EP4382001B1 - Kopplungssystem für stuhlteile - Google Patents

Kopplungssystem für stuhlteile

Info

Publication number
EP4382001B1
EP4382001B1 EP22211584.2A EP22211584A EP4382001B1 EP 4382001 B1 EP4382001 B1 EP 4382001B1 EP 22211584 A EP22211584 A EP 22211584A EP 4382001 B1 EP4382001 B1 EP 4382001B1
Authority
EP
European Patent Office
Prior art keywords
chair
pin
coupling system
support structure
insert terminal
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.)
Active
Application number
EP22211584.2A
Other languages
English (en)
French (fr)
Other versions
EP4382001A1 (de
EP4382001C0 (de
Inventor
Massimo Costaglia
Alessandro Slongo
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.)
L&P Property Management Co
Original Assignee
L&P Property Management Co
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 L&P Property Management Co filed Critical L&P Property Management Co
Priority to EP22211584.2A priority Critical patent/EP4382001B1/de
Priority to PCT/EP2023/082486 priority patent/WO2024120814A1/en
Priority to CN202380080558.2A priority patent/CN120265185A/zh
Publication of EP4382001A1 publication Critical patent/EP4382001A1/de
Priority to MX2025005929A priority patent/MX2025005929A/es
Application granted granted Critical
Publication of EP4382001B1 publication Critical patent/EP4382001B1/de
Publication of EP4382001C0 publication Critical patent/EP4382001C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/42—Supports for the head or the back for the back of detachable or loose type

