisch unakzeptabel. Sie entspricht auch nicht modernen ergonomischen Erfordernissen, da sie nur ein schwingendes Sitzen ermöglicht und eine Arretierung des Sitzes und der Lehne in einer bestimmten Neigung nicht zulässt.Such a tilt device is known from US-A-2321385. However, the known device is voluminous and consists of a large number of individual parts which are openly mounted under the seat. It is therefore not only expensive to manufacture, but also requires maintenance in use and is also aesthetically unacceptable. It also does not meet modern ergonomic requirements, since it only enables swinging sitting and does not allow the seat and the backrest to be locked at a certain angle.

Eine Arretiervorrichtung für die umlegbare Lehne eines Autositzes ist bekannt aus US-A-2 827 951. Sie weist Löcher auf, die in einer zur Schwenkachse der Lehne senkrechten Ebene aufeinanderfolgend angeordnet sind, sowie Zapfen, die in die Löcher einrasten. Ueber einen dem Benutzer zugänglichen Betätigungshebel oder einen Bowdenzug können die Zapfen ausgerastet werden, so dass die Lehne in ihrer Neigung verstellt oder nach vorne gekippt werden kann. Die bekannte Arretiervorrichtung ist speziell für Autositze konzipiert und auf übliche Sitzmöbel nur bedingt übertragbar.A locking device for the foldable backrest of a car seat is known from US-A-2 827 951. It has holes which are arranged successively in a plane perpendicular to the pivot axis of the backrest, and pins which snap into the holes. The pins can be disengaged via an actuating lever or a Bowden cable that is accessible to the user, so that the inclination of the backrest can be adjusted or tilted forward. The known locking device is specially designed for car seats and can only be transferred to conventional seating to a limited extent.

Eine Neigungsvorrichtung für Sitzmöbel ist auch aus DE-U-7527802 bekannt. Sie weist ein unterhalb des Sitzes angeordnetes, am Untergestell des Sitzmöbels gelagertes Gehäuse auf, in welchem im Bereich der Sitzvorderkante der Sitzträger um eine horizontale Achse schwenkbar gelagert ist, und in welchem zum Bereich der Sitzmitte hin eine weitere Lagerung für den Schenkel eines winkelhebelartigen Lehnenträgers und ferner ein Federelement in Form einer verriegelbaren Gasfeder vorgesehen sind.A tilt device for seating is also known from DE-U-7527802. It has a housing located beneath the seat, mounted on the base frame of the seating furniture, in which the seat support is pivotally mounted around a horizontal axis in the area of the front edge of the seat, and in which towards the area of the center of the seat there is a further mounting for the leg of an angle arm-like backrest support and a spring element in the form of a lockable gas spring is also provided.

Nachteilig bei dieser bekannten Neigungsvorrichtung ist vor allem die Gasfeder: sie bietet nicht die Möglichkeit, das Körpergewicht des Benutzers in jeder Lage spontan auszugleichen, und ist so hohen Kräften ausgesetzt, dass an ihre Dichtigkeit übermässig grosse Anforderungen gestellt werden müssen. Auch eine wirklich feste Einstellung ist deshalb prinzipiell nicht möglich.The disadvantage of this known inclination device is, above all, the gas spring: it does not offer the possibility of spontaneously balancing the body weight of the user in any position, and is subjected to such high forces that excessive demands must be made of its tightness. In principle, therefore, a really firm setting is not possible.

Aus DE-A-23 32 596 ist ein Siztmöbel bekannt, bei welchem der Sitz im Bereich der Sitzvorderkante in am Untergestell gelagerten Tragarmen um eine horizontale Achse schwenkbar gelagert ist, und in einer Armlehne eine mechanische Feststellvorrichtung und ein Zugfeder vorgesehen sind, wobei die Feststellvorrichtung in Stufen arretierbar oder lösbar ausgebildet ist und die Zugfeder zwischen der Feststellvorrichtung und dem Sitz entgegen der vom Benutzer ausgeübten Kraft wirkt.From DE-A-23 32 596 a piece of furniture is known in which the seat in the area of the front edge of the seat is pivotally mounted about a horizontal axis in support arms mounted on the underframe, and a mechanical locking device and a tension spring are provided in an armrest, the locking device lockable or detachable in stages and the tension spring acts between the locking device and the seat against the force exerted by the user.

Aus DE-A-20 01 097 ist ein Sitzmöbel bekannt, bei welchem der Sitz im Bereich der Sitzvorderkante in einer am Untergestell gelagerten Halterung um eine horizontale Achse schwenkbar gelagert ist, wobei das Benutzergewicht von einer in ihrer Vorspannung einstellbaren Druckfeder aufgenommen wird, welche zwischen dem Sitz und der Halterung wirkt.From DE-A-20 01 097 a piece of seating furniture is known in which the seat in the area of the front edge of the seat is pivotally mounted in a holder mounted on the base frame about a horizontal axis, the user weight being absorbed by a compression spring which is adjustable in its prestress, which between the seat and the bracket works.

