The functional component is being acted on when tire and ground face contact in order to provide functional component attachment base with high-durability and inertia force, and when tire leaves ground connection and impact force acts on functional component attachment base square protrusion on a passage, the functional component attachment base (1) is formed in from sizing material, the inner surface of tire (70) is attached to so that the tire that functional component (29) extends to inner surface (70) can be attached, it is characterized in that, it is provided with the functional component (29) of mating groove (2) for being arranged in accessory functions component side attachment unit (3). The opening (3) of opening diameter enters assembly recess portion (2) and forms the outer surface and functional element side attachment unit (peripheral surface (31)) that there is functional element side attachment unit inner surface assembly recess (2) (inner peripheral wall (9)) of the smaller size compared to maximum gauge to form a kind of suitable fitting surface, bottom installation recess (2) is formed as uneven part (half-circle projection (5, 6) and partition groove (8)) which is suitble to uneven part (half-round recessed (34, 35) and partition protrusion (33)) be formed in function element side attachment unit (30).
展开▼
