EP2893844B1 - Siège doté d'un élément de tête pivotant motorisé - Google Patents

Siège doté d'un élément de tête pivotant motorisé Download PDF

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Publication number
EP2893844B1
EP2893844B1 EP15150239.0A EP15150239A EP2893844B1 EP 2893844 B1 EP2893844 B1 EP 2893844B1 EP 15150239 A EP15150239 A EP 15150239A EP 2893844 B1 EP2893844 B1 EP 2893844B1
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EP
European Patent Office
Prior art keywords
lever
head part
adjusting
seating furniture
adjusting lever
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.)
Active
Application number
EP15150239.0A
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German (de)
English (en)
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EP2893844A1 (fr
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.)
Ferdinand Lusch GmbH and Co KG
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Ferdinand Lusch GmbH and Co KG
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.)
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Publication date
Application filed by Ferdinand Lusch GmbH and Co KG filed Critical Ferdinand Lusch GmbH and Co KG
Priority to PL15150239T priority Critical patent/PL2893844T3/pl
Publication of EP2893844A1 publication Critical patent/EP2893844A1/fr
Application granted granted Critical
Publication of EP2893844B1 publication Critical patent/EP2893844B1/fr
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Classifications

    • 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
    • A47C7/38—Support for the head or the back for the head

Definitions

  • the invention relates to a chair, preferably armchair or sofa, with a backrest and a relative to the backrest motor-pivotable headboard, wherein the headboard is supported by a pivoting lever.
  • Seating such as sofas or armchairs, with respect to the backrest pivoting headboards are known in different configurations and allow the user of the chair to take a comfortable sitting and / or lying position.
  • the head part which is also referred to as a headrest
  • the motorized adjustment of the headboard relative to the backrest further enhances the comfort of the user of the chair, especially when the mobility of the user is limited. Then the user does not have to grasp and adjust the headboard behind them with their hands. Rather, it is sufficient to press a button on an easily accessible control panel.
  • a disadvantage of the motorized adjustment of the head part relative to the backrest is the high design complexity and the required installation space for the pivot fitting together with the motor drive. Therefore, in particular seating with narrowly formed backrests, so backrests that have a small depth substantially perpendicular to the backrest, rarely equipped with motorized pivoting headboards.
  • a swivel fitting for manual adjustment of a head part is eg from the EP2526829A1 known.
  • the present invention seeks to provide a seating of the aforementioned type and previously described in such a way and further, that even seating with narrow backrests can be easily equipped with a motorized headrest adjustment.
  • a chair characterized in that the head part is connected via a lever to the backrest, that the pivot lever and the adjusting lever are pivotable about a pivot axis against each other, that the adjusting lever relative to the backrest of a lower position is adjustable in an upper position and back that the pivot lever is connected via a lever connection comprising a handlebar lever and a control lever to the backrest that the handlebar lever is pivotable relative to the pivot lever and the control lever, that the control lever is pivotable relative to the backrest and that the control lever is so connected to the adjusting lever, that the control lever is pivoted when adjusting the adjusting lever from the lower position to the upper position and back against the backrest and so causes a pivoting of the pivot lever relative to the actuating lever via the handlebar lever ,
  • the head part is held by a pivot lever which is supported for adjusting the head part via an adjusting lever on the backrest, wherein the pivot lever is pivotable relative to the adjusting lever and the adjusting lever can be adjusted in height relative to the backrest.
  • the pivot lever is also connected via a further lever connection with the backrest, wherein the lever connection comprises at least one handlebar lever and a control lever.
  • the handlebar lever is pivotally mounted both relative to the pivot lever and with respect to the control lever.
  • the control lever is pivotable relative to the backrest and connected to the adjusting lever, that the adjusting lever pivots the control lever when the adjusting lever is adjusted in height, in particular pulled out or inserted against the backrest, is.
  • control lever with the end facing away from the handlebar lever in a manner opposite to the backrest be determined that this end can not be moved in the same way by the adjusting lever, as with the adjusting lever connected area of the pivot lever.
  • control lever does not have to be fixed completely stationary relative to the backrest.
  • connection between the control lever and the adjusting lever may be formed so that the control lever is pivoted at least one end up when the adjusting lever is moved from the lower position to the upper position.
  • the same end of the control lever can be pivoted down. This end may be associated with the handlebar lever and thus this shift depending on the adjustment of the actuating lever up or down, whereby the pivot lever is moved to the pivoted-upper position or in the Norwichverschwenkte lower position.
  • the free mobility of the remote from the handlebar lever end of the control lever can be blocked by a connection of this end with the backrest in any case in relation to the opposite end of the control lever.
  • the head part is thus moved when adjusting the same about the height adjustment of the control lever up or down and additionally pivoted back and forth on the simultaneous pivoting of the control lever. That adjustment of the head part upwards and forwards to the pivoted-on position leads to a stretching of the upholstered section which is bent more strongly in the back-swiveled position of the head part. This allows adjustment of the backrest without wrinkling of the pad.
