EP1997403A1 - Dispositif de siège dynamique actif - Google Patents

Dispositif de siège dynamique actif Download PDF

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Publication number
EP1997403A1
EP1997403A1 EP08010078A EP08010078A EP1997403A1 EP 1997403 A1 EP1997403 A1 EP 1997403A1 EP 08010078 A EP08010078 A EP 08010078A EP 08010078 A EP08010078 A EP 08010078A EP 1997403 A1 EP1997403 A1 EP 1997403A1
Authority
EP
European Patent Office
Prior art keywords
ball
active dynamic
seat device
ball track
foot part
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Withdrawn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
EP08010078A
Other languages
German (de)
English (en)
Inventor
Eberhard Lenz
Matthias Ebert
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
Publication of EP1997403A1 publication Critical patent/EP1997403A1/fr
Withdrawn legal-status Critical Current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
    • A47C9/00—Stools for specified purposes
    • A47C9/002—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects

Definitions

  • the invention relates to an active-dynamic seating device having the features of the preamble of patent claim 1.
  • An active-dynamic seating device enables active, dynamic sitting in which the back muscles and the intervertebral discs are always in easy action.
  • This active dynamic sitting posture is achieved in virtually all cases in that the actual seat of the seat device oscillates around at least one lower pivot point and is thus held in an unstable position.
  • a suspension can be provided in the vertical direction.
  • Such seating devices are formed in particular by pendulum stool.
  • a pendulum hacker is out of the DE 75 31 129 U1 known. However, it is less a stool than a working seat for working people who are forced to work.
  • This work seat has a height-adjustable and with each movement of the user with walking saddle seat.
  • a ball joint located above a disc base enables the pendulum movement and a tension spring mechanism integrated in the disc base effects the automatic return to the neutral position.
  • Another pendulum stool is known as SWOPPER and among others in the EP 0 808 116 B1 described. It is about a pendulum stool with height adjustment and a spring column with an adaptable to the weight of the user suspension. The deflection of the seat, as the pendulum, via a joint between the spring column and the foot part. With the joint, the spring column is tiltably supported on the foot part.
  • pendulum stool is known under the name ERGO. It is a pendulum stool with height adjustment by means of a gas spring, whose pendulum motion is achieved solely by a convex shape of the footprint of a plate foot.
  • a pendulum stool with a plate base with convex footprint is also in the DD 73 618 A1 described.
  • the simplest form of a pendulum stool has only a seat plate, on the underside of which a central pillar is centrally fixed, the end of which forms the foot part and is convexly rounded in order to allow a tilting or pendulum movement.
  • pendulum stools cause the user to constantly seek a balance of his posture and execute.
  • the user of a pendulum stool relies on the one hand with his own two legs and on the other hand with the foot of the stool only in three points on a base or the floor. In order not to fall over, the seated person must constantly balance the center of gravity of his body within the triangular area defined by these points.
  • a simple monopod stool consisting only of the seat plate and a rigid handle projecting from the underside of the saucer plate, relieves the occupant of the greatest balancing work because the stool's orientation is not stabilized by any means.
  • a pendulum stool is therefore also used in physiotherapy to strengthen the involved leg and back muscles and to promote coordination.
  • a special exercise is, for example, to let the pelvis and thus also the pendulum stool to circle. Due to the lack of stabilization, such a balance exercise can encounter insecurity for many people, so that the exercise fails.
  • the object of the invention is to develop an active-dynamic seat device so that its possible uses for balance exercises are improved.
  • An active dynamic seating device with a seat, a middle part (central pillar) and a foot part is typically formed by a pendulum stool of the type described above.