Aus DE-C-1 108 870 ist ein Sitzmöbel bekannt, bei welchem der Sitz im Bereich der Sitzvorderkante in am Untergestell gelagerten Tragarmen um eine horizontale Achse schwenkbar gelagert ist, während der hintere Sitzteil über Rollen auf an den Tragarmen vorgesehenen Schwenkhebeln abgestützt ist, wobei die Benutzerlast von einer in ihrer Federwirkung einstellbaren, zwischen der Schwenkachse und den Schwenkhebeln wirkenden Zugfeder aufgenommen wird.From DE-C-1 108 870 a piece of seating furniture is known in which the seat in the area of the front edge of the seat is pivotally mounted about a horizontal axis in support arms mounted on the underframe, while the rear seat part is supported by rollers on swivel levers provided on the support arms, whereby the user load is absorbed by an adjustable tension spring acting between the pivot axis and the pivot levers.

Aus DE-U-74 01 018 schliesslich ist ein Sitzmöbel bekannt, bei welchem die Rückenlehne in ihrer Neigung mittels einer Feststelleinrichtung einstellbar ist, welche einerseits aus in mehreren zur Neigungsachse senkrechten Ebenen aufeinanderfolgend angeordneten, gegeneinander versetzten, negativen Rastelementen, und andererseits aus in die negativen Rastelemente einrastbaren positiven Rastelementen besteht.Finally, from DE-U-74 01 018 a piece of seating furniture is known in which the inclination of the backrest can be adjusted by means of a locking device which, on the one hand, consists of negative locking elements which are successively arranged in several planes perpendicular to the inclination axis, and on the other hand into which negative locking elements there are snap-in positive locking elements.

Alle bekannten Ausführungsformen vermögen jedoch den heute gültigen Anforderungen hinsichtlich Ergonomie und Produktionstechnik entweder überhaupt nicht zu genügen, oder aber sind so konzipiert, dass sie aufgrund des zu ihrer Realisierung nötigen technischen Aufwandes und des damit verbundenen hohen Preises nur für einen beschränkten Abnehmerkreis in Frage kommen.However, all known embodiments either do not meet the current requirements regarding ergonomics and production technology at all, or are designed in such a way that they can only be used by a limited group of customers due to the technical effort required to implement them and the associated high price.

Es ist daher die Aufgabe der Erfindung, bekannte Neigungsvorrichtungen derart zu verbessern, dass sie

  • - produktionstechnisch optimiert sind, das heisst, mit geringem Material- und Personalaufwand herstellbar und ohne erhebliche Aenderungen für Sitzmöbel verschiedener Art verwendbar sind,
  • - in grösstem Masse kompakt, optisch unauffällig, und staub- und berührungsgeschützt sind, und
  • - modernen ergonomischen Anforderungen genügen, insbesondere eine durch einfache Handgriffe anpassbare Neigung des Sitzes und ggfs. der Lehne an die jeweils gewünschte Körperhaltung ermöglichen.
It is therefore the object of the invention to improve known inclination devices in such a way that they
  • - are optimized in terms of production technology, that is, they can be produced with little material and personnel expenditure and can be used for seating of various types without significant changes,
  • - are to a great extent compact, visually unobtrusive, and protected against dust and contact, and
  • - Modern ergonomic requirements are met, in particular allowing the seat and, if necessary, the backrest to be adjusted to the desired posture by simple manipulations.

Erfindungsgemäss wird diese Aufgabe durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst.According to the invention, this object is achieved by the features specified in the characterizing part of claim 1.

Mit dem erfindungsgemäss ausgebildeten Gehäuse steht ein Grundbaustein zur Verfügung, in dem alle nicht beweglichen Teile der erfindungsgemässen Neigungsvorrichtung integriert sind. Auf diese Weise werden Arbeitsschritte bei der Produktion eingespart, eine ästhetische Kompaktform erzielt, und gleichzeitig bei geringem Materialaufwand eine hohe Stabilität. Dieser Grundbaustein ist unverändert sowohl für eine einfachere Ausführungsform mit starrer, integraler Sitzlehne verwendbar, als auch für komfortablere Modelle mit zwangsgesteuerter, separat beweglicher Lehne. Die gesamte Bewegungsmechanik ist staub- und berührungssicher abgeschlossen in dem Gehäuse untergebracht, wodurch eine Verletzungsgefahr ausgeschlossen wird und Wartungsarbeiten überflüssig sind. Die Zugfedern weisen den Benutzeransprüchen gerechte Federcharakteristiken auf, und können über das Verstellelement mit kleinem Kraftaufwand der jeweiligen Benutzerlast angepasst werden. Die besondere Verriegelungsmechanik ist hoch kompakt und robust, ermöglicht aber dennoch bei geringem Materialeinsatz eine sehr feinstufige Neigungsverstellung.With the housing designed according to the invention, a basic module is available in which all non-moving parts of the tilting device according to the invention are integrated. That way will be working steps saved in production, an aesthetically compact form and, at the same time, a high level of stability with low material consumption. This basic building block can still be used both for a simpler embodiment with a rigid, integral seat backrest and for more comfortable models with a positively controlled, separately movable backrest. The entire movement mechanism is dust and touch-proof sealed in the housing, which eliminates the risk of injury and maintenance work is unnecessary. The tension springs have spring characteristics that meet user requirements, and can be adapted to the respective user load with little effort using the adjustment element. The special locking mechanism is highly compact and robust, but still enables a very fine adjustment of the inclination with little material.