Definitions

  • the present invention relates to a coupling system for coupling chair parts, for example a backrest, an armrest, a footrest and a chair seat support structure.
  • the present invention relates to a system for coupling a part of a chair, for example a backrest or an armrest, to a chair seat support structure of the chair.
  • the present invention relates furthermore to a chair comprising the coupling system, and to a method of coupling parts of a chair using the coupling system.
  • a chair for example an office-type chair, may comprise a plurality of chair parts, for example a chair seat, a backrest and two armrests, and a chair base assembly, which are coupled to each other, for example via a chair seat support structure.
  • the chair base assembly and the chair seat support structure may support a height adjustment of the chair seat, an adjustment of an inclination of the chair seat and the backrest as well as an arrangement of the chair seat with respect to the backrest.
  • the chair may be shipped or sold in an at least partially disassembled state.
  • the backrest and/or the armrests may be separated from the chair seat support structure during shipping. After shipping and prior to use, the backrest and/or the armrests must be attached to the chair seat support structure.
  • the backrest and/or the armrests and the chair seat support structure are connected by screws or bolts, e.g. three or more screws for each of the backrest and the armrests, so tools are required to attach the screws or bolts and at least some manual skills are required to assemble the chair.
  • the tools e.g.
  • a chair may need to be stowed after being used, at least temporarily.
  • the backrest and/or the armrests may be detached from the chair seat support structure which again requires tools to remove the screws or bolts and at least some manual skills from the end user.
  • a coupling system for coupling a chair part of a chair to a chair seat support structure of the chair and a method of coupling a chair part of a chair to a chair seat support structure of the chair as defined in the independent claims.
  • the dependent claims define embodiments.
  • a coupling system for coupling a chair part of a chair to a chair seat support structure of the chair is provided.
  • the chair part may comprise a backrest, an armrest or a footrest.
  • the coupling system comprises a receiving support and an insert terminal.
  • the receiving support is to be provided at one of a connecting member of the chair part and the chair seat support structure.
  • the insert terminal is to be provided at the other one of the connecting member of the chair part and the chair seat support structure.
  • the connecting member of a backrest may be an arm-like element with one end coupled to the backrest and the other end provided to be coupled to the chair seat support structure.
  • the connecting member of an armrest may be an arm-like element with one end coupled to the armrest and the other end provided to be coupled to the chair.
  • the receiving support is to be provided at a connecting member of the chair part, and the insert terminal is to be provided at the chair seat support structure.
  • the receiving support is to be provided at the chair seat support structure, and the insert terminal is to be provided at a connecting member of the chair part.
  • a use position of the chair may be defined as a position in which each chair part is coupled to the chair seat support structure via a corresponding coupling system and the chair is placed on a substantially horizontal, flat surface, e.g. on the ground.
  • the insert terminal comprises a first pin and a second pin.
  • the first pin and the second pin In the use position of the chair, the first pin and the second pin extend horizontally from a vertical surface of the insert terminal. In the use position of the chair, the first pin and the second pin extend horizontally in a same direction from a same vertical surface of the insert terminal.
  • the receiving support provides a longitudinal support guide with a stop at a first end of the longitudinal support guide, and a pin insertion opening and a recess at a second end of the longitudinal support guide.
  • a distance between the stop and the recess is essentially the same as a distance between the first pin and the second pin such that the second pin can be inserted in the recess when the first pin abuts the stop.
  • the distance may be in a range of a few centimeters, e.g. in a range of 5 to 15 centimeters, e.g. 7 centimeters.
  • the receiving support is provided at the chair seat support structure
  • the insert terminal is provided at a backrest.
  • the first pin may be inserted, from the back of the chair, in the pin insertion opening of the longitudinal support guide while the backrest is slightly tilted in the forward direction.
  • the backrest may be moved, along with the insert terminal, in the forward direction such that the first pin slides along the longitudinal support guide of the receiving support until the first pin reaches the stop. At that point the backrest can be rotated to its normal position.
  • a normal position of the backrest may be a position in which a surface of the backrest, against which a user sitting on the chair may lean its back, is upright or slightly tilted backwards, for example in a range of zero to ten degrees.
  • the arrangement in which the backrest is slightly tilted in the forward direction may be a position in which the surface of the backrest is tilted a few degrees in the forward direction with respect to the normal position, for example the backrest may be tilted from the normal position in the forward direction by 5 to 10 degrees.
  • the recess at the second end of the longitudinal support guide allows the second pin to be housed in this recess, determining its fixed and stable position.
  • the backrest is rotated in the normal position without having inserted the insert terminal up to the correct final sliding position, i.e. until the first pin abuts at the stop, the second pin does not engage in the pin insertion opening and the recess and consequently the backrest continues to rotate without stabilizing, making it clear to a user immediately that assembly is incorrect.
  • the receiving support is provided at the chair seat support structure or the chair seat
  • the insert terminal is provided at an armrest, for example a left armrest.
  • the first pin may be inserted, from the left of the chair, in the pin insertion opening of the longitudinal support guide while the armrest is slightly tilted in the right direction.
  • the armrest may be moved, along with the insert terminal, in the right direction such that the first pin slides along the longitudinal support guide of the receiving support until the first pin reaches the stop. At that point the armrest can be rotated to its normal (not-tilted) position.
  • a normal position of the armrest may be a position in which a surface of the armrest, on which a user sitting on the chair may lay its underarm, is essentially horizontally aligned.
  • the arrangement in which the armrest is slightly tilted in the right direction may be a position in which the surface of the armrest is downward-tilted a few degrees in the right direction with respect to the normal position, for example the armrest may be tilted from the normal position in the right direction by 5 to 10 degrees.
  • the recess at the second end of the longitudinal support guide allows the second pin to be housed in this recess, determining its fixed and stable position.
  • the armrest is rotated in the normal position without having inserted the insert terminal up to the correct final sliding position, i.e. until the first pin abuts at the stop, the second pin does not engage in the pin insertion opening and the recess and consequently the armrest continues to rotate without stabilizing, making it clear to a user immediately that assembly is incorrect.
  • a simple and intuitive but error-proof armrest coupling system is achieved that can be reliably operated by a user or customer without requiring any tools or specific manual skills. It is clear to the person skilled in the art that a right armrest can be attached in an appropriate manner to a right side of the chair seat support structure by means of a corresponding coupling system.
  • the longitudinal support guide is formed in a vertical wall section of the receiving support.
  • the longitudinal support guide may be formed as a single longitudinal slot in the vertical wall section of the receiving support.
