JPH1035896A - Sheet material placing device and image processing device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] In an image processing apparatus, a rear end portion of a large-size sheet material that protrudes from a sheet material mounting portion is supported, and a sheet material fed from the sheet material mounting portion is supported. To enable smooth transport in the image processing device. SOLUTION: A sheet material placing portion 101 on which a plurality of sheet materials are placed and the sheet material is sent out from a lower portion, and provided at an upper portion of the sheet material placing portion so as to be housed and projectable,
At least one supporting the rear of the sheet material in a protruding state
In the sheet material placing apparatus having the plurality of auxiliary placing members 105, the auxiliary placing member 105 has substantially the same length as the width of the sheet material placing portion, and the upper portion of the sheet material placing portion when not in use. The guide member 102, 103 and the long groove 107 move in a straight line during use, and protrude outward from the sheet material mounting portion by rotation around the guide member 102 to support the sheet material rear end portion. Prevent its drooping.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus such as a printer and an image scanner, and more particularly to a sheet material placing apparatus for placing a sheet, that is, a sheet material. The present invention relates to an improvement in a sheet material placing device and an image processing device that are supported.

[0002]

2. Description of the Related Art An example of a conventional image processing apparatus is schematically shown in FIG.
Shown in FIG. 5A is a top view of the image processing apparatus, and FIG.
Is a front view, (c) is a side view, and (d) is a rear view. The image processing apparatus 500 shown in FIG.
6, the sheet material is set in the sheet material placing device, and is fed one by one into the image processing device in the direction of arrow A as described later with reference to FIG. The sheet is conveyed in the direction B from the sheet discharge port, and is discharged to a sheet discharge tray 520 outside the apparatus.

FIG. 6 shows a sectional configuration of this image processing apparatus. In the figure, reference numeral 501 denotes the above-mentioned sheet material placing apparatus, which is detachably mounted on the main body of the image processing apparatus by hook members K1 and K2. 601 is a paper feed port of the image processing apparatus,
Reference numeral 602 denotes a paper discharge port, and 603, a paper feed mechanism. The paper feed mechanism has a separation pad 605 urged by a spring 604 and a paper feed roller. Reference numeral 607 denotes an image processing unit having an image reading unit 608 and a transport roller 609. The plurality of sheet materials S are set on the sheet material placing portion 502 of the sheet material placing device 501 as shown in FIG.
Are fed from the lower part in the illustrated use state, fed into the paper feed port 601, and fed to the image processing unit 603 while being separated one by one by a feed roller and a separation pad of the paper feed mechanism 604. The sheet material S1 that has been subjected to the image processing by the image forming unit 607 is discharged out of the apparatus from the paper discharge square 602.

Incidentally, the above-mentioned sheet material placing apparatus is provided with an auxiliary placing member 701 for supporting a long sheet material as shown in FIG. 7, for example, as shown in FIG. Is common. An auxiliary placing member 701 is rotatably disposed at an upper portion of the sheet placing device 501 in the illustrated use state, that is, at a rear portion in a sheet feeding direction. The auxiliary mounting member 701 is stored on the back side of the sheet material mounting device 501 when not in use for processing a normal-size sheet material. When performing image processing on a long sheet material, the sheet material is rotated as indicated by an arrow 702 so as to protrude to the upper side of the sheet material placing apparatus, that is, to the rear side with respect to the sheet material sending direction. The latter part (the latter part with respect to the sheet material sending direction) is supported.

In FIG. 7, reference numeral 504 is provided on the sheet mounting portion 502 so as to be slidable in the width direction, and is synchronized by a rack 505 and a pinion 506 mechanism disposed on the back side of the sheet mounting device. The sheet width regulating member to be moved is shown on the left side of the front view of the sheet material placing apparatus in FIG. 7 in a schematic side view. In the above description, the image processing apparatus is described as an example of image reading, but the image processing apparatus is not limited to this, and can also perform image formation such as a laser beam printer and an electrophotograph.

