KR970003414B1 - Document transmitting apparatus of image processing device - Google Patents

Abstract

A paper sending apparatus of the image processor in order to solve the several problems for sending the paper in accordance with the friction of the rollers. The said apparatus consist of a operation motor, gear system, several rollers, two sensor(300, 300'), a bracket and a elastic means.

Description

Document Feeder of Image Processing System

1 (a) and 1 (b) is a plan view of the lower structure and the upper structure of the document feeder for conventional document transfer.

Figure 2 is a perspective view of the main portion showing an example of a conventional incomplete document transfer.

3 is a perspective view of the main portion showing another example of a conventional incomplete document transfer.

4 is a perspective view of the main portion showing another example of a conventional incomplete document transfer.

5 is a side main view showing an image reading sensor area of a conventional document feeder;

6 is a plan view of a document feeder for explaining the first embodiment of the present invention.

7 is a plan view of a document feeder for explaining an example of the first embodiment of the present invention.

8 is a principal part perspective view for explaining the second embodiment of the present invention.

9 (a) to 9 (c) are a plan view, a side view, and a front view for explaining a second embodiment of the present invention.

Fig. 10 is a side view of principal parts for explaining the operation of the second embodiment of the present invention.

Fig. 11 is a side view of main parts for explaining the driving pulse for each section in the second embodiment of the present invention.

12 is a flowchart showing operations of a sensor and a motor according to the second embodiment of the present invention.

13 (a) and 13 (b) are plan views showing a document feeder to which the second embodiment of the present invention is applied.

14 is a side view showing a third embodiment of the present invention.

15 (a) and 15 (b), the image reading sensor for contacting the image sensor with the sensor roller at a predetermined pressure

Top and side views showing the accessories of the book.

16 (a) and 16 (b) are a plan view and a side view of a gear device according to a third embodiment of the present invention.

FIG. 17 is a plan view of a gear device for transmitting the power of a register roller to a sensor roller according to the third embodiment; FIG.

18 is a side view showing an auxiliary guide of a typical document separator.

19 is a side view for explaining a fourth embodiment of the present invention.

20 is a plan view showing a guide plate of a fourth embodiment.

21 is a perspective view showing a modification of the fourth embodiment of the present invention.

Fig. 22 is a structural diagram showing opening and closing of an image input unit to which the fifth embodiment is applied.

23 is an explanatory diagram for illustrating a fastening state of a switch button.

24 is a perspective view showing the engagement state of the lever and the shaft.

25 is a sectional view showing the main parts of the hinge section in which the image input section is opened and closed.

26 is an exploded perspective view of the hinge portion

* Explanation of symbols for main parts of the drawings

105: guide roller 106: original separation roller

107: register roller 108: discharge roller

110: sensor roller 112: motor

113: gear unit 127, 128: sensor

140: image reading sensor 300, 300 ': sensor

501: support bracket 509: leaf spring

510: bracket 540: auxiliary bracket

607, 607 ': auxiliary guide 608: leaf spring

609: guide rod 700: image input unit

710, 720: switch button 711, 721: spring spring

712, 722: bracket 750, 760: lever

800: support bracket 810: torsion bar

850, 850 ': Bush

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document feeder of an image processing apparatus, and more particularly, to a feeder for preventing jams of documents fed from a fax machine.

In the document feeder of the conventional image transfer apparatus, the guide roller and the document separator roller are rotated by the rotation of the initial driving motor when the sender is transported to transfer the sender, and the sender is placed on the center line of the register roller. When it reaches, the drive motor rotates in reverse to transmit power to the register roller and the out roller.

When the driving motor is switched in the reverse rotation direction, a relay process of a transmission original is generated instantaneously. In this case, the original transfer becomes incomplete and a bad transfer occurs.

In addition, in the process of reading the transmission document by the image reading sensor, the document passing through this area is transferred by the sensor roller mounted on the upper structure, and the sensor roller is powered by the roller mounted on the lower structure. It has a predetermined contact force with the image reading sensor by a spring of the bracket mounted to the upper structure.

If the prior art described in detail with reference to the accompanying drawings as follows.

