First introduced in 1973, the BIC disposable lighter set a new standard for a low-cost, easy to use to lighter. Since then, hundreds of millions of lighters have been produced. They are safe, reliable, and cost effective, but are also subject to mis-use, in ways that can be difficult to imagine.
The design challenge: develop a mechanism that would prevent children (especially curious young boys) from engaging the flame - no matter what - while maintaining the familiar lighting procedure for adults.
The solution: a simple, robust mechanism that was easy to use, and suitable for all existing production tools. These sketches represent some of the thinking behind the original safety mechanism.
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