NO160406B - Vippemekanisme, fortrinnsvis for stolsete eller lignende. - Google Patents
Vippemekanisme, fortrinnsvis for stolsete eller lignende. Download PDFInfo
- Publication number
- NO160406B NO160406B NO870301A NO870301A NO160406B NO 160406 B NO160406 B NO 160406B NO 870301 A NO870301 A NO 870301A NO 870301 A NO870301 A NO 870301A NO 160406 B NO160406 B NO 160406B
- Authority
- NO
- Norway
- Prior art keywords
- resilient
- tilting
- support
- relative
- seat
- Prior art date
Links
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000003301 hydrolyzing effect Effects 0.000 claims description 4
- 229940053197 benzodiazepine derivative antiepileptics Drugs 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 150000004966 inorganic peroxy acids Chemical class 0.000 claims description 2
- 150000004967 organic peroxy acids Chemical class 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 125000003310 benzodiazepinyl group Chemical class N1N=C(C=CC2=C1C=CC=C2)* 0.000 claims 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 125000006239 protecting group Chemical group 0.000 description 5
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 4
- 150000004965 peroxy acids Chemical class 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229940049706 benzodiazepine Drugs 0.000 description 3
- 150000001557 benzodiazepines Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 description 2
- XYPISWUKQGWYGX-UHFFFAOYSA-N 2,2,2-trifluoroethaneperoxoic acid Chemical compound OOC(=O)C(F)(F)F XYPISWUKQGWYGX-UHFFFAOYSA-N 0.000 description 1
- GLVYLTSKTCWWJR-UHFFFAOYSA-N 2-carbonoperoxoylbenzoic acid Chemical compound OOC(=O)C1=CC=CC=C1C(O)=O GLVYLTSKTCWWJR-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000001589 carboacyl group Chemical group 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- LTSCUTRDOYXXGO-UHFFFAOYSA-N n-(7-chloro-5-phenyl-3h-1,4-benzodiazepin-2-yl)-n-methylacetamide Chemical compound N=1CC(N(C(C)=O)C)=NC2=CC=C(Cl)C=C2C=1C1=CC=CC=C1 LTSCUTRDOYXXGO-UHFFFAOYSA-N 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- A47C3/02—Rocking chairs
- A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
- A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
- A47C1/026—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of 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
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/02—Rocking chairs
- A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
- A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting 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
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
- A47C7/448—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with resilient blocks
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs Characterized By Structure (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
I forbindelse med en vippemekanisme (1), fortrinnsvis for stolsete eller lignende, som omfatter et stivt element (2) som via et monteringsorgan (3). kan festes til et stolunderstell (4), et til stolsetet tilpasset bæreorgan (6) som er dreibart forbundet i forhold til monteringsorganet (3), fjærende organer (8a, 8b) som er slik anordnet mellom bæreorganet (6) og den stive plate (2) at bæreorganet (6) kan vippes i forhold til den stive plate (2) under på virkning av de fjærende organer (8a, 8b), samt låseorganer (20, 21, 24) for innstilling av bæreorganet (6) for setet i forskjellige vippestillinger, er der i den hensikt å oppnå en kompakt vippemekanisme som gir separat eller individuell stramming av vippestivheten i foroverretning og bakoverretning uten at setevinkelen forandres i forhold til den nøytrale, foreslått at minst et av de fjærende organer (8a, 8b) kan forskyves i forhold til vippeakselen (5) for bæreorganet (6). Hensiktsmessig er der anordnet et første fjærende organ (8a) som samvirker med et første parti av det stive element (2), samt et fjærende organ (8b) som samvirker med et annet parti av det stive element (2), idet hvert av de fjærende organer (8a, 8b) kan forskyves uavhengig av hverandre i forhold til bæreorganets (6) vippeaksel (5) ved hjelp av skyveor-ganer, fortrinnsvis hver sin hendel (10a, 10b).
Description
Fremgangsmåte for fremstilling av benzodiazepinderivater.
