Disk apparatus

A disc device comprising:

• a tray on which a disc storage medium is mounted;
• and
• a casing being formed in a substantially box shape of which one surface defines an opening, the casing in which the tray is housed in a movable manner such that the tray is inserted and ejected through the opening, wherein
• the tray is provided with an electronic component being at least partially located at an end in an ejection direction of the tray and a ground member being made of an electrically-conductive material, the ground member being located in a vicinity of the electronic component without connection to the electronic component,
• the ground member is provided with an electronic component proximal portion being located in the vicinity of the electronic component and a ground extension portion that extends from one end of the electronic component proximal portion in a direction substantially perpendicular to the ejection direction,
• the tray is provided with a deformation restricting portion being located forward in the ejection direction relative to the ground extension portion, the deformation restricting portion that restricts deformation of the ground extension portion in the ejection direction, and
• the casing is provided with a casing-side ground contacting portion being made of an electrically-conductive material, the casing-side ground contacting portion being in contact with the ground extension portion when the tray is housed in the casing.