| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary toothbrush which uses two components, that is to say, a handle part and a rotary support shaft except for a brush material, and which makes a mold cost, a material processing cost and a material cost low.SOLUTION: A semicircular recess 16 is also provided in a guide plate 9, inside a pair of right and left bearing plates 3 having a handle part provided with a hinge part 11 and a fitting part 12. Slit parts are provided at right and left tips of a polygonal rotary support shaft 5 for being fitted with a brush material 7, respectively. The rotary support shaft 5 fitted with the brush material 7 is attached to the fitting part 12 of the bearing plate 3. |
