EP0471654B1 - A device which is intended to be fitted to an armchair or like article - Google Patents

A device which is intended to be fitted to an armchair or like article Download PDF

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Publication number
EP0471654B1
EP0471654B1 EP19910850190 EP91850190A EP0471654B1 EP 0471654 B1 EP0471654 B1 EP 0471654B1 EP 19910850190 EP19910850190 EP 19910850190 EP 91850190 A EP91850190 A EP 91850190A EP 0471654 B1 EP0471654 B1 EP 0471654B1
Authority
EP
European Patent Office
Prior art keywords
armchair
arms
fitted
intended
article
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19910850190
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0471654A1 (en
Inventor
Claes Rönblom
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0471654A1 publication Critical patent/EP0471654A1/en
Application granted granted Critical
Publication of EP0471654B1 publication Critical patent/EP0471654B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/18—Chairs or stools with rotatable seat

Definitions

  • the present invention relates to a device which is intended to be fitted to an armchair or like article for the purpose of converting it to a swivel armchair, as defined in the preamble of claim 1.
  • the swivel armchairs which are presently available on the market are encumbered with certain drawbacks.
  • the general appearance of such armchairs does not match the appearance of conventional suites of furniture and the chairs also require a large amount of space for transportation and storage purposes.
  • the swivel mechanism of the swivel armchair is an integral part of the chair and must be scrapped together with remaining chair parts when these become worn.
  • DE-A-820 475 discloses a device which is intended to be fitted to an armchair for the purpose of converting the armchair to a swivel armchair, wherein the device includes chair support means, a base which is intended to rest on a floor surface and which includes or has fitted thereto a shaft on which the said means are journalled for horizontal rotary movement, roller means mounted on said means and in abutment with said base, and carrier means mounted on said means and supporting the legs of the armchair.
  • the device of DE-A-820 475 can not be used for chairs having four legs, nor for chairs having different sizes. It is expensive to manufacture due to its complicated design.
  • FR-A-1 590 704 discloses a device which is intended to be fitted to an armchair, having four legs, for the purpose of converting the armchair to a swivel armchair.
  • the device includes chair support means including four arms individually swingable and horizontally adjustable about four axes on a plate resting on the floor.
  • Each arm has mounted thereon a carrier means for each chair leg and a ball rolling on the floor.
  • the arms of the device of FR-A-1 590 704 can be moved uncontrollable and independent of each other not only radially but also circumferentially which makes the device instable.
  • the rotary motion of the balls may be difficult to perform on soft floor surfaces and the balls may cause damages on sensitive floors.
  • the object of the present invention is to eliminate the aforesaid drawbacks and to provide a device which can be fitted to a conventional or standard armchair such as to convert the armchair to a swivel armchair without appreciably changing its original appearance.
  • the device requires only a small transportation and storage space and can be switched to a new armchair when the old armchair is worn out.
  • the device can be used for four-leg chairs having different sizes and consists of few and simple details easy to assemble and manufacture.
  • the device is stable and can be used on any floor without damaging it.
  • a steel plate 2 is adhesively bonded concentrically to a larger circular plate 1 made of hardened glass or plastic.
  • a steel shaft 3 is welded to the centre of the steel plate so as to extend vertically therefrom.
  • Mounted for rotation on the shaft 3 are four arms, which comprise two arm-pairs, each in the form of mutually crossing tubular members 4 and 5 and each of which can be rotated horizontally about its repective centre point, at which through-passing holes have been drilled for accommodating the shaft 3.
  • the tubular members are held on the shaft by means of a cotter pin 7.
  • the centre part of the tubular member 5 has been removed and replaced with two flat plates 6 welded to the top and bottom sides of the tubular member, so that the two tubular members will lie in one and the same plane.
  • the length of the piece of tubular member removed is slightly longer than the outer diameters of the tubular members 4 and 5, therewith enabling the angle between the tubular members to be varied from about 60° to about 120°, which is necessary in order for the inventive device to be fitted to different armchairs.
  • rollers such as ball bearings 8 which are mounted such as to roll against the plate 1 when the cruciform tubular members are rotated around the shaft.
  • rollers such as ball bearings 8
  • the telescopic tubes have welded to the outer ends thereof carrier means in the form of angle irons 11 provided with holes 12 to enable the angle irons to be secured to the undersurface of the legs of the armchair, which are therewith fixated at a level of some centimeters above the level of the floor on which the plate 1 rests. Subsequent to having secured the angle irons, stop screws 10 are tightened so as to lock the telescopic tubes and to render the legs of the armchair stable.
  • Figure 3 illustrates an alternative embodiment, in which the plate 1 is replaced by an annular 13 having spokes 14 which accommodate the shaft 3 at their radially inner ends.

Landscapes

  • Chain Conveyers (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Supports For Pipes And Cables (AREA)
EP19910850190 1990-08-14 1991-07-30 A device which is intended to be fitted to an armchair or like article Expired - Lifetime EP0471654B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9002633A SE469366B (sv) 1990-08-14 1990-08-14 Snurranordning foer montering paa en faatoelj eller liknande
SE9002633 1990-08-14

Publications (2)

Publication Number Publication Date
EP0471654A1 EP0471654A1 (en) 1992-02-19
EP0471654B1 true EP0471654B1 (en) 1994-12-14

Family

ID=20380140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910850190 Expired - Lifetime EP0471654B1 (en) 1990-08-14 1991-07-30 A device which is intended to be fitted to an armchair or like article

Country Status (4)

Country Link
EP (1) EP0471654B1 ( )
DE (1) DE69105869T2 ( )
ES (1) ES2067913T3 ( )
SE (1) SE469366B ( )

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013016343B4 (de) 2013-09-30 2018-01-18 Peter Peters Rollvorrichtung für einen stuhl
DE202013008722U1 (de) 2013-09-30 2013-11-26 Peter Peters Rollvorrichtung für einen Stuhl

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1747543A (en) * 1927-08-08 1930-02-18 Gregory Eugene Rotary chair carrier
DE820475C (de) * 1950-04-09 1951-11-12 Erich Isenberg Drehstuhl o. dgl., insbesondere Stahlrohrsessel mit schwebendem Sitz
FR1590704A ( ) * 1968-09-26 1970-04-20
US3589772A (en) * 1969-01-23 1971-06-29 Steelcase Inc Chair
DE8806423U1 (de) * 1988-05-17 1988-12-22 Eggermann, Rainer, 5600 Wuppertal Drehgestell für Strandkörbe und Strandzelte

Also Published As

Publication number Publication date
SE469366B (sv) 1993-06-28
EP0471654A1 (en) 1992-02-19
DE69105869T2 (de) 1995-08-03
DE69105869D1 (de) 1995-01-26
ES2067913T3 (es) 1995-04-01
SE9002633D0 (sv) 1990-08-14
SE9002633L (sv) 1992-02-15

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