EP0707816A1 - Vorrichtung zum Verriegeln der Schwenkvorrichtung eines Stuhls in verschiedenen Positionen - Google Patents
Vorrichtung zum Verriegeln der Schwenkvorrichtung eines Stuhls in verschiedenen Positionen Download PDFInfo
- Publication number
- EP0707816A1 EP0707816A1 EP95830264A EP95830264A EP0707816A1 EP 0707816 A1 EP0707816 A1 EP 0707816A1 EP 95830264 A EP95830264 A EP 95830264A EP 95830264 A EP95830264 A EP 95830264A EP 0707816 A1 EP0707816 A1 EP 0707816A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking element
- connecting rod
- oscillating support
- oscillating
- arm
- 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.)
- Ceased
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
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03266—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with adjustable elasticity
-
- 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
- A47C1/03274—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 of torsion type
Definitions
- the present invention pertains to chairs, especially office chairs, of the type comprising: a stationary box-shaped body fixed onto a supporting base, an oscillating support hinged onto said body and bearing the seat, and a mechanical device locking/unlocking the oscillating support, and therefore the seat, on the stationary body.
- the locking/unlocking device is used as a selector to vary horizontal arrangement of the oscillating support and to establish correspondingly many positions to use the seat for a more comfortable and handier use of the chair.
- Locking/unlocking devices with such a function have already been proposed placed and operating between the fixed box-body and the oscillating support and controlled by a control lever through a rigid connecting tie-rod.
- the oscillating unit for chairs is indicated globally with 10 and basically comprises an oscillating support 11 that supports the seating elements of seat and backrest, oscillating integrally or equipped with synchronized oscillations, and which is hinged, by means of at least one horizontal-transverse pin 12, to a box-body 13 applied fixed onto a supporting upright 14 that rises up from a base - not illustrated.
- the coupling by means of the pin 12 allows the support 11 to oscillate with respect to the box-body 13, and, to obtain this, said pin 12 is located transversely in the front portion of the two components 11, 13 whereas the supporting upright 13 is located back so that the oscillating support 11 can tilt downwards towards the back starting from a basically horizontal position.
- the free end 11' of the oscillating support is turned towards the supporting upright 14 whose top is housed in a corresponding hole 13' made in the box-body 13.
- this box-body 13 may be obtained by casting in a single piece and be provided on the inside with at least one pair of reliefs 15 adjacent to the hole 13' designed to receive the supporting upright.
- the box-body 13 is then fitted with a cover 16 which has no bearing functions, but only aesthetic functions:
- a selector device 17 is fixed which is designed to interact with the free end 11' of the oscillating support 11 to lock it in several positions and to allow changing the inclination of the seating elements on the box-body which remains fixed.
- One of the reliefs 15 inside the box-body acts as a pin and the selector device 17 is applied onto this relief.
- Said selector device 17 essentially comprises a locking element 18, a preselection connecting rod 19, and a pair of elastic means 20, 21 acting in opposite directions to each other.
- the locking element 18 and the preselection connecting rod 19 are fitted both rotating on a relief or pin 15.
- the elastic means 20, 21 are for example in the shape of helical springs also fitted on said relief or pin 15 and are for an elastic connection between the preselection connecting rod 19 and the locking element 18.
- the locking element 18, eccentrically, has a head 22 with a face turned towards the free end 11' of the oscillating support, and said face has a number of teeth or steps 23, arranged for height and designed to intercept and lock said free end 11' of the oscillating support at various levels.
- the preselection connecting rod 19 has a first arm 24 turned towards the head 22 of the locking element 18 and a second arm 25 turned in the opposite direction.
- This second arm 25 is connected to one end of a rigid tie-rod 26 whose opposite end is connected to a control lever 27 on one side of the unit 10 and susceptible to rotate around its axis to control, through the tie-rod 26, the rotation of the connecting rod 19.
- a first spring 20 has one of its ends engaged to the first arm 24 of the preselection connecting rod 19 and its other end hooked onto the locking element 18 adjacent to its head 22; the other spring 21 also has an end engaged to the first arm 24 of said connecting rod 19 and the other one hooked onto the locking element 18, but so as to act on this in opposition to the action of the first spring 20.
- the springs 20, 21 may be fitted in situ with no pre-charging and therefore handily; they are pre-charged with the connection of the connecting rod 19 to the tie-rod 26.
- the toothed locking element 18 has then a useful operating stroke towards and away from the free end 11' of the oscillating support 11 bounded by two stops 28, 29.
- the arrangement of the device 17 is clear along with its possibility to interact with the oscillating support 11 to lock the latter in various positions. It is sufficient to act on the control lever 27 to lock and unlock the device by means of the tie-rod 26. Then, a movement of the tie-rod in the direction of the arrow F in Fig. la tends to move the toothed head 22 of the locking element 18 further away from the oscillating support. However, the movement of the locking element 18 is not immediate since it is still engaged to the support because of the load weighing on this and on the tooth with which the support is joined.
- the connecting rod is however turned charging the spring 21. So as soon as the load on the seat is lightened, the locking element 18, stimulated by said spring, moves away from the support unlocking it. With a movement of the tie-rod 26 in the opposite direction (arrow G, in Fig. 1a) the connecting rod turns in the opposite direction and then it is the spring 20 that acts so as to move the locking element 18 into a position to intercept and stop the oscillating support in the desired position.
- the elastic means 20, 21 may also be of a different configuration and coupled with the locking element on one side and with the connecting rod on the other in a different manner to the above description without by this going outside the sphere of the invention.
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs Characterized By Structure (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBS940123 | 1994-10-20 | ||
IT94BS000123A IT1268781B1 (it) | 1994-10-20 | 1994-10-20 | Dispositivo selettore per il bloccaggio in varie posizioni del supporto oscillante del sedile di sedie |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0707816A1 true EP0707816A1 (de) | 1996-04-24 |
Family
ID=11345418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95830264A Ceased EP0707816A1 (de) | 1994-10-20 | 1995-06-23 | Vorrichtung zum Verriegeln der Schwenkvorrichtung eines Stuhls in verschiedenen Positionen |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0707816A1 (de) |
IT (1) | IT1268781B1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004093601A2 (en) * | 2003-03-28 | 2004-11-04 | Hanssem Co., Ltd. | Adjustable chair |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3638273A1 (de) * | 1986-10-13 | 1988-04-21 | Thonet Geb Gmbh | Sitzmoebel |
EP0482439A1 (de) * | 1990-10-24 | 1992-04-29 | Emilio Ambasz | Stuhlträger |
-
1994
- 1994-10-20 IT IT94BS000123A patent/IT1268781B1/it active IP Right Grant
-
1995
- 1995-06-23 EP EP95830264A patent/EP0707816A1/de not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3638273A1 (de) * | 1986-10-13 | 1988-04-21 | Thonet Geb Gmbh | Sitzmoebel |
EP0482439A1 (de) * | 1990-10-24 | 1992-04-29 | Emilio Ambasz | Stuhlträger |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004093601A2 (en) * | 2003-03-28 | 2004-11-04 | Hanssem Co., Ltd. | Adjustable chair |
WO2004093601A3 (en) * | 2003-03-28 | 2004-12-09 | Hanssem Co Ltd | Adjustable chair |
Also Published As
Publication number | Publication date |
---|---|
ITBS940123A0 (it) | 1994-10-20 |
IT1268781B1 (it) | 1997-03-06 |
ITBS940123A1 (it) | 1996-04-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES GB |
|
17P | Request for examination filed |
Effective date: 19960928 |
|
17Q | First examination report despatched |
Effective date: 19981201 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19981201 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20000716 |