US2954072A - Hinged rods mechanism for reclinable armchairs - Google Patents

Hinged rods mechanism for reclinable armchairs Download PDF

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Publication number
US2954072A
US2954072A US671914A US67191457A US2954072A US 2954072 A US2954072 A US 2954072A US 671914 A US671914 A US 671914A US 67191457 A US67191457 A US 67191457A US 2954072 A US2954072 A US 2954072A
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United States
Prior art keywords
armchair
seat
hinged
pivot point
foot rest
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Expired - Lifetime
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US671914A
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English (en)
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Fossati Mario
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Individual
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Individual
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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
    • A47C1/02—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
    • A47C1/035—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest

Definitions

  • This invention relates to a mechanism for the relative displacement of the seat and of the back of an armchair designed to permit, in one position of the armchair, the substantial alignment of its foot rest with the seat and, in another position, its retraction below and adjacent to the seat.
  • This invention is concerned with mechanisms for upholstered reclinable armchairs.
  • a further object of the invention is to provide an in which the foot rest may be automatically retracted toa position adjacent to the lower face of the seat,:s0 as to complete the aesthetical contours of this latter member of the chair.
  • armchair including a mechanismof the type referred to, ii
  • a further object of the invention is to provide an armchair including a mechanism according to the invention which, when assuming a reclining position as a consequence of the pressure of the body of the user resting in the same, appears to be automatically balanced in that position, without having recourse to special locking means operable, for instance, only upon a rising of the user from the chair.
  • Another object is to provide an armchair including a mechanism as described which is able to assume a series of extremely comfortable reclining positions, these posi-- tions being unaffected by, for instance, the weight of the users feet on the foot rest.
  • the adjusting mechanism of the armchair comprises a stationary supporting structure, a seat independently hinged to such structure, a back rest independently hinged ro ances tune, a pivoted foot rest, and link means including a order lever and a longitudinally extendingmember oper able to rotate the foot rest about its pivot, through an angle of substantially ,simult2meously with a rotation of the back rest from a forward sitting position to a rearward reclining position of the armchair.
  • Fig. fl is a diagrammatic perspective view of a reclining position of an armchair with one arm particular- 1y shown to incorporate the mechanism according totlie invention; 7 7
  • Fig. 2 is a side elevation of the same armchair, includ ing the same mechanism in a second reclining position;
  • Fig. 3 is a diagrammatic side elevation of a. modified embodiment of the mechanism mounted on an armchair cf the type referred to in Fig. 1 and 2.
  • an armchair for incorporating the mechanism. has a stationary supporting gagture 1, formed of a framework 2, to which the plates li-af'c fixed. To these plates 3 the sides or arms 4 of the armchair are secured in a conventional manner. On each side of the illustrated armchair a mechanism-according to the invention is provided, which will be new more particularly described. 1 v
  • the back rest 5 or the armchair is hinged at, 6 tothe plate 3, Whereas the seat 7 is hinged to the same plate ata different point 8.
  • the foot rest 9 is hinged by ⁇ ;
  • fulcrum 10 to the seat 7 and, in the positioushown in Fig. 1, is housed in a recess 11, specially provided at the lower face of said seat, in such a manner that, when the foot rest is adjacent to said lower face of the seat, an aesthetical contour is thereby im arted to A longitudinally extending link member in the 651! of .
  • a hinged rod 13' is pivoted at 12 to the back S t the armchair, said rod being provided with an elongated slot 14a. More particularly the rod 13' is airangedat the outer part of the vartii or side 4, whereas the 5 is arranged at the inner part of such i.-e.
  • the rod 13 has a plurality of recesses 14, moor which are shown in the drawin engageable bytl'i'e hooked end 16 of a pawl 17, pivoted at18 to the stationary supporting gagture of the armchair.
  • the other end of the rod 13 is hinged at 20 to a omermaster lever 21-; intermediate fulcrum i 22 ispivoted the aid or axed state sure the swing around the hinge 10 when the rod 24 is displaced.
  • an auxiliary hinged rod 26 is articulated at 26a, this auxiliary rod being pivoted to a pin 28 projecting from the seat 7 across an opening 27 in the side 4.
  • a spring 29 is secured with one end to the plate 30, associated with main fulcrum 22, and with its other end to the rod 13, in the vicinity of the pivot 12.
  • the master lever 21 is also rotated in the same direction and causes, by means of the rods 24, 26 respectively, the foot rest to be oscillated in the direction of the arrow B and of the seat 7 to swing in the direction of the arrow A.
