EP0160221A1 - Chaise de bureau - Google Patents

Chaise de bureau Download PDF

Info

Publication number: EP0160221A1
Authority: EP; European Patent Office
Prior art keywords: walls; support arm; arm; leg walls; office chair
Prior art date: 1984-03-31
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

Application number

EP85103886A

Other languages

German (de)

English (en)

Other versions

EP0160221B1 (fr

Inventor

Dieter Merz

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.)

Wilhelm Link & Co KG Stahlrohrmobel GmbH

Original Assignee

Wilhelm Link & Co KG Stahlrohrmobel GmbH

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.)

1984-03-31

Filing date

1985-04-01

Publication date

1985-11-06

1985-04-01 Application filed by Wilhelm Link & Co KG Stahlrohrmobel GmbH filed Critical Wilhelm Link & Co KG Stahlrohrmobel GmbH

1985-04-01 Priority to AT85103886T priority Critical patent/ATE32417T1/de

1985-11-06 Publication of EP0160221A1 publication Critical patent/EP0160221A1/fr

1988-02-10 Application granted granted Critical

1988-02-10 Publication of EP0160221B1 publication Critical patent/EP0160221B1/fr

Status Expired legal-status Critical Current

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
- A47C1/022—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 inclination
- A47C1/027—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable inclination by means of clamps or friction locking members

Definitions

the invention relates to an office chair with a seat support arranged on a chair column and with a backrest which is arranged on a support arm which is adjustable in its inclined position relative to the seat support about an axis running behind the seat support, the adjusting device for the support arm having clampable slats.
the invention has for its object to provide an office chair with an adjusting device of the type mentioned so that the adjusting device for the backrest is designed to save space and does not require any special measures on the seat support.
the pivot axis for the support arm is formed by a bolt which is formed by the leg walls of a U-shaped articulated fork, the free end of a rigidly attachable holding arm which protrudes from the seat support and which emerges behind the chair seat is, and through the abutting against these leg walls leg walls of a second U-shaped joint fork, which is formed at one end of the support arm for the backrest, that the in a known manner partly with the support arm and partly with the holding arm coupled non-rotatably Slats are housed within the joint knot space delimited by the leg walls parallel to the leg walls and that all leg walls and lamellae have additional openings for the passage of a threaded head bolt, on the end of which one against the outside of a leg wall of the joint knot acting handle clamping nut is screwed to pull the U-leg walls and the slats against each other.
the adjusting device for the backrest is accommodated in a space-saving manner in an articulated knot arranged behind the seat support of the office chair, in the knot in the leg walls limited space can also be a known, acting on the support arm of the backrest biasing spring in the form of a pushed onto the bolt forming the pivot torsion spring.
the fastening of the holding arm to the seat support of the office chair is completely free and adaptable to different seat support constructions.
the adjustment device is locked or released by means of the grip nut that is easily accessible behind the seat by the user of the office chair.
the hinge knot comprising the adjusting device can advantageously be covered by means of a protective housing which preferably has flexible walls, from which only the grip clamping nut protrudes and to which expediently flexible protective sleeves are attached for the exposed parts of the holding arm and of the support arm, which cover all parts, so that none of them require special surface treatment.
a protective housing which preferably has flexible walls, from which only the grip clamping nut protrudes and to which expediently flexible protective sleeves are attached for the exposed parts of the holding arm and of the support arm, which cover all parts, so that none of them require special surface treatment.
This tight-fitting, thin-walled protective housing which can preferably be made of plastic, also maintains the space-saving effect of the construction of the adjustment arrangement, so the space gained is not wasted again by a voluminous protective housing.
FIG. 1 shows an office chair with a foot star 11 provided with castors 10, a chair column 12 arranged centrally on the foot star and covered with a bellows, a seat support 13 and with a backrest 14 which is also provided with a support arm 16 also covered by a bellows , which is connected to the seat support 13 via an articulated node 15.
the articulated node 15, which allows the backrest 14 to be adjusted and fixed in any desired swivel position relative to the seat support 13, is shown in more detail in FIGS. 2 to 4. 2, this hinge 15 is surrounded by an essentially cylindrical protective housing 17 made of flexible plastic material.
This cylindrical protective housing has on one end face a central opening 18 through which the end of a screw bolt 19 protrudes, on which a gripping nut 20 shown in FIGS. 1 and 3 is arranged.
the bellows 21 which surrounds the tubular support arm 16 for the backrest 14 and a cladding attachment 22 for a holding arm 23 which can be fastened to the seat support 13 are formed directly on the cylindrical protective housing 17.
FIGS. 3 and 4 show the hinge 15 without the protective housing 17.
Both the support arm 16 and the holding arm 23 end in a U-shaped hinge fork 24 and 25, which the hinge 15 to the outside by two parallel to each other at a distance limit arranged leg walls.
the articulated fork 24 of the support arm 16 has the two leg walls 26 and 27 which protrude between the two leg walls 28 and 29 of the articulated fork 25 of the holding arm 23 (FIG. 3).
the leg walls 26, 27 and 28, 29 of both joint forks 24 and 25 of the joint node 15 are provided with bores for inserting a bolt 30 secured on both sides by snap rings 31, which forms the pivot axis of the joint node 15.
the bolt 30 also protrudes through openings in a plate pack, which is composed of plates 32 non-rotatably coupled to the support arm 16 and plates 33 non-rotatably coupled to the holding arm 23, which engage in a known manner to form frictional engagement surfaces and all parallel to the leg walls 26 - 29 of the two joint forks 24 and 25 run.
a plate pack which is composed of plates 32 non-rotatably coupled to the support arm 16 and plates 33 non-rotatably coupled to the holding arm 23, which engage in a known manner to form frictional engagement surfaces and all parallel to the leg walls 26 - 29 of the two joint forks 24 and 25 run.
a screw on the bolt 30 inside the joint node 15 bent torsion spring 34 one end 36 of which rests on a bolt 35 and which exerts a prestressing force on the support arm 16 in the direction of its front pivot end position.
the rotationally fixed connection of the slats 32 to the joint fork 24 is achieved by means of the second bolt 35, which runs between the two leg walls 26 and 27 and through additional holes in the slats 32.
the rotationally fixed coupling of the other plates 33 with the joint fork 25 is brought about by their arrangement on the threaded head bolt 19, which is passed through an unspecified round bore in the plates 33 and a slot 38 shown in FIG. 4 of the plates 32 and on one end carries the grip nut 20. At its other end, this threaded head bolt 19 is provided with a flat head 39.
a bushing 40 is also slid onto the threaded head bolts 19 penetrating all the leg walls 26-29 and the lamellae 32 and 33 and bridges the free space between the leg wall 26 and the lamella pack 32/33.
a pressure ring 41 is inserted into the opening provided in the outer leg wall 28 of the joint fork 25 for the threaded head bolt 19, against which an end section 20a of the grip clamping nut 20 comes into contact and a clamping pressure exerted by the grip clamping nut 20 directly on the inner leg wall 26 Articulated fork 24 transmits.

