| 摘要 |
A key switch able to provide a clicking sensation via a simplified structure is disclosed. The key switch includes a key to be pressed down, a linkage assembly having first and second linking members with arms connected to outer ends thereof, and a bow-shaped elastic object connected between the arms of the first and second linking members, which is lowered by pressure of the key and is raised together with the key by release of a pressure acting on the key, the first and second linking members including a coupling recess and a coupling protrusion at inner end thereof and hinge protrusions at side surfaces thereof, the coupling recess and protrusion being engaged with each other to constitute a linkage rotating shaft, a frame including hinge hooks engaged with the hinge protrusions of the first and second linking members, and an FPC placed on the frame to recognize a key-input operation by contact with the linkage assembly. As the key is pressed down, the arms of the first and second linking members are rotated downward while linkage rotating shaft is raised, and the elastic object is gradually flattened and then bent into an upwardly convex bow shape, thereby providing a clicking sensation to a user and a restoring force to the linkage assembly.
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