| 摘要 |
An ignition unit, which is incorporated with a disposable childproof lighter, includes a striker wheel for urging against a flint, two driven gear elements coaxially mounted at two sides of the striker wheel, and two driving caps mounted between the driven gear elements and the striker wheel. Each of the driving caps has an outer circumferential slipping surface and a driving cavity for receiving a gear wheel of each driven gear element wherein the driving caps are arranged to engage with the gear wheels to drive the driven gear elements to rotate respectively, so as to drive the striker wheel to rotate for striking against a flint to produce sparks.
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