| 摘要 |
A powered toothbrush having a handle, a head mounted to said handle, a primary tuft block mounted in said head, said primary tuft block being a round tuft block having a generally circular cross section and having exposed bristles extending outwardly from said head, a secondary tuft block mounted in said head at a location displaced from said primary tuft block, said secondary tuft block comprising at least one plate disposed adjacent to said primary tuft block, said secondary tuft block having exposed bristles extending outwardly from said head, a drive assembly in said handle, said drive assembly including a drive connection to said primary tuft block in the form of direct drive from a shaft axially extending from a motor to said primary tuft block, said primary tuft block being rotationally mounted on said shaft in said head, to oscillate said primary tuft block back and forth, and a drive transmitting connection connecting said primary tuft block to said secondary tuft block for moving said secondary tuft block back and forth in an oscillating manner in response to the movement of said primary tuft block while said primary tuft block is being oscillated, said drive transmitting connection causing said at least one plate to reciprocate linearly in a direction parallel to said handle. |
