JPH0269733A - Document feeding device - Google Patents

Abstract

PURPOSE:To improve manipulation and operativity by providing a document feeding part rotatably to an image pattern takeout device and providing a tray, a document supplying part, and a document moving direction inversion part fixedly. CONSTITUTION:The document feeding part 61 is provided on the image pattern takeout device main body 41 rotatably through a hinge member and the tray 17, document feeding part 72, and document moving direction inversion part 81 are provided by fixing to the image pattern takeout device main body 41. Therefore, when a document is supplied manually or when the manual/automatic switching of the supply of the document is performed, only the document feeding part 61 is rotated and the length, height, and total weight of the rotated part are easily reduced. Consequently, the operability is improved to improve the operation for taking an image pattern out.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a document transport device that is provided in an image pattern extraction device included in a copying machine, for example, and that transports the document to an image pattern extraction position in the image pattern extraction device main body. It is related to the device.

[Conventional technology]

As shown in FIGS. 4 and 5, for example, a conventional document conveying device 11 includes a document tray 12, a document supply section 13, a document conveyance section 14, and a document movement direction reversing section 15. and a document supply section 13 are fixedly provided on the upper part of the image pattern take-out device main body 16, while a document transport section 14 and a document movement direction reversing section 1 are provided.
5 is integrally formed and rotatably provided on the upper part of the image pattern extraction device main body 16 via hinge members 17.

The document supply section 13 is driven by a drive means (not shown) to transfer the document placed on the document tray 12 to the document transport section 1.
Document supply rollers 21, 21 for feeding the document to the document feeder 4 are provided.

Further, the document conveying section 14 is provided with a heald drive roller 22 that is driven and rotated by a drive means (not shown), and a rotatable heald driven roller 23. Between these rollers 22 and 23 is a transport heald 24 that transports the original.
is stretched out. Belt tension rollers 25 are provided between the heald drive roller 22 and the belt driven roller 23 to press the lower side of the conveyor belt 24 downward.

On the other hand, the document moving direction reversing unit 15 includes a conveying roller 26,
A turn roller 27 is provided to reverse the moving direction of the document and discharge the document from which the image pattern has been taken out.

Further, a document reversing flapper 28 is provided so that the image patterns on both sides of the document can be taken out by reversing the front and back sides of the document.

The document conveying section 14 and the document moving direction reversing section 15 are covered from above by a cover 29.

In this type of document conveying device 11, the document placed on the document tray 12 is moved by rotating the document conveying section 14 and the document moving direction reversing section 15 downward and bringing them into close contact with the upper surface of the image pattern extraction device main body 16. is automatically conveyed to the image pattern extraction position in the image pattern extraction device main body 16.

When manually feeding a document, the document 1 general feeding section 14 and the document movement direction reversing section 15 are rotated upward.
After placing the original on the top surface of the image pattern extraction device main body 16, the original transport section 14 and the original moving direction reversing section 15
is rotated downward to press the original against the upper surface of the image pattern take-out device main body 16. That is, the document conveying section 14 and the document moving direction reversing section 15 are used as a document cover.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional document transport device, the document transport section 1
4 and the document movement direction reversing section 15 are integrally formed, the total weight of the parts that are rotated up and down when manually feeding the document tends to be large. Therefore, there have been problems in that the operability is poor and the workability when extracting an image pattern is poor.

Furthermore, the hinge members 17 that rotatably support the document transport section 14 and the document movement direction reversing section 15 need to be relatively large members so as to be able to support a large weight, resulting in high manufacturing costs. It also had the following problem.

[Means for Solving the Problems] In order to solve the above-mentioned problems, a document conveyance device according to the present invention is provided in an image pattern extraction device that takes out an image pattern of a document, and is provided in an image pattern extraction device that takes out an image pattern of an image pattern in the main body of the image pattern extraction device. A document transport unit that transports the original to the original position, a tray on which the original is placed, a document supply unit that supplies the original placed on the tray to the document transport unit, and a direction in which the original sent from the document transport unit moves. In the document transport device, the document transport section is rotatably provided in the image pattern take-out device main body via a hinge member, and the tray, document supply section, and A feature of the present invention is that the document moving direction reversing section is fixedly provided to the main body of the image pattern extraction device.

[For production]

With the above configuration, the document supply section, tray, and document movement direction reversing section are provided in the main body of the image pattern retrieval device. When switching, it is sufficient to rotate only the document transport section, and the length, height, and total weight of the rotated portion can be easily reduced.

Therefore, the operability can be improved, and the workability when performing image pattern extraction work can be improved.

Furthermore, since the hinge member that rotatably supports the document conveyance unit does not need to support a large weight, a relatively small member can be used, and manufacturing costs can be reduced.

[Example] As an example of the present invention, an example used in a copying machine will be described as a first example.
The explanation will be as follows based on the drawings to FIG.

