EP0167435A1 - Sitz - Google Patents

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Publication number
EP0167435A1
EP0167435A1 EP85401104A EP85401104A EP0167435A1 EP 0167435 A1 EP0167435 A1 EP 0167435A1 EP 85401104 A EP85401104 A EP 85401104A EP 85401104 A EP85401104 A EP 85401104A EP 0167435 A1 EP0167435 A1 EP 0167435A1
Authority
EP
European Patent Office
Prior art keywords
seat
backrest
angle
seat according
parts
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.)
Granted
Application number
EP85401104A
Other languages
English (en)
French (fr)
Other versions
EP0167435B1 (de
Inventor
Pierre Rabischong
Jean Pierre Bel
Pierre Vogel
Albert Palanque
Jean Putscher
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.)
Palanque Albert
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 AT85401104T priority Critical patent/ATE55682T1/de
Publication of EP0167435A1 publication Critical patent/EP0167435A1/de
Application granted granted Critical
Publication of EP0167435B1 publication Critical patent/EP0167435B1/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
    • A47C7/02—Seat parts
    • A47C7/029—Seat parts of non-adjustable shape adapted 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
    • A47C7/144—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions with array of movable supports

Definitions

  • the present invention relates to a new seat of the type comprising a seat part supported by feet and a backrest.
  • One of the aims of the present invention is to provide a seat which makes it possible to ensure better grip of the spine and consequently to reduce back and back pain.
  • the posterior curve pushes back the column in lordosis without avoiding the specific supports. If the user tries to reach the file with the sacrum, it accentuates the lordosis.
  • the supports of the body being made by the ischial tuberosities on the horizontal part of the seat and by a point of the dorsal column on the vertical part, the lumbar column does not have direct support.
  • the ACKERMANN patent describes a seat, the seat part of which consists of several parts, at least three (14, 14a, 14b, 15), the planes of which form angles intended to position the lower limbs, the pelvis and the spine. If Figures 1 to 10 show a good knowledge of the problem, the recommended solution actually results in a molding of the soft parts against a rounded relief in the form of an arch 23, which does not allow a corrective effect on the curvatures of the column vertebral. On the contrary, the different planes (14b, 15,18) force the ischial tuberosities to descend into a "hole” or “hollow” (see Figure 11), which prevents tilting back (see the dotted lines in Figure 8).
  • the GIROFLEX patent is a tilting chair whose backrest can be tilted so that the spine is applied to it by the weight of the body.
  • the part forming the seat 4 is in a single part, including a single plane.
  • the front part 6 is only used for the legs.
  • the seat / backrest angle is fixed at 90 ° C.
  • An X-ray photograph shows a close parallelism between the backrest and the spine proving that the lumbar spine has direct support.
  • the seat according to the invention is of the type comprising a seat part supported by feet and a backrest and is characterized in that the seat part has a first substantially horizontal part and a second part connected to the back, this second part being inclined downward and forming with the backrest, at its corresponding end, an acute angle.
  • the coxal bone pivots around the femoral heads, causing the pelvis to tilt, down, forward, up, back.
  • the pelvis carries with it the fifth lumbar vertebra through the ilio-lumbar ligaments to thus determine a new direction of the vertebral axis up and back in order to erase the lumbar lordosis.
  • Such a seat keeps the spine in an ideal position, that is to say that the spine is parallel to the backrest, so the lumbar spine has direct support.
  • the part connected to the backrest is slightly longer than the other part of the seat, said other front part of the seat being horizontal so that the femurs are kept horizontal.
  • the two parts of the seat form between them, on the concave side, an angle of the order of 150 °.
  • the file forms, with a vertical plane, an angle of around 15 °.
  • the backrest includes an adjustable headrest.
  • the seat can be produced in several pieces: the seat can comprise, at the level of the seat, means for adjusting the length of the first part and the length of the second part inclined downwards and forming, with the backrest, an acute angle.
  • the seat 11 has a curved shape.
  • this seat 11 called “curved” the opposite of what to do, that is to say that the folder 12 of the seat 11 was molded on the shape of the spine 13.
  • the posterior curve 14 pushes back the vertebral column 13 in lordosis without avoiding the point supports. If the user tries to reach the file 12 with the sacrum 7, the lordosis is accentuated.
  • the seat according to the invention highlights the fact that the sacrum 7 comes into contact with the seat 4 and the rear wall of the backrest 5.
  • the ischial tuberosities undergo forces perpendicular to the seat 4 and can no longer slide forward.
  • the seat according to the invention shown in Figures 3, 4 and 5 comprises two front legs 1 and two rear legs 2, said four feet being connected by spacers 3 to give the frame thus formed a certain rigidity.
  • the front legs 1 support a seat 4, while the upper ends of the rear legs are connected to the backrest 5.
  • the seat 4 and the back 5 are, in the embodiment, shown in FIG. 4, in a single rigid piece and said seat 4 has a horizontal part 4a which is extended by an inclined part 4b, these two parts forming between they on the concave side an angle of the order of 150 °.
  • the free end of the part 4b is directly connected to the backrest 5 and the dorsal face of the latter forms, with a vertical plane, an angle ⁇ 0 of the order of 15 °.
  • a headrest 6 adjustable in height.
  • the part 4a can have a length of 20 cm, the part 4b having a length of the order of 23 cm.
  • Such a seat also finds an interesting application for ensuring relaxation and rest during prolonged sitting positions, in particular in transport, at shows, etc.; it can also be used for people with disabilities.
  • the seat according to the invention comprises adjustment means, not shown in the figure, of the length of the first part 4a and of the length of the second part 4b of the seat 4.
  • These means can be sliding tubes, slides, etc.
  • These length adjusting means are associated with common locking means which fix the sliding tubes to the chosen length.
  • Other adjustment means 16 can make it possible to vary and choose the angle 0 (formed by the backrest 5 and the second part 4a inclined downwards from the seat 4.
  • adjustment means 16 can be ball joints or half-shells which pivot around the axes of rotation. Locking means such as nuts or butterflies maintain the angle in the chosen position.
  • Lowering the chin also reduces cervical lordosis and the presence of a headrest, if necessary, ensures alignment of the occiput, scapulum and sacrum.
  • the enormous advantage of the orthopedic chair according to the invention is due to the normalization of the spinal posture in a sitting position, which constitutes the essential condition, in particular in children, for the prevention of deformations of the spine.
  • spinal stabilization the object of which is to keep the spine in a good position, is based on the use of complex muscles, made up of several layers: short intersegmental muscles in depth and muscles long multi-segmentals in area. These muscular actions are regulated automatically and maintained by the tensions generated by the mechanical stretching of the muscles. Any support of the spine therefore has the effect of largely relaxing these muscular actions. If this support is punctual, muscle relaxation leads, in the underlying area, capsulo-ligamentary distensions generating discomfort.
  • the seat according to the invention is perfectly suited for prolonged sitting and for the prevention of vicious postural attitudes which generate, in particular in child, spinal deformities.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Special Chairs (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP85401104A 1984-06-19 1985-06-05 Sitz Expired - Lifetime EP0167435B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85401104T ATE55682T1 (de) 1984-06-19 1985-06-05 Sitz.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8409733A FR2565802B1 (fr) 1984-06-19 1984-06-19 Siege dont la partie d'assise presente une premiere partie, sensiblement horizontale, et une seconde partie, inclinee vers le bas, qui est raccordee au dossier
FR8409733 1984-06-19

