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EP0001846A1 - Reclining device for seats - Google Patents

Reclining device for seats Download PDF

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Publication number
EP0001846A1
EP0001846A1 EP78200139A EP78200139A EP0001846A1 EP 0001846 A1 EP0001846 A1 EP 0001846A1 EP 78200139 A EP78200139 A EP 78200139A EP 78200139 A EP78200139 A EP 78200139A EP 0001846 A1 EP0001846 A1 EP 0001846A1
Authority
EP
European Patent Office
Prior art keywords
seat
spring
housing
pivot axis
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.)
Granted
Application number
EP78200139A
Other languages
German (de)
French (fr)
Other versions
EP0001846B1 (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—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/441—Supports 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—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/443—Supports 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—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/445—Supports 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 claims 1 and 2.
  • Such a tilting device is known from DT-GM 75 27 802.
  • a piece of seating in which the seat is pivotally mounted in the area of the front edge of the seat in support arms mounted on the base frame about a horizontal axis, and a mechanical locking device and a tension spring are provided in an armrest, the Locking device is lockable or releasable 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 in a holder mounted on the base frame about a horizontal axis, the user weight being absorbed by a compression spring which can be adjusted in its prestress, which between the seat and the bracket works.
  • 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 in the negative locking elements snap-in positive locking elements.
  • the known embodiments are capable of meeting the current ergonomic and production requirements technology either not enough at all, or are designed in such a way that they are only suitable for a limited group of customers due to the technical effort required to implement them and the associated high price.
  • the inclination device should also be optically inconspicuous with a small volume under the seat.
  • the tilting devices according to claims 1 and 2 enable the user of the seating furniture to choose either a firmly locked working or resting position or between intermediate positions of the seat and the backrest which can be adjusted in fine steps, or alternatively oscillating between working and rest position "dynamic" against a spring action acting on the back.
  • the spring action can be adjusted according to the individual needs of the user, and the seat lowers towards the rest position, while preventing the buttocks from sliding forward, but at the same time preventing the feet from being lifted off the floor.
  • the angle between the seat and backrest which determines the body seat angle, changes in a force-controlled manner as a function of the respective inclination of the seat, so that the working position changes in a physiologically favorable manner smaller, and in the rest position gives a large seat angle.
  • the tilting device according to the invention despite being extremely robust, has a surprisingly small construction volume and, when fitted under the seat, hardly appears visually.
  • FIGS. 1-6 The embodiments shown in FIGS. 1-6 are shown above in a partially sectioned side view, below in a top view with the seat removed.
  • a preferably frame-shaped seat support 1 is mounted in bearings 2a of a housing 3 via a pivot axis 2.
  • the usually padded seat attached to the seat support 1 is designated with la.
  • the bearings 2a are arranged in the region of the front edge 1b of the seat, as a result of which the height remains constant when the seat support 1 is adjusted in inclination and the thighs of the user seated 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.
  • it comprises a guide for horizontally movable, spring-loaded locking bolts 11 in the form of a locking box 19.
  • an actuating lever 13 penetrating the housing 3 and acting on an unlocking slide 12 is provided, by its actuation the unlocking slide 12 is moved up and down, as a result of which a horizontal movement of the latching bolts 11 occurs via the inclined plane 20 and the unlocking bolts 21 sliding thereon.
  • the parts described so far represent the basic building block of the inclination device according to the invention, from which one can then arrive at simpler or more convenient models in a production-technically favorable manner, preferably only in the final assembly.
  • a leaf spring is used as the spring element 5.
  • the prestress of the spring element 5 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 into a locking hole 28 of the locking plate 10, so that the inclination of the seat 1 is locked in the selected position, or all locking bolts 11 are locked out, so that the user of the seating furniture counteracts the force the spring element 5 can sit swinging "dynamically".
  • the pivot axis 2 of the seat support 1 has a plurality of levers 4, on the ends of which are suspended spring elements in the form of tension springs 5b, 5c, the other ends of which are partly fixed to fastening eyes 6 and partly to a strip 24.
  • the 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 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 adjust only one or two springs 5c to adjust 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 so that the distance between the pivot 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 pivot axis 8b of the backrest bracket leg 8.
  • This positively controlled inclination adjustment takes into account today's knowledge of optimal ergonomics.
  • the seat backrest arrangement corresponds to that in FIG. 2, but the user loads are absorbed here by a compression spring 5a, which is arranged at the bottom of the housing 3 and at the top of one on the seat support 1 Counter bearing 31 supports.
  • a compression spring instead of a compression spring, several, preferably concentrically arranged compression springs can also be provided.
  • the spring force is adjusted via the adjusting element 7, which is designed as a screw and its actuating button 7a.
  • the adjusting element 7 penetrates the housing 3 in the threaded eye 3a.
  • FIG. 4 the user loads are absorbed by a spring element 5 designed as a leaf spring, as in FIG. 1, but instead of a rigid one, the embodiment according to FIG. 4 has a movable backrest support 16 which is positively coupled to the seat support 1 via the bracket 9, as in FIG Figures 2 and 3.
  • 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. 5 and Fig.6 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 each offset by half, so that only one of the locking bolts 11 lying in the same horizontal plane can snap into a locking hole 28.
  • the bolts 11 cannot accidentally jump out of a locked position in a locking hole 28, they each have a nose 30, so that when the lever 13 is actuated, they can only be brought out of their locking hole 28 when the user pushes backwards Pushes 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)

