EP3212039B1 - Büro-, arbeits- und freizeitstuhl sowie nachrüstsatz für einen stuhl oder eine sitzfläche zum erzeugen von unterschwelligen bewegungen der darauf sitzenden person - Google Patents

Büro-, arbeits- und freizeitstuhl sowie nachrüstsatz für einen stuhl oder eine sitzfläche zum erzeugen von unterschwelligen bewegungen der darauf sitzenden person Download PDF

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Publication number
EP3212039B1
EP3212039B1 EP15801247.6A EP15801247A EP3212039B1 EP 3212039 B1 EP3212039 B1 EP 3212039B1 EP 15801247 A EP15801247 A EP 15801247A EP 3212039 B1 EP3212039 B1 EP 3212039B1
Authority
EP
European Patent Office
Prior art keywords
seat
office
wobble
work
air chambers
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
EP15801247.6A
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German (de)
English (en)
French (fr)
Other versions
EP3212039A1 (de
Inventor
Andreas Reinhard
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.)
Iii-Solutions GmbH
III Solutions GmbH
Original Assignee
Iii-Solutions GmbH
III Solutions GmbH
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Publication date
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Publication of EP3212039A1 publication Critical patent/EP3212039A1/de
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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
    • A47C9/00—Stools for specified purposes
    • A47C9/002—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects
    • 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
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/22—Chairs or stools with vertically-adjustable seats with balancing device, e.g. by spring, by weight
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/008—Use of remote controls
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/12—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
    • A47C31/126—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for chairs
    • 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
    • A47C7/02—Seat parts
    • A47C7/025—Springs not otherwise provided for in A47C7/22 - A47C7/35
    • 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
    • A47C7/02—Seat parts
    • A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
    • 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
    • A47C7/02—Seat parts
    • A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
    • A47C7/142—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions by fluid means
    • 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
    • A47C7/02—Seat parts
    • A47C7/34—Seat parts with springs in compression, e.g. coiled
    • 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
    • A47C7/02—Seat parts
    • A47C7/35—Combinations of different types of springs; Adjustable springs; Attachment of springs to other springs or to the base frame ; Springs for seat parts not provided for in other groups of this subclass
    • 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
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
    • 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
    • A47C9/02—Office stools not provided for in main groups A47C1/00, A47C3/00 or A47C7/00; Workshop stools

Definitions

  • the present invention relates to an office, work and leisure chair, which offers a significantly improved seating comfort, especially for persistent seating periods by stimulating the person sitting on it by means of functional and user-defined pneumatically activated mechanics to passively triggered, subliminal, subdued movements.
  • the invention also relates to a retrofit kit for mounting on an existing chair or on any seat pad or surface, for generating subliminal movements of the person sitting thereon.
  • a scientific study published in the American Journal of Physiology at the University of Tel Aviv shows that the human body applies more and faster fat at those sites where pressure and / or traction is regularly applied.
  • Adipocytes fat cells
  • High-tech microscopy was used to investigate how the adipocytes change with mechanical pressure.
  • the adipocytes were reduced in size by cyclic stretching.
  • the state of the art covers a variety of chair and especially office, work and leisure chair constructions, all of which seek to optimize seating comfort while allowing for healthy sitting.
  • the typical office, work and leisure chair has a chassis with several radial star-shaped legs or a horizontal ring on which are mounted on an additional vertical axis rotatable rollers, so that the chair in principle can roll in all directions.
  • the typical office, work and leisure chair on a stable seat, which is rotatably mounted about a vertical axis on the chassis and is adjustable in height, which is stationary in itself. The buttocks and the back of the seated person are hardly moved on such a chair, which is detrimental to the circulation and not least the well-being.
  • the office chairs are also equipped with backrests, and often also with armrests.
  • the controls for the adjustment of the seat height, the steepness of the backrests, the height of the armrests, etc. are all under the seat and the corresponding levers are not visible when sitting on the chair.
  • a more ergonomic office, work and leisure chair model is available in DE 10 2005 033 052 A1 disclosed. It shows a chair whose seat is located on a tilting device.
  • This tilting device is associated with a locking device in the form of a ring-tube air cushion, such that the tilt angle of the tilting movements can be adjusted via the air cushion.
  • One possible embodiment relates to several air cushions, which for the purpose of limiting or deactivating the tilting movements are individually alspumpbar.
  • the seated person can inflate the air cushion via an air pump, or let the air contained in it escape via a vent valve also below the seat.
  • the like is from a therapeutic seating device US 2008/0079301 A1 known. Shown is a device for increasing the perception of body movements and health, especially for people with neuromuscular diseases, such as cerebral palsy or scoliosis.
  • the methodology of this system is similar to that of [0005] designed with a support structure, a motion control unit and a seat pad. By the device structure two perpendicular axes are given, around which the seat pad is rotatably mounted. In order to dampen these movements, in turn, a device for damping is given, which consists of an annular, inflatable element. The air volume contained in it can be regulated by a pump and a drain valve below the seat cushion.
