Electrical appliance for performing a cutting action on hairs as present on an area of skin

An electrical appliance for performing a cutting action on hairs present on an area of skin, the electrical appliance comprising:

• a functional head having at least one movably arranged internal cutting member for cutting off the hairs, and further having an external cutting member for contacting the area of skin,
• wherein the external cutting member is arranged in the functional head to cover and contact the internal cutting member,
• wherein the external cutting member is provided with hair-entry apertures for allowing the hairs to penetrate the external cutting member and thereby encounter the internal cutting member, and
• wherein the internal cutting member and the external cutting member are designed such that a friction between the internal cutting member and the external cutting member is related to a condition of wear of at least one of the internal cutting member and the external cutting member according to a predetermined relation between the friction and the wear;
• a motor for driving the internal cutting member of the functional head;
• measuring means for performing a measurement of a parameter related to the friction between the internal cutting member and the external cutting member;
• processing means for processing the measured parameter and thereby determining an actual condition of wear of one of the internal cutting member and the external cutting member on the basis of the measured parameter;
• and
• indicating means for providing a user, of the electrical appliance with information relating to the actual condition of wear of the one of the internal cutting member and the external cutting member;
• wherein the external cutting member is rotatably arranged in the functional head,
• wherein the external cutting member includes a pin which is arranged on a side of the external cutting member facing the internal cutting member and which extends in a direction towards the internal cutting member, and wherein a length of the pin corresponds to a distance which, when present between the internal cutting member and the external cutting member, is predetermined to be a worn-away condition of at least one of the internal cutting member and the external cutting member.

An electrical appliance for performing a cutting action on hairs present on an area of skin, the electrical appliance comprising:

• a head having at least one movably arranged internal cutting member for cutting the hairs, and further having an external cutting member for contacting the area of skin,
• wherein the external cutting member is arranged in the head to cover and contact the internal cutting member,
• wherein the external cutting member is provided with hair-entry apertures for allowing the hairs to enter the external cutting member and thereby encounter the internal cutting member, and
• wherein the internal cutting member and the external cutting member are designed such that a friction between the internal cutting member and the external cutting member is related to a condition of wear of at least one of the internal cutting member and the external cutting member according to a predetermined relation between the friction and the wear;
• a motor for driving the internal cutting member of the head;
• measuring means for performing a measurement of a parameter related to the friction between the internal cutting member and the external cutting member;
• processing means for processing the measured parameter and thereby determining an actual condition of wear of one of the internal cutting member and the external cutting member on the basis of the measured parameter;
• and
• indicating means for providing a user of the electrical appliance with information relating to the actual condition of wear of the one of the internal cutting member and the external cutting member;
• wherein the internal cutting member is rotatably arranged in the head,
• wherein the internal cutting member includes a pin which is arranged on a side of the internal cutting member facing the external cutting member and which extends in a direction towards the external cutting member, and
• wherein a length of the pin corresponds to a distance which is determinative of the condition of wear of at least one of the internal cutting member and the external cutting member and the condition of wear indicates the required replacement of at least one of the cutting members.