Device for shaving hair having a cutting member with a periodical motion

摘要

The invention relates to a device ( 1 ) for shaving hair ( 93 ) and to a shaving head ( 9 ) used therein. The shaving head ( 9 ) has at least one cutting member ( 17, 19 ) having a cutting edge ( 23 ) and a cutting direction (X), and the device has an actuator ( 29 ) for effecting a periodical motion of said cutting member relative to a base portion ( 3 ) of the device. According to the invention said periodical motion is effected in an imaginary plane which extends transversely to the cutting edge ( 23 ) and which has a first motion portion ( 89 ) and a second motion portion ( 91 ) following the first motion portion. The first motion portion is mainly directed in the cutting direction (X), and the second motion portion is mainly directed opposite to the cutting direction and is closer to the skin ( 93 ) than the first motion portion. Said periodical motion results in a reduced risk of skin irritations and skin injuries and provides a smooth shaving result. In a particular embodiment the periodical motion is an elliptical motion with a major axis ( 85 ) extending mainly in the cutting direction (X) and with a minor axis ( 87 ) extending mainly in a Z-direction which is perpendicular to the cutting direction and the cutting edge ( 23 ).