Patent ID: 8590220

Claim:
A metal joint, configured to connect a first subject member and a second subject member, wherein the first subject member and the second subject member are relatively displaceable in a direction of a relative displacement, the first subject member includes a first attachment plane which is parallel to the direction of the relative displacement, and the second subject member includes a second attachment plane which is opposite to the first attachment plane, the metal joint comprising: a steel sheet which is arranged between the first attachment plane and the second attachment plane, and is folded to contact to the first attachment plane and the second attachment plane alternately while reciprocating more than one time between the first attachment plane and the second attachment plane along a direction which is orthogonal to the direction of the relative displacement and is parallel to the first attachment plane; wherein the steel sheet includes: more than one rectangular first attachment portions which are attached to the first attachment plane in a manner that its surface contacts the first attachment plane; more than one rectangular second attachment portions which are attached to the second attachment plane in a manner that its surface contacts the second attachment plane; and more than one rectangular plate portions which connect the first attachment portion to the adjacent second attachment portion, wherein the plate portion is connected in a right angle to the first attachment portion and the second attachment portion, and wherein an attachment direction of each of the first attachment portions with respect to the first attachment plane and an attachment direction of each of the second attachment portions with respect to the second attachment plane are set so that surfaces of the plate portions follow the direction of the relative displacement.