Cushioning rubber, reaction force adjusting method thereof, and pedestal

A cushioning rubber comprising:

• a flat plate portion;
• and
• a plurality of protruding portions that protrude from the flat plate portion,
• wherein a periphery of each of the plurality of protruding portions is surrounded by a portion of the flat plate portion, and an inside of each of the plurality of protruding portions is configured to be a cavity, and
• an exhaust passage is provided to allow air inside the cavity of each of the plurality of protruding portions to be exhausted to an outside,
• wherein the exhaust passage is configured of a plurality of grooves which are formed on a surface of the flat plate portion on a side opposite to a side on which the plurality of protruding portions protrude, so as to extend from an inside of the cavity to a side surface of the flat plate portion.

A pedestal comprising:

• a base plate;
• and
• at least one cushioning rubber disposed in a state of being positioned on the base plate,
• the cushioning rubber including a flat plate portion and a plurality of protruding portions which protrude from the flat plate portion,
• wherein a periphery of each of the plurality of protruding portions is surrounded by a portion of the flat plate portion, an inside of each of the plurality of protruding portions is configured to be a cavity, and
• at least one of the base plate and the cushioning rubber is provided with an exhaust passage which allows air inside the cavity of each of the plurality of protruding portions to be exhausted to an outside.