WO2020022929A1 - Mécanisme de soulèvement de repose-pied dans un fauteuil pliant - Google Patents

Mécanisme de soulèvement de repose-pied dans un fauteuil pliant Download PDF

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Publication number
WO2020022929A1
WO2020022929A1 PCT/RU2019/000129 RU2019000129W WO2020022929A1 WO 2020022929 A1 WO2020022929 A1 WO 2020022929A1 RU 2019000129 W RU2019000129 W RU 2019000129W WO 2020022929 A1 WO2020022929 A1 WO 2020022929A1
Authority
WO
WIPO (PCT)
Prior art keywords
footrest
seat
raising
chair
pusher
Prior art date
Application number
PCT/RU2019/000129
Other languages
English (en)
Russian (ru)
Inventor
Михаил Евгеньевич СИДОРОВ
Original Assignee
Михаил Евгеньевич СИДОРОВ
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 Михаил Евгеньевич СИДОРОВ filed Critical Михаил Евгеньевич СИДОРОВ
Priority to EP19841619.0A priority Critical patent/EP3750450A4/fr
Priority to US17/261,398 priority patent/US20210337969A1/en
Priority to EA202000324A priority patent/EA038642B1/ru
Publication of WO2020022929A1 publication Critical patent/WO2020022929A1/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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/035—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest
    • 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
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/0342—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movable backrest-seat unit or back-rest
    • 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
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • 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
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • A47C7/5066—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation
    • A47C7/5068—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation actuated by linkages

