Feeding device

Abstract

A feeding device includes a rotation shaft, a feeding roller that includes a through-hole and that is attached to an attachment position of the rotation shaft by moving along the rotation shaft from one end side of the through-hole through the rotation shaft in a case of attachment, and a stop mechanism that stops movement of the feeding roller before the feeding roller moves to the attachment position in a case of being moved along the rotation shaft from the other end side of the through-hole of the feeding roller through the rotation shaft.

What is claimed is: 
     
         1 . A feeding device comprising:
 a rotation shaft;   a feeding roller that includes a through-hole and that is attached to an attachment position of the rotation shaft by moving along the rotation shaft from one end side of the through-hole through the rotation shaft in a case of attachment; and   a stop mechanism that stops movement of the feeding roller before the feeding roller moves to the attachment position in a case of being moved along the rotation shaft from the other end side of the through-hole of the feeding roller through the rotation shaft.   
     
     
         2 . The feeding device according to  claim 1 ,
 wherein the feeding roller includes a protrusion portion extending in an axial direction of the rotation shaft, and   the rotation shaft has a first groove that accommodates the protrusion portion in a case where the feeding roller is attached to the attachment position of the rotation shaft.   
     
     
         3 . The feeding device according to  claim 2 ,
 wherein the rotation shaft includes a second groove on a rear side of the first groove, and   the stop mechanism stops the movement of the feeding roller as the second groove restricts movement of the protrusion portion.   
     
     
         4 . The feeding device according to  claim 3 ,
 wherein the protrusion portion protrudes from an end surface of the feeding roller, which is the other end side of the through-hole, and extends in the axial direction of the rotation shaft.   
     
     
         5 . The feeding device according to  claim 4 ,
 wherein the protrusion portion comes into contact with the rotation shaft in a case of moving along the rotation shaft from the other end side of the through-hole of the feeding roller through the rotation shaft.   
     
     
         6 . The feeding device according to  claim 3 ,
 wherein the second groove is disposed at a position where the movement of the protrusion portion is restricted before the rotation shaft penetrates the through-hole in a case where the feeding roller is moved along the rotation shaft from the other end side of the through-hole of the feeding roller through the rotation shaft.   
     
     
         7 . The feeding device according to  claim 6 ,
 wherein a housing that stores the rotation shaft and the feeding roller is provided with an openable and closable cover, and   the cover is not closable in a state where the movement of the protrusion portion is restricted by the second groove.   
     
     
         8 . The feeding device according to  claim 3 ,
 wherein the second groove becomes deeper toward a rear side from an end portion side of the rotation shaft in the axial direction of the rotation shaft.   
     
     
         9 . The feeding device according to  claim 8 ,
 wherein the second groove includes an inclined surface that is continuous from a peripheral surface of the rotation shaft on an end portion side of the second groove in the axial direction and a perpendicular surface that extends in a radial direction of the rotation shaft on the rear side in the axial direction.