The graduator capable of drawing an intented angle at one time

摘要

This devise is, then set a point for forming a desired angle on the basis of the current position of the protractor, reference line, and a protractor that can be baked at a desired angle at a time by connecting in series the one end point and a certain point of this base line the provision for the purpose.; It is designed to achieve the above object comprises: a display forming an angle in the semi-circular groove formed in the inner parts of the curve with an angle scale is displayed; Forming linear reference line setting unit to set parts of the reference line in the semi-circular groove; And, the angle indicating means to move to the reference line can be set rotating on a central portion to a predetermined position one end to the other end rotates the right and left in the combined state indicating the angular scale shown in the curved portion of the angle display unit; As made and, draw and in that position to indicate the angle scale state corresponding to the other end of the angle indicating means to the desired angle of the angle display unit, a row an angle formed along the reference line setting unit and the one side of the angle indicating means It provides a protractor to draw a desired angle at a time, characterized in that to.