Landscapes

Health & Medical Sciences (AREA)
Dentistry (AREA)
General Health & Medical Sciences (AREA)
Chairs Characterized By Structure (AREA)

EP85103886A 1984-03-31 1985-04-01 Chaise de bureau Expired EP0160221B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT85103886T ATE32417T1 (de)	1984-03-31	1985-04-01	Buerostuhl.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19843412018 DE3412018A1 (de)	1984-03-31	1984-03-31	Buerostuhl
DE3412018		1984-03-31

Publications (2)

Publication Number	Publication Date
EP0160221A1 true EP0160221A1 (fr)	1985-11-06
EP0160221B1 EP0160221B1 (fr)	1988-02-10

Family

ID=6232202

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP85103886A Expired EP0160221B1 (fr)	1984-03-31	1985-04-01	Chaise de bureau

Country Status (3)

Country	Link
EP (1)	EP0160221B1 (fr)
AT (1)	ATE32417T1 (fr)
DE (1)	DE3412018A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0473291A1 (fr) *	1990-08-27	1992-03-04	Andrew M. Kvalheim	Chaise transformable
GB2255499A (en) *	1991-05-09	1992-11-11	Northeastern Components	"chair back adjustment mechanism"
ES2060487A2 (es) *	1991-11-27	1994-11-16	Ind Y Fundiciones Iglesias S A	Mejoras introducidas en los dispositivos reguladores de la inclinacion de respaldos de asientos de oficina y similares.
US5863099A (en) *	1995-02-15	1999-01-26	Ashfield Engineering Company Wexford Limited	Actuator for a chair mechanism lock
EP3132719A1 (fr) *	2015-08-19	2017-02-22	Hettich Franke GmbH & Co. KG	Ferrure pivotante et meuble rembourre