As shown in FIG. 1, the copying machine 31 includes an optical section 3 which is an image pattern extraction device for extracting an image pattern from a document.
A copying section 34 is provided below the copying section 2, which exposes the photosensitive drum 33 to light based on the image pattern of the document taken out by the optical section 32, and forms a copy image on a transfer paper (not shown).

Image pattern extraction device main body 4 that constitutes the optical section 32
1, a table glass 42 is provided at the image pattern extraction position. Below the table glass 42, there is a lamp unit 43 that illuminates the original placed on the table glass 42, and mirrors 44 to 49 that reflect light based on the image pattern of the original and guide it to the photoreceptor drum 33.
, and a lens 50 that forms an image of light based on the image pattern of the original onto the photoreceptor drum 33.

Above the table glass 42 , there is provided a document transport section 61 that transports the document onto the image pattern take-out position in the image pattern take-out device main body 41 , that is, onto the table glass 42 .

As shown in FIG. 2, this document conveyance section 61 is rotatably attached to the image pattern extraction device main body 41 via hinge members 62.

The document conveying section 61 includes an image pattern extraction device main body 4.
1, a drive means (not shown) provided in document transport section 6
A belt drive roller 63 rotates by transmitting driving force through a gear that engages only when the roller 1 rotates to the lower position.
, and a rotatable belt driven roller 64. A conveyance belt 65 for conveying the original is stretched between these rollers 63 and 64. A conveyor belt 6 is provided between the belt drive roller 63 and the driven roller 64.
Belt tension roller 6 that presses the lower side of 5 downward
6... is provided.

A document stopper 67 is provided below the belt drive roller 63 for positioning the document being conveyed. Further, above the belt drive roller 63, a conveyor belt 65 is used to carry a document sent back from a document moving direction reversing unit 81, which will be described later.
A document passage 68 is provided for discharging the document above. The entire chassis of the document transport section 61 is covered from above by a cover 69.

The image pattern retrieving device main body 41 also includes a document tray 71 on which a document is placed, a document supply section 72 that supplies the document placed on the document tray 71 to the document transport section 61, and a document feed section 72 that supplies the document placed on the document tray 71 to the document transport section 61. An original moving direction reversing unit 81 is fixedly provided to reverse the moving direction of the original that has been moved. The image pattern extraction device main body 41 is further provided with electrical components (not shown) that control the operation of the document transport section 61.

The document supply section 72 is provided with a document passage 73 that guides the document to the document transport section 61 . As shown in FIG.
A lid member 74 for opening and closing is provided. This lid member 7
4 opens the document passage 73 and forms part of the wall surface of the document passage 73 when the document conveyance unit 61 rotates downward and is in close contact with the upper surface of the table glass 42;
When the document transport section 61 is rotating upward, the document path 73 is closed by the biasing force of a spring or the like.

In the document passing path of the document supply section 72, document supply rollers 75 are provided which are driven by a drive means (not shown) and feed the document placed on the document tray 71 to the document transport section 61.

On the other hand, the document moving direction reversing unit 81 includes a conveying roller 82,
A turn roller 83 is provided, and a document path 84 is formed. The document moving direction reversing section 81 reverses the moving direction of the document from which the image pattern has been taken out, which is sent from the document conveying section 61 , and then sends it back to the document conveying section 61 . It is designed to be discharged.

In addition, in the document passage 84 of the document moving direction reversing section 81,
A document reversing flapper 85 is provided, and the document transport section 61
By reversing the direction of movement of the original sent from the original and then sending it back to the lower side of the transport belt 65 in the original transport unit 61, it is possible to reverse the original and take out the image patterns on both sides of the original. It has become.

A lid member 86 that opens and closes the document passage 84 according to the rotational position of the document conveyance section 61 is provided on the document conveyance section 61 side of the document passage 84 of the document movement direction reversing section 81, similar to the document supply section 72 described above. It is being

The above document transport section 61, document tray 71, document supply section 72
, and the document movement direction reversing unit 81, the document transport device (Automatic Document Fe
eder) is configured.

In the above configuration, when a document placed on the document tray 71 is automatically conveyed above the table glass 42 and copied, the following operations are performed.

First, the document conveying section 61 is rotated downward to bring it into close contact with the upper surface of the table glass 42, and then the document is placed on the document tray 71. Then, the original placed on the original tray 71 is sent to the original transport section 61 through the original passage 73 by the original supply rollers 75.

The original sent to the original transport unit 61 is transferred to the heald drive roller 6
By the movement of the transport heald 65 as the document 3 rotates, the document is transported between the transport heald 65 and the table glass 42 in the direction of the document movement direction reversing unit 81 . When the leading edge of the document reaches the document stopper 67, the document stops. Therefore, by moving the lamp unit 43, mirror 44, etc. in the direction of the document supply section 72 and rotating the photoreceptor drum 33, the image pattern of the document is taken out and the photoreceptor drum 33 is exposed. A copy image is formed on paper, and the image pattern of the original is copied.

