EP2721963B1 - Agencement de liaison d'un meuble siège, meuble siège et procédé de montage - Google Patents

Agencement de liaison d'un meuble siège, meuble siège et procédé de montage Download PDF

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Publication number
EP2721963B1
EP2721963B1 EP20130187636 EP13187636A EP2721963B1 EP 2721963 B1 EP2721963 B1 EP 2721963B1 EP 20130187636 EP20130187636 EP 20130187636 EP 13187636 A EP13187636 A EP 13187636A EP 2721963 B1 EP2721963 B1 EP 2721963B1
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EP
European Patent Office
Prior art keywords
coupling
projection
connection arrangement
shaft
extension
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Active
Application number
EP20130187636
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German (de)
English (en)
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EP2721963A1 (fr
Inventor
Siegfried Donner
Thomas Stenzel
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Sedus Stoll AG
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Sedus Stoll AG
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Publication date
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Publication of EP2721963A1 publication Critical patent/EP2721963A1/fr
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/42—Support for the head or the back for the back of detachable or loose type

Definitions

  • the present invention relates to a connection arrangement of a seat for attaching a backrest support to a seat support.
  • the present invention further relates to a chair and a mounting method for attaching a backrest support to a seat support.
  • a backrest In office swivel chairs usually a backrest is provided on which a person sitting on the office swivel chair, in particular for relaxation, can support.
  • a backrest is usually attached to the seat support of the office swivel chair.
  • the backrest is often clamped to the seat support with a profile provided either on the seat support which can be displaced in a depth-displaceable manner or displaced vertically.
  • the profile is firmly attached to the backrest.
  • a clamping screw is arranged in the guide provided for the profile, wherein the profile is clamped by tightening the clamping screw.
  • the installation of this office chair can z. B.
  • a typical clamping screw for manual operation is typically formed relatively large dimensions and, for practical reasons, easily accessible, ie easily visible. This is preferred because of better handling, but rather not advantageous in terms of design.
  • a clamping screw can also solve unintentionally over time, for example due to creeping of a material of the screw or the guide, or because the clamping screw has not been tightened sufficiently firmly. The reverse case is also conceivable that the clamping screw can not be solved without destruction, for example due to deformation, corrosion, swelling or the like.
  • connection arrangement with the features of claim 1 and / or by a chair with the features of claim 13 and / or by a mounting method with the features of claim 15.
  • the idea underlying the present invention is to allow an elegant, tool-free installation of a backrest on the seat support of a seat, in particular a backrest to the seat support of an office swivel chair.
  • a backrest support for connecting a backrest support with a seat support relative to the seat support the rotational degrees of freedom, two translational degrees of freedom and a direction of the third translational degree of freedom limited by introducing a coupling extension in a coupling shaft and a zugvorspannbares coupling element for limiting the second direction of the third translational degree of freedom.
  • the coupling element can be suspended with a suspension extension on a coupling bolt of the coupling extension and can be inserted with an insertion extension into a coupling groove of the coupling shaft, the tension prestressing causing a self-locking retention of the insertion extension in the coupling groove.
  • a coupling bolt is to be understood as any type of suspension device, which is suitable for a suspension extension can be suspended therein or thereto.
  • a coupling groove is to be understood as any type of insertion device which is suitable for inserting an insertion extension into or onto it and being self-locking in or on it with a tensile stress.
  • the coupling groove is provided within the coupling shaft, which also includes that the coupling groove can be provided within a longitudinal or transverse projection of the coupling shaft.
  • the coupling shaft in front of the position of the coupling groove expires and, for example, merges into a solid part, wherein the coupling groove is provided in the solid part, or if the coupling groove is provided on an outer side of the coupling shaft.
  • the coupling groove is preferably provided on the inside of the coupling shaft, which is advantageously arranged hidden from the outside.
  • a backrest support of a backrest is preferably provided.
  • the support of an armrest may be provided as a backrest support.
  • connection arrangement A mechanical advantage of the connection arrangement is that a play possibly adjusting with time in the connection arrangement is compensated by the tension prestressing.
  • connection arrangement is that the complete connection can be concealed from the outside within the coupling shaft and thus invisible from the outside.
  • a mounting technical advantage results from the easy and quick mountability for producing a mounted state. It is a tool z. B. provided by an individual with a few assembly steps easily mountable connection assembly.
  • a logistical advantage in the delivery of the seat results from a volume-optimized transport capability in unassembled state of the connection assembly, which is favored by the ease of assembly.
  • the seating furniture with a better volume utilization is packable and thus cheaper to transport than in the assembled state.
  • the simple assembly makes it possible to expect even an untrained person, for example, a buyer for home assembly.