[0006]

However, in the configuration shown in FIG. 7, the width (length in the direction orthogonal to the sheet feeding direction) B of the sheet mounting device is equal to the width of the auxiliary mounting means. The length L cannot be said to be sufficient in design, and the rear portion of the sheet material having a very large length dimension with respect to the width dimension cannot be sufficiently supported, and the latter half of the sheet material hangs down from the auxiliary placing means. In some cases, a sheet conveyance failure such as a paper supply failure or a paper supply delay may occur. In some cases, the auxiliary mounting means is not functionally sufficient even if it is not a rotary type as shown in FIG. 7 but a sliding type or a folding type in the longitudinal direction of the sheet material.

[0007]

SUMMARY OF THE INVENTION The present invention is to solve such a problem, and a first invention is a sheet material in which a plurality of sheet materials are placed and the sheet materials are sent out from a lower portion. In a sheet material placing apparatus having at least one auxiliary placing member that is provided so as to be housed and protrudable at an upper portion of the placing portion and the sheet material placing portion and supports a rear portion of the sheet material in a protruding state, The auxiliary placing member has substantially the same length as the width of the sheet placing portion, is stored above the sheet placing portion when not in use, and is linearly moved and rotated during use to place the sheet placing portion. It is characterized in that it is configured to protrude outward from the part.

According to a second aspect of the present invention, in the first aspect, a first guide support member for linearly moving and rotating the auxiliary placing member is provided on the sheet material placing portion, and the auxiliary placing member is linearly moved. A second guide support member for causing the first and second guide support members to have a long groove, and the second guide to rotate when the auxiliary placement member rotates. An escape hole communicating with the long groove is provided so as to be detachable from the support member.

According to a third aspect, in the second aspect, the number of the auxiliary mounting member is one, and the first guide supporting member is
The second guide support member is provided substantially at the center in the width direction of the sheet material placement unit, and is provided at substantially the width direction end of the sheet material placement unit. In a fourth aspect based on the second aspect, the auxiliary placement member, the first and second guide support members are each two, and the first guide support member is provided in a width direction of the sheet material placement portion. The second guide support member is provided substantially at the center between the center portion and the end portion, and is provided on a side opposite to the first guide support portion with respect to the center portion of the sheet placing portion.

According to a fifth aspect of the present invention, in the second to fourth aspects, the auxiliary mounting member is overlapped with the auxiliary mounting member when not in use, and the sheet is pivotally protruded from the auxiliary mounting member during use so as to remove the sheet. It is characterized in that a rotation support member for supporting is provided.

According to a sixth aspect of the present invention, in the second to fourth aspects, the auxiliary mounting member is overlapped with the auxiliary mounting member when not in use, and is slid and rotated from the auxiliary mounting member when in use. A slide / rotation support member that protrudes and supports the sheet is provided.

According to a seventh aspect of the present invention, there is provided an image processing apparatus comprising: the sheet material placing apparatus according to the first to sixth aspects; and image processing means for performing image processing on a sheet fed from the sheet material placing apparatus. It is characterized by having.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) FIG. 1 shows a first embodiment of the present invention. This figure shows a schematic configuration of the sheet material placing apparatus from the back side. Reference numeral 101 denotes a sheet material placing portion having the same configuration as that of the conventional example, and reference numeral 102 denotes a sheet material placing portion provided substantially at the center in the width direction of the sheet material placing portion. The first guide support member 103 is a second guide support member provided substantially at the end in the width direction. Reference numeral 105 denotes an auxiliary placing member composed of a plate-like body or a rod-like body 106 having substantially the same length as the width of the sheet material placing portion, and the plate-like body is guided by the first and second guide supporting members. A long groove 107 is formed, and a relief hole 108 is formed in communication with the long groove.
Reference numeral 109 designates the auxiliary placing member 105 as the sheet material placing section 101.
The head 1 of the second guide support member 103
The mounting hole has a diameter larger than that of the mounting hole 03a.

Next, the operation of this sheet material placing apparatus will be described with reference to FIG.
This will be described below. Normally, the auxiliary placing member 105 is retracted and stored on the back side of the sheet material placing section 101 as shown in the drawing. When setting the long sheet material, the auxiliary placing member 105 is moved straight forward in the longitudinal direction of FIG. 1A and pulled out of the sheet placing portion. Thereafter, the auxiliary placing member 105 is rotated in the direction B in the drawing around the first guide support member 102, and the projection 101B protruding from the upper wall 101A of the sheet material placing portion 101 at the position 105A in the drawing. It is fixed and locked by appropriate fixing means such as (FIG. 1).