  • the vertical surface of the insert terminal from which the first and second pins extend may be arranged parallel and adjacent to the vertical wall section of the receiving support. The vertical surface of the insert terminal may contact the vertical wall section of the receiving support.
  • the insert terminal comprises a third pin and a fourth pin.
  • the third pin and the fourth pin In the use position of the chair, the third pin and the fourth pin extend horizontally from a further vertical surface of the insert terminal.
  • the further vertical surface is opposed to the vertical surface.
  • the vertical surface and the further vertical surface may be arranged spaced apart and parallel to each other.
  • the third pin and the fourth pin extend from the further vertical surface in a direction opposite to a direction in which the first pin and the second pin extend from the vertical surface.
  • the receiving support provides a further longitudinal support guide with a stop at a first end of the further longitudinal support guide, a pin insertion opening at a second end of the further longitudinal support guide, and a recess near the second end.
  • a distance between the stop and the recess is essentially the same as a distance between the third pin and the fourth pin such that the fourth pin is insertable in the recess when the third pin abuts the stop.
  • the distance between the first pin and the second pin may be the same as the distance between the third pin and the fourth pin.
  • the further longitudinal support guide may be formed in a further vertical wall section of the receiving support, which is opposed to the vertical wall section.
  • the further longitudinal support guide may be formed as a single longitudinal slot in the further vertical wall section of the receiving support.
  • the further longitudinal support guide may have essentially the same shape as the longitudinal support guide and may be spaced apart and parallel to the longitudinal support guide. In particular, in a direction of projection perpendicular to the vertical surface, the longitudinal support guide may be aligned with the further longitudinal support guide.
  • the longitudinal support guide in the use position of the chair, extends from the second end to the first end in a descending direction.
  • the longitudinal support guide may extend in a rear-to-front descending direction with the first end at the front and the second end at the rear.
  • the longitudinal support guide may extend in a left-to-right descending direction with the first end on the right and the second end on the left.
  • the longitudinal support guide may extend in a right-to-left descending direction with the first end on the left and the second end on the right.
  • the terms “left”, “right”, “rear” and “front” are defined with respect to the chair in its use position.
  • a “rear” location is closer to the backrest than a “front” position.
  • the term “descending” is defined with respect to ground on which the chair is arranged in its use position. i.e., the first end is closer to ground than the second end.
  • the recess may extend downward from a lower edge of the longitudinal support guide. The same may apply for the recess in the further longitudinal support guide.
  • the insert terminal may be provided at the chair part.
  • the receiving support may be provided at the chair seat support structure.
  • the first and third pins may be arranged at a front end of the corresponding vertical surfaces of the insert terminal, and the second and fourth pins may be arranged at a rear end of the corresponding vertical surfaces of the insert terminal.
  • the first and third pins may be inserted in the longitudinal support guide and the further longitudinal support guide, respectively, and the first and third pins may be moved along the longitudinal support guides into contact with the corresponding stops. While entering this stop position, the second and fourth pins may enter the pin insertion openings of the longitudinal support guides.
  • the second and fourth pins may have entered their corresponding longitudinal support guides and may be arranged above the corresponding recesses in the longitudinal support guides.
  • the backrest can be rotated to its normal position, i.e. the backrest may be rotated in the rearward direction. Rotating the backrest to its normal position moves the second and fourth pins down into the corresponding recesses of the longitudinal support guides. In the use position of the chair, the backrest is then held in the assembled position by gravity from the four pins.
  • a lower edge of recess in the use position of the chair, has essentially a same height as a lower edge of the first end of the longitudinal support guide.
  • the height is defined with respect to ground on which the chair is arranged in its use position.
  • the first to fourth pins may have essentially the same height with respect to ground.
  • the second and fourth pins i.e. the rear pins
  • the first and third pins i.e. the front pins.
  • the first to fourth pins may have essentially the same height with respect to ground.
  • the second and fourth pins i.e. the left pins at the left armrest and the right pins at the right armrest, respectively
  • the first and third pins i.e. the right pins at the left armrest and the left pins at the right armrest, respectively.
  • the receiving support is to be provided at the chair seat support structure as a separate element, i.e. the receiving support and the chair seat support structure are separate elements.
  • the receiving support may be mounted at the chair seat support structure, for example at a back support of the chair seat support structure which is coupled to a backrest tilt mechanism within the chair seat support structure.
  • the receiving support provides a mounting structure for coupling the receiving support to the back support of the chair seat support structure.
  • the receiving support may be provided with threaded holes for mounting the receiving support with screws at the chair seat support structure, for example at the back support. In this way, the coupling system can be used in combination with existing chair seat support structures.
  • the insert terminal is to be provided at the connecting member of the chair part as a separate element.
  • the insert terminal and the connecting member of the chair part are separate elements, and the insert terminal can be mounted at the connecting member of the chair part.
  • the insert terminal provides a mounting structure with which the insert terminal can be coupled to the connecting member.
  • the insert terminal may be provided with threaded holes for mounting the insert terminal with screws at the connecting member of the chair part. In this way, the coupling system can be used in combination with existing chair parts.
  • At least one of the insert terminal and the receiving support are integrally formed with at least one of the chair seat support structure and the connecting member of the chair part.
  • the insert terminal is provided at the connecting member of the chair part and is integrally formed with the connecting member.
  • at least the connecting member is part of the coupling system.
  • the receiving support may be integrally formed with the chair seat support structure, for example the back support of the tilt mechanism of the chair seat support structure.
  • the receiving support may be integrally formed at a left or right side of the chair seat support structure for mounting armrests.
  • the receiving support may be integrally formed at a left or right side of a lower side of the chair seat for mounting armrests.
  • the coupling system comprises a locking device.
  • the locking device is configured to lock a movement of the insert terminal with respect to the receiving support once the first pin abuts the stop and the second pin is inserted in the recess.
  • the locking device may comprise a spring biased retaining tooth at the insert terminal and a matching ratchet edge at the receiving support.
  • the retaining tooth may have a slanted surface which slides along a corresponding (slanted) surface of the ratchet edge, when the chair part is moved from the slightly tilted position to its normal position. During this movement, the spring biased retaining tooth may be urged and moved against the spring bias such that the bias is increased.
