EP0139939B1 - Seat support for chairs, particularly office swivel chairs - Google Patents

Seat support for chairs, particularly office swivel chairs Download PDF

Info

Publication number
EP0139939B1
EP0139939B1 EP84109535A EP84109535A EP0139939B1 EP 0139939 B1 EP0139939 B1 EP 0139939B1 EP 84109535 A EP84109535 A EP 84109535A EP 84109535 A EP84109535 A EP 84109535A EP 0139939 B1 EP0139939 B1 EP 0139939B1
Authority
EP
European Patent Office
Prior art keywords
seat bracket
seat
crosshead
clamping
plates
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
EP84109535A
Other languages
German (de)
French (fr)
Other versions
EP0139939A1 (en
Inventor
Konrad Neumüller
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.)
Sifa Sitzfabrik GmbH
Original Assignee
Neumueller Konrad
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 Neumueller Konrad filed Critical Neumueller Konrad
Priority to AT84109535T priority Critical patent/ATE47652T1/en
Publication of EP0139939A1 publication Critical patent/EP0139939A1/en
Application granted granted Critical
Publication of EP0139939B1 publication Critical patent/EP0139939B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—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
    • A47C1/027—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 clamps or friction locking members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18888—Reciprocating to or from oscillating
    • Y10T74/18984—Inclined ramp

Definitions

  • the invention relates to a seat support for chairs, in particular work swivel chairs, which can be connected via a support to a foot frame of the chair and, for the purpose of this connection, is equipped with a bearing block which receives the projecting end of the support, in particular non-positively, the seat support having a U-shaped base body has, and this bearing block is immovably inserted in this base body, as this seat support is equipped with a support body for carrying a seat surface resting on it and the position of the seat surface is adjustable in inclination to the base body, and the base body with a number of functional parts for it Height adjustment on the one hand and inclination adjustment of the seat surface is equipped on the other, these functional parts, with the exception of their manually actuating parts, are arranged within the legs of the U-shaped parts of the seat support and on which seat support the respective U-shaped n Parts of the base body and support body are connected to one another in an articulated manner and via intermeshing lamellae, of longitudinal and transverse lamella packages
  • the seat support is formed by two functional parts, usually a base body and a support body supporting the seat surface, which are articulated to one another and can be adjusted relative to one another in their inclined position.
  • the holder for the backrest can usually also be designed to be inclinable, and this seat support is equipped with locking parts in order to be able to set and hold the desired inclination position.
  • the support body for the seat surface is connected to the base body via an articulated connection, and the support body is additionally non-positively connected to a longitudinal disk set on a longitudinal disk set of the base body supported.
  • the lamellae of these lamellae packs which are meshing with one another, can be braced by means of a pressure element in the desired immersion depth, whereby the inclination of the support element to the base element is also changed.
  • the pressure body which is designed as a nut that can be screwed onto a threaded bolt in this embodiment, can tighten the slats by turning this nut clockwise, but counterclockwise these slats relax, so that the slats of the cross plate pack can move through the slats of the longitudinal plate pack .
  • the nut of the pressure body is embedded in a knob and can be screwed onto the threaded bolt with it.
  • the bracket for the backrest is guided vertically on a clamping head, which is connected to the base body via a joint.
  • the clamping head can be tilted about this joint, for which purpose the lamellae of the longitudinal lamella packet articulated on this clamping head are arranged so as to be longitudinally displaceable in a sleeve holding them.
  • the inclination of the seat and backrest can be adjusted at the same time by means of this pressure element, but tightening the slats requires a greater amount of manual force in order to be able to screw the nut firmly onto the threaded bolt or to loosen it again.
  • an eccentric is arranged in the base body about an adjustment axis, which, by correspondingly rotating its eccentric surfaces on the base body, positively engages or lifts off.
  • the invention has for its object to provide a seat support for chairs in which the parts to be adjusted, adjusted without great effort, and held after their adjustment in the desired inclination position and in addition, these parts save space and not directly accessible from the outside Seat supports can be accommodated, as can the pressure for the bracing of the parts can be easily adjusted.
  • this object is achieved with a seat support of the type mentioned solved in that the U-shaped support body is equipped with at least one perpendicular to this cross strut that the extending in the direction of the longitudinal central axis of the seat bracket slats of the longitudinal plate pack are mounted on the one hand on the hinge pin of the clamping body and on the other at least one bearing pin of the clamping head that the perpendicular to the direction of the longitudinal center axis of the seat support slats of the transverse plate pack are mounted on the same on the same bearing pin of the clamping body and on the other on a bearing pin of the base body that the clamping body of at least one sitting on a bolt and against the leg of the support body supporting spring and a trigger actuating it is formed that a bearing block is provided between the plate packs and the leg of the support body for the transmission of the tension force of the spring to the plates of the plate packs, and that for actuating this bearing block Trigger lever is connected to this, the elongation of which can be
  • the clamping body for the non-positive connection of the individual plate packs can be made very compact, and yet it has sufficient rigidity to exert a high surface pressure on the individual plates of the plate packs via its adjacent pressure plate.
  • the seat support 1 is essentially formed by a base body 2, a base part 3, a clamping body in the form of a clamping device 4 together with bracing 5 for the inclination of a seat surface 6 and a backrest (not shown in the drawing) and articulated on a support bracket 7, the bracket is axially guided in a clamping head 8.
  • the seat support 1 and thus its base body 2 is formed from a U-shaped sheet metal part, which is equipped with a series of recesses 9 and bores 10 for the implementation and storage of levers 11 and axes 12, as well as with a bearing block 13 for the positive connection of the support 14 of the seating is formed.
  • the bearing block 13 is provided in the region of one end of this base body, and this is formed by a sheet metal part which has a bore 17 . Coaxial to this bore 17 is a further bore 18 of different diameters for the free end provided with a conical end 19 of the column. In the area of the free end 20 of the base body 2 and thus in the vicinity of this bearing block 13, the base body has cramp-shaped formations 21 which serve to additionally strengthen the bearing block on this base body.
  • the legs 15, 16 of the U- Shaped base body 2 at its end facing away from the bearing block 13 various bores 10 "', of which two end bores for carrying out a bearing axis 12"' for the clamping head 8 and the bores 10 '' adjacent to these bores 10 for carrying out a further axis of rotation 24 for a cap 25 are intended.
  • Analogous to these arrangements of various bushings 9, 10, 2 further recesses 26 are provided on the intermediate web of the U-shaped base body, one of which is approximately square, for the insertion of a plurality of slats 27 of a transverse disk pack and for the articulation of this disk pack bearing eyes 28 for a hinge pin 29 this base body 2 are attached.
  • the base part 3 which acts functionally with the base body 2, is preferably T-shaped, one part of which, i. H. whose support body 30 from a U-shaped sheet and its other part, d. H. whose crossbar 31 is formed by an angular, further sheet.
  • the two parts d. H. Support body 30 and crossbar 31 are preferably connected in a non-detachable manner by welding, and the crossbar 31 is provided with recesses 32 for fastening it to the seat 6 to be supported.
  • the U-shaped support body 30 of the base part 3 is provided on its legs 15, 16 with bores 10 for the passage of hinge axes 12 and / or the release lever 23, the hinge axis 12 being provided in the immediate vicinity of the crossbar 31 and the other recesses 34 , 35 for the release lever 23 are attached along the legs 36, 37 of the U-shaped base body 2.
  • the clamping device 4 and the bracing 5 for the inclination adjustment of the seat surface 6 and the back surface ie. H.
  • Support bracket 7, provided, which consists essentially of the two plate packs 27, 38 and the non-positively acting tension 5 on these packets.
  • the disk packs 27, 38 are formed by a longitudinal disk pack 38 and a transverse packet 27 running transversely thereto, the lamellae of which are held together by the individual disk combs by base plates 57, 58 and by the clamping pressure of the bracing 5.
  • the bracing 5 itself consists of a bearing block 39, which is held in hinge pins 40, 41, which in turn are supported in the legs 36, 37 of the U-shaped base part 3, and which bearing block 39 has an indentation 42 between the bearings on the bearing bolts has the free end 43 of the release lever 11.
  • the indentation 42 for this free end 43 is designed in the form of a groove, and compression springs 44 are provided around the bearing bolts 40, 41, which are supported resiliently between the one leg 37 of the base part 3 and the bearing block 39 itself.
  • pressure plates 45, 46 are provided, through which the bearing bolts 40, 41 are also guided and which by means of these bolts on the U-shaped base 3 remain held.
  • the bearing block 39 acts in a force-fitting manner, and this bearing block can only be lifted off the pressure plate when the release lever 11 is pressed with a force acting against the pressure of the springs 44.
  • a length compensation is provided on the release lever, this length compensation being formed by sleeves 47, 48 with conical contact surfaces 49 and a cap sleeve 50 locking these sleeves.
  • a distance is provided between the sleeves 47, 48 themselves and the U-shaped leg 37 of the base part 3, which is preferably filled with a metallic disc 51 which sits on the bumps 52.
  • the release lever is provided with knobs 53 against which the sleeves are supported after the adjustment of their longitudinal distance.
  • the cap sleeve 50 as well as the sleeves 47, 48 themselves are provided with longitudinal grooves 54 which engage in a form-fitting manner after the length distance has been set and prevent the sleeves from turning back on their conical contact surfaces 49.
  • the clamping device that is to say the clamping device 4 and bracing 5 itself, which has the longitudinal disk pack 38 and the transverse disk pack 27, is mounted and guided via these packets both on the base part 3 and here in the bearing bolts 40, 41, 29 and 56, one end this longitudinal disk pack 38 is pivotably supported in one bearing pin 41 and the adjacent section of this disk pack is slidably guided on the other bearing pin 40.
  • the cross plate pack 27, which has approximately the shape of a triangle, is with one tip in the base body 2 and here around the bearing pin 29, which in the eyes 28 of the Base body 2 is mounted, as well as held on the further bearing bolts 40, 41.
  • the longitudinal plate pack 38 which in turn is rotatably supported at one end on the one bearing pin 41 and slidably guided on the adjacent bearing pin 40, is mounted with its other, free end 55 around a bearing pin 56 of the clamping head 8, so that with the same actuation of the Bracing 5, both the inclination of the seat 6 and the inclination of the back surface or the bracket 7 can be changed.
  • the base part 3 can be tilted about its articulation 10 'on the base body 2 in accordance with the change in the clamping device 4 and bracing 5 about its articulation, as a result of which the individual position of the seat surface 6 and / or the backrest surface, i. H. Support bracket 7, can be adjusted.
  • the individual position of the seat surface 6 and / or the backrest surface, i. H. Support bracket 7, can be adjusted.
  • an angular release lever 23 can be used be rotatably mounted in the base body 2 in such a way that this lever remains tensioned in a position shortly before the gas spring is triggered by a spring 59.
  • a crank 60 located on this lever presses the trigger pin of the gas spring and presses it inward until the desired height of the support 14 has been reached.
  • the lever 23 itself for triggering the gas spring is therefore not removed Pressure of the gas spring kept in this so-called rest position, but it rests in this position by the effect the tensioning spring 59, which is supported on the one hand against the release lever 23 and on the other hand against a bearing pin 61 on the base body 2.
  • the longitudinal plate pack 38 can be uncoupled accordingly, so that the transverse plate pack 27 and thus its slats together with pressure plates 45, 46 are retained, which are then by the same clamping device 4 and bracing 5 can be kept in the closed or rest position.
  • the base part 22 can be tilted about its articulated connection 10 ′ against the base body 2, as is also indicated in the tilting tendons 62 for the base part 22 or the support bracket 7 and the cap 25.

