Electric toothbrush

Details Electric toothbrush Electric toothbrush

A - Human Necessities

61

C

A61C 17/34 (2006.01) A61C 17/26 (2006.01)

Patent

CA 2106313

2106313 9310721 PCTABS00022 An electric toothbrush comprises a handle part (1) and a push-on brush (4). From one end of the handle part (1) there projects the end of a hollow shaft (3) in which a toothbrush arbor (9) is coaxially arranged, the push-on brush (4) being adapted to be pushed on to the toothbrush arbor (9). The push-on brush (4) has a rotatable tuft of bristles which may be driven by a longitudinally reciprocating connecting rod. A gear (18) in the handle part (1) has two cams (23, 27) which are mutually phase shifted by 180·. The first cam (23) displaces the hollow shaft (3) and the second cam displaces the toothbrush arbor (9) in the opposite direction.

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