| 摘要 |
A key switch, comprising a key base, a key cap, and a first linking member and a second linking member are installed between the key base and the key cap, and a flexible member installed on the first linking member. The flexible member can be a spring, and is curved outwardly at its normal position. The second linking member has a pressing lever that is in contact with the flexible member. When the key switch is pressed down, the pressing lever compresses the flexible member, causing the flexible member to change its shape from an outward curve to a straight line, then further to an inward curve, producing a sense of two-step touch control. When the pressing force is released, the resilient force of the flexible member restores the key switch to its original position, thereby requiring the installation of any rubber components.
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