Description

Die Erfindung betrifft einen Sitzträger für Stühle, insbesondere Arbeitsdrehstühle, welcher über eine Stütze mit einem Fußgestell des Stuhles verbindbar und zum Zwecke dieser Verbindung mit einem das auskragende Ende der Stütze, insbesondere kraftschlüssig, aufnehmenden Lagerbock ausgestattet ist, wobei der Sitzträger einen U-förmigen Basiskörper aufweist, und dieser Lagerbock in diesem Basiskörper unverrückbar eingelegt ist, wie auch dieser Sitzträger mit einem Tragkörper für das Tragen einer auf diesem ruhenden Sitzfläche ausgerüstet ist sowie die Sitzfläche in deren Lage neigungsverstellbar zum Basiskörper ist, und der Basiskörper mit einer Reihe von Funktionsteilen für dessen Höhenverstellung zum einen und Neigungsverstellung dessen Sitzfläche zum anderen ausgestattet ist, wobei diese Funktionsteile, mit Ausnahme ihrer, sie manuell betätigenden Teile, innerhalb der Schenkel der U-förmigen Teile des Sitzträgers angeordnet sind und bei welchem Sitzträger die jeweils U-förmig geformten Teile von Basiskörper und Tragkörper gelenkig miteinander verbunden sowie über ineinander kämmende Lamellen, von Längs-und Querlamellenpaketen, von denen ein Teil am Basis- und Tragkörper und ein weiterer Teil am Basisträger und Tragbügel des Lehnenträgers gelenkig angeschlossen ist, und die Neigung von Basis- und Tragkörper, wie auch die des Tragbügels des Lehnenträgers mittels die Lamellen kraftschlüssig aneinander haltenden Spannkörpers in derren Neigungslage feststellbar sind.The invention relates to a seat support for chairs, in particular work swivel chairs, which can be connected via a support to a foot frame of the chair and, for the purpose of this connection, is equipped with a bearing block which receives the projecting end of the support, in particular non-positively, the seat support having a U-shaped base body has, and this bearing block is immovably inserted in this base body, as this seat support is equipped with a support body for carrying a seat surface resting on it and the position of the seat surface is adjustable in inclination to the base body, and the base body with a number of functional parts for it Height adjustment on the one hand and inclination adjustment of the seat surface is equipped on the other, these functional parts, with the exception of their manually actuating parts, are arranged within the legs of the U-shaped parts of the seat support and on which seat support the respective U-shaped n Parts of the base body and support body are connected to one another in an articulated manner and via intermeshing lamellae, of longitudinal and transverse lamella packages, some of which are articulated to the base and support body and another part to the base support and support bracket of the backrest support, and the inclination of base and support body, as well as that of the support bracket of the backrest support can be locked in their inclined position by means of the clamping bodies which hold the lamellas together.

Es ist bei Stühlen und hier insbesondere bei Arbeitsdrehstühlen bekannt, die Sitzfläche eines solchen Stuhles auf einem Sitzträger aufzulegen und diesen sowohl über eine Stütze mit dem Fußgestell des Stuhles, als auch diesen Sitzträger mit einem, eine Lehne tragenden Halter zu verbinden. Der Sitzträger wird dabei von zwei Funktionsteilen, in der Regel von einem Grundkörper und einem die Sitzfläche tragenden Tragkörper gebildet, welche gelenkig miteinander verbunden sind und gegeneinander in deren Neigungslage verstellt werden können. Analog dieser Neigungsverstellung des Tragkörpers und damit auch der Sitzfläche zum Grundkörper kann meistens auch der Halter für die Lehne neigungsverstellbar ausgeführt sein, und es ist dieser Sitzträger mit Feststellteilen ausgestattet, um die gewünschte Neigungslage einstellen und festhalten zu können.It is known for chairs, and in particular for work swivel chairs, to place the seat of such a chair on a seat support and to connect this to the foot frame of the chair via a support, as well as to connect this seat support to a holder carrying a backrest. The seat support is formed by two functional parts, usually a base body and a support body supporting the seat surface, which are articulated to one another and can be adjusted relative to one another in their inclined position. Analogous to this inclination adjustment of the support body and thus also the seat to the base body, the holder for the backrest can usually also be designed to be inclinable, and this seat support is equipped with locking parts in order to be able to set and hold the desired inclination position.

