| 摘要 |
<p>PCT No. PCT/DE90/00153 Sec. 371 Date Oct. 4, 1991 Sec. 102(e) Date Oct. 4, 1991 PCT Filed Mar. 3, 1990 PCT Pub. No. WO90/11703 PCT Pub. Date Oct. 18, 1990.The invention is directed to a toothbrush having a brush head 26 moved by an electromotive drive 12. It is suggested to arrange a mechanical torque limiting device 15 including a cam follower 13, 14 which is acted upon by a spring 16, 17 between a drive shaft of the electromotive drive 12 and the brush head 26. The user of the toothbrush and the electric motor 12 of the toothbrush are thereby protected against damage resulting from an improper manipulation of the toothbrush.</p> |
