US3770319A - Stool of elastic sheet material - Google Patents

Stool of elastic sheet material Download PDF

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Publication number
US3770319A
US3770319A US00221182A US3770319DA US3770319A US 3770319 A US3770319 A US 3770319A US 00221182 A US00221182 A US 00221182A US 3770319D A US3770319D A US 3770319DA US 3770319 A US3770319 A US 3770319A
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US
United States
Prior art keywords
stool
rim
waist
seat
upper compartment
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
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US00221182A
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English (en)
Inventor
T Ono
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Individual
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Individual
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Filing date
Publication date
Priority claimed from JP496971U external-priority patent/JPS537853Y2/ja
Application filed by Individual filed Critical Individual
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Publication of US3770319A publication Critical patent/US3770319A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C5/00—Chairs of special materials
    • A47C5/12—Chairs of special materials of plastics, with or without reinforcement
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • 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

  • ABSTRACT Fm'eign Applicafim Priority Data A stool molded from elastically deformable synthetic I 3, Japan resin has a generally mushroom hap d h ll Feb. I5, 1971 Japan 46/8188 l d t the top by an upwardly convex seat, the body 1 being internally reinforced by ribs limiting its deforma- 52 us. Cl. 297/461, 297/439 under the weight ofthe A transverse partition [51 vInt. Cl A47c 3/00, A470 9/12 at the waist f the body Separates the interior thereof 58], Field of Search....
  • Mypresent invention relates to a light-weight stool adapted to be mass-produced, e.g., by injection molding, from elastically deformable synthetic resin or other polymeric sheet material.
  • the general object of my invention is to provide a stool of this description which is structurally stable yet sufficiently yieldable to have a pleasant cushioning effect without any extraneous padding.
  • a more particular object is to provide a stool affording comfortable seating even when a user rocks back and forth or otherwise shifts position
  • a deformable body of polymeric sheet material forming a column which broadens upwardly into a large rim and downwardly into a large base from a constricted waist, thusgiving restricted passage may be in the form of one or more pinholes provided in the body between the waist and the seat.
  • the upper and lower body sections may be integral with each other, and with their intervening partition, or may be separately interconnected at that partition, e.g'., by a central bolt traversing the two partition-forming end walls thereof. To prevent relative rotation of these sections in such a case, they are preferably provided with mating peripheral formations suchas teeth or crenellations which may also have a stiffening function.
  • FIG. 1 is a somewhat diagrammatic elevational view 7 partly in section, of a stool embodying my invention
  • FIG. 2A is a top view of the stool with part of its seat broken away to expose its interior;
  • FIG. 2B is a view similar to FIG. 2A of the lower half of the stool shown in FIG. 1;
  • FIG. 3 is a fragmentary cross-sectional view taken on the line III III of FIG. 2A;
  • FIG. 4 is an elevational view of the same stool partly deformed under load.
  • FIG. 5 is a view similar to FIG. 1, illustrating a modification. i
  • FIGS. 1 4 I have shown a stool molded fromthermoplastic material, such as polystyrene or a polyamide having sufficient inherent resiliency to allow for a certain deformation thereof.
  • the stool body is divided into an upper section 1 and a lower section 2, the two sections being of relatively inverted bell-shape so as to define a figure of revolution in the general form of a onesheet hyperboloid centered on a vertical axis.
  • the upper section 1 is closed at its bottom by an end wall 1a defining a transverse partition with an adjoining wall 2a of lower section 2; the two walls are interconnected 9 a column broadening upwardly into an enlarged rim by a central bolt 4 and a wing nut 5 bearing upon a washer 6.
  • Body section 1 is formed with a series of peripherally equispaced radial ribs 1b in the'vicinity of a rim 1: thereof which nests in a peripheral flange 3b of a cover 3 of like plastic material forming a domed seat surface 3a. Between cover 3 and end wall 1a there is confined an air volume V communicating with the outer atmosphere through one or more restricted apertures 1h. At the constricted waist of the body, i.e., in the region of partition la, 2a, section 1 is formed with a multiplicity of inwardly projecting and outwardly recessed teeth 10 accommodating complementary crenellations 2c of section 2. The two body sections are thereby held against relative rotation even if nut 5 should not be tightened sufficiently to prevent such movement.
  • the lower end of section 2 also forms a flange 2e which constitutes a circular base whose diameter,-for the sake of stability, should equal or exceed that'of seat 3.
  • the base 2e is also reinforced by a set of internal peripheral ribs 2b which, as shown in FIG.2A, are an'gularly interleaved with the ribs 1b at the top.
  • Other reinforcing ribs 2g of body section 2 hear from below upon the end wall 2a thereof.
  • a force F eccentrically exerted by a user upon the seat 3 may deform the latter
  • the deflection ofthe seat is cushioned by the slow escape of air from the compartment V through aperture or apertures 1h.
  • air returns to its interior'to restore its original. shape.
  • FIG. 5 I have shown a slightly modified stool of the same general construction with a unitarybody 1' divided into upper andlower compartments by an integral transverse partition la, thereby defining an air space V"'betwee n the upper compartment and a cover 3 which engages a rim. le'of the body and forms an up wardly convex seating surface 3a. Ribs lb at the top and 25' at the bottom again resist excessive deformation.
  • One or more pinholes 1h above partition la enable the throttledescape of air from space V when a user first puts his weight on'the seat.
  • the base 2e has a diameter somewhat greater than that of seat 3'.
  • Astool comprising a tubularbody of elastically deformable polymeric sheet material, said body forming and downwardly into an enlarged base from a constricted waist, partition means at said waist dividing the interior of said body into an upper compartment and a lower compartment, and a seat on said rim closing said upper compartment, said body being formed with internal radial ribs in at least said upper compartment resisting deformation of said body under the weight of a user occupying said seat, said body being further provided with at least one restricted passage spaced from said rim enabling a throttled escape of air from said upper 4.
  • a stool as defined in claim 1 wherein said body has the general configuration of a one-sheet hyperboloid centered on a vertical axis, said passage being a pinhole formed in the hyperboloidal wall of said body above said waist.
  • a stool as defined in claim 5 wherein said partition means comprises a pair of abutting horizontal end walls of said sections.
  • said fastening means comprises a central bolt, said sections being provided with mating peripheral formations preventing relative rotation thereof about said bolt.