Abstract

Kompakte, optisch unauffällig unter dem Sitz anxubringende Neigungsvorrichtung für Sitzmöbel, welche einerseits fest arretierte, in der neigung feinstufig wählbare Sitzpositionen, und andererseits ein pendelndes, dynamisches Sitzen gegen individuell einstellbare Federkraft ermöglicht. Im Sinne eines Baukastensystems sind einfache Modelle mit starrer Lehne, oder komfortablere Modelle mit eigenbeweglicher, mit der Neigung des Sitzes in einem vorgegebenen Neigungsverhältnis zwangsgekoppelter Lehne herstellbar.Compact, optically unobtrusive tilting device for seating furniture, which on the one hand is firmly locked, the seating positions can be selected in the incline, and on the other hand enables a swinging, dynamic sitting against individually adjustable spring force. In the sense of a modular system, simple models with rigid backrests, or more comfortable models with self-movable backrests, which are positively coupled with the inclination of the seat in a predetermined inclination ratio, can be produced.

Description

Die Erfindung betrifft eine Neigungsvorrichtung für Sitzmöbel nach dem Oberbegriff der Ansprüche 1 und 2.The invention relates to an inclination device for seating furniture according to the preamble of claims 1 and 2.

Eine solche Neigungsvorrichtung ist bekannt aus dem DT-GM 75 27 802.Such a tilting device is known from DT-GM 75 27 802.

Aus der DT-OS 23 32 596 ist ein Sitzmöbel 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 eine 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 DT-OS 23 32 596 a piece of seating is known, in which the seat is pivotally mounted in the area of the front edge of the seat in support arms mounted on the base frame about a horizontal axis, and a mechanical locking device and a tension spring are provided in an armrest, the Locking device is lockable or releasable in stages and the tension spring acts between the locking device and the seat against the force exerted by the user.

Aus der DT-OS 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 DT-OS 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 can be adjusted in its prestress, which between the seat and the bracket works.

Aus der DT-PS 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 DT-PS 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 dem DT-GM 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 the DT-GM 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 in the negative locking elements snap-in positive locking elements.

Die 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, the known embodiments are capable of meeting the current ergonomic and production requirements technology either not enough at all, or are designed in such a way that they are only suitable for 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, eine Neigungsvorrichtung für Sitzmöbel zu schaffen, welche in ergonomisch optimierter Weise eine fest arretierte konzentrierte Arbeitsstellung und entspannte Ruhestellung mit Zwischenstellungen des Benutzers einerseits, und ein pendelndes, "dynamisches" Sitzen gegen Federwirkung andererseits gestattet, und gleichzeitig in produktionstechnisch günstiger Weise die Herstellung einfacherer und komfortablerer Modelle im Sinne eines Baukastensystems ermöglicht. Dabei soll die Neigungsvorrichtung auch optisch unauffällig mit kleinem Bauvolumen unter dem Sitz anbringbar sein.It is therefore the object of the invention to provide a tilting device for seating which, in an ergonomically optimized manner, allows a firmly locked concentrated working position and relaxed rest position with intermediate positions of the user on the one hand, and a swinging, "dynamic" sitting against spring action on the other hand, and at the same time in Production-technically favorable way allows the production of simpler and more comfortable models in the sense of a modular system. The inclination device should also be optically inconspicuous with a small volume under the seat.