Der Benutzer kann entweder jeweils eine fest arretierte Arbeits- oder Ruhestellung oder dazwischen feinstufig verstellbare 7wischenstellungen des Sitzes und der Lehne wählen, oder aber pendelnd zwischen Arbeits- und Ruhestellung gegen eine am Rücken angreifende Federwirkung "dynamisch" sitizen.The user can either choose a fixed locked work or rest position or finely adjustable 7 intermediate positions between the seat and the backrest, or alternatively sit "dynamically" between work and rest position against a spring action acting on the back.

Bei der Konzeption nach Anspruch 3 mit einer beweglich angekoppelten Rückenlehne ändert sich bei jeder Sitzweise der den Körpersitiwinkel bestimmende Winkel zwischen Sitz und Lehne zwangsgesteuert in Abhängigkeit von der jeweiligen Neigung des Sitzes, so dass sich in physiologisch günstiger Weise in der Arbeitsstellung ein kleiner, und in der Ruhestellung ein grosser Sitzwinkel ergibt. Durch die Lagerung der Rückenlehne unter dem Sitz im Bereich der Sitzmitte werden Relativbewegungen zwischen Rücken und Lehne, und damit der unerwünschte "Hemdauszieheffekt" vermieden.In the conception according to claim 3 with a movably coupled backrest, the angle between the seat and backrest, which determines the body angle, changes in a force-controlled manner depending on the respective inclination of the seat, so that a smaller, and in, physiologically favorable manner in the working position the rest position results in a large seat angle. By storing the backrest under the seat in the area of the middle of the seat, relative movements between the back and the backrest, and thus the undesirable "shirt pull-out effect", are avoided.

Nachstehend wird die Erfindung durch in Figuren dargestellte Ausführungsbeispiele näher erläutert. Dabei zeigt:

  • Fig. 1 eine Ausführungsform mit starr am Sitz befestigter Lehne und vorn am Sitzträger angreifenden Zugfedern,
  • Fig. 2 eine Ausführungsform mit beweglicher Lehne und vorn am Sitzträger angreifenden Zugfedern,
  • Fig. 3 eine Ausführungsform mit beweglicher Lehne und am Schenkel des Lehnenträgers angreifenden Zugfedern, und
  • Fig. 4 eine bevorzugte Ausführungsform der Feststelleinrichtung der Neigungsvorrichtung.
The invention is explained in more detail below by means of exemplary embodiments shown in figures. It shows:
  • 1 shows an embodiment with a backrest rigidly attached to the seat and tension springs engaging the front of the seat support,
  • 2 shows an embodiment with a movable backrest and tension springs acting on the front of the seat support,
  • Fig. 3 shows an embodiment with a movable backrest and acting on the leg of the backrest tension springs, and
  • Fig. 4 shows a preferred embodiment of the locking device of the inclination device.

Die in den Figuren 1-4 dargestellten Ausführungsformen sind oben bei a) in teilweise geschnittener Seitenansicht, darunter bei b) in Draufsicht bei entferentem Sitz dargestellt.The embodiments shown in FIGS. 1-4 are shown at a) above in a partially sectioned side view, below at b) in a top view with the seat removed.

Bei allen Ausführungsformen ist ein vorzugsweise rahmenförmig ausgebildeter Sitzträger 1 über eine Achse 2 in Lagern 2a eines Gehäuses 3 gelagert. Der auf dem Sitzträger 1 befestigte, in der Regel gepolsterte Sitz ist mit la bezeichnet. Die Lager 2a sind im Bereich der Sitzvorderkante 1 b angeordnet, wodurch diese bei einer Neigungsverstellung des Sitzträgers 1 in der Höhe konstant bleibt und ein Anheben der auf dem Sitz la gelagerten Oberschenkel des Benutzers vermieden wird.In all embodiments, a preferably frame-shaped seat support 1 is mounted via an axis 2 in bearings 2a of a housing 3. The usually padded seat attached to the seat support 1 is designated with la. The bearings 2a are arranged in the area of the front edge 1b of the seat, as a result of which the height remains constant when the seat support 1 is adjusted and the thighs of the user mounted on the seat la are avoided.

