CIRCLE CUTTING COMPASS, CAPABLE OF ACCURATELY DRAWING AND CUTTING THE SHAPE OF CIRCLE

摘要

PURPOSE: A circle cutting compass is provided to improve the accuracy of the compass by forming a pencil-lead case and installing an angle adjusting part to the shaft of the pencil-lead case.;CONSTITUTION: A circle cutting compass is a blade case integrated type compass. Three-sided blades(70) and a fixing plate(50) for adjusting the length of the blades are arranged in a blade case. A pencil-lead case is integrated with the combining part(40) of the compass instead of the blade case. If the blade is worn, the blade is cut using a blade cutting part(60) of the three-sided blades.;COPYRIGHT KIPO 2011