US3565378A - Furniture foot or support structure - Google Patents

Furniture foot or support structure Download PDF

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Publication number
US3565378A
US3565378A US783610A US3565378DA US3565378A US 3565378 A US3565378 A US 3565378A US 783610 A US783610 A US 783610A US 3565378D A US3565378D A US 3565378DA US 3565378 A US3565378 A US 3565378A
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United States
Prior art keywords
elements
sectorlike
furniture
hub
support structure
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Expired - Lifetime
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US783610A
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English (en)
Inventor
Sigvard Bror Anders Svenson
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Moderna Butiksinredningar AB
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Individual
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Assigned to MODERNA BUTIKSINREDNINGAR AKTIEBOLAG, A CORP. OF SWEDEN reassignment MODERNA BUTIKSINREDNINGAR AKTIEBOLAG, A CORP. OF SWEDEN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FORM-STAR AKTIEBOLAG
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
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B13/00—Details of tables or desks
    • A47B13/02—Underframes
    • A47B13/023—Underframes with a central column

Definitions

  • the hub is positioned at an elevation slightly above the plane of the peripheral portions of the sectorlike elements for permitting stacking of the foot structures.
  • the hub preferably has a conical opening therethrough formed with a self-locking taper for permitting a bushing to be securely seated therein, which bushing rotatably accommodates a support pin which extends downwardly from an article of furniture.
  • the present invention is concerned with furniture components, more specifically with a detachable and stackable foot or support structure for such articles of furniture as primarily armchairs, and secondarily tables, standard lamps and the like.
  • the invention provides a furniture support structure, e.g. a foot structure, made of wire-rod-material, which solves the aforementioned problems.
  • the wire-rod support structure of the invention is in the form of a welded unit which, with excellent results, can be surface treated before being mounted to the article of furniture is question, and then joined to said article of furniture as aforementioned primarily as armchair.
  • Another advantage afforded by the structure according to the invention is that the articles of furniture provided with such structures can be packed and transported in a dismantled condition to their place of destination, where they can be assembled without difficulty by the recipient. This latter feature offers a considerable saving in transport and storage costs.
  • the structure consists of a ring of sectorlike elements made of a wire-rod material, preferably steel wire-rod material, the ring comprising a peripheral portion and two radial, spokelike portions which meet in a hub member which includes two plates or rings, consisting of one upper and one lower plate or ring, the diameter of which is preferably less than that of the upper plate or ring, the ends of said segmental elements being inserted between the plates and welded thereto in such a way that the hub is somewhat raised above the plane through the peripheral portions of the segmental elements by which the foot support structure supports against the foundation.
  • the peripheral portions 12c of the circle sector-shaped elements together form a circular ring.
  • the radial members or arms (the spokes) 12a and 12b lie adjacent to one another and are joined underneath by short weld beads, wherewith it should be seen that the beads are. of such length that the structure does not warp or become deformed during the welding process.
  • the free ends of the sectorlike elements that is the inner ends of the radial arms 12a and 12b, extend to the proximity of the foot structure, where they are united by two rings or plates, an upper 14 and a lower l6, the latter 16 having a larger diameter than the former 14, in between which the ends of the sectorlike elements are inserted.
  • This arrangement provides aconcentrated, central connection, since the ends of said elements are welded to both plates, first to the upper plate at 18 (see FIG. 3) and then to the bottom plate at 20. Because the diameter of the bottom plate is smaller than that of the upper plate 14 the weldsare completely hidden by said upper plate, even when viewed obliquely from above.
  • the two plates 14 and 16 thus together form a type of hub indicated generally by 15, to which the sectorlike elements are joined.
  • FIG. 1 is a plan view of a typical foot support structure according to the invention
  • FIG. 2 is a cross section is larger scale through the line II-II in FIG. 1,
  • FIG. 3 is a detail view of a fragmented portion of the hub of As will be seen from FIG. 2 the radial arms 12a and 12b are bent upwards to define a small angle a '(in the order of 8- 10) with the plane through the peripheral arms of the sectorlike elements, so that the hub 15 is situated at a distance h above the plane of the floor.
  • the upper plate 14 is also preferably conical in shape, to conform to the inclination of the radial arms 12a, b,(FIG.2').'
  • the two hub plates 14 and 16 are machined or worked with tapered cutting means (standard taper) to provide a conical hub opening 22.
  • tapered cutting means standard taper
  • the foot structure can be considered to constitute a complete, lightweight unit, joined by welds which are invisible externally.
  • the entire foot structure can now be galvanized, whereupon as a result of the symmetry of the structure and the absence of shielded portions and densely positioned structure members a smooth and uniform surface finish can be obtained.
  • the foot structure 10 can now be assembled to an armchair or some other appropriate article of furniture by means of the conical hub opening 22.
  • a sleeve 24 presenting a conical end 24a force fitted in opening 22 is used for this purpose.
  • the sleeve is fitted with an internal bushing 26, preferably made of nylon or a similar antifriction material, in which a pivot pin which cooperates with a standard depending from the seat of the chair can be pivotally mounted in a suitable manner.
  • FIG. 2 shows the sleeve-bushing combination 24- --26 in a position somewhat remote from the hub opening 22, it being intended that the combination 24-16 is forced downwards from this position in the direction of the arrow, to be fixed in and form a unit with the hub 15.
  • the foot structure of the invention presents two worthwhile attributes.
  • the first of these is the ease with which an armchair provided with, for instance, the foot structure of FIG. 1 can be moved in the absence of the conventional castors.
  • the aforementioned pivot pin of the standard or post of the armchair is pivotally mounted in the bushing 26, which means that the foot structure can be made to function as a wheel, and the chair rolled across the floor on the peripheral portions 120 of the sectorlike elements.
  • the other attribute of consequence is the natural springiness of the foot structure. Because the hub 15, against which the weight of the chair and the person seated therein is applied, is located at a distance h above the floor, the entire foot structure will act as a rigid cup spring. The spring in the chair is not the great as to create a rocking or tossing" effect, but results in a gentle settling of the chair, to the comfort of the person seated therein.
  • FIGS. 4-7 show a number of difierent embodiments 30, 40, 50 and 60 respectively, of the furniture foot structure according to the invention.
  • One feature common to all these embodiments is that they are composed of essentially sectorlike wire-rod elements welded to a central hub 35, 45, 55 or 65 consisting of an upper and lower plate, as described in the aforegoing.
  • the foot structures illustrated in FIGS. 4 and 5 contain four and five elements 32 and 42 respectively, but are in other respects identical to the structure described above.
  • the foot structure 50 illustrated in H6. 6 also contains six sectorlike elements 52, although in this instance the peripheral portions 520 are straight.
  • FIG. 7 shows a foot structure 60 which includes four sector like elements 62 spaced apart at an angle a.
  • This foot structure is, of course, somewhat weaker than the aforedescribed, with respect to the springiness of the chair, for instance.
  • a detachable and stackable furniture support structure particularly for an arm chair, comprising a ring of sectorlike elements made of a wire-rod material, each of said sectorlike elements having a peripheral portion and two spokelike portions which extend radially inwardly and upwardly relative to the respective peripheral portion, hub means centrally disposed relative to said ring of sectorlike elements and fixedly connected to the free ends of said spokelike portions for fixedly interconnecting said plurality of sectorlike elements, said hub means being disposed at an elevation above the plane defined by the peripheral portions of said sectorlike elements and including upper and lower plates with the lower plate having a diameter smaller than the upper plate.
  • said hub means having a central conical opening extending therethrough with said conical opening having a self-locking tapered configuration which converges downwardly toward the plane of the peripheral portions, and an annular bushing means disposed within said opening and lockingly secured to said hub means due to the tapered configuration of said opening, said bushing means having a central recess formed therein adapted to accommodate a downwardly extending pin mounted on an article of furniture.
  • a support structure according to claim 1 in combination with an article of furniture having a downwardly extending support means with said support means having a downwardly extending pin, said pinbeing rotatably received within the central recess formed in said bushing means for enabling relative rotation between said article of furniture and said support structure, whereby said support structure permits the article of furniture to be moved by being tilted and rolled on said ring of sectorlike elements.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)
US783610A 1967-12-22 1968-12-13 Furniture foot or support structure Expired - Lifetime US3565378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE17740/67A SE326006B (enExample) 1967-12-22 1967-12-22

