JPH0611994Y2 - Document feeder - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] In addition to a normal sheet-like original, the present invention corrects a continuous original such as a computer form or a large-sized original similar to the platen while correcting the original with a side guide. The present invention relates to a document feeder for feeding onto glass.

[Prior Art] As shown in Japanese Patent Publication No. 55-22222, a document feeding device which feeds a document while correcting it by side registration has a U-shaped side to align the document with a reference plane. A guide and a diagonal roller are used.

In such a document feeding device, a document feeding device adapted to feed a continuous original such as a computer form page by page in addition to a sheet-like ordinary document is shown in FIG.

That is, an ordinary sheet-shaped document 2 on the document table 1
Are separated one by one by a feeder unit (not shown),
It is sent to the document feed path 3, where it is pushed to one side of the reversing path 3 by the oblique feed roller 4 and sent while being side-registered. Then, it is fed onto the platen glass 7 by the transport roll 5 and the platen belt 6.

On the other hand, the continuous original 2'is fed onto the platen glass 7 by a feed-in chute 8 which is provided so as to merge with the outlet of the reversing passage 3.

The side guide 9 of the document feeding path 3 in the above-described configuration is as shown in FIGS. 5 and 6, and has a U-shaped groove over its entire length, and the side edge of the document is fitted in this groove. By doing so, side registration is performed.

[Problems to be solved by the invention]

The side guide 9 in the above-mentioned conventional document feeder has a groove shape with a U-shaped cross section over the entire length thereof, and since the side guide 9 is fixed to the frame of the document feeder, the document is not jammed when a paper jam occurs. When the document feeder 10 is opened as shown in FIG. 7 with the document in the feed path 3, one side of the document 2 or 2'is lifted while being sandwiched between the side guides 9, and the document 2 , 2 '
Sometimes hurt. When it is desired to copy the continuous document 2'from the middle, the document 2'is set on the platen glass 7 with the document feeder 10 opened, and then the document feeder 10 is closed, as shown in FIG. ,
In some cases, the side guides 9 pinch one side of the documents 2 and 2 ', making it impossible to feed them.

[Means and Actions for Solving Problems]

The present invention has been conceived in view of the above, and even if the document feeder is opened and closed while the document is being fed by the document feeder and the document is in the feed-in chute, the side guide does not move relative to the document. It does not become an obstacle, it can prevent the document from being damaged by opening and closing the document feeder during the paper jam clearance process in the above-mentioned condition, and the continuous document will be caught in the side guide even when copying it from the middle. The present invention is intended to provide a document feeding device in which the guide portion is provided in such a manner that the guide portion can be rotated in the front-rear direction, and the guide portion is provided on the upstream side in the feeding direction and on the rotation base side. In the document feeding apparatus provided with the groove-shaped side guide 12, the lower guide of the guide portion of the side guide from the continuous document insertion portion to the conveyance outlet facing the platen glass. The lower part of the guide is L-shaped in cross section, and the lower side is open. Even if the document feeder is opened while there is a document in the lower guide part, the side guide obstructs the document. Be promoted without becoming.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. In this embodiment, the same components as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted.

The reversing passage portion of the side guide 12 of the document feeding path 3 provided on the upstream side of the document feeding direction of the document feeding device 10 rotatable in the front-rear direction and on the rotation base side has a U-shaped cross section as in the conventional case. Groove-shaped, but continuous paper insertion part 12a
As shown in FIG. 2, the cross-sectional shape of the lower guide portion from the sheet to the transport outlet 12b facing the platen glass 7 is L-shaped, and the guide side wall for the originals 2 and 2'is only on the upper side. Yes, the bottom is open. The lower open portion is inclined inward by θ. 13 is a shoot.

In the above-mentioned configuration, the originals 2 to which the lower guide section is fed
2'is the feed-in shoot 8 as shown in FIG.
The one side end of the inclined conveyance roll 5 is pressed by the side guide 12 and is fed while being side-registered.

At this time, since the lower open portion of the side guide 12 is inclined inward, even if the originals 2 and 2'are pushed to the side guide 12 by the transport roll 5, the originals 2 and 2'fall downward. Never.

Further, when the documents 2 and 2 ′ are jammed and the documents 2 and 2 ′ are on the feed-in chute 8, the document feeding device 10
Since the lower side of the side guide 12 is opened even when the document is opened upward, the side guide 12 does not become an obstacle, and the document is not damaged during the paper jam clearance processing with the document feeder 10 opened. .

[Effect of device]

According to the present invention, even when the document feeding device 10 is opened and closed while the documents 2 and 2'are in the feed-in chute 8 during the document feeding operation of the document feeding device 10, the side guides 12 can be used.
Does not obstruct the originals 2 and 2 ', and can prevent the originals from being damaged due to the opening and closing of the original feeding device 10 during the paper jam removing process in the above state. Further, even when the continuous original 2'is copied from the middle, the continuous original 2'is not caught in the side guide 12.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention.
FIG. 4 is a side view of the side guide portion, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, FIG. 3 is an explanatory view of the action, and FIG. 4 is a document feeding path diagram of a document feeding device. 5 is a front view of a conventional side guide portion, FIG. 6 is a cross-sectional arrow view taken along the line VI-VI of FIG. 5, and FIGS. 7 and 8 are explanatory views of problems in the conventional example. is there. Reference numerals 2 and 2'are originals, 7 is a platen glass, 12 is a side guide, 12a is a continuous original insertion portion, and 12b is a conveyance exit.

Claims (1)

[Scope of utility model registration request] 1. A document feeder which is rotatable in the front-rear direction, and is provided with a side guide 12 having a guide portion in the shape of a groove having a U-shaped cross section on the upstream side in the feeding direction and on the rotation base side. Of the guide parts of the side guide 12, the lower guide part from the continuous document insertion part 12a to the transport outlet 12b facing the platen glass 7 has an L-shaped cross section and the lower side is opened. .