Definitions

  • the invention relates to a folding chair and is used to raise the footrest from a vertical position.
  • Folding chairs are known from the prior art that can be transformed from a sitting position to a reclining position or resting reclining position. In this case, the footrest is raised and the back of the chair is tilted back. Changing the position of the back of the chair may be due to the movement of the footrest or the back of the chair may change position independently of other mechanisms.
  • the prior art mechanism folding chair international application W02004034849, IPC A47C7 / 50, publ. 04/29/2004.
  • the known mechanism of the folding chair allows you to rotate and simultaneously push forward the footrest at the right distance through the use of a system of telescopic telescopic profile elements.
  • a disadvantage of the known mechanism is the technological complexity of its manufacture.
  • the prior art chair patent FR2732201, IPC A47C7 / 50, publ. 10/04/1994.
  • Known chair contains a seat and footrest, which are pivotally interconnected.
  • the mechanism for raising the footrest ensures its rotation by 180 degrees so that in the folded position the stand is horizontally under the seat and parallel to it, and in the raised position - in a horizontal position in front of the seat.
  • the known mechanism contains on the sides of the seat two pivotally connected arcuate elements (front and rear), one of which (front) is connected to the footrest, and the other (rear) is connected to the seat.
  • the mechanism comprises a shaft rigidly connected to the rear arcuate elements in the place of their attachment with a footrest.
  • An additional element identical to the rear elements and located parallel to them, is fixed on the shaft in its middle part with one end. At the other end, the additional element is pivotally connected to the gas stop.
  • the gas stop rotates an additional element, which in turn transmits torque to the shaft.
  • the shaft transmits torque to the rear arcuate elements that move the front arcuate elements.
  • Front arcuate the elements rotate the footrest relative to its articulation with the seat in the unfolded position.
  • a disadvantage of the known mechanism is the complexity of its manufacture, since high demands are placed on the rigid joints of the shaft with arched elements due to the large load that is placed on them during operation. In this regard, the known mechanism is also unreliable.
  • the technical result is the expansion of the arsenal of technical means, the creation of an easy to manufacture and reliable mechanism for raising the footrest in a folding chair.
  • a mechanism for raising the footrest in a folding chair, which includes a fixed seat and a rotatable footrest associated with it, including a base, first and second connecting elements, each of which is rigidly connected to the base at one end and the other the end is pivotally connected to the seat, while the connecting elements have a shape, the base part of which is made U-shaped and in the area of attachment with the seat contain an angled bend directed inward from the top and neither her side, wherein at least one connecting element comprises a pivot joint with a pusher disposed in the seat, the axis of the upper side of the angular bend forms an angle with the axis of the pusher is less than 180 degrees.
  • the proposed invention is illustrated by graphic material.
  • FIG. 1 shows a folding chair in which the footrest is in a folded (vertical) position.
  • FIG. 2 shows a folding chair in which the footrest is in the raised position.
  • FIG. 3 shows a connecting element
  • FIG. 4 schematically shows a connecting element and a pusher in the folded position of the footrest.
  • FIG. 5 shows the appearance of a folding chair in which the footrest is in the folded position.
  • FIG. 6 shows the appearance of a folding chair, in which the footrest is in the raised position.
  • the chair contains a fixed seat 1, footrest 2, the back of the chair, legs of the chair 4.
  • Seat 1 is a frame that includes the upper part 5 and the lower part 6.
  • the footrest 2 includes a base 7 and first and second connecting elements 8, one on each side of the seat 1.
  • FIG. 12 In FIG. 12,
  • the first connecting element 8 at one end is rigidly connected to the base 7 at point 9, and the other end is pivotally connected to the seat 1 at point 10.
  • point 10 is the pivot point of the footrest 2.
  • the second connecting element (not shown in Fig.) , is located on the other side of the chair and, like the first one, is rigidly connected to the base 7, and the other end is pivotally connected to the seat 1.
  • the first and second connecting elements are shaped, the base part of which is made in a U-shape and contains a front side 11, rear side 12 shelves and the lower shelf connecting them 13.
  • the rear side shelf 12 contains an inward angular bend 14.
  • the angular bend 14 contains two sides - the upper 17 and lower 18.
  • the first connecting element 8 in the region of the angular bend 14 is pivotally connected at the point 15 with the pusher 16.
  • the upper side 17 forms a shoulder of influence: the distance between the pivot point 10 and the connection point 15 with the pusher 16.
  • the axis of the side 17 forms an angle a with the axis of the pusher 16, which is less than 180 degrees.
  • the pusher 16 may be a gas stop located in the seat between the upper part of the frame 5 and the lower frame
  • the proposed mechanism is associated with the movement of the back of the chair.
  • the second connecting element 8 at point 15 is pivotally connected by a rigid rod to the back of the chair for synchronous transformation.
  • the specified rigid rod interacts with a lever (not shown in Fig.), which allows you to fix its position.
  • the force of the adjustable gas stop and the length of the impact arm are selected so that when unlocking the rigid traction, it helps to lift the footrest more easily and has an optimal slight resistance when folding.
  • the weight distribution of the back and the footrests are in balance and you can easily stop the raising of the footrest and the back leaning back in any comfortable position.
  • the proposed mechanism is not associated with the movement of the back of the chair.
  • the second connecting element is pivotally connected to another independent gas stop.
  • the axial extension or movement of the pusher 16 can be provided by other actuators, for example, including an electric motor.
  • the seat 1 and footrest 2 contain soft upholstery, respectively 19 and 20, which cover their upper and end parts completely.
  • the elements of the proposed mechanism are completely hidden from the eyes of the consumer.
  • the footrest In the raised position, the footrest is separated from the seat at a certain distance, which ensures a comfortable position for the sitting person, in which his feet with the ankle-ankle part lie on this foot.
  • the specified position is ensured by the fact that the sizes of the footrest and the location coordinates of point 10 are optimally selected, at which the person’s feet, with growth not higher than average, will be on the floor, if the footrest is in the folded position, and the feet will lie on the footrest legs, if it is in a raised position. In the raised position of the footrest, only the lower shelf 13 of the connecting element 8 is partially visualized, which fits well with the overall design of the chair (Fig. 6).
  • an angle a which is less than 180 degrees, when lengthening the gas stop provides rotation of the impact arm (side 17) around point 10 only clockwise.
  • the maximum elevated position of the footrest is shown in FIG. 2.6.
  • the seated acts on the lever, as a result of which the rigid traction goes into the released position.
  • the seated one acts on the footrest; it rotates around point 10 to a vertical position.
  • the rigid traction connected with it transfers the back to a sitting position.
  • the chair seated releases the lever and the rigid traction associated with the footrest and back rests in a fixed position.
  • the proposed mechanism is simple to manufacture and reliable in use, while its elements do not violate the integrity of the upholstery visible to the consumer.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Passenger Equipment (AREA)

