Lengthy article take-up apparatus and lengthy article printer

A lengthy article printer comprising:

• a lengthy article take-up apparatus;
• and
• a printing portion configured to apply a print on a lengthy article before taking-up,
• the lengthy article take-up apparatus comprising:
• a housing constituting an outer shell of the lengthy article take-up apparatus;
• a winding core member detachably attached to said housing and configured to take up said lengthy article;
• a bearing portion disposed on said housing;
• and
• a driving gear disposed on said housing, wherein
• said winding core member comprises:
• a shaft member configured to be detachably fitted to said bearing portion;
• a cylindrical winding body disposed rotatably on an outer periphery of said shaft member and configured to wind said lengthy article on an outer peripheral side;
• a driven gear fixed to said cylindrical winding body and configured to be meshed with said driving gear when said winding core member is attached to said housing;
• and
• a lock member configured to fix said shaft member to said bearing portion when said winding core member is attached to said housing,
• said lock member is connected to said shaft member and configured to rotate said shaft member in a state fitted with said bearing portion around an axis of the lock member,
• said shaft member comprises, at least on one end, a first engagement portion configured to be engaged with said bearing portion in a vicinity of said axis by a rotation operation by said lock member,
• said shaft member comprises said first engagement portion on an end portion on one side, and an end portion on another side connected to said lock member, and
• said lock member comprises a second engagement portion configured to be engaged with said bearing portion in the vicinity of said axis by said rotation operation,
• said housing comprises a projecting portion including an opening portion, and
• said lock member comprises a hook portion configured to be locked by said projecting portion and overlap said opening portion of said projecting portion in an axial direction of the shaft member when said second engagement portion is engaged with said bearing portion by said rotation operation, and
• said hook portion is disposed at a position not overlapping with said opening portion of said projecting portion in the axial direction at attaching of said winding core member to said housing.