Nærværende oppfinnelse vedrorer en ny fremgangsmåte for fremstilling av benzodiazepinderivater med den generelle formel
hvor R^ betyr halogen.
Fremgangsmåten består i at man omsetter en forbindelse med den generelle formel
hvor R^ har foran angitte betydning,
med hydrogenperoksyd eller en organisk eller uorganisk persyre i et under reaksjonsbetingelsene inert organisk opplosningsmiddel og behandler den erholdte forbindélse med den generelle formel
hvor R, har den foran angitte betydning
med et mildt alkalisk hydrolyseringsmiddel.
Oksydasjonen av forbindelser med formel I til forbindelser méd formel II kan gjennomføres med et eller annet egnet oksydasjons-middel, som hydrogenperoksyd eller persyrer. Eksempler på i fremgangsmåten ifolge oppfinnelsen anvendbare persyrer er pereddiksyre, trifluorpereddiksyre, perftalsyre, persvovelsyre og lignende.
Den onskede oksydasjon kan gjennomfores på forskjellig måte. I en utforelsesform tilsettes forbindelsen med formel II et surt medium og deretter tilsettes hydrogenperoksydet. I en annen utforelsesform fremstilles persyren in situ, og forbindelsen som skal oksyderes, tilsettes den erholdte blanding. Persyren fremstilles ved blanding av hydrogenperoksydet med en rettkjedet lavere fettsyre eller et funksjonelt derivat derav, f.eks. eddiksyreanhydrid. Temperaturen er ikke kritisk for dette trinn av fremgangsmåten ifolge oppfinnelsen; oksydasjonen kan gjennomfores så vel ved romtemperatur som også over eller under romtemperatur.
Den i formel I med lavere alkanoyl betegnede beskyttelsesgruppe
.skal være en gruppe som er lett hydrolyserbar og er i stand til å hindre nitrogenatomet og virke som elektrondonator (eller som
protonakseptor) dvs. å gjore dette nitrogenatom uimottagelig mot oksydasjon. Som egnede beskyttelsesgrupper kan anvendes lavere alkanoylgrupper som acetyl, propionyl og lignende, og fortrinnsvis er beskyttelsesgruppen acetyl. Det er imidlertid selvfølgelig at også en annen beskyttelsesgruppe kan anvendes ved fremgangsmåten ifolge oppfinnelsen. Det er ene og alene nodvendig at denne gruppe
1. beskytter nitrogenatomer i 2-stilling under den
.. oksydative behandling for oksydasjonen, og at denne gruppe 2. er lett avhydrolyserbar under vanlige hydrolyser-ingstiltak av forbindelser med formel II.
Hydrolysen av beskyttelsesgruppen av forbindelser med formel II kan bevirkes under benyttelsen av et eller annet egnet hydrolyseringsmiddel. F.eks. kan en forbindelse med formel II behandles med et alkalisk middel, f.eks. natriumhydroksyd, basisk aluminiumoksyd og lignende. Måten på hvilken hydrolysen bevirkes er ikke kritisk, og man kan på tilsvarende måte gjennomfore reaksjonen i et eller annet egnet opplosningsmiddel, ved romtemperatur eller over eller under romtemperatur.
Fremgangsmåten ifolge oppfinnelsen er særlig derfor av betydning fordi den muliggjor fremstillingen av verdifulle benzodiazepiner, i særdeleshet en forbindelse med formel III, som inneholder en 2-metylaminogruppe, og hvor R^ er klor. -Uttrykket "halogen" vedrorer alle fire formene, dvs. fluor, brom, jod og klor. Uttrykket "lavere alkyl" betyr rettkjedede eller forgrenede hydrokarbongrupper som metyl, propyl, isobutyl og lignende, som oppviser inntil 7 karbonatomer.
Det folgende eksempel anskueliggjor fremgangsmåten ifolge oppfinnelsen. Alle temperaturer er angitt i Celsiusgrader.
