| 摘要 |
PROBLEM TO BE SOLVED: To provide a stackable shelf structure capable of preventing buckling distortion by a concentrated load by enhancing strength around a lock part of a front-side post. SOLUTION: A shelf body 1 is provided with: internal hollow posts 2-5 erected at four corners; both-side brace members 6 and 7; a rear side brace member 8; and shelf frames 9 arranged at upper ends of the respective posts. An engagement part 15 having an engagement projecting part is formed at the lower end of each of the front-side posts 2 and 3; a recessed lock part 16 for fitting and locking an engagement part of an upper shelf body thereto is formed at the upper end thereof; and the lock part is formed of a step-like space part delimited by each outer pipe part 2a at the upper end of the front-side post and an inner pipe part stored in the outer pipe part and fixed by welding. Partial welding parts out of a plurality of welding parts formed at upper edges of the inner pipe part are formed on the side opposite to the arrangement position of a reinforcing plate 14 and in a generation part of a concentrated load received from the upper shelf body by extending them along the circumferential direction. COPYRIGHT: (C)2007,JPO&INPIT
|
