EP0145762B1 - Sitz - Google Patents

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Publication number
EP0145762B1
EP0145762B1 EP84902435A EP84902435A EP0145762B1 EP 0145762 B1 EP0145762 B1 EP 0145762B1 EP 84902435 A EP84902435 A EP 84902435A EP 84902435 A EP84902435 A EP 84902435A EP 0145762 B1 EP0145762 B1 EP 0145762B1
Authority
EP
European Patent Office
Prior art keywords
support
seat
fact
posterior
compliance
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.)
Expired - Lifetime
Application number
EP84902435A
Other languages
English (en)
French (fr)
Other versions
EP0145762A1 (de
Inventor
Jean-Luc Saint Hubert
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.)
Saint Hubert Jean-Luc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT84902435T priority Critical patent/ATE61917T1/de
Publication of EP0145762A1 publication Critical patent/EP0145762A1/de
Application granted granted Critical
Publication of EP0145762B1 publication Critical patent/EP0145762B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

Definitions

  • the present invention relates to a seat comprising a foot part, a seat part and a back part, arranged so as to allow a sitting position in which the pelvis is straight, the back part being designed to promote this position and comprising for this purpose a support device giving posterior support to all the bones of the pelvis.
  • a seat according to the invention makes safe and easy the prolonged maintenance of the sitting position by effectively stabilizing the pelvis, thus allowing a correct arrangement of the trunk on its base. Such a seat helps to reduce fatigue and pain in the trunk when seated.
  • this support at the sacroiliac joint is therefore carried out on all the pelvic bones, that is to say simultaneously on the posterior edge of the two iliac bones (in point 3 of Figures 1, 2 and 3 , below EIPS, point 6) and on the sacrum (at point 4 in Figures 2 and 3, above the most posterior point of the posterior surface of the sacrum, point 7 in Figures 1, 2 and 3).
  • the advantage of this support therefore lies mainly in its effectiveness in opposing the retroversion of the pelvis in a seated position while avoiding the risks mentioned above, thus contributing optimally to stabilize the pelvis on which the spine and the trunk can therefore lean with ease.
  • This posterior support thus contributes to avoiding the fatigue linked to a prolonged sitting position by reducing as much as possible the tensions necessary to maintain the trunk in a correct position.
  • Such a type of support is made possible by the use of a seat provided, according to the invention, with a posterior support device of suitable shape and consistency, placed on the front face of the backrest or secured to amounts which support it.
  • This device is located at a height relative to the seat base allowing it to contact the pelvis area described above (at the sacroiliac joint) in a position close to the so-called “sthenic" sitting position, that is to say the right pelvis and the straightened trunk.
  • the realization of seats provided with a device according to the invention also includes the possibility of adapting the non-standard shapes and dimensions.
  • the support device in question can therefore protrude relative to a file allowing more general support or relative to a support frame if it is the only posterior support available or if it is isolated.
  • a removable support system of variable height can be provided.
  • Such a system can be fixed in any way to one of the parts of a seat which therefore meets the requirements ters established for the present invention.
  • a device according to the invention must stand out sufficiently or be sufficiently isolated from the rest of the posterior support (if it exists) to allow the directly overlying parts (EIPS) and underlying (sacrum) to the support area, to take place freely above and below the device, and thus give rise to the use of the latter.
  • the rest of the seat must therefore allow the device to be used.
  • this backrest cannot exceed the anatomical relief of the back in position forward. so-called “sthenic" seat to allow maximum support on the device.
  • the rest of the file will therefore be at most molded on the back of the user.
  • the height and depth dimensions of the seat they must implicitly allow the user to sit with the right pelvis to be able to benefit from the support of the device on the appropriate area (at the level of the sacroiliac joint).
