1. The method of geometrical formation of the portion (10) of the Appliance for mounting on the head to match the selected portion of the head of the intended user, the method comprising the steps of: determining a triangular region (12, 12 ') in the indicated area of the Appliance for mounting on the head which generally coincides with the indicated selected portion of the intended user's head, wherein said triangular region is formed by the first side (14, 14 ′), the second side (18, 18 ′) and the third side (20, 20 ′)； form a curved and cup-shaped region (22, 22 ') in the indicated section of the Appliance for fastening on the head by combining and connecting the second and third sides of the said triangular region. 2. A method according to claim 1, wherein said first side is located on the outer edge (16) of a portion of the Appliance for mounting on the head, and the second and third sides extend into said portion of the Appliance for mounting on the head in the direction from the first side. A method according to claim 1, wherein the step of combining and connecting said second and third sides includes folding said triangular region along a fold line (26) located in the triangular region. The method according to claim 1, further comprising the step of removing the triangular region from the attachment portion for attaching to the head before connecting the second and third sides of the triangular region. The method according to claim 1, further comprising the step of cutting off the portion of the Appliance for mounting on the head on the second side or on the third side, and in which the stage on which1. Способ геометрического формирования участка (10) приСпособления для крепления на голове для соответствия выбранному участку головы предполагаемого пользователя, причем указанный Способ включает в себя этапы, на которых:определяют треугольную область (12, 12') на указанном участке приСпособления для крепления на голове, которая в общем совпадает с указанным вы
