EP2457467B1 - Stuhlstruktur und Verfahren zu dessen Montage - Google Patents

Stuhlstruktur und Verfahren zu dessen Montage Download PDF

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Publication number
EP2457467B1
EP2457467B1 EP10192708.5A EP10192708A EP2457467B1 EP 2457467 B1 EP2457467 B1 EP 2457467B1 EP 10192708 A EP10192708 A EP 10192708A EP 2457467 B1 EP2457467 B1 EP 2457467B1
Authority
EP
European Patent Office
Prior art keywords
coupling element
chair structure
seat frame
support base
structure according
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
EP10192708.5A
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English (en)
French (fr)
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EP2457467A1 (de
Inventor
Peter R. Tuckey
Jonathan K. Mountz
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.)
Nuna International BV
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Nuna International BV
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Application filed by Nuna International BV filed Critical Nuna International BV
Priority to EP10192708.5A priority Critical patent/EP2457467B1/de
Priority to JP2011256139A priority patent/JP5401529B2/ja
Priority to CN201110380801.1A priority patent/CN102525161B/zh
Priority to TW100143391A priority patent/TWI461168B/zh
Publication of EP2457467A1 publication Critical patent/EP2457467A1/de
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Publication of EP2457467B1 publication Critical patent/EP2457467B1/de
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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
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/18—Chairs or stools with rotatable seat
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/02—Dismountable chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/002—Chair or stool bases

