US3558185A - Reclining chair mechanism - Google Patents

Reclining chair mechanism Download PDF

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Publication number
US3558185A
US3558185A US758843A US3558185DA US3558185A US 3558185 A US3558185 A US 3558185A US 758843 A US758843 A US 758843A US 3558185D A US3558185D A US 3558185DA US 3558185 A US3558185 A US 3558185A
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United States
Prior art keywords
mounting bracket
chair
reclining
seat
seat mounting
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
US758843A
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English (en)
Inventor
Ned W Mizelle
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.)
Hoover Group Inc
General Steel Products Co Inc Co
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General Steel Products Co Inc Co
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Publication date
Application filed by General Steel Products Co Inc Co filed Critical General Steel Products Co Inc Co
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Publication of US3558185A publication Critical patent/US3558185A/en
Assigned to FIRST NATIONAL BANK OF BOSTON, THE reassignment FIRST NATIONAL BANK OF BOSTON, THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HOOVER GROUP, INC., A CORP. OF DE.
Assigned to HOOVER GROUP, INC. reassignment HOOVER GROUP, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HOOVER UNIVERSAL, INC.
Anticipated expiration legal-status Critical
Assigned to PIONEER MANUFACTURING, INC., A CORP. OF KY reassignment PIONEER MANUFACTURING, INC., A CORP. OF KY ASSIGNS THE ENTIRE INTEREST EFFECTIVE AS MAY 9, 1984 Assignors: HOOVER UNIVERSAL, INC.
Assigned to HOOVER GROUP, INC. reassignment HOOVER GROUP, INC. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). RELEASE OF SECURITY INTEREST RECORDED AT REEL 4492 FRAME 0790 DATED 12/02/85 Assignors: FIRST NATIONAL BANK OF BOSTON, THE
Expired - Lifetime legal-status Critical Current

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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
    • A47C1/0355—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 actuated by linkages, e.g. lazy-tongs mechanisms

