EP1654959A1 - Chaise - Google Patents
Chaise Download PDFInfo
- Publication number
- EP1654959A1 EP1654959A1 EP05022492A EP05022492A EP1654959A1 EP 1654959 A1 EP1654959 A1 EP 1654959A1 EP 05022492 A EP05022492 A EP 05022492A EP 05022492 A EP05022492 A EP 05022492A EP 1654959 A1 EP1654959 A1 EP 1654959A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- chair
- seat
- chair according
- abutment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
- A47C1/03238—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
Definitions
- the invention relates to a chair, in particular an office swivel chair with a stand tube having chair base, with a chair base held on the seat support, a pivotally connected thereto seat and a backrest holding, pivotally connected to the seat support back support, wherein the seat on a synchronous mechanism having at least one spring and coupling elements is coupled with the backrest for movement.
- the support is formed because of the complex mechanism for the synchronous movement as a comparatively large, eye-catching box, which significantly determines the appearance of the chairs and, among other things, the handling adversely affected.
- chairs with such support are relatively heavy.
- the invention provides, in particular, that the synchronizing mechanism is arranged substantially inside the standpipe.
- the essential parts of the synchronous mechanism in particular their "active part" not as before at the support above the standpipe, but housed within this. Due to the arrangement of the synchronous mechanism within the standpipe a reduction of the synchronous mechanism is achieved in total and also a weight reduction of the chair.
- the synchronous mechanism in total also includes the pivot points on the seat and back and the active part includes, among other things, the synchronous spring as an energy storage, locking and adjustment.
- a preferred embodiment provides that the coupling elements a sleeve-shaped, engaging in the upper end of the standpipe end of the seat support, an acted upon by the back support, preferably the sleeve-shaped end of the seat support protruding plunger and a seat and the back support spaced from the pivotal mounting between the Seat support and the back support have articulated connecting element and that the synchronous suspension through the plunger and through the lower free, in the standpipe engaging end of the seat support is acted upon.
- the synchronous spring is biased under load of the seat on the seat support, thereby correspondingly changes the adjustment for moving the backrest, since the back support rests on the also acted upon by the prestressed synchronous spring plunger.
- the spring force of the synchronous spring acts either directly on the back support and indirectly on the seat or vice versa.
- Either the plunger is actuated by the seat or preferably by the back support, whereby it is possible by the latter arrangement to transmit more force components directly to the back.
- the standpipe a Rohroberteil with an adjustable spring and a coaxially arranged pipe base having a height adjustment, that the two tube parts are rotatable relative to each other connected to each other and that the rotatability of the Rohroberteils relative to the lower tube part by means of a locking device for height adjustment can be blocked and released to adjust the spring preload.
- the locking device is used to switch between a setting in which by a rotation of the Rohroberteils relative to the rest of the standpipe, an adjustment of the spring preload and a setting in which both pipe parts are coupled and by adjusting relative to the foot height adjustment of the chair.
- the synchronous suspension has at least one spring element supported on a preferably adjustable abutment and if the spring element is preferably formed by a helical spring, optionally by at least one leg spring, plastic spring or gas spring.
- the acted upon by the coupling elements spring element can be arranged in the standpipe that is adjusted by an adjustment of the abutment in the axial direction of the standpipe, the bias of the spring element and thus its restoring force or the hardness of the spring action on the seat and the backrest.
- the adjustment of the abutment can also be used to preset the spring for a specific weight of the user of the chair or for a weight-dependent adjustment of the spring.
- a coil spring can be accommodated in a space-saving manner in the standpipe or the rough shell part, in particular in the case of a round cross-section of the standpipe. It is also advantageous that the spring force and the weight of the person act in the same direction.
- the Rohroberteil rotated relative to the lower tube part.
- the abutment is rotatably connected to the tube shell and has a threaded bore into which a rotatably connected to the tube base threaded bolt engages. By turning the threaded connection, the abutment is adjusted in height and thus the spring preload.
- the locking device is located for the adjustment of the spring bias in the release position, so that the rough shell part is rotatable relative to the lower tube part. Between the mutually facing front ends of the Rohroberteil and the lower tube part may be provided to reduce friction in the rotation relative to each other a bearing element as a thrust bearing.
- a rotation of the lower tube part is provided together with the Rohroberteil opposite the base.
