Media conveying device and media processing device
A media processing device has a roller conveying section having an upper conveying guide that is electrically non-conductive, and forms one side surface of a bank note conveying path, and has an internal space; a frame that is electrically conductive and holds the upper conveying guide; a pushing spring that applies pushing force that urges pushing rollers toward driving rollers; and a supporting point shaft that is electrically conductive, and whose position in a front-rear direction is positioned by the upper conveying guide in vicinities of both end portions in a length direction of the supporting point shaft, and that supports the pushing spring in a vicinity of a central portion in the length direction, and that abuts laterally long upper end surfaces of the frame by receiving reaction force that arises in a direction of separating from the bank note conveying path in accordance with the pushing force.
1. A media conveying device comprising:
a conveying guide that is electrically non-conductive, that forms one side surface of a conveying path at which media are conveyed along a surface direction, and that has an internal space;
a frame that is electrically conductive and holds the conveying guide;
driving rollers;
pushing rollers provided in the internal space of the conveying guide, the pushing rollers conveying the media, by nipping the media between the pushing rollers and the driving rollers, which face the pushing rollers with the conveying path therebetween, and by rotating;
a pushing roller urging portion that applies a pushing force that urges the pushing rollers toward the driving rollers; and
a supporting point shaft that is electrically conductive, and whose position in a first direction, that is substantially orthogonal to a length direction of the supporting point shaft and a direction of the pushing force, is positioned by the conveying guide in vicinities of both end portions of the supporting point shaft in the length direction, the supporting point shaft supports the pushing roller urging portion in a vicinity of a central portion of the supporting point shaft in the length direction, and that abuts supporting point shaft abutment portions of the frame by receiving a reaction force that arises in a direction of separating from the conveying path in accordance with the pushing force.
2. The media conveying device of claim 1 , wherein:
the conveying guide, the pushing rollers, the pushing roller urging portion, and the supporting point shaft are connected together to form an integral unit and form a conveying unit that is mounted to the frame, and
the supporting point shaft is fixed to the conveying guide due to the vicinities of the both end portions in the length direction being inserted through guide hole portions that are formed in the conveying guide, and due to distal end side end portions of the supporting point shaft in the first direction and a direction opposite the first direction contacting the guide hole portions due to a distal end side end component of the reaction force.
3. The media conveying device of claim 2 , wherein, at the pushing roller urging portion, at a time when the conveying unit is mounted to the frame, the pushing force and the reaction force are stronger than in a state in which the conveying unit is a separate unit.
4. The media conveying device of claim 3 , wherein the pushing roller urging portion is a spring, and, at the time when the conveying unit is mounted to the frame, the pushing roller urging portion is compressed more than in the state in which the conveying unit is a separate unit.
5. The media conveying device of claim 4 , wherein the supporting point shaft abutment portions are positioned further toward distal end components of the pushing force than distal end side end surfaces which are the distal end side end surfaces, in a direction of the reaction force, of the guide hole portions of the conveying unit that is mounted to the frame.
6. The media conveying device of claim 5 , wherein the both end portions in the length direction of the supporting point shaft are inserted through frame hole portions that are formed in the frame, and, due to the reaction force, are pushed against distal end side end surfaces which are the distal end side end surfaces of the frame hole portions in the direction of the reaction force.
7. The media conveying device of claim 5 , wherein position restricting portions, that are the supporting point shaft abutment portions, that are electrically conductive and that project-out from the frame toward the supporting point shaft, are provided at a distal end side which is the distal end side of the supporting point shaft in the direction of the reaction force, and
the supporting point shaft is pushed, by the reaction force, against distal end side end surfaces which are the distal end side end surfaces of the position restricting portions in a direction of the pushing force.
8. The media conveying device of claim 1 , wherein the conveying guide and the frame are individual components such that the conveying guide and the frame are separable from each other.
9. A media processing device comprising:
an operation section that receives operations relating to a paper-sheet-like media;
a conveying path that conveys the media along a surface direction in accordance with operation of the operation section;
a conveying guide that is electrically non-conductive, and that forms one side surface of the conveying path, and that has an internal space;
a frame that is electrically conductive and holds the conveying guide;
driving rollers;
pushing rollers provided in the internal space of the conveying guide, the pushing rollers conveying the media, by nipping the media between the pushing rollers and the driving rollers, which face the pushing rollers with the conveying path therebetween, and by rotating;
a pushing roller urging portion that applies a pushing force that urges the pushing rollers toward the driving rollers; and
a supporting point shaft that is electrically conductive, and whose position in a direction, that is substantially orthogonal to a length direction of the supporting point shaft and a direction of the pushing force, is positioned by the conveying guide in vicinities of both end portions of the supporting point shaft in the length direction, the supporting point shaft supports the pushing roller urging portion in a vicinity of a central portion of the supporting point shaft in the length direction, and that abuts supporting point shaft abutment portions of the frame by receiving a reaction force that arises in a direction of separating from the conveying path in accordance with the pushing force.
10. The media processing device of claim 9 , wherein the conveying guide and the frame are individual components such that the conveying guide and the frame are separable from each other.
11. The media processing device of claim 9 , wherein:
the conveying guide, the pushing rollers, the pushing roller urging portion, and the supporting point shaft are connected together to form an integral unit and form a conveying unit that is mounted to the frame, and
the supporting point shaft is fixed to the conveying guide due to the vicinities of the both end portions in the length direction being inserted through guide hole portions that are formed in the conveying guide, and due to distal end side end portions of the supporting point shaft in said direction, which is substantially orthogonal to the length direction of the supporting point shaft and the direction of the pushing force, and a direction opposite said direction, which is substantially orthogonal to the length direction of the supporting point shaft and the direction of the pushing force, contacting the guide hole portions due to a distal end side end component of the reaction force.