  • the ease of assembly allows shipment to a distributor and final assembly by sales personnel at the distributor.
  • the assembly is varied in terms of the order of the assembly steps, which allows for different assembly concepts, such as home, sales offices or factory final assembly, different solutions. These can be configured according to the respective requirements for ease of installation and the ability of the person to be mounted.
  • step a), then step b), then step c) and, finally, steps d) and e) may be performed simultaneously.
  • the application of the tensile stress is carried out during the insertion, for example by an elastic deformation of the coupling element to or during insertion.
  • the coupling element can in this case be formed in one piece, which advantageously reduces the number of parts and the assembly steps.
  • step a), then step d), then simultaneously steps b) and c) and finally step e) are carried out, wherein the application of the tensile stress, for example with a final manipulation of the coupling element, such as the operation of a Kochtotrioshebels , can be applied.
  • a final manipulation of the coupling element such as the operation of a Studentstotrioshebels
  • step e) a pre-locked state is provided.
  • This particularly comfortable realization of the final assembly is thus very easy to carry out by technically untrained persons, such as sellers, agents or buyers, and thereby very safe to use.
  • the coupling pin is arranged on a introduced into the coupling shaft portion of the coupling extension. Furthermore, the coupling extension on a first opening through which the Einhticianfortsatz is inserted into the coupling shaft.
  • the coupling pin and the attachment extension can be arranged within the coupling shaft, so that they are covered by the coupling shaft and thus invisible from the outside, which is advantageous from a design point of view.
  • the coupling extension is formed in two parts, wherein the two coupling extension parts are connected via the coupling pin and the first opening between the two coupling extension parts is arranged.
  • the first opening is realized simply by the bipartite and a distance between the coupling extension parts.
  • the coupling extension parts can be formed as solid parts, for example as castings, without the need for subsequent forming or machining for the introduction of the opening.
  • a shaft-like formation of the coupling extension is conceivable, in which case the first opening in the shaft-like formation is introduced and the coupling pin is secured in the shaft-like training.
  • the coupling shaft has a second opening, through which the coupling extension can be inserted into the coupling groove.
  • the first and second openings in particular form a common opening of the connection arrangement.
  • the coupling element is preferably designed such that it covers the common opening in the mounted state.
  • the first and second openings are covered by the coupling element.
  • all the connecting elements can be arranged invisibly from the outside within the coupling shaft, with the opening of the coupling shaft also being concealed.
  • the coupling element and the coupling groove together form a Kochtotriosklemme, which is designed such that when suspended Einh brieflytsatz by inserting the insertion extension into the coupling groove a dead center is exceeded.
  • the tensile stress in a simple manner, by elastic deformation of the coupling element can be applied to the same.
  • the input opening of the coupling groove is laterally offset from the direct connecting line between coupling pin and the end position of the insertion in the coupling groove provided so that the coupling element for inserting the insertion into the coupling groove has to bridge a further distance than in the assembled state.
  • the dead center is in this case at a position of the coupling element, in which the insertion extension overcomes the entrance into the coupling groove and is inserted into the coupling groove.
  • the insertion extension is drawn by the voltage applied to the coupling element tensile stress in the coupling groove, so that the insertion extension then holds self-locking in the coupling groove.
  • a corresponding force would then have to be exerted on the coupling element in order to pull the insertion extension counter to the tensile stress so far out of the coupling groove that the insertion extension overcomes the input or output of the coupling groove again and is pulled out of the coupling groove.
  • the coupling element is rigid and the coupling groove extends in such a way that the dead center is exceeded upon insertion of the insertion extension into the coupling groove by flexible deformation of the coupling element.
  • Rigid is to be understood here in such a way that no joints are provided on the coupling element.
  • the course of the coupling groove for forming an over-center terminal can be configured in many ways.
  • the coupling groove can run normal, ie perpendicular to the direct connecting line between the attachment extension and the end position of the insertion extension, and have an input offset to this line.
  • the dead center effect can be further enhanced by the coupling groove is disposed at least in the region of its entrance at an acute angle to said connecting line.
  • intermediate latching stages within the coupling groove are also conceivable, which may be designed, for example, as flat or step-like shoulders.
  • the coupling element is flexibly deformable to overcome the dead center, in particular designed resiliently, in particular, a spring bridge between the Einh brieflytsatz and the insertion extension can be provided.
  • the appendage process and the insertion process itself can be flexible.
  • the coupling groove is formed, for example, as finger-milling cutters symmetrically arranged on two opposite inner surfaces of the coupling shaft into which a cross-bolt designed as a transverse pin Introductory process is insertable. Overall, this provides a simple connection arrangement that is tool-free, lightweight, safe and quick to assemble.