  • the subject device here shows a very complex structure with a variety of items for the realization of variably damped tilting movements of the person sitting on the chair.
  • a device is off WO 2007/105960 A1 the disclosure of which discloses a seat device with a centrally mounted seat pad.
  • This seat support is underlaid either two or four to the central storage mutually opposite or orthogonal arranged air cushion, which are interconnected, such that air is interchangeable between them for a definable along the axes of rotation damping setting.
  • a seat pad for retrofitting a chair which has two concentrically arranged air chambers.
  • a seat surface of the seat cushion receives two degrees of freedom of movement, which allow a wobbling motion.
  • the aforementioned documents essentially represent the state of the art regarding a pneumatic realization of mobility during sitting.
  • a person can perform on such a seat device about two axes superimposed tilting movements, which are damped by air cushions.
  • the person concerned can regulate the volume of air or the pressure manually via a pump or a valve, which are actuated below the seat pad.
  • these solutions do not lead to a satisfactory seating behavior.
  • Numerous studies prove that people sitting for a long time are extremely sluggish and hardly ever change their seat settings. Such a person will rather adjust the degree of damping of the disclosed in the previous documents air cushion once and get used to the appropriate degree of tilt.
  • the object of the present invention is therefore to provide an office, work and leisure chair for stimulating subliminal movements, which, in order to achieve the goals of [0001], in particular mechanical-biological stimulation, breaks new ground for long-term healthy sitting.
  • the chair is designed to take sitting to a whole new level and lead away from inactive sitting to an inevitably dynamic, stimulating and blood circulation in the body vessels of the buttocks, back and thighs.
  • the inactivity of the pelvic area, enforced by the currently available office chairs, is to be replaced by a natural and inevitably or inevitably adjusting pelvic movement to keep the entire musculature active in the buttocks and pelvis, as well as indirectly in the back area.
  • This pelvic movement leads to a coupled movement (coupled motion) of the spine, acting on these torsional and bending forces, especially in the lumbar region.
  • the office, work and leisure chair is to induce the movements of the seated person by means of adaptive load-dependent kinematics subliminal inevitably, so that the seated person mostly or optionally aware of either consciously and thus is not affected in their concentration.
  • the person should therefore inevitably constantly perform subliminal movements.
  • the working concentration should be increased by the inevitably subliminally active sitting on the average mass.
  • the induction of these subtle movements is therefore to be ensured by reliable means which do not fail in view of the work or other mental demands of the person concerned.
  • the above-mentioned goals are thus to be ensured in the long term and sustainably.
  • the office, work and leisure chair should correspond to an individualizable user profile whose setting options can actually and regularly be used.
  • the office, work and leisure chair should be an indirectly active chair, and not a stationary structure, and yet it should largely, in some cases even complete, be autonomous from artificial energy sources and therefore be used everywhere.
  • an office, work and leisure chair for generating subliminal movements of the person sitting thereon, with a base with exposed rollers, at least one gas spring support with resting thereon interface plate for the seat plate with seat cover and a backrest, characterized in that the seat plate is mounted wobble on a pneumatic wobble cushion, which has a plurality of interconnected via connecting hoses deformable air chambers, and which is located on an elastically deformable hollow body, which acts at each Niedestêtsum on the chair as a pump for inflating the air chambers , and with each rising from the chair due to its elastic expansion refills with air, with a pump hose with a one-way valve from the hollow body in at least one of the air chambers, for repumping any leakage losses, and wherein connecting hoses between the air chambers mi t valves are equipped which open mechanically, hydraulically, pneumatically or electrically. and are lockable, so that the wobble path of the seat plate and the damping of the wobble movement are variable.
  • the object is achieved by a retrofit kit for mounting on the non-wobble seat of a conventional chair or on any seat for generating subthreshold movements of the person sitting on the retrofit kit, which is characterized in that the retrofit kit has a wobble seat plate mounted by this rests on a plurality of interconnected via flexible hoses deformable air chambers, which rest circularly around the center of the seat plate on an elastically deformable hollow body, which acts at each Niedestmin on the chair as a pump for inflating the air chambers, and each time he gets up from the chair due to his elastic expansion again filled with air, with a pump hose with one-way valve from the hollow body in at least one of the air chambers, for repumping any leakage losses, and wherein the connecting tubes between the air chambers with valves equipped, which are mechanically, hydraulically, pneumatically or electrically metered opened and closed, so that the wobble path of the seat plate and the damping of the wobble can be varied, and wherein the bottom plate
  • FIG. 1 The structure of this office, work and leisure chair opens up to create subliminal movements of the seated person, as shown here by means of an exploded view, which provides insight into the essential parts.