Definitions

  • the present invention relates to chair structures and methods of assembling chair structures.
  • a conventional chair structure usually includes a seat portion that is assembled on a support structure.
  • certain chair structures may also include a pivoting mechanism that allows rotation of the seating portion relative to the support structure, such that a user can push the seat portion in rotation while remaining seated on the seat portion.
  • the pivoting mechanism usually employed in the convention chair does not permit disassembly of the chair structure. As a result, when the chair is not used, the chair cannot be stored in a compact form.
  • the present application describes a system and method for assembling the chair structure.
  • the chair structure comprises a seat frame having a first coupling element, a support base, and a pivot link assembly mounted on the support base.
  • the pivot link assembly includes a pivot axle, and a second coupling element pivotally mounted around the pivot axle, wherein the second coupling element includes a latch operable to lock the first coupling element with the second coupling element when the seat frame is assembled with the support base, and unlock the first coupling element from the second coupling element for allowing separation of the seat frame from the support base.
  • the present application also describes a method for assembling the chair structure.
  • the method comprises providing a seat frame having a first coupling element having a hole, providing a support base having a pivot axle and a second coupling element pivotally mounted around the pivot axle, wherein the second coupling element includes a latch thereon, and assembling the seat frame with the support base by sliding the first coupling element over the second coupling element until the latch engages through the hole for locking the first coupling element with the second coupling element.
  • At least one advantage of the chair structure and method described herein is the ability of the seat frame to assemble with and separate from the support base in a convenient manner. Storage of the chair structure can be thereby facilitated.
  • FIG. 1 is an exploded view illustrating a seat frame and support base of a chair structure according to one embodiment of the present invention
  • FIG. 2 is a perspective view of a chair structure according to one embodiment of the present invention.
  • FIG. 3 is a schematic cross-sectional view illustrating a pivot link assembly implemented in a chair structure according to an embodiment of the present invention
  • FIG. 4 is an exploded view of the pivot link assembly shown in FIG. 3 ;
  • FIG. 5 is a perspective of the pivot link assembly shown in FIG. 4
  • FIG. 6 is a schematic enlarged view of the support base shown in FIG. 1 ;
  • FIG. 7 is a schematic view illustrating an operation of the chair structure of FIG. 1 .
  • the present application describes a chair structure and a method for assembling the chair structure.
  • Examples of use of the chair structure described herein may include, without limitation, a chair for seating a young infant or baby.
  • FIGs. 1 and 2 are respectively exploded and perspective views illustrating one embodiment of a chair structure 100.
  • the chair structure 100 comprises a support base 102, a seat frame 104, and a pivot link assembly 106 mounted on the support base 102.
  • the support base 102 may include a plurality of resting beams 108 that extend radial from a joint portion 110 for providing stable support of the chair structure 100 on a floor.
  • the joint portion 110 of the support base 102 has an inner cavity 112 in which the pivot link assembly 106 is fixedly mounted.
  • the seat frame 104 may include a tubular structure 114 having a bracket 115 and a first coupling element 117 affixed on the bracket 115.
  • the first coupling element 117 may be formed as an enclosing cup having a hollow inner volume in which the pivot link assembly 106 can be received when the seat frame 104 is assembled on the support base 102.
  • a side of the first coupling element 117 can include a slot 119 that is able to engage with a second coupling element 124 (e.g., shown in FIG. 3 ) provided on the pivot link assembly 106 for enabling rotation of the seat frame 104 relative to the support base 102 about a rotation axis Y defined by the pivot link assembly 106.
  • FIGs. 3-5 are respectively cross-sectional, exploded and perspective views illustrating the construction of the pivot link assembly 106 and how it assembles with the support base 102 and first coupling element 117.
  • the first coupling element 117 may include an outer enclosing cup 117A in which is mounted an inner cup 117B having a hollow inner volume.
  • the pivot link assembly 106 includes a pivot axle 122 that defines the rotation axis Y, and a second coupling element 124 pivotally mounted around the pivot axle 122.
  • the pivot axle 122 has a first end 122A affixed in the inner cavity 112 of the support base 102.
  • the inner cavity 112 is at least partially delimited by a bottom surface 112A and sidewall 112B.
  • a hole 123 is formed through the bottom surface 112A and is downwardly closed by an end cap 125.
  • the first end 122A of the pivot axle 122 having a threaded hole 126 is assembled through the hole 123 and fixedly secured with the end cap 125 via a screw 128 that engages through the end cap 125 with the threaded hole 126.
  • the second coupling element 124 includes a sleeve 130, a cover 132 and an anti-rotation lock 134.
  • the sleeve 130 has a hollow, generally elongated shape that has an inner bore 136 through which the pivot axle 122 is pivotally mounted via bearings 137A and 137B.
  • the bearing 137A may be mounted adjacent to a top end 130A of the sleeve 130 and tightly fitted around a second end 122B of the pivot axle 122 opposite its first end 122A.
  • the bearing 137B is tightly mounted around the pivot axle 122 in abutment against a shoulder portion 122C of the pivot axle 122, at an intermediate position between the first end 122A and second end 122B of the pivot axle 122.
  • the inner bore 136 may be downwardly closed by a seal 138, which is fastened via a collar 139 against the bearing 137B at a side opposite the shoulder portion 122C.
  • the seal 138 can prevent dust contamination through the lower end of the inner bore 136.
  • the top end 130A of the sleeve 130 is closed with the cover 132 fixedly secured via screws 135.
  • a side 130B of the sleeve 130 forms a recessed, elongated pocket 140 through which the anti-rotation lock 134 is assembled in sliding relationship along the direction of the rotation axis Y.
  • the anti-rotation lock 134 may be formed as an elongated member slidably mounted through the pocket 140.
  • a first end 134A of the anti-rotation lock 134 includes two restricting flanges 142 (better shown in FIG. 4 ) that are spaced apart from each other and delimit a gap 144 there between.
  • a second end 134B of the anti-rotation lock 134 opposite its first end 134A includes a catch 146 that is able to detachably fasten with a rib 147 protruding inward from an inner sidewall of the sleeve 130 (better shown in FIG. 3 ).