- the chair has a base which projects at least partially into the tube base and has a threaded rod at its upper end region.
- a rotatably connected to the lower tube threaded nut for height adjustment of the chair is screwed.
- the locking device is located for the height adjustment in blocking position, that is, the Rohroberteil is rotationally coupled to the tube bottom.
- a gas spring takes over a suspension function and can also be adjusted to adjust the height of the seat in its active length.
- the height adjustment of the seat can be done in a known manner by a manual adjustment, for example by means of an operating lever.
- the chair has a base which is connected to a tube lower part and a tube disposed in the lower part, formed by a gas spring spring element, that is connected to the seat carrier Rohroberteil is provided with a spring therein, the underside of a support connected to a piston rod of the gas spring abutment is supported and on the upper side of the backrest is acted upon in particular by a plunger and that the tubular body part telescopically engages at least partially in the inner cavity of the lower tube part.
- This embodiment also allows a compact design with synchronous mechanism housed substantially within the standpipe.
- the piston rod of the gas spring or the like spring element is formed at least at its upper end portion as a threaded bolt or connected to a threaded bolt and if the abutment for the spring has a screwed onto the threaded bolt threaded hole.
- An adjustment of the spring preload is effected by rotation of the Rohroberteils together with the abutment for the spring relative to the threaded bolt at the upper free end of the lower spring element of the lower tube part.
- a reverse arrangement of the gas spring with downwardly pointing piston rod which is mounted with its lower free end on the base. The abutment is based on the upward-facing gas cylinder of the gas spring.
- An adjustment of the spring bias of the synchronous spring can be done with downwardly facing piston rod, but also in the previously described, upwardly facing piston rod not only by rotation of the abutment for the synchronous spring against the gas spring, but also by the point of attack the synchronous spring is adjusted on the guided inside the Rohroberteils, acted upon by the back support Stö-ßel.
- the plunger is provided for this purpose with an external thread on which a loaded by the synchronous spring ram plate is screwed.
- the plunger can be rotated to adjust the spring preload via a, for example, with a crank, a ratchet or a handle driven worm gear, so that the plunger plate moves vertically on the thread of the bolt and so more or less compresses the synchronous spring formed by a coil spring ,
- the plunger has a bottom side of the top of the Rohroberteils acting on the bottom stop.
- the synchronous spring in the rough-bodied part is prestressed to different degrees in persons of different weights, whereby a mobility of the synchronous mechanism or the backrest, which is automatically adapted to the weight of the user, is achieved.
- the above-described type of bias adjustment of the synchronous spring in the region of the upper plunger may also be provided in embodiments of the chair without gas spring.
- the abutment for the spring which is preferably designed as a helical spring, has a spring plate which is offset downwards relative to its screw connection with the threaded bolt.
- the arrangement of the synchronous suspension and the height adjustment can be made one above the other or at least partially in one another.
- the spring By loading the seat carrier, the spring is biased more or less depending on the weight of the user.
- the back support actuates the plunger in the standpipe. This compresses the spring, which balances the body weight of the user.
- the chair of the invention supports the active rockers or can be locked in various positions as desired.
- the chair can be designed so that the adjustment of the height as well as the adjustment of the spring preload can be activated by a switching element.
- the height is adjusted by turning the chair in relation to the base.
- the rough-body part including the spring plate is turned on the threaded bolt and thus adjusted vertically.
- a lock is switched.
- the rotating movement of the standpipe moves a threaded nut up and down a threaded rod, causing the height to shift.
- a conventional gas spring can be used.
- the synchronous spring is now above the gas spring or includes them. The adjustment of the spring preload via a rotation of the chair or via a manual actuator in the form of a crank, a ratchet or a handle.
- the backrest 5 carries a backrest 7. For a synchronous movement of the seat 6 and the backrest 7, a synchronizing mechanism is provided. This serves to coordinate the movement of the seat 6 and the backrest 7 and cushion.
- the synchronous mechanism on a spring 10 and coupling elements which are arranged within the standpipe 3.
- the coupling elements are essentially by a lower, sleeve-shaped, projecting into the standpipe 3 end 11 of the seat support 4, acted upon by the back support 5, preferably the sleeve-shaped end of the seat support 4 by projecting plunger 12 and a recognizable in Figures 1 and 2, the Seat 6 and the back support 5 spaced from the pivot bearing 8 between the seat support 4 and the back support 5 hingedly connecting connecting element 31 is formed.
