Chairs and seats – Movable bottom – Bottom and back movable as a unit
Patent
1999-02-19
2000-02-22
Barfield, Anthony D.
Chairs and seats
Movable bottom
Bottom and back movable as a unit
29734426, 248425, B60N 214, A47C 102
Patent
active
060271701
ABSTRACT:
A seat assembly (11) is described including a seat (12), a support base (14), and an orbital guide assembly (16). The orbital guide assembly includes a first plate (30) connected to the support base, a second plate (32) connected to the seat, and an intermediate low-friction member (34) positioned between the first and second plates. The first plate includes at least two male elements (40), (42), such as guide pins. The second plate includes at least two arcuate female elements (50), (52), such as slots, adapted to engage their respective male elements. During use, the first pin acts as a first pivot point while the second pin translates along its corresponding second arcuate slot. Once the second pin completes its translation, the second pin then acts as a second pivot point while the first pin translates along its corresponding first arcuate slot. Various additional male and female elements may be used, either as stabilizing components or as additional pivot points.
REFERENCES:
patent: 2822858 (1958-02-01), Mussler
patent: 3013837 (1961-12-01), Pessl et al.
patent: 3066979 (1962-12-01), Pitts et al.
patent: 4844543 (1989-07-01), Ochial
patent: 5390978 (1995-02-01), Janisch
Benz Walter E.
Farmer Daniel J.
Barfield Anthony D.
Paccar Inc
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