A haircutter handle has upper and lower housings. The upper housing and lower housing join to form a circumvoluted and/or spiraled exterior surface. The handle narrows and extends axially from a blade end to a handle or gripping end. The blade has an upper blade that oscillates over the lower blade to cut hair. The handle has a reduction taper that facilitates gripping and/or handling the handle. The taper also orients the motor and battery so that the center of gravity is positioned within the palm of the user's hand when gripping the handle. The blade end of the handle has a width and/or height that are greater than a width and/or height at the handle end. The reduction in height and/or width dimensions define a taper. In some embodiments, the width tapers more than the height tapers to facilitate gripping the handle about the center of gravity.

A linear actuator or motor for oscillating a blade is provided. The linear actuator replaces an eccentric drive and yoke, resulting in a linear powered drive to oscillate the blade linearly. This operation facilitates the formation of a smaller and/or lighter hair clipper. The linear actuator uses alternating current to oscillate a permanent against a biasing force produced by a set of springs. The permanent magnet is located opposite a stator with an electromagnetic coil that generates an electromagnetic force to oscillate the permanent magnet.

An apparatus is provided for releasably locking a stationary blade to a hair clipper, and includes a stationary blade with a blade opening, and a bracket configured for fixing the stationary blade to the hair clipper. Also, the bracket has a bracket opening. An actuator in the apparatus has a locking formation engageable in the openings and is operable between a first, locked position locking the stationary blade to the bracket, and a second, unlocked position releasing the stationary blade from the bracket.

An apparatus is provided for releasably locking a stationary blade to a hair clipper, and includes a stationary blade with a blade opening, and a bracket configured for fixing the stationary blade to the hair clipper. Also, the bracket has a bracket opening. An actuator in the apparatus has a locking formation engageable in the openings and is operable between a first, locked position locking the stationary blade to the bracket, and a second, unlocked position releasing the stationary blade from the bracket.

A variable frequency motor drive comprises a converter including a rectifier having an input for connection to an AC power source and converting the AC power to DC power. A DC bus is connected to the rectifier circuit. At least one bus capacitor is across the DC bus. An inverter receives DC power from the DC bus and converts the DC power to AC power to drive a motor. A controller is operatively connected to the converter. The controller comprises a speed control controlling the inverter responsive to a speed command to maintain a desired motor speed. A speed foldback control measures DC bus ripple voltage and regulates the speed command responsive to the measured DC bus ripple voltage.

The present application relates to a device for cutting hair. The device comprises a housing, a cutting unit arranged at one end of said housing and comprising a cutting element. The device comprises an electrode, and a voltage source connected to the electrode. The voltage source is configured to provide the electrode with an electrostatic charge so that the electrode is configured to attract charges naturally present in haircut by the cutting unit without actively charging the cut hair and to consequently draw and/or hold the cut hair away from the cutting element. The hair cutting device also having a sensor which is arranged to detect a condition relating to the use of the device. The voltage source is activated or deactivated depending on said detected condition.

The present application relates to a device for cutting hair. The device comprises a housing, a cutting unit arranged at one end of said housing and comprising a cutting element. The device comprises an electrode, and a voltage source connected to the electrode. The voltage source is configured to provide the electrode with an electrostatic charge so that the electrode is configured to attract charges naturally present in haircut by the cutting unit without actively charging the cut hair and to consequently draw and/or hold the cut hair away from the cutting element. The hair cutting device also having a sensor which is arranged to detect a condition relating to the use of the device. The voltage source is activated or deactivated depending on said detected condition.

The present disclosure relates to a releasable attachment comb (60) for a blade set (22) of a cutting head (20) of a hair cutting appliance (10), said attachment comb (60) comprising a supporting frame (62) comprising a first lateral grip bar (68), a second lateral grip bar (70), and at least one laterally extending supporting bar (64, 66) arranged between the first lateral grip bar (68) and the second lateral grip bar (70); a plurality of guide teeth (72) that define a skin contact front face (74); a plurality of snap-on mounting elements (78, 80); wherein the snap-on mounting elements (78, 80) are spaced away from the first lateral grip bar (68) and the second lateral grip bar (70); wherein at least one of the snap-on mounting elements (78, 80) is configured as a proximal snap-on mounting element (78) that is arranged on a first, proximal side (84); wherein at least one of the snap-on mounting elements (78, 80) is configured as a distal snap-on mounting element (80) that is arranged on a second, distal side (86); and wherein the at least one proximal snap-on mounting element (78) and the at least one distal snap-on mounting element (80) are arranged to mutually lock therebetween the blade set (22) to attach the attachment comb (60) to the cutting head (20). The present disclosure further relates to a cutting head (20) of a hair cutting appliance (10) that is fitted with a respective attachment comb (60).

An outer blade of an electric shaver has slits. Each of the slits includes: a first slit portion; a second slit portion positioned in a displaced manner from the first slit portion in a length direction of the outer blade; and a connecting slit portion connecting the first slit portion to the second slit portion. A displacement width in the length direction of the outer blade between the first slit portion and the second slit portion is set equal to or larger than at least one of widths of connecting portions of the first slit portion and the second slit portion connected to the connecting slit portion.

A haircutter handle has upper and lower housings. The upper housing and lower housing join to form a circumvoluted and/or spiraled exterior surface. The handle narrows and extends axially from a blade end to a handle or gripping end. The blade has an upper blade that oscillates over the lower blade to cut hair. The handle has a reduction taper that facilitates gripping and/or handling the handle. The taper also orients the motor and battery so that the center of gravity is positioned within the palm of the user's hand when gripping the handle. The blade end of the handle has a width and/or height that are greater than a width and/or height at the handle end. The reduction in height and/or width dimensions define a taper. In some embodiments, the width tapers more than the height tapers to facilitate gripping the handle about the center of gravity.