Bei einem, durch das deutsche Gebrauchsmuster DE-GM 72 39 551 bekannten Sitzträger für einen Arbeitsdrehstuhl dieser Art ist der Tragkörper für die Sitzfläche über eine gelenkige Verbindung mit dem Grundkörper verbunden, und es ist der Tragkörper zusätzlich über ein Querlamellenpaket an einem Längslamellenpaket des Grundkörpers kraftschlüssig abgestützt. Die Lamellen dieser Lamellenpakete, die ineinander kämmend, geführt sind lassen sich mittels eines Druckkörpers in der jeweils gewünschten Eintauchtiefe verspannen, wodurch auch der Tragkörper zum Grundkörper in dessen Neigung verändert wird. Der Druckkörper, der bei dieser Ausführung als eine auf einem Gewindebolzen aufschraubbare Mutter ausgeführt ist, kann durch Drehen dieser Mutter im Uhrzeigersinn die Lamellen verspannen, gegen den Uhrzeigersinn dagegen diese Lamellen entspannen, so daß die Lamellen des Querlamellenpaketes sich durch die Lamellen des Längslamellenpaketes bewegen können. Die Mutter des Druckkörpers ist in einem Knauf eingebettet und kann mit diesem auf dem Gewindebolzen geschraubt werden. Der Bügel für die Lehne ist an einem Klemmkopf vertikal geführt, der über ein Gelenk am Grundkörper angeschlossen ist. Um dieses Gelenk kann der Klemmkopf gekippt werden, wofür die Lamellen des an diesem Klemmkopf angelenkten Längslamellenpaketes in einer sie haltenden Hülse längsverschieblich angeordnet sind. Mittels dieses Druckkörpers lassen sich die Neigungen von Sitzfläche und Lehne gleichzeitig verstellen, doch bedarf das Verspannen der Lamellen einer größeren, manuellen Kraft, um die Mutter fest auf dem Gewindebolzen aufzuschrauben bzw. wieder lösen zu können.In a seat support for a work swivel chair of this type, known from the German utility model DE-GM 72 39 551, the support body for the seat surface is connected to the base body via an articulated connection, and the support body is additionally non-positively connected to a longitudinal disk set on a longitudinal disk set of the base body supported. The lamellae of these lamellae packs, which are meshing with one another, can be braced by means of a pressure element in the desired immersion depth, whereby the inclination of the support element to the base element is also changed. The pressure body, which is designed as a nut that can be screwed onto a threaded bolt in this embodiment, can tighten the slats by turning this nut clockwise, but counterclockwise these slats relax, so that the slats of the cross plate pack can move through the slats of the longitudinal plate pack . The nut of the pressure body is embedded in a knob and can be screwed onto the threaded bolt with it. The bracket for the backrest is guided vertically on a clamping head, which is connected to the base body via a joint. The clamping head can be tilted about this joint, for which purpose the lamellae of the longitudinal lamella packet articulated on this clamping head are arranged so as to be longitudinally displaceable in a sleeve holding them. The inclination of the seat and backrest can be adjusted at the same time by means of this pressure element, but tightening the slats requires a greater amount of manual force in order to be able to screw the nut firmly onto the threaded bolt or to loosen it again.

Um das Verspannen zweier, gegeneinander bewegbarer Teile an einem Drehstuhl mit geringerer, manueller Kraft auszuführen, ist nach der DE-OS 29 02 622 bekannt, zwischen den Schenkeln eines U-förmigen Tragkörpers für die Sitzfläche den Grundkörper des Sitzträgers einzulegen und diesen Grundkörper mit dem Tragkörper gelenkig zu verbinden. Um diese gelenkige Verbindung von Grundkörper und Tragkörper, läßt sich letzterer neigen, so daß auch die Sitzfläche bei Bedarf entsprechend geneigt werden kann. Der Grundkörper, der über eine Stütze mit dem Fußgestell des Stuhles verbunden ist, behält seine Lage bei und darf den Neigungsverstellungen der Sitzfläche nicht folgen. Um dabei die jeweilige Neigung zu fixieren, ist im Grundkörper ein Exzenter um eine Verstellachse angeordnet, der durch entsprechendes Drehen seiner Exzenterflächen am Grundkörper sich kraftschlüssig anlegt bzw. abhebt. Bei dieser Verspannung werden lediglich Wandflächen von Grundkörper und Tragkörper aneinander gepreßt bzw. voneinander abgehoben, und es wird bezweifelt, ob diese Flächen so stark aneinander gepreßt werden können, daß sie aneinander nicht mehr rutschen.In order to clamp two, mutually movable parts on a swivel chair with less manual force, it is known from DE-OS 29 02 622 to insert the base body of the seat support between the legs of a U-shaped support body for the seat surface and this base body with the To connect the supporting body in an articulated manner. The latter can be inclined around this articulated connection of the base body and the supporting body, so that the seat can also be inclined accordingly if necessary. The base body, which is connected to the base of the chair via a support, maintains its position and must not follow the inclination adjustments of the seat. In order to fix the respective inclination, an eccentric is arranged in the base body about an adjustment axis, which, by correspondingly rotating its eccentric surfaces on the base body, positively engages or lifts off. With this bracing, only wall surfaces of the base body and support body are pressed against one another or lifted off one another, and it is doubted whether these surfaces can be pressed against one another to such an extent that they no longer slide against one another.

Der Erfindung liegt die Aufgabe zugrunde, einen Sitzträger für Stühle zu schaffen, bei dem die zu verstellenden Teile, ohne großen Kraftaufwand, verstellt und nach deren Verstellung in der gewünschten Neigungslage festgehalten werden und bei dem zusätzlich diese Teile raumsparend und von außen nicht unmittelbar zugänglich am Sitzträger untergebracht werden können, wie auch der Preßdruck für die Verspannung der Teile einfach nachgestellt werden kann.The invention has for its object to provide a seat support for chairs in which the parts to be adjusted, adjusted without great effort, and held after their adjustment in the desired inclination position and in addition, these parts save space and not directly accessible from the outside Seat supports can be accommodated, as can the pressure for the bracing of the parts can be easily adjusted.

Gemäß der Erfindung wird diese Aufgabe bei einem Sitzträger der eingangs genannten Art dadurch gelöst, daß der U-förmige Tragkörper mit mindestens einer, senkrecht zu diesem verlaufenden Querstrebe ausgestattet ist, daß die in Richtung der Längsmittelachse des Sitzträgers verlaufenden Lamellen des Längslamellenpaketes zum einen am Gelenkbolzen des Spannkörpers und zum anderen an mindestens einem Lagerbolzen des Klemmkopfes gelagert sind, daß die senkrecht zur Richtung der Längsmittelachse des Sitzträgers verlaufenden Lamellen des Querlamellenpaketes zum einen an dem gleichen Lagerbolzen des Spannkörpers und zum anderen an einem Lagerbolzen des Basiskörpers gelagert sind, daß der Spannkörper von mindestens einer auf einem Bolzen sitzenden und sich gegen den Schenkel des Tragkörpers abstützenden Feder und einer sie betätigenden Auslösung gebildet wird, daß für das Übertragen der Spannkraft der Feder auf die Lamellen der Lamellenpakete ein Lagerbock zwischen den Lamellenpaketen und dem Schenkel des Tragkörpers vorgesehen ist, und daß für das Betätigen dieses Lagerbocks ein Auslösehebel an diesem angeschlossen ist, dessen Längung mittels eines Längenausgleichs für das Nachstellen der Spannkraft der Feder veränderbar ist.According to the invention, this object is achieved with a seat support of the type mentioned solved in that the U-shaped support body is equipped with at least one perpendicular to this cross strut that the extending in the direction of the longitudinal central axis of the seat bracket slats of the longitudinal plate pack are mounted on the one hand on the hinge pin of the clamping body and on the other at least one bearing pin of the clamping head that the perpendicular to the direction of the longitudinal center axis of the seat support slats of the transverse plate pack are mounted on the same on the same bearing pin of the clamping body and on the other on a bearing pin of the base body that the clamping body of at least one sitting on a bolt and against the leg of the support body supporting spring and a trigger actuating it is formed that a bearing block is provided between the plate packs and the leg of the support body for the transmission of the tension force of the spring to the plates of the plate packs, and that for actuating this bearing block Trigger lever is connected to this, the elongation of which can be changed by means of a length compensation for adjusting the tensioning force of the spring.

