PROBLEM TO BE SOLVED: To provide a structure that prevents abrasion of a protrusion for preventing fixation between a small diameter rod body and a large diameter rod body.SOLUTION: An article includes a small diameter rod body having a first main body 12a of an elongate shape and a large diameter part 12b having an outer diameter larger than the first main body 12a formed in the base end of the first main body 12a, and a large diameter rod body 11 capable of receiving the small diameter rod body in the inside. The large diameter rod body 11 has the second main body 12a of the elongate shape and a protrusion 11c formed in an inner circumferential surface of the first main body 11a. The protrusion 11c comprises a woven first reinforcing fiber, and is configured to come in abutment with the outer circumferential surface of the large diameter part 12b when the small diameter rod body is drawn to a joint position.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2019,JPO&INPIT【課題】小径竿体と大径竿体との固着を抑制するための突起の摩耗を抑制する構造の提供。【解決手段】細長い形状の第1の本体12a及び前記第1の本体12aの基端に形成された前記第1の本体12aよりも大きな外径を有する大径部12bを有する小径竿体と、前記小径竿体をその内部に収容可能な大径竿体11と、を備える。前記大径竿体11は、細長い形状の第2の本体12aと、前記第1の本体11aの内周面に形成された突起11cと、を有する。前記突起11cは、織物状の第1強化繊維を含み、前記小径竿体が継合位置まで引き出されたときに前記大径部12bの外周面と当接するように構成されている。【選択図】図2