Erfindungsgemäss wird diese Aufgabe durch die in den kennzeichnenden Teilen der Ansprüche 1 und 2 angegebenen Merkmale gelöst.According to the invention, this object is achieved by the features specified in the characterizing parts of claims 1 and 2.

Die Neigungsvorrichtungen nach den Ansprüchen 1 und 2 ermöglichen es dem Benutzer des Sitzmöbels, entweder jeweils eine fest arretierte Arbeits- oder Ruhestellung oder dazwischen feinstufig verstellbare Zwischenstellungen des Sitzes und der Lehne zu wählen, oder aber pendelnd zwischen Arbeits-und Ruhestellung gegen eine am Rücken angreifende Federwirkung "dynamisch" zu sitzen. Dabei kann die Federwirkung gemäss den individuellen Bedürfnissen des Benutzers eingestellt werden, und senkt sich die Sitzfläche zur Ruhestellung hin ab, wobei zwar ein Rutschen des Gesässes nach vorn verhindert, gleichzeitig aber dennoch ein Abheben der Füsse vom Boden vermieden wird.The tilting devices according to claims 1 and 2 enable the user of the seating furniture to choose either a firmly locked working or resting position or between intermediate positions of the seat and the backrest which can be adjusted in fine steps, or alternatively oscillating between working and rest position "dynamic" against a spring action acting on the back. The spring action can be adjusted according to the individual needs of the user, and the seat lowers towards the rest position, while preventing the buttocks from sliding forward, but at the same time preventing the feet from being lifted off the floor.

Beim Ausbau der Grundkonzeption nach Anspruch 1 mit einer beweglich angekoppelten Rückenlehne nach Anspruch 2 ändert sich bei jeder Sitzweise der den Körpersitzwinkel 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.When expanding the basic concept according to claim 1 with a movably coupled backrest according to claim 2, the angle between the seat and backrest, which determines the body seat angle, changes in a force-controlled manner as a function of the respective inclination of the seat, so that the working position changes in a physiologically favorable manner smaller, and in the rest position gives 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.

Die Neigungsvorrichtung nach der Erfindung weist in jedem Fall trotz grösster Robustheit ein überraschend kleines Bauvolumen auf, und tritt, unter dem Sitz angebracht, optisch kaum in Erscheinung.In any case, the tilting device according to the invention, despite being extremely robust, has a surprisingly small construction volume and, when fitted under the seat, hardly appears visually.

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

  • Fig.l eine Ausführungsform mit starr am Sitz befestigter Lehne und einer Blattfeder,
  • Fig.2 eine Ausführungsform mit beweglicher Lehne und vorn am Sitzträger angreifenden Zugfedern,
  • Fig.3 eine Ausführungsform mit beweglicher Lehne und einer Druckfeder,
  • Fig.4 eine Ausführungsform mit beweglicher Lehne und einer Blattfeder,
  • Fig.5 eine Ausführungsform mit beweglicher Lehne und am Schenkel des Lehnenträgers angreifenden Zugfedern, und
  • Fig.6 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:
  • Fig.l an embodiment with rigid backrest and a leaf spring,
  • 2 shows an embodiment with a movable backrest and tension springs acting on the seat support at the front,
  • 3 shows an embodiment with a movable backrest and a compression spring,
  • 4 shows an embodiment with a movable backrest and a leaf spring,
  • 5 shows an embodiment with a movable backrest and tension springs acting on the leg of the backrest support, and
  • 6 shows a preferred embodiment of the locking device of the inclination device.

Die in den Figuren 1-6 dargestellten Ausführungsformen sind oben in teilweise geschnittener Seitenansicht, darunter in Draufsicht bei entferntem Sitz dargestellt.The embodiments shown in FIGS. 1-6 are shown above in a partially sectioned side view, below in a top view with the seat removed.

