JP2001343802A - Covering device for object to be copied in copying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simply-structured covering device in a copying device capable of realizing excellent copying by surely covering over both a sheet type object to be copied and a solid object to be copied. SOLUTION: This covering device for an object to be copied 3 in the copying device is equipped with an original cover 20 provided to be freely opened/closed on an object-to-be-copied placing table 5 of an image reader 2, and at least an object-to-be-copied housing space 29 for housing the solid object to be copied M at the time of reading the image of the solid object to be copied M is formed at the part of the cover 20 on the placing table 5 side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover device for a copying apparatus, which covers an object placed on an object mounting table of an image reading apparatus.

[0002]

2. Description of the Related Art In general, a copying apparatus is an image reading apparatus for reading an image of a copy object such as a document placed on a table glass constituting a copy table, and image data obtained by the image reading apparatus. And an image forming unit that forms (records) an image on an image recording material such as recording paper based on image data that has been subjected to image processing in the image processing unit.

An image reading apparatus in this type of copying apparatus includes a light source, a scanner unit including a plurality of reflecting mirrors, an imaging lens, and a reading sensor such as a CCD, an original cover provided on a table glass so as to be freely opened and closed, and the like. ing. At the time of image reading, the original placed on the table glass is covered with the original cover, and in this state, the original is scanned by the scanner unit. Irradiated, a reflected light image from the copy object is guided to a reading sensor through a reflecting mirror and a lens, and image data is obtained.

[0004]

The copy to be used in the above-described copying apparatus is mostly in the form of a sheet, and the original cover of the image reading apparatus is particularly designed to reflect light from the sheet to be copied. In order to efficiently guide the light image to the reading sensor, the sheet-shaped copy is pressed down on a table glass to be flattened and has a function of being flattened. Therefore, when the object to be copied is three-dimensional, when the object to be copied is suppressed by the conventional original cover, a gap is generated between the original cover and the table glass, and light from the light source leaks out. Thus, not only is the user dazzling, but also the illumination of the copy object, especially on the side surface, is insufficient, and the copied image has poor gradation.

In order to solve such a problem, as disclosed in Japanese Patent Application Laid-Open No. Hei 6-282015, an illuminating means for illuminating a three-dimensional object to be copied placed on a table glass from behind is provided. A copying apparatus has been proposed which is capable of copying a three-dimensional object by providing a dedicated unit.

However, since this copying apparatus requires a dedicated unit, it has a complicated structure and is expensive.
Since the dedicated unit can be used only for a special purpose, it has been difficult for a general user to use the dedicated unit installed in a copying apparatus.

An object of the present invention is to solve the above problems,
An object of the present invention is to provide a cover device in a copying apparatus that can reliably cover both a sheet-shaped copy object and a three-dimensional copy object with a simple structure and perform good copying.

[0008]

SUMMARY OF THE INVENTION A cover device according to the present invention is a cover for an object to be copied in a copying machine having an original cover which is openably and closably provided on a mount for the object to be copied of an image reading apparatus. An apparatus, characterized in that at least a three-dimensional object receiving space for accommodating the object at the time of reading an image of the object to be copied is formed in the cover portion on the object mounting table side. It is.

When copying a three-dimensional object to be copied, the cover is closed, the object placed on the mounting table is accommodated in the object accommodating space, and the cover other than the object accommodating space is closed. The part is brought into contact with the mounting table. By doing this,
The three-dimensional object can be reliably covered with the cover, and a gap can be created between the cover and the mounting table to prevent light from leaking, enabling good copying of the three-dimensional object. Becomes Further, since only the space for accommodating the object to be copied is formed in the cover, the structure is simple and can be manufactured at low cost.

The copy object accommodating space is formed by forming a concave portion in a part of the cover. A concave portion may be simply formed in the cover portion on the copy-substrate mounting table side so that the copy-object storage space may be formed even when copying a sheet-like copy product. Also in this case, when copying a sheet-shaped copy object, the copy object can be reliably covered by pressing the copy object with the cover around the copy object storage space.

