Input device

An input device comprising:

• a first electrode;
• a support body that supports the first electrode;
• a fixed body fixed above the support body;
• a second electrode;
• a movable body that holds the second electrode in a state in which the second electrode faces the first electrode with a predetermined space being provided therebetween, the movable body causing the second electrode to approach and recede from the first electrode by moving by rotation or translation;
• an operation body held by the fixed body movably relative to the fixed body in a state in which the operation body is engaged with the movable body, the operation body causing, by being operated by a user, the movable body to move by rotation or translation;
• and
• a biasing part that is disposed between the movable body and the fixed body, and applies, to the movable body, a biasing force toward the support body,
• wherein the movable body includes a protruding and recessed structure in which a plurality of recesses and a plurality of protrusions are continuously and alternately arranged in a movement direction in which the movable body moves, the plurality of recesses being recessed in a direction orthogonal to the movement direction, the plurality of protrusions protruding in the direction orthogonal to the movement direction, and
• the biasing part includes:
• an elastic body for applying the biasing force;
• a pressing body that is provided between the protruding and recessed structure and the elastic body in a direction perpendicular to an upper surface of the support body, and elastically deforms the elastic body in conjunction with movement of the movable body;
• and
• a holding body that is fixed on the fixed body, and holds the elastic body and the pressing body, the holding body allowing the elastic body to deform and the pressing body to move.