Automatic analyzer

An automatic analyzer comprising:

• an operation surface including an incubator configured for receiving a container for a specimen to be analyzed;
• an incubator cover which is disposed to cover a first region of the operation surface, the first region including at least a portion of the incubator and requiring at least one of temperature control or light shielding;
• an openable lid which is disposed to openably cover an opening portion provided in the incubator cover, the opening portion providing access to the first region inside the incubator cover from an outside of the incubator cover, the openable lid configured to be rotatable between a first fully opened position and a first fully closed position with respect to the opening portion of the incubator cover, the openable lid configured to be movable to the first fully opened position in which a first end of the openable lid on a side distant from a center of rotation of the openable lid is positioned higher than a reference height of less than 90 degrees with respect to the first fully closed position;
• a safety cover which is configured to cover the operation surface including the incubator cover and the first region,
• wherein the safety cover is configured to be rotatable between a second fully opened position and a second fully closed position with respect to an end of the operation surface,
• wherein, in the second fully closed position, the safety cover is configured to cover the openable lid,
• wherein, when the openable lid is at the first fully opened position and the safety cover is at the second fully opened position, the openable lid is configured to be moved to the first fully closed position due at least to contact with the safety cover during movement of the safety cover from the second fully opened position to the second fully closed position;
• and
• an airtight member which is disposed at a boundary between the openable lid and the incubator cover at the first fully closed position, and which suppresses flow-in and flow-out of air between the first region inside the incubator cover and the outside of the incubator cover, and which also suppresses infiltration of light into the first region.