Das Gehäuse 3 ist mittels einer Konusaufnahme 14 über eine mittels eines Betätigungshebels 15 betätigbare Gasfeder höhenverstellbar an der Standsäule 17 des Untergestells gelagert, und vorzugsweise aus Blech hergestellt. Statt der mit einem Konus versehenen Gasfeder kann aber auch eine andere Höhenverstelleinrichtung vorgesehen sein, z.B. eine Rastermechanik. Das Gehäuse 3 weist ein Lager 8a zur Aufnahme des unteren Schenkels eines beweglichen Lehnenträgers auf. Ferner umfasst es eine-der Uebersichtlichkeit wegen nur in Fig. 4 dargestellte - Führung für horizontal bewegliche, unter Federwirkung stehende Rastbolzen 11 in Form eines Verriegelungskastens 19. Es weist ferner eine Durchführungslagerung in Form eines Gewindeauges 3a für ein Verstellelement 7 mit Betätigungsknopf 7a zum Einstellen der Vorspannung der Federelemente auf. Schliesslich ist ein das Gefäuse 3 durchdringender, auf einen Entriegelungsschieber 12 wirkender Betätigungshebel 13 vorgesehen, durch dessen Betätigung der Entriegelungsschieber 12 auf und ab bewegt wird, wodurch über die schiefe Ebene 20 und die darauf gleitenden Entriegelungsbolzen 21 eine horizontale Bewegung der Rastbolzen 11 entsteht.The housing 3 is mounted on the support column 17 of the base frame in a height-adjustable manner by means of a cone receptacle 14 via a gas spring which can be actuated by means of an actuating lever 15, and is preferably made of sheet metal. Instead of the gas spring provided with a cone, another height adjustment device can also be provided, e.g. a grid mechanism. The housing 3 has a bearing 8a for receiving the lower leg of a movable backrest support. Furthermore, for reasons of clarity only shown in FIG. 4, it includes a guide for horizontally movable, spring-loaded locking bolts 11 in the form of a locking box 19. It also has a bushing in the form of a threaded eye 3a for an adjusting element 7 with an actuating button 7a for adjustment the preload of the spring elements. Finally, an actuating lever 13 which penetrates the housing 3 and acts on an unlocking slide 12 is provided, by means of which the unlocking slide 12 is moved up and down, as a result of which a horizontal movement of the locking bolts 11 occurs via the inclined plane 20 and the unlocking bolts 21 sliding thereon.

Die bis hierher beschriebenen Teile stellen den Grundbaustein der erfindungsgemässen Neigungsvorrichtung dar, von welchem ausgehend man dann in produktionstechnisch günstiger Weise, vorzugsweise erst in der Endmontage, zu einfacheren oder komfortableren Modellen gelangt.The parts described so far represent the basic building block of the tilting device according to the invention, from which one can then arrive at simpler or more convenient models in a production-technically advantageous manner, preferably only in the final assembly.

In Fig. 1 ist eine besonders einfache, preisgünstige Ausführungsform dargestellt:

  • Hier bleibt das Lager 8a am Gehäuse 3 unbenutzt, und die Lehne 23 ist starr, integral mit dem Sitz la verbunden.
1 shows a particularly simple, inexpensive embodiment:
  • Here, the bearing 8a on the housing 3 remains unused, and the back 23 is rigid, integrally connected to the seat la.

Als Federelemente finden Zugfedern 5b, 5c, Verwendung. Die Vorspannung der Zugfedern 5b, 5c kann vom Benutzer in einfacher Weise durch Betätigen des Betätigungsknopfes 7a eingestellt werden. Dabei wirkt das als Schraube ausgebildete Verstellelement 7 über eine Leiste 24 auf die Zugfedern 5b, 5c. Das Gewindeauge 3a ist im Gehäuse 3 integriert, so dass der Teileaufwand und die Baugrösse desselben wesentlich verkleinert werden.Tension springs 5b, 5c are used as spring elements. The bias of the tension springs 5b, 5c can be set by the user in a simple manner by actuating the actuating button 7a. The adjusting element 7, designed as a screw, acts on the tension springs 5b, 5c via a bar 24. The threaded eye 3a is integrated in the housing 3, so that the number of parts and the size thereof are significantly reduced.

