US3328075A - Base construction for furniture and utility chair - Google Patents

Base construction for furniture and utility chair Download PDF

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Publication number
US3328075A
US3328075A US543928A US54392866A US3328075A US 3328075 A US3328075 A US 3328075A US 543928 A US543928 A US 543928A US 54392866 A US54392866 A US 54392866A US 3328075 A US3328075 A US 3328075A
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United States
Prior art keywords
leg
units
cross
chair
seat
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US543928A
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English (en)
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Don C Albinson
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Individual
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Individual
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Priority to CA815879A priority Critical patent/CA815879A/en
Priority to GB14872/65A priority patent/GB1079556A/en
Priority to BR169273/65A priority patent/BR6569273D0/pt
Priority to CH589565A priority patent/CH438616A/de
Priority to FR15446A priority patent/FR1432222A/fr
Priority to US543928A priority patent/US3328075A/en
Application filed by Individual filed Critical Individual
Priority to BE683466D priority patent/BE683466A/xx
Priority to DE19661529420 priority patent/DE1529420A1/de
Priority to FR87221A priority patent/FR1505010A/fr
Priority to GB4626/67A priority patent/GB1138591A/en
Priority to CH562967A priority patent/CH452135A/de
Application granted granted Critical
Publication of US3328075A publication Critical patent/US3328075A/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
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/12—Theatre, auditorium, or similar chairs
    • A47C1/124—Separate chairs, connectible together into a row
    • 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
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/02—Dismountable chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/02—Dismountable chairs
    • A47C4/028—Upholstered chairs, e.g. metal, plastic or wooden chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/02—Dismountable chairs
    • A47C4/03—Non-upholstered chairs, e.g. metal, plastic or wooden 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
    • A47C5/04—Metal chairs, e.g. tubular
    • A47C5/06—Special adaptation of seat upholstery or fabric for attachment to tubular chairs
    • 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