  • a foot 1 At the bottom you can see a foot 1 and then a gas spring support 2, which is centrally located here, but can also be arranged laterally displaced, for example, at the very back, under the backrest 22 of the office, work and leisure chair to the area below the seat 19 to keep free. Thanks to the gas spring, the gas spring support 2 is height adjustable in the traditional manner.
  • the spider 1 may be formed by a star wheel with five or more arms, at the ends of each an unlocked roller 4 is mounted.
  • the base 1 runs down into a circumferential ring 3, where a number of steered rollers 4 are stored. This ensures that the office, work and leisure chair can be rolled in all directions very easily and with minimal resistance.
  • an interface plate 5 can be seen as a support plate on which all components for the tumble of the seat are constructed. Under this interface plate 5, a chair mechanism may be arranged so that the interface plate 5 on this chair mechanism forward and backward on the gas spring support 2 is displaceable.
  • This hollow body 14 has a bellows-like connection 60 to its conical top 15, wherein this cone may be formed at a much larger angle at its tip than shown here, so that the height of the cone measures only about 2cm.
  • the hollow body 14 may be made even flat above, but a conical shape proves to be advantageous.
  • the hollow body 14 is equipped with a one-way valve 57 so that it can suck in air from the environment. Another, acting in the reverse direction one-way valve leads via a hose 12 in the lying above the hollow body 14 hose ring 16.
  • the hollow body 14 is equipped with a pressure relief valve 58.
  • the conical top 15 of the hollow body 14 is axially pressed against the bottom plate 61, with elastic folding of the bellows-type compound 60 until the conical top 15 with its edge on the Base plate 61 rests.
  • this hollow body 14 acts as a pump and as a result of the reduction of its volume, it pumps air through the connecting tube 12 in the hose ring 16.
  • the elastic bellows connection 60 which acts as a spring, the conical top 15th of the hollow body 14 back up to its original position, with lifting all on top of her resting elements.
  • the wobble pad is formed by an annular tube ring 16, similar to an inflatable float ring or tire tube.
  • This hose ring 16 has four partitions 17 in the example shown, which divide it into four compartments 18 as air chambers. Due to the more or less pronounced conical shape of the hollow body 14, the hose ring 16 is centered and held on the cone. This proves to be the advantage of a cone shape.
  • Each of these four hose connections 27 connects two adjacent compartments 18 and projects as an arc towards the center in the remaining free space in the center of the hose ring 16.
  • hose connections 27 serve in cooperation with special valves to block an air exchange between these compartments 18 or to allow dosed, as will be described in detail later.
  • skirt 63 which projects from the seat plate 21 down, in the assembled state of the chair to a piece over the interface plate 5 down so that the whole construction for the tumble capacity of the seat plate 21 is concealed, even with a maximum wobble inclination of the seat plate 21.
  • the skirt 63 At the rear, relative to the gas spring support 2 or the interface plate 5 mounted seat back 22, the skirt 63, if necessary one vertical slot to provide a passage for the backrest attachment.
  • the skirt 63 may be formed, for example, by a solid or flexible metal or plastic sheath. It can be covered with a fabric or other suitable material so that it also looks decorative.
  • the seat support 19 is immovably placed, which forms the actual seat cushion.
  • This seat pad 19 is laminated like two or more layers and includes a platen 65 followed by a lower platen layer 64 made of a soft elastic material and having an upper platen layer 20 harder than the lower platen layer 20 Pad layer 64 is executed.
  • the seat cover 19 may be constructed of even more layers. It is important to note that a harder layer follows a softer one upwards, although a softer one may also be present at the top.
  • This seat support 19 can be placed accurately on the seat plate 21 by, for example, on its underside has a circular recess which fits exactly on the seat plate 21.
  • FIG. 2 shows such a tube ring 16 as a wobble cushion with air chambers, with four radially extending partitions 17 to form four compartments 18 and air chambers, the adjacent are each connected to a hose 27.
  • These four tube sections 27 protrude a piece into the center of the tube ring 16 in the space remaining free there.
  • These four tube sections 27 can be closed, for example, by a pinch valve collectively more or less closed or completely closed by complete clamping in order to limit the wobble of the seat and to regulate their damping.
  • the compartments 18 or at least one of them is equipped with a controllable outlet valve 29 via a hose 30 so that controlled air can be released therefrom.
  • the exhaust valve 29 may be, for example, a screw valve, or simply one as is common on a tire hose, for venting air out of the swash pad 16 or the air chambers to the outside, if the tumble is to be increased, or about a lighter person the chair wants to use.
  • the outlet valve 29 may be operated by means of the cables of a push-pull cable or a Bowden cable.
  • a push-pull cable includes a single cable that allows pulling or poking, or two opposing cables, and these can be steplessly moved in both directions by means of a lever or a rotary handle and lock in any adjustment position.
  • a hydraulic or pneumatic adjustment can be realized.
  • Hydraulic lines or pneumatic hose lines lead to small piston-cylinder units, which operate the valves by retracting or extending the piston.
