FIXED STRUCTURE, FIXING METHOD, AND FIXING DEVICE

原文（中国語）

A structure in which a plurality of members including at least a first member are fixed, in which a first through-hole is provided in the first member, a caulked body is inserted into the first through-hole, a first opening portion that is open to one flat surface portion of the first member is formed at one end of the first through-hole, a first recessed portion is provided in the one flat surface portion of the first member to surround the first opening portion, a first head portion at one end of the caulked body is stored in the first recessed portion, and the one flat surface portion of the first member and the first head portion are flush with each other, and a fixing method and a fixing device, each of which includes a step of caulking both ends of the caulked body at the same time.