  • a mere pivoting of the head part from a position which is angled relative to the backrest to a position which is aligned substantially parallel to the backrest would, in the case of upholstery of the backrest and head part, lead to wrinkling of the padding material which is in this position.
  • pile material is provided for bending the pad rearwardly so that the pad does not need to be stretched in that area.
  • the mechanism for motorized adjustment of the head part according to the invention comes with relatively few components.
  • the corresponding mechanism can therefore be mounted quickly and inexpensively.
  • the handlebar lever is connected directly to the pivot lever and the control lever. This can be done in each case via a pivot connection, so that the link lever is pivotable about a pivot axis with the pivot lever and the control lever. If necessary, but in principle further components can be integrated into the swivel fitting.
  • control lever is connected via one end to the backrest, via another end to the handlebar lever and between the two ends with the adjusting lever. Then the control lever can cause a reliable and extensive adjustment of the head part even at a small length.
  • the control lever can be pivoted by the connection with the adjusting lever at the handlebar lever associated end up or down.
  • the handlebar lever can thereby also be adjusted in height relative to the backrest so as to pivot the pivot lever up or down.
  • the lever connection comprising the link lever and the control lever to simplify the construction via a pivotal connection, in particular via a hinge, engage the pivot lever, wherein the pivot connection for simplicity can define a pivot axis or a rotation axis between the pivot lever and the link lever.
  • the pivot connection between the pivot lever and the link lever between the free end of the head part associated end of the pivot lever on the one hand and a pivotal connection between the rocker arm and the lever on the other hand engages the pivot lever.
  • the connection between the pivot lever and the lever connection can define a pivot axis which is arranged between the end of the pivot lever associated with the free end of the head part and the pivot axis between the pivot lever and the control lever.
  • the simple adjustability and the stable mounting of the control lever half of the lever can be held on a holder on the backrest and against the holder at least partially extendable in the vertical direction, preferably telescopically be.
  • the holder and / or the adjusting lever may be formed as a rail element.
  • the holder and the adjusting lever are preferably formed as a rail system.
  • at least one rail element can be mounted via rollers to reduce frictional forces.
  • the control lever can be set directly to the support for the lever to simplify the design effort. In order to compensate for movements when adjusting the head part, but the control lever can also be set, for example via a balance lever on the bracket.
  • the lever may have an upper stop which is active in an upper position of the control lever and / or the head part.
  • the upper stop ensures in the upper position of the control lever then that a further adjustment of the control lever after prevented above, in particular blocked, is achieved by the upper stop in plant preferably on the control lever.
  • the adjusting lever may have a lower stop, which is active in a lower position of the adjusting lever and / or the head part.
  • the lower stop ensures in the lower position of the control lever that prevents further adjustment of the control lever down, in particular blocked, preferably passes by the lower stop in abutment on the holder of the control lever.
  • the motor drive of the head part engages the adjusting lever or the handlebar lever. This allows a space-saving design and the transmission of high forces.
  • the motor drive engages the handlebar lever. If the backrest is then pressed down by the user, the resulting forces can be dissipated essentially via the motor drive, so that the control lever, in particular the connection between the control lever and the control lever, is relieved. This avoids damage.
  • the corresponding mechanism can be made smaller and more space-saving.
  • a simple and robust head part adjustment can be created if the motor drive is a linear drive.
  • a threaded rod can be guided through the motor housing, which can be extended from the motor housing and retracted again.
  • the position of the head part is dependent on the position of the threaded rod.
  • the threaded rod can be connected via a pivotally mounted relative to the, in particular on the threaded rod mounted drive lever with the head part.
  • a backrest 1 and a motor-adjustable head part 2 is shown, on the right side of the chair 3 in the form of a chair.
  • the provided on the right side of the chair 3 swivel fitting 4 for adjusting the head part 2 is provided in the same way mirror image on the left side of the chair 3, not shown.
  • the seating 3 comes with a single motor drive 5.
  • the motor drive 5 is mounted on a transverse strut 6 of the seat 3, wherein the transverse strut 6 is supported on both side walls 7 of the backrest 1.
  • the motor drive 5 is designed as a linear drive and comprises a motor housing 8 and a threaded rod 9 held displaceably therein.
  • the threaded rod 9 is also connected to a drive lever 10 which is pivotably fixed to the threaded rod 9.
  • the drive lever 10 connects the threaded rod 9 with a transversely to the seat 3 extending and the two pivot fittings 4 interconnecting drive strut 11.
  • the use of a drive lever 10 is optionally dispensable. However, the drive lever 10 increases the flexibility with respect to the adjustment of the swivel fitting 4, without increasing the risk of blocking the swivel fitting 4.
  • the motor housing 8 is pivotally provided about the cross member 6, but this is not mandatory.
  • the motor housing 8 is pivoted during adjustment of the head part 2 of the Victoriaverschwenkten position in the pivoted position slightly backwards, away from the backrest 1. This results from the adjustment of the drive strut 11 during pivoting of the head part 2.
