| 摘要 |
PURPOSE: A hinge having a restoring unit is provided to control the restoring speed of a door and to prevent the nose caused by rotation by installing a bearing to decrease the frictional force of a rotary plate. CONSTITUTION: The hinge having a restoring unit contains: a fixed plate(10) fixed to a doorframe; a rotary plate(20) fixed to a door; a joint(30) connecting the rotary plate(20) to the fixed plate(10) rotatively; a restoring unit(40) for making a door closed automatically by applying force to a spring and rotating when the rotary plate(20) rotates and controlling the restoring speed of a door by controlling the force added on the spring when a door is closed; and a bearing(50) installed between the fixed plate(10) and the rotary plate(20) to reduce frictional force of the rotary plate(20).
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