| 摘要 |
PURPOSE: An automatic door with rotational function is provided to open and close an automatic door by sliding when power supply is failed and to maximize utilization efficiency in an emergency by fully opening both automatic and manual doors. CONSTITUTION: Upon pushing an automatic door(13) in an exit direction in an emergency, a staple-shaped frame(20) installed at upper portion of the automatic door is released from an inverted staple-shaped frame(21) with a bracket(18). Thus, the automatic door is opened while sliding. A caster(22) installed at lower portion of the automatic door is rotatable in 360 angular degrees. Due to weight of the automatic door, the caster is lowered slightly and in contact with the ground. The caster performs as a support and a hinge and helps smooth rotation of the automatic door. A ball bearing(25) installed at rear portion of the inverted staple-shaped frame performs as an upper hinge of the automatic door.
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