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Ratchet Gear And Pawl
Ratchet may refer to: Devices * Ratchet (device), a mechanical device that allows movement in only one direction * Ratchet effect in sociology and economics * Ratchet, metonymic name for a socket wrench incorporating a ratcheting device * Ratchet (instrument), a musical instrument and a warning device Film and television * Ratchet (''Robots''), a character in the film ''Robots'' * Ratchet, a character in the ''Widget the World Watcher'' television series * Ratchet, a character in the ''Red Lantern Corps'' DC Comics series * Ratchet (''Transformers''), a character * ''Ratchet'', a 1986 thriller film by John Johnson Video games * Ratchet (''Ratchet & Clank''), a video game character * '' Ratchet: Deadlocked'', a video game Music * “Ratchet (song)” Millionaires (group) featuring Kreayshawn, 2012 * "Ratchet" (Bloc Party song), 2013 * ''Ratchet'' (Shamir album), 2015 * Ratchet, another name for the RnBass genre Other * Ratchet option, a financial derivative als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Ratchet (device)
A ratchet (occasionally spelled rachet) 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. __TOC__ Theory of 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) that engages the teeth. The teeth are uniform but are usually 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 oppo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
