| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce wear of the edges of an external heat belt 105 in the width direction by use of a structure with a belt restricting member 207 that restricts movement of the external heat belt 105 in the width direction thereof by contacting the edges of the external heat belt 105 in the width direction thereof. <P>SOLUTION: In a non-contact area E where the external heat belt 105 is not wound around a second tension roller 104, a relative speed occurs between the external heat belt 105 and the belt restricting member 207. To prevent this, an inclination part 207d is provided on the outside diameter side of the ring-like belt restricting member 207 so as to incline away from the edges of the external heat belt 105 in the width direction thereof toward the outside in a radial direction thereof. This reduces the area where the external heat belt 105 and belt restricting member 207 slide one over the other, and reduces wear of the external heat belt 105. <P>COPYRIGHT: (C)2013,JPO&INPIT |
