EP3381330A1 - Dispositif de dossier auto-réglable amélioré - Google Patents

Dispositif de dossier auto-réglable amélioré Download PDF

Info

Publication number
EP3381330A1
EP3381330A1 EP16868075.9A EP16868075A EP3381330A1 EP 3381330 A1 EP3381330 A1 EP 3381330A1 EP 16868075 A EP16868075 A EP 16868075A EP 3381330 A1 EP3381330 A1 EP 3381330A1
Authority
EP
European Patent Office
Prior art keywords
backrest
plate
self
adjustable
hubs
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.)
Withdrawn
Application number
EP16868075.9A
Other languages
German (de)
English (en)
Other versions
EP3381330A4 (fr
Inventor
Rafael Blasco Andreu
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority claimed from PCT/ES2016/070830 external-priority patent/WO2017089638A1/fr
Publication of EP3381330A1 publication Critical patent/EP3381330A1/fr
Publication of EP3381330A4 publication Critical patent/EP3381330A4/fr
Withdrawn legal-status Critical Current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
    • A47C16/00—Stand-alone rests or supports for feet, legs, arms, back or head
    • A47C16/005—Back-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
    • A47C1/14—Beach chairs ; Chairs for outdoor use, e.g. chairs for relaxation or sun-tanning
    • A47C1/146—Beach chairs ; Chairs for outdoor use, e.g. chairs for relaxation or sun-tanning of legless type
    • 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
    • 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
    • A47C7/48—Support for the head or the back for the back of freely-rotatable type

