| 摘要 |
PURPOSE: An installation structure expands the pressing surface of a bush inner pipe engaged between an installation bracket so as to restrain a relative motion and improve durability. CONSTITUTION: A suspension bush is formed by engaging an inner pipe(7) between an installation bracket(5) by an engaging bolt(1) and a nut(3), installing an outer pipe(9) outside of the inner pipe(7) with a certain gap and interposing a rubber(11) between the inner pipe(7) and the outer pipe(9). A bolt engaging device(13) on one side of the installation bracket(5) has a joint part(15) bent up to the inside of the inner pipe(7) and protrusive. The joint part(15) of the installation bracket(5) is adhered and engaged to the inner periphery of the inner pipe(7) by the engaging bolt(1). The engaging bolt(1) has a pressing part(17) in one side whose diameter is tilted to be larger to press the joint part(15) of the installation bracket(5) to the inner periphery of the inner pipe(7). Even if excessive pressure is transmitted to the pressing part(17), the relative motion between the inner pipe(7) and the installation bracket(5) is restrained to improve durability, and accordingly the damage of the rubber(11) is prevented in advance.
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