PULSATING VARIABLE-SPEED DRIVE Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: driven shaft is built up of two parts 4 and 5 coaxially mounted on stand; reciprocating movement converting mechanism is disk 6 whose pin 7 is perpendicular to center line of drive shaft; drive also has two gear racks 8 and 9 of closed loop, two pairs of freewheel clutches 10 and 12 mounted on respective parts of driven shaft and used for engagement with disk; two half-couplings are engageable with racks and other two, with one another. As disk 6 turns about pin 7, racks 8 and 9 reciprocate and return to initial position under action of rocker 13. Racks 8 and 9 engage freewheel clutches 10, 12 and set driven shaft in motion. EFFECT: reduced mass and size. 1 dwg