US3874726A - Moulded chairs - Google Patents

Moulded chairs Download PDF

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Publication number
US3874726A
US3874726A US355210A US35521073A US3874726A US 3874726 A US3874726 A US 3874726A US 355210 A US355210 A US 355210A US 35521073 A US35521073 A US 35521073A US 3874726 A US3874726 A US 3874726A
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US
United States
Prior art keywords
chair
legs
leg
seat
chairs
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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US355210A
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English (en)
Inventor
Harry Sebel
Dillon Charles Furey
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Sebel Ltd
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Sebel Ltd
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Filing date
Publication date
Application filed by Sebel Ltd filed Critical Sebel Ltd
Application granted granted Critical
Publication of US3874726A publication Critical patent/US3874726A/en
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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
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/04—Stackable chairs; Nesting chairs
    • 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

Definitions

  • ABSTRACT A chair moulded in one piece from a suitable plastics material stacks vertically,. and has a seating area nearly as great as the plan area of the seat, by waisting the back support at its junction with the seat and rear legs, providing the rear legs with an internally directed channel over the greater part of their length which merges at the tops of the legs into the said waisted portion, and making the side edges of the legs in the side planes of the chair substantially vertical.
  • chairs While chairs are known which stack almost vertically and are moulded in onepiece' from plastics material, they do not give the maximum desirableseating area for their overall dimensions in plan. Accordingly for a chair of given maximum dimensions in plan, and it is usually desirable not 'to exceed a maximum width of nineteen inches for a chair used in public places'such as auditoriums, comfort is reduced, chairs also present problems when arranged in rows due to the substantial gap between the chairs at the seat level. This is due to the fact that the legs of conventional, moulded chairs are splayed outwardly. For example, it is a not uncommon requirement for public auditoriums that when chairs are arranged in rows, the chairs must be connected together in groups of, say, five.
  • the present-invention provides chairswhich stack substantially vertically, which are moulded in one piece from a plastics material, and in which the seating area is nearly as great as the plan area of the chair.
  • the sides of adjacent chairs at seat level are close together when put in rows, giving a more convenient row, and making it easier to connect chairs together.
  • the objects of the present invention are achieved by making the chair legs in at least the planes of the chair sides substantially vertical, providing waist-like junctions of the backrest with the seat and rear legs, and into shaping of the rear legs in to merge the contracted waist-like junctions.
  • a substantially vertical stacking chair moulded in one piece from plastics material and having a back support, a seat, rear legs and front legs is characterized in that the side edges of the legs in the side planes of the chair are substantially vertical, the back support atits junction with the seat and the rear legs is contracted in waist-form, and the rear legs have internally directed channels over at least the greater part of their length which merges at the tops of the legs into the contracted portions.
  • FIG. 1 is a perspective view of a chair according to this invention
  • FIG. 2 is a rear elevation of the chair
  • FIG. 3 is a side elevation
  • FIG. 4 is a front elevation
  • FIG. 5 is a bottom plan
  • FIG. 6 is a section, to an enlarged scale, in the line 66 of FIG. 3,
  • FIG. 7 is a side elevation showing two chairs according to FIGS. 1 to 6 with one chair stacked on another, and
  • FIG. 8 is a top plan showing two chairs according to FIGS. 1 to 6 placed side by side.
  • the back support of the new chair nerges with the seat and rear legs, it' is waist-shaped at 9, .10, as is best seen in'FIGS; 4 'and'8.
  • Theflanges' 7 continue downward past the seat as rear flanges of the rear legs 3, 4.
  • the sides of the seat are turned down as skirts 11 with reinforcing beads 12 which beads also extend down the insides of the front and rear legs.
  • the skirts ll merge into the flanges 7 byway of the waist portions 9, 10 so as to form channels l3-which extends down the rear legs at 14 with a slightly diminishing, channel-like crosssection until near the bottoms of the rear legs where the channels cease at 15 and the bottommost portion of th leg is moulded as a solid piece 16.