Bei allen Ausführungsformen ist ein vorzugsweise rahmenförmig ausgebildeter Sitzträger 1 über eine Schwenkachse 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 lb 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 in bearings 2a of a housing 3 via a pivot axis 2. The usually padded seat attached to the seat support 1 is designated with la. The bearings 2a are arranged in the region of the front edge 1b of the seat, as a result of which the height remains constant when the seat support 1 is adjusted in inclination and the thighs of the user seated 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 eine Lagerung 8a zur Aufnahme des unteren Schenkels eines beweglichen Lehnenträgers auf. Ferner umfasst es eine - der Uebersichtlichkeit wegen nur in Fig.6 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 5 auf. Schliesslich ist ein das Gehäuse 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 the sake of clarity only shown in FIG. 6, it comprises 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 bias of the spring elements 5. Finally, an actuating lever 13 penetrating the housing 3 and acting on an unlocking slide 12 is provided, by its actuation the unlocking slide 12 is moved up and down, as a result of which a horizontal movement of the latching 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 inclination device according to the invention, from which one can then arrive at simpler or more convenient models in a production-technically favorable manner, preferably only in the final assembly.

In Fig.l 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.
In Fig.l a particularly simple, inexpensive embodiment is shown:
  • Here, the bearing 8a on the housing 3 remains unused, and the back 23 is rigid, integrally connected to the seat la.

Als Federelement 5 findet eine Blattfeder Verwendung. Die Vorspannung des Federelementes 5 kann vom Benutzer in einfacher Weise durch Betätigen des Betätigungsknopfes 7a eingestellt werden. Dabei wirkt das als Schraube ausgebildete Verstellelement 7 über ein Druckstück 22 auf die Blattfeder, die sich andererseits am als Gegenlager ausgebildeten Sitzträger 1 abstützt. Das Gewindeauge 3a ist im Gehäuse 3 integriert, so dass der Teileaufwand und die Baugrösse desselben wesentlich verkleinert werden.A leaf spring is used as the spring element 5. The prestress of the spring element 5 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 leaf spring via a pressure piece 22, which is supported on the other hand on the seat support 1 designed as a counter bearing. 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 Sitzes l in der gewählten Stellung arretiert ist, oder werden alle Rastbolzen 11 ausgerastet, so dass der Benutzer des Sitzmöbels gegen die Kraft des Federelementes 5 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 into a locking hole 28 of the locking plate 10, so that the inclination of the seat 1 is locked in the selected position, or all locking bolts 11 are locked out, so that the user of the seating furniture counteracts the force the spring element 5 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.6 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.

Von der Einfach-Ausführung nach Fig.l kommt man ohne besonderen produktionstechnischen Aufwand zu der komfortableren Ausführung nach Fig.2 dadurch, dass in der dort unbenutzten Lagerung 8a nunmehr der untere Schenkel 8 eines winkelhebelartigen Lehnenträgers 16 mittels der zur Schwenkachse 2 des Sitzträgers 1 parallelen Schwenkachse 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 storage 8a not used there, the lower leg 8 of an angle lever-like backrest support 16 is now parallel to the pivot axis 2 of the seat support 1 Pivot axis 8b is stored.

Die Schwenkachse 2 des Sitzträgers 1 weist 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 Federn 5c können in ihrer Vorspannung mittels des Verstellelementes 7 durch Betätigung des Betätigungsknopfes 7a nach den individuellen Bedürfnissen des Benutzers eingestellt werden, die Federn 5b sind demgegenüber nicht verstellbar.The pivot axis 2 of the seat support 1 has a plurality of levers 4, on the ends of which are suspended spring elements in the form of tension springs 5b, 5c, the other ends of which are partly fixed to fastening eyes 6 and partly to a strip 24. The 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 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 Federn 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 adjust only one or two springs 5c to adjust 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 Schwenkachse 2 des Sitzträgers 1 und der Lasche 9 etwa doppelt so gross ist wie der Abstand zwischen der Lasche 9 und der Schwenkachse 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 so that the distance between the pivot 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 pivot 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 Federn 5b, 5c pendelndes, "dynamisches" Sitzen einstellbar.By means of the actuating lever 13, either locked, finely adjustable, "static" sitting, or "dynamic" sitting oscillating against the forces of the springs 5b, 5c can be adjusted.

