| 摘要 |
PURPOSE: A door, which can be opened in right and left sides, is provided to prevent the invading of privacy by selectively opening a door in a desire direction. CONSTITUTION: A door, which can be opened in right and left sides, is composed like next. A string(3) is connected to the top and bottom of a door from in a direction from the left side of door frame(1) to the right side of a door(2). The string also passes from the left side of the door to the right side of the door frame. The string is backward expanded without fixing. An elastic body(4) supporting the door is formed on the center of the door frame in considering of the string interval generated when opening and closing the door. |
