Buckling spring

Buckling spring

A buckling spring is a type of keyswitch mechanism, popularized by IBM's keyboards for the PC, PC/AT, 5250/3270 terminals, and other keyboards, the most popular of these being the Model M. It is described in US patent|4118611 (now expired).

The name refers to the fact that the coil spring tensioning the keycap "buckles", i.e. kinks or collapses, at a certain point in its downward traverse, providing auditory and tactile feedback to the keyboard operator.

See also

* Keyboard technology
* collapse action

External links

* [http://www.clickykeyboard.com/ Buckling spring fan site and online shop]
* [http://www.pckeyboard.com/ Current manufacturer of buckling spring keyboards] holding the original Patent
* [http://web.archive.org/web/20041011183846/http://www.ibmlink.ibm.com/HTML/SPEC/g2213946.html Archive of IBM keyboard product page mentioning buckling spring keyboards]


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