However, it is preferable that the copy receiving space is formed only when copying a three-dimensional copy, and the copy receiving space is eliminated when copying a sheet-like copy. Hold the copy with the entire cover.

In this manner, the sheet-like copy can be reliably covered with the entire cover, and the copy of the sheet-like copy can be performed well as before.

In the cover device of the present invention, for example,
The inner surface of the copy object storage space is a diffuse reflection surface.

According to this, the illumination light of the image reading device is irregularly reflected by the irregular reflection surface on the inner surface of the space for accommodating the object to be illuminated, thereby illuminating the side surface of the three-dimensional object. In this case, it is possible to improve the gradation of a copy image of the object to be copied and to perform good copying.

In the cover device of the present invention, for example,
A concave portion having a predetermined size is formed in the portion of the cover on the copy object mounting table side, and a pressing member for holding the sheet-shaped copy object is provided along the cover portion on the copy object side. The holding member is provided at one end thereof with a rising wall which is located in the concave portion and forms a part of the wall of the copy receiving space.

In this case, the pressing member is moved to the extreme position on the rising wall side, and the rising wall is brought into contact with the wall on one side of the concave portion, thereby closing the concave portion with the pressing member.
A good copy can be performed by eliminating the concave portion and pressing the entire surface of the sheet-like copy object with the pressing member or the pressing member and the cover. Further, by moving the holding member to the extreme position on the opposite side and bringing the rising wall into contact with the wall on the opposite side of the concave portion, the volume of the space for accommodating the copy object can be maximized. By moving to an arbitrary position between the positions, it is possible to arbitrarily adjust the volume of the copy receiving space. Further, by adjusting the position of the rising wall, it is possible to adjust the illumination state on the side surface of the three-dimensional object to be copied, so that good copying can be performed even when the size of the object to be copied is different. it can. Therefore, it is possible to satisfactorily copy a sheet-like copy object and a three-dimensional copy object having a different size, and the cover is made into a sheet-like copy copy object by a simple operation of moving the holding member. It is possible to switch between the object and the three-dimensional object.

In the above-described cover device, for example, the surface of the rising wall of the pressing member facing the copy object accommodating space is the irregular reflection surface.

According to this, it is possible to illuminate the side surface of the three-dimensional object to be copied, so that good copying can be performed as described above.

In the above cover device, for example, the pressing member can move in the sub-scanning direction of the image reading device.

According to this configuration, the surface of the rising wall of the pressing member facing the copy object accommodating space is a surface perpendicular to the sub-scanning direction. Since the illumination light of the image reading device moves in the sub-scanning direction, by adjusting the position of the rising wall of the pressing member perpendicular to the sub-scanning direction, the side surface of the three-dimensional object to be copied is most effectively adjusted. The amount of illumination can be adjusted.

In the cover device of the present invention, for example,
The copy object storage space is formed in a portion of the cover on the upstream side in the sub-scanning direction of the image reading device.

According to this, the amount of scanning movement of the image reading device can be reduced.

In the above-described cover device, for example, the concave portion is formed in a portion of the cover that is upstream with respect to the sub-scanning direction of the image reading device, and is provided at an upstream end of the holding member in the sub-scanning direction. A rising wall is formed, and the opposite end of the pressing member projects downstream from the cover in the sub-scanning direction.

According to this, by manipulating the portion of the pressing member projecting from the cover, the pressing member can be easily moved to adjust the size of the space for accommodating the copy object. The object storage space can be formed on the upstream side in the sub-scanning direction, and the amount of protrusion of the pressing member from the cover can be minimized.

[0025]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an appearance of a copying apparatus to which the present invention is applied, and FIG. 2 shows an enlarged longitudinal section of a main part thereof.
In the following description, the lower left side of FIG. 1 (front side of FIG. 2) is the front, the upper right side of FIG. 1 (back side of FIG. 2) is rear, and the upper left side of FIG. 1 (left side of FIG. 2) is left. , The lower right side of FIG. 1 (the right side of FIG. 2) is defined as the right. FIG. 3 is a partially enlarged view of FIG.