  • a pivotal connection between the drive lever 10 and the drive strut 11 may be provided.
  • the head part 2 can be adjusted by extending the threaded rod 9 from the motor housing 8 upwards in the pivoted position. This is in the Fig. 2 shown. In the swung-open position of the head part 2, the head part 2 is not only pivoted forward, but also shifted upwards. This is served in the Fig. 3 closer fitting shown 4.
  • the backrest 1 and the head part 2 are shown in the pivoted-back position including padding 12.
  • the head part 2 is shown in the same seat 3 in the swung-open position.
  • the head part 2 is thereby shown on the respective Side of the chair 3 by a pivot lever 13 worn.
  • the pivoting lever 13 has a free end, which in the illustrated preferred seat 3 in the direction of the free end of the head part 2 has or at least associated with it.
  • With the opposite end of the pivot lever 13 is freely rotatably mounted on a lever 14.
  • the pivotal connection 15 between the rocker arm 13 and the adjusting lever 14 enables a free and unhindered pivoting of the head part 2 relative to the adjusting lever 14 over the entire adjustment range of the head part 2.
  • the adjusting lever 14 of the illustrated and so far preferred seat 3 is designed approximately Z-shaped and received with the pivot lever facing away from the end in a holder 16 or held on a holder 16.
  • the holder 16 is fixed to the backrest 1.
  • the lower portion of the actuating lever 14 and the holder 16 of the illustrated and so far preferred seating furniture 3 form a rail system which is designed such that the adjusting lever 14 can be pulled upwards out of the holder 16 and then pushed back down into the holder 16 , About the displacement of the control lever 14, the head part 2 ultimately against the backrest 1 are moved up and down.
  • This lever connection 17 engages the pivot lever 13 adjacent to the pivot connection 15 between the pivot lever 13 and the adjusting lever 14 in the form of a rotary joint, namely at townverschwenktem head part 2 both horizontally and vertically spaced from the pivot between the pivot lever 13 and the lever 14th
  • the point of the lever link 17 on the pivot lever 13 is thus opposite the pivot of the pivot lever 13 with the lever 14 on the one hand down and on the other hand to the free end of the pivot lever thirteenth or of the head part 2 is offset to the rear.
  • the lever connection 17 between the pivoting lever 13 and the backrest 1 comprises a handlebar lever 18, a control lever 19 and a balance lever 20. Further levers or the like would be conceivable, but rather to be avoided from a constructive point of view.
  • the handlebar lever 18 is connected in each case via a pivot connection 21 in the form of a rotary joint with the pivot lever 13 and the control lever 19.
  • the motor drive 5 is connected via the handlebar lever 18 to the pivot fitting 4 for adjusting the head part 2.
  • the drive strut 11 connected to the motor drive 5 is fixed to the handlebar lever 18.
  • the link lever 18 extends substantially on the back of the actuating lever 14.
  • the link lever 18 is pivotally connected to the control lever 19 via a connection 21 in the form of a rotary joint.
  • the same connection 22 is provided at the other end of the control lever 19 for connecting the control lever 19 to a compensating lever 20, which in turn is pivotally fixed to the holder 16 of the actuating lever 14.
  • the balancing lever 20 could also be dispensed with.
  • the compensation lever 20 allows a more comfortable adjustment path of the head part 2.
  • the control lever 19 is connected between its connections 21,22 with the balancing lever 20 on the one hand and the handlebar lever 18 on the other hand with the adjusting lever 14.
  • the control lever 19 is connected via a pivot connection 23 in the form of a rotary joint with the adjusting lever 14. Therefore, the control lever 19 is pivoted upon adjustment of the control lever 14 and thus moves the handlebar lever 18 depending on the adjustment of the control lever 14 upwards or downwards.
  • the link lever 18 pivots the pivot lever 13 together with the head part 2 back and forth about the pivotal connection 15 of the pivot lever 13 with the lever 14th
  • the handlebar lever 18 is thus displaced upward upon extension of the threaded rod 9 of the motor drive 5, wherein the handlebar 18 pivots the pivot lever 13 relative to the adjusting lever 14 about the common pivot axis between pivot lever 13 and lever 14 in a more upright position.
  • the handlebar lever 18 pulls the connected to the handlebar lever 18 end of the control lever 19 with upward. Via the connection 23 between the control lever 19 and the adjusting lever 14, this leads to a raising of the adjusting lever 14.
  • the adjusting lever 14 is adjusted upward by the adjusting lever 14 partially pulled out of the holder 16 as a result of 16 formed with the support rail system 16 becomes. The displacement of the actuating lever 14 upwards leads to a corresponding adjustment of the thereby pivoting head part 2 upwards.
  • stop 24 in the form of a pin in contact with the control lever 19. This will both the further adjustment of the control lever 14 upwards and the other Pivoting the control lever 19 prevented.
  • the swivel fitting 4 can be brought back into the lower end position in the Fig.1 and 3 is shown.
  • the threaded rod 9 is driven by a motor down, whereby the handlebar lever 18 is pulled down. This ensures the coupling with the pivot lever 13 for pivoting the head part 2 in the rear position.
  • the handlebar lever 18 pivots the control lever 19 down, thereby shifting the lever 14 down.
  • the lower portion of the actuating lever 14 is thereby increasingly received in the holder 16 on the backrest 1.
  • the control lever 19 therefore moves the head part 2 down.
  • the lower end position is achieved when the present Z-shaped adjusting lever 14 or alternatively strikes the backrest 1 with a stop 25 on the holder 25 of the actuating lever 14.
  • the adjusting lever 14 can then not be moved further down, whereby a further pivoting of the head part 2 is prevented to the rear.