Definitions

  • the present invention relates to a self-adjustable backrest device, which has an automatic means of position adaptation for the user's comfort. It is applicable to all types of seats: chairs, sofas, easy chairs, wheel chairs, automotive seats, etc, and even as an independent element to be placed on the floor.
  • patent ES2118081T3 refers to a chair comprising a seat and backrest connected to each other, characterised in that the backrest presents certain movement in being associated with two horizontal shafts, one on which it swivels, and another that limits its movement.
  • Patent US2005035636A1 discloses a chair of the type comprising a seat and backrest connected to each other, being self-adjustable, characterised by comprising a backrest formed by back-support plate, supported by a horizontal shaft joint provided on a support, such joint being at a certain distance from the base of the backrest, preferably in an area at an average height of the backrest, and has a rotation spring cushioned and limited by a rotation limit system, and when the plate is in resting position, it is in an approximately vertical position.
  • the plate, the support and the joint are included in a semi-rigid casing.
  • Patent WO9427472A1 describes a chair comprising a seat and backrest connected to each other characterised by comprising a backrest / back support plate, supported by a horizontal shaft joint.
  • Patent ES2255466A1 refers to a self-adjustable chair characterised in that it comprises a continuous single piece that serves as backrest and seat and is supported by a joint.
  • Patent US6435615B1 discloses a chair comprising a seat and backrest connected to each other, characterised in that the backrest is supported by a horizontal shaft joint.
  • Patent DE20113075U1 refers to a chair, which comprises seat and backrest, characterised in that the backrest comprises an arm with two shafts, a lower one that associates it with the seat and another upper one that regulates the position of the plate on which the user rests.
  • Patent US2005168044A1 describes a seat backrest that has a lower extensions suitable to be pushed into the ground, such as at the beach, and serves as backrest for users sitting on the ground.
  • Patent WO0117398A1 discloses a self-adjustable seat that is supported on the ground with an adaptation system not comprising a horizontal shaft.
  • the invention relates to a self-adjustable backrest device, which protects the lumbar area and relaxes the pressure on the buttocks.
  • the backrest is self-adjustable, which means that it needs no control or command.
  • the device referred to supplements a seat surface such that the seat surface exists previously and what is covered by the object of this invention is that it adds a backrest or improves the already existing one.
  • the self-adjustable backrest assembly comprises a mobile plate on which the user rests, wherein said plate swivels on a horizontal shaft that passes through a first set of hubs connected to the plate, that shaft being associated with a second set of hubs connected to a support that may be the backrest itself of the chair or easy chair on which the self-adjustable backrest is going to be used, in which case it will be referred to as pre-existing backrest, or it may be a fixed backrest which forms part of the device, in which case it will be referred to as backrest of the device.
  • At least one of the sets of hubs is adjustable in height and thus, height variation of the first set of hubs will vary the relative point on which the plate swivels altering the lever while height variation of the second set of hubs will alter the height at which the plate is located.
  • Hub refers herein to any element that serves as support to the shaft allowing its rotation.
  • the backrest of the device may have different dimensions based on, among other things, the surface on which it should be supported.
  • the plate has an initial position, in the absence of forces applied by the user or at his or her will, and a balancing run that can be limited by a maximum position and a minimum position.
  • the ideal initial or resting position is preferably close to the vertical line although that can vary depending on the angle of the pre-existing backrest or support on which the backrest of the device rests.
  • This resting position is obtained thanks to the action of a rotation spring in the resting position of which the plate is in an approximately vertical position where said rotation spring can be cushioned for user comfort.
  • the plate While not being used, the plate is forced into the resting position by the rotation spring, which is capable of overcoming the weight of the plate and bringing it to the initial position and holding it in that position, but allowing it to yield under the pressure exerted by the user when sitting down without the user perceiving an ejection force.
  • the run of the plate can have a limit.
  • the assembly of mobile plate, first and second set of hubs, shaft and the support will be included in a is semi-rigid casing so that the user will not see these mechanical elements and the risk of getting pinched is reduced.
  • the lower part of the plate may incorporate an elastic element which closes the space between the plate and the seat surface, reducing the risk of pinching an object or user body part which may be inserted therein.
  • This elastic element will usually connect the seat surface to the plate, and may be made of a rubber fabric which, in addition, can help the plate to return to the vertical position, whereby two benefits are achieved with a single element.
  • the assembly comprising the plate, the first and second set of hubs, the shaft and the support is suitable to be associated with a chair, easy chair or sofa, among others, which can include car seats, which are more complex.
  • the user will sit on a seat surface, that is approximately horizontal and pre-existing, and will support the back on the self-adjustable backrest device.
  • the height of the shaft will be adjustable and will be arranged at between 12 and 33 cm above the user's seat surface, and preferably between 18 and 27 cm.
  • the self-adjustable backrest may incorporate various accessory elements to stay affixed and prevent it from moving under the user's weight.
  • the device can incorporate suitable pegs to dig into soft ground such as earth or sand.
  • Another possible embodiment can incorporate non-skid legs to affix it to smooth surfaces.
  • the device can incorporate a flap with which the user affixes the support with his or her own weight, which will be useful when, for example, the user wants to read in bed and lean on the device.
  • the seat device may have armrests or any other element without altering the nature of the invention.
  • the plate may have a curvature, cushioning, flexibility, rigidity, or any other measure to increase user comfort.
  • the material will be wood, plywood, plastic, metal, fabric, wicker, or any other.
  • the plate may be separated from the shaft to facilitate the tasks of cleaning, repair, or adjustment, among others.
  • FIGURE 1 shows the invention in an embodiment which uses the backrest itself of the chair where the device is used as a fixed backrest and thus we find the mobile plate (1), the first set of hubs (2) connected to the mobile plate, the shaft (3) and the second set of hubs (4) connected to the support, in this case a pre-existing backrest (5).
  • the seat surface (10), in this case a chair, is also shown.
  • FIGURE 2 graphically shows an adjustable backrest device that does incorporate a fixed backrest in this case prepared to lean on the backrest of an armchair, with the mobile plate (1), the first set of hubs (2), the shaft (3), the second set of hubs (4) and the backrest of the device (6).
  • FIGURE 3 shows an embodiment wherein the backrest of the device (6) that presents a triangular cross-section, incorporates pegs (7) for anchoring the backrest to a soft and penetrable ground, such as earth or sand.
  • FIGURE 4 shows an embodiment wherein the backrest of the device (6) incorporates bases (8) suitable for affixing the device onto smooth ground.
  • FIGURE 5 shows an embodiment wherein the backrest of the device incorporates a flap (9) between the seat surface (10), in this case the floor, and the user such that, in this way, the user, prevents the movement of the device with his or her own weight.
  • the self-adjustable backrest that is supplemented with a seat surface comprising: A mobile plate (1) having a sufficient size to cover the user's back from the coccyx to the area of the shoulder blades.
  • a rotation spring that keeps the plate in an approximately vertical position when it is in resting position, i.e., when there is no external force acting thereupon.
  • the device is resting on a seat surface (10), such as a bed or the floor.
  • the first set of hubs (2) that is adjustable in height is connected to the mobile plate.
  • the shaft (3) is also associated with the second set of hubs (4) that are connected to the backrest of the device (6).
  • the second set of hubs is further height-adjustable, and, by varying its height, the height of the plate and the shaft are modified in relation to the seat surface.
  • the shaft on which the plate swivels is located at a height of 23 cm, the normal height being between 12 and 33 cm from the seat surface and, preferably between 18 and 27 cm
  • the action of the first and second set of hubs, and the horizontal shaft associating them, allows the mobile plate to swivel on the backrest of the device such that the greater the force exerted by the user on the upper part of the mobile plate, the greater the action on the lumbar area, reducing the pressure on the buttocks being lifted.
  • the self-adjustable backrest device to prevent the movement of the self-adjustable backrest device due to the horizontal force exerted by the user when leaning thereon, it comprises a flap by way of brace on which the user sits which, with his or her weight, prevents the assembly from moving.
EP16868075.9A 2015-11-23 2016-11-21 Dispositif de dossier auto-réglable amélioré Withdrawn EP3381330A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201531301U ES1147634Y (es) 2015-11-23 2015-11-23 Dispositivo de asiento autoajustable
PCT/ES2016/070830 WO2017089638A1 (fr) 2015-11-23 2016-11-21 Dispositif de dossier auto-réglable amélioré

