Pressing operation body and switch device

A pressing operation body, comprising:

• an inversion spring having a dome shape;
• and
• a rubber stem configured to bend in response to pressing and press the inversion spring, wherein
• the inversion spring includes
• a dome portion, and
• a plurality of leg portions that are extended outward from an outer peripheral edge of the dome portion, and
• the rubber stem includes
• a base portion configured to support a lower edge of the rubber stem, and
• the base portion includes
• a plurality of retaining portions configured to retain the plurality of leg portions of the inversion spring,
• wherein the leg portions each include
• a folded portion that is folded in a V shape after the leg portion is extended outward and downward from the outer peripheral edge of the dome portion, and
• wherein the leg portions are each extended outward and upward from the folded portion, and a tip of the leg portion is disposed in the retaining portion,
• wherein the retaining portions each include
• a support portion configured to support the tip of the leg portion disposed in the retaining portion from under the tip,
• wherein the support portion is a pair of projecting portions that are provided to project in the retaining portion, are elastically deformable, and face each other,
• wherein the pair of projecting portions have a gap between the pair of projecting portions, and
• wherein a tip of each of the projecting portions has a tilt surface that is tilted such that a width of the gap becomes gradually narrower in an upward direction.