  • the coupling element on a Kochtot Vietnamesehebel which is arranged and designed such that the insertion is at least partially inserted into the coupling groove without effort and is pressed to apply the tension of the Studentstot Vietnamesehebel over its dead center.
  • This embodiment represents an alternative to the rigid-elastic design of the coupling element. However, this does not exclude that even in the embodiment with Kochtot Vietnamesehebel flexible training may be provided.
  • the coupling element is first hung with the EinhCodefortsatz on the coupling pin and inserted with the insertion extension in the coupling groove, which can be carried out in reverse order depending on the arrangement of the Einhnaturefortsatzes. Subsequently, the Kochtotrioshebel is pressed over its dead center to apply the tension.
  • the tension is applied in a particularly user-friendly manner.
  • the Sprinthebel is provided on the insertion extension, wherein optionally or additionally, the axis of rotation of the Kochtot Vietnamesehebels is provided inserted into the coupling groove.
  • the suspension extension is optionally or additionally provided hinged to the over-center lever.
  • the pivot point of the Kochtot Vietnamesehebels lie in the region of the coupling groove, so that generated by exceeding the dead center advantageously directly on the Kochtot Vietnamesehebel the tension and is supported against the coupling shaft. This is advantageous because in this way tensile forces do not have to be transmitted with additional elements to to act the coupling element.
  • a functional integration for the component of the axis of rotation is realized in this way, which serves not only as an axis for the Kochtotpünkthebel, but at the same time as a frictional producing part of the insertion extension.
  • an on the coupling shaft attachable and hinged to the Mattertot Vietnamesehebel actuating lever is provided on the coupling element, which is arranged and designed such that upon actuation of the Mattertot Vietnamesehebels the dead center is exceeded.
  • the Kochtot Vietnamesehebel can be hung on the coupling shaft, for example, also via an opening provided on the coupling shaft groove, in which in particular a provided on the operating lever cross bolt is hung.
  • an advantageously easy to operate from the outside actuating element for actuating the Kochtot Vietnamesehebels is provided, which preferably also serves to cover the common opening of the connection assembly simultaneously.
  • the actuating lever on the coupling shaft can be suspended in a region which is arranged in the mounted state in the region of the coupling bolt.
  • the actuating lever has a bearing surface for the suspension extension, which holds the suspension extension within the coupling shaft at the level of the coupling bolt.
  • a pivot point for the actuating lever is provided by the hanging of the actuating lever, by which the actuating lever is rotatable towards the coupling shaft, wherein preferably during rotation of the operating lever to the coupling shaft towards the Kochtot Vietnamese is pressed over the dead center.
  • the actuating lever is advantageous in the mounted state of the coupling shaft and can cover the common opening of the connection assembly in this position.
  • the coupling shaft or the entire connection arrangement is thus closed, so that advantageously no connecting elements are visible from the outside.
  • the suspension extension is positioned by the support surface so that it can be easily suspended from the coupling pin.
  • the suspension extension on the side facing away from the coupling pin in the assembled state has an obliquely or convexly shaped surface which is arranged such that in an intermediate mounting state, in which the actuating lever is mounted on the coupling shaft and the insertion extension is inserted into the coupling groove, is raised by inserting the coupling extension in the coupling shaft of the attachment extension on contact of the surface with the coupling pin.
  • the Einhticianfortsatz be raised by the insertion movement of the coupling extension into the coupling shaft.
  • the previously coupled to the coupling shaft coupling element can be opened with this training within the coupling shaft by raising the Einhticianfortsatz, whereby the Einhssenfortsatz within the coupling shaft, without additional actuation of the coupling element from the outside, can be suspended on the coupling pin.
  • the coupling extension is inserted so far into the coupling shaft, that the coupling pin infiltrates the Einhnaturefortsatz during insertion of the coupling extension in the coupling shaft such that the suspension extension occupies by dropping or snapping in the direction of the support surface pre-latched state with the coupling pin.
  • the backrest is already with the Seat carrier pre-locked before the Kochtot Vietnamese is actuated. This contributes advantageously to mounting safety when mounting. If the connection arrangement is in the pre-locked state, only the operating lever must be actuated in order to apply the tensile stress to the coupling element and thus to positively connect the coupling extension with the coupling shaft. The backrest does not need to be held anymore.
  • the assembly of the backrest support on the seat furniture carrier can be advantageously carried out easily by an individual.
  • the seating is designed as a high-sleeper office swivel chair with a backrest.
  • the backrest support is designed as a backrest support and the seat support as a seat support of the office swivel chair.
