Patent ID: 8414238
Filing Date: 2013-04-09
Classification: B60T,F16B,Y10T

Abstract:
1. A stud bolt attachment structure comprising a stud bolt and a container including a first member and a second member, wherein the stud bolt penetrates the container to join together the first member and the second member, where there is a difference in pressure between inside and outside the container; the stud bolt being disposed with a bolt head portion, a bolt shoulder portion whose diameter is smaller than a diameter of the bolt head portion, and a thread portion whose diameter is smaller than the diameter of the bolt shoulder portion, wherein the bolt shoulder portion includes a knurling portion that includes projecting portions and groove portions on its outer periphery, at least part of the knurling portion eats into the container during staking, and the bolt shoulder portion includes a bolt base portion that is disposed between the knurling portion and the bolt head portion and whose diameter gradually becomes larger from a knurling portion side of the bolt base portion to a bolt head portion side of the bolt base portion; and the first member and the second member are disposed with holes that the stud bolt penetrates, a diameter of the hole in the first member is formed so as to be substantially the same as or slightly larger than a diameter of the knurling portion, and a diameter of the hole in the second member is formed so as to be substantially the same as or slightly larger than the diameter of the bolt base portion on the bolt head portion side thereof.