The above operation will be described in more detail. First guide support member 102 and second guide support member 103
(The shaft is shielded by the heads 102a and 103a of the respective guide support members in FIG. 1).
07 is guided, the auxiliary placing member 105
It is pulled out by moving straight or parallel in the longitudinal direction from the storage state of FIG. 1 to the position shown by the chain line in FIG. At this time, the rear end of the long groove is the first guide support member 1
02, the escape hole 108 reaches the position of the second guide support member 103 (denoted by 108A).
At this position, the auxiliary mounting member 105 made of resin or metal and having a slight elasticity
Since the guide support member is larger than the head 103a of the guide support member, it is pulled toward the front side in the figure, the engagement with the second guide support member is released, and the state becomes rotatable. The placing member 105 reaches the position of 105A and is locked and fixed.

According to the present embodiment, the sheet material placing section 10
1 in the width direction B and the length L1 of the auxiliary placing member 105
Are approximately the same size, and the auxiliary mounting member 105 has a length approximately twice that of the auxiliary mounting member shown in FIG. Can be supported.

In one example of specific numerical values, when the width B of the sheet material placing portion is 230 mm, the extended length L of the auxiliary placing member
1 is 190 mm. Here, the sheet material placing portion dimension L2
Is 100 mm, the effective set length is 290 mm,
A4 size sheet material of 290mm length and 279mm length
LTR size sheet material can be sufficiently supported.

(Second Embodiment) FIGS. 3 and 4 show a second embodiment according to the present invention. In this embodiment, two auxiliary placing members 302 and 30 are provided for the sheet material placing section 301.
3 are arranged in two layers. First auxiliary placing member 302
The first guide support member 304 is provided at a middle portion between the width direction center portion and one end portion of the sheet material placing portion 301, and the second guide support member 305 is disposed at the same width direction center. It is provided on the opposite side of the first guide and support member 304 across the portion. The second auxiliary placing member 303 is the first
And is supported by a guide support member (not shown) similar to the first and second guide support members 304 and 305. Sheet material placement part 30 of each guide support member of placement member 303
The positional relationship of the first auxiliary mounting member 302 with respect to the center portion in the width direction is opposite to the arrangement position of the first auxiliary mounting member 302, and each guide support of the second auxiliary mounting member 303 disposed on the back side. The member is provided on the sheet material mounting portion 101, and the first member on the near side is provided.
Each guide support member of the auxiliary mounting member 302 is provided on a separate partition member (not shown). When a large-sized sheet is to be placed, the first and second auxiliary placing members 302 and 303 are pulled out in the opposite directions as shown in the drawing, rotated and locked and fixed.

According to the present embodiment, both auxiliary mounting members 30
2, 303 project in a parallel state from the sheet material mounting portion 310, so that the sheet material can be supported in a wider range than in the above-described embodiment, and a large amount of long sheet materials can be mounted. This is particularly effective for sheet materials having a large width and length.

(Third Embodiment) FIG. 8 shows a third embodiment according to the present invention. In the illustrated example, one auxiliary placing member 802 is mounted on the sheet material placing portion 801 in the same manner as in the first embodiment, but a rotation supporting member 803 is attached to the auxiliary placing member 802. I have. The rotation supporting member 803 is usually superimposed on the auxiliary placing member 802, however, when used, it rotates and protrudes from the auxiliary placing member to be used for a sheet material having a large width and length. The rear end of the sheet material can be supported. The rotation support member can be applied to the two auxiliary mounting members in the second embodiment, but is not shown.

(Fourth Embodiment) FIG. 9 shows a fourth embodiment according to the present invention. In the illustrated example, two auxiliary mounting members 902 are provided as in the second embodiment, and each auxiliary mounting member 902 includes
As schematically shown in FIG. 9A, the sliding / rotating support member 9
03 is attached by a pin 904. More specifically, as shown in FIG.
02, the shaft 904 is fitted into the groove 905 of the sliding / rotating support member 903, and one surface of the rotating member 903 is pressed by the head 906 of the shaft 904, so that the member can be frictionally slid. is there. Also in this embodiment, a large-sized sheet can be favorably supported. The sliding / rotating member,
Although it can be applied to one auxiliary placing member in the first embodiment, it is not shown.