  • the coupling extension is provided on the seat support of the office swivel chair and in particular formed integrally with the seat support of the office swivel chair. Alternatively, the coupling extension may be formed as a separate, fixed to the seat support part.
  • a coupling shaft is provided on the backrest support and in particular formed integrally with the backrest support.
  • armrests can be provided, which are also connected by means of a connection arrangement according to the invention with the seat support.
  • correspondingly arranged coupling extensions are provided on the seat carrier.
  • at least one armrest carrier designed as a backrest support is provided on which a coupling shaft is provided.
  • backrest support and / or the armrest support connecting arrangements which each connect the backrest support and / or the armrest support to the seat support of the office swivel chair.
  • separate armrest support and connection arrangements are provided.
  • the backrest carrier of the coupling shaft can be formed as an extension of the arm or backrest support. This is particularly easy to implement when the back or armrest support is made of plastic.
  • the backrest or armrest carrier can then be a molded part, for example.
  • a one-piece design is conceivable from an aluminum material.
  • the seat support is preferably formed from readily castable materials, such as plastic or aluminum, in particular in a one-piece design with the insertion extension.
  • the insertion extension can be attached to the seat support as an initially separate part, for example with fastening means or by form or material connection.
  • fastening means or by form or material connection.
  • a variety of other materials such as e.g. Steel, preferably used.
  • the coupling shaft on the backrest carrier with fastening means, or by form or material connection can be fastened.
  • Fig. 1 shows a schematic diagram of a connection arrangement 1 of a chair according to the invention. This sketch serves only to illustrate the principle of the connection arrangement and is therefore shown for better clarity without hatching, visible edges and the like.
  • the Verbindugnsan extract 1 has a coupling shaft 2, within which a coupling groove 5 is provided. Furthermore, the connection arrangement 1 has a coupling extension 3, to which a coupling bolt 4 is attached. The connection arrangement is shown in an assembled state, in which the coupling extension 3 is inserted into the coupling shaft 2.
  • the connection arrangement further has a coupling element 6, on which an attachment extension 7 and an insertion extension 8 are provided.
  • the Einhticianfortsatz 7 is formed on the coupling pin 4 hooked and the insertion extension 8 is formed in the coupling groove 5 inserted.
  • the coupling element On the coupling element is located between the insertion extension 8 and the attachment extension 7 to a tensile stress, which holds the coupling extension in the coupling shaft 2. Further, the tension holds the insertion extension 8 in the coupling groove 5. In the illustrated embodiment, this is ensured by the fact that the connecting line, not shown, between the attachment extension and the insertion extension is shorter in the mounted state than in a state in which the insertion extension enters the entrance the coupling groove is inserted with hinged attachment process.
  • the coupling extension 3 is inserted in the coupling shaft 2 only up to a stop, so that in the mounted state, the tension is supported at the stop between coupling shaft 2 and coupling extension.
  • FIG. 2 shows an office swivel chair 10 with a connection arrangement according to the invention.
  • the office swivel chair 10 has a backrest support 11 and a seat support 12. On the surface of the seat support 12, a seat surface 13 is provided. At the bottom of the seat support 12 a swivel chair column 14 is provided, which connects the seat support 12 with a chair cross 15. Chair chair 16 are attached to the chair cross 15.
  • the backrest support 11 has a coupling shaft 2 and the seat support 3 has a coupling extension 3. Further, a coupling element 6 is provided, by means of which the coupling shaft and the coupling extension are connectable.
  • the coupling shaft 2, the coupling element 6 and the coupling extension 3 are part of a connection assembly according to the invention 1.
  • connection assembly 1 is used for attaching a provided on the backrest support 11 backrest 17 to the seat support 12.
  • connection arrangements be provided for example for attaching armrests, not shown.
  • connection arrangements can also be designed according to a connection arrangement 1 according to the invention.
  • the seat 13 is conventional, that is mounted on the seat support 12 via fastening means or locking means.
  • the seat support 12 and the swivel chair column 14 are conventionally connected to each other. The same applies to the connection between the swivel chair column 14 and the chair cross 15 and between the chair rollers 16 and the chair cross 15.
  • FIGS. 3A to 3C show an embodiment of a connection assembly 1 according to the invention in a longitudinal sectional view and stages of a mounting method for attaching a backrest support 11 to a seat support 12.
  • the connection assembly 1 has in this embodiment a coupling shaft 2 and a coupling extension 3 and a coupling element 6.
  • the coupling extension 3 is inserted into the coupling shaft 2.
  • the coupling element 6 is mounted with its trained as a round hook Einhticianfortsatz 7 on the coupling pin 4, which is attached to the coupling extension 3, mounted.
  • the Einhfitfortsatz 7 was previously introduced through the first opening 21 of the coupling extension 3 in the coupling shaft 2 and mounted on the coupling pin 4.
