| 摘要 |
PROBLEM TO BE SOLVED: To improve the safeness of pulling a hand inserted into a mailbox slot from the mailbox slot. SOLUTION: The mailing door supporting structure reduces the force of the lower edge 31 of a mailbox door 3 to cut into a hand B by making a spindle 7 moveable upward by the urging force of spring members 9 and 9 when the hand B is pulled out of the mailbox slot 5. COPYRIGHT: (C)2009,JPO&INPIT
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