  • the spring 29 is accordingly stretched, so that the leaning pressure of the body on the back and the weight of the body on the seat 7 and on the foot rest 9 are mutually balancing the various parts of the armchair, with the aid of the action of the spring-29.
  • the pawl 17 is released and locks, by engagement with a recess 14a, the armchair in the wanted position.
  • the pawl 17 is not at all necessary but is to be provided in those few cases in which a further locking of the armchair in any reclining position is desired. Such locking may be carried out in any conventional manner.
  • Fig. 3 in which the parts 1' to 23' are identical with the elements 1 to 23 of Figs. 1 and 2 (and in which some of the previously described members have been omitted for clarity sake), the alternate feature consists of the fact that the rod 24, instead of being directly connected to the foot rest 9, is shown to :be hinged to auxiliary first-order lever 24a pivoted at 24b; between the end hinge 24c and the pivot 24b a rod 24d is connected to the auxiliary lever 24a whose movement is thus transmitted to the seat 7.
  • rods 13 and 24 may be each or both replaced by a rod system, e.g. with the aid of levers which are pivoted to the fixed structure. It is also clear that the armchair may be of any conventional construction.
  • a reclining armchair comprising a stationary supporting structure, a seat hinged to said structure at a first pivot point, said seat being adapted to rotate between a lower extreme sitting position and an upper extreme reclining position about said first pivot point, a foot rest hinged to said seat at a second pivot point, a back rest hinged to said structure, an upwardly extending first link member constituting a first-order lever fulcrumed on said structure at a third pivot point, said third pivot point being above the line connecting said first and second pivot points in all the functioning positions of said seat, a longitudinally extending second link member rotatably connected to said back rest at one extremity of said second member and to the upper end of said first member at the other extremity of said second member, and link means operatively connectingsaid foot rest with the lower end of said first member ata fourth pivot point for the simultaneous rotation of said foot rest about said second pivot point through an angle substantially equal to with a rotation of said back rest from a forward sitting position to a rearward reclining position thereof.
  • a reclining armchair comprising a stationary supporting structure, a seat hinged to said structure at a first pivot point, said seat being adapted to rotate between a lower extreme sitting position and an upper extreme reclining position about said first pivot point, a foot rest hinged to said seat at a second pivot point, a back rest hinged to said structure, an upwardly extending first link member constituting a first-order lever fulcrumed on said structure at a third pivot point, said third pivot point being above the line connecting said first and second pivot points in all the functioning positions of said seat, a longitudinally extending second link member rotatably connected to said back rest at one extremity of said second member and to the upper end of said first member at the other extremity of said second member, and link means operatively connecting said foot rest with the lower end of said first member at a fourth pivot point for the simultaneous rotation of said foot rest about said second pivot point through an angle substantially equal to 180 with a rotation of said back rest from a forward extreme sitting position to a rearward extreme reclining position thereof, said first and
  • a reclining armchair according to claim 2 further comprising hand-operable locking means engageable with one of said members for securing the movable parts of said armchair in a stationary position.
  • a reclining armchair comprising a stationary supporting structure, a seat hinged to said structure at a first pivot point, said seat being adapted to rotate between a lower extreme sitting position and an upper extreme reclining position about said first pivot point, a back rest hinged to said structure, an upwardly extending first link member constituting a first-order lever fulcrumed on said structure at a third pivot point, said third pivot point being above the line connecting said first and second pivot points in all the functioning positions of said seat, a longitudinally extending second link member rotatably connected to said back rest at one extremity of said second member and to the upper end of said first member at the other extremity of said second member, first link means operatively connecting said foot rest with the lower end of said first member at a fourth pivot point for the simultaneous rotation of said foot rest about said second pivot point through an angle substantially equal to 180 with a rotation of said back rest from a forward sitting position to a rearward reclining position thereof, and second link means operatively connecting said seat with said first member.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
US671914A 1956-07-17 1957-07-15 Hinged rods mechanism for reclinable armchairs Expired - Lifetime US2954072A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1178947X 1956-07-17

