JPH026023Y2 - - Google Patents

Description

[Detailed description of the invention] Technical field This invention is a document insertion table that is connected to the document insertion slot of a copying machine and is foldable around an axis perpendicular to the document insertion direction. The present invention relates to a side guide for document insertion that is displaceable in a right angle direction.

BACKGROUND OF THE INVENTION A manual document insertion table is often provided directly above the transfer paper tray or automatic document feeder of an electrophotographic copying machine. In this case, it is necessary to make the manual document insertion table foldable in order to facilitate setting the transfer paper or document on the tray and clearing paper jams.

In FIG. 1, directly above the automatic document feeder 100,
An example is shown in which a manual manuscript insertion table 8 is provided, and the manuscript insertion table 8 is connected to an axis 7 perpendicular to the manuscript insertion direction.
It can be opened and closed by displacing the portion outward from the center between the open position shown by a solid line in the figure and the closed position shown by a chain line 8' in the figure. by the way,
In the document insertion table, one side edge of the document is generally inserted along the side guide provided on the table so that it matches the conveyance standard, and if the conveyance standard is the center standard, the side guide will align with the document size. Accordingly, it is necessary to translate it in a direction perpendicular to the insertion direction.

If the document insertion table 8 is foldable as in the example shown in FIG.
If the table 8 is extended to the rear of the table 8, it will not be possible to fold the table 8 due to its rigidity. Also, if side guides are provided as separate members on the front and back sides of the folding shaft 7, 2
It is troublesome because the two side guides have to be displaced separately. Therefore, in conventional folding type document insertion tables, the document insertion side guides are usually provided only up to the vicinity of the folding fulcrum.

However, in the case of a moving document copying machine, the document must be manually inserted quite far into the copy machine in order to correct document skew. When inserting a document, as shown in FIG. 1, the operator manually slides the document 1 on the table along the side guide 9, and when the leading edge of the document is detected by the sensor 2, the pinch roller 3 is driven. The document 1 is separated from the roller 4 and passes through the gap.
The tip abuts against the stopper 5. As shown in FIG. 2, a plurality of sensors 6 are arranged centrally along the stopper 5 to determine the presence or absence of skew, and if the skew falls within the allowable range, the pinch roller 3 moves to the drive roller. You can press it against the handle and release it. Note that there are cases where a registration roller is used instead of a stopper to correct the skew. However, in any case, it is still necessary to manually feed the document a considerable distance, and the smaller the document size, the further the side guide is required. Therefore, with conventional folding document insertion tables where the side guides end before the folding axis, when inserting a small-sized document, most of the document side edge comes off the side guide, making it difficult to insert the document in the correct position. There was a drawback.

Purpose This invention eliminates the above-mentioned drawbacks of the conventional folding document insertion table, and provides a folding shaft that extends far back from the folding axis so that there is no problem in folding the table and moving the side guide. The purpose is to provide a side guide.

Configuration The side guide for document insertion according to the present invention is integrally constructed across the front and rear of the folding fulcrum.
It consists of a flat surface parallel to the surface of the document insertion table, and a document guide section extending perpendicularly to the flat surface in the document insertion direction on one side edge of the table. The vicinity of the folding axis of the insertion table is made of flexible material, and
The document guide section is characterized in that it is provided in front and behind the folding axis of the document insertion table except for the vicinity thereof.

Hereinafter, the present invention will be explained in detail based on embodiments shown in the drawings.

FIG. 3 is a diagram showing a state in which a foldable document insertion table equipped with a side guide device for document insertion according to an embodiment of the present invention is attached to the copying machine described in FIG. 1, and FIG. FIG. 5 is a vertical sectional view of the table and an exploded perspective view of the side guide device.

As shown in FIGS. 4 and 5, the side guide 9
The front part 9a and the back part 9b are made of separate members and are integrally connected.

The front end of the side guide member 9a on the near side is shaped like a
The Z-shaped member 11 connected to the Z-shaped member 11 slidably wraps around the downwardly bent flange 8b of the front end of the document insertion table 8 and the front end of the flat part 8a. A suitable sliding member 12b with a small coefficient of friction is provided between the
Further, a similar sliding member 12a is interposed between the flat part 8a, and a leaf spring 10 is inserted between the member 11 and the lower surface of the original insertion table flat part 8a, so that the side guide member 9a is connected to the original insertion table. 8, in the direction perpendicular to the original insertion direction, smoothly and without any play.
It is now possible to move in parallel. One side edge of the side guide member 9a is bent upward at a right angle to form a document guide portion 9a _-1 . Flat part 9 _a- of the front side guide member 9a
There is a back side guide member 9 on the bottom surface of the back end of _2.
The plane portion 9 _b-2 of b is integrally joined by means such as welding or adhesion. The rear side guide 9b also has a guide portion 9 b-1 on the same side edge as the guide portion 9 _a-1 of the front side guide member 9a in the same plane as the guide portion 9 _{a -1 of} the front side guide member. is provided. The above two side guide members 9a, 9b
The connection position is on the front side of the folding shaft 7 of the document insertion table 8, and the portion corresponding to the vicinity of the folding shaft 7 is within the range of the rear side guide member 9b.

The front side guide member 9a is made of a rigid material such as aluminum or hard plastic, while the rear side guide member 9b is made of a flexible material such as a leaf spring or a polyester sheet. Further, the guide portion 9 _b-1 is not provided in the area of the back side guide member 9b corresponding to the vicinity of the folding shaft 7 of the document insertion table 8.

Therefore, when the document insertion table 8 is rotated about the shaft 7 to the closed position shown by the chain line 8' in FIG. Only part 9 _b-2 is easily elastically deformed and does not pose any problem in opening and closing the document insertion table 8. Moreover, since the side guide 9 _b-1 is provided all the way to the back, it is possible to guide accurately even when inserting a small-sized original.

Note that since the rear side guide member 9b is bent repeatedly, the paint is likely to peel off, and it is necessary to make it slippery, so a resin paint is appropriate. Alternatively, it may be made of synthetic resin that does not require painting.

It is also possible to make the side guide member as a single member from a flexible material without dividing it into the front side and the back side, and it is also possible to make the side guide member as a single member from a flexible material. It is also possible to make it from flexible material.

Effects As described above, according to the present invention, the foldable document insertion table can be provided with the document insertion side guide to the back side of the folding shaft, so that small-sized documents can be inserted accurately and easily.

[Brief explanation of the drawing]

FIG. 1 shows an example of a document insertion side guide provided on a conventional foldable document insertion table, a longitudinal sectional view illustrating the document insertion operation, and a second
1 is a schematic diagram showing an example of the skew detection means when a document is inserted in FIG. FIG. 4 is a longitudinal sectional view of the document insertion table including the document insertion side guide, and FIG. 5 is an exploded perspective view of the document insertion side guide. DESCRIPTION OF SYMBOLS 1...Original, 7...Document insertion table folding shaft, 8...Document insertion table, 9...Document insertion side guide device, 9a _-1 , _9b-1 ...Plane part,
9 _a-2 , 9 _b-2 ...Manuscript guide section.

Claims (1)

[Scope of utility model registration request] A side guide for document insertion is connected to the document insertion slot of a copying machine and is provided on a document insertion table that can be folded around an axis perpendicular to the document insertion direction, and is movable in a direction perpendicular to the document insertion direction according to the document size. In the apparatus, the side guide device for document insertion is integrally constructed across the front and rear of the folding shaft, and includes a flat portion along and parallel to the surface of the document insertion table, and the flat portion on one side edge thereof. The planar part is made of flexible material at least near the folding axis of the document insertion table; A side guide device for inserting a document, characterized in that the side guide device is provided before and after the folding shaft except for the vicinity of the folding shaft.