WO2019069154A1 - Fauteuil à accoudoirs réglables - Google Patents

Fauteuil à accoudoirs réglables Download PDF

Info

Publication number
WO2019069154A1
WO2019069154A1 PCT/IB2018/056882 IB2018056882W WO2019069154A1 WO 2019069154 A1 WO2019069154 A1 WO 2019069154A1 IB 2018056882 W IB2018056882 W IB 2018056882W WO 2019069154 A1 WO2019069154 A1 WO 2019069154A1
Authority
WO
WIPO (PCT)
Prior art keywords
armrest
backrest
shank
box
adjustment
Prior art date
Application number
PCT/IB2018/056882
Other languages
English (en)
Inventor
Armando Donati
Original Assignee
Donati S.P.A.
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.)
Filing date
Publication date
Application filed by Donati S.P.A. filed Critical Donati S.P.A.
Publication of WO2019069154A1 publication Critical patent/WO2019069154A1/fr

Links

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
    • A47C1/03—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests
    • 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
    • A47C1/03205—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
    • A47C1/03244—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 positioned under the arm-rests

Definitions

  • the present invention relates to an armchair provided with an armrest group having an adjustable armrest.
  • the adjustments provided on these armchairs are generally related to the tilt of the backrest, the tilt of the seat, the height of the seat and the height of the armrests .
  • the present invention relates to the adjustment of the height of the armrests, in particular for armchairs which also provide for the adjustment of the tilt of the backrest .
  • the object of the present invention is to provide an armchair with adjustable armrest which meets the above requirements .
  • FIG. 1 shows an example of an armchair provided with an armrest group, according to an embodiment of the present invention
  • FIG. 3 shows the armrest group according to an embodiment
  • figure 4 shows a constructive diagram of the armrest group in figure 3;
  • FIG. 5 schematically shows the relative position of backrest and seat in three angular positions
  • FIG. 6a and 6b show means for adjusting the armrest group, respectively in a locked configuration and in an unlocked configuration
  • FIG. 7a to 7d show the armrest group in successive configurations at different height.
  • reference numeral 1 indicates an example of an office armchair.
  • the armchair 1 comprises a base 2, for example of the type with spokes 4, preferably provided with wheels 6, typically arranged at the end of the spokes 4.
  • the armchair 1 further comprises a vertical support column 8, supported by the base 2, for example centrally, generally consisting of a gas damper for adjusting the seat height.
  • the armchair 1 further comprises a seat 10, a backrest 12 and an adjusting device 14 applied to the lower side of the seat 10.
  • the adjustment device 14 engages with the support column 8, with the seat 10 and with the backrest 12, to allow the various adjustments the armchair is provided with .
  • the adjustment device 14 comprises a box 16 which contains the components of the adjustment mechanisms, and a plate 18 applied to the seat 10 and operatively engaged with the box 16.
  • the adjustment device 14 comprises a mechanism for adjusting the tilt of the backrest, accommodated in the box 16, operatively connected to the backrest 12 and maneuverable by means of a backrest tilt lever.
  • the backrest 12 is hinged to the box 16, for example at a pair of hinges, which define an axis of rotation A.
  • the adjustment device 14 comprises a mechanism for adjusting the height of the seat, accommodated in the box 16, operatively connected to the support column 8, inserted in a hole 20 of said box 16, and maneuverable by means of a seat height lever.
  • the adjusting device 14 is of the synchronized type and is suitable to achieve a predetermined tilt of the seat 10 according to the tilt of the backrest 12.
  • the adjusting device 14 comprises a mechanism to adjust the resistance to tilting of the backrest, housed in the box 16 and maneuverable by means of a knob.
  • the armchair 1 comprises a pair of armrest groups 30, arranged side by side, one on one side, one on the other, with respect to the seat 10.
  • each armrest group 30 comprises a shank 32, which during the adjustment of the armrest group remains fixed, and an armrest 34, engaged with the shank 32, comprising a support 36 for supporting an arm, and a guide 38 for the sliding engagement with the shank 32.
  • the armrest 34 is made in a single piece, for example by means of plastic molding.
  • the shank 32 comprises a sliding portion 40, along which the movement of the guide 38 of the armrest 34 is guided, and an adjustment portion 42, for adjusting and locking the relative position between the shank 32 and the armrest 34.
  • the sliding portion 40 is hinged to the box 16 of the adjustment device 14, along the rotation axis A, that is, coaxially to the axis in which the backrest 12 is hinged .
  • the sliding portion 40 cooperates with the guide 38 so as to define a circular trajectory of relative sliding, i.e. a trajectory lying on a first imaginary circumference CI, passing through the center of rotation A' defined by the intersection of the imaginary plane containing the first imaginary circumference CI and the rotation axis A.
  • the first imaginary circumference CI has a first center B ' .
  • the guide 38 has a box-shaped conformation and the shank 32, which slides therein, is located therein.
  • the support 36 of the armrest 34 has an arcuate pattern between a first end 54, hinged in the first center B' of the first imaginary circumference CI, and a second end 56, which connects to the guide 38.
  • the support 36 has an arcuate conformation and the median axis is curved and lies on a second imaginary circumference C2, passing through the first center B' of the first imaginary circumference CI and having center in the rotation center A' .
  • Figure 5 schematically illustrates, for an armchair provided with a synchronized adjustment device 14, the tilt taken by the backrest 12 and the seat 10, from a first normal configuration (I), in which the backrest 12 is substantially perpendicular to the seat 10, to an intermediate configuration (II), up to the maximum tilt configuration (III) .
  • the adjustment path of the armrest 34 with respect to the shank 32 is circular in any configuration.
  • the armrest group 30 further comprises adjustment means adapted to be maneuvered to adjust the relative position between the armrest 34 and the shank 32 and lock it in the desired position (figures 6a and 6b) .
  • Said adjustment means comprise said adjustment portion 42, provided with a plurality of teeth 44, a button 46, for example placed under the end portion of the support 36 and hinged thereto, and an elastic element 48 adapted to be included between the button 46 and the support 36.
  • the button 46 comprises an engagement portion 50, having a projection 52, normally meshed with the teeth 44 of the adjustment portion 42, so that the relative position between the shank 32 and the armrest 34 is blocked .
  • buttons 46 and 46 By actuating the button 46, it rotates and the projection 52 disengages from the adjustment portion 42, thus allowing relative sliding between the armrest 34 and the shank 32.
  • the button 46 can be released, so that the spring 50, by returning to the rest condition, pushes the projection 52 to mesh with the teeth 44 of the adjustment portion 42.
  • Figures 7a to 7d show the adjustment positions that the armrest group 30 can take, according to an embodiment, in any tilt condition of the backrest.
  • the armchair according to the invention meets the user's needs mentioned above.
  • the armrest group exhibits a particular comfort of adjustment, capable of satisfying the user's needs.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un fauteuil (1) qui comprend une assise (10), un dossier (12), un dispositif de réglage (14) et une paire de groupes d'accoudoirs (30). Chaque groupe d'accoudoirs comprend une tige (32) et un accoudoir (34) en prise coulissante, la tige (32) comprenant une partie coulissante (40) articulée le long de l'axe de rotation (A) du dossier (12). La partie coulissante (40) définit, conjointement avec un guide (38) de l'accoudoir (34), une trajectoire de coulissement circulaire passant par l'axe de rotation (A) du dossier (12).
PCT/IB2018/056882 2017-10-04 2018-09-10 Fauteuil à accoudoirs réglables WO2019069154A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102017000111037 2017-10-04
IT102017000111037A IT201700111037A1 (it) 2017-10-04 2017-10-04 Poltroncina con braccioli regolabili

