Sheet conveying apparatus and image forming system having the same

Abstract

It is an object to provide a sheet conveying apparatus excellent in productivity, and a sheet conveying apparatus is provided with a sheet conveying section for conveying a sheet in a predetermined conveyance direction, a placement portion to place sheets conveyed by the sheet conveying section, a contact portion for coming into contact with an upstream side end portion in the conveyance direction of placed sheets placed in the placement portion, a sheet discharge section for shifting the contact portion to the downstream side in the conveyance direction and thereby discharging the placed sheets from the placement portion, and a sheet conveyance guide portion for supporting a front end of a next sheet conveyed to the placement portion by the sheet conveying section on the upstream side of the contact portion in the conveyance direction, where the sheet conveyance guide portion is provided with an inclined face for supporting the front end of the next sheet discharged to the placement portion.

1 . A sheet conveying apparatus comprising:
 a sheet conveying section adapted to convey a sheet in a predetermined conveyance direction;   a placement portion adapted to place the sheet conveyed by the sheet conveying section;   a contact portion adapted to come into contact with an upstream side end portion in the conveyance direction of a placed sheet placed in the placement portion;   a sheet discharge section adapted to shift the contact portion to a downstream side in the conveyance direction and thereby discharge the placed sheet from the placement portion; and   a sheet conveyance guide portion adapted to support a front end of a next sheet conveyed to the placement portion by the sheet conveying section, on an upstream side of the contact portion in the conveyance direction, wherein the sheet conveyance guide portion is provided with an inclined face for supporting the front end of the next sheet discharged to the placement portion.   
     
     
         2 . The sheet conveying apparatus according to  claim 1 , wherein the contact portion is attached to an endless belt shifting along the conveyance direction, and is provided with a rotation shaft for supporting the sheet conveyance guide portion rotatably, and the sheet conveyance guide portion rotates by a shift of the endless belt. 
     
     
         3 . The sheet conveying apparatus according to  claim 2 , wherein the endless belt is provided substantially in the same plane as the placement portion, and in a position for supporting a front end of the sheet discharged from the sheet conveying section, an upstream side end portion of the sheet conveyance guide portion in the sheet conveyance direction is provided to be able to overlap so as to position below the endless belt. 
     
     
         4 . The sheet conveying apparatus according to  claim 1 , wherein the sheet conveyance guide portion is attached to the contact portion rotatably. 
     
     
         5 . The sheet conveying apparatus according to  claim 2 , wherein the sheet conveyance guide portion is provided on the upstream side of the contact portion of the endless belt in the conveyance direction. 
     
     
         6 . A sheet processing apparatus provided with the sheet conveying apparatus according to  claim 1 . 
     
     
         7 . An image forming system provided with the sheet processing apparatus according to  claim 6 .