Das Rastblech 10 ist am Sitzträger 1 befestigt. Durch Betätigen des Hebels 13 wird entweder einer der Rastbolzen 11 in einem Rastloch 28 des Rastbleches 10 eingerastet, so dass die Neigung des Sitzträgers 1 in der gewählten Stellung arretiert ist, oder werden alle Rastbolzen 11 ausgerastet, so dass der Benutzer des Sitzmöbels gegen die Kraft der Federelemente pendelnd "dynamisch" sitzen kann.The locking plate 10 is attached to the seat support 1. By actuating the lever 13, either one of the locking bolts 11 is locked in a locking hole 28 of the locking plate 10, so that the inclination of the seat support 1 is locked in the selected position, or all locking bolts 11 are locked out, so that the user of the seat against the force the Spring elements can sit swinging "dynamically".

Die besonderen Vorteile der das Rastblech 10 und die Rastbolzen 11 umfassenden Feststelleinrichtung wie Feinstufigkeit, Robustheit und Kompaktheit werden noch im Zusammenhang mit Fig. 4 näher beschrieben.The particular advantages of the locking device comprising the locking plate 10 and the locking bolt 11, such as precision, robustness and compactness, are described in more detail in connection with FIG. 4.

Von der Einfach-Ausführung nach Fig. 1 kommt man ohne besonderen produktionstechnischen Aufwand zu der komfortableren Ausführung nach Fig. 2 dadurch, dass in dem dort unbenutzten Lager 8a nunmehr der untere Schenkel 8 eines winkelhebelartigen Lehnenträgers 16 mittels der zur Achse 2 des Sitzträgers 1 parallelen Achse 8b gelagert wird.From the simple version according to FIG. 1, the more comfortable version according to FIG. 2 can be reached without any special production engineering effort in that in the unused bearing 8a there is now the lower leg 8 of an angle lever-like backrest support 16 by means of the one parallel to the axis 2 of the seat support 1 Axis 8b is stored.

Wie in Fig. 1 weist die Achse 2 des Sitzträgers 1 mehrere Hebel 4 auf, an deren achsfernen Enden Federelemente in Form von Zugfedern 5b, 5c eingehängt sind deren andere Enden Teilweise an Befestigungsaugen 6, teilweise an einer Leiste 24 fixiert sind. Die an der Leiste 24 fixierten Zugfedern 5c können in ihrer Vorspannung mittels des Verstellelementes 7 durch Betätigung des Betätigungsknopfes 7a nach den individuellen Bedürfnissen des Benutzers eingestellt werden, die Zugfedern 5b sind demgegenüber nicht verstellbar.As in FIG. 1, the axis 2 of the seat support 1 has a plurality of levers 4, on the ends of which spring elements in the form of tension springs 5b, 5c are suspended, the other ends of which are partly fixed to fastening eyes 6, partly to a strip 24. The tension springs 5c fixed to the strip 24 can be adjusted in their pretension by means of the adjusting element 7 by actuating the actuating button 7a according to the individual needs of the user, the tension springs 5b, on the other hand, are not adjustable.

Die Verwendung mehrerer, möglichst baugleicher Zugfedern 5b, 5c hat insbesondere zwei Vorteile: Einerseits kann der Einbauraum trotz grosser Gesamtfederkräfte niedrig und kurz gehalten werden. Andererseits genügt es, zur Angleichung der Federkräfte an die Konstitution des Benutzers nur ein oder zwei Zugfedern 5c einstellbar zu machen, was geringe bedienkräfte und eine einfache Ausführung der Verstellvorrichtung zur Folge hat.The use of several tension springs 5b, 5c, which are as identical as possible, has two advantages in particular: On the one hand, the installation space can be kept short and short despite the large total spring forces. On the other hand, it is sufficient to make only one or two tension springs 5c adjustable to match the spring forces to the constitution of the user, which results in low operating forces and a simple design of the adjustment device.

Der Sitzträger 1 ist an seiner achsfernen Seite mit dem Lehnenträgerschenkel 8 über eine Lasche 9 beweglich verbunden. Der Ort dieser Verbindung ist dabei so gewählt, dass der Abstand zwischen der Achse 2 des Sitzträgers 1 und der Lasche 9 etwa doppelt so gross ist wie der Abstand zwischen der Lasche 9 und der Achse 8b des Lehnenträgerschenkels 8. Dadurch ergibt sich ein Verstellverhältnis des Lehnenträgers 16 zum Sitzträger 1 von etwa 2:1, d.h. für einen bestimmten Neigungswinkel des Sitzträgers 1 ergibt sich ein doppelt so grosser Neigungswinkel des Lehnenträgers 16. Diese zwangsgesteuerte Neigungsverstellung berücksichtigt die heutigen Kenntnisse einer optimalen Ergonomie.The seat support 1 is movably connected on its side remote from the axis to the backrest leg 8 via a bracket 9. The location of this connection is chosen such that the distance between the axis 2 of the seat support 1 and the bracket 9 is approximately twice as large as the distance between the bracket 9 and the axis 8b of the backrest bracket leg 8. This results in an adjustment ratio of the backrest bracket 16 to the seat support 1 of about 2: 1, ie for a certain angle of inclination of the seat support 1, the angle of inclination of the backrest support 16 is twice as large. This positively controlled inclination adjustment takes into account today's knowledge of optimal ergonomics.

