An attachment comb, particularly a skin protecting comb, for a blade set of a cutting head of a hair cutting appliance, the attachment comb including a supporting frame and comb teeth that are arranged in a series and that define a skin contact zone at a top side thereof. The teeth extend from the supporting frame and include rounded tips at frontal ends thereof. Additionally, the teeth are non-uniform along the series and include two outer lateral teeth that define lateral ends of the series, along with central teeth arranged therebetween. At the lateral teeth, a lateral teeth tip radius (R.sub.tl) is present that is greater than a tip radius (R.sub.tc) of the central teeth. Also described herein is corresponding a cutting head and hair cutting appliance.

There is disclosed a coupling unit (100) for transmission of a rotary driving force, comprising a first coupling member (110) having a curved first bearing surface (116) and a second coupling member (150) having a main coupling body (154) and a curved second bearing surface engaging the first bearing surface thereby enabling rotation of the second coupling member (150) relative to the first coupling member (110). The second coupling member comprises at least two carrying elements (158) which are each provided with a respective one of at least two second bearing surface segments (160) of the second bearing surface that engage the first bearing surface. At least two connecting elements (156) of the second coupling member (150) each connect a respective one of the at least two carrying elements (158) with the main coupling body (154) and comprise an elastically deformable material. In a first deformed condition the elastically deformable material provides a first biasing force urging the at least two second bearing surface segments (160) into contact with the first bearing surface. A blocking element (120) of the first coupling member (110) is arranged between the first bearing surface (116) and the main coupling body (154) and is configured to prevent passage of the carrying elements (158) along the blocking element at least in the first deformed condition. In a second deformed condition of the elastically deformable material, wherein the elastically deformable material provides a second biasing force larger than the first biasing force, the carrying elements (158) are able to pass along the blocking element.

A shaving apparatus having a head portion intended for contact with a skin surface to cut hairs growing therefrom. The head portion may include a cylindrical screen and a cutting component located within a cavity defined by the cylindrical screen. The cylindrical screen includes a plurality of openings so that a user's hairs can pass therethrough to be cut by blades of the cutting component. The cylindrical screen may be rotatable about a rotational axis so that as the cylindrical screen is placed into contact with a skin surface and moved therealong, the cylindrical screen is made to rotate about the rotational axis. The shaving apparatus may include a brake sub-system to intermittently reduce a rotational velocity of the cylindrical screen.

The present invention is concerned with a skin treatment device and an interface for, preferably detachably, attaching a brush to a skin treatment device, wherein the skin treatment device comprises a drive unit, a component part driven by the drive unit to perform a rotatory and/or oscillating movement and a hood at least partially encasing said driven component part. One of said brush and said driven component part comprises at least two protrusions which both extend through openings in the hood when the brush is attached to the skin treatment device. At least one of said protrusions engages the other of said brush and said driven component part by snap fit when the brush is attached to the skin treatment device.

The invention relates to a coupling structure (8, 9, 10) for coupling a drive shaft (6) of a main body (2) of a hand-held appliance (1) to a driven part (7) of a releasable functional attachment (3) of the hand-held appliance (1). The coupling structure comprises a coupling bush (8), a coupling head (9) and a coupling spring (10). The coupling head (9) is axially fixed within the functional attachment (3), the coupling bush (8) is axially displaceable within the main body (2). The coupling spring (10) is housed in the main body (2) and urges displacement of the coupling bush (8) towards the coupling head (9), when the functional attachment (3) is attached to the main body (2). The coupling structure is compact, especially in the axial direction of the coupling structure, and especially within the functional attachment.

A cutter head (10) for a hair cutting machine, having an upper blade (14) and a lower blade (12) that is adjustable relative to the upper blade using an actuating element (100), having a support (32) with an adjusting element (16) which is adjustable relative to the support using the actuating element (100) and which carries out a relative movement between the upper blade and the lower blade in the direction of cutting. The actuating element can be selectively placed in one of two opposite side areas of the support for actuating the adjusting element connected to the lower blade (12). The actuating element (100) is removably connected to a shaft (62), mounted in the support (32), having a first element. The adjusting element is a second element having, in the cross-section, a U- and/or C-shape, the transverse or base limb being connected to the lower blade (12).

A self-aligning coupling linkage for a drive train, of a hair cutting appliance having a driving shaft and a non-aligning output shaft, includes a joint section having first and second connector portions that are configured to engage one another for torque transmission. The first second connector portions define a male connector having an external polygonal profile, viewed in a cross-sectional plane perpendicular to a longitudinal axis, and a female connector having an internal engagement profile. The male and female connectors are arranged in a self-aligning fashion for angular offset compensation, where wherein at least one of the male and female connectors is provided with at least one circumferentially arranged deflectable compensation element configured to urge the male and female connectors towards a centered alignment.

The present invention relates to electric shavers, handpieces of such shavers and a method of manufacturing such electric shavers. More particularly, the present invention relates to a shaver set comprising a plurality of electric shavers.

A device such as an electric shaver includes a working head attached to a handle for moving the working head along a skin surface, wherein at least one working tool is moveable relative to the handle under a skin contact pressure by a support structure to allow for pivoting of the working head's skin contact contour relative to the handle, wherein a biasing device is provided for biasing the working tool.

A device includes a handle; a blade housing including an opening; a motor positioned within the handle and having a drive shaft that rotates about a drive shaft axis; a connector including a recess receiving the drive shaft such that rotation of the drive shaft causes rotation of the connector about the drive shaft axis, wherein the connector comprises a TPE material; and a cutting blade positioned within the blade housing and configured to rotate about a cutting blade axis, wherein the cutting blade cuts hairs passing through the opening while the cutting blade is rotating, wherein the cutting blade engages the connector such that rotation of the connector causes rotation of the cutting blade about the cutting blade axis, wherein the TPE material has a sufficient Shore hardness to allow for misalignment between the drive shaft axis and the cutting blade axis.