Claims (11)

  1. Siège (3), de préférence fauteuil ou canapé, avec un dossier (1), une partie de tête motorisée inclinable (2) par rapport au dossier (1) et un entraînement motorisé (5) pour le déplacement motorisé de la partie de tête (2), la partie de tête (2) étant supportée par un levier pivotant (13),
    caractérisé en ce que la partie de tête (2) est reliée au dossier (1) par un levier de réglage (14), le levier pivotant (13) et le levier de réglage (14) sont inclinables l'un par rapport à l'autre autour d'un axe de rotation, le levier de commande (14) est de nouveau réglable par rapport au dossier (1) d'une position inférieure dans une position supérieure le levier pivotant (13) est relié par un mécanisme à levier (17) comprenant un bras oscillant (18) et un levier de commande (19) au dossier (1), le bras oscillant (14) est inclinable par rapport au levier pivotant (13) et au levier de commande (14), le levier pivotant (13) est inclinable par rapport au dossier (1) et le levier de commande (19) est ainsi relié au levier de réglage (14), le levier de commande (19) est incliné de la position inférieure à la position supérieure et de nouveau contre le dossier (1) en déplaçant le, levier de réglage (14) et ainsi opère une inclinaison du levier pivotant (13) par rapport au levier de réglage (14) via le bras oscillant (18).
  2. Siège selon la revendication 1,
    caractérisé en ce que
    le levier de commande (19) est relié par une extrémité au dossier (1), par une autre extrémité au bras oscillant (18) et, entre les deux extrémités, au levier de réglage (14).
  3. Siège selon la revendication 1 ou 2,
    caractérisé en ce que
    le levier de commande (19) et le levier de réglage (14) sont reliés I' un à l'autre par une liaison pivotante (23).
  4. Siège selon la revendication 1 à 3,
    caractérisé en ce que
    le mécanisme à levier (17) s'accroche au levier pivotant (13) au moyen d'une liaison pivotante (21), la liaison pivotante (21), notamment l'axe de pivotement, est agencée entre l'extrémité située à l'extrémité libre de la partie de tête (2) ainsi que la liaison pivotante (15), notamment l'axe de pivotement, se trouve entre le levier pivotant (13) et le levier de réglage (14).
  5. Siège selon la revendication 1 à 4,
    caractérisé en ce que
    le levier de réglage (14) est maintenu par un support (16) contre le dossier (1) et contre le support (16) au moins en partie extractible à la verticale, de préférence télescopique.
  6. Siège selon la revendication 1 à 5,
    caractérisé en ce que
    le levier de commande (19) est fixé directement ou au moyen d'un levier de compensation (20) au support (16).
  7. Siège selon la revendication 1 à 6,
    caractérisé en ce que
    le levier de réglage (14) présente une butée (24) et la butée supérieure (24) dans la position supérieure du levier de réglage (14) entre, d' une façon empêchant l'ultérieur déplacement vers le haut du levier de réglage (14), en contact avec le levier de commande (19).
  8. Siège selon la revendication 1 à 7,
    caractérisé en ce que
    le levier de réglage (14) présente une butée inférieure (25) et la butée inférieure (25) dans la position inférieure du levier de réglage (14) entre, d'une façon empêchant l'ultérieur déplacement vers le bas du levier de réglage (14), en contact avec le support (16).
  9. Siège selon la revendication 1 à 8,
    caractérisé en ce que
    l'entraînement motorisé (5) de la partie de tête (2) agisse sur le levier de réglage (14) ou le bras oscillant (18).
  10. Siège selon la revendication 1 à 9,
    caractérisé en ce que
    l'entraînement motorisé (5) est dans un entraînement linéaire et, de préférence, l'entraînement motorisé (5) présente une tige filetée (9) et, si besoin est, un levier d'entraînement (10) inclinable par rapport à la tige filetée (9).
  11. Siège selon la revendication 1 à 10,
    Caractérisé en ce que
    l'entraînement motorisé (5) est monté sur le dossier (1).
EP15150239.0A 2014-01-13 2015-01-07 Siège doté d'un élément de tête pivotant motorisé Active EP2893844B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15150239T PL2893844T3 (pl) 2014-01-13 2015-01-07 Mebel do siedzenia z zagłówkiem wychylanym za pomocą napędu silnikowego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014100303.9A DE102014100303A1 (de) 2014-01-13 2014-01-13 Sitzmöbel mit motorisch verschwenkbarem Kopfteil

