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Pawl and ratchet — Eduqas GCSE Design and Technology Definition

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Design and Technology
Key terms
Pawl and ratchet

GCSE Design and Technology · key term

Pawl and ratchet

Definition

A mechanism in which a pawl engages a toothed ratchet wheel to allow rotation in one direction while preventing reverse rotation.

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How each exam board covers it

Eduqas GCSE Design and Technology · C600

Component 1

A pawl and ratchet controls the direction of rotation. The ratchet is a wheel with shaped teeth; the pawl is a pivoted, spring-loaded catch that engages them.
Revise: Levers and Motion Mechanisms

Eduqas Design and Technology past papers

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