  • the coupling element 6 also has an insertion extension 8, which is formed in this embodiment as a provided with a cross bolt, mounted on a nose sleeve.
  • This insertion extension 8 is inserted through an opening 22 of the coupling shaft in the coupling groove 5.
  • the first opening 21 and the second opening 22 form a common opening 23, via which the coupling shaft 2 is accessible from the inside.
  • the coupling element 6 is formed in this embodiment as a one-piece, elastically deformable coupling element 6.
  • the coupling element 6 and the coupling groove 5 together form a Kochtotriosklemme, wherein the dead center is reached when the insertion extension 8 is located at the opening 22 at the entrance of the coupling groove 5. To get to this point, the coupling element 6 must be elastically deformed, whereby it is biased. The preload is maximum at the dead center. Once the coupling element 6 has exceeded the dead center with the insertion extension 8, it is drawn by the biasing force in the coupling groove 5. The coupling groove 5 is so aligned that a force vector of the tensile biasing force has a component which extends in the direction of the coupling groove. When the insertion extension is completely inserted into the coupling groove, a tension applied to the coupling element remains.
  • FIG. 3A shows the coupling element 6 already in an elastically deformed state shortly before reaching the dead center with the insertion extension 8 at the entrance of the coupling groove.
  • FIG. 3B shows a position in which the dead center has just been exceeded and the insertion extension 8 is already in the coupling groove 5 and partially inserted therein.
  • FIG. 3C the assembled state is shown, in which the insertion extension 8 is completely inserted into the coupling groove 5.
  • the coupling element 6 is still slightly elastically deformed, and there is a tensile stress between the insertion extension 8 and the Einh brieflytsatz 7 on the coupling element 6 at.
  • the coupling extension 3 is held in the coupling shaft 2.
  • the opening 23 is at least partially covered or closed by the coupling element 6. Consequently
  • the coupling shaft 2 is formed integrally with a backrest support, which is designed as an aluminum casting.
  • the coupling extension 3 is in this embodiment as a seat support formed with fasteners attachable aluminum casting.
  • FIG. 4 is the connection arrangement of the FIGS. 3A to 3C shown in a perspective view without the coupling shaft 2.
  • the coupling extension 3 is formed with two coupling extension parts 31 and 32. These coupling extension parts 31 and 32 are connected to each other via the coupling pin 4.
  • the coupling extension parts 31 and 32 are mutually mirror-symmetrical, wherein the mirror plane extends centrally through a central cross-sectional plane of the coupling bolt. Symmetrical to this level, the coupling element 6 is shown in this illustration.
  • the intermediate space between the two coupling extension parts 31 and 32 forms the first opening 21 of the coupling extension 3.
  • the coupling extension 3 has stop surfaces 33 on the coupling extension parts 31 and 32, against which stop surfaces of the coupling shaft, for example the end surfaces of the shaft, can abut to support the tension applied by the coupling element.
  • the coupling extension 3 has various attachment openings 34 for attaching the coupling extension 3 on the seat support 12 of a chair 10.
  • this connection arrangement of the coupling extension 3 is preassembled on the seat support 12.
  • the seating can be easily and quickly assembled after being transported locally by mounting the connection assembly at its destination or at a distribution point. Furthermore, this connection arrangement can also be used for optimized factory final assembly.
  • FIG. 5 shows a representation of the embodiment according to the FIGS. 3A to 3C in a perspective longitudinal section in the assembled state. Therein are those described above Elements for better illustration again shown in perspective.
  • FIGS. 6A to 6D show an embodiment of the inventive connection assembly 1 of a chair 10 and representations of stages of their assembly process, in particular for connecting a backrest support 11 with a seat support 12.
  • the illustrated embodiment differs above all in terms of the design of the coupling element 6 ', which is why in the following mainly on the Differences to the preceding embodiment will be received.
  • the coupling extension 3 and the coupling shaft 2 are formed substantially equal to the preceding embodiment.
  • the coupling element 6 ' in contrast to an over-center lever 41. This has an axis of rotation 42 which is arranged and formed insertable into the coupling groove 5.
  • the Sprintingdoghebel 41 is formed on the insertion extension 8 'and the axis of rotation 42 of the Kochtot Vietnamesehebels 41 forms the insertable into the coupling groove 5 portion of the insertion extension 8' from.
  • the suspension extension 7 ' is articulated on the over-center lever 41, which in this embodiment is designed as a latch or snap hook.
  • an actuating lever 43 is articulated to the Kochtot Vietnamesehebel 41, via which the Kochtot Vietnamesehebel 41 is actuated.
