Insulator
AssigneeNGK Insulators, Ltd.
InventorsTakanori KONDO, Tomoya IIZUKA
Life of this patent
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Abstract
An insulator includes a core having a rod-shape, a first end fitting and a second end fitting that secure both ends of the core in an axial direction of the core, and a housing that covers an outer periphery of a portion of the core, the portion being located between the first end fitting and the second end fitting wherein the housing includes a first region and a second region, the first region that is provided at a position including an interface between the first end fitting and the housing in the axial direction, and the second region that is provided at a position adjacent to the first region and closer to the second end fitting than the first region in the axial direction, and the first region has a lower resistivity than the second region.
Claims13
An insulator comprising:
- a core having a rod-shape,
- a first end fitting and a second end fitting that secure both ends of the core in an axial direction of the core, and
- a housing that covers an outer periphery of a portion of the core, the portion being located between the first end fitting and the second end fitting, the housing having a trunk portion and a plurality of sheds, and being composed of an insulating polymer material as a main component,
- wherein the housing includes a first region and a second region, the first region that is provided at a position including an interface between the first end fitting and the housing in the axial direction, and the second region that is provided at a position adjacent to the first region and closer to the second end fitting than the first region in the axial direction, and
- the first region has a lower resistivity than the second region.
Dependencies are inferred from the claim text.