Publications (2)

Publication Number Publication Date
EP2893844A1 EP2893844A1 (fr) 2015-07-15
EP2893844B1 true EP2893844B1 (fr) 2017-12-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP15150239.0A Active EP2893844B1 (fr) 2014-01-13 2015-01-07 Siège doté d'un élément de tête pivotant motorisé

Country Status (3)

Country Link
EP (1) EP2893844B1 (fr)
DE (1) DE102014100303A1 (fr)
PL (1) PL2893844T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106037340A (zh) * 2016-07-07 2016-10-26 浙江国华家具有限公司 一种电动功能沙发头枕机构
CN106579833A (zh) * 2017-01-25 2017-04-26 礼恩派(嘉兴)有限公司 靠背组件以及包括该靠背组件的座椅
CN109674276A (zh) * 2019-01-09 2019-04-26 浙江飞力科技股份有限公司 一种滑动式头靠推背的电动机械伸展装置
DE202021100215U1 (de) * 2021-01-18 2021-02-04 Ciar S.P.A. Verstellvorrichtung für eine Kopfstütze

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006010395U1 (de) * 2006-07-05 2006-08-31 Stanzwerk Wetter Sichelschmidt Gmbh & Co. Kg Sitzmöbel oder Sitz-Liegemöbel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20308124U1 (de) * 2003-05-23 2003-07-17 Hukla Werke Gmbh Sitzmöbel mit Rückenlehne und verstellbarer Kopfstütze
AT511549B1 (de) * 2011-05-27 2013-02-15 Platny Christian Mag Schwenkbeschlag
DE202012009798U1 (de) * 2012-10-15 2012-11-23 Polinova Polstermöbel GmbH & Co. KG Hub-Schwenkbeschlag

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006010395U1 (de) * 2006-07-05 2006-08-31 Stanzwerk Wetter Sichelschmidt Gmbh & Co. Kg Sitzmöbel oder Sitz-Liegemöbel

Also Published As

Publication number Publication date
DE102014100303A1 (de) 2015-07-16
EP2893844A1 (fr) 2015-07-15
PL2893844T3 (pl) 2018-03-30

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