  • an electrical variant is executable, after which the push-pull cable can be operated by electric motors at the touch of a button and then actuate the valves.
  • this requires a battery as energy storage.
  • a supply hose 12 leads, as already mentioned, out of the hollow body 14 into the hose ring 16, and this supply hose 12 is equipped with a one-way valve 13, so that compressed air can only pass from the hollow body 14 into the hose ring 16, not vice versa. Because the hose ring 16 undergoes a certain unavoidable, albeit minimal loss of air over long periods of time, this loss of air is continuously compensated by the hollow body 14 acting as a pump. Each time a person sits on the chair, the air pressure in the swash cushion or hose ring 16 is increased and inflated to a maximum, which is regulated by a pressure relief valve in the hose ring 16. As a result, this chair can operate without external energy - ie without an electrical connection, for example - and its controllable tumble capacity remains constant over a long period of time, ie over years.
  • FIG. 3 shows a backdrop or template valve 75 with an upper disc 68 and a lower disc 69. Between these a thin, not visible here hole template is inserted as a perforated disc, which is rotatable between these two discs 68, 69.
  • the connection tubes 27 lead from above into the upper disc 68.
  • the axial bores in the upper disc 68 lead into axial blind holes in the lower disc 69, in which they turn by 180 ° and again up through the upper disc 68 into a second Lead hose.
  • the holes of the perforated disc can meter out the holes, completely close or completely open.
  • FIG. 4 shows a squeezing ring 33 to a pinch valve as an alternative solution to this probably simplest solution with a gate or stencil valve 75.
  • This squeezing ring 33 is in an associated guide ring 32 (FIG. FIG. 6 ), which has an annular guide channel 34, in which the crimp ring 33 is rotatably mounted, to form four distributed around the circumference arranged pinch valves for the four connecting tubes 27 on the hose ring 16 and between the compartments 18 or between individual pillows ( FIG. 10 ), which rest around the circumference of the hollow body 14 distributed on the conical upper surface 15.
  • the crimp ring 33 has at its periphery pinch surfaces 36, which act as ramps in its rotation, with a growing radius in a circumferential direction, so that a stationary in the outer Bulge of the squeezing ring 33 protruding tube section 27 is squeezed by the ramp formed by the squish surface 36 on it.
  • this crimp ring 33 is shown as a transparent plastic part, and in FIG. 6 finally used in the guide ring 32 with its guide channel 34.
  • this guide or annular channel 34 of the crimp ring 33 is rotatably inserted about the common center.
  • the distance of the pinch surface 36 to the outer wall of the annular channel 34 is more or less on its peripheral outer side of the crimp ring 33 in a circumferential direction large.
  • bushings 37 are formed of elastic material, each with two obliquely extending to the tangent holes 38.
  • the twisting of the crimping ring 33 is preferably carried out by means of the cable of a push-pull cable, the two ends of wire rope attacking the periphery of the squeezing ring 33 can rotate it as needed in one or the other direction and lock it in each rotational position.
  • the lever or an adjusting wheel or rotary handle for actuating the push-pull cable pull is preferably arranged on the armrest, but can also be placed elsewhere.
  • the crimp ring 33 is sufficiently rotatable so that it closes in the end position, the tube sections 27 collectively sealed with its squish surfaces 36.
  • FIG. 7 In the FIG. 7 are shown as an alternative to this Quetschringventil the components of a rotary valve. It is a jacket tube 85 with connections for the connecting tubes 27 of the wobble cushion with its air chambers or the compartments 18 of the annular tube 16. This includes an upper 86 and lower frame tube 87 with holes in their walls, and further a pivot 88 with holes in it.
  • FIG. 8 the rotary valve 89 is shown in the assembled state as a whole. The enclosed inside the casing tube 85 frame tubes 86,87 and the pivot pin 88 can be rotated relative to each other, and depending on the rotational position they release different passages or seal them sealed.
  • the flow can be opened by a certain connecting hose depending on the rotational position, until the release of the entire cross-section of the hose, or the flow can also be completely blocked.
  • the rotation of the central pivot pin 88 is effected by means of the cables of a push-pull cable pull with actuating lever preferably arranged on the armrest by the cable ends acting on a lever mounted on the upper end face of the pivot pin 88.
  • this lever can also be operated by a Bowden cable against the force of a coil spring to rotate the pivot pin 88 by at least one hole diameter in its peripheral wall and turn back by virtue of the coil spring.
  • a hydraulic, pneumatic or electrical actuation is feasible.
  • FIG. 9 represents the frustoconical hollow body 14 as a support for the hose ring 16 to be supported thereon with its pinch valve 31, link 75 or rotary valve 89, where it is seen here seen obliquely from below.
  • this hollow body 14 acts as a compressed air reservoir.
  • a hose 52 leads, for example through a hole in the interface plate 5 from the area below the same via a one-way valve 57 in this hollow body 14 into it.
