Abstract: The present invention can transfer a belt member on a supply conveyor onto a building drum from an inclined distal end portion while holding on both side edge portions in the width direction thereof and can efficiently adhere the belt member according to the rotation of the building drum. As a means for such building, using a supply conveyor (5) which places the belt member (B1) thereon and a hand device (10) which includes holding members (17a), (17b) having press plates (16a), (16b) extending in the feeding direction of the supply conveyor.

Abstract: A tire ply forming apparatus includes: a roller mechanism for unwinding a narrow ribbon-shaped ply cord from a roll of the ply cord as conveying the unwound ply cord; a cutter for cutting the unwound ply cord into the strip of a length conforming to a tire width; a bonding drum on which the strips are sequentially bonded to each other along a predetermined direction and at a predetermined pitch; transfer device for transporting the strip from a cutting position to the bonding drum; controller for driving-wise controlling the bonding drum to permit the strips to be bonded to each other in a manner that the strips are overlapped with each other to form a predetermined amount of overlap at their longitudinal edges; and a pressure roller for pressing down on the overlap portion of the strips.