Keycap assembly with an interactive spring mechanism

A keyboard comprising:

• a base;
• a plurality of key assemblies, wherein each key assembly of the plurality of key assemblies comprises:
• a keycap configured to move between an unpressed position and a pressed position relative to the base, wherein the unpressed and pressed positions are separated vertically and laterally;
• a first deflectable spring comprising a first fixed portion and a first contact portion, the first contact portion configured to contact a first spring guiding profile located proximate to a first edge of the keycap, wherein the first fixed portion and the first spring guiding profile are fixed to different keyboard elements selected from group consisting of the base and the keycap;
• and
• a second deflectable spring comprising a second fixed portion and a second contact portion, the second contact portion configured to contact a second spring guiding profile located proximate to a second edge of the keycap opposite the first edge of the keycap, wherein the second deflectable spring is fixed to the keyboard element to which the first deflectable spring is affixed and the second spring guiding profile is fixed to the keyboard element to which the first spring guiding profile is affixed,
• wherein, as the keycap moves from the unpressed position to the pressed position, the first and second contact portions physically interact with first and second different sections of the first and second spring guiding profiles, causing first and second different deflections of the first and second deflectable springs and producing first and second reaction forces, respectively, wherein the first and second reaction forces resist keycap motion toward the pressed position and bias the keycap toward the unpressed position;
• and
• a key sensor configured to detect pressed states of keycaps of the plurality of key assemblies.