US3389936A - Seats - Google Patents

Seats Download PDF

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Publication number
US3389936A
US3389936A US595508A US59550866A US3389936A US 3389936 A US3389936 A US 3389936A US 595508 A US595508 A US 595508A US 59550866 A US59550866 A US 59550866A US 3389936 A US3389936 A US 3389936A
Authority
US
United States
Prior art keywords
seat
depression
seats
side portions
edge
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
US595508A
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English (en)
Inventor
Drabert Fritz
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
Application granted granted Critical
Publication of US3389936A publication Critical patent/US3389936A/en
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
    • A47C7/16—Seats made of wooden, plastics, or metal sheet material; Panel seats
    • 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
    • A47C7/36—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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/01—Complex metal compounds of azo dyes characterised by the method of metallisation

Definitions

  • a seat comprising a rear portion with a depression and having a rearmost portion adjacent to the rear of the depression which rises in a smooth curve to the rear edge of the seat. Side portions of the seat are disposed adjacent to and laterally of the depression and each side portion rises in a smooth curve to the respective lateral edge of the seat. The seat further has a flat portion at the front and the side portions each slope upwards towards the front portion, the slope decreasing gradually to nil where the side portions meet the front fiat portion.
  • This invention relates to seats.
  • Various existing chair bottoms have a shaped seat which forms a wedge-shaped surface, straight or curved, rising towards the rear, to serve as a support for the pelvis of the person using it.
  • a rear portion having a depression therein, a rearmost portion adjacent to the rear of the depression and rising in a gentle curve to the rear edge of the seat, side portions adjacent to and laterally of the depression, each said side portion rising in a gentle curve to the re spective lateral edge of the seat, and a front flat portion of the seat, the side portions each having a slope upwards towards the front portion which decreases gradually to nil where the side portions meet the front flat portion.
  • That portion of the seat which is right in front, i.e. the frontmost portion and which extends from the absolutely horizontal or fiat portion towards the front edge and the two side edges may have the shape of a double trapezium with a common base line.
  • FIGURE 1 is a perspective view of a seat in accordance with the invention.
  • FIGURE 2 is a longitudinal section along the line I-I in FIGURE 1;
  • FIGURES 3 to 7 are cross-sections along the lines IIII, III-III, IVIV, V-V and V'I-VI in FIGURE 2;
  • FIGURE 8 is a perspective view of another embodiment, the periphery of which differs somewhat from that shown in FIGURE 1.
  • the chair bottom here proposed has a seat which is made, more particularly, of some material which retains its shape, plywood or plastics being prime examples. What is aimed at is the provision of a good posture, resulting from the shape of the seat surface here proposed.
  • the rear portion of the seat contains a depression 7, to accommodate the users tuber ischii.
  • This feature gives freedom of side movement to the users thighs.
  • Region 5 of the front part of the seat is not curved or shaped in any way across the seat.
  • frontmost portion 6 of the seat curves downwards, from region 5 towards the front edge and the two side edges 3 of the seat, to avoid the pressure of a hard edge on the thighs.
  • This novel seat design is medically acknowledged to offer the best seating characteristics.
  • a person sitting for long periods at a time is completely free to alter his posture. He can avoid the wedge effect and sit back, which means that he can avail himself of any desired change in the position of the chairback to shift the surface pressure. He can use the chairback to take his weight and support his body, without needing to dispense with a shaped seat having the advantage of reducing pressure on the muscles round the tuber ischii. Exaggeration of the lumbar curve of the spinal column, which results from excessive strain on the small vertebral joints, due to this wedge effect, is substantially eliminated.
  • the seat described has the advantage that the chair seat enables the user to sit back and avoids the wedge effect, in addition to which the users pelvis is not brought into an unnatural shape.
  • each said side portion rising in a gentle curve to the respective lateral edge of the seat
  • the side portions each having a slope upwards towards the front portion which decreases gradually to nil where the side portions meet the front flat portion.
  • a seat according to claim 1 wherein the periphery of the seat, when projected, has the shape of a double trapezium with a common base line.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Special Chairs (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Testing Of Balance (AREA)
US595508A 1966-04-30 1966-11-18 Seats Expired - Lifetime US3389936A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED33365U DE1943541U (de) 1966-04-30 1966-04-30 Sitz, insbesondere stuhlsitz.

