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.

The present invention relates to a hair removal device, in particular a hair trimmer or a shaver or a hair trimmer portion of a shaver, comprising a handle with a motor and a hair removal head, said hair removal head being provided with at least a first hair cutting unit with an outer blade and an inner blade, said inner blade being reciprocally moveable along a first axis relative to the outer blade, wherein said outer blade comprises a row of teeth cooperating with said inner blade for cutting hair. At an outer border first and second skin support surfaces are provided. The skin sides of tooth tips are provided below or on same level as at least one of said first and second skin support surface in a direction towards said handle or said skin sides of said tooth tips are configured such to not cross or extend beyond a connecting line parallel to said second axis between said first and second skin support surfaces.

Electric shaver (1) having a main body (3) and a shaving unit (5) coupled to the main body. The shaving unit has three hair-cutting units (9a, 9b, 9c) each having an external cutting member (11) with a skin-contact surface (13) with hair-entry openings (15) and an internal cutting member (17) which is rotatable relative to the external cutting member. The hair-cutting units each have at least one geometric parameter (w) that influences a hair-cutting process of each individual hair-cutting unit. The shaving unit can be positioned relative to the main body in at least two different angular positions about a central axis (37) of the shaving unit. A value of the geometric parameter of at least one of the hair-cutting units is different from the values of the geometric parameter of the other hair-cutting units.

The invention provides a dual-power multi-head electric shaver, which is characterized by comprising a main body housing and a main body bottom case, wherein a detachable multi-head shaving component is arranged above the main body housing, and the shaving component comprises a plurality of screens; and blades are correspondingly arranged in the screens, a first gear set for driving the blades to rotate is arranged below the shaving component, a second gear set for driving the screens to rotate is arranged in the shaving component, and a first motor and a second motor for respectively driving the first gear set and the second gear set to rotate are arranged in the main body housing. The blades and screens of the invention can both rotate, allowing for easy guiding of long and short hair into the screens for cutting, resulting in a cleaner and more uniform shaving effect.

An electric shaver comprising a shaver handle comprising a shaver handle connection portion and a shaver head. The shaver head has a shaver head connection portion configured to rotationally couple to the shaver handle connection portion, a shaver head body, and a plurality of razors rotationally coupled to the shaver head connection portion. The shaver handle connection portion is configured to rotate the shaver head connection portion, which in turn, is configured to rotate the plurality of razors. The plurality of razors are configured to rotate simultaneously in unison and are configured to move independently with respect to the shaver head body in a direction toward and away from the shaver head body.

A hair-cutting unit (4) for use in a hair-cutting appliance comprises an external cutting member (5) having hair-entry openings in a cutting track surface (58), an internal cutting member (6) having at least one hair-cutting element and being movable with respect to the external cutting member (5), and a skin-supporting structure (7) having a skin-supporting surface (71) for contacting a portion of skin to be subjected to a hair-cutting action. The external cutting member (5) is displaceable relative to the skin-supporting structure (7), and the hair-cutting unit (4) further comprises a safety mechanism which is designed to enable stepped and instantaneous variation between at least two discrete stages of a level (l.sub.c) of the cutting track surface (58) with respect to a level (l.sub.s) of the skin-supporting surface (71), in relation to pressure exerted by the external cutting member (5) on the skin.