Transporting device and image forming device

A transporting device comprising:

• a transport roller that transports a predetermined workpiece in a predetermined transport direction as that the workpiece passes through an image forming position where image forming processing is performed on the workpiece;
• a feeding unit including a first support shaft that extends in a width direction of the workpiece perpendicular to the transport direction and supports a first roll that is a rolled body of the workpiece that is to be subjected to the image forming processing, the feeding unit feeding out the workpiece from the first roll on the first support shaft to the transport roller;
• a take-up unit including a second support shaft that extends in the width direction of the work piece and supports a second roll that is a rolled body of the workpiece that has been subjected to the image forming processing, the take-up unit taking up the workpiece that has been fed out from the first roll and passed through the transport roller onto the second support shaft, the taken up workpiece forming a portion of the second roll;
• and
• a tension mechanism that gives tensional force to the workpiece between the first roll and the second roll, wherein
• the tension mechanism includes
• a tension roller having first and second ends spaced apart in an axial direction that extends in the width direction of the work piece and contacts the workpiece to give tensional force to the workpiece,
• a pair of supporting members each having a form of a plate vertical to the tension roller, and including a first supporting member that supports the first axial end of the tension roller, and a second supporting member that supports the second axial end of the tension roller, and
• a pair of tensional force adjusting members including a first tensional force adjusting member to which the first supporting member is fastened by fastening members at the first end of the tension roller, and a second tensional force adjusting member to which the second supporting member is fastened by fastening members at the second end of the tension roller, the tension roller being moved by pivoting the first and second tensional force adjusting members about each axis thereof extending in the width direction of the work piece to adjust the tensional force given to the workpiece, and
• the first supporting member and the first tensional force adjusting member are arranged in the axial direction of the tension roller, and the second supporting member and the second tensional force adjusting member are arranged in the axial direction of the tension roller, and each of the first supporting member, the first tensional force adjusting member, the second supporting member and the second tensional force adjusting member includes elongate insertion holes into which the fastening members are inserted, the insertion holes each extending in a direction intersecting the axial direction of the tension roller.