| 摘要 |
<p>A punching device for punching an edge of an oval subject to make a pattern includes a jig having a pattern hole with a predetermined pattern and supplied with the subject to be patterned; a punching member having a punch pin corresponding to the pattern hole so as to form a punching pattern by punching an edge of the subject supplied to the jig; and a base on which the jig and the punching member are coupled, the base giving a base surface on which the subject to be punched is supplied, wherein the base includes: a rotation guide projection (21) for guiding an edge of the oval subject with the same curvature as the edge when the subject is rotating; a positioning guide projection (22) for setting an initial position of the subject together with at least a part of the rotation guide projection so that an initial punching region of the oval subject is punched; and a criterion marking (24) having the same pattern as the pattern of the pattern hole or formed as a part of the pattern so as to set a rotating angle of the oval subject so that the punching pattern is successively formed.</p> |