EKSEMPEL
Man fremstiller pereddiksyre, idet man tilsetter dråpevis 3>35 g eddiksyreanhydrid til en avkjolt suspensjon (isbad) av 0,75 ml 90%'ig hydrogenperoksyd og en dråpe konsentrert svovelsyre i 3 ml metylenklorid. Man rorer 15 minutter ved 0° og lar så oppløsningen stå i 30 minutter ved 25°. Reaksjonsblandingen tilsettes så dråpevis under roring til en iskald opplosning av 3,0 g (0,0092 mol) 7-klor-2-(N-metylacetamido)-5-fenyl-3H-l,<t>+-benzodiazepin i metylenklorid. Den erholdte blanding holdes natten over ved 25°, vaskes med vann og fortynnet vandig ammoni-akk og konsentreres etter torking over natriumsulfat. Man oppnår rått 7-klor-2-(N-metylacetamido)-5-fenyl-3H-l,^-benzodiazepin •+-oksyd. Dette råprodukt bringes på en kolonne, som inneholder 90 g aluminiumoksyd (basisk, aktivitetsgrad I). Man eluerer med etylacetat, inndamper eluatet og oppnår hvite prismer med smeltepunkt 233 - 237°. Etter omkrystallisasjon fra en blanding av metylenklorid og eter oppnår man 7-klor-2-metylamino-5-fenyl-3H-1,^-benzodiazepin V-oksyd i form av krystaller med smeltepunkt 235 - 237°.
Claims (1)
- Fremgangsmåte for fremstilling av benzodiazepinderivater med den generelle formelhvor R^ betyr halogen,karakterisert ved at man omsetter en for- bindelse med den generelle formel hvor R^ har foran angitte betydning, med hydrogenperoksyd eller en organisk eller uorganisk persyre i et under reaksjonsbetingelsene inert organisk opplosningsmiddel og behandler den erholdte forbindelse med den generelle formel hvor R^ har foran angitte betydning, med et mildt alkalisk hydrolyseringsmiddel. Anførte publikasjoner: J. Munch-Petersen og J.Østrup: Organisk Kemisk Syntese, København 1964, s.379.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO870301A NO160406C (no) | 1987-01-23 | 1987-01-23 | Vippemekanisme, fortrinnsvis for stolsete eller lignende. |
| DE883890037T DE3890037T1 (de) | 1987-01-23 | 1988-01-13 | Kippmechanismus, vorzugsweise fuer einen stuhl oder aehnliches |
| JP63501056A JPH01500406A (ja) | 1987-01-23 | 1988-01-13 | 椅子座席等のための傾斜機構 |
| PCT/NO1988/000004 WO1988005276A1 (en) | 1987-01-23 | 1988-01-13 | Tilting mechanism, preferably for a chair seat or similar |
| DE3890037A DE3890037C2 (no) | 1987-01-23 | 1988-01-13 | |
| SE8803299A SE500839C2 (sv) | 1987-01-23 | 1988-01-13 | Vippmekanism, företrädesvis för stolsits eller liknande |
| US07/235,900 US4890886A (en) | 1987-01-23 | 1988-01-31 | Tilting mechanism, preferably for a chair seat or similar article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO870301A NO160406C (no) | 1987-01-23 | 1987-01-23 | Vippemekanisme, fortrinnsvis for stolsete eller lignende. |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| NO870301D0 NO870301D0 (no) | 1987-01-23 |
| NO870301L NO870301L (no) | 1988-07-25 |
| NO160406B true NO160406B (no) | 1989-01-09 |
| NO160406C NO160406C (no) | 1989-04-19 |
Family
ID=19889603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO870301A NO160406C (no) | 1987-01-23 | 1987-01-23 | Vippemekanisme, fortrinnsvis for stolsete eller lignende. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4890886A (no) |
