EP3925489A1 - Ensemble ergonomique configuré pour fournir un siège statique-dynamique - Google Patents

Ensemble ergonomique configuré pour fournir un siège statique-dynamique Download PDF

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Publication number
EP3925489A1
EP3925489A1 EP20181267.4A EP20181267A EP3925489A1 EP 3925489 A1 EP3925489 A1 EP 3925489A1 EP 20181267 A EP20181267 A EP 20181267A EP 3925489 A1 EP3925489 A1 EP 3925489A1
Authority
EP
European Patent Office
Prior art keywords
seat
seating
rolling
ergonomic
static
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.)
Pending
Application number
EP20181267.4A
Other languages
German (de)
English (en)
Inventor
Denes Levente
Movileanu Bogdan
Balázs BENCSIK
George Flutur
Daniel Cosovanu
Ionut-Danut Danci
Levente Nemes
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.)
"cluster Mobilier Transilvan" Association
Original Assignee
"cluster Mobilier Transilvan" Association
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 "cluster Mobilier Transilvan" Association filed Critical "cluster Mobilier Transilvan" Association
Priority to EP20181267.4A priority Critical patent/EP3925489A1/fr
Publication of EP3925489A1 publication Critical patent/EP3925489A1/fr
Pending legal-status Critical Current

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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
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/0257—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame slidingly movable in the base frame, e.g. by rollers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/027—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with curved rocking members between seat and 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
    • A47C7/62—Accessories for chairs
    • A47C7/72—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C9/00—Stools for specified purposes
    • A47C9/002—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects

Definitions

  • This invention is generally related to the field of ergonomic devices and methods useful for improving posture. More specifically, this invention is related to chair tilting mechanism assemblies and methods and to ergonomic seating assemblies and methods configured to provide static-dynamic seating for users with different body built.
  • the present invention refers to office chairs that provide active and passive seating by a tilting mechanism capable to transform the seat from a fixed position to all-around tilting seat while the user performs various tasks over extended sitting periods.
  • This mechanism offers an ergonomic seating since assures a continuous moderate movement of the lower body similar to a therapeutic ball.
  • the hip, back, shoulder, neck muscles perform work facilitating the blood circulation.
  • the novelty from the technical point of view is that the invention relates to office chairs that provide active and passive seating by a tilting mechanism capable to transform the seat from a fixed position to all-around tilting seat while the user performs various tasks over extended sitting periods.
  • This mechanism offers an ergonomic seating since assures a continuous moderate movement of the lower body similar to a therapeutic ball.
  • the hip, back, shoulder, neck muscles perform work facilitating the blood circulation.
  • Switching from passive to active seating is controlled by microcontroller capable to slow down the seat movement or to fix completely the seat by a brake system.
  • the static-dynamic seating can be regulated in an intelligent way by the chair user, by the safety and health requirements for work with display screen equipment, by sensors, or by any mix of them.
  • the energy need to operate the brake and control system is assured by an electric generator fixed to one or more axles of the rolling mechanism and a battery for energy storage.
  • This system provides the static-dynamic seating function in an independent way, producing the required energy in the dynamic state when the user rotates the axles by the equilibration movements and generates electric energy.
  • the present invention ensures static-dynamic seating through a rolling mechanism.
  • a chair tilting mechanism assemblies and methods and more particularly, but not by way of limitation, this invention relates to ergonomic seating assemblies and methods configured to provide static-dynamic seating for users. Switching from passive to active seating is controlled through a microcontroller capable to slow down the seat movement or to fix completely the seat by a brake system.
  • the static-dynamic seating can be regulated in an intelligent way by the chair user depending on the safety and health requirements for work with display screen equipment, by sensors, or by any mix of them and the energy needed to operate the brake and control system is assured by an electric generator fixed to one or more axles of the rolling mechanism and a battery for energy storage.
  • This invention relates to a chair seating mechanism assembly, more specifically a bidirectional seat rolling assembly capable to operate both in static and dynamic modes. Shifting from static to dynamic mode is assured by a brake system able to slow down the rolling movements or completely stop.
  • the switch to dynamic state can be controlled by the pressure sensors placed in the seat cushion, by the user with a remote control, or automatically by preset function modes.
  • the electric DC generator or generators placed on rolling axles provide the necessary electric power to operate the microcontroller.
  • the electric current is generated during the dynamic mode and stored in the battery placed near the microcontroller. Due to the established assembly the control system is independent of external energy sources.
  • the developed seat mechanism ensures a more comfortable seating since in the dynamic mode the user makes balancing movements - similar to therapeutic ball seating - and as a consequence force many of the body muscles to work which assist thereafter the blood circulation.
  • FIG. 1 , 2 and 3 illustrate how the bidirectional rolling movements of the seat are realized: two, perpendicularly positioned rolling system with a curvilinear rolling path assure the spatial motion of the seat pane (1).
  • Seat pane (1) is fixed mechanically to two upper arched tubes or hollow sections (5) which guide the seat (1) in the back and forth rolling motion.
  • the upper roller supports (2) for the back and forth rolling are secured to the lower lateral sliding platform (3).
  • the sliding platform (3) having two pairs of rollers on each lateral sides enclose the two lower arched tubes or hollow sections (4) for lateral rolling guide.
  • the lower arched tubes or hollow sections (4) are fixed to the base plate (6) which is connected to the gas cylinder through connector (14).
  • the upper roller supports (2) incorporate a roller pair each, where the upper rollers (7) are idle rollers with bearings, and the lower rollers (8) are driven rollers with bearings.
  • the brake system (12) is connected the one of the driven lower rollers (8) which is capable to slow down or stop completely the upper back and forth rolling assembly.
  • Sliding platform (3) incorporates the four pair of rollers on the corners where the upper rollers (9) are idle rollers with bearings and the lower rollers (10) are driven rollers also with bearings.
  • a brake system (15) is connected to one of the driven lower rollers (10) which is capable to slow down or stop completely the lower lateral rolling assembly.
  • Brake systems (12) and (15) can control the movement of driven rollers (8) and (10) mechanically, hydraulically, pneumatically or electronically.
  • a microcontroller (13) fixed to the base plate (6) controls the back and forth and lateral motion of the seat mechanism.
  • the electric energy required for microcontroller operation is provided by the DC generator (11).
  • the seat pane (1) In the dynamic mode, the seat pane (1) is in continuous motion spinning the axles the DC generators (11) are connected to. The generated energy is stored in the rechargeable battery (16).
  • the microcontroller's (13) task is to detect the seat pane position and/or the signals from the pressure sensors (17) and to control brake systems (12) and (15).
  • FIG. 4 shows the concept model of the chair seat mechanism assembly
  • FIG. 5 and 6 illustrate the differences between the two rolling systems: in the first case the roller pairs (7) and (8) fixed to the support (2) enclose the arched tube (5) and the brake disc (20) with caliper (19) are connected to axle (18). In the second case, runners (21) are guided by the hollow sections (5). Runners (21) are fixed directly to the sliding platform (3) and seat pane (1).
  • FIG. 7 and 8 are axonometric illustration of the two solutions.
  • FIG 9 presents the operating principle of the chair seating mechanism: due to prolonged or asymmetrical sitting, pressure sensors (17) send a signal to microcontroller (13) which releases the brake system (12) or (15), or both, and the chair switches to dynamic mode with continuous rolling in one or two directions. Depending on the body built of the users or for any other reason, the running speed is also under control.
  • the brake systems (12) and (15) with the brake disc (20) and caliper (19) as well as the DC generator (11) are fixed to the driven axles (18).
  • the electric energy produced by the DC generator (11) is stored in the rechargeable battery (16).
  • Microcontroller (13) uses the necessary power for operation from the connected rechargeable battery (16).
  • the novelty elements are given by the provision of an active and passive seating by a tilting mechanism capable to transform the seat from a fixed position to all-around tilting seat while the user performs various tasks over extended sitting periods.
  • This mechanism offers an ergonomic seating since assures a continuous moderate movement of the lower body similar to a therapeutic ball.
  • the dynamic seating the user's body is under a constant balancing state, the hip, back, shoulder, neck muscles perform work facilitating the blood circulation.
  • Switching from passive to active seating is controlled by microcontroller capable to slow down the seat movement or to fix completely the seat by a brake system.
  • the static-dynamic seating can be regulated in an intelligent way by the chair user, by the safety and health requirements for work with display screen equipment, by sensors, or by any mix of them.
  • the energy need to operate the brake and control system is assured by an electric generator fixed to one or more axles of the rolling mechanism and a battery for energy storage.
  • This system provides the static-dynamic seating function in an independent way, producing the required energy in the dynamic state when the user rotates the axles by the equilibration movements and generates electric energy.