When the copying of the image pattern is completed, the original is moved by the conveyor belt 65, and by the conveyor roller 82 and turn roller 83.
, the document is transported through the document path 84 and the document path 68, and the direction of movement is reversed, and the document is conveyed through the document path 84 and the document path 68.
and is discharged above the transport heald 65.

Further, when the document is passing through the document path 84, if the document flipping flapper 85 is rotated upward, the document will be
The conveyance belt 6 in the document conveyance unit 61 passes under the document front-back reversal flapper 85 and the document is reversed.
5, and the back side of the original can be copied.

On the other hand, when copying is performed by manually placing a document on the table glass 42, the following operations are performed.

First, the document conveyance section 61 is rotated upward to place the document on the table glass 42, and then the document conveyance section 61 is rotated downward, and the document conveyance section 61 presses the document against the upper surface of the table glass 42. do.

Thereafter, as in the case of automatic document feeding described above, the image pattern of the document is copied by moving the lamp unit 43 and the mirror 44, etc.

When the copying of the image pattern is completed, the original transport section 61
is rotated upward to take out the document placed on the table glass 42.

By the way, since the document tray 71, the document supply section 72, and the document movement direction reversing section 81 are fixedly provided to the image pattern take-out device main body 41, the document can be manually placed on the table glass 42 as described above. When placing the document, it is sufficient to rotate only the document transport section 61 up and down. In other words, the rotating part used as a substitute for the document cover can be made compact and lightweight, which improves operability and eliminates restrictions such as size determined depending on the overall size of the copying machine 31. can be easily satisfied.

Furthermore, a hinge member 62 that rotatably supports the document transport section 61 is provided.
- 62 does not need to support a large weight, so relatively small and inexpensive members can be used, and the springs and the like built into the hinge members 62 can also be inexpensive.

In addition, cover members 74 and 86 are provided at the ends of the document passage 73 and the document passage 84 on the side of the document conveyance section 61, respectively, and when the document conveyance section 61 is rotated upward, the biasing force of a spring, etc. Since the original path 73 is closed, clips and the like are prevented from falling into the original paths 73 and 84.

Moreover, the document supply section 72 and the document movement direction reversing section 8
1 is provided below the table glass 42 in the image pattern extraction device main body 41, so it does not become an obstacle when placing, for example, an original larger than the table glass 42 on the table glass 42, which further improves work efficiency. improves.

In this embodiment, the document moving direction reversing section 81 has been described as having a function of reversing the front and back of the document, but the present invention is not limited to this. The same effect can be obtained even with a device that only ejects documents.

〔Effect of the invention〕

As described above, the document transport device according to the present invention is provided in the image pattern take-out device that takes out the image pattern of the document, and includes a document transport section that transports the document to the image pattern take-out position in the image pattern take-out device main body, and A document comprising a tray on which the document is placed, a document supply section that supplies the document placed on the tray to a document conveyance section, and a document movement direction reversing section that reverses the direction of movement of the document sent from the document conveyance section. In the conveyance device, the document conveyance section is rotatably provided on the image pattern take-out device main body via a hinge member, while the tray, the document supply section, and the document movement direction reversing section are provided on the image pattern take-out device main body. This is a fixed configuration.

As a result, the length, height, and total weight of the rotating portion can be reduced, improving operability and improving workability when performing image pattern extraction work.

Moreover, a comparatively small-sized member is used as the hinge member that rotatably supports the document conveying section, and manufacturing costs can also be reduced.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention, in which FIG. 1 is a cross-sectional front view showing the configuration of a copying machine, FIG. 2 is a perspective view thereof, and FIG. 3 is a document supply section. FIG. 2 is an enlarged sectional front view showing the detailed configuration of the FIG. 4 and 5 show conventional examples.
The figure is a cross-sectional front view showing the configuration of a conventional document conveying device.
The figure is an exploded perspective view. 32 is an optical section (image pattern extraction device), 41 is the main body of the image pattern extraction device, 61 is an original transport section (original transport device), 62 is a hinge member, 71 is an original tray (original transport device), and 72 is an original supply section (Original transport device), 8
Reference numeral 1 denotes an original moving direction reversing unit (original conveying device).

Claims (1)

[Claims] 1. A document transport section provided in an image pattern take-out device for taking out an image pattern of a document and transporting the document to an image pattern take-out position in the main body of the image pattern take-out device, a tray on which the document is placed, and a tray on which the document is placed on the tray. In the document transport device, the document transport unit includes a document supply unit that supplies the original to the document transport unit, and a document movement direction reversing unit that reverses the moving direction of the document sent from the document transport unit. The apparatus is characterized in that the tray, the document supply section, and the document movement direction reversing section are fixedly provided on the image pattern takeout apparatus main body, while being rotatably provided on the takeout apparatus main body via a hinge member. Document transport device.