  • This actuating lever 43 is suspended in a suspension groove 47 and has accordingly trained hooking means 48, in particular a transverse bolt on.
  • the actuating lever 43 is further provided with a bearing surface 45.
  • this support surface 45 is provided for supporting the Einhticianfortsatzes 7 '.
  • the support surface 45 holds the Einhticianfortsatz 7 'in the unassembled state at the height of the coupling pin 4.
  • the coupling element 43 is by hooking the operating lever in the Einhticiannut 47 and by introducing the axis of rotation 42 in the coupling groove 5 in a prefabricated state on the coupling shaft 2 attachable.
  • both this advanced state and the position of the Einhticianfortsatz at the height of the coupling pin is particularly advantageous, because in this way, the coupling extension 3 can be introduced into the coupling shaft 2 and the Einhticianfortsatz 7 'at the same time by the insertion movement in or on the coupling pin 4 are mounted.
  • the attachment extension 7 ' has an inclined surface 46 on the side facing away from the coupling pin 4 in the shown assembled state. By means of this inclined surface 46, the attachment extension 47 is raised when the coupling extension 3 is inserted, when the surface 46 comes into contact with the coupling pin 4.
  • the coupling extension 3 is then so far inserted into the coupling shaft 2, that the Einhticianfortsatz 7 'is completely infiltrated by the coupling pin 4 during insertion of the coupling extension 3 and in the fully imported state falls back onto the support surface 45 and snaps down.
  • the snap-down can be assisted by a spring bias of the attachment extension 7 '.
  • the suspension extension 7 ' falls down only by the force of gravity, which is sufficient due to the fact that the assembly can be carried out in the standing state of the seat.
  • the connection assembly 1 is in a pre-locked state.
  • the coupling shaft 2 can no longer readily detach from the coupling extension 3, which is why the backrest support 11 of the chair no longer needs to be held. This allows the fitter to actuate the actuating lever 43, without having to hold the coupling shaft 2 to the coupling extension 3 from the outside.
  • FIG. 6A shows the operating lever 43 in the in FIG. 6A shown position in the direction of the coupling shaft 2 pressed into the opening 23.
  • the attachment extension 7 is completely contracted with the coupling pin 4, as in FIG FIG. 6B shown.
  • the fürtot Vietnamesehebel 41 is already twisted to some extent, but not yet to the dead center.
  • the operating lever 43 moves slightly in the direction of the coupling shaft 2 and its opening 23. In this position, no force must be applied to the operating lever. However, a force applied to the actuating lever 43 force is necessary to reach the dead center.
  • FIG. 6C shows the Kochtotrioshebel 41 at the dead center.
  • FIG. 7 shows the coupling element 6 in a perspective detail view.
  • the axis of rotation 42 and the suspension means 48 is shown as laterally projecting bolts.
  • the inclined surface 46 is formed as a wedge-shaped projection on the Einhnaturefortsatz 7 '.
  • the bearing surface 45 is formed as a fan-shaped extension 45 on the actuating lever 43.
  • the Studentstot Vietnamesehebel 41 has a total of three axes of rotation, wherein the axis of rotation 42 represents the axis defined by the coupling groove 5 and the other two axes of rotation are provided for articulating the Einhticianfortsatzes 7 'and the actuating lever 43.
  • FIG. 8 shows a state of the connection arrangement according to the invention according to the sectional view FIG. 6D in a perspective sectional view. All elements described above are shown in perspective for better illustration.
  • FIG. 9 shows a representation of the connection arrangement according to the FIGS. 6A to 6D without the coupling shaft.
  • the FIG. 9 illustrated embodiment corresponds apart from the coupling element 6 'substantially in FIG. 4 illustrated embodiment of the coupling extension 3.
  • Advantageously identical coupling extensions 3 and also identical coupling shafts 2 can be used.
  • the coupling extensions 3 in the coupling shaft 2 can be inserted, and thus except for one direction in all Freedom limited. The free direction is then limited by the coupling element 6 or 6 '.
  • very many identical parts can be used for the two different embodiments, which also have different assembly concepts. In essence, only another coupling element 6 or 6 'is used.
  • FIGS. 2A to 5 and a preferred embodiment for home assembly according to the FIGS. 6A to 9 mainly realized with identical parts, with only different coupling elements 6 and 6 'are provided.
  • the coupling pin may be formed differently in an alternative embodiment of the coupling extension.
  • the coupling extension is designed, for example, as a shaft, the coupling bolt can also be replaced by a Einhticianaus supraung in this shaft. The formation of the attachment process and the force application points would have to be adjusted accordingly.
