Dust Cover Combination Body

Abstract

The invention provides a dust cover combination body with a novel structure. Damage to the dust cover can be prevented due to the light and compact structure, so durableness of the dust cover can be improved. A snap cylinder part (28) is arranged over an axis direction of a rippled cylinder part (18) of the dust cover (14) made from resin; a snapping groove (32) and a plurality of insertion grooves (40) are formed in the snap cylinder part; the snapping groove opens towards the periphery of the snap cylinder part and circumferentially extends; the plurality of insertion grooves upwardly extend from the snapping groove; one the other hand, on an upper side isolation member (16), there is provided a snapping fixing protrusion part (68) protruding toward the internal periphery side and made from material harder than the upper side isolation member (16); the snap cylinder part of the dust cover is inserted into the upper side isolation member; the snapping fixing protruding part inserted into the snapping groove via the insertion grooves is fixed to the snapping groove in the axis direction when the dust cover rotates relatively to the upper side isolation member; and the upper end part of the dust cover is assembled onto the upper side isolation member, so the dust cover is supported.

Description

technical field [0001] The present invention relates to a dust cover assembly including a dust cover mounted on a suspension mechanism and an upper insulator. Background technique [0002] Conventionally, in the suspension mechanism of an automobile, a dust cover installed so as to cover the piston rod of the shock absorber is known, and an upper side spacer that supports the coil spring of the suspension mechanism at the upper end is known. . For example, Japanese Unexamined Patent Publication No. 2003-72338 (Patent Document 1) proposes a dust cover assembly in which a dust cover and an upper spacer are integrally formed with a rubber elastic body. [0003] In addition to the structure in which only the upper end is attached to the piston rod shown in Patent Document 1, the dust cover has a structure in which the upper end is attached to the piston rod and the lower end is attached to the cylinder in order to prevent foreign matter from entering from below. In this case, ...

AI Technical Summary

Problems solved by technology

[0004] However, if the dust cover is to be fixed to the above-mentioned fitting, when the fitting is disposed above the upper spacer, the fitting needs to be extended below the upper spacer, which increases the size of the axial direction and increases the weight. will be a problem

In addition, when the shock absorber is greatly contracted in the axial direction by the input of a large load, the dust cover may be caught between the fitting and the cylinder and be damaged

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