| 摘要 |
A rearview mirror mounting assembly comprises a mounting arm which is pivotally secured to a mounting base and may be further pivotally attached to an accessory or an interior rearview mirror. The mounting arm comprises a ball receiving portion for receiving and pivotally engaging a ball member on the mounting base. The ball receiving portion tightly engages the ball member in response to a biasing force exerted on the ball receiving socket by a biasing member within the mounting arm. The biasing member is aligned and guided within the mounting arm via at least one confinement member, such as an annular guide portion, extending longitudinally within the arm and surrounding at least one substantially flat or planar surface, which the biasing member engages. Preferably, one of the surfaces is rigidly secured to the arm, thereby reducing potential vibration between the arm and the interior rearview mirror. Preferably, the arm comprises a ball-in and ball-out mounting arrangement which provides a double ball joint mount for the interior rearview mirror.
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