Figure 1 (a) is a plan view of the lower structure of the power transmission device for conventional document transfer, Figure 1 (b) is a plan view of the upper structure of the motion transfer device.

As shown in FIG. 1 (a), the conventional facsimile drive device installs the frames 101 and 102 side by side, and the guide roller 105 and the document separation roller (from the entrance side to which the transmission document is fed). 106, the register roller 107 and the discharge roller 108 are arranged in sequence.

In addition, a drive motor 112 is installed at one side of the frame to transmit power to each roller, and the gear (to selectively transfer the power of the drive motor to the document separation roller 106 and the register roller 107). 114, 115, 116, 117, 118 and one-way clutches 119, 120 are housed in the gear box 113 and arranged.

In addition, the document separation roller 106 received power from the drive motor 112 is coupled by the pulleys 124, 126 and the timing belt 125 to transmit power to the guide roller 105, the register The roller 107 is coupled to the discharge roller by the pulley 121, 123 and the timing belt 122 to transmit power to the discharge roller 108.

The roller 109, the rollers 109 and pulleys 129, 131 and the timing belt which are rotated in contact with the register roller 107 of the lower structure as shown in FIG. Sensor roller 110, leaf spring 132, 133 is coupled by the rotation 130 is mounted to the bracket 104 and the discharge roller to apply a predetermined pressure to the roller 109 and the discharge roller 111 The upper structure on which the 111 is mounted is assembled and seated.

Referring to the operation of the conventional drive device configured as described above are as follows.

Referring to the power transmission process for the lower structure with reference to Figure 1 (a), when the first drive motor 112 is driven in the forward direction, the original separation roller 106 through the one-way clutch 120 of the gear box 113 Is rotated, the rotational force of the document separation roller is transmitted to the guide roller 105 through the pulleys 124, 126 and the timing belt 125, and the document separation roller and the guide roller rotate to rotate the document of the document loading portion. Transfer it.

Next, when the document reaches the register roller 107 and the driving motor 112 is driven in the reverse direction, the register roller 107 is rotated through the one-way clutch 119 of the gearbox 113, and the rotational force of the register roller is rotated. Is transmitted to the discharge roller 108 through the pulley 121, 123 and the timing belt 122, and at the same time the roller 109 of the upper structure in contact with the register roller is rotated.

In addition, as the roller 109 in contact with the register roller rotates, the sensor roller 110 rotates.

When the original is detected by the sensor 128 in this series of operations, the original is transferred to the front of the center line of the register roller according to the constant pulse of the motor, and then the motor 112 is driven in the reverse direction, and the relay of the transmitting original is executed. The process occurs instantaneously and the leading edge of the original is sensed by the sensor 127, and the reading is started on the paper sensing line 103. At this time, the relay process is incomplete and there are disastrous moments in the document transfer itself. (Jam) and misfeeding problem occurs.

The problem is that the register roller is rotated during the reverse rotation of the motor, the original separation roller is a stationary state is one cause.

2 to 4 are perspective views for explaining the state of the cucumber feeding generated in the conventional relay process.

2 is a case where the end alignment of the document to be conveyed is wrong, and the original inserted into the Nipion formed by the register roller 107 and the roller 109 mounted on the upper structure rotated in contact with the register roller is shown. The left end shows an incompletely conveyed state inclined by a ° with respect to the center line.

FIG. 3 shows a state in which the right end of the document inserted into the recess formed by the register roller and the roller 109 is inclined by b ° with respect to the center line and is less conveyed.

FIG. 4 shows a state in which an original inserted into the recess formed by the register roller and the roller 109 is unsafely transported by Xmm with respect to the center line as a whole.

As shown in Figs. 2 to 4, the relay process is operated unsafely because the document whose tip alignment is unstable is relayed by a motor driven with a constant pulse.

In other words, the occurrence of shock is detected in the sections I, II, III and IV, V, VI, and the image detection process cannot be performed in the paper detection line 103.

Also, referring to FIGS. 1 (a) and 1 (b), the rotational force of the register roller 107 mounted on the lower structure is transmitted to the roller 109 shown in FIG. 1 (b) by frictional force. do.

