Patent ID: 7586030

Claim:
A keyboard apparatus comprising: a key unit that comprises one or more key bodies, a key supporting part for supporting each key body, and a connecting part for connecting the key body to the key supporting part pivotably in a key-stroking direction of the key body; and a key frame that comprises an upper surface, and a key mounting part disposed on the upper surface for locking the key supporting part of the key unit; wherein the key supporting part of the key unit has a first engagement section having a hook-like structure or a press-fitting structure; the key mounting part of the key frame has a second engagement section which engages with the first engagement section when the key unit is mounted to the key frame, the second engagement section having a through-hole or a concave for engagement with the hook-like structure or the press-fitting structure of the first engagement section; and the first engagement section and the second engagement section are located above the key mounting part of the key frame.