Tone hole pad for a wind instrument

Abstract

A tone hole pad to close a tone hole of a musical wind instrument is mounted in a cup having a bottom portion and a wall portion with a lip which curves inward toward the center thereof to prevent a pad surface from floating. A circular metallic base has a diameter substantially the same as the inside diameter of the wall portion of the cup and is brazed to the bottom surface thereof. The base has a stem portion integral therewith within which a female screw is formed. A ring-shaped concave portion is formed on the peripheral portion of the upper surface of the base, having an inside diameter smaller than the tone hole. A plurality of holes are formed at regular intervals between the stem portion and the ring-shaped concave portion. A peripheral corner portion of the rear surface of the base is beveled to conform to the curved portion of the inside bottom portion of the metal cup. A pad assembly including a felt body, an elastic resin plate and a mount paper is mounted on the metallic base and fixed by a pad washer and a bolt.

Dependencies are inferred from the claim text.