Operation support device

An operation support device that supports an input operation on a coordinate input device configured to detect change in electrostatic capacitance, the operation support device comprising:

• a main shaft support member placed on the coordinate input device;
• a support plate that protrudes to an outer side of the main shaft support member in a radial direction, includes a plurality of first magnets arranged on one surface of the support plate in a circumferential direction, and is fixed to the main shaft support member;
• an operation member that covers the support plate and the main shaft support member;
• a first rotating plate that is located on the coordinate input device side of the support plate and includes a plurality of second magnets generating attractive force to the first magnets at positions overlapping with the first magnets in an up-down direction, the second magnets being arranged on one surface of the first rotating plate in a circumferential direction;
• a second rotating plate that is arranged on an inner side of the first rotating plate in the radial direction and is located on the coordinate input device side of the support plate;
• a conductive first member projecting toward the coordinate input device from the first rotating plate;
• and
• a conductive second member projecting toward the coordinate input device from the second rotating plate, wherein
• when, in conjunction with the operation member, a state in which the support plate and the first rotating plate make contact with each other changes to a state in which the support plate and the first rotating plate are separated from each other, difference between a distance from an end portion of the first member to the coordinate input device and a distance from a detection end portion of the second member to the coordinate input device decreases.