GEARING STAGE Russian patent published in 2013 - IPC B60N2/225 F16H13/08 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, particularly, to truck seat gearing. Seat gearing stage is composed of friction gearing and comprises case, drive 12, driven link 14 shifted from drive mechanism 12 by eccentricity e and ball 15 or some other solid of revolution to transmit forces between drive and driven mechanisms 12 and 14, respectively. Said ball 15 or some other solid of revolution is arranged in wedge-like clearance between said mechanisms 12 and 14. Gearing stage is composed of changeable engagement whereat ball 15 or other solid of revolution extends from wedge-like clearance or fits therein between drive and drive elements 12, 14 by means of electric current and/or mechanical means. To force said ball 15 or other solid of revolution from or in said clearance driving yoke 41 is arranged and controlled from outside. Position of eccentricity e relative to case 5 does not vary while gearing stage i features two different gear ratios depending on direction.

EFFECT: controlled gearing stage.

15 cl, 14 dwg