The copying apparatus is provided with a box-shaped apparatus main body (1), and an image reading device (2) for the object to be copied (M) is provided at an upper portion in the apparatus main body (1), and the image to be copied is provided thereon. An object cover device (3) is provided. An operation panel (4) is provided at the front of the upper surface of the device body (1).

Although not shown, an image forming section is provided below the image reading device (2) in the apparatus main body (1). The image forming unit includes a sheet feeding / conveying unit for recording paper for forming an image, a laser writing unit, and an electrophotographic processing unit for forming an image. Note that the image forming unit can employ any known configuration, and a detailed description thereof will be omitted.

The image reading unit (2) includes a document table (substrate to be copied) (5) made of a transparent table glass, and a document table.
And a scanner unit (6) provided below (5).

The scanner unit (6) scans and reads an image of the copy (M) placed on the document table (5), and includes a first scanning unit (7) and a second scanning unit. Unit (8)
, An imaging optical lens (9), and a photoelectric conversion element CC
D (Charge Coupled Device) (10).

The first scanning unit (7) includes a lamp reflector assembly (11) as an irradiating means for irradiating the copy (M) on the document table (5), and a reflection from the copy (M). In order to guide the light image to the CCD (10), the first reflecting mirror (1) that reflects the reflected light image from the copy (M) toward the second scanning unit (8)
2) is installed. The second scanning unit (8) includes a second reflecting mirror (13) for reflecting the reflected light image from the first reflecting mirror (12) toward the optical lens (9) in order to guide the reflected light image to the CCD (10), and a second reflecting mirror (13). Three reflecting mirrors (14) are mounted. Optical lens (9)
Is for forming a reflected light image from the third reflecting mirror (14) on the CCD (10). CCD (10) is the object to be copied
The photosensitive light receiving means for converting the reflected light image from (M) into an electric image signal is constituted.

First scanning unit of the scanner unit (6)
The lamp reflector assembly (11) provided in (7) is
Xenon lamp, a low-heat lamp that constitutes the irradiation light source
(15), a reflector (reflecting plate) (16) arranged so as to surround a part of the lamp (15), and a sub-reflector (17) arranged on the opposite side of the reflector (16). Lamp (15)
Irradiates the copy object (M) placed on the document table (5). Some of the light from the lamp (15) goes directly to the platen (5)
And irradiates the object to be copied (M). In addition, lamp (15)
Another part of the light from the light source is once reflected by the reflector (16) and the sub-reflector (17), and thereafter enters the document table (5) to irradiate the copy (M).

The scanner unit (6) comprises a scanning unit (7)
(8) is moved along the lower surface of the document table (5), and the image of the copy (M) on the document table (5) is read. First scanning unit (7)
Moves at a constant speed from left to right, that is, in the sub-scanning direction, and scans the copy (M). Second scanning unit (8)
Move in parallel in the same direction at half the speed of the first scanning unit (7). Thus, the image of the copy object (M) is formed on the CCD (10) line by line and read. CC
The image data read by D (10) is subjected to predetermined image processing in an image processing unit (not shown), and is sent to the laser writing unit of the image forming unit. In addition,
The left side in the sub-scanning direction of the scanning units (7) and (8) is referred to as an upstream side, and the right side is referred to as a downstream side.

The cover device (3) has an original cover (20) provided on the original table (5) so as to be openable and closable. The cover (20) rotates around a left-right axis at its rear end to open and close the upper surface of the document table (5). The cover (20) includes a tray-shaped cover body (21) having an open lower surface, and a rear end thereof is rotatably attached to the upper surface of the apparatus body (1).

