Regenerative refrigerator and partitioning member

A regenerative refrigerator, comprising:

• a cylinder configured to cause a refrigerant gas to expand;
• a regenerator containing a regenerator material and configured to accumulate, in the regenerator material, cold heat generated in the cylinder with expansion of the refrigerant gas;
• and
• a partitioning member provided in the regenerator and partitioning off the regenerator material,
• the partitioning member including
• a ring member having a center opening, the ring member having an outer circumferential surface fitting with an inner circumferential surface of the regenerator;
• and
• a layered body provided on the ring member to close the center opening thereof, the layered body including a filter member and a reinforcing member stacked in multiple layers, the filter member being configured to prevent passage of the regenerator material and to allow passage of the refrigerant gas, the reinforcing member being configured to reinforce the filter member,
• the layered body having a peripheral edge portion thereof held tight from first and second opposite sides of the layered body in a stacking direction thereof by the ring member.