| 摘要 |
PROBLEM TO BE SOLVED: To provide a set of trays which by connecting a required number of unit trays enables obtaining a tray of desirable size and by simple handling can be assembled and disassembled. SOLUTION: A unit tray 1 which is rectangular, formed of synthetic resin or the like, and has a plurality of parts-holding parts 6 in the upper side has jointing means 2, 2 in a symmetrical arrangement in each of the two lateral sides longitudinally. The jointing means 2 is divided equally into two steps, one row above the other, and consists of a plurality of indentations 3 and tongues 4 formed alternately at prescribed pitches longitudinally with the row above staggered by one pitch relative to the row thereunder. A jointing hook 4a is provided at one end of each tongue 4 in a longitudinal arrangement. The tongue 4 is so formed as to be fitted into an indentation 3 of an adjoining unit tray and allowed to be slid in the direction of the hooked face. The hooks at work are stopped from sliding by a locking means 5. |
