JPH0572847U - Conveyance guide mechanism for paper sheets - Google Patents

Abstract

(57) [Summary] [Object] To provide a paper sheet conveyance guide mechanism capable of reducing processing cost and easily removing jammed paper. In a paper sheet conveyance guide mechanism that guides the paper sheet 14 by guide members arranged above and below with the conveyance path 2 of the paper sheet 14 interposed therebetween, a plurality of paper sheets extending in parallel with the conveyance direction of the paper sheet 14 are provided. The guide ribs 21 and 22 are provided at predetermined intervals in the width direction of the paper sheet 14.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a conveyance guide mechanism for a sheet (print medium) conveyed on a conveyance path by a conveyance means such as a conveyance roller.

[0002]

[Prior Art]

 FIG. 1 is a configuration diagram showing an example of a transport system of a printer. Paper sheets carried in from an inserter (not shown) are sent out from the entrance conveyance path 1 having a conveyance roller to the main conveyance path 2, printed by the printing section 3 and stopped at the temporary stop section 4 in front of the hopper 5. After that, it is conveyed in the opposite direction and is stacked on a stacker (not shown) via the exit conveyance path 6. Paper sheets before being issued are stored in the hopper 5, and the paper sheets delivered from the hopper are issued to the stacker via the main conveyance path 2 and the exit conveyance path 6. Reference numeral 7 is a wing for switching the transport path, 8 is a transport motor, and 9 and 10 are a reading unit and a writing unit, respectively.

A guide plate as shown in FIG. 2 is provided so as to sandwich the front and back surfaces of the paper sheets on the linear conveyance paths such as the entrance conveyance path 1, the main conveyance path 2 and the exit conveyance path 5. As shown in FIG. 2, since the upper guide plate 11 and the lower guide plate 12 are flat over the entire width direction of the paper sheet, the upper and lower conveying rollers 13 (the upper conveying roller is omitted in FIG. 2). A plurality of cutouts 11a and 12a for inserting the above are provided facing the conveyance roller 13.

As shown in FIG. 1, the main transport path 2 has upper and lower corner portions 2a and 2b. FIG. 3 is a vertical sectional view of the corner portion 2b, and FIG. 4 is a sectional view taken along the line AA of FIG. 3. In such a corner portion, the upper guide plate 11 and the lower guide plate 12 are both It is formed by bending along the carrying path 2. 14 is a paper sheet.

[0005]

As described above, the conventional paper sheet transport mechanism is provided with the guide plate that covers the entire widthwise direction of the paper sheet, in other words, the entire transport path. There was a problem that it was difficult to remove the jammed paper in a device or part (for example, a corner part) having a structure in which the guide plate could not be opened. In addition, a large number of notches (as many as the number of the transport rollers) have to be formed to expose the transport rollers to the transport path, which causes a problem of processing cost.

The present invention has been made based on such a background, and is a mechanism for introducing a paper sheet, which has a simple shape to reduce the cost and can easily remove jammed paper. The purpose is to provide.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the present invention, in a paper sheet conveyance guide mechanism that guides paper sheets with guide members arranged above and below with a paper sheet conveyance path interposed therebetween, A plurality of guide ribs extending parallel to the conveying direction are provided at predetermined intervals in the width direction of the paper sheet.

[0008]

[Action]

 The plurality of guide ribs extend in the transport direction and are provided at predetermined intervals in the width direction of the paper sheet. Therefore, the conveying roller can be arranged between the adjacent guide ribs, and it is not necessary to form a notch for inserting the conveying roller in the guide rib itself. Further, when a paper sheet jam occurs on the transport path, the jam paper can be removed from between the guide ribs.

[0009]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. The same members as those in the conventional example are designated by the same reference numerals. FIG. 5 is a side view of the corner portion of the transport path, and FIG. 6 is a sectional view taken along the line BB of FIG.

At the corner portion of the conveying path 2 (corner portion 2b in FIG. 1 in this embodiment), three guide ribs 21 sandwiching the paper sheet 14 and extending parallel to the traveling direction of the paper sheet 14, 22 are provided so as to face each other in the width direction of the paper sheet with a predetermined space therebetween, and the pair of transport rollers 13 are arranged between them (see FIG. 6). The paper sheet 14 is conveyed by the pair of conveying rollers 13 as in the conventional apparatus while the position is regulated and guided by the upper and lower guide ribs 21 and 22.

The guide ribs 21 and 22 are not guide members having an area like the conventional guide plates 11 and 12, but are weak in strength. Therefore, as is clear from FIGS. (For example, about 3 mm) so as not to bend in the vertical direction.

As described above, the transport roller pair 13 is arranged between the adjacent guide ribs 21, 21 and 22, 22, and the guide ribs 21, 22 themselves have a cutout portion for the transport roller pair 13. Since it is not necessary to provide the guide ribs 21 and 22, the guide ribs 21 and 22 have a very simple shape, and are composed of a strip-shaped member made of, for example, plastic or metal. A rod-shaped or linear member such as a wire may be used as long as it has a strength that does not cause slack when the paper sheet is transported. Further, the distance between the adjacent guide ribs is set to a distance that can be removed from the distance when the paper sheet 14 is jammed at that position.

[0013]

[Effect of the device]

 As described above, according to the first aspect of the invention, since the plurality of guide ribs guide the conveyance of the paper sheet, the guide ribs are arranged by arranging the conveyance rollers between the adjacent guide ribs. Since it is not necessary to provide a notch in itself, the processing cost can be reduced, and the jammed paper can be easily removed from between the guide ribs.

According to the second aspect of the invention, in addition to the above effects, it is possible to increase the strength of the guide ribs and ensure the reliability when the paper sheet is conveyed.

According to the invention of claim 3, the guide rib is provided at the corner portion where jam easily occurs, whereby the workability of removing jammed paper can be further improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram illustrating an example of a transport system of a printer.

FIG. 2 is an exploded perspective view of a guide plate that constitutes a conventional paper sheet conveyance guide mechanism.

FIG. 3 is a vertical sectional view of a conventional conveyance guide mechanism at a corner portion of a conveyance path.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a side view of a paper sheet conveyance guide mechanism according to an embodiment of the present invention.

6 is a sectional view taken along line BB of FIG.

[Explanation of symbols]

 2 Conveying paths 2a, 2b Corner portion 13 Conveying roller 14 Paper sheets 21, 22 Guide rib

Claims (3)

[Scope of utility model registration request] 1. A paper sheet conveyance guide mechanism for guiding paper sheets by guide members arranged above and below with a paper sheet conveyance path interposed therebetween, and a plurality of guides extending parallel to the paper sheet conveyance direction. A paper sheet conveyance guide mechanism, characterized in that ribs are provided at predetermined intervals in the width direction of the paper sheet. 2. The paper sheet conveyance guide mechanism according to claim 1, wherein the guide rib has an appropriate thickness such that the guide rib does not bend in the vertical direction. 3. The paper sheet conveyance guide mechanism according to claim 1, wherein the rib is provided at a corner portion of the conveyance path.