The thick plate-like intermediate member (22) is connected to the cover body (21).
It is fitted inside and is fixed to the inner surface of the top wall of the cover body (21) via a suitable cushion member (30). Intermediate member
The lower part of (22) projects slightly below the lower surface of the cover body (21), and is an intermediate member that is the portion of the cover (20) on the platen (5) side.
The lower surface of (22) is a flat surface. On the left side of the lower surface of the intermediate member (22), that is, on the downstream side in the sub-scanning direction of the scanner unit (6), there is formed a concave portion (23) having a rectangular cross section with only the lower surface opened. The top inner surface (23a), the left and right side inner surfaces (23b) and (23c), and the front and rear side inner surfaces (23d) of the concave portion (23) are irregular reflection surfaces.

The horizontal plate-shaped holding member (24) is provided with a cover (20).
It is attached so that it can move to the left and right. The holding member (24) is a holding plate portion (25)
And a pair of guide portions (26) extending in the left-right direction at both front and rear ends of the holding plate portion (25), a rising wall (27) at the left end of the holding plate portion (25), and a holding plate portion (25). Operation unit at the right end of
And (28) are integrally formed, and attached to the cover (20) so as to be movable in the left-right direction along the guide portion (26). The pressing plate portion (25) contacts the lower surface of the intermediate member (22) on the right side of the concave portion (23), and moves in the left-right direction along this. The left end of the holding plate (25) faces the recess (23), the rising wall (27) is located in the recess (23), and the upper end of the rising wall (27) is the inner surface of the top of the recess (23). Contacting or close to (23a). Cover on the right side of the holding plate (25)
It protrudes rightward from (20), and an operation part (28) is formed in this part.

The pressing member (24) is operated to operate the operating portion (28) so that the rising wall (27) is formed on the inner surface on the left side of the concave portion (23).
(23b) and the rising wall (27) are recessed (2
It can move between 3) and the right end position in contact with the right inner surface (23c). With the holding member (24) moved to the left end position,
The recess (23) is closed by the holding plate (25), and the intermediate member (2
Almost the entire lower surface of 2) is covered. In a state where the holding member (24) is on the right side of the left end position, the rising wall (27), and the top inner surface (23a) of the concave portion (23) on the left side thereof,
The front and rear side inner surface (23d) and the left side inner surface (23b) form a copy object accommodation space (29). And the holding member (2
By changing the position of 4) in the left and right direction, the accommodation space (29)
Volume can be changed. The rising wall of the holding member (24) (2
The left side surface (27a) of (7) is a diffuse reflection surface, whereby the entire inner surface of the accommodation space (29) is a diffuse reflection surface.

In the case of a sheet-shaped copy (M), as shown in FIG. 3 (a), the pressing member (24) is moved to the left end position.
With this configuration, it is possible to perform good copying by pressing the entire surface of the copy (M) with the holding plate portion (25) or with the holding plate portion (25) and the lower surface of the intermediate member (22). .

In the case of a three-dimensional object (M), as shown in FIG. 3 (b) or (c), the holding member (24) is moved to the right side from the left end position, and the accommodation space (29) is moved. Forming platen (5)
The upper copy (M) is accommodated in the accommodation space (29). With this configuration, the lower surfaces of the holding plate portion (25) and the intermediate member (22) come into contact with the platen (5), and a gap is formed between the cover (20) and the platen (5), and light is emitted. Leakage is prevented, and good copying of the three-dimensional object (M) can be performed. At this time, the size of the storage space (29) is adjusted according to the size of the copy (M). Further, the position of the rising wall (27) is adjusted so that the illumination state of the copy object (M) becomes good.

A concave portion (23) for forming a copy object accommodating space (29).
Is appropriately determined in consideration of the use of the copying apparatus and the like. In the above example, for example, the height is 10 to 20 mm,
The width in the left-right direction (sub-scanning direction) is about 200 mm, and the width in the front-rear direction is about 300 mm. However, the size of the concave portion (23) is not limited to the above. If the height of the concave portion (23) is increased, a larger copy can be accommodated.However, since the depth of focus of the image reading device is usually several mm, the height of the concave portion (23) is reduced. Even if the height is higher than necessary, the image of the portion far away from the document table (5) will be blurred.