Definitions

  • the present invention relates to improvements in base constructions for furniture, more particularly relates to improved utility seating units, bench units, table units, etc., capable of being permanently or temporarily joined with like or dissimilar units in an orderly row or placed atop like units in a stable stack for storage or transport.
  • folding type chairs have filled this need.
  • folding chairs are very uncomfortable to sit in for any length of time.
  • folding chairs are somewhat unstable and easily moved. This is particularly annoying in schools and school auditoriums where it is desired to maintain the utility chairs in orderly rows.
  • non-folding chairs have been developed for the same utility purposes.
  • the non-folding chairs are much more comfortable than conventional folding chairs and include side extensions whereby the chairs may be coupled together in orderly rows on either a permanent or temporary basis.
  • non-folding chairs suffer from several problems which to date have severely limited their acceptance as a substitute for conventional folding chairs. Since the chairs are not foldable, they present a storage problem when not in use. To a great extent this has been overcome by designing the chairs to be stackable one atop another. Unfortunately, present designs for non-folding chairs do not accommodate stacking of many chairs without creating an unstable column. Thus, in practice, appreciably more space is required to store nonfoldable than conventional folding type chairs.
  • non-foldable seating units or other furniture units, which can be easily joined together in an orderly row on either a permanent or temporary basis and which may be placed one atop the other in a stable stack during transport from one location to another or to storage.
  • a further object of the present invention is to provide a stackable seating unit, or other furniture unit, which is light-weight and sturdy, yet simple indesign and inexpensive to manufacture.
  • An additional object of this invention is to provide a seating unit or other furniture unit system which may be shipped in a light-weight, compact package of component parts, and which upon reaching its destination may be easily and quickly assembled into a rugged,
  • Another object of the present invention is to provide a means for rigidly and permanently joining two or more stackable seating units or other furniture units together wherein one leg is common to two adjacent furniture units, the provision of a common leg between two adjacent furniture units enabling substantial cost reduction to be effected without loss of structural strength, or loss of stacking stability.
  • Still another object of the present invention is to provide seating units which are stackable one atop another without marring the outer surfaces of the seating portions of the units.
  • Yet another object of the present invention is to provide a stackable chair which is easy to clean and which requires little servicing.
  • FIGURE 1 is a perspective view of one form of stackable utility chair of the present invention with a broken line representation of an identical chair adjacent the utility chair and removably coupled thereto;
  • FIGURE 2 is a side view of one form of stackable utility chair of the present invention with a broken line representation of an identical chair atop the utility chair to illustrate the position of the chairs when stacked for storage;
  • FIGURE 2a is a sectional side view of the seating portion of a utility chair embodying one form of the present invention, taken along a marginal edge, illustrating the inner construction of the seat and back of the chair as well as the means for coupling the seat to the back;
  • FIGURE 3 is a partial sectional view along the line 3-3 of FIGURE 1, illustrating the mode of coupling utility chairs in an orderly row;
  • FIGURE 4 is a partial sectional view along the line 4-4 in FIGURE 1, illustrating the mode of coupling the seat to a cross piece extending under the seat, as well as to an angle connector supporting the seat and the back;
  • FIGURE 4a is a bottom view of the left rear corner of the seat with the angle connector removed;
  • FIGURE 5 is a sectional view along the lines 55 in FIGURE 4, illustrating the mode of coupling the angle connector to the cross piece;
  • FIGURE 6 is a perspective view of the utility chair of the present invention with the component parts slightly separated to illustrate the mode of assembling the chair;
  • FIGURE 7 is a partial sectional view similar to FIG- URE 3 taken along the line 7-7 showing a modification of one end of the base construction of my invention
  • FIGURE 8 is a perspective view of a modified form of stackable chair units of the present invention, showing the common leg coupling feature between adjacent chair units;
  • FIGURE 9 is a partial sectional view, taken along the line 9-9 of FIGURE 8, illustrating the common leg coupling adjacent utility chairs in an orderly row;
  • FIGURE 10 is a partial sectional view, taken along the lines 1010 in FIGURE 8;
  • FIGURE 11 is an exploded perspective view of a leg assembly and cross pieces of the common leg coupling modification of this invention.
  • FIGURE 12 is a partial sectional view similar to FIG- URE 9, showing a modification of the base structure of this invention.
  • FIGURES 1-6 of the drawings relating to a single stackable seating unit, and relating also to a means for removably coupling (or ganging) said seating unit to adjacent seating or other furniture units (such as an end table).
  • the seating unit shown in FIGURES 16, is desig nated generally by the numeral 10.
  • the adjacent seating unit shown in FIGURE 1 by a broken line representation, is designated generally by the numeral
  • the seating and/or utility chair 10 includes a structure or portion 12 supported by a leg or base structure 14.
  • the seating portion 12 is body-contoured and of a two-piece construction including a seat or seating shell 16 and a back or back shell 18 fixedly joined by a pair of cast aluminum angle connectors 20 and 22.
  • the two-piece construction has several advantages over the one-piece construction of conventional nonfoldable utility chairs.
  • the two-piece construction also provides more room for the buttocks of the occupant and allows free air circulation between the back and seat of the chair to aid in seating comfort, particularly during hot weather. Further, water drains freely from the seating structure to shed rain when used outdoors, and to simplify cleaning of the chairs when formed of a waterproof material.
  • the seat 16 and the back 18 are preferably molded polyethylene or polypropylene plastic pieces hav ing high strength, yet slight flexibility to further aid seating comfort.
