| 摘要 |
PURPOSE: A door handle, an injection molding device for manufacturing the same, and a manufacturing method of the door handle are provided to simply design various sizes of the door handles as a curved portion of the door handle can be designed by adjusting a diameter of a base circle of a reverse-involute curve according to the size of the door handle. CONSTITUTION: A door handle (100) includes a space forming unit (120) and a grip unit (130). The space forming unit forms a round recessed space on the door. The grip unit is formed on the front of the space forming unit to be integrated. The inner surface of the space forming unit is formed into a reverse-involute curve. The reverse-involute curve is a curve in which an end portion of an arc existing on the base circle form when the arc is unwound in a tangent form of the base circle according to the rotation of the base circle. |
