Editing Cherry MX Lock (section)

==Operation==
Cherry approached the locking mechanism differently to most companies. The MX Lock switch has a static axle on the side of the stem, onto which a small wheel is placed. The wheel travels within a shaft inside the upper shell; a lug within this shaft rotates the wheel as it passes, and when the wheel is rotated a certain amount, it catches on this lug and holds the stem down. The wheel has three arms, and each arm ends in a small notch, which is there to engage with the lug and hold the stem in position.

This appears to be the same design as used in [[Cherry M5/M6/M7]], as seen under [[Cherry M6 alternate action]]; the patent for this mechanism was filed in 1972.