  • the retaining tooth When the chair part reaches its normal position, the retaining tooth may snap into a recess at an end of the ratchet edge such that the chair part is locked in this position and cannot be moved back in the slightly tilted position. In this way, a reliable fixture of the chair part with respect to the chair seat support structure can be achieved.
  • the retaining tooth may be provided with a means for manually moving the retaining tooth against the spring bias such that the retaining tooth is unlocked from the recess at the end of the ratchet edge, and the chair part can be tilted, for example rotated in the forward direction in case of a coupling system for a backrest. The backrest can then be moved in the backward direction to be detached from the chair seat support structure.
  • a method of coupling a chair part of a chair to a chair seat support structure of the chair is provided.
  • the chair is provided with the above described coupling system.
  • the chair part is arranged with respect to the chair seat support structure such that the first pin is inserted in the pin insertion opening.
  • the chair part is moved with respect to the chair seat support structure until the first pin abuts the stop and the second pin is inserted in the pin insertion opening.
  • the chair part is pivoted around the first pin such that the second pin is inserted in the recess.
  • the coupling system comprises the above-described locking device, the retaining tooth automatically engages with the ratchet edge such that the insert terminal is locked in the receiving support and consequently the chair part is fixedly mounted at the chair seat support structure.
  • a chair comprising a chair base assembly, a chair seat, a chair seat support structure and further chair parts.
  • the chair parts may comprise a backrest, a left armrest, a right armrest and/or a footrest.
  • the chair seat support structure may comprise a tilt mechanism which enables a movement of the chair seat and/or the backrest with respect to the chair base assembly. The tilt mechanism may enable a coordinated movement between the chair seat and the backrest.
  • the chair base assembly is attached to a base of the chair seat support structure, the chair seat is attached to a seat support of the chair seat support structure, and at least one of the chair parts is attached to the chair seat support structure via the above described coupling system.
  • the backrest is attached to a back support of the chair seat support structure via the above described coupling system.
  • each of the left and right armrests may be coupled to the chair seat support structure via a corresponding one of the above described coupling system.
  • the receiving support of the coupling system is provided at one of a connecting member of the chair part and the chair seat support structure, and the insert terminal of the coupling system is provided at the other one of the connecting member of the chair part and the chair seat support structure.
  • the coupling system may be utilized for various applications in which a chair part is to be mounted at a chair.
  • the coupling system may be utilized in an office chair, a living room chair or a workshop chair.
  • Figs. 1 and 2 show a chair 100 which includes one or more coupling systems 200 of an embodiment.
  • the chair 100 is illustrated to be an office-type chair having a chair base assembly 102 and a superstructure.
  • the superstructure includes a chair seat 104, a backrest 106 and a chair seat support structure 108 to interconnect the chair base assembly 102, the seat 104 and the backrest 106.
  • the chair seat support structure 108 may include a tilt mechanism for effecting a coordinated motion of the backrest 106 and the chair seat 104.
  • the base assembly 102 includes a pedestal column 110, a number of support legs 112 extending radially from the column 110 and a corresponding number of casters 114 supported on the outer ends of the support legs 112.
  • a gas cylinder or any other lifting mechanism 116 may be supported by the column 110 to enable the height of the seat 104, and thus of the chair superstructure, to be adjusted by a user.
  • the chair 100 can be equipped with armrests 306, 506. Details on mounting the armrests at the chair 100 will be described in more details in connection with Figs. 18 to 21 .
  • the backrest 106 and the armrests 306, 506 may be separated from the superstructure of the chair 100.
  • the backrest 106 may be separated from the chair seat support structure 108.
  • the chair 100 is provided with the coupling system 200.
  • the backrest 106 is detachable from the chair seat support structure 108 such that the backrest 106 can be packaged, stowed and/or transported separately from the remaining components of the chair 100.
  • the remaining components of the chair may also be separable, at least in part, from one another for packing, stowing, and/or transporting.
  • front refers to a side of the chair seat at which the knees of the user are arranged and the legs are suspending
  • rear refers to a side of the chair seat where the back of the user and the backrest are arranged.
  • left refers to the left hand side of the chair seat as seen from the user sitting on the chair
  • right refers to the right hand side of the chair seat as seen from the user sitting on the chair
  • bottom refers to the side facing to the flat support surface beneath the chair
  • top refers to the side facing away from the flat support surface beneath the chair. It may be assumed that the resulting directions front-rear, left-right and top-bottom represent the axes of a three dimensional Cartesian coordinate system, usually named X-axis, Y-axis and Z-axis, respectively, which are orthogonal to each other.
  • the front-rear and the left-right directions may extend in the plane of the flat support surface and the top-bottom direction may extend in a direction perpendicular to the flat support surface.
  • the terms “vertical”, “horizontal”, “forward”, “rearward” and “lateral(ly)” as used herein, also each have a particular meaning that is defined in relation to the flat support surface or ground beneath the chair and in relation to the user of the chair.
  • forward refers to a direction moving away from the backrest and in front of a chair user along an axis which extends parallel to such a flat support surface
  • rearward refers to a direction opposite to the forward direction.
  • the term “horizontal” refers to a direction that is substantially parallel to the ground, and the term “vertical” refers to a direction that is substantially perpendicular to the ground.
  • lateral refers to a generally horizontal direction perpendicular to both the forward and rearward direction and extending parallel to the aforementioned flat support surface.
  • terms like “to the left” and “to the right” are lateral directions as seen from a user sitting on the chair.
  • Tilting or inclining in the forward direction for example tilting the backrest such that the top of the backrest moves forward to a greater extent than the bottom of the backrest may be considered as a rotation around an axis of rotation which extends in the left-right direction.
  • Tilting or inclining in the rearward direction may be considered as an opposite motion to the tilting or inclining in the forward direction.
  • tilting the backrest in the rearward direction may mean that an upper section of the backrest moves to the rear with respect to the lower section of the backrest.
  • Tilting or inclining to the right for example tilting the armrest 306 such that the top of the armrest 306 moves to the right to a greater extent than the bottom of the armrest 306 may be considered as a rotation around an axis of rotation which extends in the front-rear direction.
  • Tilting or inclining to the left may be considered as an opposite motion to the tilting or inclining to the right.
  • tilting the armrest 306 to the left may mean that an upper section of the armrest 306 moves to the left with respect to the lower section of the armrest 306.
  • the backrest in particular when being tilted, does not extend exactly and only in the top-bottom and left-right directions. However, it is clear to a person skilled in the art that also in this tilted condition, the backrest essentially extends in the top-bottom and the left-right directions.
  • the backrest and/or the armrests of the chair are fixed with screws, e.g. each by three or more screws.
  • a tool is required, e.g. an Allen key or a screwdriver.
