FIELD: transport.
SUBSTANCE: invention relates to viscous gear shift coupling. Front wheel bush 8 rotates spring loaded control link 9 coupled via flexible links (16) and ring (26) with viscous bush outer surface. Clearance between viscous coupling rotary and fixed washers is filled with Newton fluid. With angular speed varying, viscous friction between washers varies proportionally to cause shift of control link 9 for it to throw in rear gear shifter via mechanical half-couplings 10, 11, bush 8 and cable 6.
EFFECT: higher accuracy and reliability.
3 dwg
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