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1389600A (fr) *	1964-01-09	1965-02-19		Dossier réglable pour siège et siège en comportant application
FR2338015A1 (fr) *	1976-01-13	1977-08-12	Miller Herman Inc	Embrayage manoeuvrable manuellement pour dossier de chaise

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB401718A (en) *	1932-05-18	1933-11-20	Leabank Mfg Company Ltd	Improvements relating to chairs and like seats
GB699540A (en) *	1951-08-28	1953-11-11	Leabank Chairs Ltd	Improvements in chairs and like seats
DE2630820A1 (de) *	1976-07-08	1978-01-12	Westfael Eisen & Stahl	Lagereinheit und arretiervorrichtung fuer sitz- und/oder liegemoebel mit verstellbaren teilen
DE2927377C2 (de) *	1979-07-06	1983-12-08	Steifensand Sitzmöbel- und Tischfabrik Inh.: F. Martin Steifensand, 8501 Wendelstein	Sitzmöbel, insbesondere Bürodrehstuhl

1984
- 1984-03-31 DE DE19843412018 patent/DE3412018A1/de not_active Ceased
1985
- 1985-04-01 AT AT85103886T patent/ATE32417T1/de not_active IP Right Cessation
- 1985-04-01 EP EP85103886A patent/EP0160221B1/fr not_active Expired

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1389600A (fr) *	1964-01-09	1965-02-19		Dossier réglable pour siège et siège en comportant application
FR2338015A1 (fr) *	1976-01-13	1977-08-12	Miller Herman Inc	Embrayage manoeuvrable manuellement pour dossier de chaise

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0473291A1 (fr) *	1990-08-27	1992-03-04	Andrew M. Kvalheim	Chaise transformable
GB2255499A (en) *	1991-05-09	1992-11-11	Northeastern Components	"chair back adjustment mechanism"
GB2255499B (en) *	1991-05-09	1995-03-01	Northeastern Components	Chair back adjustment mechanism
ES2060487A2 (es) *	1991-11-27	1994-11-16	Ind Y Fundiciones Iglesias S A	Mejoras introducidas en los dispositivos reguladores de la inclinacion de respaldos de asientos de oficina y similares.
US5863099A (en) *	1995-02-15	1999-01-26	Ashfield Engineering Company Wexford Limited	Actuator for a chair mechanism lock
EP3132719A1 (fr) *	2015-08-19	2017-02-22	Hettich Franke GmbH & Co. KG	Ferrure pivotante et meuble rembourre

Also Published As

Publication number	Publication date
DE3412018A1 (de)	1985-10-03
ATE32417T1 (de)	1988-02-15
EP0160221B1 (fr)	1988-02-10

Legal Events

Date	Code	Title	Description
1985-09-07	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1985-11-06	AK	Designated contracting states	Designated state(s): AT BE CH FR GB IT LI LU NL SE
1986-01-02	17P	Request for examination filed	Effective date: 19851017
1986-11-20	17Q	First examination report despatched	Effective date: 19861006
1987-12-24	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1988-02-10	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE CH FR GB IT LI LU NL SE
1988-02-10	ITF	It: translation for a ep patent filed
1988-02-10	REF	Corresponds to:	Ref document number: 32417 Country of ref document: AT Date of ref document: 19880215 Kind code of ref document: T
1988-03-18	ET	Fr: translation filed
1988-05-18	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
1988-12-08	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1988-12-08	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1989-01-25	26N	No opposition filed
1993-03-19	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 19930319 Year of fee payment: 9
1993-03-22	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19930322 Year of fee payment: 9
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1993-03-24	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: LU Payment date: 19930324 Year of fee payment: 9
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1993-04-29	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 19930429 Year of fee payment: 9
1993-04-30	ITTA	It: last paid annual fee
1993-04-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19930430 Year of fee payment: 9
1993-07-16	EPTA	Lu: last paid annual fee
1994-04-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19940401 Ref country code: GB Effective date: 19940401 Ref country code: AT Effective date: 19940401
1994-04-02	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19940402
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1994-10-31	BERE	Be: lapsed	Owner name: WILHELM LINK G.M.B.H. & CO. K.G. STAHLROHRMOBEL Effective date: 19940430
1994-11-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19941101
1994-11-30	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19940401
1994-12-16	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1994-12-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19941229
1994-12-30	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
1995-01-31	EUG	Se: european patent has lapsed	Ref document number: 85103886.9 Effective date: 19941110
1995-02-24	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST

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