  • the front legs 5, 6 are also moulded with channels 17 whose cross-section diminishes slightly from top to bottom, the channel ceasing near the bottom of the legs which finish as a solid piece 18.
  • the front of the seat also has a downwardly directed skirt 19 which merges with the front flanges '20 of the front legs.
  • the perimeter of the skirt l9 and flanges 20 is also provided with a thickened strengthening beading 21.
  • the side skirts 11 also merge with the side flanges 22, 23 of the front and rear legs respectively these flanges narrow toward the bottom and nearly disappear at the bottom.
  • a small outward projection 24 extends across each leg channel near the top of the leg, and these projections form stops on which internal projections or ribs 25 of each leg rest when one chair is stacked on another.
  • An essential feature of the invention is that the edges of the legs, in the planes of the two sides, are substantially vertical. This can be seen in FIGS. 2 and'4 where the beadings 12 of the rear legs 3,4 as well as those of front legs 5,6 lie in a vertical plane. As a consequence two chairs can be placed side by side as shown in FIG. 8 with the vertical and horizontal beadings 12 in contact, or nearly so. The adjacent edges 26 of the seats are then about one half inch apart at their closest points. The necessary moulding draft angle in the legs to permit withdrawal of a chair from a mould is provided in the front and rear planes of the legs. This construction enables the seat to occupy most of the space of the chairs and tends to maximize the seat area for a given overall width of chair.
  • the stacking height is determined by projection 24 and cooperating rib 25 by providing a positive stacking height by these means jamming of chairs when stacked is virtually eliminated.
  • a central cavity can be provided in each solid foot 16 extending upwardly from the bottom of the foot.
  • Plastic glides or inserts can be provided each of which has an upwardly directed part which fits into the cavities, and an inverted mushroom base.
  • the inserts may be a force fit into the cavities, or be screwed or otherwise secured in place.
  • the bases of the inserts will be about 2 /2 centimetres thick, and the leading edge of the chair will then be about 44 cms. from the floor.
  • either the front or rear inserts can be replaced by inserts having bases of greater height or thickness, say 5 cm., to give a more relaxed or more vertical seating posture respectively.
  • the chair can readily be adapted for people shorter than normal, for example those wishing to have a leading edge of 42 cms. from the floor, by fitment of inserts which are only /2 cm thick. Postural adjustment can be provided by use of the 2% cm. inserts in either front or rear legs.
  • the side skirts 11 can be used with whatever joining means are used.
  • Outwardly projecting stubs can be moulded into the skirts which abut against each other when the chairs are rowed.
  • One possible joining means are bolts passing through the stubs.
  • the front legs of the chair are the same width as the rear legs it is impossible to keep chairs tidy in an auditorium where the back legs are spaced apart more widely than the front legs.
  • a chair stackable and rowable with an alike chair comprising a single body moulded from plastic material and defining a back support, a seat, rear legs and front legs; the rear and front legs having side edges which de- 4. fine lower parts of side'planes of the chair and said edges and planes being substantially vertical to facilitate rowing of the chair with an alike chair; each year and front leg defining a channel which, in cross-section, is convex toward the inside of the chair, over an upper and at least a greater part of its length, for receiving a corresponding channel-like rear leg of an alike chair stacked thereon; the back support having contracted waist portions adjacent the seat and the rear legs, and the channel defined by the rear legs having top end portions merging into respective, contracted waist portions to facilitate stacking of the chair.
  • a chair as claimed in claim 1 in which the seat hasdownwardly extending front and rear skirts and the legs have flanges merging with said skirts.

Landscapes

  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Sheet Holders (AREA)
US355210A 1972-09-28 1973-04-27 Moulded chairs Expired - Lifetime US3874726A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPB063372 1972-09-28

Publications (1)

Publication Number Publication Date
US3874726A true US3874726A (en) 1975-04-01

Family

ID=3765378

Family Applications (1)

Application Number Title Priority Date Filing Date
US355210A Expired - Lifetime US3874726A (en) 1972-09-28 1973-04-27 Moulded chairs

Country Status (11)

