Caterpillar Inc.
GROMMET

Abstract:

A grommet is disclosed. The grommet includes a tubular portion including a frustoconical segment and a first circular segment. The frustoconical segment includes a at least one opening within a frustoconical surface, where the at least one opening forms one or more flanges. The tubular portion is configured to be inserted into a cabin through a cabin opening while forming an interference fit between the frustoconical segment and the first circular segment with the cabin opening to prevent ingress of water into the cabin. The one or more flanges are configured to be compressed upon insertion in the cabin opening, and expanded after reaching an inner side of the cabin. The present grommet with a flexible and cost-effective self-lock design connects to an external roof harness.