RATCHET WHEEL DRIVE Russian patent published in 2008 - IPC F16H29/12 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to ratchet wheel drives designed to reduce speed of rotation at constant gear ratio. Proposed ratchet wheel drive has post, driven ratchet wheel with external teeth, driving shaft with cam shaped to curve close to Archimedean spiral, rocker pusher with roller, pawl hinge-mounted on pusher and engaging by tooth with ratchet wheel, and second rocker pusher with pawl arranged in one plane with first pusher so that its roller moves in antiphase relative to first one.

EFFECT: provision of uniform rotation of driven shaft at small axial dimensions.

4 cl, 2 dwg