A grommet is provided. The grommet includes a radially inner side wall, a radially outer side wall, and a support structure extending between the radially inner side wall and the radially outer side wall. The support structure includes a plurality of channel walls arranged in a grid-like pattern such that a plurality of hollow passages are defined by the plurality of channel walls.

A seal structure that includes: a grommet with a cylindrical shape that is installed in an attachment panel, the grommet including an opposing surface facing an attachment surface of the attachment panel; and a bracket that presses the opposing surface of the grommet against the attachment surface of the attachment panel.

A wire harness, including: an electrical wire; an exterior tube; and a flexible cover that includes: an exterior tube fixing portion that covers an outer peripheral surface of one end of the exterior tube and is fixed to the outer peripheral surface of the one end of the exterior tube, an electrical wire fixing portion that covers an outer peripheral surface of the electrical wire led out from the one end of the exterior tube and is fixed to the outer peripheral surface of the electrical wire, and a connection portion, which is formed by an elastic member of a constant thickness being folded over, that is folded over from the exterior tube fixing portion so as to cover the one end of the exterior tube and extends into the exterior tube, and is furthermore folded over and connected to the electrical wire fixing portion.

A power supply system including: a battery; a plug receiver into which a plug of a device can be plugged in a passenger compartment of a vehicle in which an occupant of the vehicle can ride; a floor that partitions between the passenger compartment and a space under the floor of the passenger compartment, the battery being mounted in the space under the floor; and an electric wire that extends from the battery, through the floor, and to the plug receiver and that can supply electricity.

An elastic tubular body includes a grommet fitted to an opening edge of a mounting hole of a support body, a flared portion formed in a flare shape and deformable so as to invert an inner face and an outer face and having a large diameter edge coupled to the grommet; and a bellows-like tube of a bellows-like tubular shape having a smaller diameter than an inner diameter of a small diameter edge of the flared portion, a first end of the bellows-like tube connected with the small diameter edge of the flared portion. The flared portion is configured to be in a state projecting from the grommet or in a state where the outer face is reversed to enter inside the inner face and store the flared portion in a storage space of the grommet. The bellows-like tube is stored inside the flared portion stored in the storage space.

A grommet includes: a water stopping part with an annular shape; a first partition wall part and a second partition wall part that form closing parts disposed on one side and the other side, respectively, of the water stopping part in an axial direction; a tubular part and a tubular part provided penetrating centers of the first partition wall part and the second partition wall part, respectively, and allowing a wiring material to be inserted thereinto; and a plurality of slit parts that divide one of the tubular parts, that is, the tubular part and the second partition wall part provided with the tubular part continuously to the water stopping part.

A first grommet 11 includes a ring-shaped seal portion 15 into which a peripheral edge of an attachment hole Pa is fit, and a joining piece 23 serving as a first joining portion. A second grommet 12 includes a holding portion 33 serving as a second joining portion that is joined to the joining piece 23. The seal portion 15 includes a brim portion 21 serving as a first flange portion that is engaged with a side surface Pc of a vehicle body panel P, and a lip portion 22 serving as a second flange portion that is engaged with a side surface Pb of the vehicle body panel P. Also, the joining piece 23 is formed on the inner side in the radial direction of the lip portion 22.

A metal grommet includes a front body and a back body which are brought into contact with an object. The front body includes a flange provided with a plurality of fixing bosses, a cylindrical front barrel vertically protruding from the flange, a plurality of outer coupling teeth formed on a front end of the front barrel, and a plurality of rib grooves formed between the outer coupling teeth at regular intervals. The back body includes a flange provided with a plurality of fixing bosses, a cylindrical back barrel vertically protruding from the flange, the back barrel being inserted into the front barrel, and an inner coupling flare protruding from the flange and spaced apart from the back barrel, in which the inner coupling flare is formed by casting, and is pressed by a presser so that a front end of the inner coupling flare is bent inwardly.

A cable structure includes a first cable, a second cable, a communicating portion, and a ventilation-tube connecting portion. The first cable includes a first power line, a first connector, a second connector, and a first tube. The first tube covers the first power line and has a first space. The second cable includes a second power line, a third connector, a fourth connector, and a second tube. The second tube covers the second power line and has a second space. The first space communicates with the second space via the communicating portion. The ventilation-tube connecting portion is provided at the first tube or the second tube. The ventilation-tube connecting portion is connected to a ventilation tube through which the first space and the second space are ventilated.

The invention relates to a method and to an apparatus for producing a plug-through connection arrangement of a plurality of electrical cables (1a-1d) and/or fluid-conducting hoses, having a sheathing (2) consisting of a plastic, which extend, arranged adjacently spaced apart from each other, through associated openings (3a-3d) of a plastic component (4), comprising the following steps: providing (A) the plastic part (4) with the pre-produced plurality of openings (3a-3d), installing (B) the electrical cables (1a-1d) and/or fluid-conducting hoses through the associated openings (3a-3d), such that the outer wall of the sheathing (2), which consists of plastic, comes into contact with the inner wall of the respective openings (3a-3d) of the plastic component (4), thermal welding (C) of the electrical cables (1a-1d) and/or fluid-conducting hoses to the plastic component (4) in the region of the respective opening (3a-3d), in order to produce an integrally sealing component bond, wherein at least two laser beam units (5a, 5b), positioned opposite each other, are aligned to an associated initial connection point, after which the oppositely positioned laser beam units (5a, 5b) are activated and caused to undergo a linear relative movement crosswise to the orientation of the openings (3a-3d), in order to create the integral bond by surface melting of the sheathing (2) together with the plastic component (4).