Keyboard device

A keyboard device, comprising:

• a substrate comprising a top surface and a bottom surface opposite to the top surface, wherein the top surface comprises an assembly area, the assembly area has a first side and a second side opposite to the first side, and a pivoting base is protruding on the assembly area;
• the pivoting base is adjacent to the first side and comprises a standing portion and an extension portion, and the extension portion is extending from a top end of the standing portion and has a bottom edge;
• a key having a third side and a fourth side opposite to the third side, wherein the key is liftably disposed over the assembly area, the third side corresponds to the first side, and the fourth side corresponds to the second side;
• a pivoting hook is extending from a bottom of the third side toward the assembly area, an end portion of the pivoting hook comprises a pivoting portion, and the pivoting portion has a top edge;
• a first elastic member disposed on the assembly area and adjacent to the first side, wherein the first elastic member is elastically abutted against the bottom of the third side of the key, so that the top edge of the pivoting portion is abutted against and pivoted to the bottom edge of the extension portion, and a liftable distance is maintained between the extension portion and the bottom of the third side of the key;
• and
• a second elastic member disposed on the assembly area and between the first elastic member and the second side, wherein the second elastic member is elastically abutted against a bottom of the key.