Publications (1)

Publication Number Publication Date
US2954072A true US2954072A (en) 1960-09-27

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ID=11432671

Family Applications (1)

Application Number Title Priority Date Filing Date
US671914A Expired - Lifetime US2954072A (en) 1956-07-17 1957-07-15 Hinged rods mechanism for reclinable armchairs

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US (1) US2954072A (enrdf_load_stackoverflow)
BE (1) BE559312A (enrdf_load_stackoverflow)
FR (1) FR1178947A (enrdf_load_stackoverflow)
GB (1) GB866533A (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5246266A (en) * 1990-09-18 1993-09-21 Chairworks Taiwan Limited Chair
US20120193946A1 (en) * 2009-08-18 2012-08-02 Dale Robertson Adjustable furniture
FR2995511A1 (fr) * 2012-09-14 2014-03-21 Didier Marc Monard Mecanisme d'equilibrage d'un siege pendulaire
US9155388B2 (en) 2010-09-09 2015-10-13 Integrated Furniture Technologies Limited Lift-recliner chair and method thereof
US9198521B2 (en) 2009-10-23 2015-12-01 Integrated Furniture Technologies Limited Adjustable furniture
US9474375B2 (en) 2007-04-26 2016-10-25 Integrated Furniture Technologies Limited Adjustable furniture
US10004334B2 (en) 2010-09-09 2018-06-26 Integrated Furniture Technologies Limited Lift-recliner chair
US10226132B2 (en) 2013-09-20 2019-03-12 Integrated Furniture Technologies Limited Adjustable bed
US10334951B2 (en) 2014-12-11 2019-07-02 Dewertokin Gmbh Adjustable furniture
US10932584B2 (en) 2015-03-11 2021-03-02 Motus Mechanics Limited Adjustable bed
US11395549B2 (en) 2018-08-09 2022-07-26 Eevolv Ltd Drive mechanism
US11812857B2 (en) 2016-06-13 2023-11-14 Motus Mechanics Limited Adjustable furniture
US12193572B2 (en) 2019-01-24 2025-01-14 Eevolv Ltd. Adjustable chair

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005001877A1 (de) * 2005-01-14 2006-07-27 Deon Ag Möbel, insbesondere Sitzmöbel
US10512333B2 (en) * 2018-03-22 2019-12-24 L&P Property Management Company Low-profile, zero gravity, all-linkage seat mechanism with added back recline

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2652101A (en) * 1952-01-14 1953-09-15 Samsky Abraham Adjustable headrest
GB724385A (en) * 1952-10-22 1955-02-16 Anton Lorenz An adjustable reclining chair or the like article of furniture
US2743765A (en) * 1953-01-21 1956-05-01 Lorenz Anton Reclining article of furniture
US2746520A (en) * 1952-04-25 1956-05-22 Ducrot Albert Reclining chair
US2750988A (en) * 1954-12-28 1956-06-19 Norman P Martin Article of repose for supporting the body of a person
US2865431A (en) * 1956-04-27 1958-12-23 Ruaud Bernard Henri Transformable folding chair

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2652101A (en) * 1952-01-14 1953-09-15 Samsky Abraham Adjustable headrest
US2746520A (en) * 1952-04-25 1956-05-22 Ducrot Albert Reclining chair
GB724385A (en) * 1952-10-22 1955-02-16 Anton Lorenz An adjustable reclining chair or the like article of furniture
US2743765A (en) * 1953-01-21 1956-05-01 Lorenz Anton Reclining article of furniture
US2750988A (en) * 1954-12-28 1956-06-19 Norman P Martin Article of repose for supporting the body of a person
US2865431A (en) * 1956-04-27 1958-12-23 Ruaud Bernard Henri Transformable folding chair

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5246266A (en) * 1990-09-18 1993-09-21 Chairworks Taiwan Limited Chair
US9474375B2 (en) 2007-04-26 2016-10-25 Integrated Furniture Technologies Limited Adjustable furniture
US10405660B2 (en) * 2009-08-18 2019-09-10 Dewertokin Gmbh Adjustable furniture
US20120193946A1 (en) * 2009-08-18 2012-08-02 Dale Robertson Adjustable furniture
US9241571B2 (en) * 2009-08-18 2016-01-26 Integrated Furniture Technologies Limited Adjustable furniture
US9198521B2 (en) 2009-10-23 2015-12-01 Integrated Furniture Technologies Limited Adjustable furniture
US9155388B2 (en) 2010-09-09 2015-10-13 Integrated Furniture Technologies Limited Lift-recliner chair and method thereof
US10004334B2 (en) 2010-09-09 2018-06-26 Integrated Furniture Technologies Limited Lift-recliner chair
FR2995511A1 (fr) * 2012-09-14 2014-03-21 Didier Marc Monard Mecanisme d'equilibrage d'un siege pendulaire
US10226132B2 (en) 2013-09-20 2019-03-12 Integrated Furniture Technologies Limited Adjustable bed
US10334951B2 (en) 2014-12-11 2019-07-02 Dewertokin Gmbh Adjustable furniture
US10932584B2 (en) 2015-03-11 2021-03-02 Motus Mechanics Limited Adjustable bed
US11812857B2 (en) 2016-06-13 2023-11-14 Motus Mechanics Limited Adjustable furniture
US11395549B2 (en) 2018-08-09 2022-07-26 Eevolv Ltd Drive mechanism
US20220312969A1 (en) * 2018-08-09 2022-10-06 Eevolv Ltd Drive mechanism
US11779117B2 (en) * 2018-08-09 2023-10-10 Eevolv Ltd. Drive mechanism
US12193572B2 (en) 2019-01-24 2025-01-14 Eevolv Ltd. Adjustable chair

Also Published As

Publication number Publication date
GB866533A (en) 1961-04-26
BE559312A (enrdf_load_stackoverflow) 1957-08-14
FR1178947A (fr) 1959-05-19

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