US3596983A - Convertible armchair - Google Patents

Convertible armchair Download PDF

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Publication number
US3596983A
US3596983A US809172A US3596983DA US3596983A US 3596983 A US3596983 A US 3596983A US 809172 A US809172 A US 809172A US 3596983D A US3596983D A US 3596983DA US 3596983 A US3596983 A US 3596983A
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United States
Prior art keywords
armchair
linkage
footrest
seat
length
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
US809172A
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English (en)
Inventor
Rene Ramillon
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Individual
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Individual
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Publication date
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Publication of US3596983A publication Critical patent/US3596983A/en
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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
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/0342—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movable backrest-seat unit or back-rest
    • 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
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/026—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
    • 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
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/028—Reclining or easy chairs having independently-adjustable supporting parts for changing a straight chair into an easy chair, e.g. by inverting or tilting seat and back-rest in the base frame or by overturning the whole chair
    • A47C1/029—Reclining or easy chairs having independently-adjustable supporting parts for changing a straight chair into an easy chair, e.g. by inverting or tilting seat and back-rest in the base frame or by overturning the whole chair by changing the length or the inclination of the legs
    • 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
    • A47C4/04—Folding chairs with inflexible seats
    • A47C4/18—Folding chairs with inflexible seats having a frame made of metal
    • A47C4/20—Folding chairs with inflexible seats having a frame made of metal with legs pivotably connected to seat or underframe
    • A47C4/22—Folding chairs with inflexible seats having a frame made of metal with legs pivotably connected to seat or underframe of adjustable type

Definitions

  • a convertible armchair has a framed seat to which the front and back legs, back and footrest are hinged, as well as rods which form a deformable parallelogram with them.
  • An adjustable length telescopic rod is connected to the parallelogram and seat frame to form a second parallelogram with a common side with the first, through hinged gussets and a yoke.
  • the telescopic rod has a cylindrical stop fixed on its male part so as to be guided and received in slots in the female part to set various positions of the back relative to the footrest.
  • a handle is hinged on the female part and has a roller on its lower face arranged to act through a slot in the female part and push down the male part against a spring to release the stop from the slot and move to another slot for another position of the armchair. Additional front legs and a friction system to adjust the effort required may also be provided.
  • the present. invention relates to convertible armchairs which can occupy, in addition to the armchair position and through inclination of the back and of the footrest, various positions of relaxation.
  • the inclination of the footrest is generally necessarily connected, by rods with that of the back, so that making the position of one or the other of these elements vary, the user alters his position of relaxation, without however modifying the position of the back with respect to that of the footrest; the possibilities of such armchairs are therefore limited.
  • this armchair is of the type constituted by a seat to the frame ofwhich are hinged respectively the front and back legs, the back, the footrest and rods which, in combination with the seat, the back and the armrests, define a deformable parallelogram which possesses withit a common side, and ofwhich one of the sides is constituted by a telescopic rod, adjustable at will by the'user, and'of which the increase or the decrease in length acts directly on the inclination of the footrest without in anyway influencing that ofthe back, this telescopic rod being-providedwith immobilizing means for variouspositions of the footrestwith respect to-the back.
  • the: user can, at any moment, change hisposition of repose bygiving to the armchair very varied positions. He can, from a given position of the back and I of thefootrest either modify their position with respect to the ground by leaningmore or less heavily on one or other of these elements, or modify their relative angular position due to the arrangement of theabove-describedtelescopic rods: the force. necessary. for the modification of the position of the armchair with respect totheground'may beadjusted by two handles located on oppositesides of the:armchair.
  • F lG..6 illustrates the passage fromione of these positions to another
  • FIGS. 7, 8, 9 and l' show various positions of the telescopic rod each corresponding to a differentposition of the back with respect to its footrest;
  • FIG. 11 is a view on an enlarged scale of the telescopic rod and ofthe hingederivents to which it is attached.
  • the embodiment of the convertible armchair shown in the drawing is constituted principally, as illustrated by FIGS. 1,2, 3, 4 and5, by a frame 2 on which are hinged, at its back part,
  • the frame 2 receives, on the one hand, the ends of the metallic frame constituting the front legs 6 and hinged on'itby 'means of gussets7, and on the other hand, a coupling member or yoke 8 having a transverse section substantially in a U, hinged at 9'to the frame 2 and at 10 to the maleelement 12 of a telescopic rodxl3. At 10 is also hinged the. metallic.
  • the female part or sleeve ll of the telescopic link 13 is hinged at 15 on a gusset 16, itself hinged at 17 on the frame 2 and rigidly attached to a rod l8 hinged throughits other end at 19 to the front part of the armrest 20 of which the back end is hinged at 22 to the back 5.
  • the hinged elements of this armchair constitute, on each side, two deformable parallelograms connected through a common side, in this instance the hinged gusset 16, one of these parallelograms being constituted by the lower part of the back 5, the armrest 20, the rod 18 rigidly attached to the gusset l6 and the frame 2, the second parallelogram being composed by the gusset 16, by the telescopic rod 13, and by the yoke 8 of the front part of the frame 2,
  • the user can, at any moment, the footrest being for example stationary, incline more or less the back 5 with respect to the footrest.
  • a handle 26 hinged at 27 on the sleeve 11 of the telescopic link 13 and provided, under its lower face with a roller 28'intended to penetrate a slot 29 formed on the upper part of the sleeve 11 so as to push back, as shown in FIG. 6, the rod 12 and, consequently, to extract a cylindrical stop 30, which is rigidly fixed to it, from the slot 32, 33, or 34in which it is positioned.
  • the stop 30 is then brought, by the action of the user on the back 5, into another slot of the sleeve 11, thus modifying the length of the telescopic rod 13.
  • the back 5 has there fore been easily inclined more or less with respect to the footrest 14, since the latter has remained stationary.
  • This new position ofthe armchair does not exclude however the possibility of obtaining, starting from this position and by acting on the back 5 or on the footrest 14, as has been mentioned previously. A plurality of positions of these two elements with respect to the ground.
  • the sleeve 11 comprises, on its lower part, a spring 36 maintaining against the male rod 12 a constant pressure, tending to press it against the upper part of the sleeve 11, eliminating any risk of inadvertent disengagement of the stop 30.
  • the invention provides moreover, hinged at 37 on the frame 2, a metallic frame constituting other front legs 38, smaller than those 6 and thus enabling to further advantage an increase ofthe number of positions ofthis armchair with respect to the ground, by using as desired one or other of these front legs 6 and 38.
  • the effort to be applied on the back 5 or on the footrest 14 to obtain a change :in the position of the armchair may be proportioned more or less, through a friction system, so as to adapt this effort to the wishes of the user.
  • v l..A convertible armchair having a seat and a back and armrests and front and rear legs and a footrest, the armchair hav- I side of the armchair including the seat and back and one armrest, the second quadrilateral linkage on each side of the armchair having one side that swings with the footrest and another side that is common to said first quadrilateral linkage and a third side which is adjustable as to length, and means for adjusting said third side of said second quadrilateral linkage as to length thereby to alter the swinging relationship between the back and footrest.
  • one side of said first linkage comprising an upright member supporting the forward end of the associated armrest, said upright member constituting said common side and being pivotally interconnected with said third side of said second linkage intermediate the length of said upright member.
  • said adjusting means comprising means for selectively releasably retaining said third side in any of a plurality of predetermined lengthwise ad- 5 justed positions.
  • said third side of said second linkage comprising a pair of relatively telescoping members one of which carries a pin and the other of which carries a plurality of slots in which said pin is selectively receivable to adjust said third side to different lengths.
  • said adjusting means comprising a handle depressible to release said pin from a said slot to permit adjustment of the length of said third side and entry of said pin into a different said slot corresponding to the adjusted length of said third side.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Passenger Equipment (AREA)
US809172A 1968-04-17 1969-03-21 Convertible armchair Expired - Lifetime US3596983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR69049910 1968-04-17