  • the back 18 is slightly hollow to comfortably receive the back of an occupant
  • the seat 16 includes substantially flat upper marginal surfaces 24 and 26 adjacent depressed portions 28 and 30 for comfortably receiving the upper legs and buttocks of the occupant.
  • the flat marginal surfaces allow the chair to be turned over and stably rested on a table top or counter while the floor under the chair is being cleaned.
  • the back 18 includes upwardly extending left and right side cavities or sockets 32 and 34 along the upwardly extending sides of the back.
  • the cavities are formed in the molding of the back and are preferably elliptical in cross section with upwardly and inwardly converging sidewalls.
  • the cavities 32 and 34 are upwardly inclined toward each other.
  • the angle of incline of each upwardly extending cavity is somewhat critical to the design'of the present invention. In particular, it has been found that a substantially 10 or greater angle of incline from true vertical for each cavity effectively locks the upwardly extending upper arms 36 and 38 of the angle connectors 20 and 22 within the cavities 32 and 34, respectively.
  • a positive arm-in-socket lock is thereby formed between the back 18 and the angle connectors 20 and 22 when the angle connectors are also coupled to the leg assembly 14.
  • the positive locking action of the upper arms 36 and 38 within the inclined cavities 32 and 34 may be improved by serrations 40 formed in each arm.
  • the arms themselves are upwardly tapered to allow easy insertion into the cavities 32 and 34. Once within the cavities, however, the serrations bite into the sidewalls of the cavities and resist removal of the back 18 from the angle connectors 20 and 22.
  • the angle connectors 20 and 22 include forwardly extending, substantially horizontal arms or lower extremities 42 and 44.
  • the lower arms 42 and 44 are forwardly tapered and toe-in towards each other slightly after the insertion of the upper arms 36 and 38 into the cavities 32 and 34.
  • the cavities 46 and 48 are formed in the molding process of the seat 16, are preferably elliptical in cross section and are tapered to tightly receive the lower arms 42 and 44 of the angle connectors, as shown in FIGURES 2a, 4 and 6.
  • the forwardly extending cavities 46 and 48 in the seat 16 each have their rearward open ends 50 terminating a predetermined distance from the rear edge 52 of the seat 16.
  • a pair of tabs 54 extend from the opposite sides of the seat 16 and at the rear edge 52 thereof.
  • Each of the tabs 54 and the open ends 50 of each side cavity 46, 48 define opposing shoulders for tightly receiving cleats 56, 58 extending from and along the lower surfaces of the lower arms 44 and 42, respectively.
  • the tabs 54 are slightly flexible and snap around the ends of the cleats 56 and 58 as the lower arms are slipped into the cavities 46 and 48. Since the cleats 56 and 58 are fixably secured to the lower arms 42 and 44, the snapping action of the tabs 54 locks the seat 16 to the lower arms to form a permanent arrn-in-socket connection between the lower arms and the seat.
  • the permanency of the connection of the seat 16 to the angle connectors 20 and 22 may be improved by the addition of serrations 60 and 62 at the bottom surfaces of the forwardly extending arms 44 and 42 beyond the cleats 56 and 58.
  • the serrations are shaped to not interfere with the easy insertion of the arms into the corresponding cavities in the seat 16, yet dig into the inner surfaces of the cavity walls to prevent removal of the seat from the angle connectors.
  • the seat 16 and the back 18 are thus firmly secured to the angle connectors 20 and 22 and form a permanent seating unit for attachment to the leg structure 14.
  • vertical openings 64 and 66 extend upwardly through each of the cleats 56, S8 and the lower arms of the angle connectors 20 and 22.
  • the openings 64, 66 have enlarged head portions at the upper surfaces of the lower arms 4-2, 44 for receiving nuts 68.
  • the nuts do not rotate within the openings 64, 66.
  • the nuts may have a serrated outer perimeter and may be pressed into head portions of the openings to resist turning, or the head portions may be hexagonal in shape to receive hexagonal nuts.
  • the nuts 68 are position'ed into the enlarged heads of the vertical openings 66 and 64 prior to the insertion of the lower arms into the corresponding cavities in the seat 16.
  • the nuts 68 are thus locked within the vertical openings 64, 66 under the seat 16 and are adapted to receive screws 70 to couple the angle connectors 21 and 22 to the leg structure 14.
  • screws 74 pass upwardly through aligned openings in a channeled, cast aluminum cross piece 72 extending under and beyond the sides of the seat 16, thence through the cleats 56, 58 and screw into the nuts 68.
  • the screws thus tightly and firmly secure the lower arms 42 and 44 of the angle connectors and hence the seating structure 12 to the cross piece '72 with the cleats firmly pressing against the upper surfaces of the cross piece, as best shown in FIGURE 2a.
  • the cross piece 72 is bowed sufficiently downward to give clearance when the seat 16 is occupied. Also, opposite end portions 74 and 75 of leg brace or cross piece 72 extend beyond the sides of the seat 16 and terminate generally in vertical end sections or flanges 76 and 78 having openings 80 therein. As will be described later herein, with reference to FIGURE 7, a modified cross piece 721), having slightly sloping flanges may be provided. Whether the end surfaces of a cross piece are substantially vertical or nearly vertical, the end surfaces are usually flat and dimensioned so as to index with portions of leg assemblies 82 and 84, respectively, as will be seen.
  • Each leg assembly 82 and 84 is of cast aluminum and includes a front leg 86 and a rear leg 88 joined by a substantially horizontal, thickened connector or bridge portion 90.
  • the bridge or connecting portions 90 each have an inner rectangular recess 9-2 and an identical outer rectangular recess 94 with communicating openings 96 and 98 which align with the openings 80 in the end flanges 76 and 78 of cross piece 72 when the rectangular flanges are indexed with correspondingly rectangular recesses 92 of the leg assemblies, as shown in FIGURE 3.
  • the leg assemblies may then be fixedly secured to the cross piece 72 by screws passing through the aligned openings 80, 96 and 80, 98.
  • leg assemblies are identical and symmetrical about the bridge portion 90 and that the upper edges of the bridge portions extend beyond the sides of the seat 16.