Publications (1)

Publication Number Publication Date
US3565378A true US3565378A (en) 1971-02-23

Family

ID=20303939

Family Applications (1)

Application Number Title Priority Date Filing Date
US783610A Expired - Lifetime US3565378A (en) 1967-12-22 1968-12-13 Furniture foot or support structure

Country Status (5)

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US (1) US3565378A (enExample)
FI (1) FI45619C (enExample)
FR (1) FR1596930A (enExample)
NL (1) NL6818136A (enExample)
SE (1) SE326006B (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4925140A (en) * 1989-03-20 1990-05-15 Itc Incorporated Detachable leg assembly
US5639056A (en) * 1994-12-21 1997-06-17 Athena Industries, Inc. Display pedestal
WO2005018384A1 (de) * 2003-08-19 2005-03-03 Gloeckl Josef Stuhl oder hocker mit beweglichen, elastischen beinen, um ein dynamisches sitzen zu ermöglichen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508694A (en) * 1946-10-22 1950-05-23 Russel L Steed Music stand
US3186669A (en) * 1963-06-19 1965-06-01 All Steel Equipment Inc Chair base construction
US3208795A (en) * 1963-09-24 1965-09-28 Knoll Associates Article of manufacture including a resinous coating
US3438606A (en) * 1966-12-01 1969-04-15 Saul Rubin Supporting structure for a chair or the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508694A (en) * 1946-10-22 1950-05-23 Russel L Steed Music stand
US3186669A (en) * 1963-06-19 1965-06-01 All Steel Equipment Inc Chair base construction
US3208795A (en) * 1963-09-24 1965-09-28 Knoll Associates Article of manufacture including a resinous coating
US3438606A (en) * 1966-12-01 1969-04-15 Saul Rubin Supporting structure for a chair or the like

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4925140A (en) * 1989-03-20 1990-05-15 Itc Incorporated Detachable leg assembly
US5639056A (en) * 1994-12-21 1997-06-17 Athena Industries, Inc. Display pedestal
WO2005018384A1 (de) * 2003-08-19 2005-03-03 Gloeckl Josef Stuhl oder hocker mit beweglichen, elastischen beinen, um ein dynamisches sitzen zu ermöglichen

Also Published As

Publication number Publication date
FI45619B (enExample) 1972-05-02
FR1596930A (enExample) 1970-06-22
FI45619C (fi) 1972-08-10
NL6818136A (enExample) 1969-06-24
SE326006B (enExample) 1970-07-13

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MODERNA BUTIKSINREDNINGAR AKTIEBOLAG, TORSTORP, S-

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:FORM-STAR AKTIEBOLAG;REEL/FRAME:003933/0711

Effective date: 19811110