As shown in FIG. 5, the roller 109 that receives power from the register roller is in close contact with the glass plate on the image reading sensor 140 by the pulleys 129, 131 and the timing belt 130. Power is transmitted to the sensor roller 110 in contact with the pressure.

In order to support this series of power transmission, as shown in FIG. 1 (b), a bracket 104 is installed in the upper structure, and a leaf spring is mounted on the bracket to apply a predetermined pressure to the roller shaft.

However, in the conventional power transmission as described above, since the rotational force transmitted to the sensor roller is transmitted in dependence on the frictional force between the register roller and the roller 109, the necessary feed speed of the document passing through the sensor detection area must be kept constant. In order to maintain a predetermined contact force with the image reading sensor, the axis of the sensor roller is pressurized by a spring on which the bracket of the upper structure is mounted so that the rotational force is transmitted by the frictional force to maintain a constant feed rate. It becomes difficult to do, and also complicated to manufacture and maintain the auxiliary device for transmitting the rotational force is complicated.

Therefore, an object of the present invention is to solve the problems described above, to improve the reliability by solving the instability of the relay process during the transmission of the transmission document, in particular, the distortion of the transmission document generated during the transfer, such as emergency The purpose is to prevent the occurrence of shock by solving the problem.

Another object of the present invention is a simple device that the image reading sensor and the sensor roller in contact with a constant pressure to improve the reliability of the reading of the image and the transfer of the document, and also to facilitate the smooth transfer throughout the document transfer, First aid is to make it easy.

In order to achieve this object, the document feeder according to the first embodiment of the present invention is driven by a drive motor for supplying power to a roller, and is driven by initial driving of the drive motor to rotate and drive the document separation roller and guide roller. A gear system for rotating the register roller by receiving power when the motor is driven backward, a register roller, a document separation roller and a guide roller coupled to the gear system, and a power supplied to the register roller when the driving motor is driven backward. It consists of a power transmission means for delivering to.

In the document feeder of the second embodiment of the present invention, a sensor is installed to solve a defect in a transfer occurring in a relay process occurring at a center line between a register roller of a lower structure and a roller of an upper structure. The front end of the document is detected, and if the document is not detected, the motor is repeatedly driven.

The document feeder according to the third embodiment of the present invention includes a power transmission means for transmitting a rotational force through a gear to a sensor roller 204 for transferring a document passing through an image reading sensor area, and the image reading sensor 107. And a bracket 510 mounted to the lower structure to be rotatable, and elastic means for contacting the image reading sensor mounted on the bracket with the sensor roller at a predetermined pressure.

The document feeder of the fourth embodiment according to the present invention includes a guide roller having a plurality of guide rods divided into predetermined angles, and a tip end mounted on an upper structure and in contact with the guide rods and in contact with the guide rods is formed in a curved surface, and a plate It includes a guide plate which is spring-loaded and elastically supported.

The document feeder according to the fifth embodiment of the present invention is a lever rotated by a hinge portion for rotating the image input portion at a constant angle, a switch portion for linear reciprocating operation, and the switch portion to be fixed and detached from the lower body. An upper part consisting of an image input unit opening and closing device consisting of a portion, a switch unit for linear reciprocating operation mounted on the upper structure to open and close the upper structure from the image input portion, and a lever portion for fixing and detaching the upper structure by the operation of the switch portion. It consists of a structure switchgear.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

From now on, the same components are denoted by the same reference numerals.

6 and 7 are plan views of the lower structure of the document feeder for explaining the first embodiment of the present invention.

First, referring to FIG. 6, the principle of the first embodiment will be described. The guide rollers 105, the document separation roller 106, the register rollers 107, and the discharge rollers (not shown) on the frames 101 and 102 are illustrated. Is installed).

A drive motor is mounted on one side of the frame and each of the gears 310, 311, 312, 314, 315, and 317 for transmitting power by the gear 309 of the drive motor. ), 318 and one-way clutches 313 and 316 are installed, and on the opposite side, the document separation roller 106 and the register roller 107 are provided through the pulleys 319, 321 and the belt 320. Coupling each other, a one-way clutch 319 'is mounted in the pulley 319.

