Abstract: There is provided a grommet with water-blocking performance improved by suppression of deformation of a rear end caused by deformation of a fastening fixing portion. The grommet includes: a rear band mounting portion 415 which fastens and fixes a portion displaced from the rear end and overlapping a corrugated tube 5 fitted in the grommet by using a band-shaped binding band 8; and a plurality of rear end-side annular protruding portion 411, first fixed-side annular protruding portion 412, and second fixed-side annular protruding portion 413 protruding from an inner peripheral face and extending in a circumferential direction and disposed along a front-rear direction X so as to be fitted with the corrugated tube 5 by use of protruding and recessed shapes.

Abstract: There is provided a grommet with water-blocking performance improved by suppression of deformation of a rear end caused by deformation of a fastening fixing portion. The grommet includes: a rear band mounting portion 415 which fastens and fixes a portion displaced from the rear end and overlapping a corrugated tube 5 fitted in the grommet by using a band-shaped binding band 8; and a plurality of rear end-side annular protruding portion 411, first fixed-side annular protruding portion 412, and second fixed-side annular protruding portion 413 protruding from an inner peripheral face and extending in a circumferential direction and disposed along a front-rear direction X so as to be fitted with the corrugated tube 5 by use of protruding and recessed shapes.

Abstract: In a grommet (1), a centering unit and a temporary anchor unit are provided on an outer surface of a grommet inner member (2). The centering unit includes a plurality of centering portions (e.g., centering claws 8) configured to elastically abut on an attachment panel (20) at an inner edge thereof around an insertion hole (21) so as to position the grommet inner member (2) in a center of the insertion hole (21). The temporary anchor unit includes a plurality of engaging portions (e.g., temporary anchor claws 7) configured to engage with the inner edge of the attachment panel (20), thereby supporting the grommet (1) in an axial direction thereof before lock portions (e.g., lock claws 6) make the grommet inner member (2) retained at the inner edge of the attachment panel (20) around the insertion hole (21) when the grommet inner member (2) is inserted into the insertion hole (21).

Abstract: In a grommet (1), a centering unit and a temporary anchor unit are provided on an outer surface of a grommet inner member (2). The centering unit includes a plurality of centering portions (e.g., centering claws 8) configured to elastically abut on an attachment panel (20) at an inner edge thereof around an insertion hole (21) so as to position the grommet inner member (2) in a center of the insertion hole (21). The temporary anchor unit includes a plurality of engaging portions (e.g., temporary anchor claws 7) configured to engage with the inner edge of the attachment panel (20), thereby supporting the grommet (1) in an axial direction thereof before lock portions (e.g., lock claws 6) make the grommet inner member (2) retained at the inner edge of the attachment panel (20) around the insertion hole (21) when the grommet inner member (2) is inserted into the insertion hole (21).