Electronic pen

An electronic pen comprising:

• an electronic pen main body unit having a pen shape, and having a pen tip that, in operation, performs a position indication, the pen tip being formed in an end portion on a first end side of the electronic pen main body unit in an axial direction of the electronic pen main body unit;
• a weight member;
• an attachment portion that detachably attaches to the weight member, the attachment portion being formed in an end portion on a second end side of the electronic pen main body unit in the axial direction of the electronic pen main body unit;
• and
• a cap case unit configured to be detachably engaged with the second end side of the electronic pen main body unit in the axial direction of the electronic pen main body unit such that the cap case unit covers the attachment portion in the end portion on the second end side of the electronic pen main body unit in the axial direction of the electronic pen main body unit,
• wherein the cap case unit has a space portion configured to house the weight member attached to the attachment portion when the cap case unit is engaged with the second end side in the axial direction of the electronic pen main body unit,
• wherein the attachment portion is provided with an elastic member configured to bias the weight member attached to the attachment portion to the second end side of the electronic pen main body unit in the axial direction of the electronic pen main body unit, and the weight member is configured not to move in the axial direction when the cap case unit is engaged with the second end side of the electronic pen main body unit in the axial direction of the electronic pen main body unit, and
• wherein the elastic member is formed by a coil spring, and a first end of the coil spring, the first end being on a pen tip side in a direction in which the coil spring elastically extends or contracts, is fixed to the attachment portion of the electronic pen main body unit.