Electronic pen and core body for electronic pen

A core body for an electronic pen, the electronic pen including a cylindrical housing including an opening on one end of the housing in an axial direction of the housing, the core body being configured to be attached inside of the housing such that an end of the core body protrudes from the opening on the one end of the housing,

• wherein:
• the core body includes a core rod that is conductive,
• the core rod includes:
• a front portion configured to protrude from the opening on the one end of the housing,
• a back portion, and
• an intermediate portion between the front portion and the back portion,
• the intermediate portion has a tapered shape configured to continuously narrow from an end of the intermediate portion that protrudes from the opening on the one end of the housing toward an end of the intermediate portion that is disposed inside of the housing,
• the core rod is configured to receive a signal front a signal generation circuit provided inside of the housing;
• and
• the core body includes a protection member that covers a side surface of the intermediate portion of the core rod.