Mittels des Betätigungshebels 13 ist wiederum entweder arretiertes feinstufig verstellbares, "statisches" Sitzen, oder gegen die Kräfte der Zug federn 5b, 5c pendelndes, "dynamisches" Sitzen einstellbar.By means of the actuating lever 13 is again either locked finely adjustable, "static" sitting, or against the forces of the train springs 5b, 5c oscillating, "dynamic" sitting adjustable.

Eine letzte, besonders bevorzugte Ausführungsform der Erfindung ist in Fig. 3 dargestellt:

  • Hier werden die vom Sitzträger 1 über die Lasche 9 auf den Lehnenträgerschenkel 8 übertragenen Benutzerlasten von als Zugfedern 5b, 5c ausgebildeten Federelementen aufgenommen, die am achsfernen Ende eines am Lehnenträgerschenkel 8 an gebrachten Hebelstücks 26 eingehängt sind. Mit ihrem anderen Ende sind die nicht verstellbaren Zugfedern 5b an der Achse 2 des Sitzträgers 1 eingehängt, und die verstellbaren Zugfedern 5c an einer Leiste 25, welche auf dem als Schraube ausgebildeten Verstellelement 7 geführt ist.
A last, particularly preferred embodiment of the invention is shown in FIG. 3:
  • Here, the user loads transmitted from the seat support 1 via the bracket 9 to the backrest leg 8 are absorbed by spring elements designed as tension springs 5b, 5c, which are suspended from the end of a lever piece 26 attached to the backrest leg 8. With their other end, the non-adjustable tension springs 5b are suspended on the axis 2 of the seat support 1, and the adjustable tension springs 5c on a bar 25 which is guided on the adjustment element 7 designed as a screw.

Die grossen Vorteile der Ausführungsform nach Fig. 3 liegen insbesondere darin, dass das Gehäuse 3 in seinem vorderen Teil sehr flach ausgeführt werden kann, und ein Anwippen der Mechanik durch die beim Absitzen auftretenden Stossbelastungen weitestgehend vermieden wird. Der Nachteil, dass bei einer Ausführung des Sitzmöbels mit starrer, integraler Lehne 23 wie in Fig. 1 der Lehnenträgerschenkel 8 hier nich weggelassen werden kann, wird durch die genannten Vorteile überwogen.The great advantages of the embodiment according to FIG. 3 are, in particular, that the housing 3 can be made very flat in its front part, and that the mechanical loads are largely avoided due to the impact loads occurring when the housing is seated. The disadvantage that the backrest leg 8 cannot be omitted here when the seating furniture is designed with a rigid, integral backrest 23, as in FIG. 1, is outweighed by the advantages mentioned.

In Fig. 3 und Fig. 4 ist noch die in den anderen Figuren nur angedeutete, das Rastblech 10 und die Rastbolzen 11 umfassende Feststelleinrichtung näher dargestellt. Wie ersichtlich, sind zwei Rastbolzen 11 in einem im Gehäuse 3 fixierten Verriegelungskasten 19 horizontal beweglich geführt, und werden mittels Verriegelungsfedern 27 gegen das am achsfernen Ende des Lehnenträgerschenkels 8 befestigte Rastblech 10 gedrückt. Das Rastblech 10 weist für jeden Bolzen 11 eine Reihe aufeinanderfolgender Rastlöcher 28 auf, wobei die Löckerreihen jedoch gegeneinander jeweils zur Hälfte versetzt sind, so dass von den in derselben horizontalen Ebene liegenden Rastbolzen 11 immer nur jeweils einer in ein Rastloch 28 einrasten kann. Durch dieses wechselseitige Einrasten der Rastbolzen 11 wird einerseits eine feine, unterhalb des menschlichen Wahrnehmungsvermögens liegende Abstufung der fest einzustellenden Sitzpositionen erreicht, andererseits aber trotzdem die gesamte Baugrösse der Teile trotz kräftiger Ausführung der Rastbolzen 11 und der Rastlöcher 28 bemerkenswert gering gehalten.In Fig. 3 and Fig. 4, the locking device only indicated in the other figures, the locking plate 10 and the locking pin 11 is shown in more detail. As can be seen, two locking bolts 11 are guided in a horizontally movable manner in a locking box 19 fixed in the housing 3, and are pressed by means of locking springs 27 against the locking plate 10 fastened to the end of the backrest arm leg remote from the axis. The locking plate 10 has a row of successive locking holes 28 for each bolt 11, but the rows of holes are offset by half in each case, so that only one of the locking bolts 11 lying in the same horizontal plane can snap into a locking hole 28. This mutual engagement of the locking pins 11 on the one hand achieves a fine gradation of the seating positions to be set, which is below human perception, but on the other hand the overall size of the parts is kept remarkably small despite the strong design of the locking pins 11 and the locking holes 28.