- the suspension 10 for synchronous movement coupling is acted upon by the plunger 12 and by the lower free, engaging in the standpipe 3 end 11 of the seat support 4.
- the connecting element 31 the seat 6 tilts synchronously with the backrest 7 in the respective direction of inclination.
- the synchronous suspension 10 is arranged with a coil spring 15 as a spring element.
- the coil spring 15 is supported in a coaxial direction to the Rohroberteil 13 adjustable trained spring plate 16 as abutment.
- the spring plate 16 is non-rotatably connected to the rough shell part 13, but connected in a height-adjustable manner, and has a threaded bore 17 into which engages a threaded bolt 18 connected in a rotationally fixed manner to the tube base 14.
- the leadership of the spring plate 16 in the rough shell part 13 is achieved by a groove.
- the rough shell part 13 has a guide track in the adjustment area, which engages in the corresponding groove in the spring plate 16.
- the spring plate 16 can be moved vertically and still remains connected to the Rohroberteil 16.
- the spring plate 16 could also be performed in a slot in the rough shell part 13 through a nose.
- the lower tube part 14 has a base 19, which projects at least partially into the lower tube part 14 and has a threaded rod 20 at its upper end region. On the threaded rod 20, a rotatably connected to the lower tube part 14 threaded nut 21 is screwed. If the tube base 14 is rotated relative to the base 19, the threaded nut 21 also rotates on the threaded rod 20, whereby the total height of the chair 1 is adjusted.
- a locking device 22 is provided.
- the locking device 22 blocks either the rotatability of the two parts of the standpipe 3 against each other Help a switching element 23 ( Figure 5) or the rotatability of the lower tube part 14 relative to the base 19 by means of a rotation lock 24 ( Figure 4). If the switching element 23 in the blocking position and the anti-rotation device 24 in the release position, as shown in FIG. 5, the standpipe 3 with two parts 13, 14 relative to the base 19 can be rotated.
- the rough shell part 13 can be rotated relative to the lower tube part 14 with the base 19.
- the bearing element may also be formed, for example, as a plain bearing or needle roller bearings.
- a locking device 25 is provided which is adjustable between a release position and a locking position.
- the locked position which is shown in Figure 6, the lower sleeve-shaped, projecting into the standpipe 3 end 11 of the seat support 4 is rigidly coupled to the plunger 12 and there is no synchronous inclination between the seat 6 and backrest 7, but only one joint cushioning of these two elements possible.
- the locking device 25 has a nose 26 which can engage in different levels of recesses 27 in the plunger 12, whereby the (fixed) inclination of the backrest 7 relative to the seat 6 in the blocking position of the locking device 25 adjustable is.
- FIG. 7 to 9 An alternative to the embodiment in Figures 1 to 6 embodiment of the chair 1 according to the invention are shown in Figures 7 to 9 in different variants of the adjustability of the chair 1.
- the chair 1 has in this embodiment a base 19a, with a tube bottom 14a and a arranged in the tube lower part 14 a, is connected by a gas spring 32 formed spring element. Furthermore, a connected to the seat support 4 Rohroberteil 13 a is provided with a spring 10 therein.
- the synchronizing spring 10 is supported on the underside on a connected to a piston rod of the gas spring 32 abutment 16a and is acted on the upper side of the backrest 7 via a plunger 12.
- the spring bias of the spring 10 can be adjusted.
- the rough shell part 13a engages telescopically, depending on the functional position to varying degrees partially in the inner cavity of the lower tube part 14a.
- the hat-shaped abutment 16a has a threaded bore 17a, in which engages the piston rod at the upper free end of the gas spring 32.
- the gas spring 32 within the lower tube part 14a engages depending on the height adjustment and deflection of the gas spring 32 partially from below into the inner cavity of the hat-shaped abutment 16a.
- the base 19 has a chassis 28 with five rollers 29 (two of which are hidden), as can be seen in FIGS.
