Chairs and seats – Movable bottom – Tiltable
Patent
1999-05-12
1999-11-16
Barfield, Anthony D.
Chairs and seats
Movable bottom
Tiltable
29741132, 29741137, 29741139, 297115, A47C 1031
Patent
active
059844086
ABSTRACT:
A system for supporting a seat-pan on a chair and for providing movement to an armrest on the chair. The system includes a mounting assembly with an upper rail having a front portion, a mid portion and a rear portion, and a lower rail having a front portion, a mid-portion and a rear portion. The upper rail is pivotally connected to the lower rail in a manner which allows g generally parallel motion of the rails relative to one another. An armrest support is pivotally attached to the mounting assembly, and includes a linkage for indexing movements of the armrest support relative to motion of the position of the upper rail relative to lower rail, so that motion of the upper rail relative to the lower rail produces a corresponding tilt of the armrest support.
REFERENCES:
patent: 1731709 (1929-10-01), Cropsey
patent: 2859801 (1958-11-01), Moore
patent: 4277102 (1981-07-01), Aaras et al.
patent: 4703974 (1987-11-01), Brauning
patent: 5725276 (1998-03-01), Ginat
patent: 5752683 (1998-05-01), Novis et al.
Barfield Anthony D.
Crabtree Edwin H.
Pizarro Ramon L.
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