  • the coupling system 200 simplifies the assembly of the chair 100 by a customer or end user. Assembly of the chair 100 does not require the end user or customer to attach a chair part, e.g. the backrest 106, to the chair seat support structure 108 with screws. Consequently, no tools are required to mount the chair part.
  • a chair part e.g. the backrest 106
  • the coupling system 200 will be described in Figs. 1 to 17 in connection with mounting the backrest 206.
  • the coupling system 200 is not limited to mounting the backrest 206, but can be used for mounting other types of chair parts, for example an armrest 306 as described in connection with Figs. 18 to 21 or a footrest.
  • the coupling system 200 comprises an insert terminal 202 and a matching receiving support 204.
  • the insert terminal 202 can be inserted into an opening in the receiving support 204 as will be described below in connection with Figs. 3-6 .
  • the insert terminal 202 may be provided at a connecting member 120 of the back support 106.
  • a first end of the connecting member 120 is connected to the backrest 106 and a second end of the connecting member 120 is to be connected to the chair seat support structure 108. Therefore, the second end of the connecting member 120 is provided with the insert terminal 202.
  • the receiving support 204 may be provided at the chair seat support structure 108. However, this is only an example and in other examples, the insert terminal 202 may be provided at the chair seat support structure 108 and the receiving support 204 may be provided at the second end of the connecting member 120.
  • the insert terminal 202 is equipped with a pair of lateral pins, a front pin and a rear pin. These pins can slide along a longitudinal support guide of the receiving support 204.
  • the longitudinal support guide extends in a rear-to-front descending direction, i.e. the rear end of the longitudinal support guide is on a higher level with respect to ground than the front end of the longitudinal support guide.
  • the user For mounting the backrest 106, the user holds the backrest 106 in an upright position.
  • This upright position may be considered as a position in which the backrest 106 is slightly tilted in the forward to direction compared to a normal position of the backrest 106.
  • the normal position is illustrated for example in Figs.1 , 2 and 6 . In this normal position, the backrest 106 is slightly tilted in the rearward direction as it is common for a chair in an unloaded condition.
  • the backrest 106 is moved in the forward direction as indicated by arrow 300 such that the front pin is inserted in the longitudinal support guide. See Fig. 4 .
  • the longitudinal support guide guides the front pin until it reaches the end of travel of the longitudinal support guide.
  • the rear pin also enters the longitudinal support guide.
  • the backrest 106 can be rotated rearward to its normal position which represents the assembled state. See Fig. 6 .
  • the particular shape of the longitudinal support guide with a recess extending downward from a lower edge of the longitudinal support guide at the rear end of the longitudinal support guide allows the rear pin to be accommodated in this recess, determining its fixed and stable position.
  • the coupling system 200 facilitates a quick attachment of the backrest 106 to the chair seat support structure 108 by an end user without the necessity for tools or screws or bolts.
  • This coupling system 200 allows chairs to be shipped and sold in a "knock-down" kit form in smaller more cost efficient packaging.
  • Figs. 7 to 9 show the receiving support 204 and the insert terminal 202 of the coupling system 200 in more detail.
  • the chair seat support structure 108 comprises a back support 118 for connecting the backrest 106.
  • the back support 118 may be coupled to a tilt mechanism of the chair seat support structure 108 which provides a coordinated movement of the chair seat 104 and the backrest 106.
  • the tilt mechanism may coordinate inclinations of the chair seat 104 and the backrest 106.
  • the back support 118 may have a U-shape and may be made of plastics or metal.
  • the receiving support 204 may be a molded plastic part which can be fixed at the back support 118 in the factory.
  • the receiving support 204 may be fixed at the back support 118 by screws, for example three or more screws which are inserted from the lower side of the back support 118.
  • the receiving support 204 may provide an opening into which the insert terminal 202 can be inserted, at least partially.
  • a first longitudinal support guide 206 is provided at a vertical surface at the right side of the receiving support 204.
  • a second longitudinal support guide 208 is provided at a vertical surface at the left side of the receiving support 204.
  • Each of the longitudinal support guides 206, 208 has an open end at the rear end acting as a pin insertion opening and a stop at the front end.
  • the rear end is designated as the first end
  • the front end is designated as the second end.
  • each of the longitudinal support guides 206, 208 has a recess at the rear end which extends in the downward direction.
  • the arrangement and design of the first longitudinal support guide 206 and the arrangement and design of the second longitudinal support guide 208 may be mirror-symmetrical with respect to a mirror plane extending vertically from front to rear centrally through the receiving support 204.
  • the insert terminal 202 is provided with a first pin 210 and a second pin 212, which both extend laterally in a horizontal right direction from a vertical surface at the right side of the insert terminal 202. Furthermore, although not visible in Fig. 7 , the insert terminal 202 is provided with a third pin and a fourth pin, which both extend laterally in a horizontal left direction from a vertical surface at the left side of the insert terminal 202.
  • the insert terminal 202 may be integrally formed with the connecting member 120 of the backrest 106.
  • the insert terminal 202 and the connecting member 120 of the backrest 106 may be separate parts which are connected to each other via gluing, screws or bolts in the factory.
  • a distance in between the first pin 210 and the second pin 212 may be essentially the same as the distance between the stop at the front end of the receiving support 204 and the recess at the rear end of the receiving support 204.
  • a distance between the first pin 210 and the second pin 212 may be essentially the same as a distance between the third pin and the fourth pin.
  • the design and arrangement of the first and second pins 210, 212 and the design and arrangement of the third and fourth pins may be mirror-symmetrical with respect to a mirror plane extending vertically from front to rear centrally through the insert terminal 202.
  • Fig. 8 shows the assembled state.
  • the receiving support 204 is fixed at the back support 118.
  • the backrest 106 is mounted at the chair seat support structure 108 as described above in connection with Figs. 3 to 6 , i.e. the insert terminal 202 is inserted into the receiving support 204, the first 210 and third pins abut at corresponding stops of the corresponding longitudinal support guides 206, 208, and the second 212 and fourth pins engage with the corresponding recesses of the corresponding longitudinal support guides 206, 208.
  • Fig. 9 shows another example of the coupling system 200.
  • the receiving support is formed integrally with the back support, i.e. the receiving support 204 is a part of the tilt mechanism of the chair seat support structure 108 and there is no separate back support as the back support 118 in Fig. 7 .
  • Functionality and structure of the receiving support 204 of Fig. 9 are essentially the same as the functionality and structure of the receiving support 204 of Fig. 7 , i.e. the receiving support 204 provides the first and second longitudinal support guides 206, 208 for receiving the first and second pins 210, 212 and the third and fourth pins, respectively.
  • Figs. 10 to 13 show the features and functionality of the coupling system 200 in more detail.
  • the insert terminal 202 is provided at the connecting member 120 of the backrest 106.
  • the insert terminal 202 may be integrally formed with the connecting member 120, or may be designed as a separate element which is mounted at the connecting member 120, for example by means of screws or adhesives.
  • the receiving support 204 is provided at the chair seat support structure 108 as part of the tilt mechanism of the chair seat support structure 108. However, as described above in connection with Figs. 7 and 8 , the receiving support 204 may be a separate component which is mounted in the factory at a back support of the chair seat support structure 108.
