Sheet transport device and image forming apparatus

Abstract

The second unit prevents interference between the rotating entrance guide member and the upper guide section, and also allows for precise positioning of the roller and the entrance guide member. [Solution] The reversing module 6000 has a restricting section 6220a and a restricting section 6220b which is closer to the pivot axis 6101 than the restricting section 6220a in the width direction perpendicular to the transport direction T. One of the restricting sections 6220a and 6220b rotates in contact with the abutment section 6130 as the upper door unit 6200 rotates, and also contacts the entrance guide member 210 and starts the rotation of the entrance guide member 210 in accordance with the timing when the other of the restricting sections 6220a and 6220b starts the rotation of the entrance guide member 210.

Claims

1. The first unit and A second unit is attached to the first unit so as to be rotatable about a pivot axis parallel to the sheet transport direction between a closed position that forms a transport path together with the first unit and an open position that opens the transport path, It has, The first unit is, A pair of rollers that grip and transport the sheet, A lower guide portion provided on the upstream side of the pair of rollers in the conveying direction, A rotatable entrance guide member that forms the transport path for guiding the sheet to the pair of rollers, opposite the lower guide portion, The stopper part, Equipped with, The second unit is, When the second unit is in the closed position, it forms the transport path that guides the sheet to the entrance guide member, facing the lower guide portion, and when the second unit rotates from the closed position to the open position, the upper guide portion separates from the lower guide portion and opens the transport path, A restricting unit that rotates the entrance guide member to a predetermined position in accordance with the rotational movement of the second unit from the open position to the closed position, Equipped with, The aforementioned regulatory body, It consists of a first restricting section and a second restricting section that is closer to the pivot axis than the first restricting section in the width direction perpendicular to the conveying direction, One of the first regulating section and the second regulating section is As the second unit rotates, it comes into contact with the abutment portion and rotates, and in accordance with the timing at which the other of the first and second restricting portions initiates the rotation of the inlet guide member, it comes into contact with the inlet guide member and initiates the rotation of the inlet guide member. A sheet conveying device characterized by the following features.

2. The aforementioned one is, The second regulatory section is as follows: The second regulating section is, The first restricting part causes the inlet guide member to begin rotating, and then contacts the inlet guide member to begin rotating. The sheet conveying device according to feature 1.

3. The second regulating section is, It comprises a first contact portion that abuts against the abutment portion at one end in the conveying direction, and a second contact portion that abuts against the entrance guide member at the other end in the conveying direction, and rotates about a pivot center between the first contact portion and the second contact portion. The sheet conveying device according to feature 2.

4. When the second unit rotates from the open position to the closed position, the distance traveled by the second contact portion is equal to the distance traveled by the first restricting portion. The sheet conveying device according to feature 3.

5. When the second unit rotates from the open position to the closed position, the distance traveled by the second contact portion is greater than the distance traveled by the center of rotation. The sheet conveying device according to feature 3.

6. The first regulating unit and the second regulating unit are, The second unit is provided at both ends in the width direction, A sheet conveying device according to any one of claims 1 to 5.

7. A sheet conveying device according to any one of claims 1 to 5, Image forming means for forming an image on a sheet, It has, The aforementioned sheet transport device, The sheet on which the image has been formed by the image forming means is transported. An image forming apparatus characterized by the following features.

Images