EP0130169A1 - Sitz - Google Patents

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Publication number
EP0130169A1
EP0130169A1 EP84870076A EP84870076A EP0130169A1 EP 0130169 A1 EP0130169 A1 EP 0130169A1 EP 84870076 A EP84870076 A EP 84870076A EP 84870076 A EP84870076 A EP 84870076A EP 0130169 A1 EP0130169 A1 EP 0130169A1
Authority
EP
European Patent Office
Prior art keywords
support
seat
posterior
sacrum
pelvis
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Withdrawn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
EP84870076A
Other languages
English (en)
French (fr)
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
Publication of EP0130169A1 publication Critical patent/EP0130169A1/de
Withdrawn legal-status Critical Current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
    • 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.
  • 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.
  • Some backrests include, for example, a strongly lowered V-shaped ridge to support the saerum, and having a forward projection at the tip of this V distant from the adjacent area lowered from the seat surface of about 18 cm (see Belgian patent n ° 709164).
  • Such a type of support is therefore intended to support the sacrum in the writing position (leaning forward), and the "... area of the spine which corresponds to the kidneys and (in) that corresponding to the lower part thorax ... "in the upright sitting position (called” attention position "in the text of the specification of this patent).
  • 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 optimally helping to stabilize the pelvis on which the spine and 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. It can also be inserted between two uprights, whether it is alone or associated with a complementary support whatever it is in so far as it meets the criteria according to the invention.
  • 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.
  • the invented device If the invented device emerges correctly, it must also have a functional form allowing it to best fit the area of the skeleton of the pelvis at the level of the sacroiliac joint by penetrating at this point of its posterior relief.
  • 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 zones are rounded towards the front 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 sacro- iliac), and sufficient nevertheless given the importance of the pressure of the pelvis on the device at this level.
  • a global forward bending of a device meeting these criteria, and the alignment of the three zones on a horizontal plane, an example is obtained or 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 we can see the front face 5 rounded towards the front of a support device 2 according to the invention.
  • This support device 2 is here seen in posterior-anterior vertical section at its point of application on the posterior edge of the iliac bone.
  • this anterior face 5 is therefore intended to support the posterior edge of the iliac bone below 1 ° EIPS 6 according to the invention.
  • the dotted line in this FIG. 1 makes it possible to locate the sacroiliac joint 8 which is not visible in a profile view, zone 8 at the height of which a support device 2 according to the invention applies.
  • FIG. 2 one can see a hatched zone comprising the posterior edge 3 of the iliac bones under the EIPS 6, as well as the posterior crest 4 of the sacrum above the most posterior point 7 of this posterior face of the sacrum.
  • This zone is located at the level of the sacroiliac joint, the latter not being visible in this figure 2.
  • Figure 3 shows a seat shown schematically in vertical section along the line IV-IV of Figure 4, seat whose backrest 1 allows. the natural physiological arrangement of the trunk, as in this drawing, favored by the application, on the front face of this backrest 1, of a support device 2 according to the invention.
  • the support given by such a support device alone being sufficient, the rest of the file can be deleted, except for the part which serves to support this device.
  • the support device 2 is located on the backrest 1 at the level of the sacroiliac joint 8 of the pelvis arranged vertically as a seat according to the invention allows.
  • the height of said - positive support 2 with respect to the base 9 of such a seat is equal therefore to the vertical distance between the posterior bearing points 3 and 4 and the horizontal plane comprising the landing zone 10 ischia.
  • FIG. 3 also shows the rounded shape towards the front of the front face 5 of a support device 2, as well as the depth of such a device according to the invention to allow its use.
  • FIG 4 it can be seen in elevation a supporting device 2 according to the invention associated with a seat whose seat is shown schematically 9. It is important to note here that the functional form of the apparatus 2 designed in this figure 4 is not the only one which corresponds to the characteristics included in the claims given following the description of such a device.
  • the front face 5 of this device 2 is curved forward so as to determine in particular two levels of support depth 5a and 5b: the midpoint 5a of this front face 5 intended to support the sacrum determines a recessed support depth (about 15 mm if the three support points are on the same horizontal plane) relative to the depth level of the lateral points 5b intended to support the iliac bones, these points 5b being symmetrical with respect to the plane of symmetry passing through 5a, and equidistant from this point 5a of the average distance which separates the posterior crest of the sacrum from a vertical pelvis from the posterior edge of an iliac bone of this pelvis at the level of l 'sacroiliac joint (point 8 in Figures 1 and 3), in accordance with the present description of a support device 2 according to the invention.
  • the average quantified measurements corresponding to these dimensions on the basis of anatomical landmarks are given below.
  • FIG. 4 also makes it possible to observe one of the possible embodiments of a seat provided with a support device 2 according to the invention: this device is here secured to two uprights 11 which serve to support it.
  • this device is here secured to two uprights 11 which serve to support it.
  • the support effect of the device described in this thesis therefore ideally applies in depth at the sacroiliac joint on the posterior relief of the pelvis above the most posterior point of the posterior aspect of the sacrum with regard to the support of the sacrum, and on the posterior edges of the iliac bones below the PSI of a pelvis seen in profile in vertical position.
  • Such a support device makes it possible to approach as much as possible the optimal point of application for posterior support: the hinge between the iliac bones and the sacrum, lower end of the spine.
  • 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.
  • 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 making 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.
  • 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)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Fats And Perfumes (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP84870076A 1983-06-10 1984-06-08 Sitz Withdrawn EP0130169A1 (de)

Applications Claiming Priority (3)

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

Publications (1)

Publication Number Publication Date
EP0130169A1 true EP0130169A1 (de) 1985-01-02

Family

ID=3862204

Family Applications (2)

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

Family Applications After (1)

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

Country Status (6)

Country Link
EP (2) EP0130169A1 (de)
AT (1) ATE61917T1 (de)
AU (1) AU3067584A (de)
BE (1) BE897027A (de)
DE (1) DE3484344D1 (de)
WO (1) WO1984004873A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003099070A1 (en) * 2002-05-24 2003-12-04 Savvy Physiotherapy Pty Ltd A seating arrangement
GB2400028B (en) * 2002-01-28 2006-04-05 Brock M Walker Sacral support member for seating
US7350869B2 (en) 2003-06-25 2008-04-01 Jennifer Anne Davidson Chair
US10264890B2 (en) 2015-06-29 2019-04-23 Herman Miller, Inc. Back support

Families Citing this family (1)

* 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.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2067806A5 (de) * 1969-11-18 1971-08-20 Lemoine Emilie
GB1250751A (de) * 1967-07-14 1971-10-20
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

Patent Citations (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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2400028B (en) * 2002-01-28 2006-04-05 Brock M Walker Sacral support member for seating
US7878591B2 (en) 2002-01-28 2011-02-01 Herman Miller Inc. Sacral support member for seating
WO2003099070A1 (en) * 2002-05-24 2003-12-04 Savvy Physiotherapy Pty Ltd A seating arrangement
US7350869B2 (en) 2003-06-25 2008-04-01 Jennifer Anne Davidson Chair
US10264890B2 (en) 2015-06-29 2019-04-23 Herman Miller, Inc. Back support

Also Published As

Publication number Publication date
EP0145762A1 (de) 1985-06-26
WO1984004873A1 (fr) 1984-12-20
AU3067584A (en) 1985-01-04
EP0145762B1 (de) 1991-03-27
DE3484344D1 (de) 1991-05-02
BE897027A (fr) 1983-12-12
ATE61917T1 (de) 1991-04-15

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RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SAINT HUBERT, JEAN-LUC

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