Automated guided vehicle

An automated guided vehicle which moves an object having an annular connected part, the automated guided vehicle comprising:

• a vehicle body:
• a drive wheel attached to the vehicle body:
• and
• a connection mechanism connected to the object via the connected part, wherein
• the connection mechanism comprises:
• a base having a hole recessed toward one side in a first direction;
• a connecting part extending in the first direction and having at least a portion thereof disposed in the hole;
• a drive unit moving the connecting part in the first direction;
• a support part protruding from a position different from the hole on the base toward another side in the first direction;
• and
• a movable part attached to be movable in a predetermined direction with respect to the support part, and is connected to the object when the connecting part is passed through an inside of the connected part, wherein
• the drive unit is able to switch a state of the connecting part between a first state in which an end portion of the connecting part protrudes from the hole toward the another side in the first direction and a second state in which the end portion of the connecting part is positioned on one side in the first direction with respect to that in the first state,
• the movable part is movable between a first position and a second position different from the first position,
• when the connecting part is in the first state and the movable part is positioned at the first position, the end portion of the connecting part comes into contact with a surface on one side in the first direction of the movable part or penetrates the movable part in the first direction to protrude toward the another side in the first direction with respect to the surface on one side in the first direction of the movable part,
• when the connecting part is in the first state and the movable part is positioned at the second position, the movable part is positioned at a position away from the connecting part in the predetermined direction,
• when the connecting part is in the second state, the connecting part and the movable part are disposed away from each other in the first direction, and
• a force is applied to the movable part in a direction that causes a position of the movable part to be maintained at the first position.