Lid opening-and-closing device

A lid opening-and-closing device comprising:

• a casing;
• a first lid opening-and-closing mechanism that opens and closes an upper lid of a first container disposed in the casing;
• and
• a second lid opening-and-closing mechanism that opens and closes an upper lid of a second container disposed in parallel below the first container in the casing, wherein
• the first lid opening-and-closing mechanism includes:
• a first holder that holds the upper lid of the first container;
• a first protrusion provided to protrude from the first holder toward one side direction with respect to the first holder and extends to outside of the casing;
• and a first raising/lowering driver that raises and lowers the first holder in a cantilevered manner with the first protrusion interposed therebetween,
• the second lid opening-and-closing mechanism includes:
• a second holder that holds the upper lid of the second container;
• a second protrusion provided to protrude from the second holder toward said one side direction and extends to the outside of the casing;
• and a second raising/lowering driver that raises and lowers the second holder in a cantilevered manner with the second protrusion interposed therebetween, and
• the first raising/lowering driver and the second raising/lowering driver are located outside the casing and in said one side direction with respect to the casing.