Country Link
US (1) US3874726A (enExample)
JP (1) JPS5651769B2 (enExample)
AU (1) AU472411B2 (enExample)
CH (1) CH561039A5 (enExample)
DE (1) DE2323313C3 (enExample)
ES (1) ES193496Y (enExample)
FR (1) FR2201623A5 (enExample)
GB (1) GB1407878A (enExample)
IT (1) IT991059B (enExample)
SE (1) SE384125B (enExample)
ZA (1) ZA732644B (enExample)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341419A (en) * 1977-12-19 1982-07-27 Harry Sebel Stackable chair with arm rests
US4662678A (en) * 1986-03-07 1987-05-05 Marston, Inc. Stackable booster chair
US5044691A (en) * 1989-03-01 1991-09-03 Grosfillex S.A.R.L. Monolithic armchair made of injected plastic material, stackable with small pitch
US5183311A (en) * 1990-08-08 1993-02-02 Lisco, Inc. Portable high chair/booster seat
USD339005S (en) 1990-04-17 1993-09-07 Grosfillex Sarl Chair
USD340366S (en) 1990-06-14 1993-10-19 Allibert S.A. Chair
US5289596A (en) * 1991-01-30 1994-03-01 Guardian Products, Inc. Commode of unitary construction
WO1994006339A1 (en) * 1992-09-16 1994-03-31 Guardian Products, Inc. Integrally molded stackable commode chair
USD355985S (en) 1993-11-10 1995-03-07 Guardian Products, Inc. Integrally molded stackable shower chair
USD357361S (en) 1993-11-10 1995-04-18 Guardian Products, Inc. Integrally molded stackable shower stool
ES2204207A1 (es) * 2000-06-30 2004-04-16 Montajes Integrales Valencia, S.L. Asiento moldeado perfeccionado.
US20050082441A1 (en) * 2003-10-20 2005-04-21 Gilpatrick Richard J. Frame for pressurized fluid apparatus
US20070188006A1 (en) * 2006-02-14 2007-08-16 Zahner L W Iii Spring chair
US20080116727A1 (en) * 2006-11-22 2008-05-22 Lewis Dorsey Cox Stackable chair assembly
US20110016994A1 (en) * 2009-07-23 2011-01-27 Sebel Furniture Ltd Plastic article and its fabrication
US20110291450A1 (en) * 2010-05-26 2011-12-01 Wonderland Nurserygoods Company Limited Stackable Child Safety Seat
USD777464S1 (en) * 2015-01-30 2017-01-31 Jing Si Pureland Co., Ltd. Foldable chair
US10045629B2 (en) * 2014-10-14 2018-08-14 Wood Designs Stackable leg
USD893212S1 (en) * 2019-02-06 2020-08-18 Homy Casa Limited Chair
US11019925B2 (en) * 2012-01-30 2021-06-01 Viggi Corp. Multi-orientation modular furniture having an energy releasable design

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2584588B1 (fr) * 1985-07-09 1988-06-10 Massonnet Henry Fauteuil de relaxation
US6702391B1 (en) 1995-06-07 2004-03-09 Grant Stipek Furniture with molded frame
SI20401A2 (sl) * 1999-09-10 2001-04-30 JAVOR STOLARNA, proizvodnja pohištva d.o.o. Bač Stol
ES1066971Y (es) * 2007-12-21 2008-07-01 Munoz Manolo Marco Silla doble
WO2009090271A1 (es) * 2008-01-14 2009-07-23 Resinas Olot, S.A. Silla apilable perfeccionada
WO2011061860A1 (ja) * 2009-11-20 2011-05-26 Ghassan Baghdadi 手押し車

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541835A (en) * 1948-12-04 1951-02-13 Knoll Associates Shaped chair
US2936826A (en) * 1956-09-27 1960-05-17 Brunswick Balke Collender Co One-piece chair
US3165355A (en) * 1963-07-30 1965-01-12 Jr Lloyd Hitchcock Universal-fit acceleration protective device
US3586371A (en) * 1969-02-17 1971-06-22 Bofinger Rudolf Baresel Seating arrangement
US3637256A (en) * 1969-06-16 1972-01-25 Shaw Walker Co Chair construction
US3784254A (en) * 1971-09-15 1974-01-08 G Longato Pre-stamped seating device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541835A (en) * 1948-12-04 1951-02-13 Knoll Associates Shaped chair
US2936826A (en) * 1956-09-27 1960-05-17 Brunswick Balke Collender Co One-piece chair
US3165355A (en) * 1963-07-30 1965-01-12 Jr Lloyd Hitchcock Universal-fit acceleration protective device
US3586371A (en) * 1969-02-17 1971-06-22 Bofinger Rudolf Baresel Seating arrangement
US3637256A (en) * 1969-06-16 1972-01-25 Shaw Walker Co Chair construction
US3784254A (en) * 1971-09-15 1974-01-08 G Longato Pre-stamped seating device

