| 摘要 |
PROBLEM TO BE SOLVED: To provide a toothbrush having high strength of a bed part even when the bed part is thinned, easily measuring a dimension of the bed part as designed, and having high production suitability by a flat wire type planting method.SOLUTION: The toothbrush includes: a head part 10 formed with a plurality of bristle implanting holes 12a on a bristle implanting surface; a neck part 20 extended from the proximal end side of the head part 10; and a handle part extended from the proximal end side of the neck part 20. A bristle tuft of bristles is implanted into the bristle implanting holes 12a and a plurality of reinforcing projecting strips 40 extending from the proximal end to the distal end are provided in a location not to overlap the bristle implanting holes 12a on a rear surface 13 of the bed part 10. |
