US3801122A - Lounge chair having mobile base - Google Patents

Lounge chair having mobile base Download PDF

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Publication number
US3801122A
US3801122A US00323137A US3801122DA US3801122A US 3801122 A US3801122 A US 3801122A US 00323137 A US00323137 A US 00323137A US 3801122D A US3801122D A US 3801122DA US 3801122 A US3801122 A US 3801122A
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US
United States
Prior art keywords
chair
base
recited
casters
elements
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
US00323137A
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English (en)
Inventor
D White
E Shoemaker
E Gensler
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.)
La Z Boy Inc
Original Assignee
La Z Boy Inc
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 La Z Boy Inc filed Critical La Z Boy Inc
Application granted granted Critical
Publication of US3801122A publication Critical patent/US3801122A/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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/002—Chair or stool bases
    • A47C7/006—Chair or stool bases with castors
    • 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
    • A47C3/02—Rocking chairs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general ; Anti-clogging castors
    • B60B33/04—Castors in general ; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors
    • B60B33/06—Castors in general ; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors mounted retractably

Definitions

  • the invention pertains to a base for a lounge chair of the rocking type interconnected by spring units in the usual manner.
  • the base is provided with wheels at the front end which contact the floor and rubber strips or pads at the rear end which, when engaging the floor, retains the chair in fixed location.
  • the rear end of the base is also provided with casters, on which the rear end of the base is raised or lowered by a lever system which locks the casters in lowered position in which the pads are raised from the floor.
  • the chair When the chair is supported on the two wheels at the front end and on the pair of casters on the rear end, it can be moved by the occupant or by another person to different locations where the chair will again be retained against movement when the lever system is reversed to permit the casters to be retracted and to have the rear end of the chair rest upon the pads.
  • FIG. 1 is a view in elevation of a lounging chair mounted for rocking movement on the base of the present invention
  • FIG. 2 is a plan view of the base, the rocker parts and foot-rest structure of the chair illustrated in FIG. 1;
  • FIG. 3 is a view in side elevation of the structure illustrated in FIG. 2;
  • FIG. 4 is an enlarged view of the front end portion of the structure illustrated in FIG. 3;
  • FIG. 5 is a sectional view of the structure illustrated in FIG. 4, taken on the line 55 thereon;
  • FIG. 6 is an enlarged view of the rear end portion of the structure illustrated in FIG. 3, and
  • FIG. 7 is a broken plan view of the structure illustrated in FIG. 6.
  • a chair 11, as illustrated in FIG. 1, is of the lounging type, rockable upon a base 12 which embodies features of the present invention.
  • the chair has a leg rest 13 which is operated by a handle 14 to extended and retracted positions.
  • the rockable chair frame 21 has side frame elements 15 interconnected by cross members 16 and 17 at the front and rear end respectively.
  • the side frame elements 15 of the chair frame 21 have the convex bottom surface of the rocking members l8-resting upon the top section 19 of the base frame 12.
  • the rocking members 18 are connected to the side frame elements 15 and to the base 12 by spring units 22 of conventional construction.
  • the springs of the units have the top turns secured in slots in metal brackets 24 which are attached to the inner face of the rocking member 18 by a plurality of screws 25, as illustrated in FIG. 5.
  • the bottom turns of the springs are secured in slots in a metal bracket 26 which is secured to the bottom section 27 of the side frame elements of the base 12 by a plurality of screws 28.
  • the endmost turns of the springs are retained within the slots of the brackets 24 and 26 by struck-out tabs 29 which are bent thereover in the conventional manner.
  • a pair of wheels 31 are mounted within inverted U-shaped brackets 32 the outer leg of which is welded to the side frame elements 20, the inner longer legs of which are secured to the end of the square cross member 33.
  • a bolt 34 extends through the legs of the U-shaped brackets 32 and through the wheels 31 on which they are mounted for rotation.
  • the side frame elements 20 are herein illustrated as being made of strap steel having a top section 35 which is reversely bent at 36 at the front end and extending rearwardly at 37 and being offset at 38 downwardly to form the pad at the rear end.
  • the pad is completed by a strip of rubber 39 which is adhered or otherwise secured thereto.
  • the bottom strap is bent upwardly at 41 and rearwardly at 42 and provided with an aperture 43.
  • An L-shaped strap 44 has an end portion 45 disposed parallel to the portion 42 and provided with an aperture 46 aligned with the aperture 43.
  • the strap 44 is welded to the pad portion 38 and to the end of the downwardly sloping portion 47 of the top section 35.
  • the rear cross member 50 is welded between the top and bottom sections 35 and 37 of the side elements 20.
  • a U-shaped strip 48 is placed between the two sections 35 and 37 and welded thereto.
  • the bottom section 37 has a plurality of threaded apertures 49 for receiving the screws 28 which secure the spring bracket 26 thereto.
  • the apertures 43 and 46 at the rear end of the side frame elements 20 contain a slidable rod 51 having a slot 52 therein in which a lever 53 is secured by a pivot 54.
  • the lever has a cam surface 55 which engages the underside of the strap end portion 45 to move-the rod 51 downwardly.
  • the end of the rods has an aperture 56 extending thereinto for receiving and supporting the stem 57 of the casters 58.
  • the casters, as well as the tires on the wheels are preferably made of elastomeric material to reduce any noise and eliminate marring of the supporting surface.
  • the lever 53 has an operating arm 59 which is bent at right angles at 61 to which a crossbar 62 is secured by bolts 63 at both sides of the base 12.
  • a laterally extending portion 64 on the opposite end of the lever 53 has a cross bar 65 secured thereto at both sides of the base 12 by a plurality of bolts 66.
  • the bars 62 or 65 may be engaged to rock the levers 53 and operate the rods 51 to move the casters 58 into engagement with or away from the floor on which the chair is supported.
  • side frame elements 20 of the base 12 have been illustrated and described as being built up of strap steel, it is to be understood that the side frame elements 20 could be cast as a unit from aluminum, plastic or the like materials. Similar cross members 33 and 50 would interconnect the side elements 20 and the levers 53 would operate the rods 51 to move the casters 58 to and from the floor in the manner described above.
  • the cross bar 33 as illustrated in FIGS. 2 and 4, has a pair of spaced posts 67 secured thereto by screws 68.
  • a shaft 69 is supported in aligned apertures in the two posts for pivotally supporting a latch lever 71 which has an end 72 in position to engage one of a plurality of teeth 73 for locking the chair against forward tilting movement when the leg rest is extendd.
  • a wire loop 75 connected to the latch lever 71 releases the end 72 from the teeth 73 and permits the chair to again rock in the normal manner.
  • a hardened ring 74 is mounted within the aperture 46 in the top section 45 of the side frame elements against which the cam edge 55 of the lever 53 operates to prevent wear.
  • the leg rest operating mechanism 78 is not herein illustrated or described in detail as this is found in the above mentioned patent.
  • a base frame having side elements with a pair of cross members therebetween, a wheel mounted at the front end of each side element, a fixed floor engaging section at the rear of said side elements, a pair of casters at the rear of said side elements, and means for lowering said casters and raising the floor engaging sections from the floor when the casters move into engagement therewith.
  • a rocking element is mounted on the inner face of the chair frame having a downwardly presenting arcuate surface, and a flat top central section on said base engaged by said arcuate surfaces of said rocking elements.
  • cross bars interconnect the levers for moving them in either direction by a downward movement on one or the other cross bars.
  • interconnecting means are secured to said lowering means to have them operate in unison.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Legs For Furniture In General (AREA)
  • Chairs Characterized By Structure (AREA)
US00323137A 1973-01-12 1973-01-12 Lounge chair having mobile base Expired - Lifetime US3801122A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32313773A 1973-01-12 1973-01-12

