| 摘要 |
PROBLEM TO BE SOLVED: To surely couple racks with ease without tools. SOLUTION: A rack comprises stays erected at the four corners of a rack and the end sections of the stays adjacent to each other connected by column- shaped bodies. Each of couplers 5 for coupling a plurality of racks is provided with coupling bodies 6 near the angle sections inside the frame body of the rack. A shaft body 7 which can project outside by sliding is inserted into each of these coupling bodies 6, and a guide groove 9 is also provided to slide the grip 8 of the shaft body 7 and fix the shaft body 7 left projected. The shaft body 7 is provided with locking pieces 10 and 10 near its tip section and the grip 8 to slide the shaft body 7 from nearly intermediate section to a terminal section. The shaft body 7 is energized by a spring 11 in the projection direction, and a through hole through which the shaft body 7 can be inserted near the angle sections outside the frame body of the rack is provided. In this through hole, locking piece insertion sections through which the locking pieces 10 and 10 can be inserted are successively provided.
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