GROMMET

A grommet includes a lip mountain integrated with an inner side harness insertion portion; a panel abutment portion abutting on a periphery of the through hole on an outer side of a vehicle body panel; a connection portion connecting the lip mountain and the panel abutment portion; a work unit formed across an outer side harness insertion portion and the panel abutment portion; and a work pressingportion integrated with the outer side harness insertion portion and the work unit. The connection portion includes an inclined portion that is gradually reduced in diameter toward the panel abutmentportion; a parallel portion that is connected to the inclined portion and has a constant outer diameter; and a projection portion that is formed in the parallel portion and projects outward. The lipmountain and the inclined portion are smoothly connected by a mountain-shaped portion having a substantially arc shape in cross section. 一种护环，包括唇部山，其与内侧线束插入部分一体；面板邻接部分，其邻接在车身面板的外侧的通孔的周边上；连接部分，其连接唇部山和面板邻接部分；作业单元，其横跨外侧线束插入部分和面板邻接