Patent ID: 8349432

Claim:
A honeycomb structure comprising: a ceramic block formed by combining a plurality of honeycomb fired bodies together with an adhesive layer interposed between the plurality of honeycomb fired bodies, said plurality of honeycomb fired bodies each having cell walls extending along a longitudinal direction of the honeycomb fired bodies to define cells, wherein said honeycomb fired bodies adjacent to each other via said adhesive layer each have at least one projected portion on the opposing side faces, the projected portions formed on said honeycomb fired bodies overlap each other when seen from an end face of the honeycomb structure and the projected portions formed on said adjacent honeycomb fired bodies abut each other, and said adhesive layer is provided in a manner that a shortest distance between a side face of one of said adjacent honeycomb fired bodies and a projected portion of another of said adjacent honeycomb fired bodies is smaller than a height of said projected portion from a side face of said another of said adjacent honeycomb fired bodies when said honeycomb fired bodies are adjoined to each other via said adhesive layer.