  • the coupling shaft is similar with an alternative embodiment of the coupling shaft. If, for example, the duct shape runs out at a position which is closer to the coupling bolt than the coupling groove, that is to say if the coupling groove does not protrude into a cavity of the shaft, but adjoins it, it is conceivable to adapt the coupling element such that it only engages from outside is introduced into the groove. In this case, the coupling element does not extend within the coupling shaft, but on the outer surface or in a separately provided recess.
  • the coupling element could have a portion provided for deformation, which has a folded-out long and a deformed, shortened state. To apply the tension then the shortened state is taken.
  • a shrinking material on the coupling element would also be conceivable, which is shrunk for applying the tensile stress, for example by heating and thus generates a tensile stress.

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Claims (15)

  1. Agencement de liaison (1) d'un meuble siège (10) pour le montage d'un support d'appui (11) sur un support de meuble siège (12),
    comportant une gaine de couplage (2) et un appendice de couplage (3), l'appendice de couplage (3) étant introduit à l'état monté au moins par section dans la gaine de couplage (2),
    comportant un boulon de couplage (4) fixé à l'appendice de couplage (3) et une rainure de couplage (5) prévue à l'intérieur de la gaine de couplage (2),
    comportant un élément de couplage (6), qui présente un appendice d'accrochage (7) pouvant être accroché au boulon de couplage (4) et un appendice d'introduction (8) pouvant être introduit dans la rainure de couplage (5),
    l'élément de couplage (6), la rainure de couplage (5) et le boulon de couplage (4) étant disposés et réalisés de telle sorte que, à l'état monté, une contrainte de traction est appliquée entre l'appendice d'accrochage (7) et l'appendice d'introduction (8) sur l'élément de couplage (6), qui maintient l'appendice de couplage (3) dans la gaine de couplage (2) et maintient l'appendice d'introduction (8) de manière auto-bloquante dans la rainure de couplage (5).
  2. Agencement de liaison selon la revendication 1,
    caractérisé par le fait que le boulon de couplage (4) est disposé sur une section de l'appendice de couplage (3) introduite dans la gaine de couplage (2) et l'appendice de couplage (3) présente une première ouverture (21), à travers laquelle l'appendice d'accrochage (7) peut être introduit dans la gaine de couplage (2).
  3. Agencement de liaison selon l'une des revendications précédentes, caractérisé par le fait que l'appendice de couplage (3) est réalisé en deux parties, les deux parties d'appendice de couplage (31, 32) étant reliées par le boulon de couplage (4) et la première ouverture (21) étant disposée entre les deux parties de d'appendice de couplage (31, 32).
  4. Agencement de liaison selon l'une des revendications précédentes, caractérisé par le fait que la gaine de couplage (2) présente une seconde ouverture (22), à travers laquelle l'appendice d'introduction (8) peut être introduit dans la rainure de couplage (5), la première et la seconde ouvertures (21, 22) réalisant en particulier une ouverture commune (23) de l'agencement de liaison (1).
  5. Agencement de liaison selon l'une des revendications précédentes, caractérisé par le fait que l'élément de couplage (6) et la rainure de couplage (5) réalisent ensemble une pince de dépassement de point mort, réalisée de telle sorte que, à l'état accroché de l'appendice d'accrochage (7), un point mort est dépassé par l'introduction de l'appendice d'introduction (8) dans la rainure de couplage (5).
  6. Agencement de liaison selon la revendication 5, caractérisé par le fait que l'élément de couplage (6) est réalisé de manière rigide et la rainure de couplage (5) s'étend de telle manière que le point mort est dépassé lors de l'introduction de l'appendice d'introduction (8) dans la rainure de couplage (5) par une déformation flexible de l'élément de couplage (6).
  7. Agencement de liaison selon l'une des revendications 1 à 4, caractérisé par le fait que l'élément de couplage (6) présente un levier de dépassement de point mort (41), qui est disposé et réalisé de telle sorte que l'appendice d'introduction (8) est introduit sans effort au moins partiellement dans la rainure de couplage (5) et, pour l'application de la contrainte de traction, le levier de dépassement de point mort (41) est pressé au-delà de son point mort.
  8. Agencement de liaison selon la revendication 7, caractérisé par le fait que le levier de dépassement de point mort est prévu sur l'appendice d'introduction (8) et/ou l'axe de rotation (42) du levier de dépassement de point mort (41) est prévu pour pouvoir être introduit dans la rainure de couplage (5) et/ou l'appendice d'accrochage (7) est prévu articulé au levier de dépassement de point mort.
  9. Agencement de liaison selon l'une des revendications précédentes 7 ou 8, caractérisé par le fait qu'un levier de commande (43) pouvant être accroché à la gaine de couplage (2) et étant articulé au levier de dépassement de point mort (41) est prévu sur l'élément de couplage (6), qui est disposé et réalisé de telle sorte que le point mort est dépassé lors d'un actionnement du levier de commande (43).