Publications (1)

Publication Number Publication Date
US3801122A true US3801122A (en) 1974-04-02

Family

ID=23257871

Family Applications (1)

Application Number Title Priority Date Filing Date
US00323137A Expired - Lifetime US3801122A (en) 1973-01-12 1973-01-12 Lounge chair having mobile base

Country Status (7)

Country Link
US (1) US3801122A (it)
CA (1) CA1001600A (it)
GB (1) GB1437311A (it)
IT (1) IT997582B (it)
MY (1) MY7800222A (it)
ZA (1) ZA738725B (it)
ZM (1) ZM17873A1 (it)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4212495A (en) * 1979-01-26 1980-07-15 Sears, Roebuck & Co. Reclining chair
US5135284A (en) * 1991-01-09 1992-08-04 Leggett & Platt, Incorporated Knock-down chair back bracket
US5482546A (en) * 1994-03-30 1996-01-09 Canon Kabushiki Kaisha Dye, ink containing the same, and ink-jet recording method and instrument using the ink
US6089593A (en) * 1997-02-10 2000-07-18 Hill-Rom, Inc. Ambulatory care chair
US6154899A (en) * 1998-10-19 2000-12-05 Hill-Rom, Inc. Resident transfer chair
US6726279B1 (en) 1997-02-10 2004-04-27 Hill-Rom Services, Inc. Hydraulic controls for ambulatory care chair
US20090174162A1 (en) * 2007-12-21 2009-07-09 Gass Stephen F Mobile base for a table saw
US20120085882A1 (en) * 2010-10-07 2012-04-12 Rexon Industrial Corp., Ltd. Lifting machine base assembly for a machine tool
USD723847S1 (en) 2013-03-05 2015-03-10 Integra, Inc. Furniture legs
US9994072B2 (en) * 2014-09-17 2018-06-12 Medical Depot, Inc. Patient care bed
US20240225290A1 (en) * 2023-01-10 2024-07-11 Current Products Company, LLC Retractable wheel system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2561810B (en) * 2017-01-20 2022-12-21 The Helping Hand Company Ledbury Ltd Powered seat and related seating improvements

