Heat-riveting device

The heat-riveting device (10) is inserted into one or more holes (22) penetrating a main plate (14) having a substantially conical hollow portion (12), whereby one or more bosses (24) of a blade (16)protruding from an inner peripheral surface (14a) of the main plate (14) toward the hollow portion (12) are melted so as to join the main plate (14) and the blade (16). A heat chip (34) of the heat-riveting device (10) has a substantially conical hollow main body portion (44), an outer peripheral surface (44a) of which conforms to the inner peripheral surface (14a) of the main plate (14). On the outer peripheral surface (44a) of the main body portion (44), a convex portion (52) protruding toward the vicinity of the holes (22) of the inner peripheral surface (14a) of the main plate (14) is provided. 热铆接装置(10)通过使叶片(16)的一个以上的接合突起(24)熔融来使主板(14)和叶片(16)相接合，其中，所述主板(14)具有大致锥体形状的中空部(12)，所述叶片(16)通过被贯插于贯穿主板(14)的一个以上的孔(22)而从主板(14)的内周面(14a)向中空部(12)突出。热铆接装置(10)所具有的加热端头(34)具有外周面(44a)沿主板(14)的内周面(14a)的中空的大致锥体形状的主体部(44)。在主体部(44)的外周