  • the symmetry of the leg assemblies allows for free interchange between the left and right side legs of the utility chair of the present invention, thereby simplifying both the manufacture and assembly of the chair.
  • the sideward extension of the bridge portion 90 of the leg assemblies beyond the sides of the seat 16 allows the utility chairs of the present invention to be stacked in stable columns without scratching or wearing the seat structure of the chair.
  • the base structure shown in FIGURES l-6 enables the legs 82 and 84 to be substantially parallel to one another. This is because the end flanges 76, '78 of the leg brace 72 are substantially vertical. If, for some reason, it is desired to have the legs of the base structure spread slightly apart, the leg brace or cross piece 72 is slightly modified, as shown by reference to FIGURE 7.
  • the modified cross piece of FIGURE 7 is designated by the numeral 72b.
  • the slope is properly characterized as generally vertical in nature, since the slope is only of the order of 05 to 1.5 but it is suflicient to spread the legs 82 and 84 apart a very slight amount.
  • a trim plate 93 (FIGURE 7) having a smooth, continuous exterior may be positioned in an outer recess 94 with screws passing through the aligned openings to secure the trim plate to the leg assemblies and the leg assemblies to the cross piece 72.
  • the trim plates may have a socket or hook portion to receive removable arms, book racks, or other special fittings, as will be described.
  • Interlocking of the individual chair or furniture unit is achieved by either a readily dismountable hook and eye coupling, as will be described, or by a permanent fastening of one furniture unit of this invention to an adjacent furniture unit to form rigid multiples of two, three, or more, if desired.
  • Each multiple unit may be provided with hook and eye couplings, as will be described, in order to gang a long series of multiple furniture units together.
  • FIGURES 1, 3 and 6 particularly wherein molded plastic end pieces 102 and are secured in outer recesses 94 of legs 82, 84.
  • the end pieces 102 and 100 are fastened by means such as screw 104 passing through the aligned openings 80, 96 and 80, '98 in the leg assemblies 82, 84 and cross piece 72 and through corresponding openings in said end pieces.
  • the screws receive nuts 105 which press against the inside of the end flanges 76 and 78 of the cross piece 72 to firmly clamp the leg assemblies to the cross piece.
  • the end pieces 100 and 102 include extensions which allow the chairs to be releasably interlocked to prevent inadvertent displacement of the chairs relative to one another.
  • the interlocking means take the form of a hook member 106 extending from the end piece 102 and an eye or socket member 108 extending from the end piece 100.
  • the hook member 106 includes a horizontal extension 110 from the end piece 102 and a downwardly extending outer hooking lip 112, while the eye member includes a horizontal extension 114 having an elongated opening 116 adapted to receive a hooking lip extending from an identical chair (see FIGURE 3).
  • the chairs are first :placed side by side.
  • One of the chairs is then raised slightly and the hooking lip of the chair lowered into the opening in the eye member of the other chair. This operation is repeated to add as many chairs as desired to an orderly row.
  • the hook and eye interlocking method provides a quick and easy method for coupling and decoupling the utility chairs of this invention.
  • the furniture units of the present invention are stored by stacking one atop another.
  • units of the present invention may be stacked in stable columns of twenty or more. This is accomplished by the design of the leg assemblies and their positioning beyond the side edges of the seats of the units.
  • the front leg of each assembly is disposed at an angle relative to the rear leg of the assembly, whereby the legs of the unit may be vertically telescoped over the legs of an identical unit.
  • the front and rear legs are angled from the bridge portions 90 relative to each other such that the lower surfaces 118 of the bridge portions fit over, and rest firmly on, the upper surfaces 120 of the bridge portions of an identical unit, when the two units are stacked one atop another (see FIGURE 2).
  • the center of gravity of the unit is very close to the center of the supporting upper surfaces of the bridge portion, making for inherent stability.
  • the legs are inwardly tapered from the bridge portions 90 and terminate in plastic guides 122 for contacting the floor. The actual taper of the legs and the overlap of the guides beyond the sides of the'legs is such that when identical units are stacked atop each other, the inner edges of the guides engage the outer surfaces of corresponding legs of the lower chair adjacent the lower ends of the legs. This makes for an extremely stable stacking arrangement and prevents the legs of the stacked units from scratching each other.
  • the location of the legs with their bearing surfaces beyond'the side edges of the seating surface, table surface, etc. prevents the surface of the stacked units from being rubbed or worn during stacking.
  • a lateral clearance of approximately /s inch is provided between the bridge portions of the leg assemblies and the side edges of the usable surface of the unit. This clearance facilitates the stacking of the units and allows for slight side-to-side movement of the units as stacked.
  • each individual unit thereof has a leg that is common with the immediately adjacent individual unit, thereby eliminating one leg for every series of two units.
  • the series of three has two legs in com-mon, and so on.
  • the rigidity and strength of the multiple units are, however, not significantly diminished, even though there is a substantial saving in material 'because of the leg recess-cross piece and end flange cooperation characteristic to all embodiments of this invention.
  • the assembly of permanent multiple units is not limited to two seating units, and neither is there a limitation with respect to whether the units be seating units, table units or bench units. In all cases, however, the leg and cross piece assemblies utilized will be substantially identical.
  • the units 10a comprise outer leg assemblies 82a and a common leg assembly 84a, the pair of leg assemblies 82a, 84a so formed being interlocked by a pair of cross pieces, as will be described.
  • the leg assembly 82, 84 of the individual seating units of FIGURES l-6 and the leg assemblies 82a, 84a are identical and are thus each provided with oppositely facing identical recesses 92a and 92b in the bridging portion 90a of the leg.