If the width in the left-right direction of the concave portion (23) is about 200 mm as described above, the maximum amount of the pressing member (24) pulled out to the right side is also about 200 mm. However, this amount is not limited to the above value. If the maximum withdrawal amount of the holding member (24) is too large, the operability is deteriorated, and the risk of damaging the holding member (24) is increased. If the holding member (24) is pulled out to the front side (the operation panel (4) side) of the cover (20), the operability of the operation panel (4) is significantly deteriorated. Also, if the holding member (24) is drawn out to the rear side of the cover (20) (toward the center of rotation of the cover (20)), opening and closing of the cover (20) becomes extremely difficult, and the Operability remarkably deteriorates. In contrast, in the above example, the holding member (24) is pulled out to the right side of the cover (20), so that the holding member (24) opens and closes the cover (20) and operates the operation panel (4). The operability is extremely good without disturbing the user.

For example, the intermediate member (22) is made of a relatively hard foamed resin material, and has an irregular reflection surface by attaching a white resin sheet to the inner surface of the concave portion (23).

For example, the pressing member (24) is made of a resin molded product or a press molded product, and its surface is coated with a white paint or a white resin sheet is adhered to form a diffuse reflection surface.

The configuration of each part of the copying apparatus, the configuration of the copy object cover device, and the like are not limited to those of the above-described embodiment, and can be appropriately changed.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a copying apparatus showing an embodiment of the present invention.

FIG. 2 is an enlarged longitudinal sectional view showing a part of a copy object cover device of the copying apparatus of FIG. 1;

FIG. 3 is a longitudinal sectional view showing a part of the copy object cover device of FIG. 2;

[Explanation of symbols]

 (2) Image reading device (3) Copy cover device (5) Platen (20) Original cover (23) Recess (23a) (23b) (23c) (23d) Inner surface (24) Pressing member (25) Press Plate (27) Standing wall (27a) Side (29) Copy storage space (M) Copy

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 1/107 (72) Inventor Kyosuke Taka 22-22 Nagaikecho, Abeno-ku, Osaka City, Osaka F term (reference) 2H012 CB01 CB02 2H071 AA46 DA01 DA02 2H076 BA07 EA02 5C062 AA05 AB00 AD02 AD03 AD06 BA00 5C072 AA01 BA17 LA07 XA01

Claims (7)

[Claims] 1. A copy object cover device in a copying apparatus having an original cover openably and closably provided on a copy table of an image reading apparatus, wherein the cover on the copy table mounting side is provided. A copy object cover device in a copying apparatus, wherein a copy object accommodation space for accommodating the copy object is formed at least when a three-dimensional image of the copy object is read. 2. An apparatus for covering an object to be copied in a copying apparatus according to claim 1, wherein an inner surface of said space for accommodating an object to be copied is a diffusely reflecting surface. 3. The apparatus according to claim 1, further comprising:
A concave portion having a predetermined size is formed, and a pressing member for pressing the sheet-shaped copy object is provided so as to be movable along the cover portion on the copy object side. 3. An end wall having a rising wall which is located in the concave portion and forms a part of a wall of the object storage space.
To be copied in the copying apparatus of the present invention. 4. The apparatus for covering an object to be copied in a copying apparatus according to claim 3, wherein the surface of the rising wall of the pressing member facing the space for accommodating the object to be copied is a diffusely reflecting surface. 5. An apparatus according to claim 3, wherein said pressing member is movable in a sub-scanning direction of said image reading apparatus. 6. The copying apparatus according to claim 1, wherein said object storage space is formed in a portion of a cover on an upstream side in a sub-scanning direction of said image reading apparatus. Copying device cover device in the device. 7. The image forming apparatus according to claim 1, wherein the concave portion is formed in a portion of the cover on an upstream side with respect to the sub-scanning direction of the image reading device, and a rising wall is formed at an upstream end of the pressing member in the sub-scanning direction. 6. The apparatus according to claim 5, wherein an opposite end of the holding member protrudes downstream from the cover in the sub-scanning direction.