Durch diese Maßnahmen wird ein Sitzträger geschaffen, der. neben der fuktionellen Trennung von Abstützung und Verstellung alle erforderlichen Funktionsteile in sich selbst vereinigt und diese einem Zugriff von außen weitgehend entzieht. Die Funktionsteile der Sitzflächen- und Rückenlehnenverstellung lassen sich durch diese Ausführung außerordentlich kompakt gestalten, und sie haben zudem den Vorteil, daß sie infolge ihrer funktionellen Trennung voneinander nicht nachteilig, gegenseitig beeinflußt werden. Ein weiterer Vorteil der Funktionsteile der Sitzneigeverstellung und Lehnenverstellung kann darin gesehen werden, daß die aufeinander wirkenden Lamellenpakete unter ständigem Kraftschluß gehalten werden, und daß dieser Kraftschluß nur dann aufgehoben wird, wenn eine Verstellung erforderlich erscheint. Die Ausführung der Lamellenpakete, d. h. des Längs- und Querlamellenpaketes, ist in Form und Einfassung so gestaltet, daß sie auch eine Kippsicherheit gegen Torsion gewährleisten, so daß selbst beim Wackeln der Sitzfläche ein Aufheben der kraftschlüssigen Verbindung kaum ermöglicht wird und die zu verstellenden Teile sich gegenseitig nicht verkanten können. Der Spannkörper für das kraftschlüssige Verbinden der einzelnen Lamellenpakete kann sehr kompakt ausgeführt werden, und er weist dennoch eine ausreichende Steifigkeit auf, um einen hohen Flächendruck über dessen benachbarte Druckplatte auf die einzelnen Lamellen der Lamellenpakete auszuüben. Durch die Lagerung der Lamellenpakete an den, auch den Lagerbock haltenhaltenden Lagerbolzen werden diese in ihrer Lage ausreichend genau fixiert, so daß sie nur scherenförmig ineinander bewegt werden können, ohne dabei ihre Fixierung zu beeinträchtigen.These measures create a seat support that. In addition to the functional separation of support and adjustment, all the necessary functional parts are combined in themselves and largely removed from external access. The functional parts of the seat and backrest adjustment can be made extremely compact by this design, and they also have the advantage that they are not adversely affected due to their functional separation from one another. Another advantage of the functional parts of the seat tilt adjustment and backrest adjustment can be seen in the fact that the mutually acting plate packs are kept under constant frictional engagement, and that this frictional engagement is only released when an adjustment appears to be necessary. The execution of the plate packs, i. H. of the longitudinal and transverse plate pack, is designed in shape and edging so that they also ensure a tipping safety against torsion, so that even when the seat is wobbly, a lifting of the positive connection is hardly possible and the parts to be adjusted cannot mutually tilt. The clamping body for the non-positive connection of the individual plate packs can be made very compact, and yet it has sufficient rigidity to exert a high surface pressure on the individual plates of the plate packs via its adjacent pressure plate. By mounting the plate packs on the bearing bolts, which also hold the bearing block, they are fixed in their position with sufficient accuracy so that they can only be moved into one another like scissors without impairing their fixing.

. Weitere vorteilhafte Weiterbildungen der Erfindung können den verbleibenden Unteransprüchen entnommen werden.. Further advantageous developments of the invention can be found in the remaining subclaims.

In der Zeichnung ist eines der möglichen Ausführungsbeispiele der Erfindung schematisch dargestellt. Es zeigt :

  • Fig. 1 eine Seitenansicht auf einen Sitzträger in funktionsbereiter Version mit einer auf diesem angeordneten, jedoch nur strichpunktiert angedeuteten Sitzfläche,
  • Fig. 2 eine Draufsicht auf den Sitzträger gemäß Figur 1,
  • Fig. 3 eine Draufsicht auf den Basiskörper mit entferntem Grundkörper und Klemmkopf,
  • Fig. 4 eine Draufsicht auf den Grundkörper und den Klemmkopf nebst Lamellenpaketen, jedoch mit im Bereich der Lamellenpakete ausgeschnittenem Deckteil des Grundkörpers und mit einem nur strichpunktiert angedeuteten Basiskörper,
  • Fig. 5 eine vergrößerte Seitenansicht auf die Lamellenpakete, jedoch mit abgeschnittenem, einen Schenkel des U-förmigen Grundkörpers und nur teilweise dargestelltem Klemmkopf,
  • Fig. 6 eine Draufsicht auf den Grundkörper und den Klemmkopf gern. Fig. 5, wobei am Grundkörper auch der Auslösehebel für den Spannkörper angelenkt ist, und dieser Auslösehebel mit den Teilen für dessen Längsverspannung und eine Hutmuffe kurz vor deren Einschub auf die Spannteile, wobei die Hutmuffe halbseitig im Schnitt dargestellt ist und
  • Fig. 7 einen Schnitt durch das Längslamellenpaket und die Festspanneinrichtung in Blickrichtung der Schnittpfeile in Fig. 6.
One of the possible exemplary embodiments of the invention is shown schematically in the drawing. It shows :
  • 1 is a side view of a seat support in a ready-to-use version with a seat surface arranged thereon but only indicated by dash-dotted lines,
  • 2 shows a plan view of the seat support according to FIG. 1,
  • 3 is a plan view of the base body with the base body and clamping head removed,
  • 4 shows a plan view of the base body and the clamping head together with plate packs, but with the cover part of the base body cut out in the area of the plate packs and with a base body indicated only by dash-dotted lines,
  • 5 is an enlarged side view of the plate packs, but with a cut off, one leg of the U-shaped base body and only partially shown clamping head,
  • Fig. 6 likes a top view of the base body and the clamping head. Fig. 5, wherein the release lever for the clamping body is also articulated on the base body, and this release lever with the parts for its longitudinal bracing and a cap sleeve shortly before its insertion on the clamping parts, the cap sleeve being shown on one side in section and
  • 7 shows a section through the longitudinal disk pack and the clamping device in the viewing direction of the sectional arrows in FIG. 6.

Der Sitzträger 1 gemäß der Erfindung wird im wesentlichen von einem Basiskörper 2, einem Grundteil 3, einem Spannkörper in Form einer Klemmeinrichtung 4 nebst Verspannung 5 für die Neigung einer Sitzfläche 6 und einer in der Zeichnung nicht dargestellten und an einem Tragbügel 7 angelenkten Rückenlehne gebildet, wobei der Tragbügel in einem Klemmkopf 8 axial geführt ist. Der Sitzträger 1 und damit dessen Basiskörper 2 ist dabei aus einem U-förmigen Blechteil geformt, welches mit einer Reihe von Ausnehmungen 9 und Bohrungen 10 für die Durchführung und Lagerung von Hebeln 11 und Achsen 12 ausgestattet ist, wie auch mit einem Lagerbock 13 für die formschlüssige Verbindung der Stütze 14 des Sitzmöbels gebildet. Während die Bohrungen 10 und Ausnehmungen 9 überwiegend an den U-förmigen Schenkeln 15, 16 des Basiskörpers 2 vorgesehen sind, ist der Lagerbock 13 im Bereich des einen Endes dieses Basiskörpers vorgesehen, und es wird dieser von einem Blechteil gebildet, welches eine Bohrung 17 aufweist. Koaxial zu dieser Bohrung 17 ist eine weitere Bohrung 18 unterschiedlichen Durchmessers für das freie und mit einer Konizität 19 versehene Ende der Säule vorgesehen. Im Bereich des freien Endes 20 des Basiskörpers 2 und somit in der Nähe dieses Lagerbockes 13 weist der Basiskörper krampenförmige Ausformungen 21 auf, die einer zusätzlichen Verfestigung des Lagerbockes an diesem Basiskörper dienen. an diesem gleichen Ende 20 des Basiskörpers 2 sind in der Nähe des Lagerbockes 13 Bohrungen 10 an den Schenkeln 15, 16 des U-förmigen Basiskörpers vorgesehen, von denen die eine am Eck der Schenkel vorgesehene Bohrung 10' der Durchführung der Drehachse 12' eines mit dem Basiskörper 2 zu verbindenden Grundteiles 3 und eine dieser benachbarten Bohrung 10" der Einführung eines Auslösehebels 23 zum Betätigen eines Hubmechanismus der Stütze 14 des Sitzmöbels dient. Etwa in der Mitte des Basiskörpers 2 weist einer dessen Schenkel 16 die eine U-förmige Ausnehmung 9 für das Durchführen des Auslösehebels 11 der Verspannung 5 auf. Ebenso weisen die Schenkel 15, 16 des U-förmigen Basiskörpers 2 an ihren dem Lagerbock 13 abgewandten Ende diverse Bohrungen 10"' auf, von denen zwei endseitige Bohrungen dem Durchführen einer Lagerachse 12"' für den Klemmkopf 8 und die diesen Bohrungen 10"' benachbarten Bohrungen 10 dem Durchführen einer weiteren Drehachse 24 für eine Kappe 25 bestimmt sind. Analog diesen Anordnungen diverser Durchführungen 9, 10 sind an dem Zwischensteg des U-förmigen Basiskörpers 2 weitere Ausnehmungen 26 vorgesehen, von denen eine etwa quadratische, dem Durchstecken mehrerer Lamellen 27 eines Querlamellenpaketes dient und für die Anlenkung dieses Lamellenpaketes Lageraugen 28 für einen Gelenkbolzen 29 an diesem Basiskörper 2 angebracht sind.The seat support 1 according to the invention is essentially formed by a base body 2, a base part 3, a clamping body in the form of a clamping device 4 together with bracing 5 for the inclination of a seat surface 6 and a backrest (not shown in the drawing) and articulated on a support bracket 7, the bracket is axially guided in a clamping head 8. The seat support 1 and thus its base body 2 is formed from a U-shaped sheet metal part, which is equipped with a series of recesses 9 and bores 10 for the implementation and storage of levers 11 and axes 12, as well as with a bearing block 13 for the positive connection of the support 14 of the seating is formed. While the bores 10 and recesses 9 are mainly provided on the U-shaped legs 15, 16 of the base body 2, the bearing block 13 is provided in the region of one end of this base body, and this is formed by a sheet metal part which has a bore 17 . Coaxial to this bore 17 is a further bore 18 of different diameters for the free end provided with a conical end 19 of the column. In the area of the free end 20 of the base body 2 and thus in the vicinity of this bearing block 13, the base body has cramp-shaped formations 21 which serve to additionally strengthen the bearing block on this base body. at this same end 20 of the base body 2 there are 13 bores 10 on the legs in the vicinity of the bearing block 15, 16 of the U-shaped base body are provided, of which the one provided at the corner of the legs bore 10 'for the implementation of the axis of rotation 12' of a base part 3 to be connected to the base body 2 and one of these adjacent bore 10 "for the introduction of a release lever 23 for Serves to actuate a lifting mechanism of the support 14 of the seating furniture. Approximately in the middle of the base body 2, one of its legs 16 has a U-shaped recess 9 for the implementation of the release lever 11 of the bracing 5. The legs 15, 16 of the U- Shaped base body 2 at its end facing away from the bearing block 13 various bores 10 "', of which two end bores for carrying out a bearing axis 12"' for the clamping head 8 and the bores 10 '' adjacent to these bores 10 for carrying out a further axis of rotation 24 for a cap 25 are intended. Analogous to these arrangements of various bushings 9, 10, 2 further recesses 26 are provided on the intermediate web of the U-shaped base body, one of which is approximately square, for the insertion of a plurality of slats 27 of a transverse disk pack and for the articulation of this disk pack bearing eyes 28 for a hinge pin 29 this base body 2 are attached.