  • the invention is applicable to any seat device in a broader sense, for example, on an inflatable gymnastics seat ball made of elastic PVC, which inflated bulging reaches a diameter of about 65 cm and forms a resilient seat device, wherein the foot part formed by the footprint of the ball sitting becomes.
  • All actively dynamic seating devices have in common that only by the additional support of one or both legs of a user a stable seating position is achieved.
  • the seat device has a sound generator, which emits a sound when a certain change in the seat position is carried out.
  • the user of the seat apparatus receives an acoustic feedback, which can assist him in performing a gymnastic exercise and can take uncertainty. Examinations on subjects have shown that an exercise succeeds better if, in its implementation, the attention of the performer can be focused on an external intention, that is, an intent not directly related to the implementation. According to the invention, the intention of the user is focused on the generation of a particular sound. As "sound" should also apply a sound. The key is that the sound can be perceived and assigned by the user.
  • a not to be underestimated aspect is that the play with the noise generation responds to the play instinct of a user and causes him to perform an otherwise perhaps annoying exercise concentrated on the seat device and persistently.
  • the tone generator is to be designed so that only by a deliberate change in the sitting position in the context of an exercise of the sound generator for delivering a specific sound associated with the exercise is stimulated. This gives the user an acoustic feedback as to whether the exercise is being performed properly.
  • One particularly useful exercise for strengthening the back muscles is for the tone generator to respond to an exercise in which the user's pelvis cyclically performs a circular or elliptical motion.
  • the motion pattern is detected by means of acceleration sensors or pressure-sensitive sensors in the seat, middle section or foot section and, after comparison with stored patterns, an acoustic signal Feedback is given when the sensory detected pattern comes close to a storedSchunasmuster.
  • a simple mechanical tone generator can be formed by generating a sound by means of a movable mass, which experiences an acceleration by changing the seating position, by exciting tone generator elements to emit a sound.
  • the sound generator elements can be integrated in the moving mass itself and be excited by the movement of the mass to the sound output.
  • An example would be a sound ball, which gives off a bright spherical sound when unrolling.
  • Such sound balls are known as Qigong balls and e.g. made of silver or titanium.
  • the tone generator elements may be arranged along a predetermined path which traverses the moveable mass when performing an exercise and is stimulated to interact with the moveable mass for sound delivery.
  • An example would be a singing bowl or a ball track, which is excited by the rolling of a ball to acoustic vibrations.
  • the tone generator includes a ball, the movement of which is guided within a ball track, wherein the ball track is formed so that the ball when rolling along the track induces a sound or a noise.
  • the ball track may have an internal profiling which, in conjunction with a rolling ball, emits a sound, sound or sound.
  • a random pattern is already given by material unevenness in the ball track for the profiling, so that when rolling the ball a typical noise such as noise arises, which is similar to the rolling of a glass ball on a wooden plate. The effect is enhanced when the plate or ball track is mounted oscillating and thus can serve as a resonator.
  • the ball track can be designed so that the movement of the ball in the ball track can be tracked by the user not only acoustically but also optically, which enhances the feedback effect.
  • An embodiment in which the ball track is self-contained has the advantage that the guided ball, with suitable excitation by the seat movement, can perform an endless movement and thus stimulate a long-lasting sound.
  • An embodiment in which the closed ball track encloses a central axis, which runs through the seat and foot part, has the advantage that the available space on the seat is optimally utilized and the weight distribution of the unoccupied seat can be easily balanced around a vertical rest position.