Bei der in Fig.3 dargestellten Ausführungsform entspricht die Sitz-Lehnen-Anordnung der in Fig.2, jedoch werden die Benutzerlasten hier von einer Druckfeder 5a aufgenommen, die sich unten am Gehäuse 3, und oben an einem am Sitzträger 1 ange- .ordneten Gegenlager 31 abstützt. Statt einer Druckfeder können auch mehrere, vorzugsweise konzentrisch angeordnete Druckfedern vorgesehen sein. Die Einstellung der Federkraft erfolgt über das als Schraube ausgeführte Verstellelement 7 und dessen Betätigungsknopf 7a. Das Verstellelement 7 durchdringt das Gehäuse 3 im Gewindeauge 3a.In the embodiment shown in FIG. 3, the seat backrest arrangement corresponds to that in FIG. 2, but the user loads are absorbed here by a compression spring 5a, which is arranged at the bottom of the housing 3 and at the top of one on the seat support 1 Counter bearing 31 supports. Instead of a compression spring, several, preferably concentrically arranged compression springs can also be provided. The spring force is adjusted via the adjusting element 7, which is designed as a screw and its actuating button 7a. The adjusting element 7 penetrates the housing 3 in the threaded eye 3a.

In Fig. 4 werden die Benutzerlasten wie in Fig.1 von einem als Blattfeder ausgeführtem Federelement 5 aufgenommen, jedoch weist die Ausführungsform nach Fig.4 statt eines starren einen beweglichen, mit dem Sitzträger 1 über die Lasche 9 zwangsgekoppelten Lehnenträger 16 auf, wie in Figuren 2 und 3.In FIG. 4, the user loads are absorbed by a spring element 5 designed as a leaf spring, as in FIG. 1, but instead of a rigid one, the embodiment according to FIG. 4 has a movable backrest support 16 which is positively coupled to the seat support 1 via the bracket 9, as in FIG Figures 2 and 3.

Eine letzte, besonders bevorzugte Ausführungsform der Erfindung ist in Fig.5 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 angebrachten Hebelstücks 26 eingehängt sind. Mit ihrem anderen Ende sind die nicht verstellbaren Federn 5b an der Schwehkachse 2 des Sitzträgers 1 eingehängt, und die verstellbaren Federn 5c an einer Leiste 25, welche auf dem als Schraube ausgebildeten Verstellelement 7 geführt ist.
A final, particularly preferred embodiment of the invention is shown in FIG. 5:
  • Here, the user loads transmitted from the seat support 1 via the tab 9 to the backrest leg 8 are absorbed by spring elements which are designed as tension springs 5b, 5c and are suspended on the end of a lever piece 26 attached to the backrest leg 8. With their other end, the non-adjustable springs 5b are suspended on the pivot axis 2 of the seat support 1, and the adjustable springs 5c on a bar 25 which is guided on the adjusting element 7 designed as a screw.

Die grossen Vorteile der Ausführungsform nach Fig.5 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.l der Lehnenträgerschenkel 8 hier nicht weggelassen werden kann, wird durch die genannten Vorteile überwogen.The great advantages of the embodiment according to FIG. 5 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 of that in the case of an embodiment of the seating furniture with a rigid, integral backrest 23, as in FIG. 1 the backrest leg 8 cannot be omitted here, the advantages mentioned outweigh the advantages.

In Fig. 5 und Fig.6 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 Löcherreihen 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 Bolzen 11 und der Löcher 28 bemerkenswert gering gehalten.In Fig. 5 and Fig.6, 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 each offset by half, 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 bolts 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 powerful design of the bolts 11 and the holes 28.

Die horizontale Bewegung der Bolzen 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 bolts 11 is brought about by the fact that the inclined plane 20 of the unlocking slide 12 during its upward and downward movement, horizontal forces are exerted on the unlocking bolts 21 attached to the locking bolts 11.