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  • Orthopedics, Nursing, And Contraception (AREA)
  • Toilet Supplies (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
US00221182A 1971-02-03 1972-01-27 Stool of elastic sheet material Expired - Lifetime US3770319A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP496971U JPS537853Y2 (enrdf_load_stackoverflow) 1971-02-03 1971-02-03
JP818871 1971-02-15

Publications (1)

Publication Number Publication Date
US3770319A true US3770319A (en) 1973-11-06

Family

ID=26338841

Family Applications (1)

Application Number Title Priority Date Filing Date
US00221182A Expired - Lifetime US3770319A (en) 1971-02-03 1972-01-27 Stool of elastic sheet material

Country Status (5)

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US (1) US3770319A (enrdf_load_stackoverflow)
CA (1) CA931866A (enrdf_load_stackoverflow)
DE (1) DE2147598A1 (enrdf_load_stackoverflow)
FR (1) FR2123995A5 (enrdf_load_stackoverflow)
GB (1) GB1316373A (enrdf_load_stackoverflow)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998774A (en) * 1989-09-15 1991-03-12 Meco Corporation Stool seat
USD366367S (en) 1995-01-03 1996-01-23 Reese Michael S V-base ottoman
US20050215104A1 (en) * 2002-12-09 2005-09-29 Lipniarski David J Indented female blow-molded connector and male connector and method
US20060125294A1 (en) * 2004-11-23 2006-06-15 John Chase Replaceable stool assembly
USD525448S1 (en) * 2005-10-07 2006-07-25 Bel-Art Products, Inc. Corner seat
US7354111B1 (en) * 2006-11-27 2008-04-08 K.H.S. Musical Instrument Co., Ltd. Securing assembly for a drummer's chair
USD595968S1 (en) * 2008-01-18 2009-07-14 John George Korban Swell stool
US20100052398A1 (en) * 2008-08-29 2010-03-04 Gregory Hanusiak Stool with a noncircular support
USD664779S1 (en) * 2010-03-15 2012-08-07 VS Vereinige Spezialmoebelfakriken GmbH & Co. KG Stool
USD666426S1 (en) * 2011-08-31 2012-09-04 Newsom Designs LLC Time out stool
USD670094S1 (en) * 2012-04-04 2012-11-06 Jeanette Prestandrea Children's invertible hourglass timer seat
USD686829S1 (en) * 2012-12-13 2013-07-30 Kore Design LLC Stool
USD703474S1 (en) 2011-07-18 2014-04-29 Sico Incorporated Seat post having a non-uniform cross-section
US9101218B2 (en) 2010-07-19 2015-08-11 Sico Incorporated Seating support system
USD740041S1 (en) * 2014-06-05 2015-10-06 Humanscale Corporation Stool
USD745287S1 (en) * 2014-07-30 2015-12-15 Humanscale Corporation Stool
USD751308S1 (en) * 2014-10-21 2016-03-15 W. K. Wu Products Inc. Chair
USD756139S1 (en) * 2014-06-05 2016-05-17 Humanscale Corporation Stool
US10351024B2 (en) * 2017-11-30 2019-07-16 Ford Global Technologies, Llc Ovoid seating assembly
USD889860S1 (en) * 2019-02-08 2020-07-14 John R. Failing Wobble stool
USD901196S1 (en) * 2019-01-13 2020-11-10 Noriz Group, Inc. Stool
USD917904S1 (en) * 2019-11-02 2021-05-04 39F Usa Inc Stool
USD985951S1 (en) * 2021-01-22 2023-05-16 Laurel Harrington Daisy chair
US11812863B1 (en) * 2022-06-14 2023-11-14 Kinetic Furniture of Vermont, Inc. Active sitting chair
US20230397729A1 (en) * 2022-06-14 2023-12-14 Kinetic Furniture Of Vermont Inc. Stackable active sitting chair
USD1028586S1 (en) * 2020-12-17 2024-05-28 Williams-Sonoma, Inc. Table

