AUTOMATIC CLEARANCE REGULATOR IN BRAKE MECHANISMS OF VEHICLES Russian patent published in 1994 - IPC

FIELD: mechanical engineering; clearance adjustment in drum brakes. SUBSTANCE: regulator comprises operating lever 1 interacting via spring-loaded stop 5 with ratchet 6 secured on expander shaft 7. Stop 5 is capable of rotating and reciprocating in slot 2 of casing 3 of operating lever 1 and has supporting lug 9 contacting with supporting recess 12 of operating lever 1 in braking mode to ensure rigid locking of operating lever 1 with ratchet 6. Expander shaft 7 carries second ratchet interacting with spring-loaded stop of control unit which can rotate and reciprocate relative to the second ratchet and has a supporting lug contacting with supporting recess of control unit to ensure rigid locking of control unit and ratchet during adjustment of shoe-lining-to-drum clearance. EFFECT: improved design. 4 dwg