  • the insert terminal 202 may be provided at the chair seat support structure 108, either as an integral part of the tilt mechanism or as a separate part coupled to the back support, and the receiving support 204 may be provided at the connecting member 120 of the backrest 106, either integrally formed with the connecting member 120 or as a separate part coupled to the connecting member 120 in the factory.
  • the insert terminal 202 is provided with a first (front) pin 210 and a second (rear) pin 212 at a vertical surface 214 at the right side of the insert terminal 202.
  • the insert terminal 202 is provided with a third (front) pin and a fourth (rear) pin at a vertical surface at the left side of the insert terminal 202.
  • the first pin 210 and the second pin 212 extend in a horizontal direction to the right from the vertical surface 214.
  • the third and fourth pins extend in a horizontal direction to the left from the corresponding vertical surface at the left side.
  • the receiving support 204 has a rear opening into which the insert terminal 202 can be inserted. Furthermore, in left and right vertical wall sections 222 and 224 of the receiving support 204, each a corresponding longitudinal support guide 206 and 208, respectively, is provided. Each of the longitudinal support guides 206, 208 is formed as a corresponding slot in the corresponding wall sections 222, 224. Each of the longitudinal support guides 206, 208 extends from a rear end of the receiving support 204 in a slightly descending way to the front. At the front end of each of the longitudinal support guides 206 and 208 a stop is provided. In Fig. 10 only the stop 216 of the longitudinal support guide 206 at the right side is visible.
  • each of the longitudinal support guides 206 and 208 a corresponding opening is provided for inserting the pins of the insert terminal 202 when inserting the insert terminal 202 into the receiving support 204.
  • the pin insertion opening 218 of the longitudinal support guide 206 at the right side is visible.
  • a corresponding recess is provided which extends in the downward direction.
  • the recess 220 of the longitudinal support guide 206 at the right side is visible only.
  • a distance between the stop 216 and the recess 220 of the longitudinal support guide 206 corresponds essentially to the distance between the first and second pins 210 and 212 at the insert terminal 202.
  • a distance between the stop and the recess of the longitudinal support guide 208 corresponds essentially to the distance between the third and fourth pins at the insert terminal 202.
  • the backrest 106 is moved from the rear to the front together with the insert terminal 202 as indicated by arrow 300 (see also Fig. 3 ). While moving the backrest 106 in the direction of arrow 300, the first pin 210 is aligned with the pin insertion opening 218 and likewise the third pin is aligned with the corresponding pin insertion opening of the longitudinal support guide 208. Thus, as shown in Fig. 11 , the first pin 210 slides in the forward direction along the longitudinal support guide 206 and the third pin slides in the forward direction along the longitudinal support guide 208.
  • the backrest 106 is moved further in the forward direction (arrow 300) until the first pin 210 abuts at the stop 216 and the third pin abuts at the corresponding stop of longitudinal support guide 208.
  • This state is shown in Fig. 12 .
  • the second pin 212 is now at the pin insertion opening 218.
  • the fourth pin is also at the pin insertion opening of the longitudinal support guide 208.
  • the insert terminal 202 a can be rotated around an axis of rotation which extends through the centers of the first pin 210 and the third pin, i.e. the axis of rotation extends horizontally in the left/right direction.
  • the insert terminal 202 a can be rotated around an axis of rotation which extends through the centers of the first pin 210 and the third pin, i.e. the axis of rotation extends horizontally in the left/right direction.
  • the insert terminal 202 can be rotated as indicated by arrow 302 such that the second pin 212 enters the recess 220.
  • the fourth pin enters the corresponding recess in the longitudinal support guide 208 in the same way. In this manner, an assembled state with a correct intended position of the insert terminal 202 with respect to the receiving support 204 is achieved.
  • the backrest 106 If the user rotates the backrest 106 without having inserted the insert terminal 202 up to the correct final sliding position at the stop 216, the second pin 212 and the fourth pin will not enter in the corresponding pin insertion openings and recesses, and consequently the backrest 106 continues to rotate in the downward direction without being reliably supported by the receiving support 204. This indicates to the user that the assembly operation has not been performed correctly.
  • a locking is performed by means of a locking device 250 as will be described below in connection with Figs. 14 to 17 .
  • the locking device 250 comprises a retaining tooth 252 at the insert terminal 202 and a ratchet edge 256 at the receiving support 204.
  • the retaining tooth or 252 may be provided at a lower rear end of the insert terminal 202 in a center in the left/right direction of the insert terminal 202.
  • the ratchet edge 256 may be provided at a lower rear end of the receiving support 204 in a center in the left/right direction of the receiving support 204.
  • a recess 260 is provided which is dimensioned such that it can receive the retaining tooth the 252 at least partially.
  • the retaining tooth 252 is biased in the forward direction by means of a spring 254.
  • the retaining tooth 252 When the insert terminal 202 is inserted in the receiving support 204, the retaining tooth 252 is urged by means of the spring 254 in the forward direction up to a position where it is stopped in the forward direction by the limiting element 258. In this position, the retaining tooth 252 protrudes from a surface 262 as shown in Fig. 14 .
  • the insert terminal 202 is moved in the forward direction into the opening of the receiving supported 204 until the first pin 210 and the third pin abut against the corresponding stops of the longitudinal support guides 206, 208 as shown in Fig. 16 .
  • a front end 264 of the insert terminal 202 may also abut against a stop surface 266 of the receiving support 204, and an oblique surface of the retaining tooth 252 is a close to or in contact with the ratchet edge 256.
  • the backrest 106 is pivoted in the rear direction around the axis of rotation which extends through the centers of the first pin 210 and the third pin. Together with the backrest 106, the connecting member 120 and the insert terminal 202 are rotated in the direction of arrow 302, i.e. in a downward direction. As a result, the oblique surface of the retaining tooth 252 is urged by the ratchet edge 256 in the backward direction against the bias provided by the spring 254.
  • the second pin 212 and the fourth pin are inserted in the corresponding recesses in the longitudinal support guides 206, 208, the retaining tooth 252 has passed the ratchet edge 256 and snaps into the recess at 260 in the forward direction driven by the spring 254.
  • the locking device 250 blocks a movement of the insert terminal 202 in the upward direction such that the backrest 106 is reliably hooked in this position and inadvertent disassembly of the backrest 106 is prevented.
  • the retaining tooth 252 has to be moved in the rearward direction such that it can pass the ratchet edge 256 when the insert terminal 202 is moved upwards.
  • Moving the retaining tooth 252 in the rearward direction may be accomplished by inserting a screwdriver in the head of the limiting element 258 and moving the limiting element 258 in the rearward direction.
  • the limiting element 258 may protrude from a lower surface of the insert terminal 202 such that a user can push the limiting element 258 with a finger in the rearward direction, thus releasing the locking of the insert terminal 202 in the receiving support 204.
  • the user may push the backrest 106 in the forward direction such that a position as shown in Figs. 5 , 12 and 16 is achieved. From this position, the backrest 106 can be completely separated from the chair seat support structure 108 by moving it in the rearward direction.