| JP (1) | JPH01500406A (no) |
| DE (2) | DE3890037T1 (no) |
| NO (1) | NO160406C (no) |
| SE (1) | SE500839C2 (no) |
| WO (1) | WO1988005276A1 (no) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997022283A1 (en) * | 1995-12-18 | 1997-06-26 | Peter Opsvik A/S | A device for adjusting the tilting resistance of a chair seat |
Families Citing this family (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5588704A (en) * | 1992-08-13 | 1996-12-31 | Harza; Richard D. | Ergonomic antifatigue seating device and method |
| US5464274A (en) * | 1994-01-13 | 1995-11-07 | Westinghouse Electric Corporation | Chair seat tilt adjustment and locking mechanism |
| US6059363A (en) * | 1997-04-30 | 2000-05-09 | Haworth, Inc. | Chairback with side torsional movement |
| US5951109A (en) * | 1997-04-30 | 1999-09-14 | Haworth, Inc. | Chairback with side torsional movement |
| US6176548B1 (en) * | 1998-10-23 | 2001-01-23 | Haworth, Inc. | Tilt mechanism for chair having adjustable spring characteristics |
| US6209958B1 (en) | 1998-10-23 | 2001-04-03 | Haworth, Inc. | Universal tilt mechanism for a chair |
| EP1197168B1 (de) | 2000-10-12 | 2007-01-24 | Vitra Patente AG | Lagerung für einen Sitz |
| US6601818B1 (en) | 2000-10-12 | 2003-08-05 | Lord Corporation | Tilting mount with integral flange |
| DE20019569U1 (de) * | 2000-11-17 | 2001-01-11 | Meyer Stephan | Sitzvorrichtung für ein Sitzmöbel |
| US6598936B1 (en) | 2001-04-11 | 2003-07-29 | Michael N. Klein | Multi-task mid-pivot chair control mechanism |
| US6979059B1 (en) * | 2004-09-16 | 2005-12-27 | Hc Holdings, Llc | Rocking chair construction |
| US20070241599A1 (en) * | 2006-04-17 | 2007-10-18 | Dewey Hodgdon | Chair flexpad support arrangement |
| US8087727B2 (en) | 2006-10-04 | 2012-01-03 | Formway Furniture Limited | Chair |
| US7775944B1 (en) | 2007-06-07 | 2010-08-17 | Shultz Larry D | Kinematic rotating-tilting mechanism |
| NO327014B1 (no) * | 2007-07-10 | 2009-04-06 | Hag As | Anordning ved vippebeslag for stol |
| NO328660B1 (no) * | 2008-04-02 | 2010-04-19 | Sapdesign As | Anordning ved stol |
| USD604535S1 (en) | 2008-04-09 | 2009-11-24 | Formway Furniture Limited | Chair |
| USD600051S1 (en) | 2008-04-09 | 2009-09-15 | Formway Furniture Limited | Chair back |
| US7681952B2 (en) * | 2008-06-06 | 2010-03-23 | Pro-Cord S.P.A. | Chair with tiltable backrest |
| CA131020S (en) | 2008-12-12 | 2010-02-03 | Formway Furniture Ltd | Chair |
| DE102010033021B4 (de) * | 2010-07-31 | 2016-05-19 | moll Funktionsmöbel GmbH | Sitzmöbel |
| US9693632B2 (en) * | 2012-06-01 | 2017-07-04 | Aaron Duke | Chair and chair tilt control assembly |
| US11304528B2 (en) | 2012-09-20 | 2022-04-19 | Steelcase Inc. | Chair assembly with upholstery covering |
| USD697726S1 (en) | 2012-09-20 | 2014-01-21 | Steelcase Inc. | Chair |
| WO2015003796A1 (de) * | 2013-07-07 | 2015-01-15 | Bock 1 Gmbh & Co. Kg | Mechanik für einen bürostuhl |
| NO339504B1 (no) * | 2014-10-17 | 2016-12-19 | Ekornes Asa | Balanseledd |
| US10966527B2 (en) | 2017-06-09 | 2021-04-06 | Steelcase Inc. | Seating arrangement and method of construction |
| US11259637B2 (en) | 2015-04-13 | 2022-03-01 | Steelcase Inc. | Seating arrangement |