When setting the transmission document in the document transfer device configured as described above (SETTING), the vertical sensing sensor 128 detects this, and the driving motor 112 is driven in the forward direction, and the step gear (309) through the gear 309 of the driving motor ( Power is transmitted to 310, 311 and gears 314, 315, 317, and 318, and the document separation roller 106 and guide roller 105 rotate through the one-way clutch 316. The document is transferred.

At this time, the document separation roller 106 and the guide roller 105 are rotated by the driving motor, but power is not transmitted to the register roller 107 by the functions of the one-way clutches 312 and 319 '. Do not.

At this time, after setting the original, the paper detection sensor 128 detects the original and transfers it from the moment the original is transferred to the paper detecting line 103 to process the image reading process in a batch. This is difficult because problems such as the distortion of the left and right of the originals in the transmission and the counting of the originals when transferring multiple sheets in one setting occur.

Therefore, the document conveyed by the guide roller and the document separation roller is conveyed to the front of the center line of the register roller 107, and then the ends of the document are aligned.

Next, when the driving direction of the motor 112 is driven in the reverse direction, power is transmitted to the register roller 107 through the gears 310, 312 and the one-way clutch 313 coupled to the gear 309 of the motor.

The power transmitted to the register roller rotates the document separation roller 106 by the pulleys 321, 319 and the belt 320, and the one-way clutch 319 ′ mounted on the pulley 319.

Therefore, the transmission document whose tip is aligned to the front of the register roller 205 is continuously conveyed by the rotation of the register roller and the document separation roller.

The originals conveyed in this way are detected by the sensor 127, and when they reach the paper detection line 103, they are read by the image reading sensor, and discharged through the discharge roller when the reading is completed.

An example of the first embodiment will be described with reference to FIG.

Guide rollers 105, document separation rollers 106, register rollers 107, and discharge rollers 108 are installed on the frames 101 and 102, and motors (as shown in FIG. 112 and the respective gears 408, 409, 410, 411, 413, 414, 416, and (7) for transmitting the power of the motor to the document separation roller and the register roller. 417 and one-way clutches 412 and 415 are installed, and on the opposite side, gears 423 are mounted on the register roller shaft and mounted on the original separation roller shaft via gears 420, 421 and 422. Gear 418, which is equipped with a one-way clutch 419.

In addition, the original separation roller shaft is equipped with a gear 424 on which the one-way clutch 425 is mounted and coupled with the gear 429 on the guide roller shaft through the gears 426, 427, and 428. .

Referring to the operation of the first embodiment configured as described above, the original separation roller is driven through the gears 408, 409, 411 and the one-way clutch 412 according to the forward driving of the initial motor, Power is transmitted to the guide roller through the one-way clutch 425 to rotate the document separation roller and the guide roller.

At this time, the power transmitted to the document separation roller is not transmitted to the register roller by the function of the one-way clutch 419.

When the document separation roller and the guide roller rotate and the document reaches the front of the center line of the register roller and the document leading edge is aligned, the motor is driven in the reverse direction and its power is controlled by the gears 408, 409, 410, 413. ), 414, and the one-way clutch 415 are transmitted to the register roller 107, and the gears 416, 417 are transmitted to the discharge roller 108.

The power transmitted to the register roller is transmitted to the gear 423 attached to the register roller shaft and the gear 418 mounted to the original separation roller shaft via the connecting gears 420, 421, and 422. It is transmitted to the document separation roller through the one-way clutch 419 mounted on the gear 418.

Therefore, the documents which have been aligned at the front end of the register roller center line are continuously conveyed by the rotation of the register roller and the document separation roller.

Therefore, according to the present invention as described above, it is possible to minimize the transmission of the original document by solving the incomplete relay process occurring in the front portion of the register roller when the original is transferred in the conventional manner.

In addition, the first embodiment of the present invention is not limited to the above-described example, but can be further modified, and can be usefully used for an image transmission apparatus including a facsimile driving apparatus. Next, a second embodiment of the present invention will be described in detail with reference to FIGS. 8 to 13.

