| 摘要 |
PROBLEM TO BE SOLVED: To provide a returnable case, which has improved lock members that do not disengage upon receiving vibrations or an external force, and has no fitting parts that project sideways to be an obstacle. SOLUTION: The returnable case has the lock members 6 attached at the top corner of front/back side members (front member is shown in the figure). Each lock member 6 has a holding member 7 attached to the top corner of the side member, a slide bar 8 with a handle 8a, which is fitted to the holding member 7, and a locking member 9 made of an elastic material, which is fitted on the lower part of the holding member 7 via a member 13 having a spring function, where a first locking part 14 and a second locking part 15 are formed to be counter to each other. A projection 10 is formed vertically on the outer surface of an upper frame material 4a of the front side member. A first engaging hole 11, which corresponds to the slide bar 8, and a second engaging hole 12, which corresponds to the projection 10, are formed on the upper end of vertical frame materials 3c of left/right side members (right member is shown in the figure). The slide bar 8 is fitted into the first engaging hole 11 while the projection 10 into the second engaging hole 12 at each lock member 6 to connect the left/right side members to the front/back side members. Also, the handle 8a is locked to the first locking member 14 to keep each lock member 9 locked. COPYRIGHT: (C)2005,JPO&NCIPI
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