| 摘要 |
This door is supported by at least one pair of hinges 4a, 4b-5a, 5b which are bracket-shaped and each branch of which has a length substantially equal to half of the width of the door and each of which is articulated, by the free end of one of its branches, on the vertical fixed pin 7, 6, and by the free end of its other branch on a vertical pin 8, 9, integral with the internal surface of the door, one 6 of the previously mentioned fixed vertical pins being housed in a vertical plane passing through one of the edges of the opening and at a distance from the plane of this opening which is substantially equal to the length of one hinge branch, while the other fixed pin 7 situated at a same distance from the plane of the opening is housed in a vertical plane 15 substantially passing through the middle of the opening, one 8 of the vertical pins integral with the internal surface of the door being housed substantially in the vertical plane 15 passing through the median axis of the port while the other 9 is housed in a vertical plane substantially passing through the edge of the door which, in the closed position of the door, coincides with the edge of the opening opposite to the previously mentioned one. <IMAGE>
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