Publications (1)

Publication Number Publication Date
WO2019069154A1 true WO2019069154A1 (fr) 2019-04-11

Family

ID=61187660

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2018/056882 WO2019069154A1 (fr) 2017-10-04 2018-09-10 Fauteuil à accoudoirs réglables

Country Status (3)

Country Link
IT (1) IT201700111037A1 (fr)
TW (1) TW201934050A (fr)
WO (1) WO2019069154A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110200439A (zh) * 2019-06-13 2019-09-06 泉州极简机器人科技有限公司 电动床及其扶手

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883174A (en) * 1974-08-05 1975-05-13 Joan C Roscoe Adjustable chair
TWM244820U (en) * 2003-11-14 2004-10-01 Yi-Luen Shiau Device for adjusting the depth and tilting angle of backrest of chair

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883174A (en) * 1974-08-05 1975-05-13 Joan C Roscoe Adjustable chair
TWM244820U (en) * 2003-11-14 2004-10-01 Yi-Luen Shiau Device for adjusting the depth and tilting angle of backrest of chair

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110200439A (zh) * 2019-06-13 2019-09-06 泉州极简机器人科技有限公司 电动床及其扶手

Also Published As

Publication number Publication date
IT201700111037A1 (it) 2019-04-04
TW201934050A (zh) 2019-09-01

Similar Documents

Publication Publication Date Title
EP2395962B1 (fr) Appui-tête à double articulation pour chaise
EP3197320B1 (fr) Chaise avec mécanisme d'inclinaison d'appuie-tête
US7234777B2 (en) Chair with adjustable armrests and backrest
EP0061967B1 (fr) Siège avec dossier inclinable et accoudoir
CN108851706B (zh) 特别用于办公椅的扶手
US7530639B2 (en) Chair with adjustable foot support
WO2002102196A2 (fr) Mecanisme multpositions de limitation d'inclinaison
WO2019069154A1 (fr) Fauteuil à accoudoirs réglables
KR20190013739A (ko) 조절식 등받이가 있는 의자 또는 안락 의자
US20020190561A1 (en) Vertically and horizontally adjustable chair armrest
US20230073826A1 (en) Seating structure
JP5776503B2 (ja) 車両用シート調整装置
EP3272250B1 (fr) Accoudoir de chaise
EP3383698A1 (fr) Appui-tête à translation avant
KR20140107802A (ko) 등받이 높이 조절이 가능한 의자
EP1912535B1 (fr) Fauteuil ou lit ayant un siège, un dossier et un accoudoir et utilisation de celui-ci
US9770111B2 (en) Height adjusting mechanism and stool for dental practitioner
KR101616507B1 (ko) 헤드레스트를 구비한 의자
EP2997947B1 (fr) Aide à la mobilité du bras ou de l'avant-bras d'une personne
KR101524916B1 (ko) 의자경사장치
EP3785570B1 (fr) Assise de chaise avec mécanisme de coulissement et de verrouillage
JP3184779U (ja) 椅子
US887267A (en) Reclining-chair.
CA3060300C (fr) Siege de fauteuil et mecanisme de verrouillage
EP4223586A1 (fr) Ensemble accoudoir, en particulier pour sièges de véhicule

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18773854

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18773854

Country of ref document: EP

Kind code of ref document: A1