Sufficient strength of a joint portion is secured in a tire configured by joining together plural tire structuring members formed from a thermoplastic material. A welding thermoplastic material 43 that has been melted is extruded towards joining locations on two tire halves 17A formed from a first thermoplastic material that have been aligned so as to face each other and abut, such that the one tire half 17A and the other tire half 17A are welded together with the welding thermoplastic material 43. Degradation of the thermoplastic material forming the tire halves 17A is suppressed since the tire halves 17A are not themselves melted, and sufficient strength of the joint portion is secured.