The first exterior member 30, the second exterior member 50, the elastically deformable sealing material 40 arranged to be exposed to the outside at the connecting portion F, and the first exterior member 30 are provided with an inward KI and a longitudinal direction. The first exterior member 30 is arranged at a position separated from the sealing material 40 in the axial direction N, and the first exterior member 30 is attached to the second exterior member 50 in the longitudinal axial direction N and the circumference as a result of abutting and contacting with the second exterior member 50. The protrusions 31 and 32 that are positioned in the direction C are provided.第１外装部材３０と、第２外装部材５０と、連結部Ｆにおいて外部に露出して配置された弾性変形自在な封止材４０と、第１外装部材３０に設けられ、内側方向ＫＩ及び長手軸方向Ｎにおいて封止材４０から離間する位置に配置され、第２外装部材５０への突き当て及び当接に伴い第２外装部材５０に対して第１外装部材３０を長手軸方向Ｎ及び周方向Ｃに位置決めする凸部３１、３２と、を具備する。
