| 摘要 |
PURPOSE: A door hinge served as a door checker is provided to reduce production costs while the door hinge operates as the door checker and to improve the reliability and durability of a door. CONSTITUTION: A door hinge used for a door checker comprises a first hinge bracket(12) fixed on a body, a second hinge bracket(14) hinged to the first hinge bracket by a hinge shaft(16) while being fixed to a door, a torsion bar(18) coupled with the first hinge bracket to apply reactive torque to the second hinge bracket, and a curved face unit supplying active force to the torsion bar according to the rotation of the second hinge bracket. The door is not easily opened by the elasticity of the torsion bar despite applying force to the door when a car travels. Moreover, the door is opened and closed by receiving the torsion bar into a groove of the curved face unit while supplying critical force over the force of the torsion bar when opening the door.
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