  • These recesses 92a, 92b are identical with inner and outer recesses 92 and 94 of each of the legs 82 and 84 of the individual units shown in FIGURES l-6.
  • the cross pieces 72a of the multiple units are identical with cross piece 72 of each individual chair in FIGURES 16.
  • the left and right end flanges 76a and 78a, respectively, of each cross piece 72a closely interfit within each pair of opposed recesses 92a, 9211, provided by leg assemblies 82a, 84a, and the cross pieces 72a are firmly fastened within the recesses 92a, 92b by fastening means passing through aligned openings 80a, 96a, and 80a, 98a, the fastening means being such as screws 104a and nuts 10%.
  • each leg assembly has identical left and right recesses 92a and 92b and all the cross pieces 72a have identical end flanges 76a and 78a with vertical or near vertical faces which index with such left and right recesses.
  • the screws 104a receive the nuts 10417 which press against the inside of the end flanges 76a or 78a of the cross pieces 72 to firmly clamp the leg assemblies to the adjacent cross pieces, as shown in FIGURE 9.
  • FIGURES 8l1 While a pair of units sharing a single common leg is shown in FIGURES 8l1, it will be seen that any convenient number of units can be permanently joined in the manner described. Multiples of three, four or five are thus contemplated and within the scope of this invention. Further, these multiple units need not all be seating units, for it will be readily seen that a bench top, table top, or the like can be fastened to a pair of leg structures 82a, 84a and cross piece 72a, rather than a seating unit.
  • cross piece end flanges 76, 78 of individual units may be provided with a slight outwardly sloping surface from top to bottom, rather than a perfectly vertical surface in order that the legs 84, 82 be spread slightly.
  • the end'flange 76b of cross piece 72b in FIGURE 7 is shown having this modified surface.
  • the modified cross piece 72b is employed to build up the multiple units, such as shown in FIGURE 8, flat, thin (e.g. .030) filler strips, plates or pieces are provided, dimensioned so as to be readily insertable in the uppermost portions of each recess 92a, 92b of each common leg of a multiple unit.
  • This feature is shown in FIGURE 12.
  • the filler pieces 150 are held in their initially placed, uppermost position within the recesses 92a, 92b.
  • the effect of the filler pieces 150 is to render the common leg 84a substantially vertical.
  • the filler pieces 150 need not be employed to render the outermost legs of a multiple unit vertical, although, if desired, a single filter piece could be provided and placed, just as described, but in the inner recess of the outermost legs of a unit.
  • FIGURES 7 and 12 where the modified cross piece structure 72!) of FIGURES 7 and 12 is employed in building up multiple units, the filler pieces 150 are normally added to render the common leg portions substantially vertical, while the outermost legs of each multiple unit are spread slightly outward due to the canting of the end flanges of the cross piece 72b, as described and shown with reference to FIGURE 7.
  • the present invention provides a comfortable single utility unit and permanent multiple seating units of sturdy yet simple and inexpensive design which are capable of stacking with identical units in relatively high stable columns without marring or unnecessarily wearing the exterior of the units and which may be easily releasably joined together on a permanent or temporary basis in orderly rows.
  • a furniture unit having a base support construction adapted to be stacked one upon another, the combination of:
  • a cross piece extending under said unit and including opposing generally vertically extending sections, each having at least one opening therein;
  • leg assemblies each including an upper cross connecting portion between front and rear legs, said cross connecting portions each having an inner recess generally corresponding dimensionally to the dimensions of said end sections of said cross piece, to thereby stably receive said end sections, with said openings in said end sections being aligned with corresponding openings in said cross connecting portions, said front and rear legs of each leg assembly being angled relative to each other such that the lower surface of said cross connecting portion fits over and rests firmly on the upper surface of the cross connecting portion of an identical leg assembly when stacked atop the said identical leg assembly;
  • each of said end sections of said cross piece has an outwardly sloping surface from top to bottom.
  • each of said end sections of said cross piece has an outwardly sloping surface from top to bottom of between about /2 to 1 /2 5.
  • each of said leg assemblies has an outer recess in said upper connecting portions thereof corresponding dimensionally to the dimensions of said end sections of said cross piece.
  • each of said leg assemblies has an outer recess in said upper connecting portion of each leg assembly substantially identical with and aligned with said inner recess.
  • a cross piece extending under said furniture unit and including opposing generally vertically extending end sections having at least one opening therein;
  • leg assemblies each including an upper bridging portion between front and rear legs, said bridging portions each having inner and outer side recesses, said inner recesses receiving said end sections of said cross piece with said openings in said end sections aligned with corresponding openings in said bridging portions, said front and rear legs of each leg assembly being angled relative to each other such that the lower surface of said bridging portion fits over and rests firmly on the upper surface of an identical leg assembly when stacked atop said identical leg assembly;
  • each of said leg assemblies of said base construction is substantially identical in configuration to the other so as to be interchangeable.
  • a furniture unit having a base construction adapted to be stacked one upon another or releasably interlocked in a row, the combination of:
  • a cross piece extending under said furniture unit and including opposing generally vertically extending end sections having at least one opening therein;
  • leg assemblies each including an upper bridging portion between front and rear legs, said bridging portions each having inner and outer recesses, said inner recesses receiving said end sections of said cross piece with said openings in said end sections aligned with corresponding openings in said bridging portions, said front and rear legs of each leg assembly being angled relative to each other such that the lower surface of said bridging portion fits over and rests firmly on the upper surface of an identical leg assembly when stacked atop said identical leg assembly;
