SHAVING UNIT AND SHAVING APPLIANCE

• Main Authors: Fokke, VOORHORST, Geert, VEENSTRA, Harm, KOOIKER
• Format: Patent
• Language: English; French; German
• Published: 06.11.2019
• Subjects: CUTTING; HAND CUTTING TOOLS; HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SEVERING; TRANSPORTING

The present disclosure relates to a shaving appliance (10) and to a shaving unit (24), the shaving unit (24) comprising a rotary cutter (30, 130) comprising a plurality of cutter blades (62, 162) that are provided with a cutting edge (64, 164), the rotary cutter (30, 130) being arranged to rotate about a rotation axis (26, 126) in a direction of movement (36, 136); a guard cap (28, 128) having an annular shaving track (44, 144) surrounding the rotation axis (26, 126) for cooperation with the cutter blades (62, 162), the shaving track (44, 144) being provided with hair-entry slots (46, 146) that, seen in the direction of movement (36, 136), have a frontal edge (48, 148) and a rear edge (50, 150); wherein the frontal edges (48, 148) of the hair-entry slots (46, 146) are, in a cutting portion (70, 170) along the long side extension of the hair-entry slots (46, 146), inclined with respect to a radial direction (96, 196) extending from the rotation axis (26, 126), wherein a slot angle (α) representing an angle of inclination between the frontal edges (48, 148) of the hair-entry slots (46, 146) and the radial direction (96, 196) is in a range from 25° to 60°; wherein a shearing angle (δ), defined by a difference between the slot angle (α) and an angle of inclination (β) of the cutting edges (64, 164) of the cutter blades (62, 162) with respect to the radial direction (96, 196), is in a range from +20° to -20°; and wherein the shearing angle (δ) is defined at an actual point where the frontal edges (48, 148) and the cutting edges (64, 164) cooperate.