| 摘要 |
PURPOSE: A hinge for a door is provided to couple a door to a doorframe rotatively, to close a door automatically and to fix a door at the opened state. CONSTITUTION: The hinge for a door comprises: a sliding tub body(1) provided with a shaft hole(1a) and a sliding plane(1b); a guide tub body(2) provided with a shaft hole(2a) and a guide plane(2b) contacted with the sliding plane(1b) of the sliding tub body(1); and a shaft(4) coupled to the shaft holes(1a,2a) of the sliding tub body(1) and the guide tub body(2) to reciprocate along the sliding plane(1b) of the sliding tub body(1) and a guide plane(2b) of the guide tub body(2).
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