| 摘要 |
PROBLEM TO BE SOLVED: To provide a hook cover covering a hook opening part from outside the hook for preventing the falling of the hook from a shackle of a swing. SOLUTION: This hook cover consists of a pair of cover half bodies facing each other and covering the hook opening from outside the hook, which is hung to the shackle of the swing and connected thereto, wherein the cover half bodies are fixed to the hook from both sides of the cover by bolts and nuts. COPYRIGHT: (C)2009,JPO&INPIT
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