  • a multiple furniture unit adapted to be stacked one upon another which comprises:
  • each cross piece including opposing generally vertically extending sections
  • leg assemblies each including an upper cross connecting portion between front and rear legs, each of said cross connecting portions having a left and a right recess in alignment with each other and each recess corresponding dimensionally to the di mensions of said end sections of said cross pieces, said leg assemblies including a left leg assembly, a central leg assembly and a right leg assembly with the right recess of said left leg assembly and the left recess of said central leg assembly stably receiving the opposing end sections, respectively, of a first cross piece, and the right recess of said central leg assembly and the left recess of said right leg assembly stably receiving the opposing end sections of said other cross piece, said front and rear legs of each leg assembly being angled relative to each other such that the lower surface of each of said cross connecting portions fits over and rests firmly on the upper surface of the cross connecting portion of an identical leg assembly when stacked atop said identical leg assembly; and fastening means securing said leg assemblies to their respective cross pieces.
  • each of said end sections of said cross pieces has an outwardly sloping surface from top to bottom.
  • each of said end sections of said cross pieces has an outwardly sloping surface from top to bottom of between about /2 and 1 /2 16.
  • a seat including forwardly extending cavities along opposing sides of said seat with open ends of said cavities spaced at predetermined distance from a rear edge of said seat;
  • a back including upwardly extending cavities along opposing edges of said back corresponding to said opposing edges of said seat;
  • a pair of angle connectors each having a first vertically extending arm in an upwardly extending cavity and a second forwardly extending arm in a forwardly extending cavity;
  • a cross piece for extending under a seat and including opposing vertically extending flanged end sections having openings therethrough;
  • leg assemblies each including an upper cross connecting portion between front and rear legs, said cross connecting portions each having inner and outer side recesses, said inner recesses receiving and supporting said flanged end sections of said cross piece with said openings in said end sections aligned with corresponding openings .
  • said cross connecting portions, said front and rear legs of each leg assembly being angled relative to each other such that the lower surface of said cross connecting portion fits over and rests firmly on the upper surface of an identical leg assembly when stacked atop said identical leg assemy;
  • a chair construction adapted to be stacked one upon another or releasably interlocked in a row comprismg:
  • a seat having cavities along opposing sides
  • a pair of identical leg assemblies each including an upper cross connecting portion between front and rear legs, said cross connecting portions each having identical inner and outer side recesses, said inner recesses receiving and supporting said flanged end sections of said cross piece with said openings in said end sections aligned with corresponding openings in said cross connecting portions, said front and rear legs of each leg assembly being angled relative to each other such that the lower surface of said cross connecting portion fits over and rests firmly on the upper surface of the cross connecting portion of an identical leg assembly when stacked atop said identical leg assemy;
  • a chair construction comprising:
  • a seat including forwardly extending cavities along opposing sides of said seat with open ends of said cavities spaced at predetermined distances from a rear edge of said seat;
  • a back including upwardly extending cavities along opposing edges of said back corresponding to said opposing edges of said seat, said upwardly extending cavities being upwardly inclined toward each other;
  • a pair of angle connectors each having a first vertically extending arm in an upwardly extending cavity and a second forwardly extending arm in a forwardly extending cavity;
  • leg assemblies each including an upper cross connecting portion between front and rear legs, said cross connecting portions being coupled to opposite end portions of said cross piece and said front and rear legs of each leg assembly being angled relative to each other such that the lower surfaces of said cross connecting portions fit over and rest firmly upon upper surfaces of the cross connecting portions of identical leg assemblies when two of the chairs are stacked.
  • the chair construction of claim 23 including a hook extending from said cross connecting portion of one of said leg assemblies and an eye member extending from said cross connecting portion of the other of said leg assemblies for receiving a hook extending from an identical chair when said chairs are next to each other.
  • the chair construction of claim 24 including glides on the lower end of said legs for engaging outer surfaces of corresponding legs of an identical chair near the bottom of said corresponding legs when said chair is stacked atop said identical chair.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Combinations Of Kitchen Furniture (AREA)
  • Special Chairs (AREA)
US543928A 1964-05-01 1966-04-20 Base construction for furniture and utility chair Expired - Lifetime US3328075A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
CA815879A CA815879A (en) 1964-05-01 Utility chairs
GB14872/65A GB1079556A (en) 1964-05-01 1965-04-08 Chairs
BR169273/65A BR6569273D0 (pt) 1964-05-01 1965-04-28 Construcao de cadeira
CH589565A CH438616A (de) 1964-05-01 1965-04-28 Stuhl
FR15446A FR1432222A (fr) 1964-05-01 1965-04-30 Chaise perfectionnée pour services publics
US543928A US3328075A (en) 1964-05-01 1966-04-20 Base construction for furniture and utility chair
BE683466D BE683466A (de) 1964-05-01 1966-06-30
DE19661529420 DE1529420A1 (de) 1964-05-01 1966-11-23 Stapelbarer Stuhl
FR87221A FR1505010A (fr) 1964-05-01 1966-12-13 Chaise perfectionnée pour services publics
GB4626/67A GB1138591A (en) 1964-05-01 1967-01-31 Multiple furniture including multiple chair units
CH562967A CH452135A (de) 1964-05-01 1967-04-20 Reihenmöbel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36418464A 1964-05-01 1964-05-01
US543928A US3328075A (en) 1964-05-01 1966-04-20 Base construction for furniture and utility chair