  • the hollow body 14 is a dense hollow body of, for example, molded or molded plastic. It can be made of several parts by welding together.
  • a sheet may be used as a material, for example, a sheet metal cone and including a steel plate, with which the cone is sealingly connected via an outwardly extending elastic rubber bellows 60.
  • the lower bottom plate 61 must be strong enough to withstand the internal pressure. If it is bent against the inside, that is concave from the outside, the whole hollow body 14 is very resistant to absorb pressure forces.
  • the wobble cushion with its air chambers or the hose ring 16 is placed on top of the conical top 15, and the conical shell wall of the hollow body 14 serves thereafter as the actual support surface for the seat plate 21 and seat support 19 of the burdened with a person office, work and leisure chair ,
  • the over the hollow body 14 resting on the hose ring 16 seat plate 21 is connected in its center via a wire 66 with the conical top of the hollow body 14 so that you take the office, work and leisure chair on the seat cushion 19, lift and stairs can carry.
  • a progressively acting tension spring 65 may be installed in this wire 66, which is connected to the tip 28 of the conical top 15 of the hollow body 14, so that the seat plate 21 is always clamped down on the hose ring 16. This tension can be increased by the tension spring 65 can be set under the more or less tension on the seat plate 21 by means of a screw so that it more or less strongly presses the seat plate 21 on the hose ring 16 or the wobble pads and thus stiffening the tumble.
  • FIG. 10 shows an alternative embodiment of the wobble pad or the hose ring 16.
  • the tumble is achieved by means of four different individual pads 35 which rest on the conical top 15 of the hollow body 14, wherein the adjacent depending on a piece a piece projecting into the center tube section 27 are interconnected.
  • these four tube sections 27 may be collectively more or less closed by a respective gate or template valve 75, rotary valve 59 or pinch valve 31, or completely closed by complete clamping, so that air exchange between the individual cushions 35 is no longer possible.
  • a tube 30 with controllable outlet valve 29 is also led out of at least one of the individual cushions 35, and a supply tube 12 with a one-way valve 13 is also guided into a single cushion 35.
  • the wobble pad thus formed can also be realized with more or less than four individual cushions 35, or even with a single hose ring with more or less than four compartments 18 or air chambers.
  • the connecting tubes 27 can also be individually and thus individually equipped with a sliding valve 75 or rotary valve 59.
  • FIG. 11 shows an office, work and leisure chair, open at the bottom, that here the single pillows 35 as in FIG. 10 shown, with the front lying is not drawn to release the view inside. These individual pads 35 rest on the hollow body 14. On top of the single cushion 35, the seat plate 21 is located. This chair is equipped with armrests 24 which lie on height-adjustable armrests 23. At the here an armrest 23, a lever 26 is arranged to actuate a push-pull cable or a Bowden cable.
  • the cables lead to the central valve, be it a gate valve 75, a rotary valve 89 or pinch valve 31 for the metered opening or closing of the connection hoses between the individual cushions. With multiple gate 75 or rotary valves 59, the connecting hoses 27 can also open and close individually dosed.
  • FIG. 13 shows an armrest 24 of the office, work and leisure chair with the mounted below the arm lever 26 for actuating the cable of a push-pull cable or Bowden cable 25 for the actuation of the valves in an exemplary embodiment.
  • Both armrests 24 each rest on a height-adjustable backrest support 23, which are fastened to the base of the chair or to the interface flap 5.
  • Handle levers 26 are attached to the backrests 23 as shown by an example, similar to a bicycle or motorcycle brake lever. This pulls on actuation the one cable of the push-pull cable or a Bowden cable 25, the cable in train, for example, the crimp ring 33 in the guide ring 32 is rotated or dosed opens a valve of another type or closes, as already described.
  • the handle lever 26 is pivotally mounted in a base 46, and this base 46 is connected to the backrest support 23. So that sufficient adjustment is achieved with the lever movement, the cable of the Bowden cable can form a pulley in the reverse manner below the seat plate, or the push-pull cable can be translated to achieve a greater path.
  • FIG. 14 shows a lever 26 on the armrest support 23 with a device for locking the wire rope of the Bowden cable 25 in each position by means of a spring-loaded, pivotable about a transverse axis 59 clamping plate 50.
  • the wire 56 is bordered in the end of a steel cylinder 49, with which it firmly connected is. Its end carries a head 54, which sits in a socket 55 in the handle lever socket 46.
  • the handle lever 26 is pivotable about the axis 47, against the force of the torsion spring, which acts on the pinch ring 31.
  • a pivotable clamping plate 50 acts at a very steep angle, with slightly less than 90 °, on the steel cylinder 49, on the other side along a support surface 48th is supported.
  • the clamping plate 50 is spring-loaded by a steel spring 53 and is thus constantly pivoted against the steel cylinder 49. If the handle lever 26 is actuated and pivoted clockwise here, so he pulls the wire 56 upwards and the Steel cylinder 49, which comprises the wire rope 56, is pulled up with it and rubs past the leading edge of the clamping plate 50.
