| 摘要 |
PROBLEM TO BE SOLVED: To provide an edge guard part not taking much time for fixing work and not coming off easily. SOLUTION: In the edge guard part 1 provided with a side plate 3 on both sides of a strip-like bottom 2 in the longitudinal direction respectively, lock pieces 5, 6, connected on both sides of the strip-like bottom 2 in place by a hinge 4, are individually set so as to face each other when the hinge 4 is turned to stand. On one 5 of the lock pieces forming a pair, a boss part 7 is provided, and on the other 6 of the lock pieces, a hole part 8 that is fittingly pressed or engaged to the boss part 7 is provided.
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