The second embodiment according to the present invention is for preventing sprains occurring during the relaying process of a document to be conveyed, and particularly for solving the problems of the prior art described with reference to FIGS. 2 to 4.

According to the second embodiment of the present invention, as shown in FIG. 8, the sensors 300 and 300 'are installed at the position of the center line (C line) where the register roller and the roller 109 are in contact with each other. By detecting the leading edge of the original, and repeatedly driving the motor if the original is not detected, it is possible to prevent incomplete transfer as shown in FIGS. 2 to 4 and to minimize the paper jam occurring in the relay process. .

9 (a) to 9 (c) are a plan view, a side view, and a front view showing a state in which the sensors 300 and 300 'are installed in the bracket 104 of the upper structure.

The leaf springs 132 for elastically supporting the rollers are provided on the side portions of the brackets, and the sensors 300 and 300 'are formed in parallel with the leaf springs.

As shown in FIG. 9 (c), the sensor is equipped with levers 301 and 301 ', and the lever detects an original and operates.

Referring to the process operated by the sensor in more detail, as shown in FIG. 10, the presence or absence of a document is detected by the sensor 128 in line A, and the originals mounted in line B are separated one by one, and line C is shown. The register roller 107 and the roller 109 instantaneously relay the incoming document.

Before the document is relayed by the register roller and the roller 109, the sensor 300 detects the document on the E line.

The relayed document is read after the tip is sensed by the sensor 127 on the D line.

As shown in FIG. 11, each section is driven while being driven by a, b, c, d pulses. The document is transferred by the flow chart as shown in FIG.

In this case, the sensors 300 and 300 'are installed slightly ahead of the center line C in consideration of the recesses formed by the contact between the register roller and the roller 109.

Therefore, when the document is transferred through the transfer path, the flow chart of FIG. 12 is repeated by the sensors 300 and 300 'in the section BC, and by the repeating operation, the register roller and the roller 109 If the original alignment at the front part of the upper part is completed, the process after the interval C after the original is relayed is performed.

FIG. 12 is a flowchart showing the operation of the sensors 300 and 300 '. After the paper is detected by the paper sensor 128, the document is transferred and the alignment of the document is performed by the sensors 300 and 300'. Detect.

If the originals are not detected by the sensors 300 and 300 ', the motor drive and the original detection are repeated to transfer the originals by the motor drive when the originals are detected.

Therefore, after the incomplete document transfer is confirmed by the sensors 300 and 300 'and the document is aligned, a relay process occurs so that the problem of misfeeds can be solved.

13 (a) and 13 (b) are plan views showing the transfer device of the present invention with a sensor.

The sensor 300 (not shown), (| 300 | ') is mounted on the bracket 104 of the upper structure and draws the original at the sensor position points 400, 400' on the center line of the register roller 107. Detect.

That is, the original separation roller 106 and the guide roller 105 are rotated by the initial driving of the motor, and at this time, the conveyed original is transferred to the convex portions of the register roller 107 and the roller 109.

Sensors 300 and 300 'detect the originals at positions 400 and 400', and when the originals are detected, the register roller is rotated by the reverse driving of the motor and transferred to the hatched paper detection line to read the image. This is done.

If the original is not detected, the motor driving and the original detection are repeatedly performed according to the flowchart shown in FIG.

Therefore, by identifying and rearranging the misconducted originals, it is possible to prevent the occurrence of jamming due to incomplete document transfer.

According to the second embodiment of the present invention as described above, it is possible to minimize the shock generated during the incomplete relay process, and also to efficiently carry out the document by checking the document alignment and rearranging when misfeeding occurs.

Next, a third embodiment according to the present invention will be described with reference to FIGS. 14 to 17.

In the third embodiment of the present invention, the image reading sensor and the sensor roller are contacted at a constant pressure with a simple device to improve the reliability of image reading and document transfer, and also to improve the reliability of power transmitted to the sensor roller. It is to provide a document feeder.