  • an intermediate portion of the anti-rotation lock 134 between the first end 134A and the second end 134B includes a handle 148 that extends radial from the direction of the rotation axis Y for engaging through the slot 119 of the first coupling element 117 (shown in FIG. 1 ). By pulling the handle 148 downward or upward, the anti-rotation lock 134 can slide vertically to either a first position or second position higher than the first position.
  • the restricting flanges 142 of the anti-rotation lock 134 can be placed adjacent to two lateral sides of a protuberance 162 formed in the inner cavity 112 (better shown in FIG. 6 ) for blocking rotation of the seat frame 104 about the pivot axle 122.
  • the restricting flanges 142 are positioned in a gap above the protuberance 162 such that rotation of the seat frame 104 about the pivot axle 122 is allowed.
  • the second coupling element 124 also includes a latch 150 that is provided on an outer side of the second coupling element 124.
  • the latch 150 may include a tab portion 152 extending downward from the cover 132, and a flange 154 protruding outward from the tab portion 152 and extending radial from the direction of the rotation axis Y.
  • the flange 154 can engage through or disengage from a hole 156 provided through the first coupling element 117 (better shown in FIG. 7 ).
  • the flange 154 can abut against a rim portion of the hole 156 for locking the first coupling element 117 with the second coupling element 124.
  • a lower portion 130C of the sleeve 130 opposite the top end 130A includes two opposite abuttal flanges 158 (only one abuttal flange 158 is visible on FIG. 5 ) that are spaced-apart from each other and laid in different radial directions.
  • abuttal flanges 158 When the seat frame 104 assembled on the support base 102 is rotated, either of the two abuttal flanges 158 can come in abutment against a stop element provided in the inner cavity 112 (better shown in FIG. 6 ) so as to delimit a maximum angle of rotation permitted for the seat frame 104.
  • FIG. 6 is a schematic enlarged view illustrating the inner cavity 112 of the support base 102.
  • the sidewall 112B surrounding the inner cavity 112 may have a generally cylindrical contour.
  • the protuberance 162 against which the anti-rotation lock 134 abuts for blocking rotation of the seat frame 104 protrudes upward from the bottom surface 112A of the inner cavity 112.
  • a cushion pad 164 is also fixed on the bottom surface 112A at a position diametrically opposite the protuberance 162.
  • the cushion pad 164 is placed in an area located between the two abuttal flanges 158.
  • the limits of the angular rotation permitted for the seat frame 104 are reached when either of the two abuttal flanges 158 comes in abutment against the cushion pad 164.
  • the cushion pad 164 may be made of a flexible material adapted to cushion collision of the abuttal flanges 158 against the cushion pad 164 for stopping rotation of the seat frame 104.
  • a variant embodiment can also configure the cushion pad 164 as a spring element (e.g., the cushion pad 164 may be made of a resilient material) that is loaded and provides a resilient force when it is pressed by the abuttal flange 158.
  • the cushion pad 164 can deform and apply a counteracting force that causes the seat frame 104 to rotate in a reverse direction.
  • the seat frame 104 can then rotate reversely until the opposite abuttal flange 158 comes in contact with an opposite second side of the cushion pad 164, which applies again a counteracting force to rotate the seat frame 104 toward the first side of the cushion pad 164. Accordingly, the seat frame 104 can bounce against the cushion pad 164 to perform reciprocated rotational movements, thereby providing an entertaining environment to the seated child.
  • the seat frame 104 can be assembled on the support base 102 by sliding the first coupling element 117 over the second coupling element 124 of the pivot link assembly 106. As shown in FIG. 7 , the connection between the first coupling element 117 and the second coupling element 124 is then locked when the latch 150 engages through the hole 156 of the first coupling element 117. Moreover, the first coupling element 117 and the second coupling element 124 are also coupled with each other respectively via the engagement of the handle 148 through the slot 119 of the first coupling element 117, and the engagement between the slot 119 of the first coupling element 117 and outline protrusions of the elongated pocket 140.
  • the anti-rotation lock 134 can be raised until the catch 146 of the anti-rotation lock 134 engages and grips the rib 147 of the sleeve 130 by resilient deflection.
  • the anti-rotation lock 134 can thereby be securely maintained at a higher position (i.e., the second position previously mentioned and shown with solid lines in FIG. 7 ) where the restricting flanges 142 are positioned in a gap above the protuberance 162.
  • the seat frame 104 can then be rotated relative to the support base 102, which results in a unitary rotating movement of the first and second coupling elements 117 and 124 locked with each other around the pivot axle 122.
  • the rotation movement of the seat frame 104 relative to the support base 102 can be transmitted from the first coupling element 117 to the second coupling element 124 through contact between the handle 148 and an edge of the slot 119 of the first coupling element 117.
  • the seat frame 104 first must be oriented to a position where the handle 148 is in alignment with the protuberance 162.
  • the catch 146 can disengage from the rib 147, and the anti-rotation lock 134 can then slide downward to a lower position (i.e., the first position previously mentioned and shown with phantom lines in FIG. 7 ) where the protuberance 162 is lodged in the gap 144 between the two restricting flanges 142.
  • the restricting flanges 142 are placed adjacently against two opposite lateral sides of the protuberance 162.
  • any rotation of the second coupling element 124 (and the first coupling element 117 and seat frame 104 locked therewith) about the rotation axis Y can be blocked owing to abutment between the protuberance 162 and of either of the restricting flanges 142.
  • the user can disassemble the chair structure 100 by pushing the latch 150, in particular the protruding flange 154, to cause inward deflection of the tab portion 152.
  • the flange 154 can disengage from the hole 156, and the latch 150 thereby unlocks the connection between the first and second coupling elements 117 and 124.
  • the seat frame 104 and the first coupling element 117 fixed thereon can then be pulled upward away from the support base 102 and the pivot link assembly 106.
  • the seat frame 104 can then be stored separately from the support base 102.
  • At least one advantage of the chair structure described herein is the ability of the seat frame to assemble on and separate from the support base in a convenient manner. Such feature may be particularly advantageous when the seat frame can also folded into a compact form, allowing convenient storage of the chair structure in a reduced space. In addition, when the seat frame is assembled with the support base, rotation of the seat frame can also be selectively enabled or blocked for providing safer use of the chair structure.