Definitions

  • This invention relates to adjustable support mechanisms and in particular to such mechanisms adapted for use in multi-position reclining chairs.
  • support mechansims are provided to arrange the chair in three preselected arrangements to support the occupant selectively in an upright position, a semi-recumbent position, or a substantially recumbent position.
  • the mech anisms provide selective disposition of the chair set, back and an associated leg rest suitably for such selective support of the occupant.
  • the legs rest and chair back are cooperatively associated with the seat support by linkage means providing the desired selective arrangement of the chair elements as discussed above.
  • linkage means providing the desired selective arrangement of the chair elements as discussed above.
  • the linkage structures are relatively complex and, thus, expensive.
  • the present invention comprehends an improved three position reclining chair mechanism having simplified economical construction, thereby eliminating the above discussed disadvantages of such known chair mechanisms, while yet providing highly desirable facilitated adjustable positioning of the leg rest, chair seat and chair back.
  • the mechanism of the present invention provides an improved mechanical control of the chair members to effectively maintain the upright postion of the chair back relative to the seat while the leg rest is elevated and extended relative to the seat during movement from upright position to intermediate position. and to maintain the leg rest elevated and extended relative to the seat while the back reclines relative to the seat during adjustment of the chair from the intermediate to the reclining position.
  • the present mechanism provides this improved functioning by means of a novel cooperative association of an improved control linkage means with mechanism elements movably supporting the leg rest, seat and chair back.
  • the control linkage means includes a novel arrangement of supporting links including a cam link for controlling the selective disposition of the mechanism elements.
  • the cam structure functions to retain the seat against forward displacement during movement of the rear portion thereof between the intermediate and reclining positions, and thus prevents the leg rest from dropping and retract- "ice ing during such movements. It also limits upward displacement of the rear portion of the seat during movement from inermediate to reclining position.
  • the cam structure further is arranged to permit unrestricted forward movement of the seat from the intermediate position to the chair-forming upright position and concurrent retraction of the leg rest means.
  • the control linkage portion of the mechanism further cooperates with the means for supporting the leg rest to provide a generally maintained horizontal disposition of the chair seat while moving upwardly from the intermediate position to the reclining position while the chair back is swung to a substantially horizontal arrangement.
  • the present mechanism further provides a control of the leg rest. disposition so as to maintain the leg rest substantially fixed relative to the front of the seat in each of the intermediate and reclining positions.
  • the present mechanism provides the improved functioning discussed above in an extremely simple manner with the chair elements being elfectively balanced in the different positions, while yet permitting ready operation of the mechanism for selective dispositioning of the chair elements.
  • Another object of the invention is to provide such a reclining chair mechanism of simple and economic construction while yet providing facilitated selective adjustment of the chair elements.
  • a further object of the invention is to provide such a reclining chair mechanism providing improved control of the movement of the chair elements to the respective selective positions.
  • FIG. 3 is a view similar to FIG. 2 with the mechanism in full reclining position.
  • a reclining chair generally designated 10, is shown to comprise a base, gene-rally designated 11, including side rails 12, back bars 13 and 14, a forward cross member 15, and floor supports comprising a pair of front caster legs 16 and rear downturned legs 17.
  • the upper portion of the chair includes arm front posts 18 and tops 19, and a back frame 20.
  • the seat member of the chair is omitted from the drawings, and the back frame is shown only in FIG. 1.
  • a pair of right and left hand recliner mechanisms are mounted on the side rails 12, and only one such mechanism is illustrated. It includes a mounting plate 21 which is screwed to the side rail, and a seat mounting bracket 22, a back mounting bracket 23 and a leg rest bracket 24, all are carried on the plate 21 by linkage means, indicated general-1y at 2-5, which is the subject of the present invention.
  • the chair seat may be any conventional unit, such as an upholstered inner spring cushion, which is secured to the seat mounting bracket 22. and a leg rest frame 26 is mounted on the leg rest bracket 24.
  • Brackets 22, 23 and 24 are selectively disposed to provide three different positions of the chair 10, including the chair-forming position of FIG. 1; the intermediate position of FIG. 2 in which the seat bracket 22 is moved rearwardly and tilted down in the rear, the leg rest bracket 24 is elevated, and the back bracket 23 and seat bracket 22 maintain the same angular relationship as in the position of FIG. 1; and the full reclining position of FIG. 3 in which the rear of the seat is raised somewhat from the intermediate position and the chair back is disposed substantially horizontally in alignment with the leg rest 25 and the seat.
  • the seat mounting bracket 22 includes a front portion 29 and a rear portion 30.
  • the leg rest mounting bracket 24 is swingably carried on the seat mounting bracket front portion 29 by a forward carrying means, generally designated 31.
  • Theback mounting bracket 23 is swingably carried by rearward carrying means, generally designated 32, carried on the rear portion 30 of the seat mounting bracket 22 and on the base mounting plate 21.