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341419A (en) * 1977-12-19 1982-07-27 Harry Sebel Stackable chair with arm rests
US4662678A (en) * 1986-03-07 1987-05-05 Marston, Inc. Stackable booster chair
US5044691A (en) * 1989-03-01 1991-09-03 Grosfillex S.A.R.L. Monolithic armchair made of injected plastic material, stackable with small pitch
USD339005S (en) 1990-04-17 1993-09-07 Grosfillex Sarl Chair
USD340366S (en) 1990-06-14 1993-10-19 Allibert S.A. Chair
US5183311A (en) * 1990-08-08 1993-02-02 Lisco, Inc. Portable high chair/booster seat
US5289596A (en) * 1991-01-30 1994-03-01 Guardian Products, Inc. Commode of unitary construction
WO1994006339A1 (en) * 1992-09-16 1994-03-31 Guardian Products, Inc. Integrally molded stackable commode chair
US5343573A (en) * 1992-09-16 1994-09-06 Guardian Products Inc. Integrally molded stackable commode chair
USD357361S (en) 1993-11-10 1995-04-18 Guardian Products, Inc. Integrally molded stackable shower stool
USD355985S (en) 1993-11-10 1995-03-07 Guardian Products, Inc. Integrally molded stackable shower chair
ES2204207A1 (es) * 2000-06-30 2004-04-16 Montajes Integrales Valencia, S.L. Asiento moldeado perfeccionado.
ES2204207B1 (es) * 2000-06-30 2006-02-16 Montajes Integrales Valencia, S.L. Asiento moldeado perfeccionado.
US20050082441A1 (en) * 2003-10-20 2005-04-21 Gilpatrick Richard J. Frame for pressurized fluid apparatus
US20070188006A1 (en) * 2006-02-14 2007-08-16 Zahner L W Iii Spring chair
US20080116727A1 (en) * 2006-11-22 2008-05-22 Lewis Dorsey Cox Stackable chair assembly
US20110016994A1 (en) * 2009-07-23 2011-01-27 Sebel Furniture Ltd Plastic article and its fabrication
US20110291450A1 (en) * 2010-05-26 2011-12-01 Wonderland Nurserygoods Company Limited Stackable Child Safety Seat
US8382202B2 (en) * 2010-05-26 2013-02-26 Wonderland Nurserygoods Company Limited Stackable child safety seat
US11019925B2 (en) * 2012-01-30 2021-06-01 Viggi Corp. Multi-orientation modular furniture having an energy releasable design
US10045629B2 (en) * 2014-10-14 2018-08-14 Wood Designs Stackable leg
USD777464S1 (en) * 2015-01-30 2017-01-31 Jing Si Pureland Co., Ltd. Foldable chair
USD893212S1 (en) * 2019-02-06 2020-08-18 Homy Casa Limited Chair

Also Published As

Publication number Publication date
AU472411B2 (en) 1976-05-27
DE2323313A1 (de) 1974-04-04
ZA732644B (en) 1974-04-24
IT991059B (it) 1975-07-30
AU5451273A (en) 1974-10-17
FR2201623A5 (enExample) 1974-04-26
SE384125B (sv) 1976-04-26
JPS5651769B2 (enExample) 1981-12-08
GB1407878A (en) 1975-10-01
ES193496Y (es) 1975-02-16
ES193496U (es) 1974-10-16
DE2323313C3 (de) 1979-09-27
JPS4976654A (enExample) 1974-07-24
CH561039A5 (enExample) 1975-04-30
DE2323313B2 (de) 1979-02-01

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