  • the chair 100 may include further coupling systems for mounting armrests 306, 506.
  • a coupling system 400 for mounting a left armrest 306 is visible.
  • a corresponding further coupling system may be provided at the right of the chair 100 for mounting a right armrest 506.
  • the coupling system 400 is coupled to a lower side of the chair seat 104 and this lower side of the chair seat 104 is coupled to the seat support structure 108. Therefore, the coupling system 400 is provided at the support structure 108 via the lower side of the chair seat 104.
  • the coupling system 400 may be provided directly at the seat support structure 108.
  • the armrests 306, 506 may be separated from the superstructure of the chair 100.
  • the armrest 306 may be separated from the chair 100.
  • the chair 100 is provided with the coupling system 400.
  • the armrest 306 is detachable from the chair 100 such that the armrest 306 can be packaged, stowed and/or transported separately from the remaining components of the chair 100.
  • the remaining components of the chair 100 may also be separable, at least in part, from one another for packing, stowing, and/or transporting.
  • the coupling system 400 comprises the insert terminal 202 and the matching receiving support 204 as described above in connection with the coupling system 200 for the backrest 106.
  • the insert terminal 202 can be inserted into an opening in the receiving support 204 as will be described below in connection with Figs. 19-21 .
  • FIG. 19-21 each show an isometric partial view of the chair 100 showing the armrest and the coupling system 400 on the right-hand side and an enlarged isometric view of the coupling system 400 at the left-hand side.
  • the insert terminal 202 may be provided at a connecting member 320 of the armrest 306.
  • a first (upper) end of the connecting member 320 is connected to the armrest 306 and a second (lower) end of the connecting member 320 is to be connected to the chair seat 104 or the chair seat support structure 108. Therefore, the second end of the connecting member 320 is provided with the insert terminal 202.
  • the receiving support 204 may be provided at the chair seat 104 or the chair seat support structure 108. However, this is only an example and in other examples, the insert terminal 202 may be provided at the chair seat 104 or the chair seat support structure 108, and the receiving support 204 may be provided at the second end of the connecting member 320.
  • the insert terminal 202 is equipped with a pair of lateral pins, a right pin 210 and a left pin 212. These pins can slide along a longitudinal support guide 206 of the receiving support 204.
  • the longitudinal support guide 206 extends in a left-to-right descending direction, i.e. the left end of the longitudinal support guide 206 is on a higher level with respect to ground than the right end of the longitudinal support guide 206.
  • the whole arrangement is mirrored along the front-and rear axis. Consequently, for the right armrest 506, the longitudinal support guide extends in a right-to-left descending direction, i.e.
  • the right end of the longitudinal support guide is on a higher level with respect to ground than the left end of the longitudinal support guide.
  • mounting of the left armrest 306 will be described in more detail. Mounting the right armrest 506 may be accomplished in essentially the same way, but with the directions “left” and "right” exchanged.
  • the user For mounting the left armrest 306, the user holds the armrest 306 in a position which is slightly tilted in the direction to the seat center compared to the "normal" or use position in which the armrest 306 is expected to be in a mounted state.
  • the "normal" or use position is for example shown in Fig. 21 .
  • the left armrest 306 may be slightly tilted to the right as shown in Fig. 19 .
  • the left armrest 306 is moved in the right direction as indicated by arrow 500 such that the right pin 210 is inserted in the longitudinal support guide 206.
  • the longitudinal support guide 206 guides the right pin 210 until it reaches the end of travel of the longitudinal support guide 206. See Fig. 20 .
  • the left pin 212 also enters the longitudinal support guide 206.
  • the armrest 306 can be pivoted away from the seat center to its normal position which represents the assembled state. See arrow 502 in Fig. 20 .
  • the particular shape of the longitudinal support guide 206 with a recess extending downward from a lower edge of the longitudinal support guide 206 at the left end of the longitudinal support guide 206 allows the left pin 212 to be accommodated in this recess, determining its fixed and stable position. See Fig. 21 .
  • the coupling system 400 facilitates a quick attachment of the armrest 306 to the chair seat 104 or the chair seat support structure 108 by an end user without the necessity for tools or screws or bolts.
  • This coupling system 400 allows chairs to be shipped and sold in a "knock-down" kit form in smaller more cost efficient packaging.
  • the receiving support 204 may be fixed at the chair seat 104 by screws, for example four screws.
  • the receiving support 204 may be a molded plastic part or made of metal and can be fixed at the chair seat 104 in the factory. This allows the coupling system 400 to be applied to a variety of chairs.
  • the coupling system 400 for the armrest 306 has similar or identical features as the coupling system 200 for the backrest 106 described above.
  • the receiving support 204 may provide an opening into which the insert terminal 202 can be inserted, at least partially.
  • the (first) longitudinal support guide 206 is provided at a vertical surface at the rear side of the receiving support 204.
  • a second longitudinal support guide 208 is provided at a vertical surface at the front side of the receiving support 204.
  • Each of the longitudinal support guides 206, 208 has an open end at the left end acting as a pin insertion opening and a stop at the right end.
  • the left end is designated as the first end
  • the right end is designated as the second end.
  • each of the longitudinal support guides 206, 208 has a recess at the left end which extends in the downward direction.
  • the arrangement and design of the first longitudinal support guide 206 and the arrangement and design of the second longitudinal support guide 208 may be mirror-symmetrical with respect to a mirror plane extending vertically from left to right centrally through the receiving support 204.
  • the insert terminal 202 is provided with the right (in the claims: first pin) pin 210 and the left (in the claims: second pin) pin 212, which both extend laterally in a horizontal rear direction from a vertical surface at the rear side of the insert terminal 202. Furthermore, although not visible in Figs. 18-21 , the insert terminal 202 may be provided with a third pin and a fourth pin, which both extend laterally in a horizontal front direction from a vertical surface at the front side of the insert terminal 202. In some implementations, the insert terminal 202 may be integrally formed with the connecting member 320 of the armrest 306. In other implementations, the insert terminal 202 and the connecting member 320 of the armrest 306 may be separate parts which are connected to each other via gluing, screws or bolts in the factory.
  • a distance in between the right (first) pin 210 and the left (second) pin 212 may be essentially the same as the distance between the stop at the right end of the receiving support 204 and the recess at the left end of the receiving support 204.
  • a distance between the right (first) pin 210 and the left (second) pin 212 may be essentially the same as a distance between the third pin and the fourth pin.
  • the design and arrangement of the right (first) and left (second) pins 210, 212 and the design and arrangement of the third and fourth pins may be mirror-symmetrical with respect to a mirror plane extending vertically from left to right centrally through the insert terminal 202.
  • Fig. 21 shows the assembled state.
  • the armrest 306 is mounted at the chair 100, i.e. the insert terminal 202 is inserted into the receiving support 204, the first 210 and third pins abut at corresponding stops of the corresponding longitudinal support guides 206, 208, and the second 212 and fourth pins engage with the corresponding recesses of the corresponding longitudinal support guides 206, 208.
  • a locking may be performed by means of a locking device 250 as described above in connection with Figs. 14 to 17 .