Fig. 14 is a side view of the document feeder according to the third embodiment, and the configuration thereof will be described below with reference to this.

The direction of the arrow is the direction in which the originals are transferred, and the originals are transferred while the rollers mounted on the upper structure and the rollers mounted on the lower structure are rotated based on the dotted lines shown along the original transfer direction.

The power generated by the drive motor is transmitted to the register roller 107, the power transmitted to the register roller is transmitted to the gears 532, 533 through the gear 531 installed on the shaft of the register roller, It is transmitted to the sensor roller 110 installed in the upper structure by 533.

The gear 532 is mounted to the lower structure and the gear 533 is rotatably mounted to the gear 532 by the auxiliary bracket (540).

The auxiliary bracket 540 is formed with a pin 520 'and inserted into the through hole 541 formed in the lower structure, and then coupled by the pin 520 and the spring 521 formed in the upper structure.

Accordingly, the gear 533 is coupled to the gear 534 of the sensor roller by a spring 521 to transmit power.

Next, the image reading sensor 140 in contact with the sensor roller at a predetermined pressure is mounted on the bracket 510 rotatably mounted to the lower structure, and the bracket is pivotally mounted on the lower structure through the pin 503. Combined.

A support bracket 501 is mounted to the lower structure through the pupils 521 and 512 'at the lower portion of the image reading sensor 140, and a plate spring 509 is attached to the support bracket to the image reading sensor. It is installed to support elastically.

The image reading sensor is in flexible contact with the sensor roller at a predetermined pressure by a leaf spring installed on the support bracket.

Next, the configuration will be described with reference to the detailed structural diagram of the document feeder according to the third embodiment of the present invention.

15 (a) and 15 (b) are a plan view and a side view of a device for constantly contacting a sensor roller and an image reading sensor at a predetermined pressure according to a third embodiment of the present invention.

The bracket 510 on which the image reading sensor is mounted is rotatably mounted with the pins 503 and 503 'mounted on the frames 101 and 102 of the lower structure, respectively. Rings 504, 505, 504 ′ and 505 ′ are respectively mounted to the pins to prevent separation of the 503 and 503 ′.

The support bracket 501 is fixed to the lower structure by a screw at a predetermined distance downward from the image reading sensor mounted on the bracket.

The support bracket is mounted with a leaf spring 509 for elastically supporting the image reading sensor in contact with the image reading sensor. The leaf spring serves to make the image reading sensor contact the sensor roller at a predetermined pressure.

In addition, a locking plate 513 is formed on the bracket 510 to prevent the image reading sensor elastically supported by the leaf spring from excessively protruding upward.

16 (a) and 16 (b) are a plan view and a side view of a device for transmitting power transmitted from a drive motor to a resistor roller through a gear to the sensor roller.

The gear 532 is fixed to the lower structure to receive power from a gear (not shown) mounted on the register roller is mounted on the lower structure is fixed, and receives the power from the gear 532 sensor The gear 533 for transmission to the roller is rotatably coupled to the shaft of the gear 532 by the auxiliary bracket 540.

The auxiliary bracket has a pin 520 'is inserted into the through hole 541 formed in the lower structure, the pin 520' is a pin 520 and the spring formed in the upper structure as shown in FIG. 521 is connected.

Accordingly, the gear 533 is flexibly and elastically coupled by the spring 521 to transmit rotational force to the sensor roller.

FIG. 17 is a plan view showing a gear device for transmitting the power of the register roller to the sensor roller. When the register roller 107 is rotated, the gears 532, 533 through the gear 531 mounted on the shaft of the register roller are rotated. ) Is transmitted to the sensor roller mounted on the upper structure by the gear (533).

The document feeder of the third embodiment of the present invention as described above enables the sensor roller to rotate at a constant speed with a predetermined contact force to the image reading sensor, thereby improving the reliability of document feed. Through the sensor roller, it is possible to simplify the auxiliary device involved in the document transfer through the image reading sensor area.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. 18 to 21.

A fourth embodiment according to the present invention is to provide an auxiliary device which improves the reliability of a conveying device in conveying a document loaded on a document loading section through a guide roller and a document separation roller.