In each of the embodiments described above, the sheet material placing apparatus has been described as being detachable from the image processing apparatus.

[0023]

As described above, according to the present invention,
Since the auxiliary placement member having a length substantially equal to the width of the sheet placement section can be projected from the stored state by the rectilinear movement and rotation from the sheet placement section, image processing of the long sheet material is performed. In the case, the back end of the sheet material can be supported firmly,
There is an effect that it is possible to prevent a sheet conveyance failure or the like due to the hanging of the rear end of the sheet material.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of a sheet material placing apparatus according to the present invention.

FIG. 2 is a diagram for explaining the operation of the first embodiment according to the present invention;

FIG. 3 is a diagram showing a second embodiment of a sheet material placing apparatus according to the present invention.

FIG. 4 is a diagram for explaining the operation of the second embodiment according to the present invention.

FIG. 5 is an external view of a conventional image processing apparatus.

FIG. 6 is a main sectional view of a conventional image processing apparatus.

FIG. 7 is a diagram showing a configuration example of a conventional sheet material placing apparatus.

FIG. 8 is a diagram showing a third embodiment of the sheet material placing device according to the present invention.

FIG. 9 is a diagram showing a fourth embodiment of the sheet material placing apparatus according to the present invention.

[Explanation of symbols]

101, 301, 502, 801, 901: Sheet material placement section 105, 302, 303, 701, 801, 902: Auxiliary placement member 107: Long groove 102, 10
3: Guide support member 605: Separation pad 606: Paper feed roller 607: Image processing unit 803: Rotation support member 903: Sliding / rotation support member

Claims (7)

[Claims] 1. A sheet material placing portion on which a plurality of sheet materials are placed and the sheet material is sent out from a lower portion, and a sheet material placing portion is provided at the upper portion of the sheet material placing portion so as to be housed and projectable, and protrudes. In a sheet material placing apparatus having at least one auxiliary placing member that supports a rear portion of a sheet material in a state, the auxiliary placing member has a width substantially equal to a width of the sheet material placing portion, and A sheet material placing apparatus which is housed in an upper portion of a sheet material placing portion when used, and is configured to protrude outward from the sheet material placing portion by linear movement and rotation when used. 2. A first guide support member for linearly moving and rotating an auxiliary placing member on the sheet placing portion,
A second guide support member for linearly moving the auxiliary placement member is provided. The auxiliary support member has a long groove guided by the first and second guide support members, and a rotation of the auxiliary placement member. 2. The sheet material placing apparatus according to claim 1, wherein an escape hole communicating with the long groove is provided so as to be detachable from the second guide support member when moving. 3. The apparatus according to claim 1, wherein the auxiliary placement member is one piece, the first guide support member is located substantially at the center in the width direction of the sheet material placement portion, and the second guide support member is placed in the sheet material placement portion. The sheet material placing device according to claim 2, wherein the sheet material placing device is provided at each of substantially end portions in the width direction of the portion. 4. The apparatus according to claim 1, wherein each of the auxiliary placement member and the first and second guide support members is two, and the first guide support member has a widthwise central portion and an end portion of the sheet material placement portion. 3. The sheet material placing device according to claim 2, wherein the second guide supporting member is provided substantially at the middle, and is provided on a side opposite to the first guide supporting portion with respect to a central portion of the sheet placing portion. apparatus. 5. The auxiliary mounting member is provided with a rotation support member that is superposed on the auxiliary mounting member when not in use and that protrudes from the auxiliary mounting member and supports the sheet when in use. 5. The sheet material placing device according to claim 2, wherein: 6. The sliding / rotating member which is superimposed on the auxiliary placing member when not in use, and projects by sliding / rotating from the auxiliary placing member when used to support a sheet. 5. A supporting member is provided.
The sheet material mounting device as described in the above. 7. An image processing apparatus comprising: the sheet material mounting device according to claim 1; and an image processing unit that performs image processing on a sheet fed from the sheet material mounting device.