| 摘要 |
PROBLEM TO BE SOLVED: To provide a post composed of a post main body and a plug hermetically fixable to the post main body simply by inserting into the main body without applying an adhesive between the plug and the main body. SOLUTION: A small-diameter part to be inserted into the post main body is protruded from an end of the plug and a cylindrical recess for putting an end of the post main body is formed on the circumference of the small-diameter part. A hole is bored in the small-diameter part, a ridge is formed on the outer face of the small-diameter part in circumferential direction and the ridge is brought into close contact with the inner face of the post main body.
|
