STRAIGHTNESS CHECKING METHOD

The invention provides a straightness checking method. The straightness checking method is capable of checking the straightness of a plurality of components disposed linearly. The straightness checking method includes the steps of standing a pin at each of both edge portions of linear members (13) of a plurality of linearly-disposed components (10), and also standing a cut-out pin (52) formed to have a cut-out (523) on a part of a side face thereof, at an intermediate portion between the both edge portions, fixing one end portion and the other end portion of a line member (61) respectively tothe pins stood at the both edge portions, bringing into contact with the intermediate portion of the line member (61) an uncut side face part (524) corresponding to a side face without the cut-out (523) formed of the cut-out pin (52), and rotating the cut-out pin (52) and checking whether or not the line member (61) vibrates due to rotation of the cut-out pin (52). 本发明提供种直线度确认方法。该直线度确认方法能够确认多个部件以直线状排列时的直线度。该直线度确认方法包括以下工序：