  • a posterior support device therefore comprises three support zones: two lateral zones and a central zone set back with respect to the first two. These three areas are rounded forward and intended to support the two iliac bones laterally (below the EIPS) and the sacrum in the middle (above the most posterior point of its posterior surface).
  • the three support zones of such a device stand out over a height of approximately 30 mm to give minimum support (allowing an optimal approach to the sacroiliac joint), and sufficient nevertheless given the importance of the pressure of the pelvis on the device at this level.
  • a global curvature towards the front of a device meeting these criteria, and the alignment of the three zones on a horizontal plane an example is obtained where these three zones are in the same extension, in the form of a strip ( Figure 4 point 2) can be arranged at the location of a folder described above (at the sacroiliac joint).
  • the consistency of the device is such that it can serve as a support for the entire trunk even if it is isolated, without however risking causing tissue damage which covers the skeleton of this area of the pelvis.
  • FIG. 1 shows a side view of the skeleton of a vertical pelvis and a vertical partial sectional view along line IV-IV of Figure 4 of a rear support device of a seat according to the invention.
  • FIG. 2 represents a rear view of the skeleton of a vertical pelvis with, in hatched form, the area of this relief intended to rest on a device according to the invention.
  • 3 shows a schematic view in vertical section along line IV-IV of Figure 4 of a seat according to the invention, a sacrum and a lumbar spine being shown in side view with an iliac bone in the background left.
  • FIG. 4 represents the diagram of a seat seen from above, provided with a device according to the invention.
  • a system for adjusting the height and depth of the central support zone relative to the two lateral support zones can be provided in order to to adapt the support device to certain particular conformations of basins. Since this adjustment is rarely necessary, a standard device of fixed shape and simple construction is preferably proposed in the present description.
  • a support device of this type is shown in 2 seen from above in FIG. 4, this device having the three support zones in the same extension and the middle zone set back with respect to the two lateral zones of approximately 15 mm.
  • the device as posterior support secured to a seat is therefore, at the midpoint of its vertical thickness, vertically distant from the plane of the seat (taking into account the crushing of a possible padding) of a height equal to the vertical distance which separates the horizontal plane including the ischia of the support zone described above (at the sacroiliac joint of a pelvis in vertical position). This distance is worth approximately 125 to 175 mm.
  • a device according to the invention can for example place this support device on the front side of a suitable backrest according to the present descrip tion or securing it to a support frame, at an average height such that any user can dispose of it, that is to say so that the support points of the device according to the invention can come into contact with the pelvis of the user at the sacroiliac joint as it is recommended in this thesis.
  • This average height is approximately 150 mm from the support plane of the ischia.
  • a height adjustment system for a device according to the invention makes it possible to adapt this device to the dimensions of the user's pelvis arranged vertically on the seat cushion.
  • Such an adjustment system makes it possible to produce adjustable standard office or work seats.
  • a system for adjusting the depth of a support device according to the invention can be provided.
  • custom-make seats provided with a support device according to the invention provided at the exact height recommended here (at the height of the sacroiliac joint of the vertical pelvis), this height being determinable by an examination simple biometric, using a seat provided with a device according to the invention adjustable in height as above on a graduated scale indicating this adequate individual height.
  • the present invention as posterior support of the pelvis in the sitting position, therefore gives effective support to the user and thus stabilizes the base of his spine.
  • This allows the trunk to be kept in a correct sitting position with a minimum of tension in the back muscles without risking damage to the joints of the spine and pelvis.

