| 摘要 |
PURPOSE:To facilitate the continuous formation remarkably by making a connection part of the flexible synthetic resin having the compatibility with the display forming resin and a high softening temperature, and forming the thickness of the joint part smaller than that of a plate-shape main frame, and extending the joint part endless through the plate-shape main frame. CONSTITUTION:Two cables of connection parts 6 are drawn from a reel 14 by one section in parallel with each other, and are placed on the fixed side 10b of a mold 10, and are covered with the movable side 10a of the mold 10. At this stage, positioning is performed so that the connection parts 6 are fitted in shallow groove shape recessed parts 13 of the movable side 10a tightly. In a cavity 11 forming a display H, since a fixed side cavity parts 11b and a movable side cavity 11a correspond to each other, cores 12 for forming projections 2 of the back surface side of the plate-shape main frame 1 are inserted and disconnected in response to the formation cycle. The operation for injecting the melted resin into the cavity of one section B1 is repeated to manufacture the endless belt body. |
