OPERATOR'S SEAT Russian patent published in 2006 - IPC B60N2/54 

FIELD: agricultural engineering.

SUBSTANCE: invention relates to design of seats, particularly, to devices for vibration isolation of operator's seats of self-propelled farm machinery. Proposed operator's seat base, skeleton with cushion and brackets interconnected by guide arrangement in form of parallel relative to each other upper and lower pair of strips whose ends are hinge-connected, respectively, on upper and lower brackets of base and seat skeleton. Shock-absorbing device is made in form of elastic suspension with swinging mechanism. Support member of shock-absorbing is hinge-connected with upper bracket of seat skeleton. Switching suspension is made in form of threaded rod with spherical profile on one of ends and threaded bushing connected with rod and also having spherical profile. Both spherical profiles of swinging suspension interact with conical surfaces of lower and upper strips, accordingly. Elastic member is made in form of pack of series-connected sets of plate elastic members. Set of plate elastic members of shock-absorbing device is made in form of two disk springs connected over outer diameter by means of T-shaped ring, and over inner diameter, by means of ring whose inner surface engages with outer surface of bushing rigidly secured by one end on base, and by other end slide-fitted in guide bushing.

EFFECT: increased efficiency of vibration isolation in horizontal direction, simplified design, increased operating characteristics.

2 cl, 2 dwg