Corner knife for carrying out e.g. right side coating of wall, has blade comprising isosceles triangular upper part utilized in closed corners, and lower part that is formed of semi-circle or has shape similar to that of semi-circle

摘要

The knife (Ca) has an ordinary handle (M) connected to a blade (L) that is different from a blade of an existing putty knife that is in the form of laurel leaf, by shape (F). The blade comprises a lower part (A) that is formed of a semi-circle (c) or has shape similar to that of the semi-circle, and an isosceles triangular upper part (T) utilized in closed corners. An isosceles triangular base (B) is associated with height (H) of the upper part of the blade such that a base and height ratio ranges from 1 and 4 to 3 and 4.