Wird der Entriegelungsschieber 12 durch Betätigung des Hebels 13 ganz nach unten gedrückt, so rasten beide 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 slide 12 is pushed all the way down by actuating the lever 13, then in the end position both bolts 11 snap 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 Bolzen 11 aus einer in ein Rastloch 28 eingerasteten Stellung nicht ungewollt herausspringen k3nnen, weisen sie jeweils eine Nase 30 auf, so dass sie bei Betätigung des Hebels 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 bolts 11 cannot accidentally jump out of a locked position in a locking hole 28, they each have a nose 30, so that when the lever 13 is actuated, they can only be brought out of their locking hole 28 when the user pushes backwards Pushes 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 angebracht 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
  • la Sitzla seat
  • lb Sitzvorderkantelb seat front edge
  • 2 Schwenkachse (des Sitzträgers)2 swivel axis (of the seat support)
  • 2a Lager (der Schwenkachse)2a bearing (the swivel axis)
  • 3 Gehäuse3 housing
  • 3a Gewindeauge3a threaded eye
  • 4 Hebel4 levers
  • 5 Federelement5 spring element
  • 5a Federelement (Druckfeder)5a spring element (compression spring)
  • 5b Federelement (Zugfeder)5b spring element (tension spring)
  • 5c Federelement (Zugfeder verstellbar)5c spring element (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 Lagerung (am Gehäuse)8a storage (on the housing)
  • 8b Schwenkachse (des Lehnenträgerschenkels)8b swivel 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 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)
  • 31 Gegenlager (für Druckfeder 5a in Fig.3)31 counter bearing (for compression spring 5a in Fig. 3)

Claims (10)