  • An embodiment in which the ball track extends within a plane which intersects the central axis at a vertical angle has the advantage that in a circular pendulum motion about the vertical rest position of the seat device takes place a uniform excitation of the movement in the ball track.
  • this particular arrangement of the ball track supports a circular movement about the vertical axis. This is particularly advantageous when applied to a seat device formed by a seat ball, since the seat ball has no central axis on which a user can orient himself.
  • the seat device is formed by a pendulum stool, whose foot part is formed by a disc base with a convex contact surface, wherein the ball track is arranged on the foot part of the seat device.
  • the ball track can be attached from the outside to the footboard, for example, due to a retrofit.
  • the ball track is integrated into the foot part. This then arises when the ball track is incorporated in the course of the manufacture of the foot part, which represents a more cost-effective solution.
  • the tone generator can be designed as a retrofit kit for the intended use in an active dynamic seating device.
  • a pendulum stool retrofitting could be in a ball track with ball, which is attached to the foot of the pendulum stool later.
  • a seat ball as a seat device for example, a tube closed into a circular ring would be conceivable as a ball track, which is slipped over the seat ball and held in a meridian position by a press fit.
  • a circulating in the tube ball would be set by a circular pelvic movement of a user in a circulating movement and generate a corresponding noise when rolling.
  • the Fig. 1 shows a pendulum stool as a seat device 1.
  • the pendulum stool comprises a foot part 2, which centrally a central column 3 receives, on which a seat 4 is fixed.
  • the foot part 2 is formed by a cup foot 2a with a diameter of 400 mm and a convex contact surface 2b, the radius of curvature of the contact surface being 725 mm.
  • the central column 3 includes in a known manner a gas spring for height adjustment as you know of office chairs, which allows a height adjustment of the seat in the range of 540-740 mm. The height adjustment can be requested manually by means of a trigger 6.
  • the seat is lightly padded, with the seat cover has only a low to medium adhesion to facilitate gymnastic exercises.
  • 7b In the foot part of the sound generator 7a, 7b is arranged, which consists of a ball 7a, which can rotate in a ball track 7b in a circle.
  • the ball 7a may have a diameter between 10-30 mm.
  • the ball track 7b is adapted to the diameter of the ball 7a and forms a circle with a diameter of 320 mm.
  • the radially outer wall of the ball track 7b serves to guide the ball at high rotational speed with high centrifugal force. The rolling of the ball along this orbit produces a characteristic sound which gives the user feedback that he is exercising the exercise properly.
  • the inner wall of the ball track 7b must leave with their circle radius sufficient clearance for the course of the ball 7a. A reduction of the radius of the inside wall allows the ball 7a more play. The radius can be reduced so far that the inner wall rests against the central column 3. In this case, the ball track goes over into a spherical shell.
  • the ball track can be undercut so that the ball can not leave the ball track.
  • the foot part 2 has an approximately 6 mm thick cover 8, which serves to stabilize the foot part 2 and to design the sound generation by striking the ball 7a to the inner wall gives a different sound as a striking against the outer wall ,
  • the lid makes it possible to realize different surfaces according to color and feel. If the foot part is made of hollow body or as Lammellen structural body, can be covered with the lid, the inner structure. The cover could at least partially cover the ball track to prevent escape of the ball. As a deep-drawn part made of plastic or metal, the cover could also absorb the ball track in one piece.
  • the lid with integrated ball track could be offered as a sound generator for retrofitting an existing pendulum stool for sale.
  • the foot part 2 with the ball track 7a is preferably produced in one piece, for example by milling a hard foam part or by its production in the casting process with a mold which images the ball track.
