Vehicle seats

Details Vehicle seats Vehicle seats

1979-08-29

1982-10-12

Zugel, Francis K.

Chairs and seats

Back movement resiliently opposed in operating position

Constantly oriented during up-and-down movement

248564, 297355, A47C 300

Patent

active

043535941

ABSTRACT:
A suspension seat has a seat part, which includes a seat support frame and a back rest frame pivoted about a horizontal axis to the seat support frame, the seat part being mounted through a spring suspension on a base part, and a vibration damper of the piston and cylinder type pivotally connected between the seat and base parts. The lower end of the vibration damper is pivoted to the base part.
The upper end of the vibration damper is slidably connected to the back rest frame and pivotally connected to the upper closed end of a yoke whose lower ends are pivoted to the seat part as closely as convenient to the pivotal connection between the vibration damper and the base part to allow tilting of the back rest frame without significantly varying the distance between the ends of the vibration damper.

REFERENCES:
patent: 2432554 (1947-12-01), Knoedler
patent: 2840140 (1958-06-01), Harrington
patent: 3090647 (1963-11-01), Moore
patent: 3109621 (1963-11-01), Simons et al.
patent: 3774963 (1973-11-01), Lowe

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