| 摘要 |
<p>The cylindrical conveyor belt of the present invention is endless and comprises in transverse section a central conveyor portion and a pair of lug portions formed integrally at both side ends of the conveyor portion, the paired lug portions being joined and contacted with each other to render the conveyor portion cylindrical, the conveyor portion comprising in transverse section a most centrally positioned bottom portion which constitutes a bottom of the cylindrical shape, a pair of side portions positioned on both sides of the bottom portion and constituting side walls of the cylindrical shape, a pair of slant portions positioned outside the paired side portions and constituting slant upper walls of the cylindrical shape, and neck portions positioned between the paired slot portions and the lug portions and constituting an opening in the cylindrical shape, the rigidity of the neck portions in the transverse direction being smaller than that of the bottom, side, slant and lug portions in the transverse direction.</p> |
