| 摘要 |
PURPOSE:To prevent danger from occurring by interposing a cover piece formed in spherical shape corresponding to the fluctuating locus of a massage ball in a gap formed between a top plate and a fluctuating massage ball so as to circulate the outer peripheral plane of the cover piece with part of the massage ball, and supporting a diaphragm on the top plate via an elastic supporting leg. CONSTITUTION:An oblique shaft part 7b is inserted to a tapered part 12b, and the cover piece 12c formed so as to be opened divergently in an upper direction corresponding to the fluctuating locus of the oblique shaft part 7b and bent and formed in the spherical shape from its upper edge is extended directing downward, and its lower terminal part is abutted with the top plate. The lower terminal part of the massage ball 9 covers the tapered part 12b via a hollow part 9' opening downward at the bottom part of the part. In other words, the massage ball 9 can fluctuate as circulating the outer peripheral part of the cover piece 12c. Meanwhile, an oscillation motor 17 is excited via an oscillation mechanism incorporated in the motor 17 by oscillating the motor 17, and also, excited oscillation is transmitted to the diaphragm 16 via a flange 18 and an oscillation member 19. |