  • Linkage means 25 further includes a control linkage means, generally designated 33, carried on the base mounting plate 21 and connected to forward carrying means 31 and the seat mounting bracket 22 for controlling the movement of the brackets and forward and rearward carrying means to provide the desired selective positioning of the chair elements as discussed above.
  • carrying means 31 In the chair-forming upright position of the chair 10, as shown in FIG. 1, the forward carrying means 31 is arranged to dispose the leg rest bracket 24 in a retracted position.
  • carrying means 31 includes a first link 34, a second, long link 35, an extension arm 36 and a bell crank 37.
  • the carrying means 31 effectively defines a lazy tongs arrangement wherein long link 35 and extension arm 36 are pivotally connected intermediate their ends by a pivot 38.
  • the long link 35 is pivotally connected at 39 to the bracket 24 and at 40 to the bell crank 37.
  • Link 34 is pivotally connected at 41 to a mid-portion of bracket 24 and at 42 to the lower end of the extension arm 36.
  • the upper end of the extension arm 36 is pivoted at 43 on the forward end of the chair seat mounting bracket 22.
  • the bell crank 37 is pivoted at 44 on the chair seat mounting bracket 22 rearwardly of pivot 43.
  • the forward carrying means 31 is arranged to swing the leg rest 24 forwardly and upwardly from the retracted position of FIG. 1 by a clockwise swinging of the extension arm 36 and bell crank 37 on pivots 43 and 44.
  • bell crank portion 46 abuts a second shoulder portion 47 of extension arm 36 to limit the clockwise swinging movement thereof.
  • the rearward carrying means 32 disposes the back mounting bracket 23 in a generally horizontal position. More specifically, carrying means 32 includes a pivot 48 connecting the forward end of the bracket 23 to an upstanding portion 49 on the rear end of the seat mounting bracket 22, and a link 50 pivotally connected at 51 to the back mounting bracket 23 and at 52 to the base mounting plate 21.
  • the carrying means 32 moves the back mounting bracket 23 correspondingly rearwardly and downwardly to maintain a substantially identical relationship between the brackets 22 and 23 in both positions. As shown in FIG.
  • the seat mounting bracket 22 is displaced upwardly from the intermediate position of FIG. 2 so that pivot 48 is displaced upwardly from its intermediate position, thereby swinging the bracket 23 about the pivot 51 to dispose the chair back in a full reclining disposition generally aligned with the chair seat.
  • the control linkage means 33 includes a first member comprising a forward bell crank 53 having its fulcrum pivoted at 54 on the base mounting plate 21, pivoted at 55 to the fulcrum of hell crank 37 of the forward carrying means 31, and pivoted at 56 to one end of a short connecting link 57.
  • a second member comprising a rear control lever 58 is pivotally mounted intermediate its ends at 59 on the base mounting plate 21 and is pivotally connected at one end by pivot 59 to the other end of connecting link 57.
  • a rear link comprising a cam link 60 is pivotally connected at one end by a pivot 61 to the rear portion 30 of the seat mounting bracket 22 and its mid-portion is pivotally connected by a pivot 62 to the rear end of the rear control lever 58.
  • the lower rear surface 63 of the cam link 60 defines a rearwardly facing arcuate cam surface terminating at its lower end in a turned stop portion 64.
  • the cam link 60 is provided with a rearwardly open notch 65.
  • a cam guide stud 66 carried on base mounting plate 21 is engaged by notch 65 to provide a disengageable, pivotal restrictive connection.
  • the cam link 60 may then be moved upwardly from the intermediate disposition, as shown in FIG. 2, to the full reclining position, as shown in FIG. 3.
  • the cam surface 63 may slidably bear against the stud 66 to prevent forward movement of the seat mounting bracket 22 and thereby guide the seat mounting bracket and back mounting bracket 23 to the elevated arrangement of FIG. 3.
  • the stud 66 engages the stop shoulder portion 64 of the cam surface 63 at the full reclining position of the mechanism to limit further upward movement of the seat mounting bracket 22 and thus retain the chair mechanism in the extreme, or full, reclining position wherein the occupant of the chair 10 is effectively recumbent.
  • the forward carrying means 31 substantially maintains the relative relationship of the leg rest bracket 24 and the seat mounting bracket 22 as obtained in the intermediate position of FIG. 2. As illustrated, a slight displacement of the leg rest may occur.
  • the control linkage means 33 is substantially rearranged to provide the above discussed upward displacement of the seat mounting bracket 22.
  • the forward bell crank 53 is pivoted in a clockwise manner, as seen in FIG. 3, about the pivot 54 to provide the upward displacement of pivot 55 and the rear control lever 58 is pivoted in a counterclockwise direction about the pivot 59 to permit the upward displacement of the pivot 61 of the rear portion 30 of the seat mounting bracket 22.
  • the cam link 60 swings slightly clockwise on the pivot 62 during this movement.
  • the linkage means provides controlled selective positioning of the chair 10 in the upright, intermediate and full reclining positions.
  • the user may effect a repositioning of the chair from the upright position to the intermediate position by simple rearward thrust on the chair back whereby the resultant rearward movement of seat mounting bracket 22 causes the leg rest bracket 24 to be swung to the leg supporting position of FIG. 2 as discussed above.
  • the chair 10 In the intermediate position, the chair 10 is suitably arranged for activities such as reading, television viewing, and the like because the angular relationship between the seat and the back is substantially the same as in upright position.
  • the user need merely provide a further rearward thrust on the chair back while removing pressure from the lowermost portion of the chair seat, permitting the rear portion of the seat mounting bracket 22 to be raised and concurrently operate the control linkage means 33 to elevate the front portion 29 of the seat mounting bracket.