Publications (1)

Publication Number Publication Date
US3328075A true US3328075A (en) 1967-06-27

Family

ID=41011920

Family Applications (1)

Application Number Title Priority Date Filing Date
US543928A Expired - Lifetime US3328075A (en) 1964-05-01 1966-04-20 Base construction for furniture and utility chair

Country Status (8)

Country Link
US (1) US3328075A (de)
BE (1) BE683466A (de)
BR (1) BR6569273D0 (de)
CA (1) CA815879A (de)
CH (2) CH438616A (de)
DE (1) DE1529420A1 (de)
FR (2) FR1432222A (de)
GB (2) GB1079556A (de)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497262A (en) * 1967-09-12 1970-02-24 S Anonima Castelli & C Sa Stackable,disassemblable chair
US3610686A (en) * 1969-10-10 1971-10-05 Shelby Williams Ind Cast-aluminum stack chair
US3614158A (en) * 1969-12-05 1971-10-19 Tiffany Industries Chair ganging device
US3669497A (en) * 1969-02-17 1972-06-13 Henry Massonnet Chairs
US3697130A (en) * 1971-04-20 1972-10-10 American Seating Co Connector assembly for chairs
US3734561A (en) * 1971-06-03 1973-05-22 American Seating Co Sled base frame chair
US3742869A (en) * 1971-07-29 1973-07-03 Fixtures Mfg Corp Table for vertical stacking and horizontal ganging
US3758155A (en) * 1972-03-16 1973-09-11 Interlake Inc Gang chair construction
US3850476A (en) * 1972-08-29 1974-11-26 Hille Int Ltd Tip-up seating
US4305617A (en) * 1979-05-14 1981-12-15 Interroyal Corp. Chair construction
US4311337A (en) * 1978-06-09 1982-01-19 Oswald Brunn Combination furniture
US4400031A (en) * 1981-03-12 1983-08-23 Virco Mfg. Corporation Interlocking chair
US4657302A (en) * 1985-03-11 1987-04-14 Fixtures Manufacturing Corporation Lounge construction
US5129703A (en) * 1989-12-29 1992-07-14 Wiesner-Hager Kg Chair structure for the assemblage of chair rows
USD378553S (en) * 1995-09-12 1997-03-25 Herman Miller, Inc. Chair
US6206469B1 (en) * 1998-07-16 2001-03-27 Shelby Willliams Industries, Inc. Stackable side-by-side ganging chair
ES2160003A1 (es) * 1998-06-24 2001-10-16 Conalsa S A Componentes para bancos modulares y otro mobiliaro urbano, asi como el mobiliario con ellos construido.
US6338528B1 (en) 2000-03-22 2002-01-15 Michigan Tube Swagers & Fabricators, Inc. Combination stiffener and ganger bracket for chair
US20030201661A1 (en) * 2002-04-24 2003-10-30 Ware R. Duane Ganging device for stackbar of stackable chair
US20050012369A1 (en) * 2003-07-17 2005-01-20 Mendenhall Andrew B. Chair stacker apparatus
US20050012371A1 (en) * 2003-07-17 2005-01-20 Mendenhall Andrew B. Stackable chair with chair ganger apparatus
US20060103198A1 (en) * 2004-08-05 2006-05-18 Thomas Dettmann Music posture chairs
US20080277982A1 (en) * 2007-05-09 2008-11-13 Kerstin Bartlmae Stackable chair
US20090045666A1 (en) * 2007-08-14 2009-02-19 West & Knowles Design And Engineering, L.L.C. Furniture Member Attachment System
US7775600B2 (en) 2006-04-28 2010-08-17 Steelcase Development Corporation Seating construction and method of assembly
WO2011060766A1 (de) 2009-11-23 2011-05-26 Tile Geismar Sitzmöbel mit rasch verformbarem gestell
WO2012107894A1 (en) * 2011-02-09 2012-08-16 Paltechnica Nitzanim A.C.C. Ltd. Compactly transportable seating for on-site assembly and corresponding methods
US8950817B2 (en) 2012-08-30 2015-02-10 Steelcase Inc. Article of furniture with modular construction
USD747894S1 (en) * 2013-03-25 2016-01-26 Cerantola S.P.A. Chair
US10021981B1 (en) * 2017-02-20 2018-07-17 Zhuhai Shichang Metals Ltd. Molded tray and chair ganging device
US11659934B2 (en) 2020-12-17 2023-05-30 Neighbor Modular furniture system with shared support and method therefor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3224812A1 (de) * 1982-07-02 1984-01-05 August Fröscher GmbH & Co KG, 7141 Steinheim Stuhl
IT243696Y1 (it) * 1997-12-04 2002-03-05 Ivars S P A Sistema di assemblaggio dei componenti di una sedia
FR2791875B1 (fr) * 1999-04-08 2001-06-15 Pascal Mourgue Siege pliant a dossier et/ou assise forme par un support moule sur de la toile en matiere plastique et fixe au siege et procede de fabrication du dossier et/ou de l'assise
DE202006018214U1 (de) * 2006-11-29 2007-02-15 Kusch + Co Sitzmöbelwerke GmbH & Co KG Stapelbarer Stuhl
CN106937797B (zh) * 2016-01-05 2019-07-16 亨叡股份有限公司 快速组合椅具

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US743210A (en) * 1903-04-06 1903-11-03 St Louis Car Co Car-seat.
US1657285A (en) * 1926-01-05 1928-01-24 Siskin Harry Theater chair
US2503933A (en) * 1946-04-03 1950-04-11 Breuer Marcel Plywood furniture frame
US2806515A (en) * 1953-10-27 1957-09-17 Hill Rom Co Inc Heavy duty chair
FR1142580A (fr) * 1956-02-08 1957-09-19 Table transformable et extensible
US2812800A (en) * 1956-05-03 1957-11-12 Herman Miller Furniture Compan Multiple seating assembly
US2815067A (en) * 1955-03-03 1957-12-03 Ambrose M Richardson Convertible furniture unit
US3031227A (en) * 1960-08-04 1962-04-24 Charleston Molded Fiber Glass Chair
US3041107A (en) * 1960-05-17 1962-06-26 Brunswick Corp Chair back
US3053493A (en) * 1959-05-07 1962-09-11 Stafford John Neville Linking and nesting units
FR1309385A (fr) * 1961-10-05 1962-11-16 C I M C A Cie Ind De Mobiliers Siège
US3111344A (en) * 1962-02-05 1963-11-19 American Seating Co Chair
US3159428A (en) * 1964-12-01 schier

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159428A (en) * 1964-12-01 schier
US743210A (en) * 1903-04-06 1903-11-03 St Louis Car Co Car-seat.
US1657285A (en) * 1926-01-05 1928-01-24 Siskin Harry Theater chair
US2503933A (en) * 1946-04-03 1950-04-11 Breuer Marcel Plywood furniture frame
US2806515A (en) * 1953-10-27 1957-09-17 Hill Rom Co Inc Heavy duty chair
US2815067A (en) * 1955-03-03 1957-12-03 Ambrose M Richardson Convertible furniture unit
FR1142580A (fr) * 1956-02-08 1957-09-19 Table transformable et extensible
US2812800A (en) * 1956-05-03 1957-11-12 Herman Miller Furniture Compan Multiple seating assembly
US3053493A (en) * 1959-05-07 1962-09-11 Stafford John Neville Linking and nesting units
US3041107A (en) * 1960-05-17 1962-06-26 Brunswick Corp Chair back
US3031227A (en) * 1960-08-04 1962-04-24 Charleston Molded Fiber Glass Chair
FR1309385A (fr) * 1961-10-05 1962-11-16 C I M C A Cie Ind De Mobiliers Siège
US3111344A (en) * 1962-02-05 1963-11-19 American Seating Co Chair