Abstract

L'invention concerne un dispositif de fauteuil pliant et peut être utilisée pour soulever un repose-pied à partir d'une position verticale. Le résultat technique consiste en un élargissement de l'éventail de moyens techniques, et la création d'un mécanisme de soulèvement de repose-pied pour fauteuil pliant facile à produire et fiable. L'invention concerne un mécanisme de soulèvement de repose-pied dans un fauteuil pliant qui comprend un siège immobile auquel est connecté un repose-pied, comprenant des premier et second éléments de connexion qui sont chacun connectés rigidement depuis une extrémité à une base et connectés de manière articulée au siège par l'autre extrémité; les éléments de connexion ont une forme dont la partie de base est en forme de П, et comprennent dans la zone de fixation avec le siège une courbure angulaire orientée vers l'intérieur avec un côté supérieur et inférieur; au moins un des éléments de connexion comprend une connexion articulée avec un poussoir disposé sur le siège, et l'axe du côté supérieur de la courbure angulaire forme un angle par rapport à l'axe du poussoir de moins de 180 degrés.
PCT/RU2019/000129 2018-07-25 2019-02-27 Mécanisme de soulèvement de repose-pied dans un fauteuil pliant WO2020022929A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19841619.0A EP3750450A4 (fr) 2018-07-25 2019-02-27 Mécanisme de soulèvement de repose-pied dans un fauteuil pliant
US17/261,398 US20210337969A1 (en) 2018-07-25 2019-02-27 Mechanism for raising a footrest in a reclining armchair
EA202000324A EA038642B1 (ru) 2018-07-25 2019-02-27 Механизм поднятия подставки для ног в раскладном кресле

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2018127398A RU2683972C1 (ru) 2018-07-25 2018-07-25 Механизм поднятия подставки для ног в раскладном кресле
RU2018127398 2018-07-25

Publications (1)

Publication Number Publication Date
WO2020022929A1 true WO2020022929A1 (fr) 2020-01-30

Family

ID=66089891

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2019/000129 WO2020022929A1 (fr) 2018-07-25 2019-02-27 Mécanisme de soulèvement de repose-pied dans un fauteuil pliant

Country Status (5)

Country Link
US (1) US20210337969A1 (fr)
EP (1) EP3750450A4 (fr)
EA (1) EA038642B1 (fr)
RU (1) RU2683972C1 (fr)
WO (1) WO2020022929A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR70569E (fr) * 1956-10-05 1959-05-29 Fauteuil transformable en chaise longue
FR2732201A1 (fr) 1995-03-29 1996-10-04 Holding B Marly Sa Dispositif de deploiement d'un repose-jambes
WO2004034849A1 (fr) 2002-10-14 2004-04-29 N.V. De Vroe Fauteuil inclinable equipe d'un mecanisme pour soulever et deployer un repose-pieds

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909213A (en) * 1956-03-12 1959-10-20 Res Interests Ltd Reclining chairs
US3076676A (en) * 1956-06-08 1963-02-05 Anton Lorenz Leg rest mechanism for tilting seating units
GB879229A (en) * 1959-07-02 1961-10-11 Caliquilt Furniture Corp Lounge chair with leg rest
GB1056393A (en) * 1964-08-10 1967-01-25 Stanzwerk Peitz & Company Adjustable lounge chair with pivotable foot rest
EP1066776A1 (fr) * 1999-07-08 2001-01-10 Pascal Berger Fauteuil réglable
ATE298516T1 (de) * 2001-06-29 2005-07-15 Guenter Veith Sitz- und/oder liegemöbel mit beinabstützung
DE102006038736B4 (de) * 2006-08-19 2008-09-04 Kintec-Solution Gmbh Sessel
US10308363B2 (en) * 2016-12-22 2019-06-04 Textron Innovations, Inc. Seat footrest
RU174249U1 (ru) * 2017-01-16 2017-10-09 Петр Павлинович Трудоношин Опора для ног для кресла

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR70569E (fr) * 1956-10-05 1959-05-29 Fauteuil transformable en chaise longue
FR2732201A1 (fr) 1995-03-29 1996-10-04 Holding B Marly Sa Dispositif de deploiement d'un repose-jambes
WO2004034849A1 (fr) 2002-10-14 2004-04-29 N.V. De Vroe Fauteuil inclinable equipe d'un mecanisme pour soulever et deployer un repose-pieds

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3750450A4

Also Published As

Publication number Publication date
EA202000324A1 (ru) 2021-01-19
EP3750450A4 (fr) 2021-11-17
EP3750450A1 (fr) 2020-12-16
RU2683972C1 (ru) 2019-04-03
US20210337969A1 (en) 2021-11-04
EA038642B1 (ru) 2021-09-28

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