Claims (14)

  1. Stuhlstruktur zur Aufnahme eines Kleinkinds, einen Sitzrahmen (104) mit einem ersten Verbindungselement (117) und eine Stützbasis (102) umfassend, die eine darauf befestigte Schwenkachse (122) und ein zweites Verbindungselement (124) umfasst, das schwenkbeweglich mit der Schwenkachse (122) angebracht ist, dadurch gekennzeichnet, dass das zweite Verbindungselement (124) eine Raste (150) umfasst, die so wirkt, dass das erste Verbindungselement (117) mit dem zweiten Verbindungselelement (124) verrastet, um den Sitzrahmen (104) mit der Stützbasis (102) zu verbinden, und das erste Verbindungselement (117) vom zweiten Verbindungselement (124) gelöst wird, so dass der Sitzrahmen (104) und das erste Verbindungselement (117) von der Stützbasis (102) und dem zweiten Verbindungselement (124) entfernt werden können.
  2. Stuhlstruktur nach Anspruch 1, wobei das erste Verbindungselement (117) eine Öffnung (156) umfasst, durch welche die Raste (150) in Eingriff gebracht wird, um das erste Verbindungselement (117) mit dem zweiten Verbindungselement (124) zu verrasten.
  3. Stuhlstruktur nach Anspruch 2, wobei die Raste (150) einen nachgiebigen Laschenabschnitt (152) und einen Flansch (1154) umfasst, der vom Laschenabschnitt (152) vorsteht, der durch die Öffnung (156) des ersten Verbindungselements (117) eingreift, wenn die Raste (150) das erste Verbindungselement mit dem zweiten Verbindungselement (124) verrastet.
  4. Stuhlstruktur nach Anspruch 3, wobei der Laschenabschnitt (152) in einer radialen Richtung in Bezug auf die Schwenkachse (122) ablenkbar ist, um die Raste (150) entweder in oder außer Eingriff zu bringen.
  5. Stuhlstruktur nach Anspruch 1, wobei das zweite Verbindungselement (124) darüber hinaus eine Verdrehsicherung (134) umfasst, die sich in einer zur Schwenkachse (122) im Wesentlichen parallelen Richtung bewegen kann, um eine Drehung des Sitzrahmens (104) um die Schwenkachse (122) entweder zu blockieren oder zuzulassen, wenn der Sitzrahmen (104) mit der Stützbasis (102) zusammengesetzt ist.
  6. Stuhlstruktur nach Anspruch 5, wobei das zweite Verbindungselement (124) eine Hülse (130) mit einer Tasche (140) umfasst, durch welche die Verdrehsicherung (134) in gleitendem Verhältnis eingesetzt ist.
  7. Stuhlstruktur nach Anspruch 5, wobei die Verdrehsicherung (134) einen Griff (148) umfasst, der radial durch einen Schlitz (119) des ersten Verbindungselements (117) vorsteht, wenn der Sitzrahmen (104) mit der Stützbasis (102) zusammengesetzt ist.
  8. Stuhlstruktur nach Anspruch 7, wobei eine Drehbewegung des Sitzrahmens (104) in Bezug auf die Stützbasis (102) durch einen Kontakt zwischen dem Griff (148) und einem Rand der Schlitzes (119) des ersten Verbindungselements (117) vom ersten Verbindungselement (117) auf das zweite Verbindungselement (124) übertragen wird.
  9. Stuhlstruktur nach Anspruch 5, wobei ein erster Endabschnitt (134A) der Verdrehsicherung (134) Einschränkungsflansche (142) umfasst, wobei die Einschränkungsflansche (142) angrenzend an entgegengesetzte Seiten eines Vorsprungs (162) an der Stützbasis (102) angeordnet sind, wenn die Verdrehsicherung (134) zur Stützbasis (102) hin in eine erste Position bewegt wird, um eine Drehung des Sitzrahmens (104) zu blockieren.
  10. Stuhlstruktur nach Anspruch 5, wobei ein zweiter Endabschnitt (134B) der Verdrehsicherung (134) eine Klinke (146) umfasst, die lösbar mit einem Abschnitt des zweiten Verbindungselements (124) verklinkt, wenn die Verdrehsicherung (134) von der Stützbasis (102) weg in eine zweite Position bewegt wird, um eine Drehung des Sitzrahmens (104) zuzulassen.
  11. Stuhlstruktur nach Anspruch 1, wobei das zweite Verbindungselement (124) über mindestens ein Lager (137A, 137B) schwenkbeweglich um die Schwenkachse (122) angebracht ist.
  12. Stuhlstruktur nach Anspruch 1, wobei die Stützbasis (102) eine Dämpfungsauflage (164) umfasst, an welcher am zweiten Verbindungselement (124) vorgesehene Anschlagflansche (158) anstoßen, um eine Winkelverdrehung des Sitzrahmens (104) einzuschränken.
  13. Stuhlstruktur nach Anspruch 1, wobei das erste Verbindungselement (117) einen inneren Hohlraum besitzt, in dem das zweite Verbindungselement (124) aufgenommen ist, wenn der Sitzrahmen (104) mit der Stützbasis (102) zusammengesetzt ist.
  14. Stuhlstruktur nach jedem vorhergehenden Anspruch, wobei die Raste (150) von außerhalb der Stuhlstruktur her zugänglich ist.
EP10192708.5A 2010-11-26 2010-11-26 Stuhlstruktur und Verfahren zu dessen Montage Active EP2457467B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP10192708.5A EP2457467B1 (de) 2010-11-26 2010-11-26 Stuhlstruktur und Verfahren zu dessen Montage
JP2011256139A JP5401529B2 (ja) 2010-11-26 2011-11-24 椅子構造
CN201110380801.1A CN102525161B (zh) 2010-11-26 2011-11-25 座椅结构及其组接方法
TW100143391A TWI461168B (zh) 2010-11-26 2011-11-25 座椅結構及其組接和拆卸方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10192708.5A EP2457467B1 (de) 2010-11-26 2010-11-26 Stuhlstruktur und Verfahren zu dessen Montage