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497262A (en) * 1967-09-12 1970-02-24 S Anonima Castelli & C Sa Stackable,disassemblable chair
US3669497A (en) * 1969-02-17 1972-06-13 Henry Massonnet Chairs
US3610686A (en) * 1969-10-10 1971-10-05 Shelby Williams Ind Cast-aluminum stack chair
US3614158A (en) * 1969-12-05 1971-10-19 Tiffany Industries Chair ganging device
US3697130A (en) * 1971-04-20 1972-10-10 American Seating Co Connector assembly for chairs
US3734561A (en) * 1971-06-03 1973-05-22 American Seating Co Sled base frame chair
US3742869A (en) * 1971-07-29 1973-07-03 Fixtures Mfg Corp Table for vertical stacking and horizontal ganging
US3758155A (en) * 1972-03-16 1973-09-11 Interlake Inc Gang chair construction
US3850476A (en) * 1972-08-29 1974-11-26 Hille Int Ltd Tip-up seating
US4311337A (en) * 1978-06-09 1982-01-19 Oswald Brunn Combination furniture
US4305617A (en) * 1979-05-14 1981-12-15 Interroyal Corp. Chair construction
US4400031A (en) * 1981-03-12 1983-08-23 Virco Mfg. Corporation Interlocking chair
US4657302A (en) * 1985-03-11 1987-04-14 Fixtures Manufacturing Corporation Lounge construction
US5129703A (en) * 1989-12-29 1992-07-14 Wiesner-Hager Kg Chair structure for the assemblage of chair rows
USD378553S (en) * 1995-09-12 1997-03-25 Herman Miller, Inc. Chair
ES2160003A1 (es) * 1998-06-24 2001-10-16 Conalsa S A Componentes para bancos modulares y otro mobiliaro urbano, asi como el mobiliario con ellos construido.
US6206469B1 (en) * 1998-07-16 2001-03-27 Shelby Willliams Industries, Inc. Stackable side-by-side ganging chair
US6338528B1 (en) 2000-03-22 2002-01-15 Michigan Tube Swagers & Fabricators, Inc. Combination stiffener and ganger bracket for chair
US6406094B2 (en) 2000-03-22 2002-06-18 Michigan Tube Swagers & Fabricators, Inc. Combination stiffener and ganger bracket for chair
US6749259B2 (en) 2002-04-24 2004-06-15 Michigan Tube Swagers & Fabricators, Inc. Ganging device for stackbar of stackable chair
US20030201661A1 (en) * 2002-04-24 2003-10-30 Ware R. Duane Ganging device for stackbar of stackable chair
US20050012369A1 (en) * 2003-07-17 2005-01-20 Mendenhall Andrew B. Chair stacker apparatus
US20050012371A1 (en) * 2003-07-17 2005-01-20 Mendenhall Andrew B. Stackable chair with chair ganger apparatus
US6866338B2 (en) 2003-07-17 2005-03-15 Cosco Management, Inc. Chair stacker apparatus
US7017990B2 (en) 2003-07-17 2006-03-28 Cosco Management, Inc. Stackable chair with chair ganger apparatus
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
US7775600B2 (en) 2006-04-28 2010-08-17 Steelcase Development Corporation Seating construction and method of assembly
US7770968B2 (en) * 2007-05-09 2010-08-10 Kerstin Bartlmae Stackable chair
US20080277982A1 (en) * 2007-05-09 2008-11-13 Kerstin Bartlmae Stackable chair
US20090045666A1 (en) * 2007-08-14 2009-02-19 West & Knowles Design And Engineering, L.L.C. Furniture Member Attachment System
DE102010052496A1 (de) 2009-11-23 2013-01-17 Tile Geismar Sitzmöbel mit rasch verformbarem Gestell
DE102010051692A1 (de) 2009-11-23 2012-10-31 Tile Geismar Sitzmöbel mit rasch verformbarem Gestell
WO2011060766A1 (de) 2009-11-23 2011-05-26 Tile Geismar Sitzmöbel mit rasch verformbarem gestell
WO2012107894A1 (en) * 2011-02-09 2012-08-16 Paltechnica Nitzanim A.C.C. Ltd. Compactly transportable seating for on-site assembly and corresponding methods
US8950817B2 (en) 2012-08-30 2015-02-10 Steelcase Inc. Article of furniture with modular construction
US9936808B2 (en) 2012-08-30 2018-04-10 Steelcase Inc. Article of furniture with modular construction
USD747894S1 (en) * 2013-03-25 2016-01-26 Cerantola S.P.A. Chair
USD784712S1 (en) * 2013-03-25 2017-04-25 Cerantola S.P.A. Chair
US10021981B1 (en) * 2017-02-20 2018-07-17 Zhuhai Shichang Metals Ltd. Molded tray and chair ganging device
US11659934B2 (en) 2020-12-17 2023-05-30 Neighbor Modular furniture system with shared support and method therefor

Also Published As

Publication number Publication date
BE683466A (de) 1966-12-01
FR1505010A (fr) 1967-12-08
CA815879A (en) 1969-06-24
FR1432222A (fr) 1966-03-18
BR6569273D0 (pt) 1973-07-24
CH438616A (de) 1967-06-30
GB1138591A (en) 1969-01-01
GB1079556A (en) 1967-08-16
DE1529420A1 (de) 1972-05-18
CH452135A (de) 1968-05-31

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