Landscapes

  • Chairs Characterized By Structure (AREA)
  • Seats For Vehicles (AREA)

Claims (17)

  1. Kopplungssystem zum Koppeln eines Stuhlteils (106) eines Stuhls (100) an eine Stuhlsitzträgerstruktur (108) des Stuhls (100), umfassend:
    einen Aufnahmeträger (204), der an einem Verbindungselement (120) des Stuhlteils (106) und/oder der Stuhlsitzträgerstruktur (108) vorzusehen ist,
    einen Einführanschluss (202), der an dem anderen zwischen dem Verbindungselement (120) des Stuhlteils (106) und der Stuhlsitzträgerstruktur (108) vorzusehen ist,
    wobei der Einführanschluss (202) einen ersten Stift (210) und einen zweiten Stift (212) umfasst,
    wobei sich in einer Gebrauchsposition des Stuhls (100), in der das Stuhlteil (106) über das Kopplungssystem (200) an die Stuhlsitzträgerstruktur (108) gekoppelt ist,
    der erste Stift (210) und der zweite Stift (212) horizontal von einer vertikalen Fläche (214) des Einführanschlusses (202) erstrecken,
    wobei der Aufnahmeträger (204) eine Längsträgerführung (206) mit einem Anschlag (216) an einem ersten Ende der Längsträgerführung (206) und einer Stifteinführöffnung (218) und einer Aussparung (220) an einem zweiten Ende der Längsträgerführung (206) vorsieht,
    dadurch gekennzeichnet, dass
    das Stuhlteil (106) und die Stuhlsitzträgerstruktur (108) so konfiguriert sind, dass sie ein Kopplungsverfahren ermöglichen, das die folgenden Schritte umfasst:
    Anordnen des Stuhlteils (106) in Bezug auf die Stuhlsitzträgerstruktur (108), so dass der erste Stift (210) in die Stifteinführöffnung (218) eingeführt wird,
    Bewegen (300) des Stuhlteils (106) in Bezug auf die Stuhlsitzträgerstruktur (108), bis der erste Stift (210) an dem Anschlag (216) anliegt und der zweite Stift (212) in die Stifteinführöffnung (218) eingeführt wird, und
    Schwenken (302) des Stuhlteils (106) um den ersten Stift (210), so dass der zweite Stift (212) in die Aussparung (220) eingeführt wird, und dadurch, dass ein Abstand zwischen dem Anschlag (216) und der Aussparung (220) im Wesentlichen gleich einem Abstand zwischen dem ersten Stift (210) und dem zweiten Stift (212) ist, so dass der zweite Stift (212) in die Aussparung (220) eingeführt werden kann, wenn der erste Stift (210) an dem Anschlag (216) anliegt.
  2. Kopplungssystem nach Anspruch 1, wobei die Längsträgerführung (206) in einem vertikalen Wandabschnitt (222) des Aufnahmeträgers (204) ausgebildet ist.
  3. Kopplungssystem nach Anspruch 2, wobei die Längsträgerführung (206) als ein einziger Längsschlitz in dem vertikalen Wandabschnitt (222) des Aufnahmeträgers (204) ausgebildet ist.
  4. Kopplungssystem nach Anspruch 3, wobei der Einführanschluss (202) einen dritten Stift und einen vierten Stift umfasst,
    wobei sich in der Gebrauchsposition des Stuhls (100) der dritte Stift und der vierte Stift horizontal von einer weiteren vertikalen Fläche des Einführanschlusses (202) erstrecken, wobei die weitere vertikale Fläche der vertikalen Fläche (214) gegenüberliegt, und sich der dritte Stift und der vierte Stift von der weiteren vertikalen Fläche in einer Richtung entgegengesetzt zu einer Richtung erstrecken, in der sich der erste Stift (210) und der zweite Stift (212) von der vertikalen Fläche (214) erstrecken,
    wobei der Aufnahmeträger (204) eine weitere Längsträgerführung (208) mit einem Anschlag an einem ersten Ende der weiteren Längsträgerführung (208), einer Stifteinführöffnung an einem zweiten Ende der weiteren Längsträgerführung (208) und einer Aussparung in der Nähe des zweiten Endes vorsieht, wobei ein Abstand zwischen dem Anschlag und der Aussparung im Wesentlichen gleich einem Abstand zwischen dem dritten Stift und dem vierten Stift ist, sodass der vierte Stift in die Aussparung einführbar ist, wenn der dritte Stift an dem Anschlag anliegt.
  5. Kopplungssystem nach Anspruch 4, wobei die weitere Längsträgerführung (208) in einem weiteren vertikalen Wandabschnitt (224) des Aufnahmeträgers (204) ausgebildet ist, wobei der weitere vertikale Wandabschnitt (224) dem vertikalen Wandabschnitt (222) gegenüberliegt.
  6. Kopplungssystem nach Anspruch 5, wobei die weitere Längsträgerführung (208) als ein einziger Längsschlitz in dem weiteren vertikalen Wandabschnitt (224) des Aufnahmeträgers (204) ausgebildet ist.
  7. Kopplungssystem nach einem der Ansprüche 4-6, wobei die weitere Längsträgerführung (208) im Wesentlichen die gleiche Form wie die Längsträgerführung (206) aufweist und beabstandet und parallel zu der Längsträgerführung (206) ist.
  8. Kopplungssystem nach einem der vorhergehenden Ansprüche, wobei das Kopplungssystem so konfiguriert ist, dass sich die Längsträgerführung (206) in der Gebrauchsposition des Stuhls (100) von dem zweiten Ende zu dem ersten Ende in einer absteigenden Richtung erstreckt.
  9. Kopplungssystem nach einem der vorhergehenden Ansprüche, wobei das Kopplungssystem so konfiguriert ist, dass sich die Aussparung (220) in der Gebrauchsposition des Stuhls (100) von einer unteren Kante der Längsträgerführung (206) nach unten erstreckt.
  10. Kopplungssystem nach einem der vorhergehenden Ansprüche, wobei das Kopplungssystem so konfiguriert ist, dass in der Gebrauchsposition des Stuhls (100) eine untere Kante der Aussparung (220) im Wesentlichen die gleiche Höhe wie eine untere Kante des ersten Endes der Längsträgerführung (206) aufweist.
  11. Kopplungssystem nach einem der vorhergehenden Ansprüche, wobei der Aufnahmeträger (204) so konfiguriert ist, dass er an der Stuhlsitzträgerstruktur (108) als separates Element vorgesehen werden soll, und eine Montagestruktur zum Koppeln des Aufnahmeträgers mit einem Rückenträger (118) der Stuhlsitzträgerstruktur (108) vorsieht.
  12. Kopplungssystem nach einem der vorhergehenden Ansprüche, wobei der Einführanschluss (202) an dem Verbindungselement (120) des Stuhlteils (106) als separates Element vorgesehen werden soll und eine Montagestruktur zum Koppeln des Einführanschlusses (202) mit dem Verbindungselement (120) vorsieht.
  13. Kopplungssystem nach einem der Ansprüche 1-11, ferner umfassend das Verbindungselement (120) des Stuhlteils (106), wobei der Einführanschluss (202) an dem Verbindungselement (120) vorgesehen ist und einstückig mit dem Verbindungselement ausgebildet ist.
  14. Kopplungssystem nach einem der vorhergehenden Ansprüche, wobei das Kopplungssystem (200) eine Verriegelungsvorrichtung (250) umfasst, wobei die Verriegelungsvorrichtung (250) dazu konfiguriert ist, eine Bewegung des Einführanschlusses (202) in Bezug auf den Aufnahmeträger (204) zu verriegeln, sobald der erste Stift (210) an dem Anschlag (216) anliegt und der zweite Stift (212) in die Aussparung (220) eingeführt ist.
  15. Kopplungssystem nach Anspruch 14, wobei die Verriegelungsvorrichtung (250) einen federbelasteten Haltezahn (252) am Einführanschluss (202) und eine passende Ratschenkante (256) am Aufnahmeträger (204) umfasst.
  16. Verfahren zum Koppeln eines Stuhlteils (106) eines Stuhls (100) mit einer Stuhlsitzträgerstruktur (108) des Stuhls (100), wobei der Stuhl (100) mit dem Kopplungssystem (200) nach einem der vorhergehenden Ansprüche versehen ist, wobei das Verfahren umfasst:
    Anordnen des Stuhlteils (106) in Bezug auf die Stuhlsitzträgerstruktur (108), so dass der erste Stift (210) in die Stifteinführöffnung (218) eingeführt wird,
    - Bewegen (300) des Stuhlteils (106) in Bezug auf die Stuhlsitzträgerstruktur (108), bis der erste Stift (210) an dem Anschlag (216) anliegt und der zweite Stift (212) in die Stifteinführöffnung (218) eingeführt wird, und
    - Schwenken (302) des Stuhlteils (106) um den ersten Stift (210), sodass der zweite Stift (212) in die Aussparung (220) eingeführt wird.
  17. Stuhl, umfassend
    eine Stuhlbasisanordnung (102),
    einen Stuhlsitz (104),
    eine Stuhlsitzträgerstruktur (108), die den Stuhlsitz (104) an die Stuhlbasisanordnung (102) koppelt,
    eine Rückenlehne (106) und/oder eine Armlehne (306, 506), die mit einem Verbindungselement (120, 320) versehen ist, und
    ein Kopplungssystem (200) nach einem der Ansprüche 1-15,
    wobei der Aufnahmeträger (204) des Kopplungssystems (200) an dem Verbindungselement (120) und/oder der Stuhlsitzträgerstruktur (108) vorgesehen ist und der Einführanschluss (202) des Kopplungssystems (200) an dem anderen zwischen dem Verbindungselement (120) und der Stuhlsitzträgerstruktur (108) vorgesehen ist.
EP22211584.2A 2022-12-06 2022-12-06 Kopplungssystem für stuhlteile Active EP4382001B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP22211584.2A EP4382001B1 (de) 2022-12-06 2022-12-06 Kopplungssystem für stuhlteile
PCT/EP2023/082486 WO2024120814A1 (en) 2022-12-06 2023-11-21 Coupling system for chair parts
CN202380080558.2A CN120265185A (zh) 2022-12-06 2023-11-21 用于椅子部件的联接系统
MX2025005929A MX2025005929A (es) 2022-12-06 2025-05-21 Sistema de acoplamiento para partes de silla.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22211584.2A EP4382001B1 (de) 2022-12-06 2022-12-06 Kopplungssystem für stuhlteile

Publications (3)

Publication Number Publication Date
EP4382001A1 EP4382001A1 (de) 2024-06-12
EP4382001B1 true EP4382001B1 (de) 2025-12-03
EP4382001C0 EP4382001C0 (de) 2025-12-03

Family

ID=84421154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22211584.2A Active EP4382001B1 (de) 2022-12-06 2022-12-06 Kopplungssystem für stuhlteile

Country Status (4)

Country Link
EP (1) EP4382001B1 (de)
CN (1) CN120265185A (de)
MX (1) MX2025005929A (de)
WO (1) WO2024120814A1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20315435U1 (de) * 2003-10-08 2003-12-04 Tsai, Sung-Tsun, Tai-Ping Arbeitsstuhl zur Doppelverwendung
US20060103226A1 (en) * 2004-09-17 2006-05-18 Wong George T Medical table shoulder chair
ITVE20130034A1 (it) * 2013-07-03 2015-01-04 Imarc Spa Dispositivo per il montaggio rapido di uno schienale su di un meccanismo per sedie da ufficio

Also Published As

Publication number Publication date
CN120265185A (zh) 2025-07-04
WO2024120814A1 (en) 2024-06-13
EP4382001A1 (de) 2024-06-12
MX2025005929A (es) 2025-07-01
EP4382001C0 (de) 2025-12-03

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