Publications (1)

Publication Number Publication Date
US3389936A true US3389936A (en) 1968-06-25

Family

ID=7041715

Family Applications (1)

Application Number Title Priority Date Filing Date
US595508A Expired - Lifetime US3389936A (en) 1966-04-30 1966-11-18 Seats

Country Status (6)

Country Link
US (1) US3389936A (no)
BE (1) BE688796A (no)
CH (1) CH470866A (no)
DE (1) DE1943541U (no)
FR (1) FR1497221A (no)
GB (1) GB1118698A (no)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463547A (en) * 1967-10-20 1969-08-26 John M Brennan Flexible chair seat
US3638997A (en) * 1970-03-04 1972-02-01 Scott N Shapiro Temporary seat supported by spaced-apart chairs
FR2575539A1 (fr) * 1984-12-28 1986-07-04 Duboys Jean Claude Perfectionnements apportes aux elements de soutien, notamment aux assises ou dossiers de sieges, et a leurs moyens de fabrication
US5887951A (en) * 1995-09-15 1999-03-30 Willingham; W. Preston Orthopedic seating orthosis for correcting posture and restricting gluteal spreading
USD420844S (en) * 1998-09-02 2000-02-22 Ed Keilhauer Seat cushion
US20060103198A1 (en) * 2004-08-05 2006-05-18 Thomas Dettmann Music posture chairs
USD882298S1 (en) * 2017-08-02 2020-04-28 Nrg Innovations, Llc Chair cover
USD884392S1 (en) * 2017-08-02 2020-05-19 Nrg Innovations, Llc Chair cover
USD903392S1 (en) * 2017-05-12 2020-12-01 Herman Miller, Inc. Chair
USD972875S1 (en) * 2020-10-09 2022-12-20 Mobb Health Care Ltd Corporation Unitary swivel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1003633C2 (nl) * 1996-07-18 1998-01-21 Erik Rijk Andre Herbst Universeel gezondheidszitmeubel.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE872831C (de) * 1950-06-11 1953-04-09 Holzwerke Zapfendorf Ges Mit B Koerperstuetze, insbesondere Sitz oder Lehne
FR1159038A (fr) * 1956-10-08 1958-06-23 Perfectionnements aux sièges en matière moulée
US3138404A (en) * 1963-07-29 1964-06-23 Relaxo Bak Inc Auxiliary body support for vehicle seats
US3177036A (en) * 1959-10-17 1965-04-06 Halter Ludwig Seat device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE872831C (de) * 1950-06-11 1953-04-09 Holzwerke Zapfendorf Ges Mit B Koerperstuetze, insbesondere Sitz oder Lehne
FR1159038A (fr) * 1956-10-08 1958-06-23 Perfectionnements aux sièges en matière moulée
US3177036A (en) * 1959-10-17 1965-04-06 Halter Ludwig Seat device
US3138404A (en) * 1963-07-29 1964-06-23 Relaxo Bak Inc Auxiliary body support for vehicle seats

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463547A (en) * 1967-10-20 1969-08-26 John M Brennan Flexible chair seat
US3638997A (en) * 1970-03-04 1972-02-01 Scott N Shapiro Temporary seat supported by spaced-apart chairs
FR2575539A1 (fr) * 1984-12-28 1986-07-04 Duboys Jean Claude Perfectionnements apportes aux elements de soutien, notamment aux assises ou dossiers de sieges, et a leurs moyens de fabrication
EP0189719A1 (fr) * 1984-12-28 1986-08-06 Jean-Claude Duboys Perfectionnements apportés aux éléments de soutien, notamment aux assises ou dossiers de sièges
US5887951A (en) * 1995-09-15 1999-03-30 Willingham; W. Preston Orthopedic seating orthosis for correcting posture and restricting gluteal spreading
USD420844S (en) * 1998-09-02 2000-02-22 Ed Keilhauer Seat cushion
US20060103198A1 (en) * 2004-08-05 2006-05-18 Thomas Dettmann Music posture chairs
US7275788B2 (en) 2004-08-05 2007-10-02 Wenger Corporation Music posture chairs
USD903392S1 (en) * 2017-05-12 2020-12-01 Herman Miller, Inc. Chair
USD882298S1 (en) * 2017-08-02 2020-04-28 Nrg Innovations, Llc Chair cover
USD884392S1 (en) * 2017-08-02 2020-05-19 Nrg Innovations, Llc Chair cover
USD972875S1 (en) * 2020-10-09 2022-12-20 Mobb Health Care Ltd Corporation Unitary swivel

Also Published As

Publication number Publication date
GB1118698A (no) 1968-07-03
FR1497221A (fr) 1967-10-06
CH470866A (de) 1969-04-15
BE688796A (no) 1967-03-31
DE1943541U (de) 1966-08-04

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