| 摘要 |
The waiting station comprises at least one wall structure composed of vertical columns, horizontal beams and a mullion, each of said members being contituted of aluminum tubing. Such tubular members are provided with pairs of cooperative interlatching elements, each of such pairs comprising a flanged latch plate that is wholly contained within the opening at one or both ends of a tubular member so that the outer surface of such latch plate is flush with the terminal end of the tubular member, and a Z-shaped catch having one end portion secured to the exterior surface of the wall of a tubular member and having its their end portion interlatchable with the latch plate. In such interlatched condition the two interlatching elements are entirely concealed by the connected end of one of the tubular members and the wall of the other connected tubular member. The wall structure is constructed in a modular fashion, each module comprising two vertical columns, an upper and lower horizontal beam spanning the space between the two columns at places spaced from the terminal ends of the vertical columns, and a vertical mullion spanning the space between the centers of the horizontal beams. The aforesaid assemblage of interlatched tubular members are locked together by two window units that fill in the two spaces formed by the tubular members of each module, the sides of the frame of each window unit being securely fastened to the enclosing tubular member portions. If the waiting station comprises a three sided wall structure, the back and side modules of such structure are further locked together by a rectangular roof structure, the beams of which are connected together and are seated on and connected to the upper projecting ends of the vertical columns of the structure by the aforesaid cooperative interlatching elements.
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