Ice maker and refrigerator

Abstract

Provided is a refrigerator including a cabinet having a refrigerating compartment and a freezing compartment defined therein, and an ice maker disposed in the freezing compartment, wherein the ice maker includes an upper tray made of an elastic material, and having a plurality of hemispherical upper chambers defined therein, a lower tray made of an elastic material, wherein the lower tray comes into contact with the upper tray by pivoting to define a plurality of spherical ice chambers therebetween, a driver for pivoting the lower tray to open and close the upper tray and the lower tray, and each rib formed along a circumference of each upper chamber or each lower chamber in contact with each other.

What is claimed is: 
     
         1 . A refrigerator comprising:
 a cabinet; and   an ice maker disposed in the cabinet and configured to make spherical ice, the ice maker comprising:
 an upper tray made of an elastic material and defining a plurality of hemispherical upper chambers, 
 a lower tray made of an elastic material and defining a plurality of hemispherical lower chambers, wherein the lower tray is configured to pivot toward and make contact with the upper tray to thereby join together the upper and lower hemispherical chambers and form a plurality of spherical ice chambers, 
 a driver configured to pivot the lower tray to and from the upper tray to close and open the spherical ice chambers, respectively, and 
 a plurality of ribs that are circumferentially provided at portions of the upper or lower chambers that are configured to make contact with each other.