Das Grundteil 3, das funktionell mit dem Basiskörper 2 wirkt, ist vorzugsweise T-förmig ausgeführt, wobei dessen einer Teil, d. h. dessen Tragkörper 30 von einem U-förmigen Blech und dessen anderer Teil, d. h. dessen Quersteg 31 von einem winkelförmigen, weiteren Blech gebildet wird. Die beiden Teile d. h. Tragkörper 30 und Quersteg 31 sind vorzugsweise durch Schweißen unlösbar verbunden, und es ist der Quersteg 31 mit Ausnehmungen 32 für dessen Befestigung ander zu stützenden Sitzfläche 6 versehen. Der U-förmige Tragkörper 30 des Grundteils 3 ist an dessen Schenkeln 15, 16 mit Bohrungen 10 für das Durchführen von Gelenkachsen 12 und/oder des Auslösehebels 23 versehen, wobei die Gelenkachse 12 unmittelbar in der Nähe des Quersteges 31 vorgesehen und die anderen Ausnehmungen 34, 35 für den Auslösehebel 23 entlang den Schenkeln 36, 37 des U-förmigen Basiskörpers 2 angebracht sind. Im Bereich des frei auskragenden Endes dieses Grundteiles 3 sind die Klemmeinrichtung 4 und die Verspannung 5 für die Neigeverstellung von Sitzfläche 6 und Lehnenfläche, d. h. Tragbügel 7, vorgesehen, wobei diese im wesentlichen von den zwei Lamellenpaketen 27, 38 und der kraftschlüssig auf diese Pakete wirkenden Verspannung 5 besteht. Die Lamellenpakete 27, 38 werden dabei von einem längslaufenden Lamellenpaket 38 und einen quer zu diesem verlaufenden Querpaket 27 gebildet, deren Lamellen durch die einzelnen Lamellenkämme durch Grundplatten 57, 58 und durch den Spanndruck der Verspannung 5 kraftschlüssig aneinander gehalten werden. Die Verspannung 5 selbst besteht aus einem Lagerbock 39, welcher in Gelenkbolzen 40, 41, die wiederum in den Schenkeln 36, 37 des U-förmigen Grundteiles 3 gelagert sind, gehalten wird und welcher Lagerbock 39 zwischen dessen Einlagerungen an den Lagerbolzen eine Eindrückung 42 für das freie Ende 43 des Auslösehebels 11 aufweist. Die Eindrückung 42 für dieses freie Ende 43 ist in Form einer Rille ausgeführt, und es sind um die Lagerbolzen 40, 41 Druckfedern 44 vorgesehen, die sich zwischen dem einen Schenkel 37 des Grundteiles 3 und dem Lagerbock 39 selbst federnd abstützen. Zwischen dem Lagerbock 39 und dem längslaufenden Lamellenpaket 38 einerseits und diesem Paket und dem anderen Schenkel 36 des U-förmigen Grundteils 3 andererseits, sind Druckplatten 45, 46 vorgesehen, durch die auch die Lagerbolzen 40, 41 geführt sind und die mittels dieser Bolzen an dem U-förmigen Grundteil 3 gehalten bleiben. Auf die eine dieser Druckplatten 45 wirkt der Lagerbock 39 kraftschlüssig ein, und es läßt sich dieser Lagerbock von der Druckplatte nur dann abheben, wenn an dem Auslösehebel 11 mit einer gegen den Druck der Federn 44 wirkenden Kraft gedrückt wird. Der Auslösehebel 11, welcher an seinem freien Ende 43 winkelförmig ausgeführt ist, ist mit diesem winkeligen Ansatz in der Eindrückung 42 gefaßt, und es ist dieses Ende derart am Außenmantel des U-förmigen Schenkels 37 des Grundteiles 3 abgestützt, daß beim Betätigen des Auslösehebels 11 dieser Hebel den Lagerbock 39 zum Schenkel 37 hin zieht, um auf diese Weise den Lagerbock von dessen Druckplatte 45 abzuheben. Um dabei den Auslösehebel 11 auf diesen Lagerbock 39 wirken zu lassen, ist auf dem Auslösehebel ein Längenausgleich vorgesehen, wobei dieser Längenausgleich von Hülsen 47, 48 mit konischen Anlaufflächen 49 und einer diese Hülsen arretierenden Hutmuffe 50 gebildet wird. Zwischen den Hülsen 47, 48 selbst und dem U-förmigen Schenkel 37 des Grundteils 3 ist ein Abstand vorgesehen, welcher vorzugsweise einer metallischen Scheibe 51 die auf Höckern 52 sitzt, ausgefüllt ist. Um dabei eine Längsverschiebung der Hülsen 47, 48 auf dem Auslösehebel 11 zu verhindern, ist der Auslösehebel mit Noppen 53 versehen, gegen die sich die Hülsen nach Einstellung deren Längsabstandes abstützen. Die Hutmuffe 50 wie auch die Hülsen 47, 48 selbst sind mit Längsrillen 54 versehen, welche nach Einstellen des Längenabstandes formschlüssig ineinander greifen und ein Zurückdrehen der Hülsen auf ihren konischen Anlaufflächen 49 verhindern.The base part 3, which acts functionally with the base body 2, is preferably T-shaped, one part of which, i. H. whose support body 30 from a U-shaped sheet and its other part, d. H. whose crossbar 31 is formed by an angular, further sheet. The two parts d. H. Support body 30 and crossbar 31 are preferably connected in a non-detachable manner by welding, and the crossbar 31 is provided with recesses 32 for fastening it to the seat 6 to be supported. The U-shaped support body 30 of the base part 3 is provided on its legs 15, 16 with bores 10 for the passage of hinge axes 12 and / or the release lever 23, the hinge axis 12 being provided in the immediate vicinity of the crossbar 31 and the other recesses 34 , 35 for the release lever 23 are attached along the legs 36, 37 of the U-shaped base body 2. In the region of the freely projecting end of this base part 3, the clamping device 4 and the bracing 5 for the inclination adjustment of the seat surface 6 and the back surface, ie. H. Support bracket 7, provided, which consists essentially of the two plate packs 27, 38 and the non-positively acting tension 5 on these packets. The disk packs 27, 38 are formed by a longitudinal disk pack 38 and a transverse packet 27 running transversely thereto, the lamellae of which are held together by the individual disk combs by base plates 57, 58 and by the clamping pressure of the bracing 5. The bracing 5 itself consists of a bearing block 39, which is held in hinge pins 40, 41, which in turn are supported in the legs 36, 37 of the U-shaped base part 3, and which bearing block 39 has an indentation 42 between the bearings on the bearing bolts has the free end 43 of the release lever 11. The indentation 42 for this free end 43 is designed in the form of a groove, and compression springs 44 are provided around the bearing bolts 40, 41, which are supported resiliently between the one leg 37 of the base part 3 and the bearing block 39 itself. Between the bearing block 39 and the longitudinal plate pack 38 on the one hand and this pack and the other leg 36 of the U-shaped base part 3 on the other hand, pressure plates 45, 46 are provided, through which the bearing bolts 40, 41 are also guided and which by means of these bolts on the U-shaped base 3 remain held. On one of these pressure plates 45, the bearing block 39 acts in a force-fitting manner, and this bearing block can only be lifted off the pressure plate when the release lever 11 is pressed with a force acting against the pressure of the springs 44. The release lever 11, which is angular at its free end 43, is gripped with this angular approach in the indentation 42, and this end is supported on the outer jacket of the U-shaped leg 37 of the base part 3 such that when the release lever 11 is actuated this lever pulls the bracket 39 towards the leg 37 in order to lift the bracket from its pressure plate 45 in this way. In order to let the release lever 11 act on this bearing block 39, a length compensation is provided on the release lever, this length compensation being formed by sleeves 47, 48 with conical contact surfaces 49 and a cap sleeve 50 locking these sleeves. A distance is provided between the sleeves 47, 48 themselves and the U-shaped leg 37 of the base part 3, which is preferably filled with a metallic disc 51 which sits on the bumps 52. In order to prevent a longitudinal displacement of the sleeves 47, 48 on the release lever 11, the release lever is provided with knobs 53 against which the sleeves are supported after the adjustment of their longitudinal distance. The cap sleeve 50 as well as the sleeves 47, 48 themselves are provided with longitudinal grooves 54 which engage in a form-fitting manner after the length distance has been set and prevent the sleeves from turning back on their conical contact surfaces 49.

