Switch device

A switch device that is switchable in accordance with a position of an actuation unit, the switch device comprising:

• the actuation unit;
• a movable unit;
• a base;
• a torsion coil spring that acts between the actuation unit and the movable unit;
• an operation unit;
• and
• an acceleration spring that acts between the operation unit and the actuation unit,
• wherein
• the movable unit is movable with respect to the base supporting the movable unit,
• the actuation unit is movable between a first actuation position and a second actuation position,
• when the actuation unit is at the first actuation position, the torsion coil spring applies a force to the actuation unit in a direction that is not parallel to a direction in which the torsion coil spring applies a force to the actuation unit when the actuation unit is at the second actuation position,
• the operation unit moves under an external force from a first operation position to a second operation position,
• the actuation unit moves between the first actuation position and the second actuation position in accordance with movement of the operation unit between the first operation position and the second operation position, and
• the acceleration spring moves the actuation unit with elastic energy accumulated under an external force applied to the operation unit.