Chairs and seats – Movable bottom – Tiltable
Patent
1997-10-24
1999-02-16
Cuomo, Peter M.
Chairs and seats
Movable bottom
Tiltable
297312, 2973002, A47C 102
Patent
active
058712585
ABSTRACT:
A chair is provided having a base assembly, a back frame pivoted to the base assembly for movement between upright and reclined positions, and a seat slidably supported on the base frame and pivoted to the back assembly 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. The seat includes a front section adjustably and/or flexibly supported on a rear section for optimal comfort while supporting a seated adult user's thighs, with the rear section being configured to carry a majority of the weight of a typical seated adult user. A novel energy mechanism is provided that includes 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.
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Battey Robert J.
DeKraker Larry
Heidmann Kurt R.
Johnson Michelle R.
Knoblock Glenn A.
Cuomo Peter M.
Steelcase Inc.
White Rodney B.
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