Material supply device and spout

A material supply device comprising:

• a bag assembly including a bag body that includes an accommodation space which accommodates a material, and a spout that includes a passage which delivers the material in the accommodation space to an outside, and is mountable in the bag body;
• and
• a squeeze unit that squeezes the bag body toward the spout to move the material in the accommodation space toward the spout,
• wherein the spout includes
• a bag body contact portion that is in contact with an inner surface of the bag body, and
• a squeeze contact portion that is provided adjacent to the bag body contact portion and is able to come into contact with the squeeze unit with the bag body interposed between the squeeze contact portion and the squeeze unit, and
• an outer peripheral edge of the bag body contact portion and an outer peripheral edge of the squeeze contact portion are connected to each other by a straight line or a curved line when viewed from a thickness direction of the bag body in a state where the spout is mounted in the bag body.

A spout that is mountable in a bag body which includes an accommodation space which accommodates a material and of which the material in the accommodation space is deliverable to an outside by a squeeze unit, the spout comprising:

• a bag body contact portion that is in contact with an inner surface of the bag body;
• and
• a squeeze contact portion that is adjacent to the bag body contact portion, is provided with a passage which delivers the material in the accommodation space to the outside, and is able to come into contact with the squeeze unit with the bag body interposed between the squeeze contact portion and the squeeze unit,
• wherein an outer peripheral edge of the bag body contact portion and an outer peripheral edge of the squeeze contact portion are connected to each other by a straight line or a curved line when viewed from a thickness direction of the bag body in a state where the spout is mounted in the bag body.