| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a winding core for a web capable of reducing the influence of the surface pressure of a wound-up web and suppressing the cost increase of the winding core. <P>SOLUTION: The winding core for the web includes a cylindrical trunk with an inner shell and an outer shell surrounding an outer periphery of the inner shell and connecting parts connecting the inner shell and the outer shell. The connecting parts are arranged between the inner shell and the outer shell and only at both ends in the axial direction of the trunk. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