Publications (2)

Publication Number Publication Date
EP3381330A1 true EP3381330A1 (fr) 2018-10-03
EP3381330A4 EP3381330A4 (fr) 2019-06-19

Family

ID=54782361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16868075.9A Withdrawn EP3381330A4 (fr) 2015-11-23 2016-11-21 Dispositif de dossier auto-réglable amélioré

Country Status (4)

Country Link
EP (1) EP3381330A4 (fr)
CN (1) CN108289548A (fr)
ES (1) ES1147634Y (fr)
MA (1) MA43316A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109008378B (zh) * 2018-09-13 2024-04-05 安吉县盛信办公家具有限公司 一种适用于座椅的活动支撑体连接结构
CN110326923A (zh) * 2019-08-09 2019-10-15 安吉县南方家私有限公司 一种靠背转动结构及座椅

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR637814A (fr) * 1927-07-20 1928-05-09 Dispositif permettant l'inclinaison et l'immobilisation par freinage, en n'importe quel point de sa course, du dossier d'un siège et facilement manoeuvré par la personne assise sur ce siège
US2054557A (en) * 1935-05-06 1936-09-15 Roy A Cramer Adjustable chair
US2524624A (en) * 1946-08-14 1950-10-03 Roy A Cramer Resilient chair back mounting
US4908891A (en) * 1988-09-26 1990-03-20 Leon Blagg Stable back rest
JPH04133756U (ja) * 1991-06-04 1992-12-11 株式会社イトーキクレビオ 椅子における背もたれの傾動支持装置
US5364163A (en) * 1993-07-12 1994-11-15 Hardison Michael D Adjustable leg fishing chair
JP3742834B2 (ja) * 2001-06-11 2006-02-08 テイ・エス テック株式会社 操作レバー
RU2199258C1 (ru) * 2002-02-14 2003-02-27 Быков Алексей Алексеевич Устройство для сидения
HK1064859A2 (en) * 2004-06-21 2005-01-14 Yu Yeung Tin Synchronous coordinate system of back of chair.
US6959964B1 (en) * 2004-07-23 2005-11-01 Otto Zapf Portable backrest structure
US20060284461A1 (en) * 2005-05-02 2006-12-21 Machael Jay R Chair with recline control mechanism, recline limit control and back tilt mechanism
US7837265B2 (en) * 2006-03-24 2010-11-23 Hni Corporation Reclining chair with enhanced adjustability
KR101014493B1 (ko) * 2008-08-20 2011-02-14 기아자동차주식회사 자동차 시트용 사이드볼스터 장치
CN101889779A (zh) * 2009-05-19 2010-11-24 上海市嘉定区南翔小学 多功能办公室座椅
CN201436914U (zh) * 2009-05-26 2010-04-14 侯升助 自动调整靠背倾仰角度的椅座
CN201523866U (zh) * 2009-11-06 2010-07-14 杨文煜 旋转式保健小靠背的座椅
CN201822334U (zh) * 2010-04-08 2011-05-11 福建省浦城县常青工艺品有限公司 两用式桌椅
CN201691435U (zh) * 2010-06-24 2011-01-05 励盼攀 一种椅子
EP2670371A1 (fr) * 2011-02-01 2013-12-11 Garcia França, Jefferson Améliorations apportées à un mécanisme inverseur appliqué à l'essieu arrière d'une chaise roulante
CN201958261U (zh) * 2011-02-25 2011-09-07 袁荣友 一种多功能椅子
CN202020082U (zh) * 2011-03-25 2011-11-02 卓岳股份有限公司 椅背支撑连动装置
CN202051307U (zh) * 2011-04-22 2011-11-30 泰桦家具股份有限公司 椅背调整机构
US8465090B1 (en) * 2011-06-06 2013-06-18 Joel Brandon O'Connor Chair for use during wade fishing
US8627523B2 (en) * 2012-05-21 2014-01-14 Todd Kaiser Portable variable-position headboard apparatus
CN202932459U (zh) * 2012-11-22 2013-05-15 蒋浩 多功能座椅
KR20150046490A (ko) * 2013-10-22 2015-04-30 차민수 의자
DE202014101592U1 (de) * 2014-04-04 2014-06-30 Wilkhahn Wilkening + Hahne Gmbh + Co. Stuhl
KR101505670B1 (ko) * 2014-05-02 2015-03-25 이지영 의자용 등받이 연결구
DE202015100115U1 (de) * 2015-01-13 2015-03-24 Anette Larsson Lehnenanordnung
CN105029935B (zh) * 2015-07-28 2018-03-23 陈俊 一种旋转座椅