Die Festspanneinrichtung, d. h. die Klemmeinrichtung 4 und Verspannung 5 selbst, die das Längslamellenpaket 38 und das Querlamellenpaket 27 aufweist, ist über diese Pakete sowohl am Grundteil 3 und hier in den Lagerbolzen 40, 41, 29 und 56 gelagert als auch geführt, wobei ein Ende dieses Längslamellenpaketes 38 in dem einen Lagerbolzen 41 kippbar gelagert und der benachbarte Abschnitt dieses Lamellenpaketes am anderen Lagerbolzen 40 gleitend geführt ist. Das Querlamellenpaket 27, welches etwa die Form eines Dreiecks aufweist, ist mit dessen einen Spitze in dem Basiskörper 2 und hier um den Lagerbolzen 29, welcher in den Augen 28 des Basiskörpers 2 gelagert ist, wie auch an den weiteren Lagerbolzen 40, 41 gehalten. Das Längslamellenpaket 38, welches wiederum mit seinem einen Ende an dem einen Lagerbolzen 41 drehbar gelagert und am benachbarten Lagerbolzen 40 gleitend geführt ist, ist mit dessen anderem, freien Ende 55 um einen Lagerbolzen 56 des Klemmkopfes 8 gelagert, so daß mit der gleichen Betätigung der Verspannung 5 sowohl die Neigung der Sitzfläche 6 als auch die Neigung der Lehnenfläche bzw. des Tragbügels 7 verändert werden können.The clamping device, that is to say the clamping device 4 and bracing 5 itself, which has the longitudinal disk pack 38 and the transverse disk pack 27, is mounted and guided via these packets both on the base part 3 and here in the bearing bolts 40, 41, 29 and 56, one end this longitudinal disk pack 38 is pivotably supported in one bearing pin 41 and the adjacent section of this disk pack is slidably guided on the other bearing pin 40. The cross plate pack 27, which has approximately the shape of a triangle, is with one tip in the base body 2 and here around the bearing pin 29, which in the eyes 28 of the Base body 2 is mounted, as well as held on the further bearing bolts 40, 41. The longitudinal plate pack 38, which in turn is rotatably supported at one end on the one bearing pin 41 and slidably guided on the adjacent bearing pin 40, is mounted with its other, free end 55 around a bearing pin 56 of the clamping head 8, so that with the same actuation of the Bracing 5, both the inclination of the seat 6 and the inclination of the back surface or the bracket 7 can be changed.

In dem hier dargestellten und beschriebenen Beispiel läßt sich das Grundteil 3 um dessen Anlenkung 10' am Basiskörper 2 entsprechend der Veränderung der Klemmeinrichtung 4 und Verspannung 5 um dessen Anlenkung kippen, wodurch die individuelle Lage der Sitzfläche 6 und/oder der Lehnenfläche, d. h. Tragbügels 7, eingestellt werden kann. Um einen ausreichenden Kraftschluß zwischen den eizelnen Lamellenpaketen 27, 38 zu ermöglichen, empfiehlt es sich, die Lamellen ziemlich dünn auszuführen, um auf diese Weise eine Vielzahl von Lamellen innerhalb der Schenkel 36, 37 des Grundteiles 22 unterzubringen.In the example shown and described here, the base part 3 can be tilted about its articulation 10 'on the base body 2 in accordance with the change in the clamping device 4 and bracing 5 about its articulation, as a result of which the individual position of the seat surface 6 and / or the backrest surface, i. H. Support bracket 7, can be adjusted. In order to enable a sufficient frictional connection between the individual plate packs 27, 38, it is advisable to make the plates rather thin in order to accommodate a large number of plates within the legs 36, 37 of the base part 22.

Der besseren Abstützung der Lamellenpakete 27, 38 und hier insbesondere des Längslamellenpaketes 38 und Einfassung desselben, kann dieses seitlich von stärkeren Grundplatten 57, 58 gehalten sein, die dieses Lamellenpaket auch gegen Torsion ausreichend abstützen. Die kraftschlüssige Verspannung der Lamellenpakete 27, 38 über die Klemmeinrichtung 4 und Verspannung 5 wird dabei von den auf Druck beanspruchbaren Federn 44 ermöglicht, welche den Lagerbock 39 ausreichend stark gegen die Lamellenpakete drücken. Die Druckfedern 44 sind dabei konzentrisch um die Lagerbolzen 40, 41 gelegt und lassen sich nur durch die Einwirkung des Hebelarmes des Auslösehebels 11 mit geringem Kraftaufwand drücken.For better support of the disk packs 27, 38 and here in particular the longitudinal disk pack 38 and bordering the same, this can be held laterally by stronger base plates 57, 58 which also adequately support this disk pack against torsion. The non-positive bracing of the disk packs 27, 38 via the clamping device 4 and bracing 5 is made possible by the compressible springs 44 which press the bearing block 39 sufficiently strongly against the disk packs. The compression springs 44 are placed concentrically around the bearing bolts 40, 41 and can only be pressed with little effort by the action of the lever arm of the release lever 11.

In Fällen, in denen beispielsweise eine Gasfeder als Stütze 14 für den Sitzträger 1 zwischen diesem und einem in der" Zeichnung nicht dargestellten Fußkreuz vorgesehen wird, und diese Gasfeder bekanntlich eine Auslösemechanik aufweist, kann, um diese Mechanik betätigen zu können, ein winkelförmiger Auslösehebel 23 in dem Basiskörper 2 drehbar gelagert sein, und zwar derart, daß dieser Hebel in einer Stellung kurz vor dem Auslösen der Gasfeder durch eine Feder 59 gespannt gehalten bleibt. Zum Auslösen der Gasfeder ist es somit erforderlich, diesen Hebel 23 gegen den Druck der ihn verspannenden Feder 59 zu bewegen, wodurch eine an diesem Hebel sich befindende Kröpfung 60 auf den Auslösestift der Gasfeder drückt und diesen solange nach innen preßt, bis die gewollte Höhenlage der Stütze 14 erreicht wurde. Der Hebel 23 selbst für das Auslösen der Gasfeder wird somit nicht vom Druck der Gasfeder in dieser sogenannten Ruhelage gehalten, sondern es ruht dieser in dieser Lage durch die Wirkung der ihn verspannenden Feder 59, welche sich zum einen gegen den Auslösehebel 23 und zum anderen gegen einen Lagerbolzen 61 am Basiskörper 2 abstützt.In cases where, for example, a gas spring is provided as a support 14 for the seat support 1 between the latter and a base not shown in the "drawing", and this gas spring is known to have a release mechanism, in order to be able to operate this mechanism, an angular release lever 23 can be used be rotatably mounted in the base body 2 in such a way that this lever remains tensioned in a position shortly before the gas spring is triggered by a spring 59. To trigger the gas spring it is therefore necessary to press this lever 23 against the pressure of the bracing elements Spring 59 to move, whereby a crank 60 located on this lever presses the trigger pin of the gas spring and presses it inward until the desired height of the support 14 has been reached. The lever 23 itself for triggering the gas spring is therefore not removed Pressure of the gas spring kept in this so-called rest position, but it rests in this position by the effect the tensioning spring 59, which is supported on the one hand against the release lever 23 and on the other hand against a bearing pin 61 on the base body 2.