Publications (2)

Publication Number Publication Date
EP2457467A1 EP2457467A1 (de) 2012-05-30
EP2457467B1 true EP2457467B1 (de) 2013-07-24

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EP10192708.5A Active EP2457467B1 (de) 2010-11-26 2010-11-26 Stuhlstruktur und Verfahren zu dessen Montage

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EP (1) EP2457467B1 (de)
JP (1) JP5401529B2 (de)
CN (1) CN102525161B (de)
TW (1) TWI461168B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201400056A (zh) * 2012-06-29 2014-01-01 guo-xiong Lin 單軸式的椅腳及使用該椅腳的接待椅
CN105559434B (zh) * 2014-10-15 2019-07-09 明门香港股份有限公司 幼儿承载装置
EP3039994B1 (de) * 2014-12-30 2017-08-02 Wonderland Switzerland AG Kindbewegungsvorrichtung mit einer faltbaren rahmenstruktur

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USD611257S1 (en) * 2008-12-02 2010-03-09 Nuna International B.V. Swing chair

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US4236752A (en) * 1979-05-04 1980-12-02 Hoover Universal, Inc. Rocker swivel assembly for chairs
JPS5639409Y2 (de) * 1979-05-12 1981-09-14
JPS566256U (de) * 1979-06-27 1981-01-20
JPS5957157U (ja) * 1982-10-07 1984-04-14 谷口　禎男 正座用椅子
US4709894A (en) * 1986-04-10 1987-12-01 Steelcase Inc. Slip connector for weight actuated height adjustors
JPH0378693U (de) * 1989-12-04 1991-08-09
CA2136967C (en) * 1992-06-15 2001-04-03 William E. Stumpf Office chair
ATE223170T1 (de) * 1996-10-14 2002-09-15 Vitra Patente Ag Stuhlmechanik
US6116183A (en) * 1998-10-01 2000-09-12 Attwood Corporation Positively locking boat seat and method for making the same
TWM244003U (en) * 2003-08-26 2004-09-21 Jeng-Lung Li Chair easily to assemble/disassemble
JP2007236874A (ja) * 2006-03-03 2007-09-20 Sakae Tashiro 楽器演奏用椅子
ES2288139B1 (es) * 2007-03-22 2008-09-16 Figueras International Seating S.A. Pie de anclaje fijo para butacas frente a mesas.
PL2144538T3 (pl) * 2007-09-17 2011-05-31 Nuna Int B V Fotelik bujany

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Publication number Priority date Publication date Assignee Title
USD611257S1 (en) * 2008-12-02 2010-03-09 Nuna International B.V. Swing chair

Also Published As

Publication number Publication date
EP2457467A1 (de) 2012-05-30
JP2012110720A (ja) 2012-06-14
CN102525161B (zh) 2015-10-07
JP5401529B2 (ja) 2014-01-29
CN102525161A (zh) 2012-07-04
TW201221090A (en) 2012-06-01
TWI461168B (zh) 2014-11-21

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