Displacement amplifying mechanism and liquid ejecting apparatus using the same

A liquid ejecting apparatus comprising:

• a pressure chamber that communicates with a nozzle and contains an ejection liquid ejected from the nozzle;
• a flow path that is connected to the pressure chamber and through which the ejection liquid circulates;
• an actuator that changes a pressure of the pressure chamber by changing a volume of the pressure chamber;
• and
• a displacement amplifying mechanism that is disposed between the pressure chamber and the actuator, enlarges an amount of displacement of the actuator, and transmits the enlarged amount of displacement to the pressure chamber,
• wherein the displacement amplifying mechanism includes
• an accommodation chamber in which an elastic material is accommodated, and
• a deformation portion that forms a wall surface of the accommodation chamber and is displaced in a first direction which is a direction away from the accommodation chamber in a state where an elastic force acting in a second direction approaching the accommodation chamber is generated by a pressure of the elastic material when the actuator applies a pressure to the elastic material, and
• an area of the deformation portion in contact with the elastic material is smaller than an area of a region of the elastic material subjected to pressure from the actuator.