  10. Agencement de liaison selon l'une des revendications précédentes 7 à 9, caractérisé par le fait que le levier de commande (43) peut être accroché à la gaine de couplage (2) dans une zone (44) qui est disposée à l'état monté au niveau du boulon de couplage, le levier de commande (43) présentant une surface d'appui (45) pour l'appendice d'accrochage (7), qui maintient l'appendice d'accrochage (7) à l'intérieur de la gaine de couplage (2) à la hauteur du boulon de couplage (4).
  11. Agencement de liaison selon la revendication 10, caractérisé par le fait que l'appendice d'accrochage (7) présente sur la face opposée au boulon de couplage (4), à l'état monté, une surface de forme oblique ou convexe (46), disposée de telle sorte que, à un état de montage intermédiaire, dans lequel le levier de commande (43) est accroché à la gaine de couplage (2) et l'appendice d'introduction (8) est introduit dans la gaine de couplage (5), l'appendice d'accrochage (7) est relevé au contact de la surface (46) avec le boulon de couplage (4) par l'introduction de l'appendice de couplage (3) dans la gaine de couplage (2).
  12. Agencement de liaison selon la revendication 11, caractérisé par le fait que l'appendice de couplage (3) peut être introduit dans la gaine de couplage (2) jusqu'à ce que le boulon de couplage (4) passe sous l'appendice d'accrochage (7) lors de l'introduction de l'appendice de couplage (3) dans la gaine de couplage (2) de telle sorte que l'appendice d'accrochage (7) adopte par basculement ou par agrippement, dans la direction de la surface d'appui (45), un état pré-enclenché avec le boulon de couplage (4).
  13. Meuble siège (10), en particulier une chaise de bureau pivotante, comportant au moins un support d'appui (11) et un support d'assise (12), le support d'appui (11) étant relié au moyen d'un agencement de liaison (1) selon l'une des revendications précédentes au support d'assise (12).
  14. Meuble siège selon la revendication 13, caractérisé par le fait que le meuble siège (10) est réalisé sous la forme d'une chaise de bureau pivotante à appui haut (10) avec un dossier (17), au moins un appendice de couplage (3) étant prévu sur le support d'assise (12), le support d'appui (11) étant réalisé sous la forme d'un support de dossier (11) et la gaine de couplage (2) étant prévue sur le support de dossier (11) et/ou des accoudoirs étant prévus avec au moins un support d'appui (11) réalisé sous la forme d'un accoudoir (11) et une gaine de couplage (2) étant prévue sur le support d'accoudoir (11).
  15. Procédé de montage pour le montage d'un support d'appui (11) sur un support d'assise (12), en particulier avec un agencement de liaison (1) selon l'une des revendications précédentes 1 à 12, comportant les étapes de :
    a) fourniture d'un appendice de couplage (3), sur lequel est fixé un boulon de couplage (4), d'une gaine de couplage (2), sur laquelle est prévue une rainure de couplage (5) et d'un élément de couplage (6), qui présente un appendice d'accrochage (7) et un appendice d'introduction (8) ;
    b) introduction de l'appendice de couplage (3) dans la gaine de couplage (2) ;
    c) accrochage de l'appendice d'accrochage (7) au boulon de couplage (4) ;
    d) introduction de l'appendice d'introduction (8) dans la rainure de couplage (5);
    e) application d'une contrainte de traction sur l'élément de couplage (6) entre l'appendice d'accrochage (7) et l'appendice d'introduction (8).
EP20130187636 2012-10-19 2013-10-08 Agencement de liaison d'un meuble siège, meuble siège et procédé de montage Active EP2721963B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201210219158 DE102012219158A1 (de) 2012-10-19 2012-10-19 Verbindungsanordnung eines Sitzmöbels, Sitzmöbel, Montageverfahren

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EP2721963A1 EP2721963A1 (fr) 2014-04-23
EP2721963B1 true EP2721963B1 (fr) 2015-03-04

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DE102021214820B4 (de) 2021-12-21 2023-10-19 Sedus Stoll Aktiengesellschaft Verbindungsanordnung und Bürostuhl

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IL99934A (en) * 1990-11-30 1994-10-07 La Z Boy Chair Co Back to the chair that can be unloaded
GB2422173A (en) * 2005-01-18 2006-07-19 Senator Internat Ltd Chair connection arrangement
US7306290B2 (en) * 2005-11-30 2007-12-11 L & G Property Management Company Knockdown attachment mechanism for a reclining chair

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