  • the torsion spring in the crimp ring 31 wants to retract the wire 56 downward, which causes an instantaneous firm jamming of the steel cylinder 49 with the clamping plate 50.
  • the wire rope 56 and its steel cylinder 49 can only go down when the clamping plate 50 is previously pivoted against the force of the spring 53 in a clockwise direction and releases the steel cylinder 49 for moving. This lock by the clamping plate 50 can be solved by pressing down on the spring-loaded by the steel spring 53 push button 51.
  • the dense hollow body 14 must first be filled as a pressure reservoir. This is done by the person sitting on the office, work and leisure chair, possibly several times to activate the pumping function of the substructure. Each time you sit down on the office, work and leisure chair air is pumped through the tube 12 and the built-in one-way valve in the wobble ( FIG. 1 ). A pressure relief valve 58 limits the maximum pressure in the hollow body 14.
  • the height of the office, work and leisure chair or its seat 19 can be adjusted in a conventional manner by the height-adjustable support 2, which contains a gas spring for this purpose.
  • the chair With the lever 26 from sitting, the chair can be reduced in height by the cable releases a lock, so that the support 2 is telescopically reduced in length, against the force of the gas spring.
  • the seat 19 must be somewhat relieved, as in previous height adjustments of office chairs with gas spring support. 2
  • the discharge valve 29 for releasing pressure from the wobble cushion or hose ring 16 or a single cushion 35 can be effected by means of a screw valve, by means of a push-pull cable pull or a spring-loaded Bowden cable.
  • valves are actuated and the connecting tubes 27 between the compartments 18 or individual cushions 35 are more or less squeezed together and an air exchange is only limited.
  • the inclination of the seat 19 from one tilting position to the other will thereby be possible only slowly because the air flow through the connecting tubes 27 is throttled.
  • the seat 19 is fully tilted to the left and the seated person applies pressure to their right buttocks half, the seat 19 tilts to the right only slowly, ie, the smaller the flow area due to metering the flow, the more time a tumbling motion will take on the far left to the far right.
  • the tumbling motion can be more or less dampened, depending on your preference.
  • the tumbling motion may take a few minutes, whereas movement over the same slope is instantly possible when the hose connections 27 are fully open.
  • hose connections 27 can also be metered individually in the flow, and the hose ring 16 or the individual cushions 35 can also be placed differently on the conical top side 15 of the hollow body 14, for example such that the parting surfaces 17 are oriented forwards and transversely, or else rotated 45 ° from this position in the other case. In between, all intermediate positions of the partitions or individual cushions 35 are possible. Depending on the positioning of the hose ring 16 or the single cushion 35, the characteristic of the tumble capacity of the seat cushion 19 changes.
  • the internal pressures of the individual compartments 18 or individual cushions 35 which change due to the wobbling behavior of the seated person and the air exchanges generated therewith, can be detected by means of pressure sensors in the compartments 18 or individual cushions 35 and stored in a computer unit.
  • the wobbling over time can be detected by software of a smart phone.
  • the seat plate 21 is equipped with a slot-shaped garage, in this one Smartphone can insert, so that it joins all the tumbling movements and registers their size and direction. The data can then be read out, stored in a computer unit and further evaluated. They represent an individual user profile.
  • the opening and closing of the corresponding valves can take place electrically, for example by means of electric solenoid valves, namely the inlet 13 and outlet valve 29 and further solenoid valves, which act as pinch valves, or else into the hoses 27 built-in solenoid valves.
  • a PLC control can be present, which can then actively drive off a user-specific wobble program.
  • a pressure sensor installed, which continuously supplies the pressure values via an interface to a computer, which then the data is processed to a user profile.
  • the opening and closing of the pneumatic connecting hoses 27 under the individual compartments 18 or individual cushions 35, as well as the opening and closing of the supply 13 and drain valve 29 may be electrically or motor actuated thereafter, so that a specific, optionally generated by itself and stored user profile , or a profile determined by a random number generator, or a manually entered profile can be traversed over time via the PLC, by opening and closing the valves more or less correspondingly over time. The latter holds the person using the chair permanently and inevitably to more or less strong wobbling on the seat 19.
  • an electrical version may also be equipped with sensors that detect when the hose ring 16 or the individual cushions 35 or the wobble cushion due to loss of air have lowered all the way down to the deposits 67, so that whenever that should happen and the Taumelrich the seat would be lost, an audible and / or visual signal is issued or a mechanical impulse is delivered to the seated person that she should stand up to cause by the one or more times Niedersitzen pumping up the swash cushions.
  • a pressure reservoir of eg 1 liter volume with 0.5 bar is accessed.
  • the basis for the control of these valves V1-V8 is an electronic circuit including high-resolution sensors for measuring the acceleration, speed, time and thus the path and inclination of each wobble.