Also Published As

Publication number Publication date
EP3381330A4 (fr) 2019-06-19
MA43316A (fr) 2018-10-03
CN108289548A (zh) 2018-07-17
ES1147634U (es) 2015-12-14
ES1147634Y (es) 2016-03-07

Similar Documents

Publication Publication Date Title
US8272691B2 (en) Resilient lower-back supporting device capable of vertical adjustment along with backrest of chair
US5486035A (en) Occupant weight operated chair
US20140217795A1 (en) Reclinable seating apparatus and method
US9357849B2 (en) Dynamic lumbar support for a chair
US20040195882A1 (en) Seats
US20050179291A1 (en) Adjustable cross-legged support seat
US8459738B2 (en) Portable backrest for a person seated sideways on a sofa
CN105592752A (zh) 座椅
CN111297107A (zh) 自动适应腰部的座椅
CN107264363A (zh) 独立的座垫大腿支撑件
EP3381330A1 (fr) Dispositif de dossier auto-réglable amélioré
KR200421443Y1 (ko) 보조등받이가 구비된 의자
US8469449B2 (en) Automatically adjustable chair structure
US20180344038A1 (en) Self-adjustable backrest device
KR100886181B1 (ko) 장애인용 의자
US6767060B2 (en) Article of furniture having a support member with an adjustable contour
US8371653B2 (en) Structure for legless leisure chairs with armrests
US20110095583A1 (en) Adjustable back cushion structure
US20200237100A1 (en) Self-adjustable backrest device
KR101069192B1 (ko) 가슴받이와 팔받이 및 발받침으로 사용가능한 상하 회동형 신체지지부를 구비한 의자
KR102189736B1 (ko) 가슴받이가 구비된 몸체부착형 작업용 의자
CN215076922U (zh) 自适应滑动支撑型椅子
KR200314480Y1 (ko) 전후 회전 머리받침
US20130134755A1 (en) Automatic tilting of a support surface on a support device
KR101374075B1 (ko) 자중에 의해 허리지지력이 강화되는 의자

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180521

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
RAV Requested validation state of the european patent: fee paid

Extension state: MA

Effective date: 20180521

A4 Supplementary search report drawn up and despatched

Effective date: 20190520

RIC1 Information provided on ipc code assigned before grant

Ipc: A47C 16/00 20060101AFI20190514BHEP

Ipc: A47C 1/024 20060101ALI20190514BHEP

Ipc: A47C 7/44 20060101ALI20190514BHEP

Ipc: A47C 7/48 20060101ALI20190514BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200122

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20230601