Autodesk Inventor Tutorial for Beginners - Practice Part - Ratchet Wheel

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Ratchet wheel:-
A ratchet is a mechanical device that allows continuous linear or rotary motion in only one direction while preventing motion in the opposite direction. Ratchets are widely used in machinery and tools. The word ratchet is also used informally to refer to a ratcheting socket wrench.

Theory if operation:-

A ratchet consists of a round gear or a linear rack with teeth, and a pivoting, spring-loaded finger called a pawl (or click, in clocks and watches[1][2]) that engages the teeth. The teeth are uniform but asymmetrical, with each tooth having a moderate slope on one edge and a much steeper slope on the other edge.

When the teeth are moving in the unrestricted (i.e. forward) direction, the pawl easily slides up and over the gently sloped edges of the teeth, with a spring forcing it (often with an audible 'click') into the depression between the teeth as it passes the tip of each tooth. When the teeth move in the opposite (backward) direction, however, the pawl will catch against the steeply sloped edge of the first tooth it encounters, thereby locking it against the tooth and preventing any further motion in that direction.

Uses:-
Cable ties, Capstans, Caulking guns, Clocks, Freewheel, Grease guns, Handcuffs, Jacks, Anti-rollback devices used in roller coasters, Looms, Slacklines, Tie-down straps, Turnstiles, Typewriters.

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