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  • Chairs Characterized By Structure (AREA)
  • Braking Arrangements (AREA)
EP20181267.4A 2020-06-19 2020-06-19 Ensemble ergonomique configuré pour fournir un siège statique-dynamique Pending EP3925489A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20181267.4A EP3925489A1 (fr) 2020-06-19 2020-06-19 Ensemble ergonomique configuré pour fournir un siège statique-dynamique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20181267.4A EP3925489A1 (fr) 2020-06-19 2020-06-19 Ensemble ergonomique configuré pour fournir un siège statique-dynamique

Publications (1)

Publication Number Publication Date
EP3925489A1 true EP3925489A1 (fr) 2021-12-22

Family

ID=71120005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20181267.4A Pending EP3925489A1 (fr) 2020-06-19 2020-06-19 Ensemble ergonomique configuré pour fournir un siège statique-dynamique

Country Status (1)

Country Link
EP (1) EP3925489A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220312970A1 (en) * 2020-10-01 2022-10-06 Science Road International Inc. Rocking chair

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2992597B2 (ja) * 1996-09-27 1999-12-20 裕弘 上原 座位姿勢の変化に追従する机・椅子セット
EP1090568A2 (fr) * 1999-04-01 2001-04-11 Michael Stips Dispositif de siège
DE202007016488U1 (de) * 2007-11-06 2008-02-21 Prömm, Felix Tobias Sitzvorrichtung
CN107692630A (zh) * 2017-11-16 2018-02-16 钦州学院 一种新型健身发电座椅

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2992597B2 (ja) * 1996-09-27 1999-12-20 裕弘 上原 座位姿勢の変化に追従する机・椅子セット
EP1090568A2 (fr) * 1999-04-01 2001-04-11 Michael Stips Dispositif de siège
DE202007016488U1 (de) * 2007-11-06 2008-02-21 Prömm, Felix Tobias Sitzvorrichtung
CN107692630A (zh) * 2017-11-16 2018-02-16 钦州学院 一种新型健身发电座椅

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220312970A1 (en) * 2020-10-01 2022-10-06 Science Road International Inc. Rocking chair
US11540635B2 (en) * 2020-10-01 2023-01-03 Science Road International Inc. Rocking chair

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