| 摘要 |
A new elastomeric grommet-fastener assembly for use in connection with first and second apertured workpieces, for example in connecting a valve cover to an automotive engine block, with the fastener assembly being comprised of a fastener with clamping surface thereunder, a shank, and a reduced diameter entry portion; a washer member including a radial flange portion and an axially extending washer sleeve, with the washer means being telescopically positioned on the fastener shank; and an elastomeric grommet means, being molded from an elastomer, and having an axially extending sleeve portion, and a radial rim portion extending laterally from an upper part of the sleeve portion, with said grommet being telescopically positioned over the washer; and the sleeve of said washer having at least one or more holes therethrough such that the molded grommet has a portion of its elastomer protruding through to the inside of the washer sleeve, thereby enabling the washer with its associated grommet member to be captured and held on the fastener shank while still permitting slight relative longitudinal movement between the fastener shank and the grommet-washer members; and, a new technique for securing the valve cover of an automotive engine in position which serves to substantially reduce or eliminate structural noise and vibrations associated with the valve cover securement.
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