Device e.g. rattles, for producing repetitive or rhythmic sounds for e.g. children, has assembly ring joined and fixed together with half-resonance chamber, and another half-resonance chamber, where set of lips of chambers are in contact

摘要

The device has an assembly ring (1) that is joined and fixed together with a half-resonance chamber (3) i.e. cup, and another half-resonance chamber temporarily. The latter chamber along with the former half-resonance chamber is mounted in up-side down manner. A set of lips of the former half-resonance chamber and the latter half-resonance chamber are provided in contact with each other. The former half-resonance chamber and the latter half-resonance chamber are not joined together, and are provided in contact with a stop independent of the ring.