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US318673A (en) * 1885-05-19 Daniel wilcox
US352450A (en) * 1886-11-09 crane
US466573A (en) * 1892-01-05 Roller attachment for rocking or other chairs
GB889897A (en) * 1960-12-06 1962-02-21 Leonard Thomas Varran Improvements relating to rocking chairs
US3054623A (en) * 1960-11-14 1962-09-18 Tiffany Stand Company Stand having retractable casters
US3096121A (en) * 1961-07-21 1963-07-02 La Z Boy Chair Co Reclining platform rocking chair

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US318673A (en) * 1885-05-19 Daniel wilcox
US352450A (en) * 1886-11-09 crane
US466573A (en) * 1892-01-05 Roller attachment for rocking or other chairs
US3054623A (en) * 1960-11-14 1962-09-18 Tiffany Stand Company Stand having retractable casters
GB889897A (en) * 1960-12-06 1962-02-21 Leonard Thomas Varran Improvements relating to rocking chairs
US3096121A (en) * 1961-07-21 1963-07-02 La Z Boy Chair Co Reclining platform rocking chair

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4212495A (en) * 1979-01-26 1980-07-15 Sears, Roebuck & Co. Reclining chair
US5135284A (en) * 1991-01-09 1992-08-04 Leggett & Platt, Incorporated Knock-down chair back bracket
US5482546A (en) * 1994-03-30 1996-01-09 Canon Kabushiki Kaisha Dye, ink containing the same, and ink-jet recording method and instrument using the ink
US6089593A (en) * 1997-02-10 2000-07-18 Hill-Rom, Inc. Ambulatory care chair
US6315319B1 (en) 1997-02-10 2001-11-13 Hill-Rom Services, Inc. Ambulatory care chair
US6565112B2 (en) 1997-02-10 2003-05-20 Hill-Rom Services, Inc. Ambulatory care chair
US6726279B1 (en) 1997-02-10 2004-04-27 Hill-Rom Services, Inc. Hydraulic controls for ambulatory care chair
US6846042B2 (en) 1997-02-10 2005-01-25 Hill-Rom Services, Inc. Ambulatory care chair
US6154899A (en) * 1998-10-19 2000-12-05 Hill-Rom, Inc. Resident transfer chair
US6185769B1 (en) 1998-10-19 2001-02-13 Hill-Rom, Inc. Resident transfer chair
US8511693B2 (en) * 2005-03-31 2013-08-20 Sd3, Llc Mobile base for a table saw
US20090174162A1 (en) * 2007-12-21 2009-07-09 Gass Stephen F Mobile base for a table saw
US20120085882A1 (en) * 2010-10-07 2012-04-12 Rexon Industrial Corp., Ltd. Lifting machine base assembly for a machine tool
US8657306B2 (en) * 2010-10-07 2014-02-25 Rexon Industrial Corp., Ltd. Lifting machine base assembly for a machine tool
USD723847S1 (en) 2013-03-05 2015-03-10 Integra, Inc. Furniture legs
USD766636S1 (en) 2013-03-05 2016-09-20 Integra, Inc. Furniture leg
US9994072B2 (en) * 2014-09-17 2018-06-12 Medical Depot, Inc. Patient care bed
US10787034B2 (en) * 2014-09-17 2020-09-29 Medical Depot, Inc. Patient care bed
US20240225290A1 (en) * 2023-01-10 2024-07-11 Current Products Company, LLC Retractable wheel system
US12648647B2 (en) * 2023-01-10 2026-06-09 Current Products Company, LLC Retractable wheel system

Also Published As

Publication number Publication date
ZM17873A1 (en) 1974-07-22
CA1001600A (en) 1976-12-14
IT997582B (it) 1975-12-30
MY7800222A (en) 1978-12-31
AU6439274A (en) 1975-07-10
ZA738725B (en) 1974-10-30
GB1437311A (en) 1976-05-26

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