Suspension insulator

Abstract

The present invention provides a suspension insulator which can be easily be assembled to an appropriate position without unintentionally dropping out of the spring seat and can reduce a frequency of the generation of the problems such as the generation of the abnormal noise described above. An inner side surface of the inner peripheral wall surface of the cylindrical part (18a) between a first boundary plane (N1) and a second boundary plane (N2) has a first diameter ([Phi]3) smaller than a diameter ([Phi]0) of the outer peripheral wall surface (17as) of the peripheral wall part (17b) under the state that the insulator (18) is not secured to the spring seat (17), the inner side surface is configured to be a tight-contact wall surface which is in tight contact with the outer peripheral wall surface under the state that the insulator is secured to the spring seat (17). The entire inner peripheral wall surface of the body part (18b) and inner side surfaces (181-183) of the inner peripheral wall surface of the cylindrical part (18a) each has a diameter larger than the first diameter under the state that the insulator (18) is not secured to the spring seat (17), and are configured to be non-tight-contact wall surfaces, respectively, which are not in tight contact with the outer peripheral wall surface under the state that the insulator is secured to the spring seat.

Description

technical field [0001] The present invention relates to an insulator for a suspension arranged between a coil spring and a spring seat of a suspension device. Background technique [0002] Conventionally, a suspension insulator made of an elastic rubber material is arranged between a coil spring and a spring seat of a suspension device in order to prevent the vibration of the coil spring from being directly input to the vehicle body. This insulator is also referred to as a "coil spring insulator", hereinafter, simply referred to as an "insulator". [0003] Such as Figure 6 As shown in (A), the conventional insulator 100 has a cylindrical portion 101 and an annular main body portion 102 protruding radially outward from one end portion of the cylindrical portion 101 . The cylindrical peripheral wall forming part 111 of the spring seat 110 is fitted and inserted into the inner peripheral surface side of the cylindrical part 101 and the main body part 102 . That is, the insul...

AI Technical Summary

Problems solved by technology

In addition, when the inner peripheral surface of the main body part 102 also has an interference amount with the outer peripheral surface of the peripheral wall forming part 111, the main body part 102 cannot ensure flatness, for example, as Image 6 As shown in (B), there may be warping (warping)

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