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH678388A5 (enrdf_load_stackoverflow) * 1989-04-25 1991-09-13 Hugo Degen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3230909A (en) * 1963-03-18 1966-01-25 Swedish Crucible Steel Company Stool or table
US3312437A (en) * 1961-03-24 1967-04-04 Barth Valerie Tilted stool

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3312437A (en) * 1961-03-24 1967-04-04 Barth Valerie Tilted stool
US3230909A (en) * 1963-03-18 1966-01-25 Swedish Crucible Steel Company Stool or table

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998774A (en) * 1989-09-15 1991-03-12 Meco Corporation Stool seat
USD366367S (en) 1995-01-03 1996-01-23 Reese Michael S V-base ottoman
US20050215104A1 (en) * 2002-12-09 2005-09-29 Lipniarski David J Indented female blow-molded connector and male connector and method
US7234780B2 (en) * 2002-12-09 2007-06-26 Confer Plastics, Inc. Indented female blow-molded connector and male connector and method
US20060125294A1 (en) * 2004-11-23 2006-06-15 John Chase Replaceable stool assembly
US7393049B2 (en) * 2004-11-23 2008-07-01 John Chase Replaceable stool assembly
USD525448S1 (en) * 2005-10-07 2006-07-25 Bel-Art Products, Inc. Corner seat
US7354111B1 (en) * 2006-11-27 2008-04-08 K.H.S. Musical Instrument Co., Ltd. Securing assembly for a drummer's chair
USD595968S1 (en) * 2008-01-18 2009-07-14 John George Korban Swell stool
US20100052398A1 (en) * 2008-08-29 2010-03-04 Gregory Hanusiak Stool with a noncircular support
US7758113B2 (en) * 2008-08-29 2010-07-20 Gregory Hanusiak Stool with a noncircular support
USD664779S1 (en) * 2010-03-15 2012-08-07 VS Vereinige Spezialmoebelfakriken GmbH & Co. KG Stool
US9101218B2 (en) 2010-07-19 2015-08-11 Sico Incorporated Seating support system
USD703474S1 (en) 2011-07-18 2014-04-29 Sico Incorporated Seat post having a non-uniform cross-section
USD666426S1 (en) * 2011-08-31 2012-09-04 Newsom Designs LLC Time out stool
USD670094S1 (en) * 2012-04-04 2012-11-06 Jeanette Prestandrea Children's invertible hourglass timer seat
USD686829S1 (en) * 2012-12-13 2013-07-30 Kore Design LLC Stool
USD740578S1 (en) * 2014-06-05 2015-10-13 Humanscale Corporation Stool
USD756139S1 (en) * 2014-06-05 2016-05-17 Humanscale Corporation Stool
USD740041S1 (en) * 2014-06-05 2015-10-06 Humanscale Corporation Stool
USD745287S1 (en) * 2014-07-30 2015-12-15 Humanscale Corporation Stool
USD751308S1 (en) * 2014-10-21 2016-03-15 W. K. Wu Products Inc. Chair
US10351024B2 (en) * 2017-11-30 2019-07-16 Ford Global Technologies, Llc Ovoid seating assembly
USD901196S1 (en) * 2019-01-13 2020-11-10 Noriz Group, Inc. Stool
USD889860S1 (en) * 2019-02-08 2020-07-14 John R. Failing Wobble stool
USD917904S1 (en) * 2019-11-02 2021-05-04 39F Usa Inc Stool
USD1028586S1 (en) * 2020-12-17 2024-05-28 Williams-Sonoma, Inc. Table
USD985951S1 (en) * 2021-01-22 2023-05-16 Laurel Harrington Daisy chair
US11812863B1 (en) * 2022-06-14 2023-11-14 Kinetic Furniture of Vermont, Inc. Active sitting chair
US20230397729A1 (en) * 2022-06-14 2023-12-14 Kinetic Furniture Of Vermont Inc. Stackable active sitting chair
US12396561B2 (en) * 2022-06-14 2025-08-26 Kinetic Furniture Of Vermont Inc. Stackable active sitting chair

Also Published As

Publication number Publication date
DE2147598A1 (de) 1972-08-10
FR2123995A5 (enrdf_load_stackoverflow) 1972-09-15
GB1316373A (en) 1973-05-09
CA931866A (en) 1973-08-14

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