FIG. 18 is a side view showing an auxiliary guide of a general document separator, and an auxiliary guide 607 for guiding the document conveyed through the guide roller 105 and an auxiliary guide for guiding the document conveyed through the document separator roller 106. 606 is mounted to the superstructure and disposed in contact with each roller.

At this time, the process of separating the originals by inserting the originals loaded on the document loading section through the guide rollers and transferring them to the original separation roller is also very important in the overall document transfer mechanism.

19 is a side view for explaining the fourth embodiment of the present invention.

As shown in FIG. 19, the guide roller 605 is formed with three guide rods 609 for introducing the originals loaded on the document loading portion 601. As shown in FIG.

A guide plate 607 'is mounted on the upper structure to transfer the document in contact with the guide rod, and a leaf spring 608 for elastically supporting the guide plate is mounted.

The guide plate is formed such that the tip portion in contact with the guide rod of the guide roller to form a curved surface, as shown in Figure 20 the ends of both shafts are inserted into the upper structure is coupled.

21 is a perspective view showing a modification of the fourth embodiment of the present invention, in which the role of the guide plate is replaced by the roller 610.

According to the fourth embodiment of the present invention configured as described above, the document loaded on the document loading part can be smoothly conveyed by the guide rod and the guide plate of the guide roller, and the tip is constantly supported at a predetermined pressure and the tip is curved. Negatives can increase the reliability of manuscript introduction.

Next, a fifth embodiment of the present invention will be described with reference to FIGS. 22 to 26.

The fifth embodiment is to provide a fastening device for fastening to open and close the image input unit mounted on the lower body.

22 is a structural diagram showing opening and closing of the image input unit to which the fifth embodiment is applied.

It is possible to open and close the image input unit 700 from the lower body 800 as shown by the dotted line through the switch button 710 installed on the top of the image input unit, and also the upper structure of the A part by the switch button 720 (described above). Can be opened and closed.

23 is an explanatory diagram for illustrating a fastening state of a switch button.

First, a fastening device for opening and closing the image input unit will be described. A spring 711 is mounted on the switch button 710, and an axis of the button into which the spring is inserted is inserted into a through hole formed in the center of the bracket 712. Combined.

The shaft of the switch button is disposed in contact with the bracket 780 coupled to the end of the shaft 740 mounted to the frame of the image input unit.

Lever 750 and 750 '(not shown) are mounted on the shaft 740, respectively, and are coupled to pins 740 and 720' (not shown) formed on the lower body to fix the image input unit. .

Therefore, when the switch button is pressed, the lever is rotated to open the image input unit by the force of the hinge unit described later.

The fastening device for opening and closing the upper structure is coupled to the switch button 720, the spring 721 is inserted into the bracket 722 fixed to the lower structure, the shaft of the switch bracket 780 fixed to the shaft 740 ' Placed in contact with ').

The shaft 740 'is equipped with levers 760 and 760' (not shown), and the lever is coupled to the upper pins 760 and 760 '(not shown) formed in the upper structure. Secure the structure.

Therefore, when the switch button 720 is pressed, the lever is rotated to release the upper structure.

24 is a perspective view showing the engagement state of the lever and the shaft.

Rings 741, 741 ′ and levers 750, 750 ′ are inserted into both sides of the shaft 740, and pins 751 and 751 ′ are inserted into the shaft holes of the lever. do.

The lever has a semi-cyclic hook portion for engaging with the pin formed in the lower body, the pin hole (751, 751 ') is inserted into the shaft hole of the lever is formed with a slot (slot) for engaging the lever. .

In addition, a through hole is formed at one end of the shaft 740, and the bracket 780 is fixed through the through hole.

Next, as shown in FIG. 22, the hinge part is opened so that the image input part is opened only by a predetermined angle by the fastening device.

25 is a sectional view showing the main portion of the hinge portion in which the image input portion is opened and closed, and FIG. 26 is an exploded perspective view of the hinge portion.