Publications (2)

Publication Number Publication Date
EP0167435A1 true EP0167435A1 (de) 1986-01-08
EP0167435B1 EP0167435B1 (de) 1990-08-22

Family

ID=9305269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85401104A Expired - Lifetime EP0167435B1 (de) 1984-06-19 1985-06-05 Sitz

Country Status (4)

Country Link
EP (1) EP0167435B1 (de)
AT (1) ATE55682T1 (de)
DE (1) DE3579267D1 (de)
FR (1) FR2565802B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2651657A1 (fr) * 1989-09-08 1991-03-15 Palanque Albert Siege du type dont la partie d'assise presente deux plans d'appui, le premier est horizontal, le second est en plan incline en contre-pente vers la base du dossier.
US5366273A (en) * 1991-11-02 1994-11-22 Gotthard Bresch Chair or the like
EP0688521A1 (de) 1994-06-22 1995-12-27 Albert Palanque Sitzmöbel mit zahlreichen Einstellmöglichkeiten

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2072977A5 (de) * 1969-12-17 1971-09-24 Giroflex Entwicklungs Ag
FR2241277A1 (en) * 1973-08-20 1975-03-21 Fehlbaum Fa Upholstered chair with adjustable seat and back position - has hinged steel frame enclosed within plastic foam
FR2283647A1 (fr) * 1974-09-06 1976-04-02 Fehlbaum Fa Siege a dossier reglable
DE3138123A1 (de) * 1980-09-29 1982-05-27 Ackermann AB, 11436 Stockholm Sitzmoebel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2072977A5 (de) * 1969-12-17 1971-09-24 Giroflex Entwicklungs Ag
FR2241277A1 (en) * 1973-08-20 1975-03-21 Fehlbaum Fa Upholstered chair with adjustable seat and back position - has hinged steel frame enclosed within plastic foam
FR2283647A1 (fr) * 1974-09-06 1976-04-02 Fehlbaum Fa Siege a dossier reglable
DE3138123A1 (de) * 1980-09-29 1982-05-27 Ackermann AB, 11436 Stockholm Sitzmoebel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2651657A1 (fr) * 1989-09-08 1991-03-15 Palanque Albert Siege du type dont la partie d'assise presente deux plans d'appui, le premier est horizontal, le second est en plan incline en contre-pente vers la base du dossier.
US5366273A (en) * 1991-11-02 1994-11-22 Gotthard Bresch Chair or the like
EP0688521A1 (de) 1994-06-22 1995-12-27 Albert Palanque Sitzmöbel mit zahlreichen Einstellmöglichkeiten
FR2721488A1 (fr) * 1994-06-22 1995-12-29 Albert Palanque Dispositif destiné à s'asseoir comportant de nombreuses possibilités de réglage.

Also Published As

Publication number Publication date
ATE55682T1 (de) 1990-09-15
FR2565802A1 (fr) 1985-12-20
EP0167435B1 (de) 1990-08-22
DE3579267D1 (de) 1990-09-27
FR2565802B1 (fr) 1987-07-10

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