The grommet also includes an annular opposing portion that opposes a portion of the vehicle body panel surrounding the insertion hole, and is sandwiched between the vehicle body panel and a bracket fixed to the vehicle body panel. Furthermore, the grommet includes a coupling portion that couples the insertion portion and the opposing portion so as to close a gap between the insertion portion and the opposing portion. The opposing portion includes an annular sealing portion to be in intimate contact with the vehicle body panel. The coupling portion includes a plurality of pleat portions that extend along a circumferential direction of the opposing portion, and are adjacently arranged in a radial direction of the opposing portion, when viewed from an axial direction of the opposing portion.

An electrical wire connection device is provided with: a shield shell, one end side having a connection part for inserting an electrical wire, the other end side having a cap part that can be mounted on a casing; a grommet including a soft material, having formed at one end side an extension cylinder part through which an electrical wire can be passed, and having formed at the other end side a skirt part fitted into the shield shell from the connection part side and fitted to the outer peripheral surface of a step part; and a grommet protective member formed of material harder than the grommet and arranged surrounding the skirt part from the outer peripheral surface side, a flange part being formed on the inner peripheral surface of the grommet protective member and pressing against the outer peripheral surface of the grommet.

A grommet includes a cylindrical portion and an attachment portion formed to project from an outer peripheral portion of the cylindrical portion. An annular groove into which an inner peripheral edge portion of the through-hole can be fitted is formed in an outer peripheral portion of the attachment portion. A bottom face of the annular groove is formed with a racetrack shape having a pair of straight portions and a pair of arc portions that are formed with an outwardly convex arc shape and respectively connect end portions of the pair of straight portions on one side and end portions on the other side. Inner peripheral portions of the arc portions include portions in which the thickness dimension gradually increases from the centers of the arc portions toward connection portions that connect the arc portions to the straight portions.

A grommet includes a cylindrical portion and an attachment portion formed to project from an outer peripheral portion of the cylindrical portion. An annular groove into which an inner peripheral edge portion of the through-hole can be fitted is formed in an outer peripheral portion of the attachment portion. A bottom face of the annular groove is formed with a racetrack shape having a pair of straight portions and a pair of arc portions that are formed with an outwardly convex arc shape and respectively connect end portions of the pair of straight portions on one side and end portions on the other side. Inner peripheral portions of the arc portions include portions in which the thickness dimension gradually increases from the centers of the arc portions toward connection portions that connect the arc portions to the straight portions.

A cable assembly includes a grommet, a cable, and a ferrule. The grommet has a cylindrical sleeve defining a cable channel therethrough and a flange extending radially outward from the cylindrical sleeve. The cable includes one or more insulated wires, a cable shield surrounding the one or more insulated wires, and an outer jacket surrounding the cable shield. The cable extends through the cable channel of the grommet. The cable shield and the one or more insulated wires protrude from an end of the outer jacket. The cable shield has an overlap portion extending around the end of the outer jacket and surrounding and engaging the cylindrical sleeve of the grommet to electrically connect the cable shield to the grommet. The ferrule surrounds and engages the overlap portion of the cable shield to secure the overlap portion to the cylindrical sleeve of the grommet.

A lead-through or connecting element is provided that includes an assembly having a carrier body of a high-temperature alloy, a functional element, and an at least partially crystallized glass. The crystallized glass is between a portion of the functional element and a portion of the carrier body. The carrier body subjects the crystallized glass to a compressive stress of greater than or equal to zero, at a temperature from at least 20° C. to more than 450° C. Also provided are a method for producing a lead-through or connecting element, the use of such a lead-through or connecting element, and to a measuring device including such a lead-through or connecting element.

A lead-through or connecting element is provided that includes an assembly having a carrier body of a high-temperature alloy, a functional element, and an at least partially crystallized glass. The crystallized glass is between a portion of the functional element and a portion of the carrier body. The carrier body subjects the crystallized glass to a compressive stress of greater than or equal to zero, at a temperature from at least 20° C. to more than 450° C. Also provided are a method for producing a lead-through or connecting element, the use of such a lead-through or connecting element, and to a measuring device including such a lead-through or connecting element.

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 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.