Chair with reclineable back and adjustable energy mechanism

Details Chair with reclineable back and adjustable energy mechanism Chair with reclineable back and adjustable energy mechanism

1997-10-24

2000-07-11

Nelson, Jr., Milton

Chairs and seats

Back movement resiliently opposed in operating position

Back and seat adjust simultaneously

2973004, 2973005, 2973034, 2973033, A47C 300

Patent

active

060861533

ABSTRACT:
A chair is provided having a base assembly including a base frame, a back frame pivoted to the base frame for movement between upright and reclined positions, and a seat slidably supported on the base frame and pivoted to the back frame so that the seat moves forwardly and its rear moves forwardly and downwardly with the back frame upon recline. A flexible back is connected to the back frame at top and bottom locations and is provided with lumbar adjustment for improved lumbar force/support and shape. A seat is provided with seat depth adjustment and with active and passive thigh flex support. A novel energy mechanism is provided that includes a transverse spring, a lever, and a moment arm shift adjuster for adjusting the spring tension on the back frame. The moment arm shift adjuster is readily adjustable and includes an overtorque device to prevent damage to components of the energy mechanism.

REFERENCES:
patent: Re32884 (1989-03-01), Kluting et al.
patent: 2087254 (1937-07-01), Herold
patent: 2471024 (1949-05-01), Cramer
patent: 2497395 (1950-02-01), Cramer
patent: 2609032 (1952-09-01), Cramer
patent: 4083209 (1978-04-01), Sloan, Jr.
patent: 4143910 (1979-03-01), Geffers et al.
patent: 4270797 (1981-06-01), Brauning
patent: 4314728 (1982-02-01), Faiks
patent: 4373692 (1983-02-01), Knoblauch et al.
patent: 4411469 (1983-10-01), Drabert et al.
patent: 4429917 (1984-02-01), Diffrient
patent: 4452449 (1984-06-01), Propst
patent: 4502729 (1985-03-01), Locher
patent: 4591207 (1986-05-01), Nithammer et al.
patent: 4682173 (1987-07-01), Kotoh et al.
patent: 4682814 (1987-07-01), Hansen
patent: 4684173 (1987-08-01), Locher
patent: 4695093 (1987-09-01), Suhr et al.
patent: 4709963 (1987-12-01), Uecker et al.
patent: 4720142 (1988-01-01), Holdredge et al.
patent: 4744600 (1988-05-01), Inoue
patent: 4758045 (1988-07-01), Edel et al.
patent: 4763950 (1988-08-01), Tobler
patent: 4765679 (1988-08-01), Lanuzzi et al.
patent: 4840426 (1989-06-01), Vogtherr et al.
patent: 4913303 (1990-04-01), Harris
patent: 4966411 (1990-10-01), Katagiri et al.
patent: 4979778 (1990-12-01), Shields
patent: 4984846 (1991-01-01), Ekornes
patent: 5026117 (1991-06-01), Faiks et al.
patent: 5042876 (1991-08-01), Faiks
patent: 5087098 (1992-02-01), Ishizuka
patent: 5110003 (1992-05-01), MacWilliams
patent: 5133587 (1992-07-01), Hadden
patent: 5137330 (1992-08-01), Lie et al.
patent: 5150948 (1992-09-01), Volkle
patent: 5160184 (1992-11-01), Faiks et al.
patent: 5209548 (1993-05-01), Locher
patent: 5217278 (1993-06-01), Harrison et al.
patent: 5224758 (1993-07-01), Takamatsu et al.
patent: 5249839 (1993-10-01), Faiks et al.
patent: 5282670 (1994-02-01), Karsten et al.
patent: 5302002 (1994-04-01), Nagasaka
patent: 5354120 (1994-10-01), Volkle
patent: 5375912 (1994-12-01), Stulik et al.
patent: 5385388 (1995-01-01), Faiks et al.
patent: 5397165 (1995-03-01), Grin et al.
patent: 5405188 (1995-04-01), Hanson
patent: 5449086 (1995-09-01), Harris
patent: 5460427 (1995-10-01), Serber
patent: 5474360 (1995-12-01), Chang
patent: 5499861 (1996-03-01), Locher
patent: 5518294 (1996-05-01), Ligon, Sr. et al.
patent: 5529201 (1996-06-01), Tallent et al.
patent: 5564783 (1996-10-01), Elzenbeck et al.
patent: 5577807 (1996-11-01), Hodge et al.
patent: 5582459 (1996-12-01), Hama et al.
patent: 5590932 (1997-01-01), Olivieri
patent: 5630647 (1997-05-01), Heidmann et al.
patent: 5651584 (1997-07-01), Chenot et al.

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