| 主权项 |
1. The A container opening/closing device for opening and closing a lid of a container, the container comprising a container body and the lid, the container body including an opening through which a workpiece is loaded and unloaded, the lid being detachably attached to the opening and closing the opening, said device comprising:
an opening/closing mechanism which includes a holding portion for holding said lid, said opening/closing mechanism opening and closing the opening by moving said holding portion between a closing position at which said lid closes the opening, and an open position at which said lid is separated from the opening; and a pressing mechanism which presses a peripheral edge of said holding portion toward said container body when said opening/closing mechanism moves said lid from the open position to the closing position, wherein said pressing mechanism comprises: a driving source which generates a driving force; an arm member which is connected to said driving source and is movable by the driving force toward a surface of said holding portion, which surface is opposite to a lid holding side of said holding portion; and a pressing portion which is supported by said arm member at one end of said arm member, said pressing portion contacts with the surface of said holding portion and presses the surface toward said container body by a movement of said arm member, wherein said arm member is pivotable on a horizontal plane. |