Die horizontale Bewegung der Rastbolzen 11 wird-wie schon oben erwähnt-dadurch bewirkt, dass über die schiefe Ebene 20 des Entriegelungsschiebers 12 bei dessen Auf- und Abwärtsbewegung Horizontalkräfte auf die an den Rastbolzen 11 angebrachten Entriegelungsbolzen 21 ausgeübt werden.As already mentioned above, the horizontal movement of the locking bolts 11 is brought about in that horizontal forces are exerted on the unlocking bolts 21 attached to the locking bolts 11 during the upward and downward movement thereof via the inclined plane 20 of the unlocking slide 12.

Wird der Entriegelungsschieber 12 durch Betätigung des Betätigungshebels 13 ganz nach unten gedrückt, so rasten beide Rast-; bolzen 11 in der Endstellung hinter der Nase 29 des Entriegelungsschiebers 12 ein. Dadurch ergibt sich die zweite stabile Lage des bistabilen Betätigungshebels 13, in welcher pendelndes, "dynamisches" Sitzen möglich ist.If the unlocking slider 12 is pushed all the way down by actuating the actuating lever 13, both latches snap; bolt 11 in the end position behind the nose 29 of the unlocking slide 12. This results in the second stable position of the bistable actuating lever 13, in which oscillating, "dynamic" sitting is possible.

Damit die Rastbolzen 11 aus einer in ein Rastloch 28 eingerasteten Stellung nicht ungewollt herausspringen können, weisen sie jeweils eine Nase 30 auf, so dass sie bei Betätigung des Betätigungshebels 13 nur dann aus ihrem Rastloch 28 herausgeführt werden können, wenn der Benutzer nach hinten auf die Lehne drückt und dadurch das Rastblech 10 ein wenig absenkt.So that the locking bolts 11 cannot accidentally jump out of a position locked in a locking hole 28, they each have a nose 30, so that they can only be guided out of their locking hole 28 when the actuating lever 13 is actuated, when the user pushes back on the backrest and thereby lowers the locking plate 10 a little.

Insgesamt stellt die Neigungsvorrichtung nach der Erfindung ein eigenständiges, kompaktes, unter dem Sitz anzubringendes Anbau-Element dar und kann unter den verschiedensten Stuhl- und Sesseloberteilen angebrach werden, die mit oder ohne Armlehne ausgeführt sein können. Die Feststelleinrichtung arbeitet voll mechanisch und formschlüssig, wodurch sie robust und dauerhaft ist. Das Ausgleichs- und Rückholfedersystem besteht vollumfänglich aus zuverlässigen und preiswerten mechanischen Federn.Overall, the tilting device according to the invention is an independent, compact attachment element to be attached under the seat and can be attached under a wide variety of chair and armchair upper parts, which can be designed with or without armrests. The locking device works fully mechanically and positively, which makes it robust and durable. The compensation and return spring system consists entirely of reliable and inexpensive mechanical springs.

BezeichnungslisteLabel list

  • 1 Sitzträger1 seat support
  • 1 a Sitz1 a seat
  • 1 b Sitzvorderkante1 b seat front edge
  • 2 Achse (des Sitzträgers)2 axis (of the seat support)
  • 2a Lager (der Schwenkachse)2a bearing (the swivel axis)
  • 3 Gehäuse3 housing
  • 3a Gewindeauge3a threaded eye
  • 4 Hebel4 levers
  • 5b Zugfeder5b tension spring
  • 5c Zugfeder (verstellbar)5c tension spring (adjustable)
  • 6 Befestigungsaugen6 mounting eyes
  • 7 Verstellelement7 adjustment element
  • 7a Betätigungsknopf (des Verstellelementes)7a actuating button (of the adjusting element)
  • 8 Lehnenträgerschenkel8 backrest legs
  • 8a Lager (am Gehäuse)8a bearing (on the housing)
  • 8b Achse (des Lehnenträgerschenkels)8b axis (of the backrest leg)
  • 9 Lasche9 tab
  • 10 Rastblech10 locking plate
  • 11 Rastbolzen11 locking bolts
  • 12 Entriegelungsschieber12 unlocking slide
  • 13 Betätigungshebel (für Neigung)13 operating lever (for inclination)
  • 14 Konusaufnahme14 cone holder
  • 15 Betätigungshebel (für Höhe)15 operating levers (for height)
  • 16 Lehnenträger16 backrest supports
  • 17 Standsäule17 pedestal
  • 18 Schieberstück18 slide piece
  • 19 Verriegelungskasten19 Locking box
  • 20 schiefe Ebene20 inclined plane
  • 21 Entriegelungsbolzen21 release bolts
  • 22 Druckstück22 pressure piece
  • 23 integrale Lehne23 integral backrest
  • 24 Leiste (Fig. 2)24 bar (Fig. 2)
  • 25 Leiste (Fig. 5)25 bar (Fig. 5)
  • 26 Hebelstück (an Lehnenträgerschenkel 8, Fig. 5)26 lever piece (on backrest support leg 8, FIG. 5)
  • 27 Verriegelungsfeder27 locking spring
  • 28 Rastlöcher28 locking holes
  • 29 Nase (am Entriegelungsschieber 12)29 nose (on the unlocking slide 12)
  • 30 Nase (am Rastbolzen 11)30 nose (on locking pin 11)