Die Form der dreieckförmigen und länglichen Lamellen 27, 38 der einzelnen Lamellenpakete ist in den Fig. 5 und 6 angegeben, wobei dies nicht ausschließt, auch andere Formen von Lamellen zu verwenden.The shape of the triangular and elongated lamellae 27, 38 of the individual lamella packs is indicated in FIGS. 5 and 6, although this does not preclude the use of other lamellae forms.

In Fällen, in denen auf eine gleichzeitige Verstellung der Rückenlehne bei Verstellung der Sitzfläche 6 nicht Wert gelegt wird, kann das Längslamellenpaket 38 entsprechend abgekoppelt sein, so daß das Querlamellenpaket 27 und somit dessen Lamellen nebst Druckplatten 45, 46 erhalten bleiben, welche dann von der gleichen Klemmeinrichtung 4 und Verspannung 5 in Schließ- bzw. Ruhelage gehalten werden können. In der hier dargestellten Ausführung jedoch läßt sich das Grundteil 22 um dessen gelenkigen Anschluß 10' gegen den Basiskörper 2 kippen, wie dies auch in den Kippsehnen 62 für das Grundteil 22 bzw. den Tragbügel 7 und die Kappe 25 angedeutet ist.In cases in which a simultaneous adjustment of the backrest is not important when adjusting the seat 6, the longitudinal plate pack 38 can be uncoupled accordingly, so that the transverse plate pack 27 and thus its slats together with pressure plates 45, 46 are retained, which are then by the same clamping device 4 and bracing 5 can be kept in the closed or rest position. In the embodiment shown here, however, the base part 22 can be tilted about its articulated connection 10 ′ against the base body 2, as is also indicated in the tilting tendons 62 for the base part 22 or the support bracket 7 and the cap 25.

Claims (8)

1. Seat bracket for chairs, typically for swivel work chairs, which is connectable via a column to the base structure of the chair and for the purpose of this connection is provided with a crosshead engaging the prominent end of the column, typically in a force-locking manner, the seat bracket (1) being formed with a U-shaped base member (2) and the crosshead (13) being immovably inserted in said base member (2) and said seat bracket (1) being equipped with a supporting member (30) to support a seat surface (6) resting on said supporting member (30) as well as the seat surface being arranged for adjusting its inclination relative to the base member (2) and the base member being provided with a number of functional parts for its vertical adjustment on the one hand and the adjustment of the inclination of its seat surface on the other hand, these functional parts, with the exception of the parts for their manual control, being arranged inside the flanges (15, 16) of the U-shaped parts of the seat bracket (1) and the seat bracket having the U-shaped parts of both the base member (2) and the supporting member (30) articulately joined to each other as well as via intermeshing plates of longitudinal and transverse plate stacks (38, 27) of which one part is connected to the base and supporting members (2, 30) and another part to the base member and the support arm (7) of the back rest bracket and the base and supporting members as well as the support arm of the back rest bracket being arrestable in their inclined positions by means of a clamping member (4, 5) holding the plates together in a force-locking manner, characterized in that the U-shaped supporting member (30) is provided with at least one crossbar (31) extending perpendicular to the former, in that the plates of the longitudinal plate stack (38) extending in the direction of the longitudinal centreline (X) of the seat bracket (1) are supported on the one hand on the pivot pin (41) of the clamping member (clamping device 4, clamping system 5) and, on the other hand, on at least one bearing pin (56) of the clamping head (8), in that the plates of the transverse plate stack (27) extending perpendicular to the direction of the longitudinal centreline (X) of the seat bracket (1) are supported on the one hand on the same pivot pin (41) of the clamping member (4, 5) and, on the other hand on a bearing pin (29) of the base member (2), in that the clamping member (4, 5) is formed by at least one spring (44) mounted on a pivot pin (40, 41) and bearing against the flange (36, 37) of the supporting member (30) and a releasing device (47-54) actuating the spring, in that a crosshead (39) is arranged between the plate stacks and the flange (37) of the supporting member (30) for transmitting the clamping force of the spring (44) to the plates of the plate stacks (27, 38), and in that a release bar (11) is connected to the crosshead (39) to actuate said crosshead, the extension of the said bar being variable by means of a length-adjusting device (47-49) for adjusting the clamping force of the spring (44).
2. Seat bracket as in Claim 1, characterized in that the crosshead (39) is arranged between the plate stacks (27, 38) and the flange (37) of the supporting member (30) and in that said crosshead is formed with a groove-shaped recess (42) for the free end (43) of the releasing bar (11) engaging said recess.
3. Seat bracket as in Claim 2, characterized in that the crosshead (39) is located by two pivot pins (40, 41) arranged symmetrically to the recess (42) and is capable of being pressed by the springs (44) against compression members (compression plates 45, 46) of the plate stacks (27, 38).
4. Seat bracket as in Claim 2, characterized in that the crosshead (39) is connected in the normal position of the plate stacks (27, 38) via the compression plates (45, 46) in a force-locking manner to these plate stacks.
5. Seat bracket as in Claim 1, characterized in that the release system (47-54) is formed by two sleeves (47, 48) capable of being axially constrained relative to each other and a collar (50) which is capable of sliding onto and being connected to said sleeve in a form-locking manner as well as a spacer (51, 52) which is capable of being clamped between the sleeves and the one flange (37) of the supporting member (30).
6. Seat bracket as in Claim 5, characterized in that, for the purpose of axially constraining the sleeves (47, 48), these sleeves are formed with sliding faces (49) abutting each other and end stops and in that, by rotating at least one of the sleeves, these sliding faces produce the axial extension.
7. Seat bracket as in Claim 6, characterized in that, in addition to the end stops of the sliding faces, the sleeves (47, 48) are also constrained between end stops (51, 52, 53) on the releasing bar (11).
8. Seat bracket as in Claim 1, characterized in that the plates of the transverse plate stack (27) extending perpendicular to the direction of the longitudinal centreline (X) of the seat bracket (1) are of triangular shape and supported and/or guided in the region of their corners on the bearing pins (40, 41, 29).
EP84109535A 1983-08-12 1984-08-10 Seat support for chairs, particularly office swivel chairs Expired EP0139939B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84109535T ATE47652T1 (en) 1983-08-12 1984-08-10 SEAT CARRIER FOR CHAIRS, ESPECIALLY TASK CHAIRS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP83108004 1983-08-12
EP83108004 1983-08-12

Publications (2)

Publication Number Publication Date
EP0139939A1 EP0139939A1 (en) 1985-05-08
EP0139939B1 true EP0139939B1 (en) 1989-11-02

Family

ID=8190631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84109535A Expired EP0139939B1 (en) 1983-08-12 1984-08-10 Seat support for chairs, particularly office swivel chairs

Country Status (7)

