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SLIDING-PAWL RATCHET MECHANISM WITH THREE DRIVING PAWLS |
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Description
Link 1 rotates about fixed axis A and has three symmetrically located slots a along which three prismatic pawls, 2, 3 and 4, slide. The pawls slide along axes located at angles of 120° from one another. Internaltooth ratchet wheel 5 with teeth b rotates freely about axis A. When link 1 rotates counterclockwise, pawls 2, 3 and 4 engage teeth b and rotate wheel 5 counterclockwise at the angular velocity of link 1. When link 1 rotates clockwise, wheel 5 is stationary. |
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