Sealing device

A sealing device, comprising:

• a pressure member having a pressure element for pressing a sealed portion of a sealed object;
• a heating member having a heating element for heating said sealed portion;
• a nozzle part arranged to be insertable into said sealed object from an opening in said sealed portion to suck out gas from inside of the sealed object or supply gas into the sealed object;
• a nozzle drive unit allowing said nozzle part to move between a waiting position and a stop position;
• a first linear solenoid for driving said pressure member such as to hold said sealed portion between said pressure member and said heating member;
• and
• a stopping mechanism for stopping a movement of a first movable part that forms the first linear solenoid when said first linear solenoid is driven at a predetermined midway point between a start point and an end point after said nozzle part has been moved from said waiting position to said stop position, and for releasing said first movable part from a stop to allow the first movable part to move again and reach said end point after said nozzle part has been returned from said stop position to said waiting position.