Publications (1)

Publication Number Publication Date
US3596983A true US3596983A (en) 1971-08-03

Family

ID=9695286

Family Applications (1)

Application Number Title Priority Date Filing Date
US809172A Expired - Lifetime US3596983A (en) 1968-04-17 1969-03-21 Convertible armchair

Country Status (4)

Country Link
US (1) US3596983A (de)
BE (1) BE728847A (de)
DE (1) DE1918865A1 (de)
FR (1) FR1569981A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224091A1 (de) * 1992-07-22 1994-01-27 Helmut Zanker Liege mit verstellbarer Rückenlehne
US20040066076A1 (en) * 2001-08-08 2004-04-08 Jurgen Bauer Seat
CN103653914A (zh) * 2013-11-28 2014-03-26 湖州立方塑木新材料有限公司 一种改进的办公椅
DE102014112243A1 (de) * 2014-08-26 2016-03-03 himolla Polstermöbel GmbH Sitzmöbel
US11317722B2 (en) * 2019-03-29 2022-05-03 Gci Outdoor Llc Collapsible and portable chair with independently movable leg rest

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3727784A1 (de) * 1987-08-20 1989-03-02 Kloeber Gmbh & Co Arbeitsstuhl mit verschwenkbarer sitzschale
US5735571A (en) * 1996-03-04 1998-04-07 Colondona; Alexander Vincent Orthopedic beach and relaxing chair
DE102016122681A1 (de) * 2016-11-24 2018-05-24 Kettler Gmbh Sitzmöbel, insbesondere Gartenstuhl

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2571463A (en) * 1945-05-22 1951-10-16 Lorenz Anton Foldable reclining article of furniture
FR1387303A (fr) * 1963-12-20 1965-01-29 Siège transformable

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2571463A (en) * 1945-05-22 1951-10-16 Lorenz Anton Foldable reclining article of furniture
FR1387303A (fr) * 1963-12-20 1965-01-29 Siège transformable

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224091A1 (de) * 1992-07-22 1994-01-27 Helmut Zanker Liege mit verstellbarer Rückenlehne
US20040066076A1 (en) * 2001-08-08 2004-04-08 Jurgen Bauer Seat
US6808234B2 (en) * 2001-08-08 2004-10-26 Recaro Aircraft Seating Gmbh & Co. Seat
CN103653914A (zh) * 2013-11-28 2014-03-26 湖州立方塑木新材料有限公司 一种改进的办公椅
DE102014112243A1 (de) * 2014-08-26 2016-03-03 himolla Polstermöbel GmbH Sitzmöbel
US11317722B2 (en) * 2019-03-29 2022-05-03 Gci Outdoor Llc Collapsible and portable chair with independently movable leg rest

Also Published As

Publication number Publication date
DE1918865A1 (de) 1970-08-06
BE728847A (de) 1969-08-01
FR1569981A (de) 1969-06-06

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