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs Characterized By Structure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004053965A DE102004053965B4 (de) | 2004-11-09 | 2004-11-09 | Stuhl |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1654959A1 true EP1654959A1 (fr) | 2006-05-10 |
EP1654959B1 EP1654959B1 (fr) | 2011-05-04 |
Family
ID=35968023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05022492A Expired - Fee Related EP1654959B1 (fr) | 2004-11-09 | 2005-10-14 | Chaise |
Country Status (3)
Country | Link |
---|---|
US (1) | US7490902B2 (fr) |
EP (1) | EP1654959B1 (fr) |
DE (2) | DE102004053965B4 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2301390A1 (fr) * | 2007-07-07 | 2011-03-30 | König + Neurath AG | Siège, en particulier chaise de bureau |
CN110179287A (zh) * | 2018-02-22 | 2019-08-30 | 佛山市南海德天家具有限公司 | 一种螺杆直推式软硬度调节装置及其座椅、床垫 |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8181920B2 (en) * | 2006-08-07 | 2012-05-22 | E.F. Bavis & Associates, Inc. | Apparatus and methods for an equipment stand for a drive-thru employee station |
CN101430487B (zh) * | 2007-11-09 | 2010-09-29 | 鸿富锦精密工业(深圳)有限公司 | 高度调整装置 |
KR100903215B1 (ko) * | 2008-10-10 | 2009-06-18 | 주식회사 시디즈 | 틸팅 가능 의자 |
US8113586B2 (en) * | 2009-01-23 | 2012-02-14 | Chen Yung-Hua | Apparatus for adjusting the seat back angle |
US8714645B2 (en) * | 2010-01-28 | 2014-05-06 | Sava Cvek | Pivoting mechanism with gross and fine resistance adjustment |
US8714646B2 (en) * | 2010-02-08 | 2014-05-06 | Sava Cvek | Mobile task chair and mobile task chair control mechanism with adjustment capabilities and visual setting indicators |
US8696056B2 (en) * | 2010-02-01 | 2014-04-15 | Steelcase Inc. | Seating unit |
US8182023B2 (en) | 2010-03-16 | 2012-05-22 | Sabic Innovative Plastics Ip B.V. | Plastically deformable spring energy management systems and methods for making and using the same |
US9458905B2 (en) * | 2012-09-20 | 2016-10-04 | Steelcase Inc. | Spring assembly and method |
USD697726S1 (en) | 2012-09-20 | 2014-01-21 | Steelcase Inc. | Chair |
US9839292B2 (en) * | 2014-04-08 | 2017-12-12 | John Hart Miller | Rotating and non-rotating reclining chairs w/tilting mechanisms |
DE102016102557A1 (de) * | 2016-02-15 | 2017-08-17 | Interstuhl Büromöbel GmbH & Co. KG | Sitzmöbel mit einem Rückneigeanschlag |
DE102016102556A1 (de) | 2016-02-15 | 2017-08-17 | Interstuhl Büromöbel GmbH & Co. KG | Rückenlehne für einen Bürostuhl |
US10064492B2 (en) * | 2016-02-29 | 2018-09-04 | Scott Lobel | Removable seat cushion and method |
US11071386B2 (en) | 2016-06-09 | 2021-07-27 | Sava Cvek | Seat pivoting mechanism and chair height locking system |
US10485346B2 (en) * | 2018-01-22 | 2019-11-26 | Knoll, Inc. | Chair tilt mechanism |
CA3091345C (fr) | 2018-02-16 | 2022-10-18 | Barrett Studios, Inc. | Ensemble chaise |
US10820703B2 (en) * | 2018-09-17 | 2020-11-03 | Sedus Stoll Ag | Chair, particularly conference or office chair, and method for manufacturing a chair |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7631908U1 (de) * | 1976-10-13 | 1978-04-13 | Moll, Reiner, 7070 Schwaebisch Gmuend | Lehnstuhl |
DE3724605A1 (de) * | 1987-07-24 | 1989-02-02 | Inaba Seisakusho Ltd | Sitzmoebel |
EP0638265A2 (fr) | 1993-08-14 | 1995-02-15 | Girsberger Holding AG | Chaise de bureau |
WO1995024845A1 (fr) * | 1994-03-17 | 1995-09-21 | Fröscher Gmbh & Co. Kg | Chaise ou siege |