  • the user need merely press down on the rear portion of the seat thereby urging the cam link '60 downwardly and the pivot 62 correspondingly downwardly to lower the pivot whereby the seat is lowered and the chair back swung upwardly on the bracket 23.
  • a seat mounting bracket having a front portion and a rear portion
  • control linkage means including a bell crank pivotally carried at its fulcrum on said base and having a front arm and a rear arm, a lever pivoted on said base intermediate its ends and rearwardly of the bell crank, a connecting link pivotally connected to the rear arm of the bell crank and to the front of the lever, means pivotally connecting said front arm of the bell crank to said forward means at a position spaced below said seat mounting bracket, a cam link pivotally suspended from said rear portion of said seat mounting bracket and pivotally connected to the rear end of said lever at a position spaced below said seat mounting bracket, said control linkage means cooperating with said forward means and said rearward means to selectively dispose (a) said seat mounting bracket in a forward, lowermost seating position with said leg rest mounting bracket disposed in a lowermost, retracted position and said back mounting bracket in a forwardmost seating :position, (b) said seat mouting bracket in a rearwardly lowered intermediate position with said leg rest mounting bracket disposed in an elevated, leg support position and said back mounting bracket and seat mounting bracket in
  • a seat mounting bracket having a front portion and a rear portion; a back mounting bracket; a leg rest bracket; forward means swingably carrying said leg rest bracket on said front portion of said seat mounting bracket;
  • control linkage means including a first member pivotal- 'ly carried on said base, a second member pivotally carried on said base, means swingably connecting said first and second members, means pivotally connecting said first member to said forward means at a position spaced below said seat mounting bracket, rear link means comprising a cam link pivotally suspended from the rear portion of the seat mounting bracket, means pivotally connecting said cam link to said second member below said seat mounting bracket, a curved, rearwardly facing cam surface that extends downwardly from the pivotal connection of said cam link with the second member, a notch in the cam surface immediately adjacent said last named pivotal connection, and a stud on the base which said notch engages, said control linkage means cooperating with said forward means and to said rearward means to selectively dispose (a) said seat mounting bracket in a forward, lowermost seating position with said leg rest mounting bracket disposed in a lowermost, retracted position and said back mounting bracket in a forwardmost seating position, and with said notch engaged with said stud, (b) said seat mounting bracket in a
  • a seat mounting bracket having a front portion and a rear portion; a back mounting bracket; a leg rest bracket; forward means swingably carrying said leg rest bracket on said front portion of said seat mounting bracket;
  • control linkage means pivotally mounted on said base 'and operatively connected to said forward means and to the rear portion of said seat mounting bracket to selectively dispose (a) said seat mounting bracket in a forward, lowermost seating position with said leg rest mounting bracket disposed in a lowermost, retracted position and said back mounting bracket in a forwardmost seating position, (b) said seat mounting bracket in a rearwardly lowered intermediate position with said leg rest mounting bracket disposed in an elevated, leg support position and said back mounting bracket and seat mounting bracket in substantially unchanged positions relative to one another, and (c) said seat mounting bracket in a substantially vertically raised reclining position with said leg rest mounting bracket disposed in an elevated leg supporting position, and said back mounting bracket in an extreme pivotally lowered reclining position, said control linkage means including a cam link which is pivotally suspended from the rear portion of the seat mounting bracket and has a pivotal connection with a forwardly extending component of said control linkage means, said cam link having a curved, rearwardly facing cam surface that extends downwardly from said pivotal connection, and
  • a seat mounting bracket having a front portion and a rear portion; a back mounting bracket; a leg rest bracket; forward means swingably carrying said leg rest bracket on said front portion of said seat mounting bracket;
  • control linkage means including a first member pivotally carried on said base, a second member pivotally carried on said base, means swingably connecting said first and second members, means pivotally connecting said first member to said forward means at a position spaced below said seat mounting bracket, rear link means comprising a cam link pivotally suspended from the rear portion of the seat mounting bracket, means pivotally connecting said cam link to said second member below said seat mounting bracket, and a disengageable pivotal restrictive connection between the cam link and the base immediately adjacent said last named pivotal connection, said control linkage means cooperating with said forward means and said rearward means to selectively dispose (a) said seat mounting bracket in a forward, lowermost seating position with said leg rest mounting bracket disposed in a lowermost, retracted position and said back mounting bracket in a forwardmost seating position, and with said pivotal restrictive connection engaged, (b) said seat mounting bracket in a rearwardly lowered intermediate position with said leg rest mounting bracket disposed in an elevated, leg support position and said back mounting bracket and seat mounting bracket in substantially unchanged positions relative to one another, and with said
  • cam link includes an extension below its pivotal restrictive connection defining a curved cam surface that bears on a portion of the base during movement from intermediate position to reclining position.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
US758843A 1968-09-10 1968-09-10 Reclining chair mechanism Expired - Lifetime US3558185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75884368A 1968-09-10 1968-09-10