  • the user is ultimately offered a broad spectrum of movement patterns, which he can choose according to his current musculo-skeletal-sensorimotor constitution on his chair. Decisive is less the "pleasure and mood principle" than the "correct measure” of challenge, in order to maximize a training effect beyond a frustrating possible overstrain due to too much permanent reeling.
  • the chair thus becomes the intelligent coach for sitting. The different degrees of freedom of tumbling can be measured and visualized.
  • the measured deviations - a delta - can be adjusted and managed with a smartphone-based app.
  • the user of the chair should receive with this app a stimulating tool to optimize his training and learning path while sitting.
  • the app on the smartphone can capture and display the individual movement typology of the person sitting.
  • the app links the measured values to categorized statements to what extent the user is able to attenuate or stabilize the degrees of freedom offered by the wobble pad senso-motor as well as muscular. This provides an indicator of the current individual agility of sitting and thus an indication of how the wobble pad should be adjusted to maximize the product of comfort and exercise gain.
  • it is important here to ensure the privacy or personal rights of the users. In particular, it must be ensured that neither the personnel department nor the company doctor can access the data unauthorized. And if they want to be used for scientific evaluations, they may only be used anonymously.
  • Such an office, work and leisure chair with a staggerable seat can also be equipped with a very special backrest for stimulating subliminal movements of the back muscles, as in FIG. 16 shown in a view from the side.
  • the further special of this office, work and leisure chair is then also in his back 22nd and its construction of phoronomic elements, to induce subliminal movements of the back muscles.
  • two pillar bands 71, 72 extend as a backrest 22 behind the seat surface 19 vertically upward, along the spinal column of a person sitting on the seat surface 19 of the chair, on such a phoronomic backrest 70.
  • Each of these bands is a flat, elastically deformable band is made of, for example, plastic, wood or a metal sheet.
  • the rear column belt 72 is mounted below the interface plate and extends from here with a lateral contour, which is modeled on the contour of the buttocks and the back of a seated person, first to the rear and then upwards. Meanwhile, this column belt 72 can be made at its attachment point below the seat in its inclination.
  • This one in here FIG. 16 shown office, work and leisure chair has a special feature behind his skirt 63 on a base plate on which rest the bottom plate of the hollow body and all elements for the tumble of the seat surface 19.
  • the base plate in turn, is slidably supported on the interface plate, which is mounted on top of the support 2, with respect to the office, work and leisure chair, forwards and backwards. For example, slide rails or roller rails serve this purpose.
  • the displaceability can be released by means of a push-pull cable or spring-loaded Bowden cable, wherein the associated actuating lever 26 is disposed above the seat 19 on an armrest 24.
  • FIG. 17 discloses a specific embodiment in detail.
  • the backrest is shown in a perspective view obliquely from above seen on the back side.
  • the central phoronomic element 70 consisting of the front column belt 71 and the rear column belt 72, which, however, is indicated below as dashed lines still continues.
  • These two column belts 71 and 72 are connected to each other with connecting webs 74.
  • These connecting webs 74 are here formed by flat, rigid elements, each provided with a central hole to save weight. At both ends, these connecting webs 74 are pivotally connected to the inside of the front pillar band 71 and the rear pillar band 72, respectively.
  • an air cushion 80 for damping and / or Setting the relative movements of the two column belts 71,72 against each other to be installed.
  • an air cushion 80 is installed here, which acts as a progressive compression spring.
  • an air hose can lead to a connection point which is equipped with a valve so that it can be inflated by means of a pump with an individually selectable pressure and air can be discharged through the valve, for individual shaping of the column straps 71, 72
  • several such separate air cushion between the connecting webs 74 may be installed.
  • the contour of the front pillar band 71 can be adapted to a particular back contour of a user.
  • at least one steel compression spring may be installed between the front pillar band 71 and the rear pillar band 72, or even more. It is thus immediately evident that a pressure from the front on the front pillar band 71 reduces the distance to the rear pillar band 72, and due to the geometry of the arrangement of the connecting webs 74, the front pillar band 71 moves slightly upwards, ie to the rear, fixed on the chair mounted column belt 72 moves relatively upwards.
  • the lateral transverse ribs branching like phoronomic elements 76 are grown. These form the actual support surface of the backrest.
  • the front pillar band 71 moves up and down relative to the rear pillar band 72, so does the transversely projecting ribs, so that the entire support surface for the back of the person sitting on the chair is easily moved up and down, and in particular each time If the person reclines the backrest, it dodges slightly upwards. The extent of this upward movement is dependent on the contact pressure and the dimensioning and geometric arrangement of the connecting webs 74 between the front pillar band 71 and the rear pillar band 72.
  • the ribs are each also designed as phoronomische elements 76.
  • These sockets 82 form two approximately semicircular bolt sockets and these are elastically spread apart from each other, so that the bolts 81 of the connecting webs 79 can be clicked into these sockets 82 and afterwards are pivotable back and forth in the sockets 82.
