TORQUE-LIMITING CLUTCH Russian patent published in 1995 - IPC

FIELD: protection of mechanisms against overloads. SUBSTANCE: inner clutch member is made in form of hollow cylinder 1 with projections to which connecting units are secured on levers; each connecting unit has fork 4 fitted on axle with two main rollers 5 and bush with axles carrying additional rollers 8. Fork 4 is received by bush; adjustable flexible members are arranged between them. Outer member of clutch embraces its inner member; outer member is made in form of internal sprocket 11 and is provided with two hubs having external toothed rims; teeth of one of rim are opposite to tooth space of internal sprocket. Working surfaces 16 and 17 of toothed rims of hubs are used as bearing surfaces for additional rollers 8; working surface of internal sprocket 11 of outer clutch member is used as bearing for main rollers 5. EFFECT: enhanced reliability. 2 dwg