1. Neigungsvorrichtung für Sitzmöbel mit einem unterhalb des Sitzes angeordneten, am Untergestell des Sitzmöbels gelagerten Gehäuse, 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 vorgesehen ist, und in welchem ferner mindestens ein Federelement vorgesehen ist, das sich an seinem einen Ende an dem Gehäuse abstützt, und über sein anderes Ende auf den Sitzträger entgegen der Richtung der Benutzerlast einwirkt, dadurch gekennzeichnet, dass das Federelement (5) eine in ihrer Vorspannung, einstellbare, mechanische Feder ist, und dass der Sit.träger (1) mit dem Gehäuse (3) über eine mechanische Fes;stelleinrichtung verbunden ist, welche einerseits au: in mindestens zwei zu der Schwenkachse (2) des Sitzt ägers (1) senkrechten Ebenen aufeinanderfolgend angeordneten, gegeneinander versetzten, negativen Rastelamenten (28), und andererseits aus in die negativen Rastelemente (28) einrastbaren, positiven Rastelementen (11) berteht, und dass die Feststelleinrichtung mittels eines der Benutzer des Sitzmöbels zugänglichen, bistabilen Betätigngshebels (13) derart betätigbar ist, dass in der einen St llung des Betätigungshebels (13) kein und in der anderen Stellung ein positives Rastelement in ein negatives Rastelement eingerastet ist.1.Inclination device for seating furniture with a housing arranged below the seat and mounted on the underframe of the seating furniture, in which the seat support is pivotally mounted about a horizontal axis in the area of the front edge of the seat, and in which further storage for the leg of a seat is provided towards the center of the seat angle arm-like backrest support is provided, and in which at least one spring element is also provided, which is supported at one end on the housing and acts on the seat support against the direction of the user load via its other end, characterized in that the spring element (5) is a mechanical spring that is adjustable in its pretension, and that the seat support (1) is connected to the housing (3) via a mechanical locking device which, on the one hand, is seated in at least two of the pivot axis (2) of the seat Aegers (1) vertical levels successively arranged, staggered, negative locking lament s (28), and on the other hand consists of positive locking elements (11) which can be locked into the negative locking elements (28), and that the locking device can be actuated by means of a bistable operating lever (13) which is accessible to the users of the seating furniture in such a way that in one of the St llung of the actuating lever (13) and in the other position a positive latching element is latched into a negative latching element. 2. Neigungsvorrichtung für Sitzmöbel mit einem unterhalb des Sitzes angeordneten, am Untergestell des Sitzmöbels gelagerten Gehäuse, 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 vorgesehen ist, und in welchem. ferner mindestens ein Federelement vorgesehen ist, das. sich an seinem einen Ende an dem Gehäuse abstützt, und über sein anderes Ende auf den Sitzträger entgegen der Richtung der Benutzerlast einwirkt, dadurch gekennzeichnet, dass das Federelement (5) eine in ihrer Vorspannung einstellbare, mechanische Feder ist, und dass der Sitzträger (1) mit dem Gehäuse (3) über eine mechanische Feststelleinrichtung verbunden ist, welche einerseits aus in mindestens zwei zu der Schwenkachse (2) des Sitzträgers (1) senkrechten Ebenen aufeinanderfolgend angeordneten, gegeneinander versetzten, negativen Rastelementen (28), und andererseits aus in die negativen Rastelemente (28) einrastbaren, positiven Rastelementen (11) besteht, und dass die Feststell- 4 einrichtung mittels eines dem Benutzer des Sitzmöbels zugänglichen, bistabilen Betätigungshebels (13) derart betätigbar ist, dass in der einen Stellung des Betätigungshebels (13) kein und in der anderen Stellung ein positives Rastelement in ein negatives Rastelement eingerastet ist, und dass in der weiteren Lagerung (8a) in dem Gehäuse (3) ein um eine zur Schwenkachse (2) des Sitzträgers (1) parallele weitere Schwenkachse (8b) schwenkbarer, mit dem Sitzträger (1) im schwenkachsenfernen Bereich mittels einer Lasche (9) verbundener, den unteren Schenkel des Lehnenträgers (16) bildender LehnenträRerschenkel (8) gelagert ist.2. Tilting device for seating furniture with a housing arranged beneath the seat, mounted on the underframe of the seating furniture, in which the seat support is pivotally mounted about a horizontal axis in the area of the front edge of the seat, and in which further storage for the leg of a seat is provided towards the center of the seat angle lever-like backrest support is provided, and in which. Furthermore, at least one spring element is provided which is supported at one end on the housing and acts on the seat support against the direction of the user load via its other end, characterized in that the spring element (5) has a mechanical preload which is adjustable Is spring, and that the seat support (1) is connected to the housing (3) via a mechanical locking device, which on the one hand consists of at least two planes arranged perpendicular to the pivot axis (2) of the seat support (1) successively arranged, mutually offset, negative locking elements (28), and on the other hand consists of positive locking elements (11) which can be locked into the negative locking elements (28), and that the locking device 4 can be actuated by means of a bistable actuating lever (13) which is accessible to the user of the seating furniture in such a way that in one position of the actuating lever (13) no and in the other position a positive latching element is latched into a negative latching element, and that in the further storage ( 8a) in the housing (3) a further pivot axis (8b) which can be pivoted about a pivot axis (8) parallel to the pivot axis (2) of the seat carrier (1) and which is connected to the seat carrier (1) in the region remote from the pivot axis by means of a tab (9), the lower leg of the Backrest carrier (16) forming backrest leg (8) is mounted. 3. Neigungsvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die negativen Rastelemente durch in zwei nebeneinander liegenden Ebenen angeordnete, gegeneinander versetzte Lochreihen in einem an der Rückseite des Lehnenträgerschenkels (8) befestigten Rastblech (10) gebildet werden, in welche zwei am Gehäuse (3) gelagerte Rastbolzen (11) abwechselnd einrastbar sind.3. Tilting device according to claim 2, characterized in that the negative locking elements are formed by two rows of juxtaposed, mutually offset rows of holes in a on the back of the backrest leg (8) attached locking plate (10), in which two on the housing (3rd ) stored locking bolts (11) can be snapped alternately. 4. Neigungsvorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass der Abstand zwischen der Schwenkachse (2) des Sitzträgers (1) und der den Sitzträger (1) mit dem Lehnenträgerschenkel (8) verbindenden Lasche (9) etwa dop-. pelt so gross ist wie der Abstand zwischen der Lasche (9) und der Schwenkachse (8b) des Lehnenträgerschenkels (8).4. Tilting device according to claim 2 or 3, characterized in that the distance between the pivot axis (2) of the seat support (1) and the seat support (1) with the backrest leg (8) connecting tab (9) approximately double. pelt is as large as the distance between the tab (9) and the pivot axis (8b) of the backrest support leg (8). 5. Neigungsvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Vorspannung des Feder elementes (5) durch ein dem Benutzer zugängliches Ver stellelement (7) einstellbar ist.5. Inclination device according to one of claims 1 to 4, characterized in that the bias of the spring element (5) by a user accessible Ver adjusting element (7) is adjustable. 6. Neigungsvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass mehrere Federelemente ( 5b, 5c) vorgesehen sind, von denen nur ein Teil (5c) mittels des Verstellelementes (7) hinsichtlich der Vorspannung einstellbar ist.6. Tilting device according to claim 5, characterized in that a plurality of spring elements (5b, 5c) are provided, of which only a part (5c) can be adjusted with regard to the pretension by means of the adjusting element (7). 7. Neigungsvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Sitzträger (1) an seiner Schwenkachse (2) einen Hebel (4) aufweist, zwischen dessen achsfernem Ende und Befestigungsaugen (6) im Gehäuse (3) als Federelement (5) mindestens eine Zugfeder vorgesehen ist.7. Tilting device according to one of claims 1 to 6, characterized in that the seat support (1) on its pivot axis (2) has a lever (4) between its distal end and fastening eyes (6) in the housing (3) as a spring element ( 5) at least one tension spring is provided. 8. Neigungsvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass zwischen dem Sitzträger (1) und dem Gehäuse (3) als Federelement (5) mindestens eine Druckfeder (5a) vorgesehen ist.8. Tilting device according to one of claims 1 to 6, characterized in that at least one compression spring (5a) is provided as a spring element (5) between the seat support (1) and the housing (3). 9. Neigungsvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dasc als Federelement (5) eine Blattfeder vorgesehen ist, die sich an ihrem einen Ende an einem am Sitzträger (1) ausgebildeten Lager, und an ihrem anderen Ende an dem Druckstück (22) eines als Stellschraube ausgebildeten Verstellelementes (7) abstützt, welches das Gehäuse (3) durch ein darin integriertes Gewindeauge (3a) durchdringt.9. Inclination device according to one of claims 1 to 6, characterized in that dasc as a spring element (5) Leaf spring is provided, which is supported at one end on a bearing formed on the seat support (1), and at its other end on the pressure piece (22) of an adjusting element (7) designed as an adjusting screw, which adjusts the housing (3) by a therein Integrated thread eye (3a) penetrates. 10. Neigungsvorrichtung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass der Lehnenträgerschenkel (8) an seiner Schwenkachse (8b) ein Hebelstück (26) aufweist, zwischen dessen achsfernem Ende und der Schwenkachse (2) des Sitzträgers (1) als Federelement (5) mindestens eihe Zugfeder (5b, 5c) vorgesehen ist.10. Tilting device according to one of claims 2 to 6, characterized in that the backrest leg (8) on its pivot axis (8b) has a lever piece (26) between its distal end and the pivot axis (2) of the seat support (1) as a spring element (5) at least one tension spring (5b, 5c) is provided.
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
DE2748680 1977-10-29
DE19772748680 DE2748680A1 (en) 1977-10-29 1977-10-29 INCLINATION DEVICE FOR FURNITURE