Claims (5)

1. Reclining device for a piece of seating furniture, which is arranged underneath the seat and fitted to the underframe of the piece of seating furniture and in which
- the seat support (1) is mounted to be pivotable about a horizontal axis (2) in the region of the front edge of the seat
- in the region towards the centre of the seat, a further bearing (8a) is provided for the arm of a backrest support (16) in the form of an angle lever, and
- at least one mechanical spring element is provided, the pre-tension of which is adjustable by means of an adjusting element (7) and which transmits the loading by the user to the underframe,

characterised in that the reclining device consists of
- a casing (3) which comprises the bearing (2a) for the axis (2) of the seat support (1) and the bearing (8a) for the axis (8b) of the backrest support arm (8), and a locking box (19) with two horizontally guided, springloaded locking bolts (11), and a bush bearing in the form of a threaded eye (3a) for the adjusting element (7), as well as an unlocking bar (12) which acts on the locking bolts (11) and can be moved up and down by means of an actuating lever (13),
- several tension springs (5b, 5c), of which the spring force, with support on the casing (3), acts on the seat support (1) against the loading by the user, a part of the tension springs (5c) being suspended on a strip (24, 25) which can be moved via the adjusting element (7) from outside the casing (3) in order to adjust the pre-tension of the suspended tension springs (5c),
-and a metal locking sheet (10) which is at least indirectly joined to the seat support (1) and which has mutually staggered locking holes (28) which are arranged in two adjacent rows and in which the locking bolts (11) can alternately engage,
- the unlocking bar (12) being adjustable by means of the actuating lever (13) into two stable positions, in one of which there is no engagement of a locking bolt and, in the other position, one locking bolt (11) engages in one locking hole (28) of the metal locking sheet (10).
2. Reclining device according to Claim 1, characterised in that the backrest (23) of the piece of seating furniture is rigidly joined to the seat (1a) and the metal locking sheet (10) is fixed to the seat support (1).
3. Reclining device according to Claim 1, characterised in that a backrest support arm (8), which is pivotable about a further axis (8b) parallel to the axis (2) of the seat support (1) and is joined by means of a connecting member (9) to the seat support (1) in the region remote from the pivot axis and forms the lower arm of the backrest support (16), is mounted in the further bearing (8a) and the metal locking sheet (10) is fixed to the end, remote from its axis, of the backrest support arm (8).
4. Reclining device according to one of Claims 1 to 3, characterised in that the seat support (1) has, on its axis (2) at least one, lever (4), the tension springs (5b, 5c) being hung between the end, remote from the axis, of the lever and fixing eyes (6) in the casing (3).
5. Reclining device according to Claim 3, characterised in that the backrest support arm (8) has, on its axis (8b), a lever section (26), the tension springs (5b, 5c) being provided between the end, remote from the axis, of the lever section and the axis (2) of the seat support (1).
EP78200139A 1977-10-29 1978-08-14 Reclining device for seats Expired EP0001846B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772748680 DE2748680A1 (en) 1977-10-29 1977-10-29 INCLINATION DEVICE FOR FURNITURE
DE2748680 1977-10-29

Publications (2)

Publication Number Publication Date
EP0001846A1 EP0001846A1 (en) 1979-05-16
EP0001846B1 true EP0001846B1 (en) 1981-04-29

Family

ID=6022642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78200139A Expired EP0001846B1 (en) 1977-10-29 1978-08-14 Reclining device for seats

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US (1) US4384741A (en)
EP (1) EP0001846B1 (en)
AT (1) AT374670B (en)
DE (2) DE2748680A1 (en)
IT (1) IT1099937B (en)

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ATA600978A (en) 1983-10-15
DE2860656D1 (en) 1981-08-06
AT374670B (en) 1984-05-25
US4384741A (en) 1983-05-24
IT7828875A0 (en) 1978-10-18
EP0001846A1 (en) 1979-05-16
DE2748680A1 (en) 1979-05-10
IT1099937B (en) 1985-09-28

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