The hinge portion is a support bracket 800 for supporting the rotation shaft is fixed to the bottom plate of the lower body, the upper end of the support bracket bush (850, 850 ') for coupling the bushing to form a rotation shaft 801 , 802 is formed, and a locking jaw 802 is formed to support a torsion bar 810 coupled to the shaft hole.

A ring 830 and a bracket 840 are coupled to the shaft hole by the bush 850 on the right side of the support bracket, and the fixing bracket 820 and the torsion bar 810 are bushes 850 'on the left side of the support bracket. Is coupled to the shaft hole.

The fixing bracket 820 is fixed to the support bracket 800 by bolts, and the bushes 850 and 850 'are coupled and fixed to each other through protrusions formed in the shaft hole.

In the fifth embodiment of the present invention configured as described above, as shown in FIG. 22, the image input unit can be opened at a predetermined angle by pressing the switch button 710, and the lever is coupled to the pin by gently pressing it. Can be fixed.

In addition, when 쨈 occurs during the transfer of the document, by pressing the switch button 720, the upper structure is opened to simply perform first aid.

As described above, the transfer device of the present invention can improve the reliability by solving the instability of the relay process when transferring the originals, and in particular, minimize the occurrence of warp by solving the distortion, misfeed, etc. of the originals generated during the transfer. can do.

In addition, the image reading sensor and the sensor roller can be contacted at a constant pressure with a simple device to improve the image reading function, and the document is smoothly transferred from the process of inserting the document by the guide roller to the image reading process. It can be expected, and furthermore, it is possible to provide a document transfer device that can easily perform first aid in case of shock.

Claims (6)

In the document feeder of the image processing apparatus in which the document separation roller and the guide roller rotate when the motor is driven forward, the document is rotated, and when the document reaches the register roller, the relay process of the document occurs by the reverse driving of the motor. A drive motor for supplying power to the roller, a gear system for rotating the document separation roller and guide roller under power when driving the drive motor forward, and a resistor roller under power when the drive motor is driven backward; Register rollers, document separation rollers and guide rollers coupled to the system, power transmission means for transferring power supplied to the register rollers to the document separation rollers when the drive motor is driven back, and the leading edges of the documents transferred to the register rollers. Sensors 300, 300 'installed adjacent to the centerline of the register rollers for sensing And a power transmission means for transmitting rotational force through a gear to a sensor roller for transferring the document passing through the image reading sensor area, a bracket mounted with the image reading sensor and rotatably mounted on the lower structure, and mounted on the bracket. And an elastic means for contacting said image reading sensor with said sensor roller at a predetermined pressure. A conveying apparatus including a guide roller and an auxiliary guide to feed an original from the document loading portion of the image transfer device, comprising: a guide roller having a plurality of guide rods divided at predetermined angles, and attached to the upper structure; A document feeder of an image processing apparatus comprising a guide plate which is in contact with a guide rod and the tip is in contact with the guide rod is curved, the plate spring is mounted and elastically supported. The document feeder of claim 2, wherein the guide plate is formed of a roller. An image processing apparatus including an image input unit and a lower body for transferring an original and reading an image, comprising: a hinge unit for rotating the image input unit at a predetermined angle, a switch unit for linear reciprocating operation, and the switch unit Image input unit opening and closing device consisting of a lever unit is fixed and detached to the lower body, and the upper structure is mounted on the upper structure to open and close the upper structure from the image input unit fixed to the reciprocating operation and the upper structure fixed by the operation of the switch unit And an upper structure opening and closing device constituted by a lever part for detaching. The bracket 840 and the ring of claim 4, wherein the hinge portion has a support bracket 800 having a shaft hole 801 and a locking jaw 802, and a locking jaw coupled to the support bracket by a bush 850. 830, a fixed bracket fixed to the bracket and coupled to the bush 850 ', a torsion bar coupled to the shaft hole 801 to rotate, and bushes 850 and 850'. 5. The shaft of claim 4, wherein the switch unit comprises a bracket 712 mounted to the image input unit, a switch button inserted into the bracket, and a spring inserted into the switch button, wherein the lever unit is mounted to the image input unit. And a bracket (780) fixed to both sides of the shaft, and a bracket (780) fixed to one side of the shaft.