US5462336A (en) * | 1992-03-20 | 1995-10-31 | Desanta; Simon | Office chair having a support member for shiftably supporting a seat |
WO1996029912A1 (fr) * | 1993-12-02 | 1996-10-03 | Fritz Hansen A/S | Chaise de bureau |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1160108A (en) * | 1914-02-02 | 1915-11-09 | Otis Ridgeway Hasty | Adjustable rotary hub for furniture. |
BE488799A (fr) * | 1948-09-21 | |||
FR1287379A (fr) * | 1960-11-28 | 1962-03-16 | Dispositif tournant, réglable en hauteur et basculant suivant le poids de l'utilisateur, pour siège, plus spécialement pour siège de bureau | |
US3053571A (en) * | 1961-02-20 | 1962-09-11 | Seng Co | Chair iron |
US3206153A (en) * | 1963-02-25 | 1965-09-14 | Bjorgensen Designs Ltd | Tilt swivel mechanism for chairs |
US3220687A (en) * | 1963-08-21 | 1965-11-30 | Walter P Baermann | Biased tilt mechanisms, especially useful in swivel chairs and the like |
US3417956A (en) * | 1966-08-02 | 1968-12-24 | Art Metal Knoll Corp | Chair control |
AU1065366A (en) * | 1966-09-06 | 1968-03-07 | Prentice Burke Maurice | Tilt swivel mechanism |
US3455601A (en) * | 1966-11-02 | 1969-07-15 | Finn Lie | Support unit for chair |
US3720396A (en) * | 1971-09-27 | 1973-03-13 | Collier Keyworth Co | Tilt mechanism for chairs or the like |
WO1980001534A1 (fr) * | 1979-01-29 | 1980-08-07 | Kusch Co Sitzmoebel | Chaise |
EP0114600B1 (fr) * | 1983-01-21 | 1986-08-27 | Pierre Schmitz | Chaise, notamment chaise de bureau |
IT8323779V0 (it) * | 1983-12-06 | 1983-12-06 | B & B Italia Spa | Sedia da lavoro con posizione di seduta regolabile e schienale flessibile. |
IT1236439B (it) * | 1989-12-14 | 1993-03-01 | Loris Miotto | Dispositivo meccanico, particolarmente per la movimentazione sincrona di sedile e schienale di una seduta |
DE10007103B4 (de) * | 2000-02-16 | 2004-01-29 | Wolfgang Deisig | Verstellbarer Arbeitsstuhl, insbesondere Bürostuhl |
-
2004
- 2004-11-09 DE DE102004053965A patent/DE102004053965B4/de not_active Expired - Fee Related
-
2005
- 2005-10-14 EP EP05022492A patent/EP1654959B1/fr not_active Expired - Fee Related
- 2005-10-14 DE DE502005011322T patent/DE502005011322D1/de active Active
- 2005-11-07 US US11/268,018 patent/US7490902B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7631908U1 (de) * | 1976-10-13 | 1978-04-13 | Moll, Reiner, 7070 Schwaebisch Gmuend | Lehnstuhl |
DE3724605A1 (de) * | 1987-07-24 | 1989-02-02 | Inaba Seisakusho Ltd | Sitzmoebel |
US5462336A (en) * | 1992-03-20 | 1995-10-31 | Desanta; Simon | Office chair having a support member for shiftably supporting a seat |
EP0638265A2 (fr) | 1993-08-14 | 1995-02-15 | Girsberger Holding AG | Chaise de bureau |
WO1996029912A1 (fr) * | 1993-12-02 | 1996-10-03 | Fritz Hansen A/S | Chaise de bureau |
WO1995024845A1 (fr) * | 1994-03-17 | 1995-09-21 | Fröscher Gmbh & Co. Kg | Chaise ou siege |
DE19509216A1 (de) * | 1994-03-17 | 1995-10-12 | Froescher Gmbh & Co Kg | Stuhl oder Sitzeinrichtung |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2301390A1 (fr) * | 2007-07-07 | 2011-03-30 | König + Neurath AG | Siège, en particulier chaise de bureau |
CN110179287A (zh) * | 2018-02-22 | 2019-08-30 | 佛山市南海德天家具有限公司 | 一种螺杆直推式软硬度调节装置及其座椅、床垫 |
Also Published As
Publication number | Publication date |
---|---|
US20060097558A1 (en) | 2006-05-11 |
EP1654959B1 (fr) | 2011-05-04 |
DE102004053965A1 (de) | 2006-05-11 |
DE102004053965B4 (de) | 2006-10-12 |
DE502005011322D1 (de) | 2011-06-16 |
US7490902B2 (en) | 2009-02-17 |
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