| US10194750B2 (en) | 2015-04-13 | 2019-02-05 | Steelcase Inc. | Seating arrangement |
| CN107708491B (zh) | 2015-04-13 | 2022-02-22 | 斯迪尔科斯公司 | 座位布置 |
| ITMI20150540A1 (it) * | 2015-04-15 | 2016-10-15 | Co Fe Mo Ind S R L | Dispositivo di regolazione dell'oscillazione di una sedia |
| AT517446A1 (de) * | 2015-07-09 | 2017-01-15 | Innova Patent Gmbh | Sessel für einen Sessellift |
| DE102017117803A1 (de) * | 2017-08-05 | 2019-02-07 | Bock 1 Gmbh & Co. Kg | Wippmechanik |
| DE102017117806A1 (de) * | 2017-08-05 | 2019-02-07 | Bock 1 Gmbh & Co. Kg | Wippmechanik |
| US11006754B2 (en) | 2018-04-12 | 2021-05-18 | American Leather Operations, Llc | Motion chair |
| WO2020010468A1 (en) * | 2018-07-12 | 2020-01-16 | Corechair Incorporated | Resistive support mechanism |
| CN116763083A (zh) * | 2023-07-25 | 2023-09-19 | 深圳创博优科技发展有限公司 | 一种可偏转的折叠支架 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR626527A (fr) * | 1927-04-29 | 1927-09-08 | Nouvelle suspension élastique pour véhicules | |
| US2184988A (en) * | 1935-11-27 | 1939-12-26 | Collier Keyworth Company | Chair iron |
| CH275739A (de) * | 1949-08-19 | 1951-06-15 | Stoll Albert | Stuhl mit einem bei Belastung federnd nachgebenden Teil, der gegenüber dem Teil, an welchem er befestigt ist, verdrehbar ist. |
| FR1117628A (fr) * | 1954-12-30 | 1956-05-24 | Perfectionnement apporté aux sièges à dossier réglable | |
| DE2022525A1 (de) * | 1970-05-08 | 1971-11-25 | Vogel Ignaz Kg | Schaukellagerung |
| GB1324451A (en) * | 1971-06-04 | 1973-07-25 | Parker Knoll Ltd | Rocking mechanism for chairs |
| US3770235A (en) * | 1972-03-20 | 1973-11-06 | Flexible Co | Resiliently supported seat |
| SE396542B (sv) * | 1976-02-06 | 1977-09-26 | Kalmar Lens Landsting | Anordning vid for mobelunderreden avsedda s k gungaggregat |
| NO159335C (no) * | 1984-05-08 | 1988-12-21 | Haag A S | Laasbar vippemekanisme for stolsete eller lignende. |
-
1987
- 1987-01-23 NO NO870301A patent/NO160406C/no unknown
-
1988
- 1988-01-13 WO PCT/NO1988/000004 patent/WO1988005276A1/en active Application Filing
- 1988-01-13 JP JP63501056A patent/JPH01500406A/ja active Granted
- 1988-01-13 DE DE883890037T patent/DE3890037T1/de active Pending
- 1988-01-13 DE DE3890037A patent/DE3890037C2/de not_active Expired - Lifetime
- 1988-01-13 SE SE8803299A patent/SE500839C2/sv not_active IP Right Cessation
- 1988-01-31 US US07/235,900 patent/US4890886A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997022283A1 (en) * | 1995-12-18 | 1997-06-26 | Peter Opsvik A/S | A device for adjusting the tilting resistance of a chair seat |
Also Published As
| Publication number | Publication date |
|---|---|
| NO160406C (no) | 1989-04-19 |
| JPH01500406A (ja) | 1989-02-16 |
| NO870301D0 (no) | 1987-01-23 |
| DE3890037T1 (de) | 1989-05-03 |
| DE3890037C2 (no) | 1991-01-24 |
| US4890886A (en) | 1990-01-02 |
| NO870301L (no) | 1988-07-25 |
| SE8803299L (sv) | 1988-09-19 |
| SE8803299D0 (sv) | 1988-09-19 |
| JPH0556883B2 (no) | 1993-08-20 |
| WO1988005276A1 (en) | 1988-07-28 |
| SE500839C2 (sv) | 1994-09-12 |
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