Editing Buckling spring (section)

==IBM buckling spring==
{{Main|IBM buckling spring}}

While numerous keyboard switch designs from various companies were based around a buckling spring, the term is almost exclusively used to refer to the mechanism designed by [[IBM]] engineer Richard Hunter Harris in the 1970s, and later variations upon it. Harris's design used the movement of the spring before and after buckling to pivot a hammer, which in turn actuated a contact mechanism. There are a number of variations upon this basic design, however, the best known is a membrane-based variant designed for use in IBM's [[IBM Model M|Model M]] keyboards, which continues to be manufactured to the present day in keyboards made by [[Unicomp]].

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File:IBM membrane buckling spring -- recognition.jpg         | [[IBM membrane buckling spring]]
File:IBM capacitive buckling spring.jpg                      | [[IBM capacitive buckling spring]]
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