  • Fig. 2 shows a plan view of the foot part 2 with the cross-sectional area of the central column 3.
  • the circular ball track 7b for the ball 7a is bounded by the radially outer outer wall 7c and the radially inner wall 7d. As already described, the inner wall 7 d can be brought up to the column 3.
  • a minimum activity for the circular pelvic movement of a user can be specified. Only if the user the exercise in speed and Pendulum stroke has set so that it exceeds this minimum activity, the ball 7a circulate in a circular path and the central column 3, which gives him the desired. Feedback is.
  • a limiter 9a, 9b, 9c which block the way for the ball 7a.
  • the limiters are fixed in the ball track 7b in a fixed position, for example by clamping.
  • the limiters emit a characteristic sound when striking the ball 7a.
  • the sound comes about either through the material, such as wood or metal of the limiter or by striking the outer contact surfaces, which are provided with their own limiter sound generators 10.
  • a limiter tone generator made of metal or wood emits a characteristic sound that can be assigned by the user.
  • a one-sided limiter 9b, 9c has only a single limiter tone generator 10, it being possible to distinguish between left-sided and right-hand limiter.
  • a two-sided limiter 9a has on the opposite contact surfaces in each case a limiter tone generator 10.
  • limiter 9a With a from the perspective of a user rearward in the ball track 7b arranged limiter 9a, as in Fig. 3a As shown, the ball would not follow a circumferential, closed path but would be reflected at the limiter 9a. The sound produced when the ball 7a hits the limiter 9a gives the user a characteristic feedback that assists him in his practice. Due to the symmetrical division of the ball 7a forced path here is recommended the use of a two-sided limiter 9a, because the ball can strike at both opposite contact surfaces.
  • a limiter 9a, 9b, 9c can be formed by having a metal core with a smaller diameter than the passage of the ball track 7b, which consists of the radius difference between the radially outer wall 7c and the radially inner wall 7d results, is used.
  • This metal core is separated from an elastic tube, e.g. made of sponge rubber, sheathed.
  • the hose is dimensioned such that the sheathed metal core can only be clamped into the ball track 7b with the application of force, as a result of which the limiter 9a, 9b, 9c is fixed in its position by press fit and is also not displaced by abutment of the ball.
  • a wood core can also be used.
  • a limiter could also be made entirely of metal and locked in the ball track by means of clamping jaws.
  • the jaws could be spread with an internal screw, which can be zzen, for example by means of an Allen wrench, spread.
  • the lid 8 is in Fig. 3b shown again and can be designed as a replacement part by being adapted in its geometry to the foot part 2.
  • the replacement of the lid 8 is carried out by the seat 4 is removed and the central column 3 is guided through the central hole of the lid 8.
  • the lid may have a radially extending slot 11 and, as with a paper ring to cover a foot of a goblet, be guided by slight widening of the radial edges of the lid at the slot 11 around the central column.
  • the lid is then invisible from the outside, e.g. fixed to the foot part 2 by double-sided adhesive tape or clips or a clamping strip.
  • the lid 8 may be printed in color on its visible side. If the cover 8 is more for information reproduction than the structural reinforcement material, its wall thickness can be made thinner than the specified 6 mm.
  • the limiter described above could also be fastened to the cover, so that with the attachment of the cover 8, the limiters would be brought into their position. Thus, different covers could be provided for different limiter arrangements.
  • the foot part 2 may be milled or turned from solid wood, wherein the ball track 7b has also been milled or turned. In this embodiment, when rolling a ball in the ball track results in a pleasant sound.
  • the tone generator includes a movable mass, which experiences an acceleration by changing the seat position.
  • This can be a ball as in the embodiment.
  • a movable mass which experiences an acceleration by changing the seat position.
  • This can be a ball as in the embodiment.
  • Also such movable masses are intended in Under this invention be understood as a "ball”.