Landscapes

  • Orthopedics, Nursing, And Contraception (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Fats And Perfumes (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Claims (10)

  1. Sitzmöbel mit Bein-, Sitz- und Rückenlehnenteil, deren spezifische Anordnung eine Sitzstellung mit geradem Becken erlaubt, der Rücklehnenteil umfasst eine Lehnvorrichtung (2), die den gesamten Beckenknochen als Stützorgan dient, dadurch gekennzeichnet, dass diese Lehnvorrichtung (2) auf der Höhe des Kreuzbein- Darmbeingelenkes eines geraden Beckens, unter den Darmbeinstacheln hinsichtlich des hinteren Randes der Hüftknochen, und über dem hintersten Punkt des Kreuzbeines hinsichtlich der Stütze des Kreuzbeines angeordnet ist.
  2. Sitzmöbel nach Anspruch 1), dadurch gekennzeichnet, dass die Lehnvorrrichtung (2) mindestens drei Stützbereiche umfasst, von denen der mittlere Bereich im Vergleich zu den beiden anderen zur Stützung des Kreuzbeines zurückliegt und zwei seitliche zur Stützung der Hüftknochen dienende Bereiche, die symmetrisch zur senkrechter Symmetrieebene des Sitzmöbels sind, die mitten durch den mittleren Bereich verläuft, diese seitlichen Stützbereiche sind etwa 180 mm voneinander entfernt.
  3. Sitzmöbel nach Anspruch 2), dadurch gekennzeichnet, dass jeder der drei Stützbereiche mindestens 10 mm breit ist.
  4. Sitzmöbel nach einem der o.e. Ansprüche 2 oder 3, dadurch gekennzeichnet, dass jeder Stützbereich mindestens 5 mm tief ist.
  5. Sitzmöbel nach einem der o.e. Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Stützbereiche eine vorspringende, von oben nach unten gewölbte Form aufweisen.
  6. Sitzmöbel nach einem der o.e. Ansprüche 2 bis 5, dadurch gekennzeichnet, dass die Stützbereiche vertikal eine Dicke von 20 mm bis 40 mm aufweisen, vorzugsweise 30 mm.
  7. Sitzmöbel nach einem der o.e. Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Lehnvorrichtung (2) auf einer Höhe von 125 mm bis 175 mm, vorzugsweise auf 150 mm als mittlere Höhe, angeordnet ist, die Höhe wird ab Sitzteil bis zum mittleren Punkt der vertikaler Dicke der jeweiligen Lehnvorrichtung gemessen.
  8. Sitzmöbel nach einem der o.e. Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Lehnvorrichtung (2) höhen- und/oder tiefenverstellbar ist.
  9. Sitzmöbel nach einem der o.e. Ansprüche 2 bis 8, dadurch gekennzeichnet, dass die Stützbereiche durchgehend und auf gleicher horizontaler Ebene sind, wobei der mittlere Bereich im Vergleich zu den zwei seitlichen Bereichen um 15 mm zurückliegt.
  10. Sitzmöbel nach einem der o.e. Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Lehnvorrichtung (2) abnehmbar ist.
EP84902435A 1983-06-10 1984-06-08 Sitz Expired - Lifetime EP0145762B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84902435T ATE61917T1 (de) 1983-06-10 1984-06-08 Sitz.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE897027 1983-06-10
BE0/210983A BE897027A (fr) 1983-06-10 1983-06-10 Siege,
BE210983 1983-06-10

Publications (2)

Publication Number Publication Date
EP0145762A1 EP0145762A1 (de) 1985-06-26
EP0145762B1 true EP0145762B1 (de) 1991-03-27

Family

ID=3862204

Family Applications (2)

Application Number Title Priority Date Filing Date
EP84902435A Expired - Lifetime EP0145762B1 (de) 1983-06-10 1984-06-08 Sitz
EP84870076A Withdrawn EP0130169A1 (de) 1983-06-10 1984-06-08 Sitz

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP84870076A Withdrawn EP0130169A1 (de) 1983-06-10 1984-06-08 Sitz

Country Status (6)

Country Link
EP (2) EP0145762B1 (de)
AT (1) ATE61917T1 (de)
AU (1) AU3067584A (de)
BE (1) BE897027A (de)
DE (1) DE3484344D1 (de)
WO (1) WO1984004873A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2121704B1 (es) * 1997-05-13 1999-07-01 Correccio I Condicionament Fis Dispositivo corrector de patologias lumbares y/o cervicales.
WO2003063651A2 (en) 2002-01-28 2003-08-07 Walker Brock M Sacral support member for seating
US20050225140A1 (en) * 2002-05-24 2005-10-13 Savvy Physiotherapy Pty Ltd Seating arrangement
AU2003903213A0 (en) 2003-06-25 2003-07-10 Jennifer Anne Davidson A chair
AU2016287479B2 (en) 2015-06-29 2021-07-08 MillerKnoll, Inc Back support

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1250751A (de) * 1967-07-14 1971-10-20
FR2067806A5 (de) * 1969-11-18 1971-08-20 Lemoine Emilie
CH558158A (de) * 1973-05-18 1975-01-31 Bolleter Emil Stuhl mit rueckenlehne, insbesondere buerostuhl.
CH573725A5 (en) * 1973-12-01 1976-03-31 Drabert Soehne Adjustable chain with back cushion - has additional supports on triangular pattern to various designs

Also Published As

Publication number Publication date
EP0130169A1 (de) 1985-01-02
WO1984004873A1 (fr) 1984-12-20
AU3067584A (en) 1985-01-04
ATE61917T1 (de) 1991-04-15
BE897027A (fr) 1983-12-12
EP0145762A1 (de) 1985-06-26
DE3484344D1 (de) 1991-05-02

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