| 摘要 |
PROBLEM TO BE SOLVED: To make a metal ring hard to rust by improving waterproofing performance in a ring mold boot in which the metal ring is buried in an elastic body. SOLUTION: In the ring mold boot 10, the metal ring 11 is buried in the elastic body 12. The elastic body 12 is provided with at least two annular seals 12a3 and 12a4 for preventing foreign matters such as dust and moisture from the outside from entering the inside. A cutoff 12a1 via which the metal ring 11 is partially exposed is formed on the inner side than the annular seals 12a3 and 12a4. The foreign matters such as dust and moisture from the outside hardly enter a portion in which the cutoff 12a1 is formed, so that waterproofing performance can be improved, and the metal ring 11 can be made hard to rust. COPYRIGHT: (C)2009,JPO&INPIT
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