Publications (2)

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

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Family Applications (1)

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

Country Status (5)

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

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DE3232771A1 (en) * 1982-09-03 1984-03-08 Wilkhahn Wilkening + Hahne GmbH + Co, 3252 Bad Münder WORK SEAT
EP0105180A2 (en) * 1982-09-03 1984-04-11 Wilkhahn Wilkening + Hahne GmbH + Co. Working-chair
EP0105180A3 (en) * 1982-09-03 1985-04-17 Wilkhahn Wilkening + Hahne Gmbh + Co. Working-chair
EP0228992A2 (en) 1986-01-07 1987-07-15 Provenda Marketing Ag Work chair, particularly office chair
US4763950A (en) * 1986-01-07 1988-08-16 Provenda Marketing Ag Tilting chair, especially office chair
DE3635044A1 (en) * 1986-10-15 1988-04-28 Rolf Voelkle ARMCHAIR
WO1997024955A1 (en) * 1996-01-08 1997-07-17 Imarc S.R.L. Device for adjusting the inclination of the seating portion in chairs in general
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US6074008A (en) * 1996-01-08 2000-06-13 Imarc S.P.A. Device for adjusting the inclination of the seating portion in chairs in general
EP1057429A1 (en) * 1999-06-04 2000-12-06 PRO-CORD s.r.l. "Chair with synchronized tilting seat and back"
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Also Published As

Publication number Publication date
EP0001846B1 (en) 1981-04-29
IT7828875A0 (en) 1978-10-18
US4384741A (en) 1983-05-24
IT1099937B (en) 1985-09-28
AT374670B (en) 1984-05-25
DE2748680A1 (en) 1979-05-10
ATA600978A (en) 1983-10-15
DE2860656D1 (en) 1981-08-06

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