  • the connecting webs 79 can be easily replaced by others. The removal and insertion can be done without tools and quickly.
  • the articulated connections of the connecting webs 74, 79 can be designed to be displaceable in the band direction on at least one or also on both attachment sides of the webs relative to the column belt 71, 72 or transverse band 77, 78.
  • the bolt sockets 82 may be longitudinally displaceably guided on the inner sides of the transverse bands 77,78. This shift can be adjusted by means of push-pull cable pulls or Bowden cables, the wire cables are guided around one or more pulleys in the end portions of the transverse bands 77,78 and, if necessary, are held by a tension spring under tension.
  • the Bowden cables are pulled, the bolt sockets 82 are pulled along against the center of the backrest.
  • the Bowden cables or push-pull cables are guided via pulleys in the interior of the backrest construction to an adjusting wheel easily accessible in a sitting position on an armrest, which can be brought into different rotational positions and can be locked in any position.
  • the front cross straps 77 are provided here with holes for weight saving and their front sides are equipped with soft elastic pads 83. If pressure acts from the front on the front cross straps 77, the here S-shaped connecting webs 79 are slightly elastically deformed and due to the geometry and their arrangement, there is also a slight relative displacement of the front transverse straps 77 to the rear transverse straps 78, this being the rear Depending on the direction of action of the resulting force, transverse bands 78 either extend a little further or are further curved and the front transverse bands 78 curve with their ends forward or backward. Overall, the front cross straps 77 nestle against the contour of the leaning back of the chair user.
  • FIG. 18 shows a particularly advantageous and structurally simple design of this backrest.
  • the rear pillar band 72 is made stronger and stiffer and connected via at least three hinged webs (or struts) 74 with the front, weaker and more flexible executed column belt 71.
  • the branching phoronomic elements 76 are grown, which in turn consist of a front transverse band 77 and a rear transverse band 78. Between the same several S-shaped connecting webs 79 are installed.
  • This backrest design proves to be highly dynamic and extremely comfortable for the leaning chair user. When leaning, all elements work together in a harmonious manner and cling to the back muscles, causing subliminal movements, leaving the area immediately behind the user's spine free.
  • a chair with a wobble seat as described above in detail is also feasible by means of a retrofit kit, which can be placed on any chair.
  • This retrofit kit for mounting on any non-wobble seat has all the components described above for the wobble of the seat cushion.
  • the structure for the tumble of the seat cushion is designed as a unit, and the bottom plate 61 of the hollow body 14 is mounted on a base plate having on its underside a circumferential, downwardly projecting apron-like frame , the interior of which is filled by a heat-curable foam mass for conformal fitting to the seat surface contour of the seat of a conventional chair to be equipped.
  • this unit can over the seat of an office, work and leisure chair but also on a simple chair such as a Tabouret.
  • the retrofit kit can be placed on any available seat, even in the open, and used. From now on a staggering seat is available for active and healthy sitting.
EP15801247.6A 2014-10-28 2015-10-28 Büro-, arbeits- und freizeitstuhl sowie nachrüstsatz für einen stuhl oder eine sitzfläche zum erzeugen von unterschwelligen bewegungen der darauf sitzenden person Active EP3212039B1 (de)

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CH16572014 2014-10-28
PCT/IB2015/058315 WO2016067217A1 (de) 2014-10-28 2015-10-28 Büro-, arbeits- und freizeitstuhl sowie nachrüstsatz für einen stuhl oder eine sitzfläche zum erzeugen von unterschwelligen bewegungen der darauf sitzenden person

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EP3212039A1 EP3212039A1 (de) 2017-09-06
EP3212039B1 true EP3212039B1 (de) 2018-12-05

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EP15801248.4A Not-in-force EP3212040B1 (de) 2014-10-28 2015-10-28 Büro-, arbeits- und freizeitstuhl sowie nachrüstsatz für einen stuhl oder eine sitzfläche zum erzeugen von unterschwelligen bewegungen der darauf sitzenden person

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US (2) US10213024B2 (ja)
EP (2) EP3212039B1 (ja)
JP (2) JP6760951B2 (ja)
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JP2018502675A (ja) 2018-02-01
CN107205553A (zh) 2017-09-26
US10219628B2 (en) 2019-03-05
WO2016067219A1 (de) 2016-05-06
US20170290432A1 (en) 2017-10-12
US20170290433A1 (en) 2017-10-12
JP6760951B2 (ja) 2020-09-23
EP3212040A1 (de) 2017-09-06
JP2017533069A (ja) 2017-11-09
WO2016067217A1 (de) 2016-05-06
US10213024B2 (en) 2019-02-26
EP3212040B1 (de) 2018-12-05
EP3212039A1 (de) 2017-09-06
CN107205554A (zh) 2017-09-26

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