Ice maker, refrigerator having the same, and ice making method thereof

An appliance, comprising:

• a body including an ice making chamber;
• and
• an ice maker located in the ice making chamber, the ice maker including:
• a tray configured to produce an ice mass;
• an ice elevating member linearly movable within the tray and configured to elevate the ice mass located within the tray;
• and
• a driving unit coupled to the ice elevating member and configured to linearly move the ice elevating member,
• wherein the body is a refrigerator body having a refrigerating chamber and a freezing chamber, and wherein the ice making chamber is located in the refrigerating chamber.

An ice maker, comprising:

• a tray configured to produce an ice mass;
• an ice elevating member linearly movable within the tray and configured to elevate the ice mass located within the tray;
• a driving unit coupled to the ice elevating member and configured to linearly move the ice elevating member;
• and
• an ice separating unit configured to separate the upper portion of the ice mass from a remaining portion of the ice mass,
• wherein the ice separating unit includes a cutter for cutting the ice pushed up by the ice elevating member,
• wherein the cutter is operated by the driving unit, and
• wherein the cutter comprises:
• a pair of support members spaced-apart in a horizontal direction, one of the support members being coupled to a rotation shaft of the driving unit;
• and
• a blade having a spiral shape, the blade having opposite ends thereof coupled to the pair of support members.