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Publication Number Publication Date
US3558185A true US3558185A (en) 1971-01-26

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Application Number Title Priority Date Filing Date
US758843A Expired - Lifetime US3558185A (en) 1968-09-10 1968-09-10 Reclining chair mechanism

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US (1) US3558185A (de)
BE (1) BE733469A (de)
DE (1) DE1934088A1 (de)
FR (1) FR2017684A1 (de)
GB (1) GB1216459A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865432A (en) * 1973-05-29 1975-02-11 Royal Dev Co Reclining chair
DE2801307A1 (de) * 1978-01-13 1979-07-19 Himolla Hierl Gmbh C Hebelverstellgetriebe fuer sitz-liege- sessel mit ausfahrbarer beinstuetze
US5348367A (en) * 1991-07-01 1994-09-20 Lumex, Inc. Reclining chair mechanism
US5374101A (en) * 1992-07-29 1994-12-20 L&P Property Management Company, Inc. Three-way reclining chair
US6644733B1 (en) * 2002-08-12 2003-11-11 Shin Yeh Enterprise Co., Ltd. Chair with a seat slidable relative to a seat base for synchronously actuating a footrest and a backrest
US6793279B2 (en) * 1998-05-18 2004-09-21 Ultra-Mek, Inc. Reclining seating unit movable to heart-rest position
US20050035632A1 (en) * 2003-07-30 2005-02-17 Chuen-Jong Tseng Reclining chair with extendible leg rest
WO2016183543A1 (en) * 2015-05-14 2016-11-17 VIP Cinema LLC Motor driven sloped floor recline mechanism for a theater seat
US10188213B2 (en) 2015-05-14 2019-01-29 Vip Cinema, Llc Dual motion sloped floor recline mechanism for a theater seat
CN113812790A (zh) * 2021-08-18 2021-12-21 锐迈机械科技（吴江）有限公司 一种座椅的压缩型联动机构、座椅支架及座椅单元

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865432A (en) * 1973-05-29 1975-02-11 Royal Dev Co Reclining chair
DE2801307A1 (de) * 1978-01-13 1979-07-19 Himolla Hierl Gmbh C Hebelverstellgetriebe fuer sitz-liege- sessel mit ausfahrbarer beinstuetze
US5348367A (en) * 1991-07-01 1994-09-20 Lumex, Inc. Reclining chair mechanism
US5374101A (en) * 1992-07-29 1994-12-20 L&P Property Management Company, Inc. Three-way reclining chair
US6793279B2 (en) * 1998-05-18 2004-09-21 Ultra-Mek, Inc. Reclining seating unit movable to heart-rest position
US6644733B1 (en) * 2002-08-12 2003-11-11 Shin Yeh Enterprise Co., Ltd. Chair with a seat slidable relative to a seat base for synchronously actuating a footrest and a backrest
US20050035632A1 (en) * 2003-07-30 2005-02-17 Chuen-Jong Tseng Reclining chair with extendible leg rest
US6902233B2 (en) * 2003-07-30 2005-06-07 Taiwan Shin Yeh Enterprise Co., Ltd. Reclining chair with extendible leg rest
WO2016183543A1 (en) * 2015-05-14 2016-11-17 VIP Cinema LLC Motor driven sloped floor recline mechanism for a theater seat
CN107847052A (zh) * 2015-05-14 2018-03-27 Vip影院有限责任公司 用于剧院座椅的马达驱动的斜地面倾斜机构
US10118508B2 (en) 2015-05-14 2018-11-06 Vip Cinema, Llc Motor driven sloped floor recline mechanism for a theater seat
US10188213B2 (en) 2015-05-14 2019-01-29 Vip Cinema, Llc Dual motion sloped floor recline mechanism for a theater seat
US10507742B2 (en) 2015-05-14 2019-12-17 VIP Cinema LLC Motor driven sloped floor recline mechanism for a theater seat
US11793311B2 (en) 2015-05-14 2023-10-24 Vip Luxury Seating, Llc. Dual motion sloped floor recline mechanism for a theater seat
CN113812790A (zh) * 2021-08-18 2021-12-21 锐迈机械科技（吴江）有限公司 一种座椅的压缩型联动机构、座椅支架及座椅单元
CN113812790B (zh) * 2021-08-18 2024-06-11 锐迈科技股份有限公司 一种座椅的压缩型联动机构、座椅支架及座椅单元

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Publication number Publication date
DE1934088A1 (de) 1970-05-06
GB1216459A (en) 1970-12-23
FR2017684A1 (de) 1970-05-22
BE733469A (de) 1969-11-03

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AS Assignment

Owner name: HOOVER GROUP, INC., A CORP. OF DE.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HOOVER UNIVERSAL, INC.;REEL/FRAME:004502/0191

Effective date: 19851031

Owner name: FIRST NATIONAL BANK OF BOSTON, THE

Free format text: SECURITY INTEREST;ASSIGNOR:HOOVER GROUP, INC., A CORP. OF DE.;REEL/FRAME:004492/0790

Effective date: 19851107

AS Assignment

Owner name: PIONEER MANUFACTURING, INC., LEMONS MILL PIKE, GEO

Free format text: ASSIGNS THE ENTIRE INTEREST EFFECTIVE AS MAY 9, 1984;ASSIGNOR:HOOVER UNIVERSAL, INC.;REEL/FRAME:005113/0044

Effective date: 19670124

AS Assignment

Owner name: HOOVER GROUP, INC.

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:FIRST NATIONAL BANK OF BOSTON, THE;REEL/FRAME:005580/0097

Effective date: 19900531