CAVE GENERATING HARPLIKE SOUND WITH WATER DROP AND ITS ASSEMBLY SET

摘要

PROBLEM TO BE SOLVED: To provide the cave which can generate a pleasant water dripping sound intermittently at proper intervals for a long time without being affected by the amount of fed water, etc., and its assembly set. ;SOLUTION: This cave has a bottle 10 which is arranged upside down with its bottom part 11 up and a water reservoir part 2 which is arranged at the lower part in the bottle 10, and generates a harplike water dripping sound by dripping a water-drop 9 on water 90 in the water reservoir part 2 from a bottom hole 12 bored in the bottom part 11. For the bottom hole 12 of the bottom part 11, a water-drop forming tool 4 is provided which drips the water- drop 9 after making it large, and an air hole 18 through which the water dripping sound is radiated outward is bored in the bottle 10. The water-drop forming tool 4 consists of a cylindrical main body 41, a porous part 42 which is provided inside it, and a water-drop size increase part 43 provided in the opening part of the cylindrical main body 41 below the porous part 42.;COPYRIGHT: (C)1998,JPO