Country Link
US (1) US4636004A (en)
EP (1) EP0139939B1 (en)
CY (1) CY1588A (en)
DE (2) DE3424756A1 (en)
GR (1) GR80075B (en)
HK (1) HK17092A (en)
ZA (1) ZA845415B (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3717008A1 (en) * 1987-05-21 1988-12-15 Konrad Neumueller Device for non-positive bracing of lamellae acting on friction pressure, in particular for their use in inclination adjustment mechanisms for seats and/or backs of work chairs and the like
US4938531A (en) * 1988-03-23 1990-07-03 Email Limited Adjustment mechanism for chairs
US5785385A (en) * 1988-07-27 1998-07-28 Lie; Tore Locking device for chair seats
US5066069A (en) * 1990-05-03 1991-11-19 Systems Furniture Company Chair back and seat adjustment mechanism
IE66891B1 (en) * 1991-02-15 1996-02-07 Ashfield Eng Co Wexford Ltd An adjustment mechanism for furniture
DE9109184U1 (en) * 1991-07-25 1991-10-10 Sifa Sitzfabrik Gmbh, 8458 Sulzbach-Rosenberg, De
US5328242A (en) * 1992-03-18 1994-07-12 Steelcase Inc. Chair with back lock
US5282670A (en) * 1992-04-20 1994-02-01 Steelcase Inc. Cable actuated variable stop mechanism
DE4216173A1 (en) * 1992-05-15 1993-11-18 Sifa Sitzfabrik Gmbh Actuating device for adjusting mechanisms of seating furniture
US5630648A (en) * 1992-08-27 1997-05-20 Harry C. Sweere Dynamic posture chair
IL103477A0 (en) * 1992-10-20 1993-03-15 Paltechnica Nitzanim Office and like chairs
US5356200A (en) * 1992-10-23 1994-10-18 Doerner Products Ltd. Unitary brake for a chair tilt mechanism
DE4335017A1 (en) * 1993-10-14 1995-04-20 Sifa Sitzfabrik Gmbh Actuating device for seat supports for chairs, in particular swivel chairs
US5464274A (en) * 1994-01-13 1995-11-07 Westinghouse Electric Corporation Chair seat tilt adjustment and locking mechanism
US5577807A (en) * 1994-06-09 1996-11-26 Steelcase Inc. Adjustable chair actuator
IES960138A2 (en) * 1995-02-15 1996-05-15 Ashfield Eng Co Wexford Ltd "An actuator for a chair mechanism lock"
US5676425A (en) * 1996-03-19 1997-10-14 R.A.M. Machines (1990) Ltd. Releasable lock forchair control mechanism
US5836555A (en) * 1996-06-07 1998-11-17 Safco Products Company Industrial chair
USD381823S (en) * 1996-06-07 1997-08-05 Safco Products Company Industrial chair
IT245520Y1 (en) * 1998-07-16 2002-03-22 Beniamino Miotto MECHANICAL DEVICE PARTICULARLY FOR THE SYNCHRONOUS HANDLING OF THE SEAT AND BACK OF A CHAIR.
US6598936B1 (en) 2001-04-11 2003-07-29 Michael N. Klein Multi-task mid-pivot chair control mechanism
US6394550B1 (en) * 2001-08-17 2002-05-28 Gen-Fong Liu Chair adjustment assembly
US6893096B2 (en) * 2002-09-05 2005-05-17 A-Dec, Inc. Headrest support and adjustment mechanism
US7017992B2 (en) 2003-02-18 2006-03-28 Warvel Products, Inc.-N.C. Chair control device for a tiltable chair
ITVE20030014A1 (en) * 2003-04-10 2004-10-11 Imarc Spa DEVICE FOR ADJUSTING THE PRELOAD DEGREE OF THE SPRINGS IN MECHANISMS OF OFFICE CHAIRS.
DE102005020237B3 (en) * 2005-04-28 2006-08-17 Bock 1 Gmbh & Co. Kg Synchronous mechanism e.g. for correlated seat backrest movement of office chair, is connected to chair column base carrier, seat support and backrest carrier with tiltable backrest carrier arranged around transverse axis
CA2706935C (en) * 2010-06-09 2017-10-17 Dutailier Inc. Chair adjustment mechanism

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1265104A (en) * 1917-05-07 1918-05-07 Leroy A Ogden Device for adjustably connecting alined rods.
GB401718A (en) * 1932-05-18 1933-11-20 Leabank Mfg Company Ltd Improvements relating to chairs and like seats
US3735843A (en) * 1971-09-10 1973-05-29 Littell F J Machine Co Chicago Disc brake structure
DE7239551U (en) * 1972-10-27 1973-09-13 Neumueller K U S Metallwaren Ohg Seating furniture, in particular office chairs
DE2523308C2 (en) * 1975-05-27 1982-08-12 Konrad 8501 Burgthann Neumüller Seating furniture, in particular office swivel chairs
US3974712A (en) * 1975-07-16 1976-08-17 Pennsylvania Wire Rope Corporation Auxiliary brake lever
US4062587A (en) * 1976-01-13 1977-12-13 Herman Miller, Inc. Back position control device for chairs
DE2630820A1 (en) * 1976-07-08 1978-01-12 Westfael Eisen & Stahl Bearing element for office chair - comprising divided sections made as a housing enclosing link elements, springs and fixing devices
NO143253C (en) * 1977-08-25 1981-01-14 Staal & Stil As LABORATORY DEVICE.
DE2902622A1 (en) * 1979-01-24 1980-07-31 Steifensand Friedrich Martin Office swivel chair with single-action adjustment - has setting lever with control cam for freedom of movement and locking
DE2927377C2 (en) * 1979-07-06 1983-12-08 Steifensand Sitzmöbel- und Tischfabrik Inh.: F. Martin Steifensand, 8501 Wendelstein Seating furniture, in particular office swivel chairs
US4270906A (en) * 1979-11-05 1981-06-02 Dyneer Corporation Belt tensioner construction
US4438978A (en) * 1981-11-18 1984-03-27 Tor Arild Tilt back mechanism for a chair

Also Published As

Publication number Publication date
DE3480321D1 (en) 1989-12-07
US4636004A (en) 1987-01-13
CY1588A (en) 1992-04-03
HK17092A (en) 1992-03-13
DE3424756A1 (en) 1985-02-28
EP0139939A1 (en) 1985-05-08
ZA845415B (en) 1985-03-27
GR80075B (en) 1984-12-14

Similar Documents

Publication Publication Date Title
EP0139939B1 (en) Seat support for chairs, particularly office swivel chairs
EP0670123A1 (en) Height adjustable work table
EP0198056B1 (en) Seat support for chairs, especially for rotating work-chairs
DE2927377C2 (en) Seating furniture, in particular office swivel chairs
EP1258211B1 (en) Synchronised mechanism for a coupled seat-and backrest-movement for office chairs
EP0065036B1 (en) Table with adjustable top
DE1290297C2 (en) SUPPORT FOR A DENTAL FLOATING TABLE
DE3509049A1 (en) GAS SPRING ARRANGEMENT, ESPECIALLY FOR THE BACKREST SUPPORT PART ON OFFICE CHAIRS
EP0274569B1 (en) Writing-table with an additional shelf
EP0056454A2 (en) Seating furniture, particularly office swivel chair
DE3303265C2 (en) Chair, especially office chair
DE3315237A1 (en) Seating furniture, in particular an office chair
DE2629727B2 (en) Can be raised and lowered
DE3009073C2 (en) Adjustable reclining furniture
DE10229617A1 (en) Tilting device for furniture
DE3402147A1 (en) Seat support for chairs, in particular work chairs
DE8401813U1 (en) SEAT CARRIER FOR CHAIRS, IN PARTICULAR WORK CHAIRS
DE3912460C2 (en)
DE4001256C2 (en)
DE2026204C3 (en) Operating device for a lockable energy storage mechanism for height-adjustable seating furniture or tables
EP0592703B1 (en) Parallelogram supporting arm with counterbalancing spring means
DE2945808C2 (en)
DE1163704B (en) Floor door closers, especially for the leaves of swing doors
DE2937662A1 (en) HOLDING DEVICE FOR SLIDING DOORS, ESPECIALLY FOR FURNITURE
DE1133289B (en) Top roller support and loading arm for spinning machine drafting systems

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19851108

17Q First examination report despatched

Effective date: 19870202

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 47652

Country of ref document: AT

Date of ref document: 19891115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3480321

Country of ref document: DE

Date of ref document: 19891207

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: SIFA SITZFABRIK GMBH

NLS Nl: assignments of ep-patents

Owner name: SIFA SITZFABRIK GMBH TE SULZBACH-ROSENBERG, BONDSR

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

ITPR It: changes in ownership of a european patent

Owner name: CESSIONE;SIFA SITZFABRIK GMBH

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19940628

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940725

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19940809

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19940831

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19941005

Year of fee payment: 11

EAL Se: european patent in force in sweden

Ref document number: 84109535.9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950810

Ref country code: AT

Effective date: 19950810

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950811

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950821

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19950830

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19950831

BERE Be: lapsed

Owner name: SIFA SITZFABRIK G.M.B.H.

Effective date: 19950831

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19950810

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960430

EUG Se: european patent has lapsed

Ref document number: 84109535.9

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19961001

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19970301

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19970301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970831

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL