JPH0812097A - Sheet placing mechanism - Google Patents

Abstract

PURPOSE:To quickly and easily perform the position adjusting works for a guide means and a holding member corresponding to the sheets to be loaded which may appear in different sizes. CONSTITUTION:A guide means 28 comprises an approx. L-form supporting plate 30 to align the tails of document sheets 16 stacked on a placing table 26 made of a magnetic substance, a weight 32 to hold the tails of the stacked document sheets 16 in the plumb direction, and a magnet 34 which attracts the guide means 28 and holds in any position on the table 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet body mounting mechanism for accommodating a plurality of sheet bodies by stacking them.

[0002]

2. Description of the Related Art For example, in an image reading apparatus, read originals (sheets) stacked on an original placing section are taken out one by one through an original conveying mechanism and conveyed and positioned at the image reading section. After the image information carried on the read document is read by the image reading unit, it is discharged to the document discharging unit.

Similarly, in an image recording apparatus, an unexposed film (sheet body) which is usually laminated on a film mounting portion is used.
Are taken out one by one through the film transport mechanism and are transported and positioned to the image recording section, and after the desired image is recorded on the unexposed film in this image recording section, the film after the recording is transferred to the film discharging section. It is configured to be discharged to.

In this case, it is necessary to align and stack sheet bodies such as read originals and unexposed film on a placing table provided on the original placing portion and the film placing portion so as to be able to move up and down.
Therefore, it is conceivable to dispose a guide member on the rear end side of the sheet body in the take-out direction and forcibly align the sheet body with this guide member.

[0005]

By the way, this kind of sheet body has various different sizes depending on the use and the like. For example, there are cases where sheet bodies of A5 to B3 size are selectively used. is there. Therefore, it is necessary to change the setting of the position of the guide member (guide means) corresponding to the sheet body of each size. For example, when the guide member is screwed to the mounting table, the guide member The work of changing the position of becomes complicated.

Further, a pressing member for pressing in the vertical direction is provided on the rear end side of the sheet body in the take-out direction so as to prevent the next sheet body from being taken out when the uppermost sheet body is taken out. ing. Therefore, when the size of the sheet body is changed, in addition to the work of changing the position of the guide member, the work of changing the position of the pressing member is also necessary, and this kind of work is complicated and time-consuming. Has been done.

The present invention is intended to solve this type of problem, and is capable of quickly and easily carrying out position adjustment work of guide means and pressing members corresponding to various size sheet bodies. The purpose is to provide a mechanism.

[0008]

In order to achieve the above-mentioned object, the present invention is a sheet body mounting mechanism for stacking and accommodating a plurality of sheet bodies, wherein the plurality of sheet bodies are provided. Are stacked, and a magnetic mounting table, and a guide means for aligning the take-out direction rear end side of the sheet body stacked on the mounting table, the guide means, the guide means of the stacked sheet body. It is characterized in that it has a pressing member for pressing and holding the rear end side in the vertical direction, and a magnet for adsorbing and holding the guide means at an arbitrary position of the mounting table.

[0009]

In the sheet body mounting mechanism according to the present invention, when the sheet bodies of a predetermined size are stacked on the mounting table, the position of the guide means is changed according to the size of the sheet body.
Here, the guide means has a magnet and the mounting table has magnetism, and the guide means is attracted and held on the mounting table only by disposing the guide means at an arbitrary position of the mounting table. be able to. Therefore, the position adjustment work of the guide means can be performed quickly and easily. Moreover, the guide means is provided with a pressing member that presses and holds the rear end side of the sheet body in the vertical direction, and the position adjustment work of the pressing member is simultaneously performed by adjusting the position of the guide means.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A sheet body mounting mechanism according to the present invention will be described in detail below with reference to the accompanying drawings, with reference to an embodiment in relation to a document conveying device incorporating the same.

1 and 2, reference numeral 10
Indicates a plate making machine. In the plate making machine 10, an image reading device and an image recording device are practically integrated, and an original conveying device 14 is detachably mounted on a base 12 constituting the plate making machine 10. It

The document conveying device 14 includes a document placing mechanism 18 as a sheet body placing mechanism according to the present embodiment for accommodating a plurality of read originals (sheets) 16 in a stacked manner, and the document placing mechanism 18 A separation / conveyance mechanism 20 for taking out the read originals 16 stacked one by one, and holding the taken out read originals 16 at a photographing position to record image information carried on the read originals 16 on a plate material. An image pickup unit 22 for performing plate making and an original document discharge unit 24 for reversing and stacking the read original document 16 after photographing are provided. The read document 16 is shown in FIG.
As shown in FIG. 5, a paste document having a cut-out portion for characters, pictures, etc., or a paste portion 16b for photographs, etc. is included at a predetermined position on a mount 16a such as paper.

The document placing mechanism 18 is provided with a plurality of read documents 1
A mounting table 26 which is vertically movable and magnetic in a state where 6 are stacked, and the reading document 1 stacked on the mounting table 26.
6 is provided with a guide means 28 for aligning the rear end side in the take-out direction. As shown in FIG. 1, a slide guide 29 that is slidable in the arrow Y direction corresponding to the size of the read document 16 (for example, A5 to B3 size) is provided on the mounting table 26.

As shown in FIGS. 3 and 4, the guide means 28 is directly engaged with the rear end portion of the read originals 16 stacked on the mounting table 26 to align the stacked read originals 16 in a substantially L shape. Shaped support plate 30 and a weight (pressing member) for pressing and holding the rear end side of the stacked read originals 16 in the vertical direction.
32 and a magnet 34 for attracting and holding the guide means 28 at an arbitrary position on the mounting table 26.

At the bent portion of the support plate 30, the first holder 3
A magnet 34 is attached via 6. A guide member 38 having a bent shape is fixed to the upper side of the support plate 30 in the vertical direction, and a square rod 40 is vertically inserted into the guide member 38. A roller-shaped weight 32 is rotatably attached to the lower end of the square rod 40, and a stopper 42 that is engageable with the upper portion of the support plate 30 is fixed to the upper end of the square rod 40.

Holding means 44 is provided to hold the weight 32 at a position above the read original 16. The holding means 44 includes a magnetic body 46 embedded in the lower side of the square rod body 40.
And a holding magnet 50 mounted on the upper side of the support plate 30 via the second holder 48.

As shown in FIG. 2, the separation / conveyance mechanism 20 includes:
A take-out roller 52 for taking out the uppermost document 16 to be read on the table 26 from the stacking position in the arrow X direction by a predetermined distance;
A feed roller 54 for further feeding the read document 16 taken out in the direction of arrow X, and the feed roller 54
And the topmost read original 1 which is arranged facing the
6 and the return roller 56 for returning the other read original 16 sent out integrally with the sheet 6 to the stacking position, and the read original 1 sent out.
6 is provided to the side of the image capturing unit 22.

The photographing section 22 includes a photographing table 60 that can be raised and lowered.
A plurality of endless belts running around under the action of a rotary drive source (not shown) in order to convey the read document 16 sent out from the separating / conveying mechanism 20 in the arrow X direction to a predetermined photographing position on the photographing table 60. 62, first and second suction boxes 64, 66 connected to a vacuum generating means (not shown) for adsorbing and holding the read original 16 on the endless belt 62, and the photographing table 60 is raised to perform the reading. And a pressure bonding glass 68 for pressing the document 16 to ensure the flatness of the read document 16.

The document discharge section 24 is provided with an endless belt 62.
A reversing tray 72 which is arranged close to the end of the tray and is swingable via a fulcrum 70, and a fixed tray 74 which is inclined with respect to the vertical direction.

The plate making machine 10 includes illuminations 76a to 76d for irradiating the read original 16 with illumination light at the photographing position of the photographing section 22.
A reflection mirror 78 which is arranged above the pressure-bonding glass 68 at a predetermined angle and a camera 80 which directly records the image of the read document 16 reflected by the reflection mirror 78 on a predetermined recording medium. .

Next, the operation of the document placing mechanism 18 according to this embodiment will be described in relation to the document feeding device 14.

First, a plurality of read originals 1 are placed on the mounting table 26.
6 are stacked and accommodated. The rear end portion side of the read document 16 is forcibly aligned with the vertical plane of the support plate 30 constituting the guide means 28, and the weight 32 has the weight 32.
The rear end of 6 is pressed and held vertically downward. In this state, the mounting table 26 is moved up and down to adjust the uppermost read document 16 to a predetermined take-out height position. Then, as shown in FIG.
It is taken out by a predetermined distance in the direction of the arrow X under the rotating action of 2, and is further sent to the conveying roller pair 58 under the rotating action of the sending roller 54, and is conveyed to the photographing unit 22 side via the conveying roller pair 58.

In the photographing section 22, the first suction box 64 is driven to move the read original 16 to the endless belt 62.
The endless belt 62 is circulated while being attracted to and held by. Further, the second suction box 66 is driven, and the read original 16 is adsorbed and held by the endless belt 62 and placed at a predetermined photographing position on the photographing table 60. Therefore, while the photographing table 60 is raised and the read document 16 is pressed and held by the pressure bonding glass 68, illumination light is emitted from the illuminations 76a to 76d that configure the plate making machine 10, and the camera 80 is energized. Image, text, photograph, etc. pasted portion 16 pasted on read document 16
b is directly recorded on a plate material (not shown) to produce a printing plate.

The read original 16 after the photographing is conveyed in the direction of arrow X via the endless belt 62, and once dropped and supplied to the reversing tray 72, the reversing tray 72 is reversed in the direction of arrow around the fulcrum 70. As a result, the read document 16 is stacked and accommodated on the fixed tray 74.

By the way, when the size of the read original 16 used for the plate making operation is different, the position adjustment of the slide guide 29 and the guide means 28 is performed. At this time, in this embodiment, the mounting table 26 has magnetism and the magnet 34 is attached to the guide means 28. Therefore, the operator simply holds the guide means 28 and disposes it at a desired position on the mounting table 26, and the guide means 28 is adsorbed and held on the mounting table 26 via the magnet 34. Therefore, as compared with the structure in which the member corresponding to the guide means 28 is screwed to the mounting table 26, the position adjustment work of the guide means 28 can be performed quickly and easily.

Further, in the present embodiment, the weight 32 is attached to the guide means 28, and the position adjustment of the weight 32 is simultaneously performed only by adjusting the position of the guide means 28. As a result, the efficiency of the entire preparation work corresponding to the read originals 16 having different sizes can be easily performed.

Moreover, the weight 32 can be held at a predetermined height position via the holding means 44. That is, weight 3
The magnetic body 46 is provided on the lower side of the square bar body 40 to which 2 is mounted, and the holding magnet 50 is mounted on the upper side of the support plate 30. The holding bar 50 is raised to raise the holding magnet 50. Thus, the weight 32 is held at a predetermined height position by attracting and holding the magnetic body 46. For this reason, when the plurality of read originals 16 are placed on the mounting table 26, the weight 32 can be raised in advance so that the read originals 1 can be read.
The placing work of 6 can be smoothly and easily performed without being obstructed by the weight 32. The pressing force of the weight 32 can be adjusted by selectively mounting a load member (not shown) on the upper end of the square rod 40.

Next, another guide means 90 constituting the document placing mechanism 18 will be described with reference to FIG. The same components as those of the guide means 28 are designated by the same reference numerals, and detailed description thereof will be omitted.

The guide means 90 has a suction portion 92 having a suction force ON / OFF switching structure. This adsorption part 9
Reference numeral 2 denotes a fixed magnet 96 arranged in the holder 94 and a movable magnet 98 arranged inwardly of the fixed magnet 96 so as to be movable back and forth.
With. The fixed magnet 96 has an S pole on the right side and an N pole on the left side in the figure, while the movable magnet 98 is the fixed magnet 9 in the figure.
Contrary to 6, it has an N pole on the right side and an S pole on the left side,
At both ends of this movable magnet 98, the operator
Pressing parts 100a and 100b for moving 8 to the left and right
Is provided.

In the guide means 90 thus constructed, as shown in FIG. 5, when the S pole and the N pole of the fixed magnet 96 and the movable magnet 98 overlap with each other, the mounting table 2
The suction function of 6 is released, and the guide means 90 can be easily separated from the mounting table 26. Next, when the pressing portion 100a is pressed in the direction of the arrow, the fixed magnet 96
And the S pole of the movable magnet 98 coincide with each other, and the mounting table 26 is attracted via the attraction section 92. As a result, the guide means 90 is firmly adsorbed and held on the mounting table 26.

Therefore, by using the suction portion 92, it is possible to obtain the effect that the positioning operation of the guide means 90 can be performed more easily.

In this embodiment, the document conveying device 14 which is mounted on the plate making machine 10 and conveys the read document 16 has been described, but the invention is not limited to this and the document is photoelectrically converted by a CCD or the like. It is also possible to use an image reading device that reads the image information or an image recording device that reproduces desired image information on a film or the like.

[0033]

The sheet body mounting mechanism according to the present invention has the following advantages.

A magnet is provided in the guide means for aligning the rear end sides of the sheet bodies stacked on the mounting table, and the mounting table has magnetism, and the guide means is any of the mounting tables described above. Can be adsorbed and held at the position. Therefore, the position adjustment work of the guide means can be performed quickly and easily. Moreover, the guide means is provided with a pressing member that presses and holds the rear end side of the sheet body in the vertical direction, and the position adjustment work of the pressing member is simultaneously performed only by adjusting the position of the guide means. .

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a plate making machine equipped with a document feeder that incorporates a sheet body mounting mechanism according to an embodiment of the present invention.

FIG. 2 is a front view of a schematic configuration of the document feeder.

FIG. 3 is a perspective view of a guide unit that constitutes the sheet body mounting mechanism.

FIG. 4 is a vertical sectional side view of the guide means.

FIG. 5 is a partial vertical cross-sectional view of another guide means.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Plate-making machine 12 ... Base 14 ... Original document conveying device 16 ... Read original document 18 ... Original document placing mechanism 20 ... Separation and conveying mechanism 22 ... Imaging section 24 ... Original document ejecting section 26 ... Placing table 28 ... Guide means 30 ... Support plate 32 ... Weight 34 ... Magnet 40 ... Square bar 44 ... Holding means 46 ... Magnetic body 50 ... Holding magnet 90 ... Guide means 92 ... Adsorption part 96 ... Fixed magnet 98 ... Movable magnet

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Hideki Sasaki 1005 Kozoen, Ayase City, Kanagawa Prefecture, Fuji Micrographic Co., Ltd.

Claims (2)

[Claims] 1. A sheet body mounting mechanism for stacking and accommodating a plurality of sheet bodies, wherein the plurality of sheet bodies are stacked, and a magnetic mounting table and a mounting table are provided. Guide means for aligning the rear end side of the stacked sheet bodies in the take-out direction, and the guide means, and a pressing member for vertically pressing and holding the rear end side of the stacked sheet bodies, and the guide means. And a magnet for adsorbing and holding the means at an arbitrary position on the mounting table. 2. The sheet body placing mechanism according to claim 1, further comprising holding means for holding the pressing member at a position above the sheet body.