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  • Rehabilitation Tools (AREA)
EP08010078A 2007-06-02 2008-06-02 Dispositif de siège dynamique actif Withdrawn EP1997403A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007025799A DE102007025799A1 (de) 2007-06-02 2007-06-02 Aktivdynamische Sitzvorrichtung

Publications (1)

Publication Number Publication Date
EP1997403A1 true EP1997403A1 (fr) 2008-12-03

Family

ID=39711836

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08010078A Withdrawn EP1997403A1 (fr) 2007-06-02 2008-06-02 Dispositif de siège dynamique actif

Country Status (3)

Country Link
US (1) US20090001788A1 (fr)
EP (1) EP1997403A1 (fr)
DE (2) DE102007025799A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD740041S1 (en) 2014-06-05 2015-10-06 Humanscale Corporation Stool
USD745287S1 (en) 2014-07-30 2015-12-15 Humanscale Corporation Stool
USD756139S1 (en) 2014-06-05 2016-05-17 Humanscale Corporation Stool

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ATE488160T1 (de) * 2007-09-17 2010-12-15 Nuna Int Bv Schaukelstuhl
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DE102010020503A1 (de) * 2010-05-14 2011-11-17 Josef Glöckl Sitzvorrichtung mit beweglichem Sitz
US20120065558A1 (en) * 2010-09-09 2012-03-15 Abercrombie Iii Marshall West Lower Back Alignment And Decompression Machine
US9474377B2 (en) 2012-05-16 2016-10-25 Safco Products Co. Upright active-sitting seat
US9010867B2 (en) 2012-06-01 2015-04-21 Steelcase Inc. Stool with tilted orientation
US8998319B2 (en) * 2012-06-19 2015-04-07 Sitight, Inc. Seating device
DE102012015563A1 (de) 2012-08-06 2014-02-06 Eberhard Lenz Aktivdynamische Sitzvorrichtung
US9138058B2 (en) * 2013-04-23 2015-09-22 Office for Metropolitan Architecture (O.M.A.) Stedebouw B.V Seating device having a height adjustment mechanism
FR3004957A1 (fr) * 2013-04-25 2014-10-31 Olivier Hugou Dispositif de siege de gymnastique passive, permettant des exercices musculaire en position assise
KR200476547Y1 (ko) 2013-07-04 2015-03-18 정현욱 휴대용 작업의자
DE102014000386A1 (de) 2014-01-10 2015-07-16 Eberhard Lenz Bewegliches Sitzlager
DE102014010738A1 (de) 2014-07-18 2016-01-21 Eberhard Lenz Aktivdynamische Sitzvorrichtung mit Bewegungssensoren
WO2016081840A1 (fr) * 2014-11-21 2016-05-26 Robertson James Craig Chaise basculante ergonomique rempliage et portative
EP3265874B1 (fr) * 2015-03-02 2020-04-29 Easydive Di Benvenuti Fabio Boîte étanche pour cameras numérique et caméscopes
US9931556B2 (en) * 2015-09-01 2018-04-03 Christopher Cosma Riding trainer
US10543390B2 (en) * 2015-10-26 2020-01-28 Active Base Method to assist with using a seating device, and electronic object carrying out said associated method and system
US20170354258A1 (en) * 2016-06-09 2017-12-14 Safco Products Co. Seat cushion
USD806414S1 (en) * 2016-10-05 2018-01-02 Kore Design LLC Stool with wobble ring actuator
USD801714S1 (en) * 2016-10-10 2017-11-07 Kore Design LLC Stool with ring piston actuator
USD846930S1 (en) 2016-10-31 2019-04-30 Varidesk, Llc Chair
US10376071B2 (en) 2016-11-28 2019-08-13 Variadesk, LLC Leaning chair
AU201714093S (en) * 2017-02-20 2017-08-09 High Street Tv Group Ltd Exercise device
USD853163S1 (en) * 2017-05-15 2019-07-09 Bock 1 Gmbh & Co. Kg Office chair
US10681989B2 (en) * 2017-12-29 2020-06-16 Robert E Marsh Marsh seat
US11140982B2 (en) * 2019-12-31 2021-10-12 School Specialty, Llc Desk support with stool
USD990902S1 (en) * 2021-04-16 2023-07-04 Tao Yang Bar stool
USD989499S1 (en) * 2021-08-31 2023-06-20 Tao Yang Bar stool
US20230397728A1 (en) * 2021-11-01 2023-12-14 Kinetic Furniture Of Vermont Inc. Active chair activity tracking system

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DD73618A (fr)
DE7531129U (de) 1975-10-02 1976-03-18 Schuckmann, Alfred Von, 5657 Haan Arbeits-sitz
EP0808116B1 (fr) 1995-02-08 1999-12-29 Josef GLÖCKL Tabouret a mouvement pendulaire
EP1005812A2 (fr) * 1995-09-11 2000-06-07 Walter Frese Siège dynamico-actif
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD740041S1 (en) 2014-06-05 2015-10-06 Humanscale Corporation Stool
USD740578S1 (en) 2014-06-05 2015-10-13 Humanscale Corporation Stool
USD756139S1 (en) 2014-06-05 2016-05-17 Humanscale Corporation Stool
USD745287S1 (en) 2014-07-30 2015-12-15 Humanscale Corporation Stool

Also Published As

Publication number Publication date
DE202007018878U1 (de) 2010-04-15
US20090001788A1 (en) 2009-01-01
DE102007025799A1 (de) 2008-12-04

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