A hair cutting appliance is presented including a body with a power switch and a power source. A drive system within the body is in selective electrical communication with the power source. A cutting unit is coupled to the drive system. An optical sensor is positioned to sense a pre-defined skin-hair edge in an area in front of the cutting unit. A switching element is in electrical communication with a control circuit and switchable between a conducting state to electrically connect the drive system and the power source and a non-conducting state to electrically isolate the drive system from the power source. The switching element is switched to the non-conducting state when a first sensed condition of the optical sensor exceeds a first pre-programed threshold. A power transform module is also provided that includes the optical sensor and is configured to be mounted to the body.

According to a first aspect there is disclosed a housing assembly comprising: a housing body defining an interior space configured to receive a switch, and an aperture configured to provide access to the interior space from an exterior of the housing body; a soft sealing element disposed in the aperture and bonded to the housing body so as to seal the aperture between the interior space and the exterior of the housing body, the soft sealing element configured to be elastically deformable to actuate the switch when disposed in the housing body; and a hard island fixed to the soft sealing element, wherein the hard island is separate from, and moveable relative to, the housing body into the interior space so as to elastically deform the soft sealing element to actuate the switch when disposed in the housing body.

An adjustable bladeset for a hair clipper with a clipper housing includes a stationary blade having a stationary toothed end with a plurality of stationary teeth, an opposite stationary base end and an upper surface, and a moving blade having a moving toothed end with a plurality of moving teeth, the moving blade configured for reciprocal transverse movement relative to the stationary blade on the upper surface. The stationary blade is linearly displaceable relative to the moving blade by action of an adjustment lever on the clipper housing. A blade guide is on the upper surface at the stationary base end, and has at least one toothed strip. The adjustment lever is connected to a blade actuator shaft having at least one toothed cog configured to engage the toothed strip so that rotation of the actuator shaft causes the linear displacement of the stationary blade relative to the moving blade.

A comb adjustment assembly for a beard trimmer includes a guide collar, a first adjusting connector, and an adjustor handle threadably coupled to the first adjusting connector. The first adjusting connector includes an extension arm, a connector coupled to the extension arm and configured to connect with an external structure. A guide collar aperture is formed in the guide collar, and the extension arm penetrates through the guide collar aperture. When the guide collar is in a fixed state, the adjustor handle is rotated, and the extension arm moves through the guide collar aperture. After the comb adjustment assembly is coupled to the beard trimmer in the present disclosure, the height of the comb unit may be regulated, and a user can adjust the hair cutting length by accurately regulating the extending length of the comb unit.

In a hair-cutting unit (4) for a rotary electric shaver, which is of the type comprising an external cutting member (10), an internal cutting member and a supporting member (30), an exposure distance (de) over which a skin-contacting surface (12) of a shaving track of the external cutting member (10) protrudes relative to an upper surface (31) of the supporting member (30) is adjustable. To this end, a conversion mechanism (40) having a first plurality of mutually spaced ramp elements (41) and a second plurality of mutually spaced flexible elements (42) for interaction with the ramp elements (41) is provided. Depending on the rotational direction of a relative rotation of the external cutting member (10) and the supporting member (30) about a central axis (14) of the hair-cutting unit (4), the flexible elements (42) are made to flex either upwardly or downwardly in an axial direction (A).

In a hair-cutting unit for a rotary electric shaver, which is of the type comprising an external cutting member (10), an internal cutting member and a supporting member (30), an exposure distance over which a skin-contacting surface of a shaving track of the external cutting member (10) protrudes relative to an upper surface of the supporting member (30) is adjustable. To this end, an adjustment system is provided, which comprises, among other things, at least one adjustment set of a guiding channel and a following element (42) engaging the guiding channel, and also an initial position setting system configured to enable synchronization of the exposure distance setting between a number of the hair-cutting units, during which an initial position of the following element (42) in the guiding channel defined by a stop arrangement of the guiding channel is realized and maintained.

An electric cutter of a hair-like body according to the present invention includes an inner blade that is rotatable in a forward/rearward direction. The inner blade has a plurality of small blades in which a first blade edge is formed on a forward rotation side and a second blade edge is formed on a rearward rotation side. The electric cutter further includes switching means for switching rotation directions of the inner blade to switch between a first mode in which a hair-like body is cut by the first blade edge and a second mode in which the hair-like body is cut by the second blade edge. A rotation speed of the inner blade in the second mode is set to be higher than a rotation speed of the inner blade in the first mode.

A hair trimmer includes a trimmer housing having a drive end, a drive shaft projecting from the drive end, a chassis having one end associated with the drive shaft and an opposite end having at least one projecting charging pin, a radial flange at each of the ends, an endcap at each of the ends, each endcap having an axially extending annular skirt, the annular skirt dimensioned to enclose the corresponding chassis end, and a tubular sleeve of heat deformable plastic film dimensioned for slidingly surrounding the chassis and extending axially at least to the flanges, such that upon application of heat, the sleeve deforms around the chassis and the endcaps and forms a watertight enclosure.

The invention relates to a personal care device such as a hair cutter or electric shaver, comprising a handle, a working head pivotably attached to said handle, a holding brake for holding said working head in a desired pivot position relative to the handle, and a slider which is provided with a supplementary working tool such as a longhair trimmer and slidably attached to said handle to slide between an inactive parking position and an active working position for working with the supplementary working tool, wherein the slider is provided with an actuating contour for actuating the holding brake when the slider is in an intermediate position between the parking position and the working position and for releasing said holding brake when the slider is in said parking position

An electric hair cutting device including a housing having a first end and a second end opposite the first end, a bladeset mounted to the housing at the first end, the bladeset having a stationary blade and a reciprocating blade, an electric motor electrically connected to a power source within the housing, a drive shaft operatively connecting the electric motor to the reciprocating blade, a control module within the housing which controls a rotational speed of the electric motor; and a trigger which sends an actuation signal to the control module based on a partial actuation of the trigger between a minimum actuation and a maximum actuation, the control module adjusting a rotational speed of the electric motor based on the actuation signal.