Controller and key structure

A controller comprising:

• a substrate;
• a key top having a swing center and configured to swing about the swing center when pressed by a user, the key top having a bottom surface that is parallel to the substrate in a non-operated state;
• a contact positioned on the substrate;
• and
• an elastic member positioned between the key top and the substrate in a first direction,
• the elastic member including:
• a base positioned on the substrate,
• a pressed portion configured to be pressed by the bottom surface of the key top,
• a skirt portion that connects the pressed portion to the base such that the pressed portion is spaced from the base, the skirt portion being elastically deformable when the pressed portion is pressed by the bottom surface of the key top, and
• a pressing member positioned in a predetermined region on a side of the pressed portion that faces the substrate, the pressing member being surrounded by the skirt portion, and at least a first surface of the pressing member that faces the substrate being conductive, wherein
• the first surface is positioned to contact the contact when the pressing member moves towards the substrate and the skirt portion is elastically deformed,
• a second direction is perpendicular to the first direction,
• in the non-operated state of the key top, a distance in the second direction between a side of the predetermined region that is proximal to the swing center and a side of the first surface that is proximal to the swing center is longer than a distance between a side of the predetermined region that is distal from the swing center and a side of the first surface that is distal from the swing center, and
• in the non-operated state of the key top, the contact is located closer, in the second direction, to the swing center than the first surface.